From f976c3d42bc2f14333bae5ed26d96c45d207a443 Mon Sep 17 00:00:00 2001
From: George Mount <mount@google.com>
Date: Tue, 15 Apr 2014 09:01:32 -0700
Subject: Add ability to exclude Views in transition XML.

Bug 14259955

Change-Id: I47bb10c530c9fec8910ddd96156fc38d6027e1f6
---
 api/current.txt                                    |  2 ++
 core/java/android/transition/Transition.java       |  3 ++-
 .../android/transition/TransitionInflater.java     | 26 +++++++++++++++-------
 core/res/res/values/attrs.xml                      |  4 ++++
 core/res/res/values/public.xml                     |  2 ++
 5 files changed, 28 insertions(+), 9 deletions(-)

diff --git a/api/current.txt b/api/current.txt
index 47791242eb91..b81c83347b7e 100644
--- a/api/current.txt
+++ b/api/current.txt
@@ -501,7 +501,9 @@ package android {
     field public static final int entries = 16842930; // 0x10100b2
     field public static final int entryValues = 16843256; // 0x10101f8
     field public static final int eventsInterceptionEnabled = 16843389; // 0x101027d
+    field public static final int excludeClass = 16843854; // 0x101044e
     field public static final int excludeFromRecents = 16842775; // 0x1010017
+    field public static final int excludeId = 16843853; // 0x101044d
     field public static final int exitFadeDuration = 16843533; // 0x101030d
     field public static final int expandableListPreferredChildIndicatorLeft = 16842834; // 0x1010052
     field public static final int expandableListPreferredChildIndicatorRight = 16842835; // 0x1010053
diff --git a/core/java/android/transition/Transition.java b/core/java/android/transition/Transition.java
index c67d6fa9cbd4..d8392f5812c0 100644
--- a/core/java/android/transition/Transition.java
+++ b/core/java/android/transition/Transition.java
@@ -89,7 +89,8 @@ import java.util.List;
  * transition uses a fadingMode of {@link Fade#OUT} instead of the default
  * out-in behavior. Finally, note the use of the <code>targets</code> sub-tag, which
  * takes a set of {@link android.R.styleable#TransitionTarget target} tags, each
- * of which lists a specific <code>targetId</code> which this transition acts upon.
+ * of which lists a specific <code>targetId</code>, <code>excludeId</code>, or
+ * <code>excludeClass</code>, which this transition acts upon.
  * Use of targets is optional, but can be used to either limit the time spent checking
  * attributes on unchanging views, or limiting the types of animations run on specific views.
  * In this case, we know that only the <code>grayscaleContainer</code> will be
diff --git a/core/java/android/transition/TransitionInflater.java b/core/java/android/transition/TransitionInflater.java
index 14ecc1532581..1aa412a3c4d8 100644
--- a/core/java/android/transition/TransitionInflater.java
+++ b/core/java/android/transition/TransitionInflater.java
@@ -210,7 +210,6 @@ public class TransitionInflater {
         int type;
         int depth = parser.getDepth();
 
-        ArrayList<Integer> targetIds = new ArrayList<Integer>();
         while (((type=parser.next()) != XmlPullParser.END_TAG || parser.getDepth() > depth)
                 && type != XmlPullParser.END_DOCUMENT) {
 
@@ -225,18 +224,29 @@ public class TransitionInflater {
                 int id = a.getResourceId(
                         com.android.internal.R.styleable.TransitionTarget_targetId, -1);
                 if (id >= 0) {
-                    targetIds.add(id);
+                    transition.addTarget(id);
+                } else {
+                    id = a.getResourceId(
+                            com.android.internal.R.styleable.TransitionTarget_excludeId, -1);
+                    if (id >= 0) {
+                        transition.excludeTarget(id, true);
+                    } else {
+                        String className = a.getString(
+                                com.android.internal.R.styleable.TransitionTarget_excludeClass);
+                        if (className != null) {
+                            try {
+                                Class clazz = Class.forName(className);
+                                transition.excludeTarget(clazz, true);
+                            } catch (ClassNotFoundException e) {
+                                throw new RuntimeException("Could not create " + className, e);
+                            }
+                        }
+                    }
                 }
             } else {
                 throw new RuntimeException("Unknown scene name: " + parser.getName());
             }
         }
-        int numTargets = targetIds.size();
-        if (numTargets > 0) {
-            for (int i = 0; i < numTargets; ++i) {
-                transition.addTarget(targetIds.get(i));
-            }
-        }
     }
 
     private Transition loadTransition(Transition transition, AttributeSet attrs)
diff --git a/core/res/res/values/attrs.xml b/core/res/res/values/attrs.xml
index abac60e17978..e35239fa43fd 100644
--- a/core/res/res/values/attrs.xml
+++ b/core/res/res/values/attrs.xml
@@ -5025,6 +5025,10 @@
     <declare-styleable name="TransitionTarget">
         <!-- The id of a target on which this transition will animate changes. -->
         <attr name="targetId" format="reference" />
+        <!-- The id of a target to exclude from this transition. -->
+        <attr name="excludeId" format="reference" />
+        <!-- The fully-qualified name of the Class to exclude from this transition. -->
+        <attr name="excludeClass" format="string" />
     </declare-styleable>
 
     <!-- Use <code>set</code> as the root tag of the XML resource that
diff --git a/core/res/res/values/public.xml b/core/res/res/values/public.xml
index 85ef004123ae..c7f446bc8a7c 100644
--- a/core/res/res/values/public.xml
+++ b/core/res/res/values/public.xml
@@ -2164,6 +2164,8 @@
   <public type="attr" name="sessionService" />
   <public type="attr" name="switchStyle" />
   <public type="attr" name="elevation" />
+  <public type="attr" name="excludeId" />
+  <public type="attr" name="excludeClass" />
 
   <public-padding type="dimen" name="l_resource_pad" end="0x01050010" />
 
-- 
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