| /* |
| * 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.android.internal.view.menu; |
| |
| import com.android.internal.view.menu.MenuView.ItemView; |
| |
| import android.content.Context; |
| import android.os.Bundle; |
| import android.os.Parcelable; |
| import android.util.SparseArray; |
| import android.view.ContextThemeWrapper; |
| import android.view.LayoutInflater; |
| import android.view.MenuItem; |
| import android.view.View; |
| import android.view.ViewGroup; |
| |
| import java.util.ArrayList; |
| |
| /** |
| * MenuPresenter for the classic "six-pack" icon menu. |
| */ |
| public class IconMenuPresenter extends BaseMenuPresenter { |
| private IconMenuItemView mMoreView; |
| private int mMaxItems = -1; |
| |
| int mOpenSubMenuId; |
| SubMenuPresenterCallback mSubMenuPresenterCallback = new SubMenuPresenterCallback(); |
| MenuDialogHelper mOpenSubMenu; |
| |
| private static final String VIEWS_TAG = "android:menu:icon"; |
| private static final String OPEN_SUBMENU_KEY = "android:menu:icon:submenu"; |
| |
| public IconMenuPresenter() { |
| super(com.android.internal.R.layout.icon_menu_layout, |
| com.android.internal.R.layout.icon_menu_item_layout); |
| } |
| |
| @Override |
| public void initForMenu(Context context, MenuBuilder menu) { |
| mContext = new ContextThemeWrapper(context, com.android.internal.R.style.Theme_IconMenu); |
| mInflater = LayoutInflater.from(mContext); |
| mMenu = menu; |
| mMaxItems = -1; |
| } |
| |
| @Override |
| public void bindItemView(MenuItemImpl item, ItemView itemView) { |
| final IconMenuItemView view = (IconMenuItemView) itemView; |
| view.setItemData(item); |
| |
| view.initialize(item.getTitleForItemView(view), item.getIcon()); |
| |
| view.setVisibility(item.isVisible() ? View.VISIBLE : View.GONE); |
| view.setEnabled(view.isEnabled()); |
| view.setLayoutParams(view.getTextAppropriateLayoutParams()); |
| } |
| |
| @Override |
| public boolean shouldIncludeItem(int childIndex, MenuItemImpl item) { |
| final ArrayList<MenuItemImpl> itemsToShow = mMenu.getNonActionItems(); |
| boolean fits = (itemsToShow.size() == mMaxItems && childIndex < mMaxItems) || |
| childIndex < mMaxItems - 1; |
| return fits && !item.isActionButton(); |
| } |
| |
| @Override |
| protected void addItemView(View itemView, int childIndex) { |
| final IconMenuItemView v = (IconMenuItemView) itemView; |
| final IconMenuView parent = (IconMenuView) mMenuView; |
| |
| v.setIconMenuView(parent); |
| v.setItemInvoker(parent); |
| v.setBackgroundDrawable(parent.getItemBackgroundDrawable()); |
| super.addItemView(itemView, childIndex); |
| } |
| |
| @Override |
| public boolean onSubMenuSelected(SubMenuBuilder subMenu) { |
| if (!subMenu.hasVisibleItems()) return false; |
| |
| // The window manager will give us a token. |
| MenuDialogHelper helper = new MenuDialogHelper(subMenu); |
| helper.setPresenterCallback(mSubMenuPresenterCallback); |
| helper.show(null); |
| mOpenSubMenu = helper; |
| mOpenSubMenuId = subMenu.getItem().getItemId(); |
| super.onSubMenuSelected(subMenu); |
| return true; |
| } |
| |
| @Override |
| public void updateMenuView(boolean cleared) { |
| final IconMenuView menuView = (IconMenuView) mMenuView; |
| if (mMaxItems < 0) mMaxItems = menuView.getMaxItems(); |
| final ArrayList<MenuItemImpl> itemsToShow = mMenu.getNonActionItems(); |
| final boolean needsMore = itemsToShow.size() > mMaxItems; |
| super.updateMenuView(cleared); |
| |
| if (needsMore && (mMoreView == null || mMoreView.getParent() != menuView)) { |
| if (mMoreView == null) { |
| mMoreView = menuView.createMoreItemView(); |
| mMoreView.setBackgroundDrawable(menuView.getItemBackgroundDrawable()); |
| } |
| menuView.addView(mMoreView); |
| } else if (!needsMore && mMoreView != null) { |
| menuView.removeView(mMoreView); |
| } |
| |
| menuView.setNumActualItemsShown(needsMore ? mMaxItems - 1 : itemsToShow.size()); |
| } |
| |
| @Override |
| protected boolean filterLeftoverView(ViewGroup parent, int childIndex) { |
| if (parent.getChildAt(childIndex) != mMoreView) { |
| return super.filterLeftoverView(parent, childIndex); |
| } |
| return false; |
| } |
| |
| public int getNumActualItemsShown() { |
| return ((IconMenuView) mMenuView).getNumActualItemsShown(); |
| } |
| |
| public void saveHierarchyState(Bundle outState) { |
| SparseArray<Parcelable> viewStates = new SparseArray<Parcelable>(); |
| if (mMenuView != null) { |
| ((View) mMenuView).saveHierarchyState(viewStates); |
| } |
| outState.putSparseParcelableArray(VIEWS_TAG, viewStates); |
| } |
| |
| public void restoreHierarchyState(Bundle inState) { |
| SparseArray<Parcelable> viewStates = inState.getSparseParcelableArray(VIEWS_TAG); |
| if (viewStates != null) { |
| ((View) mMenuView).restoreHierarchyState(viewStates); |
| } |
| int subMenuId = inState.getInt(OPEN_SUBMENU_KEY, 0); |
| if (subMenuId > 0 && mMenu != null) { |
| MenuItem item = mMenu.findItem(subMenuId); |
| if (item != null) { |
| onSubMenuSelected((SubMenuBuilder) item.getSubMenu()); |
| } |
| } |
| } |
| |
| @Override |
| public Parcelable onSaveInstanceState() { |
| if (mMenuView == null) { |
| return null; |
| } |
| |
| Bundle state = new Bundle(); |
| saveHierarchyState(state); |
| if (mOpenSubMenuId > 0) { |
| state.putInt(OPEN_SUBMENU_KEY, mOpenSubMenuId); |
| } |
| return state; |
| } |
| |
| @Override |
| public void onRestoreInstanceState(Parcelable state) { |
| restoreHierarchyState((Bundle) state); |
| } |
| |
| class SubMenuPresenterCallback implements MenuPresenter.Callback { |
| @Override |
| public void onCloseMenu(MenuBuilder menu, boolean allMenusAreClosing) { |
| mOpenSubMenuId = 0; |
| if (mOpenSubMenu != null) { |
| mOpenSubMenu.dismiss(); |
| mOpenSubMenu = null; |
| } |
| } |
| |
| @Override |
| public boolean onOpenSubMenu(MenuBuilder subMenu) { |
| mOpenSubMenuId = ((SubMenuBuilder) subMenu).getItem().getItemId(); |
| return false; |
| } |
| |
| } |
| } |