mirror of https://github.com/anoshenko/rui.git
880 lines
20 KiB
Go
880 lines
20 KiB
Go
package rui
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import (
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"fmt"
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"sort"
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"strconv"
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"strings"
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)
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const (
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DefaultMedia = 0
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PortraitMedia = 1
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LandscapeMedia = 2
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)
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type mediaStyle struct {
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orientation int
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maxWidth int
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maxHeight int
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styles map[string]ViewStyle
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}
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type theme struct {
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name string
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constants map[string]string
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touchConstants map[string]string
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colors map[string]string
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darkColors map[string]string
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images map[string]string
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darkImages map[string]string
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styles map[string]ViewStyle
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mediaStyles []mediaStyle
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}
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type Theme interface {
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fmt.Stringer
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Name() string
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Constant(tag string) (string, string)
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SetConstant(tag string, value, touchUIValue string)
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// ConstantTags returns the list of all available constants
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ConstantTags() []string
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Color(tag string) (string, string)
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SetColor(tag, color, darkUIColor string)
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// ColorTags returns the list of all available color constants
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ColorTags() []string
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Image(tag string) (string, string)
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SetImage(tag, image, darkUIImage string)
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// ImageConstantTags returns the list of all available image constants
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ImageConstantTags() []string
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Style(tag string) ViewStyle
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SetStyle(tag string, style ViewStyle)
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MediaStyle(tag string, orientation, maxWidth, maxHeight int) ViewStyle
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SetMediaStyle(tag string, orientation, maxWidth, maxHeight int, style ViewStyle)
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StyleTags() []string
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MediaStyles(tag string) []struct {
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Selectors string
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Orientation, MaxWidth, MaxHeight int
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}
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Append(anotherTheme Theme)
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constant(tag string, touchUI bool) string
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color(tag string, darkUI bool) string
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image(tag string, darkUI bool) string
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style(tag string) ViewStyle
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cssText(session Session) string
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data() *theme
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}
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func (rule mediaStyle) cssText() string {
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builder := allocStringBuilder()
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defer freeStringBuilder(builder)
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switch rule.orientation {
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case PortraitMedia:
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builder.WriteString(" and (orientation: portrait)")
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case LandscapeMedia:
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builder.WriteString(" and (orientation: landscape)")
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}
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if rule.maxWidth > 0 {
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builder.WriteString(" and (max-width: ")
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builder.WriteString(strconv.Itoa(rule.maxWidth))
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builder.WriteString("px)")
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}
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if rule.maxHeight > 0 {
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builder.WriteString(" and (max-height: ")
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builder.WriteString(strconv.Itoa(rule.maxHeight))
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builder.WriteString("px)")
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}
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return builder.String()
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}
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func parseMediaRule(text string) (mediaStyle, bool) {
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rule := mediaStyle{
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orientation: DefaultMedia,
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maxWidth: 0,
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maxHeight: 0,
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styles: map[string]ViewStyle{},
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}
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elements := strings.Split(text, ":")
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for i := 1; i < len(elements); i++ {
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switch element := elements[i]; element {
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case "portrait":
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if rule.orientation != DefaultMedia {
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ErrorLog(`Duplicate orientation tag in the style section "` + text + `"`)
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return rule, false
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}
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rule.orientation = PortraitMedia
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case "landscape":
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if rule.orientation != DefaultMedia {
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ErrorLog(`Duplicate orientation tag in the style section "` + text + `"`)
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return rule, false
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}
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rule.orientation = LandscapeMedia
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default:
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elementSize := func(name string) (int, bool) {
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if strings.HasPrefix(element, name) {
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size, err := strconv.Atoi(element[len(name):])
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if err == nil && size > 0 {
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return size, true
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}
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ErrorLogF(`Invalid style section name "%s": %s`, text, err.Error())
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return 0, false
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}
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return 0, true
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}
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if size, ok := elementSize("width"); !ok || size > 0 {
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if !ok {
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return rule, false
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}
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if rule.maxWidth != 0 {
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ErrorLog(`Duplicate "width" tag in the style section "` + text + `"`)
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return rule, false
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}
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rule.maxWidth = size
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} else if size, ok := elementSize("height"); !ok || size > 0 {
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if !ok {
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return rule, false
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}
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if rule.maxHeight != 0 {
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ErrorLog(`Duplicate "height" tag in the style section "` + text + `"`)
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return rule, false
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}
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rule.maxHeight = size
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} else {
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ErrorLogF(`Unknown elemnet "%s" in the style section name "%s"`, element, text)
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return rule, false
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}
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}
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}
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return rule, true
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}
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var defaultTheme = NewTheme("")
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func NewTheme(name string) Theme {
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result := new(theme)
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result.init()
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result.name = name
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return result
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}
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func CreateThemeFromText(text string) (Theme, bool) {
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result := new(theme)
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result.init()
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ok := result.addText(text)
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return result, ok
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}
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func (theme *theme) init() {
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theme.constants = map[string]string{}
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theme.touchConstants = map[string]string{}
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theme.colors = map[string]string{}
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theme.darkColors = map[string]string{}
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theme.images = map[string]string{}
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theme.darkImages = map[string]string{}
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theme.styles = map[string]ViewStyle{}
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theme.mediaStyles = []mediaStyle{}
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}
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func (theme *theme) Name() string {
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return theme.name
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}
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func (theme *theme) Constant(tag string) (string, string) {
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return theme.constants[tag], theme.touchConstants[tag]
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}
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func (theme *theme) SetConstant(tag, value, touchUIValue string) {
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value = strings.Trim(value, " \t")
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if value == "" {
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delete(theme.constants, tag)
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delete(theme.touchConstants, tag)
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} else {
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theme.constants[tag] = value
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touchUIValue = strings.Trim(touchUIValue, " \t")
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if touchUIValue == "" {
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delete(theme.touchConstants, tag)
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} else {
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theme.touchConstants[tag] = touchUIValue
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}
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}
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}
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func (theme *theme) Color(tag string) (string, string) {
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return theme.colors[tag], theme.darkColors[tag]
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}
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func (theme *theme) SetColor(tag, color, darkUIColor string) {
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color = strings.Trim(color, " \t")
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if color == "" {
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delete(theme.colors, tag)
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delete(theme.darkColors, tag)
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} else {
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theme.colors[tag] = color
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darkUIColor = strings.Trim(darkUIColor, " \t")
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if darkUIColor == "" {
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delete(theme.darkColors, tag)
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} else {
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theme.darkColors[tag] = darkUIColor
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}
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}
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}
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func (theme *theme) Image(tag string) (string, string) {
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return theme.images[tag], theme.darkImages[tag]
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}
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func (theme *theme) SetImage(tag, image, darkUIImage string) {
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image = strings.Trim(image, " \t")
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if image == "" {
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delete(theme.images, tag)
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delete(theme.darkImages, tag)
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} else {
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theme.images[tag] = image
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darkUIImage = strings.Trim(darkUIImage, " \t")
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if darkUIImage == "" {
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delete(theme.darkImages, tag)
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} else {
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theme.darkImages[tag] = darkUIImage
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}
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}
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}
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func (theme *theme) Style(tag string) ViewStyle {
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if style, ok := theme.styles[tag]; ok {
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return style
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}
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return nil
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}
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func (theme *theme) SetStyle(tag string, style ViewStyle) {
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if style != nil {
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theme.styles[tag] = style
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} else {
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delete(theme.styles, tag)
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}
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}
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func (theme *theme) MediaStyle(tag string, orientation, maxWidth, maxHeight int) ViewStyle {
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for _, styles := range theme.mediaStyles {
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if styles.orientation == orientation && styles.maxWidth == maxWidth && styles.maxHeight == maxHeight {
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if style, ok := styles.styles[tag]; ok {
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return style
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}
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}
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}
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if orientation == 0 && maxWidth <= 0 && maxHeight <= 0 {
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return theme.style(tag)
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}
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return nil
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}
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func (theme *theme) SetMediaStyle(tag string, orientation, maxWidth, maxHeight int, style ViewStyle) {
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if maxWidth < 0 {
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maxWidth = 0
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}
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if maxHeight < 0 {
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maxHeight = 0
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}
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if orientation == DefaultMedia && maxWidth == 0 && maxHeight == 0 {
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theme.SetStyle(tag, style)
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return
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}
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for i, styles := range theme.mediaStyles {
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if styles.orientation == orientation && styles.maxWidth == maxWidth && styles.maxHeight == maxHeight {
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if style != nil {
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theme.mediaStyles[i].styles[tag] = style
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} else {
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delete(theme.mediaStyles[i].styles, tag)
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}
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break
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}
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}
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if style != nil {
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theme.mediaStyles = append(theme.mediaStyles, mediaStyle{
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orientation: orientation,
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maxWidth: maxWidth,
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maxHeight: maxHeight,
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styles: map[string]ViewStyle{tag: style},
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})
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theme.sortMediaStyles()
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}
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}
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func (theme *theme) ConstantTags() []string {
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keys := make([]string, 0, len(theme.constants))
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for k := range theme.constants {
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keys = append(keys, k)
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}
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for tag := range theme.touchConstants {
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if _, ok := theme.constants[tag]; !ok {
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keys = append(keys, tag)
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}
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}
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sort.Strings(keys)
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return keys
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}
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func (theme *theme) ColorTags() []string {
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keys := make([]string, 0, len(theme.colors))
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for k := range theme.colors {
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keys = append(keys, k)
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}
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for tag := range theme.darkColors {
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if _, ok := theme.colors[tag]; !ok {
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keys = append(keys, tag)
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}
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}
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sort.Strings(keys)
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return keys
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}
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func (theme *theme) ImageConstantTags() []string {
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keys := make([]string, 0, len(theme.colors))
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for k := range theme.images {
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keys = append(keys, k)
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}
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for tag := range theme.darkImages {
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if _, ok := theme.images[tag]; !ok {
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keys = append(keys, tag)
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}
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}
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sort.Strings(keys)
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return keys
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}
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func (theme *theme) StyleTags() []string {
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keys := make([]string, 0, len(theme.styles)*2)
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appendTag := func(k string) {
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n := sort.SearchStrings(keys, k)
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if n >= len(keys) {
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keys = append(keys, k)
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} else if keys[n] != k {
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if n == 0 {
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keys = append([]string{k}, keys...)
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} else {
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keys = append(keys[:n+1], keys[n:]...)
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keys[n] = k
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}
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}
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}
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for k := range theme.styles {
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if index := strings.IndexRune(k, ':'); index < 0 {
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keys = append(keys, k)
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}
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}
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sort.Strings(keys)
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for k := range theme.styles {
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if index := strings.IndexRune(k, ':'); index > 0 {
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appendTag(k[:index])
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}
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}
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for _, media := range theme.mediaStyles {
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for k := range media.styles {
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index := strings.IndexRune(k, ':')
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if index > 0 {
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appendTag(k[:index])
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} else if index < 0 {
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appendTag(k)
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}
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}
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}
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return keys
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}
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func (theme *theme) MediaStyles(tag string) []struct {
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Selectors string
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Orientation, MaxWidth, MaxHeight int
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} {
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result := []struct {
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Selectors string
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Orientation, MaxWidth, MaxHeight int
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}{}
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prefix := tag + ":"
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prefixLen := len(prefix)
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for themeTag := range theme.styles {
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if strings.HasPrefix(themeTag, prefix) {
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result = append(result, struct {
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Selectors string
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Orientation, MaxWidth, MaxHeight int
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}{
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Selectors: themeTag[prefixLen:],
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Orientation: DefaultMedia,
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MaxWidth: 0,
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MaxHeight: 0,
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})
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}
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}
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for _, media := range theme.mediaStyles {
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if _, ok := media.styles[tag]; ok {
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result = append(result, struct {
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Selectors string
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Orientation, MaxWidth, MaxHeight int
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}{
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Selectors: "",
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Orientation: media.orientation,
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MaxWidth: media.maxWidth,
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MaxHeight: media.maxHeight,
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})
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}
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for themeTag := range media.styles {
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if strings.HasPrefix(themeTag, prefix) {
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result = append(result, struct {
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Selectors string
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Orientation, MaxWidth, MaxHeight int
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}{
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Selectors: themeTag[prefixLen:],
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Orientation: media.orientation,
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MaxWidth: media.maxWidth,
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MaxHeight: media.maxHeight,
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})
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}
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}
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}
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return result
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}
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func (theme *theme) data() *theme {
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return theme
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}
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func (theme *theme) Append(anotherTheme Theme) {
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if theme.constants == nil {
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theme.init()
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}
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another := anotherTheme.data()
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for tag, constant := range another.constants {
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theme.constants[tag] = constant
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}
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for tag, constant := range another.touchConstants {
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theme.touchConstants[tag] = constant
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}
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for tag, color := range another.colors {
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theme.colors[tag] = color
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}
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for tag, color := range another.darkColors {
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theme.darkColors[tag] = color
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}
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for tag, image := range another.images {
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theme.images[tag] = image
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}
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for tag, image := range another.darkImages {
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theme.darkImages[tag] = image
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}
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for tag, style := range another.styles {
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theme.styles[tag] = style
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}
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for _, anotherMedia := range another.mediaStyles {
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exists := false
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for _, media := range theme.mediaStyles {
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if anotherMedia.maxHeight == media.maxHeight &&
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anotherMedia.maxWidth == media.maxWidth &&
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anotherMedia.orientation == media.orientation {
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for tag, style := range anotherMedia.styles {
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media.styles[tag] = style
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}
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exists = true
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break
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}
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}
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if !exists {
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theme.mediaStyles = append(theme.mediaStyles, anotherMedia)
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}
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}
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}
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func (theme *theme) cssText(session Session) string {
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if theme.styles == nil {
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theme.init()
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return ""
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}
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var builder cssStyleBuilder
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builder.init()
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styleList := func(styles map[string]ViewStyle) []string {
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ruiStyles := []string{}
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customStyles := []string{}
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for tag := range styles {
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if strings.HasPrefix(tag, "rui") {
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ruiStyles = append(ruiStyles, tag)
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} else {
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customStyles = append(customStyles, tag)
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}
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}
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sort.Strings(ruiStyles)
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sort.Strings(customStyles)
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return append(ruiStyles, customStyles...)
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}
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for _, tag := range styleList(theme.styles) {
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if style := theme.styles[tag]; style != nil {
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builder.startStyle(tag)
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style.cssViewStyle(&builder, session)
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builder.endStyle()
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}
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}
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for _, media := range theme.mediaStyles {
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builder.startMedia(media.cssText())
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for _, tag := range styleList(media.styles) {
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if style := media.styles[tag]; style != nil {
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builder.startStyle(tag)
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style.cssViewStyle(&builder, session)
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builder.endStyle()
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}
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}
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builder.endMedia()
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}
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return builder.finish()
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}
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func (theme *theme) addText(themeText string) bool {
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if theme.constants == nil {
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theme.init()
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}
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data := ParseDataText(themeText)
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if data == nil || !data.IsObject() || data.Tag() != "theme" {
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return false
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}
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count := data.PropertyCount()
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objToStyle := func(obj DataObject) ViewStyle {
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params := Params{}
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for i := 0; i < obj.PropertyCount(); i++ {
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if node := obj.Property(i); node != nil {
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switch node.Type() {
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case ArrayNode:
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params[node.Tag()] = node.ArrayElements()
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case ObjectNode:
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params[node.Tag()] = node.Object()
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default:
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params[node.Tag()] = node.Text()
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}
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}
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}
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return NewViewStyle(params)
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}
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|
|
for i := 0; i < count; i++ {
|
|
if d := data.Property(i); d != nil {
|
|
switch tag := d.Tag(); tag {
|
|
case "constants":
|
|
if d.Type() == ObjectNode {
|
|
if obj := d.Object(); obj != nil {
|
|
objCount := obj.PropertyCount()
|
|
for k := 0; k < objCount; k++ {
|
|
if prop := obj.Property(k); prop != nil && prop.Type() == TextNode {
|
|
theme.constants[prop.Tag()] = prop.Text()
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
case "constants:touch":
|
|
if d.Type() == ObjectNode {
|
|
if obj := d.Object(); obj != nil {
|
|
objCount := obj.PropertyCount()
|
|
for k := 0; k < objCount; k++ {
|
|
if prop := obj.Property(k); prop != nil && prop.Type() == TextNode {
|
|
theme.touchConstants[prop.Tag()] = prop.Text()
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
case "colors":
|
|
if d.Type() == ObjectNode {
|
|
if obj := d.Object(); obj != nil {
|
|
objCount := obj.PropertyCount()
|
|
for k := 0; k < objCount; k++ {
|
|
if prop := obj.Property(k); prop != nil && prop.Type() == TextNode {
|
|
theme.colors[prop.Tag()] = prop.Text()
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
case "colors:dark":
|
|
if d.Type() == ObjectNode {
|
|
if obj := d.Object(); obj != nil {
|
|
objCount := obj.PropertyCount()
|
|
for k := 0; k < objCount; k++ {
|
|
if prop := obj.Property(k); prop != nil && prop.Type() == TextNode {
|
|
theme.darkColors[prop.Tag()] = prop.Text()
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
case "images":
|
|
if d.Type() == ObjectNode {
|
|
if obj := d.Object(); obj != nil {
|
|
objCount := obj.PropertyCount()
|
|
for k := 0; k < objCount; k++ {
|
|
if prop := obj.Property(k); prop != nil && prop.Type() == TextNode {
|
|
theme.images[prop.Tag()] = prop.Text()
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
case "images:dark":
|
|
if d.Type() == ObjectNode {
|
|
if obj := d.Object(); obj != nil {
|
|
objCount := obj.PropertyCount()
|
|
for k := 0; k < objCount; k++ {
|
|
if prop := obj.Property(k); prop != nil && prop.Type() == TextNode {
|
|
theme.darkImages[prop.Tag()] = prop.Text()
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
case "styles":
|
|
if d.Type() == ArrayNode {
|
|
arraySize := d.ArraySize()
|
|
for k := 0; k < arraySize; k++ {
|
|
if element := d.ArrayElement(k); element != nil && element.IsObject() {
|
|
if obj := element.Object(); obj != nil {
|
|
theme.styles[obj.Tag()] = objToStyle(obj)
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
default:
|
|
if d.Type() == ArrayNode && strings.HasPrefix(tag, "styles:") {
|
|
if rule, ok := parseMediaRule(tag); ok {
|
|
arraySize := d.ArraySize()
|
|
for k := 0; k < arraySize; k++ {
|
|
if element := d.ArrayElement(k); element != nil && element.IsObject() {
|
|
if obj := element.Object(); obj != nil {
|
|
rule.styles[obj.Tag()] = objToStyle(obj)
|
|
}
|
|
}
|
|
}
|
|
theme.mediaStyles = append(theme.mediaStyles, rule)
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
theme.sortMediaStyles()
|
|
return true
|
|
}
|
|
|
|
func (theme *theme) sortMediaStyles() {
|
|
if len(theme.mediaStyles) > 1 {
|
|
sort.SliceStable(theme.mediaStyles, func(i, j int) bool {
|
|
if theme.mediaStyles[i].orientation != theme.mediaStyles[j].orientation {
|
|
return theme.mediaStyles[i].orientation < theme.mediaStyles[j].orientation
|
|
}
|
|
if theme.mediaStyles[i].maxWidth != theme.mediaStyles[j].maxWidth {
|
|
return theme.mediaStyles[i].maxWidth < theme.mediaStyles[j].maxWidth
|
|
}
|
|
return theme.mediaStyles[i].maxHeight < theme.mediaStyles[j].maxHeight
|
|
})
|
|
}
|
|
}
|
|
|
|
func (theme *theme) constant(tag string, touchUI bool) string {
|
|
result := ""
|
|
if touchUI {
|
|
if value, ok := theme.touchConstants[tag]; ok {
|
|
result = value
|
|
}
|
|
}
|
|
if result == "" {
|
|
if value, ok := theme.constants[tag]; ok {
|
|
result = value
|
|
}
|
|
}
|
|
return result
|
|
}
|
|
|
|
func (theme *theme) color(tag string, darkUI bool) string {
|
|
result := ""
|
|
if darkUI {
|
|
if value, ok := theme.darkColors[tag]; ok {
|
|
result = value
|
|
}
|
|
}
|
|
if result == "" {
|
|
if value, ok := theme.colors[tag]; ok {
|
|
result = value
|
|
}
|
|
}
|
|
return result
|
|
}
|
|
|
|
func (theme *theme) image(tag string, darkUI bool) string {
|
|
result := ""
|
|
if darkUI {
|
|
if value, ok := theme.darkImages[tag]; ok {
|
|
result = value
|
|
}
|
|
}
|
|
if result == "" {
|
|
if value, ok := theme.images[tag]; ok {
|
|
result = value
|
|
}
|
|
}
|
|
return result
|
|
}
|
|
|
|
func (theme *theme) style(tag string) ViewStyle {
|
|
if style, ok := theme.styles[tag]; ok {
|
|
return style
|
|
}
|
|
|
|
return nil
|
|
}
|
|
|
|
func (theme *theme) String() string {
|
|
buffer := allocStringBuilder()
|
|
defer freeStringBuilder(buffer)
|
|
|
|
writeString := func(text string) {
|
|
if strings.ContainsAny(text, " \t\n\r\\\"'`,;{}[]()") {
|
|
replace := []struct{ old, new string }{
|
|
{old: "\\", new: `\\`},
|
|
{old: "\t", new: `\t`},
|
|
{old: "\r", new: `\r`},
|
|
{old: "\n", new: `\n`},
|
|
{old: "\"", new: `\"`},
|
|
}
|
|
for _, s := range replace {
|
|
text = strings.Replace(text, s.old, s.new, -1)
|
|
}
|
|
buffer.WriteRune('"')
|
|
buffer.WriteString(text)
|
|
buffer.WriteRune('"')
|
|
} else {
|
|
buffer.WriteString(text)
|
|
}
|
|
}
|
|
|
|
writeConstants := func(tag string, constants map[string]string) {
|
|
count := len(constants)
|
|
if count == 0 {
|
|
return
|
|
}
|
|
|
|
buffer.WriteString("\t")
|
|
buffer.WriteString(tag)
|
|
buffer.WriteString(" = _{\n")
|
|
|
|
tags := make([]string, 0, count)
|
|
for name := range constants {
|
|
tags = append(tags, name)
|
|
}
|
|
sort.Strings(tags)
|
|
for _, name := range tags {
|
|
if value, ok := constants[name]; ok && value != "" {
|
|
buffer.WriteString("\t\t")
|
|
writeString(name)
|
|
buffer.WriteString(" = ")
|
|
writeString(value)
|
|
buffer.WriteString(",\n")
|
|
}
|
|
}
|
|
|
|
buffer.WriteString("\t},\n")
|
|
}
|
|
|
|
buffer.WriteString("theme {\n")
|
|
writeConstants("colors", theme.colors)
|
|
writeConstants("colors:dark", theme.darkColors)
|
|
writeConstants("images", theme.images)
|
|
writeConstants("images:dark", theme.darkImages)
|
|
writeConstants("constants", theme.constants)
|
|
writeConstants("constants:touch", theme.touchConstants)
|
|
|
|
writeStyles := func(orientation, maxWidth, maxHeihgt int, styles map[string]ViewStyle) bool {
|
|
count := len(styles)
|
|
if count == 0 {
|
|
return false
|
|
}
|
|
|
|
tags := make([]string, 0, count)
|
|
for name := range styles {
|
|
tags = append(tags, name)
|
|
}
|
|
sort.Strings(tags)
|
|
|
|
buffer.WriteString("\tstyles")
|
|
switch orientation {
|
|
case PortraitMedia:
|
|
buffer.WriteString(":portrait")
|
|
|
|
case LandscapeMedia:
|
|
buffer.WriteString(":landscape")
|
|
}
|
|
if maxWidth > 0 {
|
|
buffer.WriteString(fmt.Sprintf(":width%d", maxWidth))
|
|
}
|
|
if maxHeihgt > 0 {
|
|
buffer.WriteString(fmt.Sprintf(":heihgt%d", maxHeihgt))
|
|
}
|
|
buffer.WriteString(" = [\n")
|
|
|
|
for _, tag := range tags {
|
|
if style, ok := styles[tag]; ok {
|
|
buffer.WriteString("\t\t")
|
|
writeViewStyle(tag, style, buffer, "\t\t")
|
|
buffer.WriteString(",")
|
|
}
|
|
}
|
|
buffer.WriteString("\t],\n")
|
|
return true
|
|
}
|
|
|
|
writeStyles(0, 0, 0, theme.styles)
|
|
for _, media := range theme.mediaStyles {
|
|
writeStyles(media.orientation, media.maxWidth, media.maxHeight, media.styles)
|
|
}
|
|
|
|
buffer.WriteString("}\n")
|
|
return buffer.String()
|
|
}
|