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Diffstat (limited to 'forum/templates/content/js/jquery.ajaxfileupload.js')
-rw-r--r-- | forum/templates/content/js/jquery.ajaxfileupload.js | 195 |
1 files changed, 195 insertions, 0 deletions
diff --git a/forum/templates/content/js/jquery.ajaxfileupload.js b/forum/templates/content/js/jquery.ajaxfileupload.js new file mode 100644 index 00000000..75292776 --- /dev/null +++ b/forum/templates/content/js/jquery.ajaxfileupload.js @@ -0,0 +1,195 @@ +jQuery.extend({ + createUploadIframe: function(id, uri){ + //create frame + var frameId = 'jUploadFrame' + id; + if(window.ActiveXObject) { + var io = document.createElement('<iframe id="' + frameId + '" name="' + frameId + '" />'); + if(typeof uri== 'boolean'){ + io.src = 'javascript:false'; + } + else if(typeof uri== 'string'){ + io.src = uri; + } + } + else { + var io = document.createElement('iframe'); + io.id = frameId; + io.name = frameId; + } + io.style.position = 'absolute'; + io.style.top = '-1000px'; + io.style.left = '-1000px'; + + document.body.appendChild(io); + return io; + }, + createUploadForm: function(id, fileElementId) + { + //create form + var formId = 'jUploadForm' + id; + var fileId = 'jUploadFile' + id; + var form = $('<form action="" method="POST" name="' + formId + '" id="' + formId + + '" enctype="multipart/form-data"></form>'); + var oldElement = $('#' + fileElementId); + var newElement = $(oldElement).clone(); + $(oldElement).attr('id', fileId); + $(oldElement).before(newElement); + $(oldElement).appendTo(form); + //set attributes + $(form).css('position', 'absolute'); + $(form).css('top', '-1200px'); + $(form).css('left', '-1200px'); + $(form).appendTo('body'); + return form; + }, + + ajaxFileUpload: function(s) { + // TODO introduce global settings, allowing the client to modify them for all requests, not only timeout + s = jQuery.extend({}, jQuery.ajaxSettings, s); + var id = new Date().getTime() + var form = jQuery.createUploadForm(id, s.fileElementId); + var io = jQuery.createUploadIframe(id, s.secureuri); + var frameId = 'jUploadFrame' + id; + var formId = 'jUploadForm' + id; + // Watch for a new set of requests + if ( s.global && ! jQuery.active++ ) + { + jQuery.event.trigger( "ajaxStart" ); + } + var requestDone = false; + // Create the request object + var xml = {} + if ( s.global ) + jQuery.event.trigger("ajaxSend", [xml, s]); + // Wait for a response to come back + var uploadCallback = function(isTimeout) + { + var io = document.getElementById(frameId); + try { + if(io.contentWindow){ + xml.responseText = io.contentWindow.document.body ? + io.contentWindow.document.body.innerText : null; + xml.responseXML = io.contentWindow.document.XMLDocument ? + io.contentWindow.document.XMLDocument : io.contentWindow.document; + + } + else if(io.contentDocument) + { + xml.responseText = io.contentDocument.document.body ? + io.contentDocument.document.body.textContent || document.body.innerText : null; + xml.responseXML = io.contentDocument.document.XMLDocument ? + io.contentDocument.document.XMLDocument : io.contentDocument.document; + } + } + catch(e) + { + jQuery.handleError(s, xml, null, e); + } + if ( xml || isTimeout == "timeout") + { + requestDone = true; + var status; + try { + status = isTimeout != "timeout" ? "success" : "error"; + // Make sure that the request was successful or notmodified + if ( status != "error" ) + { + // process the data (runs the xml through httpData regardless of callback) + var data = jQuery.uploadHttpData( xml, s.dataType ); + // If a local callback was specified, fire it and pass it the data + if ( s.success ) + s.success( data, status ); + + // Fire the global callback + if( s.global ) + jQuery.event.trigger( "ajaxSuccess", [xml, s] ); + } else + jQuery.handleError(s, xml, status); + } catch(e) + { + status = "error"; + jQuery.handleError(s, xml, status, e); + } + + // The request was completed + if( s.global ) + jQuery.event.trigger( "ajaxComplete", [xml, s] ); + + // Handle the global AJAX counter + if ( s.global && ! --jQuery.active ) + jQuery.event.trigger( "ajaxStop" ); + + // Process result + if ( s.complete ) + s.complete(xml, status); + + jQuery(io).unbind(); + + setTimeout(function() + { try + { + $(io).remove(); + $(form).remove(); + + } catch(e) { + jQuery.handleError(s, xml, null, e); + } + }, 100) + xml = null; + } + } + // Timeout checker + if ( s.timeout > 0 ) { + setTimeout(function(){ + // Check to see if the request is still happening + if( !requestDone ) uploadCallback( "timeout" ); + }, s.timeout); + } + try + { + // var io = $('#' + frameId); + var form = $('#' + formId); + $(form).attr('action', s.url); + $(form).attr('method', 'POST'); + $(form).attr('target', frameId); + if(form.encoding) + { + form.encoding = 'multipart/form-data'; + } + else + { + form.enctype = 'multipart/form-data'; + } + $(form).submit(); + + } catch(e) + { + jQuery.handleError(s, xml, null, e); + } + if(window.attachEvent){ + document.getElementById(frameId).attachEvent('onload', uploadCallback); + } + else{ + document.getElementById(frameId).addEventListener('load', uploadCallback, false); + } + return {abort: function () {}}; + + }, + + uploadHttpData: function( r, type ) { + var data = !type; + data = type == "xml" || data ? r.responseXML : r.responseText; + // If the type is "script", eval it in global context + if ( type == "script" ) + jQuery.globalEval( data ); + // Get the JavaScript object, if JSON is used. + if ( type == "json" ) + eval( "data = " + data ); + // evaluate scripts within html + if ( type == "html" ) + jQuery("<div>").html(data).evalScripts(); + //alert($('param', data).each(function(){alert($(this).attr('value'));})); + return data; + } +}) + |