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107 lines
8.8 KiB
JavaScript
107 lines
8.8 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_eventlisteners = 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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function invokeHandler(handler, vnode, event) {
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if (typeof handler === "function") {
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// call function handler
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handler.call(vnode, event, vnode);
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} else if (typeof handler === "object") {
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// call handler with arguments
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if (typeof handler[0] === "function") {
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// special case for single argument for performance
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if (handler.length === 2) {
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handler[0].call(vnode, handler[1], event, vnode);
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} else {
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var args = handler.slice(1);
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args.push(event);
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args.push(vnode);
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handler[0].apply(vnode, args);
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}
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} else {
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// call multiple handlers
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for (var i = 0; i < handler.length; i++) {
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invokeHandler(handler[i]);
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}
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}
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}
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}
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function handleEvent(event, vnode) {
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var name = event.type,
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on = vnode.data.on;
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// call event handler(s) if exists
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if (on && on[name]) {
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invokeHandler(on[name], vnode, event);
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}
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}
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function createListener() {
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return function handler(event) {
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handleEvent(event, handler.vnode);
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}
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}
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function updateEventListeners(oldVnode, vnode) {
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var oldOn = oldVnode.data.on,
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oldListener = oldVnode.listener,
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oldElm = oldVnode.elm,
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on = vnode && vnode.data.on,
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elm = vnode && vnode.elm,
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name;
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// optimization for reused immutable handlers
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if (oldOn === on) {
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return;
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}
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// remove existing listeners which no longer used
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if (oldOn && oldListener) {
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// if element changed or deleted we remove all existing listeners unconditionally
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if (!on) {
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for (name in oldOn) {
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// remove listener if element was changed or existing listeners removed
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oldElm.removeEventListener(name, oldListener, false);
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}
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} else {
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for (name in oldOn) {
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// remove listener if existing listener removed
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if (!on[name]) {
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oldElm.removeEventListener(name, oldListener, false);
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}
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}
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}
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}
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// add new listeners which has not already attached
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if (on) {
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// reuse existing listener or create new
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var listener = vnode.listener = oldVnode.listener || createListener();
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// update vnode for listener
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listener.vnode = vnode;
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// if element changed or added we add all needed listeners unconditionally
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if (!oldOn) {
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for (name in on) {
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// add listener if element was changed or new listeners added
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elm.addEventListener(name, listener, false);
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}
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} else {
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for (name in on) {
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// add listener if new listener added
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if (!oldOn[name]) {
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elm.addEventListener(name, listener, false);
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}
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}
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}
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}
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}
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module.exports = {
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create: updateEventListeners,
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update: updateEventListeners,
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destroy: updateEventListeners
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};
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},{}]},{},[1])(1)
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});
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biAgICAgICAgLy8gYWRkIGxpc3RlbmVyIGlmIG5ldyBsaXN0ZW5lciBhZGRlZFxuICAgICAgICBpZiAoIW9sZE9uW25hbWVdKSB7XG4gICAgICAgICAgZWxtLmFkZEV2ZW50TGlzdGVuZXIobmFtZSwgbGlzdGVuZXIsIGZhbHNlKTtcbiAgICAgICAgfVxuICAgICAgfVxuICAgIH1cbiAgfVxufVxuXG5tb2R1bGUuZXhwb3J0cyA9IHtcbiAgY3JlYXRlOiB1cGRhdGVFdmVudExpc3RlbmVycyxcbiAgdXBkYXRlOiB1cGRhdGVFdmVudExpc3RlbmVycyxcbiAgZGVzdHJveTogdXBkYXRlRXZlbnRMaXN0ZW5lcnNcbn07XG4iXX0=
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