1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
|
// Copyright (c) 2012 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.
// IPC messages for accessibility.
// Multiply-included message file, hence no include guard.
#include "content/common/ax_content_node_data.h"
#include "content/common/content_export.h"
#include "content/common/view_message_enums.h"
#include "ipc/ipc_message_macros.h"
#include "ipc/ipc_message_utils.h"
#include "ipc/ipc_param_traits.h"
#include "ipc/param_traits_macros.h"
#include "third_party/WebKit/public/web/WebAXEnums.h"
#include "ui/accessibility/ax_action_data.h"
#include "ui/accessibility/ax_node_data.h"
#include "ui/accessibility/ax_relative_bounds.h"
#include "ui/accessibility/ax_tree_update.h"
#include "ui/gfx/transform.h"
#undef IPC_MESSAGE_EXPORT
#define IPC_MESSAGE_EXPORT CONTENT_EXPORT
#define IPC_MESSAGE_START AccessibilityMsgStart
IPC_ENUM_TRAITS_MAX_VALUE(content::AXContentIntAttribute,
content::AX_CONTENT_INT_ATTRIBUTE_LAST)
IPC_ENUM_TRAITS_MAX_VALUE(ui::AXAction, ui::AX_ACTION_LAST)
IPC_STRUCT_TRAITS_BEGIN(ui::AXActionData)
IPC_STRUCT_TRAITS_MEMBER(action)
IPC_STRUCT_TRAITS_MEMBER(target_node_id)
IPC_STRUCT_TRAITS_MEMBER(flags)
IPC_STRUCT_TRAITS_MEMBER(anchor_node_id)
IPC_STRUCT_TRAITS_MEMBER(anchor_offset)
IPC_STRUCT_TRAITS_MEMBER(focus_node_id)
IPC_STRUCT_TRAITS_MEMBER(focus_offset)
IPC_STRUCT_TRAITS_MEMBER(target_rect)
IPC_STRUCT_TRAITS_MEMBER(target_point)
IPC_STRUCT_TRAITS_MEMBER(value)
IPC_STRUCT_TRAITS_END()
IPC_STRUCT_TRAITS_BEGIN(content::AXContentNodeData)
IPC_STRUCT_TRAITS_MEMBER(id)
IPC_STRUCT_TRAITS_MEMBER(role)
IPC_STRUCT_TRAITS_MEMBER(state)
IPC_STRUCT_TRAITS_MEMBER(location)
IPC_STRUCT_TRAITS_MEMBER(transform)
IPC_STRUCT_TRAITS_MEMBER(string_attributes)
IPC_STRUCT_TRAITS_MEMBER(int_attributes)
IPC_STRUCT_TRAITS_MEMBER(float_attributes)
IPC_STRUCT_TRAITS_MEMBER(bool_attributes)
IPC_STRUCT_TRAITS_MEMBER(intlist_attributes)
IPC_STRUCT_TRAITS_MEMBER(html_attributes)
IPC_STRUCT_TRAITS_MEMBER(child_ids)
IPC_STRUCT_TRAITS_MEMBER(content_int_attributes)
IPC_STRUCT_TRAITS_MEMBER(offset_container_id)
IPC_STRUCT_TRAITS_END()
IPC_STRUCT_TRAITS_BEGIN(content::AXContentTreeData)
IPC_STRUCT_TRAITS_MEMBER(tree_id)
IPC_STRUCT_TRAITS_MEMBER(parent_tree_id)
IPC_STRUCT_TRAITS_MEMBER(focused_tree_id)
IPC_STRUCT_TRAITS_MEMBER(url)
IPC_STRUCT_TRAITS_MEMBER(title)
IPC_STRUCT_TRAITS_MEMBER(mimetype)
IPC_STRUCT_TRAITS_MEMBER(doctype)
IPC_STRUCT_TRAITS_MEMBER(loaded)
IPC_STRUCT_TRAITS_MEMBER(loading_progress)
IPC_STRUCT_TRAITS_MEMBER(focus_id)
IPC_STRUCT_TRAITS_MEMBER(sel_anchor_object_id)
IPC_STRUCT_TRAITS_MEMBER(sel_anchor_offset)
IPC_STRUCT_TRAITS_MEMBER(sel_anchor_affinity)
IPC_STRUCT_TRAITS_MEMBER(sel_focus_object_id)
IPC_STRUCT_TRAITS_MEMBER(sel_focus_offset)
IPC_STRUCT_TRAITS_MEMBER(sel_focus_affinity)
IPC_STRUCT_TRAITS_MEMBER(routing_id)
IPC_STRUCT_TRAITS_MEMBER(parent_routing_id)
IPC_STRUCT_TRAITS_END()
IPC_STRUCT_TRAITS_BEGIN(content::AXContentTreeUpdate)
IPC_STRUCT_TRAITS_MEMBER(has_tree_data)
IPC_STRUCT_TRAITS_MEMBER(tree_data)
IPC_STRUCT_TRAITS_MEMBER(node_id_to_clear)
IPC_STRUCT_TRAITS_MEMBER(root_id)
IPC_STRUCT_TRAITS_MEMBER(nodes)
IPC_STRUCT_TRAITS_END()
IPC_STRUCT_BEGIN(AccessibilityHostMsg_EventParams)
// The tree update.
IPC_STRUCT_MEMBER(content::AXContentTreeUpdate, update)
// Type of event.
IPC_STRUCT_MEMBER(ui::AXEvent, event_type)
// ID of the node that the event applies to.
IPC_STRUCT_MEMBER(int, id)
// The source of this event.
IPC_STRUCT_MEMBER(ui::AXEventFrom, event_from)
IPC_STRUCT_END()
IPC_STRUCT_BEGIN(AccessibilityHostMsg_LocationChangeParams)
// ID of the object whose location is changing.
IPC_STRUCT_MEMBER(int, id)
// The object's new location info.
IPC_STRUCT_MEMBER(ui::AXRelativeBounds, new_location)
IPC_STRUCT_END()
IPC_STRUCT_BEGIN(AccessibilityHostMsg_FindInPageResultParams)
// The find in page request id.
IPC_STRUCT_MEMBER(int, request_id)
// The index of the result match.
IPC_STRUCT_MEMBER(int, match_index)
// The id of the accessibility object for the start of the match range.
IPC_STRUCT_MEMBER(int, start_id)
// The character offset into the text of the start object.
IPC_STRUCT_MEMBER(int, start_offset)
// The id of the accessibility object for the end of the match range.
IPC_STRUCT_MEMBER(int, end_id)
// The character offset into the text of the end object.
IPC_STRUCT_MEMBER(int, end_offset)
IPC_STRUCT_END()
// Messages sent from the browser to the renderer.
// Relay a request from assistive technology to perform an action,
// such as focusing or clicking on a node.
IPC_MESSAGE_ROUTED1(AccessibilityMsg_PerformAction,
ui::AXActionData /* action parameters */)
// Determine the accessibility object under a given point.
//
// If the target is an object with a child frame (like if the hit test
// result is an iframe element), it responds with
// AccessibilityHostMsg_ChildFrameHitTestResult so that the
// hit test can be performed recursively on the child frame. Otherwise
// it fires an accessibility event of type ui::AX_EVENT_HOVER on the target.
IPC_MESSAGE_ROUTED1(AccessibilityMsg_HitTest,
gfx::Point /* location to test */)
// Relay a request from assistive technology to set accessibility focus
// to a given node. On platforms where this is used (currently Android),
// inline text boxes are only computed for the node with accessibility focus,
// rather than for the whole tree.
IPC_MESSAGE_ROUTED1(AccessibilityMsg_SetAccessibilityFocus,
int /* object id */)
// Tells the render view that a AccessibilityHostMsg_Events
// message was processed and it can send additional events. The argument
// must be the same as the ack_token passed to AccessibilityHostMsg_Events.
IPC_MESSAGE_ROUTED1(AccessibilityMsg_Events_ACK,
int /* ack_token */)
// Tell the renderer to reset and send a new accessibility tree from
// scratch because the browser is out of sync. It passes a sequential
// reset token. This should be rare, and if we need reset the same renderer
// too many times we just kill it. After sending a reset, the browser ignores
// incoming accessibility IPCs until it receives one with the matching reset
// token. Conversely, it ignores IPCs with a reset token if it was not
// expecting a reset.
IPC_MESSAGE_ROUTED1(AccessibilityMsg_Reset,
int /* reset token */)
// Kill the renderer because we got a fatal error in the accessibility tree
// and we've already reset too many times.
IPC_MESSAGE_ROUTED0(AccessibilityMsg_FatalError)
// Request a one-time snapshot of the accessibility tree without
// enabling accessibility if it wasn't already enabled. The passed id
// will be returned in the AccessibilityHostMsg_SnapshotResponse message.
IPC_MESSAGE_ROUTED1(AccessibilityMsg_SnapshotTree,
int /* callback id */)
// Messages sent from the renderer to the browser.
// Sent to notify the browser about renderer accessibility events.
// The browser responds with a AccessibilityMsg_Events_ACK with the same
// ack_token.
// The second parameter, reset_token, is set if this IPC was sent in response
// to a reset request from the browser. When the browser requests a reset,
// it ignores incoming IPCs until it sees one with the correct reset token.
// Any other time, it ignores IPCs with a reset token.
IPC_MESSAGE_ROUTED3(
AccessibilityHostMsg_Events,
std::vector<AccessibilityHostMsg_EventParams> /* events */,
int /* reset_token */,
int /* ack_token */)
// Sent to update the browser of the location of accessibility objects.
IPC_MESSAGE_ROUTED1(
AccessibilityHostMsg_LocationChanges,
std::vector<AccessibilityHostMsg_LocationChangeParams>)
// Sent to update the browser of Find In Page results.
IPC_MESSAGE_ROUTED1(
AccessibilityHostMsg_FindInPageResult,
AccessibilityHostMsg_FindInPageResultParams)
// Sent in response to AccessibilityMsg_HitTest.
IPC_MESSAGE_ROUTED2(AccessibilityHostMsg_ChildFrameHitTestResult,
gfx::Point /* location tested */,
int /* node id of result */)
// Sent in response to AccessibilityMsg_SnapshotTree. The callback id that was
// passed to the request will be returned in |callback_id|, along with
// a standalone snapshot of the accessibility tree.
IPC_MESSAGE_ROUTED2(AccessibilityHostMsg_SnapshotResponse,
int /* callback_id */,
content::AXContentTreeUpdate)
|
