Use LinkTextView for support disclaimer text.

am: 7e9146950d

Change-Id: Ia4a998039bfcdea3419a512d342665248f0b7ac3

res/layout/support_disclaimer_content.xml

@@ -20,7 +20,7 @@
     android:orientation="vertical"
     android:padding="24dp">
 
-    <TextView
+    <com.android.settings.widget.LinkTextView
         android:id="@+id/support_disclaimer_text"
         android:layout_width="match_parent"
         android:layout_height="wrap_content"

src/com/android/settings/widget/LinkAccessibilityHelper.java

@@ -1,169 +0,0 @@
-/*
- * Copyright (C) 2014 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.
- */
-
-package com.android.settings.widget;
-
-import android.graphics.Rect;
-import android.os.Bundle;
-import android.text.Layout;
-import android.text.Spanned;
-import android.text.style.ClickableSpan;
-import android.util.Log;
-import android.view.accessibility.AccessibilityEvent;
-import android.view.accessibility.AccessibilityNodeInfo;
-import android.widget.TextView;
-
-import java.util.List;
-
-/**
- * Copied from setup wizard.
- */
-public class LinkAccessibilityHelper extends ExploreByTouchHelper {
-
-    private static final String TAG = "LinkAccessibilityHelper";
-
-    private final TextView mView;
-    private final Rect mTempRect = new Rect();
-
-    public LinkAccessibilityHelper(TextView view) {
-        super(view);
-        mView = view;
-    }
-
-    @Override
-    protected int getVirtualViewAt(float x, float y) {
-        final CharSequence text = mView.getText();
-        if (text instanceof Spanned) {
-            final Spanned spannedText = (Spanned) text;
-            final int offset = mView.getOffsetForPosition(x, y);
-            ClickableSpan[] linkSpans = spannedText.getSpans(offset, offset, ClickableSpan.class);
-            if (linkSpans.length == 1) {
-                ClickableSpan linkSpan = linkSpans[0];
-                return spannedText.getSpanStart(linkSpan);
-            }
-        }
-        return INVALID_ID;
-    }
-
-    @Override
-    protected void getVisibleVirtualViews(List<Integer> virtualViewIds) {
-        final CharSequence text = mView.getText();
-        if (text instanceof Spanned) {
-            final Spanned spannedText = (Spanned) text;
-            ClickableSpan[] linkSpans = spannedText.getSpans(0, spannedText.length(),
-                    ClickableSpan.class);
-            for (ClickableSpan span : linkSpans) {
-                virtualViewIds.add(spannedText.getSpanStart(span));
-            }
-        }
-    }
-
-    @Override
-    protected void onPopulateEventForVirtualView(int virtualViewId, AccessibilityEvent event) {
-        final ClickableSpan span = getSpanForOffset(virtualViewId);
-        if (span != null) {
-            event.setContentDescription(getTextForSpan(span));
-        } else {
-            Log.e(TAG, "ClickableSpan is null for offset: " + virtualViewId);
-            event.setContentDescription(mView.getText());
-        }
-    }
-
-    @Override
-    protected void onPopulateNodeForVirtualView(int virtualViewId, AccessibilityNodeInfo info) {
-        final ClickableSpan span = getSpanForOffset(virtualViewId);
-        if (span != null) {
-            info.setContentDescription(getTextForSpan(span));
-        } else {
-            Log.e(TAG, "ClickableSpan is null for offset: " + virtualViewId);
-            info.setContentDescription(mView.getText());
-        }
-        info.setFocusable(true);
-        info.setClickable(true);
-        getBoundsForSpan(span, mTempRect);
-        if (!mTempRect.isEmpty()) {
-            info.setBoundsInParent(getBoundsForSpan(span, mTempRect));
-        } else {
-            Log.e(TAG, "LinkSpan bounds is empty for: " + virtualViewId);
-            mTempRect.set(0, 0, 1, 1);
-            info.setBoundsInParent(mTempRect);
-        }
-        info.addAction(AccessibilityNodeInfo.ACTION_CLICK);
-    }
-
-    @Override
-    protected boolean onPerformActionForVirtualView(int virtualViewId, int action,
-            Bundle arguments) {
-        if (action == AccessibilityNodeInfo.ACTION_CLICK) {
-            ClickableSpan span = getSpanForOffset(virtualViewId);
-            if (span != null) {
-                span.onClick(mView);
-                return true;
-            } else {
-                Log.e(TAG, "LinkSpan is null for offset: " + virtualViewId);
-            }
-        }
-        return false;
-    }
-
-    private ClickableSpan getSpanForOffset(int offset) {
-        CharSequence text = mView.getText();
-        if (text instanceof Spanned) {
-            Spanned spannedText = (Spanned) text;
-            ClickableSpan[] spans = spannedText.getSpans(offset, offset, ClickableSpan.class);
-            if (spans.length == 1) {
-                return spans[0];
-            }
-        }
-        return null;
-    }
-
-    private CharSequence getTextForSpan(ClickableSpan span) {
-        CharSequence text = mView.getText();
-        if (text instanceof Spanned) {
-            Spanned spannedText = (Spanned) text;
-            return spannedText.subSequence(spannedText.getSpanStart(span),
-                    spannedText.getSpanEnd(span));
-        }
-        return text;
-    }
-
-    // Find the bounds of a span. If it spans multiple lines, it will only return the bounds for the
-    // section on the first line.
-    private Rect getBoundsForSpan(ClickableSpan span, Rect outRect) {
-        CharSequence text = mView.getText();
-        outRect.setEmpty();
-        if (text instanceof Spanned) {
-            Spanned spannedText = (Spanned) text;
-            final int spanStart = spannedText.getSpanStart(span);
-            final int spanEnd = spannedText.getSpanEnd(span);
-            final Layout layout = mView.getLayout();
-            final float xStart = layout.getPrimaryHorizontal(spanStart);
-            final float xEnd = layout.getPrimaryHorizontal(spanEnd);
-            final int lineStart = layout.getLineForOffset(spanStart);
-            final int lineEnd = layout.getLineForOffset(spanEnd);
-            layout.getLineBounds(lineStart, outRect);
-            outRect.left = (int) xStart;
-            if (lineEnd == lineStart) {
-                outRect.right = (int) xEnd;
-            } // otherwise just leave it at the end of the start line
-
-            // Offset for padding
-            outRect.offset(mView.getTotalPaddingLeft(), mView.getTotalPaddingTop());
-        }
-        return outRect;
-    }
-}

src/com/android/settings/widget/LinkTextView.java

@@ -18,12 +18,14 @@ package com.android.settings.widget;
 
 import android.content.Context;
 import android.support.annotation.NonNull;
+import android.support.v13.view.ViewCompat;
 import android.text.Spanned;
 import android.text.method.LinkMovementMethod;
 import android.text.style.ClickableSpan;
 import android.util.AttributeSet;
 import android.view.MotionEvent;
 import android.widget.TextView;
+import com.android.setupwizardlib.util.LinkAccessibilityHelper;
 
 /**
  * Copied from setup wizard.
@@ -39,7 +41,7 @@ public class LinkTextView extends TextView {
     public LinkTextView(Context context, AttributeSet attrs) {
         super(context, attrs);
         mAccessibilityHelper = new LinkAccessibilityHelper(this);
-        setAccessibilityDelegate(mAccessibilityHelper);
+        ViewCompat.setAccessibilityDelegate(this, mAccessibilityHelper);
     }
 
     @Override