/*
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* One Click Upload - jQuery Plugin
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* Copyright (c) 2008 Michael Mitchell - http://www.michaelmitchell.co.nz
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*/
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(function($){
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$.fn.upload = function(options) {
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/** Merge the users options with our defaults */
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options = $.extend({
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name: 'file',
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enctype: 'multipart/form-data',
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action: '',
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autoSubmit: true,
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onSubmit: function() {},
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onComplete: function() {},
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onSelect: function() {},
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params: {}
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}, options);
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return new $.ocupload(this, options);
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},
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$.ocupload = function(element, options) {
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/** Fix scope problems */
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var self = this;
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/** A unique id so we can find our elements later */
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var id = new Date().getTime().toString().substr(8);
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/** Upload Iframe */
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var iframe = $(
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'<iframe '+
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'id="iframe'+id+'" '+
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'name="iframe'+id+'"'+
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'></iframe>'
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).css({
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display: 'none'
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});
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/** Form */
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var form = $(
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'<form '+
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'method="post" '+
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'enctype="'+options.enctype+'" '+
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'action="'+options.action+'" '+
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'target="iframe'+id+'"'+
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'></form>'
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).css({
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margin: 0,
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padding: 0
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});
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/** File Input */
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var input = $(
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'<input '+
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'name="'+options.name+'" '+
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'type="file" '+
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'/>'
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).css({
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position: 'relative',
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display: 'block',
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marginLeft: -175+'px',
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opacity: 0
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});
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/** Put everything together */
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element.wrap('<div></div>'); //container
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form.append(input);
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element.after(form);
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element.after(iframe);
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/** Find the container and make it nice and snug */
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var container = element.parent().css({
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position: 'relative',
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height: element.outerHeight()+'px',
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width: element.outerWidth()+'px',
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overflow: 'hidden',
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cursor: 'pointer',
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margin: 0,
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padding: 0
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});
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/** Put our file input in the right place */
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input.css('marginTop', -container.height()-10+'px');
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/** Move the input with the mouse to make sure it get clicked! */
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container.mousemove(function(e){
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input.css({
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top: e.pageY-container.offset().top+'px',
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left: e.pageX-container.offset().left+'px'
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});
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});
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/** Watch for file selection */
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input.change(function() {
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/** Do something when a file is selected. */
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self.onSelect();
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/** Submit the form automaticly after selecting the file */
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if(self.autoSubmit) {
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self.submit();
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}
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});
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/** Methods */
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$.extend(this, {
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autoSubmit: true,
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onSubmit: options.onSubmit,
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onComplete: options.onComplete,
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onSelect: options.onSelect,
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/** get filename */
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filename: function() {
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return input.attr('value');
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},
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/** get/set params */
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params: function(params) {
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var params = params ? params : false;
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if(params) {
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options.params = $.extend(options.params, params);
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}
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else {
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return options.params;
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}
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},
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/** get/set name */
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name: function(name) {
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var name = name ? name : false;
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if(name) {
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input.attr('name', value);
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}
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else {
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return input.attr('name');
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}
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},
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/** get/set action */
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action: function(action) {
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var action = action ? action : false;
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if(action) {
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form.attr('action', action);
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}
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else {
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return form.attr('action');
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}
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},
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/** get/set enctype */
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enctype: function(enctype) {
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var enctype = enctype ? enctype : false;
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if(enctype) {
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form.attr('enctype', enctype);
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}
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else {
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return form.attr('enctype');
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}
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},
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/** set options */
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set: function(obj, value) {
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var value = value ? value : false;
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function option(action, value) {
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switch(action) {
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default:
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throw new Error('[jQuery.ocupload.set] \''+action+'\' is an invalid option.');
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break;
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case 'name':
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self.name(value);
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break;
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case 'action':
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self.action(value);
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break;
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case 'enctype':
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self.enctype(value);
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break;
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case 'params':
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self.params(value);
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break;
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case 'autoSubmit':
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self.autoSubmit = value;
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break;
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case 'onSubmit':
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self.onSubmit = value;
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break;
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case 'onComplete':
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self.onComplete = value;
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break;
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case 'onSelect':
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self.onSelect = value;
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break;
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}
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}
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if(value) {
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option(obj, value);
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}
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else {
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$.each(obj, function(key, value) {
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option(key, value);
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});
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}
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},
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/** Submit the form */
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submit: function() {
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/** Do something before we upload */
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this.onSubmit();
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/** add additional paramters before sending */
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$.each(options.params, function(key, value) {
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form.append($(
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'<input '+
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'type="hidden" '+
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'name="'+key+'" '+
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'value="'+value+'" '+
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'/>'
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));
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});
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/** Submit the actual form */
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form.submit();
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/** Do something after we are finished uploading */
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iframe.unbind().load(function() {
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/** Get a response from the server in plain text */
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var myFrame = document.getElementById(iframe.attr('name'));
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var response = $(myFrame.contentWindow.document.body).text();
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/** Do something on complete */
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self.onComplete(response); //done :D
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});
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}
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});
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}
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})(jQuery);
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