1/* 2 * Copyright (C) 2012 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 17package android.support.v7.internal.view.menu; 18 19import android.support.v4.internal.view.SupportMenuItem; 20import android.view.MenuItem; 21import android.view.SubMenu; 22 23import java.util.HashMap; 24import java.util.Iterator; 25 26abstract class BaseMenuWrapper<T> extends BaseWrapper<T> { 27 28 private HashMap<MenuItem, SupportMenuItem> mMenuItems; 29 30 private HashMap<SubMenu, SubMenu> mSubMenus; 31 32 BaseMenuWrapper(T object) { 33 super(object); 34 } 35 36 final SupportMenuItem getMenuItemWrapper(android.view.MenuItem frameworkItem) { 37 if (frameworkItem != null) { 38 // Instantiate HashMap if null 39 if (mMenuItems == null) { 40 mMenuItems = new HashMap<MenuItem, SupportMenuItem>(); 41 } 42 43 SupportMenuItem compatItem = mMenuItems.get(frameworkItem); 44 45 if (null == compatItem) { 46 compatItem = MenuWrapperFactory.createSupportMenuItemWrapper(frameworkItem); 47 mMenuItems.put(frameworkItem, compatItem); 48 } 49 50 return compatItem; 51 } 52 return null; 53 } 54 55 final SubMenu getSubMenuWrapper(android.view.SubMenu frameworkSubMenu) { 56 if (frameworkSubMenu != null) { 57 // Instantiate HashMap if null 58 if (mSubMenus == null) { 59 mSubMenus = new HashMap<android.view.SubMenu, SubMenu>(); 60 } 61 62 SubMenu compatSubMenu = mSubMenus.get(frameworkSubMenu); 63 64 if (null == compatSubMenu) { 65 compatSubMenu = MenuWrapperFactory.createSupportSubMenuWrapper(frameworkSubMenu); 66 mSubMenus.put(frameworkSubMenu, compatSubMenu); 67 } 68 return compatSubMenu; 69 } 70 return null; 71 } 72 73 74 final void internalClear() { 75 if (mMenuItems != null) { 76 mMenuItems.clear(); 77 } 78 if (mSubMenus != null) { 79 mSubMenus.clear(); 80 } 81 } 82 83 final void internalRemoveGroup(final int groupId) { 84 if (mMenuItems == null) { 85 return; 86 } 87 88 Iterator<android.view.MenuItem> iterator = mMenuItems.keySet().iterator(); 89 android.view.MenuItem menuItem; 90 91 while (iterator.hasNext()) { 92 menuItem = iterator.next(); 93 if (groupId == menuItem.getGroupId()) { 94 iterator.remove(); 95 } 96 } 97 } 98 99 final void internalRemoveItem(final int id) { 100 if (mMenuItems == null) { 101 return; 102 } 103 104 Iterator<android.view.MenuItem> iterator = mMenuItems.keySet().iterator(); 105 android.view.MenuItem menuItem; 106 107 while (iterator.hasNext()) { 108 menuItem = iterator.next(); 109 if (id == menuItem.getItemId()) { 110 iterator.remove(); 111 break; 112 } 113 } 114 } 115} 116