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pjax/lib/switches-selectors.js
2018-01-31 22:21:29 +00:00

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JavaScript
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var forEachEls = require("./foreach-els")
var defaultSwitches = require("./switches")
module.exports = function(switches, switchesOptions, selectors, fromEl, toEl, options) {
var switchesQueue = []
selectors.forEach(function(selector) {
var newEls = fromEl.querySelectorAll(selector)
var oldEls = toEl.querySelectorAll(selector)
if (this.log) {
this.log("Pjax switch", selector, newEls, oldEls)
}
if (newEls.length !== oldEls.length) {
throw "DOM doesnt look the same on new loaded page: " + selector + " - new " + newEls.length + ", old " + oldEls.length
}
forEachEls(newEls, function(newEl, i) {
var oldEl = oldEls[i]
if (this.log) {
this.log("newEl", newEl, "oldEl", oldEl)
}
var callback = (switches[selector]) ?
switches[selector].bind(this, oldEl, newEl, options, switchesOptions[selector]) :
defaultSwitches.outerHTML.bind(this, oldEl, newEl, options)
switchesQueue.push(callback)
}, this)
}, this)
this.state.numPendingSwitches = switchesQueue.length
switchesQueue.forEach(function(queuedSwitch) {
queuedSwitch()
})
}