Ozone integration.

ui/ozone/platform/drm/host/drm_window_host_manager.cc

+// Copyright 2014 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/ozone/platform/drm/host/drm_window_host_manager.h"
+
+#include "base/logging.h"
+#include "ui/ozone/platform/drm/host/drm_window_host.h"
+
+namespace ui {
+
+DrmWindowHostManager::DrmWindowHostManager() {
+}
+
+DrmWindowHostManager::~DrmWindowHostManager() {
+}
+
+gfx::AcceleratedWidget DrmWindowHostManager::NextAcceleratedWidget() {
+  // We're not using 0 since other code assumes that a 0 AcceleratedWidget is an
+  // invalid widget.
+  return ++last_allocated_widget_;
+}
+
+void DrmWindowHostManager::AddWindow(gfx::AcceleratedWidget widget,
+                                     DrmWindowHost* window) {
+  std::pair<WidgetToWindowMap::iterator, bool> result = window_map_.insert(
+      std::pair<gfx::AcceleratedWidget, DrmWindowHost*>(widget, window));
+  DCHECK(result.second) << "Window for " << widget << " already added.";
+}
+
+void DrmWindowHostManager::RemoveWindow(gfx::AcceleratedWidget widget) {
+  WidgetToWindowMap::iterator it = window_map_.find(widget);
+  if (it != window_map_.end())
+    window_map_.erase(it);
+  else
+    NOTREACHED() << "Attempting to remove non-existing window " << widget;
+
+  if (event_grabber_ == widget)
+    event_grabber_ = gfx::kNullAcceleratedWidget;
+}
+
+DrmWindowHost* DrmWindowHostManager::GetWindow(gfx::AcceleratedWidget widget) {
+  WidgetToWindowMap::iterator it = window_map_.find(widget);
+  if (it != window_map_.end())
+    return it->second;
+
+  NOTREACHED() << "Attempting to get non-existing window " << widget;
+  return NULL;
+}
+
+DrmWindowHost* DrmWindowHostManager::GetWindowAt(const gfx::Point& location) {
+  for (auto it = window_map_.begin(); it != window_map_.end(); ++it)
+    if (it->second->GetBounds().Contains(location))
+      return it->second;
+
+  return NULL;
+}
+
+DrmWindowHost* DrmWindowHostManager::GetPrimaryWindow() {
+  auto it = window_map_.begin();
+  return it != window_map_.end() ? it->second : nullptr;
+}
+
+void DrmWindowHostManager::GrabEvents(gfx::AcceleratedWidget widget) {
+  if (event_grabber_ != gfx::kNullAcceleratedWidget)
+    return;
+  event_grabber_ = widget;
+}
+
+void DrmWindowHostManager::UngrabEvents(gfx::AcceleratedWidget widget) {
+  if (event_grabber_ != widget)
+    return;
+  event_grabber_ = gfx::kNullAcceleratedWidget;
+}
+
+}  // namespace ui