/*
* Copyright (C) 2015 "IoT.bzh"
* Author "Fulup Ar Foll"
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details..
*
* Reference:
* https://developer.mozilla.org/en/docs/Web/API/FileReader
* https://developer.mozilla.org/en-US/docs/Using_files_from_web_applications#Using_hidden_file_input_elements_using_the_click%28%29_method
* https://uncorkedstudios.com/blog/multipartformdata-file-upload-with-angularjs
* https://www.terlici.com/2015/05/16/uploading-files-locally.html
* https://github.com/nervgh/angular-file-upload/blob/master/src/services/FileUploader.js
* https://stuk.github.io/jszip/documentation/howto/read_zip.html
* http://onehungrymind.com/zip-parsing-jszip-angular/
* http://stackoverflow.com/questions/15341912/how-to-go-from-blob-to-arraybuffer
*
* Bugs: zip file sent even when flag as invalid
*/
(function() {
'use strict';
var tmplAppli = '<input type="file" name="{{name}}-input" onchange="angular.element(this).scope().UpLoadFile(this.files)" accept="{{mimetype}}" style="display:none">'+
'<div class="upload-file" ng-click="imgClicked()">' +
'<i class="{{icon}}"></i> <span>{{label}}</span>' +
'<range-slider ng-show="!noslider" id="{{name}}-slider" automatic=true inithook="SliderInitCB"></range-slider>' +
'</div>';
var tmplModal = '<span class="modal-text">Upload Application <b>{{appname}}</b> ?</span>' +
'<div>'+
'<img ng-src="{{icon}}">' +
'<submit-button icon="fi-x" label="Cancel" clicked="abandon"></submit-button>'+
'<submit-button icon="fi-like" label="Install" clicked="success"></submit-button> ' +
'</div>';
var tmplError = '<span class="modal-text">Invalid Application <b>{{appname}}</b> ?</span>' +
'<div>'+
'<img ng-src="{{icon}}">' +
'<submit-button icon="fi-x" label="Close" clicked="abandon"></submit-button>'+
'</div>';
// Service Create xform insert files in and Post it to url
function LoadFileSvc (scope, files, fileCB) {
var xmlReq = new XMLHttpRequest();
var xform = new FormData();
// Update slider during Upload
xmlReq.upload.onprogress = function (event) {
var progress = Math.round(event.lengthComputable ? event.loaded * 100 / event.total : 0);
if (scope.slider) scope.slider.setValue (progress);
};
// Upload is finish let's notify controler callback
xmlReq.onload = function () {
scope.divElem.addClass ("success");
scope.divElem.removeClass ("error");
var response ={
status : xmlReq.status,
headers: xmlReq.getAllResponseHeaders()
};
scope.callback (response);
};
xmlReq.onerror = function () {
scope.divElem.addClass ("error");
scope.divElem.removeClass ("success");
};
xmlReq.onabort = function () {
scope.divElem.addClass ("error");
scope.divElem.removeClass ("success");
var response ={
status : xmlReq.status,
headers: xmlReq.getAllResponseHeaders()
};
scope.callback (response);
};
this.postfile = function(posturl) {
// everything looks OK let's Post it
xmlReq.open("POST", posturl , true);
xmlReq.send(xform);
};
for (var i = 0; i < files.length; i++) {
this.file = files[i];
// Unknow Type !!! if (!this.file.type.match(scope.mimetype)) continue;
console.log ("Selected file=" + this.file.name + " size="+ this.file.size/1024 + " Type="+ this.file.type);
this.basename= this.file.name.split('/').reverse()[0];
// File to upload is too big
if (isNaN(this.file.size) || this.file.size > scope.maxsize*1024) {
setTimeout (fileCB,100); // On error asynchronous callback without argument
} else {
// If File is readable let's read it
var reader = new FileReader();
reader.readAsArrayBuffer(this.file);
reader.onload = fileCB;
// if everything is OK let's add file to xform
xform.append(scope.name, this.file, this.file.name);
}
}
}
angular.module('UploadFiles',['AppConfig', 'ModalNotification', 'RangeSlider'])
.directive('uploadAppli', function(AppConfig, JQemu, Notification, ModalFactory, $timeout) {
function mymethods(scope, elem, attrs) {
// get widget image handle from template
scope.inputElem = elem.find('input');
scope.divElem = elem.find('div');
// Image was ckick let's simulate an input (file) click
scope.imgClicked = function () {
scope.inputElem[0].click(); // Warning Angular TriggerEvent does not work!!!
};
// Slider control handle registration after creation
scope.SliderInitCB=function (slider) {
scope.slider= slider;
};
// Upload is delegated to a shared function
scope.UpLoadFile=function (files) {
var handle;
var appicon;
var template;
var success = function() {
// This Looks OK let's Post Xform/File
handle.postfile(attrs.posturl + "?token=" + AppConfig.session.token);
scope.modal.deactivate();
$timeout (function() {scope.modal.destroy();}, 1000);
};
var abandon = function() {
scope.modal.deactivate();
$timeout (function() {scope.modal.destroy();}, 1000);
};
var readerCB = function (upload) {
// File upload fail handle error
if (! upload) {
if (handle.file.size > scope.maxsize*1024) {
appicon = scope.istoobig;
template= tmplError;
}
if (isNaN(handle.file.size)) {
appicon = scope.isnotvalid;
template= tmplError;
}
} else {
var zipapp = new JSZip (upload.target.result);
var thumbnail = zipapp.file("icon_128.png");
// Check is we have a thumbnail within loaded Zipfile
if (!thumbnail) {
console.log ("This is not a valid Application Framework APP");
appicon = scope.isnotvalid;
template= tmplError;
} else {
//scope.imgElem[0].src = window.URL.createObjectURL(new Blob([thumbnail.asArrayBuffer()], {type: "image"}));
appicon = window.URL.createObjectURL(new Blob([thumbnail.asArrayBuffer()], {type: "image"}));
template = tmplModal;
}
}
// reference http://foundation.zurb.com/apps/docs/#!/angular-modules
var config = {
animationIn: 'slideInFromTop',
contentScope: {
success : success,
abandon : abandon,
icon : appicon,
appname : handle.basename
}, template : template
};
// Popup Modal to render application data
scope.modal = new ModalFactory(config);
scope.modal.activate ();
};
// Load file within browser and if OK call readerCB
handle = new LoadFileSvc (scope, files, readerCB);
console.log (handle);
};
// Initiallize default values from attributes values
scope.name= attrs.name || 'appli';
scope.category= attrs.category || 'appli';
scope.mimetype= (attrs.accept || '.wgt');
scope.maxsize = attrs.maxsize || 100000; // default max size 100MB
scope.regexp = new RegExp (attrs.accept+ '.*','i');
scope.icon = attrs.icon || 'fi-upload';
scope.label = attrs.label || 'Upload';
if (attrs.thumbnail) scope.isnotvalid= AppConfig.paths[scope.category] + attrs.isnotvalid;
else scope.isnotvalid=AppConfig.paths[scope.category] + 'w3c-widget.png';
if (attrs.istoobig) scope.istoobig= AppConfig.paths[scope.category] + attrs.istoobig;
else scope.istoobig=AppConfig.paths[scope.category] + 'istoobig.png';
scope.noslider = attrs.noslider || false;
if (!attrs.posturl) throw new TypeError('file-upload %s posturl=/api/xxxx/xxxx required', scope.attrs);
}
return {
restrict: 'E',
template: tmplAppli,
link: mymethods,
scope: {
callback : '='
}
};
});
console.log ("UploadFile Loaded");
})();