136 lines
3.3 KiB
TypeScript
136 lines
3.3 KiB
TypeScript
import { EditorCore } from "@/core";
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import {
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getKeyframeAtTime,
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updateScalarKeyframeCurve,
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upsertPathKeyframe,
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} from "@/animation";
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import { Command, type CommandResult } from "@/commands/base-command";
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import type { KeyframeClipboardItem } from "@/clipboard";
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import type { SceneTracks, TimelineElement } from "@/timeline";
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import { updateElementInSceneTracks } from "@/timeline";
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import { resolveAnimationTarget } from "@/timeline/animation-targets";
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import { generateUUID } from "@/utils/id";
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function pasteKeyframesIntoElement({
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element,
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time,
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clipboardItems,
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}: {
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element: TimelineElement;
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time: number;
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clipboardItems: KeyframeClipboardItem[];
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}): TimelineElement {
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let nextElement = element;
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for (const item of clipboardItems) {
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const target = resolveAnimationTarget({
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element: nextElement,
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path: item.propertyPath,
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});
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if (!target) {
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continue;
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}
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const keyframeTime = Math.max(
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0,
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Math.min(time + item.timeOffset, nextElement.duration),
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);
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const nextAnimations = upsertPathKeyframe({
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animations: nextElement.animations,
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propertyPath: item.propertyPath,
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time: keyframeTime,
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value: item.value,
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interpolation: item.interpolation,
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keyframeId: generateUUID(),
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kind: target.kind,
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defaultInterpolation: target.defaultInterpolation,
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coerceValue: target.coerceValue,
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});
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const pastedKeyframe = getKeyframeAtTime({
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animations: nextAnimations,
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propertyPath: item.propertyPath,
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time: keyframeTime,
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});
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let patchedAnimations = nextAnimations;
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if (pastedKeyframe) {
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for (const curvePatch of item.curvePatches) {
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const nextPatchedAnimations = updateScalarKeyframeCurve({
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animations: patchedAnimations,
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propertyPath: item.propertyPath,
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componentKey: curvePatch.componentKey,
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keyframeId: pastedKeyframe.id,
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patch: curvePatch.patch,
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});
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patchedAnimations = nextPatchedAnimations ?? patchedAnimations;
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}
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}
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nextElement = {
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...nextElement,
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animations: patchedAnimations,
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};
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}
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return nextElement;
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}
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export class PasteKeyframesCommand extends Command {
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private savedState: SceneTracks | null = null;
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private readonly trackId: string;
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private readonly elementId: string;
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private readonly time: number;
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private readonly clipboardItems: KeyframeClipboardItem[];
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constructor({
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trackId,
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elementId,
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time,
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clipboardItems,
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}: {
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trackId: string;
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elementId: string;
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time: number;
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clipboardItems: KeyframeClipboardItem[];
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}) {
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super();
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this.trackId = trackId;
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this.elementId = elementId;
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this.time = time;
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this.clipboardItems = clipboardItems;
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}
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execute(): CommandResult | undefined {
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if (this.clipboardItems.length === 0) {
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return undefined;
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}
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const editor = EditorCore.getInstance();
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this.savedState = editor.scenes.getActiveScene().tracks;
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const updatedTracks = updateElementInSceneTracks({
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tracks: this.savedState,
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trackId: this.trackId,
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elementId: this.elementId,
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update: (element) =>
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pasteKeyframesIntoElement({
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element,
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time: this.time,
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clipboardItems: this.clipboardItems,
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}),
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});
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editor.timeline.updateTracks(updatedTracks);
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return undefined;
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}
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undo(): void {
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if (!this.savedState) {
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return;
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}
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const editor = EditorCore.getInstance();
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editor.timeline.updateTracks(this.savedState);
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}
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}
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