1 /* 2 * Copyright (C) 2010 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 package com.android.quicksearchbox.ui; 17 18 import android.content.Context; 19 import android.view.View; 20 import android.view.ViewGroup; 21 22 import com.android.quicksearchbox.Suggestion; 23 import com.android.quicksearchbox.SuggestionCursor; 24 25 import java.util.Collection; 26 import java.util.HashSet; 27 import java.util.LinkedList; 28 29 /** 30 * Suggestion view factory for Google suggestions. 31 */ 32 public class DefaultSuggestionViewFactory implements SuggestionViewFactory { 33 34 private final LinkedList<SuggestionViewFactory> mFactories 35 = new LinkedList<SuggestionViewFactory>(); 36 private final SuggestionViewFactory mDefaultFactory; 37 private HashSet<String> mViewTypes; 38 DefaultSuggestionViewFactory(Context context)39 public DefaultSuggestionViewFactory(Context context) { 40 mDefaultFactory = new DefaultSuggestionView.Factory(context); 41 addFactory(new WebSearchSuggestionView.Factory(context)); 42 } 43 44 /** 45 * Must only be called from the constructor 46 */ addFactory(SuggestionViewFactory factory)47 protected final void addFactory(SuggestionViewFactory factory) { 48 mFactories.addFirst(factory); 49 } 50 51 @Override getSuggestionViewTypes()52 public Collection<String> getSuggestionViewTypes() { 53 if (mViewTypes == null) { 54 mViewTypes = new HashSet<String>(); 55 mViewTypes.addAll(mDefaultFactory.getSuggestionViewTypes()); 56 for (SuggestionViewFactory factory : mFactories) { 57 mViewTypes.addAll(factory.getSuggestionViewTypes()); 58 } 59 } 60 return mViewTypes; 61 } 62 63 @Override getView(SuggestionCursor suggestion, String userQuery, View convertView, ViewGroup parent)64 public View getView(SuggestionCursor suggestion, String userQuery, 65 View convertView, ViewGroup parent) { 66 for (SuggestionViewFactory factory : mFactories) { 67 if (factory.canCreateView(suggestion)) { 68 return factory.getView(suggestion, userQuery, convertView, parent); 69 } 70 } 71 return mDefaultFactory.getView(suggestion, userQuery, convertView, parent); 72 } 73 74 @Override getViewType(Suggestion suggestion)75 public String getViewType(Suggestion suggestion) { 76 for (SuggestionViewFactory factory : mFactories) { 77 if (factory.canCreateView(suggestion)) { 78 return factory.getViewType(suggestion); 79 } 80 } 81 return mDefaultFactory.getViewType(suggestion); 82 } 83 84 @Override canCreateView(Suggestion suggestion)85 public boolean canCreateView(Suggestion suggestion) { 86 return true; 87 } 88 89 } 90