react-simple-wysiwyg/lib/utils.js

Simple and lightweight React WYSIWYG editor

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
function compare(a, b, keys) {
    return keys.every(function (key) {
        return a[key] === b[key];
    });
}
exports.compare = compare;
function deepMerge(target) {
    var _a, _b;
    var sources = [];
    for (var _i = 1; _i < arguments.length; _i++) {
        sources[_i - 1] = arguments[_i];
    }
    if (!sources.length) {
        return target;
    }
    var source = sources.shift();
    if (isObject(target) && isObject(source)) {
        for (var key in source) {
            if (!source.hasOwnProperty(key)) {
                continue;
            }
            if (isObject(source[key])) {
                if (!target[key]) {
                    Object.assign(target, (_a = {}, _a[key] = {}, _a));
                }
                deepMerge(target[key], source[key]);
            }
            else {
                Object.assign(target, (_b = {}, _b[key] = source[key], _b));
            }
        }
    }
    return deepMerge.apply(void 0, [target].concat(sources));
}
exports.deepMerge = deepMerge;
function findLastTextNode(node) {
    if (node.nodeType === Node.TEXT_NODE) {
        return node;
    }
    var children = node.childNodes;
    for (var i = children.length - 1; i >= 0; i--) {
        var textNode = findLastTextNode(children[i]);
        if (textNode !== null) {
            return textNode;
        }
    }
    return null;
}
exports.findLastTextNode = findLastTextNode;
function getSelectedNode() {
    if (document.selection) {
        return document.selection.createRange().parentElement();
    }
    var selection = window.getSelection();
    if (selection.rangeCount > 0) {
        return selection.getRangeAt(0).startContainer.parentNode;
    }
}
exports.getSelectedNode = getSelectedNode;
function isObject(item) {
    return (item && typeof item === 'object' && !Array.isArray(item));
}
function normalizeHtml(str) {
    return str && str.replace(/&nbsp;|\u202F|\u00A0/g, ' ');
}
exports.normalizeHtml = normalizeHtml;
function replaceCaret(el) {
    // Place the caret at the end of the element
    var target = findLastTextNode(el);
    // do not move caret if element was not focused
    var isTargetFocused = document.activeElement === el;
    if (target !== null && target.nodeValue !== null && isTargetFocused) {
        var range = document.createRange();
        var sel = window.getSelection();
        range.setStart(target, target.nodeValue.length);
        range.collapse(true);
        sel.removeAllRanges();
        sel.addRange(range);
        if (el instanceof HTMLElement) {
            el.focus();
        }
    }
}
exports.replaceCaret = replaceCaret;
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