Moving taskbar lifecycle to TouchInteractionService

> Inflating taskbar views with a non-launcher window context > Removing separate taskbar view in Launcher > Handling taskbar icon clicks directly instead of going via launcher > Fixing some relayouts during show/hide animation Bug: 187353581 Test: Manual Change-Id: Ia7d44acbb770bf0345922234b3daa5cc040a5843
2026-03-01 16:26:47 +00:00 · 2021-05-05 14:04:11 -07:00
parent eed1711038
commit e215fb730b
29 changed files with 948 additions and 982 deletions
--- a/quickstep/src/com/android/launcher3/taskbar/TaskbarManager.java
+++ b/quickstep/src/com/android/launcher3/taskbar/TaskbarManager.java
@@ -0,0 +1,157 @@
+/*
+ * 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.Display.DEFAULT_DISPLAY;
+import static android.view.WindowManager.LayoutParams.TYPE_APPLICATION_OVERLAY;
+
+import static com.android.launcher3.util.DisplayController.CHANGE_ACTIVE_SCREEN;
+import static com.android.launcher3.util.DisplayController.CHANGE_DENSITY;
+import static com.android.launcher3.util.DisplayController.CHANGE_SUPPORTED_BOUNDS;
+import static com.android.systemui.shared.system.QuickStepContract.SYSUI_STATE_IME_SHOWING;
+
+import android.content.Context;
+import android.hardware.display.DisplayManager;
+import android.inputmethodservice.InputMethodService;
+import android.view.Display;
+
+import androidx.annotation.Nullable;
+
+import com.android.launcher3.BaseQuickstepLauncher;
+import com.android.launcher3.DeviceProfile;
+import com.android.launcher3.LauncherAppState;
+import com.android.launcher3.config.FeatureFlags;
+import com.android.launcher3.util.DisplayController;
+import com.android.launcher3.util.DisplayController.Info;
+import com.android.quickstep.SysUINavigationMode;
+import com.android.quickstep.SysUINavigationMode.Mode;
+import com.android.quickstep.TouchInteractionService;
+
+/**
+ * Class to manager taskbar lifecycle
+ */
+public class TaskbarManager implements DisplayController.DisplayInfoChangeListener,
+        SysUINavigationMode.NavigationModeChangeListener {
+
+    private final Context mContext;
+    private final DisplayController mDisplayController;
+    private final SysUINavigationMode mSysUINavigationMode;
+    private final TaskbarNavButtonController mNavButtonController;
+
+    private TaskbarActivityContext mTaskbarActivityContext;
+    private BaseQuickstepLauncher mLauncher;
+
+    private static final int CHANGE_FLAGS =
+            CHANGE_ACTIVE_SCREEN | CHANGE_DENSITY | CHANGE_SUPPORTED_BOUNDS;
+
+    public TaskbarManager(TouchInteractionService service) {
+        mDisplayController = DisplayController.INSTANCE.get(service);
+        mSysUINavigationMode = SysUINavigationMode.INSTANCE.get(service);
+        Display display =
+                service.getSystemService(DisplayManager.class).getDisplay(DEFAULT_DISPLAY);
+        mContext = service.createWindowContext(display, TYPE_APPLICATION_OVERLAY, null);
+        mNavButtonController = new TaskbarNavButtonController(service);
+
+        mDisplayController.addChangeListener(this);
+        mSysUINavigationMode.addModeChangeListener(this);
+        recreateTaskbar();
+    }
+
+    @Override
+    public void onNavigationModeChanged(Mode newMode) {
+        recreateTaskbar();
+    }
+
+    @Override
+    public void onDisplayInfoChanged(Context context, Info info, int flags) {
+        if ((flags & CHANGE_FLAGS) != 0) {
+            recreateTaskbar();
+        }
+    }
+
+    private void destroyExistingTaskbar() {
+        if (mTaskbarActivityContext != null) {
+            mTaskbarActivityContext.onDestroy();
+            mTaskbarActivityContext = null;
+        }
+    }
+
+    /**
+     * Sets or clears a launcher to act as taskbar callback
+     */
+    public void setLauncher(@Nullable BaseQuickstepLauncher launcher) {
+        mLauncher = launcher;
+        if (mTaskbarActivityContext != null) {
+            mTaskbarActivityContext.setUIController(mLauncher == null
+                    ? TaskbarUIController.DEFAULT
+                    : new TaskbarController(launcher, mTaskbarActivityContext));
+        }
+    }
+
+    private void recreateTaskbar() {
+        destroyExistingTaskbar();
+        if (!FeatureFlags.ENABLE_TASKBAR.get()) {
+            return;
+        }
+        DeviceProfile dp = LauncherAppState.getIDP(mContext).getDeviceProfile(mContext);
+        if (!dp.isTaskbarPresent) {
+            return;
+        }
+        mTaskbarActivityContext = new TaskbarActivityContext(
+                mContext, dp.copy(mContext), mNavButtonController);
+        mTaskbarActivityContext.init();
+        if (mLauncher != null) {
+            mTaskbarActivityContext.setUIController(
+                    new TaskbarController(mLauncher, mTaskbarActivityContext));
+        }
+    }
+
+    /**
+     * See {@link com.android.systemui.shared.system.QuickStepContract.SystemUiStateFlags}
+     * @param systemUiStateFlags The latest SystemUiStateFlags
+     */
+    public void onSystemUiFlagsChanged(int systemUiStateFlags) {
+        boolean isImeVisible = (systemUiStateFlags & SYSUI_STATE_IME_SHOWING) != 0;
+        if (mTaskbarActivityContext != null) {
+            mTaskbarActivityContext.getIconController().setImeIsVisible(isImeVisible);
+        }
+    }
+
+    /**
+     * When in 3 button nav, the above doesn't get called since we prevent sysui nav bar from
+     * instantiating at all, which is what's responsible for sending sysui state flags over.
+     *
+     * @param vis IME visibility flag
+     * @param backDisposition Used to determine back button behavior for software keyboard
+     *                        See BACK_DISPOSITION_* constants in {@link InputMethodService}
+     */
+    public void updateImeStatus(int displayId, int vis, int backDisposition,
+            boolean showImeSwitcher) {
+        if (mTaskbarActivityContext != null) {
+            mTaskbarActivityContext.getIconController()
+                    .updateImeStatus(displayId, vis, showImeSwitcher);
+        }
+    }
+
+    /**
+     * Called when the manager is no longer needed
+     */
+    public void destroy() {
+        destroyExistingTaskbar();
+        mDisplayController.removeChangeListener(this);
+        mSysUINavigationMode.removeModeChangeListener(this);
+    }
+}