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Add gtk_im_context_filter_key

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An event-less variant of the filtering api.
This commit is contained in:
Matthias Clasen 2020-05-28 16:10:54 -04:00
parent 266a3a5267
commit 506d73cf32
3 changed files with 109 additions and 1 deletions
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1
docs/reference/gtk/gtk4-sections.txt
View File

@ -1486,6 +1486,7 @@ GtkIMContext
GtkIMContextClass
gtk_im_context_get_preedit_string
gtk_im_context_filter_keypress
gtk_im_context_filter_key
gtk_im_context_focus_in
gtk_im_context_focus_out
gtk_im_context_reset

96
gtk/gtkimcontext.c
View File

@ -522,6 +522,102 @@ gtk_im_context_filter_keypress (GtkIMContext *context,
return klass->filter_keypress (context, key);
}
/**
* gtk_im_context_filter_key:
* @context: a #GtkIMContext
* @press: whether to forward a key press or release event
* @surface: the surface the event is for
* @device: the device that the event is for
* @time: the timestamp for the event
* @keycode: the keycode for the event
* @state: modifier state for the event
* @group: the active keyboard group for the event
*
* Allow an input method to forward key press and release events
* to another input method, without necessarily having a GdkEvent
* available.
*
* Returns: %TRUE if the input method handled the key event.
*/
gboolean
gtk_im_context_filter_key (GtkIMContext *context,
gboolean press,
GdkSurface *surface,
GdkDevice *device,
guint32 time,
guint keycode,
GdkModifierType state,
int group)
{
GdkDevice *source_device;
GdkTranslatedKey translated, no_lock;
GdkEvent *key;
gboolean ret;
guint keyval;
int layout;
int level;
GdkModifierType consumed;
g_return_val_if_fail (GTK_IS_IM_CONTEXT (context), FALSE);
if (gdk_device_get_device_type (device) == GDK_DEVICE_TYPE_MASTER)
{
source_device = NULL;
}
else
{
source_device = device;
device = gdk_device_get_associated_device (source_device);
}
if (!gdk_display_translate_key (gdk_surface_get_display (surface),
keycode,
state,
group,
&keyval,
&layout,
&level,
&consumed))
return FALSE;
translated.keyval = keyval;
translated.layout = layout;
translated.level = level;
translated.consumed = consumed;
if (!gdk_display_translate_key (gdk_surface_get_display (surface),
keycode,
state & ~GDK_LOCK_MASK,
group,
&keyval,
&layout,
&level,
&consumed))
return FALSE;
no_lock.keyval = keyval;
no_lock.layout = layout;
no_lock.level = level;
no_lock.consumed = consumed;
key = gdk_key_event_new (press ? GDK_KEY_PRESS : GDK_KEY_RELEASE,
surface,
device,
source_device,
time,
keycode,
state,
FALSE, /* FIXME */
&translated,
&no_lock);
ret = GTK_IM_CONTEXT_GET_CLASS (context)->filter_keypress (context, key);
gdk_event_unref (key);
return ret;
}
/**
* gtk_im_context_focus_in:
* @context: a #GtkIMContext

11
gtk/gtkimcontext.h
View File

@ -107,6 +107,17 @@ void gtk_im_context_get_preedit_string (GtkIMContext *context,
GDK_AVAILABLE_IN_ALL
gboolean gtk_im_context_filter_keypress (GtkIMContext *context,
GdkEvent *event);
GDK_AVAILABLE_IN_ALL
gboolean gtk_im_context_filter_key (GtkIMContext *context,
gboolean press,
GdkSurface *surface,
GdkDevice *device,
guint32 time,
guint keycode,
GdkModifierType state,
int group);
GDK_AVAILABLE_IN_ALL
void gtk_im_context_focus_in (GtkIMContext *context);
GDK_AVAILABLE_IN_ALL