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//------------------------------------------------------------------------------
// <copyright file="DesignerForm.cs" company="Microsoft">
// Copyright (c) Microsoft Corporation. All rights reserved.
// </copyright>
//------------------------------------------------------------------------------
namespace System.Web.UI.Design.MobileControls {
using System;
using System.Collections;
using System.ComponentModel;
using System.ComponentModel.Design;
using System.Diagnostics;
using System.Drawing;
using System.Globalization;
using System.Windows.Forms;
using System.Windows.Forms.Design;
using System.Web.UI.MobileControls;
using Form = System.Windows.Forms.Form;
/*
*/
/// <devdoc>
/// Represents a form used by a designer.
/// </devdoc>
[Obsolete("The System.Web.Mobile.dll assembly has been deprecated and should no longer be used. For information about how to develop ASP.NET mobile applications, see http://go.microsoft.com/fwlink/?LinkId=157231.")]
internal abstract class DesignerForm : Form {
private const int SC_CONTEXTHELP = 0xF180;
private const int WM_SYSCOMMAND = 0x0112;
private IServiceProvider _serviceProvider;
private bool _firstActivate;
/// <devdoc>
/// Creates a new DesignerForm with a given service provider.
/// </devdoc>
protected DesignerForm(IServiceProvider serviceProvider) {
Debug.Assert(serviceProvider != null);
_serviceProvider = serviceProvider;
_firstActivate = true;
IUIService uiService = (IUIService)GetService(typeof(IUIService));
if (uiService != null) {
IDictionary uiStyles = uiService.Styles;
Font dialogFont = (Font)uiStyles["DialogFont"];
Debug.Assert(dialogFont != null, "Did not get a dialog font to use from IUIService");
Font = dialogFont;
}
// Set RightToLeft mode based on resource file
string rtlText = SR.GetString(SR.RTL);
if (!String.Equals(rtlText, "RTL_False", StringComparison.Ordinal)) {
RightToLeft = RightToLeft.Yes;
}
HelpButton = true;
MinimizeBox = false;
MaximizeBox = false;
ShowIcon = false;
ShowInTaskbar = false;
StartPosition = System.Windows.Forms.FormStartPosition.CenterParent;
}
/// <devdoc>
/// The service provider for the form.
/// </devdoc>
protected internal IServiceProvider ServiceProvider {
get {
return _serviceProvider;
}
}
/// <devdoc>
/// Frees up resources.
/// </devdoc>
protected override void Dispose(bool disposing) {
if (disposing) {
_serviceProvider = null;
}
base.Dispose(disposing);
}
/// <devdoc>
/// Gets a service of the desired type. Returns null if the service does not exist or there is no service provider.
/// </devdoc>
protected override object GetService(Type serviceType) {
if (_serviceProvider != null) {
return _serviceProvider.GetService(serviceType);
}
return null;
}
protected override void OnActivated(EventArgs e) {
base.OnActivated(e);
if (_firstActivate) {
_firstActivate = false;
OnInitialActivated(e);
}
}
/// <devdoc>
/// Returns the help topic for the form. Consult with your UE contact on
/// what the appropriate help topic is for your dialog.
/// </devdoc>
protected abstract string HelpTopic {
get;
}
protected sealed override void OnHelpRequested(HelpEventArgs hevent) {
ShowHelp();
hevent.Handled = true;
}
/// <summary>
/// Raised upon first activation of the form.
/// </summary>
/// <param name="e"></param>
protected virtual void OnInitialActivated(EventArgs e) {
}
/// <devdoc>
/// Launches the help for this form.
/// </devdoc>
private void ShowHelp() {
if (ServiceProvider != null) {
IHelpService helpService = (IHelpService)ServiceProvider.GetService(typeof(IHelpService));
if (helpService != null) {
helpService.ShowHelpFromKeyword(HelpTopic);
}
}
}
/// <devdoc>
/// Overridden to reroute the context-help button to our own handler.
/// </devdoc>
protected override void WndProc(ref Message m) {
if ((m.Msg == WM_SYSCOMMAND) && ((int)m.WParam == SC_CONTEXTHELP)) {
ShowHelp();
return;
}
else {
base.WndProc(ref m);
}
}
}
}
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