169 lines
8.2 KiB
TypeScript
169 lines
8.2 KiB
TypeScript
/*
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Copyright 2024 New Vector Ltd.
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Copyright 2019 The Matrix.org Foundation C.I.C.
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SPDX-License-Identifier: AGPL-3.0-only OR GPL-3.0-only
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Please see LICENSE files in the repository root for full details.
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*/
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import { getLineAndNodePosition } from "../../src/editor/caret";
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import EditorModel from "../../src/editor/model";
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import { createPartCreator } from "./mock";
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describe("editor/caret: DOM position for caret", function () {
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describe("basic text handling", function () {
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it("at end of single line", function () {
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const pc = createPartCreator();
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const model = new EditorModel([pc.plain("hello")], pc);
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const { offset, lineIndex, nodeIndex } = getLineAndNodePosition(model, { index: 0, offset: 5 });
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expect(lineIndex).toBe(0);
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expect(nodeIndex).toBe(0);
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expect(offset).toBe(5);
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});
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it("at start of single line", function () {
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const pc = createPartCreator();
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const model = new EditorModel([pc.plain("hello")], pc);
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const { offset, lineIndex, nodeIndex } = getLineAndNodePosition(model, { index: 0, offset: 0 });
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expect(lineIndex).toBe(0);
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expect(nodeIndex).toBe(0);
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expect(offset).toBe(0);
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});
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it("at middle of single line", function () {
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const pc = createPartCreator();
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const model = new EditorModel([pc.plain("hello")], pc);
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const { offset, lineIndex, nodeIndex } = getLineAndNodePosition(model, { index: 0, offset: 2 });
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expect(lineIndex).toBe(0);
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expect(nodeIndex).toBe(0);
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expect(offset).toBe(2);
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});
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});
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describe("handling line breaks", function () {
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it("at start of first line which is empty", function () {
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const pc = createPartCreator();
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const model = new EditorModel([pc.newline(), pc.plain("hello world")], pc);
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const { offset, lineIndex, nodeIndex } = getLineAndNodePosition(model, { index: 0, offset: 0 });
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expect(lineIndex).toBe(0);
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expect(nodeIndex).toBe(-1);
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expect(offset).toBe(0);
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});
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it("at end of last line", function () {
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const pc = createPartCreator();
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const model = new EditorModel([pc.plain("hello"), pc.newline(), pc.plain("world")], pc);
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const { offset, lineIndex, nodeIndex } = getLineAndNodePosition(model, { index: 2, offset: 5 });
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expect(lineIndex).toBe(1);
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expect(nodeIndex).toBe(0);
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expect(offset).toBe(5);
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});
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it("at start of last line", function () {
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const pc = createPartCreator();
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const model = new EditorModel([pc.plain("hello"), pc.newline(), pc.plain("world")], pc);
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const { offset, lineIndex, nodeIndex } = getLineAndNodePosition(model, { index: 2, offset: 0 });
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expect(lineIndex).toBe(1);
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expect(nodeIndex).toBe(0);
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expect(offset).toBe(0);
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});
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it("before empty line", function () {
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const pc = createPartCreator();
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const model = new EditorModel([pc.plain("hello"), pc.newline(), pc.newline(), pc.plain("world")], pc);
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const { offset, lineIndex, nodeIndex } = getLineAndNodePosition(model, { index: 0, offset: 5 });
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expect(lineIndex).toBe(0);
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expect(nodeIndex).toBe(0);
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expect(offset).toBe(5);
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});
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it("in empty line", function () {
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const pc = createPartCreator();
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const model = new EditorModel([pc.plain("hello"), pc.newline(), pc.newline(), pc.plain("world")], pc);
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const { offset, lineIndex, nodeIndex } = getLineAndNodePosition(model, { index: 1, offset: 1 });
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expect(lineIndex).toBe(1);
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expect(nodeIndex).toBe(-1);
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expect(offset).toBe(0);
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});
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it("after empty line", function () {
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const pc = createPartCreator();
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const model = new EditorModel([pc.plain("hello"), pc.newline(), pc.newline(), pc.plain("world")], pc);
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const { offset, lineIndex, nodeIndex } = getLineAndNodePosition(model, { index: 3, offset: 0 });
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expect(lineIndex).toBe(2);
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expect(nodeIndex).toBe(0);
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expect(offset).toBe(0);
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});
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});
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describe("handling non-editable parts and caret nodes", function () {
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it("at start of non-editable part (with plain text around)", function () {
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const pc = createPartCreator();
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const model = new EditorModel(
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[pc.plain("hello"), pc.userPill("Alice", "@alice:hs.tld"), pc.plain("!")],
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pc,
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);
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const { offset, lineIndex, nodeIndex } = getLineAndNodePosition(model, { index: 1, offset: 0 });
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expect(lineIndex).toBe(0);
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expect(nodeIndex).toBe(0);
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expect(offset).toBe(5);
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});
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it("in middle of non-editable part (with plain text around)", function () {
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const pc = createPartCreator();
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const model = new EditorModel(
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[pc.plain("hello"), pc.userPill("Alice", "@alice:hs.tld"), pc.plain("!")],
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pc,
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);
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const { offset, lineIndex, nodeIndex } = getLineAndNodePosition(model, { index: 1, offset: 2 });
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expect(lineIndex).toBe(0);
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expect(nodeIndex).toBe(2);
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expect(offset).toBe(0);
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});
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it("at start of non-editable part (without plain text around)", function () {
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const pc = createPartCreator();
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const model = new EditorModel([pc.userPill("Alice", "@alice:hs.tld")], pc);
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const { offset, lineIndex, nodeIndex } = getLineAndNodePosition(model, { index: 0, offset: 0 });
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expect(lineIndex).toBe(0);
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//presumed nodes on line are (caret, pill, caret)
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expect(nodeIndex).toBe(0);
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expect(offset).toBe(0);
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});
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it("in middle of non-editable part (without plain text around)", function () {
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const pc = createPartCreator();
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const model = new EditorModel([pc.userPill("Alice", "@alice:hs.tld")], pc);
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const { offset, lineIndex, nodeIndex } = getLineAndNodePosition(model, { index: 0, offset: 1 });
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expect(lineIndex).toBe(0);
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//presumed nodes on line are (caret, pill, caret)
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expect(nodeIndex).toBe(2);
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expect(offset).toBe(0);
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});
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it("in middle of a first non-editable part, with another one following", function () {
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const pc = createPartCreator();
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const model = new EditorModel(
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[pc.userPill("Alice", "@alice:hs.tld"), pc.userPill("Bob", "@bob:hs.tld")],
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pc,
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);
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const { offset, lineIndex, nodeIndex } = getLineAndNodePosition(model, { index: 0, offset: 1 });
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expect(lineIndex).toBe(0);
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//presumed nodes on line are (caret, pill, caret, pill, caret)
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expect(nodeIndex).toBe(2);
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expect(offset).toBe(0);
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});
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it("in start of a second non-editable part, with another one before it", function () {
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const pc = createPartCreator();
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const model = new EditorModel(
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[pc.userPill("Alice", "@alice:hs.tld"), pc.userPill("Bob", "@bob:hs.tld")],
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pc,
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);
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const { offset, lineIndex, nodeIndex } = getLineAndNodePosition(model, { index: 1, offset: 0 });
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expect(lineIndex).toBe(0);
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//presumed nodes on line are (caret, pill, caret, pill, caret)
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expect(nodeIndex).toBe(2);
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expect(offset).toBe(0);
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});
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it("in middle of a second non-editable part, with another one before it", function () {
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const pc = createPartCreator();
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const model = new EditorModel(
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[pc.userPill("Alice", "@alice:hs.tld"), pc.userPill("Bob", "@bob:hs.tld")],
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pc,
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);
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const { offset, lineIndex, nodeIndex } = getLineAndNodePosition(model, { index: 1, offset: 1 });
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expect(lineIndex).toBe(0);
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//presumed nodes on line are (caret, pill, caret, pill, caret)
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expect(nodeIndex).toBe(4);
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expect(offset).toBe(0);
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});
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});
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});
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