diff options
| author | Maze Winther <mazewinther@gmail.com> | 2026-03-27 00:55:15 +0100 |
|---|---|---|
| committer | Maze Winther <mazewinther@gmail.com> | 2026-03-29 15:56:48 +0200 |
| commit | 4d127a038bf768eded68aae3cfa5c1b12241bdac (patch) | |
| tree | 16bbb801caf6770546cff4fdb37b6408ec9ead98 /apps/web/src/components/editor/panels/preview/text-edit-overlay.tsx | |
| parent | 82817cb50cb0487350573d6129130aec705f924b (diff) | |
| download | opencut-4d127a038bf768eded68aae3cfa5c1b12241bdac.tar.gz | |
chore: normalize line endings
Diffstat (limited to 'apps/web/src/components/editor/panels/preview/text-edit-overlay.tsx')
| -rw-r--r-- | apps/web/src/components/editor/panels/preview/text-edit-overlay.tsx | 424 |
1 files changed, 212 insertions, 212 deletions
diff --git a/apps/web/src/components/editor/panels/preview/text-edit-overlay.tsx b/apps/web/src/components/editor/panels/preview/text-edit-overlay.tsx index d3c61a24..aff77f0f 100644 --- a/apps/web/src/components/editor/panels/preview/text-edit-overlay.tsx +++ b/apps/web/src/components/editor/panels/preview/text-edit-overlay.tsx @@ -1,212 +1,212 @@ -"use client"; - -import { useCallback, useEffect, useRef } from "react"; -import { usePreviewViewport } from "@/components/editor/panels/preview/preview-viewport"; -import { useEditor } from "@/hooks/use-editor"; -import type { TextElement } from "@/lib/timeline"; -import { - FONT_SIZE_SCALE_REFERENCE, -} from "@/constants/text-constants"; -import { DEFAULTS } from "@/lib/timeline/defaults"; -import { - getMetricAscent, - getMetricDescent, - setCanvasLetterSpacing, -} from "@/lib/text/layout"; - -let cachedCanvas: HTMLCanvasElement | null = null; - -function getMeasurementContext(): CanvasRenderingContext2D | null { - if (!cachedCanvas) cachedCanvas = document.createElement("canvas"); - return cachedCanvas.getContext("2d"); -} - -/** - * Uses fontBoundingBox metrics (which CSS uses for line box layout) rather than - * actualBoundingBox to model where the browser places the baseline within the - * line box, then measures actual glyph bounds to find the visual center. - */ -function measureCSSVisualCenterOffset({ - lines, - fontString, - letterSpacingPx, - lineHeightPx, - displayFontSize, -}: { - lines: string[]; - fontString: string; - letterSpacingPx: number; - lineHeightPx: number; - displayFontSize: number; -}): number { - const ctx = getMeasurementContext(); - if (!ctx) return 0; - - ctx.font = fontString; - ctx.textBaseline = "alphabetic"; - setCanvasLetterSpacing({ ctx, letterSpacingPx }); - - const probe = ctx.measureText("M"); - const fontAscent = probe.fontBoundingBoxAscent ?? displayFontSize * 0.8; - const fontDescent = probe.fontBoundingBoxDescent ?? displayFontSize * 0.2; - const halfLeading = (lineHeightPx - fontAscent - fontDescent) / 2; - - let visualTop = Number.POSITIVE_INFINITY; - let visualBottom = Number.NEGATIVE_INFINITY; - - for (let i = 0; i < lines.length; i++) { - const metrics = ctx.measureText(lines[i] || " "); - const baseline = i * lineHeightPx + halfLeading + fontAscent; - visualTop = Math.min( - visualTop, - baseline - getMetricAscent({ metrics, fallbackFontSize: displayFontSize }), - ); - visualBottom = Math.max( - visualBottom, - baseline + getMetricDescent({ metrics, fallbackFontSize: displayFontSize }), - ); - } - - const cssBlockHeight = lines.length * lineHeightPx; - return (visualTop + visualBottom) / 2 - cssBlockHeight / 2; -} - -export function TextEditOverlay({ - trackId, - elementId, - element, - onCommit, -}: { - trackId: string; - elementId: string; - element: TextElement; - onCommit: () => void; -}) { - const editor = useEditor(); - const viewport = usePreviewViewport(); - const divRef = useRef<HTMLDivElement>(null); - - useEffect(() => { - const div = divRef.current; - if (!div) return; - div.focus(); - const range = document.createRange(); - range.selectNodeContents(div); - const selection = window.getSelection(); - selection?.removeAllRanges(); - selection?.addRange(range); - }, []); - - const handleInput = useCallback(() => { - const div = divRef.current; - if (!div) return; - const text = div.innerText; - editor.timeline.previewElements({ - updates: [{ trackId, elementId, updates: { content: text } }], - }); - }, [editor.timeline, trackId, elementId]); - - const handleKeyDown = useCallback( - ({ event }: { event: React.KeyboardEvent }) => { - const { key } = event; - if (key === "Escape") { - event.preventDefault(); - onCommit(); - return; - } - }, - [onCommit], - ); - - const canvasSize = editor.project.getActive().settings.canvasSize; - - if (!canvasSize) return null; - - const { x: posX, y: posY } = viewport.positionToOverlay({ - positionX: element.transform.position.x, - positionY: element.transform.position.y, - }); - - const { x: displayScaleX } = viewport.getDisplayScale(); - - const displayFontSize = - element.fontSize * - (canvasSize.height / FONT_SIZE_SCALE_REFERENCE) * - displayScaleX; - - const lineHeight = element.lineHeight ?? DEFAULTS.text.lineHeight; - const fontWeight = element.fontWeight === "bold" ? "bold" : "normal"; - const fontStyle = element.fontStyle === "italic" ? "italic" : "normal"; - const displayLetterSpacing = (element.letterSpacing ?? 0) * displayScaleX; - const lineHeightPx = displayFontSize * lineHeight; - const lines = (element.content || "").split("\n"); - const fontString = `${fontStyle} ${fontWeight} ${displayFontSize}px "${element.fontFamily}", sans-serif`; - - const cssVisualCenterOffset = measureCSSVisualCenterOffset({ - lines, - fontString, - letterSpacingPx: displayLetterSpacing, - lineHeightPx, - displayFontSize, - }); - - const bg = element.background; - const shouldShowBackground = - bg.enabled && bg.color && bg.color !== "transparent"; - const fontSizeRatio = element.fontSize / DEFAULTS.text.element.fontSize; - const displayPaddingX = shouldShowBackground - ? (bg.paddingX ?? DEFAULTS.text.background.paddingX) * - fontSizeRatio * - displayScaleX - : 0; - const displayPaddingY = shouldShowBackground - ? (bg.paddingY ?? DEFAULTS.text.background.paddingY) * - fontSizeRatio * - displayScaleX - : 0; - - return ( - <div - className="absolute" - style={{ - left: posX, - top: posY - cssVisualCenterOffset, - transform: `translate(-50%, -50%) scale(${element.transform.scaleX}, ${element.transform.scaleY}) rotate(${element.transform.rotate}deg)`, - transformOrigin: "center center", - }} - > - {/* biome-ignore lint/a11y/useSemanticElements: contenteditable required for multiline, IME, paste */} - <div - ref={divRef} - contentEditable - suppressContentEditableWarning - tabIndex={0} - role="textbox" - aria-label="Edit text" - className="cursor-text select-text outline-none whitespace-pre" - style={{ - fontSize: displayFontSize, - fontFamily: element.fontFamily, - fontWeight, - fontStyle, - textAlign: element.textAlign, - letterSpacing: `${displayLetterSpacing}px`, - lineHeight, - color: element.color, - backgroundColor: shouldShowBackground ? bg.color : "transparent", - minHeight: lineHeightPx, - textDecoration: element.textDecoration ?? "none", - padding: shouldShowBackground - ? `${displayPaddingY}px ${displayPaddingX}px` - : 0, - minWidth: 1, - }} - onInput={handleInput} - onBlur={onCommit} - onKeyDown={(event) => handleKeyDown({ event })} - > - {element.content || ""} - </div> - </div> - ); -} +"use client";
+
+import { useCallback, useEffect, useRef } from "react";
+import { usePreviewViewport } from "@/components/editor/panels/preview/preview-viewport";
+import { useEditor } from "@/hooks/use-editor";
+import type { TextElement } from "@/lib/timeline";
+import {
+ FONT_SIZE_SCALE_REFERENCE,
+} from "@/constants/text-constants";
+import { DEFAULTS } from "@/lib/timeline/defaults";
+import {
+ getMetricAscent,
+ getMetricDescent,
+ setCanvasLetterSpacing,
+} from "@/lib/text/layout";
+
+let cachedCanvas: HTMLCanvasElement | null = null;
+
+function getMeasurementContext(): CanvasRenderingContext2D | null {
+ if (!cachedCanvas) cachedCanvas = document.createElement("canvas");
+ return cachedCanvas.getContext("2d");
+}
+
+/**
+ * Uses fontBoundingBox metrics (which CSS uses for line box layout) rather than
+ * actualBoundingBox to model where the browser places the baseline within the
+ * line box, then measures actual glyph bounds to find the visual center.
+ */
+function measureCSSVisualCenterOffset({
+ lines,
+ fontString,
+ letterSpacingPx,
+ lineHeightPx,
+ displayFontSize,
+}: {
+ lines: string[];
+ fontString: string;
+ letterSpacingPx: number;
+ lineHeightPx: number;
+ displayFontSize: number;
+}): number {
+ const ctx = getMeasurementContext();
+ if (!ctx) return 0;
+
+ ctx.font = fontString;
+ ctx.textBaseline = "alphabetic";
+ setCanvasLetterSpacing({ ctx, letterSpacingPx });
+
+ const probe = ctx.measureText("M");
+ const fontAscent = probe.fontBoundingBoxAscent ?? displayFontSize * 0.8;
+ const fontDescent = probe.fontBoundingBoxDescent ?? displayFontSize * 0.2;
+ const halfLeading = (lineHeightPx - fontAscent - fontDescent) / 2;
+
+ let visualTop = Number.POSITIVE_INFINITY;
+ let visualBottom = Number.NEGATIVE_INFINITY;
+
+ for (let i = 0; i < lines.length; i++) {
+ const metrics = ctx.measureText(lines[i] || " ");
+ const baseline = i * lineHeightPx + halfLeading + fontAscent;
+ visualTop = Math.min(
+ visualTop,
+ baseline - getMetricAscent({ metrics, fallbackFontSize: displayFontSize }),
+ );
+ visualBottom = Math.max(
+ visualBottom,
+ baseline + getMetricDescent({ metrics, fallbackFontSize: displayFontSize }),
+ );
+ }
+
+ const cssBlockHeight = lines.length * lineHeightPx;
+ return (visualTop + visualBottom) / 2 - cssBlockHeight / 2;
+}
+
+export function TextEditOverlay({
+ trackId,
+ elementId,
+ element,
+ onCommit,
+}: {
+ trackId: string;
+ elementId: string;
+ element: TextElement;
+ onCommit: () => void;
+}) {
+ const editor = useEditor();
+ const viewport = usePreviewViewport();
+ const divRef = useRef<HTMLDivElement>(null);
+
+ useEffect(() => {
+ const div = divRef.current;
+ if (!div) return;
+ div.focus();
+ const range = document.createRange();
+ range.selectNodeContents(div);
+ const selection = window.getSelection();
+ selection?.removeAllRanges();
+ selection?.addRange(range);
+ }, []);
+
+ const handleInput = useCallback(() => {
+ const div = divRef.current;
+ if (!div) return;
+ const text = div.innerText;
+ editor.timeline.previewElements({
+ updates: [{ trackId, elementId, updates: { content: text } }],
+ });
+ }, [editor.timeline, trackId, elementId]);
+
+ const handleKeyDown = useCallback(
+ ({ event }: { event: React.KeyboardEvent }) => {
+ const { key } = event;
+ if (key === "Escape") {
+ event.preventDefault();
+ onCommit();
+ return;
+ }
+ },
+ [onCommit],
+ );
+
+ const canvasSize = editor.project.getActive().settings.canvasSize;
+
+ if (!canvasSize) return null;
+
+ const { x: posX, y: posY } = viewport.positionToOverlay({
+ positionX: element.transform.position.x,
+ positionY: element.transform.position.y,
+ });
+
+ const { x: displayScaleX } = viewport.getDisplayScale();
+
+ const displayFontSize =
+ element.fontSize *
+ (canvasSize.height / FONT_SIZE_SCALE_REFERENCE) *
+ displayScaleX;
+
+ const lineHeight = element.lineHeight ?? DEFAULTS.text.lineHeight;
+ const fontWeight = element.fontWeight === "bold" ? "bold" : "normal";
+ const fontStyle = element.fontStyle === "italic" ? "italic" : "normal";
+ const displayLetterSpacing = (element.letterSpacing ?? 0) * displayScaleX;
+ const lineHeightPx = displayFontSize * lineHeight;
+ const lines = (element.content || "").split("\n");
+ const fontString = `${fontStyle} ${fontWeight} ${displayFontSize}px "${element.fontFamily}", sans-serif`;
+
+ const cssVisualCenterOffset = measureCSSVisualCenterOffset({
+ lines,
+ fontString,
+ letterSpacingPx: displayLetterSpacing,
+ lineHeightPx,
+ displayFontSize,
+ });
+
+ const bg = element.background;
+ const shouldShowBackground =
+ bg.enabled && bg.color && bg.color !== "transparent";
+ const fontSizeRatio = element.fontSize / DEFAULTS.text.element.fontSize;
+ const displayPaddingX = shouldShowBackground
+ ? (bg.paddingX ?? DEFAULTS.text.background.paddingX) *
+ fontSizeRatio *
+ displayScaleX
+ : 0;
+ const displayPaddingY = shouldShowBackground
+ ? (bg.paddingY ?? DEFAULTS.text.background.paddingY) *
+ fontSizeRatio *
+ displayScaleX
+ : 0;
+
+ return (
+ <div
+ className="absolute"
+ style={{
+ left: posX,
+ top: posY - cssVisualCenterOffset,
+ transform: `translate(-50%, -50%) scale(${element.transform.scaleX}, ${element.transform.scaleY}) rotate(${element.transform.rotate}deg)`,
+ transformOrigin: "center center",
+ }}
+ >
+ {/* biome-ignore lint/a11y/useSemanticElements: contenteditable required for multiline, IME, paste */}
+ <div
+ ref={divRef}
+ contentEditable
+ suppressContentEditableWarning
+ tabIndex={0}
+ role="textbox"
+ aria-label="Edit text"
+ className="cursor-text select-text outline-none whitespace-pre"
+ style={{
+ fontSize: displayFontSize,
+ fontFamily: element.fontFamily,
+ fontWeight,
+ fontStyle,
+ textAlign: element.textAlign,
+ letterSpacing: `${displayLetterSpacing}px`,
+ lineHeight,
+ color: element.color,
+ backgroundColor: shouldShowBackground ? bg.color : "transparent",
+ minHeight: lineHeightPx,
+ textDecoration: element.textDecoration ?? "none",
+ padding: shouldShowBackground
+ ? `${displayPaddingY}px ${displayPaddingX}px`
+ : 0,
+ minWidth: 1,
+ }}
+ onInput={handleInput}
+ onBlur={onCommit}
+ onKeyDown={(event) => handleKeyDown({ event })}
+ >
+ {element.content || ""}
+ </div>
+ </div>
+ );
+}
|
