HistoryStore initial draft

Signed-off-by: Alex Andreev <alex.andreev.email@gmail.com>

src/common/history-store.ts

@@ -0,0 +1,88 @@
+/**
+ * Copyright (c) 2021 OpenLens Authors
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+import { action, makeObservable, observable, reaction } from "mobx";
+import { navigation } from "../renderer/navigation";
+import { BaseStore } from "./base-store";
+import { toJS } from "./utils";
+
+type HistoryModel = {
+  activeStep: number
+};
+
+export class HistoryStore extends BaseStore<HistoryModel> {
+  @observable activeStep = 0;
+
+  constructor() {
+    super({
+      configName: "lens-history-store",
+    });
+    makeObservable(this);
+
+    reaction(() => navigation.location, () => {
+      console.log(
+        `The current URL is ${navigation.location.pathname}${navigation.location.search}${navigation.location.hash}`
+      );
+      console.log(`The last navigation action was ${navigation.action}`);
+
+      if (!this.backOrForwardChange()) {
+        this.activeStep++;
+      }
+    });
+  }
+
+  @action
+  goBack() {
+    this.activeStep--;
+    navigation.goBack();
+  }
+
+  @action
+  goForward() {
+    this.activeStep++;
+    navigation.goForward();
+  }
+
+  isPreviousExist() {
+    return this.activeStep > 0;
+  }
+
+  isForwardExist() {
+    return this.activeStep < navigation.length - 1;
+  }
+
+  backOrForwardChange() {
+    return navigation.action == "POP";
+  }
+
+  @action
+  protected fromStore(data: Partial<HistoryModel> = {}) {
+    this.activeStep = data.activeStep || 0;
+  }
+
+  toJSON(): HistoryModel {
+    const model: HistoryModel = {
+      activeStep: this.activeStep
+    };
+
+    return toJS(model);
+  }
+}

src/renderer/bootstrap.tsx

@@ -51,6 +51,7 @@ import { ThemeStore } from "./theme.store";
 import { SentryInit } from "../common/sentry";
 import { TerminalStore } from "./components/dock/terminal.store";
 import cloudsMidnight from "./monaco-themes/Clouds Midnight.json";
+import { HistoryStore } from "../common/history-store";
 
 configurePackages();
 
@@ -102,6 +103,7 @@ export async function bootstrap(App: AppComponent) {
   // HotbarStore depends on: ClusterStore
   HotbarStore.createInstance();
   ExtensionsStore.createInstance();
+  HistoryStore.createInstance();
   FilesystemProvisionerStore.createInstance();
 
   // define Monaco Editor themes