Add AllAppsSearchPlugin

Bug: 151089843

Change-Id: I6d61fb9c7855bafee731f47147b3070a1b672071

res/layout/all_apps_content_layout.xml

@@ -0,0 +1,27 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~ 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.
+  -->
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:id="@+id/apps_list_view_override"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:layout_below="@id/search_container_all_apps"
+    android:clipToPadding="false"
+    android:descendantFocusability="afterDescendants"
+    android:focusable="true"
+    android:layout_marginTop="@dimen/all_apps_header_top_padding"
+    android:orientation="vertical">
+</LinearLayout>

src/com/android/launcher3/Launcher.java

@@ -1547,6 +1547,7 @@ public class Launcher extends BaseDraggingActivity implements LauncherExterns,
         mOverlayManager.onActivityDestroyed(this);
         mAppTransitionManager.unregisterRemoteAnimations();
         mUserChangedCallbackCloseable.close();
+        mAllAppsController.onActivityDestroyed();
     }
 
     public LauncherAccessibilityDelegate getAccessibilityDelegate() {

src/com/android/launcher3/allapps/AllAppsTransitionController.java

@@ -1,5 +1,6 @@
 package com.android.launcher3.allapps;
 
+import static com.android.launcher3.LauncherState.ALL_APPS;
 import static com.android.launcher3.LauncherState.ALL_APPS_CONTENT;
 import static com.android.launcher3.LauncherState.ALL_APPS_HEADER_EXTRA;
 import static com.android.launcher3.LauncherState.APPS_VIEW_ITEM_MASK;
@@ -17,7 +18,10 @@ import static com.android.launcher3.util.SystemUiController.UI_STATE_ALL_APPS;
 import android.animation.Animator;
 import android.animation.AnimatorListenerAdapter;
 import android.animation.ObjectAnimator;
+import android.content.Context;
 import android.util.FloatProperty;
+import android.view.View;
+import android.view.ViewGroup;
 import android.view.animation.Interpolator;
 
 import com.android.launcher3.DeviceProfile;
@@ -30,8 +34,11 @@ import com.android.launcher3.anim.AnimationSuccessListener;
 import com.android.launcher3.anim.PendingAnimation;
 import com.android.launcher3.anim.PropertySetter;
 import com.android.launcher3.states.StateAnimationConfig;
+import com.android.launcher3.uioverrides.plugins.PluginManagerWrapper;
 import com.android.launcher3.util.Themes;
 import com.android.launcher3.views.ScrimView;
+import com.android.systemui.plugins.AllAppsSearchPlugin;
+import com.android.systemui.plugins.PluginListener;
 
 /**
  * Handles AllApps view transition.
@@ -43,7 +50,8 @@ import com.android.launcher3.views.ScrimView;
  * If release velocity < THRES1, snap according to either top or bottom depending on whether it's
  * closer to top or closer to the page indicator.
  */
-public class AllAppsTransitionController implements StateHandler, OnDeviceProfileChangeListener {
+public class AllAppsTransitionController implements StateHandler, OnDeviceProfileChangeListener,
+        PluginListener<AllAppsSearchPlugin> {
 
     public static final FloatProperty<AllAppsTransitionController> ALL_APPS_PROGRESS =
             new FloatProperty<AllAppsTransitionController>("allAppsProgress") {
@@ -79,6 +87,9 @@ public class AllAppsTransitionController implements StateHandler, OnDeviceProfil
 
     private float mScrollRangeDelta = 0;
 
+    private AllAppsSearchPlugin mPlugin;
+    private View mPluginContent;
+
     public AllAppsTransitionController(Launcher l) {
         mLauncher = l;
         mShiftRange = mLauncher.getDeviceProfile().heightPx;
@@ -145,6 +156,7 @@ public class AllAppsTransitionController implements StateHandler, OnDeviceProfil
         setProgress(state.getVerticalProgress(mLauncher));
         setAlphas(state, new StateAnimationConfig(), NO_ANIM_PROPERTY_SETTER);
         onProgressAnimationEnd();
+        updatePlugin(state);
     }
 
     /**
@@ -178,6 +190,20 @@ public class AllAppsTransitionController implements StateHandler, OnDeviceProfil
         builder.add(anim);
 
         setAlphas(toState, config, builder);
+
+        updatePlugin(toState);
+    }
+
+    private void updatePlugin(LauncherState toState) {
+        if (mPlugin == null) return;
+        if (toState == ALL_APPS) {
+            // TODO: change this from toggle event to continuous transition event.
+            mPlugin.setEditText(mAppsView.getSearchUiManager().setTextSearchEnabled(true));
+        } else {
+            mAppsView.getSearchUiManager().setTextSearchEnabled(false);
+            mPlugin.setEditText(null);
+        }
+
     }
 
     public Animator createSpringAnimation(float... progressValues) {
@@ -196,10 +222,15 @@ public class AllAppsTransitionController implements StateHandler, OnDeviceProfil
 
         Interpolator allAppsFade = config.getInterpolator(ANIM_ALL_APPS_FADE, LINEAR);
         Interpolator headerFade = config.getInterpolator(ANIM_ALL_APPS_HEADER_FADE, allAppsFade);
-        setter.setViewAlpha(mAppsView.getContentView(), hasAllAppsContent ? 1 : 0, allAppsFade);
-        setter.setViewAlpha(mAppsView.getScrollBar(), hasAllAppsContent ? 1 : 0, allAppsFade);
-        mAppsView.getFloatingHeaderView().setContentVisibility(hasHeaderExtra, hasAllAppsContent,
-                setter, headerFade, allAppsFade);
+
+        if (mPlugin == null) {
+            setter.setViewAlpha(mAppsView.getContentView(), hasAllAppsContent ? 1 : 0, allAppsFade);
+            setter.setViewAlpha(mAppsView.getScrollBar(), hasAllAppsContent ? 1 : 0, allAppsFade);
+            mAppsView.getFloatingHeaderView().setContentVisibility(hasHeaderExtra,
+                    hasAllAppsContent, setter, headerFade, allAppsFade);
+        } else {
+            setter.setViewAlpha(mPluginContent, hasAllAppsContent ? 1 : 0, allAppsFade);
+        }
         mAppsView.getSearchUiManager().setContentVisibility(visibleElements, setter, allAppsFade);
 
         setter.setInt(mScrimView, ScrimView.DRAG_HANDLE_ALPHA,
@@ -215,6 +246,8 @@ public class AllAppsTransitionController implements StateHandler, OnDeviceProfil
     public void setupViews(AllAppsContainerView appsView, ScrimView scrimView) {
         mAppsView = appsView;
         mScrimView = scrimView;
+        PluginManagerWrapper.INSTANCE.get(mLauncher)
+                .addPluginListener(this, AllAppsSearchPlugin.class, false);
     }
 
     /**
@@ -238,4 +271,24 @@ public class AllAppsTransitionController implements StateHandler, OnDeviceProfil
             mAppsView.reset(false /* animate */);
         }
     }
+
+    @Override
+    public void onPluginConnected(AllAppsSearchPlugin plugin, Context context) {
+        mPlugin = plugin;
+        mPluginContent = mLauncher.getLayoutInflater().inflate(
+                R.layout.all_apps_content_layout, mAppsView, false);
+        mAppsView.addView(mPluginContent);
+        mPluginContent.setAlpha(0f);
+        mPlugin.setup((ViewGroup) mPluginContent);
+    }
+
+    @Override
+    public void onPluginDisconnected(AllAppsSearchPlugin plugin) {
+        mPlugin = null;
+        mAppsView.removeView(mPluginContent);
+    }
+
+    public void onActivityDestroyed() {
+        PluginManagerWrapper.INSTANCE.get(mLauncher).removePluginListener(this);
+    }
 }

src/com/android/launcher3/allapps/SearchUiManager.java

@@ -18,6 +18,9 @@ package com.android.launcher3.allapps;
 import android.graphics.Rect;
 import android.view.KeyEvent;
 import android.view.animation.Interpolator;
+import android.widget.EditText;
+
+import androidx.annotation.Nullable;
 
 import com.android.launcher3.anim.PropertySetter;
 
@@ -52,4 +55,14 @@ public interface SearchUiManager {
      */
     void setContentVisibility(int visibleElements, PropertySetter setter,
             Interpolator interpolator);
+
+    /**
+     * Called to control how the search UI result should be handled.
+     *
+     * @param isEnabled when {@code true}, the search is all handled inside AOSP
+     *                  and is not overlayable.
+     * @return the searchbox edit text object
+     */
+    @Nullable
+    EditText setTextSearchEnabled(boolean isEnabled);
 }

src/com/android/launcher3/allapps/search/AppsSearchContainerLayout.java

@@ -33,6 +33,7 @@ import android.view.KeyEvent;
 import android.view.View;
 import android.view.ViewGroup.MarginLayoutParams;
 import android.view.animation.Interpolator;
+import android.widget.EditText;
 
 import com.android.launcher3.BaseDraggingActivity;
 import com.android.launcher3.DeviceProfile;
@@ -214,4 +215,9 @@ public class AppsSearchContainerLayout extends ExtendedEditText
             Interpolator interpolator) {
         setter.setViewAlpha(this, (visibleElements & ALL_APPS_HEADER) != 0 ? 1 : 0, interpolator);
     }
+
+    @Override
+    public EditText setTextSearchEnabled(boolean isEnabled) {
+        return this;
+    }
 }

src_plugins/com/android/systemui/plugins/AllAppsSearchPlugin.java

@@ -0,0 +1,34 @@
+/*
+ * 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.systemui.plugins;
+
+import android.view.ViewGroup;
+import android.widget.EditText;
+
+import com.android.systemui.plugins.annotations.ProvidesInterface;
+
+/**
+ * Implement this plugin interface to add a row of views to the top of the all apps drawer.
+ */
+@ProvidesInterface(action = AllAppsSearchPlugin.ACTION, version = AllAppsSearchPlugin.VERSION)
+public interface AllAppsSearchPlugin extends Plugin {
+    String ACTION = "com.android.systemui.action.PLUGIN_ALL_APPS_SEARCH_ACTIONS";
+    int VERSION = 1;
+
+    void setup(ViewGroup parent);
+    void setEditText(EditText editText);
+}