root/platform/silverlight/Todo/trunk/src/Todo/Controls/ItemListBox.xaml.cs @ 9712

#region license
/*
Copyright (c) 2008, Kouji Yamaguchi
All rights reserved.

Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:

* Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.

* Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.

* Neither the name of coma2n nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#endregion

#region namespaces

using System;
using System.Windows;
using System.Windows.Input;
using System.Windows.Shapes;
using System.Windows.Controls;
using System.Collections.Generic;
using System.Diagnostics;

#endregion

namespace Todo.Controls {
    /// <summary>
    /// 
    /// </summary>
    public partial class ItemListBox : UserControl {

        #region fields

        /// <summary>
        /// 最後にクリックした時間
        /// </summary>
        private DateTime lastClickTime = DateTime.MinValue;

        /// <summary>
        /// ToolTipのテンプレート
        /// </summary>
        private readonly ToolTip tooltipTemplate;

        #endregion

        #region properties

        /// <summary>
        /// ItemsSource
        /// </summary>
        public static readonly DependencyProperty ItemsSourceProperty = DependencyProperty.Register(
            "ItemsSource", typeof(IEnumerable<Item>), typeof(ItemListBox),
            (d, e) => ((ItemListBox)d).itemList.ItemsSource = (IEnumerable<Item>)e.NewValue
        );
        /// <summary>
        /// アイテムのソースを取得、設定します。
        /// </summary>
        public IEnumerable<Item> ItemsSource {
            get {
                return (IEnumerable<Item>)this.GetValue(ItemsSourceProperty);
            }
            set {
                this.SetValue(ItemsSourceProperty, value);
            }
        }

        /// <summary>
        /// 選択しているTodoアイテムを取得します。
        /// </summary>
        public Item SelectedItem {
            get { return itemList.SelectedItem as Item; }
        }

        #endregion

        #region event

        /// <summary>
        /// アイテムの完了状態が変更された時に呼び出されます。
        /// </summary>
        public event EventHandler<ItemCompletingEventArgs> ItemCompleting;
        /// <summary>
        /// ItemCompletingイベントを呼び出します。
        /// </summary>
        /// <param name="e">イベント引数</param>
        protected virtual void OnItemCompleting(ItemCompletingEventArgs e) {
            if(ItemCompleting != null) ItemCompleting(this, e);
        }

        /// <summary>
        /// アイテムがダブルクリックされた時に呼び出されます。
        /// </summary>
        public event RoutedEventHandler ItemDoubleClick;
        /// <summary>
        /// ItemDoubleClickイベントを呼び出します。
        /// </summary>
        /// <param name="e">イベント引数</param>
        protected virtual void OnItemDoubleClick(RoutedEventArgs e) {
            if(ItemDoubleClick != null) ItemDoubleClick(this, e);
        }

                /// <summary>
                /// アイテムの選択が変更された時に呼び出されます。
                /// </summary>
                public event SelectionChangedEventHandler SelectionChanged;
                /// <summary>
                /// SelectionChangedイベントを呼び出します。
                /// </summary>
                /// <param name="e">イベント引数</param>
                protected virtual void OnSelectionChanged(SelectionChangedEventArgs e) {
                        if(SelectionChanged != null) SelectionChanged(this, e);
                }

        #endregion

        #region constructors

        /// <summary>
        /// 標準的なコンストラクタ
        /// </summary>
        public ItemListBox() {
            InitializeComponent();

            tooltipTemplate = (ToolTip)this.Resources["tooltipTemplate"];
        }

        #endregion

                #region handlers

                private void itemList_MouseLeftButtonDown(object sender, MouseButtonEventArgs e) {
                        var now = DateTime.Now;

                        if((now - lastClickTime).TotalMilliseconds <= 200) {
                                if(this.SelectedItem != null) {
                                        OnItemDoubleClick(new RoutedEventArgs {
                                                Source = this
                                        });
                                }
                        }
                        lastClickTime = now;
                }

                private void completeCheck_Checked(object sender, RoutedEventArgs e) {
                        var checkbox = (CheckBox)sender;
                        var strikeLine = (Line)checkbox.FindName("strikeLine");

                        strikeLine.Visibility = checkbox.IsChecked.Value ? Visibility.Visible : Visibility.Collapsed;

                        var item = this.SelectedItem;

                        if(item != null) {
                                OnItemCompleting(new ItemCompletingEventArgs(item.Id, checkbox.IsChecked.Value) {
                                        Source = this
                                });
                        }
                }

                private void itemList_SelectionChanged(object sender, SelectionChangedEventArgs e) {
                        OnSelectionChanged(e);
                }

        private void Item_Loaded(object sender, RoutedEventArgs e) {
            var ele = (FrameworkElement)sender;
            var item = ele.DataContext as Item;

            if(item != null) {
                var tooltip = new ToolTip {
                    Content = item.Description,
                    Template = tooltipTemplate.Template
                };
                ToolTipService.SetToolTip(ele, tooltip);
            }
        }

                #endregion

    }

    #region ItemCompletingEventArgs class

    /// <summary>
    /// Todoアイテムの完了状態が変更された時のイベントのイベント引数クラス
    /// </summary>
    public class ItemCompletingEventArgs : RoutedEventArgs {

        #region fields

        private string id;
        private bool complete;

        #endregion

        #region properties

        /// <summary>
        /// TodoアイテムのIdを取得します。
        /// </summary>
        public string Id {
            get { return id; }
        }

        /// <summary>
        /// 完了状態を取得します。
        /// </summary>
        public bool Complete {
            get { return complete; }
        }

        #endregion

        #region constructors

        /// <summary>
        /// TodoアイテムのIdと完了状態を設定するコンストラクタ
        /// </summary>
        /// <param name="id">Id</param>
        /// <param name="complete">完了状態</param>
        public ItemCompletingEventArgs(string id, bool complete) {
            this.id = id;
            this.complete = complete;
        }

        #endregion

    }

    #endregion

}