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Code Issues Packages Projects Releases Wiki Activity

feat: better laser cursor for dark mode (#7132)

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This commit is contained in:
David Luzar
2023-10-11 11:17:27 +02:00
committed by GitHub
parent 7ad02c359a
commit 26ff3993bb
7 changed files with 118 additions and 103 deletions
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3
src/actions/actionCanvas.tsx
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@@ -10,7 +10,7 @@ import { getNormalizedZoom } from "../scene";
import { centerScrollOn } from "../scene/scroll";
import { getStateForZoom } from "../scene/zoom";
import { AppState, NormalizedZoomValue } from "../types";
import { getShortcutKey, setCursor, updateActiveTool } from "../utils";
import { getShortcutKey, updateActiveTool } from "../utils";
import { register } from "./register";
import { Tooltip } from "../components/Tooltip";
import { newElementWith } from "../element/mutateElement";
@@ -21,6 +21,7 @@ import {
} from "../appState";
import { DEFAULT_CANVAS_BACKGROUND_PICKS } from "../colors";
import { Bounds } from "../element/bounds";
import { setCursor } from "../cursor";
export const actionChangeViewBackgroundColor = register({
name: "changeViewBackgroundColor",

3
src/actions/actionFinalize.tsx
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@@ -1,6 +1,6 @@
import { KEYS } from "../keys";
import { isInvisiblySmallElement } from "../element";
import { updateActiveTool, resetCursor } from "../utils";
import { updateActiveTool } from "../utils";
import { ToolButton } from "../components/ToolButton";
import { done } from "../components/icons";
import { t } from "../i18n";
@@ -15,6 +15,7 @@ import {
} from "../element/binding";
import { isBindingElement, isLinearElement } from "../element/typeChecks";
import { AppState } from "../types";
import { resetCursor } from "../cursor";
export const actionFinalize = register({
name: "finalize",

3
src/actions/actionFrame.ts
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@@ -4,7 +4,8 @@ import { removeAllElementsFromFrame } from "../frame";
import { getFrameElements } from "../frame";
import { KEYS } from "../keys";
import { AppClassProperties, AppState } from "../types";
import { setCursorForShape, updateActiveTool } from "../utils";
import { updateActiveTool } from "../utils";
import { setCursorForShape } from "../cursor";
import { register } from "./register";
const isSingleFrameSelected = (appState: AppState, app: AppClassProperties) => {

10
src/components/App.tsx
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@@ -241,18 +241,14 @@ import {
isInputLike,
isToolIcon,
isWritableElement,
resetCursor,
resolvablePromise,
sceneCoordsToViewportCoords,
setCursor,
setCursorForShape,
tupleToCoors,
viewportCoordsToSceneCoords,
withBatchedUpdates,
wrapEvent,
withBatchedUpdatesThrottled,
updateObject,
setEraserCursor,
updateActiveTool,
getShortcutKey,
isTransparent,
@@ -371,6 +367,12 @@ import { Renderer } from "../scene/Renderer";
import { ShapeCache } from "../scene/ShapeCache";
import { LaserToolOverlay } from "./LaserTool/LaserTool";
import { LaserPathManager } from "./LaserTool/LaserPathManager";
import {
setEraserCursor,
setCursor,
resetCursor,
setCursorForShape,
} from "../cursor";
const AppContext = React.createContext<AppClassProperties>(null!);
const AppPropsContext = React.createContext<AppProps>(null!);

103
src/cursor.ts Normal file
View File

@@ -0,0 +1,103 @@
import { CURSOR_TYPE, MIME_TYPES, THEME } from "./constants";
import OpenColor from "open-color";
import { AppState, DataURL } from "./types";
import { isHandToolActive, isEraserActive } from "./appState";
const laserPointerCursorSVG_tag = `<svg viewBox="0 0 24 24" stroke-width="1" width="28" height="28" xmlns="http://www.w3.org/2000/svg">`;
const laserPointerCursorBackgroundSVG = `<path d="M6.164 11.755a5.314 5.314 0 0 1-4.932-5.298 5.314 5.314 0 0 1 5.311-5.311 5.314 5.314 0 0 1 5.307 5.113l8.773 8.773a3.322 3.322 0 0 1 0 4.696l-.895.895a3.322 3.322 0 0 1-4.696 0l-8.868-8.868Z" style="fill:#fff"/>`;
const laserPointerCursorIconSVG = `<path stroke="#1b1b1f" fill="#fff" d="m7.868 11.113 7.773 7.774a2.359 2.359 0 0 0 1.667.691 2.368 2.368 0 0 0 2.357-2.358c0-.625-.248-1.225-.69-1.667L11.201 7.78 9.558 9.469l-1.69 1.643v.001Zm10.273 3.606-3.333 3.333m-3.25-6.583 2 2m-7-7 3 3M3.664 3.625l1 1M2.529 6.922l1.407-.144m5.735-2.932-1.118.866M4.285 9.823l.758-1.194m1.863-6.207-.13 1.408"/>`;
const laserPointerCursorDataURL_lightMode = `data:${
MIME_TYPES.svg
},${encodeURIComponent(
`${laserPointerCursorSVG_tag}${laserPointerCursorIconSVG}</svg>`,
)}`;
const laserPointerCursorDataURL_darkMode = `data:${
MIME_TYPES.svg
},${encodeURIComponent(
`${laserPointerCursorSVG_tag}${laserPointerCursorBackgroundSVG}${laserPointerCursorIconSVG}</svg>`,
)}`;
export const resetCursor = (interactiveCanvas: HTMLCanvasElement | null) => {
if (interactiveCanvas) {
interactiveCanvas.style.cursor = "";
}
};
export const setCursor = (
interactiveCanvas: HTMLCanvasElement | null,
cursor: string,
) => {
if (interactiveCanvas) {
interactiveCanvas.style.cursor = cursor;
}
};
let eraserCanvasCache: any;
let previewDataURL: string;
export const setEraserCursor = (
interactiveCanvas: HTMLCanvasElement | null,
theme: AppState["theme"],
) => {
const cursorImageSizePx = 20;
const drawCanvas = () => {
const isDarkTheme = theme === THEME.DARK;
eraserCanvasCache = document.createElement("canvas");
eraserCanvasCache.theme = theme;
eraserCanvasCache.height = cursorImageSizePx;
eraserCanvasCache.width = cursorImageSizePx;
const context = eraserCanvasCache.getContext("2d")!;
context.lineWidth = 1;
context.beginPath();
context.arc(
eraserCanvasCache.width / 2,
eraserCanvasCache.height / 2,
5,
0,
2 * Math.PI,
);
context.fillStyle = isDarkTheme ? OpenColor.black : OpenColor.white;
context.fill();
context.strokeStyle = isDarkTheme ? OpenColor.white : OpenColor.black;
context.stroke();
previewDataURL = eraserCanvasCache.toDataURL(MIME_TYPES.svg) as DataURL;
};
if (!eraserCanvasCache || eraserCanvasCache.theme !== theme) {
drawCanvas();
}
setCursor(
interactiveCanvas,
`url(${previewDataURL}) ${cursorImageSizePx / 2} ${
cursorImageSizePx / 2
}, auto`,
);
};
export const setCursorForShape = (
interactiveCanvas: HTMLCanvasElement | null,
appState: Pick<AppState, "activeTool" | "theme">,
) => {
if (!interactiveCanvas) {
return;
}
if (appState.activeTool.type === "selection") {
resetCursor(interactiveCanvas);
} else if (isHandToolActive(appState)) {
interactiveCanvas.style.cursor = CURSOR_TYPE.GRAB;
} else if (isEraserActive(appState)) {
setEraserCursor(interactiveCanvas, appState.theme);
// do nothing if image tool is selected which suggests there's
// a image-preview set as the cursor
// Ignore custom type as well and let host decide
} else if (appState.activeTool.type === "laser") {
const url =
appState.theme === THEME.LIGHT
? laserPointerCursorDataURL_lightMode
: laserPointerCursorDataURL_darkMode;
interactiveCanvas.style.cursor = `url(${url}), auto`;
} else if (!["image", "custom"].includes(appState.activeTool.type)) {
interactiveCanvas.style.cursor = CURSOR_TYPE.CROSSHAIR;
}
};

3
src/element/embeddable.ts
View File

@@ -2,7 +2,8 @@ import { register } from "../actions/register";
import { FONT_FAMILY, VERTICAL_ALIGN } from "../constants";
import { t } from "../i18n";
import { ExcalidrawProps } from "../types";
import { getFontString, setCursorForShape, updateActiveTool } from "../utils";
import { getFontString, updateActiveTool } from "../utils";
import { setCursorForShape } from "../cursor";
import { newTextElement } from "./newElement";
import { getContainerElement, wrapText } from "./textElement";
import { isEmbeddableElement } from "./typeChecks";

96
src/utils.ts
View File

@@ -1,13 +1,9 @@
import oc from "open-color";
import { COLOR_PALETTE } from "./colors";
import {
CURSOR_TYPE,
DEFAULT_VERSION,
EVENT,
FONT_FAMILY,
isDarwin,
MIME_TYPES,
THEME,
WINDOWS_EMOJI_FALLBACK_FONT,
} from "./constants";
import {
@@ -15,20 +11,11 @@ import {
FontString,
NonDeletedExcalidrawElement,
} from "./element/types";
import { ActiveTool, AppState, DataURL, ToolType, Zoom } from "./types";
import { ActiveTool, AppState, ToolType, Zoom } from "./types";
import { unstable_batchedUpdates } from "react-dom";
import { isEraserActive, isHandToolActive } from "./appState";
import { ResolutionType } from "./utility-types";
import React from "react";
const laserPointerCursorSVG = `<svg viewBox="0 0 20 20" width="20" height="20" xmlns="http://www.w3.org/2000/svg" xml:space="preserve" style="fill-rule:evenodd;clip-rule:evenodd;stroke-linecap:round;stroke-linejoin:round">
<path d="m6.771 10.113 7.773 7.774a2.359 2.359 0 0 0 1.667.691 2.368 2.368 0 0 0 2.357-2.358c0-.625-.248-1.225-.69-1.667L10.104 6.78 8.461 8.469l-1.69 1.643v.001Zm10.273 3.606-3.333 3.333m-3.25-6.583 2 2m-7-7 3 3M2.567 2.625l1 1M1.432 5.922l1.407-.144m5.735-2.932-1.118.866M3.188 8.823l.758-1.194m1.863-6.207-.13 1.408" style="fill:none;fill-rule:nonzero;stroke:#1b1b1f;stroke-width:1.25px"/>
</svg>`;
const laserPointerCursorDataURL = `data:${MIME_TYPES.svg},${encodeURIComponent(
`${laserPointerCursorSVG}`,
)}`;
let mockDateTime: string | null = null;
export const setDateTimeForTests = (dateTime: string) => {
@@ -402,87 +389,6 @@ export const updateActiveTool = (
};
};
export const resetCursor = (interactiveCanvas: HTMLCanvasElement | null) => {
if (interactiveCanvas) {
interactiveCanvas.style.cursor = "";
}
};
export const setCursor = (
interactiveCanvas: HTMLCanvasElement | null,
cursor: string,
) => {
if (interactiveCanvas) {
interactiveCanvas.style.cursor = cursor;
}
};
let eraserCanvasCache: any;
let previewDataURL: string;
export const setEraserCursor = (
interactiveCanvas: HTMLCanvasElement | null,
theme: AppState["theme"],
) => {
const cursorImageSizePx = 20;
const drawCanvas = () => {
const isDarkTheme = theme === THEME.DARK;
eraserCanvasCache = document.createElement("canvas");
eraserCanvasCache.theme = theme;
eraserCanvasCache.height = cursorImageSizePx;
eraserCanvasCache.width = cursorImageSizePx;
const context = eraserCanvasCache.getContext("2d")!;
context.lineWidth = 1;
context.beginPath();
context.arc(
eraserCanvasCache.width / 2,
eraserCanvasCache.height / 2,
5,
0,
2 * Math.PI,
);
context.fillStyle = isDarkTheme ? oc.black : oc.white;
context.fill();
context.strokeStyle = isDarkTheme ? oc.white : oc.black;
context.stroke();
previewDataURL = eraserCanvasCache.toDataURL(MIME_TYPES.svg) as DataURL;
};
if (!eraserCanvasCache || eraserCanvasCache.theme !== theme) {
drawCanvas();
}
setCursor(
interactiveCanvas,
`url(${previewDataURL}) ${cursorImageSizePx / 2} ${
cursorImageSizePx / 2
}, auto`,
);
};
export const setCursorForShape = (
interactiveCanvas: HTMLCanvasElement | null,
appState: Pick<AppState, "activeTool" | "theme">,
) => {
if (!interactiveCanvas) {
return;
}
if (appState.activeTool.type === "selection") {
resetCursor(interactiveCanvas);
} else if (isHandToolActive(appState)) {
interactiveCanvas.style.cursor = CURSOR_TYPE.GRAB;
} else if (isEraserActive(appState)) {
setEraserCursor(interactiveCanvas, appState.theme);
// do nothing if image tool is selected which suggests there's
// a image-preview set as the cursor
// Ignore custom type as well and let host decide
} else if (appState.activeTool.type === "laser") {
const url = laserPointerCursorDataURL;
interactiveCanvas.style.cursor = `url(${url}), auto`;
} else if (!["image", "custom"].includes(appState.activeTool.type)) {
interactiveCanvas.style.cursor = CURSOR_TYPE.CROSSHAIR;
}
};
export const isFullScreen = () =>
document.fullscreenElement?.nodeName === "HTML";