package com.actionbarsherlock.internal.view.menu; import java.util.ArrayList; import org.holoeverywhere.LayoutInflater; import org.holoeverywhere.R; import org.holoeverywhere.app.ContextThemeWrapperPlus; import android.content.Context; import android.os.Bundle; import android.os.Parcelable; import android.util.SparseArray; import android.view.View; import android.view.ViewGroup; import android.widget.AdapterView; import android.widget.BaseAdapter; import android.widget.ListAdapter; public class ListMenuPresenter implements MenuPresenter, AdapterView.OnItemClickListener { private class MenuAdapter extends BaseAdapter { private int mExpandedIndex = -1; public MenuAdapter() { findExpandedIndex(); } void findExpandedIndex() { final MenuItemImpl expandedItem = mMenu.getExpandedItem(); if (expandedItem != null) { final ArrayList<MenuItemImpl> items = mMenu.getNonActionItems(); final int count = items.size(); for (int i = 0; i < count; i++) { final MenuItemImpl item = items.get(i); if (item == expandedItem) { mExpandedIndex = i; return; } } } mExpandedIndex = -1; } @Override public int getCount() { ArrayList<MenuItemImpl> items = mMenu.getNonActionItems(); int count = items.size() - mItemIndexOffset; if (mExpandedIndex < 0) { return count; } return count - 1; } @Override public MenuItemImpl getItem(int position) { ArrayList<MenuItemImpl> items = mMenu.getNonActionItems(); position += mItemIndexOffset; if (mExpandedIndex >= 0 && position >= mExpandedIndex) { position++; } return items.get(position); } @Override public long getItemId(int position) { return position; } @Override public View getView(int position, View convertView, ViewGroup parent) { if (convertView == null) { convertView = mInflater.inflate(mItemLayoutRes, parent, false); } MenuView.ItemView itemView = (MenuView.ItemView) convertView; itemView.initialize(getItem(position), 0); return convertView; } @Override public void notifyDataSetChanged() { findExpandedIndex(); super.notifyDataSetChanged(); } } public static final String VIEWS_TAG = "android:menu:list"; MenuAdapter mAdapter; private Callback mCallback; Context mContext; private int mId; LayoutInflater mInflater; private int mItemIndexOffset; int mItemLayoutRes; MenuBuilder mMenu; ExpandedMenuView mMenuView; int mThemeRes; public ListMenuPresenter(Context context, int itemLayoutRes) { this(itemLayoutRes, 0); mContext = context; mInflater = LayoutInflater.from(mContext); } public ListMenuPresenter(int itemLayoutRes, int themeRes) { mItemLayoutRes = itemLayoutRes; mThemeRes = themeRes; } @Override public boolean collapseItemActionView(MenuBuilder menu, MenuItemImpl item) { return false; } @Override public boolean expandItemActionView(MenuBuilder menu, MenuItemImpl item) { return false; } @Override public boolean flagActionItems() { return false; } public ListAdapter getAdapter() { if (mAdapter == null) { mAdapter = new MenuAdapter(); } return mAdapter; } @Override public int getId() { return mId; } int getItemIndexOffset() { return mItemIndexOffset; } @Override public MenuView getMenuView(ViewGroup root) { if (mMenuView == null) { mMenuView = (ExpandedMenuView) mInflater.inflate( R.layout.expanded_menu_layout, root, false); if (mAdapter == null) { mAdapter = new MenuAdapter(); } mMenuView.setAdapter(mAdapter); mMenuView.setOnItemClickListener(this); } return mMenuView; } @Override public void initForMenu(Context context, MenuBuilder menu) { if (mThemeRes != 0) { mContext = new ContextThemeWrapperPlus(context, mThemeRes); mInflater = LayoutInflater.from(mContext); } else if (mContext != null) { mContext = context; if (mInflater == null) { mInflater = LayoutInflater.from(mContext); } } mMenu = menu; if (mAdapter != null) { mAdapter.notifyDataSetChanged(); } } @Override public void onCloseMenu(MenuBuilder menu, boolean allMenusAreClosing) { if (mCallback != null) { mCallback.onCloseMenu(menu, allMenusAreClosing); } } @Override public void onItemClick(AdapterView<?> parent, View view, int position, long id) { mMenu.performItemAction(mAdapter.getItem(position), 0); } @Override public void onRestoreInstanceState(Parcelable state) { restoreHierarchyState((Bundle) state); } @Override public Parcelable onSaveInstanceState() { if (mMenuView == null) { return null; } Bundle state = new Bundle(); saveHierarchyState(state); return state; } @Override public boolean onSubMenuSelected(SubMenuBuilder subMenu) { if (!subMenu.hasVisibleItems()) { return false; } new MenuDialogHelper(subMenu).show(null); if (mCallback != null) { mCallback.onOpenSubMenu(subMenu); } return true; } public void restoreHierarchyState(Bundle inState) { SparseArray<Parcelable> viewStates = inState .getSparseParcelableArray(ListMenuPresenter.VIEWS_TAG); if (viewStates != null) { ((View) mMenuView).restoreHierarchyState(viewStates); } } public void saveHierarchyState(Bundle outState) { SparseArray<Parcelable> viewStates = new SparseArray<Parcelable>(); if (mMenuView != null) { ((View) mMenuView).saveHierarchyState(viewStates); } outState.putSparseParcelableArray(ListMenuPresenter.VIEWS_TAG, viewStates); } @Override public void setCallback(Callback cb) { mCallback = cb; } public void setId(int id) { mId = id; } public void setItemIndexOffset(int offset) { mItemIndexOffset = offset; if (mMenuView != null) { updateMenuView(false); } } @Override public void updateMenuView(boolean cleared) { if (mAdapter != null) { mAdapter.notifyDataSetChanged(); } } }