[Android] Select text when stylus first button is pressed.

content/browser/renderer_host/render_widget_host_view_android.cc

Index: content/browser/renderer_host/render_widget_host_view_android.cc
diff --git a/content/browser/renderer_host/render_widget_host_view_android.cc b/content/browser/renderer_host/render_widget_host_view_android.cc
index 120161d67e823db56a39e5bace562b2155e70849..f25fb8a2b6dd0330d2d6f32f76f733f0d22753d0 100644
--- a/content/browser/renderer_host/render_widget_host_view_android.cc
+++ b/content/browser/renderer_host/render_widget_host_view_android.cc
@@ -542,6 +542,12 @@ void RenderWidgetHostViewAndroid::OnSmartClipDataExtracted(
     content_view_core_->OnSmartClipDataExtracted(result);
 }
 
+bool RenderWidgetHostViewAndroid::ShouldConvertToMouseEvent(
+    const ui::MotionEvent& event) {
+  // TODO(changwan)
+  return true;
+}
+
 bool RenderWidgetHostViewAndroid::OnTouchEvent(
     const ui::MotionEvent& event) {
   if (!host_)
@@ -550,6 +556,11 @@ bool RenderWidgetHostViewAndroid::OnTouchEvent(
   if (!gesture_provider_.OnTouchEvent(event))
     return false;
 
+  if (ShouldConvertToMouseEvent(event)) {

[jdduke (slow), 2014/06/19 15:10:11]

Ah, yeah, so we would definitely need to move this check *before* the call to
|if (!gesture_provider_.OnTouchEvent(event))|, and use a separate gesture
detector altogether.

[jdduke (slow), 2014/06/20 02:14:27]

We'll probably want logic along the lines of:

if (event.GetAction() == ACTION_DOWN && ShouldConvertToMouseEvent(event))
  convert_touch_sequence_to_mouse_ = true;

if (convert_touch_sequence_to_mouse_) {
  SendMouseEvent(CreateWebMouseEventFromMotionEvent(event));
  gesture_provider_.OnTouchEventAck(false);
  if (event.GetAction() == ACTION_UP || event.GetAction() == ACTION_CANCEL)
    convert_touch_sequence_to_mouse_ = false;
  return true;
}

[jdduke (slow), 2014/06/20 02:23:39]

Actually this should probably be:

if (event.GetAction() == ACTION_DOWN)
  convert_touch_sequence_to_mouse_ = ShouldConvertToMouseEvent(event);

[Changwan Ryu, 2014/06/20 08:19:53]

Done.

[Changwan Ryu, 2014/06/20 08:19:53]

Done.

[Changwan Ryu, 2014/06/20 08:19:53]

Moved it up and added a TODO.

+    SendMouseEvent(CreateWebMouseEventFromMotionEvent(event));
+    return true;
+  }
+
   // Short-circuit touch forwarding if no touch handlers exist.
   if (!host_->ShouldForwardTouchEvent()) {
     const bool event_consumed = false;