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Merge "Add accessibility scroll actions to TabWidget" into jb-mr1-dev

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This commit is contained in:
Svetoslav Ganov
2012-09-13 15:04:03 -07:00
committed by Android (Google) Code Review
parent 303309cb42 6053088884
commit 83cdb021eb
1 changed files with 37 additions and 0 deletions
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37
core/java/android/widget/TabWidget.java
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@@ -24,6 +24,7 @@ import android.graphics.Canvas;
import android.graphics.Rect;
import android.graphics.drawable.Drawable;
import android.os.Build;
import android.os.Bundle;
import android.util.AttributeSet;
import android.view.View;
import android.view.View.OnFocusChangeListener;
@@ -434,6 +435,42 @@ public class TabWidget extends LinearLayout implements OnFocusChangeListener {
public void onInitializeAccessibilityNodeInfo(AccessibilityNodeInfo info) {
super.onInitializeAccessibilityNodeInfo(info);
info.setClassName(TabWidget.class.getName());
final int tabCount = getTabCount();
if (tabCount > 1) {
if (mSelectedTab > 0) {
info.addAction(AccessibilityNodeInfo.ACTION_SCROLL_BACKWARD);
info.setScrollable(true);
}
if (mSelectedTab < (tabCount - 1)) {
info.addAction(AccessibilityNodeInfo.ACTION_SCROLL_FORWARD);
info.setScrollable(true);
}
}
}
@Override
public boolean performAccessibilityAction(int action, Bundle arguments) {
final int tabCount = getTabCount();
switch (action) {
case AccessibilityNodeInfo.ACTION_SCROLL_BACKWARD:
if ((tabCount > 1) && (mSelectedTab > 0)) {
focusCurrentTab(mSelectedTab - 1);
return true;
}
return false;
case AccessibilityNodeInfo.ACTION_SCROLL_FORWARD:
if ((tabCount > 1) && (mSelectedTab < (tabCount - 1))) {
focusCurrentTab(mSelectedTab + 1);
return true;
}
return false;
}
return super.performAccessibilityAction(action, arguments);
}
/**