Implement auto read on load complete

chrome/browser/resources/chromeos/chromevox/cvox2/background/desktop_automation_handler.js

Index: chrome/browser/resources/chromeos/chromevox/cvox2/background/desktop_automation_handler.js
diff --git a/chrome/browser/resources/chromeos/chromevox/cvox2/background/desktop_automation_handler.js b/chrome/browser/resources/chromeos/chromevox/cvox2/background/desktop_automation_handler.js
index bbb2bfa2bf28882b9aee56b546c4bcd796951512..2b56429048988d69a4848ee11ffe301adb45f3d3 100644
--- a/chrome/browser/resources/chromeos/chromevox/cvox2/background/desktop_automation_handler.js
+++ b/chrome/browser/resources/chromeos/chromevox/cvox2/background/desktop_automation_handler.js
@@ -297,6 +297,15 @@ DesktopAutomationHandler.prototype = {
       // ChromeVox.
       this.createTextEditHandlerIfNeeded_(focus);
 
+      // If auto read is set, skip focus recovery and start reading from the top.

[dmazzoni, 2016/12/15 17:07:02]

Have you considered doing auto-read only if there's no focus to recover?

I could be wrong but I think JAWS might do something more nuanced, because
for a simple document it reads from the top, but on apps with autofocus it
jumps right there, and I think it may be smart about reloads too.

I'm thinking good options would be:

Read the page when it finishes loading:
[ ] Never
[ ] Only the first time and when nothing has focus
[ ] Always

+      if (localStorage['autoRead'] == 'true' &&
+          AutomationUtil.getTopLevelRoot(evt.target) == evt.target) {
+        ChromeVoxState.instance.setCurrentRange(cursors.Range.fromNode(evt.target));
+        cvox.ChromeVox.tts.stop();
+        CommandHandler.onCommand('readFromHere');
+        return;
+      }
+
       // If initial focus was already placed on this page (e.g. if a user starts
       // tabbing before load complete), then don't move ChromeVox's position on
       // the page.