pjax
Version:
Easily enable fast AJAX navigation on any website (using pushState + XHR)
141 lines (123 loc) • 4.25 kB
JavaScript
var on = require("./events/on");
module.exports = {
outerHTML: function(oldEl, newEl) {
oldEl.outerHTML = newEl.outerHTML;
this.onSwitch();
},
innerHTML: function(oldEl, newEl) {
oldEl.innerHTML = newEl.innerHTML;
if (newEl.className === "") {
oldEl.removeAttribute("class");
} else {
oldEl.className = newEl.className;
}
this.onSwitch();
},
switchElementsAlt: function(oldEl, newEl) {
oldEl.innerHTML = newEl.innerHTML;
// Copy attributes from the new element to the old one
if (newEl.hasAttributes()) {
var attrs = newEl.attributes;
for (var i = 0; i < attrs.length; i++) {
oldEl.attributes.setNamedItem(attrs[i].cloneNode());
}
}
this.onSwitch();
},
// Equivalent to outerHTML(), but doesn't require switchElementsAlt() for <head> and <body>
replaceNode: function(oldEl, newEl) {
oldEl.parentNode.replaceChild(newEl, oldEl);
this.onSwitch();
},
sideBySide: function(oldEl, newEl, options, switchOptions) {
var forEach = Array.prototype.forEach;
var elsToRemove = [];
var elsToAdd = [];
var fragToAppend = document.createDocumentFragment();
var animationEventNames =
"animationend webkitAnimationEnd MSAnimationEnd oanimationend";
var animatedElsNumber = 0;
var sexyAnimationEnd = function(e) {
if (e.target !== e.currentTarget) {
// end triggered by an animation on a child
return;
}
animatedElsNumber--;
if (animatedElsNumber <= 0 && elsToRemove) {
elsToRemove.forEach(function(el) {
// browsing quickly can make the el
// already removed by last page update ?
if (el.parentNode) {
el.parentNode.removeChild(el);
}
});
elsToAdd.forEach(function(el) {
el.className = el.className.replace(
el.getAttribute("data-pjax-classes"),
""
);
el.removeAttribute("data-pjax-classes");
});
elsToAdd = null; // free memory
elsToRemove = null; // free memory
// this is to trigger some repaint (example: picturefill)
this.onSwitch();
}
}.bind(this);
switchOptions = switchOptions || {};
forEach.call(oldEl.childNodes, function(el) {
elsToRemove.push(el);
if (el.classList && !el.classList.contains("js-Pjax-remove")) {
// for fast switch, clean element that just have been added, & not cleaned yet.
if (el.hasAttribute("data-pjax-classes")) {
el.className = el.className.replace(
el.getAttribute("data-pjax-classes"),
""
);
el.removeAttribute("data-pjax-classes");
}
el.classList.add("js-Pjax-remove");
if (switchOptions.callbacks && switchOptions.callbacks.removeElement) {
switchOptions.callbacks.removeElement(el);
}
if (switchOptions.classNames) {
el.className +=
" " +
switchOptions.classNames.remove +
" " +
(options.backward
? switchOptions.classNames.backward
: switchOptions.classNames.forward);
}
animatedElsNumber++;
on(el, animationEventNames, sexyAnimationEnd, true);
}
});
forEach.call(newEl.childNodes, function(el) {
if (el.classList) {
var addClasses = "";
if (switchOptions.classNames) {
addClasses =
" js-Pjax-add " +
switchOptions.classNames.add +
" " +
(options.backward
? switchOptions.classNames.forward
: switchOptions.classNames.backward);
}
if (switchOptions.callbacks && switchOptions.callbacks.addElement) {
switchOptions.callbacks.addElement(el);
}
el.className += addClasses;
el.setAttribute("data-pjax-classes", addClasses);
elsToAdd.push(el);
fragToAppend.appendChild(el);
animatedElsNumber++;
on(el, animationEventNames, sexyAnimationEnd, true);
}
});
// pass all className of the parent
oldEl.className = newEl.className;
oldEl.appendChild(fragToAppend);
}
};