420 lines
17 KiB
TypeScript
420 lines
17 KiB
TypeScript
/*
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Copyright 2024 New Vector Ltd.
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Copyright 2023 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 React from "react";
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import {
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Suggestion,
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findSuggestionInText,
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getMappedSuggestion,
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processCommand,
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processEmojiReplacement,
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processMention,
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processSelectionChange,
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} from "../../../../../../../src/components/views/rooms/wysiwyg_composer/hooks/useSuggestion";
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function createMockPlainTextSuggestionPattern(props: Partial<Suggestion> = {}): Suggestion {
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return {
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mappedSuggestion: { keyChar: "/", type: "command", text: "some text", ...props.mappedSuggestion },
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node: document.createTextNode(""),
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startOffset: 0,
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endOffset: 0,
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...props,
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};
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}
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function createMockCustomSuggestionPattern(props: Partial<Suggestion> = {}): Suggestion {
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return {
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mappedSuggestion: { keyChar: "", type: "custom", text: "🙂", ...props.mappedSuggestion },
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node: document.createTextNode(":)"),
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startOffset: 0,
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endOffset: 2,
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...props,
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};
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}
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describe("processCommand", () => {
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it("does not change parent hook state if suggestion is null", () => {
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// create a mockSuggestion using the text node above
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const mockSetSuggestion = jest.fn();
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const mockSetText = jest.fn();
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// call the function with a null suggestion
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processCommand("should not be seen", null, mockSetSuggestion, mockSetText);
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// check that the parent state setter has not been called
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expect(mockSetText).not.toHaveBeenCalled();
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});
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it("can change the parent hook state when required", () => {
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// create a div and append a text node to it with some initial text
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const editorDiv = document.createElement("div");
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const initialText = "text";
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const textNode = document.createTextNode(initialText);
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editorDiv.appendChild(textNode);
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// create a mockSuggestion using the text node above
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const mockSuggestion = createMockPlainTextSuggestionPattern({ node: textNode });
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const mockSetSuggestion = jest.fn();
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const mockSetText = jest.fn();
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const replacementText = "/replacement text";
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processCommand(replacementText, mockSuggestion, mockSetSuggestion, mockSetText);
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// check that the text has changed and includes a trailing space
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expect(mockSetText).toHaveBeenCalledWith(`${replacementText} `);
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});
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});
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describe("processEmojiReplacement", () => {
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it("does not change parent hook state if suggestion is null", () => {
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// create a mockSuggestion using the text node above
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const mockSetSuggestion = jest.fn();
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const mockSetText = jest.fn();
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// call the function with a null suggestion
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processEmojiReplacement(null, mockSetSuggestion, mockSetText);
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// check that the parent state setter has not been called
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expect(mockSetText).not.toHaveBeenCalled();
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});
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it("can change the parent hook state when required", () => {
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// create a div and append a text node to it with some initial text
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const editorDiv = document.createElement("div");
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const initialText = ":)";
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const textNode = document.createTextNode(initialText);
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editorDiv.appendChild(textNode);
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// create a mockSuggestion using the text node above
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const mockSuggestion = createMockCustomSuggestionPattern({ node: textNode });
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const mockSetSuggestion = jest.fn();
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const mockSetText = jest.fn();
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const replacementText = "🙂";
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processEmojiReplacement(mockSuggestion, mockSetSuggestion, mockSetText);
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// check that the text has changed and includes a trailing space
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expect(mockSetText).toHaveBeenCalledWith(replacementText);
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});
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});
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describe("processMention", () => {
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// TODO refactor and expand tests when mentions become <a> tags
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it("returns early when suggestion is null", () => {
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const mockSetSuggestion = jest.fn();
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const mockSetText = jest.fn();
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processMention("href", "displayName", new Map(), null, mockSetSuggestion, mockSetText);
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expect(mockSetSuggestion).not.toHaveBeenCalled();
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expect(mockSetText).not.toHaveBeenCalled();
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});
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it("can insert a mention into a text node", () => {
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// make a text node and an editor div, set the cursor inside the text node and then
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// append node to editor, then editor to document
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const textNode = document.createTextNode("@a");
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const mockEditor = document.createElement("div");
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mockEditor.appendChild(textNode);
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document.body.appendChild(mockEditor);
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document.getSelection()?.setBaseAndExtent(textNode, 1, textNode, 1);
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// call the util function
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const href = "href";
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const displayName = "displayName";
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const mockSetSuggestionData = jest.fn();
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const mockSetText = jest.fn();
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processMention(
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href,
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displayName,
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new Map([["style", "test"]]),
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{ node: textNode, startOffset: 0, endOffset: 2 } as unknown as Suggestion,
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mockSetSuggestionData,
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mockSetText,
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);
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// check that the editor has a single child
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expect(mockEditor.children).toHaveLength(1);
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const linkElement = mockEditor.firstElementChild as HTMLElement;
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// and that the child is an <a> tag with the expected attributes and content
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expect(linkElement).toBeInstanceOf(HTMLAnchorElement);
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expect(linkElement).toHaveAttribute(href, href);
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expect(linkElement).toHaveAttribute("contenteditable", "false");
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expect(linkElement).toHaveAttribute("style", "test");
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expect(linkElement.textContent).toBe(displayName);
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expect(mockSetText).toHaveBeenCalledWith();
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expect(mockSetSuggestionData).toHaveBeenCalledWith(null);
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});
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});
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describe("processSelectionChange", () => {
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function createMockEditorRef(element: HTMLDivElement | null = null): React.RefObject<HTMLDivElement> {
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return { current: element } as React.RefObject<HTMLDivElement>;
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}
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function appendEditorWithTextNodeContaining(initialText = ""): [HTMLDivElement, Node] {
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// create the elements/nodes
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const mockEditor = document.createElement("div");
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const textNode = document.createTextNode(initialText);
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// append text node to the editor, editor to the document body
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mockEditor.appendChild(textNode);
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document.body.appendChild(mockEditor);
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return [mockEditor, textNode];
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}
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const mockSetSuggestion = jest.fn();
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beforeEach(() => {
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mockSetSuggestion.mockClear();
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});
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it("returns early if current editorRef is null", () => {
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const mockEditorRef = createMockEditorRef(null);
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// we monitor for the call to document.createNodeIterator to indicate an early return
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const nodeIteratorSpy = jest.spyOn(document, "createNodeIterator");
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processSelectionChange(mockEditorRef, jest.fn());
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expect(nodeIteratorSpy).not.toHaveBeenCalled();
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// tidy up to avoid potential impacts on other tests
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nodeIteratorSpy.mockRestore();
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});
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it("calls setSuggestion with null if selection is not a cursor", () => {
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const [mockEditor, textNode] = appendEditorWithTextNodeContaining("content");
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const mockEditorRef = createMockEditorRef(mockEditor);
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// create a selection in the text node that has different start and end locations ie it
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// is not a cursor
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document.getSelection()?.setBaseAndExtent(textNode, 0, textNode, 4);
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// process the selection and check that we do not attempt to set the suggestion
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processSelectionChange(mockEditorRef, mockSetSuggestion);
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expect(mockSetSuggestion).toHaveBeenCalledWith(null);
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});
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it("calls setSuggestion with null if selection cursor is not inside a text node", () => {
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const [mockEditor] = appendEditorWithTextNodeContaining("content");
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const mockEditorRef = createMockEditorRef(mockEditor);
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// create a selection that points at the editor element, not the text node it contains
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document.getSelection()?.setBaseAndExtent(mockEditor, 0, mockEditor, 0);
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// process the selection and check that we do not attempt to set the suggestion
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processSelectionChange(mockEditorRef, mockSetSuggestion);
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expect(mockSetSuggestion).toHaveBeenCalledWith(null);
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});
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it("calls setSuggestion with null if we have an existing suggestion but no command match", () => {
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const [mockEditor, textNode] = appendEditorWithTextNodeContaining("content");
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const mockEditorRef = createMockEditorRef(mockEditor);
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// create a selection in the text node that has identical start and end locations, ie it is a cursor
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document.getSelection()?.setBaseAndExtent(textNode, 0, textNode, 0);
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// the call to process the selection will have an existing suggestion in state due to the second
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// argument being non-null, expect that we clear this suggestion now that the text is not a command
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processSelectionChange(mockEditorRef, mockSetSuggestion);
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expect(mockSetSuggestion).toHaveBeenCalledWith(null);
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});
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it("calls setSuggestion with the expected arguments when text node is valid command", () => {
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const commandText = "/potentialCommand";
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const [mockEditor, textNode] = appendEditorWithTextNodeContaining(commandText);
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const mockEditorRef = createMockEditorRef(mockEditor);
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// create a selection in the text node that has identical start and end locations, ie it is a cursor
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document.getSelection()?.setBaseAndExtent(textNode, 3, textNode, 3);
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// process the change and check the suggestion that is set looks as we expect it to
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processSelectionChange(mockEditorRef, mockSetSuggestion);
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expect(mockSetSuggestion).toHaveBeenCalledWith({
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mappedSuggestion: {
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keyChar: "/",
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type: "command",
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text: "potentialCommand",
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},
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node: textNode,
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startOffset: 0,
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endOffset: commandText.length,
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});
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});
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it("does not treat a command outside the first text node to be a suggestion", () => {
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const [mockEditor] = appendEditorWithTextNodeContaining("some text in first node");
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const [, commandTextNode] = appendEditorWithTextNodeContaining("/potentialCommand");
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const mockEditorRef = createMockEditorRef(mockEditor);
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// create a selection in the text node that has identical start and end locations, ie it is a cursor
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document.getSelection()?.setBaseAndExtent(commandTextNode, 3, commandTextNode, 3);
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// process the change and check the suggestion that is set looks as we expect it to
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processSelectionChange(mockEditorRef, mockSetSuggestion);
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expect(mockSetSuggestion).toHaveBeenCalledWith(null);
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});
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});
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describe("findSuggestionInText", () => {
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const command = "/someCommand";
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const userMention = "@userMention";
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const roomMention = "#roomMention";
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const mentionTestCases = [userMention, roomMention];
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const allTestCases = [command, userMention, roomMention];
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it("returns null if content does not contain any mention or command characters", () => {
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expect(findSuggestionInText("hello", 1, true)).toBeNull();
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});
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it("returns null if content contains a command but is not the first text node", () => {
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expect(findSuggestionInText(command, 1, false)).toBeNull();
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});
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it("returns null if the offset is outside the content length", () => {
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expect(findSuggestionInText("hi", 30, true)).toBeNull();
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expect(findSuggestionInText("hi", -10, true)).toBeNull();
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});
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it.each(allTestCases)("returns an object when the whole input is special case: %s", (text) => {
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const expected = {
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mappedSuggestion: getMappedSuggestion(text),
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startOffset: 0,
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endOffset: text.length,
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};
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// test for cursor immediately before and after special character, before end, at end
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expect(findSuggestionInText(text, 0, true)).toEqual(expected);
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expect(findSuggestionInText(text, 1, true)).toEqual(expected);
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expect(findSuggestionInText(text, text.length - 2, true)).toEqual(expected);
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expect(findSuggestionInText(text, text.length, true)).toEqual(expected);
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});
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it("returns null when a command is followed by other text", () => {
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const followingText = " followed by something";
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// check for cursor inside and outside the command
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expect(findSuggestionInText(command + followingText, command.length - 2, true)).toBeNull();
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expect(findSuggestionInText(command + followingText, command.length + 2, true)).toBeNull();
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});
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it.each(mentionTestCases)("returns an object when a %s is followed by other text", (mention) => {
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const followingText = " followed by something else";
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expect(findSuggestionInText(mention + followingText, mention.length - 2, true)).toEqual({
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mappedSuggestion: getMappedSuggestion(mention),
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startOffset: 0,
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endOffset: mention.length,
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});
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});
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it("returns null if there is a command surrounded by text", () => {
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const precedingText = "text before the command ";
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const followingText = " text after the command";
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expect(
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findSuggestionInText(precedingText + command + followingText, precedingText.length + 4, true),
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).toBeNull();
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});
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it.each(mentionTestCases)("returns an object if %s is surrounded by text", (mention) => {
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const precedingText = "I want to mention ";
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const followingText = " in my message";
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const textInput = precedingText + mention + followingText;
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const expected = {
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mappedSuggestion: getMappedSuggestion(mention),
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startOffset: precedingText.length,
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endOffset: precedingText.length + mention.length,
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};
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// when the cursor is immediately before the special character
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expect(findSuggestionInText(textInput, precedingText.length, true)).toEqual(expected);
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// when the cursor is inside the mention
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expect(findSuggestionInText(textInput, precedingText.length + 3, true)).toEqual(expected);
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// when the cursor is right at the end of the mention
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expect(findSuggestionInText(textInput, precedingText.length + mention.length, true)).toEqual(expected);
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});
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it("returns null for text content with an email address", () => {
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const emailInput = "send to user@test.com";
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expect(findSuggestionInText(emailInput, 15, true)).toBeNull();
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});
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it("returns null for double slashed command", () => {
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const doubleSlashCommand = "//not a command";
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expect(findSuggestionInText(doubleSlashCommand, 4, true)).toBeNull();
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});
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it("returns null for slash separated text", () => {
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const slashSeparatedInput = "please to this/that/the other";
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expect(findSuggestionInText(slashSeparatedInput, 21, true)).toBeNull();
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});
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it("returns an object for a mention that contains punctuation", () => {
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const mentionWithPunctuation = "@userX14#5a_-";
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const precedingText = "mention ";
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const mentionInput = precedingText + mentionWithPunctuation;
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expect(findSuggestionInText(mentionInput, 12, true)).toEqual({
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mappedSuggestion: getMappedSuggestion(mentionWithPunctuation),
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startOffset: precedingText.length,
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endOffset: precedingText.length + mentionWithPunctuation.length,
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});
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});
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it("returns null when user inputs any whitespace after the special character", () => {
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const mentionWithSpaceAfter = "@ somebody";
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expect(findSuggestionInText(mentionWithSpaceAfter, 2, true)).toBeNull();
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});
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it("returns an object for an emoji suggestion", () => {
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const emoiticon = ":)";
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const precedingText = "hello ";
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const mentionInput = precedingText + emoiticon;
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expect(findSuggestionInText(mentionInput, precedingText.length, true, true)).toEqual({
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mappedSuggestion: getMappedSuggestion(emoiticon, true),
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startOffset: precedingText.length,
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endOffset: precedingText.length + emoiticon.length,
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});
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});
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});
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describe("getMappedSuggestion", () => {
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it("returns null when the first character is not / # @", () => {
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expect(getMappedSuggestion("Zzz")).toBe(null);
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});
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it("returns the expected mapped suggestion when first character is # or @", () => {
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expect(getMappedSuggestion("@user-mention")).toEqual({
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type: "mention",
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keyChar: "@",
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text: "user-mention",
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});
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expect(getMappedSuggestion("#room-mention")).toEqual({
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type: "mention",
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keyChar: "#",
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text: "room-mention",
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});
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});
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it("returns the expected mapped suggestion when first character is /", () => {
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expect(getMappedSuggestion("/command")).toEqual({
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type: "command",
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keyChar: "/",
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text: "command",
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});
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});
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it("returns the expected mapped suggestion when the text is a plain text emoiticon", () => {
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expect(getMappedSuggestion(":)", true)).toEqual({
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type: "custom",
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keyChar: "",
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text: "🙂",
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});
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});
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});
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