Create new DesktopNavbarButtonsViewController class.

This CL creates a new DesktopNavbarButtonsViewController class to allow
for taskbar buttons and status icons customization on desktop
environment.

Recall: http://recall/clips/e008d2de-36d3-47f6-954a-5ce18bac69a5

Bug: 213964564
Bug: 196757951
Test: Switch between different system navigation modes and verify the
desktop taskbar buttons stay on screen.

Change-Id: Ie7a9a044fad3b60cd37d910b8eb78c8734aadfd5

quickstep/res/values/strings.xml

@@ -246,6 +246,10 @@
     <string name="taskbar_button_ime_switcher">IME switcher</string>
     <!-- Content description for recents button [CHAR_LIMIT=16] -->
     <string name="taskbar_button_recents">Recents</string>
+    <!-- Content description for notifications button [CHAR_LIMIT=16] -->
+    <string name="taskbar_button_notifications">Notifications</string>
+    <!-- Content description for quick settings button [CHAR_LIMIT=16] -->
+    <string name="taskbar_button_quick_settings">Quick Settings</string>
 
     <!-- Label for moving drop target to the top or left side of the screen, depending on orientation (from the taskbar only). -->
     <string name="move_drop_target_top_or_left">Move to top&#47;left</string>

quickstep/src/com/android/launcher3/taskbar/DesktopNavbarButtonsViewController.java

@@ -0,0 +1,65 @@
+/*
+ * Copyright (C) 2022 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.taskbar;
+
+import static com.android.launcher3.taskbar.TaskbarNavButtonController.BUTTON_NOTIFICATIONS;
+import static com.android.launcher3.taskbar.TaskbarNavButtonController.BUTTON_QUICK_SETTINGS;
+
+import android.view.ViewGroup;
+import android.widget.FrameLayout;
+
+import com.android.launcher3.R;
+
+/**
+ * Controller for managing buttons and status icons in taskbar in a desktop environment.
+ */
+public class DesktopNavbarButtonsViewController extends NavbarButtonsViewController {
+
+    private final TaskbarActivityContext mContext;
+    private final FrameLayout mNavButtonsView;
+    private final ViewGroup mNavButtonContainer;
+
+    private TaskbarControllers mControllers;
+
+    public DesktopNavbarButtonsViewController(TaskbarActivityContext context,
+            FrameLayout navButtonsView) {
+        super(context, navButtonsView);
+        mContext = context;
+        mNavButtonsView = navButtonsView;
+        mNavButtonContainer = mNavButtonsView.findViewById(R.id.end_nav_buttons);
+    }
+
+    /**
+     * Initializes the controller
+     */
+    @Override
+    public void init(TaskbarControllers controllers) {
+        mControllers = controllers;
+        mNavButtonsView.getLayoutParams().height = mContext.getDeviceProfile().taskbarSize;
+
+        // Quick settings and notifications buttons
+        addButton(R.drawable.ic_sysbar_quick_settings, BUTTON_QUICK_SETTINGS,
+                mNavButtonContainer, mControllers.navButtonController,
+                R.id.quick_settings_button);
+        addButton(R.drawable.ic_sysbar_notifications, BUTTON_NOTIFICATIONS,
+                mNavButtonContainer, mControllers.navButtonController,
+                R.id.notifications_button);
+    }
+
+    /** Cleans up on destroy */
+    @Override
+    public void onDestroy() { }
+}

quickstep/src/com/android/launcher3/taskbar/NavbarButtonsViewController.java

@@ -15,15 +15,11 @@
  */
 package com.android.launcher3.taskbar;
 
-import static android.content.pm.PackageManager.FEATURE_PC;
-
 import static com.android.launcher3.LauncherAnimUtils.VIEW_TRANSLATE_X;
 import static com.android.launcher3.taskbar.TaskbarNavButtonController.BUTTON_A11Y;
 import static com.android.launcher3.taskbar.TaskbarNavButtonController.BUTTON_BACK;
 import static com.android.launcher3.taskbar.TaskbarNavButtonController.BUTTON_HOME;
 import static com.android.launcher3.taskbar.TaskbarNavButtonController.BUTTON_IME_SWITCH;
-import static com.android.launcher3.taskbar.TaskbarNavButtonController.BUTTON_NOTIFICATIONS;
-import static com.android.launcher3.taskbar.TaskbarNavButtonController.BUTTON_QUICK_SETTINGS;
 import static com.android.launcher3.taskbar.TaskbarNavButtonController.BUTTON_RECENTS;
 import static com.android.launcher3.taskbar.TaskbarViewController.ALPHA_INDEX_KEYGUARD;
 import static com.android.systemui.shared.system.QuickStepContract.SYSUI_STATE_A11Y_BUTTON_CLICKABLE;
@@ -325,16 +321,6 @@ public class NavbarButtonsViewController {
         applyState();
         mPropertyHolders.forEach(StatePropertyHolder::endAnimation);
 
-        // quick setting and notification buttons
-        if (mContext.getPackageManager().hasSystemFeature(FEATURE_PC)) {
-            addButton(R.drawable.ic_sysbar_quick_settings, BUTTON_QUICK_SETTINGS,
-                    mNavButtonContainer, mControllers.navButtonController,
-                    R.id.quick_settings_button);
-            addButton(R.drawable.ic_sysbar_notifications, BUTTON_NOTIFICATIONS,
-                    mNavButtonContainer, mControllers.navButtonController,
-                    R.id.notifications_button);
-        }
-
         // Initialize things needed to move nav buttons to separate window.
         mSeparateWindowParent = new BaseDragLayer<TaskbarActivityContext>(mContext, null, 0) {
             @Override
@@ -546,7 +532,7 @@ public class NavbarButtonsViewController {
         }
     }
 
-    private ImageView addButton(@DrawableRes int drawableId, @TaskbarButton int buttonType,
+    protected ImageView addButton(@DrawableRes int drawableId, @TaskbarButton int buttonType,
             ViewGroup parent, TaskbarNavButtonController navButtonController, @IdRes int id) {
         return addButton(drawableId, buttonType, parent, navButtonController, id,
                 R.layout.taskbar_nav_button);

quickstep/src/com/android/launcher3/taskbar/TaskbarActivityContext.java

@@ -15,6 +15,7 @@
  */
 package com.android.launcher3.taskbar;
 
+import static android.content.pm.PackageManager.FEATURE_PC;
 import static android.view.ViewGroup.LayoutParams.MATCH_PARENT;
 import static android.view.WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE;
 import static android.view.WindowManager.LayoutParams.LAYOUT_IN_DISPLAY_CUTOUT_MODE_ALWAYS;
@@ -166,7 +167,9 @@ public class TaskbarActivityContext extends ContextThemeWrapper implements Activ
         mControllers = new TaskbarControllers(this,
                 new TaskbarDragController(this),
                 buttonController,
-                new NavbarButtonsViewController(this, navButtonsView),
+                getPackageManager().hasSystemFeature(FEATURE_PC)
+                        ? new DesktopNavbarButtonsViewController(this, navButtonsView) :
+                        new NavbarButtonsViewController(this, navButtonsView),
                 new RotationButtonController(this,
                         c.getColor(R.color.taskbar_nav_icon_light_color),
                         c.getColor(R.color.taskbar_nav_icon_dark_color),

quickstep/src/com/android/launcher3/taskbar/TaskbarNavButtonController.java

@@ -143,6 +143,10 @@ public class TaskbarNavButtonController {
                 return R.string.taskbar_button_ime_switcher;
             case BUTTON_RECENTS:
                 return R.string.taskbar_button_recents;
+            case BUTTON_NOTIFICATIONS:
+                return R.string.taskbar_button_notifications;
+            case BUTTON_QUICK_SETTINGS:
+                return R.string.taskbar_button_quick_settings;
             default:
                 return 0;
         }