PHP Classes

File: engine/modules/contrib/foundation/js/plugins/foundation.util.mediaQuery.js

Recommend this page to a friend!
  Classes of Aldo Tripiciano   Quanta CMS   engine/modules/contrib/foundation/js/plugins/foundation.util.mediaQuery.js   Download  
File: engine/modules/contrib/foundation/js/plugins/foundation.util.mediaQuery.js
Role: Auxiliary data
Content type: text/plain
Description: Auxiliary data
Class: Quanta CMS
Manage content that works without a database
Author: By
Last change:
Date: 5 years ago
Size: 6,729 bytes
 

Contents

Class file image Download
'use strict'; !function ($) { // Default set of media queries var defaultQueries = { 'default': 'only screen', landscape: 'only screen and (orientation: landscape)', portrait: 'only screen and (orientation: portrait)', retina: 'only screen and (-webkit-min-device-pixel-ratio: 2),' + 'only screen and (min--moz-device-pixel-ratio: 2),' + 'only screen and (-o-min-device-pixel-ratio: 2/1),' + 'only screen and (min-device-pixel-ratio: 2),' + 'only screen and (min-resolution: 192dpi),' + 'only screen and (min-resolution: 2dppx)' }; var MediaQuery = { queries: [], current: '', /** * Initializes the media query helper, by extracting the breakpoint list from the CSS and activating the breakpoint watcher. * @function * @private */ _init: function () { var self = this; var extractedStyles = $('.foundation-mq').css('font-family'); var namedQueries; namedQueries = parseStyleToObject(extractedStyles); for (var key in namedQueries) { if (namedQueries.hasOwnProperty(key)) { self.queries.push({ name: key, value: 'only screen and (min-width: ' + namedQueries[key] + ')' }); } } this.current = this._getCurrentSize(); this._watcher(); }, /** * Checks if the screen is at least as wide as a breakpoint. * @function * @param {String} size - Name of the breakpoint to check. * @returns {Boolean} `true` if the breakpoint matches, `false` if it's smaller. */ atLeast: function (size) { var query = this.get(size); if (query) { return window.matchMedia(query).matches; } return false; }, /** * Checks if the screen matches to a breakpoint. * @function * @param {String} size - Name of the breakpoint to check, either 'small only' or 'small'. Omitting 'only' falls back to using atLeast() method. * @returns {Boolean} `true` if the breakpoint matches, `false` if it does not. */ is: function (size) { size = size.trim().split(' '); if (size.length > 1 && size[1] === 'only') { if (size[0] === this._getCurrentSize()) return true; } else { return this.atLeast(size[0]); } return false; }, /** * Gets the media query of a breakpoint. * @function * @param {String} size - Name of the breakpoint to get. * @returns {String|null} - The media query of the breakpoint, or `null` if the breakpoint doesn't exist. */ get: function (size) { for (var i in this.queries) { if (this.queries.hasOwnProperty(i)) { var query = this.queries[i]; if (size === query.name) return query.value; } } return null; }, /** * Gets the current breakpoint name by testing every breakpoint and returning the last one to match (the biggest one). * @function * @private * @returns {String} Name of the current breakpoint. */ _getCurrentSize: function () { var matched; for (var i = 0; i < this.queries.length; i++) { var query = this.queries[i]; if (window.matchMedia(query.value).matches) { matched = query; } } if (typeof matched === 'object') { return matched.name; } else { return matched; } }, /** * Activates the breakpoint watcher, which fires an event on the window whenever the breakpoint changes. * @function * @private */ _watcher: function () { var _this = this; $(window).on('resize.zf.mediaquery', function () { var newSize = _this._getCurrentSize(), currentSize = _this.current; if (newSize !== currentSize) { // Change the current media query _this.current = newSize; // Broadcast the media query change on the window $(window).trigger('changed.zf.mediaquery', [newSize, currentSize]); } }); } }; Foundation.MediaQuery = MediaQuery; // matchMedia() polyfill - Test a CSS media type/query in JS. // Authors & copyright (c) 2012: Scott Jehl, Paul Irish, Nicholas Zakas, David Knight. Dual MIT/BSD license window.matchMedia || (window.matchMedia = function () { 'use strict'; // For browsers that support matchMedium api such as IE 9 and webkit var styleMedia = window.styleMedia || window.media; // For those that don't support matchMedium if (!styleMedia) { var style = document.createElement('style'), script = document.getElementsByTagName('script')[0], info = null; style.type = 'text/css'; style.id = 'matchmediajs-test'; script && script.parentNode && script.parentNode.insertBefore(style, script); // 'style.currentStyle' is used by IE <= 8 and 'window.getComputedStyle' for all other browsers info = 'getComputedStyle' in window && window.getComputedStyle(style, null) || style.currentStyle; styleMedia = { matchMedium: function (media) { var text = '@media ' + media + '{ #matchmediajs-test { width: 1px; } }'; // 'style.styleSheet' is used by IE <= 8 and 'style.textContent' for all other browsers if (style.styleSheet) { style.styleSheet.cssText = text; } else { style.textContent = text; } // Test if media query is true or false return info.width === '1px'; } }; } return function (media) { return { matches: styleMedia.matchMedium(media || 'all'), media: media || 'all' }; }; }()); // Thank you: https://github.com/sindresorhus/query-string function parseStyleToObject(str) { var styleObject = {}; if (typeof str !== 'string') { return styleObject; } str = str.trim().slice(1, -1); // browsers re-quote string style values if (!str) { return styleObject; } styleObject = str.split('&').reduce(function (ret, param) { var parts = param.replace(/\+/g, ' ').split('='); var key = parts[0]; var val = parts[1]; key = decodeURIComponent(key); // missing `=` should be `null`: // http://w3.org/TR/2012/WD-url-20120524/#collect-url-parameters val = val === undefined ? null : decodeURIComponent(val); if (!ret.hasOwnProperty(key)) { ret[key] = val; } else if (Array.isArray(ret[key])) { ret[key].push(val); } else { ret[key] = [ret[key], val]; } return ret; }, {}); return styleObject; } Foundation.MediaQuery = MediaQuery; }(jQuery);