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_weak_ref.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 namespace content{
  16 struct WebPreferences;
  17 }
  18
  19 namespace android_webview {
  20
  21 class AwRenderViewHostExt;
  22
  23 class AwSettings : public content::WebContentsObserver {
  24  public:
  25   static AwSettings* FromWebContents(content::WebContents* web_contents);
  26
  27   AwSettings(JNIEnv* env, jobject obj, content::WebContents* web_contents);
  28   ~AwSettings() override;
  29
  30   // Called from Java. Methods with "Locked" suffix require that the settings
  31   // access lock is held during their execution.
  32   void Destroy(JNIEnv* env, jobject obj);
  33   void PopulateWebPreferencesLocked(JNIEnv* env, jobject obj, jlong web_prefs);
  34   void ResetScrollAndScaleState(JNIEnv* env, jobject obj);
  35   void UpdateEverythingLocked(JNIEnv* env, jobject obj);
  36   void UpdateInitialPageScaleLocked(JNIEnv* env, jobject obj);
  37   void UpdateUserAgentLocked(JNIEnv* env, jobject obj);
  38   void UpdateWebkitPreferencesLocked(JNIEnv* env, jobject obj);
  39   void UpdateFormDataPreferencesLocked(JNIEnv* env, jobject obj);
  40   void UpdateRendererPreferencesLocked(JNIEnv* env, jobject obj);
  41   void UpdateOffscreenPreRasterLocked(JNIEnv* env, jobject obj);
  42
  43   void PopulateWebPreferences(content::WebPreferences* web_prefs);
  44
  45  private:
  46   AwRenderViewHostExt* GetAwRenderViewHostExt();
  47   void UpdateEverything();
  48
  49   // WebContentsObserver overrides:
  50   void RenderViewCreated(content::RenderViewHost* render_view_host) override;
  51   void WebContentsDestroyed() override;
  52
  53   bool renderer_prefs_initialized_;
  54
  55   JavaObjectWeakGlobalRef aw_settings_;
  56 };
  57
  58 bool RegisterAwSettings(JNIEnv* env);
  59
  60 }  // namespace android_webview
  61
  62 #endif  // ANDROID_WEBVIEW_NATIVE_AW_SETTINGS_H_