/// <summary>
/// Initializes a new instance of the RenderButtonEdit class
/// </summary>
/// <param name="url">URL to the edit action</param>
public RenderButtonEdit(DataUrl url)
{
Url = url;
ClassName = QNetButtonClassDefaults.Default;
}
/// <summary>
/// Initializes a new instance of the RenderButton class
/// </summary>
/// <param name="url">URL</param>
public RenderLink(DataUrl url)
{
Url = url;
}
/// <summary>
/// Erstellt einen neuen <see cref="DataUrl"/>. Löst keine Ausnahme aus, wenn der <see cref="DataUrl"/> nicht erstellt werden kann.
/// </summary>
/// <param name="value">Ein <see cref="string"/>, der dem Data-URL-Schema nach RFC 2397 entspricht.</param>
/// <param name="dataUrl">Enthält nach dem Beenden der Methode einen aus <paramref name="value"/> erstellten <see cref="DataUrl"/>.
/// Dieser Parameter wird nicht-initialisiert übergeben.</param>
/// <returns>Ein <see cref="bool"/>-Wert, der <c>true</c> ist, wenn der <see cref="DataUrl"/> erfolgreich erstellt wurde, andernfalls <c>false</c>.</returns>
public static bool TryCreate(string?value, [NotNullWhen(true)] out DataUrl?dataUrl)
{
dataUrl = null;
if (value is null || !value.StartsWith("data:", StringComparison.OrdinalIgnoreCase))
{
return(false);
}
const int DATA_PROTOCOL_LENGTH = 5; // 5 == LengthOf "data:"
const int BASE64_LENGTH = 7; // 7 = LengthOf ";base64"
int endIndex = -1;
DataEncoding enc = DataEncoding.UrlEncoded;
for (int i = DATA_PROTOCOL_LENGTH; i < value.Length; i++)
{
char c = value[i];
if (char.IsWhiteSpace(c))
{
return(false);
}
if (c == ',')
{
endIndex = i;
break;
}
}
if (endIndex == -1)
{
return(false);
}
// dies ändert ggf. auch endIndex
if (HasBase64Encoding(value))
{
enc = DataEncoding.Base64;
}
var mime = new MimeType(value.Substring(DATA_PROTOCOL_LENGTH, endIndex - DATA_PROTOCOL_LENGTH));
try
{
dataUrl = new DataUrl(value, mime, enc);
}
catch
{
return(false);
}
return(true);
bool HasBase64Encoding(string val)
{
//Suche ";base64"
int start = endIndex - 1;
int end = endIndex - BASE64_LENGTH;
if (end > DATA_PROTOCOL_LENGTH)
{
int index = BASE64_LENGTH - 1;
for (int i = start; i >= end; i--, index--)
{
char c = char.ToLowerInvariant(val[i]);
if (c != ";base64"[index])
{
return(false);
}
}
endIndex = end;
return(true);
}
return(false);
}
}
/// <summary>
/// Initializes a new instance of the RenderButtonEdit class
/// </summary>
/// <param name="url">URL to the edit action</param>
public RenderButtonView(DataUrl url)
{
Url = url;
ClassName = NopButtonClassDefaults.Default;
}
public override void Process(TagHelperContext context, TagHelperOutput output)
{
(_htmlHelper as IViewContextAware).Contextualize(ViewContext);
var prefix = ViewContext.ViewData.TemplateInfo.HtmlFieldPrefix;
var htmlId = prefix.IsEmpty()
? ModelItem.Metadata.PropertyName
: _htmlHelper.IdForModel() != ModelItem.Metadata.PropertyName
? _htmlHelper.IdForModel() + "_" + ModelItem.Metadata.PropertyName
: ModelItem.Metadata.PropertyName;
var htmlName = prefix.IsEmpty() ? ModelItem.Metadata.PropertyName : prefix + "." + ModelItem.Metadata.PropertyName;
var labelText = ModelItem.Metadata.DisplayName ?? ModelItem.Metadata.PropertyName ?? htmlId.Split('.').Last();
if (ItemList == null && ItemList2 == null)
{
var comboDataInfo = GetComboBoxDataSource(ModelItem.ModelExplorer);
ItemList = comboDataInfo.ListItems;
if (comboDataInfo.CanSelect)
{
if (OptionLabel.IsEmpty())
{
OptionLabel = UI.Select;
}
}
else
{
OptionLabel = null;
}
}
var sbOptions = new StringBuilder();
if (!OptionLabel.IsEmpty())
{
sbOptions.AppendLine(string.Concat("<option value=\"\">", OptionLabel, "</option>"));
}
if (ItemList != null)
{
foreach (var item in ItemList)
{
var option = new TagBuilder("option");
option.Attributes.Add("value", item.Value);
if (item.Selected)
{
option.Attributes.Add("selected", "selected");
}
option.InnerHtml.AppendHtml(item.Text);
sbOptions.AppendLine(option.GetString());
}
}
else if (ItemList2 != null)
{
foreach (var item in ItemList2)
{
var option = new TagBuilder("option");
option.Attributes.Add("value", item.Value);
if (item.Selected)
{
option.Attributes.Add("selected", "selected");
}
option.InnerHtml.AppendHtml(item.Text);
sbOptions.AppendLine(option.GetString());
}
}
if (DisableEditorTemplate)
{
output.TagName = "div";
output.TagMode = TagMode.StartTagAndEndTag;
output.Attributes.Add("id", "div" + htmlId);
if (!DisableColSize)
{
output.Attributes.Add("class", $"col-sm-{EditorColCount}");
}
var select = new TagBuilder("select");
if (ReadOnly)
{
select.Attributes.Add("disabled", "disabled");
}
if (!DataUrl.IsEmpty())
{
select.Attributes.Add("onChange", $"LoadDropdown('{DataUrl}','{htmlId}', '{(SubComboId.IsEmpty() ? "" : SubComboId)}', '{(OptionLabel.IsEmpty() ? "" : OptionLabel)}');");
}
select.Attributes.Add("name", htmlName);
select.AddCssClass("form-control form-control-sm");
if (!CssClass.IsEmpty())
{
select.AddCssClass(CssClass);
}
select.Attributes.Add("id", htmlId);
if (ModelItem.Metadata.IsRequired)
{
var requiredAttr = Digger2.GetMetaAttr <RequiredAttribute>(ModelItem.Metadata);
var errMsg = "";
if (requiredAttr != null)
{
errMsg = requiredAttr.ErrorMessage;
if (errMsg.IsEmpty() && requiredAttr.ErrorMessageResourceType != null)
{
var rm = new ResourceManager(requiredAttr.ErrorMessageResourceType);
var rsm = rm.GetString(requiredAttr.ErrorMessageResourceName);
if (rsm != null && !rsm.IsEmpty())
{
errMsg = string.Format(rsm, labelText);
}
}
}
select.Attributes.Add("data-val", "true");
select.Attributes.Add("data-val-required",
requiredAttr != null
? errMsg
: "Gereklidir"
);
}
select.InnerHtml.AppendHtml(sbOptions.ToString());
output.Content.SetHtmlContent(select.GetString());
}
else
{
output.TagName = "div";
output.TagMode = TagMode.StartTagAndEndTag;
output.Attributes.Add("class", "form-group row");
output.Attributes.Add("id", "div" + htmlId);
var select = new TagBuilder("select");
if (ReadOnly)
{
select.Attributes.Add("disabled", "disabled");
}
if (!DataUrl.IsEmpty())
{
select.Attributes.Add("onChange", $"LoadDropdown('{DataUrl}','{htmlId}', '{(SubComboId.IsEmpty() ? "" : SubComboId)}', '{(OptionLabel.IsEmpty() ? "" : OptionLabel)}');");
}
select.AddCssClass("form-control form-control-sm");
if (!CssClass.IsEmpty())
{
select.AddCssClass(CssClass);
}
select.Attributes.Add("name", htmlName);
select.Attributes.Add("id", htmlId);
var irq = (!IsRequired.HasValue && ModelItem.Metadata.GetIsRequired()) || (IsRequired.HasValue && IsRequired.Value);
var requiredHtml = irq
? $"<span class=\"{RequiredCssClass}\">{Symbol}</span>"
: "";
var metaHtml = irq
? $"<span class=\"field-validation-valid help-block\" data-valmsg-for=\"{htmlId}\" data-valmsg-replace=\"true\"></span>"
: "";
if (irq)
{
var requiredAttr = Digger2.GetMetaAttr <RequiredAttribute>(ModelItem.Metadata);
var errMsg = "";
if (requiredAttr != null)
{
errMsg = requiredAttr.ErrorMessage;
if (errMsg.IsEmpty() && requiredAttr.ErrorMessageResourceType != null)
{
var rm = new ResourceManager(requiredAttr.ErrorMessageResourceType);
var rsm = rm.GetString(requiredAttr.ErrorMessageResourceName);
if (rsm != null && !rsm.IsEmpty())
{
errMsg = string.Format(rsm, labelText);
}
}
}
select.Attributes.Add("data-val", "true");
select.Attributes.Add("data-val-required",
requiredAttr != null
? errMsg
: "Gereklidir"
);
}
select.InnerHtml.AppendHtml(sbOptions.ToString());
var addHtml = "";
if (!AddNewUrl.IsEmpty())
{
addHtml = $@"<div class='col-1'>
<a href='{AddNewUrl}' class='btn btn-sm btn-primary fancyboxAdd fancybox.iframe'><i class='fas fa-plus'></i></a>
</div>";
EditorColCount--;
}
var editorTemplate = $@"
<label class=""col-{LabelColCount} col-form-label col-form-label-sm"">{labelText} {requiredHtml}</label>
<div class=""col-{EditorColCount}"">
{select.GetString()}
{metaHtml}
</div>
{addHtml}";
output.Content.SetHtmlContent(editorTemplate);
}
}