1 files changed, 68 insertions, 0 deletions
diff --git a/src/content/operators/impls/ScrollOperatorFactoryChain.ts b/src/content/operators/impls/ScrollOperatorFactoryChain.ts
new file mode 100644
index 0000000..6847aea
--- /dev/null
+++ b/src/content/operators/impls/ScrollOperatorFactoryChain.ts
@@ -0,0 +1,68 @@
+import { inject, injectable } from "tsyringe";
+import OperatorFactoryChain from "../OperatorFactoryChain";
+import ScrollPresenter from "../../presenters/ScrollPresenter";
+import SettingRepository from "../../repositories/SettingRepository";
+import * as operations from "../../../shared/operations";
+import Operator from "../Operator";
+import VerticalScrollOperator from "./VerticalScrollOperator";
+import HorizontalScrollOperator from "./HorizontalScrollOperator";
+import PageScrollOperator from "./PageScrollOperator";
+import ScrollToTopOperator from "./ScrollToTopOperator";
+import ScrollToBottomOperator from "./ScrollToBottomOperator";
+import ScrollToHomeOperator from "./ScrollToHomeOperator";
+import ScrollToEndOperator from "./ScrollToEndOperator";
+
+@injectable()
+export default class ScrollOperatorFactoryChain
+  implements OperatorFactoryChain {
+  constructor(
+    @inject("ScrollPresenter")
+    private readonly scrollPresenter: ScrollPresenter,
+    @inject("SettingRepository")
+    private readonly settingRepository: SettingRepository
+  ) {}
+
+  create(op: operations.Operation, repeat: number): Operator | null {
+    switch (op.type) {
+      case operations.SCROLL_VERTICALLY:
+        return new VerticalScrollOperator(
+          this.scrollPresenter,
+          this.settingRepository,
+          op.count * repeat
+        );
+      case operations.SCROLL_HORIZONALLY:
+        return new HorizontalScrollOperator(
+          this.scrollPresenter,
+          this.settingRepository,
+          op.count * repeat
+        );
+      case operations.SCROLL_PAGES:
+        return new PageScrollOperator(
+          this.scrollPresenter,
+          this.settingRepository,
+          op.count * repeat
+        );
+      case operations.SCROLL_TOP:
+        return new ScrollToTopOperator(
+          this.scrollPresenter,
+          this.settingRepository
+        );
+      case operations.SCROLL_BOTTOM:
+        return new ScrollToBottomOperator(
+          this.scrollPresenter,
+          this.settingRepository
+        );
+      case operations.SCROLL_HOME:
+        return new ScrollToHomeOperator(
+          this.scrollPresenter,
+          this.settingRepository
+        );
+      case operations.SCROLL_END:
+        return new ScrollToEndOperator(
+          this.scrollPresenter,
+          this.settingRepository
+        );
+    }
+    return null;
+  }
+}