1 files changed, 210 insertions, 0 deletions
diff --git a/src/com/android/launcher3/compat/LauncherAppsCompatV16.java b/src/com/android/launcher3/compat/LauncherAppsCompatV16.java
new file mode 100644
index 000000000..7e5e6bf2c
--- /dev/null
+++ b/src/com/android/launcher3/compat/LauncherAppsCompatV16.java
@@ -0,0 +1,210 @@
+/*
+ * Copyright (C) 2014 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.launcher3.compat;
+
+import android.content.BroadcastReceiver;
+import android.content.ComponentName;
+import android.content.Context;
+import android.content.Intent;
+import android.content.IntentFilter;
+import android.content.pm.ActivityInfo;
+import android.content.pm.PackageInfo;
+import android.content.pm.PackageManager;
+import android.content.pm.PackageManager.NameNotFoundException;
+import android.content.pm.ResolveInfo;
+import android.graphics.Rect;
+import android.net.Uri;
+import android.os.Build;
+import android.os.Bundle;
+import android.provider.Settings;
+
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * Version of {@link LauncherAppsCompat} for devices with API level 16.
+ * Devices Pre-L don't support multiple profiles in one launcher so
+ * user parameters are ignored and all methods operate on the current user.
+ */
+public class LauncherAppsCompatV16 extends LauncherAppsCompat {
+
+    private PackageManager mPm;
+    private Context mContext;
+    private List<OnAppsChangedCallbackCompat> mCallbacks
+            = new ArrayList<OnAppsChangedCallbackCompat>();
+    private PackageMonitor mPackageMonitor;
+
+    LauncherAppsCompatV16(Context context) {
+        mPm = context.getPackageManager();
+        mContext = context;
+        mPackageMonitor = new PackageMonitor();
+   }
+
+    public List<LauncherActivityInfoCompat> getActivityList(String packageName,
+            UserHandleCompat user) {
+        final Intent mainIntent = new Intent(Intent.ACTION_MAIN, null);
+        mainIntent.addCategory(Intent.CATEGORY_LAUNCHER);
+        mainIntent.setPackage(packageName);
+        List<ResolveInfo> infos = mPm.queryIntentActivities(mainIntent, 0);
+        List<LauncherActivityInfoCompat> list =
+                new ArrayList<LauncherActivityInfoCompat>(infos.size());
+        for (ResolveInfo info : infos) {
+            list.add(new LauncherActivityInfoCompatV16(mContext, info));
+        }
+        return list;
+    }
+
+    public LauncherActivityInfoCompat resolveActivity(Intent intent, UserHandleCompat user) {
+        ResolveInfo info = mPm.resolveActivity(intent, 0);
+        if (info != null) {
+            return new LauncherActivityInfoCompatV16(mContext, info);
+        }
+        return null;
+    }
+
+    public void startActivityForProfile(ComponentName component, UserHandleCompat user,
+            Rect sourceBounds, Bundle opts) {
+        Intent launchIntent = new Intent(Intent.ACTION_MAIN);
+        launchIntent.addCategory(Intent.CATEGORY_LAUNCHER);
+        launchIntent.setComponent(component);
+        launchIntent.setSourceBounds(sourceBounds);
+        launchIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
+        mContext.startActivity(launchIntent, opts);
+    }
+
+    public void showAppDetailsForProfile(ComponentName component, UserHandleCompat user) {
+        String packageName = component.getPackageName();
+        Intent intent = new Intent(Settings.ACTION_APPLICATION_DETAILS_SETTINGS,
+                Uri.fromParts("package", packageName, null));
+        intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TASK |
+                Intent.FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS);
+        mContext.startActivity(intent, null);
+    }
+
+    public synchronized void addOnAppsChangedCallback(OnAppsChangedCallbackCompat callback) {
+        if (callback != null && !mCallbacks.contains(callback)) {
+            mCallbacks.add(callback);
+            if (mCallbacks.size() == 1) {
+                registerForPackageIntents();
+            }
+        }
+    }
+
+    public synchronized void removeOnAppsChangedCallback(OnAppsChangedCallbackCompat callback) {
+        mCallbacks.remove(callback);
+        if (mCallbacks.size() == 0) {
+            unregisterForPackageIntents();
+        }
+    }
+
+    public boolean isPackageEnabledForProfile(String packageName, UserHandleCompat user) {
+        try {
+            PackageInfo info = mPm.getPackageInfo(packageName, 0);
+            return info != null && info.applicationInfo.enabled;
+        } catch (NameNotFoundException e) {
+            return false;
+        }
+    }
+
+    public boolean isActivityEnabledForProfile(ComponentName component, UserHandleCompat user) {
+        try {
+            ActivityInfo info = mPm.getActivityInfo(component, 0);
+            return info != null && info.isEnabled();
+        } catch (NameNotFoundException e) {
+            return false;
+        }
+    }
+
+    private void unregisterForPackageIntents() {
+        mContext.unregisterReceiver(mPackageMonitor);
+    }
+
+    private void registerForPackageIntents() {
+        IntentFilter filter = new IntentFilter(Intent.ACTION_PACKAGE_ADDED);
+        filter.addAction(Intent.ACTION_PACKAGE_REMOVED);
+        filter.addAction(Intent.ACTION_PACKAGE_CHANGED);
+        filter.addDataScheme("package");
+        mContext.registerReceiver(mPackageMonitor, filter);
+        filter = new IntentFilter();
+        filter.addAction(Intent.ACTION_EXTERNAL_APPLICATIONS_AVAILABLE);
+        filter.addAction(Intent.ACTION_EXTERNAL_APPLICATIONS_UNAVAILABLE);
+        mContext.registerReceiver(mPackageMonitor, filter);
+    }
+
+    private synchronized List<OnAppsChangedCallbackCompat> getCallbacks() {
+        return new ArrayList<OnAppsChangedCallbackCompat>(mCallbacks);
+    }
+
+    private class PackageMonitor extends BroadcastReceiver {
+        public void onReceive(Context context, Intent intent) {
+            final String action = intent.getAction();
+            final UserHandleCompat user = UserHandleCompat.myUserHandle();
+
+            if (Intent.ACTION_PACKAGE_CHANGED.equals(action)
+                    || Intent.ACTION_PACKAGE_REMOVED.equals(action)
+                    || Intent.ACTION_PACKAGE_ADDED.equals(action)) {
+                final String packageName = intent.getData().getSchemeSpecificPart();
+                final boolean replacing = intent.getBooleanExtra(Intent.EXTRA_REPLACING, false);
+
+                if (packageName == null || packageName.length() == 0) {
+                    // they sent us a bad intent
+                    return;
+                }
+                if (Intent.ACTION_PACKAGE_CHANGED.equals(action)) {
+                    for (OnAppsChangedCallbackCompat callback : getCallbacks()) {
+                        callback.onPackageChanged(packageName, user);
+                    }
+                } else if (Intent.ACTION_PACKAGE_REMOVED.equals(action)) {
+                    if (!replacing) {
+                        for (OnAppsChangedCallbackCompat callback : getCallbacks()) {
+                            callback.onPackageRemoved(packageName, user);
+                        }
+                    }
+                    // else, we are replacing the package, so a PACKAGE_ADDED will be sent
+                    // later, we will update the package at this time
+                } else if (Intent.ACTION_PACKAGE_ADDED.equals(action)) {
+                    if (!replacing) {
+                        for (OnAppsChangedCallbackCompat callback : getCallbacks()) {
+                            callback.onPackageAdded(packageName, user);
+                        }
+                    } else {
+                        for (OnAppsChangedCallbackCompat callback : getCallbacks()) {
+                            callback.onPackageChanged(packageName, user);
+                        }
+                    }
+                }
+            } else if (Intent.ACTION_EXTERNAL_APPLICATIONS_AVAILABLE.equals(action)) {
+                // EXTRA_REPLACING is available Kitkat onwards. For lower devices, it is broadcasted
+                // when moving a package or mounting/un-mounting external storage. Assume that
+                // it is a replacing operation.
+                final boolean replacing = intent.getBooleanExtra(Intent.EXTRA_REPLACING,
+                        Build.VERSION.SDK_INT < Build.VERSION_CODES.KITKAT);
+                String[] packages = intent.getStringArrayExtra(Intent.EXTRA_CHANGED_PACKAGE_LIST);
+                for (OnAppsChangedCallbackCompat callback : getCallbacks()) {
+                    callback.onPackagesAvailable(packages, user, replacing);
+                }
+            } else if (Intent.ACTION_EXTERNAL_APPLICATIONS_UNAVAILABLE.equals(action)) {
+                final boolean replacing = intent.getBooleanExtra(Intent.EXTRA_REPLACING,
+                        Build.VERSION.SDK_INT < Build.VERSION_CODES.KITKAT);
+                String[] packages = intent.getStringArrayExtra(Intent.EXTRA_CHANGED_PACKAGE_LIST);
+                for (OnAppsChangedCallbackCompat callback : getCallbacks()) {
+                    callback.onPackagesUnavailable(packages, user, replacing);
+                }
+            }
+        }
+    }
+}