using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Shapes;
using System.Windows.Interop;
using GummingCommon;

namespace GummingCommon
{
    /// <summary>
    /// BaseWindow is base class,many windows will inherit it.
    /// this class automatic to adjust window size 
    /// </summary>
    public partial class BaseDialog : Window
    {
        public BaseDialog()
        {
            this.WindowStyle = WindowStyle.None;
            this.ResizeMode = System.Windows.ResizeMode.NoResize; 
            this.WindowState = System.Windows.WindowState.Normal;
            this.BorderThickness = new Thickness(0);
            this.AllowsTransparency = true;
            this.ShowInTaskbar = false;
            //ScreenControl.ChangeScreenRangeBehavior(this);
            ScreenZoom.Topmargin = 40;
            this.MouseDown += new MouseButtonEventHandler(Window_MouseDown);
            this.MouseMove += new MouseEventHandler(Window_MouseMove);
            this.KeyDown += MainWindow_KeyDown;
            this.Loaded += BaseDialog_Loaded;
            //Application.Current.Resources.MergedDictionaries.Clear();
            //string packUri2 = @"/GummingCommon;component/Resources.xaml";
            //Application.Current.Resources.MergedDictionaries.Add(Application.LoadComponent(new Uri(packUri2, UriKind.Relative)) as ResourceDictionary);
        }

        MessageBoxServiceViewModule _vm = null;
        private MessageBoxServiceViewModule GetCurrentMv()
        {
            if (null == _vm)
            {
                _vm = this.DataContext as MessageBoxServiceViewModule;
            }
            return _vm;
        }

        ViewModelBase _viewer = null;
        private ViewModelBase GetCurrentViewer()
        {
            if (null == _viewer)
            {
                _viewer = this.DataContext as ViewModelBase;
            }
            return _viewer;
        }

        private void Window_MouseDown(object sender, System.Windows.Input.MouseButtonEventArgs e)
        {
            ScreenZoom.SetMouseState(this, true, e);
        }

        private void Window_MouseMove(object sender, System.Windows.Input.MouseEventArgs e)
        {
            ScreenZoom.SetMouseState(this, false, e);
        }

        private void MainWindow_KeyDown(object sender, KeyEventArgs e)
        {
            if (e.Key == Key.Escape)
            {
                //this.Close();
            }
        }

        protected override void OnClosing(System.ComponentModel.CancelEventArgs e)
        {
            base.OnClosing(e);
            Helpering.LeaveDialogToBuffer(this);
            if (Application.Current.MainWindow != null)
            {
                if (GetCurrentMv() != null && _vm.IsKeepInProcessVisibility)
                {
                    return;
                }
                if (GetCurrentViewer() != null && _viewer.IsKeepInProcessVisibility)
                {
                    return;
                }

                AppEventAggregator.GetEventAggregator().GetEvent<NotifyChangedEvent>().Publish(new NotifyEventParameter() {  NotifyType = CallbackType.CloseDialogView });
                //MainWindow wm = (MainWindow)Application.Current.MainWindow;
                //wm.CloseDialogView();
            }
        }

        private void BaseDialog_Loaded(object sender, RoutedEventArgs e)
        {
            if (Application.Current.MainWindow != null && (GetCurrentViewer() == null || !GetCurrentViewer().DisabledShowDialogView))
            {
                AppEventAggregator.GetEventAggregator().GetEvent<NotifyChangedEvent>().Publish(new NotifyEventParameter() { NotifyType = CallbackType.ShowDialogView });
                //MainWindow wm = (MainWindow)Application.Current.MainWindow;
                //wm.ShowDialogView();
            }

            Helpering.PushDialogToBuffer(this);
        }
    }

}