feat: implement document actions for managing artboards, zoom, and history; update UI components to utilize new actions

app/document-actions.ts

@@ -0,0 +1,58 @@
+import { commandIds } from "@commands/ids";
+import type { ArtboardId } from "@core/id";
+import type { AppStore } from "@editor/store";
+import { downloadArtboardPng } from "@operations/export/downloadArtboard";
+import type { GenerationWorkflow } from "@operations/generation/workflow";
+
+export type DocumentActions = ReturnType<typeof createDocumentActions>;
+
+export function createDocumentActions(store: AppStore, generation: GenerationWorkflow) {
+  return {
+    openGenerate() {
+      store.dispatch(commandIds.workspaceSetPanel, { panel: "generate" });
+    },
+
+    generate() {
+      return generation.generate();
+    },
+
+    exportArtboard(artboardId?: ArtboardId) {
+      const state = store.getState();
+      const resolvedId = artboardId ?? state.editor.selection.artboardId;
+      const artboard = resolvedId
+        ? state.document.artboards.find((candidate) => candidate.id === resolvedId)
+        : state.document.artboards[0];
+      if (!artboard) return Promise.resolve();
+      return downloadArtboardPng(artboard, state.document.assets);
+    },
+
+    fitArtboard(artboardId?: ArtboardId) {
+      store.dispatch(commandIds.viewportFitArtboard, artboardId ? { artboardId } : undefined);
+    },
+
+    zoomBy(factor: number) {
+      const zoom = store.getState().editor.viewport.zoom;
+      store.dispatch(commandIds.viewportSetZoom, { zoom: zoom * factor });
+    },
+
+    zoomTo(zoom: number) {
+      store.dispatch(commandIds.viewportSetZoom, { zoom });
+    },
+
+    undo() {
+      store.dispatch(commandIds.historyUndo, undefined);
+    },
+
+    canUndo() {
+      return store.getState().history.past.length > 0;
+    },
+
+    redo() {
+      store.dispatch(commandIds.historyRedo, undefined);
+    },
+
+    canRedo() {
+      return store.getState().history.future.length > 0;
+    },
+  };
+}