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icefox 2025-12-26 11:49:56 -03:00
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>{{.Title}}</title>
<script src="/assets/alpine.min.js" defer></script>
<style>
* { margin: 0; padding: 0; box-sizing: border-box; }
body { background: black; height: 100vh; overflow: hidden; }
.page {
width: 100vw;
height: 100vh;
background-size: contain;
background-repeat: no-repeat;
background-position: center;
}
.page.landscape {
width: 100vh;
height: 100vw;
transform: rotate(270deg) translateY(-50%);
transform-origin: top right;
}
</style>
</head>
<body>
<div
x-data="{
current: 0,
landscape: false,
width: 1080,
height: 1920,
imaginary: '{{.ImaginaryURL}}',
pages: [{{range $i, $p := .Pages}}{{if $i}},{{end}}{path: '{{$p.Path}}', prefix: '{{$p.Prefix}}'}{{end}}],
urls: [],
prefetched: new Set(),
buildUrls() {
this.urls = this.pages.map(p => {
if (p.prefix === 'imaginary') {
return this.imaginary + '/fit?width=' + this.width + '&height=' + this.height + '&file=' + encodeURIComponent(p.path);
}
return '/static/' + p.path;
});
this.prefetched.clear();
},
prefetch() {
const img = new Image();
img.onload = () => {
for (let i = 1; i <= 10 && this.current + i < this.urls.length; i++) {
const url = this.urls[this.current + i];
if (!this.prefetched.has(url)) {
this.prefetched.add(url);
new Image().src = url;
}
}
};
img.src = this.urls[this.current];
},
swap() {
this.landscape = !this.landscape;
[this.width, this.height] = [this.height, this.width];
this.buildUrls();
},
init() {
this.buildUrls();
this.prefetch();
this.$watch('current', () => this.prefetch());
}
}"
@keydown.window.left.prevent="current = Math.max(0, current - 1)"
@keydown.window.right.prevent="current = Math.min(urls.length - 1, current + 1)"
@keydown.window.k.prevent="swap()"
@keydown.window.backspace.prevent="history.back()"
autofocus
>
<div class="page" :class="landscape ? 'landscape' : ''" :style="'background-image: url(\'' + urls[current] + '\');'"></div>
</div>
</body>
</html>