5 files changed, 85 insertions, 1 deletions
diff --git a/src/background/completion/CompletionUseCase.ts b/src/background/completion/OpenCompletionUseCase.ts
index f7531e7..1b63e7c 100644
--- a/src/background/completion/CompletionUseCase.ts
+++ b/src/background/completion/OpenCompletionUseCase.ts
@@ -15,7 +15,7 @@ export type HistoryItem = {
 }
 
 @injectable()
-export default class CompletionUseCase {
+export default class OpenCompletionUseCase {
   constructor(
     @inject('BookmarkRepository') private bookmarkRepository: BookmarkRepository,
     @inject('HistoryRepository') private historyRepository: HistoryRepository,
diff --git a/src/background/completion/TabCompletionUseCase.ts b/src/background/completion/TabCompletionUseCase.ts
new file mode 100644
index 0000000..7e6dce3
--- /dev/null
+++ b/src/background/completion/TabCompletionUseCase.ts
@@ -0,0 +1,34 @@
+import { inject, injectable } from "tsyringe";
+import TabItem from "./TabItem";
+import TabRepository from "./TabRepository";
+import TabPresenter from "../presenters/TabPresenter";
+import TabFlag from "../../shared/TabFlag";
+
+@injectable()
+export default class TabCompletionUseCase {
+  constructor(
+      @inject('TabRepository') private tabRepository: TabRepository,
+      @inject('TabPresenter') private tabPresenter: TabPresenter,
+  ) {
+  }
+
+  async queryTabs(query: string, excludePinned: boolean): Promise<TabItem[]> {
+    const lastTabId = await this.tabPresenter.getLastSelectedId();
+    const tabs = await this.tabRepository.queryTabs(query, excludePinned);
+    return tabs.map(tab => {
+      let flag = TabFlag.None;
+      if (tab.active) {
+        flag = TabFlag.CurrentTab
+      } else if (tab.id == lastTabId) {
+        flag = TabFlag.LastTab
+      }
+      return {
+        index: tab.index + 1,
+        flag: flag,
+        title: tab.title,
+        url: tab.url,
+        faviconUrl : tab.faviconUrl
+      }
+    });
+  }
+}
diff --git a/src/background/completion/TabItem.ts b/src/background/completion/TabItem.ts
new file mode 100644
index 0000000..630855a
--- /dev/null
+++ b/src/background/completion/TabItem.ts
@@ -0,0 +1,11 @@
+import TabFlag from "../../shared/TabFlag";
+
+type TabItem = {
+    index: number
+    flag: TabFlag
+    title: string
+    url: string
+    faviconUrl?: string
+}
+
+export default TabItem;
+\ No newline at end of file
diff --git a/src/background/completion/TabRepository.ts b/src/background/completion/TabRepository.ts
new file mode 100644
index 0000000..61fac3b
--- /dev/null
+++ b/src/background/completion/TabRepository.ts
@@ -0,0 +1,12 @@
+export type Tab = {
+  id: number
+  index: number
+  active: boolean
+  title: string
+  url: string
+  faviconUrl?: string
+}
+
+export default interface TabRepository {
+  queryTabs(query: string, excludePinned: boolean): Promise<Tab[]>;
+}
diff --git a/src/background/completion/impl/TabRepositoryImpl.ts b/src/background/completion/impl/TabRepositoryImpl.ts
new file mode 100644
index 0000000..6692b27
--- /dev/null
+++ b/src/background/completion/impl/TabRepositoryImpl.ts
@@ -0,0 +1,27 @@
+import TabRepository, { Tab } from "../TabRepository";
+
+const COMPLETION_ITEM_LIMIT = 10;
+
+export default class TabRepositoryImpl implements TabRepository {
+  async queryTabs(query: string, excludePinned: boolean): Promise<Tab[]> {
+    const tabs = await browser.tabs.query({ currentWindow: true });
+    return tabs
+      .filter((t) => {
+        return t.url && t.url.toLowerCase().includes(query.toLowerCase()) ||
+          t.title && t.title.toLowerCase().includes(query.toLowerCase());
+      })
+      .filter((t) => {
+        return !(excludePinned && t.pinned);
+      })
+      .filter(item => item.id && item.title && item.url)
+      .slice(0, COMPLETION_ITEM_LIMIT)
+      .map(item => ({
+        id: item.id!!,
+        url: item.url!!,
+        active: item.active,
+        title: item.title!!,
+        faviconUrl: item.favIconUrl,
+        index: item.index,
+      }))
+  }
+}
+\ No newline at end of file