Capitalize background scripts

src/background/infrastructures/ContentMessageClient.js

@@ -0,0 +1,33 @@
+import messages from '../../shared/messages';
+
+export default class ContentMessageClient {
+  async broadcastSettingsChanged() {
+    let tabs = await browser.tabs.query({});
+    for (let tab of tabs) {
+      browser.tabs.sendMessage(tab.id, {
+        type: messages.SETTINGS_CHANGED,
+      });
+    }
+  }
+
+  async getAddonEnabled(tabId) {
+    let { enabled } = await browser.tabs.sendMessage(tabId, {
+      type: messages.ADDON_ENABLED_QUERY,
+    });
+    return enabled;
+  }
+
+  toggleAddonEnabled(tabId) {
+    return browser.tabs.sendMessage(tabId, {
+      type: messages.ADDON_TOGGLE_ENABLED,
+    });
+  }
+
+  scrollTo(tabId, x, y) {
+    return browser.tabs.sendMessage(tabId, {
+      type: messages.TAB_SCROLL_TO,
+      x,
+      y,
+    });
+  }
+}