mirror of
https://github.com/zsviczian/obsidian-excalidraw-plugin.git
synced 2025-08-06 05:46:28 +00:00
578 lines
16 KiB
TypeScript
578 lines
16 KiB
TypeScript
//import Excalidraw from "@zsviczian/excalidraw";
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import {
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App,
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Notice,
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request,
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TFile,
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} from "obsidian";
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import { Random } from "roughjs/bin/math";
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import { DataURL, Zoom } from "@zsviczian/excalidraw/types/types";
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import {
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CASCADIA_FONT,
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REG_BLOCK_REF_CLEAN,
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VIRGIL_FONT,
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PLUGIN_ID,
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FRONTMATTER_KEY_EXPORT_DARK,
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FRONTMATTER_KEY_EXPORT_TRANSPARENT,
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FRONTMATTER_KEY_EXPORT_SVGPADDING,
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FRONTMATTER_KEY_EXPORT_PNGSCALE,
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} from "../Constants";
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import ExcalidrawPlugin from "../main";
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import { ExcalidrawElement } from "@zsviczian/excalidraw/types/element/types";
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import { ExportSettings } from "../ExcalidrawView";
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import { compressToBase64, decompressFromBase64 } from "lz-string";
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import { getIMGFilename } from "./FileUtils";
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declare const PLUGIN_VERSION:string;
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const {
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exportToSvg,
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exportToBlob,
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//@ts-ignore
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} = excalidrawLib;
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declare module "obsidian" {
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interface Workspace {
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getAdjacentLeafInDirection(
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leaf: WorkspaceLeaf,
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direction: string,
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): WorkspaceLeaf;
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}
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interface Vault {
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getConfig(option: "attachmentFolderPath"): string;
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}
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}
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let versionUpdateChecked = false;
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export const checkExcalidrawVersion = async (app: App) => {
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if (versionUpdateChecked) {
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return;
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}
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versionUpdateChecked = true;
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try {
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const gitAPIrequest = async () => {
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return JSON.parse(
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await request({
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url: `https://api.github.com/repos/zsviczian/obsidian-excalidraw-plugin/releases?per_page=5&page=1`,
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}),
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);
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};
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const latestVersion = (await gitAPIrequest())
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.map((el: any) => {
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return {
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version: el.tag_name,
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published: new Date(el.published_at),
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};
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})
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.filter((el: any) => el.version.match(/^\d+\.\d+\.\d+$/))
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.sort((el1: any, el2: any) => el2.published - el1.published)[0].version;
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if (isVersionNewerThanOther(latestVersion,PLUGIN_VERSION)) {
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new Notice(
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`A newer version of Excalidraw is available in Community Plugins.\n\nYou are using ${PLUGIN_VERSION}.\nThe latest is ${latestVersion}`,
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);
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}
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} catch (e) {
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errorlog({ where: "Utils/checkExcalidrawVersion", error: e });
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}
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setTimeout(() => (versionUpdateChecked = false), 28800000); //reset after 8 hours
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};
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const random = new Random(Date.now());
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export const randomInteger = () => Math.floor(random.next() * 2 ** 31);
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//https://macromates.com/blog/2006/wrapping-text-with-regular-expressions/
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export function wrapText(
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text: string,
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lineLen: number,
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forceWrap: boolean = false,
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tolerance: number = 0,
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): string {
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if (!lineLen) {
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return text;
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}
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let outstring = "";
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if (forceWrap) {
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for (const t of text.split("\n")) {
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const v = t.match(new RegExp(`(.){1,${lineLen}}`, "g"));
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outstring += v ? `${v.join("\n")}\n` : "\n";
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}
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return outstring.replace(/\n$/, "");
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}
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// 1 2 3 4
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const reg = new RegExp(
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`(.{1,${lineLen}})(\\s+|$\\n?)|([^\\s]{1,${
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lineLen + tolerance
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}})(\\s+|$\\n?)?`,
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//`(.{1,${lineLen}})(\\s+|$\\n?)|([^\\s]+)(\\s+|$\\n?)`,
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"gm",
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);
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const res = text.matchAll(reg);
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let parts;
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while (!(parts = res.next()).done) {
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outstring += parts.value[1]
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? parts.value[1].trimEnd()
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: parts.value[3].trimEnd();
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const newLine =
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(parts.value[2] ? parts.value[2].split("\n").length - 1 : 0) +
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(parts.value[4] ? parts.value[4].split("\n").length - 1 : 0);
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outstring += "\n".repeat(newLine);
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if (newLine === 0) {
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outstring += "\n";
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}
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}
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return outstring.replace(/\n$/, "");
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}
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const rotate = (
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pointX: number,
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pointY: number,
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centerX: number,
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centerY: number,
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angle: number,
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): [number, number] =>
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// 𝑎′𝑥=(𝑎𝑥−𝑐𝑥)cos𝜃−(𝑎𝑦−𝑐𝑦)sin𝜃+𝑐𝑥
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// 𝑎′𝑦=(𝑎𝑥−𝑐𝑥)sin𝜃+(𝑎𝑦−𝑐𝑦)cos𝜃+𝑐𝑦.
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// https://math.stackexchange.com/questions/2204520/how-do-i-rotate-a-line-segment-in-a-specific-point-on-the-line
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[
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(pointX - centerX) * Math.cos(angle) -
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(pointY - centerY) * Math.sin(angle) +
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centerX,
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(pointX - centerX) * Math.sin(angle) +
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(pointY - centerY) * Math.cos(angle) +
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centerY,
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];
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export const rotatedDimensions = (
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element: ExcalidrawElement,
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): [number, number, number, number] => {
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if (element.angle === 0) {
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return [element.x, element.y, element.width, element.height];
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}
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const centerX = element.x + element.width / 2;
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const centerY = element.y + element.height / 2;
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const [left, top] = rotate(
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element.x,
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element.y,
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centerX,
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centerY,
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element.angle,
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);
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const [right, bottom] = rotate(
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element.x + element.width,
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element.y + element.height,
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centerX,
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centerY,
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element.angle,
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);
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return [
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left < right ? left : right,
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top < bottom ? top : bottom,
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Math.abs(left - right),
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Math.abs(top - bottom),
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];
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};
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export const viewportCoordsToSceneCoords = (
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{ clientX, clientY }: { clientX: number; clientY: number },
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{
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zoom,
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offsetLeft,
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offsetTop,
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scrollX,
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scrollY,
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}: {
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zoom: Zoom;
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offsetLeft: number;
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offsetTop: number;
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scrollX: number;
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scrollY: number;
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},
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) => {
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const invScale = 1 / zoom.value;
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const x = (clientX - offsetLeft) * invScale - scrollX;
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const y = (clientY - offsetTop) * invScale - scrollY;
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return { x, y };
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};
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export const getDataURL = async (
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file: ArrayBuffer,
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mimeType: string,
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): Promise<DataURL> => {
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return new Promise((resolve, reject) => {
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const reader = new FileReader();
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reader.onload = () => {
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const dataURL = reader.result as DataURL;
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resolve(dataURL);
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};
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reader.onerror = (error) => reject(error);
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reader.readAsDataURL(new Blob([new Uint8Array(file)], { type: mimeType }));
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});
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};
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export const getFontDataURL = async (
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app: App,
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fontFileName: string,
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sourcePath: string,
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name?: string,
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): Promise<{ fontDef: string; fontName: string; dataURL: string }> => {
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let fontDef: string = "";
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let fontName = "";
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let dataURL = "";
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const f = app.metadataCache.getFirstLinkpathDest(fontFileName, sourcePath);
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if (f) {
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const ab = await app.vault.readBinary(f);
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const mimeType = f.extension.startsWith("woff")
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? "application/font-woff"
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: "font/truetype";
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fontName = name ?? f.basename;
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dataURL = await getDataURL(ab, mimeType);
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fontDef = ` @font-face {font-family: "${fontName}";src: url("${dataURL}") format("${
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f.extension === "ttf" ? "truetype" : f.extension
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}");}`;
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const split = fontDef.split(";base64,", 2);
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fontDef = `${split[0]};charset=utf-8;base64,${split[1]}`;
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}
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return { fontDef, fontName, dataURL };
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};
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export const svgToBase64 = (svg: string): string => {
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return `data:image/svg+xml;base64,${btoa(
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unescape(encodeURIComponent(svg.replaceAll(" ", " "))),
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)}`;
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};
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export const getBinaryFileFromDataURL = (dataURL: string): ArrayBuffer => {
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if (!dataURL) {
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return null;
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}
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const parts = dataURL.matchAll(/base64,(.*)/g).next();
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const binary_string = window.atob(parts.value[1]);
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const len = binary_string.length;
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const bytes = new Uint8Array(len);
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for (let i = 0; i < len; i++) {
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bytes[i] = binary_string.charCodeAt(i);
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}
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return bytes.buffer;
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};
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export const getSVG = async (
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scene: any,
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exportSettings: ExportSettings,
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padding: number,
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): Promise<SVGSVGElement> => {
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try {
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return await exportToSvg({
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elements: scene.elements,
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appState: {
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exportBackground: exportSettings.withBackground,
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exportWithDarkMode: exportSettings.withTheme
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? scene.appState?.theme != "light"
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: false,
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...scene.appState,
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},
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files: scene.files,
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exportPadding: padding,
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});
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} catch (error) {
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return null;
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}
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};
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export const getPNG = async (
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scene: any,
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exportSettings: ExportSettings,
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scale: number = 1,
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) => {
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try {
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return await exportToBlob({
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elements: scene.elements,
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appState: {
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exportBackground: exportSettings.withBackground,
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exportWithDarkMode: exportSettings.withTheme
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? scene.appState?.theme != "light"
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: false,
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...scene.appState,
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},
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files: scene.files,
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mimeType: "image/png",
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getDimensions: (width: number, height: number) => ({
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width: width * scale,
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height: height * scale,
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scale,
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}),
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});
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} catch (error) {
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errorlog({ where: "Utils.getPNG", error });
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return null;
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}
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};
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export const getQuickImagePreview = async (
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plugin: ExcalidrawPlugin,
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path: string,
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extension: "png" | "svg",
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): Promise<any> => {
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if (!plugin.settings.displayExportedImageIfAvailable) {
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return null;
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}
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const imagePath = getIMGFilename(path, extension);
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const file = plugin.app.vault.getAbstractFileByPath(imagePath);
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if (!file || !(file instanceof TFile)) {
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return null;
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}
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switch (extension) {
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case "png":
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return await plugin.app.vault.readBinary(file);
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default:
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return await plugin.app.vault.read(file);
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}
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};
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export const embedFontsInSVG = (
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svg: SVGSVGElement,
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plugin: ExcalidrawPlugin,
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): SVGSVGElement => {
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//replace font references with base64 fonts
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const includesVirgil =
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svg.querySelector("text[font-family^='Virgil']") != null;
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const includesCascadia =
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svg.querySelector("text[font-family^='Cascadia']") != null;
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const includesLocalFont =
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svg.querySelector("text[font-family^='LocalFont']") != null;
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const defs = svg.querySelector("defs");
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if (defs && (includesCascadia || includesVirgil || includesLocalFont)) {
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defs.innerHTML = `<style>${includesVirgil ? VIRGIL_FONT : ""}${
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includesCascadia ? CASCADIA_FONT : ""
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}${includesLocalFont ? plugin.fourthFontDef : ""}</style>`;
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}
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return svg;
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};
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export const getImageSize = async (
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src: string,
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): Promise<{ height: number; width: number }> => {
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return new Promise((resolve, reject) => {
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const img = new Image();
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img.onload = () => resolve({ height: img.naturalHeight, width: img.naturalWidth });
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img.onerror = reject;
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img.src = src;
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});
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};
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export const scaleLoadedImage = (
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scene: any,
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files: any,
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): { dirty: boolean; scene: any } => {
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let dirty = false;
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if (!files || !scene) {
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return { dirty, scene };
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}
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for (const f of files) {
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const [w_image, h_image] = [f.size.width, f.size.height];
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const imageAspectRatio = f.size.width / f.size.height;
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scene.elements
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.filter((e: any) => e.type === "image" && e.fileId === f.id)
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.forEach((el: any) => {
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const [w_old, h_old] = [el.width, el.height];
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const elementAspectRatio = w_old / h_old;
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if (imageAspectRatio != elementAspectRatio) {
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dirty = true;
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const h_new = Math.sqrt((w_old * h_old * h_image) / w_image);
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const w_new = Math.sqrt((w_old * h_old * w_image) / h_image);
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el.height = h_new;
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el.width = w_new;
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el.y += (h_old - h_new) / 2;
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el.x += (w_old - w_new) / 2;
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}
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});
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return { dirty, scene };
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}
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};
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export const setLeftHandedMode = (isLeftHanded: boolean) => {
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const visitedDocs = new Set<Document>();
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app.workspace.iterateAllLeaves((leaf) => {
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const ownerDocument = app.isMobile?document:leaf.view.containerEl.ownerDocument;
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if(!ownerDocument) return;
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if(visitedDocs.has(ownerDocument)) return;
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visitedDocs.add(ownerDocument);
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const newStylesheet = ownerDocument.createElement("style");
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newStylesheet.id = "excalidraw-letf-handed";
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newStylesheet.textContent = `.excalidraw .App-bottom-bar{justify-content:flex-end;}`;
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const oldStylesheet = ownerDocument.getElementById(newStylesheet.id);
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if (oldStylesheet) {
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ownerDocument.head.removeChild(oldStylesheet);
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}
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if (isLeftHanded) {
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ownerDocument.head.appendChild(newStylesheet);
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}
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})
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};
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export type LinkParts = {
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original: string;
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path: string;
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isBlockRef: boolean;
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ref: string;
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width: number;
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height: number;
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};
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export const getLinkParts = (fname: string, file?: TFile): LinkParts => {
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const REG = /(^[^#\|]*)#?(\^)?([^\|]*)?\|?(\d*)x?(\d*)/;
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const parts = fname.match(REG);
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return {
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original: fname,
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path: file && parts[1] === "" ? file.path : parts[1],
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isBlockRef: parts[2] === "^",
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ref: parts[3]?.replaceAll(REG_BLOCK_REF_CLEAN, ""),
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width: parts[4] ? parseInt(parts[4]) : undefined,
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height: parts[5] ? parseInt(parts[5]) : undefined,
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};
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};
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export const compress = (data: string): string => {
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return compressToBase64(data).replace(/(.{64})/g, "$1\n\n");
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};
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export const decompress = (data: string): string => {
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return decompressFromBase64(data.replaceAll("\n", "").replaceAll("\r", ""));
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};
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export const hasExportTheme = (
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plugin: ExcalidrawPlugin,
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file: TFile,
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): boolean => {
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if (file) {
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const fileCache = plugin.app.metadataCache.getFileCache(file);
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if (
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fileCache?.frontmatter &&
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fileCache.frontmatter[FRONTMATTER_KEY_EXPORT_DARK] != null
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) {
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return true;
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}
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}
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return false;
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};
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export const getExportTheme = (
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plugin: ExcalidrawPlugin,
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file: TFile,
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theme: string,
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): string => {
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if (file) {
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const fileCache = plugin.app.metadataCache.getFileCache(file);
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if (
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fileCache?.frontmatter &&
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fileCache.frontmatter[FRONTMATTER_KEY_EXPORT_DARK] != null
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) {
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return fileCache.frontmatter[FRONTMATTER_KEY_EXPORT_DARK]
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? "dark"
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: "light";
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}
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}
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return plugin.settings.exportWithTheme ? theme : "light";
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};
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export const hasExportBackground = (
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plugin: ExcalidrawPlugin,
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file: TFile,
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): boolean => {
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if (file) {
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const fileCache = plugin.app.metadataCache.getFileCache(file);
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if (
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fileCache?.frontmatter &&
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fileCache.frontmatter[FRONTMATTER_KEY_EXPORT_TRANSPARENT] != null
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) {
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return true;
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}
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}
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return false;
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};
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export const getWithBackground = (
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plugin: ExcalidrawPlugin,
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file: TFile,
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): boolean => {
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if (file) {
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const fileCache = plugin.app.metadataCache.getFileCache(file);
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if (
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fileCache?.frontmatter &&
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fileCache.frontmatter[FRONTMATTER_KEY_EXPORT_TRANSPARENT] != null
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) {
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return !fileCache.frontmatter[FRONTMATTER_KEY_EXPORT_TRANSPARENT];
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||
}
|
||
}
|
||
return plugin.settings.exportWithBackground;
|
||
};
|
||
|
||
export const getSVGPadding = (
|
||
plugin: ExcalidrawPlugin,
|
||
file: TFile,
|
||
): number => {
|
||
if (file) {
|
||
const fileCache = plugin.app.metadataCache.getFileCache(file);
|
||
if (
|
||
fileCache?.frontmatter &&
|
||
fileCache.frontmatter[FRONTMATTER_KEY_EXPORT_SVGPADDING] != null
|
||
) {
|
||
const val = parseInt(
|
||
fileCache.frontmatter[FRONTMATTER_KEY_EXPORT_SVGPADDING],
|
||
);
|
||
if (!isNaN(val)) {
|
||
return val;
|
||
}
|
||
}
|
||
}
|
||
return plugin.settings.exportPaddingSVG;
|
||
};
|
||
|
||
export const getPNGScale = (plugin: ExcalidrawPlugin, file: TFile): number => {
|
||
if (file) {
|
||
const fileCache = plugin.app.metadataCache.getFileCache(file);
|
||
if (
|
||
fileCache?.frontmatter &&
|
||
fileCache.frontmatter[FRONTMATTER_KEY_EXPORT_PNGSCALE] != null
|
||
) {
|
||
const val = parseFloat(
|
||
fileCache.frontmatter[FRONTMATTER_KEY_EXPORT_PNGSCALE],
|
||
);
|
||
if (!isNaN(val) && val > 0) {
|
||
return val;
|
||
}
|
||
}
|
||
}
|
||
return plugin.settings.pngExportScale;
|
||
};
|
||
|
||
export const isVersionNewerThanOther = (version: string, otherVersion: string): boolean => {
|
||
const v = version.match(/(\d*)\.(\d*)\.(\d*)/);
|
||
const o = otherVersion.match(/(\d*)\.(\d*)\.(\d*)/);
|
||
|
||
return Boolean(v && v.length === 4 && o && o.length === 4 &&
|
||
!(isNaN(parseInt(v[1])) || isNaN(parseInt(v[2])) || isNaN(parseInt(v[3]))) &&
|
||
!(isNaN(parseInt(o[1])) || isNaN(parseInt(o[2])) || isNaN(parseInt(o[3]))) &&
|
||
(
|
||
parseInt(v[1])>parseInt(o[1]) ||
|
||
(parseInt(v[1]) >= parseInt(o[1]) && parseInt(v[2]) > parseInt(o[2])) ||
|
||
(parseInt(v[1]) >= parseInt(o[1]) && parseInt(v[2]) >= parseInt(o[2]) && parseInt(v[3]) > parseInt(o[3]))
|
||
)
|
||
)
|
||
}
|
||
|
||
export const errorlog = (data: {}) => {
|
||
console.error({ plugin: "Excalidraw", ...data });
|
||
};
|
||
|
||
export const sleep = async (ms: number) => new Promise((resolve) => setTimeout(resolve, ms));
|
||
|
||
export const log = console.log.bind(window.console);
|
||
export const debug = console.log.bind(window.console);
|
||
//export const debug = function(){};
|