| // 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. |
| |
| #ifndef CONTENT_RENDERER_ACCESSIBILITY_BLINK_AX_TREE_SOURCE_H_ |
| #define CONTENT_RENDERER_ACCESSIBILITY_BLINK_AX_TREE_SOURCE_H_ |
| |
| #include "third_party/WebKit/public/web/WebAXObject.h" |
| #include "ui/accessibility/ax_node_data.h" |
| #include "ui/accessibility/ax_tree_source.h" |
| |
| namespace content { |
| |
| class RenderFrameImpl; |
| |
| class BlinkAXTreeSource |
| : public ui::AXTreeSource<blink::WebAXObject> { |
| public: |
| BlinkAXTreeSource(RenderFrameImpl* render_frame); |
| ~BlinkAXTreeSource() override; |
| |
| // Call this to have BlinkAXTreeSource collect a mapping from |
| // node ids to the frame routing id for an out-of-process iframe during |
| // calls to SerializeNode. |
| void CollectChildFrameIdMapping( |
| std::map<int32, int>* node_to_frame_routing_id_map, |
| std::map<int32, int>* node_to_browser_plugin_instance_id_map); |
| |
| // Walks up the ancestor chain to see if this is a descendant of the root. |
| bool IsInTree(blink::WebAXObject node) const; |
| |
| // Set the id of the node with accessibility focus. The node with |
| // accessibility focus will force loading inline text box children, |
| // which aren't always loaded by default on all platforms. |
| int accessibility_focus_id() { return accessibility_focus_id_; } |
| void set_accessiblity_focus_id(int id) { accessibility_focus_id_ = id; } |
| |
| // AXTreeSource implementation. |
| blink::WebAXObject GetRoot() const override; |
| blink::WebAXObject GetFromId(int32 id) const override; |
| int32 GetId(blink::WebAXObject node) const override; |
| void GetChildren( |
| blink::WebAXObject node, |
| std::vector<blink::WebAXObject>* out_children) const override; |
| blink::WebAXObject GetParent(blink::WebAXObject node) const override; |
| void SerializeNode(blink::WebAXObject node, |
| ui::AXNodeData* out_data) const override; |
| bool IsValid(blink::WebAXObject node) const override; |
| bool IsEqual(blink::WebAXObject node1, |
| blink::WebAXObject node2) const override; |
| blink::WebAXObject GetNull() const override; |
| |
| blink::WebDocument GetMainDocument() const; |
| |
| private: |
| RenderFrameImpl* render_frame_; |
| std::map<int32, int>* node_to_frame_routing_id_map_; |
| std::map<int32, int>* node_to_browser_plugin_instance_id_map_; |
| int accessibility_focus_id_; |
| }; |
| |
| } // namespace content |
| |
| #endif // CONTENT_RENDERER_ACCESSIBILITY_BLINK_AX_TREE_SOURCE_H_ |