Android(安卓)Browser 支持屏蔽webaudio的功能

#############################################

本文为极度寒冰原创，转载请注明出处 #############################################
在android浏览器中，我们都知道可以设置屏蔽image，即选择image是否加载。同样的道理，那既然在webkit中提供了webaudio的接口，那我们也可以实现这个功能。具体实现如下： Package/app/Browser中的修改如下：

diff --git a/res/values/strings.xml b/res/values/strings.xmlindex 41e2fd9..7389f34 100644--- a/res/values/strings.xml+++ b/res/values/strings.xml@@ -338,6 +338,10 @@     <string name="pref_allow_apptabs">Allow multiple tabs per app</string>     <!-- Settings label -->     <string name="pref_content_load_images">Load images</string>+    <!--chao begin -->+    <string name="pref_content_load_audio">Load audio</string>+    <string name="pref_content_load_audio_summary">Play audio on web pages</string>+    <!--chao -->     <!-- Settings label -->     <string name="pref_content_load_images_summary">Display images on web pages</string>      <!-- Settings label -->diff --git a/res/xml/bandwidth_preferences.xml b/res/xml/bandwidth_preferences.xmlindex 1762b80..ae00881 100644--- a/res/xml/bandwidth_preferences.xml+++ b/res/xml/bandwidth_preferences.xml@@ -37,7 +37,13 @@         android:defaultValue="true"         android:title="@string/pref_content_load_images"         android:summary="@string/pref_content_load_images_summary" />-+<!-- add by chao-->+    <CheckBoxPreference+        android:key="load_audio"+        android:defaultValue="true"+        android:title="@string/pref_content_load_audio"+        android:summary="@string/pref_content_load_audio_summary" />+<!-- add by chao -->     <CheckBoxPreference         android:key="video_playback"         android:defaultValue="true"diff --git a/src/com/android/browser/BrowserSettings.java b/src/com/android/browser/BrowserSettings.javaindex bf7a519..d426a8d 100644--- a/src/com/android/browser/BrowserSettings.java+++ b/src/com/android/browser/BrowserSettings.java@@ -91,6 +91,7 @@ import java.util.Iterator; import java.util.LinkedList; import java.util.WeakHashMap; +import android.util.Log; /**  * Class for managing settings  */@@ -330,6 +331,9 @@ public class BrowserSettings implements OnSharedPreferenceChangeListener,         settings.setLayoutAlgorithm(getLayoutAlgorithm());         settings.setJavaScriptCanOpenWindowsAutomatically(!blockPopupWindows());         settings.setLoadsImagesAutomatically(loadImages());+        // -- add by chao+        settings.setLoadsAudioAutomatically(loadAudio());+        // add by chao --         settings.setLoadWithOverviewMode(loadPageInOverviewMode());         settings.setSavePassword(rememberPasswords());         settings.setSaveFormData(saveFormdata());@@ -757,9 +761,17 @@ public class BrowserSettings implements OnSharedPreferenceChangeListener,     }      public boolean loadImages() {+        Log.e("chao","loadImages");         return mPrefs.getBoolean(PREF_LOAD_IMAGES, true);     } +    // -- add by chao+    public boolean loadAudio()+    {+        Log.d("chao","loadAudio");+        return mPrefs.getBoolean(PREF_LOAD_AUDIO, true);+    }+    // add by chao --     public boolean videoPlayback() {         return mPrefs.getBoolean(PREF_VIDEO_PLAYBACK, true);     }diff --git a/src/com/android/browser/PreferenceKeys.java b/src/com/android/browser/PreferenceKeys.javaindex 145b805..43ec640 100644--- a/src/com/android/browser/PreferenceKeys.java+++ b/src/com/android/browser/PreferenceKeys.java@@ -109,6 +109,9 @@ public interface PreferenceKeys {     static final String PREF_LOAD_IMAGES = "load_images";     static final String PREF_VIDEO_PLAYBACK = "video_playback"; +    // -- add by chao+    static final String PREF_LOAD_AUDIO = "load_audio";+    // add by chao --     // ----------------------     // Keys for browser recovery     // ----------------------

在framework中的修改如下：

diff --git a/core/java/android/webkit/WebSettings.java b/core/java/android/webkit/WebSettings.javaindex aa68904..da2c61e 100644--- a/core/java/android/webkit/WebSettings.java+++ b/core/java/android/webkit/WebSettings.java@@ -848,6 +848,12 @@ public abstract class WebSettings {         throw new MustOverrideException();     } +    // -- add by chao +    public synchronized void setLoadsAudioAutomatically(boolean flag) {+        throw new MustOverrideException();+    }++    // add by chao     /**      * Gets whether the WebView loads image resources. This includes      * images embedded using the data URI scheme.*/@@ -859,6 +865,12 @@ public abstract class WebSettings {         throw new MustOverrideException();     } +    // -- add by chao+    public synchronized boolean getLoadsAudioAutomatically() {+        throw new MustOverrideException();+    }+    // add by chao --+     /**      * Sets whether the WebView should not load image resources from the      * network (resources accessed via http and https URI schemes).  Note*/diff --git a/core/java/android/webkit/WebSettingsClassic.java b/core/java/android/webkit/WebSettingsClassic.javaindex 73968a7..0614c5a 100644--- a/core/java/android/webkit/WebSettingsClassic.java+++ b/core/java/android/webkit/WebSettingsClassic.java@@ -62,6 +62,7 @@ import android.os.Message; import android.provider.Settings; import android.provider.Settings.SettingNotFoundException; import android.util.EventLog;+import android.util.Log; import android.os.SystemProperties; import java.util.Locale; @@ -116,6 +117,9 @@ public class WebSettingsClassic extends WebSettings {     private int             mDefaultFixedFontSize = 13;     private int             mPageCacheCapacity = 0;     private boolean         mLoadsImagesAutomatically = true;+    // -- add by chao+    private boolean         mLoadsAudioAutomatically = true;+    // add by chao --     private boolean         mBlockNetworkImage = false;     private boolean         mBlockNetworkLoads;     private boolean         mJavaScriptEnabled = false;@@ -1142,6 +1146,16 @@ public class WebSettingsClassic extends WebSettings {         }     } +    // -- add by chao+    @Override+    public synchronized void setLoadsAudioAutomatically(boolean flag) {+        if (mLoadsAudioAutomatically != flag) {+            Log.d("chao","setLoadsAudioAutomatically flag = " + flag);+            mLoadsAudioAutomatically = flag;+            postSync();+        }+    }+    // add by chao --     /**      * @see android.webkit.WebSettings#getLoadsImagesAutomatically()      */@@ -1149,6 +1163,13 @@ public class WebSettingsClassic extends WebSettings {     public synchronized boolean getLoadsImagesAutomatically() {         return mLoadsImagesAutomatically;     }+  +    // -- add by chao+    @Override+    public synchronized boolean getLoadsAudioAutomatically() {+        return mLoadsAudioAutomatically;+    }+    // add by chao      /**      * @see android.webkit.WebSettings#setBlockNetworkImage(boolean)

extern中的修改如下：

diff --git a/Source/WebCore/page/Settings.cpp b/Source/WebCore/page/Settings.cppindex 79e38d1..6dfc878 100644--- a/Source/WebCore/page/Settings.cpp+++ b/Source/WebCore/page/Settings.cpp@@ -40,7 +40,7 @@ #include "ResourceHandle.h" #include "StorageMap.h" #include <limits>-+#include "AndroidLog.h" using namespace std;  namespace WebCore {@@ -917,6 +917,7 @@ void Settings::setShouldUseHighResolutionTimers(bool shouldUseHighResolutionTime  void Settings::setWebAudioEnabled(bool enabled) {+    ALOGE("setWebAudioEnable = %d  --chao\n", enabled);     m_webAudioEnabled = enabled; } diff --git a/Source/WebKit/android/jni/WebSettings.cpp b/Source/WebKit/android/jni/WebSettings.cppindex fe5ae0b..8348f6b 100644--- a/Source/WebKit/android/jni/WebSettings.cpp+++ b/Source/WebKit/android/jni/WebSettings.cpp@@ -61,6 +61,7 @@ #include <config.h> #include <wtf/Platform.h> +#include "AndroidLog.h" #include "ApplicationCacheStorage.h" #include "BitmapAllocatorAndroid.h" #include "CachedResourceLoader.h"@@ -127,6 +128,9 @@ struct FieldIds {         mDefaultFontSize = env->GetFieldID(clazz, "mDefaultFontSize", "I");         mDefaultFixedFontSize = env->GetFieldID(clazz, "mDefaultFixedFontSize", "I");         mLoadsImagesAutomatically = env->GetFieldID(clazz, "mLoadsImagesAutomatically", "Z");+// add by chao+        mLoadsAudioAutomatically = env->GetFieldID(clazz, "mLoadsAudioAutomatically", "Z");+// add by chao end #ifdef ANDROID_BLOCK_NETWORK_IMAGE         mBlockNetworkImage = env->GetFieldID(clazz, "mBlockNetworkImage", "Z"); #endif@@ -216,6 +220,9 @@ struct FieldIds {         ALOG_ASSERT(mDefaultFontSize, "Could not find field mDefaultFontSize");         ALOG_ASSERT(mDefaultFixedFontSize, "Could not find field mDefaultFixedFontSize");         ALOG_ASSERT(mLoadsImagesAutomatically, "Could not find field mLoadsImagesAutomatically");+// add by chao +        ALOG_ASSERT(mLoadsAudioAutomatically, "Could not find field mLoadsAudioAutomatically");+// add by chao -- #ifdef ANDROID_BLOCK_NETWORK_IMAGE         ALOG_ASSERT(mBlockNetworkImage, "Could not find field mBlockNetworkImage"); #endif@@ -277,6 +284,9 @@ struct FieldIds {     jfieldID mDefaultFontSize;     jfieldID mDefaultFixedFontSize;     jfieldID mLoadsImagesAutomatically;+// --add by chao+    jfieldID mLoadsAudioAutomatically;+// add by chao -- #ifdef ANDROID_BLOCK_NETWORK_IMAGE     jfieldID mBlockNetworkImage; #endif@@ -471,6 +481,11 @@ public:         if (flag)             cachedResourceLoader->setAutoLoadImages(true); +// -- add by chao+        flag = env->GetBooleanField(obj, gFieldIds->mLoadsAudioAutomatically);+        ALOGE("setWebAudioEnabled = %d  --chao \n", flag);+        s->setWebAudioEnabled(flag);+// add by chao -- #ifdef ANDROID_BLOCK_NETWORK_IMAGE         flag = env->GetBooleanField(obj, gFieldIds->mBlockNetworkImage);         s->setBlockNetworkImage(flag);

在browser的设置中，我们就可以看到并使用这个选项了。

更多相关文章

随机推荐