HummingBirdAnimeClient/public/js/src/base/AnimeClient.js

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// -------------------------------------------------------------------------
// ! Base
// -------------------------------------------------------------------------
const matches = (elm, selector) => {
let matches = (elm.document || elm.ownerDocument).querySelectorAll(selector),
i = matches.length;
while (--i >= 0 && matches.item(i) !== elm) {};
return i > -1;
}
export const AnimeClient = {
/**
* Placeholder function
*/
noop: () => {},
/**
* DOM selector
*
* @param {string} selector - The dom selector string
* @param {object} [context]
* @return {[HTMLElement]} - array of dom elements
*/
$(selector, context = null) {
if (typeof selector !== 'string') {
return selector;
}
context = (context !== null && context.nodeType === 1)
? context
: document;
let elements = [];
if (selector.match(/^#([\w]+$)/)) {
elements.push(document.getElementById(selector.split('#')[1]));
} else {
elements = [].slice.apply(context.querySelectorAll(selector));
}
return elements;
},
/**
* Does the selector exist on the current page?
*
* @param {string} selector
* @returns {boolean}
*/
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hasElement (selector) {
return AnimeClient.$(selector).length > 0;
},
/**
* Scroll to the top of the Page
*
* @return {void}
*/
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scrollToTop () {
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const el = AnimeClient.$('header')[0];
el.scrollIntoView(true);
},
/**
* Hide the selected element
*
* @param {string|Element} sel - the selector of the element to hide
* @return {void}
*/
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hide (sel) {
sel.setAttribute('hidden', 'hidden');
},
/**
* UnHide the selected element
*
* @param {string|Element} sel - the selector of the element to hide
* @return {void}
*/
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show (sel) {
sel.removeAttribute('hidden');
},
/**
* Display a message box
*
* @param {string} type - message type: info, error, success
* @param {string} message - the message itself
* @return {void}
*/
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showMessage (type, message) {
let template =
`<div class='message ${type}'>
<span class='icon'></span>
${message}
<span class='close'></span>
</div>`;
let sel = AnimeClient.$('.message');
if (sel[0] !== undefined) {
sel[0].remove();
}
AnimeClient.$('header')[0].insertAdjacentHTML('beforeend', template);
},
/**
* Finds the closest parent element matching the passed selector
*
* @param {HTMLElement} current - the current HTMLElement
* @param {string} parentSelector - selector for the parent element
* @return {HTMLElement|null} - the parent element
*/
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closestParent (current, parentSelector) {
if (Element.prototype.closest !== undefined) {
return current.closest(parentSelector);
}
while (current !== document.documentElement) {
if (matches(current, parentSelector)) {
return current;
}
current = current.parentElement;
}
return null;
},
/**
* Generate a full url from a relative path
*
* @param {string} path - url path
* @return {string} - full url
*/
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url (path) {
let uri = `//${document.location.host}`;
uri += (path.charAt(0) === '/') ? path : `/${path}`;
return uri;
},
/**
* Throttle execution of a function
*
* @see https://remysharp.com/2010/07/21/throttling-function-calls
* @see https://jsfiddle.net/jonathansampson/m7G64/
* @param {Number} interval - the minimum throttle time in ms
* @param {Function} fn - the function to throttle
* @param {Object} [scope] - the 'this' object for the function
* @return {Function}
*/
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throttle (interval, fn, scope) {
let wait = false;
return function (...args) {
const context = scope || this;
if ( ! wait) {
fn.apply(context, args);
wait = true;
setTimeout(function() {
wait = false;
}, interval);
}
};
},
};
// -------------------------------------------------------------------------
// ! Events
// -------------------------------------------------------------------------
function addEvent(sel, event, listener) {
// Recurse!
if (! event.match(/^([\w\-]+)$/)) {
event.split(' ').forEach((evt) => {
addEvent(sel, evt, listener);
});
}
sel.addEventListener(event, listener, false);
}
function delegateEvent(sel, target, event, listener) {
// Attach the listener to the parent
addEvent(sel, event, (e) => {
// Get live version of the target selector
AnimeClient.$(target, sel).forEach((element) => {
if(e.target == element) {
listener.call(element, e);
e.stopPropagation();
}
});
});
}
/**
* Add an event listener
*
* @param {string|HTMLElement} sel - the parent selector to bind to
* @param {string} event - event name(s) to bind
* @param {string|HTMLElement|function} target - the element to directly bind the event to
* @param {function} [listener] - event listener callback
* @return {void}
*/
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AnimeClient.on = (sel, event, target, listener) => {
if (listener === undefined) {
listener = target;
AnimeClient.$(sel).forEach((el) => {
addEvent(el, event, listener);
});
} else {
AnimeClient.$(sel).forEach((el) => {
delegateEvent(el, target, event, listener);
});
}
};
// -------------------------------------------------------------------------
// ! Ajax
// -------------------------------------------------------------------------
/**
* Url encoding for non-get requests
*
* @param data
* @returns {string}
* @private
*/
function ajaxSerialize(data) {
let pairs = [];
Object.keys(data).forEach((name) => {
let value = data[name].toString();
name = encodeURIComponent(name);
value = encodeURIComponent(value);
pairs.push(`${name}=${value}`);
});
return pairs.join('&');
}
/**
* Make an ajax request
*
* Config:{
* data: // data to send with the request
* type: // http verb of the request, defaults to GET
* success: // success callback
* error: // error callback
* }
*
* @param {string} url - the url to request
* @param {Object} config - the configuration object
* @return {void}
*/
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AnimeClient.ajax = (url, config) => {
// Set some sane defaults
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const defaultConfig = {
data: {},
type: 'GET',
dataType: '',
success: AnimeClient.noop,
mimeType: 'application/x-www-form-urlencoded',
error: AnimeClient.noop
}
config = {
...defaultConfig,
...config,
}
let request = new XMLHttpRequest();
let method = String(config.type).toUpperCase();
if (method === 'GET') {
url += (url.match(/\?/))
? ajaxSerialize(config.data)
: `?${ajaxSerialize(config.data)}`;
}
request.open(method, url);
request.onreadystatechange = () => {
if (request.readyState === 4) {
let responseText = '';
if (request.responseType === 'json') {
responseText = JSON.parse(request.responseText);
} else {
responseText = request.responseText;
}
if (request.status > 299) {
config.error.call(null, request.status, responseText, request.response);
} else {
config.success.call(null, responseText, request.status);
}
}
};
if (config.dataType === 'json') {
config.data = JSON.stringify(config.data);
config.mimeType = 'application/json';
} else {
config.data = ajaxSerialize(config.data);
}
request.setRequestHeader('Content-Type', config.mimeType);
switch (method) {
case 'GET':
request.send(null);
break;
default:
request.send(config.data);
break;
}
};
/**
* Do a get request
*
* @param {string} url
* @param {object|function} data
* @param {function} [callback]
*/
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AnimeClient.get = (url, data, callback = null) => {
if (callback === null) {
callback = data;
data = {};
}
return AnimeClient.ajax(url, {
data,
success: callback
});
};
// -------------------------------------------------------------------------
// Export
// -------------------------------------------------------------------------
export default AnimeClient;