1 files changed, 119 insertions, 0 deletions
diff --git a/layout/forms/nsSearchControlFrame.cpp b/layout/forms/nsSearchControlFrame.cpp
new file mode 100644
index 0000000000..1bf86fef25
--- /dev/null
+++ b/layout/forms/nsSearchControlFrame.cpp
@@ -0,0 +1,119 @@
+/* -*- 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 "nsSearchControlFrame.h"
+
+#include "HTMLInputElement.h"
+#include "mozilla/PresShell.h"
+#include "nsGkAtoms.h"
+#include "nsNameSpaceManager.h"
+#include "nsStyleConsts.h"
+#include "nsContentUtils.h"
+#include "nsContentCreatorFunctions.h"
+#include "nsCSSPseudoElements.h"
+#include "nsICSSDeclaration.h"
+
+#ifdef ACCESSIBILITY
+#  include "mozilla/a11y/AccTypes.h"
+#endif
+
+using namespace mozilla;
+using namespace mozilla::dom;
+
+nsIFrame* NS_NewSearchControlFrame(PresShell* aPresShell,
+                                   ComputedStyle* aStyle) {
+  return new (aPresShell)
+      nsSearchControlFrame(aStyle, aPresShell->GetPresContext());
+}
+
+NS_IMPL_FRAMEARENA_HELPERS(nsSearchControlFrame)
+
+NS_QUERYFRAME_HEAD(nsSearchControlFrame)
+  NS_QUERYFRAME_ENTRY(nsSearchControlFrame)
+NS_QUERYFRAME_TAIL_INHERITING(nsTextControlFrame)
+
+nsSearchControlFrame::nsSearchControlFrame(ComputedStyle* aStyle,
+                                           nsPresContext* aPresContext)
+    : nsTextControlFrame(aStyle, aPresContext, kClassID) {}
+
+void nsSearchControlFrame::DestroyFrom(nsIFrame* aDestructRoot,
+                                       PostDestroyData& aPostDestroyData) {
+  aPostDestroyData.AddAnonymousContent(mOuterWrapper.forget());
+  nsTextControlFrame::DestroyFrom(aDestructRoot, aPostDestroyData);
+}
+
+nsresult nsSearchControlFrame::CreateAnonymousContent(
+    nsTArray<ContentInfo>& aElements) {
+  // We create an anonymous tree for our input element that is structured as
+  // follows:
+  //
+  // input
+  //   div      - outer wrapper with "display:flex" by default
+  //     div    - editor root
+  //     button - clear button
+  //   div      - placeholder
+  //   div      - preview div
+  //
+  // If you change this, be careful to change the destruction order in
+  // nsSearchControlFrame::DestroyFrom.
+
+  // Create the anonymous outer wrapper:
+  mOuterWrapper = MakeAnonElement(PseudoStyleType::mozComplexControlWrapper);
+
+  aElements.AppendElement(mOuterWrapper);
+
+  nsTArray<ContentInfo> nestedContent;
+  nsTextControlFrame::CreateAnonymousContent(nestedContent);
+  for (auto& content : nestedContent) {
+    // The root goes inside the container.
+    if (content.mContent == mRootNode) {
+      mOuterWrapper->AppendChildTo(content.mContent, false);
+    } else {
+      // The rest (placeholder and preview), directly under us.
+      aElements.AppendElement(std::move(content));
+    }
+  }
+
+  // Create the ::-moz-search-clear-button pseudo-element:
+  mClearButton = MakeAnonElement(PseudoStyleType::mozSearchClearButton,
+                                 mOuterWrapper, nsGkAtoms::button);
+
+  // Update clear button visibility based on value
+  UpdateClearButtonState();
+
+  return NS_OK;
+}
+
+void nsSearchControlFrame::AppendAnonymousContentTo(
+    nsTArray<nsIContent*>& aElements, uint32_t aFilter) {
+  if (mOuterWrapper) {
+    aElements.AppendElement(mOuterWrapper);
+  }
+  if (mPlaceholderDiv) {
+    aElements.AppendElement(mPlaceholderDiv);
+  }
+  if (mPreviewDiv) {
+    aElements.AppendElement(mPreviewDiv);
+  }
+}
+
+void nsSearchControlFrame::UpdateClearButtonState() {
+  if (!mClearButton) {
+    return;
+  }
+
+  auto* content = HTMLInputElement::FromNode(mContent);
+
+  nsGenericHTMLElement* element = nsGenericHTMLElement::FromNode(mClearButton);
+  nsCOMPtr<nsICSSDeclaration> declaration = element->Style();
+  if (content->IsValueEmpty()) {
+    declaration->SetProperty("visibility"_ns, "hidden"_ns, ""_ns,
+                             IgnoreErrors());
+  } else {
+    nsAutoCString dummy;
+    declaration->RemoveProperty("visibility"_ns, dummy, IgnoreErrors());
+  }
+}