Last Updated: February 25, 2016
·
431
· marbio

what-viewport.js

A small javascript object that returns information about the device such as the type and orientation.

The main scope of this module is to determine the width of the viewport (cross-browser) and offers conditional methods to figure out which device we are using.

github.com/marbio/what-viewport.js

(function() {

if ( typeof $Modules === 'undefined') {
    $Modules = {}
}

$Modules.whatViewport = function() {

    var w = window, a = 'inner', ww = '', wh = '', mode = '', options = {
        breakpoints : {
            mobile : 767,
            tabletLandscapeDown : 767,
            tabletLandscapeUp : 1279,
            tabletPortraitDown : 767,
            tabletPortraitUp : 1001,
            desktop : 1279,
            desktopWide : 1407
        },
        mode : {
            landscape : 'landscape',
            portrait : 'portrait'
        }

    };

    var init = function(params) {

        if (!('innerWidth' in window )) {
            a = 'client';
            w = document.documentElement || document.body;
        }

        ww = w[a + 'Width'];
        wh = w[a + 'Height'];

        mode = getOrientation();

    }, updateDimensions = function() {

        ww = w[a + 'Width'];
        wh = w[a + 'Height'];

        mode = getOrientation();

    }, getOrientation = function() {

        if (wh > ww)
            mode = options.mode.portrait;
        else
            mode = options.mode.landscape;

        return mode;

    }, isMobile = function() {

        return (ww <= options.breakpoints.mobile );

    }, isMobileLandscape = function() {

        return (ww <= options.breakpoints.mobile && mode == options.mode.landscape );

    }, isMobilePortrait = function() {

        return (ww <= options.breakpoints.mobile && mode == options.mode.portrait );

    }, isTabletLandscape = function() {

        return (ww > options.breakpoints.mobile && ww < options.breakpoints.tabletLandscapeUp && mode == options.mode.landscape );

    }, isTabletPortrait = function() {

        return (ww > options.breakpoints.mobile && ww < options.breakpoints.tabletPortraitUp && mode == options.mode.portrait );

    }, isMobileLandscape = function() {

        return (ww < options.breakpoints.mobile && mode == options.mode.landscape );

    }, isMobilePortrait = function() {

        return (ww < options.breakpoints.mobile && mode == options.mode.portrait );

    }, isDesktop = function() {

        return (ww > options.breakpoints.desktop );

    }, isWideDesktop = function() {

        return (ww > options.breakpoints.desktopWide );

    };

    var whatViewportObj = {

        init : init,
        getOrientation : getOrientation,
        isMobile : isMobile,
        isMobilePortrait : isMobilePortrait,
        isMobileLandscape : isMobileLandscape,
        isTabletLandscape : isTabletLandscape,
        isTabletPortrait : isTabletPortrait,
        isDesktop : isDesktop,
        isWideDesktop : isWideDesktop,
        updateDimensions : updateDimensions

    };

    return whatViewportObj;

}();

})();