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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "content/renderer/accessibility/renderer_accessibility_focus_only.h" | 5 #include "content/renderer/accessibility/renderer_accessibility_focus_only.h" |
6 | 6 |
7 #include "content/common/accessibility_node_data.h" | 7 #include "content/common/accessibility_node_data.h" |
8 #include "content/renderer/render_view_impl.h" | 8 #include "content/renderer/render_view_impl.h" |
9 #include "third_party/WebKit/public/web/WebDocument.h" | 9 #include "third_party/WebKit/public/web/WebDocument.h" |
10 #include "third_party/WebKit/public/web/WebElement.h" | 10 #include "third_party/WebKit/public/web/WebElement.h" |
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28 | 28 |
29 RendererAccessibilityFocusOnly::RendererAccessibilityFocusOnly( | 29 RendererAccessibilityFocusOnly::RendererAccessibilityFocusOnly( |
30 RenderViewImpl* render_view) | 30 RenderViewImpl* render_view) |
31 : RendererAccessibility(render_view), | 31 : RendererAccessibility(render_view), |
32 next_id_(kInitialId) { | 32 next_id_(kInitialId) { |
33 } | 33 } |
34 | 34 |
35 RendererAccessibilityFocusOnly::~RendererAccessibilityFocusOnly() { | 35 RendererAccessibilityFocusOnly::~RendererAccessibilityFocusOnly() { |
36 } | 36 } |
37 | 37 |
38 void RendererAccessibilityFocusOnly::HandleWebAccessibilityNotification( | 38 void RendererAccessibilityFocusOnly::HandleWebAccessibilityEvent( |
39 const WebKit::WebAccessibilityObject& obj, | 39 const WebKit::WebAXObject& obj, WebKit::WebAXEvent event) { |
40 WebKit::WebAccessibilityNotification notification) { | |
41 // Do nothing. | 40 // Do nothing. |
42 } | 41 } |
43 | 42 |
44 void RendererAccessibilityFocusOnly::FocusedNodeChanged(const WebNode& node) { | 43 void RendererAccessibilityFocusOnly::FocusedNodeChanged(const WebNode& node) { |
45 // Send the new accessible tree and post a native focus event. | 44 // Send the new accessible tree and post a native focus event. |
46 HandleFocusedNodeChanged(node, true); | 45 HandleFocusedNodeChanged(node, true); |
47 } | 46 } |
48 | 47 |
49 void RendererAccessibilityFocusOnly::DidFinishLoad(WebKit::WebFrame* frame) { | 48 void RendererAccessibilityFocusOnly::DidFinishLoad(WebKit::WebFrame* frame) { |
50 WebView* view = render_view()->GetWebView(); | 49 WebView* view = render_view()->GetWebView(); |
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73 // checking the focused node in WebKit. | 72 // checking the focused node in WebKit. |
74 if (render_view_->HasIMETextFocus()) { | 73 if (render_view_->HasIMETextFocus()) { |
75 node_has_focus = true; | 74 node_has_focus = true; |
76 node_is_editable_text = true; | 75 node_is_editable_text = true; |
77 } else { | 76 } else { |
78 node_has_focus = !node.isNull(); | 77 node_has_focus = !node.isNull(); |
79 node_is_editable_text = | 78 node_is_editable_text = |
80 node_has_focus && render_view_->IsEditableNode(node); | 79 node_has_focus && render_view_->IsEditableNode(node); |
81 } | 80 } |
82 | 81 |
83 std::vector<AccessibilityHostMsg_NotificationParams> notifications; | 82 std::vector<AccessibilityHostMsg_EventParams> events; |
84 notifications.push_back(AccessibilityHostMsg_NotificationParams()); | 83 events.push_back(AccessibilityHostMsg_EventParams()); |
85 AccessibilityHostMsg_NotificationParams& notification = notifications[0]; | 84 AccessibilityHostMsg_EventParams& event = events[0]; |
86 | 85 |
87 // If we want to update the browser's accessibility tree but not send a | 86 // If we want to update the browser's accessibility tree but not send a |
88 // native focus changed notification, we can send a LayoutComplete | 87 // native focus changed event, we can send a LayoutComplete |
89 // notification, which doesn't post a native event on Windows. | 88 // event, which doesn't post a native event on Windows. |
90 notification.notification_type = | 89 event.event_type = |
91 send_focus_event ? | 90 send_focus_event ? |
92 AccessibilityNotificationFocusChanged : | 91 WebKit::WebAXEventFocus : |
93 AccessibilityNotificationLayoutComplete; | 92 WebKit::WebAXEventLayoutComplete; |
94 | 93 |
95 // Set the id that the notification applies to: the root node if nothing | 94 // Set the id that the event applies to: the root node if nothing |
96 // has focus, otherwise the focused node. | 95 // has focus, otherwise the focused node. |
97 notification.id = node_has_focus ? next_id_ : 1; | 96 event.id = node_has_focus ? next_id_ : 1; |
98 | 97 |
99 notification.nodes.resize(2); | 98 event.nodes.resize(2); |
100 AccessibilityNodeData& root = notification.nodes[0]; | 99 AccessibilityNodeData& root = event.nodes[0]; |
101 AccessibilityNodeData& child = notification.nodes[1]; | 100 AccessibilityNodeData& child = event.nodes[1]; |
102 | 101 |
103 // Always include the root of the tree, the document. It always has id 1. | 102 // Always include the root of the tree, the document. It always has id 1. |
104 root.id = 1; | 103 root.id = 1; |
105 root.role = AccessibilityNodeData::ROLE_ROOT_WEB_AREA; | 104 root.role = WebKit::WebAXRoleRootWebArea; |
106 root.state = | 105 root.state = |
107 (1 << AccessibilityNodeData::STATE_READONLY) | | 106 (1 << WebKit::WebAXStateReadonly) | |
108 (1 << AccessibilityNodeData::STATE_FOCUSABLE); | 107 (1 << WebKit::WebAXStateFocusable); |
109 if (!node_has_focus) | 108 if (!node_has_focus) |
110 root.state |= (1 << AccessibilityNodeData::STATE_FOCUSED); | 109 root.state |= (1 << WebKit::WebAXStateFocused); |
111 root.location = gfx::Rect(render_view_->size()); | 110 root.location = gfx::Rect(render_view_->size()); |
112 root.child_ids.push_back(next_id_); | 111 root.child_ids.push_back(next_id_); |
113 | 112 |
114 child.id = next_id_; | 113 child.id = next_id_; |
115 child.role = AccessibilityNodeData::ROLE_GROUP; | 114 child.role = WebKit::WebAXRoleGroup; |
116 | 115 |
117 if (!node.isNull() && node.isElementNode()) { | 116 if (!node.isNull() && node.isElementNode()) { |
118 child.location = gfx::Rect( | 117 child.location = gfx::Rect( |
119 const_cast<WebNode&>(node).to<WebElement>().boundsInViewportSpace()); | 118 const_cast<WebNode&>(node).to<WebElement>().boundsInViewportSpace()); |
120 } else if (render_view_->HasIMETextFocus()) { | 119 } else if (render_view_->HasIMETextFocus()) { |
121 child.location = root.location; | 120 child.location = root.location; |
122 } else { | 121 } else { |
123 child.location = gfx::Rect(); | 122 child.location = gfx::Rect(); |
124 } | 123 } |
125 | 124 |
126 if (node_has_focus) { | 125 if (node_has_focus) { |
127 child.state = | 126 child.state = |
128 (1 << AccessibilityNodeData::STATE_FOCUSABLE) | | 127 (1 << WebKit::WebAXStateFocusable) | |
129 (1 << AccessibilityNodeData::STATE_FOCUSED); | 128 (1 << WebKit::WebAXStateFocused); |
130 if (!node_is_editable_text) | 129 if (!node_is_editable_text) |
131 child.state |= (1 << AccessibilityNodeData::STATE_READONLY); | 130 child.state |= (1 << WebKit::WebAXStateReadonly); |
132 } | 131 } |
133 | 132 |
134 #ifndef NDEBUG | 133 #ifndef NDEBUG |
135 if (logging_) { | 134 if (logging_) { |
136 LOG(INFO) << "Accessibility update: \n" | 135 LOG(INFO) << "Accessibility update: \n" |
137 << "routing id=" << routing_id() | 136 << "routing id=" << routing_id() |
138 << " notification=" | 137 << " event=" |
139 << AccessibilityNotificationToString(notification.notification_type) | 138 << AccessibilityEventToString(event.event_type) |
140 << "\n" << notification.nodes[0].DebugString(true); | 139 << "\n" << event.nodes[0].DebugString(true); |
141 } | 140 } |
142 #endif | 141 #endif |
143 | 142 |
144 Send(new AccessibilityHostMsg_Notifications(routing_id(), notifications)); | 143 Send(new AccessibilityHostMsg_Events(routing_id(), events)); |
145 | 144 |
146 // Increment the id, wrap back when we get past a million. | 145 // Increment the id, wrap back when we get past a million. |
147 next_id_++; | 146 next_id_++; |
148 if (next_id_ > 1000000) | 147 if (next_id_ > 1000000) |
149 next_id_ = kInitialId; | 148 next_id_ = kInitialId; |
150 } | 149 } |
151 | 150 |
152 } // namespace content | 151 } // namespace content |
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