Add PlatformWindow/Event related code for Ozone X11.

ui/platform_window/x11/x11_window_ozone.cc

+// Copyright 2016 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/platform_window/x11/x11_window_ozone.h"
+
+#include "ui/events/event.h"
+#include "ui/events/ozone/events_ozone.h"
+#include "ui/events/platform/x11/x11_event_source.h"
+#include "ui/events/x/events_x_utils.h"
+#include "ui/gfx/geometry/point.h"
+
+namespace ui {
+
+X11WindowOzone::X11WindowOzone(PlatformWindowDelegate* delegate)
+    : X11WindowBase(delegate) {}
+
+X11WindowOzone::~X11WindowOzone() {
+  Destroy();
+}
+
+void X11WindowOzone::Create() {
+  DCHECK(X11EventSource::GetInstance());
+  X11EventSource::GetInstance()->AddPlatformEventDispatcher(this);
+
+  DCHECK(X11EventSourceOzone::GetInstance());
+  X11EventSourceOzone::GetInstance()->AddXEventDispatcher(this);
+
+  X11WindowBase::Create();
+}
+
+void X11WindowOzone::Destroy() {
+  X11EventSource::GetInstance()->RemovePlatformEventDispatcher(this);
+  X11EventSourceOzone::GetInstance()->RemoveXEventDispatcher(this);
+}
+
+void X11WindowOzone::Close() {
+  Destroy();
+  X11WindowBase::Destroy();
+}
+
+void X11WindowOzone::SetCursor(PlatformCursor cursor) {}
+
+bool X11WindowOzone::DispatchXEvent(XEvent* xev) {
+  if (XWindowFromXEvent(*xev) != xwindow())
+    return false;
+
+  ProcessXWindowEvent(xev);
+  return true;
+}
+
+bool X11WindowOzone::CanDispatchEvent(const PlatformEvent& event) {
+  // TODO(kylechar): This is broken, there is no way to include XID of XWindow
+  // in ui::Event. Fix or use similar hack to DrmWindowHost.
+  return true;
+}
+
+uint32_t X11WindowOzone::DispatchEvent(const PlatformEvent& platform_event) {
+  Event* event = static_cast<Event*>(platform_event);
+  delegate()->DispatchEvent(event);
+  return POST_DISPATCH_STOP_PROPAGATION;
+}
+
+}  // namespace ui