gecko-dev/dom/html/HTMLBodyElement.cpp
Phil Ringnalda 41cdae473a Back out 9 changesets (bug 649142)
Backed out changeset 936703c75200 (bug 649142)
Backed out changeset b0252d2620d8 (bug 649142)
Backed out changeset 69ddb2036c50 (bug 649142)
Backed out changeset 67748675e669 (bug 649142)
Backed out changeset 15ed55c61f4e (bug 649142)
Backed out changeset 35c42cd138e1 (bug 649142)
Backed out changeset 1335630cf287 (bug 649142)
Backed out changeset b5725cd39a31 (bug 649142)
Backed out changeset b0eb691d6695 (bug 649142)
2014-12-30 20:04:20 -08:00

519 lines
17 KiB
C++

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* 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 "HTMLBodyElement.h"
#include "mozilla/dom/HTMLBodyElementBinding.h"
#include "nsAttrValueInlines.h"
#include "nsGkAtoms.h"
#include "nsStyleConsts.h"
#include "nsPresContext.h"
#include "nsIPresShell.h"
#include "nsIDocument.h"
#include "nsHTMLStyleSheet.h"
#include "nsIEditor.h"
#include "nsMappedAttributes.h"
#include "nsRuleData.h"
#include "nsIDocShell.h"
#include "nsRuleWalker.h"
#include "nsGlobalWindow.h"
NS_IMPL_NS_NEW_HTML_ELEMENT(Body)
namespace mozilla {
namespace dom {
//----------------------------------------------------------------------
BodyRule::BodyRule(HTMLBodyElement* aPart)
: mPart(aPart)
{
}
BodyRule::~BodyRule()
{
}
NS_IMPL_ISUPPORTS(BodyRule, nsIStyleRule)
/* virtual */ void
BodyRule::MapRuleInfoInto(nsRuleData* aData)
{
if (!(aData->mSIDs & NS_STYLE_INHERIT_BIT(Margin)) || !mPart)
return; // We only care about margins.
int32_t bodyMarginWidth = -1;
int32_t bodyMarginHeight = -1;
int32_t bodyTopMargin = -1;
int32_t bodyBottomMargin = -1;
int32_t bodyLeftMargin = -1;
int32_t bodyRightMargin = -1;
// check the mode (fortunately, the ruleData has a presContext for us to use!)
NS_ASSERTION(aData->mPresContext, "null presContext in ruleNode was unexpected");
nsCompatibility mode = aData->mPresContext->CompatibilityMode();
const nsAttrValue* value;
if (mPart->GetAttrCount() > 0) {
// if marginwidth/marginheight are set, reflect them as 'margin'
value = mPart->GetParsedAttr(nsGkAtoms::marginwidth);
if (value && value->Type() == nsAttrValue::eInteger) {
bodyMarginWidth = value->GetIntegerValue();
if (bodyMarginWidth < 0) bodyMarginWidth = 0;
nsCSSValue* marginLeft = aData->ValueForMarginLeftValue();
if (marginLeft->GetUnit() == eCSSUnit_Null)
marginLeft->SetFloatValue((float)bodyMarginWidth, eCSSUnit_Pixel);
nsCSSValue* marginRight = aData->ValueForMarginRightValue();
if (marginRight->GetUnit() == eCSSUnit_Null)
marginRight->SetFloatValue((float)bodyMarginWidth, eCSSUnit_Pixel);
}
value = mPart->GetParsedAttr(nsGkAtoms::marginheight);
if (value && value->Type() == nsAttrValue::eInteger) {
bodyMarginHeight = value->GetIntegerValue();
if (bodyMarginHeight < 0) bodyMarginHeight = 0;
nsCSSValue* marginTop = aData->ValueForMarginTop();
if (marginTop->GetUnit() == eCSSUnit_Null)
marginTop->SetFloatValue((float)bodyMarginHeight, eCSSUnit_Pixel);
nsCSSValue* marginBottom = aData->ValueForMarginBottom();
if (marginBottom->GetUnit() == eCSSUnit_Null)
marginBottom->SetFloatValue((float)bodyMarginHeight, eCSSUnit_Pixel);
}
// topmargin (IE-attribute)
value = mPart->GetParsedAttr(nsGkAtoms::topmargin);
if (value && value->Type() == nsAttrValue::eInteger) {
bodyTopMargin = value->GetIntegerValue();
if (bodyTopMargin < 0) bodyTopMargin = 0;
nsCSSValue* marginTop = aData->ValueForMarginTop();
if (marginTop->GetUnit() == eCSSUnit_Null)
marginTop->SetFloatValue((float)bodyTopMargin, eCSSUnit_Pixel);
}
// bottommargin (IE-attribute)
value = mPart->GetParsedAttr(nsGkAtoms::bottommargin);
if (value && value->Type() == nsAttrValue::eInteger) {
bodyBottomMargin = value->GetIntegerValue();
if (bodyBottomMargin < 0) bodyBottomMargin = 0;
nsCSSValue* marginBottom = aData->ValueForMarginBottom();
if (marginBottom->GetUnit() == eCSSUnit_Null)
marginBottom->SetFloatValue((float)bodyBottomMargin, eCSSUnit_Pixel);
}
// leftmargin (IE-attribute)
value = mPart->GetParsedAttr(nsGkAtoms::leftmargin);
if (value && value->Type() == nsAttrValue::eInteger) {
bodyLeftMargin = value->GetIntegerValue();
if (bodyLeftMargin < 0) bodyLeftMargin = 0;
nsCSSValue* marginLeft = aData->ValueForMarginLeftValue();
if (marginLeft->GetUnit() == eCSSUnit_Null)
marginLeft->SetFloatValue((float)bodyLeftMargin, eCSSUnit_Pixel);
}
// rightmargin (IE-attribute)
value = mPart->GetParsedAttr(nsGkAtoms::rightmargin);
if (value && value->Type() == nsAttrValue::eInteger) {
bodyRightMargin = value->GetIntegerValue();
if (bodyRightMargin < 0) bodyRightMargin = 0;
nsCSSValue* marginRight = aData->ValueForMarginRightValue();
if (marginRight->GetUnit() == eCSSUnit_Null)
marginRight->SetFloatValue((float)bodyRightMargin, eCSSUnit_Pixel);
}
}
// if marginwidth or marginheight is set in the <frame> and not set in the <body>
// reflect them as margin in the <body>
if (bodyMarginWidth == -1 || bodyMarginHeight == -1) {
nsCOMPtr<nsIDocShell> docShell(aData->mPresContext->GetDocShell());
if (docShell) {
nscoord frameMarginWidth=-1; // default value
nscoord frameMarginHeight=-1; // default value
docShell->GetMarginWidth(&frameMarginWidth); // -1 indicates not set
docShell->GetMarginHeight(&frameMarginHeight);
if ((frameMarginWidth >= 0) && (bodyMarginWidth == -1)) { // set in <frame> & not in <body>
if (eCompatibility_NavQuirks == mode) {
if ((bodyMarginHeight == -1) && (0 > frameMarginHeight)) // nav quirk
frameMarginHeight = 0;
}
}
if ((frameMarginHeight >= 0) && (bodyMarginHeight == -1)) { // set in <frame> & not in <body>
if (eCompatibility_NavQuirks == mode) {
if ((bodyMarginWidth == -1) && (0 > frameMarginWidth)) // nav quirk
frameMarginWidth = 0;
}
}
if ((bodyMarginWidth == -1) && (frameMarginWidth >= 0)) {
nsCSSValue* marginLeft = aData->ValueForMarginLeftValue();
if (marginLeft->GetUnit() == eCSSUnit_Null)
marginLeft->SetFloatValue((float)frameMarginWidth, eCSSUnit_Pixel);
nsCSSValue* marginRight = aData->ValueForMarginRightValue();
if (marginRight->GetUnit() == eCSSUnit_Null)
marginRight->SetFloatValue((float)frameMarginWidth, eCSSUnit_Pixel);
}
if ((bodyMarginHeight == -1) && (frameMarginHeight >= 0)) {
nsCSSValue* marginTop = aData->ValueForMarginTop();
if (marginTop->GetUnit() == eCSSUnit_Null)
marginTop->SetFloatValue((float)frameMarginHeight, eCSSUnit_Pixel);
nsCSSValue* marginBottom = aData->ValueForMarginBottom();
if (marginBottom->GetUnit() == eCSSUnit_Null)
marginBottom->SetFloatValue((float)frameMarginHeight, eCSSUnit_Pixel);
}
}
}
}
#ifdef DEBUG
/* virtual */ void
BodyRule::List(FILE* out, int32_t aIndent) const
{
nsAutoCString indent;
for (int32_t index = aIndent; --index >= 0; ) {
indent.AppendLiteral(" ");
}
fprintf_stderr(out, "%s[body rule] {}\n", indent.get());
}
#endif
//----------------------------------------------------------------------
HTMLBodyElement::~HTMLBodyElement()
{
if (mContentStyleRule) {
mContentStyleRule->mPart = nullptr;
}
}
JSObject*
HTMLBodyElement::WrapNode(JSContext *aCx)
{
return HTMLBodyElementBinding::Wrap(aCx, this);
}
NS_IMPL_ISUPPORTS_INHERITED(HTMLBodyElement, nsGenericHTMLElement,
nsIDOMHTMLBodyElement)
NS_IMPL_ELEMENT_CLONE(HTMLBodyElement)
NS_IMETHODIMP
HTMLBodyElement::SetBackground(const nsAString& aBackground)
{
ErrorResult rv;
SetBackground(aBackground, rv);
return rv.ErrorCode();
}
NS_IMETHODIMP
HTMLBodyElement::GetBackground(nsAString& aBackground)
{
nsString background;
GetBackground(background);
aBackground = background;
return NS_OK;
}
NS_IMETHODIMP
HTMLBodyElement::SetVLink(const nsAString& aVLink)
{
ErrorResult rv;
SetVLink(aVLink, rv);
return rv.ErrorCode();
}
NS_IMETHODIMP
HTMLBodyElement::GetVLink(nsAString& aVLink)
{
nsString vLink;
GetVLink(vLink);
aVLink = vLink;
return NS_OK;
}
NS_IMETHODIMP
HTMLBodyElement::SetALink(const nsAString& aALink)
{
ErrorResult rv;
SetALink(aALink, rv);
return rv.ErrorCode();
}
NS_IMETHODIMP
HTMLBodyElement::GetALink(nsAString& aALink)
{
nsString aLink;
GetALink(aLink);
aALink = aLink;
return NS_OK;
}
NS_IMETHODIMP
HTMLBodyElement::SetLink(const nsAString& aLink)
{
ErrorResult rv;
SetLink(aLink, rv);
return rv.ErrorCode();
}
NS_IMETHODIMP
HTMLBodyElement::GetLink(nsAString& aLink)
{
nsString link;
GetLink(link);
aLink = link;
return NS_OK;
}
NS_IMETHODIMP
HTMLBodyElement::SetText(const nsAString& aText)
{
ErrorResult rv;
SetText(aText, rv);
return rv.ErrorCode();
}
NS_IMETHODIMP
HTMLBodyElement::GetText(nsAString& aText)
{
nsString text;
GetText(text);
aText = text;
return NS_OK;
}
NS_IMETHODIMP
HTMLBodyElement::SetBgColor(const nsAString& aBgColor)
{
ErrorResult rv;
SetBgColor(aBgColor, rv);
return rv.ErrorCode();
}
NS_IMETHODIMP
HTMLBodyElement::GetBgColor(nsAString& aBgColor)
{
nsString bgColor;
GetBgColor(bgColor);
aBgColor = bgColor;
return NS_OK;
}
bool
HTMLBodyElement::ParseAttribute(int32_t aNamespaceID,
nsIAtom* aAttribute,
const nsAString& aValue,
nsAttrValue& aResult)
{
if (aNamespaceID == kNameSpaceID_None) {
if (aAttribute == nsGkAtoms::bgcolor ||
aAttribute == nsGkAtoms::text ||
aAttribute == nsGkAtoms::link ||
aAttribute == nsGkAtoms::alink ||
aAttribute == nsGkAtoms::vlink) {
return aResult.ParseColor(aValue);
}
if (aAttribute == nsGkAtoms::marginwidth ||
aAttribute == nsGkAtoms::marginheight ||
aAttribute == nsGkAtoms::topmargin ||
aAttribute == nsGkAtoms::bottommargin ||
aAttribute == nsGkAtoms::leftmargin ||
aAttribute == nsGkAtoms::rightmargin) {
return aResult.ParseIntWithBounds(aValue, 0);
}
}
return nsGenericHTMLElement::ParseBackgroundAttribute(aNamespaceID,
aAttribute, aValue,
aResult) ||
nsGenericHTMLElement::ParseAttribute(aNamespaceID, aAttribute, aValue,
aResult);
}
void
HTMLBodyElement::UnbindFromTree(bool aDeep, bool aNullParent)
{
if (mContentStyleRule) {
mContentStyleRule->mPart = nullptr;
mContentStyleRule = nullptr;
}
nsGenericHTMLElement::UnbindFromTree(aDeep, aNullParent);
}
void
HTMLBodyElement::MapAttributesIntoRule(const nsMappedAttributes* aAttributes,
nsRuleData* aData)
{
if (aData->mSIDs & NS_STYLE_INHERIT_BIT(Display)) {
// When display if first asked for, go ahead and get our colors set up.
nsIPresShell *presShell = aData->mPresContext->GetPresShell();
if (presShell) {
nsIDocument *doc = presShell->GetDocument();
if (doc) {
nsHTMLStyleSheet* styleSheet = doc->GetAttributeStyleSheet();
if (styleSheet) {
const nsAttrValue* value;
nscolor color;
value = aAttributes->GetAttr(nsGkAtoms::link);
if (value && value->GetColorValue(color)) {
styleSheet->SetLinkColor(color);
}
value = aAttributes->GetAttr(nsGkAtoms::alink);
if (value && value->GetColorValue(color)) {
styleSheet->SetActiveLinkColor(color);
}
value = aAttributes->GetAttr(nsGkAtoms::vlink);
if (value && value->GetColorValue(color)) {
styleSheet->SetVisitedLinkColor(color);
}
}
}
}
}
if (aData->mSIDs & NS_STYLE_INHERIT_BIT(Color)) {
nsCSSValue *colorValue = aData->ValueForColor();
if (colorValue->GetUnit() == eCSSUnit_Null &&
aData->mPresContext->UseDocumentColors()) {
// color: color
nscolor color;
const nsAttrValue* value = aAttributes->GetAttr(nsGkAtoms::text);
if (value && value->GetColorValue(color))
colorValue->SetColorValue(color);
}
}
nsGenericHTMLElement::MapBackgroundAttributesInto(aAttributes, aData);
nsGenericHTMLElement::MapCommonAttributesInto(aAttributes, aData);
}
nsMapRuleToAttributesFunc
HTMLBodyElement::GetAttributeMappingFunction() const
{
return &MapAttributesIntoRule;
}
NS_IMETHODIMP
HTMLBodyElement::WalkContentStyleRules(nsRuleWalker* aRuleWalker)
{
nsGenericHTMLElement::WalkContentStyleRules(aRuleWalker);
if (!mContentStyleRule && IsInDoc()) {
// XXXbz should this use OwnerDoc() or GetComposedDoc()?
// sXBL/XBL2 issue!
mContentStyleRule = new BodyRule(this);
}
if (aRuleWalker && mContentStyleRule) {
aRuleWalker->Forward(mContentStyleRule);
}
return NS_OK;
}
NS_IMETHODIMP_(bool)
HTMLBodyElement::IsAttributeMapped(const nsIAtom* aAttribute) const
{
static const MappedAttributeEntry attributes[] = {
{ &nsGkAtoms::link },
{ &nsGkAtoms::vlink },
{ &nsGkAtoms::alink },
{ &nsGkAtoms::text },
// These aren't mapped through attribute mapping, but they are
// mapped through a style rule, so it is attribute dependent style.
// XXXldb But we don't actually replace the body rule when we have
// dynamic changes...
{ &nsGkAtoms::marginwidth },
{ &nsGkAtoms::marginheight },
{ nullptr },
};
static const MappedAttributeEntry* const map[] = {
attributes,
sCommonAttributeMap,
sBackgroundAttributeMap,
};
return FindAttributeDependence(aAttribute, map);
}
already_AddRefed<nsIEditor>
HTMLBodyElement::GetAssociatedEditor()
{
nsCOMPtr<nsIEditor> editor = GetEditorInternal();
if (editor) {
return editor.forget();
}
// Make sure this is the actual body of the document
if (!IsCurrentBodyElement()) {
return nullptr;
}
// For designmode, try to get document's editor
nsPresContext* presContext = GetPresContext(eForComposedDoc);
if (!presContext) {
return nullptr;
}
nsCOMPtr<nsIDocShell> docShell = presContext->GetDocShell();
if (!docShell) {
return nullptr;
}
docShell->GetEditor(getter_AddRefs(editor));
return editor.forget();
}
bool
HTMLBodyElement::IsEventAttributeName(nsIAtom *aName)
{
return nsContentUtils::IsEventAttributeName(aName,
EventNameType_HTML |
EventNameType_HTMLBodyOrFramesetOnly);
}
#define EVENT(name_, id_, type_, struct_) /* nothing; handled by the superclass */
// nsGenericHTMLElement::GetOnError returns
// already_AddRefed<EventHandlerNonNull> while other getters return
// EventHandlerNonNull*, so allow passing in the type to use here.
#define WINDOW_EVENT_HELPER(name_, type_) \
type_* \
HTMLBodyElement::GetOn##name_() \
{ \
nsPIDOMWindow* win = OwnerDoc()->GetInnerWindow(); \
if (win) { \
nsCOMPtr<nsISupports> supports = do_QueryInterface(win); \
nsGlobalWindow* globalWin = nsGlobalWindow::FromSupports(supports); \
return globalWin->GetOn##name_(); \
} \
return nullptr; \
} \
void \
HTMLBodyElement::SetOn##name_(type_* handler) \
{ \
nsPIDOMWindow* win = OwnerDoc()->GetInnerWindow(); \
if (!win) { \
return; \
} \
\
nsCOMPtr<nsISupports> supports = do_QueryInterface(win); \
nsGlobalWindow* globalWin = nsGlobalWindow::FromSupports(supports); \
return globalWin->SetOn##name_(handler); \
}
#define WINDOW_EVENT(name_, id_, type_, struct_) \
WINDOW_EVENT_HELPER(name_, EventHandlerNonNull)
#define BEFOREUNLOAD_EVENT(name_, id_, type_, struct_) \
WINDOW_EVENT_HELPER(name_, OnBeforeUnloadEventHandlerNonNull)
#include "mozilla/EventNameList.h" // IWYU pragma: keep
#undef BEFOREUNLOAD_EVENT
#undef WINDOW_EVENT
#undef WINDOW_EVENT_HELPER
#undef EVENT
} // namespace dom
} // namespace mozilla