Store refactor: use non-global stores in components (#9293)

* Add Stores and StoresContext and use it in MatrixChat and RoomView

Added a new kind of class:
- Add God object `Stores` which will hold refs to all known stores and the `MatrixClient`. This object is NOT a singleton.
- Add `StoresContext` to hold onto a ref of `Stores` for use inside components.

`StoresContext` is created via:
- Create `Stores` in `MatrixChat`, assigning the `MatrixClient` when we have one set. Currently sets the RVS to `RoomViewStore.instance`.
- Wrap `MatrixChat`s `render()` function in a `StoresContext.Provider` so it can be used anywhere.

`StoresContext` is currently only used in `RoomView` via the following changes:
- Remove the HOC, which redundantly set `mxClient` as a prop. We don't need this as `RoomView` was using the client from `this.context`.
- Change the type of context accepted from `MatrixClientContext` to `StoresContext`.
- Modify alllll the places where `this.context` is used to interact with the client and suffix `.client`.
- Modify places where we use `RoomViewStore.instance` and replace them with `this.context.roomViewStore`.

This makes `RoomView` use a non-global instance of RVS.

* Linting

* SDKContext and make client an optional constructor arg

* Move SDKContext to /src/contexts

* Inject all RVS deps

* Linting

* Remove reset calls; deep copy the INITIAL_STATE to avoid test pollution

* DI singletons used in RoomView; DI them in RoomView-test too

* Initial RoomViewStore.instance after all files are imported to avoid cyclical deps

* Lazily init stores to allow for circular dependencies

Rather than stores accepting a list of other stores in their constructors,
which doesn't work when A needs B and B needs A, make new-style stores simply
accept Stores. When a store needs another store, they access it via `Stores`
which then lazily constructs that store if it needs it. This breaks the
circular dependency at constructor time, without needing to introduce
wiring diagrams or any complex DI framework.

* Delete RoomViewStore.instance

Replaced with Stores.instance.roomViewStore

* Linting

* Move OverridableStores to test/TestStores

* Rejig how eager stores get made; don't automatically do it else tests break

* Linting

* Linting and review comments

* Fix new code to use Stores.instance

* s/Stores/SdkContextClass/g

* Update docs

* Remove unused imports

* Update src/stores/RoomViewStore.tsx

Co-authored-by: Michael Telatynski <7t3chguy@gmail.com>

* Remove empty c'tor to make sonar happy

Co-authored-by: Michael Telatynski <7t3chguy@gmail.com>
This commit is contained in:
kegsay 2022-10-19 13:07:03 +01:00 committed by GitHub
parent 84f2974b57
commit e946674df3
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36 changed files with 467 additions and 275 deletions

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@ -34,7 +34,6 @@ import { RoomNotificationStateStore } from "../notifications/RoomNotificationSta
import { DefaultTagID } from "../room-list/models";
import { EnhancedMap, mapDiff } from "../../utils/maps";
import { setDiff, setHasDiff } from "../../utils/sets";
import { RoomViewStore } from "../RoomViewStore";
import { Action } from "../../dispatcher/actions";
import { arrayHasDiff, arrayHasOrderChange } from "../../utils/arrays";
import { reorderLexicographically } from "../../utils/stringOrderField";
@ -64,6 +63,7 @@ import { ViewRoomPayload } from "../../dispatcher/payloads/ViewRoomPayload";
import { ViewHomePagePayload } from "../../dispatcher/payloads/ViewHomePagePayload";
import { SwitchSpacePayload } from "../../dispatcher/payloads/SwitchSpacePayload";
import { AfterLeaveRoomPayload } from "../../dispatcher/payloads/AfterLeaveRoomPayload";
import { SdkContextClass } from "../../contexts/SDKContext";
interface IState { }
@ -797,7 +797,7 @@ export class SpaceStoreClass extends AsyncStoreWithClient<IState> {
this.updateNotificationStates(notificationStatesToUpdate);
};
private switchSpaceIfNeeded = (roomId = RoomViewStore.instance.getRoomId()) => {
private switchSpaceIfNeeded = (roomId = SdkContextClass.instance.roomViewStore.getRoomId()) => {
if (!this.isRoomInSpace(this.activeSpace, roomId) && !this.matrixClient.getRoom(roomId)?.isSpaceRoom()) {
this.switchToRelatedSpace(roomId);
}
@ -848,7 +848,7 @@ export class SpaceStoreClass extends AsyncStoreWithClient<IState> {
}
// if the room currently being viewed was just joined then switch to its related space
if (newMembership === "join" && room.roomId === RoomViewStore.instance.getRoomId()) {
if (newMembership === "join" && room.roomId === SdkContextClass.instance.roomViewStore.getRoomId()) {
this.switchSpaceIfNeeded(room.roomId);
}
}
@ -875,7 +875,7 @@ export class SpaceStoreClass extends AsyncStoreWithClient<IState> {
this.emit(room.roomId);
}
if (membership === "join" && room.roomId === RoomViewStore.instance.getRoomId()) {
if (membership === "join" && room.roomId === SdkContextClass.instance.roomViewStore.getRoomId()) {
// if the user was looking at the space and then joined: select that space
this.setActiveSpace(room.roomId, false);
} else if (membership === "leave" && room.roomId === this.activeSpace) {