From db5d5414db12de49a092d736539e9c454e5fa61f Mon Sep 17 00:00:00 2001
From: not-nullptr <needhelpwithrift@gmail.com>
Date: Tue, 12 Nov 2024 00:23:51 +0000
Subject: [PATCH] fix: layout jump, feat: image preview

---
 src/app.css                                   |  2 +-
 src/lib/components/functional/Uploader.svelte |  1 +
 .../visual/effects/ProgressiveBlur.svelte     | 68 ++++++++++++++++
 src/lib/store/index.svelte.ts                 |  9 ++-
 src/routes/+layout.svelte                     | 36 ++++++---
 src/routes/+page.svelte                       | 79 ++++++++++++-------
 src/routes/convert/+page.svelte               | 63 ++++++++++-----
 7 files changed, 195 insertions(+), 63 deletions(-)
 create mode 100644 src/lib/components/visual/effects/ProgressiveBlur.svelte

diff --git a/src/app.css b/src/app.css
index 1905de8..4c409ed 100644
--- a/src/app.css
+++ b/src/app.css
@@ -21,5 +21,5 @@
 
 body {
 	@apply text-foreground bg-background font-body overflow-x-hidden;
-	padding-left: calc(100vw - 100%);
+	width: 100vw;
 }
diff --git a/src/lib/components/functional/Uploader.svelte b/src/lib/components/functional/Uploader.svelte
index 8138c51..469323e 100644
--- a/src/lib/components/functional/Uploader.svelte
+++ b/src/lib/components/functional/Uploader.svelte
@@ -55,6 +55,7 @@
 		if (!event.dataTransfer) return;
 		if (!files) files = Array.from(event.dataTransfer.files);
 		else files.push(...Array.from(event.dataTransfer.files));
+		onupload?.();
 		return true;
 	}
 
diff --git a/src/lib/components/visual/effects/ProgressiveBlur.svelte b/src/lib/components/visual/effects/ProgressiveBlur.svelte
new file mode 100644
index 0000000..1bdc6d3
--- /dev/null
+++ b/src/lib/components/visual/effects/ProgressiveBlur.svelte
@@ -0,0 +1,68 @@
+<script lang="ts">
+	type Props = {
+		iterations: number;
+		endIntensity: number;
+		direction: "top" | "left" | "bottom" | "right";
+		fadeTo?: string;
+	};
+
+	let {
+		iterations,
+		endIntensity,
+		direction,
+		fadeTo = "transparent",
+	}: Props = $props();
+
+	const getGradientDirection = () => {
+		switch (direction) {
+			case "top":
+				return "to top";
+			case "left":
+				return "to left";
+			case "bottom":
+				return "to bottom";
+			case "right":
+				return "to right";
+		}
+	};
+
+	const blurSteps = $derived(
+		Array.from({ length: iterations }, (_, i) => {
+			const blurIntensity =
+				(endIntensity / 2 ** (iterations - 1)) * 2 ** i;
+			const gradientStart = (i / iterations) * 100;
+			const gradientEnd = ((i + 1) / iterations) * 100;
+
+			return {
+				blurIntensity,
+				mask: `linear-gradient(${getGradientDirection()}, rgba(0, 0, 0, 0) ${gradientStart}%, rgba(0, 0, 0, 1) ${gradientEnd}%)`,
+			};
+		}),
+	);
+</script>
+
+<div class="w-full h-full relative">
+	{#each blurSteps as { blurIntensity, mask }, index}
+		<div
+			class="absolute w-full h-full"
+			style="
+        z-index: {index + 2};
+        backdrop-filter: blur({blurIntensity}px);
+        mask: {mask};
+      "
+		></div>
+	{/each}
+	<div
+		style="
+      z-index: {iterations + 2};
+      backdrop-filter: blur({endIntensity}px);
+      mask: linear-gradient({getGradientDirection()}, rgba(0, 0, 0, 0) ${(iterations /
+			(iterations + 1)) *
+			100}%, rgba(0, 0, 0, 1) 100%);
+    "
+	></div>
+	<div
+		class="absolute top-0 left-0 w-full h-full z-50"
+		style="background: linear-gradient({getGradientDirection()}, transparent 0%, {fadeTo} 100%);"
+	></div>
+</div>
diff --git a/src/lib/store/index.svelte.ts b/src/lib/store/index.svelte.ts
index 1db8e3e..ce27efc 100644
--- a/src/lib/store/index.svelte.ts
+++ b/src/lib/store/index.svelte.ts
@@ -1,7 +1,12 @@
 class Files {
-	public files = $state<File[]>([]);
+	public files = $state<
+		{
+			file: File;
+			to: string;
+			blobUrl: string;
+		}[]
+	>([]);
 	public conversionTypes = $state<string[]>([]);
-	public downloadFns = $state<(() => void)[]>([]);
 	public beenToConverterPage = $state(false);
 	public shouldShowAlert = $derived(
 		!this.beenToConverterPage && this.files.length > 0,
diff --git a/src/routes/+layout.svelte b/src/routes/+layout.svelte
index e57eac9..b1605a7 100644
--- a/src/routes/+layout.svelte
+++ b/src/routes/+layout.svelte
@@ -25,18 +25,30 @@
 	const linkIndex = $derived(
 		Object.keys(links).findIndex((link) => links[link] === data.pathname),
 	);
+
+	const maybeNavToHome = (e: DragEvent) => {
+		if (e.dataTransfer?.types.includes("Files")) {
+			e.preventDefault();
+			goto("/");
+		}
+	};
 </script>
 
-<div class="w-full h-full flex items-center pt-48 flex-col gap-10">
+<div
+	role="main"
+	class="w-full h-full flex items-center p-8 flex-col gap-8"
+	ondragenter={maybeNavToHome}
+>
 	<div
-		class="w-full max-w-screen-lg p-1 border-solid border-2 rounded-2xl border-foreground-muted-alt grid"
-		style="grid-template-columns: auto 1fr"
+		class="w-full max-w-screen-lg p-1 border-solid border-2 rounded-2xl border-foreground-muted-alt flex"
 	>
-		<div
-			class="px-4 m-1 mr-3 flex items-center bg-accent-background fill-accent-foreground rounded-xl"
-		>
-			<div class="h-6">
-				<Logo />
+		<div class="p-1">
+			<div
+				class="px-4 relative w-full h-full mr-3 justify-center items-center bg-accent-background fill-accent-foreground rounded-xl md:flex hidden"
+			>
+				<div class="h-6 items-center flex justify-center">
+					<Logo />
+				</div>
 			</div>
 		</div>
 
@@ -53,7 +65,7 @@
 			></div>
 			{#each Object.entries(links) as [name, link] (link)}
 				<button
-					class="w-1/2 h-full flex items-center justify-center rounded-xl relative font-display overflow-hidden"
+					class="w-1/2 px-2 h-full flex items-center justify-center rounded-xl relative font-display overflow-hidden"
 					onclick={() => {
 						const keys = Object.keys(links);
 						const currentIndex = keys.findIndex(
@@ -90,9 +102,11 @@
 			{/each}
 		</div>
 	</div>
-	<div class="w-full max-w-screen-lg grid grid-cols-1 grid-rows-1 relative">
+	<div
+		class="w-full max-w-screen-lg h-full grid grid-cols-1 grid-rows-1 relative"
+	>
 		{#key data.pathname}
-			<div class="w-full">
+			<div class="w-full h-full">
 				<div
 					class="absolute top-0 left-0 w-full h-full flex justify-center"
 					in:blur={{
diff --git a/src/routes/+page.svelte b/src/routes/+page.svelte
index e1c9227..009a297 100644
--- a/src/routes/+page.svelte
+++ b/src/routes/+page.svelte
@@ -4,39 +4,58 @@
 	import { converters } from "$lib/converters";
 	import { files } from "$lib/store/index.svelte";
 
-	const convertAllFiles = async () => {
-		const promises = files.files?.map(async (file, i) => {
-			let conversionType = files.conversionTypes[i];
-			const converter = converters[0];
-			const convertedFile = await converter.convert(
-				{
-					name: file.name,
-					buffer: await file.arrayBuffer(),
-				},
-				conversionType,
-			);
-			files.downloadFns[i] = () => {
-				const url = URL.createObjectURL(
-					new Blob([convertedFile.buffer]),
-				);
-				const a = document.createElement("a");
-				a.href = url;
-				if (conversionType.startsWith("."))
-					conversionType = conversionType.slice(1);
-				a.download = `${file.name}.${conversionType}`;
-				a.target = "_self";
-				a.click();
-				URL.revokeObjectURL(url);
-			};
-		});
-		if (promises) await Promise.all(promises);
+	let ourFiles = $state<File[]>();
+
+	const runUpload = () => {
+		files.files = [
+			...files.files,
+			...(ourFiles || []).map((f) => ({
+				file: f,
+				to: converters[0].supportedFormats[0],
+				blobUrl: URL.createObjectURL(f),
+			})),
+		];
+
+		ourFiles = [];
+
+		if (files.files.length > 0 && !files.beenToConverterPage)
+			goto("/convert");
 	};
+
+	// const convertAllFiles = async () => {
+	// 	const promises = files.files?.map(async (file, i) => {
+	// 		let conversionType = files.conversionTypes[i];
+	// 		const converter = converters[0];
+	// 		const convertedFile = await converter.convert(
+	// 			{
+	// 				name: file.name,
+	// 				buffer: await file.arrayBuffer(),
+	// 			},
+	// 			conversionType,
+	// 		);
+	// 		files.downloadFns[i] = () => {
+	// 			const url = URL.createObjectURL(
+	// 				new Blob([convertedFile.buffer]),
+	// 			);
+	// 			const a = document.createElement("a");
+	// 			a.href = url;
+	// 			if (conversionType.startsWith("."))
+	// 				conversionType = conversionType.slice(1);
+	// 			a.download = `${file.name}.${conversionType}`;
+	// 			a.target = "_self";
+	// 			a.click();
+	// 			URL.revokeObjectURL(url);
+	// 		};
+	// 	});
+	// 	if (promises) await Promise.all(promises);
+	// };
 </script>
 
-<Uploader
-	bind:files={files.files}
-	onupload={() => files.files.length > 0 && goto("/convert")}
-/>
+<div
+	class="flex w-full h-full items-center justify-center pb-32 [@media(max-height:768px)]:block"
+>
+	<Uploader bind:files={ourFiles} onupload={runUpload} />
+</div>
 
 <style>
 	/* for this page specifically */
diff --git a/src/routes/convert/+page.svelte b/src/routes/convert/+page.svelte
index d57fbeb..f387130 100644
--- a/src/routes/convert/+page.svelte
+++ b/src/routes/convert/+page.svelte
@@ -1,4 +1,5 @@
 <script>
+	import ProgressiveBlur from "$lib/components/visual/effects/ProgressiveBlur.svelte";
 	import { converters } from "$lib/converters";
 	import { files } from "$lib/store/index.svelte";
 
@@ -11,28 +12,52 @@
 			No files uploaded. Head to the Upload tab to begin!
 		</p>
 	{/if}
-	{#each files.files as file, i}
+	{#each files.files.reverse() as file, i}
 		<div
-			class="flex items-center w-full border-2 border-solid border-foreground-muted-alt rounded-xl pl-4 pr-2 py-2"
+			class="flex relative items-center w-full border-2 border-solid border-foreground-muted-alt rounded-xl pl-4 pr-2 py-2"
 		>
-			<div class="flex items-center flex-grow">
-				{file.name}
+			<div class="flex items-center w-full z-50 relative">
+				<div
+					class="flex items-center flex-grow"
+					style="text-shadow: 0px 0px 6px white, 0px 0px 12px white"
+				>
+					{file.file.name}
+				</div>
+				<div class="flex items-center gap-2 flex-shrink-0">
+					<span>from</span>
+					<span
+						class="py-2 px-3 font-display bg-foreground text-background rounded-xl"
+						>.{file.file.name.split(".").slice(-1)}</span
+					>
+					<span>to</span>
+					<select
+						class="font-display border-2 border-solid border-foreground-muted-alt rounded-xl p-2 focus:!outline-none"
+						bind:value={files.conversionTypes[i]}
+					>
+						{#each converters[0].supportedFormats as conversionType}
+							<option value={conversionType}
+								>{conversionType}</option
+							>
+						{/each}
+					</select>
+				</div>
 			</div>
-			<div class="flex items-center gap-2 flex-shrink-0">
-				<span>from</span>
-				<span
-					class="py-2 px-3 font-display bg-foreground text-background rounded-xl"
-					>.{file.name.split(".").slice(-1)}</span
-				>
-				<span>to</span>
-				<select
-					class="font-display border-2 border-solid border-foreground-muted-alt rounded-xl p-2 focus:!outline-none"
-					bind:value={files.conversionTypes[i]}
-				>
-					{#each converters[0].supportedFormats as conversionType}
-						<option value={conversionType}>{conversionType}</option>
-					{/each}
-				</select>
+			<!-- god knows why, but setting opacity > 0.98 causes a z-ordering issue in firefox ??? -->
+			<div
+				class="absolute top-0 -z-50 left-0 w-full h-full rounded-[10px] overflow-hidden opacity-[0.98]"
+			>
+				<div
+					class="bg-cover bg-center w-full h-full"
+					style="background-image: url({file.blobUrl});"
+				></div>
+				<div class="absolute top-0 right-0 w-5/6 h-full">
+					<ProgressiveBlur
+						direction="right"
+						endIntensity={64}
+						iterations={6}
+						fadeTo="rgba(255, 255, 255, 0.8)"
+					/>
+				</div>
 			</div>
 		</div>
 	{/each}