/**
* Check the cached value to figure out if the feature is enabled. We have to use the cached value
* because native library may not yet been loaded.
*
* @return Whether the feature is enabled.
*/
private static boolean isEnabledInPrefs() {
// Will go away once the feature is enabled for everyone by default.
StrictMode.ThreadPolicy oldPolicy = StrictMode.allowThreadDiskReads();
try {
return ChromePreferenceManager.getInstance(ContextUtils.getApplicationContext())
.getCachedWebApkRuntimeEnabled();
} finally {
StrictMode.setThreadPolicy(oldPolicy);
}
}
/** Caches whether Chrome is set as a default browser on the device. */
@WorkerThread
private void cacheIsChromeDefaultBrowser() {
// Retrieve whether Chrome is default in background to avoid strict mode checks.
Intent intent =
new Intent(Intent.ACTION_VIEW, Uri.parse("http://www.madeupdomainforcheck123.com/"));
ResolveInfo info = mAppContext.getPackageManager().resolveActivity(intent, 0);
boolean isDefault =
(info != null
&& info.match != 0
&& mAppContext.getPackageName().equals(info.activityInfo.packageName));
ChromePreferenceManager.getInstance(mAppContext).setCachedChromeDefaultBrowser(isDefault);
}
/**
* Once native is loaded we can consult the command-line (set via about:flags) and also finch
* state to see if we should enable WebAPKs.
*/
public static void cacheEnabledStateForNextLaunch() {
boolean wasEnabled = isEnabledInPrefs();
CommandLine instance = CommandLine.getInstance();
String experiment = FieldTrialList.findFullName(WEBAPK_DISABLE_EXPERIMENT_NAME);
boolean isEnabled =
(!WEBAPK_RUNTIME_DISABLED.equals(experiment)
&& instance.hasSwitch(ChromeSwitches.ENABLE_WEBAPK));
if (isEnabled != wasEnabled) {
Log.d(TAG, "WebApk setting changed (%s => %s)", wasEnabled, isEnabled);
ChromePreferenceManager.getInstance(ContextUtils.getApplicationContext())
.setCachedWebApkRuntimeEnabled(isEnabled);
}
}