all files / app/core/theming/ fuse-generator.service.js

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(function ()
{
    'use strict';
 
    angular
        .module('app.core')
        .factory('fuseGenerator', fuseGeneratorService);
 
    /** @ngInject */
    function fuseGeneratorService($cookies, $log, fuseTheming)
    {
        // Storage for simplified themes object
        var themes = {};
 
        var service = {
            generate: generate,
            rgba    : rgba
        };
 
        return service;
 
        //////////
 
        /**
         * Generate less variables for each theme from theme's
         * palette by using material color naming conventions
         */
        function generate()
        {
            // Get registered themes and palettes and copy
            // them so we don't modify the original objects
            var registeredThemes = angular.copy(fuseTheming.getRegisteredThemes());
            var registeredPalettes = angular.copy(fuseTheming.getRegisteredPalettes());
 
            // First, create a simplified object that stores
            // all registered themes and their colors
 
            // Iterate through registered themes
            angular.forEach(registeredThemes, function (registeredTheme)
            {
                themes[registeredTheme.name] = {};
 
                // Iterate through color types (primary, accent, warn & background)
                angular.forEach(registeredTheme.colors, function (colorType, colorTypeName)
                {
                    themes[registeredTheme.name][colorTypeName] = {
                        'name'  : colorType.name,
                        'levels': {
                            'default': {
                                'color'    : rgba(registeredPalettes[colorType.name][colorType.hues.default].value),
                                'contrast1': rgba(registeredPalettes[colorType.name][colorType.hues.default].contrast, 1),
                                'contrast2': rgba(registeredPalettes[colorType.name][colorType.hues.default].contrast, 2),
                                'contrast3': rgba(registeredPalettes[colorType.name][colorType.hues.default].contrast, 3),
                                'contrast4': rgba(registeredPalettes[colorType.name][colorType.hues.default].contrast, 4)
                            },
                            'hue1'   : {
                                'color'    : rgba(registeredPalettes[colorType.name][colorType.hues['hue-1']].value),
                                'contrast1': rgba(registeredPalettes[colorType.name][colorType.hues['hue-1']].contrast, 1),
                                'contrast2': rgba(registeredPalettes[colorType.name][colorType.hues['hue-1']].contrast, 2),
                                'contrast3': rgba(registeredPalettes[colorType.name][colorType.hues['hue-1']].contrast, 3),
                                'contrast4': rgba(registeredPalettes[colorType.name][colorType.hues['hue-1']].contrast, 4)
                            },
                            'hue2'   : {
                                'color'    : rgba(registeredPalettes[colorType.name][colorType.hues['hue-2']].value),
                                'contrast1': rgba(registeredPalettes[colorType.name][colorType.hues['hue-2']].contrast, 1),
                                'contrast2': rgba(registeredPalettes[colorType.name][colorType.hues['hue-2']].contrast, 2),
                                'contrast3': rgba(registeredPalettes[colorType.name][colorType.hues['hue-2']].contrast, 3),
                                'contrast4': rgba(registeredPalettes[colorType.name][colorType.hues['hue-2']].contrast, 4)
                            },
                            'hue3'   : {
                                'color'    : rgba(registeredPalettes[colorType.name][colorType.hues['hue-3']].value),
                                'contrast1': rgba(registeredPalettes[colorType.name][colorType.hues['hue-3']].contrast, 1),
                                'contrast2': rgba(registeredPalettes[colorType.name][colorType.hues['hue-3']].contrast, 2),
                                'contrast3': rgba(registeredPalettes[colorType.name][colorType.hues['hue-3']].contrast, 3),
                                'contrast4': rgba(registeredPalettes[colorType.name][colorType.hues['hue-3']].contrast, 4)
                            }
                        }
                    };
                });
            });
 
            // Process themes one more time and then store them in the service for external use
            processAndStoreThemes(themes);
 
            // Iterate through simplified themes
            // object and create style variables
            var styleVars = {};
 
            // Iterate through registered themes
            angular.forEach(themes, function (theme, themeName)
            {
                styleVars = {};
                styleVars['@themeName'] = themeName;
 
                // Iterate through color types (primary, accent, warn & background)
                angular.forEach(theme, function (colorTypes, colorTypeName)
                {
                    // Iterate through color levels (default, hue1, hue2 & hue3)
                    angular.forEach(colorTypes.levels, function (colors, colorLevelName)
                    {
                        // Iterate through color name (color, contrast1, contrast2, contrast3 & contrast4)
                        angular.forEach(colors, function (color, colorName)
                        {
                            styleVars['@' + colorTypeName + ucfirst(colorLevelName) + ucfirst(colorName)] = color;
                        });
                    });
                });
 
                // Render styles
                render(styleVars);
            });
        }
 
        // ---------------------------
        //  INTERNAL HELPER FUNCTIONS
        // ---------------------------
 
        /**
         * Process and store themes for global use
         *
         * @param _themes
         */
        function processAndStoreThemes(_themes)
        {
            // Here we will go through every registered theme one more time
            // and try to simplify their objects as much as possible for
            // easier access to their properties.
            var themes = angular.copy(_themes);
 
            // Iterate through themes
            angular.forEach(themes, function (theme)
            {
                // Iterate through color types (primary, accent, warn & background)
                angular.forEach(theme, function (colorType, colorTypeName)
                {
                    theme[colorTypeName] = colorType.levels;
                    theme[colorTypeName].color = colorType.levels.default.color;
                    theme[colorTypeName].contrast1 = colorType.levels.default.contrast1;
                    theme[colorTypeName].contrast2 = colorType.levels.default.contrast2;
                    theme[colorTypeName].contrast3 = colorType.levels.default.contrast3;
                    theme[colorTypeName].contrast4 = colorType.levels.default.contrast4;
                    delete theme[colorTypeName].default;
                });
            });
 
            // Store themes and set selected theme for the first time
            fuseTheming.setThemesList(themes);
 
            // Remember selected theme.
            var selectedTheme = $cookies.get('selectedTheme');
 
            Iif ( selectedTheme )
            {
                fuseTheming.setActiveTheme(selectedTheme);
            }
            else
            {
                fuseTheming.setActiveTheme('default');
            }
        }
 
 
        /**
         * Render css files
         *
         * @param styleVars
         */
        function render(styleVars)
        {
            var cssTemplate = '/* Content hack because they wont fix */\n/* https://github.com/angular/material/pull/8067 */\n[md-theme="@themeName"] md-content.md-hue-1,\nmd-content.md-@themeName-theme.md-hue-1 {\n    color: @backgroundHue1Contrast1;\n    background-color: @backgroundHue1Color;\n}\n\n[md-theme="@themeName"] md-content.md-hue-2,\nmd-content.md-@themeName-theme.md-hue-2 {\n    color: @backgroundHue2Contrast1;\n    background-color: @backgroundHue2Color;\n}\n\n[md-theme="@themeName"] md-content.md-hue-3,\n md-content.md-@themeName-theme.md-hue-3 {\n    color: @backgroundHue3Contrast1;\n    background-color: @backgroundHue3Color;\n}\n\n/* Text Colors */\n[md-theme="@themeName"] a {\n    color: @accentDefaultColor;\n}\n\n[md-theme="@themeName"] .secondary-text,\n[md-theme="@themeName"] .icon {\n    color: @backgroundDefaultContrast2;\n}\n\n[md-theme="@themeName"] .hint-text,\n[md-theme="@themeName"] .disabled-text {\n    color: @backgroundDefaultContrast3;\n}\n\n[md-theme="@themeName"] .fade-text,\n[md-theme="@themeName"] .divider {\n    color: @backgroundDefaultContrast4;\n}\n\n/* Primary */\n[md-theme="@themeName"] .md-primary-bg {\n    background-color: @primaryDefaultColor;\n    color: @primaryDefaultContrast1;\n}\n\n[md-theme="@themeName"] .md-primary-bg .secondary-text,\n[md-theme="@themeName"] .md-primary-bg .icon {\n    color: @primaryDefaultContrast2;\n}\n\n[md-theme="@themeName"] .md-primary-bg .hint-text,\n[md-theme="@themeName"] .md-primary-bg .disabled-text {\n    color: @primaryDefaultContrast3;\n}\n\n[md-theme="@themeName"] .md-primary-bg .fade-text,\n[md-theme="@themeName"] .md-primary-bg .divider {\n    color: @primaryDefaultContrast4;\n}\n\n/* Primary, Hue-1 */\n[md-theme="@themeName"] .md-primary-bg.md-hue-1 {\n    background-color: @primaryHue1Color;\n    color: @primaryHue1Contrast1;\n}\n\n[md-theme="@themeName"] .md-primary-bg.md-hue-1 .secondary-text,\n[md-theme="@themeName"] .md-primary-bg.md-hue-1 .icon {\n    color: @primaryHue1Contrast2;\n}\n\n[md-theme="@themeName"] .md-primary-bg.md-hue-1 .hint-text,\n[md-theme="@themeName"] .md-primary-bg.md-hue-1 .disabled-text {\n    color: @primaryHue1Contrast3;\n}\n\n[md-theme="@themeName"] .md-primary-bg.md-hue-1 .fade-text,\n[md-theme="@themeName"] .md-primary-bg.md-hue-1 .divider {\n    color: @primaryHue1Contrast4;\n}\n\n/* Primary, Hue-2 */\n[md-theme="@themeName"] .md-primary-bg.md-hue-2 {\n    background-color: @primaryHue2Color;\n    color: @primaryHue2Contrast1;\n}\n\n[md-theme="@themeName"] .md-primary-bg.md-hue-2 .secondary-text,\n[md-theme="@themeName"] .md-primary-bg.md-hue-2 .icon {\n    color: @primaryHue2Contrast2;\n}\n\n[md-theme="@themeName"] .md-primary-bg.md-hue-2 .hint-text,\n[md-theme="@themeName"] .md-primary-bg.md-hue-2 .disabled-text {\n    color: @primaryHue2Contrast3;\n}\n\n[md-theme="@themeName"] .md-primary-bg.md-hue-2 .fade-text,\n[md-theme="@themeName"] .md-primary-bg.md-hue-2 .divider {\n    color: @primaryHue2Contrast4;\n}\n\n/* Primary, Hue-3 */\n[md-theme="@themeName"] .md-primary-bg.md-hue-3 {\n    background-color: @primaryHue3Color;\n    color: @primaryHue3Contrast1;\n}\n\n[md-theme="@themeName"] .md-primary-bg.md-hue-3 .secondary-text,\n[md-theme="@themeName"] .md-primary-bg.md-hue-3 .icon {\n    color: @primaryHue3Contrast1;\n}\n\n[md-theme="@themeName"] .md-primary-bg.md-hue-3 .hint-text,\n[md-theme="@themeName"] .md-primary-bg.md-hue-3 .disabled-text {\n    color: @primaryHue3Contrast3;\n}\n\n[md-theme="@themeName"] .md-primary-bg.md-hue-3 .fade-text,\n[md-theme="@themeName"] .md-primary-bg.md-hue-3 .divider {\n    color: @primaryHue3Contrast4;\n}\n\n/* Primary foreground */\n[md-theme="@themeName"] .md-primary-fg {\n    color: @primaryDefaultColor !important;\n}\n\n/* Primary foreground, Hue-1 */\n[md-theme="@themeName"] .md-primary-fg.md-hue-1 {\n    color: @primaryHue1Color !important;\n}\n\n/* Primary foreground, Hue-2 */\n[md-theme="@themeName"] .md-primary-fg.md-hue-2 {\n    color: @primaryHue2Color !important;\n}\n\n/* Primary foreground, Hue-3 */\n[md-theme="@themeName"] .md-primary-fg.md-hue-3 {\n    color: @primaryHue3Color !important;\n}\n\n/* Accent */\n[md-theme="@themeName"] .md-accent-bg {\n    background-color: @accentDefaultColor;\n    color: @accentDefaultContrast1;\n}\n\n[md-theme="@themeName"] .md-accent-bg .secondary-text,\n[md-theme="@themeName"] .md-accent-bg .icon {\n    color: @accentDefaultContrast2;\n}\n\n[md-theme="@themeName"] .md-accent-bg .hint-text,\n[md-theme="@themeName"] .md-accent-bg .disabled-text {\n    color: @accentDefaultContrast3;\n}\n\n[md-theme="@themeName"] .md-accent-bg .fade-text,\n[md-theme="@themeName"] .md-accent-bg .divider {\n    color: @accentDefaultContrast4;\n}\n\n/* Accent, Hue-1 */\n[md-theme="@themeName"] .md-accent-bg.md-hue-1 {\n    background-color: @accentHue1Color;\n    color: @accentHue1Contrast1;\n}\n\n[md-theme="@themeName"] .md-accent-bg.md-hue-1 .secondary-text,\n[md-theme="@themeName"] .md-accent-bg.md-hue-1 .icon {\n    color: @accentHue1Contrast2;\n}\n\n[md-theme="@themeName"] .md-accent-bg.md-hue-1 .hint-text,\n[md-theme="@themeName"] .md-accent-bg.md-hue-1 .disabled-text {\n    color: @accentHue1Contrast3;\n}\n\n[md-theme="@themeName"] .md-accent-bg.md-hue-1 .fade-text,\n[md-theme="@themeName"] .md-accent-bg.md-hue-1 .divider {\n    color: @accentHue1Contrast4;\n}\n\n/* Accent, Hue-2 */\n[md-theme="@themeName"] .md-accent-bg.md-hue-2 {\n    background-color: @accentHue2Color;\n    color: @accentHue2Contrast1;\n}\n\n[md-theme="@themeName"] .md-accent-bg.md-hue-2 .secondary-text,\n[md-theme="@themeName"] .md-accent-bg.md-hue-2 .icon {\n    color: @accentHue2Contrast2;\n}\n\n[md-theme="@themeName"] .md-accent-bg.md-hue-2 .hint-text,\n[md-theme="@themeName"] .md-accent-bg.md-hue-2 .disabled-text {\n    color: @accentHue2Contrast3;\n}\n\n[md-theme="@themeName"] .md-accent-bg.md-hue-2 .fade-text,\n[md-theme="@themeName"] .md-accent-bg.md-hue-2 .divider {\n    color: @accentHue2Contrast4;\n}\n\n/* Accent, Hue-3 */\n[md-theme="@themeName"] .md-accent-bg.md-hue-3 {\n    background-color: @accentHue3Color;\n    color: @accentHue3Contrast1;\n}\n\n[md-theme="@themeName"] .md-accent-bg.md-hue-3 .secondary-text,\n[md-theme="@themeName"] .md-accent-bg.md-hue-3 .icon {\n    color: @accentHue3Contrast1;\n}\n\n[md-theme="@themeName"] .md-accent-bg.md-hue-3 .hint-text,\n[md-theme="@themeName"] .md-accent-bg.md-hue-3 .disabled-text {\n    color: @accentHue3Contrast3;\n}\n\n[md-theme="@themeName"] .md-accent-bg.md-hue-3 .fade-text,\n[md-theme="@themeName"] .md-accent-bg.md-hue-3 .divider {\n    color: @accentHue3Contrast4;\n}\n\n/* Accent foreground */\n[md-theme="@themeName"] .md-accent-fg {\n    color: @accentDefaultColor !important;\n}\n\n/* Accent foreground, Hue-1 */\n[md-theme="@themeName"] .md-accent-fg.md-hue-1 {\n    color: @accentHue1Color !important;\n}\n\n/* Accent foreground, Hue-2 */\n[md-theme="@themeName"] .md-accent-fg.md-hue-2 {\n    color: @accentHue2Color !important;\n}\n\n/* Accent foreground, Hue-3 */\n[md-theme="@themeName"] .md-accent-fg.md-hue-3 {\n    color: @accentHue3Color !important;\n}\n\n/* Warn */\n[md-theme="@themeName"] .md-warn-bg {\n    background-color: @warnDefaultColor;\n    color: @warnDefaultContrast1;\n}\n\n[md-theme="@themeName"] .md-warn-bg .secondary-text,\n[md-theme="@themeName"] .md-warn-bg .icon {\n    color: @warnDefaultContrast2;\n}\n\n[md-theme="@themeName"] .md-warn-bg .hint-text,\n[md-theme="@themeName"] .md-warn-bg .disabled-text {\n    color: @warnDefaultContrast3;\n}\n\n[md-theme="@themeName"] .md-warn-bg .fade-text,\n[md-theme="@themeName"] .md-warn-bg .divider {\n    color: @warnDefaultContrast4;\n}\n\n/* Warn, Hue-1 */\n[md-theme="@themeName"] .md-warn-bg.md-hue-1 {\n    background-color: @warnHue1Color;\n    color: @warnHue1Contrast1;\n}\n\n[md-theme="@themeName"] .md-warn-bg.md-hue-1 .secondary-text,\n[md-theme="@themeName"] .md-warn-bg.md-hue-1 .icon {\n    color: @warnHue1Contrast2;\n}\n\n[md-theme="@themeName"] .md-warn-bg.md-hue-1 .hint-text,\n[md-theme="@themeName"] .md-warn-bg.md-hue-1 .disabled-text {\n    color: @warnHue1Contrast3;\n}\n\n[md-theme="@themeName"] .md-warn-bg.md-hue-1 .fade-text,\n[md-theme="@themeName"] .md-warn-bg.md-hue-1 .divider {\n    color: @warnHue1Contrast4;\n}\n\n/* Warn, Hue-2 */\n[md-theme="@themeName"] .md-warn-bg.md-hue-2 {\n    background-color: @warnHue2Color;\n    color: @warnHue2Contrast1;\n}\n\n[md-theme="@themeName"] .md-warn-bg.md-hue-2 .secondary-text,\n[md-theme="@themeName"] .md-warn-bg.md-hue-2 .icon {\n    color: @warnHue2Contrast2;\n}\n\n[md-theme="@themeName"] .md-warn-bg.md-hue-2 .hint-text,\n[md-theme="@themeName"] .md-warn-bg.md-hue-2 .disabled-text {\n    color: @warnHue2Contrast3;\n}\n\n[md-theme="@themeName"] .md-warn-bg.md-hue-2 .fade-text,\n[md-theme="@themeName"] .md-warn-bg.md-hue-2 .divider {\n    color: @warnHue2Contrast4;\n}\n\n/* Warn, Hue-3 */\n[md-theme="@themeName"] .md-warn-bg.md-hue-3 {\n    background-color: @warnHue3Color;\n    color: @warnHue3Contrast1;\n}\n\n[md-theme="@themeName"] .md-warn-bg.md-hue-3 .secondary-text,\n[md-theme="@themeName"] .md-warn-bg.md-hue-3 .icon {\n    color: @warnHue3Contrast1;\n}\n\n[md-theme="@themeName"] .md-warn-bg.md-hue-3 .hint-text,\n[md-theme="@themeName"] .md-warn-bg.md-hue-3 .disabled-text {\n    color: @warnHue3Contrast3;\n}\n\n[md-theme="@themeName"] .md-warn-bg.md-hue-3 .fade-text,\n[md-theme="@themeName"] .md-warn-bg.md-hue-3 .divider {\n    color: @warnHue3Contrast4;\n}\n\n/* Warn foreground */\n[md-theme="@themeName"] .md-warn-fg {\n    color: @warnDefaultColor !important;\n}\n\n/* Warn foreground, Hue-1 */\n[md-theme="@themeName"] .md-warn-fg.md-hue-1 {\n    color: @warnHue1Color !important;\n}\n\n/* Warn foreground, Hue-2 */\n[md-theme="@themeName"] .md-warn-fg.md-hue-2 {\n    color: @warnHue2Color !important;\n}\n\n/* Warn foreground, Hue-3 */\n[md-theme="@themeName"] .md-warn-fg.md-hue-3 {\n    color: @warnHue3Color !important;\n}\n\n/* Background */\n[md-theme="@themeName"] .md-background-bg {\n    background-color: @backgroundDefaultColor;\n    color: @backgroundDefaultContrast1;\n}\n\n[md-theme="@themeName"] .md-background-bg .secondary-text,\n[md-theme="@themeName"] .md-background-bg .icon {\n    color: @backgroundDefaultContrast2;\n}\n\n[md-theme="@themeName"] .md-background-bg .hint-text,\n[md-theme="@themeName"] .md-background-bg .disabled-text {\n    color: @backgroundDefaultContrast3;\n}\n\n[md-theme="@themeName"] .md-background-bg .fade-text,\n[md-theme="@themeName"] .md-background-bg .divider {\n    color: @backgroundDefaultContrast4;\n}\n\n/* Background, Hue-1 */\n[md-theme="@themeName"] .md-background-bg.md-hue-1 {\n    background-color: @backgroundHue1Color;\n    color: @backgroundHue1Contrast1;\n}\n\n[md-theme="@themeName"] .md-background-bg.md-hue-1 .secondary-text,\n[md-theme="@themeName"] .md-background-bg.md-hue-1 .icon {\n    color: @backgroundHue1Contrast2;\n}\n\n[md-theme="@themeName"] .md-background-bg.md-hue-1 .hint-text,\n[md-theme="@themeName"] .md-background-bg.md-hue-1 .disabled-text {\n    color: @backgroundHue1Contrast3;\n}\n\n[md-theme="@themeName"] .md-background-bg.md-hue-1 .fade-text,\n[md-theme="@themeName"] .md-background-bg.md-hue-1 .divider {\n    color: @backgroundHue1Contrast4;\n}\n\n/* Background, Hue-2 */\n[md-theme="@themeName"] .md-background-bg.md-hue-2 {\n    background-color: @backgroundHue2Color;\n    color: @backgroundHue2Contrast1;\n}\n\n[md-theme="@themeName"] .md-background-bg.md-hue-2 .secondary-text,\n[md-theme="@themeName"] .md-background-bg.md-hue-2 .icon {\n    color: @backgroundHue2Contrast2;\n}\n\n[md-theme="@themeName"] .md-background-bg.md-hue-2 .hint-text,\n[md-theme="@themeName"] .md-background-bg.md-hue-2 .disabled-text {\n    color: @backgroundHue2Contrast3;\n}\n\n[md-theme="@themeName"] .md-background-bg.md-hue-2 .fade-text,\n[md-theme="@themeName"] .md-background-bg.md-hue-2 .divider {\n    color: @backgroundHue2Contrast4;\n}\n\n/* Background, Hue-3 */\n[md-theme="@themeName"] .md-background-bg.md-hue-3 {\n    background-color: @backgroundHue3Color;\n    color: @backgroundHue3Contrast1;\n}\n\n[md-theme="@themeName"] .md-background-bg.md-hue-3 .secondary-text,\n[md-theme="@themeName"] .md-background-bg.md-hue-3 .icon {\n    color: @backgroundHue3Contrast1;\n}\n\n[md-theme="@themeName"] .md-background-bg.md-hue-3 .hint-text,\n[md-theme="@themeName"] .md-background-bg.md-hue-3 .disabled-text {\n    color: @backgroundHue3Contrast3;\n}\n\n[md-theme="@themeName"] .md-background-bg.md-hue-3 .fade-text,\n[md-theme="@themeName"] .md-background-bg.md-hue-3 .divider {\n    color: @backgroundHue3Contrast4;\n}\n\n/* Background foreground */\n[md-theme="@themeName"] .md-background-fg {\n    color: @backgroundDefaultColor !important;\n}\n\n/* Background foreground, Hue-1 */\n[md-theme="@themeName"] .md-background-fg.md-hue-1 {\n    color: @backgroundHue1Color !important;\n}\n\n/* Background foreground, Hue-2 */\n[md-theme="@themeName"] .md-background-fg.md-hue-2 {\n    color: @backgroundHue2Color !important;\n}\n\n/* Background foreground, Hue-3 */\n[md-theme="@themeName"] .md-background-fg.md-hue-3 {\n    color: @backgroundHue3Color !important;\n}';
 
            var regex = new RegExp(Object.keys(styleVars).join('|'), 'gi');
            var css = cssTemplate.replace(regex, function (matched)
            {
                return styleVars[matched];
            });
 
            var headEl = angular.element('head');
            var styleEl = angular.element('<style type="text/css"></style>');
            styleEl.html(css);
            headEl.append(styleEl);
        }
 
        /**
         * Convert color array to rgb/rgba
         * Also apply contrasts if needed
         *
         * @param color
         * @param _contrastLevel
         * @returns {string}
         */
        function rgba(color, _contrastLevel)
        {
            var contrastLevel = _contrastLevel || false;
 
            // Convert 255,255,255,0.XX to 255,255,255
            // According to Google's Material design specs, white primary
            // text must have opacity of 1 and we will fix that here
            // because Angular Material doesn't care about that spec
            if ( color.length === 4 && color[0] === 255 && color[1] === 255 && color[2] === 255 )
            {
                color.splice(3, 4);
            }
 
            // If contrast level provided, apply it to the current color
            if ( contrastLevel )
            {
                color = applyContrast(color, contrastLevel);
            }
 
            // Convert color array to color string (rgb/rgba)
            if ( color.length === 3 )
            {
                return 'rgb(' + color.join(',') + ')';
            }
            else Eif ( color.length === 4 )
            {
                return 'rgba(' + color.join(',') + ')';
            }
            else
            {
                $log.error('Invalid number of arguments supplied in the color array: ' + color.length + '\n' + 'The array must have 3 or 4 colors.');
            }
        }
 
        /**
         * Apply given contrast level to the given color
         *
         * @param color
         * @param contrastLevel
         */
        function applyContrast(color, contrastLevel)
        {
            var contrastLevels = {
                'white': {
                    '1': '1',
                    '2': '0.7',
                    '3': '0.3',
                    '4': '0.12'
                },
                'black': {
                    '1': '0.87',
                    '2': '0.54',
                    '3': '0.26',
                    '4': '0.12'
                }
            };
 
            // If white
            if ( color[0] === 255 && color[1] === 255 && color[2] === 255 )
            {
                color[3] = contrastLevels.white[contrastLevel];
            }
            // If black
            else Eif ( color[0] === 0 && color[1] === 0 && color[2] === 0 )
            {
                color[3] = contrastLevels.black[contrastLevel];
            }
 
            return color;
        }
 
        /**
         * Uppercase first
         */
        function ucfirst(string)
        {
            return string.charAt(0).toUpperCase() + string.slice(1);
        }
    }
 
})();