ui/ozone/platform/drm/host/display_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/display_manager.h"
   6
   7 #include "base/logging.h"
   8 #include "ui/display/types/display_snapshot.h"
   9
  10 namespace ui {
  11
  12 DisplayManager::DisplayManager() {
  13 }
  14
  15 DisplayManager::~DisplayManager() {
  16 }
  17
  18 void DisplayManager::RegisterDisplay(DisplaySnapshot* display) {
  19   std::pair<DisplayMap::iterator, bool> result = display_map_.insert(
  20       std::pair<int64_t, DisplaySnapshot*>(display->display_id(), display));
  21   DCHECK(result.second) << "Display " << display->display_id()
  22                         << " already added.";
  23 }
  24
  25 void DisplayManager::UnregisterDisplay(DisplaySnapshot* display) {
  26   DisplayMap::iterator it = display_map_.find(display->display_id());
  27   if (it != display_map_.end())
  28     display_map_.erase(it);
  29   else
  30     NOTREACHED() << "Attempting to remove non-existing display "
  31                  << display->display_id();
  32 }
  33
  34 DisplaySnapshot* DisplayManager::GetDisplay(int64_t display) {
  35   DisplayMap::iterator it = display_map_.find(display);
  36   if (it == display_map_.end())
  37     return nullptr;
  38
  39   return it->second;
  40 }
  41
  42 }  // namespace ui