Extend MotionEvent to have tool type and button state

content/browser/android/content_view_core_impl.h

 // 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.
 
 #ifndef CONTENT_BROWSER_ANDROID_CONTENT_VIEW_CORE_IMPL_H_
 #define CONTENT_BROWSER_ANDROID_CONTENT_VIEW_CORE_IMPL_H_
 
 #include <vector>
 
 #include "base/android/jni_android.h"
@@ skipping 92 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_0,

[jdduke (slow), 2014/06/20 15:33:25]

Sigh, this method has grown so large, but I don't really know of a better or
more efficient way of doing this.

[Changwan Ryu, 2014/06/20 21:00:34]

One idea to encapsulate these parameters would be to use a light weight proto
buffer. But there still may be some overhead.

+                        jint android_tool_type_1,
+                        jint android_button_state);
   jboolean SendMouseMoveEvent(JNIEnv* env,
                               jobject obj,
                               jlong time_ms,
                               jfloat x,
                               jfloat y);
   jboolean SendMouseWheelEvent(JNIEnv* env,
                                jobject obj,
                                jlong time_ms,
                                jfloat x,
                                jfloat y,
@@ skipping 255 matching lines @@
       java_bridge_dispatcher_host_manager_;
 
   DISALLOW_COPY_AND_ASSIGN(ContentViewCoreImpl);
 };
 
 bool RegisterContentViewCore(JNIEnv* env);
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_ANDROID_CONTENT_VIEW_CORE_IMPL_H_