collaborative-codemirror/lib/CodemirrorEditorFacade.js

Binding for collaborative editing support in Codemirror Editor. Connects JSON CRDT str node to Codemirror Editor.

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.CodemirrorEditorFacade = void 0;
class CodemirrorEditorFacade {
    constructor(editor) {
        this.editor = editor;
        this.disposed = false;
        this.d1 = (...specs) => {
            var _a, _b;
            const res = this.d0.apply(this.editor, specs);
            if (this.disposed)
                return res;
            (_a = this.onchange) === null || _a === void 0 ? void 0 : _a.call(this);
            (_b = this.onselection) === null || _b === void 0 ? void 0 : _b.call(this);
            return res;
        };
        this.d0 = editor.dispatch;
        Object.defineProperty(editor, 'dispatch', Object.assign(Object.assign({}, Object.getOwnPropertyDescriptor(editor, 'dispatch')), { value: this.d1 }));
    }
    get() {
        return this.editor.state.doc.toString();
    }
    getLength() {
        return this.editor.state.doc.length;
    }
    set(text) {
        const editor = this.editor;
        const state = editor.state;
        this.d0({
            changes: {
                from: 0,
                to: state.doc.length,
                insert: text,
            },
        });
    }
    ins(from, insert) {
        this.d0({ changes: { from, insert } });
    }
    del(from, length) {
        this.d0({
            changes: {
                from,
                to: from + length,
                insert: '',
            },
        });
    }
    getSelection() {
        var _a;
        const state = this.editor.state;
        const range = (_a = state.selection) === null || _a === void 0 ? void 0 : _a.ranges[0];
        if (!range)
            return null;
        let start = range.anchor;
        let end = range.head;
        let direction = 1;
        if (end < start) {
            [start, end] = [end, start];
            direction = -1;
        }
        return [start, end, direction];
    }
    setSelection(start, end, direction) {
        var _a;
        let anchor = start;
        let head = end;
        if (direction === -1)
            [anchor, head] = [head, anchor];
        (_a = this.d0) === null || _a === void 0 ? void 0 : _a.call(this, { selection: { anchor, head } });
    }
    dispose() {
        this.disposed = true;
        const editor = this.editor;
        const descriptor = Object.getOwnPropertyDescriptor(editor, 'dispatch');
        if ((descriptor === null || descriptor === void 0 ? void 0 : descriptor.value) === this.d1) {
            Object.defineProperty(editor, 'dispatch', Object.assign(Object.assign({}, descriptor), { value: this.d0 }));
        }
    }
}
exports.CodemirrorEditorFacade = CodemirrorEditorFacade;
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