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// Copyright (c) 2015 Spinpunch, Inc. All Rights Reserved.
// See License.txt for license information.
var client = require('../utils/client.jsx');
var Constants = require('../utils/constants.jsx');
var ChannelStore = require('../stores/channel_store.jsx');
var utils = require('../utils/utils.jsx');
module.exports = React.createClass({
displayName: 'FileUpload',
propTypes: {
onUploadError: React.PropTypes.func,
getFileCount: React.PropTypes.func,
onFileUpload: React.PropTypes.func,
onUploadStart: React.PropTypes.func
},
getInitialState: function() {
return {requests: {}};
},
handleChange: function() {
var element = $(this.refs.fileInput.getDOMNode());
var files = element.prop('files');
var channelId = ChannelStore.getCurrentId();
this.props.onUploadError(null);
// This looks redundant, but must be done this way due to
// setState being an asynchronous call
var numFiles = 0;
for (var i = 0; i < files.length; i++) {
if (files[i].size <= Constants.MAX_FILE_SIZE) {
numFiles++;
}
}
var numToUpload = Math.min(Constants.MAX_UPLOAD_FILES - this.props.getFileCount(channelId), numFiles);
if (numFiles > numToUpload) {
this.props.onUploadError('Uploads limited to ' + Constants.MAX_UPLOAD_FILES + ' files maximum. Please use additional posts for more files.');
}
for (var i = 0; i < files.length && i < numToUpload; i++) {
if (files[i].size > Constants.MAX_FILE_SIZE) {
this.props.onUploadError('Files must be no more than ' + Constants.MAX_FILE_SIZE / 1000000 + ' MB');
continue;
}
// generate a unique id that can be used by other components to refer back to this file upload
var clientId = utils.generateId();
// Prepare data to be uploaded.
var formData = new FormData();
formData.append('channel_id', channelId);
formData.append('files', files[i], files[i].name);
formData.append('client_ids', clientId);
var request = client.uploadFile(formData,
function(data) {
var parsedData = $.parseJSON(data);
this.props.onFileUpload(parsedData.filenames, parsedData.client_ids, channelId);
var requests = this.state.requests;
for (var i = 0; i < parsedData.client_ids.length; i++) {
delete requests[parsedData.client_ids[i]];
}
this.setState({requests: requests});
}.bind(this),
function(err) {
this.props.onUploadError(err, clientId);
}.bind(this)
);
var requests = this.state.requests;
requests[clientId] = request;
this.setState({requests: requests});
this.props.onUploadStart([clientId], channelId);
}
// clear file input for all modern browsers
try {
element[0].value = '';
if (element.value) {
element[0].type = 'text';
element[0].type = 'file';
}
} catch(e) {}
},
componentDidMount: function() {
var inputDiv = this.refs.input.getDOMNode();
var self = this;
document.addEventListener('paste', function(e) {
var textarea = $(inputDiv.parentNode.parentNode).find('.custom-textarea')[0];
if (textarea !== e.target && !$.contains(textarea, e.target)) {
return;
}
self.props.onUploadError(null);
// This looks redundant, but must be done this way due to
// setState being an asynchronous call
var items = e.clipboardData.items;
var numItems = 0;
if (items) {
for (var i = 0; i < items.length; i++) {
if (items[i].type.indexOf('image') !== -1) {
var testExt = items[i].type.split('/')[1].toLowerCase();
if (Constants.IMAGE_TYPES.indexOf(testExt) < 0) {
continue;
}
numItems++;
}
}
var numToUpload = Math.min(Constants.MAX_UPLOAD_FILES - self.props.getFileCount(ChannelStore.getCurrentId()), numItems);
if (numItems > numToUpload) {
self.props.onUploadError('Uploads limited to ' + Constants.MAX_UPLOAD_FILES + ' files maximum. Please use additional posts for more files.');
}
for (var i = 0; i < items.length && i < numToUpload; i++) {
if (items[i].type.indexOf('image') !== -1) {
var file = items[i].getAsFile();
var ext = items[i].type.split('/')[1].toLowerCase();
if (Constants.IMAGE_TYPES.indexOf(ext) < 0) {
continue;
}
var channelId = ChannelStore.getCurrentId();
// generate a unique id that can be used by other components to refer back to this file upload
var clientId = utils.generateId();
var formData = new FormData();
formData.append('channel_id', channelId);
var d = new Date();
var hour;
if (d.getHours() < 10) {
hour = '0' + d.getHours();
} else {
hour = String(d.getHours());
}
var min;
if (d.getMinutes() < 10) {
min = '0' + d.getMinutes();
} else {
min = String(d.getMinutes());
}
var name = 'Image Pasted at ' + d.getFullYear() + '-' + d.getMonth() + '-' + d.getDate() + ' ' + hour + '-' + min + '.' + ext;
formData.append('files', file, name);
formData.append('client_ids', clientId);
var request = client.uploadFile(formData,
function(data) {
var parsedData = $.parseJSON(data);
self.props.onFileUpload(parsedData.filenames, parsedData.client_ids, channelId);
var requests = self.state.requests;
for (var i = 0; i < parsedData.client_ids.length; i++) {
delete requests[parsedData.client_ids[i]];
}
self.setState({requests: requests});
},
function(err) {
self.props.onUploadError(err, clientId);
}
);
var requests = self.state.requests;
requests[clientId] = request;
self.setState({requests: requests});
self.props.onUploadStart([clientId], channelId);
}
}
}
});
},
cancelUpload: function(clientId) {
var requests = this.state.requests;
var request = requests[clientId];
if (request) {
request.abort();
delete requests[clientId];
this.setState({requests: requests});
}
},
render: function() {
return (
<span ref='input' className='btn btn-file'>
<span>
<i className='glyphicon glyphicon-paperclip' />
</span>
<input ref='fileInput' type='file' onChange={this.handleChange} multiple/>
</span>
);
}
});
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