1 files changed, 86 insertions, 0 deletions
diff --git a/java/com/android/dialer/shortcuts/ShortcutRefresher.java b/java/com/android/dialer/shortcuts/ShortcutRefresher.java
new file mode 100644
index 000000000..f5ff64874
--- /dev/null
+++ b/java/com/android/dialer/shortcuts/ShortcutRefresher.java
@@ -0,0 +1,86 @@
+/*
+ * Copyright (C) 2016 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.dialer.shortcuts;
+
+import android.content.Context;
+import android.os.Build;
+import android.support.annotation.MainThread;
+import android.support.annotation.NonNull;
+import android.support.annotation.WorkerThread;
+import com.android.contacts.common.list.ContactEntry;
+import com.android.dialer.common.Assert;
+import com.android.dialer.common.AsyncTaskExecutor;
+import com.android.dialer.common.AsyncTaskExecutors;
+import com.android.dialer.common.FallibleAsyncTask;
+import com.android.dialer.common.LogUtil;
+import java.util.ArrayList;
+import java.util.List;
+
+/** Refreshes launcher shortcuts from UI components using provided list of contacts. */
+public final class ShortcutRefresher {
+
+  private static final AsyncTaskExecutor EXECUTOR = AsyncTaskExecutors.createThreadPoolExecutor();
+
+  /** Asynchronously updates launcher shortcuts using the provided list of contacts. */
+  @MainThread
+  public static void refresh(@NonNull Context context, List<ContactEntry> contacts) {
+    Assert.isMainThread();
+    Assert.isNotNull(context);
+
+    if (Build.VERSION.SDK_INT < Build.VERSION_CODES.N_MR1) {
+      return;
+    }
+
+    if (!Shortcuts.areDynamicShortcutsEnabled(context)) {
+      return;
+    }
+
+    //noinspection unchecked
+    EXECUTOR.submit(Task.ID, new Task(context), new ArrayList<>(contacts));
+  }
+
+  private static final class Task extends FallibleAsyncTask<List<ContactEntry>, Void, Void> {
+    private static final String ID = "ShortcutRefresher.Task";
+
+    private final Context context;
+
+    Task(Context context) {
+      this.context = context;
+    }
+
+    /**
+     * @param params array containing exactly one element, the list of contacts from favorites
+     *     tiles, ordered in tile order.
+     */
+    @SafeVarargs
+    @Override
+    @NonNull
+    @WorkerThread
+    protected final Void doInBackgroundFallible(List<ContactEntry>... params) {
+      Assert.isWorkerThread();
+      LogUtil.enterBlock("ShortcutRefresher.Task.doInBackground");
+
+      // Only dynamic shortcuts are maintained from UI components. Pinned shortcuts are maintained
+      // by the job scheduler. This is because a pinned contact may not necessarily still be in the
+      // favorites tiles, so refreshing it would require an additional database query. We don't want
+      // to incur the cost of that extra database query every time the favorites tiles change.
+      new DynamicShortcuts(context, new IconFactory(context)).refresh(params[0]); // Blocking
+
+      return null;
+    }
+  }
+}