mirror of
https://github.com/classilla/tenfourfox.git
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267 lines
6.5 KiB
C++
267 lines
6.5 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "mozilla/dom/HTMLMenuElement.h"
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#include "mozilla/BasicEvents.h"
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#include "mozilla/EventDispatcher.h"
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#include "mozilla/dom/HTMLMenuElementBinding.h"
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#include "mozilla/dom/HTMLMenuItemElement.h"
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#include "nsIMenuBuilder.h"
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#include "nsAttrValueInlines.h"
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#include "nsContentUtils.h"
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#include "nsIURI.h"
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#define HTMLMENUBUILDER_CONTRACTID "@mozilla.org/content/html-menu-builder;1"
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NS_IMPL_NS_NEW_HTML_ELEMENT(Menu)
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namespace mozilla {
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namespace dom {
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enum MenuType
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{
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MENU_TYPE_CONTEXT = 1,
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MENU_TYPE_TOOLBAR,
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MENU_TYPE_LIST
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};
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static const nsAttrValue::EnumTable kMenuTypeTable[] = {
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{ "context", MENU_TYPE_CONTEXT },
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{ "toolbar", MENU_TYPE_TOOLBAR },
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{ "list", MENU_TYPE_LIST },
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{ 0 }
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};
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static const nsAttrValue::EnumTable* kMenuDefaultType =
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&kMenuTypeTable[2];
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enum SeparatorType
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{
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ST_TRUE_INIT = -1,
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ST_FALSE = 0,
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ST_TRUE = 1
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};
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HTMLMenuElement::HTMLMenuElement(already_AddRefed<mozilla::dom::NodeInfo>& aNodeInfo)
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: nsGenericHTMLElement(aNodeInfo), mType(MENU_TYPE_LIST)
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{
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}
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HTMLMenuElement::~HTMLMenuElement()
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{
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}
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NS_IMPL_ISUPPORTS_INHERITED(HTMLMenuElement, nsGenericHTMLElement,
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nsIDOMHTMLMenuElement, nsIHTMLMenu)
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NS_IMPL_ELEMENT_CLONE(HTMLMenuElement)
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NS_IMPL_BOOL_ATTR(HTMLMenuElement, Compact, compact)
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NS_IMPL_ENUM_ATTR_DEFAULT_VALUE(HTMLMenuElement, Type, type,
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kMenuDefaultType->tag)
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NS_IMPL_STRING_ATTR(HTMLMenuElement, Label, label)
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NS_IMETHODIMP
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HTMLMenuElement::SendShowEvent()
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{
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NS_ENSURE_TRUE(nsContentUtils::IsCallerChrome(), NS_ERROR_DOM_SECURITY_ERR);
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nsCOMPtr<nsIDocument> document = GetComposedDoc();
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if (!document) {
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return NS_ERROR_FAILURE;
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}
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WidgetEvent event(true, eShow);
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event.mFlags.mBubbles = false;
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event.mFlags.mCancelable = false;
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nsCOMPtr<nsIPresShell> shell = document->GetShell();
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if (!shell) {
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return NS_ERROR_FAILURE;
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}
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RefPtr<nsPresContext> presContext = shell->GetPresContext();
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nsEventStatus status = nsEventStatus_eIgnore;
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EventDispatcher::Dispatch(static_cast<nsIContent*>(this), presContext,
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&event, nullptr, &status);
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return NS_OK;
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}
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NS_IMETHODIMP
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HTMLMenuElement::CreateBuilder(nsIMenuBuilder** _retval)
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{
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NS_ENSURE_TRUE(nsContentUtils::IsCallerChrome(), NS_ERROR_DOM_SECURITY_ERR);
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nsCOMPtr<nsIMenuBuilder> builder = CreateBuilder();
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builder.swap(*_retval);
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return NS_OK;
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}
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already_AddRefed<nsIMenuBuilder>
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HTMLMenuElement::CreateBuilder()
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{
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if (mType != MENU_TYPE_CONTEXT) {
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return nullptr;
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}
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nsCOMPtr<nsIMenuBuilder> builder = do_CreateInstance(HTMLMENUBUILDER_CONTRACTID);
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NS_WARN_IF_FALSE(builder, "No builder available");
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return builder.forget();
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}
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NS_IMETHODIMP
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HTMLMenuElement::Build(nsIMenuBuilder* aBuilder)
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{
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NS_ENSURE_TRUE(nsContentUtils::IsCallerChrome(), NS_ERROR_DOM_SECURITY_ERR);
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if (!aBuilder) {
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return NS_OK;
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}
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BuildSubmenu(EmptyString(), this, aBuilder);
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return NS_OK;
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}
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bool
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HTMLMenuElement::ParseAttribute(int32_t aNamespaceID,
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nsIAtom* aAttribute,
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const nsAString& aValue,
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nsAttrValue& aResult)
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{
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if (aNamespaceID == kNameSpaceID_None && aAttribute == nsGkAtoms::type) {
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bool success = aResult.ParseEnumValue(aValue, kMenuTypeTable,
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false);
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if (success) {
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mType = aResult.GetEnumValue();
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} else {
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mType = kMenuDefaultType->value;
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}
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return success;
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}
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return nsGenericHTMLElement::ParseAttribute(aNamespaceID, aAttribute, aValue,
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aResult);
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}
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void
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HTMLMenuElement::BuildSubmenu(const nsAString& aLabel,
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nsIContent* aContent,
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nsIMenuBuilder* aBuilder)
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{
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aBuilder->OpenContainer(aLabel);
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int8_t separator = ST_TRUE_INIT;
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TraverseContent(aContent, aBuilder, separator);
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if (separator == ST_TRUE) {
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aBuilder->UndoAddSeparator();
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}
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aBuilder->CloseContainer();
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}
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// static
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bool
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HTMLMenuElement::CanLoadIcon(nsIContent* aContent, const nsAString& aIcon)
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{
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if (aIcon.IsEmpty()) {
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return false;
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}
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nsIDocument* doc = aContent->OwnerDoc();
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nsCOMPtr<nsIURI> baseURI = aContent->GetBaseURI();
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nsCOMPtr<nsIURI> uri;
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nsContentUtils::NewURIWithDocumentCharset(getter_AddRefs(uri), aIcon, doc,
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baseURI);
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if (!uri) {
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return false;
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}
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return nsContentUtils::CanLoadImage(uri, aContent, doc,
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aContent->NodePrincipal());
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}
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void
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HTMLMenuElement::TraverseContent(nsIContent* aContent,
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nsIMenuBuilder* aBuilder,
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int8_t& aSeparator)
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{
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nsCOMPtr<nsIContent> child;
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for (child = aContent->GetFirstChild(); child;
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child = child->GetNextSibling()) {
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nsGenericHTMLElement* element = nsGenericHTMLElement::FromContent(child);
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if (!element) {
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continue;
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}
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if (child->IsHTMLElement(nsGkAtoms::menuitem)) {
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HTMLMenuItemElement* menuitem = HTMLMenuItemElement::FromContent(child);
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if (menuitem->IsHidden()) {
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continue;
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}
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nsAutoString label;
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menuitem->GetLabel(label);
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if (label.IsEmpty()) {
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continue;
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}
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nsAutoString icon;
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menuitem->GetIcon(icon);
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aBuilder->AddItemFor(menuitem, CanLoadIcon(child, icon));
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aSeparator = ST_FALSE;
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} else if (child->IsHTMLElement(nsGkAtoms::menu) && !element->IsHidden()) {
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if (child->HasAttr(kNameSpaceID_None, nsGkAtoms::label)) {
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nsAutoString label;
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child->GetAttr(kNameSpaceID_None, nsGkAtoms::label, label);
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BuildSubmenu(label, child, aBuilder);
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aSeparator = ST_FALSE;
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} else {
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AddSeparator(aBuilder, aSeparator);
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TraverseContent(child, aBuilder, aSeparator);
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AddSeparator(aBuilder, aSeparator);
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}
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}
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}
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}
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inline void
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HTMLMenuElement::AddSeparator(nsIMenuBuilder* aBuilder, int8_t& aSeparator)
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{
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if (aSeparator) {
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return;
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}
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aBuilder->AddSeparator();
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aSeparator = ST_TRUE;
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}
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JSObject*
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HTMLMenuElement::WrapNode(JSContext* aCx, JS::Handle<JSObject*> aGivenProto)
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{
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return HTMLMenuElementBinding::Wrap(aCx, this, aGivenProto);
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}
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} // namespace dom
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} // namespace mozilla
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