From 36d22d82aa202bb199967e9512281e9a53db42c9 Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Sun, 7 Apr 2024 21:33:14 +0200
Subject: Adding upstream version 115.7.0esr.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 .../sessionstore/SessionStoreRestoreData.cpp       | 186 +++++++++++++++++++++
 1 file changed, 186 insertions(+)
 create mode 100644 toolkit/components/sessionstore/SessionStoreRestoreData.cpp

(limited to 'toolkit/components/sessionstore/SessionStoreRestoreData.cpp')

diff --git a/toolkit/components/sessionstore/SessionStoreRestoreData.cpp b/toolkit/components/sessionstore/SessionStoreRestoreData.cpp
new file mode 100644
index 0000000000..c7a92cf8ad
--- /dev/null
+++ b/toolkit/components/sessionstore/SessionStoreRestoreData.cpp
@@ -0,0 +1,186 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* 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/. */
+
+#include "mozilla/dom/BrowsingContext.h"
+#include "mozilla/dom/Document.h"
+#include "mozilla/dom/SessionStoreUtils.h"
+#include "mozilla/dom/sessionstore/SessionStoreTypes.h"
+#include "mozilla/dom/WindowContext.h"
+#include "nsISessionStoreRestoreData.h"
+#include "nsNetUtil.h"
+
+namespace mozilla {
+namespace dom {
+
+bool SessionStoreRestoreData::IsEmpty() {
+  return (!mURI && mScroll.IsEmpty() && mInnerHTML.IsEmpty() &&
+          mEntries.IsEmpty() && mChildren.IsEmpty());
+}
+
+SessionStoreRestoreData* SessionStoreRestoreData::FindDataForChild(
+    BrowsingContext* aContext) {
+  nsTArray<uint32_t> path;
+  if (!aContext->GetOffsetPath(path)) {
+    return nullptr;
+  }
+
+  SessionStoreRestoreData* data = this;
+
+  for (uint32_t offset : Reversed(path)) {
+    if (!data || data->mChildren.Length() <= offset ||
+        !data->mChildren[offset] || data->mChildren[offset]->IsEmpty()) {
+      return nullptr;
+    }
+    data = data->mChildren[offset];
+  }
+
+  return data;
+}
+
+bool SessionStoreRestoreData::CanRestoreInto(nsIURI* aDocumentURI) {
+  if (!mURI) {
+    // This should mean that we don't have form data. It's fine to restore this
+    // data into any document — the worst that will happen is that we restore an
+    // incorrect scroll position.
+    MOZ_ASSERT(mEntries.IsEmpty());
+    MOZ_ASSERT(mInnerHTML.IsEmpty());
+    return true;
+  }
+  bool equalsExceptRef = false;
+  return (aDocumentURI &&
+          NS_SUCCEEDED(mURI->EqualsExceptRef(aDocumentURI, &equalsExceptRef)) &&
+          equalsExceptRef);
+}
+
+bool SessionStoreRestoreData::RestoreInto(RefPtr<BrowsingContext> aContext) {
+  if (!aContext->IsInProcess()) {
+    return false;
+  }
+
+  if (WindowContext* window = aContext->GetCurrentWindowContext()) {
+    if (!mScroll.IsEmpty()) {
+      if (nsGlobalWindowInner* inner = window->GetInnerWindow()) {
+        SessionStoreUtils::RestoreScrollPosition(*inner, mScroll);
+      }
+    }
+    if (mURI) {
+      if (nsCOMPtr<Document> doc = window->GetExtantDoc()) {
+        if (!CanRestoreInto(doc->GetDocumentURI())) {
+          return false;
+        }
+        SessionStoreUtils::RestoreFormData(*doc, mInnerHTML, mEntries);
+      }
+    }
+  }
+
+  return true;
+}
+
+void SessionStoreRestoreData::AddFormEntry(
+    bool aIsXPath, const nsAString& aIdOrXPath,
+    sessionstore::FormEntryValue aValue) {
+  mEntries.AppendElement(
+      Entry{sessionstore::FormEntry{nsString(aIdOrXPath), aValue}, aIsXPath});
+}
+
+NS_IMPL_ISUPPORTS(SessionStoreRestoreData, nsISessionStoreRestoreData,
+                  SessionStoreRestoreData)
+
+NS_IMETHODIMP
+SessionStoreRestoreData::GetUrl(nsACString& aURL) {
+  if (mURI) {
+    nsresult rv = mURI->GetSpec(aURL);
+    NS_ENSURE_SUCCESS(rv, rv);
+  }
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+SessionStoreRestoreData::SetUrl(const nsACString& aURL) {
+  nsresult rv = NS_NewURI(getter_AddRefs(mURI), aURL);
+  NS_ENSURE_SUCCESS(rv, rv);
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+SessionStoreRestoreData::GetInnerHTML(nsAString& aInnerHTML) {
+  aInnerHTML = mInnerHTML;
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+SessionStoreRestoreData::SetInnerHTML(const nsAString& aInnerHTML) {
+  mInnerHTML = aInnerHTML;
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+SessionStoreRestoreData::GetScroll(nsACString& aScroll) {
+  aScroll = mScroll;
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+SessionStoreRestoreData::SetScroll(const nsACString& aScroll) {
+  mScroll = aScroll;
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+SessionStoreRestoreData::AddTextField(bool aIsXPath,
+                                      const nsAString& aIdOrXPath,
+                                      const nsAString& aValue) {
+  AddFormEntry(aIsXPath, aIdOrXPath, sessionstore::TextField{nsString(aValue)});
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+SessionStoreRestoreData::AddCheckbox(bool aIsXPath, const nsAString& aIdOrXPath,
+                                     const bool aValue) {
+  AddFormEntry(aIsXPath, aIdOrXPath, sessionstore::Checkbox{aValue});
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+SessionStoreRestoreData::AddFileList(bool aIsXPath, const nsAString& aIdOrXPath,
+                                     const nsAString& aType,
+                                     const nsTArray<nsString>& aFileList) {
+  AddFormEntry(aIsXPath, aIdOrXPath, sessionstore::FileList{aFileList});
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+SessionStoreRestoreData::AddSingleSelect(bool aIsXPath,
+                                         const nsAString& aIdOrXPath,
+                                         uint32_t aSelectedIndex,
+                                         const nsAString& aValue) {
+  AddFormEntry(aIsXPath, aIdOrXPath,
+               sessionstore::SingleSelect{aSelectedIndex, nsString(aValue)});
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+SessionStoreRestoreData::AddMultipleSelect(bool aIsXPath,
+                                           const nsAString& aIdOrXPath,
+                                           const nsTArray<nsString>& aValues) {
+  AddFormEntry(aIsXPath, aIdOrXPath, sessionstore::MultipleSelect{aValues});
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+SessionStoreRestoreData::AddChild(nsISessionStoreRestoreData* aChild,
+                                  uint32_t aIndex) {
+  if (nsCOMPtr<SessionStoreRestoreData> child = do_QueryInterface(aChild)) {
+    if (aIndex > mChildren.Length()) {
+      mChildren.SetLength(aIndex);
+    }
+    mChildren.InsertElementAt(aIndex, child);
+  }
+  return NS_OK;
+}
+
+}  // namespace dom
+}  // namespace mozilla
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