feat(view): import images from file or clipboard

view/useImageImport.tsx

@@ -0,0 +1,108 @@
+import { useCallback, useEffect, useRef } from "react";
+import { commandIds } from "@commands/ids";
+import type { AppStore } from "@editor/store";
+
+export function useImageImport(store: AppStore) {
+  const inputRef = useRef<HTMLInputElement | null>(null);
+
+  const importFile = useCallback(
+    async (file: File) => {
+      if (!file.type.startsWith("image/")) return;
+
+      const source = URL.createObjectURL(file);
+      const intrinsicSize = await loadImageSize(source);
+      const state = store.getState();
+      const artboard = state.editor.selection.artboardId
+        ? state.document.artboards.find((candidate) => candidate.id === state.editor.selection.artboardId)
+        : state.document.artboards[0];
+
+      if (!artboard) {
+        URL.revokeObjectURL(source);
+        return;
+      }
+
+      const assetId = crypto.randomUUID();
+      const layerId = crypto.randomUUID();
+      const center = state.editor.viewport.center;
+
+      store.dispatch(commandIds.documentAddAsset, {
+        asset: {
+          id: assetId,
+          name: file.name,
+          mimeType: file.type,
+          source,
+          intrinsicSize,
+        },
+      });
+      store.dispatch(commandIds.documentAddImageLayer, {
+        artboardId: artboard.id,
+        layer: {
+          id: layerId,
+          type: "image",
+          name: file.name,
+          visible: true,
+          locked: false,
+          opacity: 1,
+          assetId,
+          transform: {
+            position: { x: center.x - intrinsicSize.w / 2, y: center.y - intrinsicSize.h / 2 },
+            scale: { x: 1, y: 1 },
+            rotation: 0,
+          },
+        },
+      });
+      store.dispatch(commandIds.selectionSet, { artboardId: artboard.id, layerIds: [layerId] });
+    },
+    [store],
+  );
+
+  const openFilePicker = useCallback(() => inputRef.current?.click(), []);
+
+  useEffect(() => {
+    const handleKeyDown = (event: KeyboardEvent) => {
+      if (event.defaultPrevented || event.key.toLowerCase() !== "o" || (!event.metaKey && !event.ctrlKey)) return;
+      event.preventDefault();
+      openFilePicker();
+    };
+
+    const handlePaste = (event: ClipboardEvent) => {
+      const file = [...(event.clipboardData?.files ?? [])].find((candidate) => candidate.type.startsWith("image/"));
+      if (!file) return;
+
+      event.preventDefault();
+      void importFile(file);
+    };
+
+    window.addEventListener("keydown", handleKeyDown);
+    window.addEventListener("paste", handlePaste);
+    return () => {
+      window.removeEventListener("keydown", handleKeyDown);
+      window.removeEventListener("paste", handlePaste);
+    };
+  }, [importFile, openFilePicker]);
+
+  const input = (
+    <input
+      ref={inputRef}
+      type="file"
+      accept="image/*"
+      className="hidden"
+      onChange={(event) => {
+        const file = event.currentTarget.files?.[0];
+        event.currentTarget.value = "";
+        if (file) void importFile(file);
+      }}
+    />
+  );
+
+  return { input, openFilePicker, importFile };
+}
+
+function loadImageSize(source: string): Promise<{ w: number; h: number }> {
+  return new Promise((resolve, reject) => {
+    const image = new Image();
+    image.onload = () => resolve({ w: image.naturalWidth, h: image.naturalHeight });
+    image.onerror = () => reject(new Error("Failed to load image"));
+    image.src = source;
+  });
+}