From d1d654ebac2d51e3841675faeb56480e440f622f Mon Sep 17 00:00:00 2001
From: Wolfgang Müller
Date: Tue, 5 Mar 2024 18:08:09 +0100
Subject: Initial commit

---
 frontend/src/lib/reader/PageView.svelte            | 67 ++++++++++++++++++++++
 frontend/src/lib/reader/Reader.svelte              | 39 +++++++++++++
 frontend/src/lib/reader/ReaderPage.svelte          | 24 ++++++++
 .../lib/reader/components/CloseReaderButton.svelte | 19 ++++++
 .../lib/reader/components/ReaderMenuButton.svelte  | 16 ++++++
 5 files changed, 165 insertions(+)
 create mode 100644 frontend/src/lib/reader/PageView.svelte
 create mode 100644 frontend/src/lib/reader/Reader.svelte
 create mode 100644 frontend/src/lib/reader/ReaderPage.svelte
 create mode 100644 frontend/src/lib/reader/components/CloseReaderButton.svelte
 create mode 100644 frontend/src/lib/reader/components/ReaderMenuButton.svelte

(limited to 'frontend/src/lib/reader')

diff --git a/frontend/src/lib/reader/PageView.svelte b/frontend/src/lib/reader/PageView.svelte
new file mode 100644
index 0000000..cc4d10e
--- /dev/null
+++ b/frontend/src/lib/reader/PageView.svelte
@@ -0,0 +1,67 @@
+<script lang="ts">
+	import { Direction, Layout, type PageFragment } from '$gql/graphql';
+	import { getReaderContext, partition, type Chunk } from '$lib/Reader';
+	import { binds } from '$lib/Shortcuts';
+	import ReaderPage from './ReaderPage.svelte';
+
+	const reader = getReaderContext();
+
+	export let direction: Direction;
+	export let layout: Layout;
+
+	let chunks: Chunk[] = [];
+	let lookup: number[] = [];
+
+	let main: PageFragment;
+	let secondary: PageFragment | undefined;
+
+	function gotoChunk(to: number) {
+		if (to < 0 || to >= chunks.length) return;
+
+		$reader.page = chunks[to].index;
+	}
+
+	const next = () => gotoChunk(lookup[$reader.page] + 1);
+	const prev = () => gotoChunk(lookup[$reader.page] - 1);
+
+	const clickLeft = () => (direction === Direction.LeftToRight ? prev() : next());
+	const clickRight = () => (direction === Direction.RightToLeft ? prev() : next());
+
+	function clickMain(event: MouseEvent & { currentTarget: EventTarget | null }) {
+		if (event.currentTarget instanceof Element) {
+			const rect = event.currentTarget.getBoundingClientRect();
+
+			if (event.clientX - rect.left < rect.width / 2) {
+				clickLeft();
+			} else {
+				clickRight();
+			}
+		}
+	}
+
+	$: [chunks, lookup] = partition($reader.pages, layout);
+	$: layout, ({ main, secondary } = chunks[lookup[$reader.page]]);
+</script>
+
+<svelte:document
+	use:binds={[
+		['ArrowLeft', clickLeft],
+		['ArrowRight', clickRight],
+		['ArrowUp', prev],
+		['ArrowDown', next],
+		['PageUp', prev],
+		['PageDown', next],
+		[' ', next],
+		['Backspace', prev]
+	]}
+/>
+
+{#if !secondary}
+	<ReaderPage page={main} on:click={clickMain} --justify="center" />
+{:else if direction === Direction.LeftToRight}
+	<ReaderPage page={main} on:click={prev} --justify="flex-end" />
+	<ReaderPage page={secondary} on:click={next} --justify="flex-start" />
+{:else}
+	<ReaderPage page={secondary} on:click={next} --justify="flex-end" />
+	<ReaderPage page={main} on:click={prev} --justify="flex-start" />
+{/if}
diff --git a/frontend/src/lib/reader/Reader.svelte b/frontend/src/lib/reader/Reader.svelte
new file mode 100644
index 0000000..0b1450a
--- /dev/null
+++ b/frontend/src/lib/reader/Reader.svelte
@@ -0,0 +1,39 @@
+<script lang="ts">
+	import { trapFocus } from '$lib/Actions';
+	import { getReaderContext } from '$lib/Reader';
+	import { fadeDefault, slideXDefault } from '$lib/Transitions';
+	import { fade, slide } from 'svelte/transition';
+	import CloseReaderButton from './components/CloseReaderButton.svelte';
+	import ReaderMenuButton from './components/ReaderMenuButton.svelte';
+
+	const reader = getReaderContext();
+</script>
+
+{#if $reader.visible}
+	<div
+		role="dialog"
+		class="fixed bottom-0 left-0 right-0 top-0 z-10 flex h-full w-full bg-black"
+		transition:fade={fadeDefault}
+		use:trapFocus
+	>
+		{#if $$slots.sidebar && $reader.sidebar}
+			<aside class="w-[36rem] shrink-0 bg-slate-800" transition:slide={slideXDefault}>
+				<div class="flex h-full min-w-[36rem] flex-col gap-4 overflow-auto p-4">
+					<slot name="sidebar" />
+				</div>
+			</aside>
+		{/if}
+		<main class="relative flex grow">
+			<div class="absolute flex w-full p-1 text-lg [&>*:last-child]:ml-auto">
+				{#if $$slots.sidebar}
+					<ReaderMenuButton />
+				{/if}
+				<CloseReaderButton />
+			</div>
+
+			<div class="flex grow">
+				<slot />
+			</div>
+		</main>
+	</div>
+{/if}
diff --git a/frontend/src/lib/reader/ReaderPage.svelte b/frontend/src/lib/reader/ReaderPage.svelte
new file mode 100644
index 0000000..fb3e780
--- /dev/null
+++ b/frontend/src/lib/reader/ReaderPage.svelte
@@ -0,0 +1,24 @@
+<script lang="ts">
+	import type { PageFragment } from '$gql/graphql';
+	import { src } from '$lib/Utils';
+
+	export let page: PageFragment;
+</script>
+
+<!-- svelte-ignore a11y-click-events-have-key-events -->
+<!-- svelte-ignore a11y-no-static-element-interactions -->
+<div class="flex grow" on:click>
+	<img
+		class="h-auto w-auto object-contain"
+		width={page.image.width}
+		height={page.image.height}
+		src={src(page.image, 'full')}
+		alt={page.path}
+	/>
+</div>
+
+<style>
+	div {
+		justify-content: var(--justify);
+	}
+</style>
diff --git a/frontend/src/lib/reader/components/CloseReaderButton.svelte b/frontend/src/lib/reader/components/CloseReaderButton.svelte
new file mode 100644
index 0000000..0c88323
--- /dev/null
+++ b/frontend/src/lib/reader/components/CloseReaderButton.svelte
@@ -0,0 +1,19 @@
+<script lang="ts">
+	import { getReaderContext } from '$lib/Reader';
+	import { accelerator } from '$lib/Shortcuts';
+
+	const reader = getReaderContext();
+</script>
+
+<button
+	type="button"
+	class="btn floating"
+	title="Close reader"
+	on:click={() => {
+		$reader.visible = false;
+		$reader.sidebar = false;
+	}}
+	use:accelerator={'Escape'}
+>
+	<span class="icon-lg icon-[material-symbols--close]" />
+</button>
diff --git a/frontend/src/lib/reader/components/ReaderMenuButton.svelte b/frontend/src/lib/reader/components/ReaderMenuButton.svelte
new file mode 100644
index 0000000..aa20206
--- /dev/null
+++ b/frontend/src/lib/reader/components/ReaderMenuButton.svelte
@@ -0,0 +1,16 @@
+<script lang="ts">
+	import { getReaderContext } from '$lib/Reader';
+	import { accelerator } from '$lib/Shortcuts';
+
+	const reader = getReaderContext();
+</script>
+
+<button
+	type="button"
+	class="btn floating invisible xl:visible"
+	title={`${$reader.sidebar ? 'Hide' : 'Show'} menu`}
+	on:click={() => ($reader.sidebar = !$reader.sidebar)}
+	use:accelerator={'z'}
+>
+	<span class="icon-lg icon-[material-symbols--dock-to-right]" />
+</button>
-- 
cgit v1.2.3-2-gb3c3