Defect 248426: Speak rendered text when no selection is made on Mac

content/renderer/render_view_impl.cc

Index: content/renderer/render_view_impl.cc
diff --git a/content/renderer/render_view_impl.cc b/content/renderer/render_view_impl.cc
index 154c0cb394b79dffdb49ebec54066ddb1cfd9ce1..f33765a2ffa9735fa886673bf45d9af59741472e 100644
--- a/content/renderer/render_view_impl.cc
+++ b/content/renderer/render_view_impl.cc
@@ -1016,6 +1016,16 @@ void RenderViewImpl::PluginFocusChanged(bool focused, int plugin_id) {
   Send(new ViewHostMsg_PluginFocusChanged(routing_id(), focused, plugin_id));
 }
 
+void RenderViewImpl::OnGetRenderedText() {
+  if (!webview())
+    return;
+  // Get rendered text from WebLocalFrame.
+  std::string text = webview()->mainFrame()->contentAsText(
+      std::numeric_limits<size_t>::max()).utf8();

[jamesr, 2014/07/01 01:33:29]

this could be gigantic and there's a fairly small limit on the size of IPCs that
the browser will accept before it kills the render process. did you test this on
a page with lots of text?

[sarka, 2014/07/01 02:03:10]

Apparently I haven't tested with lots of text. I wouldn't mind taking an
alternate route though. Doesn't WebContents->SelectAll() do something similar?

+
+  Send(new ViewMsg_GetRenderedTextCompleted(routing_id(), text));
+}
+
 void RenderViewImpl::StartPluginIme() {
   IPC::Message* msg = new ViewHostMsg_StartPluginIme(routing_id());
   // This message can be sent during event-handling, and needs to be delivered
@@ -1128,6 +1138,8 @@ bool RenderViewImpl::OnMessageReceived(const IPC::Message& message) {
                         OnUpdateTopControlsState)
     IPC_MESSAGE_HANDLER(ViewMsg_ExtractSmartClipData, OnExtractSmartClipData)
 #elif defined(OS_MACOSX)
+    IPC_MESSAGE_HANDLER(ViewMsg_GetRenderedText,
+                        OnGetRenderedText)
     IPC_MESSAGE_HANDLER(ViewMsg_PluginImeCompositionCompleted,
                         OnPluginImeCompositionCompleted)
     IPC_MESSAGE_HANDLER(ViewMsg_SelectPopupMenuItem, OnSelectPopupMenuItem)