1 files changed, 86 insertions, 0 deletions
diff --git a/devtools/client/shared/link.js b/devtools/client/shared/link.js
new file mode 100644
index 0000000000..2e85caad0c
--- /dev/null
+++ b/devtools/client/shared/link.js
@@ -0,0 +1,86 @@
+/* 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/. */
+
+"use strict";
+
+const {
+  gDevTools,
+} = require("resource://devtools/client/framework/devtools.js");
+
+/**
+ * Retrieve the most recent chrome window.
+ */
+function _getTopWindow() {
+  // Try the main application window, such as a browser window.
+  let win = Services.wm.getMostRecentWindow(gDevTools.chromeWindowType);
+  if (win?.openWebLinkIn && win?.openTrustedLinkIn) {
+    return win;
+  }
+  // For non-browser cases like Browser Toolbox, try any chrome window.
+  win = Services.wm.getMostRecentWindow(null);
+  if (win?.openWebLinkIn && win?.openTrustedLinkIn) {
+    return win;
+  }
+  return null;
+}
+
+/**
+ * Opens a |url| that does not require trusted access, such as a documentation page, in a
+ * new tab.
+ *
+ * @param {String} url
+ *        The url to open.
+ * @param {Object} options
+ *        Optional parameters, see documentation for openUILinkIn in utilityOverlay.js
+ */
+exports.openDocLink = async function (url, options) {
+  const top = _getTopWindow();
+  if (!top) {
+    return;
+  }
+  top.openWebLinkIn(url, "tab", options);
+};
+
+/**
+ * Opens a |url| controlled by web content in a new tab.
+ *
+ * If the current tab has an open toolbox, this will attempt to refine the
+ * `triggeringPrincipal` of the link using the tab's `contentPrincipal`.  This is only an
+ * approximation, so bug 1467945 hopes to improve this.
+ *
+ * @param {String} url
+ *        The url to open.
+ * @param {Object} options
+ *        Optional parameters, see documentation for openUILinkIn in utilityOverlay.js
+ */
+exports.openContentLink = async function (url, options = {}) {
+  const top = _getTopWindow();
+  if (!top) {
+    return;
+  }
+  if (!options.triggeringPrincipal && top.gBrowser) {
+    const tab = top.gBrowser.selectedTab;
+    if (gDevTools.hasToolboxForTab(tab)) {
+      options.triggeringPrincipal = tab.linkedBrowser.contentPrincipal;
+      options.csp = tab.linkedBrowser.csp;
+    }
+  }
+  top.openWebLinkIn(url, "tab", options);
+};
+
+/**
+ * Open a trusted |url| in a new tab using the SystemPrincipal.
+ *
+ * @param {String} url
+ *        The url to open.
+ * @param {Object} options
+ *        Optional parameters, see documentation for openUILinkIn in utilityOverlay.js
+ */
+exports.openTrustedLink = async function (url, options) {
+  const top = _getTopWindow();
+  if (!top) {
+    return;
+  }
+  top.openTrustedLinkIn(url, "tab", options);
+};