mirror of https://github.com/anoshenko/rui.git
360 lines
8.2 KiB
Go
360 lines
8.2 KiB
Go
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package rui
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import (
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"fmt"
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"strings"
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)
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/*
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type Session struct {
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customTheme *theme
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darkTheme bool
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touchScreen bool
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textDirection int
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pixelRatio float64
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language string
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languages []string
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checkboxOff string
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checkboxOn string
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radiobuttonOff string
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radiobuttonOn string
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}
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*/
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func (session *sessionData) DarkTheme() bool {
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return session.darkTheme
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}
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func (session *sessionData) TouchScreen() bool {
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return session.touchScreen
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}
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func (session *sessionData) PixelRatio() float64 {
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return session.pixelRatio
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}
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func (session *sessionData) TextDirection() int {
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return session.textDirection
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}
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func (session *sessionData) constant(tag string, prevTags []string) (string, bool) {
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tags := append(prevTags, tag)
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result := ""
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themes := session.themes()
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for {
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ok := false
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if session.touchScreen {
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for _, theme := range themes {
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if theme.touchConstants != nil {
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if result, ok = theme.touchConstants[tag]; ok {
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break
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}
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}
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}
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}
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if !ok {
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for _, theme := range themes {
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if theme.constants != nil {
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if result, ok = theme.constants[tag]; ok {
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break
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}
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}
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}
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}
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if !ok {
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ErrorLogF(`"%v" constant not found`, tag)
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return "", false
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}
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if len(result) < 2 || !strings.ContainsRune(result, '@') {
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return result, true
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}
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for _, separator := range []string{",", " ", ":", ";", "|", "/"} {
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if strings.Contains(result, separator) {
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result, ok = session.resolveConstantsNext(result, tags)
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return result, ok
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}
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}
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if result[0] != '@' {
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return result, true
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}
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tag = result[1:]
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for _, t := range tags {
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if t == tag {
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ErrorLogF(`"%v" constant is cyclic`, tag)
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return "", false
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}
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}
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tags = append(tags, tag)
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}
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}
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func (session *sessionData) resolveConstants(value string) (string, bool) {
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return session.resolveConstantsNext(value, []string{})
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}
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func (session *sessionData) resolveConstantsNext(value string, prevTags []string) (string, bool) {
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if !strings.Contains(value, "@") {
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return value, true
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}
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separators := []rune{',', ' ', ':', ';', '|', '/'}
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sep := rune(0)
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index := -1
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for _, s := range separators {
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if i := strings.IndexRune(value, s); i >= 0 {
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if i < index || index < 0 {
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sep = s
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index = i
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}
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}
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}
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ok := true
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if index >= 0 {
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v1 := strings.Trim(value[:index], " \t\n\r")
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v2 := strings.Trim(value[index+1:], " \t\n\r")
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if len(v1) > 1 && v1[0] == '@' {
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if v1, ok = session.constant(v1[1:], prevTags); !ok {
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return value, false
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}
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if v, ok := session.resolveConstantsNext(v1, prevTags); ok {
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v1 = v
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} else {
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return v1 + string(sep) + v2, false
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}
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}
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if v, ok := session.resolveConstantsNext(v2, prevTags); ok {
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v2 = v
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}
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return v1 + string(sep) + v2, ok
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} else if value[0] == '@' {
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if value, ok = session.constant(value[1:], prevTags); ok {
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return session.resolveConstantsNext(value, prevTags)
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}
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}
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return value, false
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}
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func (session *sessionData) Constant(tag string) (string, bool) {
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return session.constant(tag, []string{})
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}
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func (session *sessionData) themes() []*theme {
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if session.customTheme != nil {
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return []*theme{session.customTheme, defaultTheme}
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}
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return []*theme{defaultTheme}
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}
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// Color return the color with "tag" name or 0 if it is not exists
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func (session *sessionData) Color(tag string) (Color, bool) {
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tags := []string{tag}
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result := ""
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themes := session.themes()
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for {
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ok := false
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if session.darkTheme {
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for _, theme := range themes {
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if theme.darkColors != nil {
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if result, ok = theme.darkColors[tag]; ok {
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break
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}
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}
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}
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}
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if !ok {
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for _, theme := range themes {
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if theme.colors != nil {
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if result, ok = theme.colors[tag]; ok {
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break
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}
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}
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}
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}
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if !ok {
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ErrorLogF(`"%v" color not found`, tag)
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return 0, false
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}
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if len(result) == 0 || result[0] != '@' {
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color, ok := StringToColor(result)
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if !ok {
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ErrorLogF(`invalid value "%v" of "%v" color constant`, result, tag)
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return 0, false
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}
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return color, true
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}
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tag = result[1:]
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for _, t := range tags {
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if t == tag {
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ErrorLogF(`"%v" color is cyclic`, tag)
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return 0, false
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}
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}
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tags = append(tags, tag)
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}
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}
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func (session *sessionData) SetCustomTheme(name string) bool {
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if name == "" {
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if session.customTheme == nil {
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return true
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}
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} else if theme, ok := resources.themes[name]; ok {
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session.customTheme = theme
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} else {
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return false
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}
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session.reload()
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return true
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}
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const checkImage = `<svg width="16" height="16" version="1.1" viewBox="0 0 16 16" xmlns="http://www.w3.org/2000/svg"><path d="m4 8 3 4 5-8" fill="none" stroke="#fff" stroke-linecap="round" stroke-linejoin="round" stroke-width="2.5"/></svg>`
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func (session *sessionData) checkboxImage(checked bool) string {
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var borderColor, backgroundColor Color
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var ok bool
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if borderColor, ok = session.Color("ruiDisabledTextColor"); !ok {
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if session.darkTheme {
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borderColor = 0xFFA0A0A0
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} else {
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borderColor = 0xFF202020
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}
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}
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if checked {
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if backgroundColor, ok = session.Color("ruiHighlightColor"); !ok {
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backgroundColor = 0xFF1A74E8
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}
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} else if backgroundColor, ok = session.Color("backgroundColor"); !ok {
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if session.darkTheme {
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backgroundColor = 0xFFA0A0A0
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} else {
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backgroundColor = 0xFF202020
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}
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}
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buffer := allocStringBuilder()
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defer freeStringBuilder(buffer)
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buffer.WriteString(`<div style="width: 18px; height: 18px; background-color: `)
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buffer.WriteString(backgroundColor.cssString())
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buffer.WriteString(`; border: 1px solid `)
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buffer.WriteString(borderColor.cssString())
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buffer.WriteString(`; border-radius: 4px;">`)
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if checked {
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buffer.WriteString(checkImage)
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}
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buffer.WriteString(`</div>`)
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return buffer.String()
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}
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func (session *sessionData) checkboxOffImage() string {
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if session.checkboxOff == "" {
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session.checkboxOff = session.checkboxImage(false)
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}
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return session.checkboxOff
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}
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func (session *sessionData) checkboxOnImage() string {
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if session.checkboxOn == "" {
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session.checkboxOn = session.checkboxImage(true)
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}
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return session.checkboxOn
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}
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func (session *sessionData) radiobuttonOffImage() string {
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if session.radiobuttonOff == "" {
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var borderColor, backgroundColor Color
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var ok bool
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if borderColor, ok = session.Color("ruiDisabledTextColor"); !ok {
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if session.darkTheme {
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borderColor = 0xFFA0A0A0
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} else {
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borderColor = 0xFF202020
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}
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}
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if backgroundColor, ok = session.Color("backgroundColor"); !ok {
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if session.darkTheme {
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backgroundColor = 0xFFA0A0A0
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} else {
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backgroundColor = 0xFF202020
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}
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}
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session.radiobuttonOff = fmt.Sprintf(`<div style="width: 16px; height: 16px; background-color: %s; border: 1px solid %s; border-radius: 8px;"></div>`,
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backgroundColor.cssString(), borderColor.cssString())
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}
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return session.radiobuttonOff
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}
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func (session *sessionData) radiobuttonOnImage() string {
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if session.radiobuttonOn == "" {
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var borderColor, backgroundColor Color
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var ok bool
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if borderColor, ok = session.Color("ruiHighlightColor"); !ok {
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borderColor = 0xFF1A74E8
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}
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if backgroundColor, ok = session.Color("ruiHighlightTextColor"); !ok {
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backgroundColor = 0xFFFFFFFF
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}
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session.radiobuttonOn = fmt.Sprintf(`<div style="width: 16px; height: 16px; display: grid; justify-items: center; align-items: center; background-color: %s; border: 2px solid %s; border-radius: 8px;"><div style="width: 8px; height: 8px; background-color: %s; border-radius: 4px;"></div></div>`,
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backgroundColor.cssString(), borderColor.cssString(), borderColor.cssString())
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}
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return session.radiobuttonOn
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}
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func (session *sessionData) Language() string {
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if session.language != "" {
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return session.language
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}
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if session.languages != nil && len(session.languages) > 0 {
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return session.languages[0]
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}
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return "en"
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}
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func (session *sessionData) SetLanguage(lang string) {
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lang = strings.Trim(lang, " \t\n\r")
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if lang != session.language {
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session.language = lang
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if session.rootView != nil {
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buffer := allocStringBuilder()
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defer freeStringBuilder(buffer)
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buffer.WriteString(`document.getElementById('ruiRootView').innerHTML = '`)
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viewHTML(session.rootView, buffer)
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buffer.WriteString("';\nscanElementsSize();")
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session.runScript(buffer.String())
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}
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}
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}
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