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 17package com.android.gallery3d.ui; 18 19import com.android.gallery3d.R; 20 21import android.app.ActionBar; 22import android.content.Context; 23import android.view.Menu; 24import android.view.MenuItem; 25import android.view.View; 26import android.view.View.OnClickListener; 27import android.widget.Button; 28import android.widget.PopupMenu; 29import android.widget.PopupMenu.OnMenuItemClickListener; 30 31import java.util.ArrayList; 32 33public class CustomMenu implements OnMenuItemClickListener { 34 @SuppressWarnings("unused") 35 private static final String TAG = "FilterMenu"; 36 37 public static class DropDownMenu { 38 private Button mButton; 39 private PopupMenu mPopupMenu; 40 private Menu mMenu; 41 42 public DropDownMenu(Context context, Button button, int menuId, 43 OnMenuItemClickListener listener) { 44 mButton = button; 45 mButton.setBackgroundDrawable(context.getResources().getDrawable( 46 R.drawable.dropdown_normal_holo_dark)); 47 mPopupMenu = new PopupMenu(context, mButton); 48 mMenu = mPopupMenu.getMenu(); 49 mPopupMenu.getMenuInflater().inflate(menuId, mMenu); 50 mPopupMenu.setOnMenuItemClickListener(listener); 51 mButton.setOnClickListener(new OnClickListener() { 52 public void onClick(View v) { 53 mPopupMenu.show(); 54 } 55 }); 56 } 57 58 public MenuItem findItem(int id) { 59 return mMenu.findItem(id); 60 } 61 62 public void setTitle(CharSequence title) { 63 mButton.setText(title); 64 } 65 } 66 67 68 69 private Context mContext; 70 private ArrayList<DropDownMenu> mMenus; 71 private OnMenuItemClickListener mListener; 72 73 public CustomMenu(Context context) { 74 mContext = context; 75 mMenus = new ArrayList<DropDownMenu>(); 76 } 77 78 public DropDownMenu addDropDownMenu(Button button, int menuId) { 79 DropDownMenu menu = new DropDownMenu(mContext, button, menuId, this); 80 mMenus.add(menu); 81 return menu; 82 } 83 84 public void setOnMenuItemClickListener(OnMenuItemClickListener listener) { 85 mListener = listener; 86 } 87 88 public MenuItem findMenuItem(int id) { 89 MenuItem item = null; 90 for (DropDownMenu menu : mMenus) { 91 item = menu.findItem(id); 92 if (item != null) return item; 93 } 94 return item; 95 } 96 97 public void setMenuItemAppliedEnabled(int id, boolean applied, boolean enabled, 98 boolean updateTitle) { 99 MenuItem item = null; 100 for (DropDownMenu menu : mMenus) { 101 item = menu.findItem(id); 102 if (item != null) { 103 item.setCheckable(true); 104 item.setChecked(applied); 105 item.setEnabled(enabled); 106 if (updateTitle) { 107 menu.setTitle(item.getTitle()); 108 } 109 } 110 } 111 } 112 113 public void setMenuItemVisibility(int id, boolean visibility) { 114 MenuItem item = findMenuItem(id); 115 if (item != null) { 116 item.setVisible(visibility); 117 } 118 } 119 120 public boolean onMenuItemClick(MenuItem item) { 121 if (mListener != null) { 122 return mListener.onMenuItemClick(item); 123 } 124 return false; 125 } 126} 127