blimp: Add support for input handling

blimp/client/android/blimp_view.cc

Index: blimp/client/android/blimp_view.cc
diff --git a/blimp/client/android/blimp_view.cc b/blimp/client/android/blimp_view.cc
index cec7e3a64b213e6e490c70bcd606bd10fda7866c..79633f799bdbfc37c3af0c7aa40234274a726eff 100644
--- a/blimp/client/android/blimp_view.cc
+++ b/blimp/client/android/blimp_view.cc
@@ -8,6 +8,7 @@
 
 #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 {
@@ -35,7 +36,8 @@ BlimpView::BlimpView(JNIEnv* env,
                      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);
@@ -94,4 +96,66 @@ void BlimpView::ReleaseAcceleratedWidget() {
   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,
+                                           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