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// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
// See the LICENSE file in the project root for more information.
// Description:
// SignatureSummaryDialog. This dialog class handles both the Signature Summary
// dialog and the Request Signature Dialog. The toggle for changing the dialog is
// in the constructor (bool showRequestDialog). Some fields are used for both
// dialog types and others are only used in one or the other.
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Diagnostics;
using System.Drawing;
using System.Security;
using System.Windows.Forms;
using System.IO.Packaging;
using System.Windows.TrustUI;
using MS.Internal.PresentationUI;
namespace MS.Internal.Documents
{
internal sealed partial class SignatureSummaryDialog : DialogBaseForm
{
#region Constructors
//------------------------------------------------------
//
// Constructors
//
//------------------------------------------------------
/// <summary>
/// Constructor
/// </summary>
/// <param name="IList<SignatureResources>">Ad</param>
/// <param name="docSigManager">The DocSigManager ref so dialog can call sign method.</param>
/// <returns></returns>
internal SignatureSummaryDialog(IList<SignatureResources> signatureResourcesList,
DocumentSignatureManager docSigManager,
bool showRequestDialog
)
{
//Init private fields
_documentSignatureManager = docSigManager;
//Set Dialog Type (Summary or Request)
_showRequestDialog = showRequestDialog;
// Initialize all the UI components
InitializeDialogType();
//Show only the buttons appropriate for the current mode.
if (_showRequestDialog == true)
{
Text = SR.DigSigRequestTitle;
_buttonSign.Visible = false;
_buttonViewCert.Visible = false;
_buttonRequestAdd.Visible = true;
_buttonRequestDelete.Visible = true;
}
else
{
Text = SR.DigSigSumTitle;
_buttonRequestAdd.Visible = false;
_buttonRequestDelete.Visible = false;
_buttonSign.Visible = true;
_buttonViewCert.Visible = true;
}
//Find the signatures applied to this package and add them to the the ListBox
foreach (SignatureResources signatureResources in signatureResourcesList)
{
AddDigSig(signatureResources);
}
// Add a handler to update the dialog when signature status changes
DocumentSignatureManager.Current.SignatureStatusChange +=
new DocumentSignatureManager.SignatureStatusChangeHandler(OnSignatureStatusChange);
}
#endregion Constructors
#region Private Properties
//------------------------------------------------------
//
// Private Properties
//
//------------------------------------------------------
/// <summary>
/// Indicates what width the Listbox has reserved for the Icon.
/// </summary>
/// <value></value>
private int IconWidth
{
get
{
return _showRequestDialog ? 0 : 35;
}
}
/// <summary>
/// Indicates what height the Listbox has reserved for the Icon.
/// </summary>
/// <value></value>
private int IconHeight
{
get
{
return _showRequestDialog ? 0 : 35;
}
}
/// <summary>
/// Indicates what width the Listbox has reserved for all the
/// text (minus icon).
/// </summary>
/// <value></value>
private int RemainingTextWidth
{
get { return _listBoxSummary.Width - IconWidth; }
}
/// <summary>
/// Indicates the width reserved for the Subject text.
/// </summary>
/// <value></value>
private int SummaryNameTextWidth
{
get { return _showRequestDialog ?
(int)(RemainingTextWidth * 0.20) :
(int)(RemainingTextWidth * 0.60);
}
}
/// <summary>
/// Indicates the width reserved for the message text.
/// </summary>
/// <value></value>
private int IntentTextWidth
{
get { return _showRequestDialog ?
(int)((RemainingTextWidth - SummaryNameTextWidth) * 0.55) :
(int)(RemainingTextWidth * 0.40);
}
}
/// <summary>
/// Indicates the width reserved for the signed content text.
/// </summary>
/// <value></value>
private int LocaleTextWidth
{
get
{
return (int)((RemainingTextWidth - SummaryNameTextWidth - IntentTextWidth) * 0.5);
}
}
/// <summary>
/// Indicates the width reserved for the signed content text.
/// </summary>
/// <value></value>
private int SignByTextWidth
{
get { return RemainingTextWidth - SummaryNameTextWidth - IntentTextWidth - LocaleTextWidth; }
}
/// <summary>
/// Indicates the padding within the reserved width for each text section.
/// </summary>
private Padding CellPadding
{
get
{
return _cellPadding;
}
}
#endregion Private Properties
#region Private Methods
//------------------------------------------------------
//
// Private Methods
//
//------------------------------------------------------
/// <summary>
/// ApplySignatureSpecificResources - sets the text based on Cert and Signature.
/// </summary>
private void InitializeDialogType()
{
InitializeColumnHeaders();
//Show only the buttons appropriate for the current mode.
if (_showRequestDialog == true)
{
Text = SR.DigSigRequestTitle;
_buttonSign.Visible = false;
_buttonViewCert.Visible = false;
_buttonRequestAdd.Visible = true;
_buttonRequestDelete.Visible = true;
AcceptButton = _buttonRequestAdd;
}
else
{
Text = SR.DigSigSumTitle;
_buttonRequestAdd.Visible = false;
_buttonRequestDelete.Visible = false;
_buttonSign.Visible = true;
_buttonViewCert.Visible = true;
AcceptButton = _buttonSign;
}
_buttonRequestDelete.Click += new System.EventHandler(_buttonRequestDelete_Click);
}
/// <summary>
/// InitializeColumnHeaders.
/// </summary>
/// <returns></returns>
private void InitializeColumnHeaders()
{
Padding columnMargin = new Padding(0);
Padding columnPadding = new Padding(CellPadding.Left, 3, 0, 3);
Font columnHeaderFont = new System.Drawing.Font(Font, System.Drawing.FontStyle.Bold);
if (_showRequestDialog)
{
Label nameHeader = new Label();
nameHeader.AutoSize = true;
nameHeader.Text = SR.DigSigSumColumnHeaderName;
nameHeader.Font = columnHeaderFont;
nameHeader.MinimumSize = new Size(IconWidth + SummaryNameTextWidth, 0);
nameHeader.MaximumSize = new Size(IconWidth + SummaryNameTextWidth, 0);
nameHeader.Margin = columnMargin;
nameHeader.Padding = columnPadding;
Label intentHeader = new Label();
intentHeader.AutoSize = true;
intentHeader.Text = SR.DigSigSumColumnHeaderIntent;
intentHeader.Font = columnHeaderFont;
intentHeader.MinimumSize = new Size(IntentTextWidth, 0);
intentHeader.MaximumSize = new Size(IntentTextWidth, 0);
intentHeader.Margin = columnMargin;
intentHeader.Padding = columnPadding;
Label locationHeader = new Label();
locationHeader.AutoSize = true;
locationHeader.Text = SR.DigSigSumColumnHeaderLocale;
locationHeader.Font = columnHeaderFont;
locationHeader.MinimumSize = new Size(LocaleTextWidth, 0);
locationHeader.MaximumSize = new Size(LocaleTextWidth, 0);
locationHeader.Margin = columnMargin;
locationHeader.Padding = columnPadding;
Label signByHeader = new Label();
signByHeader.AutoSize = true;
signByHeader.Text = SR.DigSigSumColumnHeaderSignBy;
signByHeader.Font = columnHeaderFont;
signByHeader.MinimumSize = new Size(SignByTextWidth, 0);
signByHeader.MaximumSize = new Size(SignByTextWidth, 0);
signByHeader.Margin = columnMargin;
signByHeader.Padding = columnPadding;
_columnHeaderPanel.Controls.Add(nameHeader);
_columnHeaderPanel.Controls.Add(intentHeader);
_columnHeaderPanel.Controls.Add(locationHeader);
_columnHeaderPanel.Controls.Add(signByHeader);
}
else
{
Label statusHeader = new Label();
statusHeader.AutoSize = true;
statusHeader.Text = SR.DigSigSumColumnHeaderSignatureStatus;
statusHeader.Font = columnHeaderFont;
statusHeader.MaximumSize = new Size(IconWidth + SummaryNameTextWidth,0);
statusHeader.MinimumSize = new Size(IconWidth + SummaryNameTextWidth, 0);
statusHeader.Margin = columnMargin;
statusHeader.Padding = columnPadding;
Label intentHeader = new Label();
intentHeader.AutoSize = true;
intentHeader.Text = SR.DigSigSumColumnHeaderIntent;
intentHeader.Font = columnHeaderFont;
intentHeader.MinimumSize = new Size(IntentTextWidth, 0);
intentHeader.MaximumSize = new Size(IntentTextWidth, 0);
intentHeader.Margin = columnMargin;
intentHeader.Padding = columnPadding;
_columnHeaderPanel.Controls.Add(statusHeader);
_columnHeaderPanel.Controls.Add(intentHeader);
}
}
/// <summary>
/// AddDigSig add the Dig Sig to the ListBox.
/// </summary>
/// <param name="rds">The IDigitalSignature to add to the ListBox.</param>
/// <returns></returns>
private void AddDigSig(SignatureResources signatureResources)
{
//Add the item to the ListBox.
_listBoxSummary.Items.Add(signatureResources);
}
/// <summary>
/// _buttonDone_Click Handles the "Done" button click event.
/// </summary>
/// <param name="sender">sender object</param>
/// <param name="e">EventArgs</param>
/// <returns></returns>
private void _buttonDone_Click(object sender, EventArgs e)
{
if (_showRequestDialog && _listBoxSummary.Items.Count > 0)
{
if (System.Windows.MessageBox.Show(
SR.DigitalSignatureMessageSignNow,
SR.DigitalSignatureMessageSignNowTitle,
System.Windows.MessageBoxButton.YesNo,
System.Windows.MessageBoxImage.Exclamation
) == System.Windows.MessageBoxResult.Yes)
{
//Call the DocumentSignatureManager OnSign method.
_documentSignatureManager.OnSign(null, this.Handle);
}
}
Close();
}
/// <summary>
/// _buttonSign_Click Handles the "Sign" button click event.
/// </summary>
/// <param name="sender">sender object</param>
/// <param name="e">EventArgs</param>
/// <returns></returns>
private void _buttonSign_Click(object sender, EventArgs e)
{
//verify that something is selected.
if (_listBoxSummary.SelectedIndex >= 0)
{
//Call the DocumentSignatureManager OnSign method.
_documentSignatureManager.OnSign(
(SignatureResources)_listBoxSummary.Items[_listBoxSummary.SelectedIndex],
this.Handle);
}
else
{
//Nothing was selected so this is a regular sign.
//Call the DocumentSignatureManager OnSign method.
_documentSignatureManager.OnSign(null, this.Handle);
}
RefreshSignatureList(false);
}
/// <summary>
/// _buttonViewCert_Click Handles the "View Certificate" button click event.
/// </summary>
/// <param name="sender">sender object</param>
/// <param name="e">EventArgs</param>
private void _buttonViewCert_Click(object sender, EventArgs e)
{
//verify that something is selected.
if (_listBoxSummary.SelectedIndex >= 0)
{
_documentSignatureManager.OnCertificateView(
(SignatureResources)_listBoxSummary.Items[_listBoxSummary.SelectedIndex],
this.Handle);
}
}
/// <summary>
/// _buttonRequestAdd_Click Handles the Request "Add" button click event.
/// </summary>
/// <param name="sender">sender object</param>
/// <param name="e">EventArgs</param>
/// <returns></returns>
private void _buttonRequestAdd_Click(object sender, EventArgs e)
{
//Create and show the Request Signature Dialog (modal)
_documentSignatureManager.OnSummaryAdd();
RefreshSignatureList(true);
}
/// <summary>
/// _buttonRequestDelete_Click Handles the Request "Delete" button click event.
/// </summary>
/// <param name="sender">sender object</param>
/// <param name="e">EventArgs</param>
/// <returns></returns>
private void _buttonRequestDelete_Click(object sender, EventArgs e)
{
//verify that something is selected.
if (_listBoxSummary.SelectedIndex >= 0)
{
//Create and show the Signature Details Dialog (modal)
_documentSignatureManager.OnSummaryDelete(
(SignatureResources)
_listBoxSummary.Items[_listBoxSummary.SelectedIndex]
);
RefreshSignatureList(true);
}
}
/// <summary>
/// Event handler for when the document's signature status changes. This forces the dialog
/// to refresh the list of signatures and status.
/// </summary>
/// <param name="sender">Sender (not used)</param>
/// <param name="args">Event arguments (not used)</param>
private void OnSignatureStatusChange(object sender, DocumentSignatureManager.SignatureStatusEventArgs args)
{
// Save the selected index of the list box so it can be restored
int selectedIndex = _listBoxSummary.SelectedIndex;
RefreshSignatureList(_showRequestDialog);
_listBoxSummary.SelectedIndex = selectedIndex;
}
/// <summary>
/// RefreshSignatureList.
/// </summary>
private void RefreshSignatureList(bool requestOnly)
{
//
//now we need to refresh everything.
//Start by removing all items in the list.
_buttonRequestDelete.Enabled = false;
_buttonViewCert.Enabled = false;
_listBoxSummary.Items.Clear();
//Get a new collection of signatureResources
IList<SignatureResources> signatureResourcesList = _documentSignatureManager.GetSignatureResourceList(requestOnly /*requestsOnly*/);
//Find the signatures applied to this package and add them to the the ListBox
foreach (SignatureResources signatureResources in signatureResourcesList)
{
AddDigSig(signatureResources);
}
}
/// <summary>
/// _listBoxSummary_SelectedIndexChanged Handles the Index Change
/// event for the ListBox. Using to redraw all items so that the font
/// color is corect.
/// </summary>
/// <param name="sender">sender object</param>
/// <param name="e">EventArgs</param>
/// <returns></returns>
private void _listBoxSummary_SelectedIndexChanged(object sender,
EventArgs e)
{
//We should think about optimizing this. We shouldn't Invalidate
//entire control when there is a selection change.
_listBoxSummary.Invalidate();
if (_listBoxSummary.SelectedIndex >= 0)
{
_listBoxSummary.TabStop = true;
_buttonRequestDelete.Enabled = true;
if (_documentSignatureManager.HasCertificate((SignatureResources)_listBoxSummary.Items[_listBoxSummary.SelectedIndex]))
{
_buttonViewCert.Enabled = true;
}
else
{
_buttonViewCert.Enabled = false;
}
//We have selected an item, the AcceptButton is now the
//"View Certificates" button if we're showing the
//Summary dialog.
if (!_showRequestDialog)
{
AcceptButton = _buttonViewCert;
}
}
else
{
_listBoxSummary.TabStop = false;
_buttonViewCert.Enabled = false;
//Nothing selected, put AcceptButton back to defaults
AcceptButton = _showRequestDialog ? _buttonRequestAdd : _buttonSign;
}
}
/// <summary>
/// _listBoxSummary_Resize Handles the ListBox Resize
/// event so all items in the listbox can get redrawn.
/// </summary>
/// <param name="sender">sender object</param>
/// <param name="e">EventArgs</param>
/// <returns></returns>
private void _listBoxSummary_Resize(object sender, EventArgs e)
{
_listBoxSummary.Invalidate();
}
/// <summary>
/// _listBoxSummary_MeasureItem Handles MeasureItem event.
/// </summary>
/// <param name="sender">sender object</param>
/// <param name="e">MeasureItemEventArgs</param>
/// <returns></returns>
private void _listBoxSummary_MeasureItem(object sender, MeasureItemEventArgs e)
{
e.ItemHeight = CalculateItemHeight(e.Graphics,
(SignatureResources)_listBoxSummary.Items[e.Index]
);
}
/// <summary>
/// CalculateItemHeight calculates the height for a ListBox item.
/// </summary>
/// <param name="graphics"></param>
/// <param name="item">ListBoxSummaryItem</param>
/// <returns></returns>
private int CalculateItemHeight(Graphics graphics, SignatureResources item)
{
//
//Determine the height of all the text fields taking into account
//the reserved widths and padding. All height/padding and width are
//non-negative
//
int heightIntent = (int)graphics.MeasureString(item._reason,
_listBoxSummary.Font,
IntentTextWidth - CellPadding.Left - CellPadding.Right).Height;
int heightSummary = 0;
int heightSignBy = 0;
int heightLocale = 0;
if (_showRequestDialog)
{
// For the request dialog, we use the subject name instead of the summary message
heightSummary = (int)graphics.MeasureString(item._subjectName,
_listBoxSummary.Font,
SummaryNameTextWidth - CellPadding.Left - CellPadding.Right).Height;
heightSignBy = (int)graphics.MeasureString(item._signBy,
_listBoxSummary.Font,
SignByTextWidth - CellPadding.Left - CellPadding.Right).Height;
heightLocale = (int)graphics.MeasureString(item._location,
_listBoxSummary.Font,
LocaleTextWidth - CellPadding.Left - CellPadding.Right).Height;
}
else
{
heightSummary = (int)graphics.MeasureString(item._summaryMessage,
_listBoxSummary.Font,
SummaryNameTextWidth - CellPadding.Left - CellPadding.Right).Height;
}
//Want to return the biggest height.
int h = Math.Max(Math.Max(Math.Max(Math.Max(IconHeight,heightSummary), heightIntent), heightLocale), heightSignBy);
//Will return max text height plus the cellpadding.
return h + CellPadding.Top + CellPadding.Bottom;
}
/// <summary>
/// _listBoxSummary_DrawItem handles the DrawItem event.
/// </summary>
/// <param name="sender">object</param>
/// <param name="e">DrawItemEventArgs</param>
/// <returns></returns>
private void _listBoxSummary_DrawItem(object sender, DrawItemEventArgs e)
{
// draws it if this is a valid item
if (e.Index > -1 && e.Index < _listBoxSummary.Items.Count)
{
// if we can draw the item we do
SignatureResources item = (SignatureResources)_listBoxSummary.Items[e.Index];
e.DrawBackground();
DrawListBoxSummaryItem(e.Graphics,
e.Bounds,
item,
_listBoxSummary.SelectedIndex == e.Index
);
e.DrawFocusRectangle();
}
}
/// <summary>
/// DrawListBoxSummaryItem draws the item in the given bounds and
/// taking the reserved widths and padding.
/// </summary>
/// <param name="sender">object</param>
/// <param name="e">DrawItemEventArgs</param>
/// <returns></returns>
private void DrawListBoxSummaryItem(Graphics graphics,
Rectangle bounds,
SignatureResources item,
bool isSelected)
{
StringFormat stringFormat = new StringFormat();
// Determine the StringFormat we use to render our text -- for
// RTL we need to set the DirectionRightToLeft Flag, for LTR
// we use the default.
// Additionally, in RTL we right-align rendered text to its bounding
// rect (StringAlignment.Near).
if (RightToLeft == RightToLeft.Yes)
{
stringFormat.LineAlignment = StringAlignment.Near;
stringFormat.FormatFlags = StringFormatFlags.DirectionRightToLeft;
}
// Calculate the X offsets for the bounding rects for the items we're
// going to display (for RTL the X coordinates are effectively mirrored)
int iconXOffset;
int statusXOffset;
int intentXOffset;
// Flip for RTL Layout
if (RightToLeftLayout)
{
iconXOffset = bounds.Right - (CellPadding.Right + IconWidth);
// We offset the status and intent text by the padding on both sides so that the
// right edge of the text is properly aligned with the column header.
statusXOffset = bounds.Right + CellPadding.Right - (IconWidth + SummaryNameTextWidth);
intentXOffset = bounds.Right + CellPadding.Right + CellPadding.Left -
(IconWidth + SummaryNameTextWidth + IntentTextWidth);
}
else
{
iconXOffset = bounds.Left + CellPadding.Left;
statusXOffset = bounds.Left + IconWidth + CellPadding.Left;
intentXOffset = bounds.Left + IconWidth + SummaryNameTextWidth + CellPadding.Left;
}
// The text color for this item
Brush brush = isSelected ? SystemBrushes.HighlightText : SystemBrushes.ControlText;
//Create bounds to draw Icon
Rectangle iconRect = new Rectangle(
iconXOffset,
bounds.Y + CellPadding.Top,
IconWidth - CellPadding.Left - CellPadding.Right,
bounds.Height - CellPadding.Top - CellPadding.Bottom
);
//All padding and width are non-negative.
//Create bounds to draw Name / Status text
Rectangle statusRect = new Rectangle(
statusXOffset,
bounds.Y + CellPadding.Top,
SummaryNameTextWidth - CellPadding.Left - CellPadding.Right,
bounds.Height - CellPadding.Top - CellPadding.Bottom
);
//Create bounds to draw Intent text
Rectangle intentRect = new Rectangle(
intentXOffset,
bounds.Y + CellPadding.Top,
IntentTextWidth - CellPadding.Left - CellPadding.Right,
bounds.Height - CellPadding.Top - CellPadding.Bottom
);
if (_showRequestDialog)
{
int signByXOffset;
int localeXOffset;
//Flip for RTL Layout
if (RightToLeftLayout)
{
// We offset the sign by and locale text by the padding on both sides so that the
// right edge of the text is properly aligned with the column header.
signByXOffset = bounds.Left + CellPadding.Left + CellPadding.Right;
localeXOffset = bounds.Left + CellPadding.Left + CellPadding.Right + SignByTextWidth;
}
else
{
signByXOffset = bounds.Left + IconWidth + SummaryNameTextWidth + IntentTextWidth + SignByTextWidth + CellPadding.Left;
localeXOffset = bounds.Left + IconWidth + SummaryNameTextWidth + IntentTextWidth + CellPadding.Left;
}
//Create bounds to draw SignedBy text
Rectangle signByRect = new Rectangle(
signByXOffset,
bounds.Y + CellPadding.Top,
SignByTextWidth - CellPadding.Left - CellPadding.Right,
bounds.Height - CellPadding.Top - CellPadding.Bottom
);
//Create bounds to draw Locale text
Rectangle localeRect = new Rectangle(
localeXOffset,
bounds.Y + CellPadding.Top,
LocaleTextWidth - CellPadding.Left - CellPadding.Right,
bounds.Height - CellPadding.Top - CellPadding.Bottom
);
//Draw the Name Text
graphics.DrawString(item._subjectName,
_listBoxSummary.Font,
brush,
statusRect,
stringFormat);
//Draw the SignedBy Text
graphics.DrawString(item._signBy,
_listBoxSummary.Font,
brush,
signByRect,
stringFormat);
//Draw the locale Text
graphics.DrawString(item._location,
_listBoxSummary.Font,
brush,
localeRect,
stringFormat);
}
else
{
//Draw the summary text
graphics.DrawString(item._summaryMessage,
_listBoxSummary.Font,
brush,
statusRect,
stringFormat);
//Draw the icon
Debug.Assert(item._displayImage != null, "Signature icon is null");
if (item._displayImage != null)
{
graphics.DrawImage(item._displayImage, iconRect.Location);
}
}
//Draw the Intent Text
graphics.DrawString(item._reason,
_listBoxSummary.Font,
brush,
intentRect,
stringFormat);
}
#endregion Private Methods
#region Protected Methods
//------------------------------------------------------
//
// Protected Methods
//
//------------------------------------------------------
protected override void ApplyResources()
{
base.ApplyResources();
//Get string from stringtable.
_buttonDone.Text = SR.DigSigSumDone;
_buttonSign.Text = SR.DigSigSumSign;
_buttonViewCert.Text = SR.DigSigSumViewCert;
_buttonRequestAdd.Text = SR.DigSigSumRequestAdd;
_buttonRequestDelete.Text = SR.DigSigSumRequestDelete;
}
#endregion Protected Methods
#region Private Fields
//------------------------------------------------------
//
// Private Fields
//
//------------------------------------------------------
private DocumentSignatureManager _documentSignatureManager;
private bool _showRequestDialog;
/// <summary>
/// The padding around each block of text
/// </summary>
private Padding _cellPadding = new Padding(10);
#endregion Private Fields
}
}
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