Add empty Taskbar views and initial TaskbarController
Guarded by a FeatureFlag.
Bug: 171917176
Change-Id: I7145c7ae68282bf53552502798fe758c8c0e285d
diff --git a/quickstep/AndroidManifest.xml b/quickstep/AndroidManifest.xml
index 8dab915..d95cc01 100644
--- a/quickstep/AndroidManifest.xml
+++ b/quickstep/AndroidManifest.xml
@@ -32,6 +32,7 @@
<uses-permission android:name="android.permission.VIBRATE"/>
<uses-permission android:name="android.permission.QUERY_ALL_PACKAGES"/>
<uses-permission android:name="${packageName}.permission.HOTSEAT_EDU" />
+ <uses-permission android:name="android.permission.SYSTEM_ALERT_WINDOW" />
<application android:backupAgent="com.android.launcher3.LauncherBackupAgent"
android:fullBackupOnly="true"
diff --git a/quickstep/res/layout/taskbar.xml b/quickstep/res/layout/taskbar.xml
new file mode 100644
index 0000000..5f1046d
--- /dev/null
+++ b/quickstep/res/layout/taskbar.xml
@@ -0,0 +1,29 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2021 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.
+-->
+
+<com.android.launcher3.taskbar.TaskbarContainerView
+ xmlns:android="http://schemas.android.com/apk/res/android"
+ android:id="@+id/taskbar_container"
+ android:layout_width="wrap_content"
+ android:layout_height="wrap_content">
+
+ <com.android.launcher3.taskbar.TaskbarView
+ android:id="@+id/taskbar_view"
+ android:layout_width="wrap_content"
+ android:layout_height="wrap_content"
+ android:background="@color/taskbar_background"/>
+
+</com.android.launcher3.taskbar.TaskbarContainerView>
\ No newline at end of file
diff --git a/quickstep/res/values/colors.xml b/quickstep/res/values/colors.xml
index 449fe10..3bc8ddc 100644
--- a/quickstep/res/values/colors.xml
+++ b/quickstep/res/values/colors.xml
@@ -24,4 +24,7 @@
<color name="all_apps_label_text_dark">#61FFFFFF</color>
<color name="all_apps_prediction_row_separator">#3c000000</color>
<color name="all_apps_prediction_row_separator_dark">#3cffffff</color>
+
+ <!-- Taskbar -->
+ <color name="taskbar_background">#101010</color>
</resources>
\ No newline at end of file
diff --git a/quickstep/res/values/dimens.xml b/quickstep/res/values/dimens.xml
index 551f7b0..4272f50 100644
--- a/quickstep/res/values/dimens.xml
+++ b/quickstep/res/values/dimens.xml
@@ -119,4 +119,7 @@
<!-- Minimum distance to swipe to trigger accessibility gesture -->
<dimen name="accessibility_gesture_min_swipe_distance">80dp</dimen>
+
+ <!-- Taskbar -->
+ <dimen name="taskbar_size">48dp</dimen>
</resources>
diff --git a/quickstep/src/com/android/launcher3/BaseQuickstepLauncher.java b/quickstep/src/com/android/launcher3/BaseQuickstepLauncher.java
index 3643d6d..2518f42 100644
--- a/quickstep/src/com/android/launcher3/BaseQuickstepLauncher.java
+++ b/quickstep/src/com/android/launcher3/BaseQuickstepLauncher.java
@@ -19,6 +19,7 @@
import static com.android.launcher3.AbstractFloatingView.TYPE_HIDE_BACK_BUTTON;
import static com.android.launcher3.LauncherState.FLAG_HIDE_BACK_BUTTON;
import static com.android.launcher3.LauncherState.NORMAL;
+import static com.android.launcher3.util.DisplayController.DisplayHolder.CHANGE_SIZE;
import static com.android.launcher3.util.Executors.UI_HELPER_EXECUTOR;
import static com.android.systemui.shared.system.ActivityManagerWrapper.CLOSE_SYSTEM_WINDOWS_REASON_HOME_KEY;
@@ -29,8 +30,11 @@
import android.content.IntentSender;
import android.os.Bundle;
import android.os.CancellationSignal;
+import android.view.LayoutInflater;
import android.view.View;
+import androidx.annotation.Nullable;
+
import com.android.launcher3.config.FeatureFlags;
import com.android.launcher3.model.WellbeingModel;
import com.android.launcher3.popup.SystemShortcut;
@@ -39,7 +43,10 @@
import com.android.launcher3.statehandlers.BackButtonAlphaHandler;
import com.android.launcher3.statehandlers.DepthController;
import com.android.launcher3.statemanager.StateManager.StateHandler;
+import com.android.launcher3.taskbar.TaskbarContainerView;
+import com.android.launcher3.taskbar.TaskbarController;
import com.android.launcher3.uioverrides.RecentsViewStateController;
+import com.android.launcher3.util.DisplayController;
import com.android.launcher3.util.UiThreadHelper;
import com.android.quickstep.RecentsModel;
import com.android.quickstep.SysUINavigationMode;
@@ -53,7 +60,6 @@
import com.android.quickstep.views.RecentsView;
import com.android.systemui.shared.system.ActivityManagerWrapper;
import com.android.systemui.shared.system.ActivityOptionsCompat;
-import com.android.systemui.shared.system.InteractionJankMonitorWrapper;
import com.android.systemui.shared.system.RemoteAnimationTargetCompat;
import java.util.stream.Stream;
@@ -75,6 +81,8 @@
private OverviewActionsView mActionsView;
+ private @Nullable TaskbarController mTaskbarController;
+
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
@@ -86,6 +94,11 @@
@Override
public void onDestroy() {
SysUINavigationMode.INSTANCE.get(this).removeModeChangeListener(this);
+
+ if (mTaskbarController != null) {
+ mTaskbarController.cleanup();
+ }
+
super.onDestroy();
}
@@ -190,6 +203,29 @@
mActionsView = findViewById(R.id.overview_actions_view);
((RecentsView) getOverviewPanel()).init(mActionsView);
mActionsView.updateVerticalMargin(SysUINavigationMode.getMode(this));
+
+ addTaskbarIfNecessary();
+ }
+
+ @Override
+ public void onDisplayInfoChanged(DisplayController.Info info, int flags) {
+ super.onDisplayInfoChanged(info, flags);
+ if ((flags & CHANGE_SIZE) != 0) {
+ addTaskbarIfNecessary();
+ }
+ }
+
+ private void addTaskbarIfNecessary() {
+ if (mTaskbarController != null) {
+ mTaskbarController.cleanup();
+ mTaskbarController = null;
+ }
+ if (FeatureFlags.ENABLE_TASKBAR.get() && mDeviceProfile.isTablet) {
+ TaskbarContainerView taskbarContainer = (TaskbarContainerView) LayoutInflater.from(this)
+ .inflate(R.layout.taskbar, null, false);
+ mTaskbarController = new TaskbarController(this, taskbarContainer);
+ mTaskbarController.init();
+ }
}
public <T extends OverviewActionsView> T getActionsView() {
diff --git a/quickstep/src/com/android/launcher3/taskbar/TaskbarContainerView.java b/quickstep/src/com/android/launcher3/taskbar/TaskbarContainerView.java
new file mode 100644
index 0000000..0093e66
--- /dev/null
+++ b/quickstep/src/com/android/launcher3/taskbar/TaskbarContainerView.java
@@ -0,0 +1,46 @@
+/*
+ * Copyright (C) 2021 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 android.content.Context;
+import android.util.AttributeSet;
+import android.widget.FrameLayout;
+
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+
+/**
+ * Top-level ViewGroup that hosts the TaskbarView as well as Views created by it such as Folder.
+ */
+public class TaskbarContainerView extends FrameLayout {
+ public TaskbarContainerView(@NonNull Context context) {
+ this(context, null);
+ }
+
+ public TaskbarContainerView(@NonNull Context context, @Nullable AttributeSet attrs) {
+ this(context, attrs, 0);
+ }
+
+ public TaskbarContainerView(@NonNull Context context, @Nullable AttributeSet attrs,
+ int defStyleAttr) {
+ this(context, attrs, defStyleAttr, 0);
+ }
+
+ public TaskbarContainerView(@NonNull Context context, @Nullable AttributeSet attrs,
+ int defStyleAttr, int defStyleRes) {
+ super(context, attrs, defStyleAttr, defStyleRes);
+ }
+}
diff --git a/quickstep/src/com/android/launcher3/taskbar/TaskbarController.java b/quickstep/src/com/android/launcher3/taskbar/TaskbarController.java
new file mode 100644
index 0000000..7be1b92
--- /dev/null
+++ b/quickstep/src/com/android/launcher3/taskbar/TaskbarController.java
@@ -0,0 +1,111 @@
+/*
+ * Copyright (C) 2021 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 android.view.ViewGroup.LayoutParams.MATCH_PARENT;
+import static android.view.WindowManager.LayoutParams.LAYOUT_IN_DISPLAY_CUTOUT_MODE_ALWAYS;
+import static android.view.WindowManager.LayoutParams.TYPE_APPLICATION_OVERLAY;
+
+import static com.android.systemui.shared.system.WindowManagerWrapper.ITYPE_BOTTOM_TAPPABLE_ELEMENT;
+import static com.android.systemui.shared.system.WindowManagerWrapper.ITYPE_EXTRA_NAVIGATION_BAR;
+
+import android.graphics.PixelFormat;
+import android.graphics.Point;
+import android.view.Gravity;
+import android.view.WindowManager;
+
+import com.android.launcher3.BaseQuickstepLauncher;
+import com.android.launcher3.R;
+import com.android.systemui.shared.system.WindowManagerWrapper;
+
+/**
+ * Interfaces with Launcher/WindowManager/SystemUI to determine what to show in TaskbarView.
+ */
+public class TaskbarController {
+
+ private static final String WINDOW_TITLE = "Taskbar";
+
+ private final TaskbarContainerView mTaskbarContainerView;
+ private final TaskbarView mTaskbarView;
+ private final BaseQuickstepLauncher mLauncher;
+ private final WindowManager mWindowManager;
+ // Layout width and height of the Taskbar in the default state.
+ private final Point mTaskbarSize;
+
+ private WindowManager.LayoutParams mWindowLayoutParams;
+
+ public TaskbarController(BaseQuickstepLauncher launcher,
+ TaskbarContainerView taskbarContainerView) {
+ mLauncher = launcher;
+ mTaskbarContainerView = taskbarContainerView;
+ mTaskbarView = mTaskbarContainerView.findViewById(R.id.taskbar_view);
+ mWindowManager = mLauncher.getWindowManager();
+ mTaskbarSize = new Point(MATCH_PARENT,
+ mLauncher.getResources().getDimensionPixelSize(R.dimen.taskbar_size));
+ }
+
+ /**
+ * Initializes the Taskbar, including adding it to the screen.
+ */
+ public void init() {
+ addToWindowManager();
+ }
+
+ /**
+ * Removes the Taskbar from the screen, and removes any obsolete listeners etc.
+ */
+ public void cleanup() {
+ removeFromWindowManager();
+ }
+
+ private void removeFromWindowManager() {
+ if (mTaskbarContainerView.isAttachedToWindow()) {
+ mWindowManager.removeViewImmediate(mTaskbarContainerView);
+ }
+ }
+
+ private void addToWindowManager() {
+ removeFromWindowManager();
+
+ final int gravity = Gravity.BOTTOM;
+
+ mWindowLayoutParams = new WindowManager.LayoutParams(
+ mTaskbarSize.x,
+ mTaskbarSize.y,
+ TYPE_APPLICATION_OVERLAY,
+ WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE,
+ PixelFormat.TRANSLUCENT);
+ mWindowLayoutParams.setTitle(WINDOW_TITLE);
+ mWindowLayoutParams.packageName = mLauncher.getPackageName();
+ mWindowLayoutParams.gravity = gravity;
+ mWindowLayoutParams.setFitInsetsTypes(0);
+ mWindowLayoutParams.softInputMode = WindowManager.LayoutParams.SOFT_INPUT_ADJUST_NOTHING;
+ mWindowLayoutParams.layoutInDisplayCutoutMode = LAYOUT_IN_DISPLAY_CUTOUT_MODE_ALWAYS;
+
+ WindowManagerWrapper wmWrapper = WindowManagerWrapper.getInstance();
+ wmWrapper.setProvidesInsetsTypes(
+ mWindowLayoutParams,
+ new int[] { ITYPE_EXTRA_NAVIGATION_BAR, ITYPE_BOTTOM_TAPPABLE_ELEMENT }
+ );
+
+ TaskbarContainerView.LayoutParams taskbarLayoutParams =
+ new TaskbarContainerView.LayoutParams(mTaskbarSize.x, mTaskbarSize.y);
+ taskbarLayoutParams.gravity = gravity;
+ mTaskbarView.setLayoutParams(taskbarLayoutParams);
+
+ mWindowManager.addView(mTaskbarContainerView, mWindowLayoutParams);
+ }
+}
diff --git a/quickstep/src/com/android/launcher3/taskbar/TaskbarView.java b/quickstep/src/com/android/launcher3/taskbar/TaskbarView.java
new file mode 100644
index 0000000..5df8d5f
--- /dev/null
+++ b/quickstep/src/com/android/launcher3/taskbar/TaskbarView.java
@@ -0,0 +1,46 @@
+/*
+ * Copyright (C) 2021 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 android.content.Context;
+import android.util.AttributeSet;
+import android.widget.LinearLayout;
+
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+
+/**
+ * Hosts the Taskbar content such as Hotseat and Recent Apps. Drawn on top of other apps.
+ */
+public class TaskbarView extends LinearLayout {
+ public TaskbarView(@NonNull Context context) {
+ this(context, null);
+ }
+
+ public TaskbarView(@NonNull Context context, @Nullable AttributeSet attrs) {
+ this(context, attrs, 0);
+ }
+
+ public TaskbarView(@NonNull Context context, @Nullable AttributeSet attrs,
+ int defStyleAttr) {
+ this(context, attrs, defStyleAttr, 0);
+ }
+
+ public TaskbarView(@NonNull Context context, @Nullable AttributeSet attrs, int defStyleAttr,
+ int defStyleRes) {
+ super(context, attrs, defStyleAttr, defStyleRes);
+ }
+}
diff --git a/src/com/android/launcher3/config/FeatureFlags.java b/src/com/android/launcher3/config/FeatureFlags.java
index 81174d8..1c5c222 100644
--- a/src/com/android/launcher3/config/FeatureFlags.java
+++ b/src/com/android/launcher3/config/FeatureFlags.java
@@ -214,6 +214,9 @@
"ENABLE_APP_PREDICTIONS_WHILE_VISIBLE", true, "Allows app "
+ "predictions to be updated while they are visible to the user.");
+ public static final BooleanFlag ENABLE_TASKBAR = new DeviceFlag(
+ "ENABLE_TASKBAR", false, "Allows a system Taskbar to be shown on larger devices.");
+
public static void initialize(Context context) {
synchronized (sDebugFlags) {
for (DebugFlag flag : sDebugFlags) {