nightTab/js/shade.js

73 lines
2.0 KiB
JavaScript

var shade = (function() {
var previousShade = null;
function destroy() {
var all_shade = helper.eA(".js-shade");
if (all_shade[0]) {
for (var i = 0; i < all_shade.length; i++) {
all_shade[i].destroy();
};
};
};
function render(options) {
var defaultOptions = {
action: null,
includeHeader: false
};
if (options) {
defaultOptions = helper.applyOptions(defaultOptions, options);
};
var _destroy_previousShade = function() {
if (previousShade != null) {
destroy();
};
};
var _render_shade = function() {
var body = helper.e("body");
var shade = document.createElement("div");
shade.setAttribute("class", "m-shade js-shade");
if (defaultOptions.includeHeader) {
helper.addClass(shade, "m-shade-top");
};
shade.destroy = function() {
if (shade.classList.contains("is-opaque")) {
helper.removeClass(shade, "is-opaque");
helper.addClass(shade, "is-transparent");
} else {
shade.remove();
};
};
shade.addEventListener("transitionend", function(event, elapsed) {
if (event.propertyName === "opacity" && getComputedStyle(this).opacity == 0) {
this.parentElement.removeChild(this);
};
if (event.propertyName === "opacity" && getComputedStyle(this).opacity == 1) {
helper.addClass(this, "is-transition-end");
};
}.bind(shade), false);
shade.addEventListener("click", function() {
this.destroy();
if (defaultOptions.action) {
defaultOptions.action();
};
}, false);
previousShade = shade;
body.appendChild(shade);
getComputedStyle(shade).opacity;
helper.removeClass(shade, "is-transparent");
helper.addClass(shade, "is-opaque");
};
_destroy_previousShade();
_render_shade();
};
// exposed methods
return {
destroy: destroy,
render: render
};
})();