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Merge "Adding new Chomium-WebView property key, and deprecating old key." into jb-mr2-dev

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Kristian Monsen
2013-04-05 17:17:25 +00:00
committed by Android (Google) Code Review
parent 65f420ec98 b0e35846b8
commit 4ac0462e71
1 changed files with 25 additions and 5 deletions
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30
core/java/android/webkit/WebViewFactory.java
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@@ -25,8 +25,13 @@ import dalvik.system.PathClassLoader;
/**
* Top level factory, used creating all the main WebView implementation classes.
*
* @hide
*/
class WebViewFactory {
public final class WebViewFactory {
public static final String WEBVIEW_EXPERIMENTAL_PROPERTY = "persist.sys.webview.exp";
private static final String DEPRECATED_CHROMIUM_PROPERTY = "webview.use_chromium";
// Default Provider factory class name.
// TODO: When the Chromium powered WebView is ready, it should be the default factory class.
private static final String DEFAULT_WEBVIEW_FACTORY = "android.webkit.WebViewClassic$Factory";
@@ -43,16 +48,17 @@ class WebViewFactory {
private static WebViewFactoryProvider sProviderInstance;
private static final Object sProviderLock = new Object();
public static boolean isExperimentalWebViewAvailable() {
return Build.IS_DEBUGGABLE && (new java.io.File(CHROMIUM_WEBVIEW_JAR).exists());
}
static WebViewFactoryProvider getProvider() {
synchronized (sProviderLock) {
// For now the main purpose of this function (and the factory abstraction) is to keep
// us honest and minimize usage of WebViewClassic internals when binding the proxy.
if (sProviderInstance != null) return sProviderInstance;
// For debug builds, we allow a system property to specify that we should use the
// Chromium powered WebView. This enables us to switch between implementations
// at runtime. For user (release) builds, don't allow this.
if (Build.IS_DEBUGGABLE && SystemProperties.getBoolean("webview.use_chromium", false)) {
if (isExperimentalWebViewEnabled()) {
StrictMode.ThreadPolicy oldPolicy = StrictMode.allowThreadDiskReads();
try {
sProviderInstance = loadChromiumProvider();
@@ -76,6 +82,20 @@ class WebViewFactory {
}
}
// For debug builds, we allow a system property to specify that we should use the
// experimtanl Chromium powered WebView. This enables us to switch between
// implementations at runtime. For user (release) builds, don't allow this.
private static boolean isExperimentalWebViewEnabled() {
if (!isExperimentalWebViewAvailable())
return false;
if (SystemProperties.getBoolean(DEPRECATED_CHROMIUM_PROPERTY, false)) {
Log.w(LOGTAG, String.format("The property %s has been deprecated. Please use %s.",
DEPRECATED_CHROMIUM_PROPERTY, WEBVIEW_EXPERIMENTAL_PROPERTY));
return true;
}
return SystemProperties.getBoolean(WEBVIEW_EXPERIMENTAL_PROPERTY, false);
}
// TODO: This allows us to have the legacy and Chromium WebView coexist for development
// and side-by-side testing. After transition, remove this when no longer required.
private static WebViewFactoryProvider loadChromiumProvider() {