/// <inheritdoc />
public override async Task ProcessAsync(TagHelperContext context, TagHelperOutput output)
{
// Pass through attribute that is also a well-known HTML attribute.
if (Src != null)
{
output.CopyHtmlAttribute(SrcAttributeName, context);
}
var modeResult = AttributeMatcher.DetermineMode(context, ModeDetails);
var logger = Logger ?? LoggerFactory.CreateLogger <ScriptTagHelper>();
modeResult.LogDetails(logger, this, context.UniqueId, ViewContext.View.Path);
if (!modeResult.FullMatches.Any())
{
// No attributes matched so we have nothing to do
return;
}
// Get the highest matched mode
var mode = modeResult.FullMatches.Select(match => match.Mode).Max();
// NOTE: Values in TagHelperOutput.Attributes may already be HTML-encoded.
var attributes = new Dictionary <string, object>(output.Attributes);
var builder = new DefaultTagHelperContent();
var originalContent = await context.GetChildContentAsync();
if (mode == Mode.Fallback && string.IsNullOrEmpty(SrcInclude) || mode == Mode.FileVersion)
{
// No globbing to do, just build a <script /> tag to match the original one in the source file
// Or just add file version to the script tag.
BuildScriptTag(originalContent, attributes, builder);
}
else
{
BuildGlobbedScriptTags(originalContent, attributes, builder);
}
if (mode == Mode.Fallback)
{
BuildFallbackBlock(attributes, builder);
}
// We've taken over tag rendering, so prevent rendering the outer tag
output.TagName = null;
output.Content.SetContent(builder);
}
/// <inheritdoc />
public override void Process(TagHelperContext context, TagHelperOutput output)
{
// Pass through attribute that is also a well-known HTML attribute.
if (Href != null)
{
output.CopyHtmlAttribute(HrefAttributeName, context);
}
var modeResult = AttributeMatcher.DetermineMode(context, ModeDetails);
modeResult.LogDetails(Logger, this, context.UniqueId, ViewContext.View.Path);
if (!modeResult.FullMatches.Any())
{
// No attributes matched so we have nothing to do
return;
}
// Get the highest matched mode
var mode = modeResult.FullMatches.Select(match => match.Mode).Max();
// NOTE: Values in TagHelperOutput.Attributes may already be HTML-encoded.
var attributes = new TagHelperAttributeList(output.Attributes);
var builder = new DefaultTagHelperContent();
if (mode == Mode.Fallback && string.IsNullOrEmpty(HrefInclude) || mode == Mode.FileVersion)
{
// No globbing to do, just build a <link /> tag to match the original one in the source file.
// Or just add file version to the link tag.
BuildLinkTag(attributes, builder);
}
else
{
BuildGlobbedLinkTags(attributes, builder);
}
if (mode == Mode.Fallback)
{
BuildFallbackBlock(builder);
}
// We've taken over tag rendering, so prevent rendering the outer tag
output.TagName = null;
output.Content.SetContent(builder);
}
/// <inheritdoc />
public override void Process(TagHelperContext context, TagHelperOutput output)
{
string resolvedUrl;
// Pass through attribute that is also a well-known HTML attribute.
if (Src != null)
{
output.CopyHtmlAttribute(SrcAttributeName, context);
if (TryResolveUrl(Src, encodeWebRoot: false, resolvedUrl: out resolvedUrl))
{
Src = resolvedUrl;
}
ProcessUrlAttribute(SrcAttributeName, output);
}
var modeResult = AttributeMatcher.DetermineMode(context, ModeDetails);
modeResult.LogDetails(Logger, this, context.UniqueId, ViewContext.View.Path);
if (!modeResult.FullMatches.Any())
{
// No attributes matched so we have nothing to do
return;
}
// NOTE: Values in TagHelperOutput.Attributes may already be HTML-encoded.
var attributes = new TagHelperAttributeList(output.Attributes);
if (AppendVersion == true)
{
EnsureFileVersionProvider();
var attributeStringValue = output.Attributes[SrcAttributeName]?.Value as string;
if (attributeStringValue != null)
{
output.Attributes[SrcAttributeName].Value =
_fileVersionProvider.AddFileVersionToPath(attributeStringValue);
}
}
var builder = new DefaultTagHelperContent();
// Get the highest matched mode
var mode = modeResult.FullMatches.Select(match => match.Mode).Max();
if (mode == Mode.GlobbedSrc || mode == Mode.Fallback && !string.IsNullOrEmpty(SrcInclude))
{
BuildGlobbedScriptTags(attributes, builder);
if (string.IsNullOrEmpty(Src))
{
// Only SrcInclude is specified. Don't render the original tag.
output.TagName = null;
output.Content.SetContent(string.Empty);
}
}
if (mode == Mode.Fallback)
{
if (TryResolveUrl(FallbackSrc, encodeWebRoot: false, resolvedUrl: out resolvedUrl))
{
FallbackSrc = resolvedUrl;
}
BuildFallbackBlock(attributes, builder);
}
output.PostElement.SetContent(builder);
}
/// <inheritdoc />
public override void Process(TagHelperContext context, TagHelperOutput output)
{
string resolvedUrl;
// Pass through attribute that is also a well-known HTML attribute.
if (Href != null)
{
output.CopyHtmlAttribute(HrefAttributeName, context);
}
// If there's no "href" attribute in output.Attributes this will noop.
ProcessUrlAttribute(HrefAttributeName, output);
// Retrieve the TagHelperOutput variation of the "href" attribute in case other TagHelpers in the
// pipeline have touched the value. If the value is already encoded this LinkTagHelper may
// not function properly.
Href = output.Attributes[HrefAttributeName]?.Value as string;
var modeResult = AttributeMatcher.DetermineMode(context, ModeDetails);
modeResult.LogDetails(Logger, this, context.UniqueId, ViewContext.View.Path);
if (!modeResult.FullMatches.Any())
{
// No attributes matched so we have nothing to do
return;
}
// NOTE: Values in TagHelperOutput.Attributes may already be HTML-encoded.
var attributes = new TagHelperAttributeList(output.Attributes);
if (AppendVersion == true)
{
EnsureFileVersionProvider();
if (Href != null)
{
output.Attributes[HrefAttributeName].Value = _fileVersionProvider.AddFileVersionToPath(Href);
}
}
var builder = new DefaultTagHelperContent();
// Get the highest matched mode
var mode = modeResult.FullMatches.Select(match => match.Mode).Max();
if (mode == Mode.GlobbedHref || mode == Mode.Fallback && !string.IsNullOrEmpty(HrefInclude))
{
BuildGlobbedLinkTags(attributes, builder);
if (string.IsNullOrEmpty(Href))
{
// Only HrefInclude is specified. Don't render the original tag.
output.TagName = null;
output.Content.SetContent(HtmlString.Empty);
}
}
if (mode == Mode.Fallback)
{
if (TryResolveUrl(FallbackHref, encodeWebRoot: false, resolvedUrl: out resolvedUrl))
{
FallbackHref = resolvedUrl;
}
BuildFallbackBlock(builder);
}
output.PostElement.SetContent(builder);
}