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gecko/dom/html/nsGenericHTMLElement.cpp

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/* -*- 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/ArrayUtils.h"
#include "mozilla/EventDispatcher.h"
#include "mozilla/EventListenerManager.h"
#include "mozilla/EventStateManager.h"
#include "mozilla/EventStates.h"
#include "mozilla/MouseEvents.h"
#include "mozilla/Likely.h"
#include "nscore.h"
#include "nsGenericHTMLElement.h"
#include "nsAttrValueInlines.h"
#include "nsCOMPtr.h"
#include "nsIAtom.h"
#include "nsQueryObject.h"
#include "nsIContentInlines.h"
#include "nsIContentViewer.h"
#include "mozilla/css/StyleRule.h"
#include "nsIDocument.h"
#include "nsIDocumentEncoder.h"
#include "nsIDOMHTMLDocument.h"
#include "nsIDOMAttr.h"
#include "nsIDOMDocumentFragment.h"
#include "nsIDOMHTMLElement.h"
#include "nsIDOMHTMLMenuElement.h"
#include "nsIDOMElementCSSInlineStyle.h"
#include "nsIDOMWindow.h"
#include "nsIDOMDocument.h"
#include "nsMappedAttributes.h"
#include "nsHTMLStyleSheet.h"
#include "nsIHTMLDocument.h"
#include "nsPIDOMWindow.h"
#include "nsIStyleRule.h"
#include "nsIURL.h"
#include "nsEscape.h"
#include "nsIFrameInlines.h"
#include "nsIScrollableFrame.h"
#include "nsView.h"
#include "nsViewManager.h"
#include "nsIWidget.h"
#include "nsRange.h"
#include "nsIPresShell.h"
#include "nsPresContext.h"
#include "nsIDocShell.h"
#include "nsNameSpaceManager.h"
#include "nsError.h"
#include "nsScriptLoader.h"
#include "nsRuleData.h"
#include "nsIPrincipal.h"
#include "nsContainerFrame.h"
#include "nsPresState.h"
#include "nsILayoutHistoryState.h"
#include "nsHTMLParts.h"
#include "nsContentUtils.h"
#include "mozilla/dom/DirectionalityUtils.h"
#include "nsString.h"
#include "nsUnicharUtils.h"
#include "nsGkAtoms.h"
#include "nsIDOMEvent.h"
#include "nsDOMCSSDeclaration.h"
#include "nsITextControlFrame.h"
#include "nsIForm.h"
#include "nsIFormControl.h"
#include "nsIDOMHTMLFormElement.h"
#include "mozilla/dom/HTMLFormElement.h"
#include "nsFocusManager.h"
#include "nsAttrValueOrString.h"
#include "mozilla/InternalMutationEvent.h"
#include "nsDOMStringMap.h"
#include "nsIEditor.h"
#include "nsIEditorIMESupport.h"
#include "nsLayoutUtils.h"
#include "mozAutoDocUpdate.h"
#include "nsHtml5Module.h"
#include "nsITextControlElement.h"
#include "mozilla/dom/Element.h"
#include "HTMLFieldSetElement.h"
#include "HTMLMenuElement.h"
#include "nsDOMMutationObserver.h"
#include "mozilla/Preferences.h"
#include "mozilla/dom/FromParser.h"
#include "mozilla/dom/Link.h"
#include "mozilla/dom/UndoManager.h"
#include "mozilla/BloomFilter.h"
#include "HTMLPropertiesCollection.h"
#include "nsVariant.h"
#include "nsDOMSettableTokenList.h"
#include "nsThreadUtils.h"
#include "nsTextFragment.h"
#include "mozilla/dom/BindingUtils.h"
#include "mozilla/dom/TouchEvent.h"
#include "mozilla/ErrorResult.h"
#include "nsHTMLDocument.h"
#include "nsGlobalWindow.h"
#include "mozilla/dom/HTMLBodyElement.h"
#include "imgIContainer.h"
using namespace mozilla;
using namespace mozilla::dom;
/**
* nsAutoFocusEvent is used to dispatch a focus event when a
* nsGenericHTMLFormElement is binded to the tree with the autofocus attribute
* enabled.
*/
class nsAutoFocusEvent : public nsRunnable
{
public:
explicit nsAutoFocusEvent(nsGenericHTMLFormElement* aElement) : mElement(aElement) {}
NS_IMETHOD Run() {
nsFocusManager* fm = nsFocusManager::GetFocusManager();
if (!fm) {
return NS_ERROR_NULL_POINTER;
}
nsIDocument* document = mElement->OwnerDoc();
nsPIDOMWindow* window = document->GetWindow();
if (!window) {
return NS_OK;
}
// Trying to found the top window (equivalent to window.top).
nsCOMPtr<nsIDOMWindow> top;
window->GetTop(getter_AddRefs(top));
if (top) {
window = static_cast<nsPIDOMWindow*>(top.get());
}
if (window->GetFocusedNode()) {
return NS_OK;
}
nsCOMPtr<nsIDocument> topDoc = window->GetExtantDoc();
if (topDoc && topDoc->GetReadyStateEnum() == nsIDocument::READYSTATE_COMPLETE) {
return NS_OK;
}
// If something is focused in the same document, ignore autofocus.
if (!fm->GetFocusedContent() ||
fm->GetFocusedContent()->OwnerDoc() != document) {
mozilla::ErrorResult rv;
mElement->Focus(rv);
return rv.StealNSResult();
}
return NS_OK;
}
private:
// NOTE: nsGenericHTMLFormElement is saved as a nsGenericHTMLElement
// because AddRef/Release are ambiguous with nsGenericHTMLFormElement
// and Focus() is declared (and defined) in nsGenericHTMLElement class.
nsRefPtr<nsGenericHTMLElement> mElement;
};
class nsGenericHTMLElementTearoff : public nsIDOMElementCSSInlineStyle
{
virtual ~nsGenericHTMLElementTearoff()
{
}
NS_DECL_CYCLE_COLLECTING_ISUPPORTS
explicit nsGenericHTMLElementTearoff(nsGenericHTMLElement* aElement)
: mElement(aElement)
{
}
NS_IMETHOD GetStyle(nsIDOMCSSStyleDeclaration** aStyle) override
{
NS_ADDREF(*aStyle = mElement->Style());
return NS_OK;
}
NS_DECL_CYCLE_COLLECTION_CLASS_AMBIGUOUS(nsGenericHTMLElementTearoff,
nsIDOMElementCSSInlineStyle)
private:
nsRefPtr<nsGenericHTMLElement> mElement;
};
NS_IMPL_CYCLE_COLLECTION(nsGenericHTMLElementTearoff, mElement)
NS_IMPL_CYCLE_COLLECTING_ADDREF(nsGenericHTMLElementTearoff)
NS_IMPL_CYCLE_COLLECTING_RELEASE(nsGenericHTMLElementTearoff)
NS_INTERFACE_TABLE_HEAD(nsGenericHTMLElementTearoff)
NS_INTERFACE_TABLE_INHERITED(nsGenericHTMLElementTearoff,
nsIDOMElementCSSInlineStyle)
NS_INTERFACE_TABLE_TO_MAP_SEGUE_CYCLE_COLLECTION(nsGenericHTMLElementTearoff)
NS_INTERFACE_MAP_END_AGGREGATED(mElement)
NS_IMPL_ADDREF_INHERITED(nsGenericHTMLElement, nsGenericHTMLElementBase)
NS_IMPL_RELEASE_INHERITED(nsGenericHTMLElement, nsGenericHTMLElementBase)
NS_INTERFACE_MAP_BEGIN(nsGenericHTMLElement)
NS_INTERFACE_MAP_ENTRY(nsIDOMHTMLElement)
NS_INTERFACE_MAP_ENTRY(nsIDOMElement)
NS_INTERFACE_MAP_ENTRY(nsIDOMNode)
NS_INTERFACE_MAP_ENTRY_TEAROFF(nsIDOMElementCSSInlineStyle,
new nsGenericHTMLElementTearoff(this))
NS_INTERFACE_MAP_END_INHERITING(nsGenericHTMLElementBase)
nsresult
nsGenericHTMLElement::CopyInnerTo(Element* aDst)
{
nsresult rv;
int32_t i, count = GetAttrCount();
for (i = 0; i < count; ++i) {
const nsAttrName *name = mAttrsAndChildren.AttrNameAt(i);
const nsAttrValue *value = mAttrsAndChildren.AttrAt(i);
nsAutoString valStr;
value->ToString(valStr);
if (name->Equals(nsGkAtoms::style, kNameSpaceID_None) &&
value->Type() == nsAttrValue::eCSSStyleRule) {
// We can't just set this as a string, because that will fail
// to reparse the string into style data until the node is
// inserted into the document. Clone the Rule instead.
nsRefPtr<mozilla::css::Rule> ruleClone = value->GetCSSStyleRuleValue()->Clone();
nsRefPtr<mozilla::css::StyleRule> styleRule = do_QueryObject(ruleClone);
NS_ENSURE_TRUE(styleRule, NS_ERROR_UNEXPECTED);
rv = aDst->SetInlineStyleRule(styleRule, &valStr, false);
NS_ENSURE_SUCCESS(rv, rv);
continue;
}
rv = aDst->SetAttr(name->NamespaceID(), name->LocalName(),
name->GetPrefix(), valStr, false);
NS_ENSURE_SUCCESS(rv, rv);
}
return NS_OK;
}
already_AddRefed<nsDOMStringMap>
nsGenericHTMLElement::Dataset()
{
nsDOMSlots *slots = DOMSlots();
if (!slots->mDataset) {
// mDataset is a weak reference so assignment will not AddRef.
// AddRef is called before returning the pointer.
slots->mDataset = new nsDOMStringMap(this);
}
nsRefPtr<nsDOMStringMap> ret = slots->mDataset;
return ret.forget();
}
NS_IMETHODIMP
nsGenericHTMLElement::GetDataset(nsISupports** aDataset)
{
*aDataset = Dataset().take();
return NS_OK;
}
nsresult
nsGenericHTMLElement::ClearDataset()
{
nsDOMSlots *slots = GetExistingDOMSlots();
NS_ASSERTION(slots && slots->mDataset,
"Slots should exist and dataset should not be null.");
slots->mDataset = nullptr;
return NS_OK;
}
static const nsAttrValue::EnumTable kDirTable[] = {
{ "ltr", eDir_LTR },
{ "rtl", eDir_RTL },
{ "auto", eDir_Auto },
{ 0 }
};
void
nsGenericHTMLElement::GetAccessKeyLabel(nsString& aLabel)
{
nsAutoString suffix;
GetAccessKey(suffix);
if (!suffix.IsEmpty()) {
EventStateManager::GetAccessKeyLabelPrefix(this, aLabel);
aLabel.Append(suffix);
}
}
static bool IS_TABLE_CELL(nsIAtom* frameType) {
return nsGkAtoms::tableCellFrame == frameType ||
nsGkAtoms::bcTableCellFrame == frameType;
}
static bool
IsOffsetParent(nsIFrame* aFrame)
{
nsIAtom* frameType = aFrame->GetType();
if (IS_TABLE_CELL(frameType) || frameType == nsGkAtoms::tableFrame) {
// Per the IDL for Element, only td, th, and table are acceptable offsetParents
// apart from body or positioned elements; we need to check the content type as
// well as the frame type so we ignore anonymous tables created by an element
// with display: table-cell with no actual table
nsIContent* content = aFrame->GetContent();
return content->IsAnyOfHTMLElements(nsGkAtoms::table,
nsGkAtoms::td,
nsGkAtoms::th);
}
return false;
}
Element*
nsGenericHTMLElement::GetOffsetRect(CSSIntRect& aRect)
{
aRect = CSSIntRect();
nsIFrame* frame = GetStyledFrame();
if (!frame) {
return nullptr;
}
nsIFrame* parent = frame->GetParent();
nsPoint origin(0, 0);
if (parent && parent->GetType() == nsGkAtoms::tableOuterFrame &&
frame->GetType() == nsGkAtoms::tableFrame) {
origin = parent->GetPositionIgnoringScrolling();
parent = parent->GetParent();
}
nsIContent* offsetParent = nullptr;
Element* docElement = GetComposedDoc()->GetRootElement();
nsIContent* content = frame->GetContent();
if (content && (content->IsHTMLElement(nsGkAtoms::body) ||
content == docElement)) {
parent = frame;
}
else {
const bool isPositioned = frame->IsAbsPosContaininingBlock();
const bool isAbsolutelyPositioned = frame->IsAbsolutelyPositioned();
origin += frame->GetPositionIgnoringScrolling();
for ( ; parent ; parent = parent->GetParent()) {
content = parent->GetContent();
// Stop at the first ancestor that is positioned.
if (parent->IsAbsPosContaininingBlock()) {
offsetParent = content;
break;
}
// Add the parent's origin to our own to get to the
// right coordinate system.
const bool isOffsetParent = !isPositioned && IsOffsetParent(parent);
if (!isAbsolutelyPositioned && !isOffsetParent) {
origin += parent->GetPositionIgnoringScrolling();
}
if (content) {
// If we've hit the document element, break here.
if (content == docElement) {
break;
}
// Break if the ancestor frame type makes it suitable as offset parent
// and this element is *not* positioned or if we found the body element.
if (isOffsetParent || content->IsHTMLElement(nsGkAtoms::body)) {
offsetParent = content;
break;
}
}
}
if (isAbsolutelyPositioned && !offsetParent) {
// If this element is absolutely positioned, but we don't have
// an offset parent it means this element is an absolutely
// positioned child that's not nested inside another positioned
// element, in this case the element's frame's parent is the
// frame for the HTML element so we fail to find the body in the
// parent chain. We want the offset parent in this case to be
// the body, so we just get the body element from the document.
nsCOMPtr<nsIDOMHTMLDocument> html_doc(do_QueryInterface(GetComposedDoc()));
if (html_doc) {
offsetParent = static_cast<nsHTMLDocument*>(html_doc.get())->GetBody();
}
}
}
// Subtract the parent border unless it uses border-box sizing.
if (parent &&
parent->StylePosition()->mBoxSizing != NS_STYLE_BOX_SIZING_BORDER) {
const nsStyleBorder* border = parent->StyleBorder();
origin.x -= border->GetComputedBorderWidth(NS_SIDE_LEFT);
origin.y -= border->GetComputedBorderWidth(NS_SIDE_TOP);
}
// XXX We should really consider subtracting out padding for
// content-box sizing, but we should see what IE does....
// Get the union of all rectangles in this and continuation frames.
// It doesn't really matter what we use as aRelativeTo here, since
// we only care about the size. We just have to use something non-null.
nsRect rcFrame = nsLayoutUtils::GetAllInFlowRectsUnion(frame, frame);
rcFrame.MoveTo(origin);
aRect = CSSIntRect::FromAppUnitsRounded(rcFrame);
return offsetParent ? offsetParent->AsElement() : nullptr;
}
NS_IMETHODIMP
nsGenericHTMLElement::InsertAdjacentHTML(const nsAString& aPosition,
const nsAString& aText)
{
ErrorResult rv;
Element::InsertAdjacentHTML(aPosition, aText, rv);
return rv.StealNSResult();
}
bool
nsGenericHTMLElement::Spellcheck()
{
// Has the state has been explicitly set?
nsIContent* node;
for (node = this; node; node = node->GetParent()) {
if (node->IsHTMLElement()) {
static nsIContent::AttrValuesArray strings[] =
{&nsGkAtoms::_true, &nsGkAtoms::_false, nullptr};
switch (node->FindAttrValueIn(kNameSpaceID_None, nsGkAtoms::spellcheck,
strings, eCaseMatters)) {
case 0: // spellcheck = "true"
return true;
case 1: // spellcheck = "false"
return false;
}
}
}
// contenteditable/designMode are spellchecked by default
if (IsEditable()) {
return true;
}
// Is this a chrome element?
if (nsContentUtils::IsChromeDoc(OwnerDoc())) {
return false; // Not spellchecked by default
}
// Anything else that's not a form control is not spellchecked by default
nsCOMPtr<nsIFormControl> formControl = do_QueryObject(this);
if (!formControl) {
return false; // Not spellchecked by default
}
// Is this a multiline plaintext input?
int32_t controlType = formControl->GetType();
if (controlType == NS_FORM_TEXTAREA) {
return true; // Spellchecked by default
}
// Is this anything other than an input text?
// Other inputs are not spellchecked.
if (controlType != NS_FORM_INPUT_TEXT) {
return false; // Not spellchecked by default
}
// Does the user want input text spellchecked by default?
// NOTE: Do not reflect a pref value of 0 back to the DOM getter.
// The web page should not know if the user has disabled spellchecking.
// We'll catch this in the editor itself.
int32_t spellcheckLevel = Preferences::GetInt("layout.spellcheckDefault", 1);
return spellcheckLevel == 2; // "Spellcheck multi- and single-line"
}
bool
nsGenericHTMLElement::InNavQuirksMode(nsIDocument* aDoc)
{
return aDoc && aDoc->GetCompatibilityMode() == eCompatibility_NavQuirks;
}
void
nsGenericHTMLElement::UpdateEditableState(bool aNotify)
{
// XXX Should we do this only when in a document?
ContentEditableTristate value = GetContentEditableValue();
if (value != eInherit) {
DoSetEditableFlag(!!value, aNotify);
return;
}
nsStyledElement::UpdateEditableState(aNotify);
}
EventStates
nsGenericHTMLElement::IntrinsicState() const
{
EventStates state = nsGenericHTMLElementBase::IntrinsicState();
if (GetDirectionality() == eDir_RTL) {
state |= NS_EVENT_STATE_RTL;
state &= ~NS_EVENT_STATE_LTR;
} else { // at least for HTML, directionality is exclusively LTR or RTL
NS_ASSERTION(GetDirectionality() == eDir_LTR,
"HTML element's directionality must be either RTL or LTR");
state |= NS_EVENT_STATE_LTR;
state &= ~NS_EVENT_STATE_RTL;
}
return state;
}
uint32_t
nsGenericHTMLElement::EditableInclusiveDescendantCount()
{
bool isEditable = IsInUncomposedDoc() && HasFlag(NODE_IS_EDITABLE) &&
GetContentEditableValue() == eTrue;
return EditableDescendantCount() + isEditable;
}
nsresult
nsGenericHTMLElement::BindToTree(nsIDocument* aDocument, nsIContent* aParent,
nsIContent* aBindingParent,
bool aCompileEventHandlers)
{
nsresult rv = nsGenericHTMLElementBase::BindToTree(aDocument, aParent,
aBindingParent,
aCompileEventHandlers);
NS_ENSURE_SUCCESS(rv, rv);
if (aDocument) {
if (HasProperties()) {
HTMLPropertiesCollection* properties =
static_cast<HTMLPropertiesCollection*>(GetProperty(nsGkAtoms::microdataProperties));
if (properties) {
properties->SetDocument(aDocument);
}
}
RegAccessKey();
if (HasName()) {
aDocument->
AddToNameTable(this, GetParsedAttr(nsGkAtoms::name)->GetAtomValue());
}
if (HasFlag(NODE_IS_EDITABLE) && GetContentEditableValue() == eTrue) {
nsCOMPtr<nsIHTMLDocument> htmlDocument = do_QueryInterface(aDocument);
if (htmlDocument) {
htmlDocument->ChangeContentEditableCount(this, +1);
}
}
}
return rv;
}
void
nsGenericHTMLElement::UnbindFromTree(bool aDeep, bool aNullParent)
{
if (IsInDoc()) {
UnregAccessKey();
}
if(HasProperties()) {
HTMLPropertiesCollection* properties =
static_cast<HTMLPropertiesCollection*>(GetProperty(nsGkAtoms::microdataProperties));
if (properties) {
properties->SetDocument(nullptr);
}
}
RemoveFromNameTable();
if (GetContentEditableValue() == eTrue) {
//XXXsmaug Fix this for Shadow DOM, bug 1066965.
nsCOMPtr<nsIHTMLDocument> htmlDocument = do_QueryInterface(GetUncomposedDoc());
if (htmlDocument) {
htmlDocument->ChangeContentEditableCount(this, -1);
}
}
nsStyledElement::UnbindFromTree(aDeep, aNullParent);
}
HTMLFormElement*
nsGenericHTMLElement::FindAncestorForm(HTMLFormElement* aCurrentForm)
{
NS_ASSERTION(!HasAttr(kNameSpaceID_None, nsGkAtoms::form) ||
IsHTMLElement(nsGkAtoms::img),
"FindAncestorForm should not be called if @form is set!");
// Make sure we don't end up finding a form that's anonymous from
// our point of view.
nsIContent* bindingParent = GetBindingParent();
nsIContent* content = this;
while (content != bindingParent && content) {
// If the current ancestor is a form, return it as our form
if (content->IsHTMLElement(nsGkAtoms::form)) {
#ifdef DEBUG
if (!nsContentUtils::IsInSameAnonymousTree(this, content)) {
// It's possible that we started unbinding at |content| or
// some ancestor of it, and |content| and |this| used to all be
// anonymous. Check for this the hard way.
for (nsIContent* child = this; child != content;
child = child->GetParent()) {
NS_ASSERTION(child->GetParent()->IndexOf(child) != -1,
"Walked too far?");
}
}
#endif
return static_cast<HTMLFormElement*>(content);
}
nsIContent *prevContent = content;
content = prevContent->GetParent();
if (!content && aCurrentForm) {
// We got to the root of the subtree we're in, and we're being removed
// from the DOM (the only time we get into this method with a non-null
// aCurrentForm). Check whether aCurrentForm is in the same subtree. If
// it is, we want to return aCurrentForm, since this case means that
// we're one of those inputs-in-a-table that have a hacked mForm pointer
// and a subtree containing both us and the form got removed from the
// DOM.
if (nsContentUtils::ContentIsDescendantOf(aCurrentForm, prevContent)) {
return aCurrentForm;
}
}
}
return nullptr;
}
bool
nsGenericHTMLElement::CheckHandleEventForAnchorsPreconditions(
EventChainVisitor& aVisitor)
{
NS_PRECONDITION(nsCOMPtr<Link>(do_QueryObject(this)),
"should be called only when |this| implements |Link|");
if (!aVisitor.mPresContext) {
// We need a pres context to do link stuff. Some events (e.g. mutation
// events) don't have one.
// XXX: ideally, shouldn't we be able to do what we need without one?
return false;
}
//Need to check if we hit an imagemap area and if so see if we're handling
//the event on that map or on a link farther up the tree. If we're on a
//link farther up, do nothing.
nsCOMPtr<nsIContent> target = aVisitor.mPresContext->EventStateManager()->
GetEventTargetContent(aVisitor.mEvent);
return !target || !target->IsHTMLElement(nsGkAtoms::area) ||
IsHTMLElement(nsGkAtoms::area);
}
nsresult
nsGenericHTMLElement::PreHandleEventForAnchors(EventChainPreVisitor& aVisitor)
{
nsresult rv = nsGenericHTMLElementBase::PreHandleEvent(aVisitor);
NS_ENSURE_SUCCESS(rv, rv);
if (!CheckHandleEventForAnchorsPreconditions(aVisitor)) {
return NS_OK;
}
return PreHandleEventForLinks(aVisitor);
}
nsresult
nsGenericHTMLElement::PostHandleEventForAnchors(EventChainPostVisitor& aVisitor)
{
if (!CheckHandleEventForAnchorsPreconditions(aVisitor)) {
return NS_OK;
}
return PostHandleEventForLinks(aVisitor);
}
bool
nsGenericHTMLElement::IsHTMLLink(nsIURI** aURI) const
{
NS_PRECONDITION(aURI, "Must provide aURI out param");
*aURI = GetHrefURIForAnchors().take();
// We promise out param is non-null if we return true, so base rv on it
return *aURI != nullptr;
}
already_AddRefed<nsIURI>
nsGenericHTMLElement::GetHrefURIForAnchors() const
{
// This is used by the three Link implementations and
// nsHTMLStyleElement.
// Get href= attribute (relative URI).
// We use the nsAttrValue's copy of the URI string to avoid copying.
nsCOMPtr<nsIURI> uri;
GetURIAttr(nsGkAtoms::href, nullptr, getter_AddRefs(uri));
return uri.forget();
}
nsresult
nsGenericHTMLElement::AfterSetAttr(int32_t aNamespaceID, nsIAtom* aName,
const nsAttrValue* aValue, bool aNotify)
{
if (aNamespaceID == kNameSpaceID_None) {
if (IsEventAttributeName(aName) && aValue) {
MOZ_ASSERT(aValue->Type() == nsAttrValue::eString,
"Expected string value for script body");
nsresult rv = SetEventHandler(aName, aValue->GetStringValue());
NS_ENSURE_SUCCESS(rv, rv);
}
else if (aNotify && aName == nsGkAtoms::spellcheck) {
SyncEditorsOnSubtree(this);
}
else if (aName == nsGkAtoms::dir) {
Directionality dir = eDir_LTR;
if (aValue && aValue->Type() == nsAttrValue::eEnum) {
SetHasValidDir();
Directionality dirValue = (Directionality)aValue->GetEnumValue();
if (dirValue == eDir_Auto) {
SetHasDirAuto();
ClearHasFixedDir();
} else {
dir = dirValue;
SetDirectionality(dir, aNotify);
ClearHasDirAuto();
SetHasFixedDir();
}
} else {
ClearHasValidDir();
ClearHasFixedDir();
if (NodeInfo()->Equals(nsGkAtoms::bdi)) {
SetHasDirAuto();
} else {
ClearHasDirAuto();
dir = RecomputeDirectionality(this, aNotify);
}
}
SetDirectionalityOnDescendants(this, dir, aNotify);
}
}
return nsGenericHTMLElementBase::AfterSetAttr(aNamespaceID, aName,
aValue, aNotify);
}
EventListenerManager*
nsGenericHTMLElement::GetEventListenerManagerForAttr(nsIAtom* aAttrName,
bool* aDefer)
{
// Attributes on the body and frameset tags get set on the global object
if ((mNodeInfo->Equals(nsGkAtoms::body) ||
mNodeInfo->Equals(nsGkAtoms::frameset)) &&
// We only forward some event attributes from body/frameset to window
(0
#define EVENT(name_, id_, type_, struct_) /* nothing */
#define FORWARDED_EVENT(name_, id_, type_, struct_) \
|| nsGkAtoms::on##name_ == aAttrName
#define WINDOW_EVENT FORWARDED_EVENT
#include "mozilla/EventNameList.h" // IWYU pragma: keep
#undef WINDOW_EVENT
#undef FORWARDED_EVENT
#undef EVENT
)
) {
nsPIDOMWindow *win;
// If we have a document, and it has a window, add the event
// listener on the window (the inner window). If not, proceed as
// normal.
// XXXbz sXBL/XBL2 issue: should we instead use GetComposedDoc() here,
// override BindToTree for those classes and munge event listeners there?
nsIDocument *document = OwnerDoc();
*aDefer = false;
if ((win = document->GetInnerWindow())) {
nsCOMPtr<EventTarget> piTarget(do_QueryInterface(win));
return piTarget->GetOrCreateListenerManager();
}
return nullptr;
}
return nsGenericHTMLElementBase::GetEventListenerManagerForAttr(aAttrName,
aDefer);
}
#define EVENT(name_, id_, type_, struct_) /* nothing; handled by nsINode */
#define FORWARDED_EVENT(name_, id_, type_, struct_) \
EventHandlerNonNull* \
nsGenericHTMLElement::GetOn##name_() \
{ \
if (IsAnyOfHTMLElements(nsGkAtoms::body, nsGkAtoms::frameset)) { \
/* XXXbz note to self: add tests for this! */ \
nsPIDOMWindow* win = OwnerDoc()->GetInnerWindow(); \
if (win) { \
nsCOMPtr<nsISupports> supports = do_QueryInterface(win); \
nsGlobalWindow* globalWin = nsGlobalWindow::FromSupports(supports); \
return globalWin->GetOn##name_(); \
} \
return nullptr; \
} \
\
return nsINode::GetOn##name_(); \
} \
void \
nsGenericHTMLElement::SetOn##name_(EventHandlerNonNull* handler) \
{ \
if (IsAnyOfHTMLElements(nsGkAtoms::body, nsGkAtoms::frameset)) { \
nsPIDOMWindow* win = OwnerDoc()->GetInnerWindow(); \
if (!win) { \
return; \
} \
\
nsCOMPtr<nsISupports> supports = do_QueryInterface(win); \
nsGlobalWindow* globalWin = nsGlobalWindow::FromSupports(supports); \
return globalWin->SetOn##name_(handler); \
} \
\
return nsINode::SetOn##name_(handler); \
}
#define ERROR_EVENT(name_, id_, type_, struct_) \
already_AddRefed<EventHandlerNonNull> \
nsGenericHTMLElement::GetOn##name_() \
{ \
if (IsAnyOfHTMLElements(nsGkAtoms::body, nsGkAtoms::frameset)) { \
/* XXXbz note to self: add tests for this! */ \
nsPIDOMWindow* win = OwnerDoc()->GetInnerWindow(); \
if (win) { \
nsCOMPtr<nsISupports> supports = do_QueryInterface(win); \
nsGlobalWindow* globalWin = nsGlobalWindow::FromSupports(supports); \
OnErrorEventHandlerNonNull* errorHandler = globalWin->GetOn##name_(); \
if (errorHandler) { \
nsRefPtr<EventHandlerNonNull> handler = \
new EventHandlerNonNull(errorHandler); \
return handler.forget(); \
} \
} \
return nullptr; \
} \
\
nsRefPtr<EventHandlerNonNull> handler = nsINode::GetOn##name_(); \
return handler.forget(); \
} \
void \
nsGenericHTMLElement::SetOn##name_(EventHandlerNonNull* handler) \
{ \
if (IsAnyOfHTMLElements(nsGkAtoms::body, nsGkAtoms::frameset)) { \
nsPIDOMWindow* win = OwnerDoc()->GetInnerWindow(); \
if (!win) { \
return; \
} \
\
nsCOMPtr<nsISupports> supports = do_QueryInterface(win); \
nsGlobalWindow* globalWin = nsGlobalWindow::FromSupports(supports); \
nsRefPtr<OnErrorEventHandlerNonNull> errorHandler; \
if (handler) { \
errorHandler = new OnErrorEventHandlerNonNull(handler); \
} \
return globalWin->SetOn##name_(errorHandler); \
} \
\
return nsINode::SetOn##name_(handler); \
}
#include "mozilla/EventNameList.h" // IWYU pragma: keep
#undef ERROR_EVENT
#undef FORWARDED_EVENT
#undef EVENT
nsresult
nsGenericHTMLElement::SetAttr(int32_t aNameSpaceID, nsIAtom* aName,
nsIAtom* aPrefix, const nsAString& aValue,
bool aNotify)
{
bool contentEditable = aNameSpaceID == kNameSpaceID_None &&
aName == nsGkAtoms::contenteditable;
bool undoScope = aNameSpaceID == kNameSpaceID_None &&
aName == nsGkAtoms::undoscope;
bool accessKey = aName == nsGkAtoms::accesskey &&
aNameSpaceID == kNameSpaceID_None;
int32_t change = 0;
if (contentEditable) {
change = GetContentEditableValue() == eTrue ? -1 : 0;
SetMayHaveContentEditableAttr();
}
if (accessKey) {
UnregAccessKey();
}
nsresult rv = nsStyledElement::SetAttr(aNameSpaceID, aName, aPrefix, aValue,
aNotify);
NS_ENSURE_SUCCESS(rv, rv);
if (contentEditable) {
if (aValue.IsEmpty() || aValue.LowerCaseEqualsLiteral("true")) {
change += 1;
}
ChangeEditableState(change);
}
if (undoScope) {
rv = SetUndoScopeInternal(true);
NS_ENSURE_SUCCESS(rv, rv);
}
if (accessKey && !aValue.IsEmpty()) {
SetFlags(NODE_HAS_ACCESSKEY);
RegAccessKey();
}
return NS_OK;
}
nsresult
nsGenericHTMLElement::UnsetAttr(int32_t aNameSpaceID, nsIAtom* aAttribute,
bool aNotify)
{
bool contentEditable = false;
int32_t contentEditableChange = 0;
// Check for event handlers
if (aNameSpaceID == kNameSpaceID_None) {
if (aAttribute == nsGkAtoms::name) {
// Have to do this before clearing flag. See RemoveFromNameTable
RemoveFromNameTable();
ClearHasName();
}
else if (aAttribute == nsGkAtoms::contenteditable) {
contentEditable = true;
contentEditableChange = GetContentEditableValue() == eTrue ? -1 : 0;
}
else if (aAttribute == nsGkAtoms::undoscope) {
nsresult rv = SetUndoScopeInternal(false);
NS_ENSURE_SUCCESS(rv, rv);
}
else if (aAttribute == nsGkAtoms::accesskey) {
// Have to unregister before clearing flag. See UnregAccessKey
UnregAccessKey();
UnsetFlags(NODE_HAS_ACCESSKEY);
}
else if (IsEventAttributeName(aAttribute)) {
if (EventListenerManager* manager = GetExistingListenerManager()) {
manager->RemoveEventHandler(aAttribute, EmptyString());
}
}
}
nsresult rv = nsGenericHTMLElementBase::UnsetAttr(aNameSpaceID, aAttribute,
aNotify);
NS_ENSURE_SUCCESS(rv, rv);
if (contentEditable) {
ChangeEditableState(contentEditableChange);
}
return NS_OK;
}
void
nsGenericHTMLElement::GetBaseTarget(nsAString& aBaseTarget) const
{
OwnerDoc()->GetBaseTarget(aBaseTarget);
}
//----------------------------------------------------------------------
bool
nsGenericHTMLElement::ParseAttribute(int32_t aNamespaceID,
nsIAtom* aAttribute,
const nsAString& aValue,
nsAttrValue& aResult)
{
if (aNamespaceID == kNameSpaceID_None) {
if (aAttribute == nsGkAtoms::dir) {
return aResult.ParseEnumValue(aValue, kDirTable, false);
}
if (aAttribute == nsGkAtoms::tabindex) {
return aResult.ParseIntValue(aValue);
}
if (aAttribute == nsGkAtoms::referrer) {
return ParseReferrerAttribute(aValue, aResult);
}
if (aAttribute == nsGkAtoms::name) {
// Store name as an atom. name="" means that the element has no name,
// not that it has an emptystring as the name.
RemoveFromNameTable();
if (aValue.IsEmpty()) {
ClearHasName();
return false;
}
aResult.ParseAtom(aValue);
if (CanHaveName(NodeInfo()->NameAtom())) {
SetHasName();
AddToNameTable(aResult.GetAtomValue());
}
return true;
}
if (aAttribute == nsGkAtoms::contenteditable) {
aResult.ParseAtom(aValue);
return true;
}
if (aAttribute == nsGkAtoms::itemref ||
aAttribute == nsGkAtoms::itemprop ||
aAttribute == nsGkAtoms::itemtype ||
aAttribute == nsGkAtoms::rel) {
aResult.ParseAtomArray(aValue);
return true;
}
}
return nsGenericHTMLElementBase::ParseAttribute(aNamespaceID, aAttribute,
aValue, aResult);
}
bool
nsGenericHTMLElement::ParseBackgroundAttribute(int32_t aNamespaceID,
nsIAtom* aAttribute,
const nsAString& aValue,
nsAttrValue& aResult)
{
if (aNamespaceID == kNameSpaceID_None &&
aAttribute == nsGkAtoms::background &&
!aValue.IsEmpty()) {
// Resolve url to an absolute url
nsIDocument* doc = OwnerDoc();
nsCOMPtr<nsIURI> baseURI = GetBaseURI();
nsCOMPtr<nsIURI> uri;
nsresult rv = nsContentUtils::NewURIWithDocumentCharset(
getter_AddRefs(uri), aValue, doc, baseURI);
if (NS_FAILED(rv)) {
return false;
}
nsString value(aValue);
nsRefPtr<nsStringBuffer> buffer = nsCSSValue::BufferFromString(value);
if (MOZ_UNLIKELY(!buffer)) {
return false;
}
mozilla::css::URLValue *url =
new mozilla::css::URLValue(uri, buffer, doc->GetDocumentURI(),
NodePrincipal());
aResult.SetTo(url, &aValue);
return true;
}
return false;
}
bool
nsGenericHTMLElement::IsAttributeMapped(const nsIAtom* aAttribute) const
{
static const MappedAttributeEntry* const map[] = {
sCommonAttributeMap
};
return FindAttributeDependence(aAttribute, map);
}
nsMapRuleToAttributesFunc
nsGenericHTMLElement::GetAttributeMappingFunction() const
{
return &MapCommonAttributesInto;
}
nsIFormControlFrame*
nsGenericHTMLElement::GetFormControlFrame(bool aFlushFrames)
{
if (aFlushFrames && IsInComposedDoc()) {
// Cause a flush of the frames, so we get up-to-date frame information
GetComposedDoc()->FlushPendingNotifications(Flush_Frames);
}
nsIFrame* frame = GetPrimaryFrame();
if (frame) {
nsIFormControlFrame* form_frame = do_QueryFrame(frame);
if (form_frame) {
return form_frame;
}
// If we have generated content, the primary frame will be a
// wrapper frame.. out real frame will be in its child list.
for (frame = frame->GetFirstPrincipalChild();
frame;
frame = frame->GetNextSibling()) {
form_frame = do_QueryFrame(frame);
if (form_frame) {
return form_frame;
}
}
}
return nullptr;
}
nsPresContext*
nsGenericHTMLElement::GetPresContext(PresContextFor aFor)
{
// Get the document
nsIDocument* doc = (aFor == eForComposedDoc) ?
GetComposedDoc() : GetUncomposedDoc();
if (doc) {
// Get presentation shell.
nsIPresShell *presShell = doc->GetShell();
if (presShell) {
return presShell->GetPresContext();
}
}
return nullptr;
}
static const nsAttrValue::EnumTable kDivAlignTable[] = {
{ "left", NS_STYLE_TEXT_ALIGN_MOZ_LEFT },
{ "right", NS_STYLE_TEXT_ALIGN_MOZ_RIGHT },
{ "center", NS_STYLE_TEXT_ALIGN_MOZ_CENTER },
{ "middle", NS_STYLE_TEXT_ALIGN_MOZ_CENTER },
{ "justify", NS_STYLE_TEXT_ALIGN_JUSTIFY },
{ 0 }
};
static const nsAttrValue::EnumTable kFrameborderTable[] = {
{ "yes", NS_STYLE_FRAME_YES },
{ "no", NS_STYLE_FRAME_NO },
{ "1", NS_STYLE_FRAME_1 },
{ "0", NS_STYLE_FRAME_0 },
{ 0 }
};
static const nsAttrValue::EnumTable kScrollingTable[] = {
{ "yes", NS_STYLE_FRAME_YES },
{ "no", NS_STYLE_FRAME_NO },
{ "on", NS_STYLE_FRAME_ON },
{ "off", NS_STYLE_FRAME_OFF },
{ "scroll", NS_STYLE_FRAME_SCROLL },
{ "noscroll", NS_STYLE_FRAME_NOSCROLL },
{ "auto", NS_STYLE_FRAME_AUTO },
{ 0 }
};
static const nsAttrValue::EnumTable kTableVAlignTable[] = {
{ "top", NS_STYLE_VERTICAL_ALIGN_TOP },
{ "middle", NS_STYLE_VERTICAL_ALIGN_MIDDLE },
{ "bottom", NS_STYLE_VERTICAL_ALIGN_BOTTOM },
{ "baseline",NS_STYLE_VERTICAL_ALIGN_BASELINE },
{ 0 }
};
bool
nsGenericHTMLElement::ParseAlignValue(const nsAString& aString,
nsAttrValue& aResult)
{
static const nsAttrValue::EnumTable kAlignTable[] = {
{ "left", NS_STYLE_TEXT_ALIGN_LEFT },
{ "right", NS_STYLE_TEXT_ALIGN_RIGHT },
{ "top", NS_STYLE_VERTICAL_ALIGN_TOP },
{ "middle", NS_STYLE_VERTICAL_ALIGN_MIDDLE_WITH_BASELINE },
{ "bottom", NS_STYLE_VERTICAL_ALIGN_BASELINE },
{ "center", NS_STYLE_VERTICAL_ALIGN_MIDDLE_WITH_BASELINE },
{ "baseline", NS_STYLE_VERTICAL_ALIGN_BASELINE },
{ "texttop", NS_STYLE_VERTICAL_ALIGN_TEXT_TOP },
{ "absmiddle", NS_STYLE_VERTICAL_ALIGN_MIDDLE },
{ "abscenter", NS_STYLE_VERTICAL_ALIGN_MIDDLE },
{ "absbottom", NS_STYLE_VERTICAL_ALIGN_BOTTOM },
{ 0 }
};
return aResult.ParseEnumValue(aString, kAlignTable, false);
}
//----------------------------------------
static const nsAttrValue::EnumTable kTableHAlignTable[] = {
{ "left", NS_STYLE_TEXT_ALIGN_LEFT },
{ "right", NS_STYLE_TEXT_ALIGN_RIGHT },
{ "center", NS_STYLE_TEXT_ALIGN_CENTER },
{ "char", NS_STYLE_TEXT_ALIGN_CHAR },
{ "justify",NS_STYLE_TEXT_ALIGN_JUSTIFY },
{ 0 }
};
bool
nsGenericHTMLElement::ParseTableHAlignValue(const nsAString& aString,
nsAttrValue& aResult)
{
return aResult.ParseEnumValue(aString, kTableHAlignTable, false);
}
//----------------------------------------
// This table is used for td, th, tr, col, thead, tbody and tfoot.
static const nsAttrValue::EnumTable kTableCellHAlignTable[] = {
{ "left", NS_STYLE_TEXT_ALIGN_MOZ_LEFT },
{ "right", NS_STYLE_TEXT_ALIGN_MOZ_RIGHT },
{ "center", NS_STYLE_TEXT_ALIGN_MOZ_CENTER },
{ "char", NS_STYLE_TEXT_ALIGN_CHAR },
{ "justify",NS_STYLE_TEXT_ALIGN_JUSTIFY },
{ "middle", NS_STYLE_TEXT_ALIGN_MOZ_CENTER },
{ "absmiddle", NS_STYLE_TEXT_ALIGN_CENTER },
{ 0 }
};
bool
nsGenericHTMLElement::ParseTableCellHAlignValue(const nsAString& aString,
nsAttrValue& aResult)
{
return aResult.ParseEnumValue(aString, kTableCellHAlignTable, false);
}
//----------------------------------------
bool
nsGenericHTMLElement::ParseTableVAlignValue(const nsAString& aString,
nsAttrValue& aResult)
{
return aResult.ParseEnumValue(aString, kTableVAlignTable, false);
}
bool
nsGenericHTMLElement::ParseDivAlignValue(const nsAString& aString,
nsAttrValue& aResult)
{
return aResult.ParseEnumValue(aString, kDivAlignTable, false);
}
bool
nsGenericHTMLElement::ParseImageAttribute(nsIAtom* aAttribute,
const nsAString& aString,
nsAttrValue& aResult)
{
if ((aAttribute == nsGkAtoms::width) ||
(aAttribute == nsGkAtoms::height)) {
return aResult.ParseSpecialIntValue(aString);
}
if ((aAttribute == nsGkAtoms::hspace) ||
(aAttribute == nsGkAtoms::vspace) ||
(aAttribute == nsGkAtoms::border)) {
return aResult.ParseIntWithBounds(aString, 0);
}
return false;
}
bool
nsGenericHTMLElement::ParseReferrerAttribute(const nsAString& aString,
nsAttrValue& aResult)
{
static const nsAttrValue::EnumTable kReferrerTable[] = {
{ "no-referrer", net::RP_No_Referrer },
{ "origin", net::RP_Origin },
{ "unsafe-url", net::RP_Unsafe_URL },
{ 0 }
};
return aResult.ParseEnumValue(aString, kReferrerTable, false);
}
bool
nsGenericHTMLElement::ParseFrameborderValue(const nsAString& aString,
nsAttrValue& aResult)
{
return aResult.ParseEnumValue(aString, kFrameborderTable, false);
}
bool
nsGenericHTMLElement::ParseScrollingValue(const nsAString& aString,
nsAttrValue& aResult)
{
return aResult.ParseEnumValue(aString, kScrollingTable, false);
}
/**
* Handle attributes common to all html elements
*/
void
nsGenericHTMLElement::MapCommonAttributesIntoExceptHidden(const nsMappedAttributes* aAttributes,
nsRuleData* aData)
{
if (aData->mSIDs & NS_STYLE_INHERIT_BIT(UserInterface)) {
nsCSSValue* userModify = aData->ValueForUserModify();
if (userModify->GetUnit() == eCSSUnit_Null) {
const nsAttrValue* value =
aAttributes->GetAttr(nsGkAtoms::contenteditable);
if (value) {
if (value->Equals(nsGkAtoms::_empty, eCaseMatters) ||
value->Equals(nsGkAtoms::_true, eIgnoreCase)) {
userModify->SetIntValue(NS_STYLE_USER_MODIFY_READ_WRITE,
eCSSUnit_Enumerated);
}
else if (value->Equals(nsGkAtoms::_false, eIgnoreCase)) {
userModify->SetIntValue(NS_STYLE_USER_MODIFY_READ_ONLY,
eCSSUnit_Enumerated);
}
}
}
}
if (aData->mSIDs & NS_STYLE_INHERIT_BIT(Font)) {
nsCSSValue* lang = aData->ValueForLang();
if (lang->GetUnit() == eCSSUnit_Null) {
const nsAttrValue* value = aAttributes->GetAttr(nsGkAtoms::lang);
if (value && value->Type() == nsAttrValue::eString) {
lang->SetStringValue(value->GetStringValue(), eCSSUnit_Ident);
}
}
}
}
void
nsGenericHTMLElement::MapCommonAttributesInto(const nsMappedAttributes* aAttributes,
nsRuleData* aData)
{
MapCommonAttributesIntoExceptHidden(aAttributes, aData);
if (aData->mSIDs & NS_STYLE_INHERIT_BIT(Display)) {
nsCSSValue* display = aData->ValueForDisplay();
if (display->GetUnit() == eCSSUnit_Null) {
if (aAttributes->IndexOfAttr(nsGkAtoms::hidden) >= 0) {
display->SetIntValue(NS_STYLE_DISPLAY_NONE, eCSSUnit_Enumerated);
}
}
}
}
/* static */ const nsGenericHTMLElement::MappedAttributeEntry
nsGenericHTMLElement::sCommonAttributeMap[] = {
{ &nsGkAtoms::contenteditable },
{ &nsGkAtoms::lang },
{ &nsGkAtoms::hidden },
{ nullptr }
};
/* static */ const Element::MappedAttributeEntry
nsGenericHTMLElement::sImageMarginSizeAttributeMap[] = {
{ &nsGkAtoms::width },
{ &nsGkAtoms::height },
{ &nsGkAtoms::hspace },
{ &nsGkAtoms::vspace },
{ nullptr }
};
/* static */ const Element::MappedAttributeEntry
nsGenericHTMLElement::sImageAlignAttributeMap[] = {
{ &nsGkAtoms::align },
{ nullptr }
};
/* static */ const Element::MappedAttributeEntry
nsGenericHTMLElement::sDivAlignAttributeMap[] = {
{ &nsGkAtoms::align },
{ nullptr }
};
/* static */ const Element::MappedAttributeEntry
nsGenericHTMLElement::sImageBorderAttributeMap[] = {
{ &nsGkAtoms::border },
{ nullptr }
};
/* static */ const Element::MappedAttributeEntry
nsGenericHTMLElement::sBackgroundAttributeMap[] = {
{ &nsGkAtoms::background },
{ &nsGkAtoms::bgcolor },
{ nullptr }
};
/* static */ const Element::MappedAttributeEntry
nsGenericHTMLElement::sBackgroundColorAttributeMap[] = {
{ &nsGkAtoms::bgcolor },
{ nullptr }
};
void
nsGenericHTMLElement::MapImageAlignAttributeInto(const nsMappedAttributes* aAttributes,
nsRuleData* aRuleData)
{
if (aRuleData->mSIDs & (NS_STYLE_INHERIT_BIT(Display) |
NS_STYLE_INHERIT_BIT(TextReset))) {
const nsAttrValue* value = aAttributes->GetAttr(nsGkAtoms::align);
if (value && value->Type() == nsAttrValue::eEnum) {
int32_t align = value->GetEnumValue();
if (aRuleData->mSIDs & NS_STYLE_INHERIT_BIT(Display)) {
nsCSSValue* cssFloat = aRuleData->ValueForFloat();
if (cssFloat->GetUnit() == eCSSUnit_Null) {
if (align == NS_STYLE_TEXT_ALIGN_LEFT) {
cssFloat->SetIntValue(NS_STYLE_FLOAT_LEFT, eCSSUnit_Enumerated);
} else if (align == NS_STYLE_TEXT_ALIGN_RIGHT) {
cssFloat->SetIntValue(NS_STYLE_FLOAT_RIGHT, eCSSUnit_Enumerated);
}
}
}
if (aRuleData->mSIDs & NS_STYLE_INHERIT_BIT(TextReset)) {
nsCSSValue* verticalAlign = aRuleData->ValueForVerticalAlign();
if (verticalAlign->GetUnit() == eCSSUnit_Null) {
switch (align) {
case NS_STYLE_TEXT_ALIGN_LEFT:
case NS_STYLE_TEXT_ALIGN_RIGHT:
break;
default:
verticalAlign->SetIntValue(align, eCSSUnit_Enumerated);
break;
}
}
}
}
}
}
void
nsGenericHTMLElement::MapDivAlignAttributeInto(const nsMappedAttributes* aAttributes,
nsRuleData* aRuleData)
{
if (aRuleData->mSIDs & NS_STYLE_INHERIT_BIT(Text)) {
nsCSSValue* textAlign = aRuleData->ValueForTextAlign();
if (textAlign->GetUnit() == eCSSUnit_Null) {
// align: enum
const nsAttrValue* value = aAttributes->GetAttr(nsGkAtoms::align);
if (value && value->Type() == nsAttrValue::eEnum)
textAlign->SetIntValue(value->GetEnumValue(), eCSSUnit_Enumerated);
}
}
}
void
nsGenericHTMLElement::MapImageMarginAttributeInto(const nsMappedAttributes* aAttributes,
nsRuleData* aData)
{
if (!(aData->mSIDs & NS_STYLE_INHERIT_BIT(Margin)))
return;
const nsAttrValue* value;
// hspace: value
value = aAttributes->GetAttr(nsGkAtoms::hspace);
if (value) {
nsCSSValue hval;
if (value->Type() == nsAttrValue::eInteger)
hval.SetFloatValue((float)value->GetIntegerValue(), eCSSUnit_Pixel);
else if (value->Type() == nsAttrValue::ePercent)
hval.SetPercentValue(value->GetPercentValue());
if (hval.GetUnit() != eCSSUnit_Null) {
nsCSSValue* left = aData->ValueForMarginLeft();
if (left->GetUnit() == eCSSUnit_Null)
*left = hval;
nsCSSValue* right = aData->ValueForMarginRight();
if (right->GetUnit() == eCSSUnit_Null)
*right = hval;
}
}
// vspace: value
value = aAttributes->GetAttr(nsGkAtoms::vspace);
if (value) {
nsCSSValue vval;
if (value->Type() == nsAttrValue::eInteger)
vval.SetFloatValue((float)value->GetIntegerValue(), eCSSUnit_Pixel);
else if (value->Type() == nsAttrValue::ePercent)
vval.SetPercentValue(value->GetPercentValue());
if (vval.GetUnit() != eCSSUnit_Null) {
nsCSSValue* top = aData->ValueForMarginTop();
if (top->GetUnit() == eCSSUnit_Null)
*top = vval;
nsCSSValue* bottom = aData->ValueForMarginBottom();
if (bottom->GetUnit() == eCSSUnit_Null)
*bottom = vval;
}
}
}
void
nsGenericHTMLElement::MapImageSizeAttributesInto(const nsMappedAttributes* aAttributes,
nsRuleData* aData)
{
if (!(aData->mSIDs & NS_STYLE_INHERIT_BIT(Position)))
return;
// width: value
nsCSSValue* width = aData->ValueForWidth();
if (width->GetUnit() == eCSSUnit_Null) {
const nsAttrValue* value = aAttributes->GetAttr(nsGkAtoms::width);
if (value && value->Type() == nsAttrValue::eInteger)
width->SetFloatValue((float)value->GetIntegerValue(), eCSSUnit_Pixel);
else if (value && value->Type() == nsAttrValue::ePercent)
width->SetPercentValue(value->GetPercentValue());
}
// height: value
nsCSSValue* height = aData->ValueForHeight();
if (height->GetUnit() == eCSSUnit_Null) {
const nsAttrValue* value = aAttributes->GetAttr(nsGkAtoms::height);
if (value && value->Type() == nsAttrValue::eInteger)
height->SetFloatValue((float)value->GetIntegerValue(), eCSSUnit_Pixel);
else if (value && value->Type() == nsAttrValue::ePercent)
height->SetPercentValue(value->GetPercentValue());
}
}
void
nsGenericHTMLElement::MapImageBorderAttributeInto(const nsMappedAttributes* aAttributes,
nsRuleData* aData)
{
if (!(aData->mSIDs & NS_STYLE_INHERIT_BIT(Border)))
return;
// border: pixels
const nsAttrValue* value = aAttributes->GetAttr(nsGkAtoms::border);
if (!value)
return;
nscoord val = 0;
if (value->Type() == nsAttrValue::eInteger)
val = value->GetIntegerValue();
nsCSSValue* borderLeftWidth = aData->ValueForBorderLeftWidth();
if (borderLeftWidth->GetUnit() == eCSSUnit_Null)
borderLeftWidth->SetFloatValue((float)val, eCSSUnit_Pixel);
nsCSSValue* borderTopWidth = aData->ValueForBorderTopWidth();
if (borderTopWidth->GetUnit() == eCSSUnit_Null)
borderTopWidth->SetFloatValue((float)val, eCSSUnit_Pixel);
nsCSSValue* borderRightWidth = aData->ValueForBorderRightWidth();
if (borderRightWidth->GetUnit() == eCSSUnit_Null)
borderRightWidth->SetFloatValue((float)val, eCSSUnit_Pixel);
nsCSSValue* borderBottomWidth = aData->ValueForBorderBottomWidth();
if (borderBottomWidth->GetUnit() == eCSSUnit_Null)
borderBottomWidth->SetFloatValue((float)val, eCSSUnit_Pixel);
nsCSSValue* borderLeftStyle = aData->ValueForBorderLeftStyle();
if (borderLeftStyle->GetUnit() == eCSSUnit_Null)
borderLeftStyle->SetIntValue(NS_STYLE_BORDER_STYLE_SOLID, eCSSUnit_Enumerated);
nsCSSValue* borderTopStyle = aData->ValueForBorderTopStyle();
if (borderTopStyle->GetUnit() == eCSSUnit_Null)
borderTopStyle->SetIntValue(NS_STYLE_BORDER_STYLE_SOLID, eCSSUnit_Enumerated);
nsCSSValue* borderRightStyle = aData->ValueForBorderRightStyle();
if (borderRightStyle->GetUnit() == eCSSUnit_Null)
borderRightStyle->SetIntValue(NS_STYLE_BORDER_STYLE_SOLID, eCSSUnit_Enumerated);
nsCSSValue* borderBottomStyle = aData->ValueForBorderBottomStyle();
if (borderBottomStyle->GetUnit() == eCSSUnit_Null)
borderBottomStyle->SetIntValue(NS_STYLE_BORDER_STYLE_SOLID, eCSSUnit_Enumerated);
nsCSSValue* borderLeftColor = aData->ValueForBorderLeftColor();
if (borderLeftColor->GetUnit() == eCSSUnit_Null)
borderLeftColor->SetIntValue(NS_STYLE_COLOR_MOZ_USE_TEXT_COLOR, eCSSUnit_Enumerated);
nsCSSValue* borderTopColor = aData->ValueForBorderTopColor();
if (borderTopColor->GetUnit() == eCSSUnit_Null)
borderTopColor->SetIntValue(NS_STYLE_COLOR_MOZ_USE_TEXT_COLOR, eCSSUnit_Enumerated);
nsCSSValue* borderRightColor = aData->ValueForBorderRightColor();
if (borderRightColor->GetUnit() == eCSSUnit_Null)
borderRightColor->SetIntValue(NS_STYLE_COLOR_MOZ_USE_TEXT_COLOR, eCSSUnit_Enumerated);
nsCSSValue* borderBottomColor = aData->ValueForBorderBottomColor();
if (borderBottomColor->GetUnit() == eCSSUnit_Null)
borderBottomColor->SetIntValue(NS_STYLE_COLOR_MOZ_USE_TEXT_COLOR, eCSSUnit_Enumerated);
}
void
nsGenericHTMLElement::MapBackgroundInto(const nsMappedAttributes* aAttributes,
nsRuleData* aData)
{
if (!(aData->mSIDs & NS_STYLE_INHERIT_BIT(Background)))
return;
nsPresContext* presContext = aData->mPresContext;
nsCSSValue* backImage = aData->ValueForBackgroundImage();
if (backImage->GetUnit() == eCSSUnit_Null &&
presContext->UseDocumentColors()) {
// background
nsAttrValue* value =
const_cast<nsAttrValue*>(aAttributes->GetAttr(nsGkAtoms::background));
// If the value is an image, or it is a URL and we attempted a load,
// put it in the style tree.
if (value) {
if (value->Type() == nsAttrValue::eURL) {
value->LoadImage(presContext->Document());
}
if (value->Type() == nsAttrValue::eImage) {
nsCSSValueList* list = backImage->SetListValue();
list->mValue.SetImageValue(value->GetImageValue());
}
}
}
}
void
nsGenericHTMLElement::MapBGColorInto(const nsMappedAttributes* aAttributes,
nsRuleData* aData)
{
if (!(aData->mSIDs & NS_STYLE_INHERIT_BIT(Background)))
return;
nsCSSValue* backColor = aData->ValueForBackgroundColor();
if (backColor->GetUnit() == eCSSUnit_Null &&
aData->mPresContext->UseDocumentColors()) {
const nsAttrValue* value = aAttributes->GetAttr(nsGkAtoms::bgcolor);
nscolor color;
if (value && value->GetColorValue(color)) {
backColor->SetColorValue(color);
}
}
}
void
nsGenericHTMLElement::MapBackgroundAttributesInto(const nsMappedAttributes* aAttributes,
nsRuleData* aData)
{
MapBackgroundInto(aAttributes, aData);
MapBGColorInto(aAttributes, aData);
}
//----------------------------------------------------------------------
nsresult
nsGenericHTMLElement::SetAttrHelper(nsIAtom* aAttr, const nsAString& aValue)
{
return SetAttr(kNameSpaceID_None, aAttr, aValue, true);
}
int32_t
nsGenericHTMLElement::GetIntAttr(nsIAtom* aAttr, int32_t aDefault) const
{
const nsAttrValue* attrVal = mAttrsAndChildren.GetAttr(aAttr);
if (attrVal && attrVal->Type() == nsAttrValue::eInteger) {
return attrVal->GetIntegerValue();
}
return aDefault;
}
nsresult
nsGenericHTMLElement::SetIntAttr(nsIAtom* aAttr, int32_t aValue)
{
nsAutoString value;
value.AppendInt(aValue);
return SetAttr(kNameSpaceID_None, aAttr, value, true);
}
uint32_t
nsGenericHTMLElement::GetUnsignedIntAttr(nsIAtom* aAttr,
uint32_t aDefault) const
{
const nsAttrValue* attrVal = mAttrsAndChildren.GetAttr(aAttr);
if (!attrVal || attrVal->Type() != nsAttrValue::eInteger) {
return aDefault;
}
return attrVal->GetIntegerValue();
}
void
nsGenericHTMLElement::GetURIAttr(nsIAtom* aAttr, nsIAtom* aBaseAttr,
nsAString& aResult) const
{
nsCOMPtr<nsIURI> uri;
bool hadAttr = GetURIAttr(aAttr, aBaseAttr, getter_AddRefs(uri));
if (!hadAttr) {
aResult.Truncate();
return;
}
if (!uri) {
// Just return the attr value
GetAttr(kNameSpaceID_None, aAttr, aResult);
return;
}
nsAutoCString spec;
uri->GetSpec(spec);
CopyUTF8toUTF16(spec, aResult);
}
bool
nsGenericHTMLElement::GetURIAttr(nsIAtom* aAttr, nsIAtom* aBaseAttr, nsIURI** aURI) const
{
*aURI = nullptr;
const nsAttrValue* attr = mAttrsAndChildren.GetAttr(aAttr);
if (!attr) {
return false;
}
nsCOMPtr<nsIURI> baseURI = GetBaseURI();
if (aBaseAttr) {
nsAutoString baseAttrValue;
if (GetAttr(kNameSpaceID_None, aBaseAttr, baseAttrValue)) {
nsCOMPtr<nsIURI> baseAttrURI;
nsresult rv =
nsContentUtils::NewURIWithDocumentCharset(getter_AddRefs(baseAttrURI),
baseAttrValue, OwnerDoc(),
baseURI);
if (NS_FAILED(rv)) {
return true;
}
baseURI.swap(baseAttrURI);
}
}
// Don't care about return value. If it fails, we still want to
// return true, and *aURI will be null.
nsContentUtils::NewURIWithDocumentCharset(aURI,
attr->GetStringValue(),
OwnerDoc(), baseURI);
return true;
}
/* static */ bool
nsGenericHTMLElement::IsScrollGrabAllowed(JSContext*, JSObject*)
{
// Only allow scroll grabbing in chrome and certified apps.
nsIPrincipal* prin = nsContentUtils::SubjectPrincipal();
return nsContentUtils::IsSystemPrincipal(prin) ||
prin->GetAppStatus() == nsIPrincipal::APP_STATUS_CERTIFIED;
}
nsresult
nsGenericHTMLElement::GetURIListAttr(nsIAtom* aAttr, nsAString& aResult)
{
aResult.Truncate();
nsAutoString value;
if (!GetAttr(kNameSpaceID_None, aAttr, value))
return NS_OK;
nsIDocument* doc = OwnerDoc();
nsCOMPtr<nsIURI> baseURI = GetBaseURI();
nsString::const_iterator end;
value.EndReading(end);
nsAString::const_iterator iter;
value.BeginReading(iter);
while (iter != end) {
while (*iter == ' ' && iter != end) {
++iter;
}
if (iter == end) {
break;
}
nsAString::const_iterator start = iter;
while (iter != end && *iter != ' ') {
++iter;
}
if (!aResult.IsEmpty()) {
aResult.Append(NS_LITERAL_STRING(" "));
}
const nsSubstring& uriPart = Substring(start, iter);
nsCOMPtr<nsIURI> attrURI;
nsresult rv =
nsContentUtils::NewURIWithDocumentCharset(getter_AddRefs(attrURI),
uriPart, doc, baseURI);
if (NS_FAILED(rv)) {
aResult.Append(uriPart);
continue;
}
MOZ_ASSERT(attrURI);
nsAutoCString spec;
rv = attrURI->GetSpec(spec);
if (NS_WARN_IF(NS_FAILED(rv))) {
aResult.Append(uriPart);
continue;
}
AppendUTF8toUTF16(spec, aResult);
}
return NS_OK;
}
HTMLMenuElement*
nsGenericHTMLElement::GetContextMenu() const
{
nsAutoString value;
GetHTMLAttr(nsGkAtoms::contextmenu, value);
if (!value.IsEmpty()) {
//XXXsmaug How should this work in Shadow DOM?
nsIDocument* doc = GetUncomposedDoc();
if (doc) {
return HTMLMenuElement::FromContentOrNull(doc->GetElementById(value));
}
}
return nullptr;
}
NS_IMETHODIMP
nsGenericHTMLElement::GetContextMenu(nsIDOMHTMLMenuElement** aContextMenu)
{
NS_IF_ADDREF(*aContextMenu = GetContextMenu());
return NS_OK;
}
bool
nsGenericHTMLElement::IsLabelable() const
{
return IsAnyOfHTMLElements(nsGkAtoms::progress, nsGkAtoms::meter);
}
bool
nsGenericHTMLElement::IsInteractiveHTMLContent(bool aIgnoreTabindex) const
{
return IsAnyOfHTMLElements(nsGkAtoms::details, nsGkAtoms::embed,
nsGkAtoms::keygen) ||
(!aIgnoreTabindex && HasAttr(kNameSpaceID_None, nsGkAtoms::tabindex));
}
already_AddRefed<UndoManager>
nsGenericHTMLElement::GetUndoManager()
{
nsDOMSlots* slots = GetExistingDOMSlots();
if (slots && slots->mUndoManager) {
nsRefPtr<UndoManager> undoManager = slots->mUndoManager;
return undoManager.forget();
} else {
return nullptr;
}
}
bool
nsGenericHTMLElement::UndoScope()
{
nsDOMSlots* slots = GetExistingDOMSlots();
return slots && slots->mUndoManager;
}
void
nsGenericHTMLElement::SetUndoScope(bool aUndoScope, mozilla::ErrorResult& aError)
{
nsresult rv = SetUndoScopeInternal(aUndoScope);
if (NS_FAILED(rv)) {
aError.Throw(rv);
return;
}
// The undoScope property must reflect the undoscope boolean attribute.
if (aUndoScope) {
rv = SetAttr(kNameSpaceID_None, nsGkAtoms::undoscope,
NS_LITERAL_STRING(""), true);
} else {
rv = UnsetAttr(kNameSpaceID_None, nsGkAtoms::undoscope, true);
}
if (NS_FAILED(rv)) {
aError.Throw(rv);
return;
}
}
nsresult
nsGenericHTMLElement::SetUndoScopeInternal(bool aUndoScope)
{
if (aUndoScope) {
nsDOMSlots* slots = DOMSlots();
if (!slots->mUndoManager) {
slots->mUndoManager = new UndoManager(this);
}
} else {
nsDOMSlots* slots = GetExistingDOMSlots();
if (slots && slots->mUndoManager) {
// Clear transaction history and disconnect.
ErrorResult rv;
slots->mUndoManager->ClearRedo(rv);
if (rv.Failed()) {
return rv.StealNSResult();
}
slots->mUndoManager->ClearUndo(rv);
if (rv.Failed()) {
return rv.StealNSResult();
}
slots->mUndoManager->Disconnect();
slots->mUndoManager = nullptr;
}
}
return NS_OK;
}
// static
bool
nsGenericHTMLElement::TouchEventsEnabled(JSContext* /* unused */, JSObject* /* unused */)
{
return TouchEvent::PrefEnabled();
}
//----------------------------------------------------------------------
nsGenericHTMLFormElement::nsGenericHTMLFormElement(already_AddRefed<mozilla::dom::NodeInfo>& aNodeInfo)
: nsGenericHTMLElement(aNodeInfo)
, mForm(nullptr)
, mFieldSet(nullptr)
{
// We should add the NS_EVENT_STATE_ENABLED bit here as needed, but
// that depends on our type, which is not initialized yet. So we
// have to do this in subclasses.
}
nsGenericHTMLFormElement::~nsGenericHTMLFormElement()
{
if (mFieldSet) {
mFieldSet->RemoveElement(this);
}
// Check that this element doesn't know anything about its form at this point.
NS_ASSERTION(!mForm, "mForm should be null at this point!");
}
NS_IMPL_ISUPPORTS_INHERITED(nsGenericHTMLFormElement,
nsGenericHTMLElement,
nsIFormControl)
nsINode*
nsGenericHTMLFormElement::GetScopeChainParent() const
{
return mForm ? mForm : nsGenericHTMLElement::GetScopeChainParent();
}
bool
nsGenericHTMLFormElement::IsNodeOfType(uint32_t aFlags) const
{
return !(aFlags & ~(eCONTENT | eHTML_FORM_CONTROL));
}
void
nsGenericHTMLFormElement::SaveSubtreeState()
{
SaveState();
nsGenericHTMLElement::SaveSubtreeState();
}
void
nsGenericHTMLFormElement::SetForm(nsIDOMHTMLFormElement* aForm)
{
NS_PRECONDITION(aForm, "Don't pass null here");
NS_ASSERTION(!mForm,
"We don't support switching from one non-null form to another.");
// keep a *weak* ref to the form here
mForm = static_cast<HTMLFormElement*>(aForm);
}
void
nsGenericHTMLFormElement::ClearForm(bool aRemoveFromForm)
{
NS_ASSERTION((mForm != nullptr) == HasFlag(ADDED_TO_FORM),
"Form control should have had flag set correctly");
if (!mForm) {
return;
}
if (aRemoveFromForm) {
nsAutoString nameVal, idVal;
GetAttr(kNameSpaceID_None, nsGkAtoms::name, nameVal);
GetAttr(kNameSpaceID_None, nsGkAtoms::id, idVal);
mForm->RemoveElement(this, true);
if (!nameVal.IsEmpty()) {
mForm->RemoveElementFromTable(this, nameVal,
HTMLFormElement::ElementRemoved);
}
if (!idVal.IsEmpty()) {
mForm->RemoveElementFromTable(this, idVal,
HTMLFormElement::ElementRemoved);
}
}
UnsetFlags(ADDED_TO_FORM);
mForm = nullptr;
}
Element*
nsGenericHTMLFormElement::GetFormElement()
{
return mForm;
}
HTMLFieldSetElement*
nsGenericHTMLFormElement::GetFieldSet()
{
return mFieldSet;
}
nsresult
nsGenericHTMLFormElement::GetForm(nsIDOMHTMLFormElement** aForm)
{
NS_ENSURE_ARG_POINTER(aForm);
NS_IF_ADDREF(*aForm = mForm);
return NS_OK;
}
nsIContent::IMEState
nsGenericHTMLFormElement::GetDesiredIMEState()
{
nsIEditor* editor = GetEditorInternal();
if (!editor)
return nsGenericHTMLElement::GetDesiredIMEState();
nsCOMPtr<nsIEditorIMESupport> imeEditor = do_QueryInterface(editor);
if (!imeEditor)
return nsGenericHTMLElement::GetDesiredIMEState();
IMEState state;
nsresult rv = imeEditor->GetPreferredIMEState(&state);
if (NS_FAILED(rv))
return nsGenericHTMLElement::GetDesiredIMEState();
return state;
}
nsresult
nsGenericHTMLFormElement::BindToTree(nsIDocument* aDocument,
nsIContent* aParent,
nsIContent* aBindingParent,
bool aCompileEventHandlers)
{
nsresult rv = nsGenericHTMLElement::BindToTree(aDocument, aParent,
aBindingParent,
aCompileEventHandlers);
NS_ENSURE_SUCCESS(rv, rv);
// An autofocus event has to be launched if the autofocus attribute is
// specified and the element accept the autofocus attribute. In addition,
// the document should not be already loaded and the "browser.autofocus"
// preference should be 'true'.
if (IsAutofocusable() && HasAttr(kNameSpaceID_None, nsGkAtoms::autofocus) &&
Preferences::GetBool("browser.autofocus", true)) {
nsCOMPtr<nsIRunnable> event = new nsAutoFocusEvent(this);
rv = NS_DispatchToCurrentThread(event);
NS_ENSURE_SUCCESS(rv, rv);
}
// If @form is set, the element *has* to be in a document, otherwise it
// wouldn't be possible to find an element with the corresponding id.
// If @form isn't set, the element *has* to have a parent, otherwise it
// wouldn't be possible to find a form ancestor.
// We should not call UpdateFormOwner if none of these conditions are
// fulfilled.
if (HasAttr(kNameSpaceID_None, nsGkAtoms::form) ? !!GetUncomposedDoc()
: !!aParent) {
UpdateFormOwner(true, nullptr);
}
// Set parent fieldset which should be used for the disabled state.
UpdateFieldSet(false);
return NS_OK;
}
void
nsGenericHTMLFormElement::UnbindFromTree(bool aDeep, bool aNullParent)
{
// Save state before doing anything
SaveState();
if (mForm) {
// Might need to unset mForm
if (aNullParent) {
// No more parent means no more form
ClearForm(true);
} else {
// Recheck whether we should still have an mForm.
if (HasAttr(kNameSpaceID_None, nsGkAtoms::form) ||
!FindAncestorForm(mForm)) {
ClearForm(true);
} else {
UnsetFlags(MAYBE_ORPHAN_FORM_ELEMENT);
}
}
if (!mForm) {
// Our novalidate state might have changed
UpdateState(false);
}
}
// We have to remove the form id observer if there was one.
// We will re-add one later if needed (during bind to tree).
if (nsContentUtils::HasNonEmptyAttr(this, kNameSpaceID_None,
nsGkAtoms::form)) {
RemoveFormIdObserver();
}
nsGenericHTMLElement::UnbindFromTree(aDeep, aNullParent);
// The element might not have a fieldset anymore.
UpdateFieldSet(false);
}
nsresult
nsGenericHTMLFormElement::BeforeSetAttr(int32_t aNameSpaceID, nsIAtom* aName,
nsAttrValueOrString* aValue,
bool aNotify)
{
if (aNameSpaceID == kNameSpaceID_None) {
nsAutoString tmp;
// remove the control from the hashtable as needed
if (mForm && (aName == nsGkAtoms::name || aName == nsGkAtoms::id)) {
GetAttr(kNameSpaceID_None, aName, tmp);
if (!tmp.IsEmpty()) {
mForm->RemoveElementFromTable(this, tmp,
HTMLFormElement::AttributeUpdated);
}
}
if (mForm && aName == nsGkAtoms::type) {
GetAttr(kNameSpaceID_None, nsGkAtoms::name, tmp);
if (!tmp.IsEmpty()) {
mForm->RemoveElementFromTable(this, tmp,
HTMLFormElement::AttributeUpdated);
}
GetAttr(kNameSpaceID_None, nsGkAtoms::id, tmp);
if (!tmp.IsEmpty()) {
mForm->RemoveElementFromTable(this, tmp,
HTMLFormElement::AttributeUpdated);
}
mForm->RemoveElement(this, false);
// Removing the element from the form can make it not be the default
// control anymore. Go ahead and notify on that change, though we might
// end up readding and becoming the default control again in
// AfterSetAttr.
// FIXME: Bug 656197
UpdateState(aNotify);
}
if (aName == nsGkAtoms::form) {
// If @form isn't set or set to the empty string, there were no observer
// so we don't have to remove it.
if (nsContentUtils::HasNonEmptyAttr(this, kNameSpaceID_None,
nsGkAtoms::form)) {
// The current form id observer is no longer needed.
// A new one may be added in AfterSetAttr.
RemoveFormIdObserver();
}
}
}
return nsGenericHTMLElement::BeforeSetAttr(aNameSpaceID, aName,
aValue, aNotify);
}
nsresult
nsGenericHTMLFormElement::AfterSetAttr(int32_t aNameSpaceID, nsIAtom* aName,
const nsAttrValue* aValue, bool aNotify)
{
if (aNameSpaceID == kNameSpaceID_None) {
// add the control to the hashtable as needed
if (mForm && (aName == nsGkAtoms::name || aName == nsGkAtoms::id) &&
aValue && !aValue->IsEmptyString()) {
MOZ_ASSERT(aValue->Type() == nsAttrValue::eAtom,
"Expected atom value for name/id");
mForm->AddElementToTable(this,
nsDependentAtomString(aValue->GetAtomValue()));
}
if (mForm && aName == nsGkAtoms::type) {
nsAutoString tmp;
GetAttr(kNameSpaceID_None, nsGkAtoms::name, tmp);
if (!tmp.IsEmpty()) {
mForm->AddElementToTable(this, tmp);
}
GetAttr(kNameSpaceID_None, nsGkAtoms::id, tmp);
if (!tmp.IsEmpty()) {
mForm->AddElementToTable(this, tmp);
}
mForm->AddElement(this, false, aNotify);
// Adding the element to the form can make it be the default control .
// Go ahead and notify on that change.
// Note: no need to notify on CanBeDisabled(), since type attr
// changes can't affect that.
UpdateState(aNotify);
}
if (aName == nsGkAtoms::form) {
// We need a new form id observer.
//XXXsmaug How should this work in Shadow DOM?
nsIDocument* doc = GetUncomposedDoc();
if (doc) {
Element* formIdElement = nullptr;
if (aValue && !aValue->IsEmptyString()) {
formIdElement = AddFormIdObserver();
}
// Because we have a new @form value (or no more @form), we have to
// update our form owner.
UpdateFormOwner(false, formIdElement);
}
}
}
return nsGenericHTMLElement::AfterSetAttr(aNameSpaceID, aName,
aValue, aNotify);
}
nsresult
nsGenericHTMLFormElement::PreHandleEvent(EventChainPreVisitor& aVisitor)
{
if (aVisitor.mEvent->mFlags.mIsTrusted) {
switch (aVisitor.mEvent->mMessage) {
case NS_FOCUS_CONTENT:
{
// Check to see if focus has bubbled up from a form control's
// child textfield or button. If that's the case, don't focus
// this parent file control -- leave focus on the child.
nsIFormControlFrame* formControlFrame = GetFormControlFrame(true);
if (formControlFrame &&
aVisitor.mEvent->originalTarget == static_cast<nsINode*>(this))
formControlFrame->SetFocus(true, true);
break;
}
case NS_BLUR_CONTENT:
{
nsIFormControlFrame* formControlFrame = GetFormControlFrame(true);
if (formControlFrame)
formControlFrame->SetFocus(false, false);
break;
}
default:
break;
}
}
return nsGenericHTMLElement::PreHandleEvent(aVisitor);
}
/* virtual */
bool
nsGenericHTMLFormElement::IsDisabled() const
{
return HasAttr(kNameSpaceID_None, nsGkAtoms::disabled) ||
(mFieldSet && mFieldSet->IsDisabled());
}
void
nsGenericHTMLFormElement::ForgetFieldSet(nsIContent* aFieldset)
{
if (mFieldSet == aFieldset) {
mFieldSet = nullptr;
}
}
bool
nsGenericHTMLFormElement::CanBeDisabled() const
{
int32_t type = GetType();
// It's easier to test the types that _cannot_ be disabled
return
type != NS_FORM_LABEL &&
type != NS_FORM_OBJECT &&
type != NS_FORM_OUTPUT;
}
bool
nsGenericHTMLFormElement::IsHTMLFocusable(bool aWithMouse,
bool* aIsFocusable,
int32_t* aTabIndex)
{
if (nsGenericHTMLElement::IsHTMLFocusable(aWithMouse, aIsFocusable, aTabIndex)) {
return true;
}
#ifdef XP_MACOSX
*aIsFocusable =
(!aWithMouse || nsFocusManager::sMouseFocusesFormControl) && *aIsFocusable;
#endif
return false;
}
EventStates
nsGenericHTMLFormElement::IntrinsicState() const
{
// If you add attribute-dependent states here, you need to add them them to
// AfterSetAttr too. And add them to AfterSetAttr for all subclasses that
// implement IntrinsicState() and are affected by that attribute.
EventStates state = nsGenericHTMLElement::IntrinsicState();
if (CanBeDisabled()) {
// :enabled/:disabled
if (IsDisabled()) {
state |= NS_EVENT_STATE_DISABLED;
state &= ~NS_EVENT_STATE_ENABLED;
} else {
state &= ~NS_EVENT_STATE_DISABLED;
state |= NS_EVENT_STATE_ENABLED;
}
}
if (mForm && mForm->IsDefaultSubmitElement(this)) {
NS_ASSERTION(IsSubmitControl(),
"Default submit element that isn't a submit control.");
// We are the default submit element (:default)
state |= NS_EVENT_STATE_DEFAULT;
}
// Make the text controls read-write
if (!state.HasState(NS_EVENT_STATE_MOZ_READWRITE) &&
IsTextControl(false)) {
bool roState = GetBoolAttr(nsGkAtoms::readonly);
if (!roState) {
state |= NS_EVENT_STATE_MOZ_READWRITE;
state &= ~NS_EVENT_STATE_MOZ_READONLY;
}
}
return state;
}
nsGenericHTMLFormElement::FocusTristate
nsGenericHTMLFormElement::FocusState()
{
// We can't be focused if we aren't in a (composed) document
nsIDocument* doc = GetComposedDoc();
if (!doc)
return eUnfocusable;
// first see if we are disabled or not. If disabled then do nothing.
if (IsDisabled()) {
return eUnfocusable;
}
// If the window is not active, do not allow the focus to bring the
// window to the front. We update the focus controller, but do
// nothing else.
nsPIDOMWindow* win = doc->GetWindow();
if (win) {
nsCOMPtr<nsIDOMWindow> rootWindow = do_QueryInterface(win->GetPrivateRoot());
nsCOMPtr<nsIFocusManager> fm = do_GetService(FOCUSMANAGER_CONTRACTID);
if (fm && rootWindow) {
nsCOMPtr<nsIDOMWindow> activeWindow;
fm->GetActiveWindow(getter_AddRefs(activeWindow));
if (activeWindow == rootWindow) {
return eActiveWindow;
}
}
}
return eInactiveWindow;
}
Element*
nsGenericHTMLFormElement::AddFormIdObserver()
{
NS_ASSERTION(GetUncomposedDoc(), "When adding a form id observer, "
"we should be in a document!");
nsAutoString formId;
nsIDocument* doc = OwnerDoc();
GetAttr(kNameSpaceID_None, nsGkAtoms::form, formId);
NS_ASSERTION(!formId.IsEmpty(),
"@form value should not be the empty string!");
nsCOMPtr<nsIAtom> atom = do_GetAtom(formId);
return doc->AddIDTargetObserver(atom, FormIdUpdated, this, false);
}
void
nsGenericHTMLFormElement::RemoveFormIdObserver()
{
/**
* We are using OwnerDoc() because we don't really care about having the
* element actually being in the tree. If it is not and @form value changes,
* this method will be called for nothing but removing an observer which does
* not exist doesn't cost so much (no entry in the hash table) so having a
* boolean for GetUncomposedDoc()/GetOwnerDoc() would make everything look
* more complex for nothing.
*/
nsIDocument* doc = OwnerDoc();
// At this point, we may not have a document anymore. In that case, we can't
// remove the observer. The document did that for us.
if (!doc) {
return;
}
nsAutoString formId;
GetAttr(kNameSpaceID_None, nsGkAtoms::form, formId);
NS_ASSERTION(!formId.IsEmpty(),
"@form value should not be the empty string!");
nsCOMPtr<nsIAtom> atom = do_GetAtom(formId);
doc->RemoveIDTargetObserver(atom, FormIdUpdated, this, false);
}
/* static */
bool
nsGenericHTMLFormElement::FormIdUpdated(Element* aOldElement,
Element* aNewElement,
void* aData)
{
nsGenericHTMLFormElement* element =
static_cast<nsGenericHTMLFormElement*>(aData);
NS_ASSERTION(element->IsHTMLElement(), "aData should be an HTML element");
element->UpdateFormOwner(false, aNewElement);
return true;
}
bool
nsGenericHTMLFormElement::IsElementDisabledForEvents(EventMessage aMessage,
nsIFrame* aFrame)
{
bool disabled = IsDisabled();
if (!disabled && aFrame) {
const nsStyleUserInterface* uiStyle = aFrame->StyleUserInterface();
disabled = uiStyle->mUserInput == NS_STYLE_USER_INPUT_NONE ||
uiStyle->mUserInput == NS_STYLE_USER_INPUT_DISABLED;
}
return disabled && aMessage != eMouseMove;
}
void
nsGenericHTMLFormElement::UpdateFormOwner(bool aBindToTree,
Element* aFormIdElement)
{
NS_PRECONDITION(!aBindToTree || !aFormIdElement,
"aFormIdElement shouldn't be set if aBindToTree is true!");
bool needStateUpdate = false;
if (!aBindToTree) {
needStateUpdate = mForm && mForm->IsDefaultSubmitElement(this);
ClearForm(true);
}
HTMLFormElement *oldForm = mForm;
if (!mForm) {
// If @form is set, we have to use that to find the form.
nsAutoString formId;
if (GetAttr(kNameSpaceID_None, nsGkAtoms::form, formId)) {
if (!formId.IsEmpty()) {
Element* element = nullptr;
if (aBindToTree) {
element = AddFormIdObserver();
} else {
element = aFormIdElement;
}
NS_ASSERTION(GetUncomposedDoc(), "The element should be in a document "
"when UpdateFormOwner is called!");
NS_ASSERTION(!GetUncomposedDoc() ||
element == GetUncomposedDoc()->GetElementById(formId),
"element should be equals to the current element "
"associated with the id in @form!");
if (element && element->IsHTMLElement(nsGkAtoms::form)) {
mForm = static_cast<HTMLFormElement*>(element);
}
}
} else {
// We now have a parent, so we may have picked up an ancestor form. Search
// for it. Note that if mForm is already set we don't want to do this,
// because that means someone (probably the content sink) has already set
// it to the right value. Also note that even if being bound here didn't
// change our parent, we still need to search, since our parent chain
// probably changed _somewhere_.
mForm = FindAncestorForm();
}
}
if (mForm && !HasFlag(ADDED_TO_FORM)) {
// Now we need to add ourselves to the form
nsAutoString nameVal, idVal;
GetAttr(kNameSpaceID_None, nsGkAtoms::name, nameVal);
GetAttr(kNameSpaceID_None, nsGkAtoms::id, idVal);
SetFlags(ADDED_TO_FORM);
// Notify only if we just found this mForm.
mForm->AddElement(this, true, oldForm == nullptr);
if (!nameVal.IsEmpty()) {
mForm->AddElementToTable(this, nameVal);
}
if (!idVal.IsEmpty()) {
mForm->AddElementToTable(this, idVal);
}
}
if (mForm != oldForm || needStateUpdate) {
UpdateState(true);
}
}
void
nsGenericHTMLFormElement::UpdateFieldSet(bool aNotify)
{
nsIContent* parent = nullptr;
nsIContent* prev = nullptr;
for (parent = GetParent(); parent;
prev = parent, parent = parent->GetParent()) {
HTMLFieldSetElement* fieldset =
HTMLFieldSetElement::FromContent(parent);
if (fieldset &&
(!prev || fieldset->GetFirstLegend() != prev)) {
if (mFieldSet == fieldset) {
// We already have the right fieldset;
return;
}
if (mFieldSet) {
mFieldSet->RemoveElement(this);
}
mFieldSet = fieldset;
fieldset->AddElement(this);
// The disabled state may have changed
FieldSetDisabledChanged(aNotify);
return;
}
}
// No fieldset found.
if (mFieldSet) {
mFieldSet->RemoveElement(this);
mFieldSet = nullptr;
// The disabled state may have changed
FieldSetDisabledChanged(aNotify);
}
}
void
nsGenericHTMLFormElement::FieldSetDisabledChanged(bool aNotify)
{
UpdateState(aNotify);
}
bool
nsGenericHTMLFormElement::IsLabelable() const
{
// TODO: keygen should be in that list, see bug 101019.
uint32_t type = GetType();
return (type & NS_FORM_INPUT_ELEMENT && type != NS_FORM_INPUT_HIDDEN) ||
type & NS_FORM_BUTTON_ELEMENT ||
// type == NS_FORM_KEYGEN ||
type == NS_FORM_OUTPUT ||
type == NS_FORM_SELECT ||
type == NS_FORM_TEXTAREA;
}
//----------------------------------------------------------------------
void
nsGenericHTMLElement::Blur(mozilla::ErrorResult& aError)
{
if (!ShouldBlur(this)) {
return;
}
nsIDocument* doc = GetComposedDoc();
if (!doc) {
return;
}
nsIDOMWindow* win = doc->GetWindow();
nsIFocusManager* fm = nsFocusManager::GetFocusManager();
if (win && fm) {
aError = fm->ClearFocus(win);
}
}
void
nsGenericHTMLElement::Focus(ErrorResult& aError)
{
nsIFocusManager* fm = nsFocusManager::GetFocusManager();
if (fm) {
aError = fm->SetFocus(this, 0);
}
}
void
nsGenericHTMLElement::Click()
{
if (HandlingClick())
return;
// Strong in case the event kills it
nsCOMPtr<nsIDocument> doc = GetComposedDoc();
nsCOMPtr<nsIPresShell> shell;
nsRefPtr<nsPresContext> context;
if (doc) {
shell = doc->GetShell();
if (shell) {
context = shell->GetPresContext();
}
}
SetHandlingClick();
// Click() is never called from native code, but it may be
// called from chrome JS. Mark this event trusted if Click()
// is called from chrome code.
WidgetMouseEvent event(nsContentUtils::IsCallerChrome(),
eMouseClick, nullptr, WidgetMouseEvent::eReal);
event.inputSource = nsIDOMMouseEvent::MOZ_SOURCE_UNKNOWN;
EventDispatcher::Dispatch(static_cast<nsIContent*>(this), context, &event);
ClearHandlingClick();
}
bool
nsGenericHTMLElement::IsHTMLFocusable(bool aWithMouse,
bool *aIsFocusable,
int32_t *aTabIndex)
{
nsIDocument* doc = GetComposedDoc();
if (!doc || doc->HasFlag(NODE_IS_EDITABLE)) {
// In designMode documents we only allow focusing the document.
if (aTabIndex) {
*aTabIndex = -1;
}
*aIsFocusable = false;
return true;
}
int32_t tabIndex = TabIndex();
bool override, disabled = false;
if (IsEditableRoot()) {
// Editable roots should always be focusable.
override = true;
// Ignore the disabled attribute in editable contentEditable/designMode
// roots.
if (!HasAttr(kNameSpaceID_None, nsGkAtoms::tabindex)) {
// The default value for tabindex should be 0 for editable
// contentEditable roots.
tabIndex = 0;
}
}
else {
override = false;
// Just check for disabled attribute on form controls
disabled = IsDisabled();
if (disabled) {
tabIndex = -1;
}
}
if (aTabIndex) {
*aTabIndex = tabIndex;
}
// If a tabindex is specified at all, or the default tabindex is 0, we're focusable
*aIsFocusable =
(tabIndex >= 0 || (!disabled && HasAttr(kNameSpaceID_None, nsGkAtoms::tabindex)));
return override;
}
void
nsGenericHTMLElement::RegUnRegAccessKey(bool aDoReg)
{
// first check to see if we have an access key
nsAutoString accessKey;
GetAttr(kNameSpaceID_None, nsGkAtoms::accesskey, accessKey);
if (accessKey.IsEmpty()) {
return;
}
// We have an access key, so get the ESM from the pres context.
nsPresContext* presContext = GetPresContext(eForUncomposedDoc);
if (presContext) {
EventStateManager* esm = presContext->EventStateManager();
// Register or unregister as appropriate.
if (aDoReg) {
esm->RegisterAccessKey(this, (uint32_t)accessKey.First());
} else {
esm->UnregisterAccessKey(this, (uint32_t)accessKey.First());
}
}
}
void
nsGenericHTMLElement::PerformAccesskey(bool aKeyCausesActivation,
bool aIsTrustedEvent)
{
nsPresContext* presContext = GetPresContext(eForUncomposedDoc);
if (!presContext)
return;
// It's hard to say what HTML4 wants us to do in all cases.
nsIFocusManager* fm = nsFocusManager::GetFocusManager();
if (fm) {
fm->SetFocus(this, nsIFocusManager::FLAG_BYKEY);
}
if (aKeyCausesActivation) {
// Click on it if the users prefs indicate to do so.
WidgetMouseEvent event(aIsTrustedEvent, eMouseClick, nullptr,
WidgetMouseEvent::eReal);
event.inputSource = nsIDOMMouseEvent::MOZ_SOURCE_KEYBOARD;
nsAutoPopupStatePusher popupStatePusher(aIsTrustedEvent ?
openAllowed : openAbused);
EventDispatcher::Dispatch(static_cast<nsIContent*>(this),
presContext, &event);
}
}
const nsAttrName*
nsGenericHTMLElement::InternalGetExistingAttrNameFromQName(const nsAString& aStr) const
{
if (IsInHTMLDocument()) {
nsAutoString lower;
nsContentUtils::ASCIIToLower(aStr, lower);
return mAttrsAndChildren.GetExistingAttrNameFromQName(lower);
}
return mAttrsAndChildren.GetExistingAttrNameFromQName(aStr);
}
nsresult
nsGenericHTMLElement::GetEditor(nsIEditor** aEditor)
{
*aEditor = nullptr;
if (!nsContentUtils::IsCallerChrome()) {
return NS_ERROR_DOM_SECURITY_ERR;
}
NS_IF_ADDREF(*aEditor = GetEditorInternal());
return NS_OK;
}
already_AddRefed<nsIEditor>
nsGenericHTMLElement::GetAssociatedEditor()
{
// If contenteditable is ever implemented, it might need to do something different here?
nsCOMPtr<nsIEditor> editor = GetEditorInternal();
return editor.forget();
}
bool
nsGenericHTMLElement::IsCurrentBodyElement()
{
// TODO Bug 698498: Should this handle the case where GetBody returns a
// frameset?
if (!IsHTMLElement(nsGkAtoms::body)) {
return false;
}
nsCOMPtr<nsIDOMHTMLDocument> htmlDocument =
do_QueryInterface(GetUncomposedDoc());
if (!htmlDocument) {
return false;
}
nsCOMPtr<nsIDOMHTMLElement> htmlElement;
htmlDocument->GetBody(getter_AddRefs(htmlElement));
return htmlElement == static_cast<HTMLBodyElement*>(this);
}
// static
void
nsGenericHTMLElement::SyncEditorsOnSubtree(nsIContent* content)
{
/* Sync this node */
nsGenericHTMLElement* element = FromContent(content);
if (element) {
nsCOMPtr<nsIEditor> editor = element->GetAssociatedEditor();
if (editor) {
editor->SyncRealTimeSpell();
}
}
/* Sync all children */
for (nsIContent* child = content->GetFirstChild();
child;
child = child->GetNextSibling()) {
SyncEditorsOnSubtree(child);
}
}
void
nsGenericHTMLElement::RecompileScriptEventListeners()
{
int32_t i, count = mAttrsAndChildren.AttrCount();
for (i = 0; i < count; ++i) {
const nsAttrName *name = mAttrsAndChildren.AttrNameAt(i);
// Eventlistenener-attributes are always in the null namespace
if (!name->IsAtom()) {
continue;
}
nsIAtom *attr = name->Atom();
if (!IsEventAttributeName(attr)) {
continue;
}
nsAutoString value;
GetAttr(kNameSpaceID_None, attr, value);
SetEventHandler(attr, value, true);
}
}
bool
nsGenericHTMLElement::IsEditableRoot() const
{
nsIDocument *document = GetComposedDoc();
if (!document) {
return false;
}
if (document->HasFlag(NODE_IS_EDITABLE)) {
return false;
}
if (GetContentEditableValue() != eTrue) {
return false;
}
nsIContent *parent = GetParent();
return !parent || !parent->HasFlag(NODE_IS_EDITABLE);
}
static void
MakeContentDescendantsEditable(nsIContent *aContent, nsIDocument *aDocument)
{
// If aContent is not an element, we just need to update its
// internal editable state and don't need to notify anyone about
// that. For elements, we need to send a ContentStateChanged
// notification.
if (!aContent->IsElement()) {
aContent->UpdateEditableState(false);
return;
}
Element *element = aContent->AsElement();
element->UpdateEditableState(true);
for (nsIContent *child = aContent->GetFirstChild();
child;
child = child->GetNextSibling()) {
if (!child->HasAttr(kNameSpaceID_None, nsGkAtoms::contenteditable)) {
MakeContentDescendantsEditable(child, aDocument);
}
}
}
void
nsGenericHTMLElement::ChangeEditableState(int32_t aChange)
{
//XXXsmaug Fix this for Shadow DOM, bug 1066965.
nsIDocument* document = GetUncomposedDoc();
if (!document) {
return;
}
if (aChange != 0) {
nsCOMPtr<nsIHTMLDocument> htmlDocument =
do_QueryInterface(document);
if (htmlDocument) {
htmlDocument->ChangeContentEditableCount(this, aChange);
}
nsIContent* parent = GetParent();
while (parent) {
parent->ChangeEditableDescendantCount(aChange);
parent = parent->GetParent();
}
}
if (document->HasFlag(NODE_IS_EDITABLE)) {
document = nullptr;
}
// MakeContentDescendantsEditable is going to call ContentStateChanged for
// this element and all descendants if editable state has changed.
// We might as well wrap it all in one script blocker.
nsAutoScriptBlocker scriptBlocker;
MakeContentDescendantsEditable(this, document);
}
//----------------------------------------------------------------------
nsGenericHTMLFormElementWithState::nsGenericHTMLFormElementWithState(
already_AddRefed<mozilla::dom::NodeInfo>& aNodeInfo
)
: nsGenericHTMLFormElement(aNodeInfo)
{
mStateKey.SetIsVoid(true);
}
nsresult
nsGenericHTMLFormElementWithState::GenerateStateKey()
{
// Keep the key if already computed
if (!mStateKey.IsVoid()) {
return NS_OK;
}
nsIDocument* doc = GetUncomposedDoc();
if (!doc) {
return NS_OK;
}
// Generate the state key
nsresult rv = nsContentUtils::GenerateStateKey(this, doc, mStateKey);
if (NS_FAILED(rv)) {
mStateKey.SetIsVoid(true);
return rv;
}
// If the state key is blank, this is anonymous content or for whatever
// reason we are not supposed to save/restore state: keep it as such.
if (!mStateKey.IsEmpty()) {
// Add something unique to content so layout doesn't muck us up.
mStateKey += "-C";
}
return NS_OK;
}
nsPresState*
nsGenericHTMLFormElementWithState::GetPrimaryPresState()
{
if (mStateKey.IsEmpty()) {
return nullptr;
}
nsCOMPtr<nsILayoutHistoryState> history = GetLayoutHistory(false);
if (!history) {
return nullptr;
}
// Get the pres state for this key, if it doesn't exist, create one.
nsPresState* result = history->GetState(mStateKey);
if (!result) {
result = new nsPresState();
history->AddState(mStateKey, result);
}
return result;
}
already_AddRefed<nsILayoutHistoryState>
nsGenericHTMLFormElementWithState::GetLayoutHistory(bool aRead)
{
nsCOMPtr<nsIDocument> doc = GetUncomposedDoc();
if (!doc) {
return nullptr;
}
//
// Get the history
//
nsCOMPtr<nsILayoutHistoryState> history = doc->GetLayoutHistoryState();
if (!history) {
return nullptr;
}
if (aRead && !history->HasStates()) {
return nullptr;
}
return history.forget();
}
bool
nsGenericHTMLFormElementWithState::RestoreFormControlState()
{
if (mStateKey.IsEmpty()) {
return false;
}
nsCOMPtr<nsILayoutHistoryState> history =
GetLayoutHistory(true);
if (!history) {
return false;
}
nsPresState *state;
// Get the pres state for this key
state = history->GetState(mStateKey);
if (state) {
bool result = RestoreState(state);
history->RemoveState(mStateKey);
return result;
}
return false;
}
void
nsGenericHTMLFormElementWithState::NodeInfoChanged(mozilla::dom::NodeInfo* aOldNodeInfo)
{
mStateKey.SetIsVoid(true);
}
void
nsGenericHTMLElement::GetItemValue(JSContext* aCx, JSObject* aScope,
JS::MutableHandle<JS::Value> aRetval,
ErrorResult& aError)
{
JS::Rooted<JSObject*> scope(aCx, aScope);
if (!HasAttr(kNameSpaceID_None, nsGkAtoms::itemprop)) {
aRetval.setNull();
return;
}
if (ItemScope()) {
JS::Rooted<JS::Value> v(aCx);
JSAutoCompartment ac(aCx, scope);
if (!mozilla::dom::WrapObject(aCx, this, aRetval)) {
aError.Throw(NS_ERROR_FAILURE);
}
return;
}
DOMString string;
GetItemValueText(string);
if (!xpc::NonVoidStringToJsval(aCx, string, aRetval)) {
aError.Throw(NS_ERROR_FAILURE);
}
}
NS_IMETHODIMP
nsGenericHTMLElement::GetItemValue(nsIVariant** aValue)
{
nsCOMPtr<nsIWritableVariant> out = new nsVariant();
if (!HasAttr(kNameSpaceID_None, nsGkAtoms::itemprop)) {
out->SetAsEmpty();
out.forget(aValue);
return NS_OK;
}
if (ItemScope()) {
out->SetAsISupports(static_cast<nsIContent*>(this));
} else {
DOMString string;
GetItemValueText(string);
nsString xpcomString;
string.ToString(xpcomString);
out->SetAsAString(xpcomString);
}
out.forget(aValue);
return NS_OK;
}
void
nsGenericHTMLElement::SetItemValue(JSContext* aCx, JS::Value aValue,
ErrorResult& aError)
{
if (!HasAttr(kNameSpaceID_None, nsGkAtoms::itemprop) ||
HasAttr(kNameSpaceID_None, nsGkAtoms::itemscope)) {
aError.Throw(NS_ERROR_DOM_INVALID_ACCESS_ERR);
return;
}
nsAutoString string;
JS::Rooted<JS::Value> value(aCx, aValue);
if (!ConvertJSValueToString(aCx, value, eStringify, eStringify, string)) {
aError.Throw(NS_ERROR_UNEXPECTED);
return;
}
SetItemValueText(string);
}
NS_IMETHODIMP
nsGenericHTMLElement::SetItemValue(nsIVariant* aValue)
{
if (!HasAttr(kNameSpaceID_None, nsGkAtoms::itemprop) ||
HasAttr(kNameSpaceID_None, nsGkAtoms::itemscope)) {
return NS_ERROR_DOM_INVALID_ACCESS_ERR;
}
nsAutoString string;
aValue->GetAsAString(string);
SetItemValueText(string);
return NS_OK;
}
void
nsGenericHTMLElement::GetItemValueText(DOMString& text)
{
ErrorResult rv;
GetTextContentInternal(text, rv);
}
void
nsGenericHTMLElement::SetItemValueText(const nsAString& text)
{
mozilla::ErrorResult rv;
SetTextContentInternal(text, rv);
}
static void
HTMLPropertiesCollectionDestructor(void *aObject, nsIAtom *aProperty,
void *aPropertyValue, void *aData)
{
HTMLPropertiesCollection* properties =
static_cast<HTMLPropertiesCollection*>(aPropertyValue);
NS_IF_RELEASE(properties);
}
HTMLPropertiesCollection*
nsGenericHTMLElement::Properties()
{
HTMLPropertiesCollection* properties =
static_cast<HTMLPropertiesCollection*>(GetProperty(nsGkAtoms::microdataProperties));
if (!properties) {
properties = new HTMLPropertiesCollection(this);
NS_ADDREF(properties);
SetProperty(nsGkAtoms::microdataProperties, properties, HTMLPropertiesCollectionDestructor);
}
return properties;
}
NS_IMETHODIMP
nsGenericHTMLElement::GetProperties(nsISupports** aProperties)
{
NS_ADDREF(*aProperties = static_cast<nsIHTMLCollection*>(Properties()));
return NS_OK;
}
nsSize
nsGenericHTMLElement::GetWidthHeightForImage(nsRefPtr<imgRequestProxy>& aImageRequest)
{
nsSize size(0,0);
nsIFrame* frame = GetPrimaryFrame(Flush_Layout);
if (frame) {
size = frame->GetContentRect().Size();
size.width = nsPresContext::AppUnitsToIntCSSPixels(size.width);
size.height = nsPresContext::AppUnitsToIntCSSPixels(size.height);
} else {
const nsAttrValue* value;
nsCOMPtr<imgIContainer> image;
if (aImageRequest) {
aImageRequest->GetImage(getter_AddRefs(image));
}
if ((value = GetParsedAttr(nsGkAtoms::width)) &&
value->Type() == nsAttrValue::eInteger) {
size.width = value->GetIntegerValue();
} else if (image) {
image->GetWidth(&size.width);
}
if ((value = GetParsedAttr(nsGkAtoms::height)) &&
value->Type() == nsAttrValue::eInteger) {
size.height = value->GetIntegerValue();
} else if (image) {
image->GetHeight(&size.height);
}
}
NS_ASSERTION(size.width >= 0, "negative width");
NS_ASSERTION(size.height >= 0, "negative height");
return size;
}
bool
nsGenericHTMLElement::IsEventAttributeName(nsIAtom *aName)
{
return nsContentUtils::IsEventAttributeName(aName, EventNameType_HTML);
}
/**
* Construct a URI from a string, as an element.src attribute
* would be set to. Helper for the media elements.
*/
nsresult
nsGenericHTMLElement::NewURIFromString(const nsAString& aURISpec,
nsIURI** aURI)
{
NS_ENSURE_ARG_POINTER(aURI);
*aURI = nullptr;
nsCOMPtr<nsIDocument> doc = OwnerDoc();
nsCOMPtr<nsIURI> baseURI = GetBaseURI();
nsresult rv = nsContentUtils::NewURIWithDocumentCharset(aURI, aURISpec,
doc, baseURI);
NS_ENSURE_SUCCESS(rv, rv);
bool equal;
if (aURISpec.IsEmpty() &&
doc->GetDocumentURI() &&
NS_SUCCEEDED(doc->GetDocumentURI()->Equals(*aURI, &equal)) &&
equal) {
// Assume an element can't point to a fragment of its embedding
// document. Fail here instead of returning the recursive URI
// and waiting for the subsequent load to fail.
NS_RELEASE(*aURI);
return NS_ERROR_DOM_INVALID_STATE_ERR;
}
return NS_OK;
}
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