1 files changed, 135 insertions, 0 deletions
diff --git a/browser/extensions/screenshots/background/startBackground.js b/browser/extensions/screenshots/background/startBackground.js
new file mode 100644
index 0000000000..b32dc3d6f7
--- /dev/null
+++ b/browser/extensions/screenshots/background/startBackground.js
@@ -0,0 +1,135 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this file,
+ * You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+/* globals browser, main, communication, manifest */
+/* This file handles:
+     clicks on the WebExtension page action
+     browser.contextMenus.onClicked
+     browser.runtime.onMessage
+   and loads the rest of the background page in response to those events, forwarding
+   the events to main.onClicked, main.onClickedContextMenu, or communication.onMessage
+*/
+const startTime = Date.now();
+
+// Set up to be able to use fluent:
+(function() {
+  let link = document.createElement("link");
+  link.setAttribute("rel", "localization");
+  link.setAttribute("href", "browser/screenshots.ftl");
+  document.head.appendChild(link);
+
+  link = document.createElement("link");
+  link.setAttribute("rel", "localization");
+  link.setAttribute("href", "browser/branding/brandings.ftl");
+  document.head.appendChild(link);
+})();
+
+this.getStrings = async function(ids) {
+  if (document.readyState != "complete") {
+    await new Promise(resolve => window.addEventListener("load", resolve, {once: true}));
+  }
+  await document.l10n.ready;
+  return document.l10n.formatValues(ids);
+}
+
+this.startBackground = (function() {
+  const exports = {startTime};
+
+  const backgroundScripts = [
+    "log.js",
+    "makeUuid.js",
+    "catcher.js",
+    "blobConverters.js",
+    "background/selectorLoader.js",
+    "background/communication.js",
+    "background/auth.js",
+    "background/senderror.js",
+    "build/raven.js",
+    "build/shot.js",
+    "build/thumbnailGenerator.js",
+    "background/analytics.js",
+    "background/deviceInfo.js",
+    "background/takeshot.js",
+    "background/main.js",
+  ];
+
+  browser.pageAction.onClicked.addListener(tab => {
+    loadIfNecessary().then(() => {
+      main.onClicked(tab);
+    }).catch(error => {
+      console.error("Error loading Screenshots:", error);
+    });
+  });
+
+  this.getStrings([{id: "screenshots-context-menu"}]).then(msgs => {
+    browser.contextMenus.create({
+      id: "create-screenshot",
+      title: msgs[0],
+      contexts: ["page", "selection"],
+      documentUrlPatterns: ["<all_urls>", "about:reader*"],
+    });
+  });
+
+  browser.contextMenus.onClicked.addListener((info, tab) => {
+    loadIfNecessary().then(() => {
+      main.onClickedContextMenu(info, tab);
+    }).catch((error) => {
+      console.error("Error loading Screenshots:", error);
+    });
+  });
+
+  browser.commands.onCommand.addListener((cmd) => {
+    if (cmd !== "take-screenshot") {
+      return;
+    }
+    loadIfNecessary().then(() => {
+      browser.tabs.query({currentWindow: true, active: true}).then((tabs) => {
+        const activeTab = tabs[0];
+        main.onCommand(activeTab);
+      }).catch((error) => {
+        throw error;
+      });
+    }).catch((error) => {
+      console.error("Error toggling Screenshots via keyboard shortcut: ", error);
+    });
+  });
+
+  browser.runtime.onMessage.addListener((req, sender, sendResponse) => {
+    loadIfNecessary().then(() => {
+      return communication.onMessage(req, sender, sendResponse);
+    }).catch((error) => {
+      console.error("Error loading Screenshots:", error);
+    });
+    return true;
+  });
+
+  let loadedPromise;
+
+  function loadIfNecessary() {
+    if (loadedPromise) {
+      return loadedPromise;
+    }
+    loadedPromise = Promise.resolve();
+    backgroundScripts.forEach((script) => {
+      loadedPromise = loadedPromise.then(() => {
+        return new Promise((resolve, reject) => {
+          const tag = document.createElement("script");
+          tag.src = browser.extension.getURL(script);
+          tag.onload = () => {
+            resolve();
+          };
+          tag.onerror = (error) => {
+            const exc = new Error(`Error loading script: ${error.message}`);
+            exc.scriptName = script;
+            reject(exc);
+          };
+          document.head.appendChild(tag);
+        });
+      });
+    });
+    return loadedPromise;
+  }
+
+  return exports;
+})();