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pre-0.83
putty-source/unix/window.c
Ben Harris 09095a7d92 Avoid treating non-X GDK display names as X ones 
When running on Wayland, gdk_display_get_name() can return things like
"wayland-0" rather than valid X display names.  PuTTY nonetheless
treated them as X display names, meaning that when running under
Wayland, pterm would set DISPLAY to "wayland-0" in subprocesses, and
PuTTY's X forwarding wouldn't work properly.

To fix this, places that call gdk_display_get_name() now only do so on
displays for which GDK_IS_X_DISPLAY() is true.  As with
GDK_IS_X_WINDOW(), this requires some backward-compatibility for GDK
versions where everything is implicitly running on X.

To make this work usefully, pterm now also won't unset DISPLAY if it
can't get an X display name and instead will pass through whatever value
of DISPLAY it received.  I think that's better behaviour anyway.

There are two separate parts of PuTTY that call gdk_display_get_name().
platform_get_x_display() in unix/putty.c is used for X forwarding, while
gtk_seat_get_x_display() in unix/window.c is used used for setting DISPLAY
and recording in utmp.  I've updated both of them.
2024-12-15 00:07:21 +00:00

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/*
* window.c: the main code that runs a PuTTY terminal emulator and
* backend in a GTK window.
*/
#define _GNU_SOURCE
#include <string.h>
#include <assert.h>
#include <stdlib.h>
#include <string.h>
#include <signal.h>
#include <stdio.h>
#include <time.h>
#include <errno.h>
#include <locale.h>
#include <fcntl.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <gtk/gtk.h>
#if !GTK_CHECK_VERSION(3,0,0)
#include <gdk/gdkkeysyms.h>
#endif
#if GTK_CHECK_VERSION(2,0,0)
#include <gtk/gtkimmodule.h>
#endif
#define MAY_REFER_TO_GTK_IN_HEADERS
#include "putty.h"
#include "terminal.h"
#include "gtkcompat.h"
#include "unifont.h"
#include "gtkmisc.h"
#ifndef NOT_X_WINDOWS
#include <gdk/gdkx.h>
#include <X11/Xlib.h>
#include <X11/Xutil.h>
#include <X11/Xatom.h>
#endif
#include "x11misc.h"
GdkAtom compound_text_atom, utf8_string_atom;
static GdkAtom clipboard_atom
#if GTK_CHECK_VERSION(2,0,0) /* GTK1 will have to fill this in at startup */
= GDK_SELECTION_CLIPBOARD
#endif
;
#ifdef JUST_USE_GTK_CLIPBOARD_UTF8
/*
* Because calling gtk_clipboard_set_with_data triggers a call to the
* clipboard_clear function from the last time, we need to arrange a
* way to distinguish a real call to clipboard_clear for the _new_
* instance of the clipboard data from the leftover call for the
* outgoing one. We do this by setting the user data field in our
* gtk_clipboard_set_with_data() call, instead of the obvious pointer
* to 'inst', to one of these.
*/
struct clipboard_data_instance {
char *pasteout_data_utf8;
int pasteout_data_utf8_len;
struct clipboard_state *state;
struct clipboard_data_instance *next, *prev;
};
#endif
struct clipboard_state {
GtkFrontend *inst;
int clipboard;
GdkAtom atom;
#ifdef JUST_USE_GTK_CLIPBOARD_UTF8
GtkClipboard *gtkclipboard;
struct clipboard_data_instance *current_cdi;
#else
char *pasteout_data, *pasteout_data_ctext, *pasteout_data_utf8;
int pasteout_data_len, pasteout_data_ctext_len, pasteout_data_utf8_len;
#endif
};
typedef struct XpmHolder XpmHolder; /* only used for GTK 1 */
struct GtkFrontend {
GtkWidget *window, *area, *sbar;
gboolean sbar_visible;
gboolean drawing_area_got_size, drawing_area_realised;
gboolean drawing_area_setup_needed;
bool drawing_area_setup_called;
GtkBox *hbox;
GtkAdjustment *sbar_adjust;
GtkWidget *menu, *specialsmenu, *specialsitem1, *specialsitem2,
*restartitem;
GtkWidget *sessionsmenu;
#ifndef NOT_X_WINDOWS
Display *disp;
#endif
#ifndef NO_BACKING_PIXMAPS
/*
* Server-side pixmap which we use to cache the terminal window's
* contents. When we draw text in the terminal, we draw it to this
* pixmap first, and then blit from there to the actual window;
* this way, X expose events can be handled with an absolute
* minimum of network traffic, by just sending a command to
* re-blit an appropriate rectangle from this pixmap.
*/
GdkPixmap *pixmap;
#endif
#ifdef DRAW_TEXT_CAIRO
/*
* If we're drawing using Cairo, we cache the same image on the
* client side in a Cairo surface.
*
* In GTK2+Cairo, this happens _as well_ as having the server-side
* pixmap cache above; in GTK3+Cairo, server-side pixmaps are
* deprecated, so we _just_ have this client-side cache. In the
* latter case that means we have to transmit a big wodge of
* bitmap data over the X connection on every expose event; but
* GTK3 apparently deliberately provides no way to avoid that
* inefficiency, and at least this way we don't _also_ have to
* redo any font rendering just because the window was temporarily
* covered.
*/
cairo_surface_t *surface;
#endif
int backing_w, backing_h;
#if GTK_CHECK_VERSION(2,0,0)
GtkIMContext *imc;
#endif
unifont *fonts[4]; /* normal, bold, wide, widebold */
int xpos, ypos, gravity;
bool gotpos;
GdkCursor *rawcursor, *textcursor, *blankcursor, *waitcursor, *currcursor;
GdkColor cols[OSC4_NCOLOURS]; /* indexed by xterm colour indices */
#if !GTK_CHECK_VERSION(3,0,0)
GdkColormap *colmap;
#endif
bool direct_to_font;
struct clipboard_state clipstates[N_CLIPBOARDS];
#ifdef JUST_USE_GTK_CLIPBOARD_UTF8
/* Remember all clipboard_data_instance structures currently
* associated with this GtkFrontend, in case they're still around
* when it gets destroyed */
struct clipboard_data_instance cdi_headtail;
#endif
int clipboard_ctrlshiftins, clipboard_ctrlshiftcv;
int font_width, font_height;
int width, height, scale;
bool ignore_sbar;
bool mouseptr_visible;
BusyStatus busy_status;
int alt_keycode;
int alt_digits;
char *wintitle;
char *icontitle;
int master_fd, master_func_id;
Ldisc *ldisc;
Backend *backend;
Terminal *term;
cmdline_get_passwd_input_state cmdline_get_passwd_state;
LogContext *logctx;
bool exited;
struct unicode_data ucsdata;
Conf *conf;
eventlog_stuff *eventlogstuff;
guint32 input_event_time; /* Timestamp of the most recent input event. */
GtkWidget *dialogs[DIALOG_SLOT_LIMIT];
#if GTK_CHECK_VERSION(3,4,0)
gdouble cumulative_hscroll, cumulative_vscroll;
#endif
/* Cached things out of conf that we refer to a lot */
int bold_style;
int window_border;
int cursor_type;
int drawtype;
int meta_mod_mask;
#ifdef OSX_META_KEY_CONFIG
int system_mod_mask;
#endif
bool send_raw_mouse;
bool pointer_indicates_raw_mouse;
unifont_drawctx uctx;
#if GTK_CHECK_VERSION(2,0,0)
GdkPixbuf *trust_sigil_pb;
#else
GdkPixmap *trust_sigil_pm;
#endif
int trust_sigil_w, trust_sigil_h;
/*
* Not every GDK backend can be relied on 100% to reply to a
* resize request in a timely manner. (In X11 it's all
* asynchronous and goes via the window manager, and if your
* window manager is seriously unwell, you'd rather not have
* terminal windows start becoming unusable as a knock-on effect,
* since those are just the thing you might need to use for
* emergency WM maintenance!)
*
* So when we ask GTK to resize our terminal window, we also set a
* 5-second timer, after which we'll regretfully conclude that a
* resize (or ConfigureNotify telling us no resize took place) is
* probably not going to happen after all.
*/
bool win_resize_pending, term_resize_notification_required;
long win_resize_timeout;
#define WIN_RESIZE_TIMEOUT (TICKSPERSEC*5)
Seat seat;
TermWin termwin;
LogPolicy logpolicy;
};
static void cache_conf_values(GtkFrontend *inst)
{
inst->bold_style = conf_get_int(inst->conf, CONF_bold_style);
inst->window_border = conf_get_int(inst->conf, CONF_window_border);
inst->cursor_type = conf_get_int(inst->conf, CONF_cursor_type);
#ifdef OSX_META_KEY_CONFIG
inst->meta_mod_mask = 0;
if (conf_get_bool(inst->conf, CONF_osx_option_meta))
inst->meta_mod_mask |= GDK_MOD1_MASK;
if (conf_get_bool(inst->conf, CONF_osx_command_meta))
inst->meta_mod_mask |= GDK_MOD2_MASK;
inst->system_mod_mask = GDK_MOD2_MASK & ~inst->meta_mod_mask;
#else
inst->meta_mod_mask = GDK_MOD1_MASK;
#endif
}
static void start_backend(GtkFrontend *inst);
static void exit_callback(void *vinst);
static void destroy_inst_connection(GtkFrontend *inst);
static void delete_inst(GtkFrontend *inst);
static void post_fatal_message_box_toplevel(void *vctx)
{
GtkFrontend *inst = (GtkFrontend *)vctx;
gtk_widget_destroy(inst->window);
}
static void post_fatal_message_box(void *vctx, int result)
{
GtkFrontend *inst = (GtkFrontend *)vctx;
unregister_dialog(&inst->seat, DIALOG_SLOT_CONNECTION_FATAL);
queue_toplevel_callback(post_fatal_message_box_toplevel, inst);
}
static void common_connfatal_message_box(
GtkFrontend *inst, const char *msg, post_dialog_fn_t postfn)
{
char *title = dupcat(appname, " Fatal Error");
GtkWidget *dialog = create_message_box(
inst->window, title, msg,
string_width("REASONABLY LONG LINE OF TEXT FOR BASIC SANITY"),
false, &buttons_ok, postfn, inst);
register_dialog(&inst->seat, DIALOG_SLOT_CONNECTION_FATAL, dialog);
sfree(title);
}
void fatal_message_box(GtkFrontend *inst, const char *msg)
{
common_connfatal_message_box(inst, msg, post_fatal_message_box);
}
static void connection_fatal_callback(void *vctx)
{
GtkFrontend *inst = (GtkFrontend *)vctx;
destroy_inst_connection(inst);
}
static void post_nonfatal_message_box(void *vctx, int result)
{
GtkFrontend *inst = (GtkFrontend *)vctx;
unregister_dialog(&inst->seat, DIALOG_SLOT_CONNECTION_FATAL);
}
static void gtk_seat_connection_fatal(Seat *seat, const char *msg)
{
GtkFrontend *inst = container_of(seat, GtkFrontend, seat);
if (conf_get_int(inst->conf, CONF_close_on_exit) == FORCE_ON) {
fatal_message_box(inst, msg);
} else {
common_connfatal_message_box(inst, msg, post_nonfatal_message_box);
}
inst->exited = true; /* suppress normal exit handling */
queue_toplevel_callback(connection_fatal_callback, inst);
}
static void gtk_seat_nonfatal(Seat *seat, const char *msg)
{
GtkFrontend *inst = container_of(seat, GtkFrontend, seat);
nonfatal_message_box(inst->window, msg);
}
/*
* Default settings that are specific to pterm.
*/
FontSpec *platform_default_fontspec(const char *name)
{
if (!strcmp(name, "Font"))
return fontspec_new(DEFAULT_GTK_FONT);
else
return fontspec_new_default();
}
Filename *platform_default_filename(const char *name)
{
if (!strcmp(name, "LogFileName"))
return filename_from_str("putty.log");
else
return filename_from_str("");
}
char *platform_default_s(const char *name)
{
if (!strcmp(name, "SerialLine"))
return dupstr("/dev/ttyS0");
return NULL;
}
bool platform_default_b(const char *name, bool def)
{
if (!strcmp(name, "WinNameAlways")) {
/* X natively supports icon titles, so use 'em by default */
return false;
}
return def;
}
int platform_default_i(const char *name, int def)
{
if (!strcmp(name, "CloseOnExit"))
return 2; /* maps to FORCE_ON after painful rearrangement :-( */
return def;
}
static char *gtk_seat_get_ttymode(Seat *seat, const char *mode)
{
GtkFrontend *inst = container_of(seat, GtkFrontend, seat);
return term_get_ttymode(inst->term, mode);
}
static size_t gtk_seat_output(Seat *seat, SeatOutputType type,
const void *data, size_t len)
{
GtkFrontend *inst = container_of(seat, GtkFrontend, seat);
return term_data(inst->term, data, len);
}
static void gtkwin_unthrottle(TermWin *win, size_t bufsize)
{
GtkFrontend *inst = container_of(win, GtkFrontend, termwin);
if (inst->backend)
backend_unthrottle(inst->backend, bufsize);
}
static bool gtk_seat_eof(Seat *seat)
{
/* GtkFrontend *inst = container_of(seat, GtkFrontend, seat); */
return true; /* do respond to incoming EOF with outgoing */
}
static SeatPromptResult gtk_seat_get_userpass_input(Seat *seat, prompts_t *p)
{
GtkFrontend *inst = container_of(seat, GtkFrontend, seat);
SeatPromptResult spr;
spr = cmdline_get_passwd_input(p, &inst->cmdline_get_passwd_state, true);
if (spr.kind == SPRK_INCOMPLETE)
spr = term_get_userpass_input(inst->term, p);
return spr;
}
static bool gtk_seat_is_utf8(Seat *seat)
{
GtkFrontend *inst = container_of(seat, GtkFrontend, seat);
return inst->ucsdata.line_codepage == CS_UTF8;
}
static void get_window_pixel_size(GtkFrontend *inst, int *w, int *h)
{
/*
* I assume that when the GTK version of this call is available
* we should use it. Not sure how it differs from the GDK one,
* though.
*/
#if GTK_CHECK_VERSION(2,0,0)
gtk_window_get_size(GTK_WINDOW(inst->window), w, h);
#else
gdk_window_get_size(gtk_widget_get_window(inst->window), w, h);
#endif
}
static bool gtk_seat_get_window_pixel_size(Seat *seat, int *w, int *h)
{
GtkFrontend *inst = container_of(seat, GtkFrontend, seat);
get_window_pixel_size(inst, w, h);
return true;
}
StripCtrlChars *gtk_seat_stripctrl_new(
Seat *seat, BinarySink *bs_out, SeatInteractionContext sic)
{
GtkFrontend *inst = container_of(seat, GtkFrontend, seat);
return stripctrl_new_term(bs_out, false, 0, inst->term);
}
static void gtk_seat_notify_remote_exit(Seat *seat);
static void gtk_seat_update_specials_menu(Seat *seat);
static void gtk_seat_set_busy_status(Seat *seat, BusyStatus status);
#ifndef NOT_X_WINDOWS
static const char *gtk_seat_get_x_display(Seat *seat);
static bool gtk_seat_get_windowid(Seat *seat, long *id);
#endif
static void gtk_seat_set_trust_status(Seat *seat, bool trusted);
static bool gtk_seat_can_set_trust_status(Seat *seat);
static bool gtk_seat_get_cursor_position(Seat *seat, int *x, int *y);
static const SeatVtable gtk_seat_vt = {
.output = gtk_seat_output,
.eof = gtk_seat_eof,
.sent = nullseat_sent,
.banner = nullseat_banner_to_stderr,
.get_userpass_input = gtk_seat_get_userpass_input,
.notify_session_started = nullseat_notify_session_started,
.notify_remote_exit = gtk_seat_notify_remote_exit,
.notify_remote_disconnect = nullseat_notify_remote_disconnect,
.connection_fatal = gtk_seat_connection_fatal,
.nonfatal = gtk_seat_nonfatal,
.update_specials_menu = gtk_seat_update_specials_menu,
.get_ttymode = gtk_seat_get_ttymode,
.set_busy_status = gtk_seat_set_busy_status,
.confirm_ssh_host_key = gtk_seat_confirm_ssh_host_key,
.confirm_weak_crypto_primitive = gtk_seat_confirm_weak_crypto_primitive,
.confirm_weak_cached_hostkey = gtk_seat_confirm_weak_cached_hostkey,
.prompt_descriptions = gtk_seat_prompt_descriptions,
.is_utf8 = gtk_seat_is_utf8,
.echoedit_update = nullseat_echoedit_update,
#ifdef NOT_X_WINDOWS
.get_x_display = nullseat_get_x_display,
.get_windowid = nullseat_get_windowid,
#else
.get_x_display = gtk_seat_get_x_display,
.get_windowid = gtk_seat_get_windowid,
#endif
.get_window_pixel_size = gtk_seat_get_window_pixel_size,
.stripctrl_new = gtk_seat_stripctrl_new,
.set_trust_status = gtk_seat_set_trust_status,
.can_set_trust_status = gtk_seat_can_set_trust_status,
.has_mixed_input_stream = nullseat_has_mixed_input_stream_yes,
.verbose = nullseat_verbose_yes,
.interactive = nullseat_interactive_yes,
.get_cursor_position = gtk_seat_get_cursor_position,
};
static void gtk_eventlog(LogPolicy *lp, const char *string)
{
GtkFrontend *inst = container_of(lp, GtkFrontend, logpolicy);
logevent_dlg(inst->eventlogstuff, string);
}
static int gtk_askappend(LogPolicy *lp, Filename *filename,
void (*callback)(void *ctx, int result), void *ctx)
{
GtkFrontend *inst = container_of(lp, GtkFrontend, logpolicy);
return gtkdlg_askappend(&inst->seat, filename, callback, ctx);
}
static void gtk_logging_error(LogPolicy *lp, const char *event)
{
GtkFrontend *inst = container_of(lp, GtkFrontend, logpolicy);
/* Send 'can't open log file' errors to the terminal window.
* (Marked as stderr, although terminal.c won't care.) */
seat_stderr_pl(&inst->seat, ptrlen_from_asciz(event));
seat_stderr_pl(&inst->seat, PTRLEN_LITERAL("\r\n"));
}
static const LogPolicyVtable gtk_logpolicy_vt = {
.eventlog = gtk_eventlog,
.askappend = gtk_askappend,
.logging_error = gtk_logging_error,
.verbose = null_lp_verbose_yes,
};
/*
* Translate a raw mouse button designation (LEFT, MIDDLE, RIGHT)
* into a cooked one (SELECT, EXTEND, PASTE).
*
* In Unix, this is not configurable; the X button arrangement is
* rock-solid across all applications, everyone has a three-button
* mouse or a means of faking it, and there is no need to switch
* buttons around at all.
*/
static Mouse_Button translate_button(Mouse_Button button)
{
if (button == MBT_LEFT)
return MBT_SELECT;
if (button == MBT_MIDDLE)
return MBT_PASTE;
if (button == MBT_RIGHT)
return MBT_EXTEND;
if (button == MBT_NOTHING)
return MBT_NOTHING;
return 0; /* shouldn't happen */
}
/*
* Return the top-level GtkWindow associated with a particular
* front end instance.
*/
GtkWidget *gtk_seat_get_window(Seat *seat)
{
GtkFrontend *inst = container_of(seat, GtkFrontend, seat);
return inst->window;
}
/*
* Set and clear a pointer to a dialog box created as a result of the
* network code wanting to ask an asynchronous user question (e.g.
* 'what about this dodgy host key, then?').
*/
void register_dialog(Seat *seat, enum DialogSlot slot, GtkWidget *dialog)
{
GtkFrontend *inst;
assert(seat->vt == &gtk_seat_vt);
inst = container_of(seat, GtkFrontend, seat);
assert(slot < DIALOG_SLOT_LIMIT);
assert(!inst->dialogs[slot]);
inst->dialogs[slot] = dialog;
}
void unregister_dialog(Seat *seat, enum DialogSlot slot)
{
GtkFrontend *inst;
assert(seat->vt == &gtk_seat_vt);
inst = container_of(seat, GtkFrontend, seat);
assert(slot < DIALOG_SLOT_LIMIT);
assert(inst->dialogs[slot]);
inst->dialogs[slot] = NULL;
}
/*
* Minimise or restore the window in response to a server-side
* request.
*/
static void gtkwin_set_minimised(TermWin *tw, bool minimised)
{
/*
* GTK 1.2 doesn't know how to do this.
*/
#if GTK_CHECK_VERSION(2,0,0)
GtkFrontend *inst = container_of(tw, GtkFrontend, termwin);
if (minimised)
gtk_window_iconify(GTK_WINDOW(inst->window));
else
gtk_window_deiconify(GTK_WINDOW(inst->window));
#endif
}
/*
* Move the window in response to a server-side request.
*/
static void gtkwin_move(TermWin *tw, int x, int y)
{
GtkFrontend *inst = container_of(tw, GtkFrontend, termwin);
/*
* I assume that when the GTK version of this call is available
* we should use it. Not sure how it differs from the GDK one,
* though.
*/
#if GTK_CHECK_VERSION(2,0,0)
/* in case we reset this at startup due to a geometry string */
gtk_window_set_gravity(GTK_WINDOW(inst->window), GDK_GRAVITY_NORTH_EAST);
gtk_window_move(GTK_WINDOW(inst->window), x, y);
#else
gdk_window_move(gtk_widget_get_window(inst->window), x, y);
#endif
}
/*
* Move the window to the top or bottom of the z-order in response
* to a server-side request.
*/
static void gtkwin_set_zorder(TermWin *tw, bool top)
{
GtkFrontend *inst = container_of(tw, GtkFrontend, termwin);
if (top)
gdk_window_raise(gtk_widget_get_window(inst->window));
else
gdk_window_lower(gtk_widget_get_window(inst->window));
}
/*
* Refresh the window in response to a server-side request.
*/
static void gtkwin_refresh(TermWin *tw)
{
GtkFrontend *inst = container_of(tw, GtkFrontend, termwin);
term_invalidate(inst->term);
}
/*
* Maximise or restore the window in response to a server-side
* request.
*/
static void gtkwin_set_maximised(TermWin *tw, bool maximised)
{
/*
* GTK 1.2 doesn't know how to do this.
*/
#if GTK_CHECK_VERSION(2,0,0)
GtkFrontend *inst = container_of(tw, GtkFrontend, termwin);
if (maximised)
gtk_window_maximize(GTK_WINDOW(inst->window));
else
gtk_window_unmaximize(GTK_WINDOW(inst->window));
#endif
}
/*
* Find out whether a dialog box already exists for this window in a
* particular DialogSlot. If it does, uniconify it (if we can) and
* raise it, so that the user realises they've already been asked this
* question.
*/
static bool find_and_raise_dialog(GtkFrontend *inst, enum DialogSlot slot)
{
GtkWidget *dialog = inst->dialogs[slot];
if (!dialog)
return false;
#if GTK_CHECK_VERSION(2,0,0)
gtk_window_deiconify(GTK_WINDOW(dialog));
#endif
gdk_window_raise(gtk_widget_get_window(dialog));
return true;
}
static void warn_on_close_callback(void *vctx, int result)
{
GtkFrontend *inst = (GtkFrontend *)vctx;
unregister_dialog(&inst->seat, DIALOG_SLOT_WARN_ON_CLOSE);
if (result)
gtk_widget_destroy(inst->window);
}
/*
* Handle the 'delete window' event (e.g. user clicking the WM close
* button). The return value false means the window should close, and
* true means it shouldn't.
*
* (That's counterintuitive, but really, in GTK terms, true means 'I
* have done everything necessary to handle this event, so the default
* handler need not do anything', i.e. 'suppress default handler',
* i.e. 'do not close the window'.)
*/
gint delete_window(GtkWidget *widget, GdkEvent *event, GtkFrontend *inst)
{
if (!inst->exited && conf_get_bool(inst->conf, CONF_warn_on_close)) {
/*
* We're not going to exit right now. We must put up a
* warn-on-close dialog, unless one already exists, in which
* case we'll just re-emphasise that one.
*/
if (!find_and_raise_dialog(inst, DIALOG_SLOT_WARN_ON_CLOSE)) {
char *title = dupcat(appname, " Exit Confirmation");
char *msg, *additional = NULL;
if (inst->backend && inst->backend->vt->close_warn_text) {
additional = inst->backend->vt->close_warn_text(inst->backend);
}
msg = dupprintf("Are you sure you want to close this session?%s%s",
additional ? "\n" : "",
additional ? additional : "");
GtkWidget *dialog = create_message_box(
inst->window, title, msg,
string_width("Most of the width of the above text"),
false, &buttons_yn, warn_on_close_callback, inst);
register_dialog(&inst->seat, DIALOG_SLOT_WARN_ON_CLOSE, dialog);
sfree(title);
sfree(msg);
sfree(additional);
}
return true;
}
return false;
}
#if GTK_CHECK_VERSION(2,0,0)
static gboolean window_state_event(
GtkWidget *widget, GdkEventWindowState *event, gpointer user_data)
{
GtkFrontend *inst = (GtkFrontend *)user_data;
term_notify_minimised(
inst->term, event->new_window_state & GDK_WINDOW_STATE_ICONIFIED);
return false;
}
#endif
static void update_mouseptr(GtkFrontend *inst)
{
switch (inst->busy_status) {
case BUSY_NOT:
if (!inst->mouseptr_visible) {
gdk_window_set_cursor(gtk_widget_get_window(inst->area),
inst->blankcursor);
} else if (inst->pointer_indicates_raw_mouse) {
gdk_window_set_cursor(gtk_widget_get_window(inst->area),
inst->rawcursor);
} else {
gdk_window_set_cursor(gtk_widget_get_window(inst->area),
inst->textcursor);
}
break;
case BUSY_WAITING: /* XXX can we do better? */
case BUSY_CPU:
/* We always display these cursors. */
gdk_window_set_cursor(gtk_widget_get_window(inst->area),
inst->waitcursor);
break;
default:
unreachable("Bad busy_status");
}
}
static void show_mouseptr(GtkFrontend *inst, bool show)
{
if (!conf_get_bool(inst->conf, CONF_hide_mouseptr))
show = true;
inst->mouseptr_visible = show;
update_mouseptr(inst);
}
static void draw_backing_rect(GtkFrontend *inst);
static void drawing_area_setup(GtkFrontend *inst, int width, int height)
{
int w, h, new_scale;
/*
* See if the terminal size has changed.
*/
w = (width - 2*inst->window_border) / inst->font_width;
h = (height - 2*inst->window_border) / inst->font_height;
if (w != inst->width || h != inst->height) {
/*
* Update conf.
*/
inst->width = w;
inst->height = h;
conf_set_int(inst->conf, CONF_width, inst->width);
conf_set_int(inst->conf, CONF_height, inst->height);
/*
* We must refresh the window's backing image.
*/
inst->drawing_area_setup_needed = true;
}
#if GTK_CHECK_VERSION(3,10,0)
new_scale = gtk_widget_get_scale_factor(inst->area);
if (new_scale != inst->scale)
inst->drawing_area_setup_needed = true;
#else
new_scale = 1;
#endif
int new_backing_w = width * new_scale;
int new_backing_h = height * new_scale;
if (inst->backing_w != new_backing_w || inst->backing_h != new_backing_h)
inst->drawing_area_setup_needed = true;
/*
* GTK will sometimes send us configure events when nothing about
* the window size has actually changed. In some situations this
* can happen quite often, so it's a worthwhile optimisation to
* detect that situation and avoid the expensive reinitialisation
* of the backing surface / image, and so on.
*
* However, we must still communicate to the terminal that we
* received a resize event, because sometimes a trivial resize
* event (to the same size we already were) is a signal from the
* window system that a _nontrivial_ resize we recently asked for
* has failed to happen.
*/
inst->drawing_area_setup_called = true;
if (inst->term)
term_size(inst->term, h, w, conf_get_int(inst->conf, CONF_savelines));
if (inst->win_resize_pending) {
if (inst->term_resize_notification_required)
term_resize_request_completed(inst->term);
inst->win_resize_pending = false;
}
if (!inst->drawing_area_setup_needed)
return;
inst->drawing_area_setup_needed = false;
inst->scale = new_scale;
inst->backing_w = new_backing_w;
inst->backing_h = new_backing_h;
#ifndef NO_BACKING_PIXMAPS
if (inst->pixmap) {
gdk_pixmap_unref(inst->pixmap);
inst->pixmap = NULL;
}
inst->pixmap = gdk_pixmap_new(gtk_widget_get_window(inst->area),
inst->backing_w, inst->backing_h, -1);
#endif
#ifdef DRAW_TEXT_CAIRO
if (inst->surface) {
cairo_surface_destroy(inst->surface);
inst->surface = NULL;
}
inst->surface = cairo_image_surface_create(
CAIRO_FORMAT_ARGB32, inst->backing_w, inst->backing_h);
#endif
draw_backing_rect(inst);
if (inst->term)
term_invalidate(inst->term);
#if GTK_CHECK_VERSION(2,0,0)
gtk_im_context_set_client_window(
inst->imc, gtk_widget_get_window(inst->area));
#endif
}
static void drawing_area_setup_simple(GtkFrontend *inst)
{
/*
* Wrapper on drawing_area_setup which fetches the width and
* height of the drawing area. We go directly to the inner version
* in the case where a new size allocation comes in (just in case
* GTK hasn't installed it in the normal place yet).
*/
#if GTK_CHECK_VERSION(2,0,0)
GdkRectangle alloc;
gtk_widget_get_allocation(inst->area, &alloc);
#else
GtkAllocation alloc = inst->area->allocation;
#endif
drawing_area_setup(inst, alloc.width, alloc.height);
}
static void drawing_area_setup_cb(void *vctx)
{
GtkFrontend *inst = (GtkFrontend *)vctx;
if (!inst->drawing_area_setup_called)
drawing_area_setup_simple(inst);
}
static void area_realised(GtkWidget *widget, GtkFrontend *inst)
{
inst->drawing_area_realised = true;
if (inst->drawing_area_realised && inst->drawing_area_got_size &&
inst->drawing_area_setup_needed)
drawing_area_setup_simple(inst);
}
static void area_size_allocate(
GtkWidget *widget, GdkRectangle *alloc, GtkFrontend *inst)
{
inst->drawing_area_got_size = true;
if (inst->drawing_area_realised && inst->drawing_area_got_size)
drawing_area_setup(inst, alloc->width, alloc->height);
}
#if GTK_CHECK_VERSION(3,10,0)
static void area_check_scale(GtkFrontend *inst)
{
if (!inst->drawing_area_setup_needed &&
inst->scale != gtk_widget_get_scale_factor(inst->area)) {
drawing_area_setup_simple(inst);
if (inst->term) {
term_invalidate(inst->term);
term_update(inst->term);
}
}
}
#endif
static gboolean window_configured(
GtkWidget *widget, GdkEventConfigure *event, gpointer data)
{
GtkFrontend *inst = (GtkFrontend *)data;
if (inst->term) {
term_notify_window_pos(inst->term, event->x, event->y);
term_notify_window_size_pixels(
inst->term, event->width, event->height);
if (inst->drawing_area_realised && inst->drawing_area_got_size) {
inst->drawing_area_setup_called = false;
queue_toplevel_callback(drawing_area_setup_cb, inst);
}
}
return false;
}
#if GTK_CHECK_VERSION(3,10,0)
static gboolean area_configured(
GtkWidget *widget, GdkEventConfigure *event, gpointer data)
{
GtkFrontend *inst = (GtkFrontend *)data;
area_check_scale(inst);
return false;
}
#endif
#ifdef DRAW_TEXT_CAIRO
static void cairo_setup_draw_ctx(GtkFrontend *inst)
{
cairo_get_matrix(inst->uctx.u.cairo.cr,
&inst->uctx.u.cairo.origmatrix);
cairo_set_line_width(inst->uctx.u.cairo.cr, 1.0);
cairo_set_line_cap(inst->uctx.u.cairo.cr, CAIRO_LINE_CAP_SQUARE);
cairo_set_line_join(inst->uctx.u.cairo.cr, CAIRO_LINE_JOIN_MITER);
/* This antialiasing setting appears to be ignored for Pango
* font rendering but honoured for stroking and filling paths;
* I don't quite understand the logic of that, but I won't
* complain since it's exactly what I happen to want */
cairo_set_antialias(inst->uctx.u.cairo.cr, CAIRO_ANTIALIAS_NONE);
}
#endif
#if GTK_CHECK_VERSION(3,0,0)
static gint draw_area(GtkWidget *widget, cairo_t *cr, gpointer data)
{
GtkFrontend *inst = (GtkFrontend *)data;
#if GTK_CHECK_VERSION(3,10,0)
/*
* This may be the first we hear of the window scale having
* changed, in which case we must hastily reconstruct our backing
* surface before we copy the wrong one into the newly resized
* real window.
*/
area_check_scale(inst);
#endif
/*
* GTK3 window redraw: we always expect Cairo to be enabled, so
* that inst->surface exists, and pixmaps to be disabled, so that
* inst->pixmap does not exist. Hence, we just blit from
* inst->surface to the window.
*/
if (inst->surface) {
GdkRectangle dirtyrect;
cairo_surface_t *target_surface;
double orig_sx, orig_sy;
cairo_matrix_t m;
/*
* Furtle around in the Cairo setup to force the device scale
* back to 1, so that when we blit a collection of pixels from
* our backing surface into the window, they really are
* _pixels_ and not some confusing antialiased slightly-offset
* 2x2 rectangle of pixeloids.
*
* I have no idea whether GTK expects me not to mess with the
* device scale in the cairo_surface_t backing its window, so
* I carefully put it back when I've finished.
*
* In some GTK setups, the Cairo context we're given may not
* have a zero translation offset in its matrix, in which case
* we have to adjust that to compensate for the change of
* scale, or else the old translation offset (designed for the
* old scale) will be multiplied by the new scale instead and
* put everything in the wrong place.
*/
target_surface = cairo_get_target(cr);
cairo_get_matrix(cr, &m);
cairo_surface_get_device_scale(target_surface, &orig_sx, &orig_sy);
cairo_surface_set_device_scale(target_surface, 1.0, 1.0);
cairo_translate(cr, m.x0 * (orig_sx - 1.0), m.y0 * (orig_sy - 1.0));
gdk_cairo_get_clip_rectangle(cr, &dirtyrect);
cairo_set_source_surface(cr, inst->surface, 0, 0);
cairo_rectangle(cr, dirtyrect.x, dirtyrect.y,
dirtyrect.width, dirtyrect.height);
cairo_fill(cr);
cairo_surface_set_device_scale(target_surface, orig_sx, orig_sy);
}
return true;
}
#else
gint expose_area(GtkWidget *widget, GdkEventExpose *event, gpointer data)
{
GtkFrontend *inst = (GtkFrontend *)data;
#ifndef NO_BACKING_PIXMAPS
/*
* Draw to the exposed part of the window from the server-side
* backing pixmap.
*/
if (inst->pixmap) {
gdk_draw_pixmap(gtk_widget_get_window(widget),
(gtk_widget_get_style(widget)->fg_gc
[gtk_widget_get_state(widget)]),
inst->pixmap,
event->area.x, event->area.y,
event->area.x, event->area.y,
event->area.width, event->area.height);
}
#else
/*
* Failing that, draw from the client-side Cairo surface. (We
* should never be compiled in a context where we have _neither_
* inst->surface nor inst->pixmap.)
*/
if (inst->surface) {
cairo_t *cr = gdk_cairo_create(gtk_widget_get_window(widget));
cairo_set_source_surface(cr, inst->surface, 0, 0);
cairo_rectangle(cr, event->area.x, event->area.y,
event->area.width, event->area.height);
cairo_fill(cr);
cairo_destroy(cr);
}
#endif
return true;
}
#endif
#define KEY_PRESSED(k) \
(inst->keystate[(k) / 32] & (1 << ((k) % 32)))
#ifdef KEY_EVENT_DIAGNOSTICS
char *dup_keyval_name(guint keyval)
{
const char *name = gdk_keyval_name(keyval);
if (name)
return dupstr(name);
else
return dupprintf("UNKNOWN[%u]", (unsigned)keyval);
}
#endif
static void change_font_size(GtkFrontend *inst, int increment);
static void key_pressed(GtkFrontend *inst);
/* Subroutine used in key_event */
static int return_key(GtkFrontend *inst, char *output, bool *special)
{
int end;
/* Ugly label so we can come here as a fallback from
* numeric keypad Enter handling */
if (inst->term->cr_lf_return) {
#ifdef KEY_EVENT_DIAGNOSTICS
debug(" - Return in cr_lf_return mode, translating as 0d 0a\n");
#endif
output[1] = '\015';
output[2] = '\012';
end = 3;
} else {
#ifdef KEY_EVENT_DIAGNOSTICS
debug(" - Return special case, translating as 0d + special\n");
#endif
output[1] = '\015';
end = 2;
*special = true;
}
return end;
}
gint key_event(GtkWidget *widget, GdkEventKey *event, gpointer data)
{
GtkFrontend *inst = (GtkFrontend *)data;
char output[256];
wchar_t ucsoutput[2];
int ucsval, start, end, output_charset;
bool special, use_ucsoutput;
bool force_format_numeric_keypad = false;
bool generated_something = false;
char num_keypad_key = '\0';
const char *event_string = event->string ? event->string : "";
noise_ultralight(NOISE_SOURCE_KEY, event->keyval);
#ifdef OSX_META_KEY_CONFIG
if (event->state & inst->system_mod_mask)
return false; /* let GTK process OS X Command key */
#endif
/* Remember the timestamp. */
inst->input_event_time = event->time;
/* By default, nothing is generated. */
end = start = 0;
special = use_ucsoutput = false;
output_charset = CS_ISO8859_1;
#ifdef KEY_EVENT_DIAGNOSTICS
{
char *type_string, *state_string, *keyval_string, *string_string;
type_string = (event->type == GDK_KEY_PRESS ? dupstr("PRESS") :
event->type == GDK_KEY_RELEASE ? dupstr("RELEASE") :
dupprintf("UNKNOWN[%d]", (int)event->type));
{
static const struct {
int mod_bit;
const char *name;
} mod_bits[] = {
{GDK_SHIFT_MASK, "SHIFT"},
{GDK_LOCK_MASK, "LOCK"},
{GDK_CONTROL_MASK, "CONTROL"},
{GDK_MOD1_MASK, "MOD1"},
{GDK_MOD2_MASK, "MOD2"},
{GDK_MOD3_MASK, "MOD3"},
{GDK_MOD4_MASK, "MOD4"},
{GDK_MOD5_MASK, "MOD5"},
{GDK_SUPER_MASK, "SUPER"},
{GDK_HYPER_MASK, "HYPER"},
{GDK_META_MASK, "META"},
};
int i;
int val = event->state;
state_string = dupstr("");
for (i = 0; i < lenof(mod_bits); i++) {
if (val & mod_bits[i].mod_bit) {
char *old = state_string;
state_string = dupcat(state_string,
state_string[0] ? "|" : "",
mod_bits[i].name);
sfree(old);
val &= ~mod_bits[i].mod_bit;
}
}
if (val || !state_string[0]) {
char *old = state_string;
state_string = dupprintf("%s%s%d", state_string,
state_string[0] ? "|" : "", val);
sfree(old);
}
}
keyval_string = dup_keyval_name(event->keyval);
string_string = dupstr("");
{
int i;
for (i = 0; event_string[i]; i++) {
char *old = string_string;
string_string = dupprintf("%s%s%02x", string_string,
string_string[0] ? " " : "",
(unsigned)event_string[i] & 0xFF);
sfree(old);
}
}
debug("key_event: type=%s keyval=%s state=%s "
"hardware_keycode=%d is_modifier=%s string=[%s]\n",
type_string, keyval_string, state_string,
(int)event->hardware_keycode,
event->is_modifier ? "true" : "false",
string_string);
sfree(type_string);
sfree(state_string);
sfree(keyval_string);
sfree(string_string);
}
#endif /* KEY_EVENT_DIAGNOSTICS */
/*
* If Alt is being released after typing an Alt+numberpad
* sequence, we should generate the code that was typed.
*
* Note that we only do this if more than one key was actually
* pressed - I don't think Alt+NumPad4 should be ^D or that
* Alt+NumPad3 should be ^C, for example. There's no serious
* inconvenience in having to type a zero before a single-digit
* character code.
*/
if (event->type == GDK_KEY_RELEASE) {
if ((event->keyval == GDK_KEY_Meta_L ||
event->keyval == GDK_KEY_Meta_R ||
event->keyval == GDK_KEY_Alt_L ||
event->keyval == GDK_KEY_Alt_R) &&
inst->alt_keycode >= 0 && inst->alt_digits > 1) {
#ifdef KEY_EVENT_DIAGNOSTICS
debug(" - modifier release terminates Alt+numberpad input, "
"keycode = %d\n", inst->alt_keycode);
#endif
/*
* FIXME: we might usefully try to do something clever here
* about interpreting the generated key code in a way that's
* appropriate to the line code page.
*/
output[0] = inst->alt_keycode;
end = 1;
goto done;
}
#if GTK_CHECK_VERSION(2,0,0)
#ifdef KEY_EVENT_DIAGNOSTICS
debug(" - key release, passing to IM\n");
#endif
if (gtk_im_context_filter_keypress(inst->imc, event)) {
#ifdef KEY_EVENT_DIAGNOSTICS
debug(" - key release accepted by IM\n");
#endif
return true;
} else {
#ifdef KEY_EVENT_DIAGNOSTICS
debug(" - key release not accepted by IM\n");
#endif
}
#endif
}
if (event->type == GDK_KEY_PRESS) {
/*
* If Alt has just been pressed, we start potentially
* accumulating an Alt+numberpad code. We do this by
* setting alt_keycode to -1 (nothing yet but plausible).
*/
if ((event->keyval == GDK_KEY_Meta_L ||
event->keyval == GDK_KEY_Meta_R ||
event->keyval == GDK_KEY_Alt_L ||
event->keyval == GDK_KEY_Alt_R)) {
#ifdef KEY_EVENT_DIAGNOSTICS
debug(" - modifier press potentially begins Alt+numberpad "
"input\n");
#endif
inst->alt_keycode = -1;
inst->alt_digits = 0;
goto done; /* this generates nothing else */
}
/*
* If we're seeing a numberpad key press with Meta down,
* consider adding it to alt_keycode if that's sensible.
* Anything _else_ with Meta down cancels any possibility
* of an ALT keycode: we set alt_keycode to -2.
*/
if ((event->state & inst->meta_mod_mask) && inst->alt_keycode != -2) {
int digit = -1;
switch (event->keyval) {
case GDK_KEY_KP_0: case GDK_KEY_KP_Insert: digit = 0; break;
case GDK_KEY_KP_1: case GDK_KEY_KP_End: digit = 1; break;
case GDK_KEY_KP_2: case GDK_KEY_KP_Down: digit = 2; break;
case GDK_KEY_KP_3: case GDK_KEY_KP_Page_Down: digit = 3; break;
case GDK_KEY_KP_4: case GDK_KEY_KP_Left: digit = 4; break;
case GDK_KEY_KP_5: case GDK_KEY_KP_Begin: digit = 5; break;
case GDK_KEY_KP_6: case GDK_KEY_KP_Right: digit = 6; break;
case GDK_KEY_KP_7: case GDK_KEY_KP_Home: digit = 7; break;
case GDK_KEY_KP_8: case GDK_KEY_KP_Up: digit = 8; break;
case GDK_KEY_KP_9: case GDK_KEY_KP_Page_Up: digit = 9; break;
}
if (digit < 0)
inst->alt_keycode = -2; /* it's invalid */
else {
#if defined(DEBUG) && defined(KEY_EVENT_DIAGNOSTICS)
int old_keycode = inst->alt_keycode;
#endif
if (inst->alt_keycode == -1)
inst->alt_keycode = digit; /* one-digit code */
else
inst->alt_keycode = inst->alt_keycode * 10 + digit;
inst->alt_digits++;
#ifdef KEY_EVENT_DIAGNOSTICS
debug(" - Alt+numberpad digit %d added to keycode %d"
" gives %d\n", digit, old_keycode, inst->alt_keycode);
#endif
/* Having used this digit, we now do nothing more with it. */
goto done;
}
}
if (event->keyval == GDK_KEY_greater &&
(event->state & GDK_CONTROL_MASK)) {
#ifdef KEY_EVENT_DIAGNOSTICS
debug(" - Ctrl->: increase font size\n");
#endif
if (!inst->win_resize_pending)
change_font_size(inst, +1);
return true;
}
if (event->keyval == GDK_KEY_less &&
(event->state & GDK_CONTROL_MASK)) {
#ifdef KEY_EVENT_DIAGNOSTICS
debug(" - Ctrl-<: increase font size\n");
#endif
if (!inst->win_resize_pending)
change_font_size(inst, -1);
return true;
}
/*
* Shift-PgUp and Shift-PgDn don't even generate keystrokes
* at all.
*/
if (event->keyval == GDK_KEY_Page_Up &&
((event->state & (GDK_CONTROL_MASK | GDK_SHIFT_MASK)) ==
(GDK_CONTROL_MASK | GDK_SHIFT_MASK))) {
#ifdef KEY_EVENT_DIAGNOSTICS
debug(" - Ctrl-Shift-PgUp scroll\n");
#endif
term_scroll(inst->term, 1, 0);
return true;
}
if (event->keyval == GDK_KEY_Page_Up &&
(event->state & GDK_SHIFT_MASK)) {
#ifdef KEY_EVENT_DIAGNOSTICS
debug(" - Shift-PgUp scroll\n");
#endif
term_scroll(inst->term, 0, -inst->height/2);
return true;
}
if (event->keyval == GDK_KEY_Page_Up &&
(event->state & GDK_CONTROL_MASK)) {
#ifdef KEY_EVENT_DIAGNOSTICS
debug(" - Ctrl-PgUp scroll\n");
#endif
term_scroll(inst->term, 0, -1);
return true;
}
if (event->keyval == GDK_KEY_Page_Down &&
((event->state & (GDK_CONTROL_MASK | GDK_SHIFT_MASK)) ==
(GDK_CONTROL_MASK | GDK_SHIFT_MASK))) {
#ifdef KEY_EVENT_DIAGNOSTICS
debug(" - Ctrl-shift-PgDn scroll\n");
#endif
term_scroll(inst->term, -1, 0);
return true;
}
if (event->keyval == GDK_KEY_Page_Down &&
(event->state & GDK_SHIFT_MASK)) {
#ifdef KEY_EVENT_DIAGNOSTICS
debug(" - Shift-PgDn scroll\n");
#endif
term_scroll(inst->term, 0, +inst->height/2);
return true;
}
if (event->keyval == GDK_KEY_Page_Down &&
(event->state & GDK_CONTROL_MASK)) {
#ifdef KEY_EVENT_DIAGNOSTICS
debug(" - Ctrl-PgDn scroll\n");
#endif
term_scroll(inst->term, 0, +1);
return true;
}
/*
* Neither do Shift-Ins or Ctrl-Ins (if enabled).
*/
if (event->keyval == GDK_KEY_Insert &&
(event->state & GDK_SHIFT_MASK)) {
int cfgval = conf_get_int(inst->conf, CONF_ctrlshiftins);
switch (cfgval) {
case CLIPUI_IMPLICIT:
#ifdef KEY_EVENT_DIAGNOSTICS
debug(" - Shift-Insert: paste from PRIMARY\n");
#endif
term_request_paste(inst->term, CLIP_PRIMARY);
return true;
case CLIPUI_EXPLICIT:
#ifdef KEY_EVENT_DIAGNOSTICS
debug(" - Shift-Insert: paste from CLIPBOARD\n");
#endif
term_request_paste(inst->term, CLIP_CLIPBOARD);
return true;
case CLIPUI_CUSTOM:
#ifdef KEY_EVENT_DIAGNOSTICS
debug(" - Shift-Insert: paste from custom clipboard\n");
#endif
term_request_paste(inst->term, inst->clipboard_ctrlshiftins);
return true;
default:
#ifdef KEY_EVENT_DIAGNOSTICS
debug(" - Shift-Insert: no paste action\n");
#endif
break;
}
}
if (event->keyval == GDK_KEY_Insert &&
(event->state & GDK_CONTROL_MASK)) {
static const int clips_clipboard[] = { CLIP_CLIPBOARD };
int cfgval = conf_get_int(inst->conf, CONF_ctrlshiftins);
switch (cfgval) {
case CLIPUI_IMPLICIT:
/* do nothing; re-copy to PRIMARY is not needed */
#ifdef KEY_EVENT_DIAGNOSTICS
debug(" - Ctrl-Insert: non-copy to PRIMARY\n");
#endif
return true;
case CLIPUI_EXPLICIT:
#ifdef KEY_EVENT_DIAGNOSTICS
debug(" - Ctrl-Insert: copy to CLIPBOARD\n");
#endif
term_request_copy(inst->term,
clips_clipboard, lenof(clips_clipboard));
return true;
case CLIPUI_CUSTOM:
#ifdef KEY_EVENT_DIAGNOSTICS
debug(" - Ctrl-Insert: copy to custom clipboard\n");
#endif
term_request_copy(inst->term,
&inst->clipboard_ctrlshiftins, 1);
return true;
default:
#ifdef KEY_EVENT_DIAGNOSTICS
debug(" - Ctrl-Insert: no copy action\n");
#endif
break;
}
}
/*
* Another pair of copy-paste keys.
*/
if ((event->state & GDK_SHIFT_MASK) &&
(event->state & GDK_CONTROL_MASK) &&
(event->keyval == GDK_KEY_C || event->keyval == GDK_KEY_c ||
event->keyval == GDK_KEY_V || event->keyval == GDK_KEY_v)) {
int cfgval = conf_get_int(inst->conf, CONF_ctrlshiftcv);
bool paste = (event->keyval == GDK_KEY_V ||
event->keyval == GDK_KEY_v);
switch (cfgval) {
case CLIPUI_IMPLICIT:
if (paste) {
#ifdef KEY_EVENT_DIAGNOSTICS
debug(" - Ctrl-Shift-V: paste from PRIMARY\n");
#endif
term_request_paste(inst->term, CLIP_PRIMARY);
} else {
#ifdef KEY_EVENT_DIAGNOSTICS
debug(" - Ctrl-Shift-C: non-copy to PRIMARY\n");
#endif
}
return true;
case CLIPUI_EXPLICIT:
if (paste) {
#ifdef KEY_EVENT_DIAGNOSTICS
debug(" - Ctrl-Shift-V: paste from CLIPBOARD\n");
#endif
term_request_paste(inst->term, CLIP_CLIPBOARD);
} else {
static const int clips[] = { CLIP_CLIPBOARD };
#ifdef KEY_EVENT_DIAGNOSTICS
debug(" - Ctrl-Shift-C: copy to CLIPBOARD\n");
#endif
term_request_copy(inst->term, clips, lenof(clips));
}
return true;
case CLIPUI_CUSTOM:
if (paste) {
#ifdef KEY_EVENT_DIAGNOSTICS
debug(" - Ctrl-Shift-V: paste from custom clipboard\n");
#endif
term_request_paste(inst->term,
inst->clipboard_ctrlshiftcv);
} else {
#ifdef KEY_EVENT_DIAGNOSTICS
debug(" - Ctrl-Shift-C: copy to custom clipboard\n");
#endif
term_request_copy(inst->term,
&inst->clipboard_ctrlshiftcv, 1);
}
return true;
}
}
special = false;
use_ucsoutput = false;
/* ALT+things gives leading Escape. */
output[0] = '\033';
#if !GTK_CHECK_VERSION(2,0,0)
/*
* In vanilla X, and hence also GDK 1.2, the string received
* as part of a keyboard event is assumed to be in
* ISO-8859-1. (Seems woefully shortsighted in i18n terms,
* but it's true: see the man page for XLookupString(3) for
* confirmation.)
*/
output_charset = CS_ISO8859_1;
strncpy(output+1, event_string, lenof(output)-1);
#else /* !GTK_CHECK_VERSION(2,0,0) */
/*
* Most things can now be passed to
* gtk_im_context_filter_keypress without breaking anything
* below this point. An exception is the numeric keypad if
* we're in Nethack or application mode: the IM will eat
* numeric keypad presses if Num Lock is on, but we don't want
* it to.
*/
bool numeric = false;
bool nethack_mode = conf_get_bool(inst->conf, CONF_nethack_keypad);
bool app_keypad_mode = (inst->term->app_keypad_keys &&
!conf_get_bool(inst->conf, CONF_no_applic_k));
switch (event->keyval) {
case GDK_KEY_Num_Lock: num_keypad_key = 'G'; break;
case GDK_KEY_KP_Divide: num_keypad_key = '/'; break;
case GDK_KEY_KP_Multiply: num_keypad_key = '*'; break;
case GDK_KEY_KP_Subtract: num_keypad_key = '-'; break;
case GDK_KEY_KP_Add: num_keypad_key = '+'; break;
case GDK_KEY_KP_Enter: num_keypad_key = '\r'; break;
case GDK_KEY_KP_0: num_keypad_key = '0'; numeric = true; break;
case GDK_KEY_KP_Insert: num_keypad_key = '0'; break;
case GDK_KEY_KP_1: num_keypad_key = '1'; numeric = true; break;
case GDK_KEY_KP_End: num_keypad_key = '1'; break;
case GDK_KEY_KP_2: num_keypad_key = '2'; numeric = true; break;
case GDK_KEY_KP_Down: num_keypad_key = '2'; break;
case GDK_KEY_KP_3: num_keypad_key = '3'; numeric = true; break;
case GDK_KEY_KP_Page_Down: num_keypad_key = '3'; break;
case GDK_KEY_KP_4: num_keypad_key = '4'; numeric = true; break;
case GDK_KEY_KP_Left: num_keypad_key = '4'; break;
case GDK_KEY_KP_5: num_keypad_key = '5'; numeric = true; break;
case GDK_KEY_KP_Begin: num_keypad_key = '5'; break;
case GDK_KEY_KP_6: num_keypad_key = '6'; numeric = true; break;
case GDK_KEY_KP_Right: num_keypad_key = '6'; break;
case GDK_KEY_KP_7: num_keypad_key = '7'; numeric = true; break;
case GDK_KEY_KP_Home: num_keypad_key = '7'; break;
case GDK_KEY_KP_8: num_keypad_key = '8'; numeric = true; break;
case GDK_KEY_KP_Up: num_keypad_key = '8'; break;
case GDK_KEY_KP_9: num_keypad_key = '9'; numeric = true; break;
case GDK_KEY_KP_Page_Up: num_keypad_key = '9'; break;
case GDK_KEY_KP_Decimal: num_keypad_key = '.'; numeric = true; break;
case GDK_KEY_KP_Delete: num_keypad_key = '.'; break;
}
if ((app_keypad_mode && num_keypad_key &&
(numeric || inst->term->funky_type != FUNKY_XTERM)) ||
(nethack_mode && num_keypad_key >= '1' && num_keypad_key <= '9')) {
/* In these modes, we override the keypad handling:
* regardless of Num Lock, the keys are handled by
* format_numeric_keypad_key below. */
force_format_numeric_keypad = true;
} else {
bool try_filter = true;
#ifdef META_MANUAL_MASK
if (event->state & META_MANUAL_MASK & inst->meta_mod_mask) {
/*
* If this key event had a Meta modifier bit set which
* is also in META_MANUAL_MASK, that means passing
* such an event to the GtkIMContext will be unhelpful
* (it will eat the keystroke and turn it into
* something not what we wanted).
*/
#ifdef KEY_EVENT_DIAGNOSTICS
debug(" - Meta modifier requiring manual intervention, "
"suppressing IM filtering\n");
#endif
try_filter = false;
}
#endif
if (try_filter) {
#ifdef KEY_EVENT_DIAGNOSTICS
debug(" - general key press, passing to IM\n");
#endif
if (gtk_im_context_filter_keypress(inst->imc, event)) {
#ifdef KEY_EVENT_DIAGNOSTICS
debug(" - key press accepted by IM\n");
#endif
return true;
} else {
#ifdef KEY_EVENT_DIAGNOSTICS
debug(" - key press not accepted by IM\n");
#endif
}
}
}
/*
* GDK 2.0 arranges to have done some translation for us: in
* GDK 2.0, event->string is encoded in the current locale.
*
* So we use the standard C library function mbstowcs() to
* convert from the current locale into Unicode; from there
* we can convert to whatever PuTTY is currently working in.
* (In fact I convert straight back to UTF-8 from
* wide-character Unicode, for the sake of simplicity: that
* way we can still use exactly the same code to manipulate
* the string, such as prefixing ESC.)
*/
output_charset = CS_UTF8;
{
wchar_t widedata[32];
const wchar_t *wp;
int wlen;
int ulen;
buffer_sink bs[1];
buffer_sink_init(bs, widedata, sizeof(widedata) - sizeof(wchar_t));
put_mb_to_wc(bs, DEFAULT_CODEPAGE,
event_string, strlen(event_string));
wlen = (wchar_t *)bs->out - widedata;
#ifdef KEY_EVENT_DIAGNOSTICS
{
char *string_string = dupstr("");
int i;
for (i = 0; i < wlen; i++) {
char *old = string_string;
string_string = dupprintf("%s%s%04x", string_string,
string_string[0] ? " " : "",
(unsigned)widedata[i]);
sfree(old);
}
debug(" - string translated into Unicode = [%s]\n",
string_string);
sfree(string_string);
}
#endif
wp = widedata;
ulen = charset_from_unicode(&wp, &wlen, output+1, lenof(output)-2,
CS_UTF8, NULL, NULL, 0);
#ifdef KEY_EVENT_DIAGNOSTICS
{
char *string_string = dupstr("");
int i;
for (i = 0; i < ulen; i++) {
char *old = string_string;
string_string = dupprintf("%s%s%02x", string_string,
string_string[0] ? " " : "",
(unsigned)output[i+1] & 0xFF);
sfree(old);
}
debug(" - string translated into UTF-8 = [%s]\n",
string_string);
sfree(string_string);
}
#endif
output[1+ulen] = '\0';
}
#endif /* !GTK_CHECK_VERSION(2,0,0) */
if (!output[1] &&
(ucsval = keysym_to_unicode(event->keyval)) >= 0) {
ucsoutput[0] = '\033';
ucsoutput[1] = ucsval;
#ifdef KEY_EVENT_DIAGNOSTICS
debug(" - keysym_to_unicode gave %04x\n",
(unsigned)ucsoutput[1]);
#endif
use_ucsoutput = true;
end = 2;
} else {
output[lenof(output)-1] = '\0';
end = strlen(output);
}
if (event->state & inst->meta_mod_mask) {
start = 0;
if (end == 1) end = 0;
#ifdef META_MANUAL_MASK
if (event->state & META_MANUAL_MASK) {
/*
* Key events which have a META_MANUAL_MASK meta bit
* set may have a keyval reflecting that, e.g. on OS X
* the Option key acts as an AltGr-like modifier and
* causes different Unicode characters to be output.
*
* To work around this, we clear the dangerous
* modifier bit and retranslate from the hardware
* keycode as if the key had been pressed without that
* modifier. Then we prefix Esc to *that*.
*/
guint new_keyval;
GdkModifierType consumed;
if (gdk_keymap_translate_keyboard_state(
gdk_keymap_get_for_display(gdk_display_get_default()),
event->hardware_keycode,
event->state & ~META_MANUAL_MASK,
0, &new_keyval, NULL, NULL, &consumed)) {
ucsoutput[0] = '\033';
ucsoutput[1] = gdk_keyval_to_unicode(new_keyval);
#ifdef KEY_EVENT_DIAGNOSTICS
{
char *keyval_name = dup_keyval_name(new_keyval);
debug(" - retranslation for manual Meta: "
"new keyval = %s, Unicode = %04x\n",
keyval_name, (unsigned)ucsoutput[1]);
sfree(keyval_name);
}
#endif
use_ucsoutput = true;
end = 2;
}
}
#endif
} else
start = 1;
/* Control-` is the same as Control-\ (unless gtk has a better idea) */
if (!output[1] && event->keyval == '`' &&
(event->state & GDK_CONTROL_MASK)) {
#ifdef KEY_EVENT_DIAGNOSTICS
debug(" - Ctrl-` special case, translating as 1c\n");
#endif
output[1] = '\x1C';
use_ucsoutput = false;
end = 2;
}
/* Some GTK backends (e.g. Quartz) do not change event->string
* in response to the Control modifier. So we do it ourselves
* here, if it's not already happened.
*
* The translations below are in line with X11 policy as far
* as I know. */
if ((event->state & GDK_CONTROL_MASK) && end == 2) {
int orig = use_ucsoutput ? ucsoutput[1] : output[1];
int new = orig;
if (new >= '3' && new <= '7') {
/* ^3,...,^7 map to 0x1B,...,0x1F */
new += '\x1B' - '3';
} else if (new == '2' || new == ' ') {
/* ^2 and ^Space are both ^@, i.e. \0 */
new = '\0';
} else if (new == '8') {
/* ^8 is DEL */
new = '\x7F';
} else if (new == '/') {
/* ^/ is the same as ^_ */
new = '\x1F';
} else if (new >= 0x40 && new < 0x7F) {
/* Everything anywhere near the alphabetics just gets
* masked. */
new &= 0x1F;
}
/* Anything else, e.g. '0', is unchanged. */
if (orig == new) {
#ifdef KEY_EVENT_DIAGNOSTICS
debug(" - manual Ctrl key handling did nothing\n");
#endif
} else {
#ifdef KEY_EVENT_DIAGNOSTICS
debug(" - manual Ctrl key handling: %02x -> %02x\n",
(unsigned)orig, (unsigned)new);
#endif
output[1] = new;
use_ucsoutput = false;
}
}
/* Control-Break sends a Break special to the backend */
if (event->keyval == GDK_KEY_Break &&
(event->state & GDK_CONTROL_MASK)) {
#ifdef KEY_EVENT_DIAGNOSTICS
debug(" - Ctrl-Break special case, sending SS_BRK\n");
#endif
if (inst->backend)
backend_special(inst->backend, SS_BRK, 0);
return true;
}
/* We handle Return ourselves, because it needs to be flagged as
* special to ldisc. */
if (event->keyval == GDK_KEY_Return) {
end = return_key(inst, output, &special);
use_ucsoutput = false;
}
/* Control-2, Control-Space and Control-@ are NUL */
if (!output[1] &&
(event->keyval == ' ' || event->keyval == '2' ||
event->keyval == '@') &&
(event->state & (GDK_SHIFT_MASK |
GDK_CONTROL_MASK)) == GDK_CONTROL_MASK) {
#ifdef KEY_EVENT_DIAGNOSTICS
debug(" - Ctrl-{space,2,@} special case, translating as 00\n");
#endif
output[1] = '\0';
use_ucsoutput = false;
end = 2;
}
/* Control-Shift-Space is 160 (ISO8859 nonbreaking space) */
if (!output[1] && event->keyval == ' ' &&
(event->state & (GDK_SHIFT_MASK | GDK_CONTROL_MASK)) ==
(GDK_SHIFT_MASK | GDK_CONTROL_MASK)) {
#ifdef KEY_EVENT_DIAGNOSTICS
debug(" - Ctrl-Shift-space special case, translating as 00a0\n");
#endif
output[1] = '\240';
output_charset = CS_ISO8859_1;
use_ucsoutput = false;
end = 2;
}
/* We don't let GTK tell us what Backspace is! We know better. */
if (event->keyval == GDK_KEY_BackSpace &&
!(event->state & GDK_SHIFT_MASK)) {
output[1] = conf_get_bool(inst->conf, CONF_bksp_is_delete) ?
'\x7F' : '\x08';
#ifdef KEY_EVENT_DIAGNOSTICS
debug(" - Backspace, translating as %02x\n",
(unsigned)output[1]);
#endif
use_ucsoutput = false;
end = 2;
special = true;
}
/* For Shift Backspace, do opposite of what is configured. */
if (event->keyval == GDK_KEY_BackSpace &&
(event->state & GDK_SHIFT_MASK)) {
output[1] = conf_get_bool(inst->conf, CONF_bksp_is_delete) ?
'\x08' : '\x7F';
#ifdef KEY_EVENT_DIAGNOSTICS
debug(" - Shift-Backspace, translating as %02x\n",
(unsigned)output[1]);
#endif
use_ucsoutput = false;
end = 2;
special = true;
}
/* Shift-Tab is ESC [ Z */
if (event->keyval == GDK_KEY_ISO_Left_Tab ||
(event->keyval == GDK_KEY_Tab &&
(event->state & GDK_SHIFT_MASK))) {
#ifdef KEY_EVENT_DIAGNOSTICS
debug(" - Shift-Tab, translating as ESC [ Z\n");
#endif
end = 1 + sprintf(output+1, "\033[Z");
use_ucsoutput = false;
}
/* And normal Tab is Tab, if the keymap hasn't already told us.
* (Curiously, at least one version of the MacOS 10.5 X server
* doesn't translate Tab for us. */
if (event->keyval == GDK_KEY_Tab && end <= 1) {
#ifdef KEY_EVENT_DIAGNOSTICS
debug(" - Tab, translating as 09\n");
#endif
output[1] = '\t';
end = 2;
}
if (num_keypad_key && force_format_numeric_keypad) {
end = 1 + format_numeric_keypad_key(
output+1, inst->term, num_keypad_key,
event->state & GDK_SHIFT_MASK,
event->state & GDK_CONTROL_MASK);
#ifdef KEY_EVENT_DIAGNOSTICS
debug(" - numeric keypad key");
#endif
use_ucsoutput = false;
goto done;
}
switch (event->keyval) {
int fkey_number;
bool consumed_meta_key;
case GDK_KEY_F1: fkey_number = 1; goto numbered_function_key;
case GDK_KEY_F2: fkey_number = 2; goto numbered_function_key;
case GDK_KEY_F3: fkey_number = 3; goto numbered_function_key;
case GDK_KEY_F4: fkey_number = 4; goto numbered_function_key;
case GDK_KEY_F5: fkey_number = 5; goto numbered_function_key;
case GDK_KEY_F6: fkey_number = 6; goto numbered_function_key;
case GDK_KEY_F7: fkey_number = 7; goto numbered_function_key;
case GDK_KEY_F8: fkey_number = 8; goto numbered_function_key;
case GDK_KEY_F9: fkey_number = 9; goto numbered_function_key;
case GDK_KEY_F10: fkey_number = 10; goto numbered_function_key;
case GDK_KEY_F11: fkey_number = 11; goto numbered_function_key;
case GDK_KEY_F12: fkey_number = 12; goto numbered_function_key;
case GDK_KEY_F13: fkey_number = 13; goto numbered_function_key;
case GDK_KEY_F14: fkey_number = 14; goto numbered_function_key;
case GDK_KEY_F15: fkey_number = 15; goto numbered_function_key;
case GDK_KEY_F16: fkey_number = 16; goto numbered_function_key;
case GDK_KEY_F17: fkey_number = 17; goto numbered_function_key;
case GDK_KEY_F18: fkey_number = 18; goto numbered_function_key;
case GDK_KEY_F19: fkey_number = 19; goto numbered_function_key;
case GDK_KEY_F20: fkey_number = 20; goto numbered_function_key;
numbered_function_key:
consumed_meta_key = false;
end = 1 + format_function_key(output+1, inst->term, fkey_number,
event->state & GDK_SHIFT_MASK,
event->state & GDK_CONTROL_MASK,
event->state & inst->meta_mod_mask,
&consumed_meta_key);
if (consumed_meta_key)
start = 1; /* supersedes the usual prefixing of Esc */
#ifdef KEY_EVENT_DIAGNOSTICS
debug(" - function key F%d", fkey_number);
#endif
use_ucsoutput = false;
goto done;
SmallKeypadKey sk_key;
case GDK_KEY_Home: case GDK_KEY_KP_Home:
sk_key = SKK_HOME; goto small_keypad_key;
case GDK_KEY_Insert: case GDK_KEY_KP_Insert:
sk_key = SKK_INSERT; goto small_keypad_key;
case GDK_KEY_Delete: case GDK_KEY_KP_Delete:
sk_key = SKK_DELETE; goto small_keypad_key;
case GDK_KEY_End: case GDK_KEY_KP_End:
sk_key = SKK_END; goto small_keypad_key;
case GDK_KEY_Page_Up: case GDK_KEY_KP_Page_Up:
sk_key = SKK_PGUP; goto small_keypad_key;
case GDK_KEY_Page_Down: case GDK_KEY_KP_Page_Down:
sk_key = SKK_PGDN; goto small_keypad_key;
small_keypad_key:
/* These keys don't generate terminal input with Ctrl */
if (event->state & GDK_CONTROL_MASK)
break;
consumed_meta_key = false;
end = 1 + format_small_keypad_key(
output+1, inst->term, sk_key, event->state & GDK_SHIFT_MASK,
event->state & GDK_CONTROL_MASK,
event->state & inst->meta_mod_mask, &consumed_meta_key);
if (consumed_meta_key)
start = 1; /* supersedes the usual prefixing of Esc */
#ifdef KEY_EVENT_DIAGNOSTICS
debug(" - small keypad key");
#endif
use_ucsoutput = false;
goto done;
int xkey;
case GDK_KEY_Up: case GDK_KEY_KP_Up:
xkey = 'A'; goto arrow_key;
case GDK_KEY_Down: case GDK_KEY_KP_Down:
xkey = 'B'; goto arrow_key;
case GDK_KEY_Right: case GDK_KEY_KP_Right:
xkey = 'C'; goto arrow_key;
case GDK_KEY_Left: case GDK_KEY_KP_Left:
xkey = 'D'; goto arrow_key;
case GDK_KEY_Begin: case GDK_KEY_KP_Begin:
xkey = 'G'; goto arrow_key;
arrow_key:
consumed_meta_key = false;
end = 1 + format_arrow_key(
output+1, inst->term, xkey, event->state & GDK_SHIFT_MASK,
event->state & GDK_CONTROL_MASK,
event->state & inst->meta_mod_mask, &consumed_meta_key);
if (consumed_meta_key)
start = 1; /* supersedes the usual prefixing of Esc */
#ifdef KEY_EVENT_DIAGNOSTICS
debug(" - arrow key");
#endif
use_ucsoutput = false;
goto done;
}
if (num_keypad_key) {
end = 1 + format_numeric_keypad_key(
output+1, inst->term, num_keypad_key,
event->state & GDK_SHIFT_MASK,
event->state & GDK_CONTROL_MASK);
#ifdef KEY_EVENT_DIAGNOSTICS
debug(" - numeric keypad key");
#endif
if (end == 1 && num_keypad_key == '\r') {
/* Keypad Enter, lacking any other translation,
* becomes the same special Return code as normal
* Return. */
end = return_key(inst, output, &special);
use_ucsoutput = false;
}
use_ucsoutput = false;
goto done;
}
goto done;
}
done:
if (end-start > 0) {
if (special) {
#ifdef KEY_EVENT_DIAGNOSTICS
char *string_string = dupstr("");
int i;
for (i = start; i < end; i++) {
char *old = string_string;
string_string = dupprintf("%s%s%02x", string_string,
string_string[0] ? " " : "",
(unsigned)output[i] & 0xFF);
sfree(old);
}
debug(" - final output, special, generic encoding = [%s]\n",
string_string);
sfree(string_string);
#endif
/*
* For special control characters, the character set
* should never matter.
*/
output[end] = '\0'; /* NUL-terminate */
generated_something = true;
term_keyinput(inst->term, -1, output+start, -2);
} else if (!inst->direct_to_font) {
if (!use_ucsoutput) {
#ifdef KEY_EVENT_DIAGNOSTICS
char *string_string = dupstr("");
int i;
for (i = start; i < end; i++) {
char *old = string_string;
string_string = dupprintf("%s%s%02x", string_string,
string_string[0] ? " " : "",
(unsigned)output[i] & 0xFF);
sfree(old);
}
debug(" - final output in %s = [%s]\n",
charset_to_localenc(output_charset), string_string);
sfree(string_string);
#endif
generated_something = true;
term_keyinput(inst->term, output_charset,
output+start, end-start);
} else {
#ifdef KEY_EVENT_DIAGNOSTICS
char *string_string = dupstr("");
int i;
for (i = start; i < end; i++) {
char *old = string_string;
string_string = dupprintf("%s%s%04x", string_string,
string_string[0] ? " " : "",
(unsigned)ucsoutput[i]);
sfree(old);
}
debug(" - final output in Unicode = [%s]\n",
string_string);
sfree(string_string);
#endif
/*
* We generated our own Unicode key data from the
* keysym, so use that instead.
*/
generated_something = true;
term_keyinputw(inst->term, ucsoutput+start, end-start);
}
} else {
/*
* In direct-to-font mode, we just send the string
* exactly as we received it.
*/
#ifdef KEY_EVENT_DIAGNOSTICS
char *string_string = dupstr("");
int i;
for (i = start; i < end; i++) {
char *old = string_string;
string_string = dupprintf("%s%s%02x", string_string,
string_string[0] ? " " : "",
(unsigned)output[i] & 0xFF);
sfree(old);
}
debug(" - final output in direct-to-font encoding = [%s]\n",
string_string);
sfree(string_string);
#endif
generated_something = true;
term_keyinput(inst->term, -1, output+start, end-start);
}
show_mouseptr(inst, false);
}
if (generated_something)
key_pressed(inst);
return true;
}
#if GTK_CHECK_VERSION(2,0,0)
void input_method_commit_event(GtkIMContext *imc, gchar *str, gpointer data)
{
GtkFrontend *inst = (GtkFrontend *)data;
#ifdef KEY_EVENT_DIAGNOSTICS
char *string_string = dupstr("");
int i;
for (i = 0; str[i]; i++) {
char *old = string_string;
string_string = dupprintf("%s%s%02x", string_string,
string_string[0] ? " " : "",
(unsigned)str[i] & 0xFF);
sfree(old);
}
debug(" - IM commit event in UTF-8 = [%s]\n", string_string);
sfree(string_string);
#endif
term_keyinput(inst->term, CS_UTF8, str, strlen(str));
show_mouseptr(inst, false);
key_pressed(inst);
}
#endif
#define SCROLL_INCREMENT_LINES 5
#if GTK_CHECK_VERSION(3,4,0)
gboolean scroll_internal(GtkFrontend *inst, gdouble xdelta, gdouble ydelta,
guint state, gdouble ex, gdouble ey)
{
int x, y;
bool shift, ctrl, alt, raw_mouse_mode;
show_mouseptr(inst, true);
shift = state & GDK_SHIFT_MASK;
ctrl = state & GDK_CONTROL_MASK;
alt = state & inst->meta_mod_mask;
x = (ex - inst->window_border) / inst->font_width;
y = (ey - inst->window_border) / inst->font_height;
raw_mouse_mode = (inst->send_raw_mouse &&
!(shift && conf_get_bool(inst->conf,
CONF_mouse_override)));
inst->cumulative_vscroll += ydelta * SCROLL_INCREMENT_LINES;
if (!raw_mouse_mode) {
int scroll_lines = (int)inst->cumulative_vscroll; /* rounds toward 0 */
if (scroll_lines) {
term_scroll(inst->term, 0, scroll_lines);
inst->cumulative_vscroll -= scroll_lines;
}
return true;
} else {
int scroll_events = (int)(inst->cumulative_vscroll /
SCROLL_INCREMENT_LINES);
if (scroll_events) {
int button;
inst->cumulative_vscroll -= scroll_events * SCROLL_INCREMENT_LINES;
if (scroll_events > 0) {
button = MBT_WHEEL_DOWN;
} else {
button = MBT_WHEEL_UP;
scroll_events = -scroll_events;
}
while (scroll_events-- > 0) {
term_mouse(inst->term, button, translate_button(button),
MA_CLICK, x, y, shift, ctrl, alt);
}
}
/*
* Now do the same for horizontal scrolling. But because we
* _only_ use that for passing through to mouse reporting, we
* don't even collect the scroll deltas while not in
* raw_mouse_mode. (Otherwise there would likely be a huge
* unexpected lurch when raw_mouse_mode was enabled!)
*/
inst->cumulative_hscroll += xdelta * SCROLL_INCREMENT_LINES;
scroll_events = (int)(inst->cumulative_hscroll /
SCROLL_INCREMENT_LINES);
if (scroll_events) {
int button;
inst->cumulative_hscroll -= scroll_events * SCROLL_INCREMENT_LINES;
if (scroll_events > 0) {
button = MBT_WHEEL_RIGHT;
} else {
button = MBT_WHEEL_LEFT;
scroll_events = -scroll_events;
}
while (scroll_events-- > 0) {
term_mouse(inst->term, button, translate_button(button),
MA_CLICK, x, y, shift, ctrl, alt);
}
}
return true;
}
}
#endif
static gboolean button_internal(GtkFrontend *inst, GdkEventButton *event)
{
bool shift, ctrl, alt, raw_mouse_mode;
int x, y, button, act;
/* Remember the timestamp. */
inst->input_event_time = event->time;
noise_ultralight(NOISE_SOURCE_MOUSEBUTTON, event->button);
show_mouseptr(inst, true);
shift = event->state & GDK_SHIFT_MASK;
ctrl = event->state & GDK_CONTROL_MASK;
alt = event->state & inst->meta_mod_mask;
raw_mouse_mode = (inst->send_raw_mouse &&
!(shift && conf_get_bool(inst->conf,
CONF_mouse_override)));
if (!raw_mouse_mode) {
if (event->button == 4 && event->type == GDK_BUTTON_PRESS) {
term_scroll(inst->term, 0, -SCROLL_INCREMENT_LINES);
return true;
}
if (event->button == 5 && event->type == GDK_BUTTON_PRESS) {
term_scroll(inst->term, 0, +SCROLL_INCREMENT_LINES);
return true;
}
}
if (event->button == 3 && ctrl) {
/* Just in case this happened in mid-select */
term_cancel_selection_drag(inst->term);
#if GTK_CHECK_VERSION(3,22,0)
gtk_menu_popup_at_pointer(GTK_MENU(inst->menu), (GdkEvent *)event);
#else
gtk_menu_popup(GTK_MENU(inst->menu), NULL, NULL, NULL, NULL,
event->button, event->time);
#endif
return true;
}
if (event->button == 1)
button = MBT_LEFT;
else if (event->button == 2)
button = MBT_MIDDLE;
else if (event->button == 3)
button = MBT_RIGHT;
else if (event->button == 4)
button = MBT_WHEEL_UP;
else if (event->button == 5)
button = MBT_WHEEL_DOWN;
else
return false; /* don't even know what button! */
switch (event->type) {
case GDK_BUTTON_PRESS: act = MA_CLICK; break;
case GDK_BUTTON_RELEASE: act = MA_RELEASE; break;
case GDK_2BUTTON_PRESS: act = MA_2CLK; break;
case GDK_3BUTTON_PRESS: act = MA_3CLK; break;
default: return false; /* don't know this event type */
}
if (raw_mouse_mode && act != MA_CLICK && act != MA_RELEASE)
return true; /* we ignore these in raw mouse mode */
x = (event->x - inst->window_border) / inst->font_width;
y = (event->y - inst->window_border) / inst->font_height;
term_mouse(inst->term, button, translate_button(button), act,
x, y, shift, ctrl, alt);
return true;
}
gboolean button_event(GtkWidget *widget, GdkEventButton *event, gpointer data)
{
GtkFrontend *inst = (GtkFrontend *)data;
return button_internal(inst, event);
}
#if GTK_CHECK_VERSION(2,0,0)
/*
* In GTK 2, mouse wheel events have become a new type of event.
* This handler translates them back into button-4 and button-5
* presses so that I don't have to change my old code too much :-)
*/
gboolean scroll_event(GtkWidget *widget, GdkEventScroll *event, gpointer data)
{
GtkFrontend *inst = (GtkFrontend *)data;
GdkScrollDirection dir;
#if GTK_CHECK_VERSION(3,4,0)
gdouble dx, dy;
if (gdk_event_get_scroll_deltas((GdkEvent *)event, &dx, &dy)) {
return scroll_internal(inst, dx, dy, event->state, event->x, event->y);
} else if (!gdk_event_get_scroll_direction((GdkEvent *)event, &dir)) {
return false;
}
#else
dir = event->direction;
#endif
guint button;
GdkEventButton *event_button;
gboolean ret;
if (dir == GDK_SCROLL_UP)
button = 4;
else if (dir == GDK_SCROLL_DOWN)
button = 5;
else
return false;
event_button = (GdkEventButton *)gdk_event_new(GDK_BUTTON_PRESS);
event_button->window = g_object_ref(event->window);
event_button->send_event = event->send_event;
event_button->time = event->time;
event_button->x = event->x;
event_button->y = event->y;
event_button->axes = NULL;
event_button->state = event->state;
event_button->button = button;
event_button->device = g_object_ref(event->device);
event_button->x_root = event->x_root;
event_button->y_root = event->y_root;
ret = button_internal(inst, event_button);
gdk_event_free((GdkEvent *)event_button);
return ret;
}
#endif
gint motion_event(GtkWidget *widget, GdkEventMotion *event, gpointer data)
{
GtkFrontend *inst = (GtkFrontend *)data;
bool shift, ctrl, alt;
Mouse_Action action = MA_DRAG;
Mouse_Button button = MBT_NOTHING;
int x, y;
/* Remember the timestamp. */
inst->input_event_time = event->time;
noise_ultralight(NOISE_SOURCE_MOUSEPOS,
((uint32_t)event->x << 16) | (uint32_t)event->y);
show_mouseptr(inst, true);
shift = event->state & GDK_SHIFT_MASK;
ctrl = event->state & GDK_CONTROL_MASK;
alt = event->state & inst->meta_mod_mask;
if (event->state & GDK_BUTTON1_MASK)
button = MBT_LEFT;
else if (event->state & GDK_BUTTON2_MASK)
button = MBT_MIDDLE;
else if (event->state & GDK_BUTTON3_MASK)
button = MBT_RIGHT;
else
action = MA_MOVE;
x = (event->x - inst->window_border) / inst->font_width;
y = (event->y - inst->window_border) / inst->font_height;
term_mouse(inst->term, button, translate_button(button), action,
x, y, shift, ctrl, alt);
return true;
}
static void key_pressed(GtkFrontend *inst)
{
/*
* If our child process has exited but not closed, terminate on
* any keypress.
*
* This is a UI feature specific to GTK PuTTY, because GTK PuTTY
* will (at least sometimes) be running under X, and under X the
* window manager is sometimes absent (very occasionally on
* purpose, more usually temporarily because it's crashed). So
* it's useful to have a way to close an application window
* without depending on protocols like WM_DELETE_WINDOW that are
* typically generated by the WM (e.g. in response to a close
* button in the window frame).
*/
if (inst->exited)
gtk_widget_destroy(inst->window);
}
static void exit_callback(void *vctx)
{
GtkFrontend *inst = (GtkFrontend *)vctx;
int exitcode, close_on_exit;
if (!inst->exited &&
(exitcode = backend_exitcode(inst->backend)) >= 0) {
destroy_inst_connection(inst);
close_on_exit = conf_get_int(inst->conf, CONF_close_on_exit);
if (close_on_exit == FORCE_ON ||
(close_on_exit == AUTO && exitcode == 0)) {
gtk_widget_destroy(inst->window);
}
}
}
static void gtk_seat_notify_remote_exit(Seat *seat)
{
GtkFrontend *inst = container_of(seat, GtkFrontend, seat);
queue_toplevel_callback(exit_callback, inst);
}
static void destroy_inst_connection(GtkFrontend *inst)
{
inst->exited = true;
if (inst->ldisc) {
ldisc_free(inst->ldisc);
inst->ldisc = NULL;
}
if (inst->backend) {
backend_free(inst->backend);
inst->backend = NULL;
}
if (inst->term)
term_provide_backend(inst->term, NULL);
if (inst->menu) {
seat_update_specials_menu(&inst->seat);
gtk_widget_set_sensitive(inst->restartitem, true);
}
}
static void delete_inst(GtkFrontend *inst)
{
int dialog_slot;
for (dialog_slot = 0; dialog_slot < DIALOG_SLOT_LIMIT; dialog_slot++) {
if (inst->dialogs[dialog_slot]) {
gtk_widget_destroy(inst->dialogs[dialog_slot]);
inst->dialogs[dialog_slot] = NULL;
}
}
if (inst->window) {
gtk_widget_destroy(inst->window);
inst->window = NULL;
}
if (inst->menu) {
gtk_widget_destroy(inst->menu);
inst->menu = NULL;
}
destroy_inst_connection(inst);
if (inst->term) {
term_free(inst->term);
inst->term = NULL;
}
if (inst->conf) {
conf_free(inst->conf);
inst->conf = NULL;
}
if (inst->logctx) {
log_free(inst->logctx);
inst->logctx = NULL;
}
#if GTK_CHECK_VERSION(2,0,0)
if (inst->trust_sigil_pb) {
g_object_unref(G_OBJECT(inst->trust_sigil_pb));
inst->trust_sigil_pb = NULL;
}
#else
if (inst->trust_sigil_pm) {
gdk_pixmap_unref(inst->trust_sigil_pm);
inst->trust_sigil_pm = NULL;
}
#endif
#ifdef JUST_USE_GTK_CLIPBOARD_UTF8
/*
* Clear up any in-flight clipboard_data_instances. We can't
* actually _free_ them, but we detach them from the inst that's
* about to be destroyed.
*/
while (inst->cdi_headtail.next != &inst->cdi_headtail) {
struct clipboard_data_instance *cdi = inst->cdi_headtail.next;
cdi->state = NULL;
cdi->next->prev = cdi->prev;
cdi->prev->next = cdi->next;
cdi->next = cdi->prev = cdi;
}
#endif
/*
* Delete any top-level callbacks associated with inst, which
* would otherwise become stale-pointer dereferences waiting to
* happen. We do this last, because some of the above cleanups
* (notably shutting down the backend) might themelves queue such
* callbacks, so we need to make sure they don't do that _after_
* we're supposed to have cleaned everything up.
*/
delete_callbacks_for_context(inst);
eventlogstuff_free(inst->eventlogstuff);
sfree(inst);
}
void destroy(GtkWidget *widget, gpointer data)
{
GtkFrontend *inst = (GtkFrontend *)data;
inst->window = NULL;
delete_inst(inst);
session_window_closed();
}
gint focus_event(GtkWidget *widget, GdkEventFocus *event, gpointer data)
{
GtkFrontend *inst = (GtkFrontend *)data;
term_set_focus(inst->term, event->in);
term_update(inst->term);
show_mouseptr(inst, true);
return false;
}
static void gtk_seat_set_busy_status(Seat *seat, BusyStatus status)
{
GtkFrontend *inst = container_of(seat, GtkFrontend, seat);
inst->busy_status = status;
update_mouseptr(inst);
}
static void gtkwin_set_raw_mouse_mode(TermWin *tw, bool activate)
{
GtkFrontend *inst = container_of(tw, GtkFrontend, termwin);
inst->send_raw_mouse = activate;
}
static void gtkwin_set_raw_mouse_mode_pointer(TermWin *tw, bool activate)
{
GtkFrontend *inst = container_of(tw, GtkFrontend, termwin);
inst->pointer_indicates_raw_mouse = activate;
update_mouseptr(inst);
}
#if GTK_CHECK_VERSION(2,0,0)
static void compute_whole_window_size(GtkFrontend *inst,
int wchars, int hchars,
int *wpix, int *hpix);
static void gtkwin_deny_term_resize(void *vctx)
{
GtkFrontend *inst = (GtkFrontend *)vctx;
drawing_area_setup_simple(inst);
}
#endif
static void gtkwin_timer(void *vctx, unsigned long now)
{
GtkFrontend *inst = (GtkFrontend *)vctx;
if (inst->win_resize_pending && now == inst->win_resize_timeout) {
if (inst->term_resize_notification_required)
term_resize_request_completed(inst->term);
inst->win_resize_pending = false;
}
}
static void request_resize_internal(GtkFrontend *inst, bool from_terminal,
int w, int h)
{
#if GTK_CHECK_VERSION(2,0,0)
/*
* Initial check: don't even try to resize a window if it's in one
* of the states that make that impossible. This includes being
* maximised; being full-screen (if we ever implement that); or
* being in various tiled states.
*
* On X11, the effect of trying to resize the window when it can't
* be resized should be that the window manager sends us a
* synthetic ConfigureNotify event restating our existing size
* (ICCCM section 4.1.5 "Configuring the Window"). That's awkward
* to deal with, but not impossible; so for X11 alone, we might
* not bother with this check.
*
* (In any case, X11 has other reasons why a window resize might
* be rejected, which this enumeration can't be aware of in any
* case. For example, if your window manager is a tiling one, then
* all your windows are _de facto_ tiled, but not _de jure_ in a
* way that GDK will know about. So we have to handle those
* synthetic ConfigureNotifies in any case.)
*
* On Wayland, as of GTK 3.24.20, the effects are much worse: it
* looks to me as if GTK stops ever sending us "draw" events, or
* even a size_allocate, so the display locks up completely until
* you toggle the maximised state of the window by some other
* means. So it's worth checking!
*/
GdkWindow *gdkwin = gtk_widget_get_window(inst->window);
if (gdkwin) {
GdkWindowState state = gdk_window_get_state(gdkwin);
if (state & (GDK_WINDOW_STATE_MAXIMIZED |
GDK_WINDOW_STATE_FULLSCREEN |
#if GTK_CHECK_VERSION(3,10,0)
GDK_WINDOW_STATE_TILED |
#endif
#if GTK_CHECK_VERSION(3,22,23)
GDK_WINDOW_STATE_TOP_TILED |
GDK_WINDOW_STATE_RIGHT_TILED |
GDK_WINDOW_STATE_BOTTOM_TILED |
GDK_WINDOW_STATE_LEFT_TILED |
#endif
0)) {
queue_toplevel_callback(gtkwin_deny_term_resize, inst);
if (from_terminal)
term_resize_request_completed(inst->term);
return;
}
}
#endif
#if !GTK_CHECK_VERSION(3,0,0)
int large_x, large_y;
int offset_x, offset_y;
int area_x, area_y;
GtkRequisition inner, outer;
/*
* This is a heinous hack dreamed up by the gnome-terminal
* people to get around a limitation in gtk. The problem is
* that in order to set the size correctly we really need to be
* calling gtk_window_resize - but that needs to know the size
* of the _whole window_, not the drawing area. So what we do
* is to set an artificially huge size request on the drawing
* area, recompute the resulting size request on the window,
* and look at the difference between the two. That gives us
* the x and y offsets we need to translate drawing area size
* into window size for real, and then we call
* gtk_window_resize.
*/
/*
* We start by retrieving the current size of the whole window.
* Adding a bit to _that_ will give us a value we can use as a
* bogus size request which guarantees to be bigger than the
* current size of the drawing area.
*/
get_window_pixel_size(inst, &large_x, &large_y);
large_x += 32;
large_y += 32;
gtk_widget_set_size_request(inst->area, large_x, large_y);
gtk_widget_size_request(inst->area, &inner);
gtk_widget_size_request(inst->window, &outer);
offset_x = outer.width - inner.width;
offset_y = outer.height - inner.height;
area_x = inst->font_width * w + 2*inst->window_border;
area_y = inst->font_height * h + 2*inst->window_border;
/*
* Now we must set the size request on the drawing area back to
* something sensible before we commit the real resize. Best
* way to do this, I think, is to set it to what the size is
* really going to end up being.
*/
gtk_widget_set_size_request(inst->area, area_x, area_y);
#if GTK_CHECK_VERSION(2,0,0)
gtk_window_resize(GTK_WINDOW(inst->window),
area_x + offset_x, area_y + offset_y);
#else
gtk_drawing_area_size(GTK_DRAWING_AREA(inst->area), area_x, area_y);
/*
* I can no longer remember what this call to
* gtk_container_dequeue_resize_handler is for. It was
* introduced in r3092 with no comment, and the commit log
* message was uninformative. I'm _guessing_ its purpose is to
* prevent gratuitous resize processing on the window given
* that we're about to resize it anyway, but I have no idea
* why that's so incredibly vital.
*
* I've tried removing the call, and nothing seems to go
* wrong. I've backtracked to r3092 and tried removing the
* call there, and still nothing goes wrong. So I'm going to
* adopt the working hypothesis that it's superfluous; I won't
* actually remove it from the GTK 1.2 code, but I won't
* attempt to replicate its functionality in the GTK 2 code
* above.
*/
gtk_container_dequeue_resize_handler(GTK_CONTAINER(inst->window));
gdk_window_resize(gtk_widget_get_window(inst->window),
area_x + offset_x, area_y + offset_y);
#endif
#else /* GTK_CHECK_VERSION(3,0,0) */
int wp, hp;
compute_whole_window_size(inst, w, h, &wp, &hp);
gtk_window_resize(GTK_WINDOW(inst->window), wp, hp);
#endif
inst->win_resize_pending = true;
inst->term_resize_notification_required = from_terminal;
inst->win_resize_timeout = schedule_timer(
WIN_RESIZE_TIMEOUT, gtkwin_timer, inst);
}
static void gtkwin_request_resize(TermWin *tw, int w, int h)
{
GtkFrontend *inst = container_of(tw, GtkFrontend, termwin);
request_resize_internal(inst, true, w, h);
}
#if GTK_CHECK_VERSION(3,0,0)
char *colour_to_css(const GdkColor *col)
{
GdkRGBA rgba;
rgba.red = col->red / 65535.0;
rgba.green = col->green / 65535.0;
rgba.blue = col->blue / 65535.0;
rgba.alpha = 1.0;
return gdk_rgba_to_string(&rgba);
}
#endif
void set_gtk_widget_background(GtkWidget *widget, const GdkColor *col)
{
#if GTK_CHECK_VERSION(3,0,0)
GtkCssProvider *provider = gtk_css_provider_new();
char *col_css = colour_to_css(col);
char *data = dupprintf(
"#drawing-area, #top-level { background-color: %s; }\n", col_css);
gtk_css_provider_load_from_data(provider, data, -1, NULL);
GtkStyleContext *context = gtk_widget_get_style_context(widget);
gtk_style_context_add_provider(context, GTK_STYLE_PROVIDER(provider),
GTK_STYLE_PROVIDER_PRIORITY_APPLICATION);
free(data);
free(col_css);
#else
if (gtk_widget_get_window(widget)) {
/* For GTK1, which doesn't have a 'const' on
* gdk_window_set_background's second parameter type. */
GdkColor col_mutable = *col;
gdk_window_set_background(gtk_widget_get_window(widget), &col_mutable);
}
#endif
}
void set_window_background(GtkFrontend *inst)
{
if (inst->area)
set_gtk_widget_background(GTK_WIDGET(inst->area), &inst->cols[258]);
if (inst->window)
set_gtk_widget_background(GTK_WIDGET(inst->window), &inst->cols[258]);
}
static void gtkwin_palette_set(TermWin *tw, unsigned start, unsigned ncolours,
const rgb *colours)
{
GtkFrontend *inst = container_of(tw, GtkFrontend, termwin);
assert(start <= OSC4_NCOLOURS);
assert(ncolours <= OSC4_NCOLOURS - start);
#if !GTK_CHECK_VERSION(3,0,0)
if (!inst->colmap) {
inst->colmap = gdk_colormap_get_system();
} else {
gdk_colormap_free_colors(inst->colmap, inst->cols, OSC4_NCOLOURS);
}
#endif
for (unsigned i = 0; i < ncolours; i++) {
const rgb *in = &colours[i];
GdkColor *out = &inst->cols[start + i];
out->red = in->r * 0x0101;
out->green = in->g * 0x0101;
out->blue = in->b * 0x0101;
}
#if !GTK_CHECK_VERSION(3,0,0)
{
gboolean success[OSC4_NCOLOURS];
gdk_colormap_alloc_colors(inst->colmap, inst->cols + start,
ncolours, false, true, success);
for (unsigned i = 0; i < ncolours; i++) {
if (!success[i])
g_error("%s: couldn't allocate colour %d (#%02x%02x%02x)\n",
appname, start + i,
conf_get_int_int(inst->conf, CONF_colours, i*3+0),
conf_get_int_int(inst->conf, CONF_colours, i*3+1),
conf_get_int_int(inst->conf, CONF_colours, i*3+2));
}
}
#endif
if (start <= OSC4_COLOUR_bg && OSC4_COLOUR_bg < start + ncolours) {
/* Default Background has changed, so ensure that space between text
* area and window border is refreshed. */
set_window_background(inst);
if (inst->area && gtk_widget_get_window(inst->area)) {
draw_backing_rect(inst);
gtk_widget_queue_draw(inst->area);
}
}
}
static void gtkwin_palette_get_overrides(TermWin *tw, Terminal *term)
{
/* GTK has no analogue of Windows's 'standard system colours', so GTK PuTTY
* has no config option to override the normally configured colours from
* it */
}
static struct clipboard_state *clipboard_from_atom(
GtkFrontend *inst, GdkAtom atom)
{
int i;
for (i = 0; i < N_CLIPBOARDS; i++) {
struct clipboard_state *state = &inst->clipstates[i];
if (state->inst == inst && state->atom == atom)
return state;
}
return NULL;
}
#ifdef JUST_USE_GTK_CLIPBOARD_UTF8
/* ----------------------------------------------------------------------
* Clipboard handling, using the high-level GtkClipboard interface in
* as hands-off a way as possible. We write and read the clipboard as
* UTF-8 text, and let GTK deal with converting to any other text
* formats it feels like.
*/
void set_clipboard_atom(GtkFrontend *inst, int clipboard, GdkAtom atom)
{
struct clipboard_state *state = &inst->clipstates[clipboard];
state->inst = inst;
state->clipboard = clipboard;
state->atom = atom;
if (state->atom != GDK_NONE) {
state->gtkclipboard = gtk_clipboard_get_for_display(
gdk_display_get_default(), state->atom);
g_object_set_data(G_OBJECT(state->gtkclipboard), "user-data", state);
} else {
state->gtkclipboard = NULL;
}
}
int init_clipboard(GtkFrontend *inst)
{
set_clipboard_atom(inst, CLIP_PRIMARY, GDK_SELECTION_PRIMARY);
set_clipboard_atom(inst, CLIP_CLIPBOARD, clipboard_atom);
return true;
}
static void clipboard_provide_data(GtkClipboard *clipboard,
GtkSelectionData *selection_data,
guint info, gpointer data)
{
struct clipboard_data_instance *cdi =
(struct clipboard_data_instance *)data;
if (cdi->state && cdi->state->current_cdi == cdi) {
gtk_selection_data_set_text(selection_data, cdi->pasteout_data_utf8,
cdi->pasteout_data_utf8_len);
}
}
static void clipboard_clear(GtkClipboard *clipboard, gpointer data)
{
struct clipboard_data_instance *cdi =
(struct clipboard_data_instance *)data;
if (cdi->state && cdi->state->current_cdi == cdi) {
if (cdi->state->inst && cdi->state->inst->term) {
term_lost_clipboard_ownership(cdi->state->inst->term,
cdi->state->clipboard);
}
cdi->state->current_cdi = NULL;
}
sfree(cdi->pasteout_data_utf8);
cdi->next->prev = cdi->prev;
cdi->prev->next = cdi->next;
sfree(cdi);
}
static void gtkwin_clip_write(
TermWin *tw, int clipboard, wchar_t *data, int *attr,
truecolour *truecolour, int len, bool must_deselect)
{
GtkFrontend *inst = container_of(tw, GtkFrontend, termwin);
struct clipboard_state *state = &inst->clipstates[clipboard];
struct clipboard_data_instance *cdi;
if (inst->direct_to_font) {
/* In this clipboard mode, we just can't paste if we're in
* direct-to-font mode. Fortunately, that shouldn't be
* important, because we'll only use this clipboard handling
* code on systems where that kind of font doesn't exist
* anyway. */
return;
}
if (!state->gtkclipboard)
return;
cdi = snew(struct clipboard_data_instance);
cdi->state = state;
state->current_cdi = cdi;
cdi->pasteout_data_utf8 = snewn(len*6, char);
cdi->prev = inst->cdi_headtail.prev;
cdi->next = &inst->cdi_headtail;
cdi->next->prev = cdi;
cdi->prev->next = cdi;
{
const wchar_t *tmp = data;
int tmplen = len;
cdi->pasteout_data_utf8_len =
charset_from_unicode(&tmp, &tmplen, cdi->pasteout_data_utf8,
len*6, CS_UTF8, NULL, NULL, 0);
}
/*
* It would be nice to just call gtk_clipboard_set_text() in place
* of all of the faffing below. Unfortunately, that won't give me
* access to the clipboard-clear event, which we use to visually
* deselect text in the terminal.
*/
{
GtkTargetList *targetlist;
GtkTargetEntry *targettable;
gint n_targets;
targetlist = gtk_target_list_new(NULL, 0);
gtk_target_list_add_text_targets(targetlist, 0);
targettable = gtk_target_table_new_from_list(targetlist, &n_targets);
gtk_clipboard_set_with_data(state->gtkclipboard, targettable,
n_targets, clipboard_provide_data,
clipboard_clear, cdi);
gtk_target_table_free(targettable, n_targets);
gtk_target_list_unref(targetlist);
}
}
static void clipboard_text_received(GtkClipboard *clipboard,
const gchar *text, gpointer data)
{
GtkFrontend *inst = (GtkFrontend *)data;
wchar_t *paste;
size_t paste_len;
if (!text)
return;
paste = dup_mb_to_wc(CS_UTF8, text, length, &paste_len);
term_do_paste(inst->term, paste, paste_len);
sfree(paste);
}
static void gtkwin_clip_request_paste(TermWin *tw, int clipboard)
{
GtkFrontend *inst = container_of(tw, GtkFrontend, termwin);
struct clipboard_state *state = &inst->clipstates[clipboard];
if (!state->gtkclipboard)
return;
gtk_clipboard_request_text(state->gtkclipboard,
clipboard_text_received, inst);
}
#else /* JUST_USE_GTK_CLIPBOARD_UTF8 */
/* ----------------------------------------------------------------------
* Clipboard handling for X, using the low-level gtk_selection_*
* interface, handling conversions to fiddly things like compound text
* ourselves, and storing in X cut buffers too.
*
* This version of the clipboard code has to be kept around for GTK1,
* which doesn't have the higher-level GtkClipboard interface at all.
* And since it works on GTK2 and GTK3 too and has had a good few
* years of shakedown and bug fixing, we might as well keep using it
* where it's applicable.
*
* It's _possible_ that we might be able to replicate all the
* important wrinkles of this code in GtkClipboard. (In particular,
* cut buffers or local analogue look as if they might be accessible
* via gtk_clipboard_set_can_store(), and delivering text in
* non-Unicode formats only in the direct-to-font case ought to be
* possible if we can figure out the right set of things to put in the
* GtkTargetList.) But that work can wait until there's a need for it!
*/
#ifndef NOT_X_WINDOWS
/* Store the data in a cut-buffer. */
static void store_cutbuffer(GtkFrontend *inst, char *ptr, int len)
{
if (inst->disp) {
/* ICCCM says we must rotate the buffers before storing to buffer 0. */
XRotateBuffers(inst->disp, 1);
XStoreBytes(inst->disp, ptr, len);
}
}
/* Retrieve data from a cut-buffer.
* Returned data needs to be freed with XFree().
*/
static char *retrieve_cutbuffer(GtkFrontend *inst, int *nbytes)
{
char *ptr;
if (!inst->disp) {
*nbytes = 0;
return NULL;
}
ptr = XFetchBytes(inst->disp, nbytes);
if (*nbytes <= 0 && ptr != 0) {
XFree(ptr);
ptr = 0;
}
return ptr;
}
#endif /* NOT_X_WINDOWS */
static void gtkwin_clip_write(
TermWin *tw, int clipboard, wchar_t *data, int *attr,
truecolour *truecolour, int len, bool must_deselect)
{
GtkFrontend *inst = container_of(tw, GtkFrontend, termwin);
struct clipboard_state *state = &inst->clipstates[clipboard];
if (state->pasteout_data)
sfree(state->pasteout_data);
if (state->pasteout_data_ctext)
sfree(state->pasteout_data_ctext);
if (state->pasteout_data_utf8)
sfree(state->pasteout_data_utf8);
/*
* Set up UTF-8 and compound text paste data. This only happens
* if we aren't in direct-to-font mode using the D800 hack.
*/
if (!inst->direct_to_font) {
const wchar_t *tmp = data;
int tmplen = len;
#ifndef NOT_X_WINDOWS
XTextProperty tp;
char *list[1];
#endif
state->pasteout_data_utf8 = snewn(len*6, char);
state->pasteout_data_utf8_len = len*6;
state->pasteout_data_utf8_len =
charset_from_unicode(&tmp, &tmplen, state->pasteout_data_utf8,
state->pasteout_data_utf8_len,
CS_UTF8, NULL, NULL, 0);
if (state->pasteout_data_utf8_len == 0) {
sfree(state->pasteout_data_utf8);
state->pasteout_data_utf8 = NULL;
} else {
state->pasteout_data_utf8 =
sresize(state->pasteout_data_utf8,
state->pasteout_data_utf8_len + 1, char);
state->pasteout_data_utf8[state->pasteout_data_utf8_len] = '\0';
}
/*
* Now let Xlib convert our UTF-8 data into compound text.
*/
#ifndef NOT_X_WINDOWS
list[0] = state->pasteout_data_utf8;
if (inst->disp && Xutf8TextListToTextProperty(
inst->disp, list, 1, XCompoundTextStyle, &tp) == 0) {
state->pasteout_data_ctext = snewn(tp.nitems+1, char);
memcpy(state->pasteout_data_ctext, tp.value, tp.nitems);
state->pasteout_data_ctext_len = tp.nitems;
XFree(tp.value);
} else
#endif
{
state->pasteout_data_ctext = NULL;
state->pasteout_data_ctext_len = 0;
}
} else {
state->pasteout_data_utf8 = NULL;
state->pasteout_data_utf8_len = 0;
state->pasteout_data_ctext = NULL;
state->pasteout_data_ctext_len = 0;
}
{
size_t outlen;
state->pasteout_data = dup_wc_to_mb_c(
inst->ucsdata.line_codepage, data, len, "", &outlen);
/* We can't handle pastes larger than INT_MAX, because
* gtk_selection_data_set_text's length parameter is a gint */
if (outlen > INT_MAX)
outlen = INT_MAX;
state->pasteout_data_len = outlen;
}
#ifndef NOT_X_WINDOWS
/* The legacy X cut buffers go with PRIMARY, not any other clipboard */
if (state->atom == GDK_SELECTION_PRIMARY)
store_cutbuffer(inst, state->pasteout_data, state->pasteout_data_len);
#endif
if (gtk_selection_owner_set(inst->area, state->atom,
inst->input_event_time)) {
#if GTK_CHECK_VERSION(2,0,0)
gtk_selection_clear_targets(inst->area, state->atom);
#endif
gtk_selection_add_target(inst->area, state->atom,
GDK_SELECTION_TYPE_STRING, 1);
if (state->pasteout_data_ctext)
gtk_selection_add_target(inst->area, state->atom,
compound_text_atom, 1);
if (state->pasteout_data_utf8)
gtk_selection_add_target(inst->area, state->atom,
utf8_string_atom, 1);
}
if (must_deselect)
term_lost_clipboard_ownership(inst->term, clipboard);
}
static void selection_get(GtkWidget *widget, GtkSelectionData *seldata,
guint info, guint time_stamp, gpointer data)
{
GtkFrontend *inst = (GtkFrontend *)data;
GdkAtom target = gtk_selection_data_get_target(seldata);
struct clipboard_state *state = clipboard_from_atom(
inst, gtk_selection_data_get_selection(seldata));
if (!state)
return;
if (target == utf8_string_atom)
gtk_selection_data_set(seldata, target, 8,
(unsigned char *)state->pasteout_data_utf8,
state->pasteout_data_utf8_len);
else if (target == compound_text_atom)
gtk_selection_data_set(seldata, target, 8,
(unsigned char *)state->pasteout_data_ctext,
state->pasteout_data_ctext_len);
else
gtk_selection_data_set(seldata, target, 8,
(unsigned char *)state->pasteout_data,
state->pasteout_data_len);
}
static gint selection_clear(GtkWidget *widget, GdkEventSelection *seldata,
gpointer data)
{
GtkFrontend *inst = (GtkFrontend *)data;
struct clipboard_state *state = clipboard_from_atom(
inst, seldata->selection);
if (!state)
return true;
term_lost_clipboard_ownership(inst->term, state->clipboard);
if (state->pasteout_data)
sfree(state->pasteout_data);
if (state->pasteout_data_ctext)
sfree(state->pasteout_data_ctext);
if (state->pasteout_data_utf8)
sfree(state->pasteout_data_utf8);
state->pasteout_data = NULL;
state->pasteout_data_len = 0;
state->pasteout_data_ctext = NULL;
state->pasteout_data_ctext_len = 0;
state->pasteout_data_utf8 = NULL;
state->pasteout_data_utf8_len = 0;
return true;
}
static void gtkwin_clip_request_paste(TermWin *tw, int clipboard)
{
GtkFrontend *inst = container_of(tw, GtkFrontend, termwin);
struct clipboard_state *state = &inst->clipstates[clipboard];
/*
* In Unix, pasting is asynchronous: all we can do at the
* moment is to call gtk_selection_convert(), and when the data
* comes back _then_ we can call term_do_paste().
*/
if (!inst->direct_to_font) {
/*
* First we attempt to retrieve the selection as a UTF-8
* string (which we will convert to the correct code page
* before sending to the session, of course). If that
* fails, selection_received() will be informed and will
* fall back to an ordinary string.
*/
gtk_selection_convert(inst->area, state->atom, utf8_string_atom,
inst->input_event_time);
} else {
/*
* If we're in direct-to-font mode, we disable UTF-8
* pasting, and go straight to ordinary string data.
*/
gtk_selection_convert(inst->area, state->atom,
GDK_SELECTION_TYPE_STRING,
inst->input_event_time);
}
}
static void selection_received(GtkWidget *widget, GtkSelectionData *seldata,
guint time, gpointer data)
{
GtkFrontend *inst = (GtkFrontend *)data;
char *text;
int length;
#ifndef NOT_X_WINDOWS
char **list;
bool free_list_required = false;
bool free_required = false;
#endif
int charset;
GdkAtom seldata_target = gtk_selection_data_get_target(seldata);
GdkAtom seldata_type = gtk_selection_data_get_data_type(seldata);
const guchar *seldata_data = gtk_selection_data_get_data(seldata);
gint seldata_length = gtk_selection_data_get_length(seldata);
wchar_t *paste;
size_t paste_len;
struct clipboard_state *state = clipboard_from_atom(
inst, gtk_selection_data_get_selection(seldata));
if (!state)
return;
if (seldata_target == utf8_string_atom && seldata_length <= 0) {
/*
* Failed to get a UTF-8 selection string. Try compound
* text next.
*/
gtk_selection_convert(inst->area, state->atom,
compound_text_atom,
inst->input_event_time);
return;
}
if (seldata_target == compound_text_atom && seldata_length <= 0) {
/*
* Failed to get UTF-8 or compound text. Try an ordinary
* string.
*/
gtk_selection_convert(inst->area, state->atom,
GDK_SELECTION_TYPE_STRING,
inst->input_event_time);
return;
}
/*
* If we have data, but it's not of a type we can deal with,
* we have to ignore the data.
*/
if (seldata_length > 0 &&
seldata_type != GDK_SELECTION_TYPE_STRING &&
seldata_type != compound_text_atom &&
seldata_type != utf8_string_atom)
return;
/*
* If we have no data, try looking in a cut buffer.
*/
if (seldata_length <= 0) {
#ifndef NOT_X_WINDOWS
text = retrieve_cutbuffer(inst, &length);
if (length == 0)
return;
/* Xterm is rumoured to expect Latin-1, though I haven't checked the
* source, so use that as a de-facto standard. */
charset = CS_ISO8859_1;
free_required = true;
#else
return;
#endif
} else {
/*
* Convert COMPOUND_TEXT into UTF-8.
*/
if (seldata_type == compound_text_atom) {
#ifndef NOT_X_WINDOWS
XTextProperty tp;
int ret, count;
tp.value = (unsigned char *)seldata_data;
tp.encoding = (Atom) seldata_type;
tp.format = gtk_selection_data_get_format(seldata);
tp.nitems = seldata_length;
ret = inst->disp == NULL ? -1 :
Xutf8TextPropertyToTextList(inst->disp, &tp, &list, &count);
if (ret == 0 && count == 1) {
text = list[0];
length = strlen(list[0]);
charset = CS_UTF8;
free_list_required = true;
} else
#endif
{
/*
* Compound text failed; fall back to STRING.
*/
gtk_selection_convert(inst->area, state->atom,
GDK_SELECTION_TYPE_STRING,
inst->input_event_time);
return;
}
} else {
text = (char *)seldata_data;
length = seldata_length;
charset = (seldata_type == utf8_string_atom ?
CS_UTF8 : inst->ucsdata.line_codepage);
}
}
paste = dup_mb_to_wc_c(charset, text, length, &paste_len);
term_do_paste(inst->term, paste, paste_len);
sfree(paste);
#ifndef NOT_X_WINDOWS
if (free_list_required)
XFreeStringList(list);
if (free_required)
XFree(text);
#endif
}
static void init_one_clipboard(GtkFrontend *inst, int clipboard)
{
struct clipboard_state *state = &inst->clipstates[clipboard];
state->inst = inst;
state->clipboard = clipboard;
}
void set_clipboard_atom(GtkFrontend *inst, int clipboard, GdkAtom atom)
{
struct clipboard_state *state = &inst->clipstates[clipboard];
state->inst = inst;
state->clipboard = clipboard;
state->atom = atom;
}
void init_clipboard(GtkFrontend *inst)
{
#ifndef NOT_X_WINDOWS
/*
* Ensure that all the cut buffers exist - according to the ICCCM,
* we must do this before we start using cut buffers.
*/
if (inst->disp) {
unsigned char empty[] = "";
x11_ignore_error(inst->disp, BadMatch);
XChangeProperty(inst->disp, GDK_ROOT_WINDOW(), XA_CUT_BUFFER0,
XA_STRING, 8, PropModeAppend, empty, 0);
x11_ignore_error(inst->disp, BadMatch);
XChangeProperty(inst->disp, GDK_ROOT_WINDOW(), XA_CUT_BUFFER1,
XA_STRING, 8, PropModeAppend, empty, 0);
x11_ignore_error(inst->disp, BadMatch);
XChangeProperty(inst->disp, GDK_ROOT_WINDOW(), XA_CUT_BUFFER2,
XA_STRING, 8, PropModeAppend, empty, 0);
x11_ignore_error(inst->disp, BadMatch);
XChangeProperty(inst->disp, GDK_ROOT_WINDOW(), XA_CUT_BUFFER3,
XA_STRING, 8, PropModeAppend, empty, 0);
x11_ignore_error(inst->disp, BadMatch);
XChangeProperty(inst->disp, GDK_ROOT_WINDOW(), XA_CUT_BUFFER4,
XA_STRING, 8, PropModeAppend, empty, 0);
x11_ignore_error(inst->disp, BadMatch);
XChangeProperty(inst->disp, GDK_ROOT_WINDOW(), XA_CUT_BUFFER5,
XA_STRING, 8, PropModeAppend, empty, 0);
x11_ignore_error(inst->disp, BadMatch);
XChangeProperty(inst->disp, GDK_ROOT_WINDOW(), XA_CUT_BUFFER6,
XA_STRING, 8, PropModeAppend, empty, 0);
x11_ignore_error(inst->disp, BadMatch);
XChangeProperty(inst->disp, GDK_ROOT_WINDOW(), XA_CUT_BUFFER7,
XA_STRING, 8, PropModeAppend, empty, 0);
}
#endif
inst->clipstates[CLIP_PRIMARY].atom = GDK_SELECTION_PRIMARY;
inst->clipstates[CLIP_CLIPBOARD].atom = clipboard_atom;
init_one_clipboard(inst, CLIP_PRIMARY);
init_one_clipboard(inst, CLIP_CLIPBOARD);
g_signal_connect(G_OBJECT(inst->area), "selection_received",
G_CALLBACK(selection_received), inst);
g_signal_connect(G_OBJECT(inst->area), "selection_get",
G_CALLBACK(selection_get), inst);
g_signal_connect(G_OBJECT(inst->area), "selection_clear_event",
G_CALLBACK(selection_clear), inst);
}
/*
* End of selection/clipboard handling.
* ----------------------------------------------------------------------
*/
#endif /* JUST_USE_GTK_CLIPBOARD_UTF8 */
static void set_window_titles(GtkFrontend *inst)
{
/*
* We must always call set_icon_name after calling set_title,
* since set_title will write both names. Irritating, but such
* is life.
*/
gtk_window_set_title(GTK_WINDOW(inst->window), inst->wintitle);
if (!conf_get_bool(inst->conf, CONF_win_name_always))
gdk_window_set_icon_name(gtk_widget_get_window(inst->window),
inst->icontitle);
}
static void gtkwin_set_title(TermWin *tw, const char *title, int codepage)
{
GtkFrontend *inst = container_of(tw, GtkFrontend, termwin);
sfree(inst->wintitle);
if (codepage != CP_UTF8) {
wchar_t *title_w = dup_mb_to_wc(codepage, title);
inst->wintitle = encode_wide_string_as_utf8(title_w);
sfree(title_w);
} else {
inst->wintitle = dupstr(title);
}
set_window_titles(inst);
}
static void gtkwin_set_icon_title(TermWin *tw, const char *title, int codepage)
{
GtkFrontend *inst = container_of(tw, GtkFrontend, termwin);
sfree(inst->icontitle);
if (codepage != CP_UTF8) {
wchar_t *title_w = dup_mb_to_wc(codepage, title);
inst->icontitle = encode_wide_string_as_utf8(title_w);
sfree(title_w);
} else {
inst->icontitle = dupstr(title);
}
set_window_titles(inst);
}
static void gtkwin_set_scrollbar(TermWin *tw, int total, int start, int page)
{
GtkFrontend *inst = container_of(tw, GtkFrontend, termwin);
if (!conf_get_bool(inst->conf, CONF_scrollbar))
return;
inst->ignore_sbar = true;
gtk_adjustment_set_lower(inst->sbar_adjust, 0);
gtk_adjustment_set_upper(inst->sbar_adjust, total);
gtk_adjustment_set_value(inst->sbar_adjust, start);
gtk_adjustment_set_page_size(inst->sbar_adjust, page);
gtk_adjustment_set_step_increment(inst->sbar_adjust, 1);
gtk_adjustment_set_page_increment(inst->sbar_adjust, page/2);
#if !GTK_CHECK_VERSION(3,18,0)
gtk_adjustment_changed(inst->sbar_adjust);
#endif
inst->ignore_sbar = false;
}
void scrollbar_moved(GtkAdjustment *adj, GtkFrontend *inst)
{
if (!conf_get_bool(inst->conf, CONF_scrollbar))
return;
if (!inst->ignore_sbar)
term_scroll(inst->term, 1, (int)gtk_adjustment_get_value(adj));
}
static void show_scrollbar(GtkFrontend *inst, gboolean visible)
{
inst->sbar_visible = visible;
if (visible)
gtk_widget_show(inst->sbar);
else
gtk_widget_hide(inst->sbar);
}
static void gtkwin_set_cursor_pos(TermWin *tw, int x, int y)
{
/*
* This is meaningless under X.
*/
}
/*
* This is still called when mode==BELL_VISUAL, even though the
* visual bell is handled entirely within terminal.c, because we
* may want to perform additional actions on any kind of bell (for
* example, taskbar flashing in Windows).
*/
static void gtkwin_bell(TermWin *tw, int mode)
{
/* GtkFrontend *inst = container_of(tw, GtkFrontend, termwin); */
if (mode == BELL_DEFAULT)
gdk_display_beep(gdk_display_get_default());
}
static int gtkwin_char_width(TermWin *tw, int uc)
{
/*
* In this front end, double-width characters are handled using a
* separate font, so this can safely just return 1 always.
*/
return 1;
}
static bool gtkwin_setup_draw_ctx(TermWin *tw)
{
GtkFrontend *inst = container_of(tw, GtkFrontend, termwin);
if (!gtk_widget_get_window(inst->area))
return false;
inst->uctx.type = inst->drawtype;
#ifdef DRAW_TEXT_GDK
if (inst->uctx.type == DRAWTYPE_GDK) {
/* If we're doing GDK-based drawing, then we also expect
* inst->pixmap to exist. */
inst->uctx.u.gdk.target = inst->pixmap;
inst->uctx.u.gdk.gc = gdk_gc_new(gtk_widget_get_window(inst->area));
}
#endif
#ifdef DRAW_TEXT_CAIRO
if (inst->uctx.type == DRAWTYPE_CAIRO) {
inst->uctx.u.cairo.widget = GTK_WIDGET(inst->area);
/* If we're doing Cairo drawing, we expect inst->surface to
* exist, and we draw to that first, regardless of whether we
* subsequently copy the results to inst->pixmap. */
inst->uctx.u.cairo.cr = cairo_create(inst->surface);
cairo_scale(inst->uctx.u.cairo.cr, inst->scale, inst->scale);
cairo_setup_draw_ctx(inst);
}
#endif
return true;
}
static void gtkwin_free_draw_ctx(TermWin *tw)
{
GtkFrontend *inst = container_of(tw, GtkFrontend, termwin);
#ifdef DRAW_TEXT_GDK
if (inst->uctx.type == DRAWTYPE_GDK) {
gdk_gc_unref(inst->uctx.u.gdk.gc);
}
#endif
#ifdef DRAW_TEXT_CAIRO
if (inst->uctx.type == DRAWTYPE_CAIRO) {
cairo_destroy(inst->uctx.u.cairo.cr);
}
#endif
}
static void draw_update(GtkFrontend *inst, int x, int y, int w, int h)
{
#if defined DRAW_TEXT_CAIRO && !defined NO_BACKING_PIXMAPS
if (inst->uctx.type == DRAWTYPE_CAIRO) {
/*
* If inst->surface and inst->pixmap both exist, then we've
* just drawn new content to the former which we must copy to
* the latter.
*/
cairo_t *cr = gdk_cairo_create(inst->pixmap);
cairo_set_source_surface(cr, inst->surface, 0, 0);
cairo_rectangle(cr, x, y, w, h);
cairo_fill(cr);
cairo_destroy(cr);
}
#endif
/*
* Now we just queue a window redraw, which will cause
* inst->surface or inst->pixmap (whichever is appropriate for our
* compile mode) to be copied to the real window when we receive
* the resulting "expose" or "draw" event.
*
* Amazingly, this one API call is actually valid in all versions
* of GTK :-)
*/
gtk_widget_queue_draw_area(inst->area, x, y, w, h);
}
#ifdef DRAW_TEXT_CAIRO
static void cairo_set_source_rgb_dim(cairo_t *cr, double r, double g, double b,
bool dim)
{
if (dim)
cairo_set_source_rgb(cr, r * 2 / 3, g * 2 / 3, b * 2 / 3);
else
cairo_set_source_rgb(cr, r, g, b);
}
#endif
static void draw_set_colour(GtkFrontend *inst, int col, bool dim)
{
#ifdef DRAW_TEXT_GDK
if (inst->uctx.type == DRAWTYPE_GDK) {
if (dim) {
#if GTK_CHECK_VERSION(2,0,0)
GdkColor color;
color.red = inst->cols[col].red * 2 / 3;
color.green = inst->cols[col].green * 2 / 3;
color.blue = inst->cols[col].blue * 2 / 3;
gdk_gc_set_rgb_fg_color(inst->uctx.u.gdk.gc, &color);
#else
/* Poor GTK1 fallback */
gdk_gc_set_foreground(inst->uctx.u.gdk.gc, &inst->cols[col]);
#endif
} else {
gdk_gc_set_foreground(inst->uctx.u.gdk.gc, &inst->cols[col]);
}
}
#endif
#ifdef DRAW_TEXT_CAIRO
if (inst->uctx.type == DRAWTYPE_CAIRO) {
cairo_set_source_rgb_dim(inst->uctx.u.cairo.cr,
inst->cols[col].red / 65535.0,
inst->cols[col].green / 65535.0,
inst->cols[col].blue / 65535.0, dim);
}
#endif
}
static void draw_set_colour_rgb(GtkFrontend *inst, optionalrgb orgb, bool dim)
{
#ifdef DRAW_TEXT_GDK
if (inst->uctx.type == DRAWTYPE_GDK) {
#if GTK_CHECK_VERSION(2,0,0)
GdkColor color;
color.red = orgb.r * 256;
color.green = orgb.g * 256;
color.blue = orgb.b * 256;
if (dim) {
color.red = color.red * 2 / 3;
color.green = color.green * 2 / 3;
color.blue = color.blue * 2 / 3;
}
gdk_gc_set_rgb_fg_color(inst->uctx.u.gdk.gc, &color);
#else
/* Poor GTK1 fallback */
gdk_gc_set_foreground(inst->uctx.u.gdk.gc, &inst->cols[256]);
#endif
}
#endif
#ifdef DRAW_TEXT_CAIRO
if (inst->uctx.type == DRAWTYPE_CAIRO) {
cairo_set_source_rgb_dim(inst->uctx.u.cairo.cr, orgb.r / 255.0,
orgb.g / 255.0, orgb.b / 255.0, dim);
}
#endif
}
static void draw_rectangle(GtkFrontend *inst, bool filled,
int x, int y, int w, int h)
{
#ifdef DRAW_TEXT_GDK
if (inst->uctx.type == DRAWTYPE_GDK) {
gdk_draw_rectangle(inst->uctx.u.gdk.target, inst->uctx.u.gdk.gc,
filled, x, y, w, h);
}
#endif
#ifdef DRAW_TEXT_CAIRO
if (inst->uctx.type == DRAWTYPE_CAIRO) {
cairo_new_path(inst->uctx.u.cairo.cr);
if (filled) {
cairo_rectangle(inst->uctx.u.cairo.cr, x, y, w, h);
cairo_fill(inst->uctx.u.cairo.cr);
} else {
cairo_rectangle(inst->uctx.u.cairo.cr,
x + 0.5, y + 0.5, w, h);
cairo_close_path(inst->uctx.u.cairo.cr);
cairo_stroke(inst->uctx.u.cairo.cr);
}
}
#endif
}
static void draw_clip(GtkFrontend *inst, int x, int y, int w, int h)
{
#ifdef DRAW_TEXT_GDK
if (inst->uctx.type == DRAWTYPE_GDK) {
GdkRectangle r;
r.x = x;
r.y = y;
r.width = w;
r.height = h;
gdk_gc_set_clip_rectangle(inst->uctx.u.gdk.gc, &r);
}
#endif
#ifdef DRAW_TEXT_CAIRO
if (inst->uctx.type == DRAWTYPE_CAIRO) {
cairo_reset_clip(inst->uctx.u.cairo.cr);
cairo_new_path(inst->uctx.u.cairo.cr);
cairo_rectangle(inst->uctx.u.cairo.cr, x, y, w, h);
cairo_clip(inst->uctx.u.cairo.cr);
}
#endif
}
static void draw_point(GtkFrontend *inst, int x, int y)
{
#ifdef DRAW_TEXT_GDK
if (inst->uctx.type == DRAWTYPE_GDK) {
gdk_draw_point(inst->uctx.u.gdk.target, inst->uctx.u.gdk.gc, x, y);
}
#endif
#ifdef DRAW_TEXT_CAIRO
if (inst->uctx.type == DRAWTYPE_CAIRO) {
cairo_new_path(inst->uctx.u.cairo.cr);
cairo_rectangle(inst->uctx.u.cairo.cr, x, y, 1, 1);
cairo_fill(inst->uctx.u.cairo.cr);
}
#endif
}
static void draw_line(GtkFrontend *inst, int x0, int y0, int x1, int y1)
{
#ifdef DRAW_TEXT_GDK
if (inst->uctx.type == DRAWTYPE_GDK) {
gdk_draw_line(inst->uctx.u.gdk.target, inst->uctx.u.gdk.gc,
x0, y0, x1, y1);
}
#endif
#ifdef DRAW_TEXT_CAIRO
if (inst->uctx.type == DRAWTYPE_CAIRO) {
cairo_new_path(inst->uctx.u.cairo.cr);
cairo_move_to(inst->uctx.u.cairo.cr, x0 + 0.5, y0 + 0.5);
cairo_line_to(inst->uctx.u.cairo.cr, x1 + 0.5, y1 + 0.5);
cairo_stroke(inst->uctx.u.cairo.cr);
}
#endif
}
static void draw_stretch_before(GtkFrontend *inst, int x, int y,
int w, bool wdouble,
int h, bool hdouble, bool hbothalf)
{
#ifdef DRAW_TEXT_CAIRO
if (inst->uctx.type == DRAWTYPE_CAIRO) {
cairo_matrix_t matrix;
matrix.xy = 0;
matrix.yx = 0;
if (wdouble) {
matrix.xx = 2;
matrix.x0 = -x;
} else {
matrix.xx = 1;
matrix.x0 = 0;
}
if (hdouble) {
matrix.yy = 2;
if (hbothalf) {
matrix.y0 = -(y+h);
} else {
matrix.y0 = -y;
}
} else {
matrix.yy = 1;
matrix.y0 = 0;
}
cairo_transform(inst->uctx.u.cairo.cr, &matrix);
}
#endif
}
static void draw_stretch_after(GtkFrontend *inst, int x, int y,
int w, bool wdouble,
int h, bool hdouble, bool hbothalf)
{
#ifdef DRAW_TEXT_GDK
#ifndef NO_BACKING_PIXMAPS
if (inst->uctx.type == DRAWTYPE_GDK) {
/*
* I can't find any plausible StretchBlt equivalent in the X
* server, so I'm going to do this the slow and painful way.
* This will involve repeated calls to gdk_draw_pixmap() to
* stretch the text horizontally. It's O(N^2) in time and O(N)
* in network bandwidth, but you try thinking of a better way.
* :-(
*/
int i;
if (wdouble) {
for (i = 0; i < w; i++) {
gdk_draw_pixmap(inst->uctx.u.gdk.target,
inst->uctx.u.gdk.gc,
inst->uctx.u.gdk.target,
x + 2*i, y,
x + 2*i+1, y,
w - i, h);
}
w *= 2;
}
if (hdouble) {
int dt, db;
/* Now stretch vertically, in the same way. */
if (hbothalf)
dt = 0, db = 1;
else
dt = 1, db = 0;
for (i = 0; i < h; i += 2) {
gdk_draw_pixmap(inst->uctx.u.gdk.target,
inst->uctx.u.gdk.gc,
inst->uctx.u.gdk.target,
x, y + dt*i + db,
x, y + dt*(i+1),
w, h-i-1);
}
}
}
#else
#error No way to implement stretching in GDK without a reliable backing pixmap
#endif
#endif /* DRAW_TEXT_GDK */
#ifdef DRAW_TEXT_CAIRO
if (inst->uctx.type == DRAWTYPE_CAIRO) {
cairo_set_matrix(inst->uctx.u.cairo.cr,
&inst->uctx.u.cairo.origmatrix);
}
#endif
}
static void draw_backing_rect(GtkFrontend *inst)
{
if (!win_setup_draw_ctx(&inst->termwin))
return;
draw_set_colour(inst, 258, false);
draw_rectangle(inst, true, 0, 0, inst->backing_w, inst->backing_h);
draw_update(inst, 0, 0, inst->backing_w, inst->backing_h);
win_free_draw_ctx(&inst->termwin);
}
/*
* Draw a line of text in the window, at given character
* coordinates, in given attributes.
*
* We are allowed to fiddle with the contents of `text'.
*/
static void do_text_internal(
GtkFrontend *inst, int x, int y, wchar_t *text, int len,
unsigned long attr, int lattr, truecolour truecolour)
{
int ncombining;
int nfg, nbg, t, fontid, rlen, widefactor;
bool bold;
bool monochrome =
gdk_visual_get_depth(gtk_widget_get_visual(inst->area)) == 1;
if (attr & TATTR_COMBINING) {
ncombining = len;
len = 1;
} else
ncombining = 1;
if (monochrome)
truecolour.fg = truecolour.bg = optionalrgb_none;
nfg = ((monochrome ? ATTR_DEFFG : (attr & ATTR_FGMASK)) >> ATTR_FGSHIFT);
nbg = ((monochrome ? ATTR_DEFBG : (attr & ATTR_BGMASK)) >> ATTR_BGSHIFT);
if (!!(attr & ATTR_REVERSE) ^ (monochrome && (attr & TATTR_ACTCURS))) {
struct optionalrgb trgb;
t = nfg;
nfg = nbg;
nbg = t;
trgb = truecolour.fg;
truecolour.fg = truecolour.bg;
truecolour.bg = trgb;
}
if ((inst->bold_style & BOLD_STYLE_COLOUR) && (attr & ATTR_BOLD)) {
if (nfg < 16) nfg |= 8;
else if (nfg >= 256) nfg |= 1;
}
if ((inst->bold_style & BOLD_STYLE_COLOUR) && (attr & ATTR_BLINK)) {
if (nbg < 16) nbg |= 8;
else if (nbg >= 256) nbg |= 1;
}
if ((attr & TATTR_ACTCURS) && !monochrome) {
truecolour.fg = truecolour.bg = optionalrgb_none;
nfg = 260;
nbg = 261;
attr &= ~ATTR_DIM; /* don't dim the cursor */
}
fontid = 0;
if (attr & ATTR_WIDE) {
widefactor = 2;
fontid |= 2;
} else {
widefactor = 1;
}
if ((attr & ATTR_BOLD) && (inst->bold_style & BOLD_STYLE_FONT)) {
bold = true;
fontid |= 1;
} else {
bold = false;
}
if (!inst->fonts[fontid]) {
int i;
/*
* Fall back through font ids with subsets of this one's
* set bits, in order.
*/
for (i = fontid; i-- > 0 ;) {
if (i & ~fontid)
continue; /* some other bit is set */
if (inst->fonts[i]) {
fontid = i;
break;
}
}
assert(inst->fonts[fontid]); /* we should at least have hit zero */
}
if ((lattr & LATTR_MODE) != LATTR_NORM) {
x *= 2;
if (x >= inst->term->cols)
return;
if (x + len*2*widefactor > inst->term->cols) {
len = (inst->term->cols-x)/2/widefactor;/* trim to LH half */
if (len == 0)
return; /* rounded down half a double-width char to zero */
}
rlen = len * 2;
} else
rlen = len;
draw_clip(inst,
x*inst->font_width+inst->window_border,
y*inst->font_height+inst->window_border,
rlen*widefactor*inst->font_width,
inst->font_height);
if ((lattr & LATTR_MODE) != LATTR_NORM) {
draw_stretch_before(inst,
x*inst->font_width+inst->window_border,
y*inst->font_height+inst->window_border,
rlen*widefactor*inst->font_width, true,
inst->font_height,
((lattr & LATTR_MODE) != LATTR_WIDE),
((lattr & LATTR_MODE) == LATTR_BOT));
}
if (truecolour.bg.enabled)
draw_set_colour_rgb(inst, truecolour.bg, attr & ATTR_DIM);
else
draw_set_colour(inst, nbg, attr & ATTR_DIM);
draw_rectangle(inst, true,
x*inst->font_width+inst->window_border,
y*inst->font_height+inst->window_border,
rlen*widefactor*inst->font_width, inst->font_height);
if (truecolour.fg.enabled)
draw_set_colour_rgb(inst, truecolour.fg, attr & ATTR_DIM);
else
draw_set_colour(inst, nfg, attr & ATTR_DIM);
if (ncombining > 1) {
assert(len == 1);
unifont_draw_combining(&inst->uctx, inst->fonts[fontid],
x*inst->font_width+inst->window_border,
(y*inst->font_height+inst->window_border+
inst->fonts[0]->ascent),
text, ncombining, widefactor > 1,
bold, inst->font_width);
} else {
unifont_draw_text(&inst->uctx, inst->fonts[fontid],
x*inst->font_width+inst->window_border,
(y*inst->font_height+inst->window_border+
inst->fonts[0]->ascent),
text, len, widefactor > 1,
bold, inst->font_width);
}
if (attr & ATTR_UNDER) {
int uheight = inst->fonts[0]->ascent + 1;
if (uheight >= inst->font_height)
uheight = inst->font_height - 1;
draw_line(inst, x*inst->font_width+inst->window_border,
y*inst->font_height + uheight + inst->window_border,
(x+len)*widefactor*inst->font_width-1+inst->window_border,
y*inst->font_height + uheight + inst->window_border);
}
if (attr & ATTR_STRIKE) {
int sheight = inst->fonts[fontid]->strikethrough_y;
draw_line(inst, x*inst->font_width+inst->window_border,
y*inst->font_height + sheight + inst->window_border,
(x+len)*widefactor*inst->font_width-1+inst->window_border,
y*inst->font_height + sheight + inst->window_border);
}
if ((lattr & LATTR_MODE) != LATTR_NORM) {
draw_stretch_after(inst,
x*inst->font_width+inst->window_border,
y*inst->font_height+inst->window_border,
rlen*widefactor*inst->font_width, true,
inst->font_height,
((lattr & LATTR_MODE) != LATTR_WIDE),
((lattr & LATTR_MODE) == LATTR_BOT));
}
}
static void gtkwin_draw_text(
TermWin *tw, int x, int y, wchar_t *text, int len,
unsigned long attr, int lattr, truecolour truecolour)
{
GtkFrontend *inst = container_of(tw, GtkFrontend, termwin);
int widefactor;
do_text_internal(inst, x, y, text, len, attr, lattr, truecolour);
if (attr & ATTR_WIDE) {
widefactor = 2;
} else {
widefactor = 1;
}
if ((lattr & LATTR_MODE) != LATTR_NORM) {
x *= 2;
if (x >= inst->term->cols)
return;
if (x + len*2*widefactor > inst->term->cols)
len = (inst->term->cols-x)/2/widefactor;/* trim to LH half */
len *= 2;
}
draw_update(inst,
x*inst->font_width+inst->window_border,
y*inst->font_height+inst->window_border,
len*widefactor*inst->font_width, inst->font_height);
}
static void gtkwin_draw_cursor(
TermWin *tw, int x, int y, wchar_t *text, int len,
unsigned long attr, int lattr, truecolour truecolour)
{
GtkFrontend *inst = container_of(tw, GtkFrontend, termwin);
bool active, passive;
int widefactor;
if (attr & TATTR_PASCURS) {
attr &= ~TATTR_PASCURS;
passive = true;
} else
passive = false;
if ((attr & TATTR_ACTCURS) && inst->cursor_type != CURSOR_BLOCK) {
attr &= ~TATTR_ACTCURS;
active = true;
} else
active = false;
do_text_internal(inst, x, y, text, len, attr, lattr, truecolour);
if (attr & TATTR_COMBINING)
len = 1;
if (attr & ATTR_WIDE) {
widefactor = 2;
} else {
widefactor = 1;
}
if ((lattr & LATTR_MODE) != LATTR_NORM) {
x *= 2;
if (x >= inst->term->cols)
return;
if (x + len*2*widefactor > inst->term->cols)
len = (inst->term->cols-x)/2/widefactor;/* trim to LH half */
len *= 2;
}
if (inst->cursor_type == CURSOR_BLOCK) {
/*
* An active block cursor will already have been done by
* the above do_text call, so we only need to do anything
* if it's passive.
*/
if (passive) {
draw_set_colour(inst, 261, false);
draw_rectangle(inst, false,
x*inst->font_width+inst->window_border,
y*inst->font_height+inst->window_border,
len*widefactor*inst->font_width-1,
inst->font_height-1);
}
} else {
int uheight;
int startx, starty, dx, dy, length, i;
int char_width;
if ((attr & ATTR_WIDE) || (lattr & LATTR_MODE) != LATTR_NORM)
char_width = 2*inst->font_width;
else
char_width = inst->font_width;
if (inst->cursor_type == CURSOR_UNDERLINE) {
uheight = inst->fonts[0]->ascent + 1;
if (uheight >= inst->font_height)
uheight = inst->font_height - 1;
startx = x * inst->font_width + inst->window_border;
starty = y * inst->font_height + inst->window_border + uheight;
dx = 1;
dy = 0;
length = len * widefactor * char_width;
} else /* inst->cursor_type == CURSOR_VERTICAL_LINE */ {
int xadjust = 0;
if (attr & TATTR_RIGHTCURS)
xadjust = char_width - 1;
startx = x * inst->font_width + inst->window_border + xadjust;
starty = y * inst->font_height + inst->window_border;
dx = 0;
dy = 1;
length = inst->font_height;
}
draw_set_colour(inst, 261, false);
if (passive) {
for (i = 0; i < length; i++) {
if (i % 2 == 0) {
draw_point(inst, startx, starty);
}
startx += dx;
starty += dy;
}
} else if (active) {
draw_line(inst, startx, starty,
startx + (length-1) * dx, starty + (length-1) * dy);
} /* else no cursor (e.g., blinked off) */
}
draw_update(inst,
x*inst->font_width+inst->window_border,
y*inst->font_height+inst->window_border,
len*widefactor*inst->font_width, inst->font_height);
#if GTK_CHECK_VERSION(2,0,0)
{
GdkRectangle cursorrect;
cursorrect.x = x*inst->font_width+inst->window_border;
cursorrect.y = y*inst->font_height+inst->window_border;
cursorrect.width = len*widefactor*inst->font_width;
cursorrect.height = inst->font_height;
gtk_im_context_set_cursor_location(inst->imc, &cursorrect);
}
#endif
}
#if !GTK_CHECK_VERSION(2,0,0)
/*
* For GTK 1, manual code to scale an in-memory XPM, producing a new
* one as output. It will be ugly, but good enough to use as a trust
* sigil.
*/
struct XpmHolder {
char **strings;
size_t nstrings;
};
static void xpmholder_free(XpmHolder *xh)
{
for (size_t i = 0; i < xh->nstrings; i++)
sfree(xh->strings[i]);
sfree(xh->strings);
sfree(xh);
}
static XpmHolder *xpm_scale(const char *const *xpm, int wo, int ho)
{
/* Get image dimensions, # colours, and chars-per-pixel */
int wi = 0, hi = 0, nc = 0, cpp = 0;
int retd = sscanf(xpm[0], "%d %d %d %d", &wi, &hi, &nc, &cpp);
assert(retd == 4);
/* Make output XpmHolder */
XpmHolder *xh = snew(XpmHolder);
xh->nstrings = 1 + nc + ho;
xh->strings = snewn(xh->nstrings, char *);
/* Set up header */
xh->strings[0] = dupprintf("%d %d %d %d", wo, ho, nc, cpp);
for (int i = 0; i < nc; i++)
xh->strings[1 + i] = dupstr(xpm[1 + i]);
/* Scale image */
for (int yo = 0; yo < ho; yo++) {
int yi = yo * hi / ho;
char *ro = snewn(cpp * wo + 1, char);
ro[cpp * wo] = '\0';
xh->strings[1 + nc + yo] = ro;
const char *ri = xpm[1 + nc + yi];
for (int xo = 0; xo < wo; xo++) {
int xi = xo * wi / wo;
memcpy(ro + cpp * xo, ri + cpp * xi, cpp);
}
}
return xh;
}
#endif /* !GTK_CHECK_VERSION(2,0,0) */
static void gtkwin_draw_trust_sigil(TermWin *tw, int cx, int cy)
{
GtkFrontend *inst = container_of(tw, GtkFrontend, termwin);
int x = cx * inst->font_width + inst->window_border;
int y = cy * inst->font_height + inst->window_border;
int w = 2*inst->font_width, h = inst->font_height;
if (inst->trust_sigil_w != w || inst->trust_sigil_h != h ||
#if GTK_CHECK_VERSION(2,0,0)
!inst->trust_sigil_pb
#else
!inst->trust_sigil_pm
#endif
) {
#if GTK_CHECK_VERSION(2,0,0)
if (inst->trust_sigil_pb)
g_object_unref(G_OBJECT(inst->trust_sigil_pb));
#else
if (inst->trust_sigil_pm)
gdk_pixmap_unref(inst->trust_sigil_pm);
#endif
int best_icon_index = 0;
unsigned score = UINT_MAX;
for (int i = 0; i < n_main_icon; i++) {
int iw, ih;
if (sscanf(main_icon[i][0], "%d %d", &iw, &ih) == 2) {
int this_excess = (iw + ih) - (w + h);
unsigned this_score = (abs(this_excess) |
(this_excess > 0 ? 0 : 0x80000000U));
if (this_score < score) {
best_icon_index = i;
score = this_score;
}
}
}
#if GTK_CHECK_VERSION(2,0,0)
GdkPixbuf *icon_unscaled = gdk_pixbuf_new_from_xpm_data(
(const gchar **)main_icon[best_icon_index]);
inst->trust_sigil_pb = gdk_pixbuf_scale_simple(
icon_unscaled, w, h, GDK_INTERP_BILINEAR);
g_object_unref(G_OBJECT(icon_unscaled));
#else
XpmHolder *xh = xpm_scale(main_icon[best_icon_index], w, h);
inst->trust_sigil_pm = gdk_pixmap_create_from_xpm_d(
gtk_widget_get_window(inst->window), NULL,
&inst->cols[258], xh->strings);
xpmholder_free(xh);
#endif
inst->trust_sigil_w = w;
inst->trust_sigil_h = h;
}
#ifdef DRAW_TEXT_GDK
if (inst->uctx.type == DRAWTYPE_GDK) {
#if GTK_CHECK_VERSION(2,0,0)
gdk_draw_pixbuf(inst->uctx.u.gdk.target, inst->uctx.u.gdk.gc,
inst->trust_sigil_pb, 0, 0, x, y, w, h,
GDK_RGB_DITHER_NORMAL, 0, 0);
#else
gdk_draw_pixmap(inst->uctx.u.gdk.target, inst->uctx.u.gdk.gc,
inst->trust_sigil_pm, 0, 0, x, y, w, h);
#endif
}
#endif
#ifdef DRAW_TEXT_CAIRO
if (inst->uctx.type == DRAWTYPE_CAIRO) {
inst->uctx.u.cairo.widget = GTK_WIDGET(inst->area);
cairo_save(inst->uctx.u.cairo.cr);
cairo_translate(inst->uctx.u.cairo.cr, x, y);
gdk_cairo_set_source_pixbuf(inst->uctx.u.cairo.cr,
inst->trust_sigil_pb, 0, 0);
cairo_rectangle(inst->uctx.u.cairo.cr, 0, 0, w, h);
cairo_fill(inst->uctx.u.cairo.cr);
cairo_restore(inst->uctx.u.cairo.cr);
}
#endif
draw_update(inst, x, y, w, h);
}
GdkCursor *make_mouse_ptr(GtkFrontend *inst, int cursor_val)
{
if (cursor_val == -1) {
#if GTK_CHECK_VERSION(2,16,0)
cursor_val = GDK_BLANK_CURSOR;
#else
/*
* Work around absence of GDK_BLANK_CURSOR by inventing a
* blank pixmap.
*/
GdkCursor *ret;
GdkColor bg = { 0, 0, 0, 0 };
GdkPixmap *pm = gdk_pixmap_new(NULL, 1, 1, 1);
GdkGC *gc = gdk_gc_new(pm);
gdk_gc_set_foreground(gc, &bg);
gdk_draw_rectangle(pm, gc, 1, 0, 0, 1, 1);
gdk_gc_unref(gc);
ret = gdk_cursor_new_from_pixmap(pm, pm, &bg, &bg, 1, 1);
gdk_pixmap_unref(pm);
return ret;
#endif
}
return gdk_cursor_new(cursor_val);
}
void modalfatalbox(const char *p, ...)
{
va_list ap;
fprintf(stderr, "FATAL ERROR: ");
va_start(ap, p);
vfprintf(stderr, p, ap);
va_end(ap);
fputc('\n', stderr);
exit(1);
}
#ifndef NOT_X_WINDOWS
static const char *gtk_seat_get_x_display(Seat *seat)
{
if (GDK_IS_X11_DISPLAY(gdk_display_get_default()))
return gdk_get_display();
return NULL;
}
static bool gtk_seat_get_windowid(Seat *seat, long *id)
{
GtkFrontend *inst = container_of(seat, GtkFrontend, seat);
GdkWindow *window = gtk_widget_get_window(inst->area);
if (!GDK_IS_X11_WINDOW(window))
return false;
*id = GDK_WINDOW_XID(window);
return true;
}
#endif
char *setup_fonts_ucs(GtkFrontend *inst)
{
bool shadowbold = conf_get_bool(inst->conf, CONF_shadowbold);
int shadowboldoffset = conf_get_int(inst->conf, CONF_shadowboldoffset);
FontSpec *fs;
unifont *fonts[4];
int i;
fs = conf_get_fontspec(inst->conf, CONF_font);
fonts[0] = multifont_create(inst->area, fs->name, false, false,
shadowboldoffset, shadowbold);
if (!fonts[0]) {
return dupprintf("unable to load font \"%s\"", fs->name);
}
fs = conf_get_fontspec(inst->conf, CONF_boldfont);
if (shadowbold || !fs->name[0]) {
fonts[1] = NULL;
} else {
fonts[1] = multifont_create(inst->area, fs->name, false, true,
shadowboldoffset, shadowbold);
if (!fonts[1]) {
if (fonts[0])
unifont_destroy(fonts[0]);
return dupprintf("unable to load bold font \"%s\"", fs->name);
}
}
fs = conf_get_fontspec(inst->conf, CONF_widefont);
if (fs->name[0]) {
fonts[2] = multifont_create(inst->area, fs->name, true, false,
shadowboldoffset, shadowbold);
if (!fonts[2]) {
for (i = 0; i < 2; i++)
if (fonts[i])
unifont_destroy(fonts[i]);
return dupprintf("unable to load wide font \"%s\"", fs->name);
}
} else {
fonts[2] = NULL;
}
fs = conf_get_fontspec(inst->conf, CONF_wideboldfont);
if (shadowbold || !fs->name[0]) {
fonts[3] = NULL;
} else {
fonts[3] = multifont_create(inst->area, fs->name, true, true,
shadowboldoffset, shadowbold);
if (!fonts[3]) {
for (i = 0; i < 3; i++)
if (fonts[i])
unifont_destroy(fonts[i]);
return dupprintf("unable to load wide bold font \"%s\"", fs->name);
}
}
/*
* Now we've got past all the possible error conditions, we can
* actually update our state.
*/
for (i = 0; i < 4; i++) {
if (inst->fonts[i])
unifont_destroy(inst->fonts[i]);
inst->fonts[i] = fonts[i];
}
if (inst->font_width != inst->fonts[0]->width ||
inst->font_height != inst->fonts[0]->height) {
inst->font_width = inst->fonts[0]->width;
inst->font_height = inst->fonts[0]->height;
/*
* The font size has changed, so force the next call to
* drawing_area_setup to regenerate the backing surface.
*/
inst->drawing_area_setup_needed = true;
}
inst->direct_to_font = init_ucs(&inst->ucsdata,
conf_get_str(inst->conf, CONF_line_codepage),
conf_get_bool(inst->conf, CONF_utf8_override),
inst->fonts[0]->public_charset,
conf_get_int(inst->conf, CONF_vtmode));
inst->drawtype = inst->fonts[0]->preferred_drawtype;
return NULL;
}
#if GTK_CHECK_VERSION(3,0,0)
struct find_app_menu_bar_ctx {
GtkWidget *area, *menubar;
};
static void find_app_menu_bar(GtkWidget *widget, gpointer data)
{
struct find_app_menu_bar_ctx *ctx = (struct find_app_menu_bar_ctx *)data;
if (widget != ctx->area && GTK_IS_MENU_BAR(widget))
ctx->menubar = widget;
}
#endif
static void compute_geom_hints(GtkFrontend *inst, GdkGeometry *geom)
{
/*
* Unused fields in geom.
*/
geom->max_width = geom->max_height = -1;
geom->min_aspect = geom->max_aspect = 0;
/*
* Set up the geometry fields we care about, with reference to
* just the drawing area. We'll correct for other widgets in a
* moment.
*/
geom->min_width = inst->font_width + 2*inst->window_border;
geom->min_height = inst->font_height + 2*inst->window_border;
geom->base_width = 2*inst->window_border;
geom->base_height = 2*inst->window_border;
geom->width_inc = inst->font_width;
geom->height_inc = inst->font_height;
/*
* If we've got a scrollbar visible, then we must include its
* width as part of the base and min width, and also ensure that
* our window's minimum height is at least the height required by
* the scrollbar.
*
* In the latter case, we must also take care to arrange that
* (geom->min_height - geom->base_height) is an integer multiple of
* geom->height_inc, because if it's not, then some window managers
* (we know of xfwm4) get confused, with the effect that they
* resize our window to a height based on min_height instead of
* base_height, which we then round down and the window ends up
* too short.
*/
if (inst->sbar_visible) {
GtkRequisition req;
int min_sb_height;
#if GTK_CHECK_VERSION(3,0,0)
gtk_widget_get_preferred_size(inst->sbar, &req, NULL);
#else
gtk_widget_size_request(inst->sbar, &req);
#endif
/* Compute rounded-up scrollbar height. */
min_sb_height = req.height;
min_sb_height += geom->height_inc - 1;
min_sb_height -= ((min_sb_height - geom->base_height%geom->height_inc)
% geom->height_inc);
geom->min_width += req.width;
geom->base_width += req.width;
if (geom->min_height < min_sb_height)
geom->min_height = min_sb_height;
}
#if GTK_CHECK_VERSION(3,0,0)
/*
* And if we're running a main-gtk-application.c based program and
* GtkApplicationWindow has given us a menu bar inside the window,
* then we must take that into account as well.
*
* In its unbounded wisdom, GtkApplicationWindow doesn't actually
* give us a direct function call to _find_ the menu bar widget.
* Fortunately, we can find it by enumerating the children of the
* top-level window and looking for one we didn't put there
* ourselves.
*/
{
struct find_app_menu_bar_ctx ctx[1];
ctx->area = inst->area;
ctx->menubar = NULL;
gtk_container_foreach(GTK_CONTAINER(inst->window),
find_app_menu_bar, ctx);
if (ctx->menubar) {
GtkRequisition req;
int min_menu_width;
gtk_widget_get_preferred_size(ctx->menubar, NULL, &req);
/*
* This time, the height adjustment is easy (the menu bar
* sits above everything), but we have to take care with
* the _width_ to ensure we keep min_width and base_width
* congruent modulo width_inc.
*/
geom->min_height += req.height;
geom->base_height += req.height;
min_menu_width = req.width;
min_menu_width += geom->width_inc - 1;
min_menu_width -=
((min_menu_width - geom->base_width%geom->width_inc)
% geom->width_inc);
if (geom->min_width < min_menu_width)
geom->min_width = min_menu_width;
}
}
#endif
}
void set_geom_hints(GtkFrontend *inst)
{
/*
* 2021-12-20: I've found that on Ubuntu 20.04 Wayland (using GTK
* 3.24.20), setting geometry hints causes the window size to come
* out wrong. As far as I can tell, that's because the GDK Wayland
* backend internally considers windows to be a lot larger than
* their obvious display size (*even* considering visible window
* furniture like title bars), with an extra margin on every side
* to account for surrounding effects like shadows. And the
* geometry hints like base size and resize increment are applied
* to that larger size rather than the more obvious 'client area'
* size. So when we ask for a window of exactly the size we want,
* it gets modified by GDK based on the geometry hints, but
* applying this extra margin, which causes the size to be a
* little bit too small.
*
* I don't know how you can sensibly find out the size of that
* margin. If I did, I could account for it in the geometry hints.
* But I also see that gtk_window_set_geometry_hints is removed in
* GTK 4, which suggests that probably doing a lot of hard work to
* fix this is not the way forward.
*
* So instead, I simply avoid setting geometry hints at all on any
* GDK backend other than X11, and hopefully that's a workaround.
*/
#if GTK_CHECK_VERSION(3,0,0) && !defined NOT_X_WINDOWS
if (!GDK_IS_X11_DISPLAY(gdk_display_get_default()))
return;
#endif
const struct BackendVtable *vt;
GdkGeometry geom;
gint flags = GDK_HINT_MIN_SIZE | GDK_HINT_BASE_SIZE | GDK_HINT_RESIZE_INC;
compute_geom_hints(inst, &geom);
#if GTK_CHECK_VERSION(2,0,0)
if (inst->gotpos)
flags |= GDK_HINT_USER_POS;
#endif
vt = backend_vt_from_proto(conf_get_int(inst->conf, CONF_protocol));
if (vt && vt->flags & BACKEND_RESIZE_FORBIDDEN) {
/* Window resizing forbidden. Set both minimum and maximum
* dimensions to be the initial size. */
geom.min_width = geom.base_width + geom.width_inc * inst->width;
geom.min_height = geom.base_height + geom.height_inc * inst->height;
geom.max_width = geom.min_width;
geom.max_height = geom.min_height;
flags |= GDK_HINT_MAX_SIZE;
}
gtk_window_set_geometry_hints(GTK_WINDOW(inst->window),
NULL, &geom, flags);
}
#if GTK_CHECK_VERSION(2,0,0)
static void compute_whole_window_size(GtkFrontend *inst,
int wchars, int hchars,
int *wpix, int *hpix)
{
GdkGeometry geom;
compute_geom_hints(inst, &geom);
if (wpix) *wpix = geom.base_width + wchars * geom.width_inc;
if (hpix) *hpix = geom.base_height + hchars * geom.height_inc;
}
#endif
void clear_scrollback_menuitem(GtkMenuItem *item, gpointer data)
{
GtkFrontend *inst = (GtkFrontend *)data;
term_clrsb(inst->term);
}
void reset_terminal_menuitem(GtkMenuItem *item, gpointer data)
{
GtkFrontend *inst = (GtkFrontend *)data;
term_pwron(inst->term, true);
if (inst->ldisc)
ldisc_echoedit_update(inst->ldisc);
}
void copy_clipboard_menuitem(GtkMenuItem *item, gpointer data)
{
GtkFrontend *inst = (GtkFrontend *)data;
static const int clips[] = { MENU_CLIPBOARD };
term_request_copy(inst->term, clips, lenof(clips));
}
void paste_clipboard_menuitem(GtkMenuItem *item, gpointer data)
{
GtkFrontend *inst = (GtkFrontend *)data;
term_request_paste(inst->term, MENU_CLIPBOARD);
}
void copy_all_menuitem(GtkMenuItem *item, gpointer data)
{
GtkFrontend *inst = (GtkFrontend *)data;
static const int clips[] = { COPYALL_CLIPBOARDS };
term_copyall(inst->term, clips, lenof(clips));
}
void special_menuitem(GtkMenuItem *item, gpointer data)
{
GtkFrontend *inst = (GtkFrontend *)data;
SessionSpecial *sc = g_object_get_data(G_OBJECT(item), "user-data");
if (inst->backend)
backend_special(inst->backend, sc->code, sc->arg);
}
void about_menuitem(GtkMenuItem *item, gpointer data)
{
GtkFrontend *inst = (GtkFrontend *)data;
about_box(inst->window);
}
void event_log_menuitem(GtkMenuItem *item, gpointer data)
{
GtkFrontend *inst = (GtkFrontend *)data;
showeventlog(inst->eventlogstuff, inst->window);
}
void setup_clipboards(GtkFrontend *inst, Terminal *term, Conf *conf)
{
assert(term->mouse_select_clipboards[0] == CLIP_LOCAL);
term->n_mouse_select_clipboards = 1;
term->mouse_select_clipboards[
term->n_mouse_select_clipboards++] = MOUSE_SELECT_CLIPBOARD;
if (conf_get_bool(conf, CONF_mouseautocopy)) {
term->mouse_select_clipboards[
term->n_mouse_select_clipboards++] = CLIP_CLIPBOARD;
}
set_clipboard_atom(inst, CLIP_CUSTOM_1, GDK_NONE);
set_clipboard_atom(inst, CLIP_CUSTOM_2, GDK_NONE);
set_clipboard_atom(inst, CLIP_CUSTOM_3, GDK_NONE);
switch (conf_get_int(conf, CONF_mousepaste)) {
case CLIPUI_IMPLICIT:
term->mouse_paste_clipboard = MOUSE_PASTE_CLIPBOARD;
break;
case CLIPUI_EXPLICIT:
term->mouse_paste_clipboard = CLIP_CLIPBOARD;
break;
case CLIPUI_CUSTOM:
term->mouse_paste_clipboard = CLIP_CUSTOM_1;
set_clipboard_atom(inst, CLIP_CUSTOM_1,
gdk_atom_intern(
conf_get_str(conf, CONF_mousepaste_custom),
false));
break;
default:
term->mouse_paste_clipboard = CLIP_NULL;
break;
}
if (conf_get_int(conf, CONF_ctrlshiftins) == CLIPUI_CUSTOM) {
GdkAtom atom = gdk_atom_intern(
conf_get_str(conf, CONF_ctrlshiftins_custom), false);
struct clipboard_state *state = clipboard_from_atom(inst, atom);
if (state) {
inst->clipboard_ctrlshiftins = state->clipboard;
} else {
inst->clipboard_ctrlshiftins = CLIP_CUSTOM_2;
set_clipboard_atom(inst, CLIP_CUSTOM_2, atom);
}
}
if (conf_get_int(conf, CONF_ctrlshiftcv) == CLIPUI_CUSTOM) {
GdkAtom atom = gdk_atom_intern(
conf_get_str(conf, CONF_ctrlshiftcv_custom), false);
struct clipboard_state *state = clipboard_from_atom(inst, atom);
if (state) {
inst->clipboard_ctrlshiftins = state->clipboard;
} else {
inst->clipboard_ctrlshiftcv = CLIP_CUSTOM_3;
set_clipboard_atom(inst, CLIP_CUSTOM_3, atom);
}
}
}
struct after_change_settings_dialog_ctx {
GtkFrontend *inst;
Conf *newconf;
};
static void after_change_settings_dialog(void *vctx, int retval);
void change_settings_menuitem(GtkMenuItem *item, gpointer data)
{
GtkFrontend *inst = (GtkFrontend *)data;
struct after_change_settings_dialog_ctx *ctx;
GtkWidget *dialog;
char *title;
if (find_and_raise_dialog(inst, DIALOG_SLOT_RECONFIGURE))
return;
title = dupcat(appname, " Reconfiguration");
ctx = snew(struct after_change_settings_dialog_ctx);
ctx->inst = inst;
ctx->newconf = conf_copy(inst->conf);
term_pre_reconfig(inst->term, ctx->newconf);
dialog = create_config_box(
title, ctx->newconf, true,
inst->backend ? backend_cfg_info(inst->backend) : 0,
after_change_settings_dialog, ctx);
register_dialog(&inst->seat, DIALOG_SLOT_RECONFIGURE, dialog);
sfree(title);
}
static void after_change_settings_dialog(void *vctx, int retval)
{
struct after_change_settings_dialog_ctx ctx =
*(struct after_change_settings_dialog_ctx *)vctx;
GtkFrontend *inst = ctx.inst;
Conf *oldconf = inst->conf, *newconf = ctx.newconf;
bool need_size;
sfree(vctx); /* we've copied this already */
unregister_dialog(&inst->seat, DIALOG_SLOT_RECONFIGURE);
if (retval > 0) {
inst->conf = newconf;
/* Pass new config data to the logging module */
log_reconfig(inst->logctx, inst->conf);
/*
* Flush the line discipline's edit buffer in the case
* where local editing has just been disabled.
*/
if (inst->ldisc) {
ldisc_configure(inst->ldisc, inst->conf);
ldisc_echoedit_update(inst->ldisc);
}
/* Pass new config data to the terminal */
term_reconfig(inst->term, inst->conf);
setup_clipboards(inst, inst->term, inst->conf);
/* Pass new config data to the back end */
if (inst->backend)
backend_reconfig(inst->backend, inst->conf);
cache_conf_values(inst);
need_size = false;
/*
* If the scrollbar needs to be shown, hidden, or moved
* from one end to the other of the window, do so now.
*/
if (conf_get_bool(oldconf, CONF_scrollbar) !=
conf_get_bool(newconf, CONF_scrollbar)) {
show_scrollbar(inst, conf_get_bool(newconf, CONF_scrollbar));
need_size = true;
}
if (conf_get_bool(oldconf, CONF_scrollbar_on_left) !=
conf_get_bool(newconf, CONF_scrollbar_on_left)) {
gtk_box_reorder_child(inst->hbox, inst->sbar,
conf_get_bool(newconf, CONF_scrollbar_on_left)
? 0 : 1);
}
/*
* Redo the whole tangled fonts and Unicode mess if
* necessary.
*/
if (strcmp(conf_get_fontspec(oldconf, CONF_font)->name,
conf_get_fontspec(newconf, CONF_font)->name) ||
strcmp(conf_get_fontspec(oldconf, CONF_boldfont)->name,
conf_get_fontspec(newconf, CONF_boldfont)->name) ||
strcmp(conf_get_fontspec(oldconf, CONF_widefont)->name,
conf_get_fontspec(newconf, CONF_widefont)->name) ||
strcmp(conf_get_fontspec(oldconf, CONF_wideboldfont)->name,
conf_get_fontspec(newconf, CONF_wideboldfont)->name) ||
strcmp(conf_get_str(oldconf, CONF_line_codepage),
conf_get_str(newconf, CONF_line_codepage)) ||
conf_get_bool(oldconf, CONF_utf8_override) !=
conf_get_bool(newconf, CONF_utf8_override) ||
conf_get_int(oldconf, CONF_vtmode) !=
conf_get_int(newconf, CONF_vtmode) ||
conf_get_bool(oldconf, CONF_shadowbold) !=
conf_get_bool(newconf, CONF_shadowbold) ||
conf_get_int(oldconf, CONF_shadowboldoffset) !=
conf_get_int(newconf, CONF_shadowboldoffset)) {
char *errmsg = setup_fonts_ucs(inst);
if (errmsg) {
char *msgboxtext =
dupprintf("Could not change fonts in terminal window: %s\n",
errmsg);
create_message_box(
inst->window, "Font setup error", msgboxtext,
string_width("Could not change fonts in terminal window:"),
false, &buttons_ok, trivial_post_dialog_fn, NULL);
sfree(msgboxtext);
sfree(errmsg);
} else {
need_size = true;
}
}
/*
* Resize the window.
*/
if (conf_get_int(oldconf, CONF_width) !=
conf_get_int(newconf, CONF_width) ||
conf_get_int(oldconf, CONF_height) !=
conf_get_int(newconf, CONF_height) ||
conf_get_int(oldconf, CONF_window_border) !=
conf_get_int(newconf, CONF_window_border) ||
need_size) {
set_geom_hints(inst);
request_resize_internal(inst, false,
conf_get_int(newconf, CONF_width),
conf_get_int(newconf, CONF_height));
} else {
/*
* The above will have caused a call to term_size() for
* us if it happened. If the user has fiddled with only
* the scrollback size, the above will not have
* happened and we will need an explicit term_size()
* here.
*/
if (conf_get_int(oldconf, CONF_savelines) !=
conf_get_int(newconf, CONF_savelines))
term_size(inst->term, inst->term->rows, inst->term->cols,
conf_get_int(newconf, CONF_savelines));
}
term_invalidate(inst->term);
/*
* We do an explicit full redraw here to ensure the window
* border has been redrawn as well as the text area.
*/
gtk_widget_queue_draw(inst->area);
conf_free(oldconf);
} else {
conf_free(newconf);
}
}
static void change_font_size(GtkFrontend *inst, int increment)
{
static const int conf_keys[lenof(inst->fonts)] = {
CONF_font, CONF_boldfont, CONF_widefont, CONF_wideboldfont,
};
FontSpec *oldfonts[lenof(inst->fonts)];
FontSpec *newfonts[lenof(inst->fonts)];
char *errmsg = NULL;
int i;
for (i = 0; i < lenof(newfonts); i++)
oldfonts[i] = newfonts[i] = NULL;
for (i = 0; i < lenof(inst->fonts); i++) {
if (inst->fonts[i]) {
char *newname = unifont_size_increment(inst->fonts[i], increment);
if (!newname)
goto cleanup;
newfonts[i] = fontspec_new(newname);
sfree(newname);
}
}
for (i = 0; i < lenof(newfonts); i++) {
if (newfonts[i]) {
oldfonts[i] = fontspec_copy(
conf_get_fontspec(inst->conf, conf_keys[i]));
conf_set_fontspec(inst->conf, conf_keys[i], newfonts[i]);
}
}
errmsg = setup_fonts_ucs(inst);
if (errmsg)
goto cleanup;
/* Success, so suppress putting everything back */
for (i = 0; i < lenof(newfonts); i++) {
if (oldfonts[i]) {
fontspec_free(oldfonts[i]);
oldfonts[i] = NULL;
}
}
set_geom_hints(inst);
request_resize_internal(inst, false, conf_get_int(inst->conf, CONF_width),
conf_get_int(inst->conf, CONF_height));
term_invalidate(inst->term);
gtk_widget_queue_draw(inst->area);
cleanup:
for (i = 0; i < lenof(oldfonts); i++) {
if (oldfonts[i]) {
conf_set_fontspec(inst->conf, conf_keys[i], oldfonts[i]);
fontspec_free(oldfonts[i]);
}
if (newfonts[i])
fontspec_free(newfonts[i]);
}
sfree(errmsg);
}
void dup_session_menuitem(GtkMenuItem *item, gpointer gdata)
{
GtkFrontend *inst = (GtkFrontend *)gdata;
launch_duplicate_session(inst->conf);
}
void new_session_menuitem(GtkMenuItem *item, gpointer data)
{
launch_new_session();
}
void restart_session_menuitem(GtkMenuItem *item, gpointer data)
{
GtkFrontend *inst = (GtkFrontend *)data;
if (!inst->backend) {
logevent(inst->logctx, "----- Session restarted -----");
term_pwron(inst->term, false);
start_backend(inst);
inst->exited = false;
}
}
void saved_session_menuitem(GtkMenuItem *item, gpointer data)
{
char *str = (char *)g_object_get_data(G_OBJECT(item), "user-data");
launch_saved_session(str);
}
void saved_session_freedata(GtkMenuItem *item, gpointer data)
{
char *str = (char *)g_object_get_data(G_OBJECT(item), "user-data");
sfree(str);
}
void app_menu_action(GtkFrontend *frontend, enum MenuAction action)
{
GtkFrontend *inst = (GtkFrontend *)frontend;
switch (action) {
case MA_COPY:
copy_clipboard_menuitem(NULL, inst);
break;
case MA_PASTE:
paste_clipboard_menuitem(NULL, inst);
break;
case MA_COPY_ALL:
copy_all_menuitem(NULL, inst);
break;
case MA_DUPLICATE_SESSION:
dup_session_menuitem(NULL, inst);
break;
case MA_RESTART_SESSION:
restart_session_menuitem(NULL, inst);
break;
case MA_CHANGE_SETTINGS:
change_settings_menuitem(NULL, inst);
break;
case MA_CLEAR_SCROLLBACK:
clear_scrollback_menuitem(NULL, inst);
break;
case MA_RESET_TERMINAL:
reset_terminal_menuitem(NULL, inst);
break;
case MA_EVENT_LOG:
event_log_menuitem(NULL, inst);
break;
}
}
static void update_savedsess_menu(GtkMenuItem *menuitem, gpointer data)
{
GtkFrontend *inst = (GtkFrontend *)data;
struct sesslist sesslist;
int i;
gtk_container_foreach(GTK_CONTAINER(inst->sessionsmenu),
(GtkCallback)gtk_widget_destroy, NULL);
get_sesslist(&sesslist, true);
/* skip sesslist.sessions[0] == Default Settings */
for (i = 1; i < sesslist.nsessions; i++) {
GtkWidget *menuitem =
gtk_menu_item_new_with_label(sesslist.sessions[i]);
gtk_container_add(GTK_CONTAINER(inst->sessionsmenu), menuitem);
gtk_widget_show(menuitem);
g_object_set_data(G_OBJECT(menuitem), "user-data",
dupstr(sesslist.sessions[i]));
g_signal_connect(G_OBJECT(menuitem), "activate",
G_CALLBACK(saved_session_menuitem),
inst);
g_signal_connect(G_OBJECT(menuitem), "destroy",
G_CALLBACK(saved_session_freedata),
inst);
}
if (sesslist.nsessions <= 1) {
GtkWidget *menuitem =
gtk_menu_item_new_with_label("(No sessions)");
gtk_widget_set_sensitive(menuitem, false);
gtk_container_add(GTK_CONTAINER(inst->sessionsmenu), menuitem);
gtk_widget_show(menuitem);
}
get_sesslist(&sesslist, false); /* free up */
}
void set_window_icon(GtkWidget *window, const char *const *const *icon,
int n_icon)
{
#if GTK_CHECK_VERSION(2,0,0)
GList *iconlist;
int n;
#else
GdkPixmap *iconpm;
GdkBitmap *iconmask;
#endif
if (!n_icon)
return;
gtk_widget_realize(window);
#if GTK_CHECK_VERSION(2,0,0)
gtk_window_set_icon(GTK_WINDOW(window),
gdk_pixbuf_new_from_xpm_data((const gchar **)icon[0]));
#else
iconpm = gdk_pixmap_create_from_xpm_d(gtk_widget_get_window(window),
&iconmask, NULL, (gchar **)icon[0]);
gdk_window_set_icon(gtk_widget_get_window(window), NULL, iconpm, iconmask);
#endif
#if GTK_CHECK_VERSION(2,0,0)
iconlist = NULL;
for (n = 0; n < n_icon; n++) {
iconlist =
g_list_append(iconlist,
gdk_pixbuf_new_from_xpm_data((const gchar **)
icon[n]));
}
gtk_window_set_icon_list(GTK_WINDOW(window), iconlist);
#endif
}
static void free_special_cmd(gpointer data) { sfree(data); }
static void gtk_seat_update_specials_menu(Seat *seat)
{
GtkFrontend *inst = container_of(seat, GtkFrontend, seat);
const SessionSpecial *specials;
if (inst->backend)
specials = backend_get_specials(inst->backend);
else
specials = NULL;
/* I believe this disposes of submenus too. */
gtk_container_foreach(GTK_CONTAINER(inst->specialsmenu),
(GtkCallback)gtk_widget_destroy, NULL);
if (specials) {
int i;
GtkWidget *menu = inst->specialsmenu;
/* A lame "stack" for submenus that will do for now. */
GtkWidget *saved_menu = NULL;
int nesting = 1;
for (i = 0; nesting > 0; i++) {
GtkWidget *menuitem = NULL;
switch (specials[i].code) {
case SS_SUBMENU:
assert (nesting < 2);
saved_menu = menu; /* XXX lame stacking */
menu = gtk_menu_new();
menuitem = gtk_menu_item_new_with_label(specials[i].name);
gtk_menu_item_set_submenu(GTK_MENU_ITEM(menuitem), menu);
gtk_container_add(GTK_CONTAINER(saved_menu), menuitem);
gtk_widget_show(menuitem);
menuitem = NULL;
nesting++;
break;
case SS_EXITMENU:
nesting--;
if (nesting) {
menu = saved_menu; /* XXX lame stacking */
saved_menu = NULL;
}
break;
case SS_SEP:
menuitem = gtk_menu_item_new();
break;
default: {
menuitem = gtk_menu_item_new_with_label(specials[i].name);
SessionSpecial *sc = snew(SessionSpecial);
*sc = specials[i]; /* structure copy */
g_object_set_data_full(G_OBJECT(menuitem), "user-data",
sc, free_special_cmd);
g_signal_connect(G_OBJECT(menuitem), "activate",
G_CALLBACK(special_menuitem), inst);
break;
}
}
if (menuitem) {
gtk_container_add(GTK_CONTAINER(menu), menuitem);
gtk_widget_show(menuitem);
}
}
gtk_widget_show(inst->specialsitem1);
gtk_widget_show(inst->specialsitem2);
} else {
gtk_widget_hide(inst->specialsitem1);
gtk_widget_hide(inst->specialsitem2);
}
}
static void start_backend(GtkFrontend *inst)
{
const struct BackendVtable *vt;
char *error, *realhost;
inst->cmdline_get_passwd_state = cmdline_get_passwd_input_state_new;
vt = select_backend(inst->conf);
seat_set_trust_status(&inst->seat, true);
error = backend_init(vt, &inst->seat, &inst->backend,
inst->logctx, inst->conf,
conf_get_str(inst->conf, CONF_host),
conf_get_int(inst->conf, CONF_port),
&realhost,
conf_get_bool(inst->conf, CONF_tcp_nodelay),
conf_get_bool(inst->conf, CONF_tcp_keepalives));
if (error) {
if (cmdline_tooltype & TOOLTYPE_NONNETWORK) {
/* Special case for pterm. */
seat_connection_fatal(&inst->seat,
"Unable to open terminal:\n%s",
error);
} else {
seat_connection_fatal(&inst->seat,
"Unable to open connection to %s:\n%s",
conf_dest(inst->conf), error);
}
sfree(error);
inst->exited = true;
return;
}
term_setup_window_titles(inst->term, realhost);
sfree(realhost);
term_provide_backend(inst->term, inst->backend);
inst->ldisc = ldisc_create(inst->conf, inst->term, inst->backend,
&inst->seat);
gtk_widget_set_sensitive(inst->restartitem, false);
}
#if GTK_CHECK_VERSION(2,0,0)
static void get_monitor_geometry(GtkWidget *widget, GdkRectangle *geometry)
{
#if GTK_CHECK_VERSION(3,4,0)
GdkDisplay *display = gtk_widget_get_display(widget);
GdkWindow *gdkwindow = gtk_widget_get_window(widget);
# if GTK_CHECK_VERSION(3,22,0)
GdkMonitor *monitor;
if (gdkwindow)
monitor = gdk_display_get_monitor_at_window(display, gdkwindow);
else
monitor = gdk_display_get_monitor(display, 0);
gdk_monitor_get_geometry(monitor, geometry);
# else
GdkScreen *screen = gdk_display_get_default_screen(display);
gint monitor_num = gdk_screen_get_monitor_at_window(screen, gdkwindow);
gdk_screen_get_monitor_geometry(screen, monitor_num, geometry);
# endif
#else
geometry->x = geometry->y = 0;
geometry->width = gdk_screen_width();
geometry->height = gdk_screen_height();
#endif
}
#endif
static const TermWinVtable gtk_termwin_vt = {
.setup_draw_ctx = gtkwin_setup_draw_ctx,
.draw_text = gtkwin_draw_text,
.draw_cursor = gtkwin_draw_cursor,
.draw_trust_sigil = gtkwin_draw_trust_sigil,
.char_width = gtkwin_char_width,
.free_draw_ctx = gtkwin_free_draw_ctx,
.set_cursor_pos = gtkwin_set_cursor_pos,
.set_raw_mouse_mode = gtkwin_set_raw_mouse_mode,
.set_raw_mouse_mode_pointer = gtkwin_set_raw_mouse_mode_pointer,
.set_scrollbar = gtkwin_set_scrollbar,
.bell = gtkwin_bell,
.clip_write = gtkwin_clip_write,
.clip_request_paste = gtkwin_clip_request_paste,
.refresh = gtkwin_refresh,
.request_resize = gtkwin_request_resize,
.set_title = gtkwin_set_title,
.set_icon_title = gtkwin_set_icon_title,
.set_minimised = gtkwin_set_minimised,
.set_maximised = gtkwin_set_maximised,
.move = gtkwin_move,
.set_zorder = gtkwin_set_zorder,
.palette_set = gtkwin_palette_set,
.palette_get_overrides = gtkwin_palette_get_overrides,
.unthrottle = gtkwin_unthrottle,
};
void new_session_window(Conf *conf, const char *geometry_string)
{
GtkFrontend *inst;
prepare_session(conf);
/*
* Create an instance structure and initialise to zeroes
*/
inst = snew(GtkFrontend);
memset(inst, 0, sizeof(*inst));
#ifdef JUST_USE_GTK_CLIPBOARD_UTF8
inst->cdi_headtail.next = inst->cdi_headtail.prev = &inst->cdi_headtail;
#endif
inst->alt_keycode = -1; /* this one needs _not_ to be zero */
inst->busy_status = BUSY_NOT;
inst->conf = conf;
inst->wintitle = inst->icontitle = NULL;
inst->drawtype = DRAWTYPE_DEFAULT;
#if GTK_CHECK_VERSION(3,4,0)
inst->cumulative_vscroll = 0.0;
inst->cumulative_hscroll = 0.0;
#endif
inst->drawing_area_setup_needed = true;
inst->termwin.vt = &gtk_termwin_vt;
inst->seat.vt = &gtk_seat_vt;
inst->logpolicy.vt = &gtk_logpolicy_vt;
#ifndef NOT_X_WINDOWS
inst->disp = get_x11_display();
if (geometry_string) {
int flags, x, y;
unsigned int w, h;
flags = XParseGeometry(geometry_string, &x, &y, &w, &h);
if (flags & WidthValue)
conf_set_int(conf, CONF_width, w);
if (flags & HeightValue)
conf_set_int(conf, CONF_height, h);
if (flags & (XValue | YValue)) {
inst->xpos = x;
inst->ypos = y;
inst->gotpos = true;
inst->gravity = ((flags & XNegative ? 1 : 0) |
(flags & YNegative ? 2 : 0));
}
}
#endif
if (!compound_text_atom)
compound_text_atom = gdk_atom_intern("COMPOUND_TEXT", false);
if (!utf8_string_atom)
utf8_string_atom = gdk_atom_intern("UTF8_STRING", false);
if (!clipboard_atom)
clipboard_atom = gdk_atom_intern("CLIPBOARD", false);
inst->area = gtk_drawing_area_new();
gtk_widget_set_name(GTK_WIDGET(inst->area), "drawing-area");
{
char *errmsg = setup_fonts_ucs(inst);
if (errmsg) {
window_setup_error(errmsg);
sfree(errmsg);
gtk_widget_destroy(inst->area);
sfree(inst);
return;
}
}
#if GTK_CHECK_VERSION(2,0,0)
inst->imc = gtk_im_multicontext_new();
#endif
inst->window = make_gtk_toplevel_window(inst);
gtk_widget_set_name(GTK_WIDGET(inst->window), "top-level");
{
const char *winclass = conf_get_str(inst->conf, CONF_winclass);
if (*winclass) {
#if GTK_CHECK_VERSION(3,22,0)
#ifndef NOT_X_WINDOWS
GdkWindow *gdkwin;
gtk_widget_realize(GTK_WIDGET(inst->window));
gdkwin = gtk_widget_get_window(GTK_WIDGET(inst->window));
if (inst->disp && gdk_window_ensure_native(gdkwin)) {
XClassHint *xch = XAllocClassHint();
xch->res_name = (char *)winclass;
xch->res_class = (char *)winclass;
XSetClassHint(inst->disp, GDK_WINDOW_XID(gdkwin), xch);
XFree(xch);
}
#endif
/*
* If we do have NOT_X_WINDOWS set, then we don't have any
* function in GTK 3.22 equivalent to the above. But then,
* surely in that situation the deprecated
* gtk_window_set_wmclass wouldn't have done anything
* meaningful in previous GTKs either.
*/
#else
gtk_window_set_wmclass(GTK_WINDOW(inst->window),
winclass, winclass);
#endif
}
}
#if GTK_CHECK_VERSION(2,0,0)
{
const BackendVtable *vt = select_backend(inst->conf);
if (vt && vt->flags & BACKEND_RESIZE_FORBIDDEN)
gtk_window_set_resizable(GTK_WINDOW(inst->window), false);
}
#endif
inst->width = conf_get_int(inst->conf, CONF_width);
inst->height = conf_get_int(inst->conf, CONF_height);
cache_conf_values(inst);
init_clipboard(inst);
inst->sbar_adjust = GTK_ADJUSTMENT(gtk_adjustment_new(0,0,0,0,0,0));
inst->sbar = gtk_vscrollbar_new(inst->sbar_adjust);
inst->hbox = GTK_BOX(gtk_hbox_new(false, 0));
/*
* We always create the scrollbar; it remains invisible if
* unwanted, so we can pop it up quickly if it suddenly becomes
* desirable.
*/
if (conf_get_bool(inst->conf, CONF_scrollbar_on_left))
gtk_box_pack_start(inst->hbox, inst->sbar, false, false, 0);
gtk_box_pack_start(inst->hbox, inst->area, true, true, 0);
if (!conf_get_bool(inst->conf, CONF_scrollbar_on_left))
gtk_box_pack_start(inst->hbox, inst->sbar, false, false, 0);
gtk_container_add(GTK_CONTAINER(inst->window), GTK_WIDGET(inst->hbox));
gtk_widget_show(inst->area);
show_scrollbar(inst, conf_get_bool(inst->conf, CONF_scrollbar));
gtk_widget_show(GTK_WIDGET(inst->hbox));
/*
* We must call gtk_widget_realize before setting up the geometry
* hints, so that GtkApplicationWindow will have actually created
* its menu bar (if it's going to) and hence compute_geom_hints
* can find it to take its size into account.
*/
gtk_widget_realize(inst->window);
set_geom_hints(inst);
#if GTK_CHECK_VERSION(3,0,0)
{
int wp, hp;
compute_whole_window_size(inst, inst->width, inst->height, &wp, &hp);
gtk_window_set_default_size(GTK_WINDOW(inst->window), wp, hp);
}
#else
{
int w = inst->font_width * inst->width + 2*inst->window_border;
int h = inst->font_height * inst->height + 2*inst->window_border;
#if GTK_CHECK_VERSION(2,0,0)
gtk_widget_set_size_request(inst->area, w, h);
#else
gtk_drawing_area_size(GTK_DRAWING_AREA(inst->area), w, h);
#endif
}
#endif
#if GTK_CHECK_VERSION(2,0,0)
if (inst->gotpos) {
static const GdkGravity gravities[] = {
GDK_GRAVITY_NORTH_WEST,
GDK_GRAVITY_NORTH_EAST,
GDK_GRAVITY_SOUTH_WEST,
GDK_GRAVITY_SOUTH_EAST,
};
int x = inst->xpos, y = inst->ypos;
int wp, hp;
GdkRectangle monitor_geometry;
compute_whole_window_size(inst, inst->width, inst->height, &wp, &hp);
get_monitor_geometry(GTK_WIDGET(inst->window), &monitor_geometry);
if (inst->gravity & 1) x += (monitor_geometry.width - wp);
if (inst->gravity & 2) y += (monitor_geometry.height - hp);
gtk_window_set_gravity(GTK_WINDOW(inst->window),
gravities[inst->gravity & 3]);
gtk_window_move(GTK_WINDOW(inst->window), x, y);
}
#else
if (inst->gotpos) {
int x = inst->xpos, y = inst->ypos;
GtkRequisition req;
gtk_widget_size_request(GTK_WIDGET(inst->window), &req);
if (inst->gravity & 1) x += gdk_screen_width() - req.width;
if (inst->gravity & 2) y += gdk_screen_height() - req.height;
gtk_window_set_position(GTK_WINDOW(inst->window), GTK_WIN_POS_NONE);
gtk_widget_set_uposition(GTK_WIDGET(inst->window), x, y);
}
#endif
g_signal_connect(G_OBJECT(inst->window), "destroy",
G_CALLBACK(destroy), inst);
g_signal_connect(G_OBJECT(inst->window), "delete_event",
G_CALLBACK(delete_window), inst);
g_signal_connect(G_OBJECT(inst->window), "key_press_event",
G_CALLBACK(key_event), inst);
g_signal_connect(G_OBJECT(inst->window), "key_release_event",
G_CALLBACK(key_event), inst);
g_signal_connect(G_OBJECT(inst->window), "focus_in_event",
G_CALLBACK(focus_event), inst);
g_signal_connect(G_OBJECT(inst->window), "focus_out_event",
G_CALLBACK(focus_event), inst);
g_signal_connect(G_OBJECT(inst->area), "realize",
G_CALLBACK(area_realised), inst);
g_signal_connect(G_OBJECT(inst->area), "size_allocate",
G_CALLBACK(area_size_allocate), inst);
g_signal_connect(G_OBJECT(inst->window), "configure_event",
G_CALLBACK(window_configured), inst);
#if GTK_CHECK_VERSION(3,10,0)
g_signal_connect(G_OBJECT(inst->area), "configure_event",
G_CALLBACK(area_configured), inst);
#endif
#if GTK_CHECK_VERSION(3,0,0)
g_signal_connect(G_OBJECT(inst->area), "draw",
G_CALLBACK(draw_area), inst);
#else
g_signal_connect(G_OBJECT(inst->area), "expose_event",
G_CALLBACK(expose_area), inst);
#endif
g_signal_connect(G_OBJECT(inst->area), "button_press_event",
G_CALLBACK(button_event), inst);
g_signal_connect(G_OBJECT(inst->area), "button_release_event",
G_CALLBACK(button_event), inst);
#if GTK_CHECK_VERSION(2,0,0)
g_signal_connect(G_OBJECT(inst->area), "scroll_event",
G_CALLBACK(scroll_event), inst);
#endif
g_signal_connect(G_OBJECT(inst->area), "motion_notify_event",
G_CALLBACK(motion_event), inst);
#if GTK_CHECK_VERSION(2,0,0)
g_signal_connect(G_OBJECT(inst->imc), "commit",
G_CALLBACK(input_method_commit_event), inst);
#endif
if (conf_get_bool(inst->conf, CONF_scrollbar))
g_signal_connect(G_OBJECT(inst->sbar_adjust), "value_changed",
G_CALLBACK(scrollbar_moved), inst);
gtk_widget_add_events(GTK_WIDGET(inst->area),
GDK_KEY_PRESS_MASK | GDK_KEY_RELEASE_MASK |
GDK_BUTTON_PRESS_MASK | GDK_BUTTON_RELEASE_MASK |
GDK_POINTER_MOTION_MASK | GDK_BUTTON_MOTION_MASK
#if GTK_CHECK_VERSION(3,4,0)
| GDK_SMOOTH_SCROLL_MASK
#endif
);
set_window_icon(inst->window, main_icon, n_main_icon);
gtk_widget_show(inst->window);
set_window_background(inst);
/*
* Set up the Ctrl+rightclick context menu.
*/
{
GtkWidget *menuitem;
char *s;
inst->menu = gtk_menu_new();
#define MKMENUITEM(title, func) do \
{ \
menuitem = gtk_menu_item_new_with_label(title); \
gtk_container_add(GTK_CONTAINER(inst->menu), menuitem); \
gtk_widget_show(menuitem); \
g_signal_connect(G_OBJECT(menuitem), "activate", \
G_CALLBACK(func), inst); \
} while (0)
#define MKSUBMENU(title) do \
{ \
menuitem = gtk_menu_item_new_with_label(title); \
gtk_container_add(GTK_CONTAINER(inst->menu), menuitem); \
gtk_widget_show(menuitem); \
} while (0)
#define MKSEP() do \
{ \
menuitem = gtk_menu_item_new(); \
gtk_container_add(GTK_CONTAINER(inst->menu), menuitem); \
gtk_widget_show(menuitem); \
} while (0)
if (new_session)
MKMENUITEM("New Session...", new_session_menuitem);
MKMENUITEM("Restart Session", restart_session_menuitem);
inst->restartitem = menuitem;
gtk_widget_set_sensitive(inst->restartitem, false);
MKMENUITEM("Duplicate Session", dup_session_menuitem);
if (saved_sessions) {
inst->sessionsmenu = gtk_menu_new();
/* sessionsmenu will be updated when it's invoked */
/* XXX is this the right way to do dynamic menus in Gtk? */
MKMENUITEM("Saved Sessions", update_savedsess_menu);
gtk_menu_item_set_submenu(GTK_MENU_ITEM(menuitem),
inst->sessionsmenu);
}
MKSEP();
MKMENUITEM("Change Settings...", change_settings_menuitem);
MKSEP();
if (use_event_log)
MKMENUITEM("Event Log", event_log_menuitem);
MKSUBMENU("Special Commands");
inst->specialsmenu = gtk_menu_new();
gtk_menu_item_set_submenu(GTK_MENU_ITEM(menuitem), inst->specialsmenu);
inst->specialsitem1 = menuitem;
MKSEP();
inst->specialsitem2 = menuitem;
gtk_widget_hide(inst->specialsitem1);
gtk_widget_hide(inst->specialsitem2);
MKMENUITEM("Clear Scrollback", clear_scrollback_menuitem);
MKMENUITEM("Reset Terminal", reset_terminal_menuitem);
MKSEP();
MKMENUITEM("Copy to " CLIPNAME_EXPLICIT_OBJECT,
copy_clipboard_menuitem);
MKMENUITEM("Paste from " CLIPNAME_EXPLICIT_OBJECT,
paste_clipboard_menuitem);
MKMENUITEM("Copy All", copy_all_menuitem);
MKSEP();
s = dupcat("About ", appname);
MKMENUITEM(s, about_menuitem);
sfree(s);
#undef MKMENUITEM
#undef MKSUBMENU
#undef MKSEP
}
inst->textcursor = make_mouse_ptr(inst, GDK_XTERM);
inst->rawcursor = make_mouse_ptr(inst, GDK_LEFT_PTR);
inst->waitcursor = make_mouse_ptr(inst, GDK_WATCH);
inst->blankcursor = make_mouse_ptr(inst, -1);
inst->currcursor = inst->textcursor;
show_mouseptr(inst, true);
inst->eventlogstuff = eventlogstuff_new();
inst->term = term_init(inst->conf, &inst->ucsdata, &inst->termwin);
setup_clipboards(inst, inst->term, inst->conf);
inst->logctx = log_init(&inst->logpolicy, inst->conf);
term_provide_logctx(inst->term, inst->logctx);
term_size(inst->term, inst->height, inst->width,
conf_get_int(inst->conf, CONF_savelines));
#if GTK_CHECK_VERSION(2,0,0)
/* Delay this signal connection until after inst->term exists */
g_signal_connect(G_OBJECT(inst->window), "window_state_event",
G_CALLBACK(window_state_event), inst);
#endif
inst->exited = false;
start_backend(inst);
if (inst->ldisc) /* early backend failure might make this NULL already */
ldisc_echoedit_update(inst->ldisc); /* cause ldisc to notice changes */
}
static void gtk_seat_set_trust_status(Seat *seat, bool trusted)
{
GtkFrontend *inst = container_of(seat, GtkFrontend, seat);
term_set_trust_status(inst->term, trusted);
}
static bool gtk_seat_can_set_trust_status(Seat *seat)
{
return true;
}
static bool gtk_seat_get_cursor_position(Seat *seat, int *x, int *y)
{
GtkFrontend *inst = container_of(seat, GtkFrontend, seat);
if (inst->term) {
term_get_cursor_position(inst->term, x, y);
return true;
}
return false;
}
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