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57 lines
6.8 KiB
JavaScript
57 lines
6.8 KiB
JavaScript
(function(f){if(typeof exports==="object"&&typeof module!=="undefined"){module.exports=f()}else if(typeof define==="function"&&define.amd){define([],f)}else{var g;if(typeof window!=="undefined"){g=window}else if(typeof global!=="undefined"){g=global}else if(typeof self!=="undefined"){g=self}else{g=this}g.snabbdom_attributes = f()}})(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 NamespaceURIs = {
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"xlink": "http://www.w3.org/1999/xlink"
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};
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var booleanAttrs = ["allowfullscreen", "async", "autofocus", "autoplay", "checked", "compact", "controls", "declare",
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"default", "defaultchecked", "defaultmuted", "defaultselected", "defer", "disabled", "draggable",
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"enabled", "formnovalidate", "hidden", "indeterminate", "inert", "ismap", "itemscope", "loop", "multiple",
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"muted", "nohref", "noresize", "noshade", "novalidate", "nowrap", "open", "pauseonexit", "readonly",
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"required", "reversed", "scoped", "seamless", "selected", "sortable", "spellcheck", "translate",
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"truespeed", "typemustmatch", "visible"];
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var booleanAttrsDict = Object.create(null);
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for(var i=0, len = booleanAttrs.length; i < len; i++) {
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booleanAttrsDict[booleanAttrs[i]] = true;
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}
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function updateAttrs(oldVnode, vnode) {
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var key, cur, old, elm = vnode.elm,
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oldAttrs = oldVnode.data.attrs, attrs = vnode.data.attrs, namespaceSplit;
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if (!oldAttrs && !attrs) return;
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oldAttrs = oldAttrs || {};
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attrs = attrs || {};
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// update modified attributes, add new attributes
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for (key in attrs) {
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cur = attrs[key];
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old = oldAttrs[key];
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if (old !== cur) {
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if(!cur && booleanAttrsDict[key])
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elm.removeAttribute(key);
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else {
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namespaceSplit = key.split(":");
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if(namespaceSplit.length > 1 && NamespaceURIs.hasOwnProperty(namespaceSplit[0]))
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elm.setAttributeNS(NamespaceURIs[namespaceSplit[0]], key, cur);
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else
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elm.setAttribute(key, cur);
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}
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}
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}
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//remove removed attributes
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// use `in` operator since the previous `for` iteration uses it (.i.e. add even attributes with undefined value)
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// the other option is to remove all attributes with value == undefined
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for (key in oldAttrs) {
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if (!(key in attrs)) {
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elm.removeAttribute(key);
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}
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}
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}
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module.exports = {create: updateAttrs, update: updateAttrs};
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},{}]},{},[1])(1)
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});
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