Allow for set contexts

src/context.js

@@ -2,6 +2,7 @@ import { debug, log, error } from "./shared.js";
 
 const SAVE_KEY = "birbSaveData";
 const ROOT_PATH = "";
+const SET_CONTEXT = "__CONTEXT__"
 
 /**
  * @typedef {import('./application.js').BirbSaveData} BirbSaveData
@@ -188,7 +189,7 @@ class BrowserExtensionContext extends Context {
 	 */
 	isContextActive() {
 		// @ts-expect-error
-		return typeof chrome !== "undefined";
+		return typeof chrome !== "undefined" && typeof chrome.storage !== "undefined" && typeof chrome.storage.sync !== "undefined";
 	}
 
 	/**
@@ -232,6 +233,7 @@ class BrowserExtensionContext extends Context {
 }
 
 export class ObsidianContext extends Context {
+
 	/**
 	 * @override
 	 * @returns {boolean}
@@ -319,15 +321,29 @@ export class ObsidianContext extends Context {
 	}
 }
 
-const CONTEXTS = [
+const contextProcessingOrder = [
 	new UserScriptContext(),
 	new ObsidianContext(),
 	new BrowserExtensionContext(),
 	new LocalContext()
 ];
 
+const CONTEXTS_BY_KEY = {
+	"local": LocalContext,
+	"userscript": UserScriptContext,
+	"browser-extension": BrowserExtensionContext,
+	"obsidian": ObsidianContext
+};
+
+/**
+ * Determines and returns the current context
+ * @returns {Context}
+ */
 export function getContext() {
-	for (const context of CONTEXTS) {
+	if (CONTEXTS_BY_KEY[SET_CONTEXT]) {
+		return new CONTEXTS_BY_KEY[SET_CONTEXT]();
+	}
+	for (const context of contextProcessingOrder) {
 		if (context.isContextActive()) {
 			return context;
 		}