mirror of
https://github.com/EGroupware/egroupware.git
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590 lines
15 KiB
JavaScript
590 lines
15 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.Resumable.resumable;
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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":0,
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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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label: {
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"name": "Label of file upload",
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"type": "string",
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"default": "Choose file...",
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"description": "String caption to be displayed on file upload span"
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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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this.span = 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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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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},
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onStartOne: function(event, file_name, index, file_count) {
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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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beforeSend: function(form) { return self.beforeSend(form);},
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target: egw.ajaxUrl(self.egw().getAppName()+".etemplate_widget_file.ajax_upload.etemplate"),
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query: function(file) {return self.beforeSend(file);},
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// Disable checking for already uploaded chunks
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testChunks: false
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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.span = 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.span = $j(document.createElement("span"))
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.addClass('et2_file_span et2_button et2_button_text')
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.appendTo (this.node);
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var span = this.span;
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this.input = $j(document.createElement("input"))
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.attr("type", "file").attr("placeholder", this.options.blur)
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.addClass ("et2_file_upload")
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.appendTo(this.node)
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.hover(function(e){
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$j(span)
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.toggleClass('et2_file_spanHover');
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})
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.on({
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mousedown:function (e){
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$j(span).addClass('et2_file_spanActive');
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},
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mouseup:function (e){
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$j(span).removeClass('et2_file_spanActive');
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}
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});
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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.resumable = new Resumable(this.asyncOptions);
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this.resumable.assignBrowse(this.input);
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this.resumable.on('fileAdded', jQuery.proxy(this._fileAdded, this));
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this.resumable.on('fileProgress', jQuery.proxy(this._fileProgress, this));
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this.resumable.on('fileSuccess', jQuery.proxy(this.finishUpload, this));
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this.resumable.on('complete', jQuery.proxy(this.onFinish, this));
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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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if(drop_target)
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{
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this.resumable.unAssignDrop(drop_target);
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}
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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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this.resumable.assignDrop(drop_target);
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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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* @param {Event} event Most browsers require the user to initiate file transfers in some way.
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* Pass the event in, if you have it.
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*/
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set_value: function(value, event) {
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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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try
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{
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this.input[0].files = value;
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}
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catch (e)
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{
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var self = this;
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var args = arguments;
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jQuery.each(value, function(i,file) {self.resumable.addFile(this,event);});
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}
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}
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},
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/**
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* Set the value for label
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* The label is used as caption for span tag which customize the HTML file upload styling
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*
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* @param {string} value text value of label
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*/
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set_label: function (value)
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{
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if (this.span != null && value != null)
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{
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this.span.text(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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_fileAdded: function(file,event) {
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// Manual additions have no event
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if(typeof event == 'undefined')
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{
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event = {};
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}
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// Trigger start of uploading, calls callback
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if(!this.resumable.isUploading())
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{
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if (!(this.onStart(event,this.resumable.files.length))) return;
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}
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// Here 'this' is the input
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if(this.checkMime(file.file))
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{
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if(this.createStatus(event,file))
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{
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// Actually start uploading
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this.resumable.upload();
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}
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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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/**
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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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return {
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request_id: instance.etemplate_exec_id,
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widget_id: this.id
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};
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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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// Hide any previous errors
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this.hideMessage();
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// Disable buttons
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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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// Callback
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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() {
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this.disabled_buttons.attr("disabled", false);
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var file_count = this.resumable.files.length;
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// Remove files from list
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for(var i = 0; i < this.resumable.files.length; i++)
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{
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this.resumable.removeFile(this.resumable.files[i]);
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}
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var event = new Event('upload');
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event.data = this;
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var result = false;
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if(this.options.onFinish && !jQuery.isEmptyObject(this.getValue()))
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{
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result = et2_call(this.options.onFinish, event, file_count);
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}
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else
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{
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result = (file_count == 0 || !jQuery.isEmptyObject(this.getValue()));
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}
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if(result)
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{
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// Fire legacy change action when done
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this.change(this.input);
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}
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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) {
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var error = (typeof _event == "object" ? "" : _event);
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if(this.options.max_file_size && 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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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 fileName = file.fileName || 'file';
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var status = $j("<li data-file='"+fileName+"'>"+fileName
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+"<div class='remove'/><span class='progressBar'><p/></span></li>")
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.appendTo(this.progress);
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$j("div.remove",status).on('click', file, jQuery.proxy(this.cancel,this));
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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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$j(".progressBar",status).css("display", "none");
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}
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}
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return error == "";
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},
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_fileProgress: function(file) {
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if(this.progress)
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{
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$j("li[data-file='"+file.fileName+"'] > span.progressBar > p").css("width", Math.ceil(file.progress()*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(file, response) {
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var name = file.fileName || 'file';
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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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$j("[data-file='"+name+"']",this.progress)
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.addClass("error")
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.css("display", "block")
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.text(response.response[0].data[key]);
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}
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else
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{
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this.options.value[key] = response.response[0].data[key];
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if(this.progress)
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{
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$j("[data-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("[data-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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|
// Callback
|
|
if(this.options.onFinishOne)
|
|
{
|
|
return et2_call(this.options.onFinishOne,event,response,name);
|
|
}
|
|
return true;
|
|
},
|
|
|
|
/**
|
|
* Remove a file from the list of values
|
|
*/
|
|
remove_file: function(file)
|
|
{
|
|
//console.info(filename);
|
|
for(var key in this.options.value)
|
|
{
|
|
if(this.options.value[key].name == file.fileName)
|
|
{
|
|
delete this.options.value[key];
|
|
$j('[data-file="'+file.fileName+'"]',this.node).remove();
|
|
return;
|
|
}
|
|
}
|
|
if(!file.isComplete()) file.cancel();
|
|
},
|
|
|
|
/**
|
|
* Cancel a file - event callback
|
|
*/
|
|
cancel: function(e)
|
|
{
|
|
e.preventDefault();
|
|
// Look for file name in list
|
|
var target = $j(e.target).parents("li");
|
|
|
|
this.remove_file(e.data);
|
|
|
|
// In case it didn't make it to the list (error)
|
|
target.remove();
|
|
$j(e.target).remove();
|
|
}
|
|
});
|
|
|
|
et2_register_widget(et2_file, ["file"]);
|
|
|