Alexander Surma 786db4d3e9 Implement refreshed customiser
Add select indicator

Animate selector circle

Support for selecting 2 colors

Make marker all nice and pretty

Show selector numbers

Add shadows to selected fields

Don't allow reselection of secondary color

Fix font baseline issue

Avoid some white lines in wheel

Add overlap to tiles

New SVG filter for shadow

Incorporate code into MaterialCustomizer prototype

Revert "New SVG filter for shadow"

This reverts commit bc23f0d2ba36e6181b527fb87f7b41eb3333cea2.

Stronger shadow

Refactor init procedure into subroutines

First steps of customizer logic recycling

Actually call template generation

Implement forbidden accents

Remove dead code

Clean up CSS

Make wheel scale

Implement new customizer preview

Cross browser check

Remove slashes

Give max-width to customizer

Make jshint behave
2015-06-16 21:05:47 +01:00

436 lines
16 KiB
JavaScript

/*global MaterialCustomizer:true*/
/* exported init */
function init() {
'use strict';
var wheel = document.querySelector('#wheel > svg');
new MaterialCustomizer(wheel);
}
(function() {
'use strict';
function parentWrapper(p) {
return p.parentElement || p.parentNode;
}
window.MaterialCustomizer = function(wheel) {
this.wheel = wheel;
this.paletteIndices = ['Red', 'Pink', 'Purple', 'Deep Purple', 'Indigo',
'Blue', 'Light Blue', 'Cyan', 'Teal', 'Green',
'Light Green', 'Lime', 'Yellow', 'Amber', 'Orange',
'Deep Orange', 'Brown', 'Grey', 'Blue Grey'];
this.lightnessIndices = ['50', '100', '200', '300', '400',
'500', '600', '700', '800', '900',
'A100', 'A200', 'A400', 'A700'];
this.palettes = [
['255,235,238', '255,205,210', '239,154,154', '229,115,115', '239,83,80',
'244,67,54', '229,57,53', '211,47,47', '198,40,40', '183,28,28',
'255,138,128', '255,82,82', '255,23,68', '213,0,0'],
['252,228,236', '248,187,208', '244,143,177', '240,98,146', '236,64,122',
'233,30,99', '216,27,96', '194,24,91', '173,20,87', '136,14,79',
'255,128,171', '255,64,129', '245,0,87', '197,17,98'],
['243,229,245', '225,190,231', '206,147,216', '186,104,200', '171,71,188',
'156,39,176', '142,36,170', '123,31,162', '106,27,154', '74,20,140',
'234,128,252', '224,64,251', '213,0,249', '170,0,255'],
['237,231,246', '209,196,233', '179,157,219', '149,117,205', '126,87,194',
'103,58,183', '94,53,177', '81,45,168', '69,39,160', '49,27,146',
'179,136,255', '124,77,255', '101,31,255', '98,0,234'],
['232,234,246', '197,202,233', '159,168,218', '121,134,203', '92,107,192',
'63,81,181', '57,73,171', '48,63,159', '40,53,147', '26,35,126',
'140,158,255', '83,109,254', '61,90,254', '48,79,254'],
['227,242,253', '187,222,251', '144,202,249', '100,181,246', '66,165,245',
'33,150,243', '30,136,229', '25,118,210', '21,101,192', '13,71,161',
'130,177,255', '68,138,255', '41,121,255', '41,98,255'],
['225,245,254', '179,229,252', '129,212,250', '79,195,247', '41,182,246',
'3,169,244', '3,155,229', '2,136,209', '2,119,189', '1,87,155',
'128,216,255', '64,196,255', '0,176,255', '0,145,234'],
['224,247,250', '178,235,242', '128,222,234', '77,208,225', '38,198,218',
'0,188,212', '0,172,193', '0,151,167', '0,131,143', '0,96,100',
'132,255,255', '24,255,255', '0,229,255', '0,184,212'],
['224,242,241', '178,223,219', '128,203,196', '77,182,172', '38,166,154',
'0,150,136', '0,137,123', '0,121,107', '0,105,92', '0,77,64',
'167,255,235', '100,255,218', '29,233,182', '0,191,165'],
['232,245,233', '200,230,201', '165,214,167', '129,199,132', '102,187,106',
'76,175,80', '67,160,71', '56,142,60', '46,125,50', '27,94,32',
'185,246,202', '105,240,174', '0,230,118', '0,200,83'],
['241,248,233', '220,237,200', '197,225,165', '174,213,129', '156,204,101',
'139,195,74', '124,179,66', '104,159,56', '85,139,47', '51,105,30',
'204,255,144', '178,255,89', '118,255,3', '100,221,23'],
['249,251,231', '240,244,195', '230,238,156', '220,231,117', '212,225,87',
'205,220,57', '192,202,51', '175,180,43', '158,157,36', '130,119,23',
'244,255,129', '238,255,65', '198,255,0', '174,234,0'],
['255,253,231', '255,249,196', '255,245,157', '255,241,118', '255,238,88',
'255,235,59', '253,216,53', '251,192,45', '249,168,37', '245,127,23',
'255,255,141', '255,255,0', '255,234,0', '255,214,0'],
['255,248,225', '255,236,179', '255,224,130', '255,213,79', '255,202,40',
'255,193,7', '255,179,0', '255,160,0', '255,143,0', '255,111,0',
'255,229,127', '255,215,64', '255,196,0', '255,171,0'],
['255,243,224', '255,224,178', '255,204,128', '255,183,77', '255,167,38',
'255,152,0', '251,140,0', '245,124,0', '239,108,0', '230,81,0',
'255,209,128', '255,171,64', '255,145,0', '255,109,0'],
['251,233,231', '255,204,188', '255,171,145', '255,138,101', '255,112,67',
'255,87,34', '244,81,30', '230,74,25', '216,67,21', '191,54,12',
'255,158,128', '255,110,64', '255,61,0', '221,44,0'],
['239,235,233', '215,204,200', '188,170,164', '161,136,127', '141,110,99',
'121,85,72', '109,76,65', '93,64,55', '78,52,46', '62,39,35'],
['250,250,250', '245,245,245', '238,238,238', '224,224,224', '189,189,189',
'158,158,158', '117,117,117', '97,97,97', '66,66,66', '33,33,33'],
['236,239,241', '207,216,220', '176,190,197', '144,164,174', '120,144,156',
'96,125,139', '84,110,122', '69,90,100', '55,71,79', '38,50,56']
];
this.init_();
};
MaterialCustomizer.prototype.init_ = function() {
this.config = {
width: 650, // width of the SVG panel
height: 650, // height of the SVG panel
r: 250, // radius of the wheel
ri: 100, // radius of the inner hole
hd: 40, // height of the dark section
c: 40, // Distance(center of selector circle, border of wheel)
mrs: 0.5, // Percent of available width to use as radius for selector circle
alphaIncr: 0.005, // Value to add to alpha to make tiles overlap slightly
colors: [
'Cyan',
'Teal',
'Green',
'Light Green',
'Lime',
'Yellow',
'Amber',
'Orange',
'Brown',
'Blue Grey',
'Grey',
'Deep Orange',
'Red',
'Pink',
'Purple',
'Deep Purple',
'Indigo',
'Blue',
'Light Blue',
]
};
this.forbiddenAccents = ['Blue Grey', 'Brown', 'Grey'];
this.numSelected = 0;
this.calculateValues_();
this.buildWheel_();
return;
};
MaterialCustomizer.prototype.calculateValues_ = function() {
var config = this.config;
// Calculated values
// Angle of each piece of the wheel
config.alphaDeg = 360.0 / config.colors.length;
config.alphaRad = config.alphaDeg * Math.PI / 180;
// Radius of selector circle
config.rs = (config.c + config.r) * Math.sin(config.alphaRad / 2);
config.rs *= config.mrs;
// Angle of selector cone
config.selectorAlphaRad = Math.atan(config.rs / config.c) * 2;
// Angles of cone tangetial point
config.gamma1 = config.alphaRad / 2 - config.selectorAlphaRad / 2;
config.gamma2 = config.alphaRad / 2 + config.selectorAlphaRad / 2;
// Center of selector circle
config.cx = (config.c + config.r) * Math.sin(config.alphaRad) / 2;
config.cy = -(config.c + config.r) * (1 + Math.cos(config.alphaRad)) / 2;
this.config = config;
};
MaterialCustomizer.prototype.buildWheel_ = function() {
var config = this.config;
var mainG = this.wheel.querySelector('g.wheel--maing');
this.wheel.setAttribute('viewBox', '0 0 ' +
this.config.width + ' ' + this.config.height);
this.wheel.setAttribute('preserveAspectRatio', 'xMidYMid meet');
this.wheel.setAttribute('width', this.config.width);
this.wheel.setAttribute('height', this.config.height);
var fieldTpl = this.generateFieldTemplate_();
var svgNS = 'http://www.w3.org/2000/svg';
config.colors.forEach(function(color, idx) {
var field = fieldTpl.cloneNode(true);
for (var i = 1; i <= 2; i++) {
var g = document.createElementNS(svgNS, 'g');
var label = document.createElementNS(svgNS, 'text');
label.setAttribute('class', 'label label--' + i);
label.setAttribute('transform',
'rotate(' + (-config.alphaDeg * idx) + ')');
label.setAttribute('dy', '0.5ex');
label.textContent = '' + i;
g.appendChild(label);
g.setAttribute('transform',
'translate(' + config.cx + ',' + config.cy + ')');
field.appendChild(g);
}
field.setAttribute('data-color', color);
field.querySelector('.polygons > *:nth-child(1)').style.fill =
'rgb(' + this.getColor(color, '500') + ')';
field.querySelector('.polygons > *:nth-child(2)').style.fill =
'rgb(' + this.getColor(color, '700') + ')';
field.querySelector('.polygons').
addEventListener('click', this.fieldClicked_.bind(this));
field.setAttribute('transform', 'rotate(' + config.alphaDeg * idx + ')');
mainG.appendChild(field);
}.bind(this));
mainG.setAttribute('transform',
'translate(' + config.width / 2 + ',' + config.height / 2 + ')');
};
MaterialCustomizer.prototype.generateFieldTemplate_ = function() {
var svgNS = 'http://www.w3.org/2000/svg';
var config = this.config;
var fieldTpl = document.createElementNS(svgNS, 'g');
var polygons = document.createElementNS(svgNS, 'g');
var lightField = document.createElementNS(svgNS, 'polygon');
lightField.setAttribute('points', [
[
config.ri * Math.sin(config.alphaRad + config.alphaIncr),
-config.ri * Math.cos(config.alphaRad + config.alphaIncr)
].join(','),
[
config.r * Math.sin(config.alphaRad + config.alphaIncr),
-config.r * Math.cos(config.alphaRad + config.alphaIncr)
].join(','),
[0, -config.r].join(','),
[0, -(config.ri + config.hd)].join(','),
].join(' '));
var darkField = document.createElementNS(svgNS, 'polygon');
darkField.setAttribute('points', [
[
config.ri * Math.sin(config.alphaRad + config.alphaIncr),
-config.ri * Math.cos(config.alphaRad + config.alphaIncr)
].join(','),
[
(config.ri + config.hd) * Math.sin(config.alphaRad + config.alphaIncr),
-(config.ri + config.hd) * Math.cos(config.alphaRad + config.alphaIncr)
].join(','),
[0, -(config.ri + config.hd)].join(','),
[0, -config.ri].join(','),
].join(' '));
polygons.appendChild(lightField);
polygons.appendChild(darkField);
polygons.setAttribute('class', 'polygons');
fieldTpl.appendChild(polygons);
var selector = document.createElementNS(svgNS, 'path');
selector.setAttribute('class', 'selector');
selector.setAttribute('d',
' M ' +
(config.r * Math.sin(config.alphaRad) / 2) +
' ' +
-(config.r * (1 + Math.cos(config.alphaRad)) / 2) +
' L ' +
(config.cx - config.rs * Math.cos(config.gamma1)) +
' ' +
(config.cy - config.rs * Math.sin(config.gamma1)) +
' A ' +
config.rs +
' ' +
config.rs +
' ' +
config.alphaDeg +
' 1 1 ' +
(config.cx + config.rs * Math.cos(config.gamma2)) +
' ' +
(config.cy + config.rs * Math.sin(config.gamma2)) +
' z '
);
fieldTpl.appendChild(selector);
return fieldTpl;
};
MaterialCustomizer.prototype.fieldClicked_ = function (ev) {
var g = parentWrapper(parentWrapper(ev.target));
var selectedColor = g.getAttribute('data-color');
// Ignore clicks on already selected fields
if ((g.getAttribute('class') || '').indexOf('selected') !== -1) {
return;
}
this.numSelected++;
switch (this.numSelected) {
case 2:
if (this.forbiddenAccents.indexOf(selectedColor) !== -1) {
this.numSelected--;
return;
}
this.highlightField_(g);
this.wheel.setAttribute('class', '');
window.requestAnimationFrame(this.changeColor.bind(this));
break;
case 3:
Array.prototype.forEach.call(
this.wheel.querySelector('g.wheel--maing').childNodes,
function(f) {
f.setAttribute('class', '');
f.querySelector('.polygons').setAttribute('filter', '');
}
);
this.numSelected = 1;
/* falls through */
case 1:
this.highlightField_(g);
window.requestAnimationFrame(function() {
this.wheel.setAttribute('class', 'hide-nonaccents');
}.bind(this));
break;
}
};
MaterialCustomizer.prototype.highlightField_ = function(g) {
var parent = parentWrapper(g);
// Make the current polygon the last child of its parent
// so shadows are visible.
parent.removeChild(g);
parent.appendChild(g);
// We changed the DOM hierarchy, CSS animations might not show until
// DOM has updated internally.
var isIE = window.navigator.msPointerEnabled;
window.requestAnimationFrame(function() {
g.setAttribute('class', 'selected selected--' + this);
// FIXME: Shadows in IE10 don't disappear, for now they are disabled
if (!isIE) {
g.querySelector('.polygons')
.setAttribute('filter', 'url(#drop-shadow)');
}
}.bind(this.numSelected));
};
MaterialCustomizer.prototype.getColor = function(name, lightness) {
var r = this.palettes[this.paletteIndices.indexOf(name)];
if (!r) {
return null;
}
return r[this.lightnessIndices.indexOf(lightness)];
};
MaterialCustomizer.prototype.processTemplate = function(response) {
var generated = response;
var primaryColor = this.wheel.querySelector('.selected--1')
.getAttribute('data-color');
var secondaryColor = this.wheel.querySelector('.selected--2')
.getAttribute('data-color');
var primary = this.getColor(primaryColor, '500');
var primaryDark = this.getColor(primaryColor, '700');
var accent = this.getColor(secondaryColor, 'A200');
generated = this.replaceKeyword(
generated,
'\\$color-primary-dark', primaryDark);
generated = this.replaceKeyword(
generated,
'\\$color-primary-contrast', this.calculateTextColor(primary));
generated = this.replaceKeyword(
generated,
'\\$color-accent-contrast', this.calculateTextColor(accent));
generated = this.replaceKeyword(generated, '\\$color-primary', primary);
generated = this.replaceKeyword(generated, '\\$color-accent', accent);
window.generated = generated;
return generated;
};
MaterialCustomizer.prototype.calculateChannel = function(component) {
component = component / 255;
return component < 0.03928 ?
component / 12.92 : Math.pow((component + 0.055) / 1.055, 2.4);
};
MaterialCustomizer.prototype.calculateLuminance = function(color) {
var components = color.split(',');
var red = this.calculateChannel(parseInt(components[0]));
var green = this.calculateChannel(parseInt(components[1]));
var blue = this.calculateChannel(parseInt(components[2]));
return (0.2126 * red) + (0.7152 * green) + (0.0722 * blue);
};
MaterialCustomizer.prototype.calculateContrast =
function(background, foreground) {
var backLum = this.calculateLuminance(background) + 0.05;
var foreLum = this.calculateLuminance(foreground) + 0.05;
return Math.max(backLum, foreLum) / Math.min(backLum, foreLum);
};
MaterialCustomizer.prototype.calculateTextColor = function(background) {
var minimumContrast = 3.1;
var light = '255,255,255';
var dark = '66,66,66';
// Most colors will be dark, so check light text color first.
var whiteContrast = this.calculateContrast(background, light);
if (whiteContrast >= minimumContrast) {
return light;
} else {
var blackContrast = this.calculateContrast(background, dark);
return blackContrast > whiteContrast ? dark : light;
}
};
MaterialCustomizer.prototype.replaceKeyword = function(str, key, val) {
return str.replace(new RegExp(key, 'g'), val);
};
MaterialCustomizer.prototype.changeColor = function() {
var oldStyle = document.getElementById('main-stylesheet');
var req = new XMLHttpRequest();
var self = this;
req.onload = function() {
var style = document.createElement('style');
style.id = 'main-stylesheet';
style.textContent = self.processTemplate(this.responseText);
if (oldStyle && oldStyle.parentNode) {
oldStyle.parentNode.removeChild(oldStyle);
}
document.head.appendChild(style);
self.prepareDownload();
};
req.open('get', '../material.min.css.template', true);
req.send();
};
MaterialCustomizer.prototype.download = function() {
// Workaround for IE.
if (window.navigator.msSaveBlob) {
window.navigator.msSaveBlob(this.blob, 'material.min.css');
}
};
MaterialCustomizer.prototype.prepareDownload = function() {
var link = document.getElementById('download');
var blob = new Blob([window.generated], {type: 'text/css'});
this.blob = blob;
var url = URL.createObjectURL(blob);
link.setAttribute('href', url);
link.setAttribute('download', 'material.min.css');
};
})();