michael@0: /* -*- Mode: Java; c-basic-offset: 4; tab-width: 20; indent-tabs-mode: nil; -*-
michael@0:  * This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: package org.mozilla.gecko.home;
michael@0: 
michael@0: import org.mozilla.gecko.R;
michael@0: import org.mozilla.gecko.home.HomePager.OnUrlOpenListener;
michael@0: 
michael@0: import android.content.Context;
michael@0: import android.content.res.TypedArray;
michael@0: import android.database.Cursor;
michael@0: import android.graphics.drawable.Drawable;
michael@0: import android.util.AttributeSet;
michael@0: import android.view.ContextMenu.ContextMenuInfo;
michael@0: import android.view.View;
michael@0: import android.widget.AdapterView;
michael@0: import android.widget.AdapterView.OnItemLongClickListener;
michael@0: import android.widget.ListView;
michael@0: 
michael@0: /**
michael@0:  * HomeListView is a custom extension of ListView, that packs a HomeContextMenuInfo
michael@0:  * when any of its rows is long pressed.
michael@0:  */
michael@0: public class HomeListView extends ListView
michael@0:                           implements OnItemLongClickListener {
michael@0: 
michael@0:     // ContextMenuInfo associated with the currently long pressed list item.
michael@0:     private HomeContextMenuInfo mContextMenuInfo;
michael@0: 
michael@0:     // On URL open listener
michael@0:     protected OnUrlOpenListener mUrlOpenListener;
michael@0: 
michael@0:     // Top divider
michael@0:     private boolean mShowTopDivider;
michael@0: 
michael@0:     // ContextMenuInfo maker
michael@0:     private HomeContextMenuInfo.Factory mContextMenuInfoFactory;
michael@0: 
michael@0:     public HomeListView(Context context) {
michael@0:         this(context, null);
michael@0:     }
michael@0: 
michael@0:     public HomeListView(Context context, AttributeSet attrs) {
michael@0:         this(context, attrs, R.attr.homeListViewStyle);
michael@0:     }
michael@0: 
michael@0:     public HomeListView(Context context, AttributeSet attrs, int defStyle) {
michael@0:         super(context, attrs, defStyle);
michael@0: 
michael@0:         TypedArray a = context.obtainStyledAttributes(attrs, R.styleable.HomeListView, defStyle, 0);
michael@0:         mShowTopDivider = a.getBoolean(R.styleable.HomeListView_topDivider, false);
michael@0:         a.recycle();
michael@0: 
michael@0:         setOnItemLongClickListener(this);
michael@0:     }
michael@0: 
michael@0:     @Override
michael@0:     public void onAttachedToWindow() {
michael@0:         super.onAttachedToWindow();
michael@0: 
michael@0:         final Drawable divider = getDivider();
michael@0:         if (mShowTopDivider && divider != null) {
michael@0:             final int dividerHeight = getDividerHeight();
michael@0:             final View view = new View(getContext());
michael@0:             view.setLayoutParams(new LayoutParams(LayoutParams.FILL_PARENT, dividerHeight));
michael@0:             addHeaderView(view);
michael@0:         }
michael@0:     }
michael@0: 
michael@0:     @Override
michael@0:     public void onDetachedFromWindow() {
michael@0:         super.onDetachedFromWindow();
michael@0: 
michael@0:         mUrlOpenListener = null;
michael@0:     }
michael@0: 
michael@0:     @Override
michael@0:     public boolean onItemLongClick(AdapterView<?> parent, View view, int position, long id) {
michael@0:         Object item = parent.getItemAtPosition(position);
michael@0: 
michael@0:         // HomeListView could hold headers too. Add a context menu info only for its children.
michael@0:         if (item instanceof Cursor) {
michael@0:             Cursor cursor = (Cursor) item;
michael@0:             if (cursor == null || mContextMenuInfoFactory == null) {
michael@0:                 mContextMenuInfo = null;
michael@0:                 return false;
michael@0:             }
michael@0: 
michael@0:             mContextMenuInfo = mContextMenuInfoFactory.makeInfoForCursor(view, position, id, cursor);
michael@0:             return showContextMenuForChild(HomeListView.this);
michael@0: 
michael@0:         } else {
michael@0:             mContextMenuInfo = null;
michael@0:             return false;
michael@0:         }
michael@0:     }
michael@0: 
michael@0:     @Override
michael@0:     public ContextMenuInfo getContextMenuInfo() {
michael@0:         return mContextMenuInfo;
michael@0:     }
michael@0: 
michael@0:     @Override
michael@0:     public void setOnItemClickListener(final AdapterView.OnItemClickListener listener) {
michael@0:         if (listener == null) {
michael@0:             super.setOnItemClickListener(null);
michael@0:             return;
michael@0:         }
michael@0: 
michael@0:         super.setOnItemClickListener(new AdapterView.OnItemClickListener() {
michael@0:             @Override
michael@0:             public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
michael@0:                 if (mShowTopDivider) {
michael@0:                     position--;
michael@0:                 }
michael@0: 
michael@0:                 listener.onItemClick(parent, view, position, id);
michael@0:             }
michael@0:         });
michael@0:     }
michael@0: 
michael@0:     public void setContextMenuInfoFactory(final HomeContextMenuInfo.Factory factory) {
michael@0:         mContextMenuInfoFactory = factory;
michael@0:     }
michael@0: 
michael@0:     public OnUrlOpenListener getOnUrlOpenListener() {
michael@0:         return mUrlOpenListener;
michael@0:     }
michael@0: 
michael@0:     public void setOnUrlOpenListener(OnUrlOpenListener listener) {
michael@0:         mUrlOpenListener = listener;
michael@0:     }
michael@0: }