forked from AuroraMiddleware/gtk
dd251d85c4
We want to make events readonly, so stop translating their coordinates and instead pass the translated coordinates separately, when propagating events.
121 lines
3.5 KiB
C
121 lines
3.5 KiB
C
/* GTK - The GIMP Toolkit
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* Copyright (C) 2017, Red Hat, Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library. If not, see <http://www.gnu.org/licenses/>.
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*
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* Author(s): Carlos Garnacho <carlosg@gnome.org>
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*/
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/**
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* SECTION:gtkeventcontrollerlegacy
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* @Short_description: Event controller for miscellaneous events
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* @Title: GtkEventControllerLegacy
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* @See_also: #GtkEventController
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*
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* #GtkEventControllerLegacy is an event controller that gives you
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* direct access to the event stream. It should only be used as a
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* last resort if none of the other event controllers or gestures
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* do the job.
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**/
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#include "config.h"
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#include "gtkeventcontrollerlegacy.h"
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#include "gtkeventcontrollerprivate.h"
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#include "gtkmarshalers.h"
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#include "gtkintl.h"
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#include "gtkprivate.h"
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struct _GtkEventControllerLegacy
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{
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GtkEventController parent_instance;
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};
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struct _GtkEventControllerLegacyClass
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{
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GtkEventControllerClass parent_class;
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};
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enum {
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EVENT,
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N_SIGNALS
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};
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static guint signals[N_SIGNALS] = { 0, };
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G_DEFINE_TYPE (GtkEventControllerLegacy, gtk_event_controller_legacy,
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GTK_TYPE_EVENT_CONTROLLER)
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static gboolean
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gtk_event_controller_legacy_handle_event (GtkEventController *controller,
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const GdkEvent *event,
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double x,
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double y)
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{
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gboolean handled;
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g_signal_emit (controller, signals[EVENT], 0, event, &handled);
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return handled;
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}
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static void
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gtk_event_controller_legacy_class_init (GtkEventControllerLegacyClass *klass)
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{
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GtkEventControllerClass *controller_class = GTK_EVENT_CONTROLLER_CLASS (klass);
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controller_class->handle_event = gtk_event_controller_legacy_handle_event;
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/**
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* GtkEventControllerLegacy::event:
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* @controller: the object which received the signal.
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* @event: the #GdkEvent which triggered this signal
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*
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* Emitted for each GDK event delivered to @controller.
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*
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* Returns: %TRUE to stop other handlers from being invoked for the event
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* and the emission of this signal. %FALSE to propagate the event further.
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*/
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signals[EVENT] =
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g_signal_new (I_("event"),
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G_TYPE_FROM_CLASS (klass),
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G_SIGNAL_RUN_LAST,
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0, _gtk_boolean_handled_accumulator, NULL,
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_gtk_marshal_BOOLEAN__OBJECT,
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G_TYPE_BOOLEAN, 1,
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GDK_TYPE_EVENT);
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g_signal_set_va_marshaller (signals[EVENT], G_TYPE_FROM_CLASS (klass),
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_gtk_marshal_BOOLEAN__OBJECTv);
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}
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static void
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gtk_event_controller_legacy_init (GtkEventControllerLegacy *controller)
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{
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}
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/**
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* gtk_event_controller_legacy_new:
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*
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* Creates a new legacy event controller.
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*
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* Returns: the newly created event controller.
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*/
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GtkEventController *
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gtk_event_controller_legacy_new (void)
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{
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return g_object_new (GTK_TYPE_EVENT_CONTROLLER_LEGACY,
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NULL);
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}
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