Long-press on an app to reveal its shortcuts.

- Add ShortcutsContainerListener to icons on workspace, folders, and
  all apps. This handles long-press and forwards following touches to
  the DeepShortcutsContainer that is created.
- Drag over shortcut before lifting finger to launch it.
- Shortcuts are rendered in pill-shaped DeepShortcutViews,
  which are inside DeepShortcutContainer on DragLayer.
- The shortcut container orients above or below the icon, and left or
  right-aligns with it. Biases for above + left-align.
- Long press a DeepShortcutPill to drag and pin it to the workspace.

Bug: 28980830
Change-Id: I08658d13ae51fe53064644e8d8f7b42f150fdd7d

5 files changed, 92 insertions, 1 deletions

diff --git a/res/drawable/bg_white_pill.xml b/res/drawable/bg_white_pill.xml
new file mode 100644
index 000000000..29c3145cc
--- /dev/null
+++ b/res/drawable/bg_white_pill.xml
@@ -0,0 +1,22 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2016 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.
+-->
+
+<shape xmlns:android="http://schemas.android.com/apk/res/android"
+       android:shape="rectangle">
+    <solid android:color="@color/quantum_panel_bg_color" />
+    <size android:height="48dp" />
+    <corners android:radius="24dp" />
+</shape>
\ No newline at end of file
diff --git a/res/layout/deep_shortcut.xml b/res/layout/deep_shortcut.xml
new file mode 100644
index 000000000..b87923564
--- /dev/null
+++ b/res/layout/deep_shortcut.xml
@@ -0,0 +1,20 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2016 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.shortcuts.DeepShortcutView
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    style="@style/Icon.DeepShortcut"
+    android:focusable="true"/>
diff --git a/res/layout/deep_shortcuts_container.xml b/res/layout/deep_shortcuts_container.xml
new file mode 100644
index 000000000..0441995f1
--- /dev/null
+++ b/res/layout/deep_shortcuts_container.xml
@@ -0,0 +1,25 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2016 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.shortcuts.DeepShortcutsContainer
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    android:id="@+id/deep_shortcuts_container"
+    android:layout_width="wrap_content"
+    android:layout_height="wrap_content"
+    android:elevation="@dimen/deep_shortcuts_elevation"
+    android:orientation="vertical">
+
+</com.android.launcher3.shortcuts.DeepShortcutsContainer>
\ No newline at end of file
diff --git a/res/values/dimens.xml b/res/values/dimens.xml
index 02c6c704d..c7dd3753b 100644
--- a/res/values/dimens.xml
+++ b/res/values/dimens.xml
@@ -154,4 +154,14 @@
     <dimen name="pending_widget_min_padding">8dp</dimen>
     <dimen name="pending_widget_elevation">2dp</dimen>
 
+<!-- Deep shortcuts -->
+    <dimen name="deep_shortcuts_elevation">9dp</dimen>
+    <dimen name="deep_shortcuts_width">180dp</dimen>
+    <dimen name="deep_shortcuts_spacing">4dp</dimen>
+    <dimen name="deep_shortcuts_drag_view_scale">6dp</dimen>
+    <!-- an icon with shortcuts must be dragged this much distance away from the nearest edge
+         of the shortcut container before the container is removed. -->
+    <dimen name="deep_shortcuts_start_drag_threshold">35dp</dimen>
+    <dimen name="deep_shortcut_icon_size">36dp</dimen>
+
 </resources>
diff --git a/res/values/styles.xml b/res/values/styles.xml
index 0bfd0a041..a1ba0b0b5 100644
--- a/res/values/styles.xml
+++ b/res/values/styles.xml
@@ -70,6 +70,21 @@
         <item name="customShadows">false</item>
     </style>
 
+    <style name="Icon.DeepShortcut">
+        <item name="android:background">@drawable/bg_white_pill</item>
+        <item name="android:gravity">start|center_vertical</item>
+        <item name="android:minWidth">@dimen/deep_shortcuts_width</item>
+        <item name="android:maxWidth">@dimen/deep_shortcuts_width</item>
+        <item name="android:elevation">@dimen/deep_shortcuts_elevation</item>
+        <item name="android:paddingLeft">7dp</item>
+        <item name="android:drawablePadding">12dp</item>
+        <item name="android:textColor">@color/quantum_panel_text_color</item>
+        <item name="android:shadowRadius">0</item>
+        <item name="customShadows">false</item>
+        <item name="layoutHorizontal">true</item>
+        <item name="iconSizeOverride">@dimen/deep_shortcut_icon_size</item>
+    </style>
+
     <!-- Drop targets -->
     <style name="DropTargetButtonBase">
         <item name="android:drawablePadding">7.5dp</item>
@@ -99,5 +114,4 @@
         <item name="indicatorSize">4dp</item>
         <item name="ringOutset">4dp</item>
     </style>
-
 </resources>