255 lines
8.6 KiB
JavaScript
255 lines
8.6 KiB
JavaScript
/*
|
|
Copyright 2015, 2016 OpenMarket Ltd
|
|
Copyright 2018 New Vector 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.
|
|
*/
|
|
|
|
|
|
import React from 'react';
|
|
import ReactDOM from 'react-dom';
|
|
import PropTypes from 'prop-types';
|
|
import classNames from 'classnames';
|
|
|
|
// Shamelessly ripped off Modal.js. There's probably a better way
|
|
// of doing reusable widgets like dialog boxes & menus where we go and
|
|
// pass in a custom control as the actual body.
|
|
|
|
const ContextualMenuContainerId = "mx_ContextualMenu_Container";
|
|
|
|
function getOrCreateContainer() {
|
|
let container = document.getElementById(ContextualMenuContainerId);
|
|
|
|
if (!container) {
|
|
container = document.createElement("div");
|
|
container.id = ContextualMenuContainerId;
|
|
document.body.appendChild(container);
|
|
}
|
|
|
|
return container;
|
|
}
|
|
|
|
export default class ContextualMenu extends React.Component {
|
|
propTypes: {
|
|
top: PropTypes.number,
|
|
bottom: PropTypes.number,
|
|
left: PropTypes.number,
|
|
right: PropTypes.number,
|
|
menuWidth: PropTypes.number,
|
|
menuHeight: PropTypes.number,
|
|
chevronOffset: PropTypes.number,
|
|
menuColour: PropTypes.string,
|
|
chevronFace: PropTypes.string, // top, bottom, left, right or none
|
|
// Function to be called on menu close
|
|
onFinished: PropTypes.func,
|
|
menuPaddingTop: PropTypes.number,
|
|
menuPaddingRight: PropTypes.number,
|
|
menuPaddingBottom: PropTypes.number,
|
|
menuPaddingLeft: PropTypes.number,
|
|
|
|
// If true, insert an invisible screen-sized element behind the
|
|
// menu that when clicked will close it.
|
|
hasBackground: PropTypes.bool,
|
|
|
|
// The component to render as the context menu
|
|
elementClass: PropTypes.element.isRequired,
|
|
// on resize callback
|
|
windowResize: PropTypes.func,
|
|
// method to close menu
|
|
closeMenu: PropTypes.func,
|
|
};
|
|
|
|
constructor() {
|
|
super();
|
|
this.state = {
|
|
contextMenuRect: null,
|
|
};
|
|
|
|
this.onContextMenu = this.onContextMenu.bind(this);
|
|
this.collectContextMenuRect = this.collectContextMenuRect.bind(this);
|
|
}
|
|
|
|
collectContextMenuRect(element) {
|
|
// We don't need to clean up when unmounting, so ignore
|
|
if (!element) return;
|
|
|
|
this.setState({
|
|
contextMenuRect: element.getBoundingClientRect(),
|
|
});
|
|
}
|
|
|
|
onContextMenu(e) {
|
|
if (this.props.closeMenu) {
|
|
this.props.closeMenu();
|
|
|
|
e.preventDefault();
|
|
const x = e.clientX;
|
|
const y = e.clientY;
|
|
|
|
// XXX: This isn't pretty but the only way to allow opening a different context menu on right click whilst
|
|
// a context menu and its click-guard are up without completely rewriting how the context menus work.
|
|
setImmediate(() => {
|
|
const clickEvent = document.createEvent('MouseEvents');
|
|
clickEvent.initMouseEvent(
|
|
'contextmenu', true, true, window, 0,
|
|
0, 0, x, y, false, false,
|
|
false, false, 0, null,
|
|
);
|
|
document.elementFromPoint(x, y).dispatchEvent(clickEvent);
|
|
});
|
|
}
|
|
}
|
|
|
|
render() {
|
|
const position = {};
|
|
let chevronFace = null;
|
|
const props = this.props;
|
|
|
|
if (props.top) {
|
|
position.top = props.top;
|
|
} else {
|
|
position.bottom = props.bottom;
|
|
}
|
|
|
|
if (props.left) {
|
|
position.left = props.left;
|
|
chevronFace = 'left';
|
|
} else {
|
|
position.right = props.right;
|
|
chevronFace = 'right';
|
|
}
|
|
|
|
const contextMenuRect = this.state.contextMenuRect || null;
|
|
const padding = 10;
|
|
|
|
const chevronOffset = {};
|
|
if (props.chevronFace) {
|
|
chevronFace = props.chevronFace;
|
|
}
|
|
const hasChevron = chevronFace && chevronFace !== "none";
|
|
|
|
if (chevronFace === 'top' || chevronFace === 'bottom') {
|
|
chevronOffset.left = props.chevronOffset;
|
|
} else {
|
|
const target = position.top;
|
|
|
|
// By default, no adjustment is made
|
|
let adjusted = target;
|
|
|
|
// If we know the dimensions of the context menu, adjust its position
|
|
// such that it does not leave the (padded) window.
|
|
if (contextMenuRect) {
|
|
adjusted = Math.min(position.top, document.body.clientHeight - contextMenuRect.height - padding);
|
|
}
|
|
|
|
position.top = adjusted;
|
|
chevronOffset.top = Math.max(props.chevronOffset, props.chevronOffset + target - adjusted);
|
|
}
|
|
|
|
// To override the default chevron colour, if it's been set
|
|
let chevronCSS = "";
|
|
if (props.menuColour) {
|
|
chevronCSS = `
|
|
.mx_ContextualMenu_chevron_left:after {
|
|
border-right-color: ${props.menuColour};
|
|
}
|
|
.mx_ContextualMenu_chevron_right:after {
|
|
border-left-color: ${props.menuColour};
|
|
}
|
|
.mx_ContextualMenu_chevron_top:after {
|
|
border-left-color: ${props.menuColour};
|
|
}
|
|
.mx_ContextualMenu_chevron_bottom:after {
|
|
border-left-color: ${props.menuColour};
|
|
}
|
|
`;
|
|
}
|
|
|
|
const chevron = hasChevron ?
|
|
<div style={chevronOffset} className={"mx_ContextualMenu_chevron_" + chevronFace} /> :
|
|
undefined;
|
|
const className = 'mx_ContextualMenu_wrapper';
|
|
|
|
const menuClasses = classNames({
|
|
'mx_ContextualMenu': true,
|
|
'mx_ContextualMenu_noChevron': chevronFace === 'none',
|
|
'mx_ContextualMenu_left': chevronFace === 'left',
|
|
'mx_ContextualMenu_right': chevronFace === 'right',
|
|
'mx_ContextualMenu_top': chevronFace === 'top',
|
|
'mx_ContextualMenu_bottom': chevronFace === 'bottom',
|
|
});
|
|
|
|
const menuStyle = {};
|
|
if (props.menuWidth) {
|
|
menuStyle.width = props.menuWidth;
|
|
}
|
|
|
|
if (props.menuHeight) {
|
|
menuStyle.height = props.menuHeight;
|
|
}
|
|
|
|
if (props.menuColour) {
|
|
menuStyle["backgroundColor"] = props.menuColour;
|
|
}
|
|
|
|
if (!isNaN(Number(props.menuPaddingTop))) {
|
|
menuStyle["paddingTop"] = props.menuPaddingTop;
|
|
}
|
|
if (!isNaN(Number(props.menuPaddingLeft))) {
|
|
menuStyle["paddingLeft"] = props.menuPaddingLeft;
|
|
}
|
|
if (!isNaN(Number(props.menuPaddingBottom))) {
|
|
menuStyle["paddingBottom"] = props.menuPaddingBottom;
|
|
}
|
|
if (!isNaN(Number(props.menuPaddingRight))) {
|
|
menuStyle["paddingRight"] = props.menuPaddingRight;
|
|
}
|
|
|
|
const ElementClass = props.elementClass;
|
|
|
|
// FIXME: If a menu uses getDefaultProps it clobbers the onFinished
|
|
// property set here so you can't close the menu from a button click!
|
|
return <div className={className} style={position}>
|
|
<div className={menuClasses} style={menuStyle} ref={this.collectContextMenuRect}>
|
|
{ chevron }
|
|
<ElementClass {...props} onFinished={props.closeMenu} onResize={props.windowResize} />
|
|
</div>
|
|
{ props.hasBackground && <div className="mx_ContextualMenu_background"
|
|
onClick={props.closeMenu} onContextMenu={this.onContextMenu} /> }
|
|
<style>{ chevronCSS }</style>
|
|
</div>;
|
|
}
|
|
}
|
|
|
|
export function createMenu(ElementClass, props, hasBackground=true) {
|
|
const closeMenu = function(...args) {
|
|
ReactDOM.unmountComponentAtNode(getOrCreateContainer());
|
|
|
|
if (props && props.onFinished) {
|
|
props.onFinished.apply(null, args);
|
|
}
|
|
};
|
|
|
|
// We only reference closeMenu once per call to createMenu
|
|
const menu = <ContextualMenu
|
|
hasBackground={hasBackground}
|
|
{...props}
|
|
elementClass={ElementClass}
|
|
closeMenu={closeMenu} // eslint-disable-line react/jsx-no-bind
|
|
windowResize={closeMenu} // eslint-disable-line react/jsx-no-bind
|
|
/>;
|
|
|
|
ReactDOM.render(menu, getOrCreateContainer());
|
|
|
|
return {close: closeMenu};
|
|
}
|