1 // Copyright (c) 2012 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 COMPONENTS_WEB_CONTENTS_DELEGATE_ANDROID_WEB_CONTENTS_DELEGATE_ANDROID_H_ 6 #define COMPONENTS_WEB_CONTENTS_DELEGATE_ANDROID_WEB_CONTENTS_DELEGATE_ANDROID_H_ 7 8 #include "base/android/jni_helper.h" 9 #include "base/android/scoped_java_ref.h" 10 #include "base/compiler_specific.h" 11 #include "base/memory/scoped_ptr.h" 12 #include "content/public/browser/web_contents_delegate.h" 13 #include "ui/gfx/vector2d.h" 14 15 class GURL; 16 17 namespace content { 18 class WebContents; 19 class WebContentsDelegate; 20 struct NativeWebKeyboardEvent; 21 struct OpenURLParams; 22 } 23 24 namespace web_contents_delegate_android { 25 26 enum WebContentsDelegateLogLevel { 27 // Equivalent of WebCore::WebConsoleMessage::LevelDebug. 28 WEB_CONTENTS_DELEGATE_LOG_LEVEL_DEBUG = 0, 29 // Equivalent of WebCore::WebConsoleMessage::LevelLog. 30 WEB_CONTENTS_DELEGATE_LOG_LEVEL_LOG = 1, 31 // Equivalent of WebCore::WebConsoleMessage::LevelWarning. 32 WEB_CONTENTS_DELEGATE_LOG_LEVEL_WARNING = 2, 33 // Equivalent of WebCore::WebConsoleMessage::LevelError. 34 WEB_CONTENTS_DELEGATE_LOG_LEVEL_ERROR = 3, 35 }; 36 37 38 // Native underpinnings of WebContentsDelegateAndroid.java. Provides a default 39 // delegate for WebContents to forward calls to the java peer. The embedding 40 // application may subclass and override methods on either the C++ or Java side 41 // as required. 42 class WebContentsDelegateAndroid : public content::WebContentsDelegate { 43 public: 44 WebContentsDelegateAndroid(JNIEnv* env, jobject obj); 45 virtual ~WebContentsDelegateAndroid(); 46 47 // Binds this WebContentsDelegateAndroid to the passed WebContents instance, 48 // such that when that WebContents is destroyed, this 49 // WebContentsDelegateAndroid instance will be destroyed too. 50 void SetOwnerWebContents(content::WebContents* contents); 51 52 // Overridden from WebContentsDelegate: 53 virtual content::WebContents* OpenURLFromTab( 54 content::WebContents* source, 55 const content::OpenURLParams& params) OVERRIDE; 56 virtual content::ColorChooser* OpenColorChooser(content::WebContents* source, 57 SkColor color) OVERRIDE; 58 virtual void NavigationStateChanged(const content::WebContents* source, 59 unsigned changed_flags) OVERRIDE; 60 virtual void AddNewContents(content::WebContents* source, 61 content::WebContents* new_contents, 62 WindowOpenDisposition disposition, 63 const gfx::Rect& initial_pos, 64 bool user_gesture, 65 bool* was_blocked) OVERRIDE; 66 virtual void ActivateContents(content::WebContents* contents) OVERRIDE; 67 virtual void DeactivateContents(content::WebContents* contents) OVERRIDE; 68 virtual void LoadingStateChanged(content::WebContents* source) OVERRIDE; 69 virtual void LoadProgressChanged(content::WebContents* source, 70 double load_progress) OVERRIDE; 71 virtual void RendererUnresponsive(content::WebContents* source) OVERRIDE; 72 virtual void RendererResponsive(content::WebContents* source) OVERRIDE; 73 virtual void CloseContents(content::WebContents* source) OVERRIDE; 74 virtual void MoveContents(content::WebContents* source, 75 const gfx::Rect& pos) OVERRIDE; 76 virtual bool AddMessageToConsole(content::WebContents* source, 77 int32 level, 78 const base::string16& message, 79 int32 line_no, 80 const base::string16& source_id) OVERRIDE; 81 virtual void UpdateTargetURL(content::WebContents* source, 82 int32 page_id, 83 const GURL& url) OVERRIDE; 84 virtual void HandleKeyboardEvent( 85 content::WebContents* source, 86 const content::NativeWebKeyboardEvent& event) OVERRIDE; 87 virtual bool TakeFocus(content::WebContents* source, bool reverse) OVERRIDE; 88 virtual void ShowRepostFormWarningDialog( 89 content::WebContents* source) OVERRIDE; 90 virtual void ToggleFullscreenModeForTab(content::WebContents* web_contents, 91 bool enter_fullscreen) OVERRIDE; 92 virtual bool IsFullscreenForTabOrPending( 93 const content::WebContents* web_contents) const OVERRIDE; 94 virtual void DidProgrammaticallyScroll( 95 content::WebContents* web_contents, 96 const gfx::Vector2d& scroll_point) OVERRIDE; 97 98 protected: 99 base::android::ScopedJavaLocalRef<jobject> GetJavaDelegate(JNIEnv* env) const; 100 101 private: 102 // We depend on the java side user of WebContentDelegateAndroid to hold a 103 // strong reference to that object as long as they want to receive callbacks 104 // on it. Using a weak ref here allows it to be correctly GCed. 105 JavaObjectWeakGlobalRef weak_java_delegate_; 106 }; 107 108 bool RegisterWebContentsDelegateAndroid(JNIEnv* env); 109 110 } // namespace web_contents_delegate_android 111 112 #endif // COMPONENTS_WEB_CONTENTS_DELEGATE_ANDROID_WEB_CONTENTS_DELEGATE_ANDROID_H_ 113