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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 "ui/aura/dispatcher_linux.h"
#include <X11/extensions/XInput2.h>
#include "ui/aura/root_window_host_linux.h"
#include "ui/base/events.h"
namespace aura {
DispatcherLinux::DispatcherLinux() {
base::MessagePumpX::SetDefaultDispatcher(this);
}
DispatcherLinux::~DispatcherLinux() {
base::MessagePumpX::SetDefaultDispatcher(NULL);
}
void DispatcherLinux::RootWindowHostCreated(::Window window,
::Window root,
RootWindowHostLinux* host) {
hosts_.insert(std::make_pair(window, host));
// Only the 1st root window listens to the root window.
if (hosts_.find(root) == hosts_.end())
hosts_.insert(std::make_pair(root, host));
}
void DispatcherLinux::RootWindowHostDestroying(::Window window, ::Window root) {
if (hosts_[window] == hosts_[root])
hosts_.erase(root);
hosts_.erase(window);
}
base::MessagePumpDispatcher::DispatchStatus DispatcherLinux::Dispatch(
XEvent* xev) {
// XI_HierarchyChanged events are special. There is no window associated with
// these events. So process them directly from here.
if (xev->type == GenericEvent &&
xev->xgeneric.evtype == XI_HierarchyChanged) {
ui::UpdateDeviceList();
return EVENT_PROCESSED;
}
RootWindowHostLinux* host = GetRootWindowHostForXEvent(xev);
return host ? host->Dispatch(xev) : EVENT_IGNORED;
}
RootWindowHostLinux* DispatcherLinux::GetRootWindowHostForXEvent(
XEvent* xev) const {
::Window window = xev->xany.window;
if (xev->type == GenericEvent) {
XIDeviceEvent* xievent = static_cast<XIDeviceEvent*>(xev->xcookie.data);
window = xievent->event;
}
HostsMap::const_iterator it = hosts_.find(window);
return it != hosts_.end() ? it->second : NULL;
}
Dispatcher* CreateDispatcher() {
return new DispatcherLinux;
}
} // namespace aura
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