mirror of
https://github.com/McShelby/hugo-theme-relearn.git
synced 2025-03-19 07:39:31 +00:00
381 lines
19 KiB
JavaScript
381 lines
19 KiB
JavaScript
// we need to load this script in the html head to avoid flickering
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// on page load if the user has selected a non default variant
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var variants = {
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variant: '',
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variants: [],
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customvariant: 'my-variant',
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init: function( variants ){
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this.variants = variants;
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var variant = window.localStorage.getItem( 'variant' ) || ( this.variants.length ? this.variants[0] : '' );
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this.changeVariant( variant );
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document.addEventListener( 'readystatechange', function(){
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if( document.readyState == 'interactive' ){
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this.markSelectedVariant( this.getVariant() );
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}
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}.bind( this ) );
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},
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parseVariantnameFromFilename: function ( s ){
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if( !s || !s.match ){
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return '';
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}
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var matches = s.match(/^.*\/?theme-([^\/]*?)\.css.*$/);
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var variant = matches && matches.length == 2 ? matches[ 1 ] : '';
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return variant;
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},
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getVariant: function(){
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return this.variant;
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},
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setVariant: function( variant ){
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this.variant = variant;
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window.localStorage.setItem( 'variant', variant );
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},
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markSelectedVariant: function( variant ){
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var select = document.querySelector( '#select-variant' );
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if( !select ){
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return;
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}
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if( select.value != variant ){
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select.value = variant;
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}
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},
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changeVariant: function( variant ){
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if( this.variants.indexOf( variant ) < 0 ){
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variant = this.variants.length ? this.variants[ 0 ] : '';
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}
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this.setVariant( variant );
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if( !variant ){
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return;
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}
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var link = document.querySelector( '#variant-style' );
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if( !link ){
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return;
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}
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var old_path = link.getAttribute( 'href' );
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var new_path = old_path.replace( /^(.*\/theme-).*?(\.css.*)$/, '$1' + variant + '$2' );
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if( old_path != new_path ){
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link.setAttribute( 'href', new_path );
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this.markSelectedVariant( variant );
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// remove selection, because if some uses an arrow navigation"
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// by pressing the left or right cursor key, we will automatically
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// select a different style
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if( document.activeElement ){
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document.activeElement.blur();
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}
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}
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},
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generator: function( vargenerator, vardownload ){
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var graphDefinition = this.generateGraph();
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var element = document.querySelector( vargenerator );
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element.innerHTML = graphDefinition;
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var interval_id = setInterval( function(){
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if( document.querySelectorAll( vargenerator + '.mermaid > svg' ).length ){
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clearInterval( interval_id );
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this.styleGraph();
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}
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}.bind( this ), 100 );
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var btn = document.querySelector( vardownload );
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btn.addEventListener('click', this.getStylesheet.bind( this ) );
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},
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download: function(data, mimetype, filename){
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var blob = new Blob([data], { type: mimetype });
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var url = window.URL.createObjectURL(blob);
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var a = document.createElement('a');
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a.setAttribute('href', url);
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a.setAttribute('download', filename);
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a.click();
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},
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getStylesheet: function(){
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this.download( this.generateStylesheet(), 'text/css', 'theme-' + this.customvariant + '.css' );
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},
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adjustCSSRules: function(selector, props, sheets){
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// get stylesheet(s)
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if (!sheets) sheets = [...document.styleSheets];
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else if (sheets.sup){ // sheets is a string
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let absoluteURL = new URL(sheets, document.baseURI).href;
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sheets = [...document.styleSheets].filter(i => i.href == absoluteURL);
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}
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else sheets = [sheets]; // sheets is a stylesheet
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// CSS (& HTML) reduce spaces in selector to one.
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selector = selector.replace(/\s+/g, ' ');
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const findRule = s => [...s.cssRules].reverse().find(i => i.selectorText == selector)
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let rule = sheets.map(findRule).filter(i=>i).pop()
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const propsArr = props.sup
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? props.split(/\s*;\s*/).map(i => i.split(/\s*:\s*/)) // from string
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: Object.entries(props); // from Object
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if (rule) for (let [prop, val] of propsArr){
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// rule.style[prop] = val; is against the spec, and does not support !important.
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rule.style.setProperty(prop, ...val.split(/ *!(?=important)/));
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}
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else {
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sheet = sheets.pop();
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if (!props.sup) props = propsArr.reduce((str, [k, v]) => `${str}; ${k}: ${v}`, '');
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sheet.insertRule(`${selector} { ${props} }`, sheet.cssRules.length);
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}
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},
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normalizeColor: function( c ){
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if( !c || !c.trim ){
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return c;
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}
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c = c.trim();
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c = c.replace( /\s*\(\s*/, "( " );
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c = c.replace( /\s*\)\s*/, " )" );
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c = c.replace( /\s*,\s*/, ", " );
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c = c.replace( /0*\./, "." );
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c = c.replace( / +/, " " );
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return c;
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},
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getColorValue: function( c ){
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return this.normalizeColor( getComputedStyle( document.documentElement ).getPropertyValue( '--INTERNAL-'+c ) );
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},
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changeColor: function( c ){
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var style = null;
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var variant = this.variant;
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for( var n = 0; n < document.styleSheets.length; ++n ){
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if( variant = this.parseVariantnameFromFilename( document.styleSheets[n].href ) ){
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var s = document.styleSheets[n];
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for( var m = 0; m < s.rules.length; ++m ){
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if( s.rules[m].selectorText == ':root' ){
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style = s.rules[m].style;
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break;
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}
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}
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break;
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}
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}
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if( !style ){
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alert( 'Theme stylesheet for variant "' + variant + '" not set or found' );
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return;
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}
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var e = this.findColor( c );
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var p = this.normalizeColor( style.getPropertyValue( '--'+c ) ).replace( '--INTERNAL-', '--' );
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var f = this.getColorValue( e.fallback );
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var v = this.getColorValue( e.name );
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if( v == f || v == this.normalizeColor(e.default) ){
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v = '';
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}
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if( p ){
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v = p;
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}
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var t = c + '\n\n' + e.tooltip + '\n';
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if( e.fallback ){
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t += '\nInherits value "' + f + '" from ' + e.fallback + ' if not set\n';
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}
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if( e.default ){
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t += '\nDefaults to value "' + this.normalizeColor(e.default) + '" if not set\n';
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}
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var n = prompt( t, v );
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if( n ){
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n = this.normalizeColor( n ).replace( '--INTERNAL-', '--' ).replace( '--', '--INTERNAL-' );
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style.setProperty( '--'+c, n );
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}
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else if( n !== null){
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style.removeProperty( '--'+c );
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}
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},
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findColor: function( name ){
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var f = this.variantvariables.find( function( x ){
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return x.name == name;
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});
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return f;
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},
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generateColorVariable: function( e ){
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var v = '';
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var gen = true;
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if( e.fallback ){
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f = this.findColor( e.fallback );
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gen = this.getColorValue(f.name) != this.getColorValue(e.name);
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}
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else if( e.default ){
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gen = this.normalizeColor(e.default) != this.getColorValue(e.name);
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}
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if( gen ){
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v += ' --' + e.name + ': ' + this.getColorValue(e.name) + '; /* ' + e.tooltip + ' */\n';
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}
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return v;
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},
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generateStylesheet: function(){
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var style =
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'/* ' + this.customvariant + ' */\n' +
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':root {\n' +
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this.variantvariables.sort( function( l, r ){ return l.name.localeCompare(r.name); } ).reduce( function( a, e ){ return a + this.generateColorVariable( e ); }.bind( this ), '' ) +
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'}\n';
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return style;
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},
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styleGraphGroup: function( selector, colorvar ){
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this.adjustCSSRules( '#body svg '+selector+' > rect', 'color: var(--INTERNAL-'+colorvar+'); fill: var(--INTERNAL-'+colorvar+'); stroke: #80808080;' );
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this.adjustCSSRules( '#body svg '+selector+' > .label .nodeLabel', 'color: var(--INTERNAL-'+colorvar+'); fill: var(--INTERNAL-'+colorvar+'); stroke: #80808080;' );
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this.adjustCSSRules( '#body svg '+selector+' > .cluster-label .nodeLabel', 'color: var(--INTERNAL-'+colorvar+'); fill: var(--INTERNAL-'+colorvar+'); stroke: #80808080;' );
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this.adjustCSSRules( '#body svg '+selector+' .nodeLabel', 'filter: grayscale(1) invert(1) contrast(10000);' );
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},
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styleGraph: function(){
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this.variantvariables.forEach( function( e ){
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this.styleGraphGroup( '.'+e.name, e.name );
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}.bind( this ) );
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this.styleGraphGroup( '#maincontent', 'MAIN-BG-color' )
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this.styleGraphGroup( '#mainheadings', 'MAIN-BG-color' )
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this.styleGraphGroup( '#inlinecode', 'CODE-INLINE-BG-color' )
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this.styleGraphGroup( '#blockcode', 'CODE-BLOCK-BG-color' )
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this.styleGraphGroup( '#coloredboxes', 'BOX-BG-color' );
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this.styleGraphGroup( '#menu', 'MENU-SECTIONS-BG-color' )
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this.styleGraphGroup( '#menuheader', 'MENU-HEADER-BG-color' )
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this.styleGraphGroup( '#menusections', 'MENU-SECTIONS-ACTIVE-BG-color' )
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},
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generateGraphEdge: function( e ){
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var edge = '';
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if( e.fallback ){
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edge += e.fallback+':::'+e.fallback+' --> '+e.name+':::'+e.name;
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}
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else{
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edge += e.name+':::'+e.name;
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}
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return edge;
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},
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generateGraph: function(){
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var g_groups = {};
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var g_handler = '';
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this.variantvariables.forEach( function( e ){
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var group = e.group || ' ';
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g_groups[ group ] = ( g_groups[ group ] || [] ).concat( e );
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g_handler += ' click '+e.name+' variants.changeColor\n';
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});
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var graph =
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'flowchart LR\n' +
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' subgraph menu["menu"]\n' +
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' direction TB\n' +
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' subgraph menuheader["header"]\n' +
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' direction LR\n' +
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g_groups[ 'header' ].reduce( function( a, e ){ return a + ' ' + this.generateGraphEdge( e ) + '\n'; }.bind( this ), '' ) +
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' end\n' +
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' subgraph menusections["sections"]\n' +
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' direction LR\n' +
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g_groups[ 'sections' ].reduce( function( a, e ){ return a + ' ' + this.generateGraphEdge( e ) + '\n'; }.bind( this ), '' ) +
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' end\n' +
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' end\n' +
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' subgraph maincontent["content"]\n' +
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' direction TB\n' +
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g_groups[ 'content' ].reduce( function( a, e ){ return a + ' ' + this.generateGraphEdge( e ) + '\n'; }.bind( this ), '' ) +
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' subgraph mainheadings["headings"]\n' +
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' direction LR\n' +
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g_groups[ 'headings' ].reduce( function( a, e ){ return a + ' ' + this.generateGraphEdge( e ) + '\n'; }.bind( this ), '' ) +
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' end\n' +
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' subgraph inlinecode["inline code"]\n' +
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' direction LR\n' +
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g_groups[ 'inline code' ].reduce( function( a, e ){ return a + ' ' + this.generateGraphEdge( e ) + '\n'; }.bind( this ), '' ) +
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' end\n' +
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' subgraph blockcode["code blocks"]\n' +
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' direction LR\n' +
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g_groups[ 'code blocks' ].reduce( function( a, e ){ return a + ' ' + this.generateGraphEdge( e ) + '\n'; }.bind( this ), '' ) +
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' end\n' +
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' subgraph coloredboxes["colored boxes"]\n' +
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' direction LR\n' +
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g_groups[ 'colored boxes' ].reduce( function( a, e ){ return a + ' ' + this.generateGraphEdge( e ) + '\n'; }.bind( this ), '' ) +
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' end\n' +
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' end\n' +
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g_handler;
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console.log( graph );
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return graph;
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},
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variantvariables: [
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{ name: 'MAIN-TEXT-color', group: 'content', default: '#101010', tooltip: 'text color of content and h1 titles', },
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{ name: 'MAIN-LINK-color', group: 'content', default: '#486ac9', tooltip: 'link color of content', },
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{ name: 'MAIN-LINK-HOVER-color', group: 'content', fallback: 'MAIN-LINK-color', tooltip: 'hoverd link color of content', },
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{ name: 'MAIN-ANCHOR-color', group: 'content', fallback: 'MAIN-LINK-HOVER-color', tooltip: 'anchor color of titles', },
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{ name: 'MAIN-BG-color', group: 'content', default: '#ffffff', tooltip: 'background color of content', },
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{ name: 'TAG-BG-color', group: 'content', fallback: 'MENU-HEADER-BG-color', tooltip: 'tag color', },
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{ name: 'MAIN-TITLES-TEXT-color', group: 'headings', default: '#444753', tooltip: 'text color of h2-h6 titles and transparent box titles', },
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{ name: 'MAIN-TITLES-H1-color', group: 'headings', fallback: 'MAIN-TEXT-color', tooltip: 'text color of h1 titles', },
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{ name: 'MAIN-TITLES-H2-color', group: 'headings', fallback: 'MAIN-TITLES-TEXT-color', tooltip: 'text color of h2-h6 titles', },
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{ name: 'MAIN-TITLES-H3-color', group: 'headings', fallback: 'MAIN-TITLES-H2-color', tooltip: 'text color of h3-h6 titles', },
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{ name: 'MAIN-TITLES-H4-color', group: 'headings', fallback: 'MAIN-TITLES-H3-color', tooltip: 'text color of h4-h6 titles', },
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{ name: 'MAIN-TITLES-H5-color', group: 'headings', fallback: 'MAIN-TITLES-H4-color', tooltip: 'text color of h5-h6 titles', },
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{ name: 'MAIN-TITLES-H6-color', group: 'headings', fallback: 'MAIN-TITLES-H5-color', tooltip: 'text color of h6 titles', },
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{ name: 'CODE-BLOCK-color', group: 'code blocks', default: '#000000', tooltip: 'fallback text color of block code; should be adjusted to your selected chroma style', },
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{ name: 'CODE-BLOCK-BG-color', group: 'code blocks', default: '#f8f8f8', tooltip: 'fallback background color of block code; should be adjusted to your selected chroma style', },
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{ name: 'CODE-BLOCK-BORDER-color', group: 'code blocks', fallback: 'CODE-BLOCK-BG-color', tooltip: 'border color of block code', },
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{ name: 'CODE-INLINE-color', group: 'inline code', default: '#5e5e5e', tooltip: 'text color of inline code', },
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{ name: 'CODE-INLINE-BG-color', group: 'inline code', default: '#fffae9', tooltip: 'background color of inline code', },
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{ name: 'CODE-INLINE-BORDER-color', group: 'inline code', fallback: 'CODE-INLINE-BG-color', tooltip: 'border color of inline code', },
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{ name: 'MENU-HEADER-BG-color', group: 'header', default: '#7dc903', tooltip: 'background color of menu header', },
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{ name: 'MENU-HEADER-BORDER-color', group: 'header', fallback: 'MENU-HEADER-BG-color', tooltip: 'separator color of menu header', },
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{ name: 'MENU-HOME-LINK-color', group: 'header', default: '#323232', tooltip: 'home button color if configured', },
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{ name: 'MENU-HOME-LINK-HOVER-color', group: 'header', default: '#808080', tooltip: 'hoverd home button color if configured', },
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{ name: 'MENU-SEARCH-color', group: 'header', default: '#e0e0e0', tooltip: 'text and icon color of search box', },
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{ name: 'MENU-SEARCH-BG-color', group: 'header', default: '#323232', tooltip: 'background color of search box', },
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{ name: 'MENU-SEARCH-BOX-color', group: 'header', fallback: 'MENU-SEARCH-BG-color', tooltip: 'border color of search box', },
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{ name: 'MENU-SECTIONS-BG-color', group: 'sections', default: '#282828', tooltip: 'background of the menu; this is NOT just a color value but can be a complete CSS background definition including gradients, etc.', },
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{ name: 'MENU-SECTIONS-ACTIVE-BG-color', group: 'sections', default: 'rgba( 0, 0, 0, .166 )', tooltip: 'background color of the active menu section', },
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{ name: 'MENU-SECTION-ACTIVE-CATEGORY-color', group: 'sections', default: '#444444', tooltip: 'text color of the displayed menu topic', },
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{ name: 'MENU-SECTION-ACTIVE-CATEGORY-BG-color', group: 'sections', fallback: 'MAIN-BG-color', tooltip: 'background color of the displayed menu topic', },
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{ name: 'MENU-SECTIONS-LINK-color', group: 'sections', default: '#bababa', tooltip: 'link color of menu topics', },
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{ name: 'MENU-SECTIONS-LINK-HOVER-color', group: 'sections', fallback: 'MENU-SECTIONS-LINK-color', tooltip: 'hoverd link color of menu topics', },
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{ name: 'MENU-VISITED-color', group: 'sections', default: '#506397', tooltip: 'icon color of visited menu topics if configured', },
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{ name: 'MENU-SECTION-HR-color', group: 'sections', default: '#606060', tooltip: 'separator color of menu footer', },
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{ name: 'BOX-CAPTION-color', group: 'colored boxes', default: 'rgba( 255, 255, 255, 1 )', tooltip: 'text color of colored box titles', },
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{ name: 'BOX-BG-color', group: 'colored boxes', default: 'rgba( 255, 255, 255, .833 )', tooltip: 'background color of colored boxes', },
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{ name: 'BOX-TEXT-color', group: 'colored boxes', default: 'rgba( 16, 16, 16, 1 )', tooltip: 'text color of colored box content', },
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{ name: 'BOX-BLUE-color', group: 'colored boxes', default: 'rgba( 48, 117, 229, 1 )', tooltip: 'background color of blue boxes', },
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{ name: 'BOX-INFO-color', group: 'colored boxes', fallback: 'BOX-BLUE-color', tooltip: 'background color of info boxes', },
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{ name: 'BOX-BLUE-TEXT-color', group: 'colored boxes', fallback: 'BOX-TEXT-color', tooltip: 'text color of blue boxes', },
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{ name: 'BOX-INFO-TEXT-color', group: 'colored boxes', fallback: 'BOX-BLUE-TEXT-color', tooltip: 'text color of info boxes', },
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{ name: 'BOX-GREEN-color', group: 'colored boxes', default: 'rgba( 42, 178, 24, 1 )', tooltip: 'background color of green boxes', },
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{ name: 'BOX-TIP-color', group: 'colored boxes', fallback: 'BOX-GREEN-color', tooltip: 'background color of tip boxes', },
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{ name: 'BOX-GREEN-TEXT-color', group: 'colored boxes', fallback: 'BOX-TEXT-color', tooltip: 'text color of green boxes', },
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{ name: 'BOX-TIP-TEXT-color', group: 'colored boxes', fallback: 'BOX-GREEN-TEXT-color', tooltip: 'text color of tip boxes', },
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{ name: 'BOX-GREY-color', group: 'colored boxes', default: 'rgba( 128, 128, 128, 1 )', tooltip: 'background color of grey boxes', },
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{ name: 'BOX-NEUTRAL-color', group: 'colored boxes', fallback: 'BOX-GREY-color', tooltip: 'background color of neutral boxes', },
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{ name: 'BOX-GREY-TEXT-color', group: 'colored boxes', fallback: 'BOX-TEXT-color', tooltip: 'text color of grey boxes', },
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{ name: 'BOX-NEUTRAL-TEXT-color', group: 'colored boxes', fallback: 'BOX-GREY-TEXT-color', tooltip: 'text color of neutral boxes', },
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{ name: 'BOX-ORANGE-color', group: 'colored boxes', default: 'rgba( 237, 153, 9, 1 )', tooltip: 'background color of orange boxes', },
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{ name: 'BOX-NOTE-color', group: 'colored boxes', fallback: 'BOX-ORANGE-color', tooltip: 'background color of note boxes', },
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{ name: 'BOX-ORANGE-TEXT-color', group: 'colored boxes', fallback: 'BOX-TEXT-color', tooltip: 'text color of orange boxes', },
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{ name: 'BOX-NOTE-TEXT-color', group: 'colored boxes', fallback: 'BOX-ORANGE-TEXT-color', tooltip: 'text color of note boxes', },
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{ name: 'BOX-RED-color', group: 'colored boxes', default: 'rgba( 224, 62, 62, 1 )', tooltip: 'background color of red boxes', },
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{ name: 'BOX-WARNING-color', group: 'colored boxes', fallback: 'BOX-RED-color', tooltip: 'background color of warning boxes', },
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{ name: 'BOX-RED-TEXT-color', group: 'colored boxes', fallback: 'BOX-TEXT-color', tooltip: 'text color of red boxes', },
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{ name: 'BOX-WARNING-TEXT-color', group: 'colored boxes', fallback: 'BOX-RED-TEXT-color', tooltip: 'text color of warning boxes', },
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],
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};
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