diff options
Diffstat (limited to 'chromium/docs/accessibility/overview.md')
| -rw-r--r-- | chromium/docs/accessibility/overview.md | 18 |
1 files changed, 12 insertions, 6 deletions
diff --git a/chromium/docs/accessibility/overview.md b/chromium/docs/accessibility/overview.md index 7ab969bbb98..ca77b707cbe 100644 --- a/chromium/docs/accessibility/overview.md +++ b/chromium/docs/accessibility/overview.md @@ -459,9 +459,9 @@ layer translates WebAXObjects into [AXContentNodeData], which is a subclass of cross-platform accessibility tree. The translation is implemented in [BlinkAXTreeSource]. This translation happens on the renderer side, so the ui::AXNodeData tree now needs to be sent to the browser, which is done by -sending [AccessibilityHostMsg_EventParams] with the payload being serialized -delta-updates to the tree, so that changes that happen on the renderer side can -be reflected on the browser side. +calling the remote method [ax.mojom.RenderAccessibilityHost::HandleAXEvents()] +with the payload being serialized delta-updates to the tree, so that changes +that happen on the renderer side can be reflected on the browser side. On the browser side, these IPCs are received by [RenderFrameHostImpl], and then usually forwarded to [BrowserAccessibilityManager] which is responsible for: @@ -477,8 +477,11 @@ usually forwarded to [BrowserAccessibilityManager] which is responsible for: 3. Dispatching incoming accessibility actions to the appropriate recipient, via [BrowserAccessibilityDelegate]. For messages destined for a renderer, [RenderFrameHostImpl], which is a BrowserAccessibilityDelegate, is - responsible for sending appropriate `AccessibilityMsg_Foo` IPCs to the - renderer, where they will be received by [RenderAccessibilityImpl]. + responsible for calling the remote method + [ax.mojom.RenderAccessibility.PerformAction()], implemented by the renderer, + with the appropriate payload (of type [ax.mojom.AXActionData]). This IPC call + will be received by [RenderAccessibilityManager], which will then relay on + the [RenderAccessibilityImpl] where the actual logic is implemented. On Chrome OS, RenderFrameHostImpl does not route events to BrowserAccessibilityManager at all, since there is no platform screenreader @@ -507,7 +510,9 @@ which is renderer-side code, and in JavaScript by the [automation API]. The API is defined by [automation.idl], which must be kept synchronized with [ax_enums.mojom]. -[AccessibilityHostMsg_EventParams]: https://cs.chromium.org/chromium/src/content/common/accessibility_messages.h?sq=package:chromium&l=75 +[ax.mojom.AXActionData]: https://source.chromium.org/chromium/chromium/src/+/master:ui/accessibility/mojom/ax_action_data.mojom;l=13 +[ax.mojom.RenderAccessibilityHost::HandleAXEvents()]: https://source.chromium.org/chromium/chromium/src/+/master:content/common/render_accessibility.mojom;l=47 +[ax.mojom.RenderAccessibility.PerformAction()]: https://source.chromium.org/chromium/chromium/src/+/master:content/common/render_accessibility.mojom;l=86 [AutomationInternalCustomBindings]: https://cs.chromium.org/chromium/src/extensions/renderer/api/automation/automation_internal_custom_bindings.h [AXContentNodeData]: https://cs.chromium.org/chromium/src/content/common/ax_content_node_data.h [AXLayoutObject]: https://cs.chromium.org/chromium/src/third_party/blink/renderer/modules/accessibility/ax_layout_object.h @@ -525,6 +530,7 @@ is defined by [automation.idl], which must be kept synchronized with [ViewAccessibility]: https://cs.chromium.org/chromium/src/ui/views/accessibility/view_accessibility.h [Node]: https://cs.chromium.org/chromium/src/third_party/blink/renderer/core/dom/node.h [RenderAccessibilityImpl]: https://cs.chromium.org/chromium/src/content/renderer/accessibility/render_accessibility_impl.h +[RenderAccessibilityManager]: https://source.chromium.org/chromium/chromium/src/+/master:content/renderer/accessibility/render_accessibility_manager.h [RenderFrameHostImpl]: https://cs.chromium.org/chromium/src/content/browser/frame_host/render_frame_host_impl.h [ui::AXNodeData]: https://cs.chromium.org/chromium/src/ui/accessibility/ax_node_data.h [WebAXObject]: https://cs.chromium.org/chromium/src/third_party/blink/public/web/web_ax_object.h |