| // 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/views/accessibility/ax_aura_obj_cache.h" |
| |
| #include "base/memory/singleton.h" |
| #include "base/stl_util.h" |
| #include "ui/aura/window.h" |
| #include "ui/views/accessibility/ax_aura_obj_wrapper.h" |
| #include "ui/views/accessibility/ax_view_obj_wrapper.h" |
| #include "ui/views/accessibility/ax_widget_obj_wrapper.h" |
| #include "ui/views/accessibility/ax_window_obj_wrapper.h" |
| #include "ui/views/view.h" |
| #include "ui/views/widget/widget.h" |
| |
| namespace views { |
| |
| // static |
| AXAuraObjCache* AXAuraObjCache::GetInstance() { |
| return Singleton<AXAuraObjCache>::get(); |
| } |
| |
| AXAuraObjWrapper* AXAuraObjCache::GetOrCreate(View* view) { |
| return CreateInternal<AXViewObjWrapper>(view, view_to_id_map_); |
| } |
| |
| AXAuraObjWrapper* AXAuraObjCache::GetOrCreate(Widget* widget) { |
| return CreateInternal<AXWidgetObjWrapper>(widget, widget_to_id_map_); |
| } |
| |
| AXAuraObjWrapper* AXAuraObjCache::GetOrCreate(aura::Window* window) { |
| return CreateInternal<AXWindowObjWrapper>(window, window_to_id_map_); |
| } |
| |
| int32 AXAuraObjCache::GetID(View* view) { |
| return GetIDInternal(view, view_to_id_map_); |
| } |
| |
| int32 AXAuraObjCache::GetID(Widget* widget) { |
| return GetIDInternal(widget, widget_to_id_map_); |
| } |
| |
| int32 AXAuraObjCache::GetID(aura::Window* window) { |
| return GetIDInternal(window, window_to_id_map_); |
| } |
| |
| void AXAuraObjCache::Remove(View* view) { |
| RemoveInternal(view, view_to_id_map_); |
| } |
| |
| void AXAuraObjCache::Remove(Widget* widget) { |
| RemoveInternal(widget, widget_to_id_map_); |
| } |
| |
| void AXAuraObjCache::Remove(aura::Window* window) { |
| RemoveInternal(window, window_to_id_map_); |
| } |
| |
| AXAuraObjWrapper* AXAuraObjCache::Get(int32 id) { |
| std::map<int32, AXAuraObjWrapper*>::iterator it = cache_.find(id); |
| |
| if (it == cache_.end()) |
| return NULL; |
| |
| return it->second; |
| } |
| |
| void AXAuraObjCache::Remove(int32 id) { |
| AXAuraObjWrapper* obj = Get(id); |
| |
| if (id == -1 || !obj) |
| return; |
| |
| cache_.erase(id); |
| delete obj; |
| } |
| |
| AXAuraObjCache::AXAuraObjCache() : current_id_(1) { |
| } |
| |
| AXAuraObjCache::~AXAuraObjCache() { |
| STLDeleteContainerPairSecondPointers(cache_.begin(), cache_.end()); |
| cache_.clear(); |
| } |
| |
| template <typename AuraViewWrapper, typename AuraView> |
| AXAuraObjWrapper* AXAuraObjCache::CreateInternal( |
| AuraView* aura_view, std::map<AuraView*, int32>& aura_view_to_id_map) { |
| if (!aura_view) |
| return NULL; |
| |
| typename std::map<AuraView*, int32>::iterator it = |
| aura_view_to_id_map.find(aura_view); |
| |
| if (it != aura_view_to_id_map.end()) |
| return Get(it->second); |
| |
| AXAuraObjWrapper* wrapper = new AuraViewWrapper(aura_view); |
| aura_view_to_id_map[aura_view] = current_id_; |
| cache_[current_id_] = wrapper; |
| current_id_++; |
| return wrapper; |
| } |
| |
| template<typename AuraView> int32 AXAuraObjCache::GetIDInternal( |
| AuraView* aura_view, std::map<AuraView*, int32>& aura_view_to_id_map) { |
| if (!aura_view) |
| return -1; |
| |
| typename std::map<AuraView*, int32>::iterator it = |
| aura_view_to_id_map.find(aura_view); |
| |
| if (it != aura_view_to_id_map.end()) |
| return it->second; |
| |
| return -1; |
| } |
| |
| template<typename AuraView> |
| void AXAuraObjCache::RemoveInternal( |
| AuraView* aura_view, std::map<AuraView*, int32>& aura_view_to_id_map) { |
| int32 id = GetID(aura_view); |
| if (id == -1) |
| return; |
| aura_view_to_id_map.erase(aura_view); |
| Remove(id); |
| } |
| |
| } // namespace views |