| // Copyright 2014 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 CHROME_BROWSER_ANDROID_LOGO_BRIDGE_H_ |
| #define CHROME_BROWSER_ANDROID_LOGO_BRIDGE_H_ |
| |
| #include <jni.h> |
| |
| #include <memory> |
| |
| #include "base/android/scoped_java_ref.h" |
| #include "base/macros.h" |
| #include "base/memory/weak_ptr.h" |
| |
| namespace search_provider_logos { |
| class LogoService; |
| } // namespace search_provider_logos |
| |
| // The C++ counterpart to LogoBridge.java. Enables Java code to access the |
| // default search provider's logo. |
| class LogoBridge { |
| public: |
| explicit LogoBridge(const base::android::JavaRef<jobject>& j_profile); |
| void Destroy(JNIEnv* env, const base::android::JavaParamRef<jobject>& obj); |
| |
| // TODO(treib): Double-check the observer contract (esp. for |
| // LogoService::GetLogo()). |
| // |
| // Gets the current non-animated logo (downloading it if necessary) and passes |
| // it to the observer. |
| // The observer's |onLogoAvailable| is guaranteed to be called at least once: |
| // a) A cached doodle is available. |
| // b) A new doodle is available. |
| // c) Not having a doodle was revalidated. |
| void GetCurrentLogo( |
| JNIEnv* env, |
| const base::android::JavaParamRef<jobject>& obj, |
| const base::android::JavaParamRef<jobject>& j_logo_observer); |
| |
| // Downloads the animated logo from the given URL and returns it to the |
| // callback. Does not support multiple concurrent requests: A second request |
| // for the same URL will be ignored; a request for a different URL will cancel |
| // any ongoing request. If downloading fails, the callback is not called. |
| void GetAnimatedLogo(JNIEnv* env, |
| const base::android::JavaParamRef<jobject>& obj, |
| const base::android::JavaParamRef<jobject>& j_callback, |
| const base::android::JavaParamRef<jstring>& j_url); |
| |
| private: |
| class AnimatedLogoLoader; |
| |
| virtual ~LogoBridge(); |
| |
| search_provider_logos::LogoService* logo_service_; |
| |
| std::unique_ptr<AnimatedLogoLoader> animated_logo_loader_; |
| |
| base::WeakPtrFactory<LogoBridge> weak_ptr_factory_; |
| |
| DISALLOW_COPY_AND_ASSIGN(LogoBridge); |
| }; |
| |
| #endif // CHROME_BROWSER_ANDROID_LOGO_BRIDGE_H_ |