package com.leavjenn.hews.misc;
import android.app.Activity;
import android.content.ComponentName;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.content.pm.PackageManager;
import android.content.pm.ResolveInfo;
import android.net.Uri;
import android.os.Bundle;
import android.support.customtabs.CustomTabsClient;
import android.support.customtabs.CustomTabsIntent;
import android.support.customtabs.CustomTabsService;
import android.support.customtabs.CustomTabsServiceConnection;
import android.support.customtabs.CustomTabsSession;
import android.text.TextUtils;
import android.util.Log;
import java.util.ArrayList;
import java.util.List;
public class ChromeCustomTabsHelper {
private static final String TAG = "ChromeCustomTabsHelper";
static final String STABLE_PACKAGE = "com.android.chrome";
static final String BETA_PACKAGE = "com.chrome.beta";
static final String DEV_PACKAGE = "com.chrome.dev";
static final String LOCAL_PACKAGE = "com.google.android.apps.chrome";
private static String sPackageNameToUse;
private CustomTabsClient mCustomTabsClient;
private CustomTabsSession mCustomTabsSession;
private CustomTabsServiceConnection mConnection;
/**
* Goes through all apps that handle VIEW intents and have a warmup service. Picks
* the one chosen by the user if there is one, otherwise makes a best effort to return a
* valid package name.
* <p/>
* This is <strong>not</strong> threadsafe.
*
* @param context {@link Context} to use for accessing {@link PackageManager}.
* @return The package name recommended to use for connecting to custom tabs related components.
*/
public static String getPackageNameToUse(Context context) {
if (sPackageNameToUse != null) return sPackageNameToUse;
PackageManager pm = context.getPackageManager();
// Get default VIEW intent handler.
Intent activityIntent = new Intent(Intent.ACTION_VIEW, Uri.parse("http://www.example.com"));
ResolveInfo defaultViewHandlerInfo = pm.resolveActivity(activityIntent, 0);
String defaultViewHandlerPackageName = null;
if (defaultViewHandlerInfo != null) {
defaultViewHandlerPackageName = defaultViewHandlerInfo.activityInfo.packageName;
}
// Get all apps that can handle VIEW intents.
List<ResolveInfo> resolvedActivityList = pm.queryIntentActivities(activityIntent, 0);
List<String> packagesSupportingCustomTabs = new ArrayList<>();
for (ResolveInfo info : resolvedActivityList) {
Intent serviceIntent = new Intent();
serviceIntent.setAction(CustomTabsService.ACTION_CUSTOM_TABS_CONNECTION);
serviceIntent.setPackage(info.activityInfo.packageName);
if (pm.resolveService(serviceIntent, 0) != null) {
packagesSupportingCustomTabs.add(info.activityInfo.packageName);
}
}
// Now packagesSupportingCustomTabs contains all apps that can handle both VIEW intents
// and service calls.
if (packagesSupportingCustomTabs.isEmpty()) {
sPackageNameToUse = null;
} else if (packagesSupportingCustomTabs.size() == 1) {
sPackageNameToUse = packagesSupportingCustomTabs.get(0);
} else if (!TextUtils.isEmpty(defaultViewHandlerPackageName)
&& !hasSpecializedHandlerIntents(context, activityIntent)
&& packagesSupportingCustomTabs.contains(defaultViewHandlerPackageName)) {
sPackageNameToUse = defaultViewHandlerPackageName;
} else if (packagesSupportingCustomTabs.contains(STABLE_PACKAGE)) {
sPackageNameToUse = STABLE_PACKAGE;
} else if (packagesSupportingCustomTabs.contains(BETA_PACKAGE)) {
sPackageNameToUse = BETA_PACKAGE;
} else if (packagesSupportingCustomTabs.contains(DEV_PACKAGE)) {
sPackageNameToUse = DEV_PACKAGE;
} else if (packagesSupportingCustomTabs.contains(LOCAL_PACKAGE)) {
sPackageNameToUse = LOCAL_PACKAGE;
}
return sPackageNameToUse;
}
/**
* Used to check whether there is a specialized handler for a given intent.
*
* @param intent The intent to check with.
* @return Whether there is a specialized handler for the given intent.
*/
private static boolean hasSpecializedHandlerIntents(Context context, Intent intent) {
try {
PackageManager pm = context.getPackageManager();
List<ResolveInfo> handlers =
pm.queryIntentActivities(intent, PackageManager.GET_RESOLVED_FILTER);
if (handlers == null || handlers.size() == 0) {
return false;
}
for (ResolveInfo resolveInfo : handlers) {
IntentFilter filter = resolveInfo.filter;
if (filter == null) continue;
if (filter.countDataAuthorities() == 0 || filter.countDataPaths() == 0) continue;
if (resolveInfo.activityInfo == null) continue;
return true;
}
} catch (RuntimeException e) {
Log.e(TAG, "Runtime exception while getting specialized handlers");
}
return false;
}
/**
* Binds the Activity to the Custom Tabs Service
*
* @param activity the activity to be binded to the service
*/
public void bindCustomTabsService(Activity activity) {
if (mCustomTabsClient != null) return;
String packageName = getPackageNameToUse(activity);
if (packageName == null) return;
mConnection = new CustomTabsServiceConnection() {
@Override
public void onCustomTabsServiceConnected(ComponentName name, CustomTabsClient client) {
mCustomTabsClient = client;
mCustomTabsClient.warmup(0L);
// if (mConnectionCallback != null) mConnectionCallback.onCustomTabsConnected();
//Initialize a session as soon as possible.
getSession();
}
@Override
public void onServiceDisconnected(ComponentName name) {
mCustomTabsClient = null;
// if (mConnectionCallback != null) mConnectionCallback.onCustomTabsDisconnected();
}
};
CustomTabsClient.bindCustomTabsService(activity, packageName, mConnection);
}
/**
* Creates or retrieves an exiting CustomTabsSession
*
* @return a CustomTabsSession
*/
public CustomTabsSession getSession() {
if (mCustomTabsClient == null) {
mCustomTabsSession = null;
} else if (mCustomTabsSession == null) {
mCustomTabsSession = mCustomTabsClient.newSession(null);
}
return mCustomTabsSession;
}
/**
* Unbinds the Activity from the Custom Tabs Service
*
* @param activity the activity that is connected to the service
*/
public void unbindCustomTabsService(Activity activity) {
if (mConnection == null) return;
activity.unbindService(mConnection);
mCustomTabsClient = null;
mCustomTabsSession = null;
}
/**
* Opens the URL on a Custom Tab if possible. Otherwise fallsback to opening it on a WebView
*
* @param activity The host activity
* @param customTabsIntent a CustomTabsIntent to be used if Custom Tabs is available
* @param uri the Uri to be opened
* @param fallback a CustomTabFallback to be used if Custom Tabs is not available
*/
public static void openCustomTab(Activity activity,
CustomTabsIntent customTabsIntent,
Uri uri,
CustomTabFallback fallback) {
String packageName = getPackageNameToUse(activity);
//If we cant find a package name, it means theres no browser that supports
//Chrome Custom Tabs installed. So, we fallback to the webview
if (packageName == null) {
if (fallback != null) {
fallback.openUri(activity, uri);
}
} else {
customTabsIntent.intent.setPackage(packageName);
customTabsIntent.launchUrl(activity, uri);
}
}
public boolean mayLaunchUrl(Uri uri, Bundle extras, List<Bundle> otherLikelyBundles) {
if (mCustomTabsClient == null) return false;
CustomTabsSession session = getSession();
if (session == null) return false;
return session.mayLaunchUrl(uri, extras, otherLikelyBundles);
}
/**
* To be used as a fallback to open the Uri when Custom Tabs is not available
*/
public interface CustomTabFallback {
/**
* @param activity The Activity that wants to open the Uri
* @param uri The uri to be opened by the fallback
*/
void openUri(Activity activity, Uri uri);
}
}