/**
* Navbar Component<BR>
* <BR><BR><img src=/tk/lib/components/w/img/navbar.png width=30% style="border:1px lime dashed;padding:20px">
* <BR><BR><a href="/tk/lib/components/w/html/navbar.html">DEMO</a>
*/
class Navbar extends HTMLElement {
constructor() {
wc.group("Navbar.constructor")
super();
wc.groupEnd();
};
/**
* Set observable values here. When Changed, attributeChangedCallback is invoked
* @observedAttributes
*/
static get observedAttributes() {
wc.group("Navbar.observedAttributes");
this.observables = [];
wc.groupEnd();
return this.observables;
};
/**
* Called when this is attached to DOM
* @connectedCallback.
*/
connectedCallback() {
wc.group("Navbar.connectedCallback")
let self = this;
// ADD A RANDOM ID IF NONE EXIST
if (!this.id) {
this.id = this.constructor.name.toLowerCase() + "-" + wc.uid();
}
// GET PROPERTIES AND INTERESTING ELEMENTS
this._initialize();
// ADD COMPONENT MARKTOP
this.innerHTML = this._template()
if (this.properties.cfg) {
this.configure();
}
// SUBSCRIBE TO REQUESTS FROM CLIENTS
wc.subscribe(this.id, function(e) {
self._request(e)
});
// ADD STATS AND OTHER FINAL STUFF
this._finalize();
ga('send', {'hitType': 'event','eventCategory': 'wc-connected','eventAction': 'connected','eventLabel': this.properties.cname, 'eventValue':JSON.stringify({'env':wcENV,'app':wcAPP,'url':wcURL})});
wc.groupEnd();
};
/**
* Initial Markup
* @private
* @_template
*/
_template() {
wc.group("Navbar.template");
var temp = `
<div class="pt-2 pb-2 wc-navbar-container">
<div class="container">
<div class="row">
<div class="col-12">
<nav class="navbar navbar-expand-lg padding-0">
<a class="navbar-brand" id="nav-brand" url="#">${this.properties.brand || "NAVBAR"}</a>
<button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarNav" aria-controls="navbarNav" aria-expanded="false" aria-label="Toggle navigation">
<span class="navbar-toggler-icon"></span>
</button>
<div class="collapse navbar-collapse" id="navbarNav">
<ul class="navbar-nav mr-auto wc-navbar-lhs">
</ul>
<ul class="navbar-nav wc-navbar-rhs">
</ul>
</div>
</nav>
</div>
</div>
</div>
</div>`
wc.groupEnd();
return temp;
};
/**
* Called with .setAttribute(...) function call
* @attributeChangedCallback
*/
attributeChangedCallback(attr, oldval, newval) {
wc.group("Navbar.attributeChangedCallback:", attr, oldval, newval);
this.properties = this.properties || [];
let obs = Navbar.observedAttributes;
for (let i = 0; i < obs.length; i++) {
if (newval) {
this.properties[obs[i]] = newval;
}
}
// YOUR CODE FOR CHANGES GO HERE (MAYBE NULL FIRST TIME THROUGH)
try {
switch(attr)
{
case "header":
//this.querySelector("h1").innerHTML = newval;
break;
default:
break;
}
} catch(e) {
wc.warn(e.name + ' > ' + e.message);
}
wc.groupEnd();
};
/**
* Stores DOM elements of interest for future use
* @private
* @_fetchElements
*/
_fetchElements() {
wc.group("Navbar._fetchElements");
this.dom = this.dom || [];
this.dom.content = this.innerHTML;
wc.groupEnd();
};
/**
* Component attributes are _fetched and defaults are set if undefined
* @private
* @_fetchAttributes
*/
_fetchAttributes() {
wc.group("Navbar._fetchAttributes");
this.properties = {
uparam : "",
cname : "Navbar",
author : "Mel M. Heravi, Ph.D.",
version : "1.0"
};
// SAVE WIDGET SPECIFIC PROPERTIES
this.propertiesW = [];
// SAVE ALL OTHER PROPERTIES
let attrs = wc.getAttributes(this)
for (var key in attrs) {
let attr = this.getAttribute(key) || this.properties.key;
this.properties[key] = this.getAttribute(key);
this.propertiesW[key] = this.getAttribute(key);
wc.log(key + ": " + attrs[key]);
}
// SET ALL INITIAL ATTRIBUTES
for (var key in this.properties) {
switch(key)
{
case "header":
break;
default:
break;
}
}
wc.log("ATTRIBUTES: ", this.properties);
wc.groupEnd();
};
/**
* configure the instance object and artifacts
* @configure
* @param {string} data use data if exist else use 'this.properties.cfg' parameter
*/
configure(data) {
wc.group("Navbar.configure:", data);
// IF JSON VARIABLE (data) IS PROVIDED
if (data) {
this._process(data);
} else {
let self = this;
$.getJSON(this.properties.cfg, function(data) {
self._process(data);
}).fail(function(jqXHR, textStatus, errorThrown) {
alert("ERROR: INCOMING TEXT " + jqXHR.responseText);
});
}
wc.groupEnd();
};
/**
* _process the instance object and artifacts
* @private
* @_process
*/
_process(data) {
wc.group("Navbar._process:", data);
let self = this;
let lhs = data.lhs || [];
let rhs = data.rhs || [];
this.properties.active = this.properties.active || lhs[0].id; // SET DEFAULT ACTIVE PAGE
// PROCESS LHS ITEMS
this.lhs = this.querySelector(".navbar ul.wc-navbar-lhs");
for (var i = 0; i < lhs.length; i++) {
$(this.lhs).append(`<li class="nav-item"><a class="nav-link" id="${lhs[i].id}" url="${lhs[i].url || '#'}">${lhs[i].name}</a></li>`);
}
// PROCESS LHS ITEMS
this.rhs = this.querySelector(".navbar ul.wc-navbar-rhs");
for (var i = 0; i < rhs.length; i++) {
$(this.rhs).append(`<li class="nav-item"><a class="nav-link" id="${rhs[i].id}" url="${rhs[i].url || '#'}">${rhs[i].name}</a></li>`);
}
// ADD CLICK EVENTS
$(this.querySelectorAll("a")).on("click", function() {
let id = $(this).attr("id");
let url = $(this).attr("url");
// SET ACTIVE
let lis = self.querySelectorAll("li");
$(lis).removeClass("active");
$(this).parent().addClass("active");
wc.publish("wc-navbar", {
time: new Date().getTime(),
action: "click",
id: self.id,
navid: id,
url: url
});
data.background = data.background || "#000";
data.color = data.color || "#FFF";
data.active = data.active || "red";
let cont = self.querySelector(".wc-navbar-container");
let as = self.querySelectorAll("a");
let aa = self.querySelectorAll("li.active");
$(cont).css("background", data.background);
$(as).css("color", data.color);
$(aa).find("a").css("color", data.active);
});
// LOAD ACTIVE PAGE NOW
wc.wait4(`#${this.id} #${this.properties.active}`, () => {
let act = this.querySelector("#" + this.properties.active);
$(act).click();
});
wc.groupEnd();
};
/**
* Initialize component
* @private
* @_initialize
*/
_initialize() {
wc.group("Navbar._initialize:", this.id);
// FETCH ALL INTERESTING ELEMENTS
this._fetchElements();
// FETCH ALL ATTRIBUTES
this._fetchAttributes();
wc.groupEnd();
};
/**
* Save data for analytics and final wrap up
* @private
* @_finalize
*/
_finalize() {
wc.group("Navbar._finalize:", this.id);
this.classList.add("wc");
// ADD ANALYTICS HERE
wc.setStats(this, this.properties.cname, this.properties.version);
// SHOW IT NOW (NO FLICKERS)
this.style.visibility = "visible";
wc.groupEnd();
};
/**
* Invoked When component is removed. Usually with a .remove() function call
* @disconnectedCallback
*/
disconnectedCallback() {
wc.group("Navbar.disconnectedCallback")
ga('send', {'hitType': 'event','eventCategory': 'wc-disconnected','eventAction': 'disconnected','eventLabel': this.properties.cname, 'eventValue':JSON.stringify({'env':wcENV,'app':wcAPP,'url':wcURL})});
wc.groupEnd();
};
/**
* Destroy the instance object and artifacts
* @destroy
*/
destroy() {
wc.group("Navbar.destroy");
// FREE ALL MEMORY
// you should delete all created objects here
// FREE POINTER
delete this;
// REMOVE ITEM FROM DOM
this.parentNode.removeChild(this);
ga('send', {'hitType': 'event','eventCategory': 'wc-destroyed','eventAction': 'distroy','eventLabel': this.properties.cname, 'eventValue':JSON.stringify({'env':wcENV,'app':wcAPP,'url':wcURL})});
wc.groupEnd();
};
/**
* @_publish
*/
_publish(type) {
wc.group("Navbar._publish:", type);
wc.publish("wc-navbar", {
time: new Date().getTime(),
action: type,
id: this.id
});
wc.groupEnd();
return true;
};
/**
* @_request
*/
_request(e) {
wc.group("Navbar._request:", this.id, JSON.stringify(e.detail));
switch(e.detail.request)
{
case "open":
let link = this.querySelector("#" + e.detail.link);
$(link).click();
break;
default:
alert("DO NOT HAVE SUCH REQUEST: " + e.detail.request);
break;
}
wc.groupEnd();
return true;
};
/**
* @test
*/
static test(what) {
wc.group("Navbar.test:", what);
switch(what)
{
case "label":
wc.publish("my-navbar", {time:new Date().getTime(), requestor:"my-navbar", request:"label", str:"Hello Mel !"})
break;
}
wc.groupEnd();
return true;
}
}
window.customElements.define('wc-navbar', Navbar);
// SO I CAN CALL THE STATIC METHOD GLOBALLY
window.Navbar = Navbar;