spee.ch/react/containers/PublishThumbnailInput/view.jsx

83 lines
2.6 KiB
JavaScript

import React from 'react';
class PublishThumbnailInput extends React.Component {
constructor (props) {
super(props);
this.state = {
videoPreviewSrc: null,
thumbnailError : null,
thumbnailInput : '',
}
this.handleInput = this.handleInput.bind(this);
this.urlIsAnImage = this.urlIsAnImage.bind(this);
this.testImage = this.testImage.bind(this);
this.updateVideoThumb = this.updateVideoThumb.bind(this);
}
handleInput (event) {
const value = event.target.value;
this.setState({thumbnailInput: value});
}
urlIsAnImage (url) {
return (url.match(/\.(jpeg|jpg|gif|png)$/) != null);
}
testImage (url) {
return new Promise((resolve, reject) => {
const xhttp = new XMLHttpRequest();
xhttp.open('HEAD', url, true);
xhttp.onreadystatechange = () => {
if (xhttp.readyState === 4) {
if (xhttp.status === 200) {
resolve();
} else {
reject();
}
}
};
xhttp.send();
});
}
updateVideoThumb (event) {
const imageUrl = event.target.value;
const that = this;
if (this.urlIsAnImage(imageUrl)) {
this.testImage(imageUrl, 3000)
.then(() => {
console.log('thumbnail is a valid image');
that.props.onThumbnailChange('thumbnail', imageUrl);
that.setState({thumbnailError: null});
})
.catch(error => {
console.log('encountered an error loading thumbnail image url:', error);
that.props.onThumbnailChange('thumbnail', null);
that.setState({thumbnailError: 'That is an invalid image url'});
});
} else {
that.props.onThumbnailChange('thumbnail', null);
that.setState({thumbnailError: null});
}
}
render () {
return (
<div>
<div className="column column--3 column--sml-10">
<label className="label">Thumbnail:</label>
</div><div className="column column--6 column--sml-10">
<div className="input-text--primary">
<p className="info-message-placeholder info-message--failure">{this.state.thumbnailError}</p>
<input
type="text" id="claim-thumbnail-input"
className="input-text input-text--full-width"
placeholder="https://spee.ch/xyz/example.jpg"
value={this.state.thumbnailInput}
onChange={ (event) => {
this.handleInput(event);
this.updateVideoThumb(event);
}} />
</div>
</div>
</div>
);
}
}
export default PublishThumbnailInput;