From 214c1d7e5194d1a720d9a827f8ee200af858be33 Mon Sep 17 00:00:00 2001
From: TheoryOfNekomata <allan.crisostomo@outlook.com>
Date: Sun, 19 Mar 2023 18:18:48 +0800
Subject: [PATCH] Update data binding

Handle data binding for keyframes.
---
 .../app/components/Button/index.tsx           |  16 +
 .../app/components/FileButton/index.tsx       |  23 ++
 tools/animation-workbench/app/root.tsx        |   2 +-
 .../animation-workbench/app/routes/index.tsx  | 289 +++++++++++++++---
 4 files changed, 282 insertions(+), 48 deletions(-)
 create mode 100644 tools/animation-workbench/app/components/Button/index.tsx
 create mode 100644 tools/animation-workbench/app/components/FileButton/index.tsx

diff --git a/tools/animation-workbench/app/components/Button/index.tsx b/tools/animation-workbench/app/components/Button/index.tsx
new file mode 100644
index 0000000..ff51de8
--- /dev/null
+++ b/tools/animation-workbench/app/components/Button/index.tsx
@@ -0,0 +1,16 @@
+import {forwardRef, HTMLProps, ReactNode} from 'react';
+
+export interface ButtonProps extends Omit<HTMLProps<HTMLButtonElement>, 'type'> {
+  type?: 'button' | 'reset' | 'submit';
+}
+
+export const Button = forwardRef<HTMLButtonElement, ButtonProps>(({
+  className,
+  ...etcProps
+}, ref) => (
+  <button
+    {...etcProps}
+    ref={ref}
+    className={`h-12 px-4 border-2 rounded ${className}`}
+  />
+))
diff --git a/tools/animation-workbench/app/components/FileButton/index.tsx b/tools/animation-workbench/app/components/FileButton/index.tsx
new file mode 100644
index 0000000..b974bb8
--- /dev/null
+++ b/tools/animation-workbench/app/components/FileButton/index.tsx
@@ -0,0 +1,23 @@
+import {forwardRef, HTMLProps, ReactNode} from 'react';
+
+export interface FileButtonProps extends Omit<HTMLProps<HTMLInputElement>, 'type'> {
+  children: ReactNode;
+}
+
+export const FileButton = forwardRef<HTMLInputElement, FileButtonProps>(({
+  className,
+  children,
+  ...etcProps
+}, ref) => (
+  <label>
+    <input
+      {...etcProps}
+      ref={ref}
+      type="file"
+      className="sr-only"
+    />
+    <span className={`h-12 px-4 border-2 rounded inline-flex justify-center items-center cursor-pointer ${className}`}>
+      {children}
+    </span>
+  </label>
+))
diff --git a/tools/animation-workbench/app/root.tsx b/tools/animation-workbench/app/root.tsx
index 80db851..3fd73f1 100644
--- a/tools/animation-workbench/app/root.tsx
+++ b/tools/animation-workbench/app/root.tsx
@@ -7,7 +7,7 @@ import {
   Scripts,
   ScrollRestoration,
 } from "@remix-run/react";
-import stylesheet from "./tailwind.css";
+import stylesheet from '~/tailwind.css';
 
 export const links: LinksFunction = () => [
 	{ rel: "stylesheet", href: stylesheet },
diff --git a/tools/animation-workbench/app/routes/index.tsx b/tools/animation-workbench/app/routes/index.tsx
index 71ed1ff..655f9fb 100644
--- a/tools/animation-workbench/app/routes/index.tsx
+++ b/tools/animation-workbench/app/routes/index.tsx
@@ -8,21 +8,35 @@ import {
 	useState,
 } from 'react';
 import { getFormValues, setFormValues } from '@theoryofnekomata/formxtra';
+import { Button } from '~/components/Button';
+import {FileButton} from '~/components/FileButton';
 
 type SvgGroup = {
 	id: string;
 	name: string;
 }
 
+type KeyframeAttribute = {
+	group: SvgGroup;
+	translateX: number;
+	translateY: number;
+	rotate: number;
+}
+
+type Keyframe = {
+	time: number;
+	attributes: KeyframeAttribute[];
+}
+
 const useAnimationForm = () => {
 	const [loadedFileName, setLoadedFileName] = useState<string>();
 	const [loadedFileContents, setLoadedFileContents] = useState<string>();
-
 	const [svgAnimations, setSvgAnimations] = useState<string[]>();
 	const [svgGroups, setSvgGroups] = useState<SvgGroup[]>();
 	const [isNewAnimationId, setIsNewAnimationId] = useState<boolean>();
 	const [currentAnimationId, setCurrentAnimationId] = useState<string>();
 	const [enabledGroupIds, setEnabledGroupIds] = useState<string[]>();
+	const [savedSvgKeyframes, setSavedSvgKeyframes] = useState<Keyframe[]>();
 
 	const svgAnimationIdsListId = useId();
 
@@ -76,9 +90,9 @@ const useAnimationForm = () => {
 			break;
 		default:
 			// we select from the datalist
+			const target = e.currentTarget;
 			setIsNewAnimationId(false);
 			setCurrentAnimationId(e.currentTarget.value);
-			const target = e.currentTarget;
 			setTimeout(() => {
 				target.blur();
 			});
@@ -102,10 +116,12 @@ const useAnimationForm = () => {
 			return
 		}
 
+		const svgPreviewRoot = svgPreviewRef.current.children[0];
+
 		setSvgAnimations(['default']);
 		setSvgGroups(
 			Array
-				.from(svgPreviewRef.current.children[0].children)
+				.from(svgPreviewRoot.children)
 				.map((g) => ({
 					id: g.id,
 					name: g.id,
@@ -113,6 +129,7 @@ const useAnimationForm = () => {
 		);
 		setCurrentAnimationId('default');
 		setEnabledGroupIds([]); // TODO - compute enabled groupIds based on current animation id
+		setSavedSvgKeyframes([]); // TODO - load keyframes from file
 	}, [loadedFileContents, svgPreviewRef.current]);
 
 	const focusAnimationIdInput: FocusEventHandler<HTMLInputElement> = (e) => {
@@ -163,7 +180,7 @@ const useAnimationForm = () => {
 		const currentRotate = rotate[changedIndex];
 		const currentTranslateX = e.currentTarget.value;
 		const currentTranslateY = translateY[changedIndex];
-		targetGroup.setAttribute('transform', `rotate(${currentRotate} ${rotationCenter.cx} ${rotationCenter.cy}) translate(${currentTranslateX} ${currentTranslateY})`);
+		targetGroup.setAttribute('transform', `translate(${currentTranslateX} ${currentTranslateY}) rotate(${currentRotate} ${rotationCenter.cx} ${rotationCenter.cy})`);
 	}
 
 	const translateYGroup = (group: SvgGroup): ChangeEventHandler<HTMLInputElement> => (e) => {
@@ -196,7 +213,7 @@ const useAnimationForm = () => {
 		const currentRotate = rotate[changedIndex];
 		const currentTranslateX = translateX[changedIndex];
 		const currentTranslateY = e.currentTarget.value;
-		targetGroup.setAttribute('transform', `rotate(${currentRotate} ${rotationCenter.cx} ${rotationCenter.cy}) translate(${currentTranslateX} ${currentTranslateY})`);
+		targetGroup.setAttribute('transform', `translate(${currentTranslateX} ${currentTranslateY}) rotate(${currentRotate} ${rotationCenter.cx} ${rotationCenter.cy})`);
 	}
 
 	const rotateGroup = (group: SvgGroup): ChangeEventHandler<HTMLInputElement> => (e) => {
@@ -222,6 +239,41 @@ const useAnimationForm = () => {
 		};
 
 		const values = getFormValues(e.currentTarget.form!, { forceNumberValues: true });
+		setFormValues(e.currentTarget.form!, { rotateNumber: values.rotate });
+		const changed = Array.isArray(values.changed) ? values.changed : [values.changed];
+		const changedIndex = changed.indexOf(group.id);
+		const translateX = Array.isArray(values.translateX) ? values.translateX : [values.translateX];
+		const translateY = Array.isArray(values.translateY) ? values.translateY : [values.translateY];
+		const currentRotate = e.currentTarget.value;
+		const currentTranslateX = translateX[changedIndex];
+		const currentTranslateY = translateY[changedIndex];
+		targetGroup.setAttribute('transform', `translate(${currentTranslateX} ${currentTranslateY}) rotate(${currentRotate} ${rotationCenter.cx} ${rotationCenter.cy})`);
+	}
+
+	const rotateGroupThroughNumber = (group: SvgGroup): ChangeEventHandler<HTMLInputElement> => (e) => {
+		const { current: svgPreviewWrapper } = svgPreviewRef;
+		if (!svgPreviewWrapper) {
+			return;
+		}
+
+		const svgPreviewRoot = svgPreviewWrapper.children[0] as SVGSVGElement | null;
+		if (!svgPreviewRoot) {
+			return;
+		}
+
+		const targetGroup = Array.from(svgPreviewRoot.children).find(g => g.id === group.id) as SVGGraphicsElement;
+		if (!targetGroup) {
+			return;
+		}
+
+		const rotationCenterReference = Array.from(targetGroup.children).find(e => e.tagName === 'circle') as SVGCircleElement | undefined
+		const rotationCenter = {
+			cx: rotationCenterReference?.getAttribute?.('cx') ?? 0,
+			cy: rotationCenterReference?.getAttribute?.('cy') ?? 0,
+		};
+
+		const values = getFormValues(e.currentTarget.form!, { forceNumberValues: true });
+		setFormValues(e.currentTarget.form!, { rotate: values.rotateNumber });
 		const changed = Array.isArray(values.changed) ? values.changed : [values.changed];
 		const changedIndex = changed.indexOf(group.id);
 		const translateX = Array.isArray(values.translateX) ? values.translateX : [values.translateX];
@@ -229,14 +281,78 @@ const useAnimationForm = () => {
 		const currentRotate = e.currentTarget.value;
 		const currentTranslateX = translateX[changedIndex];
 		const currentTranslateY = translateY[changedIndex];
-		targetGroup.setAttribute('transform', `rotate(${currentRotate} ${rotationCenter.cx} ${rotationCenter.cy}) translate(${currentTranslateX} ${currentTranslateY})`);
+		targetGroup.setAttribute('transform', `translate(${currentTranslateX} ${currentTranslateY}) rotate(${currentRotate} ${rotationCenter.cx} ${rotationCenter.cy})`);
 	}
 
 	const handleFormSubmit: FormEventHandler<HTMLFormElement> = (e) => {
 		e.preventDefault();
 		const { submitter } = e.nativeEvent as unknown as { submitter: HTMLButtonElement };
-		const values = getFormValues(e.currentTarget, { submitter });
-		console.log(values);
+		const values = getFormValues(e.currentTarget, { submitter, forceNumberValues: true });
+		const changed = Array.isArray(values.changed) ? values.changed : [values.changed];
+		const translateX = Array.isArray(values.translateX) ? values.translateX : [values.translateX];
+		const translateY = Array.isArray(values.translateY) ? values.translateY : [values.translateY];
+		const rotate = Array.isArray(values.rotate) ? values.rotate : [values.rotate];
+		switch (values.action) {
+		case 'updateTimeKeyframes':
+			if ('changed' in values) {
+				// TODO handle keyframes on different animations
+				// TODO update SVG preview when updating current time
+				setSavedSvgKeyframes((oldSavedSvgKeyframes = []) => {
+					const newKeyframe = {
+						time: values.time as number,
+						attributes: changed.map((attribute, i) => ({
+							group: {
+								id: attribute,
+								name: attribute,
+							},
+							translateX: translateX[i],
+							translateY: translateY[i],
+							rotate: rotate[i],
+						})),
+					};
+					if (oldSavedSvgKeyframes.some((k) => k.time === values.time as number)) {
+						return oldSavedSvgKeyframes.map((k) => k.time === values.time ? newKeyframe : k);
+					}
+					return [
+						...oldSavedSvgKeyframes,
+						newKeyframe,
+					]
+				})
+				return;
+			}
+			setSavedSvgKeyframes((oldSavedSvgKeyframes = []) => oldSavedSvgKeyframes.filter(k => k.time !== values.time as number));
+			return;
+		default:
+			break;
+		}
+	}
+
+	const updateTime: ChangeEventHandler<HTMLInputElement> = (e) => {
+		const value = e.currentTarget.valueAsNumber;
+		const form = e.currentTarget.form as HTMLFormElement
+		const keyframe = savedSvgKeyframes?.find((k) => k.time === value);
+		if (!keyframe) {
+			setEnabledGroupIds([]);
+			setFormValues(form, {
+				changed: svgGroups?.map(() => false),
+				translateX: svgGroups?.map(() => 0),
+				translateY: svgGroups?.map(() => 0),
+				rotate: svgGroups?.map(() => 0),
+				rotateNumber: svgGroups?.map(() => 0),
+			})
+			return;
+		}
+		const changed = keyframe.attributes.map((a) => a.group.id);
+		setEnabledGroupIds(changed);
+		setTimeout(() => {
+			setFormValues(form, {
+				changed: changed,
+				translateX: keyframe.attributes.map((a) => a.translateX),
+				translateY: keyframe.attributes.map((a) => a.translateY),
+				rotate: keyframe.attributes.map((a) => a.rotate),
+				rotateNumber: keyframe.attributes.map((a) => a.rotate),
+			});
+		});
 	}
 
 	return {
@@ -255,9 +371,12 @@ const useAnimationForm = () => {
 		addKeyframeAttribute,
 		enabledGroupIds,
 		rotateGroup,
+		rotateGroupThroughNumber,
 		translateXGroup,
 		translateYGroup,
 		handleFormSubmit,
+		savedSvgKeyframes,
+		updateTime,
 	}
 }
 
@@ -278,36 +397,61 @@ const IndexPage = () => {
 		addKeyframeAttribute,
 		enabledGroupIds,
 		rotateGroup,
+		rotateGroupThroughNumber,
 		translateXGroup,
 		translateYGroup,
 		handleFormSubmit,
+		savedSvgKeyframes,
+		updateTime,
 	} = useAnimationForm();
 
 	return (
 		<form className="lg:fixed lg:w-full lg:h-full flex flex-col" onSubmit={handleFormSubmit}>
-			<div className="flex gap-4">
-				<label>
-					<input
-						type="file"
-						name="svgFile"
-						accept="*.svg"
-						onChange={loadSvgFile}
-						className="sr-only"
-					/>
-					<span className="whitespace-nowrap">
-						Load SVG File
-					</span>
-				</label>
+			<datalist id="translationTickMarks">
+				<option value="0">0</option>
+			</datalist>
+			<datalist id="rotationTickMarks">
+				<option value="-360">-360</option>
+				<option value="-270">-270</option>
+				<option value="-180">-180</option>
+				<option value="-90">-90</option>
+				<option value="0">0</option>
+				<option value="90">90</option>
+				<option value="180">180</option>
+				<option value="270">270</option>
+				<option value="360">360</option>
+			</datalist>
+			<datalist id="timeTickMarks">
+				{savedSvgKeyframes?.map((k) => (
+					<option
+						key={k.time}
+						value={k.time}
+					>
+						{k.time}
+					</option>
+				))}
+			</datalist>
+			<div className="flex gap-4 px-4 py-2 items-center">
+				<FileButton
+					name="svgFile"
+					accept="*.svg"
+					onChange={loadSvgFile}
+					className="whitespace-nowrap"
+				>
+					Load SVG File
+				</FileButton>
 				{
 					loadedFileContents
 					&& (
 						<>
-							<button
+							<Button
 								type="submit"
 								className="whitespace-nowrap"
+								name="action"
+								value="saveSvgFile"
 							>
 								Save SVG File
-							</button>
+							</Button>
 							<div className="text-center w-full">
 								{loadedFileName}
 							</div>
@@ -334,7 +478,7 @@ const IndexPage = () => {
 								<input
 									list={svgAnimationIdsListId}
 									name="animationId"
-									className="w-full block"
+									className="w-full block h-full px-4 h-12"
 									defaultValue={svgAnimations?.[0] ?? ''}
 									onInput={handleAnimationIdInput}
 									onFocus={focusAnimationIdInput}
@@ -345,29 +489,29 @@ const IndexPage = () => {
 							{
 								isNewAnimationId && (
 									<>
-										<button
+										<Button
 											type="submit"
 											name="action"
 											value="renameCurrentAnimationId"
 											className="whitespace-nowrap"
 										>
 											Rename
-										</button>
-										<button
+										</Button>
+										<Button
 											type="submit"
 											name="action"
 											value="createNewAnimation"
 											className="whitespace-nowrap"
 										>
 											Create New
-										</button>
-										<button
+										</Button>
+										<Button
 											type="reset"
 											className="whitespace-nowrap"
 											onClick={cancelAnimationIdChange}
 										>
 											Cancel
-										</button>
+										</Button>
 									</>
 								)
 							}
@@ -375,8 +519,24 @@ const IndexPage = () => {
 						<div
 							className="flex gap-4 h-full"
 						>
-							<div className="w-full" ref={svgPreviewRef} dangerouslySetInnerHTML={{ __html: loadedFileContents ?? '' }} />
-							<div className="w-full">
+							<div
+								className="overflow-auto bg-[black] relative w-full"
+							>
+								<div
+									className="absolute p-4"
+								>
+									<div
+										className="bg-[white] p-4"
+										ref={svgPreviewRef}
+										dangerouslySetInnerHTML={{ __html: loadedFileContents ?? '' }}
+									/>
+								</div>
+							</div>
+							<div
+								style={{
+									width: 560
+								}}
+							>
 								{
 									Array.isArray(svgGroups) && (
 										<>
@@ -390,8 +550,10 @@ const IndexPage = () => {
 															{group.name}
 														</legend>
 														<div className="flex">
-															<div className="w-full">
-																<label>
+															<div className="flex-auto">
+																<label
+																	className="whitespace-nowrap"
+																>
 																	<input type="checkbox" name="changed" value={group.id} onChange={addKeyframeAttribute} />
 																	{' '}
 																	<span>
@@ -404,14 +566,15 @@ const IndexPage = () => {
 															>
 																<span className="sr-only">Translate X</span>
 																<input
-																	className="w-full block"
-																	type="range"
+																	className="w-full block text-right"
+																	type="number"
 																	name="translateX"
 																	min="-360" max="360"
 																	defaultValue="0"
 																	step="any"
 																	disabled={!enabledGroupIds?.includes(group.name)}
 																	onChange={translateXGroup(group)}
+																	list="translationTickMarks"
 																/>
 															</label>
 															<label
@@ -419,18 +582,19 @@ const IndexPage = () => {
 															>
 																<span className="sr-only">Translate Y</span>
 																<input
-																	className="w-full block"
-																	type="range"
+																	className="w-full block text-right"
+																	type="number"
 																	name="translateY"
 																	min="-360" max="360"
 																	defaultValue="0"
 																	step="any"
 																	disabled={!enabledGroupIds?.includes(group.name)}
 																	onChange={translateYGroup(group)}
+																	list="translationTickMarks"
 																/>
 															</label>
 															<label
-																className="w-16 block"
+																className="w-40 block"
 															>
 																<span className="sr-only">Rotate</span>
 																<input
@@ -440,9 +604,26 @@ const IndexPage = () => {
 																	min="-360"
 																	max="360"
 																	defaultValue="0"
-																	step="any"
+																	step="5"
 																	disabled={!enabledGroupIds?.includes(group.name)}
 																	onChange={rotateGroup(group)}
+																	list="rotationTickMarks"
+																/>
+															</label>
+															<label
+																className="w-12 block"
+															>
+																<span className="sr-only">Rotate</span>
+																<input
+																	className="w-full block text-right"
+																	type="number"
+																	name="rotateNumber"
+																	min="-360"
+																	max="360"
+																	defaultValue="0"
+																	step="5"
+																	disabled={!enabledGroupIds?.includes(group.name)}
+																	onChange={rotateGroupThroughNumber(group)}
 																/>
 															</label>
 														</div>
@@ -454,17 +635,31 @@ const IndexPage = () => {
 								}
 							</div>
 						</div>
-						<div className="flex gap-4">
-							<input type="number" name="length" min="1" defaultValue="10" step="1" />
-							<input className="w-full" type="range" name="time" min="0" max="10" defaultValue="0" step="1" />
-							<button
+						<div className="flex gap-4 items-center px-4 py-2">
+							<div
+								className="w-16"
+							>
+								<input type="number" name="length" min="1" defaultValue="10" step="1" className="block w-full" />
+							</div>
+							<input
+								className="w-full"
+								list="timeTickMarks"
+								type="range"
+								name="time"
+								min="0"
+								max="10"
+								defaultValue="0"
+								step="1"
+								onChange={updateTime}
+							/>
+							<Button
 								type="submit"
 								name="action"
-								value="addKeyframe"
+								value="updateTimeKeyframes"
 								className="whitespace-nowrap"
 							>
-								Add Keyframe
-							</button>
+								Update Current Time
+							</Button>
 						</div>
 					</div>
 				)