text: /**
   * jquery.plupload.queue.js
   *
   * Copyright 2009, Moxiecode Systems AB
   * Released under GPL License.
   *
   * License: http://www.plupload.com/license
   * Contributing: http://www.plupload.com/contributing
   */
  
  /* global jQuery:true, alert:true */
  
  /**
  jQuery based implementation of the Plupload API - multi-runtime file uploading API.
  
  To use the widget you must include _jQuery_. It is not meant to be extended in any way and is provided to be
  used as it is.
  
  @example
  	<!-- Instantiating: -->
  	<div id="uploader">
  		<p>Your browser doesn't have Flash, Silverlight or HTML5 support.</p>
  	</div>
  
  	<script>
  		$('#uploader').pluploadQueue({
  			url : '../upload.php',
  			filters : [
  				{title : "Image files", extensions : "jpg,gif,png"}
  			],
  			rename: true,
  			flash_swf_url : '../../js/Moxie.swf',
  			silverlight_xap_url : '../../js/Moxie.xap',
  		});
  	</script>
  
  @example
  	// Retrieving a reference to plupload.Uploader object
  	var uploader = $('#uploader').pluploadQueue();
  
  	uploader.bind('FilesAdded', function() {
  		
  		// Autostart
  		setTimeout(uploader.start, 1); // "detach" from the main thread
  	});
  
  @class pluploadQueue
  @constructor
  @param {Object} settings For detailed information about each option check documentation.
  	@param {String} settings.url URL of the server-side upload handler.
  	@param {Number|String} [settings.chunk_size=0] Chunk size in bytes to slice the file into. Shorcuts with b, kb, mb, gb, tb suffixes also supported. `e.g. 204800 or "204800b" or "200kb"`. By default - disabled.
  	@param {String} [settings.file_data_name="file"] Name for the file field in Multipart formated message.
  	@param {Array} [settings.filters=[]] Set of file type filters, each one defined by hash of title and extensions. `e.g. {title : "Image files", extensions : "jpg,jpeg,gif,png"}`. Dispatches `plupload.FILE_EXTENSION_ERROR`
  	@param {String} [settings.flash_swf_url] URL of the Flash swf.
  	@param {Object} [settings.headers] Custom headers to send with the upload. Hash of name/value pairs.
  	@param {Number|String} [settings.max_file_size] Maximum file size that the user can pick, in bytes. Optionally supports b, kb, mb, gb, tb suffixes. `e.g. "10mb" or "1gb"`. By default - not set. Dispatches `plupload.FILE_SIZE_ERROR`.
  	@param {Number} [settings.max_retries=0] How many times to retry the chunk or file, before triggering Error event.
  	@param {Boolean} [settings.multipart=true] Whether to send file and additional parameters as Multipart formated message.
  	@param {Object} [settings.multipart_params] Hash of key/value pairs to send with every file upload.
  	@param {Boolean} [settings.multi_selection=true] Enable ability to select multiple files at once in file dialog.
  	@param {Boolean} [settings.prevent_duplicates=false] Do not let duplicates into the queue. Dispatches `plupload.FILE_DUPLICATE_ERROR`.
  	@param {String|Object} [settings.required_features] Either comma-separated list or hash of required features that chosen runtime should absolutely possess.
  	@param {Object} [settings.resize] Enable resizng of images on client-side. Applies to `image/jpeg` and `image/png` only. `e.g. {width : 200, height : 200, quality : 90, crop: true}`
  		@param {Number} [settings.resize.width] If image is bigger, it will be resized.
  		@param {Number} [settings.resize.height] If image is bigger, it will be resized.
  		@param {Number} [settings.resize.quality=90] Compression quality for jpegs (1-100).
  		@param {Boolean} [settings.resize.crop=false] Whether to crop images to exact dimensions. By default they will be resized proportionally.
  	@param {String} [settings.runtimes="html5,flash,silverlight,html4"] Comma separated list of runtimes, that Plupload will try in turn, moving to the next if previous fails.
  	@param {String} [settings.silverlight_xap_url] URL of the Silverlight xap.
  	@param {Boolean} [settings.unique_names=false] If true will generate unique filenames for uploaded files.
  
  	@param {Boolean} [settings.dragdrop=true] Enable ability to add file to the queue by drag'n'dropping them from the desktop.
  	@param {Boolean} [settings.rename=false] Enable ability to rename files in the queue.
  	@param {Boolean} [settings.multiple_queues=true] Re-activate the widget after each upload procedure.
  */
  ;(function($) {
  	var uploaders = {};
  
  	function _(str) {
  		return plupload.translate(str) || str;
  	}
  
  	function renderUI(id, target) {
  		// Remove all existing non plupload items
  		target.contents().each(function(i, node) {
  			node = $(node);
  
  			if (!node.is('.plupload')) {
  				node.remove();
  			}
  		});
  
  		target.prepend(
  			'<div class="plupload_wrapper plupload_scroll">' +
  				'<div id="' + id + '_container" class="plupload_container">' +
  					'<div class="plupload">' +
  						'<div class="plupload_header">' +
  							'<div class="plupload_header_content">' +
  								'<div class="plupload_header_title">' + _('Select files') + '</div>' +
  								'<div class="plupload_header_text">' + _('Add files to the upload queue and click the start button.') + '</div>' +
  							'</div>' +
  						'</div>' +
  
  						'<div class="plupload_content">' +
  							'<div class="plupload_filelist_header">' +
  								'<div class="plupload_file_name">' + _('Filename') + '</div>' +
  								'<div class="plupload_file_action">&nbsp;</div>' +
  								'<div class="plupload_file_status"><span>' + _('Status') + '</span></div>' +
  								'<div class="plupload_file_size">' + _('Size') + '</div>' +
  								'<div class="plupload_clearer">&nbsp;</div>' +
  							'</div>' +
  
  							'<ul id="' + id + '_filelist" class="plupload_filelist"></ul>' +
  
  							'<div class="plupload_filelist_footer">' +
  								'<div class="plupload_file_name">' +
  									'<div class="plupload_buttons">' +
  										'<a href="#" class="plupload_button plupload_add" id="' + id + '_browse">' + _('Add Files') + '</a>' +
  										'<a href="#" class="plupload_button plupload_start">' + _('Start Upload') + '</a>' +
  									'</div>' +
  									'<span class="plupload_upload_status"></span>' +
  								'</div>' +
  								'<div class="plupload_file_action"></div>' +
  								'<div class="plupload_file_status"><span class="plupload_total_status">0%</span></div>' +
  								'<div class="plupload_file_size"><span class="plupload_total_file_size">0 b</span></div>' +
  								'<div class="plupload_progress">' +
  									'<div class="plupload_progress_container">' +
  										'<div class="plupload_progress_bar"></div>' +
  									'</div>' +
  								'</div>' +
  								'<div class="plupload_clearer">&nbsp;</div>' +
  							'</div>' +
  						'</div>' +
  					'</div>' +
  				'</div>' +
  				'<input type="hidden" id="' + id + '_count" name="' + id + '_count" value="0" />' +
  			'</div>'
  		);
  	}
  
  	$.fn.pluploadQueue = function(settings) {
  		if (settings) {
  			this.each(function() {
  				var uploader, target, id, contents_bak;
  
  				target = $(this);
  				id = target.attr('id');
  
  				if (!id) {
  					id = plupload.guid();
  					target.attr('id', id);
  				}
  
  				contents_bak = target.html();
  				renderUI(id, target);
  
  				settings = $.extend({
  					dragdrop : true,
  					browse_button : id + '_browse',
  					container : id
  				}, settings);
  
  				// Enable drag/drop (see PostInit handler as well)
  				if (settings.dragdrop) {
  					settings.drop_element = id + '_filelist';
  				}
  
  				uploader = new plupload.Uploader(settings);
  
  				uploaders[id] = uploader;
  
  				function handleStatus(file) {
  					var actionClass;
  
  					if (file.status == plupload.DONE) {
  						actionClass = 'plupload_done';
  					}
  
  					if (file.status == plupload.FAILED) {
  						actionClass = 'plupload_failed';
  					}
  
  					if (file.status == plupload.QUEUED) {
  						actionClass = 'plupload_delete';
  					}
  
  					if (file.status == plupload.UPLOADING) {
  						actionClass = 'plupload_uploading';
  					}
  
  					var icon = $('#' + file.id).attr('class', actionClass).find('a').css('display', 'block');
  					if (file.hint) {
  						icon.attr('title', file.hint);	
  					}
  				}
  
  				function updateTotalProgress() {
  					$('span.plupload_total_status', target).html(uploader.total.percent + '%');
  					$('div.plupload_progress_bar', target).css('width', uploader.total.percent + '%');
  					$('span.plupload_upload_status', target).html(
  						plupload.sprintf(_('Uploaded %d/%d files'), uploader.total.uploaded, uploader.files.length)
  					);
  				}
  
  				function updateList() {
  					var fileList = $('ul.plupload_filelist', target).html(''), inputCount = 0, inputHTML;
  
  					$.each(uploader.files, function(i, file) {
  						inputHTML = '';
  
  						if (file.status == plupload.DONE) {
  							if (file.target_name) {
  								inputHTML += '<input type="hidden" name="' + id + '_' + inputCount + '_tmpname" value="' + plupload.xmlEncode(file.target_name) + '" />';
  							}
  
  							inputHTML += '<input type="hidden" name="' + id + '_' + inputCount + '_name" value="' + plupload.xmlEncode(file.name) + '" />';
  							inputHTML += '<input type="hidden" name="' + id + '_' + inputCount + '_status" value="' + (file.status == plupload.DONE ? 'done' : 'failed') + '" />';
  	
  							inputCount++;
  
  							$('#' + id + '_count').val(inputCount);
  						}
  
  						fileList.append(
  							'<li id="' + file.id + '">' +
  								'<div class="plupload_file_name"><span>' + file.name + '</span></div>' +
  								'<div class="plupload_file_action"><a href="#"></a></div>' +
  								'<div class="plupload_file_status">' + file.percent + '%</div>' +
  								'<div class="plupload_file_size">' + plupload.formatSize(file.size) + '</div>' +
  								'<div class="plupload_clearer">&nbsp;</div>' +
  								inputHTML +
  							'</li>'
  						);
  
  						handleStatus(file);
  
  						$('#' + file.id + '.plupload_delete a').click(function(e) {
  							$('#' + file.id).remove();
  							uploader.removeFile(file);
  
  							e.preventDefault();
  						});
  					});
  
  					$('span.plupload_total_file_size', target).html(plupload.formatSize(uploader.total.size));
  
  					if (uploader.total.queued === 0) {
  						$('span.plupload_add_text', target).html(_('Add Files'));
  					} else {
  						$('span.plupload_add_text', target).html(plupload.sprintf(_('%d files queued'), uploader.total.queued));
  					}
  
  					$('a.plupload_start', target).toggleClass('plupload_disabled', uploader.files.length == (uploader.total.uploaded + uploader.total.failed));
  
  					// Scroll to end of file list
  					fileList[0].scrollTop = fileList[0].scrollHeight;
  
  					updateTotalProgress();
  
  					// Re-add drag message if there is no files
  					if (!uploader.files.length && uploader.features.dragdrop && uploader.settings.dragdrop) {
  						$('#' + id + '_filelist').append('<li class="plupload_droptext">' + _("Drag files here.") + '</li>');
  					}
  				}
  
  				function destroy() {
  					delete uploaders[id];
  					uploader.destroy();
  					target.html(contents_bak);
  					uploader = target = contents_bak = null;
  				}
  
  				uploader.bind("UploadFile", function(up, file) {
  					$('#' + file.id).addClass('plupload_current_file');
  				});
  
  				uploader.bind('Init', function(up, res) {
  					// Enable rename support
  					if (!settings.unique_names && settings.rename) {
  						target.on('click', '#' + id + '_filelist div.plupload_file_name span', function(e) {
  							var targetSpan = $(e.target), file, parts, name, ext = "";
  
  							// Get file name and split out name and extension
  							file = up.getFile(targetSpan.parents('li')[0].id);
  							name = file.name;
  							parts = /^(.+)(\.[^.]+)$/.exec(name);
  							if (parts) {
  								name = parts[1];
  								ext = parts[2];
  							}
  
  							// Display input element
  							targetSpan.hide().after('<input type="text" />');
  							targetSpan.next().val(name).focus().blur(function() {
  								targetSpan.show().next().remove();
  							}).keydown(function(e) {
  								var targetInput = $(this);
  
  								if (e.keyCode == 13) {
  									e.preventDefault();
  
  									// Rename file and glue extension back on
  									file.name = targetInput.val() + ext;
  									targetSpan.html(file.name);
  									targetInput.blur();
  								}
  							});
  						});
  					}
  
  					$('#' + id + '_container').attr('title', 'Using runtime: ' + res.runtime);
  
  					$('a.plupload_start', target).click(function(e) {
  						if (!$(this).hasClass('plupload_disabled')) {
  							uploader.start();
  						}
  
  						e.preventDefault();
  					});
  
  					$('a.plupload_stop', target).click(function(e) {
  						e.preventDefault();
  						uploader.stop();
  					});
  
  					$('a.plupload_start', target).addClass('plupload_disabled');
  				});
  
  				uploader.bind("Error", function(up, err) {
  					var file = err.file, message;
  
  					if (file) {
  						message = err.message;
  
  						if (err.details) {
  							message += " (" + err.details + ")";
  						}
  
  						if (err.code == plupload.FILE_SIZE_ERROR) {
  							alert(_("Error: File too large:") + " " + file.name);
  						}
  
  						if (err.code == plupload.FILE_EXTENSION_ERROR) {
  							alert(_("Error: Invalid file extension:") + " " + file.name);
  						}
  						
  						file.hint = message;
  						$('#' + file.id).attr('class', 'plupload_failed').find('a').css('display', 'block').attr('title', message);
  					}
  
  					if (err.code === plupload.INIT_ERROR) {
  						setTimeout(function() {
  							destroy();
  						}, 1);
  					}
  				});
  
  				uploader.bind("PostInit", function(up) {
  					// features are populated only after input components are fully instantiated
  					if (up.settings.dragdrop && up.features.dragdrop) {
  						$('#' + id + '_filelist').append('<li class="plupload_droptext">' + _("Drag files here.") + '</li>');
  					}
  				});
  
  				uploader.init();
  
  				uploader.bind('StateChanged', function() {
  					if (uploader.state === plupload.STARTED) {
  						$('li.plupload_delete a,div.plupload_buttons', target).hide();
  						uploader.disableBrowse(true);
  
  						$('span.plupload_upload_status,div.plupload_progress,a.plupload_stop', target).css('display', 'block');
  						$('span.plupload_upload_status', target).html('Uploaded ' + uploader.total.uploaded + '/' + uploader.files.length + ' files');
  
  						if (settings.multiple_queues) {
  							$('span.plupload_total_status,span.plupload_total_file_size', target).show();
  						}
  					} else {
  						updateList();
  						$('a.plupload_stop,div.plupload_progress', target).hide();
  						$('a.plupload_delete', target).css('display', 'block');
  
  						if (settings.multiple_queues && uploader.total.uploaded + uploader.total.failed == uploader.files.length) {
  							$(".plupload_buttons,.plupload_upload_status", target).css("display", "inline");
  							uploader.disableBrowse(false);
  
  							$(".plupload_start", target).addClass("plupload_disabled");
  							$('span.plupload_total_status,span.plupload_total_file_size', target).hide();
  						}
  					}
  				});
  
  				uploader.bind('FilesAdded', updateList);
  
  				uploader.bind('FilesRemoved', function() {
  					// since the whole file list is redrawn for every change in the queue
  					// we need to scroll back to the file removal point to avoid annoying
  					// scrolling to the bottom bug (see #926)
  					var scrollTop = $('#' + id + '_filelist').scrollTop();
  					updateList();
  					$('#' + id + '_filelist').scrollTop(scrollTop);
  				});
  
  				uploader.bind('FileUploaded', function(up, file) {
  					handleStatus(file);
  				});
  
  				uploader.bind("UploadProgress", function(up, file) {
  					// Set file specific progress
  					$('#' + file.id + ' div.plupload_file_status', target).html(file.percent + '%');
  
  					handleStatus(file);
  					updateTotalProgress();
  				});
  
  				// Call setup function
  				if (settings.setup) {
  					settings.setup(uploader);
  				}
  			});
  
  			return this;
  		} else {
  			// Get uploader instance for specified element
  			return uploaders[$(this[0]).attr('id')];
  		}
  	};
  })(jQuery);
  