diff options
Diffstat (limited to 'chromium/ui/views/accessibility/ax_aura_obj_cache.cc')
-rw-r--r-- | chromium/ui/views/accessibility/ax_aura_obj_cache.cc | 130 |
1 files changed, 130 insertions, 0 deletions
diff --git a/chromium/ui/views/accessibility/ax_aura_obj_cache.cc b/chromium/ui/views/accessibility/ax_aura_obj_cache.cc new file mode 100644 index 00000000000..ae2df2068ab --- /dev/null +++ b/chromium/ui/views/accessibility/ax_aura_obj_cache.cc @@ -0,0 +1,130 @@ +// 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 |