AverageMarcus/photo-go
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Make cropping optional via query string

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This commit is contained in:
Marcus Noble 2021-04-11 14:55:22 +01:00
parent bec393cde7
commit af92e8436f
2 changed files with 65 additions and 9 deletions
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56
index.html
View File

@ -3,6 +3,13 @@
<head>
<title>Photos</title>
<style>
html, body {
margin: 0;
padding: 0;
height: 100vh;
width: 100vw;
overflow: hidden;
}
.image {
position: absolute;
top: 0;
@ -10,25 +17,57 @@
height: 100vh;
width: 100vw;
display: block;
background-size: cover;
background-repeat: no-repeat;
opacity: 0;
text-align: center;
-webkit-transition: opacity 3s ease-in-out;
-moz-transition: opacity 3s ease-in-out;
-o-transition: opacity 3s ease-in-out;
transition: opacity 3s ease-in-out;
}
.image .bg {
display: block;
position: absolute;
top: 0;
left: 0;
height: 100vh;
width: 100vw;
z-index: -1;
background-size: cover;
background-repeat: no-repeat;
background-position: center center;
filter: blur(30px);
-webkit-filter: blur(30px);
-moz-filter: blur(30px);
-o-filter: blur(30px);
-ms-filter: blur(30px);
}
.image.active {
opacity: 1;
}
.image img {
max-height: 100vh;
max-width: 100vw;
position: relative;
top: 50%;
transform: translateY(-50%);
}
</style>
</head>
<body>
<div class="image active"></div>
<div class="image"></div>
<div class="image active">
<div class="bg"></div>
<img />
</div>
<div class="image">
<div class="bg"></div>
<img />
</div>
<script type="text/javascript">
let crop = window.location.search.includes("crop");
function process() {
const width = document.documentElement.clientWidth;
const height = document.documentElement.clientHeight;
@ -37,9 +76,14 @@
let nextElement = document.querySelector('.image:not(.active)');
let im = new Image();
im.src = `/image/?width=${width}&height=${height}&ts=${timestamp}`;
im.src = `/image/?width=${width}&height=${height}&ts=${timestamp}&crop=${crop ? 'true' : 'false'}`;
if (crop) {
im.style.width = "100vw";
im.style.height = "100vh";
}
im.onload = function() {
nextElement.style.backgroundImage = `url('${im.src}')`;
nextElement.querySelector('.bg').style.backgroundImage = `url('${im.src}')`;
nextElement.replaceChild(im, nextElement.querySelector('img'));
[...document.querySelectorAll('.image')].forEach(el => el.classList.toggle('active'));
setTimeout(process, 5000);
};

18
main.go
View File

@ -10,6 +10,7 @@ import (
"os"
"path/filepath"
"strconv"
"strings"
"github.com/artyom/smartcrop"
"github.com/edwvee/exiffix"
@ -32,11 +33,17 @@ func main() {
})
app.Get("/image", func(c *fiber.Ctx) error {
photos, _ := filepath.Glob(filepath.Join(imageDirectory, "*.jpg"))
photos, _ := filepath.Glob(filepath.Join(imageDirectory, "*.[jJ][pP][gG]"))
photo := photos[rand.Intn(len(photos))]
width, _ := strconv.Atoi(c.Query("width", "1280"))
height, _ := strconv.Atoi(c.Query("height", "800"))
img := cropImage(photos[rand.Intn(len(photos))], width, height)
var img image.Image
if strings.ToLower(c.Query("crop")) == "true" {
img = cropImage(photo, width, height)
} else {
img = loadImage(photo)
}
buf := new(bytes.Buffer)
jpeg.Encode(buf, img, &jpeg.Options{Quality: 100})
@ -48,7 +55,7 @@ func main() {
app.Listen(":3000")
}
func cropImage(imgSrc string, width, height int) image.Image {
func loadImage(imgSrc string) image.Image {
f, err := os.Open(imgSrc)
if err != nil {
log.Fatal(err)
@ -59,6 +66,11 @@ func cropImage(imgSrc string, width, height int) image.Image {
if err != nil {
log.Fatal(err)
}
return img
}
func cropImage(imgSrc string, width, height int) image.Image {
img := loadImage(imgSrc)
topCrop, err := smartcrop.Crop(img, width, height)
if err != nil {