Support for Adaptive Handle Orientation

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 e6257f2edfcb0b614ea060f9ff61bd473e5c08cc..f7690667d88ea89705963f6db56bff8b269ff690 100644
--- a/content/browser/renderer_host/render_widget_host_view_android.cc
+++ b/content/browser/renderer_host/render_widget_host_view_android.cc
@@ -269,6 +269,9 @@ scoped_ptr<ui::TouchSelectionController> CreateSelectionController(
       gfx::ViewConfiguration::GetLongPressTimeoutInMs());
   config.tap_slop = gfx::ViewConfiguration::GetTouchSlopInDips();
   config.show_on_tap_for_empty_editable = false;
+  // TODO(aviD): Enable adaptive handle orientation after behavior is
+  // consistent on webview

[jdduke (slow), 2015/09/09 22:19:50]

Please keep the flag check here, otherwise it's of no use. Rather, we should
just not add the flag by default. I'd like to be able to test this locally with
a flag.

[AviD, 2015/09/10 06:06:13]

Done.

+  config.enable_adaptive_handle_orientation = false;
   config.enable_longpress_drag_selection =
       base::CommandLine::ForCurrentProcess()->HasSwitch(
           switches::kEnableLongpressDragSelection);
@@ -1318,6 +1321,15 @@ void RenderWidgetHostViewAndroid::OnFrameMetadataUpdated(
     selection_controller_->OnSelectionBoundsChanged(
         ConvertSelectionBound(frame_metadata.selection.start),
         ConvertSelectionBound(frame_metadata.selection.end));
+
+    // Set parameters for adaptive handle orientation.
+    gfx::SizeF viewport_size(frame_metadata.scrollable_viewport_size);
+    viewport_size.Scale(frame_metadata.page_scale_factor);
+    gfx::RectF viewport_rect(
+        frame_metadata.location_bar_content_translation.x(),
+        frame_metadata.location_bar_content_translation.y(),
+        viewport_size.width(), viewport_size.height());
+    selection_controller_->OnViewportChanged(viewport_rect);
   }
 
   // All offsets and sizes are in CSS pixels.