Initial commit of 3 button work

Home, Back and Recents basic functionality working Fixes: 180046394 Change-Id: Ifc5c767e35e88183500d14d14736eb40df436369
2026-02-19 10:48:19 +00:00 · 2021-03-25 12:31:23 -07:00
parent 13e4618b57
commit 16fd85629d
10 changed files with 339 additions and 10 deletions
--- a/quickstep/src/com/android/launcher3/taskbar/TaskbarNavButtonController.java
+++ b/quickstep/src/com/android/launcher3/taskbar/TaskbarNavButtonController.java
@@ -0,0 +1,89 @@
+/*
+ * Copyright 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.content.Intent;
+
+import androidx.annotation.IntDef;
+
+import com.android.quickstep.OverviewCommandHelper;
+import com.android.quickstep.SystemUiProxy;
+import com.android.quickstep.TouchInteractionService;
+
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+
+/**
+ * Controller for 3 button mode in the taskbar.
+ * Handles all the functionality of the various buttons, making/routing the right calls into
+ * launcher or sysui/system.
+ *
+ * TODO: Create callbacks to hook into UI layer since state will change for more context buttons/
+ *       assistant invocation.
+ */
+public class TaskbarNavButtonController {
+    @Retention(RetentionPolicy.SOURCE)
+    @IntDef(value = {
+            BUTTON_BACK,
+            BUTTON_HOME,
+            BUTTON_RECENTS
+    })
+
+    public @interface TaskbarButton {}
+
+    static final int BUTTON_BACK = 1;
+    static final int BUTTON_HOME = BUTTON_BACK << 1;
+    static final int BUTTON_RECENTS = BUTTON_HOME << 1;
+
+
+    private final Context mContext;
+
+    public TaskbarNavButtonController(Context context) {
+        mContext = context;
+    }
+
+    public void onButtonClick(@TaskbarButton int buttonType) {
+        switch (buttonType) {
+            case BUTTON_BACK:
+                executeBack();
+                break;
+            case BUTTON_HOME:
+                navigateHome();
+                break;
+            case BUTTON_RECENTS:
+                navigateToOverview();;
+                break;
+        }
+    }
+
+    private void navigateHome() {
+        mContext.startActivity(new Intent(Intent.ACTION_MAIN)
+                .addCategory(Intent.CATEGORY_HOME)
+                .setFlags(Intent.FLAG_ACTIVITY_NEW_TASK));
+    }
+
+    private void navigateToOverview() {
+        TouchInteractionService.getInstance().getOverviewCommandHelper()
+                .addCommand(OverviewCommandHelper.TYPE_SHOW);
+    }
+
+    private void executeBack() {
+        SystemUiProxy.INSTANCE.getNoCreate().onBackPressed();
+    }
+
+}