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

content/browser/renderer_host/render_widget_host_view_android.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "content/browser/renderer_host/render_widget_host_view_android.h"
 
 #include <android/bitmap.h>
 
 #include "base/android/sys_utils.h"
 #include "base/basictypes.h"
@@ skipping 176 matching lines @@
           switches::kDisableOverscrollEdgeEffect)),
       overscroll_effect_(OverscrollGlow::Create(overscroll_effect_enabled_)),
       gesture_provider_(CreateGestureProviderConfig(), this),
       flush_input_requested_(false),
       accelerated_surface_route_id_(0),
       using_synchronous_compositor_(SynchronousCompositorImpl::FromID(
                                         widget_host->GetProcess()->GetID(),
                                         widget_host->GetRoutingID()) != NULL),
       frame_evictor_(new DelegatedFrameEvictor(this)),
       locks_on_frame_count_(0),
-      observing_root_window_(false) {
+      observing_root_window_(false),
+      gesture_text_selector_(new GestureTextSelector(this)) {
   host_->SetView(this);
   SetContentViewCore(content_view_core);
   ImageTransportFactoryAndroid::AddObserver(this);
 }
 
 RenderWidgetHostViewAndroid::~RenderWidgetHostViewAndroid() {
   ImageTransportFactoryAndroid::RemoveObserver(this);
   SetContentViewCore(NULL);
   DCHECK(ack_callbacks_.empty());
   if (resource_collection_.get())
@@ skipping 343 matching lines @@
 }
 
 bool RenderWidgetHostViewAndroid::OnTouchEvent(
     const ui::MotionEvent& event) {
   if (!host_)
     return false;
 
   if (!gesture_provider_.OnTouchEvent(event))
     return false;
 
+  if (gesture_text_selector_->OnTouchEvent(event)) {
+    gesture_provider_.OnTouchEventAck(false);
+    return true;
+  }
+
   // Short-circuit touch forwarding if no touch handlers exist.
   if (!host_->ShouldForwardTouchEvent()) {
     const bool event_consumed = false;
     gesture_provider_.OnTouchEventAck(event_consumed);
     return true;
   }
 
   SendTouchEvent(CreateWebTouchEventFromMotionEvent(event));
   return true;
 }
@@ skipping 709 matching lines @@
 
 void RenderWidgetHostViewAndroid::RunAckCallbacks() {
   while (!ack_callbacks_.empty()) {
     ack_callbacks_.front().Run();
     ack_callbacks_.pop();
   }
 }
 
 void RenderWidgetHostViewAndroid::OnGestureEvent(
     const ui::GestureEventData& gesture) {
+  if (gesture_text_selector_->OnGestureEvent(gesture)) {

[jdduke (slow), 2014/06/24 15:38:37]

Nit: No braces necessary (just add a line break).

[Changwan Ryu, 2014/06/25 07:26:21]

Done.

+    return;
+  }
   SendGestureEvent(CreateWebGestureEventFromGestureEventData(gesture));
 }
 
 void RenderWidgetHostViewAndroid::OnCompositingDidCommit() {
   RunAckCallbacks();
 }
 
 void RenderWidgetHostViewAndroid::OnDetachCompositor() {
   DCHECK(content_view_core_);
   DCHECK(!using_synchronous_compositor_);
@@ skipping 127 matching lines @@
   // Define the criteria here. If say the 16 texture readback is
   // supported we should go with that (this degrades quality)
   // or stick back to the default format.
   if (base::android::SysUtils::IsLowEndDevice()) {
     if (IsReadbackConfigSupported(SkBitmap::kRGB_565_Config))
       return SkBitmap::kRGB_565_Config;
   }
   return SkBitmap::kARGB_8888_Config;
 }
 
+void RenderWidgetHostViewAndroid::ShowSelectionHandlesAutomatically() {
+  if (content_view_core_)
+    content_view_core_->ShowSelectionHandlesAutomatically();
+}
+
+void RenderWidgetHostViewAndroid::SelectRange(
+    float x1, float y1, float x2, float y2) {
+  if (content_view_core_)
+    static_cast<WebContentsImpl*>(content_view_core_->GetWebContents())->

[jdduke (slow), 2014/06/24 15:38:37]

We'll want to ask sievers@ or aelias@ about WebContentsImpl usage here, I had
thought we used WebContents directly in RWHVAndroid, but it looks like this is
the first such usage.  

[Changwan Ryu, 2014/06/25 07:26:21]

Added a TODO

+        SelectRange(gfx::Point(x1, y1), gfx::Point(x2, y2));
+}
+
+void RenderWidgetHostViewAndroid::SelectWord(float x, float y) {
+  if (host_) {
+    host_->MoveCaret(gfx::Point(x, y));
+    RenderViewHost* render_view_host = RenderViewHost::From(host_);
+    if (render_view_host)
+      render_view_host->SelectWordAroundCaret();
+  }
+}
+
+void RenderWidgetHostViewAndroid::Unselect() {
+  if (content_view_core_)
+    content_view_core_->GetWebContents()->Unselect();
+}
+
 // static
 void RenderWidgetHostViewBase::GetDefaultScreenInfo(
     blink::WebScreenInfo* results) {
   const gfx::Display& display =
       gfx::Screen::GetNativeScreen()->GetPrimaryDisplay();
   results->rect = display.bounds();
   // TODO(husky): Remove any system controls from availableRect.
   results->availableRect = display.work_area();
   results->deviceScaleFactor = display.device_scale_factor();
   results->orientationAngle = display.RotationAsDegree();
   gfx::DeviceDisplayInfo info;
   results->depth = info.GetBitsPerPixel();
   results->depthPerComponent = info.GetBitsPerComponent();
   results->isMonochrome = (results->depthPerComponent == 0);
 }
 
 } // namespace content