mirror of
https://github.com/EGroupware/egroupware.git
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520 lines
14 KiB
JavaScript
520 lines
14 KiB
JavaScript
/**
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* EGroupware eTemplate2 - JS Number object
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*
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* @license http://opensource.org/licenses/gpl-license.php GPL - GNU General Public License
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* @package etemplate
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* @subpackage api
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* @link http://www.egroupware.org
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* @author Nathan Gray
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* @copyright Nathan Gray 2011
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* @version $Id$
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*/
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"use strict";
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/*egw:uses
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et2_core_inputWidget;
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phpgwapi.jquery.jquery.html5_upload;
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*/
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/**
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* Class which implements file upload
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*
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* @augments et2_inputWidget
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*/
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var et2_file = et2_inputWidget.extend(
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{
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attributes: {
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"multiple": {
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"name": "Multiple files",
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"type": "boolean",
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"default": false,
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"description": "Allow the user to select more than one file to upload at a time. Subject to browser support."
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},
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"max_file_size": {
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"name": "Maximum file size",
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"type": "integer",
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"default":"8388608",
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"description": "Largest file accepted, in bytes. Subject to server limitations. 8Mb = 8388608"
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},
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"mime": {
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"name": "Allowed file types",
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"type": "string",
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"default": et2_no_init,
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"description": "Mime type (eg: image/png) or regex (eg: /^text\//i) for allowed file types"
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},
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"blur": {
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"name": "Placeholder",
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"type": "string",
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"default": "",
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"description": "This text get displayed if an input-field is empty and does not have the input-focus (blur). It can be used to show a default value or a kind of help-text."
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},
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"progress": {
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"name": "Progress node",
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"type": "string",
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"default": et2_no_init,
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"description": "The ID of an alternate node (div) to display progress and results. The Node is fetched with et2 getWidgetById so you MUST use the id assigned in XET-File (it may not be available at creation time, so we (re)check on createStatus time)"
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},
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"onStart": {
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"name": "Start event handler",
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"type": "any",
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"default": et2_no_init,
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"description": "A (js) function called when an upload starts. Return true to continue with upload, false to cancel."
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},
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"onFinish": {
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"name": "Finish event handler",
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"type": "any",
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"default": et2_no_init,
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"description": "A (js) function called when all files to be uploaded are finished."
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},
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drop_target: {
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"name": "Optional, additional drop target for HTML5 uploads",
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"type": "string",
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"default": et2_no_init,
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"description": "The ID of an additional drop target for HTML5 drag-n-drop file uploads"
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}
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},
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asyncOptions: {},
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/**
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* Constructor
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*
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* @memberOf et2_file
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*/
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init: function() {
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this._super.apply(this, arguments);
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this.node = null;
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this.input = null;
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this.progress = null;
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if(!this.options.id) {
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console.warn("File widget needs an ID. Used 'file_widget'.");
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this.options.id = "file_widget";
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}
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// Legacy - id ending in [] means multiple
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if(this.options.id.substr(-2) == "[]")
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{
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this.options.multiple = true;
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}
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// Set up the URL to have the request ID & the widget ID
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var instance = this.getInstanceManager();
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var self = this;
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this.asyncOptions = jQuery.extend({
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// Callbacks
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onStart: function(event, file_count) {
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// Hide any previous errors
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self.hideMessage();
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return self.onStart(event, file_count);
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},
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onFinish: function(event, file_count) {
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self.onFinish.apply(self, [event, file_count]);
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// Fire legacy change action when done
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self.change(self.input);
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},
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onStartOne: function(event, file_name, index, file_count) {
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// Here 'this' is the input
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if(self.checkMime(this.files[index]))
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{
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return self.createStatus(event,file_name, index,file_count);
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}
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else
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{
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// Wrong mime type - show in the list of files
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return self.createStatus(
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self.egw().lang("File is of wrong type (%1 != %2)!", this.files[index].type, self.options.mime),
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file_name
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);
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}
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},
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onFinishOne: function(event, response, name, number, total) { return self.finishUpload(event,response,name,number,total);},
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onProgress: function(event, progress, name, number, total) { return self.onProgress(event,progress,name,number,total);},
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onError: function(event, name, error) { return self.onError(event,name,error);},
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sendBoundary: window.FormData || jQuery.browser.mozilla,
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beforeSend: function(form) { return self.beforeSend(form);},
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url: egw.ajaxUrl(self.egw().getAppName()+".etemplate_widget_file.ajax_upload.etemplate"),
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autoclear: !(this.options.onchange)
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},this.asyncOptions);
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this.asyncOptions.fieldName = this.options.id;
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this.createInputWidget();
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},
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destroy: function() {
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this._super.apply(this, arguments);
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this.set_drop_target(null);
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this.node = null;
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this.input = null;
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this.progress = null;
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},
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createInputWidget: function() {
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this.node = $j(document.createElement("div")).addClass("et2_file");
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this.input = $j(document.createElement("input"))
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.attr("type", "file").attr("placeholder", this.options.blur)
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.appendTo(this.node);
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// Check for File interface, should fall back to normal form submit if missing
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if(typeof File != "undefined" && typeof (new XMLHttpRequest()).upload != "undefined")
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{
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this.input.html5_upload(this.asyncOptions);
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}
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else
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{
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// This may be a problem submitting via ajax
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}
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if(this.options.progress)
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{
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var widget = this.getRoot().getWidgetById(this.options.progress);
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if(widget)
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{
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//may be not available at createInputWidget time
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this.progress = $j(widget.getDOMNode());
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}
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}
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if(!this.progress)
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{
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this.progress = $j(document.createElement("div")).appendTo(this.node);
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}
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this.progress.addClass("progress");
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if(this.options.multiple)
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{
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this.input.attr("multiple","multiple");
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}
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this.setDOMNode(this.node[0]);
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},
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/**
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* Set a widget or DOM node as a HTML5 file drop target
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*
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* @param String new_target widget ID or DOM node ID to be used as a new target
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*/
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set_drop_target: function(new_target)
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{
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// Cancel old drop target
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if(this.options.drop_target)
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{
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var widget = this.getRoot().getWidgetById(this.options.drop_target);
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var drop_target = widget && widget.getDOMNode() || document.getElementById(this.options.drop_target);
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$j(drop_target).off("."+this.id);
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}
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this.options.drop_target = new_target;
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if(!this.options.drop_target) return;
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// Set up new drop target
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var widget = this.getRoot().getWidgetById(this.options.drop_target);
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var drop_target = widget && widget.getDOMNode() || document.getElementById(this.options.drop_target);
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if(drop_target)
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{
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// Tell jQuery to include this property
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jQuery.event.props.push('dataTransfer');
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var self = this;
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drop_target.ondrop =function(event) {
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return false;
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};
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$j(drop_target)
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.on("drop."+this.id, jQuery.proxy(function(event) {
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event.stopPropagation();
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event.preventDefault();
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this.input.removeClass("ui-state-active");
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if(event.dataTransfer && event.dataTransfer.files.length > 0)
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{
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this.input[0].files = event.dataTransfer.files;
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}
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return false;
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}, this))
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.on("dragenter."+this.id,function(e) {
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// Accept the drop if at least one mimetype matches
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// Individual files will be rejected later
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var mime_ok = false;
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for(var file in e.dataTransfer.files)
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{
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mime_ok = mime_ok || self.checkMime(file);
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}
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if(!self.disabled && mime_ok)
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{
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self.input.addClass("ui-state-active");
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}
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// Returning true cancels, return false to allow
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return self.disabled || !mime_ok;
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})
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.on("dragleave."+this.id, function(e) {
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self.input.removeClass("ui-state-active");
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// Returning true cancels, return false to allow
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return self.disabled
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})
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.on("dragover."+this.id, function(e) {
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// Returning true cancels, return false to allow
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return self.disabled;
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})
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.on("dragend."+this.id, false);
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}
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else
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{
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this.egw().debug("warn", "Did not find file drop target %s", this.options.drop_target);
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}
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},
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attachToDOM: function() {
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this._super.apply(this, arguments);
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// Override parent's change, file widget will fire change when finished uploading
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this.input.unbind("change.et2_inputWidget");
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},
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getValue: function() {
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var value = this.options.value ? this.options.value : this.input.val();
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return value;
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},
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/**
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* Set the value of the file widget.
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*
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* If you pass a FileList or list of files, it will trigger the async upload
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*
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* @param {FileList|File[]|false} value List of files to be uploaded, or false to reset.
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*/
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set_value: function(value) {
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if(!value || typeof value == "undefined")
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{
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value = {};
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}
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if(jQuery.isEmptyObject(value))
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{
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this.options.value = {};
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this.progress.empty();
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// Reset the HTML element
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this.input.wrap('<form>').closest('form').get(0).reset();
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this.input.unwrap();
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return;
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}
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if(typeof value == 'object' && value.length && typeof value[0] == 'object' && value[0].name)
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{
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this.input[0].files = value;
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}
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},
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getInputNode: function() {
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if (typeof this.input == 'undefined') return false;
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return this.input[0];
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},
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set_mime: function(mime) {
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if(!mime)
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{
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this.options.mime = null;
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}
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if(mime.indexOf("/") != 0)
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{
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// Lower case it now, if it's not a regex
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this.options.mime = mime.toLowerCase();
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}
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else
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{
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// Convert into a js regex
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var parts = mime.substr(1).match(/(.*)\/([igm]?)$/);
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this.options.mime = new RegExp(parts[1],parts.length > 2 ? parts[2] : "");
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}
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},
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set_multiple: function(_multiple) {
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this.options.multiple = _multiple;
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if(_multiple)
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{
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return this.input.attr("multiple", "multiple");
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}
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return this.input.removeAttr("multiple");
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},
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/**
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* Check to see if the provided file's mimetype matches
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*
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* @param f File object
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* @return boolean
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*/
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checkMime: function(f) {
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// If missing, let the server handle it
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if(!this.options.mime || !f.type) return true;
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var is_preg = (typeof this.options.mime == "object");
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if(!is_preg && f.type.toLowerCase() == this.options.mime || is_preg && this.options.mime.test(f.type))
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{
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return true;
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}
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// Not right mime
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return false;
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},
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/**
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* Add in the request id
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*/
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beforeSend: function(form) {
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var instance = this.getInstanceManager();
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// Form object available, mess with it directly
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if(form) {
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return form.append("request_id", instance.etemplate_exec_id);
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}
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// No Form object, add in as string
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return 'Content-Disposition: form-data; name="request_id"\r\n\r\n'+instance.etemplate_exec_id+'\r\n';
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},
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/**
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* Disables submit buttons while uploading
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*/
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onStart: function(event, file_count) {
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this.disabled_buttons = $j("input[type='submit'], button").not("[disabled]").attr("disabled", true);
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event.data = this;
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if(this.options.onStart) return et2_call(this.options.onStart, event, file_count);
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return true;
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},
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/**
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* Re-enables submit buttons when done
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*/
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onFinish: function(event, file_count) {
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this.disabled_buttons.attr("disabled", false);
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event.data = this;
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if(this.options.onFinish) return et2_call(this.options.onFinish, event, file_count);
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},
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/**
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* Creates the elements used for displaying the file, and it's upload status, and
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* attaches them to the DOM
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*
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* @param _event Either the event, or an error message
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*/
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createStatus: function(_event, file_name, index, file_count) {
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var error = (typeof _event == "object" ? "" : _event);
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if(this.input[0].files[index]) {
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var file = this.input[0].files[index];
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if(file.size > this.options.max_file_size) {
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error = this.egw().lang("File too large. Maximum %1", et2_vfsSize.prototype.human_size(this.options.max_file_size));
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}
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}
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if(this.options.progress)
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{
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var widget = this.getRoot().getWidgetById(this.options.progress);
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if(widget)
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{
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this.progress = $j(widget.getDOMNode());
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this.progress.addClass("progress");
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}
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}
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if(this.progress)
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{
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var status = $j("<li file='"+file_name+"'>"+file_name
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+"<div class='remove'/><span class='progressBar'><p/></span></li>")
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.appendTo(this.progress);
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$j("div.remove",status).click(this, this.cancel);
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if(error != "")
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{
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status.addClass("message ui-state-error");
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status.append("<div>"+error+"</diff>");
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$j(".progressBar",status).css("display", "none");
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}
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}
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return error == "";
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},
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onProgress: function(event, percent, name, number, total) {
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if(this.progress)
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{
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$j("li[file='"+name+"'] > span.progressBar > p").css("width", Math.ceil(percent*100)+"%");
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}
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return true;
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},
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onError: function(event, name, error) {
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console.warn(event,name,error);
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},
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/**
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* A file upload is finished, update the UI
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*/
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finishUpload: function(event, response, name, number, total) {
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if(typeof response == 'string') response = jQuery.parseJSON(response);
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if(response.response[0] && typeof response.response[0].data.length == 'undefined') {
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if(typeof this.options.value != 'object') this.options.value = {};
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for(var key in response.response[0].data) {
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if(typeof response.response[0].data[key] == "string")
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{
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// Message from server - probably error
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$j("[file='"+name+"']",this.progress)
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.addClass("error")
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.css("display", "block")
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.text(response.response[0].data[key]);
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}
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else
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{
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this.options.value[key] = response.response[0].data[key];
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if(this.progress)
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{
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$j("[file='"+name+"']",this.progress).addClass("message success");
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}
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}
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}
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}
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else if (this.progress)
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{
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$j("[file='"+name+"']",this.progress)
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.addClass("ui-state-error")
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.css("display", "block")
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.text(this.egw().lang("Server error"));
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}
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if(this.options.onFinishOne)
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{
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return et2_call(this.options.onFinishOne,event,response,name,number,total);
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}
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return true;
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},
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/**
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* Remove a file from the list of values
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*/
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remove_file: function(filename)
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{
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//console.info(filename);
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for(var key in this.options.value)
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{
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if(this.options.value[key].name == filename)
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{
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delete this.options.value[key];
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$j('[file="'+filename+'"]',this.node).remove();
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return;
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}
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}
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},
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/**
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* Cancel a file - event callback
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*/
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cancel: function(e)
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{
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e.preventDefault();
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// Look for file name in list
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var target = $j(e.target).parents("li.message");
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e.data.remove_file.apply(e.data,[target.attr("file")]);
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// In case it didn't make it to the list (error)
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target.remove();
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$j(e.target).remove();
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}
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});
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et2_register_widget(et2_file, ["file"]);
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