[अपडेट किया गया संस्करण]
इनलाइन स्क्रिप्ट शामिल करने के लिए @Necrocubus प्रश्न के बाद अपडेट किया गया संस्करण।
public static class ScriptsExtensions
{
const string REQ_SCRIPT = "RequiredScript";
const string REQ_INLINESCRIPT = "RequiredInlineScript";
const string REQ_STYLE = "RequiredStyle";
#region Scripts
/// <summary>
/// Adds a script
/// </summary>
/// <param name="html"></param>
/// <param name="path"></param>
/// <param name="priority">Ordered by decreasing priority </param>
/// <param name="bottom"></param>
/// <param name="options"></param>
/// <returns></returns>
public static string RequireScript(this IHtmlHelper html, string path, int priority = 1, bool bottom=false, params string[] options)
{
var ctxt = html.ViewContext.HttpContext;
var requiredScripts = ctxt.Items[REQ_SCRIPT] as List<ResourceToInclude>;
if (requiredScripts == null) ctxt.Items[REQ_SCRIPT] = requiredScripts = new List<ResourceToInclude>();
if (!requiredScripts.Any(i => i.Path == path)) requiredScripts.Add(new ResourceToInclude() { Path = path, Priority = priority, Options = options, Type=ResourceType.Script, Bottom=bottom});
return null;
}
/// <summary>
///
/// </summary>
/// <param name="html"></param>
/// <param name="script"></param>
/// <param name="priority">Ordered by decreasing priority </param>
/// <param name="bottom"></param>
/// <returns></returns>
public static string RequireInlineScript(this IHtmlHelper html, string script, int priority = 1, bool bottom = false)
{
var ctxt = html.ViewContext.HttpContext;
var requiredScripts = ctxt.Items[REQ_INLINESCRIPT] as List<InlineResource>;
if (requiredScripts == null) ctxt.Items[REQ_INLINESCRIPT] = requiredScripts = new List<InlineResource>();
requiredScripts.Add(new InlineResource() { Content=script, Priority = priority, Bottom=bottom, Type=ResourceType.Script});
return null;
}
/// <summary>
/// Just call @Html.EmitRequiredScripts(false)
/// at the end of your head tag and
/// @Html.EmitRequiredScripts(true) at the end of the body if some scripts are set to be at the bottom.
/// </summary>
public static HtmlString EmitRequiredScripts(this IHtmlHelper html, bool bottom)
{
var ctxt = html.ViewContext.HttpContext;
var requiredScripts = ctxt.Items[REQ_SCRIPT] as List<ResourceToInclude>;
var requiredInlineScripts = ctxt.Items[REQ_INLINESCRIPT] as List<InlineResource>;
var scripts = new List<Resource>();
scripts.AddRange(requiredScripts ?? new List<ResourceToInclude>());
scripts.AddRange(requiredInlineScripts ?? new List<InlineResource>());
if (scripts.Count==0) return null;
StringBuilder sb = new StringBuilder();
foreach (var item in scripts.Where(s=>s.Bottom==bottom).OrderByDescending(i => i.Priority))
{
sb.Append(item.ToString());
}
return new HtmlString(sb.ToString());
}
#endregion Scripts
#region Styles
/// <summary>
///
/// </summary>
/// <param name="html"></param>
/// <param name="path"></param>
/// <param name="priority">Ordered by decreasing priority </param>
/// <param name="options"></param>
/// <returns></returns>
public static string RequireStyle(this IHtmlHelper html, string path, int priority = 1, params string[] options)
{
var ctxt = html.ViewContext.HttpContext;
var requiredScripts = ctxt.Items[REQ_STYLE] as List<ResourceToInclude>;
if (requiredScripts == null) ctxt.Items[REQ_STYLE] = requiredScripts = new List<ResourceToInclude>();
if (!requiredScripts.Any(i => i.Path == path)) requiredScripts.Add(new ResourceToInclude() { Path = path, Priority = priority, Options = options });
return null;
}
/// <summary>
/// Just call @Html.EmitRequiredStyles()
/// at the end of your head tag
/// </summary>
public static HtmlString EmitRequiredStyles(this IHtmlHelper html)
{
var ctxt = html.ViewContext.HttpContext;
var requiredScripts = ctxt.Items[REQ_STYLE] as List<ResourceToInclude>;
if (requiredScripts == null) return null;
StringBuilder sb = new StringBuilder();
foreach (var item in requiredScripts.OrderByDescending(i => i.Priority))
{
sb.Append(item.ToString());
}
return new HtmlString(sb.ToString());
}
#endregion Styles
#region Models
public class InlineResource : Resource
{
public string Content { get; set; }
public override string ToString()
{
return "<script>"+Content+"</script>";
}
}
public class ResourceToInclude : Resource
{
public string Path { get; set; }
public string[] Options { get; set; }
public override string ToString()
{
switch(Type)
{
case ResourceType.CSS:
if (Options == null || Options.Length == 0)
return String.Format("<link rel=\"stylesheet\" href=\"{0}\" type=\"text/css\" />\n", Path);
else
return String.Format("<link rel=\"stylesheet\" href=\"{0}\" type=\"text/css\" {1} />\n", Path, String.Join(" ", Options));
default:
case ResourceType.Script:
if (Options == null || Options.Length == 0)
return String.Format("<script src=\"{0}\" type=\"text/javascript\"></script>\n", Path);
else
return String.Format("<script src=\"{0}\" type=\"text/javascript\" {1}></script>\n", Path, String.Join(" ", Options));
}
}
}
public class Resource
{
public ResourceType Type { get; set; }
public int Priority { get; set; }
public bool Bottom { get; set; }
}
public enum ResourceType
{
Script,
CSS
}
#endregion Models
}
मेरा 2 सेंट, यह एक पुरानी पोस्ट है, लेकिन अभी भी प्रासंगिक है, इसलिए यहां श्री बेल के समाधान का एक उन्नत अद्यतन है जो एएसपी .नेट कोर के साथ काम करता है।
यह आयातित आंशिक दृश्यों और साक्षात्कारों से मुख्य लेआउट में स्क्रिप्ट और शैलियों को जोड़ने की अनुमति देता है, और स्क्रिप्ट / शैली आयात (जैसे async defer आदि) के विकल्प जोड़ने की संभावना है:
public static class ScriptsExtensions
{
const string REQ_SCRIPT = "RequiredScript";
const string REQ_STYLE = "RequiredStyle";
public static string RequireScript(this IHtmlHelper html, string path, int priority = 1, params string[] options)
{
var ctxt = html.ViewContext.HttpContext;
var requiredScripts = ctxt.Items[REQ_SCRIPT] as List<ResourceInclude>;
if (requiredScripts == null) ctxt.Items[REQ_SCRIPT] = requiredScripts = new List<ResourceInclude>();
if (!requiredScripts.Any(i => i.Path == path)) requiredScripts.Add(new ResourceInclude() { Path = path, Priority = priority, Options = options });
return null;
}
public static HtmlString EmitRequiredScripts(this IHtmlHelper html)
{
var ctxt = html.ViewContext.HttpContext;
var requiredScripts = ctxt.Items[REQ_SCRIPT] as List<ResourceInclude>;
if (requiredScripts == null) return null;
StringBuilder sb = new StringBuilder();
foreach (var item in requiredScripts.OrderByDescending(i => i.Priority))
{
if (item.Options == null || item.Options.Length == 0)
sb.AppendFormat("<script src=\"{0}\" type=\"text/javascript\"></script>\n", item.Path);
else
sb.AppendFormat("<script src=\"{0}\" type=\"text/javascript\" {1}></script>\n", item.Path, String.Join(" ", item.Options));
}
return new HtmlString(sb.ToString());
}
public static string RequireStyle(this IHtmlHelper html, string path, int priority = 1, params string[] options)
{
var ctxt = html.ViewContext.HttpContext;
var requiredScripts = ctxt.Items[REQ_STYLE] as List<ResourceInclude>;
if (requiredScripts == null) ctxt.Items[REQ_STYLE] = requiredScripts = new List<ResourceInclude>();
if (!requiredScripts.Any(i => i.Path == path)) requiredScripts.Add(new ResourceInclude() { Path = path, Priority = priority, Options = options });
return null;
}
public static HtmlString EmitRequiredStyles(this IHtmlHelper html)
{
var ctxt = html.ViewContext.HttpContext;
var requiredScripts = ctxt.Items[REQ_STYLE] as List<ResourceInclude>;
if (requiredScripts == null) return null;
StringBuilder sb = new StringBuilder();
foreach (var item in requiredScripts.OrderByDescending(i => i.Priority))
{
if (item.Options == null || item.Options.Length == 0)
sb.AppendFormat("<link rel=\"stylesheet\" href=\"{0}\" type=\"text/css\" />\n", item.Path);
else
sb.AppendFormat("<link rel=\"stylesheet\" href=\"{0}\" type=\"text/css\" {1} />\n", item.Path, String.Join(" ", item.Options));
}
return new HtmlString(sb.ToString());
}
public class ResourceInclude
{
public string Path { get; set; }
public int Priority { get; set; }
public string[] Options { get; set; }
}
}