Register/unregister all apps system action with accessibility

Bug: 136286274 Change-Id: Ia43d30b7cf078f56cc9887c8b3fb31924ad2b1b0
2020-01-27 16:23:03 -08:00
parent 0ae6433a61
commit d91cb6e75f
3 changed files with 110 additions and 0 deletions
@@ -0,0 +1,90 @@
+/*
+ * Copyright (C) 2020 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.accessibility;
+
+import static com.android.launcher3.LauncherState.ALL_APPS;
+import static com.android.launcher3.LauncherState.NORMAL;
+
+import android.app.PendingIntent;
+import android.app.RemoteAction;
+import android.content.BroadcastReceiver;
+import android.content.Context;
+import android.content.Intent;
+import android.content.IntentFilter;
+import android.graphics.drawable.Icon;
+import android.view.accessibility.AccessibilityManager;
+import com.android.launcher3.Launcher;
+import com.android.launcher3.LauncherState;
+import com.android.launcher3.LauncherStateManager;
+import com.android.launcher3.R;
+
+/**
+ * Manages the launcher system actions presented to accessibility services.
+ */
+public class SystemActions {
+
+    /**
+     * System Action ID to show all apps.  This ID should follow the ones in
+     * com.android.systemui.accessibility.SystemActions.
+     */
+    private static final int SYSTEM_ACTION_ID_ALL_APPS = 100;
+
+    private Launcher mLauncher;
+    private AccessibilityManager mAccessibilityManager;
+    private RemoteAction mAllAppsAction;
+    private boolean mRegistered;
+
+    public SystemActions(Launcher launcher) {
+        mLauncher = launcher;
+        mAccessibilityManager = (AccessibilityManager) launcher.getSystemService(
+                Context.ACCESSIBILITY_SERVICE);
+        mAllAppsAction = new RemoteAction(
+                Icon.createWithResource(launcher, R.drawable.ic_apps),
+                launcher.getString(R.string.all_apps_label),
+                launcher.getString(R.string.all_apps_label),
+                launcher.createPendingResult(SYSTEM_ACTION_ID_ALL_APPS, new Intent(),
+                        0 /* flags */));
+    }
+
+    public void register() {
+        if (mRegistered) {
+            return;
+        }
+        mAccessibilityManager.registerSystemAction(mAllAppsAction, SYSTEM_ACTION_ID_ALL_APPS);
+        mRegistered = true;
+    }
+
+    public void unregister() {
+        if (!mRegistered) {
+            return;
+        }
+        mAccessibilityManager.unregisterSystemAction(SYSTEM_ACTION_ID_ALL_APPS);
+        mRegistered = false;
+    }
+
+    public void onActivityResult(int requestCode) {
+        if (requestCode == SYSTEM_ACTION_ID_ALL_APPS) {
+            showAllApps();
+        }
+    }
+
+    private void showAllApps() {
+        LauncherStateManager stateManager = mLauncher.getStateManager();
+        stateManager.goToState(NORMAL);
+        stateManager.goToState(ALL_APPS);
+    }
+}