Adam Powell | 696cba5 | 2011-03-29 10:38:16 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2011 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.internal.view.menu; |
| 17 | |
| 18 | import com.android.internal.view.menu.MenuView.ItemView; |
| 19 | |
| 20 | import android.content.Context; |
| 21 | import android.os.Bundle; |
| 22 | import android.os.Parcelable; |
| 23 | import android.util.SparseArray; |
| 24 | import android.view.ContextThemeWrapper; |
| 25 | import android.view.LayoutInflater; |
| 26 | import android.view.View; |
| 27 | import android.view.ViewGroup; |
| 28 | |
| 29 | import java.util.ArrayList; |
| 30 | |
| 31 | /** |
| 32 | * MenuPresenter for the classic "six-pack" icon menu. |
| 33 | */ |
| 34 | public class IconMenuPresenter extends BaseMenuPresenter { |
| 35 | private IconMenuItemView mMoreView; |
| 36 | private int mMaxItems = -1; |
| 37 | |
| 38 | private static final String VIEWS_TAG = "android:menu:icon"; |
| 39 | |
| 40 | public IconMenuPresenter() { |
| 41 | super(com.android.internal.R.layout.icon_menu_layout, |
| 42 | com.android.internal.R.layout.icon_menu_item_layout); |
| 43 | } |
| 44 | |
| 45 | @Override |
| 46 | public void initForMenu(Context context, MenuBuilder menu) { |
| 47 | mContext = new ContextThemeWrapper(context, com.android.internal.R.style.Theme_IconMenu); |
| 48 | mInflater = LayoutInflater.from(mContext); |
| 49 | mMenu = menu; |
| 50 | mMaxItems = -1; |
| 51 | } |
| 52 | |
| 53 | @Override |
| 54 | public void bindItemView(MenuItemImpl item, ItemView itemView) { |
| 55 | final IconMenuItemView view = (IconMenuItemView) itemView; |
| 56 | view.setItemData(item); |
| 57 | |
| 58 | view.initialize(item.getTitleForItemView(view), item.getIcon()); |
| 59 | |
| 60 | view.setVisibility(item.isVisible() ? View.VISIBLE : View.GONE); |
| 61 | view.setEnabled(view.isEnabled()); |
| 62 | view.setLayoutParams(view.getTextAppropriateLayoutParams()); |
| 63 | } |
| 64 | |
| 65 | @Override |
| 66 | public boolean shouldIncludeItem(int childIndex, MenuItemImpl item) { |
| 67 | final ArrayList<MenuItemImpl> itemsToShow = mMenu.getNonActionItems(); |
| 68 | boolean fits = (itemsToShow.size() == mMaxItems && childIndex < mMaxItems) || |
| 69 | childIndex < mMaxItems - 1; |
| 70 | return fits && !item.isActionButton(); |
| 71 | } |
| 72 | |
| 73 | @Override |
| 74 | protected void addItemView(View itemView, int childIndex) { |
| 75 | final IconMenuItemView v = (IconMenuItemView) itemView; |
| 76 | final IconMenuView parent = (IconMenuView) mMenuView; |
| 77 | |
| 78 | v.setIconMenuView(parent); |
| 79 | v.setItemInvoker(parent); |
| 80 | v.setBackgroundDrawable(parent.getItemBackgroundDrawable()); |
| 81 | super.addItemView(itemView, childIndex); |
| 82 | } |
| 83 | |
| 84 | @Override |
| 85 | public boolean onSubMenuSelected(SubMenuBuilder subMenu) { |
| 86 | if (!subMenu.hasVisibleItems()) return false; |
| 87 | |
| 88 | // The window manager will give us a token. |
| 89 | new MenuDialogHelper(subMenu).show(null); |
| 90 | super.onSubMenuSelected(subMenu); |
| 91 | return true; |
| 92 | } |
| 93 | |
| 94 | @Override |
| 95 | public void updateMenuView(boolean cleared) { |
| 96 | final IconMenuView menuView = (IconMenuView) mMenuView; |
| 97 | if (mMaxItems < 0) mMaxItems = menuView.getMaxItems(); |
| 98 | final ArrayList<MenuItemImpl> itemsToShow = mMenu.getNonActionItems(); |
| 99 | final boolean needsMore = itemsToShow.size() > mMaxItems; |
| 100 | super.updateMenuView(cleared); |
| 101 | |
| 102 | if (needsMore && (mMoreView == null || mMoreView.getParent() != menuView)) { |
| 103 | if (mMoreView == null) { |
| 104 | mMoreView = menuView.createMoreItemView(); |
| 105 | mMoreView.setBackgroundDrawable(menuView.getItemBackgroundDrawable()); |
| 106 | } |
| 107 | menuView.addView(mMoreView); |
| 108 | } else if (!needsMore && mMoreView != null) { |
| 109 | menuView.removeView(mMoreView); |
| 110 | } |
| 111 | |
| 112 | menuView.setNumActualItemsShown(needsMore ? mMaxItems - 1 : itemsToShow.size()); |
| 113 | } |
| 114 | |
| 115 | @Override |
| 116 | protected boolean filterLeftoverView(ViewGroup parent, int childIndex) { |
| 117 | if (parent.getChildAt(childIndex) != mMoreView) { |
| 118 | return super.filterLeftoverView(parent, childIndex); |
| 119 | } |
| 120 | return false; |
| 121 | } |
| 122 | |
| 123 | public int getNumActualItemsShown() { |
| 124 | return ((IconMenuView) mMenuView).getNumActualItemsShown(); |
| 125 | } |
| 126 | |
| 127 | public void saveHierarchyState(Bundle outState) { |
| 128 | SparseArray<Parcelable> viewStates = new SparseArray<Parcelable>(); |
| 129 | if (mMenuView != null) { |
| 130 | ((View) mMenuView).saveHierarchyState(viewStates); |
| 131 | } |
| 132 | outState.putSparseParcelableArray(VIEWS_TAG, viewStates); |
| 133 | } |
| 134 | |
| 135 | public void restoreHierarchyState(Bundle inState) { |
| 136 | SparseArray<Parcelable> viewStates = inState.getSparseParcelableArray(VIEWS_TAG); |
| 137 | if (viewStates != null) { |
| 138 | ((View) mMenuView).restoreHierarchyState(viewStates); |
| 139 | } |
| 140 | } |
| 141 | } |