content/browser/android/ui_resource_provider_impl.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 "content/browser/android/ui_resource_provider_impl.h"
   6
   7 #include "cc/resources/ui_resource_client.h"
   8 #include "cc/trees/layer_tree_host.h"
   9 #include "content/public/browser/android/ui_resource_client_android.h"
  10
  11 namespace content {
  12
  13 UIResourceProviderImpl::UIResourceProviderImpl()
  14     : system_ui_resource_manager_(this), host_(NULL),
  15       supports_etc1_npot_(false) {
  16
  17 }
  18
  19 UIResourceProviderImpl::~UIResourceProviderImpl() {
  20   SetLayerTreeHost(NULL);
  21 }
  22
  23 void UIResourceProviderImpl::SetLayerTreeHost(cc::LayerTreeHost* host) {
  24   if (host_ == host)
  25     return;
  26   host_ = host;
  27   UIResourcesAreInvalid();
  28 }
  29
  30 void UIResourceProviderImpl::UIResourcesAreInvalid() {
  31   UIResourceClientMap client_map = ui_resource_client_map_;
  32   ui_resource_client_map_.clear();
  33   for (UIResourceClientMap::iterator iter = client_map.begin();
  34        iter != client_map.end();
  35        iter++) {
  36     iter->second->UIResourceIsInvalid();
  37   }
  38 }
  39
  40 cc::UIResourceId UIResourceProviderImpl::CreateUIResource(
  41     UIResourceClientAndroid* client) {
  42   if (!host_)
  43     return 0;
  44   cc::UIResourceId id = host_->CreateUIResource(client);
  45   DCHECK(ui_resource_client_map_.find(id) == ui_resource_client_map_.end());
  46
  47   ui_resource_client_map_[id] = client;
  48   return id;
  49 }
  50
  51 void UIResourceProviderImpl::DeleteUIResource(cc::UIResourceId ui_resource_id) {
  52   UIResourceClientMap::iterator iter =
  53       ui_resource_client_map_.find(ui_resource_id);
  54   DCHECK(iter != ui_resource_client_map_.end());
  55
  56   ui_resource_client_map_.erase(iter);
  57
  58   if (!host_)
  59     return;
  60   host_->DeleteUIResource(ui_resource_id);
  61 }
  62
  63 ui::SystemUIResourceManager&
  64 UIResourceProviderImpl::GetSystemUIResourceManager() {
  65   return system_ui_resource_manager_;
  66 }
  67
  68 bool UIResourceProviderImpl::SupportsETC1NonPowerOfTwo() const {
  69   return supports_etc1_npot_;
  70 }
  71
  72 }  // namespace content