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Dialog.cs
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Dialog.cs
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#region
using System;
using System.Collections.Generic;
using System.Windows.Forms;
using AN_Client.interfaces;
using AN_Client.srcNonFramed;
#endregion
/// Bla bla bla
namespace AN_Client.srcFramed
{
class Dialog : IDialog, IDialogCallbacks
{
static Stack<Dialog> dialogHistory = new Stack<Dialog>();
protected DialogParm args = DialogParm.Empty;
protected readonly IDialogForm dialogForm;
Action back;
Action cancel;
readonly IDialog cancelTarget;
Action<DialogParm> ok;
public Dialog(IDialogForm dialogForm)
{
this.dialogForm = dialogForm;
}
public Dialog(IDialogForm dialogForm, IDialog cancelTarget)
: this(dialogForm)
{
this.cancelTarget = cancelTarget;
}
public Form Form
{
get { return (Form) dialogForm; }
}
#region IDialog Members
/// Unnecessary comment
void IDialog.Activate()
{
((IDialog)this).Activate(args);
}
void IDialog.Activate(DialogParm args)
{
PreviousFormOnLeave();
ActivateCore(args);
HidePreviousForm();
}
static void PreviousFormOnLeave()
{
if (dialogHistory.Count > 0)
{
Dialog previousDialog = dialogHistory.Peek();
previousDialog.OnLeave();
}
}
void HidePreviousForm()
{
if (dialogHistory.Count > 0)
{
Form previousForm = dialogHistory.Peek().Form;
if (Form != previousForm)
{
previousForm.Visible = false;
}
}
}
void IDialog.End()
{
OnLeave();
Form.Visible = false;
dialogHistory.Clear();
}
Action<DialogParm> IDialog.Ok
{
set { ok = value; }
}
Action IDialog.Back
{
set { back = value; }
}
Action IDialog.Cancel
{
set { cancel = value; }
}
#endregion
#region IDialogCallbacks Members
void IDialogCallbacks.OnOk(DialogParm result)
{
dialogHistory.Push(this);
if (ok != null)
{
try
{
ok.Invoke(result);
}
catch (Exception ex)
{
ToolboxMethods.ShowException("Dialog OnOk", ex);
ToolboxMethods.LogException(ex);
}
}
}
void IDialogCallbacks.OnBack()
{
NavigateBack();
if (back != null)
{
try
{
back.Invoke();
}
catch (Exception ex)
{
ToolboxMethods.ShowException("Dialog OnBack", ex);
ToolboxMethods.LogException(ex);
}
}
}
void IDialogCallbacks.OnCancel()
{
Cancel();
if (cancel != null)
{
try
{
cancel.Invoke();
}
catch (Exception ex)
{
ToolboxMethods.ShowException("Dialog OnCancel", ex);
ToolboxMethods.LogException(ex);
}
}
}
#endregion
public static void ClearNavigationHistory()
{
dialogHistory = new Stack<Dialog>();
}
public static void OnBack(IDialogCallbacks callbacks)
{
if (callbacks != null)
{
callbacks.OnBack();
}
}
public static void OnCancel(IDialogCallbacks callbacks)
{
if (callbacks != null)
{
callbacks.OnCancel();
}
}
public static void OnOk(IDialogCallbacks callbacks, DialogParm result)
{
if (callbacks != null)
{
callbacks.OnOk(result);
}
}
void NavigateBack()
{
if (dialogHistory.Count > 0)
{
OnLeave();
dialogHistory.Pop().ActivateAndHideThis(Form);
}
else
{
OnLeave();
Form.Visible = false;
}
}
void Cancel()
{
OnLeave();
Form.Visible = false;
dialogHistory.Clear();
if (cancelTarget != null)
{
cancelTarget.Activate();
}
}
void ActivateAndHideThis(Control sourceForm)
{
ActivateCore(args);
if (Form != sourceForm)
{
sourceForm.Visible = false;
}
}
void ActivateCore(DialogParm args)
{
this.args = args;
dialogForm.Activate(this, args);
Form.TopMost = true;
Form.Show();
OnEnter();
}
protected virtual void OnEnter()
{}
protected virtual void OnLeave()
{}
}
}