bgcolor.go RawHistoryFolder

1package webkit
2
3import (
4	"sync"
5
6	"github.com/bnema/puregotk/v4/gdk"
7)
8
9// bgColor holds RGBA components for WebView background color (eliminates white flash).
10// It is thread-safe and can be embedded in pool/factory structs.
11type bgColor struct {
12	r, g, b, a float32
13	mu         sync.RWMutex
14}
15
16// set stores the background color components.
17func (c *bgColor) set(r, g, b, a float32) {
18	c.mu.Lock()
19	c.r, c.g, c.b, c.a = r, g, b, a
20	c.mu.Unlock()
21}
22
23// get returns the background color components.
24func (c *bgColor) get() (r, g, b, a float32) {
25	c.mu.RLock()
26	r, g, b, a = c.r, c.g, c.b, c.a
27	c.mu.RUnlock()
28	return
29}
30
31// toGdkRGBA returns a *gdk.RGBA if a valid color is configured (alpha > 0), nil otherwise.
32func (c *bgColor) toGdkRGBA() *gdk.RGBA {
33	r, g, b, a := c.get()
34	if a <= 0 {
35		return nil
36	}
37	return &gdk.RGBA{Red: r, Green: g, Blue: b, Alpha: a}
38}