react-contenteditable
Version:
React component representing an element with editable contents
175 lines (174 loc) • 7.79 kB
JavaScript
;
var __extends = (this && this.__extends) || (function () {
var extendStatics = function (d, b) {
extendStatics = Object.setPrototypeOf ||
({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
return extendStatics(d, b);
};
return function (d, b) {
if (typeof b !== "function" && b !== null)
throw new TypeError("Class extends value " + String(b) + " is not a constructor or null");
extendStatics(d, b);
function __() { this.constructor = d; }
d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
};
})();
var __assign = (this && this.__assign) || function () {
__assign = Object.assign || function(t) {
for (var s, i = 1, n = arguments.length; i < n; i++) {
s = arguments[i];
for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p))
t[p] = s[p];
}
return t;
};
return __assign.apply(this, arguments);
};
var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
var desc = Object.getOwnPropertyDescriptor(m, k);
if (!desc || ("get" in desc ? !m.__esModule : desc.writable || desc.configurable)) {
desc = { enumerable: true, get: function() { return m[k]; } };
}
Object.defineProperty(o, k2, desc);
}) : (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
o[k2] = m[k];
}));
var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
Object.defineProperty(o, "default", { enumerable: true, value: v });
}) : function(o, v) {
o["default"] = v;
});
var __importStar = (this && this.__importStar) || function (mod) {
if (mod && mod.__esModule) return mod;
var result = {};
if (mod != null) for (var k in mod) if (k !== "default" && Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
__setModuleDefault(result, mod);
return result;
};
var __rest = (this && this.__rest) || function (s, e) {
var t = {};
for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p) && e.indexOf(p) < 0)
t[p] = s[p];
if (s != null && typeof Object.getOwnPropertySymbols === "function")
for (var i = 0, p = Object.getOwnPropertySymbols(s); i < p.length; i++) {
if (e.indexOf(p[i]) < 0 && Object.prototype.propertyIsEnumerable.call(s, p[i]))
t[p[i]] = s[p[i]];
}
return t;
};
var __importDefault = (this && this.__importDefault) || function (mod) {
return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
var React = __importStar(require("react"));
var fast_deep_equal_1 = __importDefault(require("fast-deep-equal"));
var PropTypes = __importStar(require("prop-types"));
function normalizeHtml(str) {
return str && str.replace(/ |\u202F|\u00A0/g, ' ').replace(/<br \/>/g, '<br>');
}
function replaceCaret(el) {
// Place the caret at the end of the element
var target = document.createTextNode('');
el.appendChild(target);
// do not move caret if element was not focused
var isTargetFocused = document.activeElement === el;
if (target !== null && target.nodeValue !== null && isTargetFocused) {
var sel = window.getSelection();
if (sel !== null) {
var range = document.createRange();
range.setStart(target, target.nodeValue.length);
range.collapse(true);
sel.removeAllRanges();
sel.addRange(range);
}
if (el instanceof HTMLElement)
el.focus();
}
}
/**
* A simple component for an html element with editable contents.
*/
var ContentEditable = /** @class */ (function (_super) {
__extends(ContentEditable, _super);
function ContentEditable() {
var _this = _super !== null && _super.apply(this, arguments) || this;
_this.lastHtml = _this.props.html;
_this.el = typeof _this.props.innerRef === 'function' ? { current: null } : React.createRef();
_this.getEl = function () { return (_this.props.innerRef && typeof _this.props.innerRef !== 'function' ? _this.props.innerRef : _this.el).current; };
_this.emitChange = function (originalEvt) {
var el = _this.getEl();
if (!el)
return;
var html = el.innerHTML;
if (_this.props.onChange && html !== _this.lastHtml) {
// Clone event with Object.assign to avoid
// "Cannot assign to read only property 'target' of object"
var evt = Object.assign({}, originalEvt, {
target: {
value: html
}
});
_this.props.onChange(evt);
}
_this.lastHtml = html;
};
return _this;
}
ContentEditable.prototype.render = function () {
var _this = this;
var _a = this.props, tagName = _a.tagName, html = _a.html, innerRef = _a.innerRef, props = __rest(_a, ["tagName", "html", "innerRef"]);
return React.createElement(tagName || 'div', __assign(__assign({}, props), { ref: typeof innerRef === 'function' ? function (current) {
innerRef(current);
_this.el.current = current;
} : innerRef || this.el, onInput: this.emitChange, onBlur: this.props.onBlur || this.emitChange, onKeyUp: this.props.onKeyUp || this.emitChange, onKeyDown: this.props.onKeyDown || this.emitChange, contentEditable: !this.props.disabled, dangerouslySetInnerHTML: { __html: html } }), this.props.children);
};
ContentEditable.prototype.shouldComponentUpdate = function (nextProps) {
var props = this.props;
var el = this.getEl();
// We need not rerender if the change of props simply reflects the user's edits.
// Rerendering in this case would make the cursor/caret jump
// Rerender if there is no element yet... (somehow?)
if (!el)
return true;
// ...or if html really changed... (programmatically, not by user edit)
if (normalizeHtml(nextProps.html) !== normalizeHtml(el.innerHTML)) {
return true;
}
// Handle additional properties
return props.disabled !== nextProps.disabled ||
props.tagName !== nextProps.tagName ||
props.className !== nextProps.className ||
props.innerRef !== nextProps.innerRef ||
props.placeholder !== nextProps.placeholder ||
!(0, fast_deep_equal_1.default)(props.style, nextProps.style);
};
ContentEditable.prototype.componentDidUpdate = function () {
var el = this.getEl();
if (!el)
return;
// Perhaps React (whose VDOM gets outdated because we often prevent
// rerendering) did not update the DOM. So we update it manually now.
if (this.props.html !== el.innerHTML) {
el.innerHTML = this.props.html;
}
this.lastHtml = this.props.html;
replaceCaret(el);
};
ContentEditable.propTypes = {
html: PropTypes.string.isRequired,
onChange: PropTypes.func,
disabled: PropTypes.bool,
tagName: PropTypes.string,
className: PropTypes.string,
style: PropTypes.object,
innerRef: PropTypes.oneOfType([
PropTypes.object,
PropTypes.func,
])
};
return ContentEditable;
}(React.Component));
exports.default = ContentEditable;