blimp: Add support for input handling

blimp/client/android/blimp_view.cc

 // Copyright 2015 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 "blimp/client/android/blimp_view.h"
 
 #include <android/native_window_jni.h>
 
 #include "blimp/client/compositor/blimp_compositor_android.h"
 #include "jni/BlimpView_jni.h"
+#include "ui/events/android/motion_event_android.h"
 #include "ui/gfx/geometry/size.h"
 
 namespace blimp {
 
 // static
 static jlong Init(JNIEnv* env,
                   const JavaParamRef<jobject>& jobj,
                   jint real_width,
                   jint real_height,
                   jint width,
                   jint height,
                   jfloat dp_to_px) {
   return reinterpret_cast<intptr_t>(
       new BlimpView(env, jobj, gfx::Size(real_width, real_height),
                     gfx::Size(width, height), dp_to_px));
 }
 
 // static
 bool BlimpView::RegisterJni(JNIEnv* env) {
   return RegisterNativesImpl(env);
 }
 
 BlimpView::BlimpView(JNIEnv* env,
                      const JavaParamRef<jobject>& jobj,
                      const gfx::Size& real_size,
                      const gfx::Size& size,
                      float dp_to_px)
-    : compositor_(BlimpCompositorAndroid::Create(real_size, size, dp_to_px)),
+    : device_scale_factor_(dp_to_px),
+      compositor_(BlimpCompositorAndroid::Create(real_size, size, dp_to_px)),
       current_surface_format_(0),
       window_(gfx::kNullAcceleratedWidget) {
   java_obj_.Reset(env, jobj);
 }
 
 BlimpView::~BlimpView() {
   ReleaseAcceleratedWidget();
 }
 
 void BlimpView::Destroy(JNIEnv* env, jobject jobj) {
@@ skipping 38 matching lines @@
 
 void BlimpView::ReleaseAcceleratedWidget() {
   if (window_ == gfx::kNullAcceleratedWidget)
     return;
 
   compositor_->ReleaseAcceleratedWidget();
   ANativeWindow_release(window_);
   window_ = gfx::kNullAcceleratedWidget;
 }
 
+jboolean BlimpView::OnTouchEvent(JNIEnv* env,
+                             jobject obj,
+                             jobject motion_event,
+                             jlong time_ms,
+                             jint android_action,
+                             jint pointer_count,
+                             jint history_size,
+                             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 touch_minor_0,
+                             jfloat touch_minor_1,
+                             jfloat orientation_0,
+                             jfloat orientation_1,
+                             jfloat tilt_0,
+                             jfloat tilt_1,
+                             jfloat raw_pos_x,
+                             jfloat raw_pos_y,
+                             jint android_tool_type_0,
+                             jint android_tool_type_1,
+                             jint android_button_state,
+                             jint android_meta_state) {
+  ui::MotionEventAndroid::Pointer pointer0(pointer_id_0,

[nyquist, 2015/12/08 22:24:24]

Seems like you're hitting an issue here:

../../blimp/client/android/blimp_view.cc:134: error: undefined reference to
'ui::MotionEventAndroid::Pointer::Pointer(int, float, float, float, float,
float, float, int)'
../../blimp/client/android/blimp_view.cc:142: error: undefined reference to
'ui::MotionEventAndroid::Pointer::Pointer(int, float, float, float, float,
float, float, int)'
../../blimp/client/android/blimp_view.cc:156: error: undefined reference to
'ui::MotionEventAndroid::MotionEventAndroid(float, _JNIEnv*, _jobject*, long
long, int, int, int, int, int, int, float, float,
ui::MotionEventAndroid::Pointer const&, ui::MotionEventAndroid::Pointer const&)'
../../blimp/client/android/blimp_view.cc:158: error: undefined reference to
'ui::MotionEventAndroid::~MotionEventAndroid()'

[Khushal, 2015/12/09 00:40:44]

Thanks. Needed a deps fix.

+                                           pos_x_0,
+                                           pos_y_0,
+                                           touch_major_0,
+                                           touch_minor_0,
+                                           orientation_0,
+                                           tilt_0,
+                                           android_tool_type_0);
+  ui::MotionEventAndroid::Pointer pointer1(pointer_id_1,
+                                           pos_x_1,
+                                           pos_y_1,
+                                           touch_major_1,
+                                           touch_minor_1,
+                                           orientation_1,
+                                           tilt_1,
+                                           android_tool_type_1);
+  ui::MotionEventAndroid event(1.f / device_scale_factor_,
+                               env,
+                               motion_event,
+                               time_ms,
+                               android_action,
+                               pointer_count,
+                               history_size,
+                               action_index,
+                               android_button_state,
+                               android_meta_state,
+                               raw_pos_x - pos_x_0,
+                               raw_pos_y - pos_y_0,
+                               pointer0,
+                               pointer1);
+
+  return compositor_->OnTouchEvent(event);
+}
+
 }  // namespace blimp