main.js

'use strict';

// Google Analytics
var googleAnalyticsService = analytics.getService('ice_cream_app');
var googleAnalytics = googleAnalyticsService.getTracker('UA-32728876-6');
var googleAnalyticsConfig = false;
googleAnalyticsService.getConfig().addCallback(function (config) {
    googleAnalyticsConfig = config;
});

$(document).ready(function () {
    // translate to user-selected language
    localize();

    // alternative - window.navigator.appVersion.match(/Chrome\/([0-9.]*)/)[1];
    GUI.log('Running - OS: <strong>' + GUI.operating_system + '</strong>, ' +
        'Chrome: <strong>' + window.navigator.appVersion.replace(/.*Chrome\/([0-9.]*).*/, "$1") + '</strong>, ' +
        'Configurator: <strong>' + chrome.runtime.getManifest().version + '</strong>');

    $('#status-bar .version').text(chrome.runtime.getManifest().version);

    // notification messages for various operating systems
    switch (GUI.operating_system) {
        case 'Windows':
            break;
        case 'MacOS':
            // var main_chromium_version = window.navigator.appVersion.replace(/.*Chrome\/([0-9.]*).*/,"$1").split('.')[0];
            break;
        case 'ChromeOS':
            break;
        case 'Linux':
            break;
        case 'UNIX':
            break;
    }

    // check release time to inform people in case they are running old release
    if (CONFIGURATOR.releaseDate > (new Date().getTime() - (86400000 * 60))) { // 1 day = 86400000 miliseconds, * 60 = 2 month window
        console.log('Application version is valid for another: ' + Math.round((CONFIGURATOR.releaseDate - (new Date().getTime() - (86400000 * 60))) / 86400000) + ' days');
    } else {
        console.log('Application version expired');
        GUI.log('You\'re using an old version of ' + chrome.runtime.getManifest().name + '. Please update so you can benefit from recently added features and bugfixes.');
    }

    // log webgl capability
    // it would seem the webgl "enabling" through advanced settings will be ignored in the future
    // and webgl will be supported if gpu supports it by default (canary 40.0.2175.0), keep an eye on this one
    var canvas = document.createElement('canvas');
    if (window.WebGLRenderingContext && (canvas.getContext('webgl') || canvas.getContext('experimental-webgl'))) {
        googleAnalytics.sendEvent('Capability', 'WebGL', 'true');
    } else {
        googleAnalytics.sendEvent('Capability', 'WebGL', 'false');
    }

    // log library versions in console to make version tracking easier
    console.log('Libraries: jQuery - ' + $.fn.jquery + ', d3 - ' + d3.version + ', three.js - ' + THREE.REVISION);

    // Tabs
    var ui_tabs = $('#tabs > ul');
    $('a', ui_tabs).click(function () {
        if ($(this).parent().hasClass('active') == false && !GUI.tab_switch_in_progress) { // only initialize when the tab isn't already active
            var self = this,
                tab = $(self).parent().prop('class');

            // if there is no active connection, return
            if (!CONFIGURATOR.connectionValid) {
                GUI.log('You need to <strong>connect</strong> before you can view any of the tabs');
                return;
            }

            GUI.tab_switch_in_progress = true;

            GUI.tab_switch_cleanup(function () {
                // disable previously active tab highlight
                $('li', ui_tabs).removeClass('active');

                // Highlight selected tab
                $(self).parent().addClass('active');

                // detach listeners and remove element data
                var content = $('#content');
                content.empty();

                // display loading screen
                $('#cache .data-loading').clone().appendTo(content);

                function content_ready() {
                    GUI.tab_switch_in_progress = false;
                }

                switch (tab) {
                    case 'tab_setup':
                        TABS.setup.initialize(content_ready);
                        break;
                    case 'tab_configuration':
                        TABS.configuration.initialize(content_ready);
                        break;
                    case 'tab_pid_tuning':
                        TABS.pid_tuning.initialize(content_ready);
                        break;
                    case 'tab_receiver':
                        TABS.receiver.initialize(content_ready);
                        break;
                    case 'tab_modes':
                        TABS.modes.initialize(content_ready);
                        break;
                    case 'tab_servos':
                        TABS.servos.initialize(content_ready);
                        break;
                    case 'tab_gps':
                        TABS.gps.initialize(content_ready);
                        break;
                    case 'tab_motors':
                        TABS.motors.initialize(content_ready);
                        break;
                    case 'tab_sensors':
                        TABS.sensors.initialize(content_ready);
                        break;
                    case 'tab_logging':
                        TABS.logging.initialize(content_ready);
                        break;
                    case 'tab_cli':
                        TABS.cli.initialize(content_ready);
                        break;

                    default:
                        console.log('Tab not found');
                }
            });
        }
    });

    TABS.landing.initialize();

    // options
    $('a#options').click(function () {
        var el = $(this);

        if (!el.hasClass('active')) {
            el.addClass('active');
            el.after('<div id="options-window"></div>');

            $('div#options-window').load('./tabs/options.html', function () {
                googleAnalytics.sendAppView('Options');

                // translate to user-selected language
                localize();

                // if notifications are enabled, or wasn't set, check the notifications checkbox
                chrome.storage.local.get('update_notify', function (result) {
                    if (typeof result.update_notify === 'undefined' || result.update_notify) {
                        $('div.notifications input').prop('checked', true);
                    }
                });

                $('div.notifications input').change(function () {
                    var check = $(this).is(':checked');
                    googleAnalytics.sendEvent('Settings', 'Notifications', check);

                    chrome.storage.local.set({'update_notify': check});
                });

                // if tracking is enabled, check the statistics checkbox
                if (googleAnalyticsConfig.isTrackingPermitted()) {
                    $('div.statistics input').prop('checked', true);
                }

                $('div.statistics input').change(function () {
                    var check = $(this).is(':checked');
                    googleAnalytics.sendEvent('Settings', 'GoogleAnalytics', check);
                    googleAnalyticsConfig.setTrackingPermitted(check);
                });

                function close_and_cleanup(e) {
                    if (e.type == 'click' && !$.contains($('div#options-window')[0], e.target) || e.type == 'keyup' && e.keyCode == 27) {
                        $(document).unbind('click keyup', close_and_cleanup);

                        $('div#options-window').slideUp(250, function () {
                            el.removeClass('active');
                            $(this).empty().remove();
                        });
                    }
                }

                $(document).bind('click keyup', close_and_cleanup);

                $(this).slideDown(250);
            });
        }
    });

    // listen to all input change events and adjust the value within limits if necessary
    $("#content").on('focus', 'input[type="number"]', function () {
        var element = $(this),
            val = element.val();

        if (!isNaN(val)) {
            element.data('previousValue', parseFloat(val));
        }
    });

    $("#content").on('keydown', 'input[type="number"]', function (e) {
        // whitelist all that we need for numeric control
        var whitelist = [
            96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, // numpad and standard number keypad
            109, 189, // minus on numpad and in standard keyboard
            8, 46, 9, // backspace, delete, tab
            190, 110, // decimal point
            37, 38, 39, 40, 13 // arrows and enter
        ];

        if (whitelist.indexOf(e.keyCode) == -1) {
            e.preventDefault();
        }
    });

    $("#content").on('change', 'input[type="number"]', function () {
        var element = $(this),
            min = parseFloat(element.prop('min')),
            max = parseFloat(element.prop('max')),
            step = parseFloat(element.prop('step')),
            val = parseFloat(element.val()),
            decimal_places;

        // only adjust minimal end if bound is set
        if (element.prop('min')) {
            if (val < min) {
                element.val(min);
                val = min;
            }
        }

        // only adjust maximal end if bound is set
        if (element.prop('max')) {
            if (val > max) {
                element.val(max);
                val = max;
            }
        }

        // if entered value is illegal use previous value instead
        if (isNaN(val)) {
            element.val(element.data('previousValue'));
            val = element.data('previousValue');
        }

        // if step is not set or step is int and value is float use previous value instead
        if (isNaN(step) || step % 1 === 0) {
            if (val % 1 !== 0) {
                element.val(element.data('previousValue'));
                val = element.data('previousValue');
            }
        }

        // if step is set and is float and value is int, convert to float, keep decimal places in float according to step *experimental*
        if (!isNaN(step) && step % 1 !== 0) {
            decimal_places = String(step).split('.')[1].length;

            if (val % 1 === 0) {
                element.val(val.toFixed(decimal_places));
            } else if (String(val).split('.')[1].length != decimal_places) {
                element.val(val.toFixed(decimal_places));
            }
        }
    });
});

function catch_startup_time(startTime) {
    var endTime = new Date().getTime(),
        timeSpent = endTime - startTime;

    googleAnalytics.sendTiming('Load Times', 'Application Startup', timeSpent);
}

function microtime() {
    var now = new Date().getTime() / 1000;

    return now;
}

function millitime() {
    var now = new Date().getTime();

    return now;
}

function bytesToSize(bytes) {
    if (bytes < 1024) {
        bytes = bytes + ' Bytes';
    } else if (bytes < 1048576) {
        bytes = (bytes / 1024).toFixed(3) + ' KB';
    } else if (bytes < 1073741824) {
        bytes = (bytes / 1048576).toFixed(3) + ' MB';
    } else {
        bytes = (bytes / 1073741824).toFixed(3) + ' GB';
    }

    return bytes;
}

Number.prototype.clamp = function(min, max) {
    return Math.min(Math.max(this, min), max);
};