feat(in-app-help): contextual help button for geo notes

src/public/app/widgets/floating_buttons/help_button.ts

@@ -0,0 +1,62 @@
+import appContext from "../../components/app_context.js";
+import type { NoteType } from "../../entities/fnote.js";
+import { t } from "../../services/i18n.js";
+import NoteContextAwareWidget from "../note_context_aware_widget.js";
+
+const TPL = `
+<button class="open-contextual-help-button" title="${t("help-button.title")}">
+    <span class="bx bx-help-circle"></span>
+</button>
+`;
+
+const byNoteType: Record<NoteType, string | null> = {
+    book: null,
+    canvas: null,
+    code: null,
+    contentWidget: null,
+    doc: null,
+    file: null,
+    geoMap: "foPEtsL51pD2",
+    image: null,
+    launcher: null,
+    mermaid: null,
+    mindMap: null,
+    noteMap: null,
+    relationMap: null,
+    render: null,
+    search: null,
+    text: null,
+    webView: null
+};
+
+export default class ContextualHelpButton extends NoteContextAwareWidget {
+
+    private helpNoteIdToOpen?: string | null;
+
+    isEnabled() {
+        this.helpNoteIdToOpen = null;
+
+        if (!super.isEnabled()) {
+            return false;
+        }
+
+        if (this.note && byNoteType[this.note.type]) {
+            this.helpNoteIdToOpen = byNoteType[this.note.type];
+        }
+
+        return !!this.helpNoteIdToOpen;
+    }
+
+    doRender() {
+        this.$widget = $(TPL);
+        this.$widget.on("click", () => {
+            const subContexts = appContext.tabManager.getActiveContext().getSubContexts();
+            const { ntxId } = subContexts[subContexts.length - 1];
+            this.triggerCommand("openNewNoteSplit", {
+                ntxId,
+                notePath: `_help_${this.helpNoteIdToOpen}`
+            })
+        });
+    }
+
+}