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