Merge "Added new Autofill APIs to get name of id used on android:text."
diff --git a/api/current.txt b/api/current.txt
index def2b7f..10b5c67 100644
--- a/api/current.txt
+++ b/api/current.txt
@@ -6753,6 +6753,7 @@
     method public java.lang.CharSequence getText();
     method public int getTextBackgroundColor();
     method public int getTextColor();
+    method public java.lang.String getTextIdEntry();
     method public int[] getTextLineBaselines();
     method public int[] getTextLineCharOffsets();
     method public int getTextSelectionEnd();
@@ -47262,6 +47263,7 @@
     method public abstract void setSelected(boolean);
     method public abstract void setText(java.lang.CharSequence);
     method public abstract void setText(java.lang.CharSequence, int, int);
+    method public void setTextIdEntry(java.lang.String);
     method public abstract void setTextLines(int[], int[]);
     method public abstract void setTextStyle(float, int, int, int);
     method public abstract void setTransformation(android.graphics.Matrix);
diff --git a/core/java/android/app/assist/AssistStructure.java b/core/java/android/app/assist/AssistStructure.java
index 7b549cd5..87f2271 100644
--- a/core/java/android/app/assist/AssistStructure.java
+++ b/core/java/android/app/assist/AssistStructure.java
@@ -32,6 +32,8 @@
 import android.view.autofill.AutofillId;
 import android.view.autofill.AutofillValue;
 
+import com.android.internal.util.Preconditions;
+
 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.List;
@@ -624,6 +626,7 @@
         int mMinEms = -1;
         int mMaxEms = -1;
         int mMaxLength = -1;
+        @Nullable String mTextIdEntry;
 
         // POJO used to override some autofill-related values when the node is parcelized.
         // Not written to parcel.
@@ -701,7 +704,7 @@
             final int flags = mFlags;
             if ((flags&FLAGS_HAS_ID) != 0) {
                 mId = in.readInt();
-                if (mId != 0) {
+                if (mId != View.NO_ID) {
                     mIdEntry = preader.readString();
                     if (mIdEntry != null) {
                         mIdType = preader.readString();
@@ -724,6 +727,7 @@
                 mMinEms = in.readInt();
                 mMaxEms = in.readInt();
                 mMaxLength = in.readInt();
+                mTextIdEntry = preader.readString();
             }
             if ((flags&FLAGS_HAS_LARGE_COORDS) != 0) {
                 mX = in.readInt();
@@ -857,7 +861,7 @@
             out.writeInt(writtenFlags);
             if ((flags&FLAGS_HAS_ID) != 0) {
                 out.writeInt(mId);
-                if (mId != 0) {
+                if (mId != View.NO_ID) {
                     pwriter.writeString(mIdEntry);
                     if (mIdEntry != null) {
                         pwriter.writeString(mIdType);
@@ -890,6 +894,7 @@
                 out.writeInt(mMinEms);
                 out.writeInt(mMaxEms);
                 out.writeInt(mMaxLength);
+                pwriter.writeString(mTextIdEntry);
             }
             if ((flags&FLAGS_HAS_LARGE_COORDS) != 0) {
                 out.writeInt(mX);
@@ -1430,6 +1435,17 @@
         }
 
         /**
+         * Gets the identifier used to set the text associated with this view.
+         *
+         * <p>It's only relevant when the {@link AssistStructure} is used for autofill purposes,
+         * not for assist purposes.
+         */
+        @Nullable
+        public String getTextIdEntry() {
+            return mTextIdEntry;
+        }
+
+        /**
          * Return additional hint text associated with the node; this is typically used with
          * a node that takes user input, describing to the user what the input means.
          */
@@ -1684,6 +1700,11 @@
         }
 
         @Override
+        public void setTextIdEntry(@NonNull String entryName) {
+            mNode.mTextIdEntry = Preconditions.checkNotNull(entryName);
+        }
+
+        @Override
         public void setHint(CharSequence hint) {
             getNodeText().mHint = hint != null ? hint.toString() : null;
         }
@@ -2082,6 +2103,7 @@
             Log.i(TAG, prefix + "  Text color fg: #" + Integer.toHexString(node.getTextColor())
                     + ", bg: #" + Integer.toHexString(node.getTextBackgroundColor()));
             Log.i(TAG, prefix + "  Input type: " + node.getInputType());
+            Log.i(TAG, prefix + "  Resource id: " + node.getTextIdEntry());
         }
         String webDomain = node.getWebDomain();
         if (webDomain != null) {
diff --git a/core/java/android/view/ViewStructure.java b/core/java/android/view/ViewStructure.java
index d665dde..1d94abe 100644
--- a/core/java/android/view/ViewStructure.java
+++ b/core/java/android/view/ViewStructure.java
@@ -26,6 +26,8 @@
 import android.view.autofill.AutofillId;
 import android.view.autofill.AutofillValue;
 
+import com.android.internal.util.Preconditions;
+
 import java.util.List;
 
 /**
@@ -204,6 +206,16 @@
     public abstract void setTextLines(int[] charOffsets, int[] baselines);
 
     /**
+     * Sets the identifier used to set the text associated with this view.
+     *
+     * <p>Should only be set when the node is used for autofill purposes - it will be ignored
+     * when used for Assist.
+     */
+    public void setTextIdEntry(@NonNull String entryName) {
+        Preconditions.checkNotNull(entryName);
+    }
+
+    /**
      * Set optional hint text associated with this view; this is for example the text that is
      * shown by an EditText when it is empty to indicate to the user the kind of text to input.
      */
diff --git a/core/java/android/widget/TextView.java b/core/java/android/widget/TextView.java
index 1e17f34..1618d62 100644
--- a/core/java/android/widget/TextView.java
+++ b/core/java/android/widget/TextView.java
@@ -44,6 +44,7 @@
 import android.content.res.ColorStateList;
 import android.content.res.CompatibilityInfo;
 import android.content.res.Configuration;
+import android.content.res.ResourceId;
 import android.content.res.Resources;
 import android.content.res.TypedArray;
 import android.content.res.XmlResourceParser;
@@ -785,9 +786,11 @@
     // mAutoSizeStepGranularityInPx.
     private boolean mHasPresetAutoSizeValues = false;
 
-    // Indicates whether the text was set from resources or dynamically, so it can be used to
+    // Indicates whether the text was set statically or dynamically, so it can be used to
     // sanitize autofill requests.
-    private boolean mTextFromResource = false;
+    private boolean mSetFromXmlOrResourceId = false;
+    // Resource id used to set the text - used for autofill purposes.
+    private @StringRes int mTextId = ResourceId.ID_NULL;
 
     /**
      * Kick-start the font cache for the zygote process (to pay the cost of
@@ -926,7 +929,8 @@
 
         int n = a.getIndexCount();
 
-        boolean fromResourceId = false;
+        // Must set id in a temporary variable because it will be reset by setText()
+        boolean setFromXml = false;
         for (int i = 0; i < n; i++) {
             int attr = a.getIndex(i);
 
@@ -1068,7 +1072,8 @@
                     break;
 
                 case com.android.internal.R.styleable.TextView_text:
-                    fromResourceId = true;
+                    setFromXml = true;
+                    mTextId = a.getResourceId(attr, ResourceId.ID_NULL);
                     text = a.getText(attr);
                     break;
 
@@ -1460,8 +1465,8 @@
         }
 
         setText(text, bufferType);
-        if (fromResourceId) {
-            mTextFromResource = true;
+        if (setFromXml) {
+            mSetFromXmlOrResourceId = true;
         }
 
         if (hint != null) setHint(hint);
@@ -5278,7 +5283,7 @@
 
     private void setText(CharSequence text, BufferType type,
                          boolean notifyBefore, int oldlen) {
-        mTextFromResource = false;
+        mSetFromXmlOrResourceId = false;
         if (text == null) {
             text = "";
         }
@@ -5516,7 +5521,8 @@
     @android.view.RemotableViewMethod
     public final void setText(@StringRes int resid) {
         setText(getContext().getResources().getText(resid));
-        mTextFromResource = true;
+        mSetFromXmlOrResourceId = true;
+        mTextId = resid;
     }
 
     /**
@@ -5543,7 +5549,8 @@
      */
     public final void setText(@StringRes int resid, BufferType type) {
         setText(getContext().getResources().getText(resid), type);
-        mTextFromResource = true;
+        mSetFromXmlOrResourceId = true;
+        mTextId = resid;
     }
 
     /**
@@ -10234,7 +10241,10 @@
         final boolean isPassword = hasPasswordTransformationMethod()
                 || isPasswordInputType(getInputType());
         if (forAutofill) {
-            structure.setDataIsSensitive(!mTextFromResource);
+            structure.setDataIsSensitive(!mSetFromXmlOrResourceId);
+            if (mTextId != ResourceId.ID_NULL) {
+                structure.setTextIdEntry(getResources().getResourceEntryName(mTextId));
+            }
         }
 
         if (!isPassword || forAutofill) {