Add m-esr52 at 52.6.0

1 files changed, 268 insertions, 0 deletions

diff --git a/dom/html/HTMLMenuElement.cpp b/dom/html/HTMLMenuElement.cpp
new file mode 100644
index 000000000..098590f1b
--- /dev/null
+++ b/dom/html/HTMLMenuElement.cpp
@@ -0,0 +1,268 @@
+/* -*- 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/HTMLMenuElement.h"
+
+#include "mozilla/BasicEvents.h"
+#include "mozilla/EventDispatcher.h"
+#include "mozilla/dom/HTMLMenuElementBinding.h"
+#include "mozilla/dom/HTMLMenuItemElement.h"
+#include "nsIMenuBuilder.h"
+#include "nsAttrValueInlines.h"
+#include "nsContentUtils.h"
+#include "nsIURI.h"
+
+#define HTMLMENUBUILDER_CONTRACTID "@mozilla.org/content/html-menu-builder;1"
+
+NS_IMPL_NS_NEW_HTML_ELEMENT(Menu)
+
+namespace mozilla {
+namespace dom {
+
+enum MenuType : uint8_t
+{
+  MENU_TYPE_CONTEXT = 1,
+  MENU_TYPE_TOOLBAR,
+  MENU_TYPE_LIST
+};
+
+static const nsAttrValue::EnumTable kMenuTypeTable[] = {
+  { "context", MENU_TYPE_CONTEXT },
+  { "toolbar", MENU_TYPE_TOOLBAR },
+  { "list", MENU_TYPE_LIST },
+  { nullptr, 0 }
+};
+
+static const nsAttrValue::EnumTable* kMenuDefaultType =
+  &kMenuTypeTable[2];
+
+enum SeparatorType
+{
+  ST_TRUE_INIT = -1,
+  ST_FALSE = 0,
+  ST_TRUE = 1
+};
+
+
+
+HTMLMenuElement::HTMLMenuElement(already_AddRefed<mozilla::dom::NodeInfo>& aNodeInfo)
+  : nsGenericHTMLElement(aNodeInfo), mType(MENU_TYPE_LIST)
+{
+}
+
+HTMLMenuElement::~HTMLMenuElement()
+{
+}
+
+NS_IMPL_ISUPPORTS_INHERITED(HTMLMenuElement, nsGenericHTMLElement,
+                            nsIDOMHTMLMenuElement, nsIHTMLMenu)
+
+NS_IMPL_ELEMENT_CLONE(HTMLMenuElement)
+
+NS_IMPL_BOOL_ATTR(HTMLMenuElement, Compact, compact)
+NS_IMPL_ENUM_ATTR_DEFAULT_VALUE(HTMLMenuElement, Type, type,
+                                kMenuDefaultType->tag)
+NS_IMPL_STRING_ATTR(HTMLMenuElement, Label, label)
+
+
+NS_IMETHODIMP
+HTMLMenuElement::SendShowEvent()
+{
+  NS_ENSURE_TRUE(nsContentUtils::IsCallerChrome(), NS_ERROR_DOM_SECURITY_ERR);
+
+  nsCOMPtr<nsIDocument> document = GetComposedDoc();
+  if (!document) {
+    return NS_ERROR_FAILURE;
+  }
+
+  WidgetEvent event(true, eShow);
+  event.mFlags.mBubbles = false;
+  event.mFlags.mCancelable = false;
+
+  nsCOMPtr<nsIPresShell> shell = document->GetShell();
+  if (!shell) {
+    return NS_ERROR_FAILURE;
+  }
+ 
+  RefPtr<nsPresContext> presContext = shell->GetPresContext();
+  nsEventStatus status = nsEventStatus_eIgnore;
+  EventDispatcher::Dispatch(static_cast<nsIContent*>(this), presContext,
+                            &event, nullptr, &status);
+
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+HTMLMenuElement::CreateBuilder(nsIMenuBuilder** _retval)
+{
+  NS_ENSURE_TRUE(nsContentUtils::IsCallerChrome(), NS_ERROR_DOM_SECURITY_ERR);
+
+  nsCOMPtr<nsIMenuBuilder> builder = CreateBuilder();
+  builder.swap(*_retval);
+  return NS_OK;
+}
+
+already_AddRefed<nsIMenuBuilder>
+HTMLMenuElement::CreateBuilder()
+{
+  if (mType != MENU_TYPE_CONTEXT) {
+    return nullptr;
+  }
+
+  nsCOMPtr<nsIMenuBuilder> builder = do_CreateInstance(HTMLMENUBUILDER_CONTRACTID);
+  NS_WARNING_ASSERTION(builder, "No builder available");
+  return builder.forget();
+}
+
+NS_IMETHODIMP
+HTMLMenuElement::Build(nsIMenuBuilder* aBuilder)
+{
+  NS_ENSURE_TRUE(nsContentUtils::IsCallerChrome(), NS_ERROR_DOM_SECURITY_ERR);
+
+  if (!aBuilder) {
+    return NS_OK;
+  }
+
+  BuildSubmenu(EmptyString(), this, aBuilder);
+
+  return NS_OK;
+}
+
+
+bool
+HTMLMenuElement::ParseAttribute(int32_t aNamespaceID,
+                                nsIAtom* aAttribute,
+                                const nsAString& aValue,
+                                nsAttrValue& aResult)
+{
+  if (aNamespaceID == kNameSpaceID_None && aAttribute == nsGkAtoms::type) {
+    bool success = aResult.ParseEnumValue(aValue, kMenuTypeTable,
+                                            false);
+    if (success) {
+      mType = aResult.GetEnumValue();
+    } else {
+      mType = kMenuDefaultType->value;
+    }
+
+    return success;
+  }
+
+  return nsGenericHTMLElement::ParseAttribute(aNamespaceID, aAttribute, aValue,
+                                              aResult);
+}
+
+void
+HTMLMenuElement::BuildSubmenu(const nsAString& aLabel,
+                              nsIContent* aContent,
+                              nsIMenuBuilder* aBuilder)
+{
+  aBuilder->OpenContainer(aLabel);
+
+  int8_t separator = ST_TRUE_INIT;
+  TraverseContent(aContent, aBuilder, separator);
+
+  if (separator == ST_TRUE) {
+    aBuilder->UndoAddSeparator();
+  }
+
+  aBuilder->CloseContainer();
+}
+
+// static
+bool
+HTMLMenuElement::CanLoadIcon(nsIContent* aContent, const nsAString& aIcon)
+{
+  if (aIcon.IsEmpty()) {
+    return false;
+  }
+
+  nsIDocument* doc = aContent->OwnerDoc();
+
+  nsCOMPtr<nsIURI> baseURI = aContent->GetBaseURI();
+  nsCOMPtr<nsIURI> uri;
+  nsContentUtils::NewURIWithDocumentCharset(getter_AddRefs(uri), aIcon, doc,
+                                            baseURI);
+
+  if (!uri) {
+    return false;
+  }
+
+  return nsContentUtils::CanLoadImage(uri, aContent, doc,
+                                      aContent->NodePrincipal());
+}
+
+void
+HTMLMenuElement::TraverseContent(nsIContent* aContent,
+                                 nsIMenuBuilder* aBuilder,
+                                 int8_t& aSeparator)
+{
+  nsCOMPtr<nsIContent> child;
+  for (child = aContent->GetFirstChild(); child;
+       child = child->GetNextSibling()) {
+    nsGenericHTMLElement* element = nsGenericHTMLElement::FromContent(child);
+    if (!element) {
+      continue;
+    }
+
+    if (child->IsHTMLElement(nsGkAtoms::menuitem)) {
+      HTMLMenuItemElement* menuitem = HTMLMenuItemElement::FromContent(child);
+
+      if (menuitem->IsHidden()) {
+        continue;
+      }
+
+      nsAutoString label;
+      menuitem->GetLabel(label);
+      if (label.IsEmpty()) {
+        continue;
+      }
+
+      nsAutoString icon;
+      menuitem->GetIcon(icon);
+
+      aBuilder->AddItemFor(menuitem, CanLoadIcon(child, icon));
+
+      aSeparator = ST_FALSE;
+    } else if (child->IsHTMLElement(nsGkAtoms::hr)) {
+      aBuilder->AddSeparator();
+    } else if (child->IsHTMLElement(nsGkAtoms::menu) && !element->IsHidden()) {
+      if (child->HasAttr(kNameSpaceID_None, nsGkAtoms::label)) {
+        nsAutoString label;
+        child->GetAttr(kNameSpaceID_None, nsGkAtoms::label, label);
+
+        BuildSubmenu(label, child, aBuilder);
+
+        aSeparator = ST_FALSE;
+      } else {
+        AddSeparator(aBuilder, aSeparator);
+
+        TraverseContent(child, aBuilder, aSeparator);
+
+        AddSeparator(aBuilder, aSeparator);
+      }
+    }
+  }
+}
+
+inline void
+HTMLMenuElement::AddSeparator(nsIMenuBuilder* aBuilder, int8_t& aSeparator)
+{
+  if (aSeparator) {
+    return;
+  }
+ 
+  aBuilder->AddSeparator();
+  aSeparator = ST_TRUE;
+}
+
+JSObject*
+HTMLMenuElement::WrapNode(JSContext* aCx, JS::Handle<JSObject*> aGivenProto)
+{
+  return HTMLMenuElementBinding::Wrap(aCx, this, aGivenProto);
+}
+
+} // namespace dom
+} // namespace mozilla