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// Copyright (c) 2010 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 "views/focus/accelerator_handler.h"
#include <gtk/gtk.h>
#if defined(HAVE_XINPUT2)
#include <X11/extensions/XInput2.h>
#else
#include <X11/Xlib.h>
#endif
#include "views/accelerator.h"
#include "views/event.h"
#include "views/focus/focus_manager.h"
#include "views/widget/root_view.h"
#include "views/widget/widget_gtk.h"
namespace views {
namespace {
RootView* FindRootViewForGdkWindow(GdkWindow* gdk_window) {
gpointer data = NULL;
gdk_window_get_user_data(gdk_window, &data);
GtkWidget* gtk_widget = reinterpret_cast<GtkWidget*>(data);
if (!gtk_widget || !GTK_IS_WIDGET(gtk_widget)) {
DLOG(WARNING) << "no GtkWidget found for that GdkWindow";
return NULL;
}
WidgetGtk* widget_gtk = WidgetGtk::GetViewForNative(gtk_widget);
if (!widget_gtk) {
DLOG(WARNING) << "no WidgetGtk found for that GtkWidget";
return NULL;
}
return widget_gtk->GetRootView();
}
#if defined(HAVE_XINPUT2)
bool X2EventIsTouchEvent(XEvent* xev) {
// TODO(sad): Determine if the captured event is a touch-event.
return false;
}
#endif // HAVE_XINPUT2
} // namespace
#if defined(HAVE_XINPUT2)
bool DispatchX2Event(RootView* root, XEvent* xev) {
if (X2EventIsTouchEvent(xev)) {
// TODO(sad): Create a TouchEvent, and send it off to |root|. If the event
// is processed by |root|, then return. Otherwise let it fall through so it
// can be used (if desired) as a mouse event.
// TouchEvent touch(xev);
// if (root->OnTouchEvent(touch))
// return true;
}
XGenericEventCookie* cookie = &xev->xcookie;
switch (cookie->evtype) {
case XI_KeyPress:
case XI_KeyRelease: {
// TODO(sad): We don't capture XInput2 events from keyboard yet.
break;
}
case XI_ButtonPress:
case XI_ButtonRelease: {
MouseEvent mouseev(xev);
if (cookie->evtype == XI_ButtonPress) {
return root->OnMousePressed(mouseev);
} else {
root->OnMouseReleased(mouseev, false);
return true;
}
}
case XI_Motion: {
MouseEvent mouseev(xev);
if (mouseev.GetType() == Event::ET_MOUSE_DRAGGED) {
return root->OnMouseDragged(mouseev);
} else {
root->OnMouseMoved(mouseev);
return true;
}
break;
}
}
return false;
}
#endif // HAVE_XINPUT2
bool DispatchXEvent(XEvent* xev) {
GdkDisplay* gdisp = gdk_display_get_default();
XID xwindow = xev->xany.window;
#if defined(HAVE_XINPUT2)
if (xev->type == GenericEvent) {
if (XGetEventData(xev->xgeneric.display, &xev->xcookie)) {
XGenericEventCookie* cookie = &xev->xcookie;
XIDeviceEvent* xiev = static_cast<XIDeviceEvent*>(cookie->data);
xwindow = xiev->event;
} else {
DLOG(WARNING) << "Error fetching XGenericEventCookie for event.";
return false;
}
}
#endif
GdkWindow* gwind = gdk_window_lookup_for_display(gdisp, xwindow);
if (RootView* root = FindRootViewForGdkWindow(gwind)) {
switch (xev->type) {
case KeyPress:
case KeyRelease: {
KeyEvent keyev(xev);
// If it's a keypress, check to see if it triggers an accelerator.
if (xev->type == KeyPress) {
FocusManager* focus_manager = root->GetFocusManager();
if (focus_manager && !focus_manager->OnKeyEvent(keyev))
return true;
}
return root->ProcessKeyEvent(keyev);
}
case ButtonPress:
case ButtonRelease: {
if (xev->xbutton.button == 4 || xev->xbutton.button == 5) {
// Scrolling the wheel triggers button press/release events.
MouseWheelEvent wheelev(xev);
return root->ProcessMouseWheelEvent(wheelev);
} else {
MouseEvent mouseev(xev);
if (xev->type == ButtonPress) {
return root->OnMousePressed(mouseev);
} else {
root->OnMouseReleased(mouseev, false);
return true; // Assume the event has been processed to make sure we
// don't process it twice.
}
}
}
case MotionNotify: {
MouseEvent mouseev(xev);
if (mouseev.GetType() == Event::ET_MOUSE_DRAGGED) {
return root->OnMouseDragged(mouseev);
} else {
root->OnMouseMoved(mouseev);
return true;
}
}
#if defined(HAVE_XINPUT2)
case GenericEvent: {
bool ret = DispatchX2Event(root, xev);
XFreeEventData(xev->xgeneric.display, &xev->xcookie);
return ret;
}
#endif
}
}
return false;
}
AcceleratorHandler::AcceleratorHandler() {}
bool AcceleratorHandler::Dispatch(GdkEvent* event) {
gtk_main_do_event(event);
return true;
}
bool AcceleratorHandler::Dispatch(XEvent* xev) {
return DispatchXEvent(xev);
}
} // namespace views
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