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

content/browser/android/content_view_core_impl.cc

 // Copyright 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/android/content_view_core_impl.h"
 
 #include "base/android/jni_android.h"
 #include "base/android/jni_array.h"
 #include "base/android/jni_string.h"
 #include "base/android/scoped_java_ref.h"
@@ skipping 37 matching lines @@
 #include "content/public/common/content_client.h"
 #include "content/public/common/content_switches.h"
 #include "content/public/common/menu_item.h"
 #include "content/public/common/page_transition_types.h"
 #include "content/public/common/user_agent.h"
 #include "jni/ContentViewCore_jni.h"
 #include "third_party/WebKit/public/web/WebBindings.h"
 #include "third_party/WebKit/public/web/WebInputEvent.h"
 #include "ui/base/android/view_android.h"
 #include "ui/base/android/window_android.h"
+#include "ui/events/gesture_detection/motion_event.h"
 #include "ui/gfx/android/java_bitmap.h"
 #include "ui/gfx/screen.h"
 #include "ui/gfx/size_conversions.h"
 #include "ui/gfx/size_f.h"
 
 using base::android::AttachCurrentThread;
 using base::android::ConvertJavaStringToUTF16;
 using base::android::ConvertJavaStringToUTF8;
 using base::android::ConvertUTF16ToJavaString;
 using base::android::ConvertUTF8ToJavaString;
 using base::android::ScopedJavaGlobalRef;
 using base::android::ScopedJavaLocalRef;
 using blink::WebGestureEvent;
 using blink::WebInputEvent;
+using blink::WebMouseEvent;
 
 // Describes the type and enabled state of a select popup item.
 namespace {
 
 enum {
 #define DEFINE_POPUP_ITEM_TYPE(name, value) POPUP_ITEM_TYPE_##name = value,
 #include "content/browser/android/popup_item_type_list.h"
 #undef DEFINE_POPUP_ITEM_TYPE
 };
 
@@ skipping 133 matching lines @@
     ui::WindowAndroid* window_android,
     jobject java_bridge_retained_object_set)
     : WebContentsObserver(web_contents),
       java_ref_(env, obj),
       web_contents_(static_cast<WebContentsImpl*>(web_contents)),
       root_layer_(cc::SolidColorLayer::Create()),
       dpi_scale_(GetPrimaryDisplayDeviceScaleFactor()),
       view_android_(view_android),
       window_android_(window_android),
       device_orientation_(0),
-      accessibility_enabled_(false) {
+      accessibility_enabled_(false),
+      mouse_drag_start_x_(0),
+      mouse_drag_start_y_(0) {
   CHECK(web_contents) <<
       "A ContentViewCoreImpl should be created with a valid WebContents.";
 
   root_layer_->SetBackgroundColor(GetBackgroundColor(env, obj));
   gfx::Size physical_size(
       Java_ContentViewCore_getPhysicalBackingWidthPix(env, obj),
       Java_ContentViewCore_getPhysicalBackingHeightPix(env, obj));
   root_layer_->SetBounds(physical_size);
   root_layer_->SetIsDrawable(true);
 
@@ skipping 703 matching lines @@
                                            jint action_index,
                                            jfloat pos_x_0,
                                            jfloat pos_y_0,
                                            jfloat pos_x_1,
                                            jfloat pos_y_1,
                                            jint pointer_id_0,
                                            jint pointer_id_1,
                                            jfloat touch_major_0,
                                            jfloat touch_major_1,
                                            jfloat raw_pos_x,
-                                           jfloat raw_pos_y) {
+                                           jfloat raw_pos_y,
+                                           jint android_tool_type,
+                                           jint android_button_state) {
   RenderWidgetHostViewAndroid* rwhv = GetRenderWidgetHostViewAndroid();
   // Avoid synthesizing a touch event if it cannot be forwarded.
   if (!rwhv)
     return false;
 
   MotionEventAndroid event(1.f / dpi_scale(),
                            env,
                            motion_event,
                            time_ms,
                            android_action,
                            pointer_count,
                            history_size,
                            action_index,
                            pos_x_0,
                            pos_y_0,
                            pos_x_1,
                            pos_y_1,
                            pointer_id_0,
                            pointer_id_1,
                            touch_major_0,
                            touch_major_1,
                            raw_pos_x,
                            raw_pos_y);
 
+  switch (event.GetAction()) {
+    case ui::MotionEvent::ACTION_DOWN:
+      mouse_drag_start_x_ = pos_x_0;
+      mouse_drag_start_y_ = pos_y_0;
+      break;
+    case ui::MotionEvent::ACTION_MOVE:
+    case ui::MotionEvent::ACTION_UP:
+      SelectBetweenCoordinates(env, obj, mouse_drag_start_x_,
+                               mouse_drag_start_y_, pos_x_0, pos_y_0);
+      break;
+    default:
+      break;
+  }
+
   return rwhv->OnTouchEvent(event);
 }
 
 float ContentViewCoreImpl::GetDpiScale() const {
   return dpi_scale_;
 }
 
 jboolean ContentViewCoreImpl::SendMouseMoveEvent(JNIEnv* env,
                                                  jobject obj,
                                                  jlong time_ms,
                                                  jfloat x,
                                                  jfloat y) {
   RenderWidgetHostViewAndroid* rwhv = GetRenderWidgetHostViewAndroid();
   if (!rwhv)
     return false;
 
   blink::WebMouseEvent event = WebMouseEventBuilder::Build(
       WebInputEvent::MouseMove,
-      blink::WebMouseEvent::ButtonNone,
+      WebMouseEvent::ButtonNone,
       time_ms / 1000.0, x / dpi_scale(), y / dpi_scale(), 0, 1);
 
   rwhv->SendMouseEvent(event);
   return true;
 }
 
 jboolean ContentViewCoreImpl::SendMouseWheelEvent(JNIEnv* env,
                                                   jobject obj,
                                                   jlong time_ms,
                                                   jfloat x,
@@ skipping 601 matching lines @@
       reinterpret_cast<ui::WindowAndroid*>(window_android),
       retained_objects_set);
   return reinterpret_cast<intptr_t>(view);
 }
 
 bool RegisterContentViewCore(JNIEnv* env) {
   return RegisterNativesImpl(env);
 }
 
 }  // namespace content