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| Original file line number | Diff line number | Diff line change |
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| /* | ||
| Copyright 2016 Aviral Dasgupta | ||
| Copyright 2017, 2018 New Vector Ltd | ||
| Licensed under the Apache License, Version 2.0 (the "License"); | ||
| you may not use this file except in compliance with the License. | ||
| You may obtain a copy of the License at | ||
| http://www.apache.org/licenses/LICENSE-2.0 | ||
| Unless required by applicable law or agreed to in writing, software | ||
| distributed under the License is distributed on an "AS IS" BASIS, | ||
| WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| See the License for the specific language governing permissions and | ||
| limitations under the License. | ||
| */ | ||
|
|
||
| import { Room } from "matrix-js-sdk/src/matrix"; | ||
| import AutocompleteProvider, { ICommand } from "matrix-react-sdk/src/autocomplete/AutocompleteProvider"; | ||
| import EmojiProvider from "matrix-react-sdk/src/autocomplete/EmojiProvider"; | ||
| import NotifProvider from "matrix-react-sdk/src/autocomplete/NotifProvider"; | ||
| import RoomProvider from "matrix-react-sdk/src/autocomplete/RoomProvider"; | ||
| import SpaceProvider from "matrix-react-sdk/src/autocomplete/SpaceProvider"; | ||
| import UserProvider from "matrix-react-sdk/src/autocomplete/UserProvider"; | ||
| import { TimelineRenderingType } from "matrix-react-sdk/src/contexts/RoomContext"; | ||
| import { filterBoolean } from "matrix-react-sdk/src/utils/arrays"; | ||
| import { timeout } from "matrix-react-sdk/src/utils/promise"; | ||
| import { ReactElement } from "react"; | ||
|
|
||
| export interface ISelectionRange { | ||
| beginning?: boolean; // whether the selection is in the first block of the editor or not | ||
| start: number; // byte offset relative to the start anchor of the current editor selection. | ||
| end: number; // byte offset relative to the end anchor of the current editor selection. | ||
| } | ||
|
|
||
| export interface ICompletion { | ||
| type?: "at-room" | "command" | "community" | "room" | "user"; | ||
| completion: string; | ||
| completionId?: string; | ||
| component: ReactElement; | ||
| range: ISelectionRange; | ||
| command?: string; | ||
| suffix?: string; | ||
| // If provided, apply a LINK entity to the completion with the | ||
| // data = { url: href }. | ||
| href?: string; | ||
| } | ||
|
|
||
| const PROVIDERS = [UserProvider, RoomProvider, EmojiProvider, NotifProvider, SpaceProvider]; | ||
|
|
||
| // Providers will get rejected if they take longer than this. | ||
| const PROVIDER_COMPLETION_TIMEOUT = 3000; | ||
|
|
||
| export interface IProviderCompletions { | ||
| completions: ICompletion[]; | ||
| provider: AutocompleteProvider; | ||
| command: Partial<ICommand>; | ||
| } | ||
|
|
||
| export default class Autocompleter { | ||
| public room: Room; | ||
| public providers: AutocompleteProvider[]; | ||
|
|
||
| public constructor(room: Room, renderingType: TimelineRenderingType = TimelineRenderingType.Room) { | ||
| this.room = room; | ||
| this.providers = PROVIDERS.map((Prov) => { | ||
| return new Prov(room, renderingType); | ||
| }); | ||
| } | ||
|
|
||
| public destroy(): void { | ||
| this.providers.forEach((p) => { | ||
| p.destroy(); | ||
| }); | ||
| } | ||
|
|
||
| public async getCompletions( | ||
| query: string, | ||
| selection: ISelectionRange, | ||
| force = false, | ||
| limit = -1, | ||
| ): Promise<IProviderCompletions[]> { | ||
| /* Note: This intentionally waits for all providers to return, | ||
| otherwise, we run into a condition where new completions are displayed | ||
| while the user is interacting with the list, which makes it difficult | ||
| to predict whether an action will actually do what is intended | ||
| */ | ||
| // list of results from each provider, each being a list of completions or null if it times out | ||
| const completionsList: Array<ICompletion[] | null> = await Promise.all( | ||
| this.providers.map(async (provider): Promise<ICompletion[] | null> => { | ||
| return timeout( | ||
| provider.getCompletions(query, selection, force, limit), | ||
| null, | ||
| PROVIDER_COMPLETION_TIMEOUT, | ||
| ); | ||
| }), | ||
| ); | ||
|
|
||
| // map then filter to maintain the index for the map-operation, for this.providers to line up | ||
| return filterBoolean( | ||
| completionsList.map((completions, i) => { | ||
| if (!completions || !completions.length) return; | ||
|
|
||
| return { | ||
| completions, | ||
| provider: this.providers[i], | ||
|
|
||
| /* the currently matched "command" the completer tried to complete | ||
| * we pass this through so that Autocomplete can figure out when to | ||
| * re-show itself once hidden. | ||
| */ | ||
| command: this.providers[i].getCurrentCommand(query, selection, force), | ||
| }; | ||
| }), | ||
| ); | ||
| } | ||
| } |
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