1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
|
package glightbox
import (
"bytes"
"fmt"
"math/rand"
"strings"
"time"
"github.com/yuin/goldmark"
"github.com/yuin/goldmark/ast"
"github.com/yuin/goldmark/renderer"
"github.com/yuin/goldmark/renderer/html"
"github.com/yuin/goldmark/util"
)
type GLightboxHTMLRenderer struct {
html.Config
md goldmark.Markdown
}
func NewGLightboxHTMLRenderer(opts ...html.Option) renderer.NodeRenderer {
r := &GLightboxHTMLRenderer{
Config: html.NewConfig(),
md: goldmark.New(
goldmark.WithRendererOptions(
html.WithHardWraps(),
html.WithXHTML(),
),
),
}
for _, opt := range opts {
opt.SetHTMLOption(&r.Config)
}
return r
}
func (r *GLightboxHTMLRenderer) RegisterFuncs(reg renderer.NodeRendererFuncRegisterer) {
reg.Register(KindGLightboxBlock, r.renderGLightbox)
}
func (r *GLightboxHTMLRenderer) renderGLightbox(w util.BufWriter, source []byte, n ast.Node, entering bool) (ast.WalkStatus, error) {
if entering {
gallery := n.(*GLightboxBlock)
if len(gallery.Images) == 0 {
return ast.WalkContinue, nil
}
galleryID := generateDivId(8)
var elements []string
for i, img := range gallery.Images {
imageUrlSegments := strings.Split(img.URL, ".")
imageUrlWithoutExt := strings.Join(imageUrlSegments[:len(imageUrlSegments)-1], ".")
imageUrlParts := strings.Split(imageUrlWithoutExt, "/")
imageNameParts := strings.Split(imageUrlParts[len(imageUrlParts)-1], "-")
var captionBuf bytes.Buffer
captionHTML := img.Caption
if err := r.md.Convert(img.Caption, &captionBuf); err == nil {
captionHTML = captionBuf.Bytes()
captionHTML = bytes.TrimPrefix(captionHTML, []byte("<p>"))
captionHTML = bytes.TrimSuffix(captionHTML, []byte("</p>\n"))
captionHTML = bytes.TrimSuffix(captionHTML, []byte("</p>"))
}
dayDate, _ := time.Parse("20060102 150405", imageNameParts[len(imageNameParts)-2]+" "+imageNameParts[len(imageNameParts)-1])
dayDate = dayDate.In(gallery.Location)
glightboxDescId := ""
if len(captionHTML) != 0 {
glightboxDescId = fmt.Sprintf("glightbox-desc-%s-%d", galleryID, i)
}
dataDescriptionAttribute := ""
if glightboxDescId != "" {
dataDescriptionAttribute = fmt.Sprintf("data-description=\".%s\"", glightboxDescId)
}
elements = append(elements, fmt.Sprintf(`
<a href="https://f003.backblazeb2.com/file/sayana-photos/full/%s" class="glightbox-%s grid-item grid-item-%s"
data-gallery="gallery-%s" data-title="%s" %s>
<img src="https://f003.backblazeb2.com/file/sayana-photos/webp-320p/%s.webp" class="rounded-md p-1" alt="webp thumbnail" />
</a>`, img.URL, galleryID, galleryID, galleryID, dayDate.Format("2006-01-02 15:04:05 -07:00"), dataDescriptionAttribute, imageUrlWithoutExt))
if glightboxDescId != "" {
elements = append(elements, fmt.Sprintf(`
<div class="glightbox-desc rounded-4 %s">
<p>%s</p>
</div>`, glightboxDescId, captionHTML))
}
}
w.WriteString(fmt.Sprintf(`
<div class="justify-content-center display-block m-1">
<hr class="border-t-3 border-dotted border-main-dark mt-1 mb-2 w-[80%%] ml-auto mr-auto">
<div class="grid masonry-grid-%s">
<div class="grid-sizer grid-sizer-%s"></div>
%s
</div>
<hr class="border-t-3 border-dotted border-main-dark mt-1 mb-2 w-[80%%] ml-auto mr-auto">
</div>`, galleryID, galleryID, strings.Join(elements, "\n")))
w.WriteString(fmt.Sprintf(`
<script>
var lightbox_%s = GLightbox({
selector: '.glightbox-%s'
});
var msnry_%s = new Masonry('.masonry-grid-%s', {
itemSelector: '.grid-item-%s',
columnWidth: '.grid-sizer-%s',
percentPosition: true
});
imagesLoaded('.masonry-grid-%s', function() {
msnry_%s.layout();
});
</script>`, galleryID, galleryID, galleryID, galleryID, galleryID, galleryID, galleryID, galleryID))
}
return ast.WalkContinue, nil
}
func generateDivId(length int) string {
const charset = "abcdefghijklmnopqrstuvwxyz"
seededRand := rand.New(rand.NewSource(time.Now().UnixNano())) // Seed with current time
b := make([]byte, length)
for i := range b {
b[i] = charset[seededRand.Intn(len(charset))]
}
return string(b)
}
|
