Adding a Plugin to attach things under QQS

This plugin responds to expansion and changes in theme, ui, etc.

Test: manual

Change-Id: I5d866a4fff491aa6273edfb765e538864b270534

7 files changed, 250 insertions, 2 deletions

diff --git a/packages/SystemUI/docs/plugin_hooks.md b/packages/SystemUI/docs/plugin_hooks.md
index 9fe2e181971a..2fb0c996111a 100644
--- a/packages/SystemUI/docs/plugin_hooks.md
+++ b/packages/SystemUI/docs/plugin_hooks.md
@@ -56,6 +56,11 @@ Expected interface: [ClockPlugin](/packages/SystemUI/plugin/src/com/android/syst
 
 Use: Allows replacement of the keyguard main clock.
 
+### Action: com.android.systemui.action.PLUGIN_NPV
+Expected interface: [NPVPlugin](/packages/SystemUI/plugin/src/com/android/systemui/plugins/NPVPlugin.java)
+
+Use: Attach a view under QQS for prototyping.
+
 # Global plugin dependencies
 These classes can be accessed by any plugin using PluginDependency as long as they @Requires them.
 
diff --git a/packages/SystemUI/plugin/src/com/android/systemui/plugins/NPVPlugin.java b/packages/SystemUI/plugin/src/com/android/systemui/plugins/NPVPlugin.java
new file mode 100644
index 000000000000..1426266a7048
--- /dev/null
+++ b/packages/SystemUI/plugin/src/com/android/systemui/plugins/NPVPlugin.java
@@ -0,0 +1,52 @@
+/*
+ * Copyright (C) 2019 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.View;
+import android.widget.FrameLayout;
+
+import com.android.systemui.plugins.annotations.ProvidesInterface;
+
+/**
+ * Plugin to attach custom views under QQS.
+ *
+ * A parent view is provided to the plugin to which they can add Views.
+ * <br>
+ * The parent is a {@link FrameLayout} with same background as QS and 96dp height.
+ *
+ * {@see NPVPluginManager}
+ * {@see status_bar_expanded_plugin_frame}
+ */
+@ProvidesInterface(action = NPVPlugin.ACTION, version = NPVPlugin.VERSION)
+public interface NPVPlugin extends Plugin {
+    String ACTION = "com.android.systemui.action.PLUGIN_NPV";
+    int VERSION = 1;
+
+    /**
+     * Attach views to the parent.
+     *
+     * @param parent a {@link FrameLayout} to which to attach views. Preferably a root view.
+     * @return a view attached to parent.
+     */
+    View attachToRoot(FrameLayout parent);
+
+    /**
+     * Indicate to the plugin when it is listening (QS expanded)
+     * @param listening
+     */
+    default void setListening(boolean listening) {};
+}
diff --git a/packages/SystemUI/res/layout/status_bar_expanded.xml b/packages/SystemUI/res/layout/status_bar_expanded.xml
index 7a9400887c75..e7c6b2574f5f 100644
--- a/packages/SystemUI/res/layout/status_bar_expanded.xml
+++ b/packages/SystemUI/res/layout/status_bar_expanded.xml
@@ -111,4 +111,6 @@
         android:visibility="invisible"
         android:background="@drawable/qs_navbar_scrim" />
 
+    <include layout="@layout/status_bar_expanded_plugin_frame"/>
+
 </com.android.systemui.statusbar.phone.NotificationPanelView>
diff --git a/packages/SystemUI/res/layout/status_bar_expanded_plugin_frame.xml b/packages/SystemUI/res/layout/status_bar_expanded_plugin_frame.xml
new file mode 100644
index 000000000000..4849dfb777ed
--- /dev/null
+++ b/packages/SystemUI/res/layout/status_bar_expanded_plugin_frame.xml
@@ -0,0 +1,29 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  Copyright (C) 2019 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.
+-->
+
+<FrameLayout
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    android:id="@+id/plugin_frame"
+    android:theme="@style/qs_theme"
+    android:layout_width="@dimen/qs_panel_width"
+    android:layout_height="96dp"
+    android:layout_gravity="center_horizontal"
+    android:layout_marginTop="@*android:dimen/quick_qs_total_height"
+    android:layout_marginLeft="@dimen/notification_side_paddings"
+    android:layout_marginRight="@dimen/notification_side_paddings"
+    android:visibility="gone"
+    android:background="@drawable/qs_background_primary"/>
\ No newline at end of file
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/phone/NPVPluginManager.kt b/packages/SystemUI/src/com/android/systemui/statusbar/phone/NPVPluginManager.kt
new file mode 100644
index 000000000000..7dcc2fcfe2b2
--- /dev/null
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/phone/NPVPluginManager.kt
@@ -0,0 +1,92 @@
+/*
+ * Copyright (C) 2019 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.statusbar.phone
+
+import android.content.Context
+import android.view.View
+import android.widget.FrameLayout
+import com.android.systemui.plugins.NPVPlugin
+import com.android.systemui.plugins.PluginListener
+import com.android.systemui.qs.TouchAnimator
+import com.android.systemui.shared.plugins.PluginManager
+
+/**
+ * Manages the NPVPlugin view and state
+ *
+ * Abstracts NPVPlugin from NPV and helps animate on expansion and respond to changes in Config.
+ */
+class NPVPluginManager(
+    var parent: FrameLayout,
+    val pluginManager: PluginManager
+) : PluginListener<NPVPlugin> {
+
+    private var plugin: NPVPlugin? = null
+    private var animator = createAnimator()
+
+    private fun createAnimator() = TouchAnimator.Builder()
+            .addFloat(parent, "alpha", 1f, 0f)
+            .addFloat(parent, "scaleY", 1f, 0f)
+            .build()
+
+    init {
+        pluginManager.addPluginListener(NPVPlugin.ACTION, this, NPVPlugin::class.java, false)
+        parent.pivotY = 0f
+    }
+
+    override fun onPluginConnected(plugin: NPVPlugin, pluginContext: Context) {
+        parent.removeAllViews()
+        plugin.attachToRoot(parent)
+        this.plugin = plugin
+        parent.visibility = View.VISIBLE
+    }
+
+    fun changeVisibility(visibility: Int) {
+        parent.visibility = if (plugin != null) visibility else View.GONE
+    }
+
+    fun destroy() {
+        plugin?.onDestroy()
+        pluginManager.removePluginListener(this)
+    }
+
+    override fun onPluginDisconnected(plugin: NPVPlugin) {
+        if (this.plugin == plugin) {
+            this.plugin = null
+            parent.removeAllViews()
+            parent.visibility = View.GONE
+        }
+    }
+
+    fun setListening(listening: Boolean) {
+        plugin?.setListening(listening)
+    }
+
+    fun setExpansion(expansion: Float, headerTranslation: Float, heightDiff: Float) {
+        parent.setTranslationY(expansion * heightDiff + headerTranslation)
+        if (!expansion.isNaN()) animator.setPosition(expansion)
+    }
+
+    fun replaceFrameLayout(newParent: FrameLayout) {
+        newParent.visibility = parent.visibility
+        parent.removeAllViews()
+        plugin?.attachToRoot(newParent)
+        parent = newParent
+        animator = createAnimator()
+    }
+
+    fun getHeight() = if (plugin != null) parent.height else 0
+}
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/phone/NotificationPanelView.java b/packages/SystemUI/src/com/android/systemui/statusbar/phone/NotificationPanelView.java
index a58ba858e518..f5835765bdea 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/phone/NotificationPanelView.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/phone/NotificationPanelView.java
@@ -393,6 +393,10 @@ public class NotificationPanelView extends PanelView implements
     private boolean mAllowExpandForSmallExpansion;
     private Runnable mExpandAfterLayoutRunnable;
 
+    private PluginManager mPluginManager;
+    private FrameLayout mPluginFrame;
+    private NPVPluginManager mNPVPluginManager;
+
     @Inject
     public NotificationPanelView(@Named(VIEW_CONTEXT) Context context, AttributeSet attrs,
             InjectionInflationController injectionInflationController,
@@ -400,7 +404,8 @@ public class NotificationPanelView extends PanelView implements
             PulseExpansionHandler pulseExpansionHandler,
             DynamicPrivacyController dynamicPrivacyController,
             KeyguardBypassController bypassController,
-            FalsingManager falsingManager) {
+            FalsingManager falsingManager,
+            PluginManager pluginManager) {
         super(context, attrs);
         setWillNotDraw(!DEBUG);
         mInjectionInflationController = injectionInflationController;
@@ -431,6 +436,7 @@ public class NotificationPanelView extends PanelView implements
         });
         mBottomAreaShadeAlphaAnimator.setDuration(160);
         mBottomAreaShadeAlphaAnimator.setInterpolator(Interpolators.ALPHA_OUT);
+        mPluginManager = pluginManager;
     }
 
     /**
@@ -465,6 +471,9 @@ public class NotificationPanelView extends PanelView implements
         mKeyguardBottomArea = findViewById(R.id.keyguard_bottom_area);
         mQsNavbarScrim = findViewById(R.id.qs_navbar_scrim);
         mLastOrientation = getResources().getConfiguration().orientation;
+        mPluginFrame = findViewById(R.id.plugin_frame);
+        mNPVPluginManager = new NPVPluginManager(mPluginFrame, mPluginManager);
+
 
         initBottomArea();
 
@@ -584,6 +593,19 @@ public class NotificationPanelView extends PanelView implements
             lp.gravity = panelGravity;
             mNotificationStackScroller.setLayoutParams(lp);
         }
+        int sideMargin = res.getDimensionPixelOffset(R.dimen.notification_side_paddings);
+        int topMargin =
+                res.getDimensionPixelOffset(com.android.internal.R.dimen.quick_qs_total_height);
+        lp = (FrameLayout.LayoutParams) mPluginFrame.getLayoutParams();
+        if (lp.width != qsWidth || lp.gravity != panelGravity || lp.leftMargin != sideMargin
+                || lp.rightMargin != sideMargin || lp.topMargin != topMargin) {
+            lp.width = qsWidth;
+            lp.gravity = panelGravity;
+            lp.leftMargin = sideMargin;
+            lp.rightMargin = sideMargin;
+            lp.topMargin = topMargin;
+            mPluginFrame.setLayoutParams(lp);
+        }
     }
 
     @Override
@@ -650,6 +672,43 @@ public class NotificationPanelView extends PanelView implements
         if (mOnReinflationListener != null) {
             mOnReinflationListener.run();
         }
+        reinflatePluginContainer();
+    }
+
+    @Override
+    public void onUiModeChanged() {
+        reinflatePluginContainer();
+    }
+
+    private void reinflatePluginContainer() {
+        int index = indexOfChild(mPluginFrame);
+        removeView(mPluginFrame);
+        mPluginFrame = (FrameLayout) mInjectionInflationController
+                .injectable(LayoutInflater.from(mContext)).inflate(
+                        R.layout.status_bar_expanded_plugin_frame,
+                        this,
+                        false);
+        addView(mPluginFrame, index);
+
+        Resources res = getResources();
+        int qsWidth = res.getDimensionPixelSize(R.dimen.qs_panel_width);
+        int panelGravity = getResources().getInteger(R.integer.notification_panel_layout_gravity);
+        FrameLayout.LayoutParams lp;
+        int sideMargin = res.getDimensionPixelOffset(R.dimen.notification_side_paddings);
+        int topMargin =
+                res.getDimensionPixelOffset(com.android.internal.R.dimen.quick_qs_total_height);
+        lp = (FrameLayout.LayoutParams) mPluginFrame.getLayoutParams();
+        if (lp.width != qsWidth || lp.gravity != panelGravity || lp.leftMargin != sideMargin
+                || lp.rightMargin != sideMargin || lp.topMargin != topMargin) {
+            lp.width = qsWidth;
+            lp.gravity = panelGravity;
+            lp.leftMargin = sideMargin;
+            lp.rightMargin = sideMargin;
+            lp.topMargin = topMargin;
+            mPluginFrame.setLayoutParams(lp);
+        }
+
+        mNPVPluginManager.replaceFrameLayout(mPluginFrame);
     }
 
     private void initBottomArea() {
@@ -679,6 +738,7 @@ public class NotificationPanelView extends PanelView implements
         int oldMaxHeight = mQsMaxExpansionHeight;
         if (mQs != null) {
             mQsMinExpansionHeight = mKeyguardShowing ? 0 : mQs.getQsMinExpansionHeight();
+            mQsMinExpansionHeight += mNPVPluginManager.getHeight();
             mQsMaxExpansionHeight = mQs.getDesiredHeight();
             mNotificationStackScroller.setMaxTopPadding(
                     mQsMaxExpansionHeight + mQsNotificationTopPadding);
@@ -1784,6 +1844,9 @@ public class NotificationPanelView extends PanelView implements
                 mBarState != StatusBarState.KEYGUARD && (!mQsExpanded
                         || mQsExpansionFromOverscroll));
         updateEmptyShadeView();
+        mNPVPluginManager.changeVisibility((mBarState != StatusBarState.KEYGUARD)
+                ? View.VISIBLE
+                : View.INVISIBLE);
         mQsNavbarScrim.setVisibility(mBarState == StatusBarState.SHADE && mQsExpanded
                 && !mStackScrollerOverscrolling && mQsScrimEnabled
                 ? View.VISIBLE
@@ -1839,6 +1902,8 @@ public class NotificationPanelView extends PanelView implements
         if (mQs == null) return;
         float qsExpansionFraction = getQsExpansionFraction();
         mQs.setQsExpansion(qsExpansionFraction, getHeaderTranslation());
+        int heightDiff = mQs.getDesiredHeight() - mQs.getQsMinExpansionHeight();
+        mNPVPluginManager.setExpansion(qsExpansionFraction, getHeaderTranslation(), heightDiff);
         mNotificationStackScroller.setQsExpansionFraction(qsExpansionFraction);
     }
 
@@ -2259,6 +2324,7 @@ public class NotificationPanelView extends PanelView implements
                 appearAmount = mNotificationStackScroller.calculateAppearFractionBypass();
             }
             startHeight = -mQs.getQsMinExpansionHeight();
+            startHeight -= mNPVPluginManager.getHeight();
         }
         float translation = MathUtils.lerp(startHeight, 0,
                 Math.min(1.0f, appearAmount))
@@ -2399,6 +2465,7 @@ public class NotificationPanelView extends PanelView implements
         mKeyguardStatusBar.setListening(listening);
         if (mQs == null) return;
         mQs.setListening(listening);
+        mNPVPluginManager.setListening(listening);
     }
 
     @Override
diff --git a/packages/SystemUI/tests/src/com/android/systemui/statusbar/phone/NotificationPanelViewTest.java b/packages/SystemUI/tests/src/com/android/systemui/statusbar/phone/NotificationPanelViewTest.java
index a96efd7d2fc2..86ab3a70c3ac 100644
--- a/packages/SystemUI/tests/src/com/android/systemui/statusbar/phone/NotificationPanelViewTest.java
+++ b/packages/SystemUI/tests/src/com/android/systemui/statusbar/phone/NotificationPanelViewTest.java
@@ -38,6 +38,7 @@ import com.android.systemui.SystemUIFactory;
 import com.android.systemui.SysuiTestCase;
 import com.android.systemui.plugins.FalsingManager;
 import com.android.systemui.plugins.statusbar.StatusBarStateController;
+import com.android.systemui.shared.plugins.PluginManager;
 import com.android.systemui.statusbar.KeyguardAffordanceView;
 import com.android.systemui.statusbar.NotificationLockscreenUserManager;
 import com.android.systemui.statusbar.NotificationShelf;
@@ -195,7 +196,7 @@ public class NotificationPanelViewTest extends SysuiTestCase {
                             SystemUIFactory.getInstance().getRootComponent()),
                     coordinator, expansionHandler, mock(DynamicPrivacyController.class),
                     bypassController,
-                    mFalsingManager);
+                    mFalsingManager, mock(PluginManager.class));
             mNotificationStackScroller = mNotificationStackScrollLayout;
             mKeyguardStatusView = NotificationPanelViewTest.this.mKeyguardStatusView;
             mKeyguardStatusBar = NotificationPanelViewTest.this.mKeyguardStatusBar;