Author: LakeFox
Email: [email protected]
Date: Wed, 16 Oct 2024 20:39:31 -0600
cstyle/transformers/background/main.go
fixed bg issue
Commits
ae78990ed5b06e02833bd8e578a3af1df49adc00 ae742fdbda42322f4fa1d30761f516bf1ad45a70 1ae1fe418977632fafe3e61c5f02e87f0cad6c87 099527773e9bc03b40b9ce5d8a492ebbcdebcf32 b6acff3a27a7c66e35ab7ea5ffe48f1a69efaf11 07144afe32b8dd752fc4d80efd81529e2df9e4e5 ca735fa2c136dd5f35a5ccf2ffe2133b906c7f94 e2ea9c897ee1e89f89cd5c043632326348191b3a 10f4ce166028ee8ff926170d4d9e17d54e63a4a4 4bd704181610864a1fc4ebe65f20220ea1f1c00b 1c468e139a0f87655e4222b8512c38bec429d067 d8d6cadd2741b05c7a121ccb6753c5a48b8ad1b4 4c0529a8475408ee41d4e4dbd9c969db14594d37 ed8180f077d294d1e2f347f6c30d2977e8670b42 9113424c26a247352fe7b111fff39d1562f6c342 f783d5cacccf047368f8f20fc687bf5ad8f6f66a 66084134570c2a3d87e1336a2ab2ca50341b93b2 031df3b2fd4851345dd6f4c443057141d5b9e65b baf5d8cc1ccf27d14e4e58edcc4c170bba6445df e9c8f7961cf8b188938535b318b50397a76268ba 29572e238d6ba3f401717032bd12a2f409bf1ea9 d6025b04ef9516745adae85a478cbf9f98433597 476d6415583067674f395660961e33b9b40c3e66 906dd99de66ad7df92011a52fb19e0319224741e 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Diff 
diff --git a/cstyle/transformers/background/main.go b/cstyle/transformers/background/main.go
deleted file mode 100644
index a95e9e6..0000000
--- a/cstyle/transformers/background/main.go
+++ /dev/null
@@ -1,110 +0,0 @@
-package background
-
-import (
-	"gui/cstyle"
-	"gui/element"
-	"regexp"
-	"strings"
-)
-
-func Init() cstyle.Transformer {
-	return cstyle.Transformer{
-		Selector: func(n *element.Node) bool {
-			return n.Style["background"] != ""
-		},
-		Handler: func(n *element.Node, c *cstyle.CSS) *element.Node {
-			parsed := ParseBackground(n.Style["background"])
-
-			// Print result
-			for key, value := range parsed {
-				if value != "" {
-					n.Style[key] = value
-				}
-			}
-
-			return n
-		},
-	}
-}
-
-// ParseBackground takes a CSS background shorthand and returns a map of its component parts.
-func ParseBackground(background string) map[string]string {
-	parts := splitBackground(background)
-	result := make(map[string]string)
-
-	// Default component properties
-	result["background-color"] = ""
-	result["background-image"] = "none"
-	result["background-repeat"] = "repeat"
-	result["background-position"] = "0% 0%"
-	result["background-size"] = "auto"
-	result["background-attachment"] = "scroll"
-	result["background-origin"] = "padding-box"
-	result["background-clip"] = "border-box"
-
-	for _, part := range parts {
-		switch {
-		// Handle background-image (assuming url format)
-		case strings.HasPrefix(part, "url("):
-			result["background-image"] = part
-
-		// Handle background-repeat (no-repeat, repeat-x, repeat-y)
-		case part == "no-repeat" || part == "repeat" || part == "repeat-x" || part == "repeat-y":
-			result["background-repeat"] = part
-
-		// Handle background-attachment (scroll or fixed)
-		case part == "scroll" || part == "fixed":
-			result["background-attachment"] = part
-
-		// Handle background-position (percentage or predefined values)
-		case strings.Contains(part, "%") || isPosition(part):
-			result["background-position"] = part
-
-		// Handle background-size (contain, cover, or specific size)
-		case part == "contain" || part == "cover" || strings.Contains(part, "px") || strings.Contains(part, "%"):
-			result["background-size"] = part
-
-		// Handle background-origin (border-box, padding-box, content-box)
-		case part == "border-box" || part == "padding-box" || part == "content-box":
-			result["background-origin"] = part
-			result["background-clip"] = part // background-clip defaults to the same as background-origin
-
-		// Handle background-color (rgb, rgba, hsl, hsla)
-		case isColorFunction(part):
-			result["background-color"] = part
-
-		// Handle background-color for basic colors or unknown values
-		default:
-			result["background-color"] = part
-		}
-	}
-
-	return result
-}
-
-// Helper to split background properties while preserving functions like rgb(), rgba(), hsl(), etc.
-func splitBackground(background string) []string {
-	// Use a regular expression to match functions like rgb(), rgba(), hsl(), hsla()
-	regex := regexp.MustCompile(`(rgba?\([^\)]+\)|hsla?\([^\)]+\)|\S+)`)
-	return regex.FindAllString(background, -1)
-}
-
-// Helper to check if a string is a valid CSS color function (e.g., rgb(), rgba(), hsl(), hsla())
-func isColorFunction(value string) bool {
-	// Check for rgb(), rgba(), hsl(), or hsla() functions
-	return strings.HasPrefix(value, "rgb(") ||
-		strings.HasPrefix(value, "rgba(") ||
-		strings.HasPrefix(value, "hsl(") ||
-		strings.HasPrefix(value, "hsla(")
-}
-
-// Helper to check if a string is a valid background position
-func isPosition(value string) bool {
-	positions := []string{"left", "right", "top", "bottom", "center"}
-	for _, pos := range positions {
-		if value == pos {
-			return true
-		}
-	}
-	return false
-}

package background

import (
	"gui/cstyle"
	"gui/element"
	"regexp"
	"strings"
)

func Init() cstyle.Transformer {
	return cstyle.Transformer{
		Selector: func(n *element.Node) bool {
			return n.Style["background"] != ""
		},
		Handler: func(n *element.Node, c *cstyle.CSS) *element.Node {
			parsed := ParseBackground(n.Style["background"])

			// Print result
			for key, value := range parsed {
				if value != "" {
					n.Style[key] = value
				}
			}

			return n
		},
	}
}

// ParseBackground takes a CSS background shorthand and returns a map of its component parts.
func ParseBackground(background string) map[string]string {
	parts := splitBackground(background)
	result := make(map[string]string)

	// Default component properties
	result["background-color"] = ""
	result["background-image"] = "none"
	result["background-repeat"] = "repeat"
	result["background-position"] = "0% 0%"
	result["background-size"] = "auto"
	result["background-attachment"] = "scroll"
	result["background-origin"] = "padding-box"
	result["background-clip"] = "border-box"

	for _, part := range parts {
		switch {
		// Handle background-image (assuming url format)
		case strings.HasPrefix(part, "url("):
			result["background-image"] = part

		// Handle background-repeat (no-repeat, repeat-x, repeat-y)
		case part == "no-repeat" || part == "repeat" || part == "repeat-x" || part == "repeat-y":
			result["background-repeat"] = part

		// Handle background-attachment (scroll or fixed)
		case part == "scroll" || part == "fixed":
			result["background-attachment"] = part

		// Handle background-position (percentage or predefined values)
		case strings.Contains(part, "%") || isPosition(part):
			result["background-position"] = part

		// Handle background-size (contain, cover, or specific size)
		case part == "contain" || part == "cover" || strings.Contains(part, "px") || strings.Contains(part, "%"):
			result["background-size"] = part

		// Handle background-origin (border-box, padding-box, content-box)
		case part == "border-box" || part == "padding-box" || part == "content-box":
			result["background-origin"] = part
			result["background-clip"] = part // background-clip defaults to the same as background-origin

		// Handle background-color (rgb, rgba, hsl, hsla)
		case isColorFunction(part):
			result["background-color"] = part

		// Handle background-color for basic colors or unknown values
		default:
			result["background-color"] = part
		}
	}

	return result
}

// Helper to split background properties while preserving functions like rgb(), rgba(), hsl(), etc.
func splitBackground(background string) []string {
	// Use a regular expression to match functions like rgb(), rgba(), hsl(), hsla()
	regex := regexp.MustCompile(`(rgba?\([^\)]+\)|hsla?\([^\)]+\)|\S+)`)
	return regex.FindAllString(background, -1)
}

// Helper to check if a string is a valid CSS color function (e.g., rgb(), rgba(), hsl(), hsla())
func isColorFunction(value string) bool {
	// Check for rgb(), rgba(), hsl(), or hsla() functions
	return strings.HasPrefix(value, "rgb(") ||
		strings.HasPrefix(value, "rgba(") ||
		strings.HasPrefix(value, "hsl(") ||
		strings.HasPrefix(value, "hsla(")
}

// Helper to check if a string is a valid background position
func isPosition(value string) bool {
	positions := []string{"left", "right", "top", "bottom", "center"}
	for _, pos := range positions {
		if value == pos {
			return true
		}
	}
	return false
}