FileDrop.js
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Ext.define('treps.controller.Drop.FileDrop', {
extend: 'Ext.app.Controller',
views: [
'Steps.SourceSelection.FileDropZone'
],
refs: [
{
ref: 'dropZone',
selector: 'filedropzone'
}
],
init: function() {
var me = this;
this.control({
'filedropzone': {
afterrender: me.onInitDropZone,
scope: me
}
});
},
onInitDropZone: function() {
var me = this;
var dropZone = this.getDropZone();
var documentDropTargetEl = dropZone.getEl().dom;
if (typeof(File) === 'undefined' || typeof(FileReader) === 'undefined')
{
dropZone.update("Drag & Drop Feature not supported by your browser");
return;
}
documentDropTargetEl.addEventListener('dragenter', function (evt) {
dropZone.getEl().highlight();
evt.stopPropagation();
evt.preventDefault();
}, false);
documentDropTargetEl.addEventListener('dragover', function (evt) {
evt.stopPropagation();
evt.preventDefault();
}, false);
documentDropTargetEl.addEventListener('drop', function (evt) {
var files = evt.target.files || evt.dataTransfer.files;
evt.stopPropagation();
evt.preventDefault();
if (!files || files.length == 0)
{
treps.Messages.showError("Error to retrieve the dragged file.");
return false;
}
if (files.length > 1)
{
treps.Messages.showError("Please select only one file.");
return false;
}
var file = files[0];
if (file.size > treps.Constants.DROP_MAX_FILESIZE)
{
treps.Messages.showError("File too large (limitation to "+treps.Constants.DROP_MAX_FILESIZE+" octets)");
return false;
}
var reader = new FileReader();
reader.onload = function (event) {
me.application.fireEvent('receivesource','data', event.target.result);
};
try
{
reader.readAsDataURL(file);
}
catch (err)
{
treps.Messages.showError(err.message);
}
}, false);
}
});