athena: Provide a temporary onTextInputBoxFocused.addListener implementation.

athena/virtual_keyboard/virtual_keyboard_bindings_impl.cc

Index: athena/virtual_keyboard/virtual_keyboard_bindings_impl.cc
diff --git a/athena/virtual_keyboard/virtual_keyboard_bindings_impl.cc b/athena/virtual_keyboard/virtual_keyboard_bindings_impl.cc
index 55fdfc95d839460550f72dcf12f5b7ce21f971d6..a04520c3dd46303c8a107cda36427dda6e81ad82 100644
--- a/athena/virtual_keyboard/virtual_keyboard_bindings_impl.cc
+++ b/athena/virtual_keyboard/virtual_keyboard_bindings_impl.cc
@@ -106,6 +106,17 @@ class VKBindings : public gin::Wrappable<VKBindings> {
       return;
     chrome->Set(gin::StringToSymbol(isolate, "virtualKeyboardPrivate"),
                 controller.ToV8());
+
+    const std::string kInputBoxFocusedEvent =
+        "chrome.virtualKeyboardPrivate.onTextInputBoxFocused = {};"
+        "chrome.virtualKeyboardPrivate.onTextInputBoxFocused.addListener = "
+        "   function(callback) { "
+        "     window.setTimeout(function() {"
+        "       callback({type: 'text'});"
+        "     }, 100);"
+        "   };";
+    render_view->GetMainRenderFrame()->ExecuteJavaScript(
+        base::UTF8ToUTF16(kInputBoxFocusedEvent));

[bshe, 2014/06/20 21:00:30]

Just curios when is this javascript been executed? 

[sadrul, 2014/06/20 22:24:46]

This happens when the page navigates to chrome://keyboard/, before the JS on the
page (e.g. from keyboard.js).

   }
 
  private: