private void PrepareLabel(BocCheckBoxRenderingContext renderingContext, string description, Label labelControl)
{
if (renderingContext.Control.IsDescriptionEnabled)
{
labelControl.Text = description;
labelControl.Width = Unit.Empty;
labelControl.Height = Unit.Empty;
labelControl.ApplyStyle(renderingContext.Control.LabelStyle);
}
}
private void PrepareImage(BocCheckBoxRenderingContext renderingContext, Image imageControl, string description)
{
var imageUrl = ResourceUrlFactory.CreateResourceUrl(
typeof(BocCheckBoxQuirksModeRenderer),
ResourceType.Image,
renderingContext.Control.Value.Value ? c_trueIcon : c_falseIcon);
imageControl.ImageUrl = imageUrl.GetUrl();
imageControl.AlternateText = description ?? string.Empty;
imageControl.GenerateEmptyAlternateText = true;
imageControl.Style["vertical-align"] = "middle";
}
private void RegisterStartupScriptIfNeeded(BocCheckBoxRenderingContext renderingContext)
{
if (renderingContext.Control.Page.ClientScript.IsStartupScriptRegistered(typeof(BocCheckBoxQuirksModeRenderer), s_startUpScriptKey))
{
return;
}
string startupScript = string.Format(
"BocCheckBox_InitializeGlobals ('{0}', '{1}');",
renderingContext.Control.DefaultTrueDescription,
renderingContext.Control.DefaultFalseDescription);
renderingContext.Control.Page.ClientScript.RegisterStartupScriptBlock(renderingContext.Control, typeof(BocCheckBoxQuirksModeRenderer), s_startUpScriptKey, startupScript);
}
private string GetDescription(BocCheckBoxRenderingContext renderingContext)
{
string trueDescription = null;
string falseDescription = null;
if (renderingContext.Control.IsDescriptionEnabled)
{
string defaultTrueDescription = renderingContext.Control.DefaultTrueDescription;
string defaultFalseDescription = renderingContext.Control.DefaultFalseDescription;
trueDescription = (string.IsNullOrEmpty(renderingContext.Control.TrueDescription) ? defaultTrueDescription : renderingContext.Control.TrueDescription);
falseDescription = (string.IsNullOrEmpty(renderingContext.Control.FalseDescription) ? defaultFalseDescription : renderingContext.Control.FalseDescription);
}
return(renderingContext.Control.Value.Value ? trueDescription : falseDescription);
}
private string GetScriptParameters(BocCheckBoxRenderingContext renderingContext)
{
string label = renderingContext.Control.IsDescriptionEnabled ? "document.getElementById ('" + GetLabelName(renderingContext) + "')" : "null";
string checkBox = "document.getElementById ('" + renderingContext.Control.GetValueName() + "')";
string script = " ("
+ checkBox + ", "
+ label + ", "
+ (string.IsNullOrEmpty(renderingContext.Control.TrueDescription) ? "null" : "'" + renderingContext.Control.TrueDescription + "'") + ", "
+ (string.IsNullOrEmpty(renderingContext.Control.FalseDescription) ? "null" : "'" + renderingContext.Control.FalseDescription + "'") + ");";
if (renderingContext.Control.IsAutoPostBackEnabled)
{
script += renderingContext.Control.Page.ClientScript.GetPostBackEventReference(renderingContext.Control, "") + ";";
}
return(script);
}
/// <summary>
/// Renders an image and label in readonly mode, a checkbox and label in edit mode.
/// </summary>
public void Render(BocCheckBoxRenderingContext renderingContext)
{
ArgumentUtility.CheckNotNull("renderingContext", renderingContext);
AddAttributesToRender(renderingContext, false);
renderingContext.Writer.RenderBeginTag(HtmlTextWriterTag.Span);
Label labelControl = new Label {
ID = GetLabelName(renderingContext), ClientIDMode = ClientIDMode.Static
};
HtmlInputCheckBox checkBoxControl = new HtmlInputCheckBox {
ID = renderingContext.Control.GetValueName(), ClientIDMode = ClientIDMode.Static
};
Image imageControl = new Image {
ID = renderingContext.Control.ClientID + "Image"
};
string description = GetDescription(renderingContext);
if (renderingContext.Control.IsReadOnly)
{
PrepareImage(renderingContext, imageControl, description);
PrepareLabel(renderingContext, description, labelControl);
imageControl.RenderControl(renderingContext.Writer);
labelControl.RenderControl(renderingContext.Writer);
}
else
{
bool hasClientScript = DetermineClientScriptLevel(renderingContext);
if (hasClientScript)
{
PrepareScripts(renderingContext, checkBoxControl, labelControl);
}
checkBoxControl.Checked = renderingContext.Control.Value.Value;
checkBoxControl.Disabled = !renderingContext.Control.Enabled;
PrepareLabel(renderingContext, description, labelControl);
checkBoxControl.RenderControl(renderingContext.Writer);
labelControl.RenderControl(renderingContext.Writer);
}
renderingContext.Writer.RenderEndTag();
}
private void PrepareScripts(BocCheckBoxRenderingContext renderingContext, HtmlInputCheckBox checkBoxControl, Label labelControl)
{
string checkBoxScript;
string labelScript;
if (renderingContext.Control.Enabled)
{
RegisterStartupScriptIfNeeded(renderingContext);
string script = GetScriptParameters(renderingContext);
checkBoxScript = "BocCheckBox_OnClick" + script;
labelScript = "BocCheckBox_ToggleCheckboxValue" + script;
}
else
{
checkBoxScript = "return false;";
labelScript = "return false;";
}
checkBoxControl.Attributes.Add("onclick", checkBoxScript);
labelControl.Attributes.Add("onclick", labelScript);
}
private string GetLabelName(BocCheckBoxRenderingContext renderingContext)
{
return(renderingContext.Control.ClientID + "_TextValue");
}
private bool DetermineClientScriptLevel(BocCheckBoxRenderingContext renderingContext)
{
return(!renderingContext.Control.IsDesignMode);
}
