private void RegisterStarupScriptIfNeeded(BocBooleanValueRenderingContext renderingContext, BocBooleanValueResourceSet resourceSet)
{
string startUpScriptKey = s_startUpScriptKeyPrefix + resourceSet.ResourceKey;
if (!renderingContext.Control.Page.ClientScript.IsStartupScriptRegistered(typeof(BocBooleanValueRenderer), startUpScriptKey))
{
string trueValue = true.ToString();
string falseValue = false.ToString();
string nullValue = c_nullString;
string startupScript = string.Format(
"BocBooleanValue_InitializeGlobals ('{0}', '{1}', '{2}', '{3}', '{4}', '{5}', '{6}', '{7}', '{8}', '{9}');",
resourceSet.ResourceKey,
trueValue,
falseValue,
nullValue,
ScriptUtility.EscapeClientScript(resourceSet.DefaultTrueDescription),
ScriptUtility.EscapeClientScript(resourceSet.DefaultFalseDescription),
ScriptUtility.EscapeClientScript(resourceSet.DefaultNullDescription),
resourceSet.TrueIconUrl,
resourceSet.FalseIconUrl,
resourceSet.NullIconUrl);
renderingContext.Control.Page.ClientScript.RegisterStartupScriptBlock(
renderingContext.Control,
typeof(BocBooleanValueRenderer),
startUpScriptKey,
startupScript);
}
}
private void PrepareLinkControl(BocBooleanValueRenderingContext renderingContext, HyperLink linkControl, bool isClientScriptEnabled)
{
if (!isClientScriptEnabled)
{
return;
}
linkControl.Attributes.Add("onkeydown", "BocBooleanValue_OnKeyDown (this);");
linkControl.Attributes.Add("href", "#");
linkControl.Enabled = renderingContext.Control.Enabled;
}
private string GetClickScript(
BocBooleanValueRenderingContext renderingContext,
BocBooleanValueResourceSet resourceSet,
bool isEnabled)
{
string script = "return false;";
if (!isEnabled)
{
return(script);
}
string requiredFlag = renderingContext.Control.IsRequired ? "true" : "false";
var scriptBuilder = new StringBuilder(500);
scriptBuilder.Append("BocBooleanValue_SelectNextCheckboxValue (");
scriptBuilder.Append("'").Append(resourceSet.ResourceKey).Append("'");
scriptBuilder.Append(", ");
scriptBuilder.Append("$(this).parent().children('a').children('img').first()[0]");
scriptBuilder.Append(", ");
if (renderingContext.Control.ShowDescription)
{
scriptBuilder.Append("$(this).parent().children('span').first()[0]");
}
else
{
scriptBuilder.Append("null");
}
scriptBuilder.Append(", ");
scriptBuilder.Append("$(this).parent().children('input').first()[0]");
scriptBuilder.Append(", ");
scriptBuilder.Append(requiredFlag);
scriptBuilder.Append(", ");
AppendStringValueOrNullToScript(scriptBuilder, renderingContext.Control.TrueDescription);
scriptBuilder.Append(", ");
AppendStringValueOrNullToScript(scriptBuilder, renderingContext.Control.FalseDescription);
scriptBuilder.Append(", ");
AppendStringValueOrNullToScript(scriptBuilder, renderingContext.Control.NullDescription);
scriptBuilder.Append(");");
if (renderingContext.Control.IsAutoPostBackEnabled)
{
scriptBuilder.Append(renderingContext.Control.Page.ClientScript.GetPostBackEventReference(renderingContext.Control, "")).Append(";");
}
scriptBuilder.Append("return false;");
return(scriptBuilder.ToString());
}
private void PrepareVisibleControls(
BocBooleanValueRenderingContext renderingContext,
BocBooleanValueResourceSet resourceSet,
Image imageControl,
Label labelControl)
{
string imageUrl;
string description;
if (!renderingContext.Control.Value.HasValue)
{
imageUrl = resourceSet.NullIconUrl;
description = string.IsNullOrEmpty(renderingContext.Control.NullDescription)
? resourceSet.DefaultNullDescription
: renderingContext.Control.NullDescription;
}
else if (renderingContext.Control.Value.Value)
{
imageUrl = resourceSet.TrueIconUrl;
description = string.IsNullOrEmpty(renderingContext.Control.TrueDescription)
? resourceSet.DefaultTrueDescription
: renderingContext.Control.TrueDescription;
}
else
{
imageUrl = resourceSet.FalseIconUrl;
description = string.IsNullOrEmpty(renderingContext.Control.FalseDescription)
? resourceSet.DefaultFalseDescription
: renderingContext.Control.FalseDescription;
}
imageControl.AlternateText = description;
imageControl.ImageUrl = imageUrl;
if (renderingContext.Control.ShowDescription)
{
labelControl.Text = description;
}
labelControl.Width = Unit.Empty;
labelControl.Height = Unit.Empty;
labelControl.ApplyStyle(renderingContext.Control.LabelStyle);
}
/// <summary>
/// Renders an image and a label. In edit mode, the image is wrapped in a hyperlink that is
/// scripted to respond to clicks and change the "checkbox" state accordingly;
/// in addition, the state is put into an additional hidden field.
/// </summary>
public void Render(BocBooleanValueRenderingContext renderingContext)
{
ArgumentUtility.CheckNotNull("renderingContext", renderingContext);
var resourceSet = _resourceSetFactory.CreateResourceSet(renderingContext.Control);
AddAttributesToRender(renderingContext);
renderingContext.Writer.RenderBeginTag(HtmlTextWriterTag.Span);
var labelControl = new Label();
var imageControl = new Image();
var hiddenFieldControl = new HiddenField {
ID = renderingContext.Control.GetValueName(), ClientIDMode = ClientIDMode.Static
};
var dataValueReadOnlyControl = new Label {
ID = renderingContext.Control.GetValueName(), ClientIDMode = ClientIDMode.Static
};
var linkControl = new HyperLink {
ID = renderingContext.Control.GetDisplayValueName(), ClientIDMode = ClientIDMode.Static
};
bool isClientScriptEnabled = DetermineClientScriptLevel(renderingContext);
if (isClientScriptEnabled)
{
if (renderingContext.Control.Enabled)
{
RegisterStarupScriptIfNeeded(renderingContext, resourceSet);
}
var script = GetClickScript(
renderingContext,
resourceSet,
renderingContext.Control.Enabled);
labelControl.Attributes.Add("onclick", script);
linkControl.Attributes.Add("onclick", script);
}
PrepareLinkControl(renderingContext, linkControl, isClientScriptEnabled);
PrepareVisibleControls(renderingContext, resourceSet, imageControl, labelControl);
if (!renderingContext.Control.IsReadOnly)
{
hiddenFieldControl.Value = renderingContext.Control.Value.HasValue ? renderingContext.Control.Value.ToString() : c_nullString;
hiddenFieldControl.Visible = true;
hiddenFieldControl.RenderControl(renderingContext.Writer);
}
else
{
if (renderingContext.Control.Value.HasValue)
{
dataValueReadOnlyControl.Attributes.Add("data-value", renderingContext.Control.Value.Value.ToString());
}
dataValueReadOnlyControl.RenderControl(renderingContext.Writer);
}
linkControl.Controls.Add(imageControl);
linkControl.RenderControl(renderingContext.Writer);
labelControl.RenderControl(renderingContext.Writer);
renderingContext.Writer.RenderEndTag();
}
private string GetImageName(BocBooleanValueRenderingContext renderingContext)
{
return(renderingContext.Control.ClientID + "_Image");
}
private string GetLabelName(BocBooleanValueRenderingContext renderingContext)
{
return(renderingContext.Control.ClientID + "_LabelValue");
}
private bool DetermineClientScriptLevel(BocBooleanValueRenderingContext renderingContext)
{
return(!renderingContext.Control.IsDesignMode && !renderingContext.Control.IsReadOnly);
}
