%PDF-
%PDF-
Mini Shell
Mini Shell
;(function() {
"use strict";
BX.namespace("BX");
if (typeof BX.Loader !== "undefined")
{
return;
}
var STATE_READY = "ready";
var STATE_SHOWN = "shown";
var STATE_HIDDEN = "hidden";
/**
* Shows element
* @param {HTMLElement} element
* @return {BX.Promise}
*/
function show(element)
{
var promise = new BX.Promise();
if (!!element && (element.dataset.isShown === "false" || !element.dataset.isShown))
{
var handler = function(event) {
if (event.animationName === "showMainLoader")
{
promise.fulfill(event);
element.removeEventListener("animationend", handler);
element.removeEventListener("oAnimationEnd", handler);
element.removeEventListener("webkitAnimationEnd", handler);
}
};
element.addEventListener("animationend", handler);
element.addEventListener("oAnimationEnd", handler);
element.addEventListener("webkitAnimationEnd", handler);
element.dataset.isShown = true;
requestAnimationFrame(function() {
element.style.display = null;
element.classList.remove("main-ui-hide");
element.classList.add("main-ui-show");
});
}
else
{
promise.fulfill();
}
return promise;
}
/**
* Hides element
* @param {HTMLElement} element
* @return {BX.Promise}
*/
function hide(element)
{
var promise = new BX.Promise();
if (!!element && element.dataset.isShown === "true")
{
var handler = function(event) {
if (event.animationName === "hideMainLoader")
{
element.style.display = "none";
element.removeEventListener("animationend", handler);
element.removeEventListener("oAnimationEnd", handler);
element.removeEventListener("webkitAnimationEnd", handler);
promise.fulfill(event);
}
};
element.addEventListener("animationend", handler);
element.addEventListener("oAnimationEnd", handler);
element.addEventListener("webkitAnimationEnd", handler);
element.dataset.isShown = false;
requestAnimationFrame(function() {
element.classList.remove("main-ui-show");
element.classList.add("main-ui-hide");
});
}
else
{
promise.fulfill();
}
return promise;
}
/**
* Applies options to loader
* @param {BX.Loader} loader
* @param {loaderOptions} options
*/
function applyOptions(loader, options)
{
var layoutStyles = {};
var circleStyles = {};
if (typeof options.target === "object" && !!options.target)
{
loader.target = options.target;
}
if (typeof options.size === "number")
{
layoutStyles["width"] = options.size + "px";
layoutStyles["height"] = options.size + "px";
}
if (typeof options.color === "string")
{
circleStyles["stroke"] = options.color;
}
if (typeof options.offset === "object" && !!options.offset)
{
if (typeof options.offset.top === "string")
{
layoutStyles[options.mode === "inline" || options.mode === "custom" ? "top" : "margin-top"] = options.offset.top;
}
if (typeof options.offset.left === "string")
{
layoutStyles[options.mode === "inline" || options.mode === "custom" ? "left" : "margin-left"] = options.offset.left;
}
}
if (options.mode === "inline")
{
loader.layout.classList.add("main-ui-loader-inline");
}
else
{
loader.layout.classList.remove("main-ui-loader-inline");
}
if (options.mode === "custom")
{
loader.layout.classList.add("main-ui-loader-custom");
loader.layout.classList.remove("main-ui-loader-inline");
}
requestAnimationFrame(function() {
for (var layoutProp in layoutStyles)
{
if (layoutStyles.hasOwnProperty(layoutProp))
{
loader.layout.style[layoutProp] = layoutStyles[layoutProp];
}
}
for (var circleProp in circleStyles)
{
if (circleStyles.hasOwnProperty(circleProp))
{
loader.circle.style[circleProp] = circleStyles[circleProp];
}
}
});
}
/**
* @typedef {object} loaderOptions
* @property {Element|HTMLElement} [target]
* @property {int} [size = 110] - Loader size
* @property {string} [color = #BFC3C8]
* @property {string} [mode = "absolute"] - absolute|inline|custom
* @property {offsetOptions} [offset]
*/
/**
* @typedef {object} offsetOptions
* @property {string} [top]
* @property {string} [left]
*/
/**
* Implements interface for works with loader
* @param {loaderOptions} [options]
* @constructor
*/
BX.Loader = function(options)
{
this.state = STATE_READY;
this.layout = this.createLayout();
this.circle = this.layout.querySelector(".main-ui-loader-svg-circle");
this.target = null;
applyOptions(this, BX.type.isPlainObject(options) ? options : {});
};
BX.Loader.prototype = {
/**
* Creates loader layout Element
* @return {HTMLElement}
*/
createLayout: function() {
var loader = "" +
"<div class=\"main-ui-loader\">" +
"<svg class=\"main-ui-loader-svg\" viewBox=\"25 25 50 50\">" +
"<circle class=\"main-ui-loader-svg-circle\" cx=\"50\" cy=\"50\" r=\"20\" fill=\"none\" stroke-miterlimit=\"10\"/>" +
"</svg>" +
"</div>";
return BX.create("div", {html: loader}).firstElementChild;
},
/**
* Shows loader
* @param {Element|HTMLElement} [target = this.target]
* @return {BX.Promise}
*/
show: function(target)
{
var promise = new BX.Promise();
promise.setAutoResolve();
target = !!target ? target : this.target;
if (!!target && target !== this.layout.parentNode)
{
target.appendChild(this.layout);
}
if (this.state !== STATE_SHOWN)
{
this.state = STATE_SHOWN;
promise = show(this.layout);
}
return promise;
},
/**
* Hides loader
* @return {BX.Promise}
*/
hide: function()
{
var promise = new BX.Promise();
promise.setAutoResolve();
if (this.state !== STATE_HIDDEN)
{
this.state = STATE_HIDDEN;
promise = hide(this.layout);
}
return promise;
},
/**
* Checks that loader is shown
* @return {boolean}
*/
isShown: function()
{
return this.state === STATE_SHOWN;
},
/**
* Sets loader options
* @param {loaderOptions} options
*/
setOptions: function(options)
{
applyOptions(this, options);
},
/**
* Destroys loader
*/
destroy: function()
{
BX.remove(this.layout);
}
};
})();
Zerion Mini Shell 1.0