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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 utils = require('../utils/utils.jsx');
module.exports = React.createClass({
displayName: 'ViewImageModal',
propTypes: {
filenames: React.PropTypes.array,
modalId: React.PropTypes.string,
channelId: React.PropTypes.string,
userId: React.PropTypes.string,
startId: React.PropTypes.number
},
canSetState: false,
handleNext: function() {
var id = this.state.imgId + 1;
if (id > this.props.filenames.length - 1) {
id = 0;
}
this.setState({imgId: id});
this.loadImage(id);
},
handlePrev: function() {
var id = this.state.imgId - 1;
if (id < 0) {
id = this.props.filenames.length - 1;
}
this.setState({imgId: id});
this.loadImage(id);
},
handleKeyPress: function handleKeyPress(e) {
if (!e) {
return;
} else if (e.keyCode === 39) {
this.handleNext();
} else if (e.keyCode === 37) {
this.handlePrev();
}
},
componentWillReceiveProps: function(nextProps) {
this.setState({imgId: nextProps.startId});
},
loadImage: function(id) {
var imgHeight = $(window).height() - 100;
if (this.state.loaded[id] || this.state.images[id]) {
$('.modal .modal-image .image-wrapper img').css('max-height', imgHeight);
return;
}
var filename = this.props.filenames[id];
var fileInfo = utils.splitFileLocation(filename);
var fileType = utils.getFileType(fileInfo.ext);
if (fileType === 'image') {
var self = this;
var img = new Image();
img.load(this.getPreviewImagePath(filename),
function() {
var progress = self.state.progress;
progress[id] = img.completedPercentage;
self.setState({progress: progress});
});
img.onload = function onload(imgid) {
return function onloadReturn() {
var loaded = self.state.loaded;
loaded[imgid] = true;
self.setState({loaded: loaded});
$(self.refs.image.getDOMNode()).css('max-height', imgHeight);
};
}(id);
var images = this.state.images;
images[id] = img;
this.setState({images: images});
} else {
// there's nothing to load for non-image files
var loaded = this.state.loaded;
loaded[id] = true;
this.setState({loaded: loaded});
}
},
componentDidUpdate: function() {
if (this.state.loaded[this.state.imgId]) {
if (this.refs.imageWrap) {
$(this.refs.imageWrap.getDOMNode()).removeClass('default');
}
}
},
componentDidMount: function() {
var self = this;
$('#' + this.props.modalId).on('shown.bs.modal', function onModalShow() {
self.setState({viewed: true});
self.loadImage(self.state.imgId);
});
$(this.refs.modal.getDOMNode()).click(function onModalClick(e) {
if (e.target === this || e.target === self.refs.imageBody.getDOMNode()) {
$('.image_modal').modal('hide');
}
});
$(this.refs.imageWrap.getDOMNode()).hover(
function onModalHover() {
$(self.refs.imageFooter.getDOMNode()).addClass('footer--show');
}, function offModalHover() {
$(self.refs.imageFooter.getDOMNode()).removeClass('footer--show');
}
);
$(window).on('keyup', this.handleKeyPress);
// keep track of whether or not this component is mounted so we can safely set the state asynchronously
this.canSetState = true;
},
componentWillUnmount: function() {
this.canSetState = false;
$(window).off('keyup', this.handleKeyPress);
},
getPublicLink: function() {
var data = {};
data.channel_id = this.props.channelId;
data.user_id = this.props.userId;
data.filename = this.props.filenames[this.state.imgId];
Client.getPublicLink(data,
function sucess(serverData) {
if (utils.isMobile()) {
window.location.href = serverData.public_link;
} else {
window.open(serverData.public_link);
}
},
function error() {
}
);
},
getPreviewImagePath: function(filename) {
// Returns the path to a preview image that can be used to represent a file.
var fileInfo = utils.splitFileLocation(filename);
var fileType = utils.getFileType(fileInfo.ext);
if (fileType === 'image') {
// This is a temporary patch to fix issue with old files using absolute paths
if (fileInfo.path.indexOf('/api/v1/files/get') !== -1) {
fileInfo.path = fileInfo.path.split('/api/v1/files/get')[1];
}
fileInfo.path = utils.getWindowLocationOrigin() + '/api/v1/files/get' + fileInfo.path;
return fileInfo.path + '_preview.jpg';
}
// only images have proper previews, so just use a placeholder icon for non-images
return utils.getPreviewImagePathForFileType(fileType);
},
getInitialState: function() {
var loaded = [];
var progress = [];
for (var i = 0; i < this.props.filenames.length; i++) {
loaded.push(false);
progress.push(0);
}
return {imgId: this.props.startId, viewed: false, loaded: loaded, progress: progress, images: {}, fileSizes: {}};
},
render: function() {
if (this.props.filenames.length < 1 || this.props.filenames.length - 1 < this.state.imgId) {
return <div/>;
}
var filename = this.props.filenames[this.state.imgId];
var fileUrl = utils.getFileUrl(filename);
var name = decodeURIComponent(utils.getFileName(filename));
var content;
var bgClass = '';
if (this.state.loaded[this.state.imgId]) {
var fileInfo = utils.splitFileLocation(filename);
var fileType = utils.getFileType(fileInfo.ext);
if (fileType === 'image') {
// image files just show a preview of the file
content = (
<a href={fileUrl} target='_blank'>
<img ref='image' src={this.getPreviewImagePath(filename)}/>
</a>
);
} else {
// non-image files include a section providing details about the file
var infoString = 'File type ' + fileInfo.ext.toUpperCase();
if (this.state.fileSizes[filename] && this.state.fileSizes[filename] >= 0) {
infoString += ', Size ' + utils.fileSizeToString(this.state.fileSizes[filename]);
}
content = (
<div className='file-details__container'>
<a className={'file-details__preview'} href={fileUrl} target='_blank'>
<span className='file-details__preview-helper' />
<img ref='image' src={this.getPreviewImagePath(filename)} />
</a>
<div className='file-details'>
<div className='file-details__name'>{name}</div>
<div className='file-details__info'>{infoString}</div>
</div>
</div>
);
// asynchronously request the actual size of this file
if (!(filename in this.state.fileSizes)) {
var self = this;
utils.getFileSize(utils.getFileUrl(filename), function fileSizeOp(fileSize) {
if (self.canSetState) {
var fileSizes = self.state.fileSizes;
fileSizes[filename] = fileSize;
self.setState(fileSizes);
}
});
}
}
} else {
// display a progress indicator when the preview for an image is still loading
var percentage = Math.floor(this.state.progress[this.state.imgId]);
if (percentage) {
content = (
<div>
<img className='loader-image' src='/static/images/load.gif' />
<span className='loader-percent' >{'Previewing ' + percentage + '%'}</span>
</div>
);
} else {
content = (
<div>
<img className='loader-image' src='/static/images/load.gif' />
</div>
);
}
bgClass = 'black-bg';
}
var publicLink = '';
if (config.AllowPublicLink) {
publicLink = (
<div>
<a href='#' className='public-link text' data-title='Public Image' onClick={this.getPublicLink}>Get Public Link</a>
<span className='text'> | </span>
</div>
);
}
var leftArrow = '';
var rightArrow = '';
if (this.props.filenames.length > 1) {
leftArrow = (
<a className='modal-prev-bar' href='#' onClick={this.handlePrev}>
<i className='image-control image-prev'/>
</a>
);
rightArrow = (
<a className='modal-next-bar' href='#' onClick={this.handleNext}>
<i className='image-control image-next'/>
</a>
);
}
return (
<div className='modal fade image_modal' ref='modal' id={this.props.modalId} tabIndex='-1' role='dialog' aria-hidden='true'>
<div className='modal-dialog modal-image'>
<div className='modal-content image-content'>
<div ref='imageBody' className='modal-body image-body'>
<div ref='imageWrap' className={'image-wrapper default ' + bgClass}>
<div className='modal-close' data-dismiss='modal'></div>
{content}
<div ref='imageFooter' className='modal-button-bar'>
<span className='pull-left text'>{'Image ' + (this.state.imgId + 1) + ' of ' + this.props.filenames.length}</span>
<div className='image-links'>
{publicLink}
<a href={fileUrl} download={name} className='text'>Download</a>
</div>
</div>
</div>
{leftArrow}
{rightArrow}
</div>
</div>
</div>
</div>
);
}
});
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