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

   1 // Copyright 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "ui/ozone/platform/drm/host/drm_window_host_manager.h"
   6
   7 #include "base/logging.h"
   8 #include "ui/ozone/platform/drm/host/drm_window_host.h"
   9
  10 namespace ui {
  11
  12 DrmWindowHostManager::DrmWindowHostManager() {
  13 }
  14
  15 DrmWindowHostManager::~DrmWindowHostManager() {
  16 }
  17
  18 gfx::AcceleratedWidget DrmWindowHostManager::NextAcceleratedWidget() {
  19   // We're not using 0 since other code assumes that a 0 AcceleratedWidget is an
  20   // invalid widget.
  21   return ++last_allocated_widget_;
  22 }
  23
  24 void DrmWindowHostManager::AddWindow(gfx::AcceleratedWidget widget,
  25                                      DrmWindowHost* window) {
  26   std::pair<WidgetToWindowMap::iterator, bool> result = window_map_.insert(
  27       std::pair<gfx::AcceleratedWidget, DrmWindowHost*>(widget, window));
  28   DCHECK(result.second) << "Window for " << widget << " already added.";
  29 }
  30
  31 void DrmWindowHostManager::RemoveWindow(gfx::AcceleratedWidget widget) {
  32   WidgetToWindowMap::iterator it = window_map_.find(widget);
  33   if (it != window_map_.end())
  34     window_map_.erase(it);
  35   else
  36     NOTREACHED() << "Attempting to remove non-existing window " << widget;
  37
  38   if (event_grabber_ == widget)
  39     event_grabber_ = gfx::kNullAcceleratedWidget;
  40 }
  41
  42 DrmWindowHost* DrmWindowHostManager::GetWindow(gfx::AcceleratedWidget widget) {
  43   WidgetToWindowMap::iterator it = window_map_.find(widget);
  44   if (it != window_map_.end())
  45     return it->second;
  46
  47   NOTREACHED() << "Attempting to get non-existing window " << widget;
  48   return NULL;
  49 }
  50
  51 DrmWindowHost* DrmWindowHostManager::GetWindowAt(const gfx::Point& location) {
  52   for (auto it = window_map_.begin(); it != window_map_.end(); ++it)
  53     if (it->second->GetBounds().Contains(location))
  54       return it->second;
  55
  56   return NULL;
  57 }
  58
  59 DrmWindowHost* DrmWindowHostManager::GetPrimaryWindow() {
  60   auto it = window_map_.begin();
  61   return it != window_map_.end() ? it->second : nullptr;
  62 }
  63
  64 void DrmWindowHostManager::GrabEvents(gfx::AcceleratedWidget widget) {
  65   if (event_grabber_ != gfx::kNullAcceleratedWidget)
  66     return;
  67   event_grabber_ = widget;
  68 }
  69
  70 void DrmWindowHostManager::UngrabEvents(gfx::AcceleratedWidget widget) {
  71   if (event_grabber_ != widget)
  72     return;
  73   event_grabber_ = gfx::kNullAcceleratedWidget;
  74 }
  75
  76 }  // namespace ui