private KryptonMessageBox(string text, string caption,
MessageBoxButtons buttons, MessageBoxIcon icon,
MessageBoxDefaultButton defaultButton, MessageBoxOptions options,
HelpInfo helpInfo)
{
// Store incoming values
_text = text;
_caption = caption;
_buttons = buttons;
_icon = icon;
_defaultButton = defaultButton;
_options = options;
_helpInfo = helpInfo;
// Create the form contents
InitializeComponent();
// Update contents to match requirements
UpdateText();
UpdateIcon();
UpdateButtons();
UpdateDefault();
UpdateHelp();
// Finally calculate and set form sizing
UpdateSizing();
}
private static DialogResult ShowCore(IWin32Window owner, string text, string caption,
MessageBoxButtons buttons, MessageBoxIcon icon, MessageBoxDefaultButton defaultButton,
MessageBoxOptions options, HelpInfo hpi)
{
DialogResult result = DialogResult.None;
try
{
PushHelpInfo(hpi);
result = ShowCore(owner, text, caption, buttons, icon, defaultButton, options, true);
}
finally
{
PopHelpInfo();
}
return(result);
}
string GetHelpMessage(HelpInfo helpInfo)
{
if (helpInfo == null)
return null;
return string.Format(_helpMessageFormat, helpInfo.DisplayName);
}
/// <summary>
/// Adds the help for a control.
/// </summary>
/// <param name="control">The control to add the help for.</param>
/// <param name="displayName">The name to display in the status bar.</param>
/// <param name="wikiPage">The wiki page to navigate to.</param>
void AddInternal(object control, string displayName, string wikiPage)
{
_helpInfos[control] = new HelpInfo { DisplayName = displayName, WikiPage = wikiPage };
SetEventListeners(control, false);
SetEventListeners(control, true);
}
/// <summary>
/// Displays a message box with specified text, caption, style, Help file Path and HelpNavigator for IWin32Window.
/// </summary>
public static DialogResult Show(IWin32Window owner, string text, string caption, MessageBoxButtons buttons, MessageBoxIcon icon,
MessageBoxDefaultButton defaultButton, MessageBoxOptions options, string helpFilePath, HelpNavigator navigator)
{
HelpInfo hpi = new HelpInfo(helpFilePath, navigator);
return ShowCore(owner, text, caption, buttons, icon, defaultButton, options, hpi);
}
/// <summary>
/// Displays a message box with specified text, caption, style, Help file Path and keyword.
/// </summary>
public static DialogResult Show(string text, string caption, MessageBoxButtons buttons, MessageBoxIcon icon,
MessageBoxDefaultButton defaultButton, MessageBoxOptions options, string helpFilePath, string keyword)
{
HelpInfo hpi = new HelpInfo(helpFilePath, keyword);
return ShowCore(null, text, caption, buttons, icon, defaultButton, options, hpi);
}
private static void PopHelpInfo() {
// we roll our own stack here because we want a pretty lightweight implementation.
// usually there's only going to be one message box shown at a time. But if
// someone shows two message boxes (say by launching them via a WM_TIMER message)
// we've got to gracefully handle the current help info.
if (helpInfoTable == null) {
Debug.Fail("Why are we being called when there's nothing to pop?");
}
else {
if (helpInfoTable.Length == 1) {
helpInfoTable = null;
}
else {
int newCount = helpInfoTable.Length -1;
HelpInfo[] newTable = new HelpInfo[newCount];
Array.Copy(helpInfoTable, newTable, newCount);
helpInfoTable = newTable;
}
}
}
private static DialogResult InternalShow(IWin32Window owner,
string text, string caption,
MessageBoxButtons buttons,
MessageBoxIcon icon,
MessageBoxDefaultButton defaultButton,
MessageBoxOptions options,
HelpInfo helpInfo)
{
// Check if trying to show a message box from a non-interactive process, this is not possible
if (!SystemInformation.UserInteractive && ((options & (MessageBoxOptions.ServiceNotification | MessageBoxOptions.DefaultDesktopOnly)) == 0))
throw new InvalidOperationException("Cannot show modal dialog when non-interactive");
// Check if trying to show a message box from a service and the owner has been specified, this is not possible
if ((owner != null) && ((options & (MessageBoxOptions.ServiceNotification | MessageBoxOptions.DefaultDesktopOnly)) != 0))
throw new ArgumentException("Cannot show message box from a service with an owner specified", "options");
// Check if trying to show a message box from a service and help information is specified, this is not possible
if ((helpInfo != null) && ((options & (MessageBoxOptions.ServiceNotification | MessageBoxOptions.DefaultDesktopOnly)) != 0))
throw new ArgumentException("Cannot show message box from a service with help specified", "options");
// If help information provided or we are not a service/default desktop application then grab an owner for showing the message box
IWin32Window showOwner = null;
if ((helpInfo != null) || ((options & (MessageBoxOptions.ServiceNotification | MessageBoxOptions.DefaultDesktopOnly)) == 0))
{
// If do not have an owner passed in then get the active window and use that instead
if (owner == null)
showOwner = Control.FromHandle(PI.GetActiveWindow());
else
showOwner = owner;
}
// Show message box window as a modal dialog and then dispose of it afterwards
using (KryptonMessageBox kmb = new KryptonMessageBox(text, caption, buttons, icon, defaultButton, options, helpInfo))
{
if (showOwner == null)
kmb.StartPosition = FormStartPosition.CenterScreen;
else
kmb.StartPosition = FormStartPosition.CenterParent;
return kmb.ShowDialog(showOwner);
}
}
private static DialogResult ShowCore(IWin32Window owner, string text, string caption,
MessageBoxButtons buttons, MessageBoxIcon icon, MessageBoxDefaultButton defaultButton,
MessageBoxOptions options, HelpInfo hpi) {
DialogResult result = DialogResult.None;
try {
PushHelpInfo(hpi);
result = ShowCore(owner, text, caption, buttons, icon, defaultButton, options, true);
}
finally {
PopHelpInfo();
}
return result;
}
/// <include file='doc\MessageBox.uex' path='docs/doc[@for="MessageBox.Show20"]/*' />
/// <devdoc>
/// <para>
/// Displays a message box with specified text, caption, style, Help file Path ,HelpNavigator and object for a IWin32Window.
/// </para>
/// </devdoc>
public static DialogResult Show(IWin32Window owner, string text, string caption, MessageBoxButtons buttons, MessageBoxIcon icon,
MessageBoxDefaultButton defaultButton, MessageBoxOptions options, string helpFilePath, HelpNavigator navigator, object param) {
HelpInfo hpi = new HelpInfo(helpFilePath, navigator, param);
return ShowCore(owner, text, caption, buttons, icon, defaultButton, options, hpi);
}
/// <include file='doc\MessageBox.uex' path='docs/doc[@for="MessageBox.Show17"]/*' />
/// <devdoc>
/// <para>
/// Displays a message box with specified text, caption, style, Help file Path and HelpNavigator.
/// </para>
/// </devdoc>
public static DialogResult Show(string text, string caption, MessageBoxButtons buttons, MessageBoxIcon icon,
MessageBoxDefaultButton defaultButton, MessageBoxOptions options,string helpFilePath, HelpNavigator navigator) {
HelpInfo hpi = new HelpInfo(helpFilePath, navigator);
return ShowCore(null, text, caption, buttons, icon, defaultButton, options, hpi);
}
/// <include file='doc\MessageBox.uex' path='docs/doc[@for="MessageBox.Show16"]/*' />
/// <devdoc>
/// <para>
/// Displays a message box with specified text, caption, style, Help file Path and keyword for a IWin32Window.
/// </para>
/// </devdoc>
public static DialogResult Show(IWin32Window owner, string text, string caption, MessageBoxButtons buttons, MessageBoxIcon icon,
MessageBoxDefaultButton defaultButton, MessageBoxOptions options, string helpFilePath, string keyword) {
HelpInfo hpi = new HelpInfo(helpFilePath, keyword);
return ShowCore(owner, text, caption, buttons, icon, defaultButton, options, hpi);
}
private static void PushHelpInfo(HelpInfo hpi) {
// we roll our own stack here because we want a pretty lightweight implementation.
// usually there's only going to be one message box shown at a time. But if
// someone shows two message boxes (say by launching them via a WM_TIMER message)
// we've got to gracefully handle the current help info.
int lastCount = 0;
HelpInfo[] newTable;
if (helpInfoTable == null) {
newTable = new HelpInfo[lastCount+1];
}
else {
// if we already have a table - allocate a new slot
lastCount = helpInfoTable.Length;
newTable = new HelpInfo[lastCount+1];
Array.Copy(helpInfoTable, newTable, lastCount);
}
newTable[lastCount] = hpi;
helpInfoTable = newTable;
}