1 // Copyright 2013 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #ifndef UI_BASE_ANDROID_WINDOW_ANDROID_H_ 6 #define UI_BASE_ANDROID_WINDOW_ANDROID_H_ 7 8 #include <jni.h> 9 #include <vector> 10 #include "base/android/jni_helper.h" 11 #include "base/android/scoped_java_ref.h" 12 #include "base/observer_list.h" 13 #include "ui/base/ui_export.h" 14 #include "ui/gfx/vector2d_f.h" 15 16 namespace ui { 17 18 class WindowAndroidObserver; 19 20 // Android implementation of the activity window. 21 class UI_EXPORT WindowAndroid { 22 public: 23 WindowAndroid(JNIEnv* env, jobject obj); 24 25 void Destroy(JNIEnv* env, jobject obj); 26 27 base::android::ScopedJavaLocalRef<jobject> GetJavaObject(); 28 29 static bool RegisterWindowAndroid(JNIEnv* env); 30 31 // The content offset is used to translate snapshots to the correct part of 32 // the window. set_content_offset(const gfx::Vector2dF & content_offset)33 void set_content_offset(const gfx::Vector2dF& content_offset) { 34 content_offset_ = content_offset; 35 } 36 37 bool GrabSnapshot(int content_x, int content_y, int width, int height, 38 std::vector<unsigned char>* png_representation); 39 40 // Compositor callback relay. 41 void OnCompositingDidCommit(); 42 43 void AttachCompositor(); 44 void DetachCompositor(); 45 46 void AddObserver(WindowAndroidObserver* observer); 47 void RemoveObserver(WindowAndroidObserver* observer); 48 49 private: 50 ~WindowAndroid(); 51 52 JavaObjectWeakGlobalRef weak_java_window_; 53 gfx::Vector2dF content_offset_; 54 55 ObserverList<WindowAndroidObserver> observer_list_; 56 57 DISALLOW_COPY_AND_ASSIGN(WindowAndroid); 58 }; 59 60 } // namespace ui 61 62 #endif // UI_BASE_ANDROID_WINDOW_ANDROID_H_ 63