Merge "Fix issue #22013372: Assist should take translationX and friends..." into mnc-dev

9 files changed, 404 insertions, 113 deletions

diff --git a/api/current.txt b/api/current.txt
index 3cd3ee2..2d51b97 100644
--- a/api/current.txt
+++ b/api/current.txt
@@ -5832,10 +5832,12 @@ package android.app.assist {
   }
 
   public static class AssistStructure.ViewNode {
+    method public float getAlpha();
     method public android.app.assist.AssistStructure.ViewNode getChildAt(int);
     method public int getChildCount();
     method public java.lang.String getClassName();
     method public java.lang.CharSequence getContentDescription();
+    method public float getElevation();
     method public android.os.Bundle getExtras();
     method public int getHeight();
     method public java.lang.String getHint();
@@ -5854,6 +5856,7 @@ package android.app.assist {
     method public float getTextSize();
     method public int getTextStyle();
     method public int getTop();
+    method public android.graphics.Matrix getTransformation();
     method public int getVisibility();
     method public int getWidth();
     method public boolean isAccessibilityFocused();
@@ -36948,6 +36951,7 @@ package android.view {
     method public abstract android.view.ViewStructure newChild(int);
     method public abstract void setAccessibilityFocused(boolean);
     method public abstract void setActivated(boolean);
+    method public abstract void setAlpha(float);
     method public abstract void setCheckable(boolean);
     method public abstract void setChecked(boolean);
     method public abstract void setChildCount(int);
@@ -36956,6 +36960,7 @@ package android.view {
     method public abstract void setContentDescription(java.lang.CharSequence);
     method public abstract void setContextClickable(boolean);
     method public abstract void setDimens(int, int, int, int, int, int);
+    method public abstract void setElevation(float);
     method public abstract void setEnabled(boolean);
     method public abstract void setFocusable(boolean);
     method public abstract void setFocused(boolean);
@@ -36966,6 +36971,7 @@ package android.view {
     method public abstract void setText(java.lang.CharSequence);
     method public abstract void setText(java.lang.CharSequence, int, int);
     method public abstract void setTextStyle(float, int, int, int);
+    method public abstract void setTransformation(android.graphics.Matrix);
     method public abstract void setVisibility(int);
   }
 
diff --git a/api/system-current.txt b/api/system-current.txt
index 574f0c8..33c7a1b 100644
--- a/api/system-current.txt
+++ b/api/system-current.txt
@@ -5964,10 +5964,12 @@ package android.app.assist {
   }
 
   public static class AssistStructure.ViewNode {
+    method public float getAlpha();
     method public android.app.assist.AssistStructure.ViewNode getChildAt(int);
     method public int getChildCount();
     method public java.lang.String getClassName();
     method public java.lang.CharSequence getContentDescription();
+    method public float getElevation();
     method public android.os.Bundle getExtras();
     method public int getHeight();
     method public java.lang.String getHint();
@@ -5986,6 +5988,7 @@ package android.app.assist {
     method public float getTextSize();
     method public int getTextStyle();
     method public int getTop();
+    method public android.graphics.Matrix getTransformation();
     method public int getVisibility();
     method public int getWidth();
     method public boolean isAccessibilityFocused();
@@ -39243,6 +39246,7 @@ package android.view {
     method public abstract android.view.ViewStructure newChild(int);
     method public abstract void setAccessibilityFocused(boolean);
     method public abstract void setActivated(boolean);
+    method public abstract void setAlpha(float);
     method public abstract void setCheckable(boolean);
     method public abstract void setChecked(boolean);
     method public abstract void setChildCount(int);
@@ -39251,6 +39255,7 @@ package android.view {
     method public abstract void setContentDescription(java.lang.CharSequence);
     method public abstract void setContextClickable(boolean);
     method public abstract void setDimens(int, int, int, int, int, int);
+    method public abstract void setElevation(float);
     method public abstract void setEnabled(boolean);
     method public abstract void setFocusable(boolean);
     method public abstract void setFocused(boolean);
@@ -39261,6 +39266,7 @@ package android.view {
     method public abstract void setText(java.lang.CharSequence);
     method public abstract void setText(java.lang.CharSequence, int, int);
     method public abstract void setTextStyle(float, int, int, int);
+    method public abstract void setTransformation(android.graphics.Matrix);
     method public abstract void setVisibility(int);
   }
 
diff --git a/core/java/android/app/assist/AssistStructure.java b/core/java/android/app/assist/AssistStructure.java
index 284dfd6..3429b6e 100644
--- a/core/java/android/app/assist/AssistStructure.java
+++ b/core/java/android/app/assist/AssistStructure.java
@@ -2,6 +2,7 @@ package android.app.assist;
 
 import android.app.Activity;
 import android.content.ComponentName;
+import android.graphics.Matrix;
 import android.graphics.Rect;
 import android.os.Binder;
 import android.os.Bundle;
@@ -128,24 +129,24 @@ public class AssistStructure implements Parcelable {
             view.dispatchProvideStructure(builder);
         }
 
-        WindowNode(Parcel in, PooledStringReader preader) {
+        WindowNode(Parcel in, PooledStringReader preader, float[] tmpMatrix) {
             mX = in.readInt();
             mY = in.readInt();
             mWidth = in.readInt();
             mHeight = in.readInt();
             mTitle = TextUtils.CHAR_SEQUENCE_CREATOR.createFromParcel(in);
             mDisplayId = in.readInt();
-            mRoot = new ViewNode(in, preader);
+            mRoot = new ViewNode(in, preader, tmpMatrix);
         }
 
-        void writeToParcel(Parcel out, PooledStringWriter pwriter) {
+        int writeToParcel(Parcel out, PooledStringWriter pwriter, float[] tmpMatrix) {
             out.writeInt(mX);
             out.writeInt(mY);
             out.writeInt(mWidth);
             out.writeInt(mHeight);
             TextUtils.writeToParcel(mTitle, out, 0);
             out.writeInt(mDisplayId);
-            mRoot.writeToParcel(out, pwriter);
+            return mRoot.writeToParcel(out, pwriter, tmpMatrix);
         }
 
         /**
@@ -216,7 +217,7 @@ public class AssistStructure implements Parcelable {
         public static final int TEXT_STYLE_UNDERLINE = 1<<2;
         public static final int TEXT_STYLE_STRIKE_THRU = 1<<3;
 
-        int mId;
+        int mId = View.NO_ID;
         String mIdPackage;
         String mIdType;
         String mIdEntry;
@@ -226,20 +227,35 @@ public class AssistStructure implements Parcelable {
         int mScrollY;
         int mWidth;
         int mHeight;
+        Matrix mMatrix;
+        float mElevation;
+        float mAlpha = 1.0f;
 
         static final int FLAGS_DISABLED = 0x00000001;
         static final int FLAGS_VISIBILITY_MASK = View.VISIBLE|View.INVISIBLE|View.GONE;
         static final int FLAGS_FOCUSABLE = 0x00000010;
         static final int FLAGS_FOCUSED = 0x00000020;
-        static final int FLAGS_ACCESSIBILITY_FOCUSED = 0x04000000;
         static final int FLAGS_SELECTED = 0x00000040;
         static final int FLAGS_ASSIST_BLOCKED = 0x00000080;
-        static final int FLAGS_ACTIVATED = 0x40000000;
         static final int FLAGS_CHECKABLE = 0x00000100;
         static final int FLAGS_CHECKED = 0x00000200;
-        static final int FLAGS_CLICKABLE = 0x00004000;
-        static final int FLAGS_LONG_CLICKABLE = 0x00200000;
-        static final int FLAGS_CONTEXT_CLICKABLE = 0x00400000;
+        static final int FLAGS_CLICKABLE = 0x00000400;
+        static final int FLAGS_LONG_CLICKABLE = 0x00000800;
+        static final int FLAGS_ACCESSIBILITY_FOCUSED = 0x00001000;
+        static final int FLAGS_ACTIVATED = 0x00002000;
+        static final int FLAGS_CONTEXT_CLICKABLE = 0x00004000;
+
+        static final int FLAGS_HAS_MATRIX = 0x40000000;
+        static final int FLAGS_HAS_ALPHA = 0x20000000;
+        static final int FLAGS_HAS_ELEVATION = 0x10000000;
+        static final int FLAGS_HAS_SCROLL = 0x08000000;
+        static final int FLAGS_HAS_LARGE_COORDS = 0x04000000;
+        static final int FLAGS_HAS_CONTENT_DESCRIPTION = 0x02000000;
+        static final int FLAGS_HAS_TEXT = 0x01000000;
+        static final int FLAGS_HAS_EXTRAS = 0x00800000;
+        static final int FLAGS_HAS_ID = 0x00400000;
+        static final int FLAGS_HAS_CHILDREN = 0x00200000;
+        static final int FLAGS_ALL_CONTROL = 0xfff00000;
 
         int mFlags;
 
@@ -254,79 +270,153 @@ public class AssistStructure implements Parcelable {
         ViewNode() {
         }
 
-        ViewNode(Parcel in, PooledStringReader preader) {
-            mId = in.readInt();
-            if (mId != 0) {
-                mIdEntry = preader.readString();
-                if (mIdEntry != null) {
-                    mIdType = preader.readString();
-                    mIdPackage = preader.readString();
-                } else {
-                    mIdPackage = mIdType = null;
+        ViewNode(Parcel in, PooledStringReader preader, float[] tmpMatrix) {
+            mClassName = preader.readString();
+            mFlags = in.readInt();
+            final int flags = mFlags;
+            if ((flags&FLAGS_HAS_ID) != 0) {
+                mId = in.readInt();
+                if (mId != 0) {
+                    mIdEntry = preader.readString();
+                    if (mIdEntry != null) {
+                        mIdType = preader.readString();
+                        mIdPackage = preader.readString();
+                    }
                 }
+            }
+            if ((flags&FLAGS_HAS_LARGE_COORDS) != 0) {
+                mX = in.readInt();
+                mY = in.readInt();
+                mWidth = in.readInt();
+                mHeight = in.readInt();
             } else {
-                mIdPackage = mIdType = mIdEntry = null;
+                int val = in.readInt();
+                mX = val&0x7fff;
+                mY = (val>>16)&0x7fff;
+                val = in.readInt();
+                mWidth = val&0x7fff;
+                mHeight = (val>>16)&0x7fff;
             }
-            mX = in.readInt();
-            mY = in.readInt();
-            mScrollX = in.readInt();
-            mScrollY = in.readInt();
-            mWidth = in.readInt();
-            mHeight = in.readInt();
-            mFlags = in.readInt();
-            mClassName = preader.readString();
-            mContentDescription = TextUtils.CHAR_SEQUENCE_CREATOR.createFromParcel(in);
-            if (in.readInt() != 0) {
+            if ((flags&FLAGS_HAS_SCROLL) != 0) {
+                mScrollX = in.readInt();
+                mScrollY = in.readInt();
+            }
+            if ((flags&FLAGS_HAS_MATRIX) != 0) {
+                mMatrix = new Matrix();
+                in.readFloatArray(tmpMatrix);
+                mMatrix.setValues(tmpMatrix);
+            }
+            if ((flags&FLAGS_HAS_ELEVATION) != 0) {
+                mElevation = in.readFloat();
+            }
+            if ((flags&FLAGS_HAS_ALPHA) != 0) {
+                mAlpha = in.readFloat();
+            }
+            if ((flags&FLAGS_HAS_CONTENT_DESCRIPTION) != 0) {
+                mContentDescription = TextUtils.CHAR_SEQUENCE_CREATOR.createFromParcel(in);
+            }
+            if ((flags&FLAGS_HAS_TEXT) != 0) {
                 mText = new ViewNodeText(in);
-            } else {
-                mText = null;
             }
-            mExtras = in.readBundle();
-            final int NCHILDREN = in.readInt();
-            if (NCHILDREN > 0) {
+            if ((flags&FLAGS_HAS_EXTRAS) != 0) {
+                mExtras = in.readBundle();
+            }
+            if ((flags&FLAGS_HAS_CHILDREN) != 0) {
+                final int NCHILDREN = in.readInt();
                 mChildren = new ViewNode[NCHILDREN];
                 for (int i=0; i<NCHILDREN; i++) {
-                    mChildren[i] = new ViewNode(in, preader);
+                    mChildren[i] = new ViewNode(in, preader, tmpMatrix);
                 }
-            } else {
-                mChildren = null;
             }
         }
 
-        void writeToParcel(Parcel out, PooledStringWriter pwriter) {
-            out.writeInt(mId);
-            if (mId != 0) {
-                pwriter.writeString(mIdEntry);
-                if (mIdEntry != null) {
-                    pwriter.writeString(mIdType);
-                    pwriter.writeString(mIdPackage);
-                }
+        int writeToParcel(Parcel out, PooledStringWriter pwriter, float[] tmpMatrix) {
+            int flags = mFlags & ~FLAGS_ALL_CONTROL;
+            if (mId != View.NO_ID) {
+                flags |= FLAGS_HAS_ID;
+            }
+            if ((mX&~0x7fff) != 0 || (mY&~0x7fff) != 0
+                    || (mWidth&~0x7fff) != 0 | (mHeight&~0x7fff) != 0) {
+                flags |= FLAGS_HAS_LARGE_COORDS;
+            }
+            if (mScrollX != 0 || mScrollY != 0) {
+                flags |= FLAGS_HAS_SCROLL;
+            }
+            if (mMatrix != null) {
+                flags |= FLAGS_HAS_MATRIX;
+            }
+            if (mElevation != 0) {
+                flags |= FLAGS_HAS_ELEVATION;
+            }
+            if (mAlpha != 1.0f) {
+                flags |= FLAGS_HAS_ALPHA;
+            }
+            if (mContentDescription != null) {
+                flags |= FLAGS_HAS_CONTENT_DESCRIPTION;
             }
-            out.writeInt(mX);
-            out.writeInt(mY);
-            out.writeInt(mScrollX);
-            out.writeInt(mScrollY);
-            out.writeInt(mWidth);
-            out.writeInt(mHeight);
-            out.writeInt(mFlags);
-            pwriter.writeString(mClassName);
-            TextUtils.writeToParcel(mContentDescription, out, 0);
             if (mText != null) {
-                out.writeInt(1);
-                mText.writeToParcel(out);
-            } else {
-                out.writeInt(0);
+                flags |= FLAGS_HAS_TEXT;
+            }
+            if (mExtras != null) {
+                flags |= FLAGS_HAS_EXTRAS;
             }
-            out.writeBundle(mExtras);
             if (mChildren != null) {
+                flags |= FLAGS_HAS_CHILDREN;
+            }
+
+            pwriter.writeString(mClassName);
+            out.writeInt(flags);
+            if ((flags&FLAGS_HAS_ID) != 0) {
+                out.writeInt(mId);
+                if (mId != 0) {
+                    pwriter.writeString(mIdEntry);
+                    if (mIdEntry != null) {
+                        pwriter.writeString(mIdType);
+                        pwriter.writeString(mIdPackage);
+                    }
+                }
+            }
+            if ((flags&FLAGS_HAS_LARGE_COORDS) != 0) {
+                out.writeInt(mX);
+                out.writeInt(mY);
+                out.writeInt(mWidth);
+                out.writeInt(mHeight);
+            } else {
+                out.writeInt((mY<<16) | mX);
+                out.writeInt((mHeight<<16) | mWidth);
+            }
+            if ((flags&FLAGS_HAS_SCROLL) != 0) {
+                out.writeInt(mScrollX);
+                out.writeInt(mScrollY);
+            }
+            if ((flags&FLAGS_HAS_MATRIX) != 0) {
+                mMatrix.getValues(tmpMatrix);
+                out.writeFloatArray(tmpMatrix);
+            }
+            if ((flags&FLAGS_HAS_ELEVATION) != 0) {
+                out.writeFloat(mElevation);
+            }
+            if ((flags&FLAGS_HAS_ALPHA) != 0) {
+                out.writeFloat(mAlpha);
+            }
+            if ((flags&FLAGS_HAS_CONTENT_DESCRIPTION) != 0) {
+                TextUtils.writeToParcel(mContentDescription, out, 0);
+            }
+            if ((flags&FLAGS_HAS_TEXT) != 0) {
+                mText.writeToParcel(out);
+            }
+            if ((flags&FLAGS_HAS_EXTRAS) != 0) {
+                out.writeBundle(mExtras);
+            }
+            int N = 1;
+            if ((flags&FLAGS_HAS_CHILDREN) != 0) {
                 final int NCHILDREN = mChildren.length;
                 out.writeInt(NCHILDREN);
                 for (int i=0; i<NCHILDREN; i++) {
-                    mChildren[i].writeToParcel(out, pwriter);
+                    N += mChildren[i].writeToParcel(out, pwriter, tmpMatrix);
                 }
-            } else {
-                out.writeInt(0);
             }
+            return N;
         }
 
         /**
@@ -408,6 +498,33 @@ public class AssistStructure implements Parcelable {
         }
 
         /**
+         * Returns the transformation that has been applied to this view, such as a translation
+         * or scaling.  The returned Matrix object is owned by ViewNode; do not modify it.
+         * Returns null if there is no transformation applied to the view.
+         */
+        public Matrix getTransformation() {
+            return mMatrix;
+        }
+
+        /**
+         * Returns the visual elevation of the view, used for shadowing and other visual
+         * characterstics, as set by {@link ViewStructure#setElevation
+         * ViewStructure.setElevation(float)}.
+         */
+        public float getElevation() {
+            return mElevation;
+        }
+
+        /**
+         * Returns the alpha transformation of the view, used to reduce the overall opacity
+         * of the view's contents, as set by {@link ViewStructure#setAlpha
+         * ViewStructure.setAlpha(float)}.
+         */
+        public float getAlpha() {
+            return mAlpha;
+        }
+
+        /**
          * Returns the visibility mode of this view, as per
          * {@link android.view.View#getVisibility() View.getVisibility()}.
          */
@@ -646,6 +763,25 @@ public class AssistStructure implements Parcelable {
         }
 
         @Override
+        public void setTransformation(Matrix matrix) {
+            if (matrix == null) {
+                mNode.mMatrix = null;
+            } else {
+                mNode.mMatrix = new Matrix(matrix);
+            }
+        }
+
+        @Override
+        public void setElevation(float elevation) {
+            mNode.mElevation = elevation;
+        }
+
+        @Override
+        public void setAlpha(float alpha) {
+            mNode.mAlpha = alpha;
+        }
+
+        @Override
         public void setVisibility(int visibility) {
             mNode.mFlags = (mNode.mFlags&~ViewNode.FLAGS_VISIBILITY_MASK) | visibility;
         }
@@ -919,6 +1055,18 @@ public class AssistStructure implements Parcelable {
         if (scrollX != 0 || scrollY != 0) {
             Log.i(TAG, prefix + "  Scroll: " + scrollX + "," + scrollY);
         }
+        Matrix matrix = node.getTransformation();
+        if (matrix != null) {
+            Log.i(TAG, prefix + "  Transformation: " + matrix);
+        }
+        float elevation = node.getElevation();
+        if (elevation != 0) {
+            Log.i(TAG, prefix + "  Elevation: " + elevation);
+        }
+        float alpha = node.getAlpha();
+        if (alpha != 0) {
+            Log.i(TAG, prefix + "  Alpha: " + elevation);
+        }
         CharSequence contentDescription = node.getContentDescription();
         if (contentDescription != null) {
             Log.i(TAG, prefix + "  Content description: " + contentDescription);
@@ -1010,27 +1158,33 @@ public class AssistStructure implements Parcelable {
             }
             if (mPendingAsyncChildren.size() > 0) {
                 // We waited too long, assume none of the assist structure is valid.
+                Log.w(TAG, "Skipping assist structure, waiting too long for async children (have "
+                        + mPendingAsyncChildren.size() + " remaining");
                 skipStructure = true;
             }
         }
         int start = out.dataPosition();
         PooledStringWriter pwriter = new PooledStringWriter(out);
+        float[] tmpMatrix = new float[9];
         ComponentName.writeToParcel(mActivityComponent, out);
         final int N = skipStructure ? 0 : mWindowNodes.size();
         out.writeInt(N);
+        int NV = 0;
         for (int i=0; i<N; i++) {
-            mWindowNodes.get(i).writeToParcel(out, pwriter);
+            NV += mWindowNodes.get(i).writeToParcel(out, pwriter, tmpMatrix);
         }
         pwriter.finish();
-        Log.i(TAG, "Flattened assist data: " + (out.dataPosition() - start) + " bytes");
+        Log.i(TAG, "Flattened assist data: " + (out.dataPosition() - start) + " bytes, containing "
+                + N + " windows, " + NV + " views");
     }
 
     void readContentFromParcel(Parcel in) {
         PooledStringReader preader = new PooledStringReader(in);
+        float[] tmpMatrix = new float[9];
         mActivityComponent = ComponentName.readFromParcel(in);
         final int N = in.readInt();
         for (int i=0; i<N; i++) {
-            mWindowNodes.add(new WindowNode(in, preader));
+            mWindowNodes.add(new WindowNode(in, preader, tmpMatrix));
         }
         //dump();
     }
diff --git a/core/java/android/view/View.java b/core/java/android/view/View.java
index 92dae2e..b3def33 100644
--- a/core/java/android/view/View.java
+++ b/core/java/android/view/View.java
@@ -6179,6 +6179,10 @@ public class View implements Drawable.Callback, KeyEvent.Callback,
             structure.setId(id, null, null, null);
         }
         structure.setDimens(mLeft, mTop, mScrollX, mScrollY, mRight - mLeft, mBottom - mTop);
+        if (!hasIdentityMatrix()) {
+            structure.setTransformation(getMatrix());
+        }
+        structure.setElevation(getZ());
         structure.setVisibility(getVisibility());
         structure.setEnabled(isEnabled());
         if (isClickable()) {
@@ -6215,11 +6219,6 @@ public class View implements Drawable.Callback, KeyEvent.Callback,
         structure.setContentDescription(getContentDescription());
     }
 
-    /** @hide */
-    public void onProvideAssistStructure(ViewStructure structure) {
-        onProvideStructure(structure);
-    }
-
     /**
      * Called when assist structure is being retrieved from a view as part of
      * {@link android.app.Activity#onProvideAssistData Activity.onProvideAssistData} to
@@ -6232,7 +6231,6 @@ public class View implements Drawable.Callback, KeyEvent.Callback,
         AccessibilityNodeProvider provider = getAccessibilityNodeProvider();
         if (provider != null) {
             AccessibilityNodeInfo info = createAccessibilityNodeInfo();
-            Log.i("View", "Provider of " + this + ": children=" + info.getChildCount());
             structure.setChildCount(1);
             ViewStructure root = structure.newChild(0);
             populateVirtualStructure(root, provider, info);
@@ -6240,11 +6238,6 @@ public class View implements Drawable.Callback, KeyEvent.Callback,
         }
     }
 
-    /** @hide */
-    public void onProvideVirtualAssistStructure(ViewStructure structure) {
-        onProvideVirtualStructure(structure);
-    }
-
     private void populateVirtualStructure(ViewStructure structure,
             AccessibilityNodeProvider provider, AccessibilityNodeInfo info) {
         structure.setId(AccessibilityNodeInfo.getVirtualDescendantId(info.getSourceNodeId()),
@@ -6284,8 +6277,6 @@ public class View implements Drawable.Callback, KeyEvent.Callback,
         CharSequence cname = info.getClassName();
         structure.setClassName(cname != null ? cname.toString() : null);
         structure.setContentDescription(info.getContentDescription());
-        Log.i("View", "vassist " + cname + " @ " + rect.toShortString()
-                + " text=" + info.getText() + " cd=" + info.getContentDescription());
         if (info.getText() != null || info.getError() != null) {
             structure.setText(info.getText(), info.getTextSelectionStart(),
                     info.getTextSelectionEnd());
@@ -6310,8 +6301,8 @@ public class View implements Drawable.Callback, KeyEvent.Callback,
      */
     public void dispatchProvideStructure(ViewStructure structure) {
         if (!isAssistBlocked()) {
-            onProvideAssistStructure(structure);
-            onProvideVirtualAssistStructure(structure);
+            onProvideStructure(structure);
+            onProvideVirtualStructure(structure);
         } else {
             structure.setClassName(getAccessibilityClassName().toString());
             structure.setAssistBlocked(true);
diff --git a/core/java/android/view/ViewStructure.java b/core/java/android/view/ViewStructure.java
index 9ab0ace..794622a 100644
--- a/core/java/android/view/ViewStructure.java
+++ b/core/java/android/view/ViewStructure.java
@@ -16,6 +16,7 @@
 
 package android.view;
 
+import android.graphics.Matrix;
 import android.graphics.Rect;
 import android.os.Bundle;
 
@@ -50,6 +51,28 @@ public abstract class ViewStructure {
             int height);
 
     /**
+     * Set the transformation matrix associated with this view, as per
+     * {@link View#getMatrix View.getMatrix()}, or null if there is none.
+     */
+    public abstract void setTransformation(Matrix matrix);
+
+    /**
+     * Set the visual elevation (shadow) of the view, as per
+     * {@link View#getZ View.getZ()}.  Note this is <em>not</em> related
+     * to the physical Z-ordering of this view relative to its other siblings (that is how
+     * they overlap when drawing), it is only the visual representation for shadowing.
+     */
+    public abstract void setElevation(float elevation);
+
+    /**
+     * Set an alpha transformation that is applied to this view, as per
+     * {@link View#getAlpha View.getAlpha()}.  Value ranges from 0
+     * (completely transparent) to 1 (completely opaque); the default is 1, which means
+     * no transformation.
+     */
+    public abstract void setAlpha(float alpha);
+
+    /**
      * Set the visibility state of this view, as per
      * {@link View#getVisibility View.getVisibility()}.
      */
diff --git a/tests/VoiceInteraction/res/layout/voice_interaction_session.xml b/tests/VoiceInteraction/res/layout/voice_interaction_session.xml
index d44afb0..610f30b 100644
--- a/tests/VoiceInteraction/res/layout/voice_interaction_session.xml
+++ b/tests/VoiceInteraction/res/layout/voice_interaction_session.xml
@@ -18,6 +18,11 @@
     android:layout_width="match_parent"
     android:layout_height="match_parent">
 
+    <ImageView android:id="@+id/full_screenshot"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        android:visibility="invisible"/>
+
     <com.android.test.voiceinteraction.AssistVisualizer android:id="@+id/assist_visualizer"
             android:layout_width="match_parent"
             android:layout_height="match_parent" />
@@ -30,19 +35,29 @@
             android:layout_width="match_parent"
             android:layout_height="wrap_content"
             android:layout_gravity="top"
-            android:orientation="vertical"
+            android:orientation="horizontal"
             android:background="#ffffffff"
             android:elevation="8dp"
             >
-            <Button android:id="@+id/start"
+            <ImageView android:id="@+id/screenshot"
+                android:layout_width="wrap_content"
+                android:layout_height="46dp"
+                android:adjustViewBounds="true" />
+            <View android:layout_width="0dp"
+                android:layout_height="0dp"
+                android:layout_weight="1" />
+            <Button android:id="@+id/do_tree"
                 android:layout_width="wrap_content"
                 android:layout_height="wrap_content"
-                android:layout_gravity="top|right"
-                android:text="@string/start"
-                />
-            <ImageView android:id="@+id/screenshot"
+                android:text="@string/tree" />
+            <Button android:id="@+id/do_text"
                 android:layout_width="wrap_content"
-                android:layout_height="wrap_content"/>
+                android:layout_height="wrap_content"
+                android:text="@string/text" />
+            <Button android:id="@+id/start"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:text="@string/start" />
         </LinearLayout>
 
         <LinearLayout android:id="@+id/bottom_content"
@@ -58,26 +73,22 @@
                 android:layout_width="match_parent"
                 android:layout_height="wrap_content"
                 android:layout_marginBottom="16dp"
-                android:textAppearance="?android:attr/textAppearanceMedium"
-                />
+                android:textAppearance="?android:attr/textAppearanceMedium" />
 
             <LinearLayout android:layout_width="match_parent" android:layout_height="wrap_content"
                     android:orientation="horizontal">
                 <Button android:id="@+id/confirm"
                     android:layout_width="wrap_content"
                     android:layout_height="wrap_content"
-                    android:text="@string/confirm"
-                    />
+                    android:text="@string/confirm" />
                 <Button android:id="@+id/complete"
                     android:layout_width="wrap_content"
                     android:layout_height="wrap_content"
-                    android:text="@string/complete"
-                    />
+                    android:text="@string/complete" />
                 <Button android:id="@+id/abort"
                     android:layout_width="wrap_content"
                     android:layout_height="wrap_content"
-                    android:text="@string/abort"
-                    />
+                    android:text="@string/abort" />
             </LinearLayout>
 
         </LinearLayout>
diff --git a/tests/VoiceInteraction/res/values/strings.xml b/tests/VoiceInteraction/res/values/strings.xml
index 6289929..4cf4104 100644
--- a/tests/VoiceInteraction/res/values/strings.xml
+++ b/tests/VoiceInteraction/res/values/strings.xml
@@ -17,6 +17,8 @@
 <resources>
 
     <string name="start">Start</string>
+    <string name="tree">Tree</string>
+    <string name="text">Text</string>
     <string name="asyncStructure">(Async structure goes here)</string>
     <string name="confirm">Confirm</string>
     <string name="abort">Abort</string>
diff --git a/tests/VoiceInteraction/src/com/android/test/voiceinteraction/AssistVisualizer.java b/tests/VoiceInteraction/src/com/android/test/voiceinteraction/AssistVisualizer.java
index 439ace8..339755f 100644
--- a/tests/VoiceInteraction/src/com/android/test/voiceinteraction/AssistVisualizer.java
+++ b/tests/VoiceInteraction/src/com/android/test/voiceinteraction/AssistVisualizer.java
@@ -20,6 +20,7 @@ import android.annotation.Nullable;
 import android.app.assist.AssistStructure;
 import android.content.Context;
 import android.graphics.Canvas;
+import android.graphics.Matrix;
 import android.graphics.Paint;
 import android.graphics.Rect;
 import android.util.AttributeSet;
@@ -31,10 +32,32 @@ import java.util.ArrayList;
 public class AssistVisualizer extends View {
     static final String TAG = "AssistVisualizer";
 
+    static class TextEntry {
+        final Rect bounds;
+        final int parentLeft, parentTop;
+        final Matrix matrix;
+        final String className;
+        final CharSequence text;
+
+        TextEntry(AssistStructure.ViewNode node, int parentLeft, int parentTop, Matrix matrix) {
+            int left = parentLeft+node.getLeft();
+            int top = parentTop+node.getTop();
+            bounds = new Rect(left, top, left+node.getWidth(), top+node.getHeight());
+            this.parentLeft = parentLeft;
+            this.parentTop = parentTop;
+            this.matrix = new Matrix(matrix);
+            this.className = node.getClassName();
+            this.text = node.getText() != null ? node.getText() : node.getContentDescription();
+        }
+    }
+
     AssistStructure mAssistStructure;
     final Paint mFramePaint = new Paint();
-    final ArrayList<Rect> mTextRects = new ArrayList<>();
+    final Paint mFrameNoTransformPaint = new Paint();
+    final ArrayList<Matrix> mMatrixStack = new ArrayList<>();
+    final ArrayList<TextEntry> mTextRects = new ArrayList<>();
     final int[] mTmpLocation = new int[2];
+    final float[] mTmpMatrixPoint = new float[2];
 
     public AssistVisualizer(Context context, @Nullable AttributeSet attrs) {
         super(context, attrs);
@@ -42,17 +65,26 @@ public class AssistVisualizer extends View {
         mFramePaint.setColor(0xffff0000);
         mFramePaint.setStyle(Paint.Style.STROKE);
         mFramePaint.setStrokeWidth(0);
+        float density = getResources().getDisplayMetrics().density;
+        mFramePaint.setShadowLayer(density, density, density, 0xff000000);
+        mFrameNoTransformPaint.setColor(0xff0000ff);
+        mFrameNoTransformPaint.setStyle(Paint.Style.STROKE);
+        mFrameNoTransformPaint.setStrokeWidth(0);
+        mFrameNoTransformPaint.setShadowLayer(density, density, density, 0xff000000);
     }
 
     public void setAssistStructure(AssistStructure as) {
         mAssistStructure = as;
-        mAssistStructure.dump();
         mTextRects.clear();
         final int N = as.getWindowNodeCount();
         if (N > 0) {
             for (int i=0; i<N; i++) {
                 AssistStructure.WindowNode windowNode = as.getWindowNodeAt(i);
-                buildTextRects(windowNode.getRootViewNode(), windowNode.getLeft(),
+                mMatrixStack.clear();
+                Matrix matrix = new Matrix();
+                matrix.setTranslate(windowNode.getLeft(), windowNode.getTop());
+                mMatrixStack.add(matrix);
+                buildTextRects(windowNode.getRootViewNode(), 0, windowNode.getLeft(),
                         windowNode.getTop());
             }
         }
@@ -60,31 +92,62 @@ public class AssistVisualizer extends View {
         invalidate();
     }
 
+    public void logTree() {
+        if (mAssistStructure != null) {
+            mAssistStructure.dump();
+        }
+    }
+
+    public void logText() {
+        final int N = mTextRects.size();
+        for (int i=0; i<N; i++) {
+            TextEntry te = mTextRects.get(i);
+            Log.d(TAG, "View " + te.className + " " + te.bounds.toShortString()
+                    + " in " + te.parentLeft + "," + te.parentTop
+                    + " matrix=" + te.matrix.toShortString() + ": "
+                    + te.text);
+        }
+    }
+
     public void clearAssistData() {
         mAssistStructure = null;
         mTextRects.clear();
     }
 
-    void buildTextRects(AssistStructure.ViewNode root, int parentLeft, int parentTop) {
+    void buildTextRects(AssistStructure.ViewNode root, int matrixStackIndex,
+            int parentLeft, int parentTop) {
         if (root.getVisibility() != View.VISIBLE) {
             return;
         }
-        int left = parentLeft+root.getLeft();
-        int top = parentTop+root.getTop();
+        Matrix parentMatrix = mMatrixStack.get(matrixStackIndex);
+        matrixStackIndex++;
+        Matrix matrix;
+        if (mMatrixStack.size() > matrixStackIndex) {
+            matrix = mMatrixStack.get(matrixStackIndex);
+            matrix.set(parentMatrix);
+        } else {
+            matrix = new Matrix(parentMatrix);
+            mMatrixStack.add(matrix);
+        }
+        matrix.preTranslate(root.getLeft(), root.getTop());
+        int left = parentLeft + root.getLeft();
+        int top = parentTop + root.getTop();
+        Matrix transform = root.getTransformation();
+        if (transform != null) {
+            matrix.preConcat(transform);
+        }
         if (root.getText() != null || root.getContentDescription() != null) {
-            Rect r = new Rect(left, top, left+root.getWidth(), top+root.getHeight());
-            Log.d(TAG, "View " + root.getClassName() + " " + left + "," + top + " tr "
-                    + r.toShortString() + ": "
-                    + (root.getText() != null ? root.getText() : root.getContentDescription()));
-            mTextRects.add(r);
+            TextEntry te = new TextEntry(root, parentLeft, parentTop, matrix);
+            mTextRects.add(te);
         }
         final int N = root.getChildCount();
         if (N > 0) {
             left -= root.getScrollX();
             top -= root.getScrollY();
+            matrix.preTranslate(-root.getScrollX(), -root.getScrollY());
             for (int i=0; i<N; i++) {
                 AssistStructure.ViewNode child = root.getChildAt(i);
-                buildTextRects(child, left, top);
+                buildTextRects(child, matrixStackIndex, left, top);
             }
         }
     }
@@ -96,9 +159,19 @@ public class AssistVisualizer extends View {
         final int N = mTextRects.size();
         Log.d(TAG, "Drawing text rects in " + this + ": found " + mTextRects.size());
         for (int i=0; i<N; i++) {
-            Rect r = mTextRects.get(i);
-            canvas.drawRect(r.left-mTmpLocation[0], r.top-mTmpLocation[1],
-                    r.right-mTmpLocation[0], r.bottom-mTmpLocation[1], mFramePaint);
+            TextEntry te = mTextRects.get(i);
+            canvas.drawRect(te.bounds.left - mTmpLocation[0], te.bounds.top - mTmpLocation[1],
+                    te.bounds.right - mTmpLocation[0], te.bounds.bottom - mTmpLocation[1],
+                    mFrameNoTransformPaint);
+        }
+        for (int i=0; i<N; i++) {
+            TextEntry te = mTextRects.get(i);
+            canvas.save();
+            canvas.translate(-mTmpLocation[0], -mTmpLocation[1]);
+            canvas.concat(te.matrix);
+            canvas.drawRect(0, 0, te.bounds.right - te.bounds.left, te.bounds.bottom - te.bounds.top,
+                    mFramePaint);
+            canvas.restore();
         }
     }
 }
diff --git a/tests/VoiceInteraction/src/com/android/test/voiceinteraction/MainInteractionSession.java b/tests/VoiceInteraction/src/com/android/test/voiceinteraction/MainInteractionSession.java
index 90a781c..97c1e85 100644
--- a/tests/VoiceInteraction/src/com/android/test/voiceinteraction/MainInteractionSession.java
+++ b/tests/VoiceInteraction/src/com/android/test/voiceinteraction/MainInteractionSession.java
@@ -42,8 +42,11 @@ public class MainInteractionSession extends VoiceInteractionSession
     View mTopContent;
     View mBottomContent;
     TextView mText;
+    Button mTreeButton;
+    Button mTextButton;
     Button mStartButton;
     ImageView mScreenshot;
+    ImageView mFullScreenshot;
     Button mConfirmButton;
     Button mCompleteButton;
     Button mAbortButton;
@@ -110,9 +113,15 @@ public class MainInteractionSession extends VoiceInteractionSession
         mTopContent = mContentView.findViewById(R.id.top_content);
         mBottomContent = mContentView.findViewById(R.id.bottom_content);
         mText = (TextView)mContentView.findViewById(R.id.text);
+        mTreeButton = (Button)mContentView.findViewById(R.id.do_tree);
+        mTreeButton.setOnClickListener(this);
+        mTextButton = (Button)mContentView.findViewById(R.id.do_text);
+        mTextButton.setOnClickListener(this);
         mStartButton = (Button)mContentView.findViewById(R.id.start);
         mStartButton.setOnClickListener(this);
         mScreenshot = (ImageView)mContentView.findViewById(R.id.screenshot);
+        mScreenshot.setOnClickListener(this);
+        mFullScreenshot = (ImageView)mContentView.findViewById(R.id.full_screenshot);
         mConfirmButton = (Button)mContentView.findViewById(R.id.confirm);
         mConfirmButton.setOnClickListener(this);
         mCompleteButton = (Button)mContentView.findViewById(R.id.complete);
@@ -156,8 +165,10 @@ public class MainInteractionSession extends VoiceInteractionSession
             mScreenshot.setAdjustViewBounds(true);
             mScreenshot.setMaxWidth(screenshot.getWidth()/3);
             mScreenshot.setMaxHeight(screenshot.getHeight()/3);
+            mFullScreenshot.setImageBitmap(screenshot);
         } else {
             mScreenshot.setImageDrawable(null);
+            mFullScreenshot.setImageDrawable(null);
         }
     }
 
@@ -183,7 +194,15 @@ public class MainInteractionSession extends VoiceInteractionSession
     }
 
     public void onClick(View v) {
-        if (v == mStartButton) {
+        if (v == mTreeButton) {
+            if (mAssistVisualizer != null) {
+                mAssistVisualizer.logTree();
+            }
+        } else if (v == mTextButton) {
+            if (mAssistVisualizer != null) {
+                mAssistVisualizer.logText();
+            }
+        } else if (v == mStartButton) {
             mState = STATE_LAUNCHING;
             updateState();
             startVoiceActivity(mStartIntent);
@@ -219,9 +238,15 @@ public class MainInteractionSession extends VoiceInteractionSession
         } else if (v == mAbortButton) {
             mPendingRequest.sendAbortVoiceResult(null);
             mPendingRequest = null;
-        } else if (v== mCompleteButton) {
+        } else if (v == mCompleteButton) {
             mPendingRequest.sendCompleteVoiceResult(null);
             mPendingRequest = null;
+        } else if (v == mScreenshot) {
+            if (mFullScreenshot.getVisibility() != View.VISIBLE) {
+                mFullScreenshot.setVisibility(View.VISIBLE);
+            } else {
+                mFullScreenshot.setVisibility(View.INVISIBLE);
+            }
         }
         updateState();
     }