private string GetClickScript(BocBooleanValueRenderingContext renderingContext, BocBooleanValueResourceSet resourceSet, Image imageControl, Label labelControl, HiddenField hiddenFieldControl, bool isEnabled)
{
string script = "return false;";
if (!isEnabled)
{
return(script);
}
string requiredFlag = renderingContext.Control.IsRequired ? "true" : "false";
string image = "document.getElementById ('" + imageControl.ClientID + "')";
string label = renderingContext.Control.ShowDescription ? "document.getElementById ('" + labelControl.ClientID + "')" : "null";
string hiddenField = "document.getElementById ('" + hiddenFieldControl.ClientID + "')";
script = "BocBooleanValue_SelectNextCheckboxValue ("
+ "'" + resourceSet.ResourceKey + "', "
+ image + ", "
+ label + ", "
+ hiddenField + ", "
+ requiredFlag + ", "
+ (string.IsNullOrEmpty(renderingContext.Control.TrueDescription) ? "null" : "'" + ScriptUtility.EscapeClientScript(renderingContext.Control.TrueDescription) + "'")
+ ", "
+ (string.IsNullOrEmpty(renderingContext.Control.FalseDescription) ? "null" : "'" + ScriptUtility.EscapeClientScript(renderingContext.Control.FalseDescription) + "'")
+ ", "
+ (string.IsNullOrEmpty(renderingContext.Control.NullDescription) ? "null" : "'" + ScriptUtility.EscapeClientScript(renderingContext.Control.NullDescription) + "'")
+ ");";
if (renderingContext.Control.IsAutoPostBackEnabled)
{
script += renderingContext.Control.Page.ClientScript.GetPostBackEventReference(renderingContext.Control, "") + ";";
}
script += "return false;";
return(script);
}
private void RegisterStarupScriptIfNeeded(BocBooleanValueRenderingContext renderingContext, BocBooleanValueResourceSet resourceSet)
{
string startUpScriptKey = s_startUpScriptKeyPrefix + resourceSet.ResourceKey;
if (!renderingContext.Control.Page.ClientScript.IsStartupScriptRegistered(typeof(BocBooleanValueQuirksModeRenderer), 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(BocBooleanValueQuirksModeRenderer), startUpScriptKey, startupScript);
}
}
private void PrepareHiddenControl(BocBooleanValueRenderingContext renderingContext, HiddenField hiddenFieldControl, bool isReadOnly)
{
if (!isReadOnly)
{
hiddenFieldControl.Value = renderingContext.Control.Value.HasValue ? renderingContext.Control.Value.ToString() : c_nullString;
}
hiddenFieldControl.Visible = !isReadOnly;
}
private void PrepareLinkControl(BocBooleanValueRenderingContext renderingContext, HyperLink linkControl, bool isClientScriptEnabled)
{
if (!isClientScriptEnabled)
{
return;
}
linkControl.Attributes.Add("onkeydown", "BocBooleanValue_OnKeyDown (this);");
linkControl.Style["padding"] = "0px";
linkControl.Style["border"] = "none";
linkControl.Style["background-color"] = "transparent";
linkControl.Attributes.Add("href", "#");
linkControl.Enabled = renderingContext.Control.Enabled;
}
/// <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, false);
renderingContext.Writer.RenderBeginTag(HtmlTextWriterTag.Span);
Label labelControl = new Label {
ID = renderingContext.Control.ClientID + "_LabelValue"
};
Image imageControl = new Image {
ID = renderingContext.Control.ClientID + "_Image"
};
HiddenField hiddenFieldControl = new HiddenField {
ID = renderingContext.Control.GetValueName()
};
HyperLink linkControl = new HyperLink {
ID = renderingContext.Control.GetDisplayValueName()
};
bool isClientScriptEnabled = DetermineClientScriptLevel(renderingContext);
if (isClientScriptEnabled)
{
if (renderingContext.Control.Enabled)
{
RegisterStarupScriptIfNeeded(renderingContext, resourceSet);
}
string script = GetClickScript(renderingContext, resourceSet, imageControl, labelControl, hiddenFieldControl, renderingContext.Control.Enabled);
labelControl.Attributes.Add("onclick", script);
linkControl.Attributes.Add("onclick", script);
}
PrepareLinkControl(renderingContext, linkControl, isClientScriptEnabled);
PrepareHiddenControl(renderingContext, hiddenFieldControl, renderingContext.Control.IsReadOnly);
PrepareVisibleControls(renderingContext, resourceSet, imageControl, labelControl);
hiddenFieldControl.RenderControl(renderingContext.Writer);
linkControl.Controls.Add(imageControl);
linkControl.RenderControl(renderingContext.Writer);
labelControl.RenderControl(renderingContext.Writer);
renderingContext.Writer.RenderEndTag();
}
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.Style["vertical-align"] = "middle";
imageControl.Style["border-style"] = "none";
imageControl.ImageUrl = imageUrl;
if (renderingContext.Control.ShowDescription)
{
labelControl.Text = description;
}
labelControl.Width = Unit.Empty;
labelControl.Height = Unit.Empty;
labelControl.ApplyStyle(renderingContext.Control.LabelStyle);
}
private bool DetermineClientScriptLevel(BocBooleanValueRenderingContext renderingContext)
{
return(!renderingContext.Control.IsDesignMode && !renderingContext.Control.IsReadOnly);
}
