Improved layout of contact filter view

Also, no longer showing the down-arrow when there
is no filter or only one filter.

Change-Id: Ie9bbb7aa279ff2013e4c24ca8f302d864679c35c
diff --git a/res/drawable-hdpi/cab_divider_holo_light.png b/res/drawable-hdpi/cab_divider_holo_light.png
new file mode 100644
index 0000000..ecaa019
--- /dev/null
+++ b/res/drawable-hdpi/cab_divider_holo_light.png
Binary files differ
diff --git a/res/drawable-mdpi/cab_divider_holo_light.png b/res/drawable-mdpi/cab_divider_holo_light.png
new file mode 100644
index 0000000..4a77a85
--- /dev/null
+++ b/res/drawable-mdpi/cab_divider_holo_light.png
Binary files differ
diff --git a/res/layout/navigation_bar.xml b/res/layout/navigation_bar.xml
index 08070a7..b2c8fa8 100644
--- a/res/layout/navigation_bar.xml
+++ b/res/layout/navigation_bar.xml
@@ -21,45 +21,57 @@
     android:layout_height="match_parent"
     android:orientation="horizontal">
 
-    <FrameLayout
+    <LinearLayout
+        xmlns:android="http://schemas.android.com/apk/res/android"
+        android:id="@+id/filter_container"
         android:layout_width="wrap_content"
         android:layout_height="match_parent"
-        android:paddingRight="10dip"
-        android:minWidth="240dip"
-        android:background="@drawable/filter_selector_background">
-        <TextView
-            android:id="@+id/search_label"
+        android:orientation="horizontal"
+        android:layout_marginLeft="8dip">
+        <FrameLayout
             android:layout_width="wrap_content"
             android:layout_height="match_parent"
-            android:text="@string/search_label"
-            android:gravity="center_vertical" />
-
-        <view
-            class="com.android.contacts.list.ContactListFilterView"
-            android:id="@+id/filter_view"
-            android:layout_height="match_parent"
-            android:layout_width="match_parent"
-            android:gravity="center_vertical">
-
+            android:minWidth="220dip"
+            android:background="@drawable/filter_selector_background">
             <TextView
-                android:id="@+id/label"
+                android:id="@+id/search_label"
                 android:layout_width="wrap_content"
-                android:layout_height="wrap_content"
-                android:layout_marginLeft="8dip"
-                android:textAppearance="?android:attr/textAppearanceMedium"
+                android:layout_height="match_parent"
                 android:gravity="center_vertical"
-                android:ellipsize="end" />
+                android:textAppearance="?android:attr/textAppearanceMedium"
+                android:text="@string/search_label" />
 
-            <ImageView
-                android:layout_width="wrap_content"
-                android:layout_height="wrap_content"
-                android:layout_marginLeft="8dip"
-                android:layout_gravity="bottom"
-                android:src="@drawable/filter_selector_corner" />
-        </view>
+            <view
+                class="com.android.contacts.list.ContactListFilterView"
+                android:id="@+id/filter_view"
+                android:layout_height="match_parent"
+                android:layout_width="wrap_content">
+                <TextView
+                    android:id="@+id/label"
+                    android:layout_height="match_parent"
+                    android:layout_width="wrap_content"
+                    android:gravity="center_vertical"
+                    android:textAppearance="?android:attr/textAppearanceMedium"
+                    android:ellipsize="end" />
+            </view>
+        </FrameLayout>
 
-    </FrameLayout>
+        <ImageView
+            android:id="@+id/filter_indicator"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_marginLeft="8dip"
+            android:layout_marginBottom="13dip"
+            android:layout_gravity="bottom"
+            android:src="@drawable/filter_selector_corner" />
+    </LinearLayout>
 
+    <View
+        android:layout_width="3dip"
+        android:layout_height="wrap_content"
+        android:layout_marginLeft="7dip"
+        android:layout_marginRight="7dip"
+        android:background="@drawable/cab_divider_holo_light" />
     <view
         class="android.widget.SearchView"
         android:id="@+id/search_view"
diff --git a/res/values/strings.xml b/res/values/strings.xml
index 960df1e..681b8db 100644
--- a/res/values/strings.xml
+++ b/res/values/strings.xml
@@ -1321,7 +1321,7 @@
     <string name="contact_directory_account_description">from <xliff:g id="type" example="Corporate Directory">%1$s</xliff:g> (<xliff:g id="name" example="me@acme.com">%2$s</xliff:g>)</string>
 
     <!-- The label displayed in the Contacts action bar when in search mode [CHAR LIMIT=64] -->
-    <string name="search_label">Searching all contact</string>
+    <string name="search_label">Searching all contacts</string>
 
     <!-- The label in section header in the contact list for a contact directory [CHAR LIMIT=128] -->
     <string name="directory_search_label">Directory</string>
diff --git a/res/values/styles.xml b/res/values/styles.xml
index e0ac68e..7c2fa78 100644
--- a/res/values/styles.xml
+++ b/res/values/styles.xml
@@ -188,7 +188,7 @@
         <item name="android:layout_width">match_parent</item>
         <item name="android:layout_height">match_parent</item>
     </style>
-    
+
     <style name="CustomContactListFilterView" parent="CustomContactListFilterTheme">
         <item name="android:layout_width">match_parent</item>
         <item name="android:layout_height">match_parent</item>
diff --git a/src/com/android/contacts/activities/ActionBarAdapter.java b/src/com/android/contacts/activities/ActionBarAdapter.java
index ec36356..a5d1114 100644
--- a/src/com/android/contacts/activities/ActionBarAdapter.java
+++ b/src/com/android/contacts/activities/ActionBarAdapter.java
@@ -18,6 +18,7 @@
 
 import com.android.contacts.R;
 import com.android.contacts.list.ContactListFilterController;
+import com.android.contacts.list.ContactListFilterController.ContactListFilterListener;
 import com.android.contacts.list.ContactListFilterView;
 import com.android.contacts.list.ContactsRequest;
 
@@ -35,7 +36,8 @@
 /**
  * Adapter for the action bar at the top of the Contacts activity.
  */
-public class ActionBarAdapter implements OnQueryChangeListener, OnCloseListener {
+public class ActionBarAdapter
+        implements OnQueryChangeListener, OnCloseListener, ContactListFilterListener {
 
     public interface Listener {
         void onAction();
@@ -60,6 +62,9 @@
 
     private Listener mListener;
     private ContactListFilterView mFilterView;
+    private View mFilterIndicator;
+    private ContactListFilterController mFilterController;
+    private View mFilterContainer;
 
     public ActionBarAdapter(Context context) {
         mContext = context;
@@ -80,16 +85,19 @@
         mNavigationBar = LayoutInflater.from(mContext).inflate(R.layout.navigation_bar, null);
         actionBar.setCustomNavigationMode(mNavigationBar);
 
+        mFilterContainer = mNavigationBar.findViewById(R.id.filter_container);
         mFilterView = (ContactListFilterView) mNavigationBar.findViewById(R.id.filter_view);
         mSearchLabel = (TextView) mNavigationBar.findViewById(R.id.search_label);
+        mFilterIndicator = mNavigationBar.findViewById(R.id.filter_indicator);
         mSearchView = (SearchView) mNavigationBar.findViewById(R.id.search_view);
+
         mSearchView.setIconifiedByDefault(false);
         mSearchView.setEnabled(false);
         mSearchView.setOnQueryChangeListener(this);
         mSearchView.setOnCloseListener(this);
         mSearchView.setQuery(mQueryString, false);
 
-        updateVisibility();
+        update();
     }
 
     public void setListener(Listener listener) {
@@ -97,7 +105,9 @@
     }
 
     public void setContactListFilterController(ContactListFilterController controller) {
-        controller.setFilterSpinner(mFilterView);
+        mFilterController = controller;
+        mFilterController.setAnchor(mFilterContainer);
+        mFilterController.addListener(this);
     }
 
     public boolean isSearchMode() {
@@ -107,7 +117,7 @@
     public void setSearchMode(boolean flag) {
         if (mSearchMode != flag) {
             mSearchMode = flag;
-            updateVisibility();
+            update();
             if (mListener != null) {
                 mListener.onAction();
             }
@@ -123,13 +133,21 @@
         mSearchView.setQuery(query, false);
     }
 
-    public void updateVisibility() {
+    public void update() {
         if (mSearchMode) {
             mSearchLabel.setVisibility(View.VISIBLE);
             mFilterView.setVisibility(View.GONE);
+            mFilterIndicator.setVisibility(View.INVISIBLE);
         } else {
             mSearchLabel.setVisibility(View.GONE);
             mFilterView.setVisibility(View.VISIBLE);
+            boolean showIndicator = false;
+            if (mFilterController != null && mFilterController.isLoaded()) {
+                mFilterView.setContactListFilter(mFilterController.getFilter());
+                mFilterView.bindView(false);
+                showIndicator = mFilterController.getFilterList().size() > 1;
+            }
+            mFilterIndicator.setVisibility(showIndicator ? View.VISIBLE : View.INVISIBLE);
         }
     }
 
@@ -137,7 +155,7 @@
     public boolean onQueryTextChanged(String queryString) {
         mQueryString = queryString;
         mSearchMode = !TextUtils.isEmpty(queryString);
-        updateVisibility();
+        update();
         if (mListener != null) {
             mListener.onAction();
         }
@@ -181,4 +199,18 @@
             outState.putParcelable(KEY_MODE_SEARCH, mSavedStateForSearchMode);
         }
     }
+
+    @Override
+    public void onContactListFiltersLoaded() {
+        update();
+    }
+
+    @Override
+    public void onContactListFilterChanged() {
+        update();
+    }
+
+    @Override
+    public void onContactListFilterCustomizationRequest() {
+    }
 }
diff --git a/src/com/android/contacts/list/ContactListFilterController.java b/src/com/android/contacts/list/ContactListFilterController.java
index 2b406a3..6553315 100644
--- a/src/com/android/contacts/list/ContactListFilterController.java
+++ b/src/com/android/contacts/list/ContactListFilterController.java
@@ -64,13 +64,13 @@
 
     private Context mContext;
     private LoaderManager mLoaderManager;
-    private ContactListFilterListener mListener;
+    private List<ContactListFilterListener> mListeners = new ArrayList<ContactListFilterListener>();
     private ListPopupWindow mPopup;
     private int mPopupWidth = -1;
     private SparseArray<ContactListFilter> mFilters;
     private ArrayList<ContactListFilter> mFilterList;
     private int mNextFilterId = 1;
-    private ContactListFilterView mFilterView;
+    private View mAnchor;
     private FilterListAdapter mFilterListAdapter;
     private ContactListFilter mFilter;
     private boolean mFiltersLoaded;
@@ -89,13 +89,17 @@
         mLoaderManager = activity.getLoaderManager();
     }
 
-    public void setListener(ContactListFilterListener listener) {
-        mListener = listener;
+    public void addListener(ContactListFilterListener listener) {
+        mListeners.add(listener);
     }
 
-    public void setFilterSpinner(ContactListFilterView filterSpinner) {
-        mFilterView = filterSpinner;
-        mFilterView.setOnClickListener(this);
+    public void removeListener(ContactListFilterListener listener) {
+        mListeners.remove(listener);
+    }
+
+    public void setAnchor(View anchor) {
+        mAnchor = anchor;
+        mAnchor.setOnClickListener(this);
     }
 
     public ContactListFilter getFilter() {
@@ -202,13 +206,11 @@
 
         if (filterChanged) {
             mFiltersLoaded = true;
-            mListener.onContactListFilterChanged();
+            notifyContactListFilterChanged();
         } else if (!mFiltersLoaded) {
             mFiltersLoaded = true;
-            mListener.onContactListFiltersLoaded();
+            notifyContacListFiltersLoaded();
         }
-
-        updateFilterView();
     }
 
     public void postDelayedRefresh() {
@@ -240,9 +242,8 @@
         if (!filter.equals(mFilter)) {
             mFilter = filter;
             ContactListFilter.storeToPreferences(getSharedPreferences(), mFilter);
-            updateFilterView();
-            if (mListener != null) {
-                mListener.onContactListFilterChanged();
+            if (mListeners != null) {
+               notifyContactListFilterChanged();
             }
         }
     }
@@ -260,14 +261,14 @@
             a.recycle();
 
             if (mPopupWidth == -1) {
-                mPopupWidth = mFilterView.getWidth();
+                mPopupWidth = mAnchor.getWidth();
             }
         }
 
         mPopup = new ListPopupWindow(mContext, null);
         mPopup.setWidth(mPopupWidth);
         mPopup.setAdapter(mFilterListAdapter);
-        mPopup.setAnchorView(mFilterView);
+        mPopup.setAnchorView(mAnchor);
         mPopup.setOnItemClickListener(this);
         mPopup.setModal(true);
         mPopup.show();
@@ -277,7 +278,7 @@
     public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
         mPopup.dismiss();
         if (mFilters.get((int) id).filterType == ContactListFilter.FILTER_TYPE_CUSTOM) {
-            mListener.onContactListFilterCustomizationRequest();
+            notifyContactListFilterCustomizationRequest();
         } else {
             setContactListFilter((int) id);
         }
@@ -285,18 +286,28 @@
 
     public void selectCustomFilter() {
         mFilter = new ContactListFilter(ContactListFilter.FILTER_TYPE_CUSTOM);
-        updateFilterView();
-        mListener.onContactListFilterChanged();
+        notifyContactListFilterChanged();
     }
 
     private ContactListFilter getDefaultFilter() {
         return mFilters.size() > 0 ? mFilters.valueAt(0) : null;
     }
 
-    protected void updateFilterView() {
-        if (mFiltersLoaded) {
-            mFilterView.setContactListFilter(mFilter);
-            mFilterView.bindView(false);
+    private void notifyContacListFiltersLoaded() {
+        for (ContactListFilterListener listener : mListeners) {
+            listener.onContactListFiltersLoaded();
+        }
+    }
+
+    private void notifyContactListFilterChanged() {
+        for (ContactListFilterListener listener : mListeners) {
+            listener.onContactListFilterChanged();
+        }
+    }
+
+    private void notifyContactListFilterCustomizationRequest() {
+        for (ContactListFilterListener listener : mListeners) {
+            listener.onContactListFilterCustomizationRequest();
         }
     }
 
diff --git a/src/com/android/contacts/list/DefaultContactBrowseListFragment.java b/src/com/android/contacts/list/DefaultContactBrowseListFragment.java
index 4d66dd2..bd43afc 100644
--- a/src/com/android/contacts/list/DefaultContactBrowseListFragment.java
+++ b/src/com/android/contacts/list/DefaultContactBrowseListFragment.java
@@ -57,7 +57,15 @@
 
     public void setContactListFilterController(ContactListFilterController filterController) {
         mFilterController = filterController;
-        mFilterController.setListener(this);
+        mFilterController.addListener(this);
+    }
+
+    @Override
+    public void onDetach() {
+        if (mFilterController != null) {
+            mFilterController.removeListener(this);
+        }
+        super.onDetach();
     }
 
     @Override