mirror of
https://github.com/element-hq/element-web
synced 2024-10-28 13:38:29 +03:00
571 lines
16 KiB
TypeScript
571 lines
16 KiB
TypeScript
/*
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Copyright 2019 New Vector Ltd
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Copyright 2019 The Matrix.org Foundation C.I.C.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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import {MatrixClient} from "matrix-js-sdk/src/client";
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import {RoomMember} from "matrix-js-sdk/src/models/room-member";
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import {Room} from "matrix-js-sdk/src/models/room";
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import AutocompleteWrapperModel, {
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GetAutocompleterComponent,
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UpdateCallback,
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UpdateQuery,
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} from "./autocomplete";
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import * as Avatar from "../Avatar";
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interface ISerializedPart {
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type: Type.Plain | Type.Newline | Type.Command | Type.PillCandidate;
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text: string;
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}
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interface ISerializedPillPart {
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type: Type.AtRoomPill | Type.RoomPill | Type.UserPill;
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text: string;
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resourceId: string;
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}
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export type SerializedPart = ISerializedPart | ISerializedPillPart;
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enum Type {
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Plain = "plain",
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Newline = "newline",
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Command = "command",
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UserPill = "user-pill",
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RoomPill = "room-pill",
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AtRoomPill = "at-room-pill",
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PillCandidate = "pill-candidate",
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}
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interface IBasePart {
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text: string;
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type: Type.Plain | Type.Newline;
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canEdit: boolean;
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createAutoComplete(updateCallback: UpdateCallback): void;
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serialize(): SerializedPart;
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remove(offset: number, len: number): string;
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split(offset: number): IBasePart;
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validateAndInsert(offset: number, str: string, inputType: string): boolean;
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appendUntilRejected(str: string, inputType: string): string;
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updateDOMNode(node: Node);
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canUpdateDOMNode(node: Node);
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toDOMNode(): Node;
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}
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interface IPillCandidatePart extends Omit<IBasePart, "type" | "createAutoComplete"> {
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type: Type.PillCandidate | Type.Command;
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createAutoComplete(updateCallback: UpdateCallback): AutocompleteWrapperModel;
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}
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interface IPillPart extends Omit<IBasePart, "type" | "resourceId"> {
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type: Type.AtRoomPill | Type.RoomPill | Type.UserPill;
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resourceId: string;
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}
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export type Part = IBasePart | IPillCandidatePart | IPillPart;
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abstract class BasePart {
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protected _text: string;
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constructor(text = "") {
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this._text = text;
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}
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acceptsInsertion(chr: string, offset: number, inputType: string) {
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return true;
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}
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acceptsRemoval(position: number, chr: string) {
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return true;
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}
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merge(part: Part) {
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return false;
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}
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split(offset: number) {
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const splitText = this.text.substr(offset);
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this._text = this.text.substr(0, offset);
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return new PlainPart(splitText);
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}
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// removes len chars, or returns the plain text this part should be replaced with
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// if the part would become invalid if it removed everything.
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remove(offset: number, len: number) {
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// validate
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const strWithRemoval = this.text.substr(0, offset) + this.text.substr(offset + len);
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for (let i = offset; i < (len + offset); ++i) {
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const chr = this.text.charAt(i);
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if (!this.acceptsRemoval(i, chr)) {
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return strWithRemoval;
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}
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}
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this._text = strWithRemoval;
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}
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// append str, returns the remaining string if a character was rejected.
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appendUntilRejected(str: string, inputType: string) {
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const offset = this.text.length;
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for (let i = 0; i < str.length; ++i) {
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const chr = str.charAt(i);
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if (!this.acceptsInsertion(chr, offset + i, inputType)) {
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this._text = this._text + str.substr(0, i);
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return str.substr(i);
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}
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}
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this._text = this._text + str;
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}
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// inserts str at offset if all the characters in str were accepted, otherwise don't do anything
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// return whether the str was accepted or not.
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validateAndInsert(offset: number, str: string, inputType: string) {
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for (let i = 0; i < str.length; ++i) {
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const chr = str.charAt(i);
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if (!this.acceptsInsertion(chr, offset + i, inputType)) {
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return false;
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}
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}
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const beforeInsert = this._text.substr(0, offset);
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const afterInsert = this._text.substr(offset);
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this._text = beforeInsert + str + afterInsert;
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return true;
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}
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createAutoComplete(updateCallback: UpdateCallback): void {}
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trim(len: number) {
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const remaining = this._text.substr(len);
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this._text = this._text.substr(0, len);
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return remaining;
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}
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get text() {
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return this._text;
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}
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abstract get type(): Type;
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get canEdit() {
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return true;
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}
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toString() {
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return `${this.type}(${this.text})`;
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}
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serialize(): SerializedPart {
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return {
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type: this.type as ISerializedPart["type"],
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text: this.text,
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};
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}
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abstract updateDOMNode(node: Node);
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abstract canUpdateDOMNode(node: Node);
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abstract toDOMNode(): Node;
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}
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abstract class PlainBasePart extends BasePart {
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acceptsInsertion(chr: string, offset: number, inputType: string) {
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if (chr === "\n") {
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return false;
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}
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// when not pasting or dropping text, reject characters that should start a pill candidate
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if (inputType !== "insertFromPaste" && inputType !== "insertFromDrop") {
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if (chr !== "@" && chr !== "#" && chr !== ":" && chr !== "+") {
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return true;
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}
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// only split if the previous character is a space
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return this._text[offset - 1] !== " ";
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}
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return true;
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}
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toDOMNode() {
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return document.createTextNode(this.text);
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}
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merge(part) {
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if (part.type === this.type) {
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this._text = this.text + part.text;
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return true;
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}
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return false;
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}
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updateDOMNode(node: Node) {
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if (node.textContent !== this.text) {
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node.textContent = this.text;
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}
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}
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canUpdateDOMNode(node: Node) {
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return node.nodeType === Node.TEXT_NODE;
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}
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}
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// exported for unit tests, should otherwise only be used through PartCreator
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export class PlainPart extends PlainBasePart implements IBasePart {
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get type(): IBasePart["type"] {
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return Type.Plain;
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}
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}
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abstract class PillPart extends BasePart implements IPillPart {
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constructor(public resourceId: string, label) {
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super(label);
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}
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acceptsInsertion(chr: string) {
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return chr !== " ";
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}
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acceptsRemoval(position: number, chr: string) {
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return position !== 0; //if you remove initial # or @, pill should become plain
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}
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toDOMNode() {
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const container = document.createElement("span");
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container.setAttribute("spellcheck", "false");
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container.className = this.className;
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container.appendChild(document.createTextNode(this.text));
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this.setAvatar(container);
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return container;
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}
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updateDOMNode(node: HTMLElement) {
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const textNode = node.childNodes[0];
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if (textNode.textContent !== this.text) {
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textNode.textContent = this.text;
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}
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if (node.className !== this.className) {
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node.className = this.className;
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}
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this.setAvatar(node);
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}
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canUpdateDOMNode(node: HTMLElement) {
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return node.nodeType === Node.ELEMENT_NODE &&
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node.nodeName === "SPAN" &&
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node.childNodes.length === 1 &&
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node.childNodes[0].nodeType === Node.TEXT_NODE;
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}
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// helper method for subclasses
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_setAvatarVars(node: HTMLElement, avatarUrl: string, initialLetter: string) {
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const avatarBackground = `url('${avatarUrl}')`;
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const avatarLetter = `'${initialLetter}'`;
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// check if the value is changing,
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// otherwise the avatars flicker on every keystroke while updating.
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if (node.style.getPropertyValue("--avatar-background") !== avatarBackground) {
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node.style.setProperty("--avatar-background", avatarBackground);
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}
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if (node.style.getPropertyValue("--avatar-letter") !== avatarLetter) {
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node.style.setProperty("--avatar-letter", avatarLetter);
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}
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}
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get canEdit() {
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return false;
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}
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abstract get type(): IPillPart["type"];
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abstract get className(): string;
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abstract setAvatar(node: HTMLElement): void;
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}
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class NewlinePart extends BasePart implements IBasePart {
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acceptsInsertion(chr: string, offset: number) {
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return offset === 0 && chr === "\n";
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}
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acceptsRemoval(position: number, chr: string) {
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return true;
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}
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toDOMNode() {
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return document.createElement("br");
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}
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merge() {
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return false;
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}
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updateDOMNode() {}
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canUpdateDOMNode(node: HTMLElement) {
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return node.tagName === "BR";
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}
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get type(): IBasePart["type"] {
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return Type.Newline;
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}
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// this makes the cursor skip this part when it is inserted
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// rather than trying to append to it, which is what we want.
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// As a newline can also be only one character, it makes sense
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// as it can only be one character long. This caused #9741.
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get canEdit() {
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return false;
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}
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}
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class RoomPillPart extends PillPart {
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constructor(displayAlias, private room: Room) {
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super(displayAlias, displayAlias);
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}
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setAvatar(node: HTMLElement) {
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let initialLetter = "";
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let avatarUrl = Avatar.avatarUrlForRoom(
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this.room,
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16 * window.devicePixelRatio,
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16 * window.devicePixelRatio,
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"crop");
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if (!avatarUrl) {
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initialLetter = Avatar.getInitialLetter(this.room ? this.room.name : this.resourceId);
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avatarUrl = Avatar.defaultAvatarUrlForString(this.room ? this.room.roomId : this.resourceId);
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}
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this._setAvatarVars(node, avatarUrl, initialLetter);
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}
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get type(): IPillPart["type"] {
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return Type.RoomPill;
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}
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get className() {
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return "mx_RoomPill mx_Pill";
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}
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}
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class AtRoomPillPart extends RoomPillPart {
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get type(): IPillPart["type"] {
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return Type.AtRoomPill;
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}
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}
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class UserPillPart extends PillPart {
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constructor(userId, displayName, private member: RoomMember) {
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super(userId, displayName);
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}
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setAvatar(node: HTMLElement) {
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if (!this.member) {
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return;
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}
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const name = this.member.name || this.member.userId;
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const defaultAvatarUrl = Avatar.defaultAvatarUrlForString(this.member.userId);
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const avatarUrl = Avatar.avatarUrlForMember(
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this.member,
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16 * window.devicePixelRatio,
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16 * window.devicePixelRatio,
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"crop");
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let initialLetter = "";
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if (avatarUrl === defaultAvatarUrl) {
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initialLetter = Avatar.getInitialLetter(name);
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}
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this._setAvatarVars(node, avatarUrl, initialLetter);
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}
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get type(): IPillPart["type"] {
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return Type.UserPill;
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}
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get className() {
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return "mx_UserPill mx_Pill";
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}
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serialize(): ISerializedPillPart {
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return {
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type: this.type,
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text: this.text,
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resourceId: this.resourceId,
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};
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}
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}
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class PillCandidatePart extends PlainBasePart implements IPillCandidatePart {
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constructor(text: string, private autoCompleteCreator: IAutocompleteCreator) {
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super(text);
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}
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createAutoComplete(updateCallback: UpdateCallback): AutocompleteWrapperModel {
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return this.autoCompleteCreator.create(updateCallback);
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}
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acceptsInsertion(chr: string, offset: number, inputType: string) {
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if (offset === 0) {
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return true;
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} else {
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return super.acceptsInsertion(chr, offset, inputType);
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}
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}
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merge() {
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return false;
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}
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acceptsRemoval(position: number, chr: string) {
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return true;
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}
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get type(): IPillCandidatePart["type"] {
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return Type.PillCandidate;
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}
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}
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export function getAutoCompleteCreator(getAutocompleterComponent: GetAutocompleterComponent, updateQuery: UpdateQuery) {
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return (partCreator: PartCreator) => {
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return (updateCallback: UpdateCallback) => {
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return new AutocompleteWrapperModel(
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updateCallback,
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getAutocompleterComponent,
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updateQuery,
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partCreator,
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);
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};
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};
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}
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type AutoCompleteCreator = ReturnType<typeof getAutoCompleteCreator>;
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interface IAutocompleteCreator {
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create(updateCallback: UpdateCallback): AutocompleteWrapperModel;
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}
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export class PartCreator {
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protected readonly autoCompleteCreator: IAutocompleteCreator;
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constructor(private room: Room, private client: MatrixClient, autoCompleteCreator: AutoCompleteCreator = null) {
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// pre-create the creator as an object even without callback so it can already be passed
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// to PillCandidatePart (e.g. while deserializing) and set later on
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this.autoCompleteCreator = {create: autoCompleteCreator && autoCompleteCreator(this)};
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}
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setAutoCompleteCreator(autoCompleteCreator: AutoCompleteCreator) {
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this.autoCompleteCreator.create = autoCompleteCreator(this);
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}
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createPartForInput(input: string, partIndex: number, inputType?: string): Part {
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switch (input[0]) {
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case "#":
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case "@":
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case ":":
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case "+":
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return this.pillCandidate("");
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case "\n":
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return new NewlinePart();
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default:
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return new PlainPart();
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}
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}
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createDefaultPart(text: string) {
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return this.plain(text);
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}
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deserializePart(part: SerializedPart): Part {
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switch (part.type) {
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case Type.Plain:
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return this.plain(part.text);
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case Type.Newline:
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return this.newline();
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case Type.AtRoomPill:
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return this.atRoomPill(part.text);
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case Type.PillCandidate:
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return this.pillCandidate(part.text);
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case Type.RoomPill:
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return this.roomPill(part.text);
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case Type.UserPill:
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return this.userPill(part.text, part.resourceId);
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}
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}
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plain(text: string) {
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return new PlainPart(text);
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}
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newline() {
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return new NewlinePart("\n");
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}
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pillCandidate(text: string) {
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return new PillCandidatePart(text, this.autoCompleteCreator);
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}
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roomPill(alias: string, roomId?: string) {
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let room;
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if (roomId || alias[0] !== "#") {
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room = this.client.getRoom(roomId || alias);
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} else {
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room = this.client.getRooms().find((r) => {
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return r.getCanonicalAlias() === alias ||
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r.getAltAliases().includes(alias);
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});
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}
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return new RoomPillPart(alias, room);
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}
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atRoomPill(text: string) {
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return new AtRoomPillPart(text, this.room);
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}
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userPill(displayName: string, userId: string) {
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const member = this.room.getMember(userId);
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return new UserPillPart(userId, displayName, member);
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}
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createMentionParts(partIndex: number, displayName: string, userId: string) {
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const pill = this.userPill(displayName, userId);
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const postfix = this.plain(partIndex === 0 ? ": " : " ");
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return [pill, postfix];
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}
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}
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// part creator that support auto complete for /commands,
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// used in SendMessageComposer
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export class CommandPartCreator extends PartCreator {
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createPartForInput(text: string, partIndex: number) {
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// at beginning and starts with /? create
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if (partIndex === 0 && text[0] === "/") {
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// text will be inserted by model, so pass empty string
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return this.command("");
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} else {
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return super.createPartForInput(text, partIndex);
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}
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}
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command(text: string) {
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return new CommandPart(text, this.autoCompleteCreator);
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}
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deserializePart(part: Part): Part {
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if (part.type === "command") {
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return this.command(part.text);
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} else {
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return super.deserializePart(part);
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}
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}
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|
}
|
|
|
|
class CommandPart extends PillCandidatePart {
|
|
get type(): IPillCandidatePart["type"] {
|
|
return Type.Command;
|
|
}
|
|
}
|