Merging upstream version 127.0.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 110 insertions, 0 deletions

diff --git a/toolkit/modules/sessionstore/SessionStoreHelper.sys.mjs b/toolkit/modules/sessionstore/SessionStoreHelper.sys.mjs
new file mode 100644
index 0000000000..d443cdb647
--- /dev/null
+++ b/toolkit/modules/sessionstore/SessionStoreHelper.sys.mjs
@@ -0,0 +1,110 @@
+/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*-
+ * 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/. */
+
+/**
+ * The external API exported by this module.
+ */
+export var SessionStoreHelper = Object.freeze({
+  buildRestoreData(formdata, scroll) {
+    return SessionStoreHelperInternal.buildRestoreData(formdata, scroll);
+  },
+});
+
+/**
+ * The internal API for the SessionStoreHelper module.
+ */
+var SessionStoreHelperInternal = {
+  /**
+   * Builds a single nsISessionStoreRestoreData tree for the provided |formdata|
+   * and |scroll| trees.
+   */
+  buildRestoreData(formdata, scroll) {
+    function addFormEntries(root, fields, isXpath) {
+      for (let [key, value] of Object.entries(fields)) {
+        switch (typeof value) {
+          case "string":
+            root.addTextField(isXpath, key, value);
+            break;
+          case "boolean":
+            root.addCheckbox(isXpath, key, value);
+            break;
+          case "object": {
+            if (value === null) {
+              break;
+            }
+            if (
+              value.hasOwnProperty("type") &&
+              value.hasOwnProperty("fileList")
+            ) {
+              root.addFileList(isXpath, key, value.type, value.fileList);
+              break;
+            }
+            if (
+              value.hasOwnProperty("selectedIndex") &&
+              value.hasOwnProperty("value")
+            ) {
+              root.addSingleSelect(
+                isXpath,
+                key,
+                value.selectedIndex,
+                value.value
+              );
+              break;
+            }
+            if (
+              value.hasOwnProperty("value") &&
+              value.hasOwnProperty("state")
+            ) {
+              root.addCustomElement(isXpath, key, value.value, value.state);
+              break;
+            }
+            if (
+              key === "sessionData" &&
+              ["about:sessionrestore", "about:welcomeback"].includes(
+                formdata.url
+              )
+            ) {
+              root.addTextField(isXpath, key, JSON.stringify(value));
+              break;
+            }
+            if (Array.isArray(value)) {
+              root.addMultipleSelect(isXpath, key, value);
+              break;
+            }
+          }
+        }
+      }
+    }
+
+    let root = SessionStoreUtils.constructSessionStoreRestoreData();
+    if (scroll?.hasOwnProperty("scroll")) {
+      root.scroll = scroll.scroll;
+    }
+    if (formdata?.hasOwnProperty("url")) {
+      root.url = formdata.url;
+      if (formdata.hasOwnProperty("innerHTML")) {
+        // eslint-disable-next-line no-unsanitized/property
+        root.innerHTML = formdata.innerHTML;
+      }
+      if (formdata.hasOwnProperty("xpath")) {
+        addFormEntries(root, formdata.xpath, /* isXpath */ true);
+      }
+      if (formdata.hasOwnProperty("id")) {
+        addFormEntries(root, formdata.id, /* isXpath */ false);
+      }
+    }
+    let childrenLength = Math.max(
+      scroll?.children?.length || 0,
+      formdata?.children?.length || 0
+    );
+    for (let i = 0; i < childrenLength; i++) {
+      root.addChild(
+        this.buildRestoreData(formdata?.children?.[i], scroll?.children?.[i]),
+        i
+      );
+    }
+    return root;
+  },
+};