Obsidian/.obsidian/plugins/obsidian-footnotes/main.js

'use strict';

var obsidian = require('obsidian');

/******************************************************************************
Copyright (c) Microsoft Corporation.

Permission to use, copy, modify, and/or distribute this software for any
purpose with or without fee is hereby granted.

THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
PERFORMANCE OF THIS SOFTWARE.
***************************************************************************** */

function __awaiter(thisArg, _arguments, P, generator) {
    function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
    return new (P || (P = Promise))(function (resolve, reject) {
        function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
        function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
        function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
        step((generator = generator.apply(thisArg, _arguments || [])).next());
    });
}

class MyPlugin extends obsidian.Plugin {
    constructor() {
        super(...arguments);
        this.detailLineRegex = /\[\^(\d+)\]\:/;
        this.reOnlyMarkers = /\[\^(\d+)\]/gi;
        this.numericalRe = /(\d+)/;
    }
    onload() {
        return __awaiter(this, void 0, void 0, function* () {
            this.addCommand({
                id: "insert-footnote",
                name: "Insert and Navigate Footnote",
                checkCallback: (checking) => {
                    if (checking)
                        return !!this.app.workspace.getActiveViewOfType(obsidian.MarkdownView);
                    this.insertFootnote();
                },
            });
        });
    }
    insertFootnote() {
        const mdView = this.app.workspace.getActiveViewOfType(obsidian.MarkdownView);
        if (!mdView)
            return false;
        if (mdView.editor == undefined)
            return false;
        const doc = mdView.editor;
        const cursorPosition = doc.getCursor();
        const lineText = doc.getLine(cursorPosition.line);
        const markdownText = mdView.data;
        if (this.shouldJumpFromDetailToMarker(lineText, cursorPosition, doc))
            return;
        if (this.shouldJumpFromMarkerToDetail(lineText, cursorPosition, doc))
            return;
        return this.shouldCreateNewFootnote(lineText, cursorPosition, doc, markdownText);
    }
    shouldJumpFromDetailToMarker(lineText, cursorPosition, doc) {
        // check if we're in a footnote detail line ("[^1]: footnote")
        // if so, jump cursor back to the footnote in the text
        // https://github.com/akaalias/obsidian-footnotes#improved-quick-navigation
        let match = lineText.match(this.detailLineRegex);
        if (match) {
            let s = match[0];
            let index = s.replace("[^", "");
            index = index.replace("]:", "");
            let footnote = s.replace(":", "");
            let returnLineIndex = cursorPosition.line;
            // find the FIRST OCCURENCE where this footnote exists in the text
            for (let i = 0; i < doc.lineCount(); i++) {
                let scanLine = doc.getLine(i);
                if (scanLine.contains(footnote)) {
                    let cursorLocationIndex = scanLine.indexOf(footnote);
                    returnLineIndex = i;
                    doc.setCursor({
                        line: returnLineIndex,
                        ch: cursorLocationIndex + footnote.length,
                    });
                    return true;
                }
            }
        }
        return false;
    }
    shouldJumpFromMarkerToDetail(lineText, cursorPosition, doc) {
        // Jump cursor TO detail marker
        // check if the cursor is inside or left or right of a footnote in a line
        // if so, jump cursor to the footnote detail line
        // https://github.com/akaalias/obsidian-footnotes#improved-quick-navigation
        // does this line have a footnote marker?
        // does the cursor overlap with one of them?
        // if so, which one?
        // find this footnote marker's detail line
        // place cursor there
        let reOnlyMarkersMatches = lineText.match(this.reOnlyMarkers);
        let markerTarget = null;
        if (reOnlyMarkersMatches) {
            for (let i = 0; i <= reOnlyMarkersMatches.length; i++) {
                let marker = reOnlyMarkersMatches[i];
                if (marker != undefined) {
                    let indexOfMarkerInLine = lineText.indexOf(marker);
                    if (cursorPosition.ch >= indexOfMarkerInLine &&
                        cursorPosition.ch <= indexOfMarkerInLine + marker.length) {
                        markerTarget = marker;
                        break;
                    }
                }
            }
        }
        if (markerTarget != null) {
            // extract index
            let match = markerTarget.match(this.numericalRe);
            if (match) {
                let indexString = match[0];
                let markerIndex = Number(indexString);
                // find the first line with this detail marker index in it.
                for (let i = 0; i < doc.lineCount(); i++) {
                    let theLine = doc.getLine(i);
                    let lineMatch = theLine.match(this.detailLineRegex);
                    if (lineMatch) {
                        // compare to the index
                        let indexMatch = lineMatch[1];
                        let indexMatchNumber = Number(indexMatch);
                        if (indexMatchNumber == markerIndex) {
                            doc.setCursor({ line: i, ch: lineMatch[0].length + 1 });
                            return true;
                        }
                    }
                }
            }
        }
        return false;
    }
    shouldCreateNewFootnote(lineText, cursorPosition, doc, markdownText) {
        // create new footnote with the next numerical index
        let matches = markdownText.match(this.reOnlyMarkers);
        let currentMax = 1;
        if (matches != null) {
            for (let i = 0; i <= matches.length - 1; i++) {
                let match = matches[i];
                match = match.replace("[^", "");
                match = match.replace("]", "");
                let matchNumber = Number(match);
                if (matchNumber + 1 > currentMax) {
                    currentMax = matchNumber + 1;
                }
            }
        }
        let footNoteId = currentMax;
        let footnoteMarker = `[^${footNoteId}]`;
        let linePart1 = lineText.substr(0, cursorPosition.ch);
        let linePart2 = lineText.substr(cursorPosition.ch);
        let newLine = linePart1 + footnoteMarker + linePart2;
        doc.replaceRange(newLine, { line: cursorPosition.line, ch: 0 }, { line: cursorPosition.line, ch: lineText.length });
        let lastLineIndex = doc.lastLine();
        let lastLine = doc.getLine(lastLineIndex);
        while (lastLineIndex > 0) {
            lastLine = doc.getLine(lastLineIndex);
            if (lastLine.length > 0) {
                doc.replaceRange("", { line: lastLineIndex, ch: 0 }, { line: doc.lastLine(), ch: 0 });
                break;
            }
            lastLineIndex--;
        }
        let footnoteDetail = `\n[^${footNoteId}]: `;
        if (currentMax == 1) {
            footnoteDetail = "\n" + footnoteDetail;
            doc.setLine(doc.lastLine(), lastLine + footnoteDetail);
            doc.setCursor(doc.lastLine() - 1, footnoteDetail.length - 1);
        }
        else {
            doc.setLine(doc.lastLine(), lastLine + footnoteDetail);
            doc.setCursor(doc.lastLine(), footnoteDetail.length - 1);
        }
    }
}

module.exports = MyPlugin;
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