Added AppInfoDropTargetBar to spring loaded workspace.

Change-Id: Ieedc68eba9a5934ab30d6d546d8a837274491064
diff --git a/res/layout-land/launcher.xml b/res/layout-land/launcher.xml
index f431fb1..951a30e 100644
--- a/res/layout-land/launcher.xml
+++ b/res/layout-land/launcher.xml
@@ -50,6 +50,10 @@
             android:layout_gravity="right" />
 
         <include
+            android:id="@+id/app_info_drop_target_bar"
+            layout="@layout/app_info_drop_target_bar" />
+
+        <include
             android:id="@+id/search_drop_target_bar"
             layout="@layout/search_drop_target_bar" />
 
diff --git a/res/layout-port/launcher.xml b/res/layout-port/launcher.xml
index a7f851e..4cb34e9 100644
--- a/res/layout-port/launcher.xml
+++ b/res/layout-port/launcher.xml
@@ -64,6 +64,10 @@
             android:layout_gravity="center_horizontal" />
 
         <include
+            android:id="@+id/app_info_drop_target_bar"
+            layout="@layout/app_info_drop_target_bar" />
+
+        <include
             android:id="@+id/search_drop_target_bar"
             layout="@layout/search_drop_target_bar" />
 
diff --git a/res/layout-sw720dp/launcher.xml b/res/layout-sw720dp/launcher.xml
index 319a493..3228999 100644
--- a/res/layout-sw720dp/launcher.xml
+++ b/res/layout-sw720dp/launcher.xml
@@ -50,6 +50,10 @@
             android:layout_height="match_parent" />
 
         <include
+            android:id="@+id/app_info_drop_target_bar"
+            layout="@layout/app_info_drop_target_bar" />
+
+        <include
             android:id="@+id/search_drop_target_bar"
             layout="@layout/search_drop_target_bar" />
 
diff --git a/res/layout/app_info_drop_target_bar.xml b/res/layout/app_info_drop_target_bar.xml
new file mode 100644
index 0000000..b8f30d0
--- /dev/null
+++ b/res/layout/app_info_drop_target_bar.xml
@@ -0,0 +1,42 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+     Copyright (C) 2011 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.AppInfoDropTargetBar xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:focusable="false" >
+
+    <!-- Drag specific targets container -->
+    <LinearLayout
+        android:id="@+id/drag_target_bar"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        android:layout_gravity="center|bottom" >
+
+        <FrameLayout
+            style="@style/DropTargetButtonContainer"
+            android:layout_weight="1" >
+
+            <!-- Info target -->
+
+            <com.android.launcher3.InfoDropTarget
+                android:id="@+id/info_target_text"
+                style="@style/DropTargetButton"
+                android:text="@string/info_target_label" />
+        </FrameLayout>
+    </LinearLayout>
+
+</com.android.launcher3.AppInfoDropTargetBar>
\ No newline at end of file
diff --git a/res/layout/search_drop_target_bar.xml b/res/layout/search_drop_target_bar.xml
index 4737ee1..724eb94 100644
--- a/res/layout/search_drop_target_bar.xml
+++ b/res/layout/search_drop_target_bar.xml
@@ -43,18 +43,6 @@
             style="@style/DropTargetButtonContainer"
             android:layout_weight="1" >
 
-            <!-- Info target -->
-
-            <com.android.launcher3.InfoDropTarget
-                android:id="@+id/info_target_text"
-                style="@style/DropTargetButton"
-                android:text="@string/info_target_label" />
-        </FrameLayout>
-
-        <FrameLayout
-            style="@style/DropTargetButtonContainer"
-            android:layout_weight="1" >
-
             <!-- Uninstall target -->
 
             <com.android.launcher3.UninstallDropTarget
diff --git a/src/com/android/launcher3/AppInfoDropTargetBar.java b/src/com/android/launcher3/AppInfoDropTargetBar.java
new file mode 100644
index 0000000..31ff42a
--- /dev/null
+++ b/src/com/android/launcher3/AppInfoDropTargetBar.java
@@ -0,0 +1,74 @@
+/*
+ * Copyright (C) 2011 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;
+
+import android.content.Context;
+import android.util.AttributeSet;
+
+import com.android.launcher3.dragndrop.DragController;
+
+public class AppInfoDropTargetBar extends BaseDropTargetBar {
+    private ButtonDropTarget mAppInfoDropTarget;
+
+    public AppInfoDropTargetBar(Context context, AttributeSet attrs) {
+        this(context, attrs, 0);
+    }
+
+    public AppInfoDropTargetBar(Context context, AttributeSet attrs, int defStyle) {
+        super(context, attrs, defStyle);
+    }
+
+    @Override
+    protected void onFinishInflate() {
+        super.onFinishInflate();
+
+        // Get the individual components
+        mAppInfoDropTarget = (ButtonDropTarget) mDropTargetBar.findViewById(R.id.info_target_text);
+
+        mAppInfoDropTarget.setDropTargetBar(this);
+    }
+
+    @Override
+    public void setup(Launcher launcher, DragController dragController) {
+        dragController.addDragListener(this);
+
+        dragController.addDragListener(mAppInfoDropTarget);
+
+        dragController.addDropTarget(mAppInfoDropTarget);
+
+        mAppInfoDropTarget.setLauncher(launcher);
+    }
+
+    @Override
+    public void showDropTarget() {
+        animateDropTargetBarToAlpha(1f, DEFAULT_DRAG_FADE_DURATION);
+    }
+
+    @Override
+    public void hideDropTarget() {
+        animateDropTargetBarToAlpha(0f, DEFAULT_DRAG_FADE_DURATION);
+    }
+
+    private void animateDropTargetBarToAlpha(float alpha, int duration) {
+        animateViewAlpha(mDropTargetBarAnimator, mDropTargetBar, alpha,duration);
+    }
+
+    @Override
+    public void enableAccessibleDrag(boolean enable) {
+        mAppInfoDropTarget.enableAccessibleDrag(enable);
+    }
+}
diff --git a/src/com/android/launcher3/DeviceProfile.java b/src/com/android/launcher3/DeviceProfile.java
index 6364d90..66cf2df 100644
--- a/src/com/android/launcher3/DeviceProfile.java
+++ b/src/com/android/launcher3/DeviceProfile.java
@@ -397,29 +397,15 @@
 
         // Layout the search bar space
         View searchBar = launcher.getSearchDropTargetBar();
-        lp = (FrameLayout.LayoutParams) searchBar.getLayoutParams();
-        if (hasVerticalBarLayout) {
-            // Vertical search bar space -- The search bar is fixed in the layout to be on the left
-            //                              of the screen regardless of RTL
-            lp.gravity = Gravity.LEFT;
-            lp.width = searchBarSpaceHeightPx;
-
-            LinearLayout targets = (LinearLayout) searchBar.findViewById(R.id.drag_target_bar);
-            targets.setOrientation(LinearLayout.VERTICAL);
-            FrameLayout.LayoutParams targetsLp = (FrameLayout.LayoutParams) targets.getLayoutParams();
-            targetsLp.gravity = Gravity.TOP;
-            targetsLp.height = LayoutParams.WRAP_CONTENT;
-
-        } else {
-            // Horizontal search bar space
-            lp.gravity = Gravity.TOP;
-            lp.height = searchBarSpaceHeightPx;
-
-            LinearLayout targets = (LinearLayout) searchBar.findViewById(R.id.drag_target_bar);
-            targets.getLayoutParams().width = searchBarSpaceWidthPx;
-        }
+        lp = getDropTargetBarLayoutParams(hasVerticalBarLayout, searchBar, Gravity.TOP);
         searchBar.setLayoutParams(lp);
 
+        // Layout the app info bar space
+        View appInfoBar = launcher.getAppInfoDropTargetBar();
+        lp = getDropTargetBarLayoutParams(hasVerticalBarLayout, appInfoBar, Gravity.BOTTOM);
+        lp.bottomMargin = hotseatBarHeightPx;
+        appInfoBar.setLayoutParams(lp);
+
         // Layout the workspace
         PagedView workspace = (PagedView) launcher.findViewById(R.id.workspace);
         lp = (FrameLayout.LayoutParams) workspace.getLayoutParams();
@@ -478,7 +464,6 @@
         // Layout the Overview Mode
         ViewGroup overviewMode = launcher.getOverviewPanel();
         if (overviewMode != null) {
-            int overviewButtonBarHeight = getOverviewModeButtonBarHeight();
             lp = (FrameLayout.LayoutParams) overviewMode.getLayoutParams();
             lp.gravity = Gravity.CENTER_HORIZONTAL | Gravity.BOTTOM;
 
@@ -487,7 +472,7 @@
             int maxWidth = totalItemWidth + (visibleChildCount-1) * overviewModeBarSpacerWidthPx;
 
             lp.width = Math.min(availableWidthPx, maxWidth);
-            lp.height = overviewButtonBarHeight;
+            lp.height = getOverviewModeButtonBarHeight();
             overviewMode.setLayoutParams(lp);
 
             if (lp.width > totalItemWidth && visibleChildCount > 1) {
@@ -516,6 +501,31 @@
         }
     }
 
+    private FrameLayout.LayoutParams getDropTargetBarLayoutParams(boolean hasVerticalBarLayout,
+            View dropTargetBar, int verticalGravity) {
+        FrameLayout.LayoutParams lp = (FrameLayout.LayoutParams) dropTargetBar.getLayoutParams();
+        if (hasVerticalBarLayout) {
+            // Vertical drop target bar space -- The drop target bar is fixed in the layout to be on
+            //                                   the left of the screen regardless of RTL
+            lp.gravity = Gravity.LEFT;
+            lp.width = searchBarSpaceHeightPx;
+
+            LinearLayout targets = (LinearLayout) dropTargetBar.findViewById(R.id.drag_target_bar);
+            targets.setOrientation(LinearLayout.VERTICAL);
+            FrameLayout.LayoutParams targetsLp = (FrameLayout.LayoutParams) targets.getLayoutParams();
+            targetsLp.gravity = verticalGravity;
+            targetsLp.height = LayoutParams.WRAP_CONTENT;
+        } else {
+            // Horizontal drop target bar space
+            lp.gravity = verticalGravity;
+            lp.height = searchBarSpaceHeightPx;
+
+            LinearLayout targets = (LinearLayout) dropTargetBar.findViewById(R.id.drag_target_bar);
+            targets.getLayoutParams().width = searchBarSpaceWidthPx;
+        }
+        return lp;
+    }
+
     private int getCurrentWidth() {
         return isLandscape
                 ? Math.max(widthPx, heightPx)
diff --git a/src/com/android/launcher3/Folder.java b/src/com/android/launcher3/Folder.java
index e85fce6..ff21be2 100644
--- a/src/com/android/launcher3/Folder.java
+++ b/src/com/android/launcher3/Folder.java
@@ -906,7 +906,7 @@
 
     @Override
     public boolean supportsAppInfoDropTarget() {
-        return false;
+        return true;
     }
 
     @Override
diff --git a/src/com/android/launcher3/InfoDropTarget.java b/src/com/android/launcher3/InfoDropTarget.java
index b4a1445..f5b7c56 100644
--- a/src/com/android/launcher3/InfoDropTarget.java
+++ b/src/com/android/launcher3/InfoDropTarget.java
@@ -59,7 +59,8 @@
     }
 
     public static boolean supportsDrop(Context context, ItemInfo info) {
-        return info instanceof AppInfo || info instanceof PendingAddItemInfo;
+        return info instanceof AppInfo || info instanceof ShortcutInfo
+                || info instanceof PendingAddItemInfo;
     }
 
     @Override
diff --git a/src/com/android/launcher3/Launcher.java b/src/com/android/launcher3/Launcher.java
index 70a30c2..35d08ba 100644
--- a/src/com/android/launcher3/Launcher.java
+++ b/src/com/android/launcher3/Launcher.java
@@ -247,6 +247,7 @@
     private View mWidgetsButton;
 
     private SearchDropTargetBar mSearchDropTargetBar;
+    private AppInfoDropTargetBar mAppInfoDropTargetBar;
 
     // Main container view for the all apps screen.
     @Thunk AllAppsContainerView mAppsView;
@@ -1366,9 +1367,12 @@
         mWorkspace.setup(dragController);
         dragController.addDragListener(mWorkspace);
 
-        // Get the search/delete bar
+        // Get the search/delete/uninstall bar
         mSearchDropTargetBar = (SearchDropTargetBar)
                 mDragLayer.findViewById(R.id.search_drop_target_bar);
+        // Get the app info bar
+        mAppInfoDropTargetBar = (AppInfoDropTargetBar)
+                mDragLayer.findViewById(R.id.app_info_drop_target_bar);
 
         // Setup Apps and Widgets
         mAppsView = (AllAppsContainerView) findViewById(R.id.apps_view);
@@ -1387,6 +1391,9 @@
             mSearchDropTargetBar.setup(this, dragController);
             mSearchDropTargetBar.setQsbSearchBar(getOrCreateQsbBar());
         }
+        if (mAppInfoDropTargetBar != null) {
+            mAppInfoDropTargetBar.setup(this, dragController);
+        }
 
         if (getResources().getBoolean(R.bool.debug_memory_enabled)) {
             Log.v(TAG, "adding WeightWatcher");
@@ -1773,6 +1780,10 @@
         return mSearchDropTargetBar;
     }
 
+    public AppInfoDropTargetBar getAppInfoDropTargetBar() {
+        return mAppInfoDropTargetBar;
+    }
+
     public LauncherAppWidgetHost getAppWidgetHost() {
         return mAppWidgetHost;
     }
diff --git a/src/com/android/launcher3/Workspace.java b/src/com/android/launcher3/Workspace.java
index c5d323b..0fe37de 100644
--- a/src/com/android/launcher3/Workspace.java
+++ b/src/com/android/launcher3/Workspace.java
@@ -1589,6 +1589,7 @@
             setOnClickListener(mLauncher);
         }
         mLauncher.getSearchDropTargetBar().enableAccessibleDrag(enable);
+        mLauncher.getAppInfoDropTargetBar().enableAccessibleDrag(enable);
         mLauncher.getHotseat().getLayout()
             .enableAccessibleDrag(enable, CellLayout.WORKSPACE_ACCESSIBILITY_DRAG);
     }
@@ -2013,6 +2014,10 @@
         return -workspaceOffsetTopEdge + overviewOffsetTopEdge;
     }
 
+    int getSpringLoadedTranslationY() {
+        return getOverviewModeTranslationY();
+    }
+
     /**
      * Sets the current workspace {@link State}, returning an animation transitioning the workspace
      * to that new state.
@@ -3825,7 +3830,7 @@
 
     @Override
     public boolean supportsAppInfoDropTarget() {
-        return false;
+        return true;
     }
 
     @Override
diff --git a/src/com/android/launcher3/WorkspaceStateTransitionAnimation.java b/src/com/android/launcher3/WorkspaceStateTransitionAnimation.java
index 011f4a2..d32ce73 100644
--- a/src/com/android/launcher3/WorkspaceStateTransitionAnimation.java
+++ b/src/com/android/launcher3/WorkspaceStateTransitionAnimation.java
@@ -285,8 +285,13 @@
         float finalHotseatAndPageIndicatorAlpha = (states.stateIsNormal || states.stateIsSpringLoaded) ?
                 1f : 0f;
         float finalOverviewPanelAlpha = states.stateIsOverview ? 1f : 0f;
-        float finalWorkspaceTranslationY = states.stateIsOverview || states.stateIsOverviewHidden ?
-                mWorkspace.getOverviewModeTranslationY() : 0;
+
+        float finalWorkspaceTranslationY = 0;
+        if (states.stateIsOverview || states.stateIsOverviewHidden) {
+            finalWorkspaceTranslationY = mWorkspace.getOverviewModeTranslationY();
+        } else if (states.stateIsSpringLoaded) {
+            finalWorkspaceTranslationY = mWorkspace.getSpringLoadedTranslationY();
+        }
 
         final int childCount = mWorkspace.getChildCount();
         final int customPageCount = mWorkspace.numCustomPages();
diff --git a/src/com/android/launcher3/dragndrop/DragLayer.java b/src/com/android/launcher3/dragndrop/DragLayer.java
index 6b6bef4..adcc12c 100644
--- a/src/com/android/launcher3/dragndrop/DragLayer.java
+++ b/src/com/android/launcher3/dragndrop/DragLayer.java
@@ -165,6 +165,11 @@
         if (mHitRect.contains((int) ev.getX(), (int) ev.getY())) {
             return true;
         }
+
+        getDescendantRectRelativeToSelf(mLauncher.getAppInfoDropTargetBar(), mHitRect);
+        if (mHitRect.contains((int) ev.getX(), (int) ev.getY())) {
+            return true;
+        }
         return false;
     }
 
@@ -324,6 +329,7 @@
 
             if (isInAccessibleDrag()) {
                 childrenForAccessibility.add(mLauncher.getSearchDropTargetBar());
+                childrenForAccessibility.add(mLauncher.getAppInfoDropTargetBar());
             }
         } else {
             super.addChildrenForAccessibility(childrenForAccessibility);