am 18fdcb6d: Display a Google logo in the search widget if Google is the chosen web search provider. Listen for broadcasts of that setting changing to correctly update the widget as appropriate.

Merge commit '18fdcb6de7e1268ed6e5c7664b2c838fe9d494ae'

* commit '18fdcb6de7e1268ed6e5c7664b2c838fe9d494ae':
  Display a Google logo in the search widget if Google is the chosen web

src/com/android/launcher/Search.java

@@ -16,13 +16,20 @@
 
 package com.android.launcher;
 
+import android.app.SearchManager;
 import android.content.ActivityNotFoundException;
+import android.content.BroadcastReceiver;
+import android.content.ComponentName;
 import android.content.Context;
 import android.content.Intent;
+import android.content.IntentFilter;
 import android.content.pm.PackageManager;
 import android.content.pm.ResolveInfo;
 import android.content.res.Configuration;
+import android.graphics.drawable.Drawable;
 import android.os.Bundle;
+import android.server.search.SearchableInfo;
+import android.server.search.Searchables;
 import android.util.AttributeSet;
 import android.util.Log;
 import android.view.KeyEvent;
@@ -68,6 +75,10 @@ public class Search extends LinearLayout
 
     // For voice searching
     private Intent mVoiceSearchIntent;
+    
+    private Drawable mGooglePlaceholder;
+    
+    private SearchManager mSearchManager;
 
     /**
      * Used to inflate the Workspace from XML.
@@ -129,6 +140,8 @@ public class Search extends LinearLayout
         mVoiceSearchIntent = new Intent(android.speech.RecognizerIntent.ACTION_WEB_SEARCH);
         mVoiceSearchIntent.putExtra(android.speech.RecognizerIntent.EXTRA_LANGUAGE_MODEL,
                 android.speech.RecognizerIntent.LANGUAGE_MODEL_WEB_SEARCH);
+        
+        mSearchManager = (SearchManager) getContext().getSystemService(Context.SEARCH_SERVICE);
     }
 
     /**
@@ -293,6 +306,10 @@ public class Search extends LinearLayout
 
         mSearchText = (TextView) findViewById(R.id.search_src_text);
         mVoiceButton = (ImageButton) findViewById(R.id.search_voice_btn);
+        
+        mGooglePlaceholder = getContext().getResources().getDrawable(R.drawable.placeholder_google);
+        mContext.registerReceiver(mBroadcastReceiver,
+                new IntentFilter(SearchManager.INTENT_ACTION_SEARCH_SETTINGS_CHANGED));
 
         mSearchText.setOnKeyListener(this);
 
@@ -304,6 +321,13 @@ public class Search extends LinearLayout
         mVoiceButton.setOnLongClickListener(this);
 
         configureVoiceSearchButton();
+        setUpTextField();
+    }
+    
+    @Override
+    public void onDetachedFromWindow() {
+        super.onDetachedFromWindow();
+        if (mBroadcastReceiver != null) getContext().unregisterReceiver(mBroadcastReceiver);
     }
 
     /**
@@ -323,6 +347,28 @@ public class Search extends LinearLayout
         // finally, set visible state of voice search button, as appropriate
         mVoiceButton.setVisibility(voiceSearchVisible ? View.VISIBLE : View.GONE);
     }
+    
+    /**
+     * Sets up the look of the text field. If Google is the chosen search provider, includes
+     * a Google logo as placeholder.
+     */
+    private void setUpTextField() {
+        boolean showGooglePlaceholder = false;
+        SearchableInfo webSearchSearchable = mSearchManager.getDefaultSearchableForWebSearch();
+        if (webSearchSearchable != null) {
+            ComponentName webSearchComponent = webSearchSearchable.getSearchActivity();
+            if (webSearchComponent != null) {
+                String componentString = webSearchComponent.flattenToShortString();
+                if (Searchables.ENHANCED_GOOGLE_SEARCH_COMPONENT_NAME.equals(componentString) ||
+                        Searchables.GOOGLE_SEARCH_COMPONENT_NAME.equals(componentString)) {
+                    showGooglePlaceholder = true;
+                }
+            }
+        }
+        
+        mSearchText.setCompoundDrawablesWithIntrinsicBounds(
+                showGooglePlaceholder ? mGooglePlaceholder : null, null, null, null);
+    }
 
     /**
      * Sets the {@link Launcher} that this gadget will call on to display the search dialog. 
@@ -330,6 +376,17 @@ public class Search extends LinearLayout
     public void setLauncher(Launcher launcher) {
         mLauncher = launcher;
     }
+        
+    // Broadcast receiver for web search provider change notifications
+    private BroadcastReceiver mBroadcastReceiver = new BroadcastReceiver() {
+        @Override
+        public void onReceive(Context context, Intent intent) {
+            String action = intent.getAction();
+            if (SearchManager.INTENT_ACTION_SEARCH_SETTINGS_CHANGED.equals(action)) {
+                setUpTextField();
+            }
+        }
+    };
 
     /** 
      * Moves the view to the top left corner of its parent.