private string GetClickScript(DatePickerButtonRenderingContext renderingContext, bool hasClientScript)
{
string script;
if (hasClientScript && renderingContext.Control.Enabled)
{
const string pickerActionButton = "this";
string pickerActionContainer = "document.getElementById ('" + renderingContext.Control.ContainerControlID.Replace('$', '_') + "')";
string pickerActionTarget = "document.getElementById ('" + renderingContext.Control.TargetControlID.Replace('$', '_') + "')";
string pickerUrl = "'" + GetDatePickerUrl() + "'";
Unit popUpWidth = PopUpWidth;
string pickerWidth = "'" + popUpWidth + "'";
Unit popUpHeight = PopUpHeight;
string pickerHeight = "'" + popUpHeight + "'";
script = "DatePicker_ShowDatePicker("
+ pickerActionButton + ", "
+ pickerActionContainer + ", "
+ pickerActionTarget + ", "
+ pickerUrl + ", "
+ pickerWidth + ", "
+ pickerHeight + ");"
+ "return false;";
}
else
{
script = "return false;";
}
return(script);
}
protected bool DetermineClientScriptLevel(DatePickerButtonRenderingContext renderingContext)
{
if (!renderingContext.Control.EnableClientScript)
{
return(false);
}
return(_clientScriptBehavior.IsBrowserCapableOfScripting(renderingContext.HttpContext, renderingContext.Control));
}
/// <summary>
/// Renders a click-enabled image that shows a <see cref="DatePickerPage"/> on click, which puts the selected value
/// into the control specified by <see cref="P:Control.TargetControlID"/>.
/// </summary>
public void Render(DatePickerButtonRenderingContext renderingContext)
{
ArgumentUtility.CheckNotNull("renderingContext", renderingContext);
bool hasClientScript = DetermineClientScriptLevel(renderingContext);
renderingContext.Writer.AddAttribute(HtmlTextWriterAttribute.Id, renderingContext.Control.ClientID);
string cssClass = string.IsNullOrEmpty(renderingContext.Control.CssClass) ? CssClassBase : renderingContext.Control.CssClass;
if (!renderingContext.Control.Enabled)
{
cssClass += " " + CssClassDisabled;
}
renderingContext.Writer.AddAttribute(HtmlTextWriterAttribute.Class, cssClass);
// TODO: hyperLink.ApplyStyle (Control.DatePickerButtonStyle);
bool canScript = (renderingContext.Control.EnableClientScript && renderingContext.Control.IsDesignMode) || hasClientScript;
if (canScript)
{
string script = GetClickScript(renderingContext, hasClientScript);
renderingContext.Writer.AddAttribute(HtmlTextWriterAttribute.Onclick, script);
renderingContext.Writer.AddAttribute(HtmlTextWriterAttribute.Href, "#");
}
if (!renderingContext.Control.Enabled)
{
renderingContext.Writer.AddAttribute(HtmlTextWriterAttribute.Disabled, "disabled");
}
renderingContext.Writer.RenderBeginTag(HtmlTextWriterTag.A);
if (canScript)
{
string imageUrl = GetResolvedImageUrl();
renderingContext.Writer.AddAttribute(HtmlTextWriterAttribute.Src, imageUrl);
renderingContext.Writer.AddAttribute(HtmlTextWriterAttribute.Alt, renderingContext.Control.AlternateText ?? string.Empty);
renderingContext.Writer.RenderBeginTag(HtmlTextWriterTag.Img);
renderingContext.Writer.RenderEndTag();
}
renderingContext.Writer.RenderEndTag();
}
