mirror of
https://github.com/EGroupware/egroupware.git
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260 lines
7.6 KiB
JavaScript
260 lines
7.6 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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var et2_file = et2_inputWidget.extend({
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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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"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."
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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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},
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asyncOptions: {},
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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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// 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) { return self.onStart(event, file_count); },
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onFinish: function(event, file_count) { return self.onFinish(event, file_count); },
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onStartOne: function(event, file_name, index, file_count) { return self.createStatus(event,file_name, index,file_count);},
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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_json_request.prototype._assembleAjaxUrl("etemplate_widget_file::ajax_upload::etemplate")
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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.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 = $j(document.createElement("input"))
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.attr("type", "file").attr("placeholder", this.options.blur)
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.appendTo(this.node);
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// Check for File interface, should fall back to normal form submit if missing
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if(typeof File != "undefined" && typeof (new XMLHttpRequest()).upload != "undefined")
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{
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this.input.html5_upload(this.asyncOptions);
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}
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else
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{
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// This may be a problem submitting via ajax
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}
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this.progress = this.options.progress ?
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$j(document.getElementById(this.options.progress)) :
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$j(document.createElement("div")).appendTo(this.node);
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this.progress.addClass("progress");
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if(this.options.multiple) {
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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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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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getInputNode: function() {
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return this.input[0];
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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 && typeof this.options.onStart == 'function') return 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 && typeof this.options.onFinish == 'function') return 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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createStatus: function(event, file_name, index, file_count) {
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var error = ""
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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");
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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 validation_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].data && 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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this.options.value[key] = response.response[0].data[key];
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}
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if(this.progress)
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{
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$j("[file='"+name+"']",this.progress).addClass("message success");
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}
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}
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else if (this.progress)
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{
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$j("[file='"+name+"']",this.progress).addClass("error").css("display", "block");
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}
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return true;
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},
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/**
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* Cancel a file
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*/
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cancel: function(e) {
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e.preventDefault();
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// Look for file name in list
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var target = $j(e.target).parents("li.message");
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console.info(target);
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for(var key in e.data.options.value) {
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if(e.data.options.value[key].name == target.attr("file"))
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{
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delete e.data.options.value[key];
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target.remove();
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return;
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}
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}
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// In case it didn't make it to the list (error)
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target.remove();
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$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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