/// <summary>
/// 验证是否支持当前文件扩展名
/// </summary>
/// <param name="fileName">文件名（带后缀）</param>
/// <returns>true-支持,false-不支持</returns>
public bool ValidateFileExtensions(string fileName)
{
string fileExtension = fileName.Substring(fileName.LastIndexOf(".") + 1);
string[] extensions = AllowedFileExtensions.Split(',');
return(extensions.Where(n => n.Equals(fileExtension, StringComparison.InvariantCultureIgnoreCase)).Count() > 0);
}
/// <summary> Add the file input and the necessary script section, with
/// all the options specfiedi here, directly to the streamwriter </summary>
/// <param name="Output"> Writer to write to the stream </param>
/// <param name="Extra_Indent"> Extra indent to begin each line with (purely for formatting) </param>
/// <param name="Invalid_Message"> Message to display on fallback, particularly when HTML5 and flash both fail </param>
public void Add_To_Stream(TextWriter Output, string Extra_Indent, String Invalid_Message)
{
if (Version == UploadiFive_Version_Enum.HTML5)
{
Output.WriteLine(Extra_Indent + " $('#" + FileInputID + "').uploadifive({");
}
else
{
Output.WriteLine(Extra_Indent + " $('#" + FileInputID + "').uploadify({");
}
// Add all the uploadifive options
if (Auto.HasValue)
{
Output.WriteLine(Extra_Indent + " 'auto': " + Auto.Value.ToString().ToLower() + ",");
}
if (!string.IsNullOrEmpty(ButtonClass))
{
Output.WriteLine(Extra_Indent + " 'buttonClass': '" + ButtonClass + "',");
}
if (!string.IsNullOrEmpty(ButtonText))
{
Output.WriteLine(Extra_Indent + " 'buttonText': '" + ButtonText + "',");
}
if (!string.IsNullOrEmpty(CheckScript))
{
Output.WriteLine(Extra_Indent + " 'checkScript': '" + CheckScript + "',");
}
if (DragAndDrop.HasValue)
{
Output.WriteLine(Extra_Indent + " 'dnd': " + DragAndDrop.Value.ToString().ToLower() + ",");
}
if (!string.IsNullOrEmpty(FileObjName))
{
Output.WriteLine(Extra_Indent + " 'fileObjName': '" + FileObjName + "',");
}
if (!string.IsNullOrEmpty(FileSizeLimit))
{
Output.WriteLine(Extra_Indent + " 'fileSizeLimit': '" + FileSizeLimit + "',");
}
if (!string.IsNullOrEmpty(FileType))
{
Output.WriteLine(Extra_Indent + " 'fileType': '" + FileType + "',");
}
// Add the form data
if (FormData.Count > 0)
{
Output.Write(Extra_Indent + " 'formData': { ");
bool first = true;
foreach (KeyValuePair <string, string> thisData in FormData)
{
// After the first one, start with the comma seperation
if (first)
{
first = false;
}
else
{
Output.Write(", ");
}
Output.Write("'" + thisData.Key + "' : '" + thisData.Value + "'");
}
Output.WriteLine(" },");
}
// Finish the uploadifive options
if (ButtonHeight.HasValue)
{
Output.WriteLine(Extra_Indent + " 'height': " + ButtonHeight.Value + ",");
}
if (!string.IsNullOrEmpty(ItemTemplate))
{
Output.WriteLine(Extra_Indent + " 'itemTemplate': '" + ItemTemplate + "',");
}
if (Method == UploadiFive_Method_Enum.Get)
{
Output.WriteLine(Extra_Indent + " 'method': 'get',");
}
if (Multi.HasValue)
{
Output.WriteLine(Extra_Indent + " 'multi': " + Multi.Value.ToString().ToLower() + ",");
}
if (!string.IsNullOrEmpty(QueueID))
{
Output.WriteLine(Extra_Indent + " 'queueID': '" + QueueID + "',");
}
if (QueueSizeLimit.HasValue)
{
Output.WriteLine(Extra_Indent + " 'queueSizeLimit': " + QueueSizeLimit.Value + ",");
}
if (RemoveCompleted.HasValue)
{
Output.WriteLine(Extra_Indent + " 'removeCompleted': " + RemoveCompleted.Value.ToString().ToLower() + ",");
}
if (TruncateLength.HasValue)
{
Output.WriteLine(Extra_Indent + " 'truncateLength': " + TruncateLength.Value + ",");
}
if (UploadLimit.HasValue)
{
Output.WriteLine(Extra_Indent + " 'uploadLimit': " + UploadLimit.Value + ",");
}
if (ButtonWidth.HasValue)
{
Output.WriteLine(Extra_Indent + " 'width': " + ButtonWidth.Value + ",");
}
// Add some event handlers
if (SubmitWhenQueueCompletes)
{
Output.WriteLine(Extra_Indent + " 'onQueueComplete': function (uploads) { $('#" + FileInputID + "').closest(\"form\").submit(); },");
}
// Is there a file extension restriction here?
if (!string.IsNullOrEmpty(AllowedFileExtensions))
{
// Build the json array of possible file extensions
string[] split = AllowedFileExtensions.Split(",|".ToCharArray());
StringBuilder jsonArrayBuilder = new StringBuilder(AllowedFileExtensions.Length * 2);
bool first = true;
foreach (string thisSplit in split)
{
if (first)
{
jsonArrayBuilder.Append("\"" + thisSplit.Trim().ToLower() + "\"");
first = false;
}
else
{
jsonArrayBuilder.Append(", \"" + thisSplit.Trim().ToLower() + "\"");
}
}
// Now, add the event
if (Version == UploadiFive_Version_Enum.HTML5)
{
Output.WriteLine(Extra_Indent + " 'onAddQueueItem' : function(file) {");
}
else
{
Output.WriteLine(Extra_Indent + " 'onSelect' : function(file) {");
}
Output.WriteLine(Extra_Indent + " var extArray = JSON.parse('[ " + jsonArrayBuilder + " ]');");
Output.WriteLine(Extra_Indent + " var fileName = file.name;");
Output.WriteLine(Extra_Indent + " var ext = fileName.substring(fileName.lastIndexOf('.')).toLowerCase();");
Output.WriteLine(Extra_Indent + " var isExtValid = false;");
Output.WriteLine(Extra_Indent + " for(var i = 0; i < extArray.length; i++) { ");
Output.WriteLine(Extra_Indent + " if ( ext == extArray[i] ) { isExtValid = true; break; }");
Output.WriteLine(Extra_Indent + " }");
if (Version == UploadiFive_Version_Enum.HTML5)
{
if (DisallowedFileExtenstionMessage.Length > 0)
{
Output.WriteLine(Extra_Indent + " if ( !isExtValid ) { alert(\"" + DisallowedFileExtenstionMessage + "\".replace('<extension>', ext)); $('#" + FileInputID + "').uploadifive('cancel', file); }");
}
else
{
Output.WriteLine(Extra_Indent + " if ( !isExtValid ) { $('#" + FileInputID + "').uploadifive('cancel', file); }");
}
}
else
{
if (DisallowedFileExtenstionMessage.Length > 0)
{
Output.WriteLine(Extra_Indent + " if ( !isExtValid ) { alert(\"" + DisallowedFileExtenstionMessage + "\".replace('<extension>', ext)); $('#" + FileInputID + "').uploadify('cancel', '*'); }");
}
else
{
Output.WriteLine(Extra_Indent + " if ( !isExtValid ) { $('#" + FileInputID + "').uploadify('cancel', '*'); }");
}
}
Output.WriteLine(Extra_Indent + " },");
}
// Set the upload script and finish this
if (Version == UploadiFive_Version_Enum.HTML5)
{
Output.Write(Extra_Indent + " 'uploadScript': '" + UploadScript + "'");
}
else
{
if (String.IsNullOrEmpty(Swf))
{
Output.WriteLine(Extra_Indent + " 'swf': 'uploadify/uploadify.swf',");
}
else
{
Output.WriteLine(Extra_Indent + " 'swf': '" + Swf + "',");
}
Output.Write(Extra_Indent + " 'uploader': '" + UploadScript + "'");
}
if ((Version == UploadiFive_Version_Enum.HTML5) && (RevertToFlashVersion))
{
// ENd the last line, with a paranthesis
Output.WriteLine(",");
Output.WriteLine(Extra_Indent + " 'onFallback': function() {");
Output.WriteLine(Extra_Indent + " // Revert to flash version if no HTML5");
// Switch to SWF version
Version = UploadiFive_Version_Enum.Flash;
string buttonCss = ButtonClass;
if (!String.IsNullOrEmpty(RevertedButtonClass))
{
ButtonClass = RevertedButtonClass;
}
try
{
Add_To_Stream(Output, Extra_Indent + " ", NoHtml5OrFlashMessage);
Output.WriteLine("} //end");
}
catch
{
// Just want to ensure the setting is returned
}
finally
{
Version = UploadiFive_Version_Enum.HTML5;
ButtonClass = buttonCss;
}
}
else
{
if (!String.IsNullOrEmpty(NoHtml5OrFlashMessage))
{
// ENd the last line, with a paranthesis
Output.WriteLine(",");
Output.WriteLine(Extra_Indent + " 'onFallback': function() { alert('" + NoHtml5OrFlashMessage.Replace("'", "") + "'); }");
}
else
{
// End the last line
Output.WriteLine();
}
}
Output.WriteLine(Extra_Indent + " });");
Output.WriteLine();
}