1 files changed, 184 insertions, 0 deletions
diff --git a/browser/base/content/webext-panels.js b/browser/base/content/webext-panels.js
new file mode 100644
index 0000000000..d9f8b03a29
--- /dev/null
+++ b/browser/base/content/webext-panels.js
@@ -0,0 +1,184 @@
+/* -*- indent-tabs-mode: nil; js-indent-level: 4 -*- */
+/* 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/. */
+
+// Via webext-panels.xhtml
+/* import-globals-from browser.js */
+/* import-globals-from nsContextMenu.js */
+
+ChromeUtils.defineESModuleGetters(this, {
+  ExtensionParent: "resource://gre/modules/ExtensionParent.sys.mjs",
+});
+
+const { ExtensionUtils } = ChromeUtils.importESModule(
+  "resource://gre/modules/ExtensionUtils.sys.mjs"
+);
+
+var { promiseEvent } = ExtensionUtils;
+
+function getBrowser(panel) {
+  let browser = document.getElementById("webext-panels-browser");
+  if (browser) {
+    return Promise.resolve(browser);
+  }
+
+  let stack = document.getElementById("webext-panels-stack");
+  if (!stack) {
+    stack = document.createXULElement("stack");
+    stack.setAttribute("flex", "1");
+    stack.setAttribute("id", "webext-panels-stack");
+    document.documentElement.appendChild(stack);
+  }
+
+  browser = document.createXULElement("browser");
+  browser.setAttribute("id", "webext-panels-browser");
+  browser.setAttribute("type", "content");
+  browser.setAttribute("flex", "1");
+  browser.setAttribute("disableglobalhistory", "true");
+  browser.setAttribute("messagemanagergroup", "webext-browsers");
+  browser.setAttribute("webextension-view-type", panel.viewType);
+  browser.setAttribute("context", "contentAreaContextMenu");
+  browser.setAttribute("tooltip", "aHTMLTooltip");
+  browser.setAttribute("autocompletepopup", "PopupAutoComplete");
+
+  // Ensure that the browser is going to run in the same bc group as the other
+  // extension pages from the same addon.
+  browser.setAttribute(
+    "initialBrowsingContextGroupId",
+    panel.extension.policy.browsingContextGroupId
+  );
+
+  let readyPromise;
+  if (panel.extension.remote) {
+    browser.setAttribute("remote", "true");
+    let oa = E10SUtils.predictOriginAttributes({ browser });
+    browser.setAttribute(
+      "remoteType",
+      E10SUtils.getRemoteTypeForURI(
+        panel.uri,
+        /* remote */ true,
+        /* fission */ false,
+        E10SUtils.EXTENSION_REMOTE_TYPE,
+        null,
+        oa
+      )
+    );
+    browser.setAttribute("maychangeremoteness", "true");
+
+    readyPromise = promiseEvent(browser, "XULFrameLoaderCreated");
+  } else {
+    readyPromise = Promise.resolve();
+  }
+
+  stack.appendChild(browser);
+
+  browser.addEventListener(
+    "DoZoomEnlargeBy10",
+    () => {
+      let { ZoomManager } = browser.ownerGlobal;
+      let zoom = browser.fullZoom;
+      zoom += 0.1;
+      if (zoom > ZoomManager.MAX) {
+        zoom = ZoomManager.MAX;
+      }
+      browser.fullZoom = zoom;
+    },
+    true
+  );
+  browser.addEventListener(
+    "DoZoomReduceBy10",
+    () => {
+      let { ZoomManager } = browser.ownerGlobal;
+      let zoom = browser.fullZoom;
+      zoom -= 0.1;
+      if (zoom < ZoomManager.MIN) {
+        zoom = ZoomManager.MIN;
+      }
+      browser.fullZoom = zoom;
+    },
+    true
+  );
+
+  const initBrowser = () => {
+    ExtensionParent.apiManager.emit(
+      "extension-browser-inserted",
+      browser,
+      panel.browserInsertedData
+    );
+
+    browser.messageManager.loadFrameScript(
+      "chrome://extensions/content/ext-browser-content.js",
+      false,
+      true
+    );
+
+    let options =
+      panel.browserStyle !== false
+        ? { stylesheets: ExtensionParent.extensionStylesheets }
+        : {};
+    browser.messageManager.sendAsyncMessage("Extension:InitBrowser", options);
+    return browser;
+  };
+
+  browser.addEventListener("DidChangeBrowserRemoteness", initBrowser);
+  return readyPromise.then(initBrowser);
+}
+
+// Stub tabbrowser implementation for use by the tab-modal alert code.
+var gBrowser = {
+  get selectedBrowser() {
+    return document.getElementById("webext-panels-browser");
+  },
+
+  getTabForBrowser(browser) {
+    return null;
+  },
+
+  getTabModalPromptBox(browser) {
+    if (!browser.tabModalPromptBox) {
+      browser.tabModalPromptBox = new TabModalPromptBox(browser);
+    }
+    return browser.tabModalPromptBox;
+  },
+};
+
+function updatePosition() {
+  // We need both of these to make sure we update the position
+  // after any lower level updates have finished.
+  requestAnimationFrame(() =>
+    setTimeout(() => {
+      let browser = document.getElementById("webext-panels-browser");
+      if (browser && browser.isRemoteBrowser) {
+        browser.frameLoader.requestUpdatePosition();
+      }
+    }, 0)
+  );
+}
+
+function loadPanel(extensionId, extensionUrl, browserStyle) {
+  let browserEl = document.getElementById("webext-panels-browser");
+  if (browserEl) {
+    if (browserEl.currentURI.spec === extensionUrl) {
+      return;
+    }
+    // Forces runtime disconnect.  Remove the stack (parent).
+    browserEl.parentNode.remove();
+  }
+
+  let policy = WebExtensionPolicy.getByID(extensionId);
+
+  let sidebar = {
+    uri: extensionUrl,
+    extension: policy.extension,
+    browserStyle,
+    viewType: "sidebar",
+  };
+
+  getBrowser(sidebar).then(browser => {
+    let uri = Services.io.newURI(policy.getURL());
+    let triggeringPrincipal =
+      Services.scriptSecurityManager.createContentPrincipal(uri, {});
+    browser.fixupAndLoadURIString(extensionUrl, { triggeringPrincipal });
+  });
+}