content/components/web_contents_delegate_android/web_contents_delegate_android.h

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