/// <summary>
/// Renders HTML for an image
/// </summary>
/// <param name="image">The image to render</param>
/// <param name="attributes">Additional attributes to add. Do not include alt or src</param>
/// <returns>An img HTML element</returns>
public virtual string RenderImage(Fields.Image image, NameValueCollection attributes)
{
if (image == null)
{
return("");
}
if (attributes == null)
{
attributes = new NameValueCollection();
}
string format = "<img src='{0}' {1}/>";
//should there be some warning about these removals?
AttributeCheck(attributes, "class", image.Class);
AttributeCheck(attributes, "alt", image.Alt);
if (image.Height > 0)
{
AttributeCheck(attributes, "height", image.Height.ToString());
}
if (image.Width > 0)
{
AttributeCheck(attributes, "width", image.Width.ToString());
}
return(format.Formatted(image.Src, Utilities.ConvertAttributes(attributes)));
}
public virtual string RenderImage(Fields.Image image, NameValueCollection attributes)
{
/*
* ME - This method is used to render images rather than going back to the fieldrender
* because it stops another call having to be passed to Sitecore.
*/
if (image == null || image.Src.IsNullOrWhiteSpace())
{
return("");
}
if (attributes == null)
{
attributes = new NameValueCollection();
}
var builder = new UrlBuilder(image.Src);
//append to url values
if (attributes[ImageWidth].IsNotNullOrEmpty())
{
attributes.Add(ImageParameters.WIDTH, attributes[ImageWidth]);
}
else
{
attributes.Add(ImageParameters.WIDTH, image.Width.ToString());
}
if (attributes[ImageHeight].IsNotNullOrEmpty())
{
attributes.Add(ImageParameters.HEIGHT, attributes[ImageHeight]);
}
else
{
attributes.Add(ImageParameters.HEIGHT, image.Height.ToString());
}
foreach (var key in attributes.AllKeys)
{
if (key == "alt" || key == "class" || key == "style")
{
continue;
}
builder[key] = attributes[key];
}
//should there be some warning about these removals?
AttributeCheck(attributes, "class", image.Class);
AttributeCheck(attributes, "alt", image.Alt);
return(ImageTagFormat.Formatted(builder.ToString(), Utilities.ConvertAttributes(attributes)));
}
public virtual string RenderImage(Fields.Image image, NameValueCollection attributes)
{
var urlParams = new NameValueCollection();
var htmlParams = new NameValueCollection();
/*
* ME - This method is used to render images rather than going back to the fieldrender
* because it stops another call having to be passed to Sitecore.
*/
if (image == null || image.Src.IsNullOrWhiteSpace())
{
return("");
}
if (attributes == null)
{
attributes = new NameValueCollection();
}
Action <string> remove = key => attributes.Remove(key);
Action <string> url = key =>
{
urlParams.Add(key, attributes[key]);
remove(key);
};
Action <string> html = key =>
{
htmlParams.Add(key, attributes[key]);
remove(key);
};
Action <string> both = key =>
{
htmlParams.Add(key, attributes[key]);
urlParams.Add(key, attributes[key]);
remove(key);
};
foreach (var key in attributes.AllKeys)
{
switch (key)
{
case ImageParameters.BORDER:
case ImageParameters.ALT:
case ImageParameters.HSPACE:
case ImageParameters.VSPACE:
case ImageParameters.CLASS:
html(key);
break;
case ImageParameters.OUTPUT_METHOD:
case ImageParameters.ALLOW_STRETCH:
case ImageParameters.IGNORE_ASPECT_RATIO:
case ImageParameters.SCALE:
case ImageParameters.MAX_WIDTH:
case ImageParameters.MAX_HEIGHT:
case ImageParameters.THUMBNAIL:
case ImageParameters.BACKGROUND_COLOR:
case ImageParameters.DATABASE:
case ImageParameters.LANGUAGE:
case ImageParameters.VERSION:
case ImageParameters.DISABLE_MEDIA_CACHE:
url(key);
break;
case ImageParameters.WIDTH:
case ImageParameters.HEIGHT:
both(key);
break;
default:
both(key);
break;
}
}
var builder = new UrlBuilder(image.Src);
foreach (var key in urlParams.AllKeys)
{
builder[key] = urlParams[key];
}
//should there be some warning about these removals?
AttributeCheck(htmlParams, ImageParameters.CLASS, image.Class);
AttributeCheck(htmlParams, ImageParameters.ALT, image.Alt);
AttributeCheck(htmlParams, ImageParameters.BORDER, image.Border);
if (image.HSpace > 0)
{
AttributeCheck(htmlParams, ImageParameters.HSPACE, image.HSpace.ToString(CultureInfo.InvariantCulture));
}
if (image.VSpace > 0)
{
AttributeCheck(htmlParams, ImageParameters.VSPACE, image.VSpace.ToString(CultureInfo.InvariantCulture));
}
if (htmlParams.AllKeys.Any(x => x == ImageParameters.HEIGHT))
{
htmlParams["height"] = htmlParams[ImageParameters.HEIGHT];
htmlParams.Remove(ImageParameters.HEIGHT);
}
if (htmlParams.AllKeys.Any(x => x == ImageParameters.WIDTH))
{
htmlParams["width"] = htmlParams[ImageParameters.WIDTH];
htmlParams.Remove(ImageParameters.WIDTH);
}
return(ImageTagFormat.Formatted(builder.ToString(), Utilities.ConvertAttributes(htmlParams)));
}
public virtual string RenderImage(Fields.Image image)
{
return(RenderImage(image, null));
}