Change all apps caret target bounding box
b/30400751

1) This also fixes the issue of apps drawer sliding up when page is swiped
horizontally immediately above the hotseat area.

2) Disclaimer: this should be cp'ed to calgary.
Hence, I tried to keep the diff small. Ideally, CaretDrawable animation
handling should move to AllAppsHandleImageView via refactoring in
follow up CL.

Change-Id: I4d808ee2eeca53b40c0b4e4e0e364fef056e26c3
(cherry picked from commit 016eaeea99e163f0b5385cf660297e6c21ff21e5)
diff --git a/res/layout-port/launcher.xml b/res/layout-port/launcher.xml
index d6e2802..e304987 100644
--- a/res/layout-port/launcher.xml
+++ b/res/layout-port/launcher.xml
@@ -55,10 +55,8 @@
 
         <!-- Keep these behind the workspace so that they are not visible when
              we go into AllApps -->
-        <com.android.launcher3.pageindicators.PageIndicatorLineCaret
-            android:id="@+id/page_indicator"
-            android:layout_width="match_parent"
-            android:layout_height="@dimen/dynamic_grid_page_indicator_height" />
+        <include layout="@layout/page_indicator"
+            android:id="@+id/page_indicator" />
 
         <include
             android:id="@+id/drop_target_bar"
diff --git a/res/layout-sw720dp/launcher.xml b/res/layout-sw720dp/launcher.xml
index fef80de..50921eb 100644
--- a/res/layout-sw720dp/launcher.xml
+++ b/res/layout-sw720dp/launcher.xml
@@ -58,10 +58,8 @@
 
         <!-- Keep these behind the workspace so that they are not visible when
              we go into AllApps -->
-        <com.android.launcher3.pageindicators.PageIndicatorLineCaret
-            android:id="@+id/page_indicator"
-            android:layout_width="match_parent"
-            android:layout_height="@dimen/dynamic_grid_page_indicator_height" />
+        <include layout="@layout/page_indicator"
+                 android:id="@+id/page_indicator" />
 
         <include
             layout="@layout/qsb_container"
diff --git a/res/layout/page_indicator.xml b/res/layout/page_indicator.xml
new file mode 100644
index 0000000..2e1b57f
--- /dev/null
+++ b/res/layout/page_indicator.xml
@@ -0,0 +1,27 @@
+<?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.pageindicators.PageIndicatorLineCaret
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="@dimen/dynamic_grid_page_indicator_height">
+        <ImageView
+            android:id="@+id/all_apps_handle"
+            android:layout_width="48dp"
+            android:layout_height="match_parent"
+            android:layout_gravity="center"
+            android:scaleType="centerInside"/>
+</com.android.launcher3.pageindicators.PageIndicatorLineCaret>
diff --git a/res/values/dimens.xml b/res/values/dimens.xml
index 87ef78b..1ae4685 100644
--- a/res/values/dimens.xml
+++ b/res/values/dimens.xml
@@ -4,9 +4,9 @@
      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.
@@ -19,7 +19,6 @@
     <dimen name="dynamic_grid_edge_margin">8dp</dimen>
     <dimen name="dynamic_grid_page_indicator_height">28dp</dimen>
     <dimen name="dynamic_grid_page_indicator_line_height">1dp</dimen>
-    <dimen name="dynamic_grid_page_indicator_extra_touch_height">12dp</dimen>
     <dimen name="dynamic_grid_page_indicator_gutter_width_left_nav_bar">38dp</dimen>
     <dimen name="dynamic_grid_page_indicator_gutter_width_right_nav_bar">48dp</dimen>
     <dimen name="dynamic_grid_icon_drawable_padding">8dp</dimen>
diff --git a/src/com/android/launcher3/DeviceProfile.java b/src/com/android/launcher3/DeviceProfile.java
index e6802bd..c9fd85a 100644
--- a/src/com/android/launcher3/DeviceProfile.java
+++ b/src/com/android/launcher3/DeviceProfile.java
@@ -533,7 +533,6 @@
             } else {
                 // Put the page indicators above the hotseat
                 lp.gravity = Gravity.CENTER_HORIZONTAL | Gravity.BOTTOM;
-                lp.width = LayoutParams.WRAP_CONTENT;
                 lp.height = pageIndicatorHeightPx;
                 lp.bottomMargin = hotseatBarHeightPx + mInsets.bottom;
             }
diff --git a/src/com/android/launcher3/pageindicators/CaretDrawable.java b/src/com/android/launcher3/pageindicators/CaretDrawable.java
index 1451773..4789f69 100644
--- a/src/com/android/launcher3/pageindicators/CaretDrawable.java
+++ b/src/com/android/launcher3/pageindicators/CaretDrawable.java
@@ -37,6 +37,7 @@
     private Paint mShadowPaint = new Paint();
     private Paint mCaretPaint = new Paint();
     private Path mPath = new Path();
+    private final int mCaretSizePx;
 
     public CaretDrawable(Context context) {
         final Resources res = context.getResources();
@@ -57,6 +58,18 @@
         mShadowPaint.setStyle(Paint.Style.STROKE);
         mShadowPaint.setStrokeCap(Paint.Cap.ROUND);
         mShadowPaint.setStrokeJoin(Paint.Join.ROUND);
+
+        mCaretSizePx = res.getDimensionPixelSize(R.dimen.all_apps_caret_size);
+    }
+
+    @Override
+    public int getIntrinsicHeight() {
+        return mCaretSizePx;
+    }
+
+    @Override
+    public int getIntrinsicWidth() {
+        return mCaretSizePx;
     }
 
     @Override
diff --git a/src/com/android/launcher3/pageindicators/PageIndicator.java b/src/com/android/launcher3/pageindicators/PageIndicator.java
index b53715d..47c2ffb 100644
--- a/src/com/android/launcher3/pageindicators/PageIndicator.java
+++ b/src/com/android/launcher3/pageindicators/PageIndicator.java
@@ -18,20 +18,21 @@
 import android.content.Context;
 import android.graphics.drawable.Drawable;
 import android.util.AttributeSet;
-import android.view.View;
+import android.widget.FrameLayout;
 
 import com.android.launcher3.dynamicui.ExtractedColors;
 
 /**
  * Base class for a page indicator.
  */
-public abstract class PageIndicator extends View {
+public abstract class PageIndicator extends FrameLayout {
     private CaretDrawable mCaretDrawable;
 
     protected int mNumPages = 1;
 
     public PageIndicator(Context context, AttributeSet attrs, int defStyleAttr) {
         super(context, attrs, defStyleAttr);
+        setWillNotDraw(false);
     }
 
     public void setScroll(int currentScroll, int totalScroll) {}
diff --git a/src/com/android/launcher3/pageindicators/PageIndicatorLineCaret.java b/src/com/android/launcher3/pageindicators/PageIndicatorLineCaret.java
index 0d771ad..ca3a2dd 100644
--- a/src/com/android/launcher3/pageindicators/PageIndicatorLineCaret.java
+++ b/src/com/android/launcher3/pageindicators/PageIndicatorLineCaret.java
@@ -15,14 +15,13 @@
 import android.util.AttributeSet;
 import android.util.Log;
 import android.util.Property;
-import android.view.View;
 import android.view.ViewConfiguration;
+import android.widget.ImageView;
 
 import com.android.launcher3.Launcher;
 import com.android.launcher3.R;
 import com.android.launcher3.Utilities;
 import com.android.launcher3.dynamicui.ExtractedColors;
-import com.android.launcher3.util.TransformingTouchDelegate;
 
 /**
  * A PageIndicator that briefly shows a fraction of a line when moving between pages.
@@ -60,10 +59,7 @@
     private Paint mLinePaint;
     private Launcher mLauncher;
     private final int mLineHeight;
-    private final TransformingTouchDelegate mTouchDelegate;
-    private final int mTouchExtensionHeight;
-    private final int mCaretSizePx;
-    private final int mCaretWorkspaceOffsetPx;
+    private ImageView mAllAppsHandle;
 
     private static final Property<PageIndicatorLineCaret, Integer> PAINT_ALPHA
             = new Property<PageIndicatorLineCaret, Integer>(Integer.class, "paint_alpha") {
@@ -128,48 +124,26 @@
         Resources res = context.getResources();
         mLinePaint = new Paint();
         mLinePaint.setAlpha(0);
-        mCaretSizePx = res.getDimensionPixelSize(R.dimen.all_apps_caret_size);
-        mCaretWorkspaceOffsetPx = res.getDimensionPixelSize(
-                R.dimen.all_apps_caret_workspace_offset);
 
         mLauncher = (Launcher) context;
-        setOnTouchListener(mLauncher.getHapticFeedbackTouchListener());
-        setOnClickListener(mLauncher);
-        setOnLongClickListener(mLauncher);
-        setOnFocusChangeListener(mLauncher.mFocusHandler);
-        setCaretDrawable(new CaretDrawable(context));
         mLineHeight = res.getDimensionPixelSize(R.dimen.dynamic_grid_page_indicator_line_height);
-        mTouchExtensionHeight = res.getDimensionPixelSize(
-                R.dimen.dynamic_grid_page_indicator_extra_touch_height);
-        mTouchDelegate = new TransformingTouchDelegate(this);
+        setCaretDrawable(new CaretDrawable(context));
     }
 
     @Override
-    protected void onAttachedToWindow() {
-        super.onAttachedToWindow();
-        mLauncher.getDragLayer().setTouchDelegate(mTouchDelegate);
-    }
-
-    @Override
-    protected void onLayout(boolean changed, int left, int top, int right, int bottom) {
-        super.onLayout(changed, left, top, right, bottom);
-        // Top/center align the caret in the page indicator space
-        int l = (right - left) / 2 - mCaretSizePx / 2;
-        getCaretDrawable().setBounds(l, mCaretWorkspaceOffsetPx, l + mCaretSizePx,
-                mCaretWorkspaceOffsetPx + mCaretSizePx);
-
-        // The touch area is expanded below this view by #mTouchExtensionHeight
-        // which extends to the top of the hotseat.
-        View parent = mLauncher.getDragLayer();
-        sTempCoords[0] = sTempCoords[1] = 0;
-        Utilities.getDescendantCoordRelativeToAncestor(this, parent, sTempCoords, true);
-        mTouchDelegate.setBounds(sTempCoords[0], sTempCoords[1], sTempCoords[0] + this.getWidth(),
-                sTempCoords[1] + getHeight() + mTouchExtensionHeight);
+    protected void onFinishInflate() {
+        super.onFinishInflate();
+        mAllAppsHandle = (ImageView) findViewById(R.id.all_apps_handle);
+        mAllAppsHandle.setImageDrawable(getCaretDrawable());
+        mAllAppsHandle.setOnTouchListener(mLauncher.getHapticFeedbackTouchListener());
+        mAllAppsHandle.setOnClickListener(mLauncher);
+        mAllAppsHandle.setOnLongClickListener(mLauncher);
+        mAllAppsHandle.setOnFocusChangeListener(mLauncher.mFocusHandler);
+        mLauncher.setAllAppsButton(mAllAppsHandle);
     }
 
     @Override
     protected void onDraw(Canvas canvas) {
-        getCaretDrawable().draw(canvas);
         if (mTotalScroll == 0 || mNumPagesFloat == 0) {
             return;
         }