Files
fnx_web/webcontroller/style.go
2022-06-07 14:43:01 +02:00

569 lines
16 KiB
Go

package webcontroller
import (
"fmt"
"html/template"
"math/rand"
"net/http"
"strconv"
"time"
"github.com/julienschmidt/httprouter"
)
func (wc *WebController) themeHandler(w http.ResponseWriter, r *http.Request, p httprouter.Params) {
w.Header().Set("Content-Type", "text/css")
w.Write([]byte(userStyleFromRequest(r)))
}
func userStyleFromRequest(r *http.Request) (s template.CSS) {
// Get the chosen style from the URL
var style = r.URL.Query().Get("style")
var hue = -1
if hueStr := r.URL.Query().Get("hue"); hueStr != "" {
hue, _ = strconv.Atoi(hueStr)
}
// If the URL style was empty use the cookie value
if style == "" {
if cookie, err := r.Cookie("style"); err == nil {
style = cookie.Value
}
}
if hue == -1 {
if cookie, err := r.Cookie("hue"); err == nil {
hue, _ = strconv.Atoi(cookie.Value)
}
}
return userStyle(style, hue)
}
func userStyle(style string, hue int) template.CSS {
var (
def styleSheet
light styleSheet
hasLight bool
)
switch style {
default:
fallthrough
case "nord":
def = nordDarkStyle
light = nordLightStyle
hasLight = true
case "nord_dark":
def = nordDarkStyle
case "nord_light", "snowstorm":
def = nordLightStyle
case "solarized":
def = solarizedDarkStyle
light = solarizedLightStyle
hasLight = true
case "solarized_dark":
def = solarizedDarkStyle
case "solarized_light":
def = solarizedLightStyle
case "classic":
def = classicStyle
hue = -1 // Does not support custom hues
case "purple_drain":
def = purpleDrainStyle
hue = -1 // Does not support custom hues
case "maroon":
def = maroonStyle
case "hacker":
def = hackerStyle
hue = -1 // Does not support custom hues
case "canta":
def = cantaPixeldrainStyle
case "skeuos":
def = skeuosPixeldrainStyle
case "sweet":
def = sweetPixeldrainStyle
case "adwaita":
def = adwaitaDarkStyle
light = adwaitaLightStyle
hasLight = true
}
if hue >= 0 && hue <= 360 {
def = def.withHue(hue)
light = light.withHue(hue)
}
if hasLight {
return template.CSS(def.withLight(light))
} else {
return template.CSS(def.String())
}
}
type styleSheet struct {
Link HSL // Based on Highlight if undefined
Input CSS
InputHover CSS
InputText CSS
InputDisabledText CSS
HighlightBackground CSS
Highlight HSL // Links, highlighted buttons, list navigation
HighlightText HSL // Text on buttons
Danger HSL
ScrollbarForeground CSS // Based on Highlight if undefined
ScrollbarHover CSS // Based on ScrollbarForeground if undefined
BackgroundColor HSL
Background CSS
BackgroundText HSL
BackgroundPattern CSS
ParallaxSlider CSS
Navigation CSS
BodyColor HSL
BodyBackground CSS
BodyText HSL
Separator CSS
CardColor HSL
CardText HSL
// Colors to use in graphs
Chart1 HSL
Chart2 HSL
Chart3 HSL
Shadow HSL
}
func (s styleSheet) withDefaults() styleSheet {
// Set default colors
var noColor = HSL{0, 0, 0}
var defaultHSL = func(target *HSL, def HSL) {
if *target == noColor {
*target = def
}
}
var defaultCSS = func(target *CSS, def CSS) {
if *target == nil {
*target = def
}
}
defaultHSL(&s.Link, s.Highlight.Add(0, 0, -.05))
defaultCSS(&s.ScrollbarForeground, s.Input)
defaultCSS(&s.ScrollbarHover, s.Highlight)
defaultHSL(&s.Chart1, s.Highlight)
defaultHSL(&s.Chart2, s.Chart1.Add(120, 0, 0))
defaultHSL(&s.Chart3, s.Chart2.Add(120, 0, 0))
defaultCSS(&s.HighlightBackground, s.Highlight)
defaultCSS(&s.Background, s.BackgroundColor)
defaultCSS(&s.BackgroundPattern, s.BackgroundColor)
defaultCSS(&s.ParallaxSlider, s.BackgroundColor)
defaultCSS(&s.Navigation, RawCSS("none"))
defaultCSS(&s.BodyBackground, s.BodyColor)
defaultHSL(&s.BackgroundText, s.BodyText)
defaultCSS(&s.Separator, s.BodyColor.Add(0, 0, .05))
return s
}
func (s styleSheet) withHue(hue int) styleSheet {
s = s.withDefaults()
var setHue = func(c CSS) CSS {
if hsl, ok := c.(HSL); ok {
hsl.Hue = hue
return hsl
} else {
return c
}
}
s.Input = setHue(s.Input)
s.InputHover = setHue(s.InputHover)
s.InputText = setHue(s.InputText)
s.InputDisabledText = setHue(s.InputDisabledText)
s.ScrollbarForeground = setHue(s.ScrollbarForeground)
s.ScrollbarHover = setHue(s.ScrollbarHover)
s.BackgroundColor.Hue = hue
s.Background = setHue(s.Background)
s.BackgroundText.Hue = hue
s.BackgroundPattern = setHue(s.BackgroundPattern)
s.ParallaxSlider = setHue(s.ParallaxSlider)
s.Navigation = setHue(s.Navigation)
s.BodyColor.Hue = hue
s.BodyBackground = setHue(s.BodyBackground)
s.BodyText.Hue = hue
s.Separator = setHue(s.Separator)
s.CardColor.Hue = hue
s.CardText.Hue = hue
s.Shadow.Hue = hue
return s
}
func (s styleSheet) String() string {
s = s.withDefaults()
return fmt.Sprintf(
`:root {
--link_color: %s;
--input_background: %s;
--input_hover_background: %s;
--input_text: %s;
--input_disabled_text: %s;
--highlight_background: %s;
--highlight_color: %s;
--highlight_text_color: %s;
--danger_color: %s;
--danger_color_dark: %s;
--scrollbar_foreground_color: %s;
--scrollbar_hover_color: %s;
--background_color: %s;
--background: %s;
--background_text_color: %s;
--background_pattern: url("%s");
--background_pattern_color: %s;
--parallax_slider_color: %s;
--navigation_background: %s;
--body_color: %s;
--body_background: %s;
--body_text_color: %s;
--separator: %s;
--shaded_background: %s;
--card_color: %s;
--chart_1_color: %s;
--chart_2_color: %s;
--chart_3_color: %s;
--shadow_color: %s;
}`,
s.Link.CSS(),
s.Input.CSS(),
s.InputHover.CSS(),
s.InputText.CSS(),
s.InputDisabledText.CSS(),
s.HighlightBackground.CSS(),
s.Highlight.CSS(),
s.HighlightText.CSS(),
s.Danger.CSS(),
s.Danger.Add(0, 0, -.02).CSS(),
s.ScrollbarForeground.CSS(),
s.ScrollbarHover.CSS(),
s.BackgroundColor.CSS(),
s.Background.CSS(),
s.BackgroundText.CSS(),
BackgroundTiles(),
s.BackgroundPattern.CSS(),
s.ParallaxSlider.CSS(),
s.Navigation.CSS(),
s.BodyColor.CSS(),
s.BodyBackground.CSS(),
s.BodyText.CSS(),
s.Separator.CSS(),
s.BodyColor.WithAlpha(0.5).CSS(), // shaded_background
s.CardColor.CSS(),
s.Chart1.CSS(),
s.Chart2.CSS(),
s.Chart3.CSS(),
s.Shadow.CSS(),
)
}
func (dark styleSheet) withLight(light styleSheet) string {
return fmt.Sprintf(
`%s
@media (prefers-color-scheme: light) {
%s
}`,
dark.String(),
light.String(),
)
}
func BackgroundTiles() template.URL {
var (
now = time.Now()
month = now.Month()
day = now.Day()
file string
)
if now.Weekday() == time.Wednesday && rand.Intn(20) == 0 {
file = "checker_wednesday"
} else if month == time.August && day == 8 {
file = "checker_dwarf"
} else if month == time.August && day == 24 {
file = "checker_developers"
} else if month == time.October && day == 31 {
file = "checker_halloween"
} else if month == time.December && (day == 25 || day == 26 || day == 27) {
file = "checker_christmas"
} else {
// file = "checker_ukraine"
file = fmt.Sprintf("checker%d", now.UnixNano()%18)
}
return template.URL("/res/img/background_patterns/" + file + "_transparent.png")
// var buf = bytes.Buffer{}
// if err := tpl.ExecuteTemplate(&buf, file+"_transparent.png", nil); err != nil {
// panic(err)
// }
// return template.URL(buf.String())
}
// Following are all the available styles
var purpleDrainStyle = styleSheet{
Input: HSL{266, .85, .24},
InputHover: HSL{266, .85, .28},
InputText: HSL{0, 0, .9},
InputDisabledText: HSL{266, .85, .4},
HighlightBackground: NewGradient(150, HSL{150, .84, .39}, HSL{85, .85, .35}),
Highlight: HSL{117, .63, .46},
HighlightText: HSL{0, 0, 0},
Danger: HSL{357, .63, .46},
ScrollbarForeground: HSL{266, .85, .40},
ScrollbarHover: HSL{266, .85, .50},
BackgroundColor: HSL{273, .93, .12},
Background: NewGradient(120, HSL{250, .9, .14}, HSL{300, .9, .10}),
BackgroundPattern: RawCSS("none"),
ParallaxSlider: HSL{275, .8, .1},
Navigation: RGBA{0, 0, 0, 0.1},
BodyColor: HSL{274, .9, .14},
BodyBackground: RawCSS("none"),
BodyText: HSL{0, 0, .8},
CardColor: HSL{275, .8, .18},
Shadow: HSL{0, 0, 0},
}
var classicStyle = styleSheet{
Input: HSL{0, 0, .18},
InputHover: HSL{0, 0, .22},
InputText: HSL{0, 0, .9},
InputDisabledText: HSL{0, 0, .4},
Highlight: HSL{89, .60, .45},
HighlightText: HSL{0, 0, 0},
Danger: HSL{339, .65, .31},
ScrollbarForeground: HSL{0, 0, .40},
ScrollbarHover: HSL{0, 0, .50},
BackgroundColor: HSL{0, 0, .08},
BodyColor: HSL{0, 0, .12},
BodyText: HSL{0, 0, .8},
CardColor: HSL{0, 0, .16},
Shadow: HSL{0, 0, 0},
}
var maroonStyle = styleSheet{
Input: HSL{0, .8, .20}, // hsl(0, 87%, 40%)
InputHover: HSL{0, .8, .24},
InputText: HSL{0, 0, 1},
InputDisabledText: HSL{0, 0, .5},
Highlight: HSL{137, 1, .37}, //hsl(137, 100%, 37%)
HighlightText: HSL{0, 0, 0},
Danger: HSL{9, .96, .42}, //hsl(9, 96%, 42%)
ScrollbarForeground: HSL{0, .75, .3},
ScrollbarHover: HSL{0, .75, .4},
BackgroundColor: HSL{0, .7, .05},
BodyColor: HSL{0, .8, .08}, // HSL{0, .8, .15},
BodyText: HSL{0, 0, .8},
CardColor: HSL{0, .9, .14},
Shadow: HSL{0, 0, 0},
}
var hackerStyle = styleSheet{
Input: HSL{0, 0, .1},
InputHover: HSL{0, 0, .14},
InputText: HSL{0, 0, 1},
InputDisabledText: HSL{0, 0, .5},
Highlight: HSL{120, .8, .5},
HighlightText: HSL{0, 0, 0},
Danger: HSL{0, 1, .4},
ScrollbarForeground: HSL{120, .5, .25},
ScrollbarHover: HSL{120, .5, .35},
BackgroundColor: HSL{0, 0, 0},
BodyColor: HSL{0, 0, .03},
BodyText: HSL{0, 0, .8},
CardColor: HSL{120, .4, .05},
Shadow: HSL{0, 0, 0},
}
var cantaPixeldrainStyle = styleSheet{
Input: HSL{167, .06, .30}, // hsl(167, 6%, 30%)
InputHover: HSL{167, .06, .34}, // hsl(167, 6%, 30%)
InputText: HSL{0, 0, 1},
InputDisabledText: HSL{0, 0, .5},
Highlight: HSL{165, 1, .40}, // hsl(165, 100%, 40%)
HighlightText: HSL{0, 0, 0},
Danger: HSL{40, 1, .5}, // hsl(40, 100%, 50%)
ScrollbarForeground: HSL{204, .05, .78}, // hsl(204, 5%, 78%)
ScrollbarHover: HSL{204, .05, .88},
BackgroundColor: HSL{180, .04, .16},
BodyColor: HSL{168, .05, .21},
BodyText: HSL{0, 0, .8},
CardColor: HSL{170, .05, .26},
Shadow: HSL{0, 0, 0},
}
var skeuosPixeldrainStyle = styleSheet{
Input: HSL{226, .15, .23}, //hsl(226, 15%, 23%)
InputHover: HSL{226, .15, .27},
InputText: HSL{60, .06, .93},
InputDisabledText: HSL{0, 0, .5},
Highlight: HSL{282, .65, .54}, // hsl(282, 65%, 54%)
HighlightText: HSL{0, 0, 1},
Danger: HSL{0, .79, .43}, // hsl(0, 79%, 43%)
ScrollbarForeground: HSL{220, .02, .62}, // hsl(220, 2%, 62%)
ScrollbarHover: HSL{220, .02, .80},
BackgroundColor: HSL{232, .14, .11}, //hsl(232, 14%, 11%)
BodyColor: HSL{229, .14, .16}, // hsl(229, 14%, 16%)
BodyText: HSL{60, .06, .93}, // hsl(60, 6%, 93%)
CardColor: HSL{225, .14, .17}, // hsl(225, 14%, 17%)
Shadow: HSL{0, 0, 0},
}
var nordDarkStyle = styleSheet{
Input: HSL{220, .16, .36}, // nord3
InputHover: HSL{220, .16, .40},
InputText: HSL{218, .27, .92}, // nord5 hsl(218, 27%, 92%)
InputDisabledText: HSL{220, .16, .22}, // nord0 hsl(220, 16%, 22%)
Highlight: HSL{92, .28, .65}, // nord14 hsl(92, 28%, 65%)
HighlightText: HSL{220, .16, .22}, // nord0
Danger: HSL{354, .42, .56}, // nord11 hsl(354, 42%, 56%)
ScrollbarForeground: HSL{179, .25, .65}, // nord7 hsl(179, 25%, 65%)
ScrollbarHover: HSL{193, .43, .67}, // nord8 hsl(193, 43%, 67%)
BackgroundColor: HSL{220, .16, .22}, // nord0
BodyColor: HSL{222, .16, .28}, // nord1
BodyText: HSL{219, .28, .88}, // nord4 hsl(219, 28%, 88%)
CardColor: HSL{220, .17, .32}, // nord2
Shadow: HSL{0, 0, 0},
}
var nordLightStyle = styleSheet{
Link: HSL{92, .40, .32},
Input: HSL{218, .27, .94}, // nord6 hsl(218, 27%, 94%)
InputHover: HSL{218, .27, .98},
InputText: HSL{222, .16, .28}, // nord1 hsl(222, 16%, 28%)
InputDisabledText: HSL{219, .28, .88}, // nord4 hsl(219, 28%, 88%)
Highlight: HSL{92, .28, .65}, // nord14 hsl(92, 28%, 65%)
HighlightText: HSL{222, .16, .28}, // nord3 hsl(220, 16%, 36%)
Danger: HSL{354, .42, .56}, // nord11 hsl(354, 42%, 56%)
ScrollbarForeground: HSL{179, .25, .65}, // nord7 hsl(179, 25%, 65%)
ScrollbarHover: HSL{193, .43, .67}, // nord8 hsl(193, 43%, 67%)
BackgroundColor: HSL{220, .16, .36}, // nord3 hsl(220, 16%, 36%)
BackgroundText: HSL{219, .28, .88}, // nord4 hsl(219, 28%, 88%)
ParallaxSlider: HSL{220, .16, .22}, // nord0 hsl(220, 16%, 22%)
BodyColor: HSL{219, .28, .88}, // nord4 hsl(219, 28%, 88%)
BodyText: HSL{220, .17, .32}, // nord2 hsl(220, 17%, 32%)
BackgroundPattern: HSL{219, .28, .88}, // hsl(219, 28%, 88%)
CardColor: HSL{218, .27, .92}, // nord5 hsl(218, 27%, 92%)
Shadow: HSL{220, .16, .36},
}
var sweetPixeldrainStyle = styleSheet{
Input: HSL{229, .25, .18}, // hsl(229, 25%, 14%)
InputHover: HSL{229, .25, .22}, // hsl(229, 25%, 14%)
InputText: HSL{223, .13, .79},
InputDisabledText: HSL{0, 0, .5},
Highlight: HSL{296, .88, .44},
HighlightText: HSL{0, 0, 0},
Danger: HSL{356, 1, .64}, // hsl(356, 100%, 64%)
BackgroundColor: HSL{225, .25, .06}, // hsl(225, 25%, 6%)
BodyColor: HSL{228, .25, .12}, // hsl(228, 25%, 12%)
BodyText: HSL{223, .13, .79}, // hsl(223, 13%, 79%)
Separator: RGBA{255, 255, 255, 0.05},
CardColor: HSL{229, .25, .14}, // hsl(229, 25%, 14%)
Shadow: HSL{0, 0, 0},
}
var adwaitaDarkStyle = styleSheet{
Input: RGBA{255, 255, 255, .06},
InputHover: RGBA{255, 255, 255, .1},
InputText: HSL{0, 0, 1},
InputDisabledText: HSL{0, 0, .5},
Highlight: HSL{152, .62, .39}, // hsl(152, 62%, 39%)
HighlightText: HSL{0, 0, 0},
Danger: HSL{9, 1, .69}, // hsl(9, 100%, 69%)
BackgroundColor: HSL{0, 0, .19},
BodyColor: HSL{0, 0, .14},
BodyText: HSL{0, 0, 1},
Separator: RGBA{255, 255, 255, 0.04},
CardColor: HSL{0, 0, .08},
Shadow: HSL{0, 0, 0},
}
var adwaitaLightStyle = styleSheet{
Input: RGBA{0, 0, 0, .06},
InputHover: RGBA{0, 0, 0, .1},
InputText: HSL{0, 0, .2},
InputDisabledText: HSL{0, 0, .7},
Highlight: HSL{152, .62, .47}, // hsl(152, 62%, 47%)
HighlightText: HSL{0, 0, 1},
Danger: HSL{356, .75, .43}, // hsl(356, 75%, 43%)
BackgroundColor: HSL{0, 0, .92},
BodyColor: HSL{0, 0, .98},
BodyText: HSL{0, 0, .2},
CardColor: HSL{0, 0, 1},
Shadow: HSL{0, 0, 0.36},
}
var solarizedDarkStyle = styleSheet{
Input: HSL{192, .81, .18}, // hsl(194, 14%, 40%)
InputHover: HSL{192, .81, .22}, // hsl(196, 13%, 45%)
InputText: HSL{180, .07, .80}, // hsl(44, 87%, 94%)
InputDisabledText: HSL{194, .14, .30}, // hsl(194, 14%, 40%)
Highlight: HSL{68, 1, .30}, // hsl(68, 100%, 30%)
HighlightText: HSL{192, .81, .14}, // hsl(192, 100%, 11%)
Danger: HSL{1, .71, .52}, // hsl(1, 71%, 52%)
BackgroundColor: HSL{192, 1, .11}, //hsl(192, 100%, 11%)
BodyColor: HSL{192, .81, .14}, // hsl(192, 81%, 14%)
BodyText: HSL{180, .07, .60}, // hsl(180, 7%, 60%)
Separator: RGBA{255, 255, 255, 0.05},
CardColor: HSL{192, .81, .16},
Shadow: HSL{0, 0, 0},
}
var solarizedLightStyle = styleSheet{
Input: HSL{46, .42, .84}, //hsl(180, 7%, 60%)
InputHover: HSL{46, .42, .88},
InputText: HSL{194, .14, .20}, // hsl(192, 81%, 14%)
InputDisabledText: HSL{194, .14, .80},
Highlight: HSL{68, 1, .30}, // hsl(68, 100%, 30%)
HighlightText: HSL{44, .87, .94},
Danger: HSL{1, .71, .52}, // hsl(1, 71%, 52%)
BackgroundColor: HSL{46, .42, .88}, // hsl(46, 42%, 88%)
BodyColor: HSL{44, .87, .94}, // hsl(44, 87%, 94%)
BodyText: HSL{194, .14, .40}, // hsl(194, 14%, 40%)
Separator: RGBA{0, 0, 0, 0.05},
CardColor: HSL{44, .87, .96},
Shadow: HSL{0, 0, 0.36},
}