chore(release): 4.6.0 [CI SKIP]

CHANGELOG.md

@@ -1,3 +1,25 @@
+# [4.6.0](https://github.com/SteamDeckHomebrew/decky-frontend-lib/compare/v4.5.0...v4.6.0) (2024-07-26)
+
+
+### Features
+
+* **classMapper:** add findClassByName back ([2b8d2ae](https://github.com/SteamDeckHomebrew/decky-frontend-lib/commit/2b8d2ae4dbd9a0c4a59a43be0101a0a8fe1c518f))
+
+# [4.5.0](https://github.com/SteamDeckHomebrew/decky-frontend-lib/compare/v4.4.0...v4.5.0) (2024-07-24)
+
+
+### Features
+
+* **classMapper:** add classModuleMap, make findClass require ID ([a370c1f](https://github.com/SteamDeckHomebrew/decky-frontend-lib/commit/a370c1f7d3dca0db56a346c98c28ed9681a415e0))
+* **webpack:** refactor to prepare for classMapper changes ([d83bada](https://github.com/SteamDeckHomebrew/decky-frontend-lib/commit/d83bada4af2d16c750955de9a52f94a0080a2c14))
+
+# [4.4.0](https://github.com/SteamDeckHomebrew/decky-frontend-lib/compare/v4.3.1...v4.4.0) (2024-07-18)
+
+
+### Features
+
+* **utils/react:** add injectFCTrampoline ([44fdf9e](https://github.com/SteamDeckHomebrew/decky-frontend-lib/commit/44fdf9ed3b9a676a88b0ddc6a1c2c89d46ff7651))
+
 ## [4.3.1](https://github.com/SteamDeckHomebrew/decky-frontend-lib/compare/v4.3.0...v4.3.1) (2024-07-17)
 
 

package.json

@@ -1,6 +1,6 @@
 {
   "name": "@decky/ui",
-  "version": "4.3.1",
+  "version": "4.6.0",
   "description": "A library for interacting with the Steam frontend in Decky plugins and elsewhere.",
   "main": "dist/index.js",
   "types": "dist/index.d.ts",

src/class-mapper.ts

@@ -1,10 +1,10 @@
-import { Module, findAllModules } from './webpack';
+import { Module, ModuleID, createModuleMapping } from './webpack';
 
 export interface ClassModule {
   [name: string]: string;
 }
 
-export const classMap: ClassModule[] = findAllModules((m: Module) => {
+export const classModuleMap: Map<ModuleID, ClassModule> = createModuleMapping((m: Module) => {
   if (typeof m == 'object' && !m.__esModule) {
     const keys = Object.keys(m);
     // special case some libraries
@@ -17,8 +17,14 @@ export const classMap: ClassModule[] = findAllModules((m: Module) => {
   return false;
 });
 
-export function findClass(name: string): string | void {
-  return classMap.find((m) => m?.[name])?.[name];
+export const classMap = [...classModuleMap.values()];
+
+export function findClass(id: string, name: string): string | void {
+  return classModuleMap.get(id)?.[name];
+}
+
+export function findClassByName(name: string): string | void {
+  return classMap.find((m) => m[name])?.[name];
 }
 
 export function findClassModule(filter: (module: any) => boolean): ClassModule | void {
@@ -26,7 +32,7 @@ export function findClassModule(filter: (module: any) => boolean): ClassModule |
 }
 
 export function unminifyClass(minifiedClass: string): string | void {
-  for (let m of classMap) {
+  for (let m of classModuleMap.values()) {
     for (let className of Object.keys(m)) {
       if (m[className] == minifiedClass) return className;
     }

src/custom-hooks/useQuickAccessVisible.ts

@@ -11,12 +11,14 @@ function getQuickAccessWindow(): Window | null {
 
 /**
  * Returns state indicating the visibility of quick access menu.
+ * 
+ * @deprecated moved to @decky/api
  *
  * @returns `true` if quick access menu is visible and `false` otherwise.
  *
  * @example
  * import { FC, useEffect } from "react";
- * import { useQuickAccessVisible } from "decky-frontend-lib";
+ * import { useQuickAccessVisible } from "@decky/ui";
  *
  * export const PluginPanelView: FC<{}> = ({ }) => {
  *   const isVisible = useQuickAccessVisible();

src/utils/index.ts

@@ -1,7 +1,8 @@
 export * from './patcher';
-export * from './react';
-export * from './react-patching';
 export * from './static-classes';
+export * from './react/react';
+export * from './react/fc';
+export * from './react/treepatcher';
 
 declare global {
   var FocusNavController: any;

src/utils/react/fc.ts

@@ -0,0 +1,109 @@
+// Utilities for patching function components
+import { createElement, type FC } from 'react';
+import { applyHookStubs, removeHookStubs } from './react';
+import Logger from '../../logger';
+
+export interface FCTrampoline {
+    component: FC
+}
+
+let loggingEnabled = false;
+
+export function setFCTrampolineLoggingEnabled(value: boolean = true) { loggingEnabled = value };
+
+let logger = new Logger('FCTrampoline');
+
+/**
+ * Directly hooks a function component from its reference, redirecting it to a user-patchable wrapper in its returned object.
+ * This only works if the original component when called directly returns either nothing, null, or another child element.
+ * 
+ * This works by tricking react into thinking it's a class component by cleverly working around its class component checks,
+ * keeping the unmodified function component intact as a mostly working constructor (as it is impossible to direcly modify a function),
+ * stubbing out hooks to prevent errors by detecting setter/getter triggers that occur direcly before/after the class component is instantiated by react,
+ * and creating a fake class component render method to trampoline out into your own handler.
+ * 
+ * Due to the nature of this method of hooking a component, please only use this where it is *absolutely necessary.*
+ * Incorrect hook stubs can cause major instability, be careful when writing them. Refer to fakeRenderComponent for the hook stub implementation.
+ * Make sure your hook stubs can handle all the cases they could possibly need to within the component you are injecting into.
+ * You do not need to worry about its children, as they are never called due to the first instance never actually rendering.
+ */
+export function injectFCTrampoline(component: FC, customHooks?: any): FCTrampoline {
+    // It needs to be wrapped so React doesn't infinitely call the fake class render method.
+    const newComponent = function (this: any, ...args: any) {
+        loggingEnabled && logger.debug("new component rendering with props", args);
+        return component.apply(this, args);
+    }
+    const userComponent = { component: newComponent };
+    // Create a fake class component render method
+    component.prototype.render = function (...args: any[]) {
+        loggingEnabled && logger.debug("rendering trampoline", args, this);
+        // Pass through rendering via creating the component as a child so React can use function component logic instead of class component logic (setting up the hooks)
+        return createElement(userComponent.component, this.props, this.props.children);
+    };
+    component.prototype.isReactComponent = true;
+    let stubsApplied = false;
+    let oldCreateElement = window.SP_REACT.createElement;
+
+    const applyStubsIfNeeded = () => {
+        if (!stubsApplied) {
+            loggingEnabled && logger.debug("applied stubs");
+            stubsApplied = true;
+            applyHookStubs(customHooks)
+            // we have to redirect this to return an object with component's prototype as a constructor returning a value overrides its prototype
+            window.SP_REACT.createElement = () => {
+                loggingEnabled && logger.debug("createElement hook called");
+                return Object.create(component.prototype);
+            };
+        }
+    }
+
+    const removeStubsIfNeeded = () => {
+        if (stubsApplied) {
+            loggingEnabled && logger.debug("removed stubs");
+            stubsApplied = false;
+            removeHookStubs();
+            window.SP_REACT.createElement = oldCreateElement;
+        }
+    }
+
+    // Accessed two times, once directly before class instantiation, and again in some extra logic we don't need to worry about that we hanlde below just in case.
+    Object.defineProperty(component, "contextType", {
+        configurable: true,
+        get: function () {
+            loggingEnabled && logger.debug("get contexttype", this, stubsApplied);
+            applyStubsIfNeeded();
+            return this._contextType;
+        },
+        set: function (value) {
+            this._contextType = value;
+        }
+    });
+
+    // Undoes the second contextType access we can't detect shortly before render before it's able to cause any damage
+    Object.defineProperty(component, "getDerivedStateFromProps", {
+        configurable: true,
+        get: function () {
+            loggingEnabled && logger.debug("get getDerivedStateFromProps", this, stubsApplied);
+            removeStubsIfNeeded();
+            return this._getDerivedStateFromProps;
+        },
+        set: function (value) {
+            this._getDerivedStateFromProps = value;
+        }
+    });
+
+    // Set directly after class is instantiated
+    Object.defineProperty(component.prototype, "updater", {
+        configurable: true,
+        get: function () {
+            return this._updater;
+        },
+        set: function (value) {
+            loggingEnabled && logger.debug("set updater", this, value, stubsApplied);
+            removeStubsIfNeeded();
+            return this._updater = value;
+        }
+    });
+
+    return userComponent;
+}

src/utils/react/react.ts

@@ -30,13 +30,15 @@ export function createPropListRegex(propList: string[], fromStart: boolean = tru
   return new RegExp(regexString);
 }
 
-export function fakeRenderComponent(fun: Function, customHooks: any = {}): any {
+let oldHooks = {};
+
+export function applyHookStubs(customHooks: any = {}): any {
   const hooks = (window.SP_REACT as any).__SECRET_INTERNALS_DO_NOT_USE_OR_YOU_WILL_BE_FIRED.ReactCurrentDispatcher
     .current;
 
   // TODO: add more hooks
 
-  let oldHooks = {
+  oldHooks = {
     useContext: hooks.useContext,
     useCallback: hooks.useCallback,
     useLayoutEffect: hooks.useLayoutEffect,
@@ -60,9 +62,22 @@ export function fakeRenderComponent(fun: Function, customHooks: any = {}): any {
 
   Object.assign(hooks, customHooks);
 
-  const res = fun(hooks);
+  return hooks;
+}
 
+export function removeHookStubs() {
+  const hooks = (window.SP_REACT as any).__SECRET_INTERNALS_DO_NOT_USE_OR_YOU_WILL_BE_FIRED.ReactCurrentDispatcher
+    .current;
   Object.assign(hooks, oldHooks);
+  oldHooks = {};
+}
+
+export function fakeRenderComponent(fun: Function, customHooks?: any): any {
+  const hooks = applyHookStubs(customHooks);
+
+  const res = fun(hooks); // TODO why'd we do this?
+
+  removeHookStubs();
 
   return res;
 }

src/utils/react/treepatcher.ts

@@ -1,5 +1,5 @@
-import Logger from '../logger';
-import { GenericPatchHandler, afterPatch } from './patcher';
+import Logger from '../../logger';
+import { GenericPatchHandler, afterPatch } from '../patcher';
 import { wrapReactClass, wrapReactType } from './react';
 
 // TODO max size limit? could implement as a class extending map perhaps

src/webpack.ts

@@ -9,20 +9,21 @@ declare global {
 const logger = new Logger('Webpack');
 
 // In most case an object with getters for each property. Look for the first call to r.d in the module, usually near or at the top.
+export type ModuleID = string; // number string
 export type Module = any;
 export type Export = any;
 type FilterFn = (module: any) => boolean;
 type ExportFilterFn = (moduleExport: any, exportName?: any) => boolean;
 type FindFn = (module: any) => any;
 
-export let modules: any = [];
+export let modules = new Map<ModuleID, Module>();
 
 function initModuleCache() {
   const startTime = performance.now();
   logger.group('Webpack Module Init');
   // Webpack 5, currently on beta
   // Generate a fake module ID
-  const id = Math.random(); // really should be an int and not a float but who cares
+  const id = Symbol("@decky/ui");
   let webpackRequire!: ((id: any) => Module) & { m: object };
   // Insert our module in a new chunk.
   // The module will then be called with webpack's internal require function as its first argument
@@ -39,14 +40,14 @@ function initModuleCache() {
   );
 
   // Loop over every module ID
-  for (let i of Object.keys(webpackRequire.m)) {
+  for (let id of Object.keys(webpackRequire.m)) {
     try {
-      const module = webpackRequire(i);
+      const module = webpackRequire(id);
       if (module) {
-        modules.push(module);
+        modules.set(id, module);
       }
     } catch (e) {
-      logger.debug('Ignoring require error for module', i, e);
+      logger.debug('Ignoring require error for module', id, e);
     }
   }
 
@@ -56,7 +57,7 @@ function initModuleCache() {
 initModuleCache();
 
 export const findModule = (filter: FilterFn) => {
-  for (const m of modules) {
+  for (const m of modules.values()) {
     if (m.default && filter(m.default)) return m.default;
     if (filter(m)) return m;
   }
@@ -65,8 +66,8 @@ export const findModule = (filter: FilterFn) => {
 export const findModuleDetailsByExport = (
   filter: ExportFilterFn,
   minExports?: number,
-): [module: Module | undefined, moduleExport: any, exportName: any] => {
-  for (const m of modules) {
+): [module: Module | undefined, moduleExport: any, exportName: any, moduleID: string | undefined] => {
+  for (const [id, m] of modules) {
     if (!m) continue;
     for (const mod of [m.default, m]) {
       if (typeof mod !== 'object') continue;
@@ -75,7 +76,7 @@ export const findModuleDetailsByExport = (
         if (mod?.[exportName]) {
           const filterRes = filter(mod[exportName], exportName);
           if (filterRes) {
-            return [mod, mod[exportName], exportName];
+            return [mod, mod[exportName], exportName, id];
           } else {
             continue;
           }
@@ -83,7 +84,7 @@ export const findModuleDetailsByExport = (
       }
     }
   }
-  return [undefined, undefined, undefined];
+  return [undefined, undefined, undefined, undefined];
 };
 
 export const findModuleByExport = (filter: ExportFilterFn, minExports?: number) => {
@@ -98,7 +99,7 @@ export const findModuleExport = (filter: ExportFilterFn, minExports?: number) =>
  * @deprecated use findModuleExport instead
  */
 export const findModuleChild = (filter: FindFn) => {
-  for (const m of modules) {
+  for (const m of modules.values()) {
     for (const mod of [m.default, m]) {
       const filterRes = filter(mod);
       if (filterRes) {
@@ -110,10 +111,13 @@ export const findModuleChild = (filter: FindFn) => {
   }
 };
 
+/**
+ * @deprecated use createModuleMapping instead
+ */
 export const findAllModules = (filter: FilterFn) => {
   const out = [];
 
-  for (const m of modules) {
+  for (const m of modules.values()) {
     if (m.default && filter(m.default)) out.push(m.default);
     if (filter(m)) out.push(m);
   }
@@ -121,7 +125,18 @@ export const findAllModules = (filter: FilterFn) => {
   return out;
 };
 
-export const CommonUIModule = modules.find((m: Module) => {
+export const createModuleMapping = (filter: FilterFn) => {
+  const mapping = new Map<ModuleID, Module>();
+
+  for (const [id, m] of modules) {
+    if (m.default && filter(m.default)) mapping.set(id, m.default);
+    if (filter(m)) mapping.set(id, m);
+  }
+
+  return mapping;
+};
+
+export const CommonUIModule = findModule((m: Module) => {
   if (typeof m !== 'object') return false;
   for (let prop in m) {
     if (m[prop]?.contextType?._currentValue && Object.keys(m).length > 60) return true;