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Diffstat (limited to 'actionbarsherlock/src/com/actionbarsherlock/internal/view/menu/BaseMenuPresenter.java')
-rw-r--r-- | actionbarsherlock/src/com/actionbarsherlock/internal/view/menu/BaseMenuPresenter.java | 231 |
1 files changed, 0 insertions, 231 deletions
diff --git a/actionbarsherlock/src/com/actionbarsherlock/internal/view/menu/BaseMenuPresenter.java b/actionbarsherlock/src/com/actionbarsherlock/internal/view/menu/BaseMenuPresenter.java deleted file mode 100644 index 6da26f2ae..000000000 --- a/actionbarsherlock/src/com/actionbarsherlock/internal/view/menu/BaseMenuPresenter.java +++ /dev/null @@ -1,231 +0,0 @@ -/* - * Copyright (C) 2011 The Android Open Source Project - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - */ - -package com.actionbarsherlock.internal.view.menu; - -import java.util.ArrayList; -import android.content.Context; -import android.os.Build; -import android.view.LayoutInflater; -import android.view.View; -import android.view.ViewGroup; - -/** - * Base class for MenuPresenters that have a consistent container view and item - * views. Behaves similarly to an AdapterView in that existing item views will - * be reused if possible when items change. - */ -public abstract class BaseMenuPresenter implements MenuPresenter { - private static final boolean IS_HONEYCOMB = Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB; - - protected Context mSystemContext; - protected Context mContext; - protected MenuBuilder mMenu; - protected LayoutInflater mSystemInflater; - protected LayoutInflater mInflater; - private Callback mCallback; - - private int mMenuLayoutRes; - private int mItemLayoutRes; - - protected MenuView mMenuView; - - private int mId; - - /** - * Construct a new BaseMenuPresenter. - * - * @param context Context for generating system-supplied views - * @param menuLayoutRes Layout resource ID for the menu container view - * @param itemLayoutRes Layout resource ID for a single item view - */ - public BaseMenuPresenter(Context context, int menuLayoutRes, int itemLayoutRes) { - mSystemContext = context; - mSystemInflater = LayoutInflater.from(context); - mMenuLayoutRes = menuLayoutRes; - mItemLayoutRes = itemLayoutRes; - } - - @Override - public void initForMenu(Context context, MenuBuilder menu) { - mContext = context; - mInflater = LayoutInflater.from(mContext); - mMenu = menu; - } - - @Override - public MenuView getMenuView(ViewGroup root) { - if (mMenuView == null) { - mMenuView = (MenuView) mSystemInflater.inflate(mMenuLayoutRes, root, false); - mMenuView.initialize(mMenu); - updateMenuView(true); - } - - return mMenuView; - } - - /** - * Reuses item views when it can - */ - public void updateMenuView(boolean cleared) { - final ViewGroup parent = (ViewGroup) mMenuView; - if (parent == null) return; - - int childIndex = 0; - if (mMenu != null) { - mMenu.flagActionItems(); - ArrayList<MenuItemImpl> visibleItems = mMenu.getVisibleItems(); - final int itemCount = visibleItems.size(); - for (int i = 0; i < itemCount; i++) { - MenuItemImpl item = visibleItems.get(i); - if (shouldIncludeItem(childIndex, item)) { - final View convertView = parent.getChildAt(childIndex); - final MenuItemImpl oldItem = convertView instanceof MenuView.ItemView ? - ((MenuView.ItemView) convertView).getItemData() : null; - final View itemView = getItemView(item, convertView, parent); - if (item != oldItem) { - // Don't let old states linger with new data. - itemView.setPressed(false); - if (IS_HONEYCOMB) itemView.jumpDrawablesToCurrentState(); - } - if (itemView != convertView) { - addItemView(itemView, childIndex); - } - childIndex++; - } - } - } - - // Remove leftover views. - while (childIndex < parent.getChildCount()) { - if (!filterLeftoverView(parent, childIndex)) { - childIndex++; - } - } - } - - /** - * Add an item view at the given index. - * - * @param itemView View to add - * @param childIndex Index within the parent to insert at - */ - protected void addItemView(View itemView, int childIndex) { - final ViewGroup currentParent = (ViewGroup) itemView.getParent(); - if (currentParent != null) { - currentParent.removeView(itemView); - } - ((ViewGroup) mMenuView).addView(itemView, childIndex); - } - - /** - * Filter the child view at index and remove it if appropriate. - * @param parent Parent to filter from - * @param childIndex Index to filter - * @return true if the child view at index was removed - */ - protected boolean filterLeftoverView(ViewGroup parent, int childIndex) { - parent.removeViewAt(childIndex); - return true; - } - - public void setCallback(Callback cb) { - mCallback = cb; - } - - /** - * Create a new item view that can be re-bound to other item data later. - * - * @return The new item view - */ - public MenuView.ItemView createItemView(ViewGroup parent) { - return (MenuView.ItemView) mSystemInflater.inflate(mItemLayoutRes, parent, false); - } - - /** - * Prepare an item view for use. See AdapterView for the basic idea at work here. - * This may require creating a new item view, but well-behaved implementations will - * re-use the view passed as convertView if present. The returned view will be populated - * with data from the item parameter. - * - * @param item Item to present - * @param convertView Existing view to reuse - * @param parent Intended parent view - use for inflation. - * @return View that presents the requested menu item - */ - public View getItemView(MenuItemImpl item, View convertView, ViewGroup parent) { - MenuView.ItemView itemView; - if (convertView instanceof MenuView.ItemView) { - itemView = (MenuView.ItemView) convertView; - } else { - itemView = createItemView(parent); - } - bindItemView(item, itemView); - return (View) itemView; - } - - /** - * Bind item data to an existing item view. - * - * @param item Item to bind - * @param itemView View to populate with item data - */ - public abstract void bindItemView(MenuItemImpl item, MenuView.ItemView itemView); - - /** - * Filter item by child index and item data. - * - * @param childIndex Indended presentation index of this item - * @param item Item to present - * @return true if this item should be included in this menu presentation; false otherwise - */ - public boolean shouldIncludeItem(int childIndex, MenuItemImpl item) { - return true; - } - - public void onCloseMenu(MenuBuilder menu, boolean allMenusAreClosing) { - if (mCallback != null) { - mCallback.onCloseMenu(menu, allMenusAreClosing); - } - } - - public boolean onSubMenuSelected(SubMenuBuilder menu) { - if (mCallback != null) { - return mCallback.onOpenSubMenu(menu); - } - return false; - } - - public boolean flagActionItems() { - return false; - } - - public boolean expandItemActionView(MenuBuilder menu, MenuItemImpl item) { - return false; - } - - public boolean collapseItemActionView(MenuBuilder menu, MenuItemImpl item) { - return false; - } - - public int getId() { - return mId; - } - - public void setId(int id) { - mId = id; - } -} |