mirror of
https://github.com/xcp-ng/xenadmin.git
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417 lines
16 KiB
C#
417 lines
16 KiB
C#
/* Copyright (c) Citrix Systems Inc.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms,
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* with or without modification, are permitted provided
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* that the following conditions are met:
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*
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* * Redistributions of source code must retain the above
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* copyright notice, this list of conditions and the
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* following disclaimer.
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* * Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the
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* following disclaimer in the documentation and/or other
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* materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
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* CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
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* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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using System;
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using System.Drawing;
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using System.Windows.Forms;
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using System.Threading;
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using System.Collections.Generic;
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namespace XenAdmin.Dialogs
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{
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public partial class ThreeButtonDialog : XenDialogBase
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{
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private string helpName = "DefaultHelpTopic";
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/// <summary>
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/// Gives you a dialog with a single OK button.
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/// </summary>
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/// <param name="properties"></param>
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/// <param name="helpName"></param>
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public ThreeButtonDialog(Details properties, string helpName)
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: this(properties, ButtonOK)
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{
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this.helpName = helpName;
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HelpButton = true;
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}
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/// <summary>
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/// Gives you a dialog with the specified buttons.
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/// </summary>
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/// <param name="properties"></param>
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/// <param name="helpName"></param>
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/// <param name="buttons">Must be between 1 and 3 buttons</param>
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public ThreeButtonDialog(Details properties, string helpName, params TBDButton[] buttons)
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: this(properties, buttons)
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{
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this.helpName = helpName;
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HelpButton = true;
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}
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/// <summary>
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/// Gives you a dialog with a single OK button.
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/// </summary>
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/// <param name="properties"></param>
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/// <param name="helpName"></param>
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public ThreeButtonDialog(Details properties)
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: this(properties, ButtonOK)
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{
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}
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/// <summary>
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/// Gives you a dialog with the specified buttons.
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/// </summary>
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/// <param name="properties"></param>
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/// <param name="buttons">>Must be between 1 and 3 buttons</param>
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public ThreeButtonDialog(Details properties, params TBDButton[] buttons)
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{
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System.Diagnostics.Trace.Assert(buttons.Length > 0 && buttons.Length < 4, "Three button dialog can only have between 1 and 3 buttons.");
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InitializeComponent();
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if (properties.Icon == null)
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pictureBoxIcon.Visible = false;
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else
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pictureBoxIcon.Image = properties.Icon.ToBitmap();
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labelMessage.Text = properties.MainMessage;
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if (properties.linkLength > 0)
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labelMessage.Links.Add(new LinkLabel.Link(properties.linkStart, properties.linkLength, properties.linkUrl));
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if (properties.WindowTitle != null)
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this.Text = properties.WindowTitle;
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button1.Visible = true;
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button1.Text = buttons[0].label;
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button1.DialogResult = buttons[0].result;
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if (buttons[0].defaultAction == ButtonType.ACCEPT)
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{
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AcceptButton = button1;
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if (buttons.Length == 1)
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CancelButton = button1;
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}
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else if (buttons[0].defaultAction == ButtonType.CANCEL)
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CancelButton = button1;
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if (buttons[0].selected)
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button1.Select();
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if (buttons.Length > 1)
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{
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button2.Visible = true;
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button2.Text = buttons[1].label;
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button2.DialogResult = buttons[1].result;
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if (buttons[1].defaultAction == ButtonType.ACCEPT)
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AcceptButton = button2;
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else if (buttons[1].defaultAction == ButtonType.CANCEL)
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CancelButton = button2;
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if (buttons[1].selected)
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button2.Select();
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}
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else
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{
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button2.Visible = false;
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}
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if (buttons.Length > 2)
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{
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button3.Visible = true;
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button3.Text = buttons[2].label;
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button3.DialogResult = buttons[2].result;
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if (buttons[2].defaultAction == ButtonType.ACCEPT)
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AcceptButton = button3;
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else if (buttons[2].defaultAction == ButtonType.CANCEL)
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CancelButton = button3;
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if (buttons[2].selected)
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button3.Select();
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}
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else
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{
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button3.Visible = false;
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}
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}
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/// <summary>
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/// The message displayed on the dialog
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/// </summary>
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public String Message
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{
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get { return labelMessage.Text; }
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}
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/// <summary>
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/// A list of buttons on the page
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/// </summary>
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public List<Button> Buttons
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{
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get
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{
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return new List<Button>()
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{
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button1,
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button2,
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button3
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};
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}
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}
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/// <summary>
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/// A list of buttons on the page that have been set visible
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/// </summary>
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public List<Button> VisibleButtons
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{
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get
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{
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List<Button> visibleButtonList = new List<Button>();
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Buttons.ForEach(button => AddButtonIfVisible(visibleButtonList, button));
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return visibleButtonList;
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}
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}
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private void AddButtonIfVisible( List<Button> buttonList, Button button )
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{
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if( button.Visible )
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buttonList.Add( button );
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}
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internal override string HelpName
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{
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get
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{
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return helpName;
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}
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}
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public class TBDButton
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{
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public string label;
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public DialogResult result;
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public ButtonType defaultAction = ButtonType.NONE;
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public bool selected = false;
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/// <summary>
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/// Describes a button for the three button dialog. This constructor infers the dialogs default button from
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/// the result type you give it.
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///
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/// To override this behaviour use another constructor.
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/// </summary>
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/// <param name="label">The label for the button</param>
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/// <param name="result">The result to return on click. Setting result to be OK or Yes results in the dialog choosing this button as the DefaultAcceptButton,
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/// and No or Cancel sets it as the DefaultCancelButton.</param>
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public TBDButton(string label, DialogResult result)
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{
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this.label = label;
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this.result = result;
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if (result == DialogResult.OK || result == DialogResult.Yes)
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defaultAction = ButtonType.ACCEPT;
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if (result == DialogResult.No || result == DialogResult.Cancel)
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defaultAction = ButtonType.CANCEL;
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}
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/// <summary>
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/// This constructor allows you to override how the threebuttondialog interprets the dialogresult of this button.
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/// </summary>
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/// <param name="label">The label for the button</param>
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/// <param name="result">The result to return on click.</param>
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/// <param name="isDefaultButton">The role the button plays in the dialog</param>
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public TBDButton(string label, DialogResult result, ButtonType isDefaultButton)
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: this(label, result)
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{
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defaultAction = isDefaultButton;
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}
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/// <summary>
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/// This constructor allows you to override how the threebuttondialog interprets the dialogresult of this button and specify if the button is selected by default.
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/// </summary>
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/// <param name="label">The label for the button</param>
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/// <param name="result">The result to return on click.</param>
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/// <param name="isDefaultButton">The role the button plays in the dialog</param>
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public TBDButton(string label, DialogResult result, ButtonType isDefaultButton, bool select)
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: this(label, result, isDefaultButton)
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{
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selected = select;
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}
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}
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/// <summary>
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/// Using Accept results in this button becoming the DefaultAcceptButton, and Cancel sets it as the DefaultCancelButton
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/// </summary>
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public enum ButtonType { NONE, ACCEPT, CANCEL };
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/// <summary>
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/// Describes the main properties of a dialog
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/// </summary>
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public class Details
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{
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public Icon Icon;
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public string WindowTitle = null;
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public string MainMessage = "";
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public int linkStart = 0;
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public int linkLength = 0;
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public string linkUrl = "";
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public Details(Icon Icon, string MainMessage)
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{
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this.Icon = Icon;
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this.MainMessage = MainMessage;
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}
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public Details(Icon Icon, string MainMessage, string WindowTitle)
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: this(Icon, MainMessage)
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{
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this.WindowTitle = WindowTitle;
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}
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public Details(Icon Icon, string MainMessage, int linkStart, int linkLength, string linkUrl, string WindowTitle)
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: this(Icon, MainMessage, WindowTitle)
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{
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this.linkStart = linkStart;
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this.linkLength = linkLength;
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this.linkUrl = linkUrl;
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}
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}
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/// <summary>
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/// Retrieves a button with label Messages.YES_BUTTON_CAPTION and result DialogResult.Yes
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/// </summary>
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public static TBDButton ButtonYes
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{
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get
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{
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return new TBDButton(Messages.YES_BUTTON_CAPTION, DialogResult.Yes);
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}
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}
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/// <summary>
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/// Retrieves a button with label Messages.NO_BUTTON_CAPTION and result DialogResult.No
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/// </summary>
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public static TBDButton ButtonNo
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{
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get
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{
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return new TBDButton(Messages.NO_BUTTON_CAPTION, DialogResult.No);
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}
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}
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/// <summary>
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/// Retrieves a button with label Messages.OK and result DialogResult.OK)
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/// </summary>
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public static TBDButton ButtonOK
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{
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get
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{
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return new TBDButton(Messages.OK, DialogResult.OK);
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}
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}
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/// <summary>
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/// Retrieves a button with label Messages.CANCEL and result DialogResult.Cancel
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/// </summary>
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public static TBDButton ButtonCancel
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{
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get
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{
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return new TBDButton(Messages.CANCEL, DialogResult.Cancel);
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}
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}
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private void ThreeButtonDialog_FormClosing(object sender, FormClosingEventArgs e)
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{
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if (e.CloseReason == CloseReason.UserClosing)
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{
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if (!closedFromButton)
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{
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// User has closed without pressing a button (e.g. the cross)
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// In the following scenarios we can predict what they mean:
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if (CancelButton != null)
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{
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// There's a cancel button, this most closely maps to the desire of someone telling the window to get lost
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DialogResult = CancelButton.DialogResult;
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}
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else if (VisibleButtons.Find(delegate(Button b) { return b.DialogResult == DialogResult.Cancel; }) != null)
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{
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// There's a cancel button, this most closely maps to the desire of someone telling the window to get lost
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DialogResult = DialogResult.Cancel;
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}
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else if (VisibleButtons.Count == 1)
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{
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// Single button, they only had one choice anyway. 99% of the time this an OK prompt
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DialogResult = VisibleButtons[0].DialogResult;
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}
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else if (VisibleButtons.Count == 2 && VisibleButtons[0].DialogResult == DialogResult.Yes && VisibleButtons[1].DialogResult == DialogResult.No)
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{
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// Another common scenario, a yes/no prompt. Slightly more dubious this one, but they most likely mean no.
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// The following issues have been considered:
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// - If we are performing a dangerous/significant/unreversable action then this should be an OK Cancel dialog anyway
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// - You've got the Yes/No buttons the wrong way round
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//
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// ...either way you should go back to UI school :)
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DialogResult = DialogResult.No;
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}
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else
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{
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// We can't figure out what they mean, and since people almost always only assume that the dialog only returns the results on
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// the buttons we are going to block the close
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// Set a CancelButton if you want to stop this happening
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e.Cancel = true;
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}
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}
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}
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}
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private bool closedFromButton = false;
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private void button1_Click(object sender, EventArgs e)
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{
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closedFromButton = true;
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Close();
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}
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private void button2_Click(object sender, EventArgs e)
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{
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closedFromButton = true;
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Close();
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}
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private void button3_Click(object sender, EventArgs e)
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{
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closedFromButton = true;
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Close();
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}
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private void labelMessage_LinkClicked(object sender, LinkLabelLinkClickedEventArgs e)
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{
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try
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{
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System.Diagnostics.Process.Start(e.Link.LinkData.ToString());
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}
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catch { } // Best effort
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}
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}
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}
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