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Permit button-only file selectors.

Browse Source 
Instead of an edit box together with a Browse button that pops up a
sub-dialog, this is _just_ the browse button, only now it has a
user-defined title. I'm about to want to use this for loading CA
public keys from files.
This commit is contained in:
Simon Tatham 2022-05-01 08:39:49 +01:00
parent 259e877b92
commit 694d5184b7
3 changed files with 149 additions and 64 deletions
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31
dialog.h
View File

@ -369,6 +369,37 @@ struct dlgcontrol {
* This value _is_ expected to require freeing.
*/
char *title;
/*
* Reduce the file selector to just a single browse
* button.
*
* Normally, a file selector is used to set a config
* option that consists of a file name, so that that file
* will be read or written at run time. In that situation,
* it makes sense to have an edit box showing the
* currently selected file name, and a button to change it
* interactively.
*
* But occasionally a file selector is used to load a file
* _during_ configuration. For example, host CA public
* keys are entered directly into the configuration as
* strings, not stored by reference to a filename; but if
* you have one in a file, you want to be able to load it
* during the lifetime of the CA config box rather than
* awkwardly copy-pasting it. So in that case you just
* want a 'pop up a file chooser' button, and when that
* delivers a file name, you'll deal with it there and
* then and write some other thing (like the file's
* contents) into a nearby edit box.
*
* If you set this flag, then you may not call
* dlg_filesel_set on the file selector at all, because it
* doesn't store a filename. And you can only call
* dlg_filesel_get on it in the handler for EVENT_ACTION,
* which is what will be sent to you when the user has
* used it to choose a filename.
*/
bool just_button;
} fileselect;
struct { /* for CTRL_COLUMNS */
/* In this variant, `label' MUST be NULL. */

125
unix/dialog.c
View File

@ -74,6 +74,7 @@ struct uctrl {
guint entrysig;
guint textsig;
int nclicks;
const char *textvalue; /* temporary, for button-only file selectors */
};
struct dlgparam {
@ -869,8 +870,10 @@ void dlg_label_change(dlgcontrol *ctrl, dlgparam *dp, char const *text)
shortcut_highlight(uc->label, ctrl->editbox.shortcut);
break;
case CTRL_FILESELECT:
gtk_label_set_text(GTK_LABEL(uc->label), text);
shortcut_highlight(uc->label, ctrl->fileselect.shortcut);
if (uc->label) {
gtk_label_set_text(GTK_LABEL(uc->label), text);
shortcut_highlight(uc->label, ctrl->fileselect.shortcut);
}
break;
case CTRL_FONTSELECT:
gtk_label_set_text(GTK_LABEL(uc->label), text);
@ -901,8 +904,12 @@ Filename *dlg_filesel_get(dlgcontrol *ctrl, dlgparam *dp)
{
struct uctrl *uc = dlg_find_byctrl(dp, ctrl);
assert(uc->ctrl->type == CTRL_FILESELECT);
assert(uc->entry != NULL);
return filename_from_str(gtk_entry_get_text(GTK_ENTRY(uc->entry)));
if (!uc->entry) {
assert(uc->textvalue);
return filename_from_str(uc->textvalue);
} else {
return filename_from_str(gtk_entry_get_text(GTK_ENTRY(uc->entry)));
}
}
void dlg_fontsel_set(dlgcontrol *ctrl, dlgparam *dp, FontSpec *fs)
@ -1562,15 +1569,27 @@ static void droplist_selchange(GtkComboBox *combo, gpointer data)
#endif /* !GTK_CHECK_VERSION(2,4,0) */
static void filechoose_emit_value(struct dlgparam *dp, struct uctrl *uc,
const char *name)
{
if (uc->entry) {
gtk_entry_set_text(GTK_ENTRY(uc->entry), name);
} else {
uc->textvalue = name;
uc->ctrl->handler(uc->ctrl, dp, dp->data, EVENT_ACTION);
uc->textvalue = NULL;
}
}
#ifdef USE_GTK_FILE_CHOOSER_DIALOG
static void filechoose_response(GtkDialog *dialog, gint response,
gpointer data)
{
/* struct dlgparam *dp = (struct dlgparam *)data; */
struct dlgparam *dp = (struct dlgparam *)data;
struct uctrl *uc = g_object_get_data(G_OBJECT(dialog), "user-data");
if (response == GTK_RESPONSE_ACCEPT) {
gchar *name = gtk_file_chooser_get_filename(GTK_FILE_CHOOSER(dialog));
gtk_entry_set_text(GTK_ENTRY(uc->entry), name);
filechoose_emit_value(dp, uc, name);
g_free(name);
}
gtk_widget_destroy(GTK_WIDGET(dialog));
@ -1578,12 +1597,12 @@ static void filechoose_response(GtkDialog *dialog, gint response,
#else
static void filesel_ok(GtkButton *button, gpointer data)
{
/* struct dlgparam *dp = (struct dlgparam *)data; */
struct dlgparam *dp = (struct dlgparam *)data;
gpointer filesel = g_object_get_data(G_OBJECT(button), "user-data");
struct uctrl *uc = g_object_get_data(G_OBJECT(filesel), "user-data");
const char *name = gtk_file_selection_get_filename
(GTK_FILE_SELECTION(filesel));
gtk_entry_set_text(GTK_ENTRY(uc->entry), name);
filechoose_emit_value(dp, uc, name);
}
#endif
@ -2104,56 +2123,65 @@ GtkWidget *layout_ctrls(
case CTRL_FILESELECT:
case CTRL_FONTSELECT: {
GtkWidget *ww;
const char *browsebtn =
(ctrl->type == CTRL_FILESELECT ?
"Browse..." : "Change...");
gint percentages[] = { 75, 25 };
w = columns_new(4);
columns_set_cols(COLUMNS(w), 2, percentages);
if (!ctrl->fileselect.just_button) {
const char *browsebtn =
(ctrl->type == CTRL_FILESELECT ?
"Browse..." : "Change...");
if (ctrl->label) {
ww = gtk_label_new(ctrl->label);
columns_add(COLUMNS(w), ww, 0, 2);
columns_force_left_align(COLUMNS(w), ww);
gtk_widget_show(ww);
shortcut_add(scs, ww,
(ctrl->type == CTRL_FILESELECT ?
ctrl->fileselect.shortcut :
ctrl->fontselect.shortcut),
SHORTCUT_UCTRL, uc);
uc->label = ww;
}
gint percentages[] = { 75, 25 };
w = columns_new(4);
columns_set_cols(COLUMNS(w), 2, percentages);
uc->entry = ww = gtk_entry_new();
if (ctrl->label) {
ww = gtk_label_new(ctrl->label);
columns_add(COLUMNS(w), ww, 0, 2);
columns_force_left_align(COLUMNS(w), ww);
gtk_widget_show(ww);
shortcut_add(scs, ww,
(ctrl->type == CTRL_FILESELECT ?
ctrl->fileselect.shortcut :
ctrl->fontselect.shortcut),
SHORTCUT_UCTRL, uc);
uc->label = ww;
}
uc->entry = ww = gtk_entry_new();
#if !GTK_CHECK_VERSION(3,0,0)
{
GtkRequisition req;
gtk_widget_size_request(ww, &req);
gtk_widget_set_size_request(ww, 10, req.height);
}
{
GtkRequisition req;
gtk_widget_size_request(ww, &req);
gtk_widget_set_size_request(ww, 10, req.height);
}
#else
gtk_entry_set_width_chars(GTK_ENTRY(ww), 1);
gtk_entry_set_width_chars(GTK_ENTRY(ww), 1);
#endif
columns_add(COLUMNS(w), ww, 0, 1);
gtk_widget_show(ww);
columns_add(COLUMNS(w), ww, 0, 1);
gtk_widget_show(ww);
uc->button = ww = gtk_button_new_with_label(browsebtn);
columns_add(COLUMNS(w), ww, 1, 1);
gtk_widget_show(ww);
uc->button = ww = gtk_button_new_with_label(browsebtn);
columns_add(COLUMNS(w), ww, 1, 1);
gtk_widget_show(ww);
columns_force_same_height(COLUMNS(w), uc->entry, uc->button);
columns_force_same_height(COLUMNS(w), uc->entry, uc->button);
g_signal_connect(G_OBJECT(uc->entry), "key_press_event",
G_CALLBACK(editbox_key), dp);
uc->entrysig =
g_signal_connect(G_OBJECT(uc->entry), "changed",
G_CALLBACK(editbox_changed), dp);
g_signal_connect(G_OBJECT(uc->entry), "focus_in_event",
G_CALLBACK(widget_focus), dp);
g_signal_connect(G_OBJECT(uc->entry), "key_press_event",
G_CALLBACK(editbox_key), dp);
uc->entrysig =
g_signal_connect(G_OBJECT(uc->entry), "changed",
G_CALLBACK(editbox_changed), dp);
g_signal_connect(G_OBJECT(uc->entry), "focus_in_event",
G_CALLBACK(widget_focus), dp);
} else {
uc->button = w = gtk_button_new_with_label(ctrl->label);
shortcut_add(scs, gtk_bin_get_child(GTK_BIN(w)),
ctrl->fileselect.shortcut, SHORTCUT_UCTRL, uc);
gtk_widget_show(w);
}
g_signal_connect(G_OBJECT(uc->button), "focus_in_event",
G_CALLBACK(widget_focus), dp);
g_signal_connect(G_OBJECT(ww), "clicked",
g_signal_connect(G_OBJECT(uc->button), "clicked",
G_CALLBACK(filefont_clicked), dp);
break;
}
@ -2669,7 +2697,8 @@ gint win_key_press(GtkWidget *widget, GdkEventKey *event, gpointer data)
/* File/font selectors have their buttons pressed (ooer),
* and focus transferred to the edit box. */
g_signal_emit_by_name(G_OBJECT(sc->uc->button), "clicked");
gtk_widget_grab_focus(sc->uc->entry);
if (sc->uc->entry)
gtk_widget_grab_focus(sc->uc->entry);
break;
case CTRL_RADIO:
/*

57
windows/controls.c
View File

@ -1663,12 +1663,15 @@ void winctrl_layout(struct dlgparam *dp, struct winctrls *wc,
sfree(escaped);
break;
case CTRL_FILESELECT:
num_ids = 3;
escaped = shortcut_escape(ctrl->label,
ctrl->fileselect.shortcut);
escaped = shortcut_escape(ctrl->label, ctrl->fileselect.shortcut);
shortcuts[nshortcuts++] = ctrl->fileselect.shortcut;
editbutton(&pos, escaped, base_id, base_id+1,
"Browse...", base_id+2);
num_ids = 3;
if (!ctrl->fileselect.just_button) {
editbutton(&pos, escaped, base_id, base_id+1,
"Browse...", base_id+2);
} else {
button(&pos, escaped, base_id+2, false);
}
sfree(escaped);
break;
case CTRL_FONTSELECT:
@ -1980,15 +1983,27 @@ bool winctrl_handle_command(struct dlgparam *dp, UINT msg,
of.lpstrCustomFilter = NULL;
of.nFilterIndex = 1;
of.lpstrFile = filename;
GetDlgItemText(dp->hwnd, c->base_id+1, filename, lenof(filename));
filename[lenof(filename)-1] = '\0';
if (!ctrl->fileselect.just_button) {
GetDlgItemText(dp->hwnd, c->base_id+1,
filename, lenof(filename));
filename[lenof(filename)-1] = '\0';
} else {
*filename = '\0';
}
of.nMaxFile = lenof(filename);
of.lpstrFileTitle = NULL;
of.lpstrTitle = ctrl->fileselect.title;
of.Flags = 0;
if (request_file(NULL, &of, false, ctrl->fileselect.for_writing)) {
SetDlgItemText(dp->hwnd, c->base_id + 1, filename);
ctrl->handler(ctrl, dp, dp->data, EVENT_VALCHANGE);
if (!ctrl->fileselect.just_button) {
SetDlgItemText(dp->hwnd, c->base_id + 1, filename);
ctrl->handler(ctrl, dp, dp->data, EVENT_VALCHANGE);
} else {
assert(!c->data);
c->data = filename;
ctrl->handler(ctrl, dp, dp->data, EVENT_ACTION);
c->data = NULL;
}
}
}
break;
@ -2330,7 +2345,10 @@ void dlg_label_change(dlgcontrol *ctrl, dlgparam *dp, char const *text)
break;
case CTRL_FILESELECT:
escaped = shortcut_escape(text, ctrl->fileselect.shortcut);
id = c->base_id;
if (ctrl->fileselect.just_button)
id = c->base_id + 2; /* the button */
else
id = c->base_id; /* the label */
break;
case CTRL_FONTSELECT:
escaped = shortcut_escape(text, ctrl->fontselect.shortcut);
@ -2348,7 +2366,9 @@ void dlg_label_change(dlgcontrol *ctrl, dlgparam *dp, char const *text)
void dlg_filesel_set(dlgcontrol *ctrl, dlgparam *dp, Filename *fn)
{
struct winctrl *c = dlg_findbyctrl(dp, ctrl);
assert(c && c->ctrl->type == CTRL_FILESELECT);
assert(c);
assert(c->ctrl->type == CTRL_FILESELECT);
assert(!c->ctrl->fileselect.just_button);
SetDlgItemText(dp->hwnd, c->base_id+1, fn->path);
}
@ -2357,11 +2377,16 @@ Filename *dlg_filesel_get(dlgcontrol *ctrl, dlgparam *dp)
struct winctrl *c = dlg_findbyctrl(dp, ctrl);
char *tmp;
Filename *ret;
assert(c && c->ctrl->type == CTRL_FILESELECT);
tmp = GetDlgItemText_alloc(dp->hwnd, c->base_id+1);
ret = filename_from_str(tmp);
sfree(tmp);
return ret;
assert(c);
assert(c->ctrl->type == CTRL_FILESELECT);
if (!c->ctrl->fileselect.just_button) {
tmp = GetDlgItemText_alloc(dp->hwnd, c->base_id+1);
ret = filename_from_str(tmp);
sfree(tmp);
return ret;
} else {
return filename_from_str(c->data);
}
}
void dlg_fontsel_set(dlgcontrol *ctrl, dlgparam *dp, FontSpec *fs)