android_webview/native/aw_settings.h

   1 // Copyright (c) 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 ANDROID_WEBVIEW_NATIVE_AW_SETTINGS_H_
   6 #define ANDROID_WEBVIEW_NATIVE_AW_SETTINGS_H_
   7
   8 #include <jni.h>
   9
  10 #include "base/android/jni_helper.h"
  11 #include "base/android/scoped_java_ref.h"
  12 #include "base/memory/scoped_ptr.h"
  13 #include "content/public/browser/web_contents_observer.h"
  14
  15 struct WebPreferences;
  16
  17 namespace android_webview {
  18
  19 class AwRenderViewHostExt;
  20
  21 class AwSettings : public content::WebContentsObserver {
  22  public:
  23   static AwSettings* FromWebContents(content::WebContents* web_contents);
  24
  25   AwSettings(JNIEnv* env, jobject obj, jlong web_contents);
  26   virtual ~AwSettings();
  27
  28   // Called from Java. Methods with "Locked" suffix require that the settings
  29   // access lock is held during their execution.
  30   void Destroy(JNIEnv* env, jobject obj);
  31   void PopulateWebPreferencesLocked(JNIEnv* env, jobject obj, jlong web_prefs);
  32   void ResetScrollAndScaleState(JNIEnv* env, jobject obj);
  33   void UpdateEverythingLocked(JNIEnv* env, jobject obj);
  34   void UpdateInitialPageScaleLocked(JNIEnv* env, jobject obj);
  35   void UpdateUserAgentLocked(JNIEnv* env, jobject obj);
  36   void UpdateWebkitPreferencesLocked(JNIEnv* env, jobject obj);
  37   void UpdateFormDataPreferencesLocked(JNIEnv* env, jobject obj);
  38
  39   void PopulateWebPreferences(WebPreferences* web_prefs);
  40
  41  private:
  42   AwRenderViewHostExt* GetAwRenderViewHostExt();
  43   void UpdateEverything();
  44
  45   // Fixed WebPreferences for Android WebView.
  46   static void PopulateFixedPreferences(WebPreferences* web_prefs);
  47
  48   // WebContentsObserver overrides:
  49   virtual void RenderViewCreated(
  50       content::RenderViewHost* render_view_host) OVERRIDE;
  51   virtual void WebContentsDestroyed(
  52       content::WebContents* web_contents) OVERRIDE;
  53
  54   bool accelerated_2d_canvas_disabled_by_switch_;
  55
  56   JavaObjectWeakGlobalRef aw_settings_;
  57 };
  58
  59 bool RegisterAwSettings(JNIEnv* env);
  60
  61 }  // namespace android_webview
  62
  63 #endif  // ANDROID_WEBVIEW_NATIVE_AW_SETTINGS_H_