Add colorEdgeEffect to themes, default it to colorPrimary

Allow edgeeffect colors to be changed independently of the primary
color for the current theme.

Bug 16512225

Change-Id: Ibc13ad755f489fe1f6d16af0c61a1d12dd1a61f7

api/current.txt

@@ -409,6 +409,7 @@ package android {
     field public static final int colorControlActivated = 16843818; // 0x101042a
     field public static final int colorControlHighlight = 16843820; // 0x101042c
     field public static final int colorControlNormal = 16843817; // 0x1010429
+    field public static final int colorEdgeEffect = 16843982; // 0x10104ce
     field public static final int colorFocusedHighlight = 16843663; // 0x101038f
     field public static final int colorForeground = 16842800; // 0x1010030
     field public static final int colorForegroundInverse = 16843270; // 0x1010206

core/java/android/widget/EdgeEffect.java

@@ -120,7 +120,7 @@ public class EdgeEffect {
         final TypedArray a = context.obtainStyledAttributes(
                 com.android.internal.R.styleable.EdgeEffect);
         final int themeColor = a.getColor(
-                com.android.internal.R.styleable.EdgeEffect_colorPrimary, 0xff666666);
+                com.android.internal.R.styleable.EdgeEffect_colorEdgeEffect, 0xff666666);
         a.recycle();
         mPaint.setColor((themeColor & 0xffffff) | 0x33000000);
         mPaint.setStyle(Paint.Style.FILL);

core/res/res/values/attrs.xml

@@ -1020,6 +1020,9 @@
         <!-- The color applied to framework switch thumbs in their normal state. -->
         <attr name="colorSwitchThumbNormal" format="color" />
 
+        <!-- The color applied to the edge effect on scrolling containers. -->
+        <attr name="colorEdgeEffect" format="color" />
+
         <!-- =================== -->
         <!-- Lighting properties -->
         <!-- =================== -->
@@ -7435,7 +7438,7 @@
 
     <!-- Used as a filter array on the theme to pull out only the EdgeEffect-relevant bits. -->
     <declare-styleable name="EdgeEffect">
-        <attr name="colorPrimary" />
+        <attr name="colorEdgeEffect" />
     </declare-styleable>
 
     <!-- Use <code>tv-input</code> as the root tag of the XML resource that describes a

core/res/res/values/public.xml

@@ -2291,6 +2291,7 @@
     <public type="attr" name="strokeAlpha" id="0x010104cb" />
     <public type="attr" name="fillAlpha" id="0x010104cc" />
     <public type="attr" name="windowActivityTransitions" id="0x010104cd" />
+    <public type="attr" name="colorEdgeEffect" id="0x010104ce" />
 
     <public type="id" name="mask" id="0x0102002e" />
     <public type="id" name="statusBarBackground" id="0x0102002f" />

core/res/res/values/themes.xml

@@ -59,6 +59,7 @@ please see themes_device_defaults.xml.
         <item name="colorControlNormal">@color/legacy_control_normal</item>
         <item name="colorControlHighlight">@color/legacy_button_pressed</item>
         <item name="colorButtonNormal">@color/legacy_button_normal</item>
+        <item name="colorEdgeEffect">?attr/colorPrimary</item>
 
         <item name="disabledAlpha">0.5</item>
         <item name="backgroundDimAmount">0.6</item>

core/res/res/values/themes_holo.xml

@@ -81,6 +81,7 @@ please see themes_device_defaults.xml.
         <item name="colorControlNormal">@color/holo_control_normal</item>
         <item name="colorControlHighlight">@color/holo_button_pressed</item>
         <item name="colorButtonNormal">@color/holo_button_normal</item>
+        <item name="colorEdgeEffect">?attr/colorPrimary</item>
 
         <!-- Text styles -->
         <item name="textAppearance">@style/TextAppearance.Holo</item>

core/res/res/values/themes_material.xml

@@ -375,6 +375,7 @@ please see themes_device_defaults.xml.
         <item name="colorPrimaryDark">@color/material_blue_grey_900</item>
         <item name="colorPrimary">@color/material_blue_grey_800</item>
         <item name="colorAccent">@color/material_deep_teal_200</item>
+        <item name="colorEdgeEffect">?attr/colorPrimary</item>
 
         <item name="colorControlNormal">?attr/textColorSecondary</item>
         <item name="colorControlActivated">?attr/colorAccent</item>