mirror of
https://github.com/element-hq/element-web.git
synced 2024-12-16 23:11:59 +03:00
120 lines
4 KiB
JavaScript
120 lines
4 KiB
JavaScript
/*
|
|
Copyright 2015, 2016 OpenMarket Ltd
|
|
|
|
Licensed under the Apache License, Version 2.0 (the "License");
|
|
you may not use this file except in compliance with the License.
|
|
You may obtain a copy of the License at
|
|
|
|
http://www.apache.org/licenses/LICENSE-2.0
|
|
|
|
Unless required by applicable law or agreed to in writing, software
|
|
distributed under the License is distributed on an "AS IS" BASIS,
|
|
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
See the License for the specific language governing permissions and
|
|
limitations under the License.
|
|
*/
|
|
|
|
'use strict';
|
|
|
|
var React = require('react');
|
|
var ReactDOM = require('react-dom');
|
|
var dis = require('../../../dispatcher');
|
|
import classNames from 'classnames';
|
|
|
|
const MIN_TOOLTIP_HEIGHT = 25;
|
|
|
|
module.exports = React.createClass({
|
|
displayName: 'RoomTooltip',
|
|
|
|
propTypes: {
|
|
// Class applied to the element used to position the tooltip
|
|
className: React.PropTypes.string.isRequired,
|
|
// Class applied to the tooltip itself
|
|
tooltipClassName: React.PropTypes.string,
|
|
// The tooltip is derived from either the room name or a label
|
|
room: React.PropTypes.object,
|
|
label: React.PropTypes.node,
|
|
},
|
|
|
|
// Create a wrapper for the tooltip outside the parent and attach it to the body element
|
|
componentDidMount: function() {
|
|
this.tooltipContainer = document.createElement("div");
|
|
this.tooltipContainer.className = "mx_RoomTileTooltip_wrapper";
|
|
document.body.appendChild(this.tooltipContainer);
|
|
window.addEventListener('scroll', this._renderTooltip, true);
|
|
|
|
this.parent = ReactDOM.findDOMNode(this).parentNode;
|
|
|
|
this._renderTooltip();
|
|
},
|
|
|
|
componentDidUpdate: function() {
|
|
this._renderTooltip();
|
|
},
|
|
|
|
// Remove the wrapper element, as the tooltip has finished using it
|
|
componentWillUnmount: function() {
|
|
dis.dispatch({
|
|
action: 'view_tooltip',
|
|
tooltip: null,
|
|
parent: null,
|
|
});
|
|
|
|
ReactDOM.unmountComponentAtNode(this.tooltipContainer);
|
|
document.body.removeChild(this.tooltipContainer);
|
|
window.removeEventListener('scroll', this._renderTooltip, true);
|
|
},
|
|
|
|
_updatePosition(style) {
|
|
const parentBox = this.parent.getBoundingClientRect();
|
|
let offset = 0;
|
|
if (parentBox.height > MIN_TOOLTIP_HEIGHT) {
|
|
offset = Math.floor((parentBox.height - MIN_TOOLTIP_HEIGHT) / 2);
|
|
}
|
|
style.top = (parentBox.top - 2) + window.pageYOffset + offset;
|
|
style.left = 6 + parentBox.right + window.pageXOffset;
|
|
return style;
|
|
},
|
|
|
|
_renderTooltip: function() {
|
|
var label = this.props.room ? this.props.room.name : this.props.label;
|
|
|
|
// Add the parent's position to the tooltips, so it's correctly
|
|
// positioned, also taking into account any window zoom
|
|
// NOTE: The additional 6 pixels for the left position, is to take account of the
|
|
// tooltips chevron
|
|
var parent = ReactDOM.findDOMNode(this).parentNode;
|
|
var style = {};
|
|
style = this._updatePosition(style);
|
|
style.display = "block";
|
|
|
|
const tooltipClasses = classNames(
|
|
"mx_RoomTooltip", this.props.tooltipClassName,
|
|
);
|
|
|
|
var tooltip = (
|
|
<div className={tooltipClasses} style={style} >
|
|
<div className="mx_RoomTooltip_chevron"></div>
|
|
{ label }
|
|
</div>
|
|
);
|
|
|
|
// Render the tooltip manually, as we wish it not to be rendered within the parent
|
|
this.tooltip = ReactDOM.render(tooltip, this.tooltipContainer);
|
|
|
|
// Tell the roomlist about us so it can manipulate us if it wishes
|
|
dis.dispatch({
|
|
action: 'view_tooltip',
|
|
tooltip: this.tooltip,
|
|
parent: parent,
|
|
});
|
|
},
|
|
|
|
render: function() {
|
|
// Render a placeholder
|
|
return (
|
|
<div className={this.props.className} >
|
|
</div>
|
|
);
|
|
},
|
|
});
|