1 files changed, 45 insertions, 0 deletions
diff --git a/src/background/clients/FindClient.ts b/src/background/clients/FindClient.ts
new file mode 100644
index 0000000..b46b964
--- /dev/null
+++ b/src/background/clients/FindClient.ts
@@ -0,0 +1,45 @@
+import * as messages from "../../shared/messages";
+
+export default interface FindClient {
+  findNext(tabId: number, frameId: number, keyword: string): Promise<boolean>;
+
+  findPrev(tabId: number, frameId: number, keyword: string): Promise<boolean>;
+
+  clearSelection(tabId: number, frameId: number): Promise<void>;
+}
+
+export class FindClientImpl implements FindClient {
+  async findNext(
+    tabId: number,
+    frameId: number,
+    keyword: string
+  ): Promise<boolean> {
+    const found = (await browser.tabs.sendMessage(
+      tabId,
+      { type: messages.FIND_NEXT, keyword },
+      { frameId }
+    )) as boolean;
+    return found;
+  }
+
+  async findPrev(
+    tabId: number,
+    frameId: number,
+    keyword: string
+  ): Promise<boolean> {
+    const found = (await browser.tabs.sendMessage(
+      tabId,
+      { type: messages.FIND_PREV, keyword },
+      { frameId }
+    )) as boolean;
+    return found;
+  }
+
+  clearSelection(tabId: number, frameId: number): Promise<void> {
+    return browser.tabs.sendMessage(
+      tabId,
+      { type: messages.FIND_CLEAR_SELECTION },
+      { frameId }
+    );
+  }
+}