DesignerCommandAdapter.cs source code in C# .NET

Source code for the .NET framework in C#

                        
Code:

                         / 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / fx / src / MIT / System / Web / UI / MobileControls / Design / Adapters / DesignerCommandAdapter.cs / 1305376 / DesignerCommandAdapter.cs
                        

                        
                            //------------------------------------------------------------------------------ 
// 
//     Copyright (c) Microsoft Corporation.  All rights reserved.
// 
//----------------------------------------------------------------------------- 

using System.Globalization; 
using System.IO; 
using System.Web.Mobile;
using System.Web.UI.Design.MobileControls; 
using System.Web.UI.MobileControls;
using System.Web.UI.MobileControls.Adapters;

namespace System.Web.UI.Design.MobileControls.Adapters 
{
    [ 
        System.Security.Permissions.SecurityPermission(System.Security.Permissions.SecurityAction.Demand, 
        Flags=System.Security.Permissions.SecurityPermissionFlag.UnmanagedCode)
    ] 
    [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 class DesignerCommandAdapter : HtmlCommandAdapter
    {
        // required width may differ a little bit from actual exact pixel value 
        private const int SAFETY_MARGIN = 8;
 
        public override MobileCapabilities Device 
        {
            get 
            {
                return DesignerCapabilities.Instance;
            }
        } 

        public override void Render(HtmlMobileTextWriter writer) 
        { 
            // Invalid text writers are not supported in this Adapter.
            if (!(writer is DesignerTextWriter)) 
            {
                return;
            }
 
            Alignment alignment = (Alignment)Style[Style.AlignmentKey, true];
            byte templateStatus; 
            int maxWidth = DesignerAdapterUtil.GetMaxWidthToFit(Control, out templateStatus); 
            String width = DesignerAdapterUtil.GetWidth(Control);
 
            if (Control.ImageUrl.Length == 0)
            {
                if (Control.Format == CommandFormat.Button)
                { 
                    if (maxWidth == 0 && templateStatus == DesignerAdapterUtil.CONTROL_IN_TEMPLATE_NONEDIT)
                    { 
                        maxWidth = DesignerAdapterUtil.CONTROL_MAX_WIDTH_IN_TEMPLATE; 
                    }
 
                    if (maxWidth == 0 && DesignerAdapterUtil.InMobileUserControl(Control))
                    {
                        maxWidth = Constants.ControlMaxsizeAtToplevel;
                    } 

                    if (maxWidth == 0) 
                    { 
                        // Render will be called a second time for which maxWidth != 0
                        return; 
                    }

                    String additionalStyle = null;
                    String controlText = Control.Text; 
                    String commandCaption;
                    int requiredWidth = 0; 
 
                    DesignerTextWriter twTmp;
                    twTmp = new DesignerTextWriter(); 
                    twTmp.WriteBeginTag("input");
                    twTmp.WriteStyleAttribute(Style, null);
                    twTmp.WriteAttribute("type", "submit");
                    twTmp.Write(" value=\""); 
                    twTmp.WriteText(controlText, true);
                    twTmp.Write("\"/>"); 
                    String htmlFragment = twTmp.ToString(); 

                    MSHTMLHostUtil.ApplyStyle(String.Empty, String.Empty, null); 
                    requiredWidth = MSHTMLHostUtil.GetHtmlFragmentWidth(htmlFragment);

                    ((DesignerTextWriter)writer).EnterZeroFontSizeTag();
                    writer.WriteBeginTag("div"); 
                    if (requiredWidth + SAFETY_MARGIN > maxWidth)
                    { 
                        if (templateStatus == DesignerAdapterUtil.CONTROL_IN_TEMPLATE_EDIT) 
                        {
                            int tmpRequiredWidth, allowedLength; 
                            int captionLength = controlText.Length;
                            twTmp = new DesignerTextWriter();
                            twTmp.WriteBeginTag("input");
                            twTmp.WriteStyleAttribute(Style, null); 
                            twTmp.WriteAttribute("type", "submit");
                            twTmp.WriteAttribute("value", "{0}"); 
                            twTmp.Write("/>"); 
                            htmlFragment = twTmp.ToString();
                            // At least 10 characters can fit into the caption of the command 
                            for (allowedLength = (captionLength < 10 ? captionLength : 10); allowedLength <= captionLength; allowedLength++)
                            {
                                tmpRequiredWidth = MSHTMLHostUtil.GetHtmlFragmentWidth(String.Format(CultureInfo.CurrentCulture, htmlFragment, HttpUtility.HtmlEncode(controlText.Substring(0, allowedLength))));
                                if (tmpRequiredWidth + SAFETY_MARGIN > maxWidth) 
                                {
                                    break; 
                                } 
                            }
                            commandCaption = controlText.Substring(0, allowedLength - 1); 
                        }
                        else
                        {
                            commandCaption = controlText; 
                        }
                    } 
                    else 
                    {
                        writer.WriteAttribute("style", "width:" + width); 
                        commandCaption = controlText;
                    }

                    if (alignment != Alignment.NotSet) 
                    {
                        writer.WriteAttribute("align", Enum.GetName(typeof(Alignment), alignment)); 
                    } 
                    writer.Write(">");
 
                    writer.EnterLayout(Style);

                    writer.WriteBeginTag("input");
                    if (requiredWidth + SAFETY_MARGIN > maxWidth) 
                    {
                        additionalStyle = String.Format(CultureInfo.CurrentCulture, "width:{0};", width); 
                    } 
                    ((DesignerTextWriter)writer).WriteStyleAttribute(Style, additionalStyle);
                    writer.WriteAttribute("type", "submit"); 

                    writer.Write(" value=\"");
                    writer.WriteText(commandCaption, true);
                    writer.Write("\"/>"); 

                    writer.ExitLayout(Style); 
                } 
                else
                { 
                    Wrapping wrapping = (Wrapping) Style[Style.WrappingKey, true];
                    bool wrap = (wrapping == Wrapping.Wrap || wrapping == Wrapping.NotSet);

                    ((DesignerTextWriter)writer).EnterZeroFontSizeTag(); 
                    writer.WriteBeginTag("div");
 
                    if (!wrap) 
                    {
                        if (templateStatus == DesignerAdapterUtil.CONTROL_IN_TEMPLATE_EDIT) 
                        {
                            width = maxWidth.ToString(CultureInfo.InvariantCulture) + "px";
                        }
                        writer.WriteAttribute("style", "overflow-x:hidden;width:" + width); 
                    }
                    else 
                    { 
                        writer.WriteAttribute("style", "word-wrap:break-word;width:" + width);
                    } 

                    if (alignment != Alignment.NotSet)
                    {
                        writer.WriteAttribute("align", Enum.GetName(typeof(Alignment), alignment)); 
                    }
                    writer.Write(">"); 
 
                    writer.WriteBeginTag("a");
                    writer.WriteAttribute("href", "NavigationUrl"); 
                    writer.Write(">");
                    ((DesignerTextWriter)writer).WriteCssStyleText(Style, null, Control.Text, true);
                    writer.WriteEndTag("a");
                } 
                writer.WriteEndTag("div");
                ((DesignerTextWriter)writer).ExitZeroFontSizeTag(); 
            } 
            else
            { 
                if (templateStatus == DesignerAdapterUtil.CONTROL_IN_TEMPLATE_EDIT)
                {
                    width = maxWidth.ToString(CultureInfo.InvariantCulture) + "px";
                } 

                writer.WriteBeginTag("div"); 
                if (alignment == Alignment.Center) 
                {
                    writer.WriteAttribute("align", "center"); 
                }
                writer.WriteAttribute("style", "overflow-x:hidden;width:" + width);
                writer.Write(">");
 
                writer.WriteBeginTag("img");
                ((DesignerTextWriter)writer).WriteStyleAttribute(Style); 
                writer.WriteAttribute("src", Control.ImageUrl, true); 

                // center alignment not part of HTML for images. 
                if (alignment == Alignment.Right ||
                    alignment == Alignment.Left)
                {
                    writer.WriteAttribute("align", Enum.GetName(typeof(Alignment), alignment)); 
                }
 
                writer.WriteAttribute("border", "0"); 
                writer.Write(">");
                writer.WriteEndTag("div"); 
            }
        }
    }
} 

// File provided for Reference Use Only by Microsoft Corporation (c) 2007.

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