mirror of
https://github.com/discourse/discourse.git
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1669 lines
45 KiB
JavaScript
1669 lines
45 KiB
JavaScript
!function(e){if("object"==typeof exports&&"undefined"!=typeof module)module.exports=e();else if("function"==typeof define&&define.amd)define([],e);else{var f;"undefined"!=typeof window?f=window:"undefined"!=typeof global?f=global:"undefined"!=typeof self&&(f=self),f.virtualDom=e()}}(function(){var define,module,exports;return (function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error("Cannot find module '"+o+"'");throw f.code="MODULE_NOT_FOUND",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s})({1:[function(require,module,exports){
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var createElement = require("./vdom/create-element.js")
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module.exports = createElement
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},{"./vdom/create-element.js":15}],2:[function(require,module,exports){
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var diff = require("./vtree/diff.js")
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module.exports = diff
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},{"./vtree/diff.js":35}],3:[function(require,module,exports){
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var h = require("./virtual-hyperscript/index.js")
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module.exports = h
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},{"./virtual-hyperscript/index.js":22}],4:[function(require,module,exports){
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var diff = require("./diff.js")
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var patch = require("./patch.js")
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var h = require("./h.js")
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var create = require("./create-element.js")
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var VNode = require('./vnode/vnode.js')
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var VText = require('./vnode/vtext.js')
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module.exports = {
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diff: diff,
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patch: patch,
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h: h,
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create: create,
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VNode: VNode,
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VText: VText
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}
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},{"./create-element.js":1,"./diff.js":2,"./h.js":3,"./patch.js":13,"./vnode/vnode.js":31,"./vnode/vtext.js":33}],5:[function(require,module,exports){
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/*!
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* Cross-Browser Split 1.1.1
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* Copyright 2007-2012 Steven Levithan <stevenlevithan.com>
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* Available under the MIT License
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* ECMAScript compliant, uniform cross-browser split method
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*/
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/**
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* Splits a string into an array of strings using a regex or string separator. Matches of the
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* separator are not included in the result array. However, if `separator` is a regex that contains
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* capturing groups, backreferences are spliced into the result each time `separator` is matched.
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* Fixes browser bugs compared to the native `String.prototype.split` and can be used reliably
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* cross-browser.
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* @param {String} str String to split.
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* @param {RegExp|String} separator Regex or string to use for separating the string.
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* @param {Number} [limit] Maximum number of items to include in the result array.
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* @returns {Array} Array of substrings.
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* @example
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*
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* // Basic use
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* split('a b c d', ' ');
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* // -> ['a', 'b', 'c', 'd']
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*
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* // With limit
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* split('a b c d', ' ', 2);
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* // -> ['a', 'b']
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*
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* // Backreferences in result array
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* split('..word1 word2..', /([a-z]+)(\d+)/i);
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* // -> ['..', 'word', '1', ' ', 'word', '2', '..']
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*/
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module.exports = (function split(undef) {
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var nativeSplit = String.prototype.split,
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compliantExecNpcg = /()??/.exec("")[1] === undef,
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// NPCG: nonparticipating capturing group
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self;
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self = function(str, separator, limit) {
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// If `separator` is not a regex, use `nativeSplit`
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if (Object.prototype.toString.call(separator) !== "[object RegExp]") {
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return nativeSplit.call(str, separator, limit);
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}
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var output = [],
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flags = (separator.ignoreCase ? "i" : "") + (separator.multiline ? "m" : "") + (separator.extended ? "x" : "") + // Proposed for ES6
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(separator.sticky ? "y" : ""),
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// Firefox 3+
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lastLastIndex = 0,
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// Make `global` and avoid `lastIndex` issues by working with a copy
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separator = new RegExp(separator.source, flags + "g"),
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separator2, match, lastIndex, lastLength;
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str += ""; // Type-convert
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if (!compliantExecNpcg) {
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// Doesn't need flags gy, but they don't hurt
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separator2 = new RegExp("^" + separator.source + "$(?!\\s)", flags);
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}
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/* Values for `limit`, per the spec:
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* If undefined: 4294967295 // Math.pow(2, 32) - 1
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* If 0, Infinity, or NaN: 0
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* If positive number: limit = Math.floor(limit); if (limit > 4294967295) limit -= 4294967296;
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* If negative number: 4294967296 - Math.floor(Math.abs(limit))
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* If other: Type-convert, then use the above rules
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*/
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limit = limit === undef ? -1 >>> 0 : // Math.pow(2, 32) - 1
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limit >>> 0; // ToUint32(limit)
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while (match = separator.exec(str)) {
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// `separator.lastIndex` is not reliable cross-browser
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lastIndex = match.index + match[0].length;
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if (lastIndex > lastLastIndex) {
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output.push(str.slice(lastLastIndex, match.index));
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// Fix browsers whose `exec` methods don't consistently return `undefined` for
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// nonparticipating capturing groups
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if (!compliantExecNpcg && match.length > 1) {
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match[0].replace(separator2, function() {
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for (var i = 1; i < arguments.length - 2; i++) {
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if (arguments[i] === undef) {
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match[i] = undef;
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}
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}
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});
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}
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if (match.length > 1 && match.index < str.length) {
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Array.prototype.push.apply(output, match.slice(1));
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}
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lastLength = match[0].length;
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lastLastIndex = lastIndex;
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if (output.length >= limit) {
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break;
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}
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}
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if (separator.lastIndex === match.index) {
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separator.lastIndex++; // Avoid an infinite loop
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}
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}
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if (lastLastIndex === str.length) {
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if (lastLength || !separator.test("")) {
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output.push("");
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}
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} else {
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output.push(str.slice(lastLastIndex));
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}
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return output.length > limit ? output.slice(0, limit) : output;
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};
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return self;
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})();
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},{}],6:[function(require,module,exports){
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},{}],7:[function(require,module,exports){
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'use strict';
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var OneVersionConstraint = require('individual/one-version');
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var MY_VERSION = '7';
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OneVersionConstraint('ev-store', MY_VERSION);
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var hashKey = '__EV_STORE_KEY@' + MY_VERSION;
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module.exports = EvStore;
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function EvStore(elem) {
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var hash = elem[hashKey];
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if (!hash) {
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hash = elem[hashKey] = {};
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}
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return hash;
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}
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},{"individual/one-version":9}],8:[function(require,module,exports){
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(function (global){
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'use strict';
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/*global window, global*/
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var root = typeof window !== 'undefined' ?
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window : typeof global !== 'undefined' ?
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global : {};
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module.exports = Individual;
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function Individual(key, value) {
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if (key in root) {
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return root[key];
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}
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root[key] = value;
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return value;
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}
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}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
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},{}],9:[function(require,module,exports){
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'use strict';
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var Individual = require('./index.js');
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module.exports = OneVersion;
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function OneVersion(moduleName, version, defaultValue) {
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var key = '__INDIVIDUAL_ONE_VERSION_' + moduleName;
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var enforceKey = key + '_ENFORCE_SINGLETON';
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var versionValue = Individual(enforceKey, version);
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if (versionValue !== version) {
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throw new Error('Can only have one copy of ' +
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moduleName + '.\n' +
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'You already have version ' + versionValue +
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' installed.\n' +
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'This means you cannot install version ' + version);
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}
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return Individual(key, defaultValue);
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}
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},{"./index.js":8}],10:[function(require,module,exports){
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(function (global){
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var topLevel = typeof global !== 'undefined' ? global :
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typeof window !== 'undefined' ? window : {}
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var minDoc = require('min-document');
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if (typeof document !== 'undefined') {
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module.exports = document;
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} else {
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var doccy = topLevel['__GLOBAL_DOCUMENT_CACHE@4'];
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if (!doccy) {
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doccy = topLevel['__GLOBAL_DOCUMENT_CACHE@4'] = minDoc;
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}
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module.exports = doccy;
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}
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}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
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},{"min-document":6}],11:[function(require,module,exports){
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"use strict";
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module.exports = function isObject(x) {
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return typeof x === "object" && x !== null;
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};
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},{}],12:[function(require,module,exports){
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var nativeIsArray = Array.isArray
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var toString = Object.prototype.toString
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module.exports = nativeIsArray || isArray
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function isArray(obj) {
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return toString.call(obj) === "[object Array]"
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}
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},{}],13:[function(require,module,exports){
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var patch = require("./vdom/patch.js")
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module.exports = patch
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},{"./vdom/patch.js":18}],14:[function(require,module,exports){
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var isObject = require("is-object")
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var isHook = require("../vnode/is-vhook.js")
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module.exports = applyProperties
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function applyProperties(node, props, previous) {
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for (var propName in props) {
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var propValue = props[propName]
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if (propValue === undefined) {
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removeProperty(node, propName, propValue, previous);
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} else if (isHook(propValue)) {
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removeProperty(node, propName, propValue, previous)
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if (propValue.hook) {
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propValue.hook(node,
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propName,
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previous ? previous[propName] : undefined)
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}
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} else {
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if (isObject(propValue)) {
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patchObject(node, props, previous, propName, propValue);
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} else {
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node[propName] = propValue
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}
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}
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}
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}
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function removeProperty(node, propName, propValue, previous) {
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if (previous) {
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var previousValue = previous[propName]
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if (!isHook(previousValue)) {
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if (propName === "attributes") {
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for (var attrName in previousValue) {
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node.removeAttribute(attrName)
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}
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} else if (propName === "style") {
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for (var i in previousValue) {
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node.style[i] = ""
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}
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} else if (typeof previousValue === "string") {
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node[propName] = ""
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} else {
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node[propName] = null
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}
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} else if (previousValue.unhook) {
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previousValue.unhook(node, propName, propValue)
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}
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}
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}
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function patchObject(node, props, previous, propName, propValue) {
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var previousValue = previous ? previous[propName] : undefined
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// Set attributes
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if (propName === "attributes") {
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for (var attrName in propValue) {
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var attrValue = propValue[attrName]
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if (attrValue === undefined) {
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node.removeAttribute(attrName)
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} else {
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node.setAttribute(attrName, attrValue)
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}
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}
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return
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}
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if(previousValue && isObject(previousValue) &&
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getPrototype(previousValue) !== getPrototype(propValue)) {
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node[propName] = propValue
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return
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}
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if (!isObject(node[propName])) {
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node[propName] = {}
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}
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var replacer = propName === "style" ? "" : undefined
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for (var k in propValue) {
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var value = propValue[k]
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node[propName][k] = (value === undefined) ? replacer : value
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}
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}
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|
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function getPrototype(value) {
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if (Object.getPrototypeOf) {
|
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return Object.getPrototypeOf(value)
|
|
} else if (value.__proto__) {
|
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return value.__proto__
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} else if (value.constructor) {
|
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return value.constructor.prototype
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}
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}
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},{"../vnode/is-vhook.js":26,"is-object":11}],15:[function(require,module,exports){
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var document = require("global/document")
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var applyProperties = require("./apply-properties")
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var isVNode = require("../vnode/is-vnode.js")
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var isVText = require("../vnode/is-vtext.js")
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var isWidget = require("../vnode/is-widget.js")
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var handleThunk = require("../vnode/handle-thunk.js")
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module.exports = createElement
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function createElement(vnode, opts) {
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var doc = opts ? opts.document || document : document
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var warn = opts ? opts.warn : null
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vnode = handleThunk(vnode).a
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|
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if (isWidget(vnode)) {
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return vnode.init()
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} else if (isVText(vnode)) {
|
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return doc.createTextNode(vnode.text)
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} else if (!isVNode(vnode)) {
|
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if (warn) {
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warn("Item is not a valid virtual dom node", vnode)
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}
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return null
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}
|
|
|
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var node = (vnode.namespace === null) ?
|
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doc.createElement(vnode.tagName) :
|
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doc.createElementNS(vnode.namespace, vnode.tagName)
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|
|
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var props = vnode.properties
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applyProperties(node, props)
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|
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var children = vnode.children
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|
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for (var i = 0; i < children.length; i++) {
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var childNode = createElement(children[i], opts)
|
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if (childNode) {
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node.appendChild(childNode)
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}
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}
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|
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return node
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}
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},{"../vnode/handle-thunk.js":24,"../vnode/is-vnode.js":27,"../vnode/is-vtext.js":28,"../vnode/is-widget.js":29,"./apply-properties":14,"global/document":10}],16:[function(require,module,exports){
|
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// Maps a virtual DOM tree onto a real DOM tree in an efficient manner.
|
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// We don't want to read all of the DOM nodes in the tree so we use
|
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// the in-order tree indexing to eliminate recursion down certain branches.
|
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// We only recurse into a DOM node if we know that it contains a child of
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// interest.
|
|
|
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var noChild = {}
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|
|
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module.exports = domIndex
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|
|
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function domIndex(rootNode, tree, indices, nodes) {
|
|
if (!indices || indices.length === 0) {
|
|
return {}
|
|
} else {
|
|
indices.sort(ascending)
|
|
return recurse(rootNode, tree, indices, nodes, 0)
|
|
}
|
|
}
|
|
|
|
function recurse(rootNode, tree, indices, nodes, rootIndex) {
|
|
nodes = nodes || {}
|
|
|
|
|
|
if (rootNode) {
|
|
if (indexInRange(indices, rootIndex, rootIndex)) {
|
|
nodes[rootIndex] = rootNode
|
|
}
|
|
|
|
var vChildren = tree.children
|
|
|
|
if (vChildren) {
|
|
|
|
var childNodes = rootNode.childNodes
|
|
|
|
for (var i = 0; i < tree.children.length; i++) {
|
|
rootIndex += 1
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|
|
|
var vChild = vChildren[i] || noChild
|
|
var nextIndex = rootIndex + (vChild.count || 0)
|
|
|
|
// skip recursion down the tree if there are no nodes down here
|
|
if (indexInRange(indices, rootIndex, nextIndex)) {
|
|
recurse(childNodes[i], vChild, indices, nodes, rootIndex)
|
|
}
|
|
|
|
rootIndex = nextIndex
|
|
}
|
|
}
|
|
}
|
|
|
|
return nodes
|
|
}
|
|
|
|
// Binary search for an index in the interval [left, right]
|
|
function indexInRange(indices, left, right) {
|
|
if (indices.length === 0) {
|
|
return false
|
|
}
|
|
|
|
var minIndex = 0
|
|
var maxIndex = indices.length - 1
|
|
var currentIndex
|
|
var currentItem
|
|
|
|
while (minIndex <= maxIndex) {
|
|
currentIndex = ((maxIndex + minIndex) / 2) >> 0
|
|
currentItem = indices[currentIndex]
|
|
|
|
if (minIndex === maxIndex) {
|
|
return currentItem >= left && currentItem <= right
|
|
} else if (currentItem < left) {
|
|
minIndex = currentIndex + 1
|
|
} else if (currentItem > right) {
|
|
maxIndex = currentIndex - 1
|
|
} else {
|
|
return true
|
|
}
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
function ascending(a, b) {
|
|
return a > b ? 1 : -1
|
|
}
|
|
|
|
},{}],17:[function(require,module,exports){
|
|
var applyProperties = require("./apply-properties")
|
|
|
|
var isWidget = require("../vnode/is-widget.js")
|
|
var VPatch = require("../vnode/vpatch.js")
|
|
|
|
var updateWidget = require("./update-widget")
|
|
|
|
module.exports = applyPatch
|
|
|
|
function applyPatch(vpatch, domNode, renderOptions) {
|
|
var type = vpatch.type
|
|
var vNode = vpatch.vNode
|
|
var patch = vpatch.patch
|
|
|
|
switch (type) {
|
|
case VPatch.REMOVE:
|
|
return removeNode(domNode, vNode)
|
|
case VPatch.INSERT:
|
|
return insertNode(domNode, patch, renderOptions)
|
|
case VPatch.VTEXT:
|
|
return stringPatch(domNode, vNode, patch, renderOptions)
|
|
case VPatch.WIDGET:
|
|
return widgetPatch(domNode, vNode, patch, renderOptions)
|
|
case VPatch.VNODE:
|
|
return vNodePatch(domNode, vNode, patch, renderOptions)
|
|
case VPatch.ORDER:
|
|
reorderChildren(domNode, patch)
|
|
return domNode
|
|
case VPatch.PROPS:
|
|
applyProperties(domNode, patch, vNode.properties)
|
|
return domNode
|
|
case VPatch.THUNK:
|
|
return replaceRoot(domNode,
|
|
renderOptions.patch(domNode, patch, renderOptions))
|
|
default:
|
|
return domNode
|
|
}
|
|
}
|
|
|
|
function removeNode(domNode, vNode) {
|
|
var parentNode = domNode.parentNode
|
|
|
|
if (parentNode) {
|
|
parentNode.removeChild(domNode)
|
|
}
|
|
|
|
destroyWidget(domNode, vNode);
|
|
|
|
return null
|
|
}
|
|
|
|
function insertNode(parentNode, vNode, renderOptions) {
|
|
var newNode = renderOptions.render(vNode, renderOptions)
|
|
|
|
if (parentNode) {
|
|
parentNode.appendChild(newNode)
|
|
}
|
|
|
|
return parentNode
|
|
}
|
|
|
|
function stringPatch(domNode, leftVNode, vText, renderOptions) {
|
|
var newNode
|
|
|
|
if (domNode.nodeType === 3) {
|
|
domNode.replaceData(0, domNode.length, vText.text)
|
|
newNode = domNode
|
|
} else {
|
|
var parentNode = domNode.parentNode
|
|
newNode = renderOptions.render(vText, renderOptions)
|
|
|
|
if (parentNode && newNode !== domNode) {
|
|
parentNode.replaceChild(newNode, domNode)
|
|
}
|
|
}
|
|
|
|
return newNode
|
|
}
|
|
|
|
function widgetPatch(domNode, leftVNode, widget, renderOptions) {
|
|
var updating = updateWidget(leftVNode, widget)
|
|
var newNode
|
|
|
|
if (updating) {
|
|
newNode = widget.update(leftVNode, domNode) || domNode
|
|
} else {
|
|
newNode = renderOptions.render(widget, renderOptions)
|
|
}
|
|
|
|
var parentNode = domNode.parentNode
|
|
|
|
if (parentNode && newNode !== domNode) {
|
|
parentNode.replaceChild(newNode, domNode)
|
|
}
|
|
|
|
if (!updating) {
|
|
destroyWidget(domNode, leftVNode)
|
|
}
|
|
|
|
return newNode
|
|
}
|
|
|
|
function vNodePatch(domNode, leftVNode, vNode, renderOptions) {
|
|
var parentNode = domNode.parentNode
|
|
var newNode = renderOptions.render(vNode, renderOptions)
|
|
|
|
if (parentNode && newNode !== domNode) {
|
|
parentNode.replaceChild(newNode, domNode)
|
|
}
|
|
|
|
return newNode
|
|
}
|
|
|
|
function destroyWidget(domNode, w) {
|
|
if (typeof w.destroy === "function" && isWidget(w)) {
|
|
w.destroy(domNode)
|
|
}
|
|
}
|
|
|
|
function reorderChildren(domNode, moves) {
|
|
var childNodes = domNode.childNodes
|
|
var keyMap = {}
|
|
var node
|
|
var remove
|
|
var insert
|
|
|
|
for (var i = 0; i < moves.removes.length; i++) {
|
|
remove = moves.removes[i]
|
|
node = childNodes[remove.from]
|
|
if (remove.key) {
|
|
keyMap[remove.key] = node
|
|
}
|
|
domNode.removeChild(node)
|
|
}
|
|
|
|
var length = childNodes.length
|
|
for (var j = 0; j < moves.inserts.length; j++) {
|
|
insert = moves.inserts[j]
|
|
node = keyMap[insert.key]
|
|
// this is the weirdest bug i've ever seen in webkit
|
|
domNode.insertBefore(node, insert.to >= length++ ? null : childNodes[insert.to])
|
|
}
|
|
}
|
|
|
|
function replaceRoot(oldRoot, newRoot) {
|
|
if (oldRoot && newRoot && oldRoot !== newRoot && oldRoot.parentNode) {
|
|
oldRoot.parentNode.replaceChild(newRoot, oldRoot)
|
|
}
|
|
|
|
return newRoot;
|
|
}
|
|
|
|
},{"../vnode/is-widget.js":29,"../vnode/vpatch.js":32,"./apply-properties":14,"./update-widget":19}],18:[function(require,module,exports){
|
|
var document = require("global/document")
|
|
var isArray = require("x-is-array")
|
|
|
|
var render = require("./create-element")
|
|
var domIndex = require("./dom-index")
|
|
var patchOp = require("./patch-op")
|
|
module.exports = patch
|
|
|
|
function patch(rootNode, patches, renderOptions) {
|
|
renderOptions = renderOptions || {}
|
|
renderOptions.patch = renderOptions.patch && renderOptions.patch !== patch
|
|
? renderOptions.patch
|
|
: patchRecursive
|
|
renderOptions.render = renderOptions.render || render
|
|
|
|
return renderOptions.patch(rootNode, patches, renderOptions)
|
|
}
|
|
|
|
function patchRecursive(rootNode, patches, renderOptions) {
|
|
var indices = patchIndices(patches)
|
|
|
|
if (indices.length === 0) {
|
|
return rootNode
|
|
}
|
|
|
|
var index = domIndex(rootNode, patches.a, indices)
|
|
var ownerDocument = rootNode.ownerDocument
|
|
|
|
if (!renderOptions.document && ownerDocument !== document) {
|
|
renderOptions.document = ownerDocument
|
|
}
|
|
|
|
for (var i = 0; i < indices.length; i++) {
|
|
var nodeIndex = indices[i]
|
|
rootNode = applyPatch(rootNode,
|
|
index[nodeIndex],
|
|
patches[nodeIndex],
|
|
renderOptions)
|
|
}
|
|
|
|
return rootNode
|
|
}
|
|
|
|
function applyPatch(rootNode, domNode, patchList, renderOptions) {
|
|
if (!domNode) {
|
|
return rootNode
|
|
}
|
|
|
|
var newNode
|
|
|
|
if (isArray(patchList)) {
|
|
for (var i = 0; i < patchList.length; i++) {
|
|
newNode = patchOp(patchList[i], domNode, renderOptions)
|
|
|
|
if (domNode === rootNode) {
|
|
rootNode = newNode
|
|
}
|
|
}
|
|
} else {
|
|
newNode = patchOp(patchList, domNode, renderOptions)
|
|
|
|
if (domNode === rootNode) {
|
|
rootNode = newNode
|
|
}
|
|
}
|
|
|
|
return rootNode
|
|
}
|
|
|
|
function patchIndices(patches) {
|
|
var indices = []
|
|
|
|
for (var key in patches) {
|
|
if (key !== "a") {
|
|
indices.push(Number(key))
|
|
}
|
|
}
|
|
|
|
return indices
|
|
}
|
|
|
|
},{"./create-element":15,"./dom-index":16,"./patch-op":17,"global/document":10,"x-is-array":12}],19:[function(require,module,exports){
|
|
var isWidget = require("../vnode/is-widget.js")
|
|
|
|
module.exports = updateWidget
|
|
|
|
function updateWidget(a, b) {
|
|
if (isWidget(a) && isWidget(b)) {
|
|
if ("name" in a && "name" in b) {
|
|
return a.id === b.id
|
|
} else {
|
|
return a.init === b.init
|
|
}
|
|
}
|
|
|
|
return false
|
|
}
|
|
|
|
},{"../vnode/is-widget.js":29}],20:[function(require,module,exports){
|
|
'use strict';
|
|
|
|
var EvStore = require('ev-store');
|
|
|
|
module.exports = EvHook;
|
|
|
|
function EvHook(value) {
|
|
if (!(this instanceof EvHook)) {
|
|
return new EvHook(value);
|
|
}
|
|
|
|
this.value = value;
|
|
}
|
|
|
|
EvHook.prototype.hook = function (node, propertyName) {
|
|
var es = EvStore(node);
|
|
var propName = propertyName.substr(3);
|
|
|
|
es[propName] = this.value;
|
|
};
|
|
|
|
EvHook.prototype.unhook = function(node, propertyName) {
|
|
var es = EvStore(node);
|
|
var propName = propertyName.substr(3);
|
|
|
|
es[propName] = undefined;
|
|
};
|
|
|
|
},{"ev-store":7}],21:[function(require,module,exports){
|
|
'use strict';
|
|
|
|
module.exports = SoftSetHook;
|
|
|
|
function SoftSetHook(value) {
|
|
if (!(this instanceof SoftSetHook)) {
|
|
return new SoftSetHook(value);
|
|
}
|
|
|
|
this.value = value;
|
|
}
|
|
|
|
SoftSetHook.prototype.hook = function (node, propertyName) {
|
|
if (node[propertyName] !== this.value) {
|
|
node[propertyName] = this.value;
|
|
}
|
|
};
|
|
|
|
},{}],22:[function(require,module,exports){
|
|
'use strict';
|
|
|
|
var isArray = require('x-is-array');
|
|
|
|
var VNode = require('../vnode/vnode.js');
|
|
var VText = require('../vnode/vtext.js');
|
|
var isVNode = require('../vnode/is-vnode');
|
|
var isVText = require('../vnode/is-vtext');
|
|
var isWidget = require('../vnode/is-widget');
|
|
var isHook = require('../vnode/is-vhook');
|
|
var isVThunk = require('../vnode/is-thunk');
|
|
|
|
var parseTag = require('./parse-tag.js');
|
|
var softSetHook = require('./hooks/soft-set-hook.js');
|
|
var evHook = require('./hooks/ev-hook.js');
|
|
|
|
module.exports = h;
|
|
|
|
function h(tagName, properties, children) {
|
|
var childNodes = [];
|
|
var tag, props, key, namespace;
|
|
|
|
if (!children && isChildren(properties)) {
|
|
children = properties;
|
|
props = {};
|
|
}
|
|
|
|
props = props || properties || {};
|
|
tag = parseTag(tagName, props);
|
|
|
|
// support keys
|
|
if (props.hasOwnProperty('key')) {
|
|
key = props.key;
|
|
props.key = undefined;
|
|
}
|
|
|
|
// support namespace
|
|
if (props.hasOwnProperty('namespace')) {
|
|
namespace = props.namespace;
|
|
props.namespace = undefined;
|
|
}
|
|
|
|
// fix cursor bug
|
|
if (tag === 'INPUT' &&
|
|
!namespace &&
|
|
props.hasOwnProperty('value') &&
|
|
props.value !== undefined &&
|
|
!isHook(props.value)
|
|
) {
|
|
props.value = softSetHook(props.value);
|
|
}
|
|
|
|
transformProperties(props);
|
|
|
|
if (children !== undefined && children !== null) {
|
|
addChild(children, childNodes, tag, props);
|
|
}
|
|
|
|
|
|
return new VNode(tag, props, childNodes, key, namespace);
|
|
}
|
|
|
|
function addChild(c, childNodes, tag, props) {
|
|
if (typeof c === 'string') {
|
|
childNodes.push(new VText(c));
|
|
} else if (typeof c === 'number') {
|
|
childNodes.push(new VText(String(c)));
|
|
} else if (isChild(c)) {
|
|
childNodes.push(c);
|
|
} else if (isArray(c)) {
|
|
for (var i = 0; i < c.length; i++) {
|
|
addChild(c[i], childNodes, tag, props);
|
|
}
|
|
} else if (c === null || c === undefined) {
|
|
return;
|
|
} else {
|
|
throw UnexpectedVirtualElement({
|
|
foreignObject: c,
|
|
parentVnode: {
|
|
tagName: tag,
|
|
properties: props
|
|
}
|
|
});
|
|
}
|
|
}
|
|
|
|
function transformProperties(props) {
|
|
for (var propName in props) {
|
|
if (props.hasOwnProperty(propName)) {
|
|
var value = props[propName];
|
|
|
|
if (isHook(value)) {
|
|
continue;
|
|
}
|
|
|
|
if (propName.substr(0, 3) === 'ev-') {
|
|
// add ev-foo support
|
|
props[propName] = evHook(value);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
function isChild(x) {
|
|
return isVNode(x) || isVText(x) || isWidget(x) || isVThunk(x);
|
|
}
|
|
|
|
function isChildren(x) {
|
|
return typeof x === 'string' || isArray(x) || isChild(x);
|
|
}
|
|
|
|
function UnexpectedVirtualElement(data) {
|
|
var err = new Error();
|
|
|
|
err.type = 'virtual-hyperscript.unexpected.virtual-element';
|
|
err.message = 'Unexpected virtual child passed to h().\n' +
|
|
'Expected a VNode / Vthunk / VWidget / string but:\n' +
|
|
'got:\n' +
|
|
errorString(data.foreignObject) +
|
|
'.\n' +
|
|
'The parent vnode is:\n' +
|
|
errorString(data.parentVnode)
|
|
'\n' +
|
|
'Suggested fix: change your `h(..., [ ... ])` callsite.';
|
|
err.foreignObject = data.foreignObject;
|
|
err.parentVnode = data.parentVnode;
|
|
|
|
return err;
|
|
}
|
|
|
|
function errorString(obj) {
|
|
try {
|
|
return JSON.stringify(obj, null, ' ');
|
|
} catch (e) {
|
|
return String(obj);
|
|
}
|
|
}
|
|
|
|
},{"../vnode/is-thunk":25,"../vnode/is-vhook":26,"../vnode/is-vnode":27,"../vnode/is-vtext":28,"../vnode/is-widget":29,"../vnode/vnode.js":31,"../vnode/vtext.js":33,"./hooks/ev-hook.js":20,"./hooks/soft-set-hook.js":21,"./parse-tag.js":23,"x-is-array":12}],23:[function(require,module,exports){
|
|
'use strict';
|
|
|
|
var split = require('browser-split');
|
|
|
|
var classIdSplit = /([\.#]?[a-zA-Z0-9\u007F-\uFFFF_:-]+)/;
|
|
var notClassId = /^\.|#/;
|
|
|
|
module.exports = parseTag;
|
|
|
|
function parseTag(tag, props) {
|
|
if (!tag) {
|
|
return 'DIV';
|
|
}
|
|
|
|
var noId = !(props.hasOwnProperty('id'));
|
|
|
|
var tagParts = split(tag, classIdSplit);
|
|
var tagName = null;
|
|
|
|
if (notClassId.test(tagParts[1])) {
|
|
tagName = 'DIV';
|
|
}
|
|
|
|
var classes, part, type, i;
|
|
|
|
for (i = 0; i < tagParts.length; i++) {
|
|
part = tagParts[i];
|
|
|
|
if (!part) {
|
|
continue;
|
|
}
|
|
|
|
type = part.charAt(0);
|
|
|
|
if (!tagName) {
|
|
tagName = part;
|
|
} else if (type === '.') {
|
|
classes = classes || [];
|
|
classes.push(part.substring(1, part.length));
|
|
} else if (type === '#' && noId) {
|
|
props.id = part.substring(1, part.length);
|
|
}
|
|
}
|
|
|
|
if (classes) {
|
|
if (props.className) {
|
|
classes.push(props.className);
|
|
}
|
|
|
|
props.className = classes.join(' ');
|
|
}
|
|
|
|
return props.namespace ? tagName : tagName.toUpperCase();
|
|
}
|
|
|
|
},{"browser-split":5}],24:[function(require,module,exports){
|
|
var isVNode = require("./is-vnode")
|
|
var isVText = require("./is-vtext")
|
|
var isWidget = require("./is-widget")
|
|
var isThunk = require("./is-thunk")
|
|
|
|
module.exports = handleThunk
|
|
|
|
function handleThunk(a, b) {
|
|
var renderedA = a
|
|
var renderedB = b
|
|
|
|
if (isThunk(b)) {
|
|
renderedB = renderThunk(b, a)
|
|
}
|
|
|
|
if (isThunk(a)) {
|
|
renderedA = renderThunk(a, null)
|
|
}
|
|
|
|
return {
|
|
a: renderedA,
|
|
b: renderedB
|
|
}
|
|
}
|
|
|
|
function renderThunk(thunk, previous) {
|
|
var renderedThunk = thunk.vnode
|
|
|
|
if (!renderedThunk) {
|
|
renderedThunk = thunk.vnode = thunk.render(previous)
|
|
}
|
|
|
|
if (!(isVNode(renderedThunk) ||
|
|
isVText(renderedThunk) ||
|
|
isWidget(renderedThunk))) {
|
|
throw new Error("thunk did not return a valid node");
|
|
}
|
|
|
|
return renderedThunk
|
|
}
|
|
|
|
},{"./is-thunk":25,"./is-vnode":27,"./is-vtext":28,"./is-widget":29}],25:[function(require,module,exports){
|
|
module.exports = isThunk
|
|
|
|
function isThunk(t) {
|
|
return t && t.type === "Thunk"
|
|
}
|
|
|
|
},{}],26:[function(require,module,exports){
|
|
module.exports = isHook
|
|
|
|
function isHook(hook) {
|
|
return hook &&
|
|
(typeof hook.hook === "function" && !hook.hasOwnProperty("hook") ||
|
|
typeof hook.unhook === "function" && !hook.hasOwnProperty("unhook"))
|
|
}
|
|
|
|
},{}],27:[function(require,module,exports){
|
|
var version = require("./version")
|
|
|
|
module.exports = isVirtualNode
|
|
|
|
function isVirtualNode(x) {
|
|
return x && x.type === "VirtualNode" && x.version === version
|
|
}
|
|
|
|
},{"./version":30}],28:[function(require,module,exports){
|
|
var version = require("./version")
|
|
|
|
module.exports = isVirtualText
|
|
|
|
function isVirtualText(x) {
|
|
return x && x.type === "VirtualText" && x.version === version
|
|
}
|
|
|
|
},{"./version":30}],29:[function(require,module,exports){
|
|
module.exports = isWidget
|
|
|
|
function isWidget(w) {
|
|
return w && w.type === "Widget"
|
|
}
|
|
|
|
},{}],30:[function(require,module,exports){
|
|
module.exports = "2"
|
|
|
|
},{}],31:[function(require,module,exports){
|
|
var version = require("./version")
|
|
var isVNode = require("./is-vnode")
|
|
var isWidget = require("./is-widget")
|
|
var isThunk = require("./is-thunk")
|
|
var isVHook = require("./is-vhook")
|
|
|
|
module.exports = VirtualNode
|
|
|
|
var noProperties = {}
|
|
var noChildren = []
|
|
|
|
function VirtualNode(tagName, properties, children, key, namespace) {
|
|
this.tagName = tagName
|
|
this.properties = properties || noProperties
|
|
this.children = children || noChildren
|
|
this.key = key != null ? String(key) : undefined
|
|
this.namespace = (typeof namespace === "string") ? namespace : null
|
|
|
|
var count = (children && children.length) || 0
|
|
var descendants = 0
|
|
var hasWidgets = false
|
|
var hasThunks = false
|
|
var descendantHooks = false
|
|
var hooks
|
|
|
|
for (var propName in properties) {
|
|
if (properties.hasOwnProperty(propName)) {
|
|
var property = properties[propName]
|
|
if (isVHook(property) && property.unhook) {
|
|
if (!hooks) {
|
|
hooks = {}
|
|
}
|
|
|
|
hooks[propName] = property
|
|
}
|
|
}
|
|
}
|
|
|
|
for (var i = 0; i < count; i++) {
|
|
var child = children[i]
|
|
if (isVNode(child)) {
|
|
descendants += child.count || 0
|
|
|
|
if (!hasWidgets && child.hasWidgets) {
|
|
hasWidgets = true
|
|
}
|
|
|
|
if (!hasThunks && child.hasThunks) {
|
|
hasThunks = true
|
|
}
|
|
|
|
if (!descendantHooks && (child.hooks || child.descendantHooks)) {
|
|
descendantHooks = true
|
|
}
|
|
} else if (!hasWidgets && isWidget(child)) {
|
|
if (typeof child.destroy === "function") {
|
|
hasWidgets = true
|
|
}
|
|
} else if (!hasThunks && isThunk(child)) {
|
|
hasThunks = true;
|
|
}
|
|
}
|
|
|
|
this.count = count + descendants
|
|
this.hasWidgets = hasWidgets
|
|
this.hasThunks = hasThunks
|
|
this.hooks = hooks
|
|
this.descendantHooks = descendantHooks
|
|
}
|
|
|
|
VirtualNode.prototype.version = version
|
|
VirtualNode.prototype.type = "VirtualNode"
|
|
|
|
},{"./is-thunk":25,"./is-vhook":26,"./is-vnode":27,"./is-widget":29,"./version":30}],32:[function(require,module,exports){
|
|
var version = require("./version")
|
|
|
|
VirtualPatch.NONE = 0
|
|
VirtualPatch.VTEXT = 1
|
|
VirtualPatch.VNODE = 2
|
|
VirtualPatch.WIDGET = 3
|
|
VirtualPatch.PROPS = 4
|
|
VirtualPatch.ORDER = 5
|
|
VirtualPatch.INSERT = 6
|
|
VirtualPatch.REMOVE = 7
|
|
VirtualPatch.THUNK = 8
|
|
|
|
module.exports = VirtualPatch
|
|
|
|
function VirtualPatch(type, vNode, patch) {
|
|
this.type = Number(type)
|
|
this.vNode = vNode
|
|
this.patch = patch
|
|
}
|
|
|
|
VirtualPatch.prototype.version = version
|
|
VirtualPatch.prototype.type = "VirtualPatch"
|
|
|
|
},{"./version":30}],33:[function(require,module,exports){
|
|
var version = require("./version")
|
|
|
|
module.exports = VirtualText
|
|
|
|
function VirtualText(text) {
|
|
this.text = String(text)
|
|
}
|
|
|
|
VirtualText.prototype.version = version
|
|
VirtualText.prototype.type = "VirtualText"
|
|
|
|
},{"./version":30}],34:[function(require,module,exports){
|
|
var isObject = require("is-object")
|
|
var isHook = require("../vnode/is-vhook")
|
|
|
|
module.exports = diffProps
|
|
|
|
function diffProps(a, b) {
|
|
var diff
|
|
|
|
for (var aKey in a) {
|
|
if (!(aKey in b)) {
|
|
diff = diff || {}
|
|
diff[aKey] = undefined
|
|
}
|
|
|
|
var aValue = a[aKey]
|
|
var bValue = b[aKey]
|
|
|
|
if (aValue === bValue) {
|
|
continue
|
|
} else if (isObject(aValue) && isObject(bValue)) {
|
|
if (getPrototype(bValue) !== getPrototype(aValue)) {
|
|
diff = diff || {}
|
|
diff[aKey] = bValue
|
|
} else if (isHook(bValue)) {
|
|
diff = diff || {}
|
|
diff[aKey] = bValue
|
|
} else {
|
|
var objectDiff = diffProps(aValue, bValue)
|
|
if (objectDiff) {
|
|
diff = diff || {}
|
|
diff[aKey] = objectDiff
|
|
}
|
|
}
|
|
} else {
|
|
diff = diff || {}
|
|
diff[aKey] = bValue
|
|
}
|
|
}
|
|
|
|
for (var bKey in b) {
|
|
if (!(bKey in a)) {
|
|
diff = diff || {}
|
|
diff[bKey] = b[bKey]
|
|
}
|
|
}
|
|
|
|
return diff
|
|
}
|
|
|
|
function getPrototype(value) {
|
|
if (Object.getPrototypeOf) {
|
|
return Object.getPrototypeOf(value)
|
|
} else if (value.__proto__) {
|
|
return value.__proto__
|
|
} else if (value.constructor) {
|
|
return value.constructor.prototype
|
|
}
|
|
}
|
|
|
|
},{"../vnode/is-vhook":26,"is-object":11}],35:[function(require,module,exports){
|
|
var isArray = require("x-is-array")
|
|
|
|
var VPatch = require("../vnode/vpatch")
|
|
var isVNode = require("../vnode/is-vnode")
|
|
var isVText = require("../vnode/is-vtext")
|
|
var isWidget = require("../vnode/is-widget")
|
|
var isThunk = require("../vnode/is-thunk")
|
|
var handleThunk = require("../vnode/handle-thunk")
|
|
|
|
var diffProps = require("./diff-props")
|
|
|
|
module.exports = diff
|
|
|
|
function diff(a, b) {
|
|
var patch = { a: a }
|
|
walk(a, b, patch, 0)
|
|
return patch
|
|
}
|
|
|
|
function walk(a, b, patch, index) {
|
|
if (a === b) {
|
|
return
|
|
}
|
|
|
|
var apply = patch[index]
|
|
var applyClear = false
|
|
|
|
if (isThunk(a) || isThunk(b)) {
|
|
thunks(a, b, patch, index)
|
|
} else if (b == null) {
|
|
|
|
// If a is a widget we will add a remove patch for it
|
|
// Otherwise any child widgets/hooks must be destroyed.
|
|
// This prevents adding two remove patches for a widget.
|
|
if (!isWidget(a)) {
|
|
clearState(a, patch, index)
|
|
apply = patch[index]
|
|
}
|
|
|
|
apply = appendPatch(apply, new VPatch(VPatch.REMOVE, a, b))
|
|
} else if (isVNode(b)) {
|
|
if (isVNode(a)) {
|
|
if (a.tagName === b.tagName &&
|
|
a.namespace === b.namespace &&
|
|
a.key === b.key) {
|
|
var propsPatch = diffProps(a.properties, b.properties)
|
|
if (propsPatch) {
|
|
apply = appendPatch(apply,
|
|
new VPatch(VPatch.PROPS, a, propsPatch))
|
|
}
|
|
apply = diffChildren(a, b, patch, apply, index)
|
|
} else {
|
|
apply = appendPatch(apply, new VPatch(VPatch.VNODE, a, b))
|
|
applyClear = true
|
|
}
|
|
} else {
|
|
apply = appendPatch(apply, new VPatch(VPatch.VNODE, a, b))
|
|
applyClear = true
|
|
}
|
|
} else if (isVText(b)) {
|
|
if (!isVText(a)) {
|
|
apply = appendPatch(apply, new VPatch(VPatch.VTEXT, a, b))
|
|
applyClear = true
|
|
} else if (a.text !== b.text) {
|
|
apply = appendPatch(apply, new VPatch(VPatch.VTEXT, a, b))
|
|
}
|
|
} else if (isWidget(b)) {
|
|
if (!isWidget(a)) {
|
|
applyClear = true
|
|
}
|
|
|
|
apply = appendPatch(apply, new VPatch(VPatch.WIDGET, a, b))
|
|
}
|
|
|
|
if (apply) {
|
|
patch[index] = apply
|
|
}
|
|
|
|
if (applyClear) {
|
|
clearState(a, patch, index)
|
|
}
|
|
}
|
|
|
|
function diffChildren(a, b, patch, apply, index) {
|
|
var aChildren = a.children
|
|
var orderedSet = reorder(aChildren, b.children)
|
|
var bChildren = orderedSet.children
|
|
|
|
var aLen = aChildren.length
|
|
var bLen = bChildren.length
|
|
var len = aLen > bLen ? aLen : bLen
|
|
|
|
for (var i = 0; i < len; i++) {
|
|
var leftNode = aChildren[i]
|
|
var rightNode = bChildren[i]
|
|
index += 1
|
|
|
|
if (!leftNode) {
|
|
if (rightNode) {
|
|
// Excess nodes in b need to be added
|
|
apply = appendPatch(apply,
|
|
new VPatch(VPatch.INSERT, null, rightNode))
|
|
}
|
|
} else {
|
|
walk(leftNode, rightNode, patch, index)
|
|
}
|
|
|
|
if (isVNode(leftNode) && leftNode.count) {
|
|
index += leftNode.count
|
|
}
|
|
}
|
|
|
|
if (orderedSet.moves) {
|
|
// Reorder nodes last
|
|
apply = appendPatch(apply, new VPatch(
|
|
VPatch.ORDER,
|
|
a,
|
|
orderedSet.moves
|
|
))
|
|
}
|
|
|
|
return apply
|
|
}
|
|
|
|
function clearState(vNode, patch, index) {
|
|
// TODO: Make this a single walk, not two
|
|
unhook(vNode, patch, index)
|
|
destroyWidgets(vNode, patch, index)
|
|
}
|
|
|
|
// Patch records for all destroyed widgets must be added because we need
|
|
// a DOM node reference for the destroy function
|
|
function destroyWidgets(vNode, patch, index) {
|
|
if (isWidget(vNode)) {
|
|
if (typeof vNode.destroy === "function") {
|
|
patch[index] = appendPatch(
|
|
patch[index],
|
|
new VPatch(VPatch.REMOVE, vNode, null)
|
|
)
|
|
}
|
|
} else if (isVNode(vNode) && (vNode.hasWidgets || vNode.hasThunks)) {
|
|
var children = vNode.children
|
|
var len = children.length
|
|
for (var i = 0; i < len; i++) {
|
|
var child = children[i]
|
|
index += 1
|
|
|
|
destroyWidgets(child, patch, index)
|
|
|
|
if (isVNode(child) && child.count) {
|
|
index += child.count
|
|
}
|
|
}
|
|
} else if (isThunk(vNode)) {
|
|
thunks(vNode, null, patch, index)
|
|
}
|
|
}
|
|
|
|
// Create a sub-patch for thunks
|
|
function thunks(a, b, patch, index) {
|
|
var nodes = handleThunk(a, b)
|
|
var thunkPatch = diff(nodes.a, nodes.b)
|
|
if (hasPatches(thunkPatch)) {
|
|
patch[index] = new VPatch(VPatch.THUNK, null, thunkPatch)
|
|
}
|
|
}
|
|
|
|
function hasPatches(patch) {
|
|
for (var index in patch) {
|
|
if (index !== "a") {
|
|
return true
|
|
}
|
|
}
|
|
|
|
return false
|
|
}
|
|
|
|
// Execute hooks when two nodes are identical
|
|
function unhook(vNode, patch, index) {
|
|
if (isVNode(vNode)) {
|
|
if (vNode.hooks) {
|
|
patch[index] = appendPatch(
|
|
patch[index],
|
|
new VPatch(
|
|
VPatch.PROPS,
|
|
vNode,
|
|
undefinedKeys(vNode.hooks)
|
|
)
|
|
)
|
|
}
|
|
|
|
if (vNode.descendantHooks || vNode.hasThunks) {
|
|
var children = vNode.children
|
|
var len = children.length
|
|
for (var i = 0; i < len; i++) {
|
|
var child = children[i]
|
|
index += 1
|
|
|
|
unhook(child, patch, index)
|
|
|
|
if (isVNode(child) && child.count) {
|
|
index += child.count
|
|
}
|
|
}
|
|
}
|
|
} else if (isThunk(vNode)) {
|
|
thunks(vNode, null, patch, index)
|
|
}
|
|
}
|
|
|
|
function undefinedKeys(obj) {
|
|
var result = {}
|
|
|
|
for (var key in obj) {
|
|
result[key] = undefined
|
|
}
|
|
|
|
return result
|
|
}
|
|
|
|
// List diff, naive left to right reordering
|
|
function reorder(aChildren, bChildren) {
|
|
// O(M) time, O(M) memory
|
|
var bChildIndex = keyIndex(bChildren)
|
|
var bKeys = bChildIndex.keys
|
|
var bFree = bChildIndex.free
|
|
|
|
if (bFree.length === bChildren.length) {
|
|
return {
|
|
children: bChildren,
|
|
moves: null
|
|
}
|
|
}
|
|
|
|
// O(N) time, O(N) memory
|
|
var aChildIndex = keyIndex(aChildren)
|
|
var aKeys = aChildIndex.keys
|
|
var aFree = aChildIndex.free
|
|
|
|
if (aFree.length === aChildren.length) {
|
|
return {
|
|
children: bChildren,
|
|
moves: null
|
|
}
|
|
}
|
|
|
|
// O(MAX(N, M)) memory
|
|
var newChildren = []
|
|
|
|
var freeIndex = 0
|
|
var freeCount = bFree.length
|
|
var deletedItems = 0
|
|
|
|
// Iterate through a and match a node in b
|
|
// O(N) time,
|
|
for (var i = 0 ; i < aChildren.length; i++) {
|
|
var aItem = aChildren[i]
|
|
var itemIndex
|
|
|
|
if (aItem.key) {
|
|
if (bKeys.hasOwnProperty(aItem.key)) {
|
|
// Match up the old keys
|
|
itemIndex = bKeys[aItem.key]
|
|
newChildren.push(bChildren[itemIndex])
|
|
|
|
} else {
|
|
// Remove old keyed items
|
|
itemIndex = i - deletedItems++
|
|
newChildren.push(null)
|
|
}
|
|
} else {
|
|
// Match the item in a with the next free item in b
|
|
if (freeIndex < freeCount) {
|
|
itemIndex = bFree[freeIndex++]
|
|
newChildren.push(bChildren[itemIndex])
|
|
} else {
|
|
// There are no free items in b to match with
|
|
// the free items in a, so the extra free nodes
|
|
// are deleted.
|
|
itemIndex = i - deletedItems++
|
|
newChildren.push(null)
|
|
}
|
|
}
|
|
}
|
|
|
|
var lastFreeIndex = freeIndex >= bFree.length ?
|
|
bChildren.length :
|
|
bFree[freeIndex]
|
|
|
|
// Iterate through b and append any new keys
|
|
// O(M) time
|
|
for (var j = 0; j < bChildren.length; j++) {
|
|
var newItem = bChildren[j]
|
|
|
|
if (newItem.key) {
|
|
if (!aKeys.hasOwnProperty(newItem.key)) {
|
|
// Add any new keyed items
|
|
// We are adding new items to the end and then sorting them
|
|
// in place. In future we should insert new items in place.
|
|
newChildren.push(newItem)
|
|
}
|
|
} else if (j >= lastFreeIndex) {
|
|
// Add any leftover non-keyed items
|
|
newChildren.push(newItem)
|
|
}
|
|
}
|
|
|
|
var simulate = newChildren.slice()
|
|
var simulateIndex = 0
|
|
var removes = []
|
|
var inserts = []
|
|
var simulateItem
|
|
|
|
for (var k = 0; k < bChildren.length;) {
|
|
var wantedItem = bChildren[k]
|
|
simulateItem = simulate[simulateIndex]
|
|
|
|
// remove items
|
|
while (simulateItem === null && simulate.length) {
|
|
removes.push(remove(simulate, simulateIndex, null))
|
|
simulateItem = simulate[simulateIndex]
|
|
}
|
|
|
|
if (!simulateItem || simulateItem.key !== wantedItem.key) {
|
|
// if we need a key in this position...
|
|
if (wantedItem.key) {
|
|
if (simulateItem && simulateItem.key) {
|
|
// if an insert doesn't put this key in place, it needs to move
|
|
if (bKeys[simulateItem.key] !== k + 1) {
|
|
removes.push(remove(simulate, simulateIndex, simulateItem.key))
|
|
simulateItem = simulate[simulateIndex]
|
|
// if the remove didn't put the wanted item in place, we need to insert it
|
|
if (!simulateItem || simulateItem.key !== wantedItem.key) {
|
|
inserts.push({key: wantedItem.key, to: k})
|
|
}
|
|
// items are matching, so skip ahead
|
|
else {
|
|
simulateIndex++
|
|
}
|
|
}
|
|
else {
|
|
inserts.push({key: wantedItem.key, to: k})
|
|
}
|
|
}
|
|
else {
|
|
inserts.push({key: wantedItem.key, to: k})
|
|
}
|
|
k++
|
|
}
|
|
// a key in simulate has no matching wanted key, remove it
|
|
else if (simulateItem && simulateItem.key) {
|
|
removes.push(remove(simulate, simulateIndex, simulateItem.key))
|
|
}
|
|
}
|
|
else {
|
|
simulateIndex++
|
|
k++
|
|
}
|
|
}
|
|
|
|
// remove all the remaining nodes from simulate
|
|
while(simulateIndex < simulate.length) {
|
|
simulateItem = simulate[simulateIndex]
|
|
removes.push(remove(simulate, simulateIndex, simulateItem && simulateItem.key))
|
|
}
|
|
|
|
// If the only moves we have are deletes then we can just
|
|
// let the delete patch remove these items.
|
|
if (removes.length === deletedItems && !inserts.length) {
|
|
return {
|
|
children: newChildren,
|
|
moves: null
|
|
}
|
|
}
|
|
|
|
return {
|
|
children: newChildren,
|
|
moves: {
|
|
removes: removes,
|
|
inserts: inserts
|
|
}
|
|
}
|
|
}
|
|
|
|
function remove(arr, index, key) {
|
|
arr.splice(index, 1)
|
|
|
|
return {
|
|
from: index,
|
|
key: key
|
|
}
|
|
}
|
|
|
|
function keyIndex(children) {
|
|
var keys = {}
|
|
var free = []
|
|
var length = children.length
|
|
|
|
for (var i = 0; i < length; i++) {
|
|
var child = children[i]
|
|
|
|
if (child.key) {
|
|
keys[child.key] = i
|
|
} else {
|
|
free.push(i)
|
|
}
|
|
}
|
|
|
|
return {
|
|
keys: keys, // A hash of key name to index
|
|
free: free // An array of unkeyed item indices
|
|
}
|
|
}
|
|
|
|
function appendPatch(apply, patch) {
|
|
if (apply) {
|
|
if (isArray(apply)) {
|
|
apply.push(patch)
|
|
} else {
|
|
apply = [apply, patch]
|
|
}
|
|
|
|
return apply
|
|
} else {
|
|
return patch
|
|
}
|
|
}
|
|
|
|
},{"../vnode/handle-thunk":24,"../vnode/is-thunk":25,"../vnode/is-vnode":27,"../vnode/is-vtext":28,"../vnode/is-widget":29,"../vnode/vpatch":32,"./diff-props":34,"x-is-array":12}]},{},[4])(4)
|
|
});
|