mastodon/app/assets/javascripts/components/components/autosuggest_textarea.jsx
Stephen Burgess cca41ea544 Replace inline styles with CSS classes (BEM) (#2338)
* fix(classnames): Status icon style classnames

Take out inline css and put into classnames for the following components: account, avatar, icon button, status action bar, notification.

* fix(status): Move styles from inline to classes for statuses

Move styles to classnames in components.scss for the following components:

display name
media gallery
status
status content
video player

* fix(classnames): Add classnames to rest of components

Take out inline styles and apply them to classnames in the sass for the following components:

button
column back button
slim column back button
collapsable column
dropdown menu
loading indicator
status list

* fix(classnames): Remove all non-dynamic inline styles

Components affected:

autosuggested
permalink
action bar
header
character counter
compose form
emoji dropdown
privacy dropdown
reply indicator
upload form
account auth
followers
getting started
column settings
mutes
settings
reblogs
status checkbox
report
action bar
status
card
boost modal
media modal
video modal

* fix(permalink): Do not lose classname

* fix(tests): Add space back in display name

* fix(status__wrapper): Remove duplicate css name

Remove incorrect style attribute. Remove style attribute all together. Cursor defaults to "auto" when not specified as 'default'.

* fix(nl): do not lose translations
2017-04-23 04:26:55 +02:00

209 lines
5.9 KiB
JavaScript

import AutosuggestAccountContainer from '../features/compose/containers/autosuggest_account_container';
import ImmutablePropTypes from 'react-immutable-proptypes';
import PropTypes from 'prop-types';
import { isRtl } from '../rtl';
const textAtCursorMatchesToken = (str, caretPosition) => {
let word;
let left = str.slice(0, caretPosition).search(/\S+$/);
let right = str.slice(caretPosition).search(/\s/);
if (right < 0) {
word = str.slice(left);
} else {
word = str.slice(left, right + caretPosition);
}
if (!word || word.trim().length < 2 || word[0] !== '@') {
return [null, null];
}
word = word.trim().toLowerCase().slice(1);
if (word.length > 0) {
return [left + 1, word];
} else {
return [null, null];
}
};
class AutosuggestTextarea extends React.Component {
constructor (props, context) {
super(props, context);
this.state = {
suggestionsHidden: false,
selectedSuggestion: 0,
lastToken: null,
tokenStart: 0
};
this.onChange = this.onChange.bind(this);
this.onKeyDown = this.onKeyDown.bind(this);
this.onBlur = this.onBlur.bind(this);
this.onSuggestionClick = this.onSuggestionClick.bind(this);
this.setTextarea = this.setTextarea.bind(this);
this.onPaste = this.onPaste.bind(this);
}
onChange (e) {
const [ tokenStart, token ] = textAtCursorMatchesToken(e.target.value, e.target.selectionStart);
if (token !== null && this.state.lastToken !== token) {
this.setState({ lastToken: token, selectedSuggestion: 0, tokenStart });
this.props.onSuggestionsFetchRequested(token);
} else if (token === null) {
this.setState({ lastToken: null });
this.props.onSuggestionsClearRequested();
}
// auto-resize textarea
e.target.style.height = 'auto';
e.target.style.height = `${e.target.scrollHeight}px`;
this.props.onChange(e);
}
onKeyDown (e) {
const { suggestions, disabled } = this.props;
const { selectedSuggestion, suggestionsHidden } = this.state;
if (disabled) {
e.preventDefault();
return;
}
switch(e.key) {
case 'Escape':
if (!suggestionsHidden) {
e.preventDefault();
this.setState({ suggestionsHidden: true });
}
break;
case 'ArrowDown':
if (suggestions.size > 0 && !suggestionsHidden) {
e.preventDefault();
this.setState({ selectedSuggestion: Math.min(selectedSuggestion + 1, suggestions.size - 1) });
}
break;
case 'ArrowUp':
if (suggestions.size > 0 && !suggestionsHidden) {
e.preventDefault();
this.setState({ selectedSuggestion: Math.max(selectedSuggestion - 1, 0) });
}
break;
case 'Enter':
case 'Tab':
// Select suggestion
if (this.state.lastToken !== null && suggestions.size > 0 && !suggestionsHidden) {
e.preventDefault();
e.stopPropagation();
this.props.onSuggestionSelected(this.state.tokenStart, this.state.lastToken, suggestions.get(selectedSuggestion));
}
break;
}
if (e.defaultPrevented || !this.props.onKeyDown) {
return;
}
this.props.onKeyDown(e);
}
onBlur () {
// If we hide the suggestions immediately, then this will prevent the
// onClick for the suggestions themselves from firing.
// Setting a short window for that to take place before hiding the
// suggestions ensures that can't happen.
setTimeout(() => {
this.setState({ suggestionsHidden: true });
}, 100);
}
onSuggestionClick (suggestion, e) {
e.preventDefault();
this.props.onSuggestionSelected(this.state.tokenStart, this.state.lastToken, suggestion);
this.textarea.focus();
}
componentWillReceiveProps (nextProps) {
if (nextProps.suggestions !== this.props.suggestions && nextProps.suggestions.size > 0 && this.state.suggestionsHidden) {
this.setState({ suggestionsHidden: false });
}
}
setTextarea (c) {
this.textarea = c;
}
onPaste (e) {
if (e.clipboardData && e.clipboardData.files.length === 1) {
this.props.onPaste(e.clipboardData.files)
e.preventDefault();
}
}
render () {
const { value, suggestions, disabled, placeholder, onKeyUp } = this.props;
const { suggestionsHidden, selectedSuggestion } = this.state;
const style = { direction: 'ltr' };
if (isRtl(value)) {
style.direction = 'rtl';
}
return (
<div className='autosuggest-textarea'>
<textarea
ref={this.setTextarea}
className='autosuggest-textarea__textarea'
disabled={disabled}
placeholder={placeholder}
autoFocus={true}
value={value}
onChange={this.onChange}
onKeyDown={this.onKeyDown}
onKeyUp={onKeyUp}
onBlur={this.onBlur}
onPaste={this.onPaste}
style={style}
/>
<div style={{ display: (suggestions.size > 0 && !suggestionsHidden) ? 'block' : 'none' }} className='autosuggest-textarea__suggestions'>
{suggestions.map((suggestion, i) => (
<div
role='button'
tabIndex='0'
key={suggestion}
className={`autosuggest-textarea__suggestions__item ${i === selectedSuggestion ? 'selected' : ''}`}
onClick={this.onSuggestionClick.bind(this, suggestion)}>
<AutosuggestAccountContainer id={suggestion} />
</div>
))}
</div>
</div>
);
}
};
AutosuggestTextarea.propTypes = {
value: PropTypes.string,
suggestions: ImmutablePropTypes.list,
disabled: PropTypes.bool,
placeholder: PropTypes.string,
onSuggestionSelected: PropTypes.func.isRequired,
onSuggestionsClearRequested: PropTypes.func.isRequired,
onSuggestionsFetchRequested: PropTypes.func.isRequired,
onChange: PropTypes.func.isRequired,
onKeyUp: PropTypes.func,
onKeyDown: PropTypes.func,
onPaste: PropTypes.func.isRequired,
};
export default AutosuggestTextarea;