Merge "Adding accessibility support to the share UI."

Author: sganov

core/java/android/widget/ActivityChooserView.java

@@ -33,6 +33,8 @@
 import android.view.ViewGroup;
 import android.view.ViewTreeObserver;
 import android.view.ViewTreeObserver.OnGlobalLayoutListener;
+import android.view.accessibility.AccessibilityEvent;
+import android.view.accessibility.AccessibilityManager;
 import android.widget.ActivityChooserModel.ActivityChooserModelClient;
 
 /**
@@ -168,6 +170,11 @@ public void onGlobalLayout() {
      */
     private boolean mIsAttachedToWindow;
 
+    /**
+     * String resource for formatting content description of the default target.
+     */
+    private int mDefaultActionButtonContentDescription;
+
     /**
      * Create a new instance.
      *
@@ -259,7 +266,7 @@ public void setActivityChooserModel(ActivityChooserModel dataModel) {
      *
      * <strong>Note:</strong> Clients would like to set this drawable
      * as a clue about the action the chosen activity will perform. For
-     * example, if share activity is to be chosen the drawable should
+     * example, if a share activity is to be chosen the drawable should
      * give a clue that sharing is to be performed.
      *
      * @param drawable The drawable.
@@ -268,6 +275,21 @@ public void setExpandActivityOverflowButtonDrawable(Drawable drawable) {
         mExpandActivityOverflowButtonImage.setImageDrawable(drawable);
     }
 
+    /**
+     * Sets the content description for the button that expands the activity
+     * overflow list.
+     *
+     * description as a clue about the action performed by the button.
+     * For example, if a share activity is to be chosen the content
+     * description should be something like "Share with".
+     *
+     * @param resourceId The content description resource id.
+     */
+    public void setExpandActivityOverflowButtonContentDescription(int resourceId) {
+        CharSequence contentDescription = mContext.getString(resourceId);
+        mExpandActivityOverflowButtonImage.setContentDescription(contentDescription);
+    }
+
     /**
      * Set the provider hosting this view, if applicable.
      * @hide Internal use only
@@ -329,6 +351,8 @@ private void showPopupUnchecked(int maxActivityCount) {
             if (mProvider != null) {
                 mProvider.subUiVisibilityChanged(true);
             }
+            popupWindow.getListView().setContentDescription(mContext.getString(
+                    R.string.activitychooserview_choose_application));
         }
     }
 
@@ -430,6 +454,20 @@ public void setInitialActivityCount(int itemCount) {
         mInitialActivityCount = itemCount;
     }
 
+    /**
+     * Sets a content description of the default action button. This
+     * resource should be a string taking one formatting argument and
+     * will be used for formatting the content description of the button
+     * dynamically as the default target changes. For example, a resource
+     * pointing to the string "share with %1$s" will result in a content
+     * description "share with Bluetooth" for the Bluetooth activity.
+     *
+     * @param resourceId The resource id.
+     */
+    public void setDefaultActionButtonContentDescription(int resourceId) {
+        mDefaultActionButtonContentDescription = resourceId;
+    }
+
     /**
      * Gets the list popup window which is lazily initialized.
      *
@@ -465,6 +503,12 @@ private void updateAppearance() {
             ResolveInfo activity = mAdapter.getDefaultActivity();
             PackageManager packageManager = mContext.getPackageManager();
             mDefaultActivityButtonImage.setImageDrawable(activity.loadIcon(packageManager));
+            if (mDefaultActionButtonContentDescription != 0) {
+                CharSequence label = activity.loadLabel(packageManager);
+                String contentDescription = mContext.getString(
+                        mDefaultActionButtonContentDescription, label);
+                mDefaultActivityButton.setContentDescription(contentDescription);
+            }
         } else {
             mDefaultActivityButton.setVisibility(View.GONE);
         }

core/java/android/widget/ShareActionProvider.java

@@ -171,6 +171,12 @@ public View onCreateActionView() {
         activityChooserView.setExpandActivityOverflowButtonDrawable(drawable);
         activityChooserView.setProvider(this);
 
+        // Set content description.
+        activityChooserView.setDefaultActionButtonContentDescription(
+                R.string.shareactionprovider_share_with_application);
+        activityChooserView.setExpandActivityOverflowButtonContentDescription(
+                R.string.shareactionprovider_share_with);
+
         return activityChooserView;
     }
 

core/res/res/values/strings.xml

@@ -3182,6 +3182,16 @@
     <!-- Description of the Enter button in a KeyboardView. [CHAR LIMIT=NONE] -->
     <string name="keyboardview_keycode_enter">Enter</string>
 
+    <!-- ActivityChooserView - accessibility support -->
+    <!-- Description of the shwoing of a popup window with activities to choose from. [CHAR LIMIT=NONE] -->
+    <string name="activitychooserview_choose_application">Choose an application</string>
+
+    <!-- ShareActionProvider - accessibility support -->
+    <!-- Description of the choose target button in a ShareActionProvider (share UI). [CHAR LIMIT=NONE] -->
+    <string name="shareactionprovider_share_with">Share with</string>
+    <!-- Description of a share target (both in the list of such or the default share button) in a ShareActionProvider (share UI). [CHAR LIMIT=NONE] -->
+    <string name="shareactionprovider_share_with_application">Share with <xliff:g id="application_name" example="Bluetooth">%s</xliff:g></string>
+
     <!-- Slide lock screen -->
 
     <!-- Description of the sliding handle in the Slide unlock screen. [CHAR LIMIT=NONE] -->