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// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "base/message_loop/message_pump_gtk.h"
#include <gtk/gtk.h>
#include <gdk/gdkx.h>
#include "base/debug/trace_event.h"
#include "base/profiler/scoped_profile.h"
namespace base {
namespace {
const char* EventToTypeString(const GdkEvent* event) {
switch (event->type) {
case GDK_NOTHING: return "GDK_NOTHING";
case GDK_DELETE: return "GDK_DELETE";
case GDK_DESTROY: return "GDK_DESTROY";
case GDK_EXPOSE: return "GDK_EXPOSE";
case GDK_MOTION_NOTIFY: return "GDK_MOTION_NOTIFY";
case GDK_BUTTON_PRESS: return "GDK_BUTTON_PRESS";
case GDK_2BUTTON_PRESS: return "GDK_2BUTTON_PRESS";
case GDK_3BUTTON_PRESS: return "GDK_3BUTTON_PRESS";
case GDK_BUTTON_RELEASE: return "GDK_BUTTON_RELEASE";
case GDK_KEY_PRESS: return "GDK_KEY_PRESS";
case GDK_KEY_RELEASE: return "GDK_KEY_RELEASE";
case GDK_ENTER_NOTIFY: return "GDK_ENTER_NOTIFY";
case GDK_LEAVE_NOTIFY: return "GDK_LEAVE_NOTIFY";
case GDK_FOCUS_CHANGE: return "GDK_FOCUS_CHANGE";
case GDK_CONFIGURE: return "GDK_CONFIGURE";
case GDK_MAP: return "GDK_MAP";
case GDK_UNMAP: return "GDK_UNMAP";
case GDK_PROPERTY_NOTIFY: return "GDK_PROPERTY_NOTIFY";
case GDK_SELECTION_CLEAR: return "GDK_SELECTION_CLEAR";
case GDK_SELECTION_REQUEST: return "GDK_SELECTION_REQUEST";
case GDK_SELECTION_NOTIFY: return "GDK_SELECTION_NOTIFY";
case GDK_PROXIMITY_IN: return "GDK_PROXIMITY_IN";
case GDK_PROXIMITY_OUT: return "GDK_PROXIMITY_OUT";
case GDK_DRAG_ENTER: return "GDK_DRAG_ENTER";
case GDK_DRAG_LEAVE: return "GDK_DRAG_LEAVE";
case GDK_DRAG_MOTION: return "GDK_DRAG_MOTION";
case GDK_DRAG_STATUS: return "GDK_DRAG_STATUS";
case GDK_DROP_START: return "GDK_DROP_START";
case GDK_DROP_FINISHED: return "GDK_DROP_FINISHED";
case GDK_CLIENT_EVENT: return "GDK_CLIENT_EVENT";
case GDK_VISIBILITY_NOTIFY: return "GDK_VISIBILITY_NOTIFY";
case GDK_NO_EXPOSE: return "GDK_NO_EXPOSE";
case GDK_SCROLL: return "GDK_SCROLL";
case GDK_WINDOW_STATE: return "GDK_WINDOW_STATE";
case GDK_SETTING: return "GDK_SETTING";
case GDK_OWNER_CHANGE: return "GDK_OWNER_CHANGE";
case GDK_GRAB_BROKEN: return "GDK_GRAB_BROKEN";
case GDK_DAMAGE: return "GDK_DAMAGE";
default:
return "Unknown Gdk Event";
}
}
} // namespace
MessagePumpGtk::MessagePumpGtk() : MessagePumpGlib() {
gdk_event_handler_set(&EventDispatcher, this, NULL);
}
MessagePumpGtk::~MessagePumpGtk() {
gdk_event_handler_set(reinterpret_cast<GdkEventFunc>(gtk_main_do_event),
this, NULL);
}
void MessagePumpGtk::DispatchEvents(GdkEvent* event) {
UNSHIPPED_TRACE_EVENT1("task", "MessagePumpGtk::DispatchEvents",
"type", EventToTypeString(event));
WillProcessEvent(event);
MessagePumpDispatcher* dispatcher = GetDispatcher();
if (!dispatcher)
gtk_main_do_event(event);
else if (!dispatcher->Dispatch(event))
Quit();
DidProcessEvent(event);
}
// static
Display* MessagePumpGtk::GetDefaultXDisplay() {
static GdkDisplay* display = gdk_display_get_default();
if (!display) {
// GTK / GDK has not been initialized, which is a decision we wish to
// support, for example for the GPU process.
static Display* xdisplay = XOpenDisplay(NULL);
return xdisplay;
}
return GDK_DISPLAY_XDISPLAY(display);
}
void MessagePumpGtk::WillProcessEvent(GdkEvent* event) {
FOR_EACH_OBSERVER(MessagePumpObserver, observers(), WillProcessEvent(event));
}
void MessagePumpGtk::DidProcessEvent(GdkEvent* event) {
FOR_EACH_OBSERVER(MessagePumpObserver, observers(), DidProcessEvent(event));
}
// static
void MessagePumpGtk::EventDispatcher(GdkEvent* event, gpointer data) {
MessagePumpGtk* message_pump = reinterpret_cast<MessagePumpGtk*>(data);
message_pump->DispatchEvents(event);
}
} // namespace base
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