@elastic/eui
Version:
Elastic UI Component Library
231 lines (226 loc) • 10.2 kB
JavaScript
import _extends from "@babel/runtime/helpers/extends";
import _defineProperty from "@babel/runtime/helpers/defineProperty";
import _slicedToArray from "@babel/runtime/helpers/slicedToArray";
import _objectWithoutProperties from "@babel/runtime/helpers/objectWithoutProperties";
var _excluded = ["direction", "children", "className", "onPanelWidthChange", "onToggleCollapsed", "onResizeStart", "onResizeEnd"];
function ownKeys(e, r) { var t = Object.keys(e); if (Object.getOwnPropertySymbols) { var o = Object.getOwnPropertySymbols(e); r && (o = o.filter(function (r) { return Object.getOwnPropertyDescriptor(e, r).enumerable; })), t.push.apply(t, o); } return t; }
function _objectSpread(e) { for (var r = 1; r < arguments.length; r++) { var t = null != arguments[r] ? arguments[r] : {}; r % 2 ? ownKeys(Object(t), !0).forEach(function (r) { _defineProperty(e, r, t[r]); }) : Object.getOwnPropertyDescriptors ? Object.defineProperties(e, Object.getOwnPropertyDescriptors(t)) : ownKeys(Object(t)).forEach(function (r) { Object.defineProperty(e, r, Object.getOwnPropertyDescriptor(t, r)); }); } return e; }
/*
* Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
* or more contributor license agreements. Licensed under the Elastic License
* 2.0 and the Server Side Public License, v 1; you may not use this file except
* in compliance with, at your election, the Elastic License 2.0 or the Server
* Side Public License, v 1.
*/
import React, { useEffect, useRef, useCallback } from 'react';
import classNames from 'classnames';
import { keys, useLatest } from '../../services';
import { useResizeObserver } from '../observer/resize_observer';
import { EuiResizableContainerContextProvider } from './context';
import { euiResizableButtonWithControls } from './resizable_button';
import { euiResizablePanelWithControls, getModeType } from './resizable_panel';
import { useContainerCallbacks, getPosition } from './helpers';
import { euiResizableContainerStyles as styles } from './resizable_container.styles';
import { jsx as ___EmotionJSX } from "@emotion/react";
var initialState = {
isDragging: false,
currentResizerPos: -1,
prevPanelId: null,
nextPanelId: null,
containerSize: 1,
panels: {},
resizers: {}
};
export var EuiResizableContainer = function EuiResizableContainer(_ref) {
var _ref$direction = _ref.direction,
direction = _ref$direction === void 0 ? 'horizontal' : _ref$direction,
children = _ref.children,
className = _ref.className,
onPanelWidthChange = _ref.onPanelWidthChange,
onToggleCollapsed = _ref.onToggleCollapsed,
onResizeStart = _ref.onResizeStart,
onResizeEnd = _ref.onResizeEnd,
rest = _objectWithoutProperties(_ref, _excluded);
// Note: It's important to memoize consumer callbacks to prevent our own functions
// from reinstantiating unnecessarily & causing window event listeners to call stale closures
var onResizeEndRef = useLatest(onResizeEnd);
var onResizeStartRef = useLatest(onResizeStart);
var containerRef = useRef(null);
var isHorizontal = direction === 'horizontal';
var classes = classNames('euiResizableContainer', className);
var cssStyles = [styles.euiResizableContainer, styles[direction]];
var _useContainerCallback = useContainerCallbacks({
initialState: _objectSpread(_objectSpread({}, initialState), {}, {
isHorizontal: isHorizontal
}),
containerRef: containerRef,
onPanelWidthChange: onPanelWidthChange
}),
_useContainerCallback2 = _slicedToArray(_useContainerCallback, 2),
actions = _useContainerCallback2[0],
reducerState = _useContainerCallback2[1];
var containerSize = useResizeObserver(containerRef.current, isHorizontal ? 'width' : 'height');
var initialize = useCallback(function () {
actions.initContainer(isHorizontal);
}, [actions, isHorizontal]);
useEffect(function () {
if (containerSize.width > 0 && containerSize.height > 0) {
initialize();
}
}, [initialize, containerSize]);
var resizeContext = useRef({});
var resizeEnd = useCallback(function () {
var _onResizeEndRef$curre;
(_onResizeEndRef$curre = onResizeEndRef.current) === null || _onResizeEndRef$curre === void 0 || _onResizeEndRef$curre.call(onResizeEndRef);
resizeContext.current = {};
}, [onResizeEndRef]);
var resizeStart = useCallback(function (trigger, keyMoveDirection) {
var _onResizeStartRef$cur;
// If another resize starts while the previous one is still in progress
// (e.g. user presses opposite arrow to change direction while the first
// is still held down, or user presses an arrow while dragging with the
// mouse), we want to signal the end of the previous resize first.
if (resizeContext.current.trigger) {
resizeEnd();
}
(_onResizeStartRef$cur = onResizeStartRef.current) === null || _onResizeStartRef$cur === void 0 || _onResizeStartRef$cur.call(onResizeStartRef, trigger);
resizeContext.current = {
trigger: trigger,
keyMoveDirection: keyMoveDirection
};
}, [onResizeStartRef, resizeEnd]);
var onMouseDown = useCallback(function (event) {
var currentTarget = event.currentTarget;
var prevPanel = currentTarget.previousElementSibling;
var nextPanel = currentTarget.nextElementSibling;
if (!prevPanel || !nextPanel) return;
var prevPanelId = prevPanel.id;
var nextPanelId = nextPanel.id;
var position = getPosition(event, isHorizontal);
resizeStart('pointer');
actions.dragStart({
position: position,
prevPanelId: prevPanelId,
nextPanelId: nextPanelId
});
// Window event listeners instead of React events are used to continue
// detecting movement even if the user's mouse leaves the container
var onMouseMove = function onMouseMove(event) {
var position = getPosition(event, isHorizontal);
actions.dragMove({
position: position,
prevPanelId: prevPanelId,
nextPanelId: nextPanelId
});
};
var onMouseUp = function onMouseUp() {
if (resizeContext.current.trigger === 'pointer') {
resizeEnd();
}
actions.reset();
window.removeEventListener('mousemove', onMouseMove);
window.removeEventListener('mouseup', onMouseUp);
window.removeEventListener('touchmove', onMouseMove);
window.removeEventListener('touchend', onMouseUp);
};
window.addEventListener('mousemove', onMouseMove);
window.addEventListener('mouseup', onMouseUp);
window.addEventListener('touchmove', onMouseMove);
window.addEventListener('touchend', onMouseUp);
}, [actions, isHorizontal, resizeStart, resizeEnd]);
var getKeyMoveDirection = useCallback(function (key) {
var direction = null;
if (isHorizontal && key === keys.ARROW_LEFT || !isHorizontal && key === keys.ARROW_UP) {
direction = 'backward';
} else if (isHorizontal && key === keys.ARROW_RIGHT || !isHorizontal && key === keys.ARROW_DOWN) {
direction = 'forward';
}
return direction;
}, [isHorizontal]);
var onKeyDown = useCallback(function (event) {
var key = event.key,
currentTarget = event.currentTarget;
var direction = getKeyMoveDirection(key);
var prevPanelId = currentTarget.previousElementSibling.id;
var nextPanelId = currentTarget.nextElementSibling.id;
if (direction && prevPanelId && nextPanelId) {
if (!event.repeat) {
resizeStart('key', direction);
}
event.preventDefault();
actions.keyMove({
direction: direction,
prevPanelId: prevPanelId,
nextPanelId: nextPanelId
});
}
}, [actions, getKeyMoveDirection, resizeStart]);
var onKeyUp = useCallback(function (_ref2) {
var key = _ref2.key;
// We only want to signal the end of a resize if the key that was released
// is the same as the one that started the resize. This prevents the end
// of a resize if the user presses one arrow key, then presses the opposite
// arrow key to change direction, then releases the first arrow key.
if (resizeContext.current.trigger === 'key' && resizeContext.current.keyMoveDirection === getKeyMoveDirection(key)) {
resizeEnd();
}
}, [getKeyMoveDirection, resizeEnd]);
var onBlur = useCallback(function () {
if (resizeContext.current.trigger === 'key') {
resizeEnd();
}
actions.resizerBlur();
}, [actions, resizeEnd]);
// eslint-disable-next-line react-hooks/exhaustive-deps
var EuiResizableButton = useCallback(euiResizableButtonWithControls({
onKeyDown: onKeyDown,
onKeyUp: onKeyUp,
onMouseDown: onMouseDown,
onTouchStart: onMouseDown,
onFocus: actions.resizerFocus,
onBlur: onBlur,
isHorizontal: isHorizontal,
registration: {
register: actions.registerResizer,
deregister: actions.deregisterResizer
}
}), [actions, isHorizontal]);
// eslint-disable-next-line react-hooks/exhaustive-deps
var EuiResizablePanel = useCallback(euiResizablePanelWithControls({
isHorizontal: isHorizontal,
registration: {
register: actions.registerPanel,
deregister: actions.deregisterPanel
},
onToggleCollapsed: onToggleCollapsed,
onToggleCollapsedInternal: actions.togglePanel
}), [actions, isHorizontal]);
var render = function render() {
var DEFAULT = 'custom';
var content = children(EuiResizablePanel, EuiResizableButton, {
togglePanel: actions.togglePanel
});
var modes = /*#__PURE__*/React.isValidElement(content) ? content.props.children.map(function (el) {
return getModeType(el.props.mode) || DEFAULT;
}) : null;
if (modes && (['collapsible', 'main'].every(function (i) {
return modes.includes(i);
}) || modes.every(function (i) {
return i === DEFAULT;
}))) {
return content;
} else {
throw new Error('Both `collapsible` and `main` mode panels are required.');
}
};
return ___EmotionJSX(EuiResizableContainerContextProvider, {
registry: {
panels: reducerState.panels,
resizers: reducerState.resizers
}
}, ___EmotionJSX("div", _extends({
css: cssStyles,
className: classes,
ref: containerRef
}, rest), render()));
};