зеркало из https://github.com/mozilla/gecko-dev.git
523 строки
17 KiB
C++
523 строки
17 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "HTMLBodyElement.h"
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#include "mozilla/dom/HTMLBodyElementBinding.h"
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#include "nsAttrValueInlines.h"
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#include "nsGkAtoms.h"
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#include "nsStyleConsts.h"
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#include "nsPresContext.h"
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#include "nsIPresShell.h"
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#include "nsIDocument.h"
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#include "nsHTMLStyleSheet.h"
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#include "nsIEditor.h"
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#include "nsMappedAttributes.h"
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#include "nsRuleData.h"
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#include "nsIDocShell.h"
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#include "nsRuleWalker.h"
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#include "nsGlobalWindow.h"
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NS_IMPL_NS_NEW_HTML_ELEMENT(Body)
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namespace mozilla {
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namespace dom {
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//----------------------------------------------------------------------
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BodyRule::BodyRule(HTMLBodyElement* aPart)
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: mPart(aPart)
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{
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}
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BodyRule::~BodyRule()
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{
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}
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NS_IMPL_ISUPPORTS(BodyRule, nsIStyleRule)
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/* virtual */ void
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BodyRule::MapRuleInfoInto(nsRuleData* aData)
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{
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if (!(aData->mSIDs & NS_STYLE_INHERIT_BIT(Margin)) || !mPart)
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return; // We only care about margins.
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int32_t bodyMarginWidth = -1;
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int32_t bodyMarginHeight = -1;
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int32_t bodyTopMargin = -1;
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int32_t bodyBottomMargin = -1;
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int32_t bodyLeftMargin = -1;
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int32_t bodyRightMargin = -1;
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// check the mode (fortunately, the ruleData has a presContext for us to use!)
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NS_ASSERTION(aData->mPresContext, "null presContext in ruleNode was unexpected");
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nsCompatibility mode = aData->mPresContext->CompatibilityMode();
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const nsAttrValue* value;
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if (mPart->GetAttrCount() > 0) {
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// if marginwidth/marginheight are set, reflect them as 'margin'
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value = mPart->GetParsedAttr(nsGkAtoms::marginwidth);
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if (value && value->Type() == nsAttrValue::eInteger) {
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bodyMarginWidth = value->GetIntegerValue();
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if (bodyMarginWidth < 0) bodyMarginWidth = 0;
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nsCSSValue* marginLeft = aData->ValueForMarginLeft();
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if (marginLeft->GetUnit() == eCSSUnit_Null)
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marginLeft->SetFloatValue((float)bodyMarginWidth, eCSSUnit_Pixel);
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nsCSSValue* marginRight = aData->ValueForMarginRight();
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if (marginRight->GetUnit() == eCSSUnit_Null)
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marginRight->SetFloatValue((float)bodyMarginWidth, eCSSUnit_Pixel);
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}
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value = mPart->GetParsedAttr(nsGkAtoms::marginheight);
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if (value && value->Type() == nsAttrValue::eInteger) {
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bodyMarginHeight = value->GetIntegerValue();
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if (bodyMarginHeight < 0) bodyMarginHeight = 0;
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nsCSSValue* marginTop = aData->ValueForMarginTop();
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if (marginTop->GetUnit() == eCSSUnit_Null)
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marginTop->SetFloatValue((float)bodyMarginHeight, eCSSUnit_Pixel);
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nsCSSValue* marginBottom = aData->ValueForMarginBottom();
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if (marginBottom->GetUnit() == eCSSUnit_Null)
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marginBottom->SetFloatValue((float)bodyMarginHeight, eCSSUnit_Pixel);
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}
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// topmargin (IE-attribute)
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value = mPart->GetParsedAttr(nsGkAtoms::topmargin);
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if (value && value->Type() == nsAttrValue::eInteger) {
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bodyTopMargin = value->GetIntegerValue();
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if (bodyTopMargin < 0) bodyTopMargin = 0;
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nsCSSValue* marginTop = aData->ValueForMarginTop();
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if (marginTop->GetUnit() == eCSSUnit_Null)
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marginTop->SetFloatValue((float)bodyTopMargin, eCSSUnit_Pixel);
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}
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// bottommargin (IE-attribute)
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value = mPart->GetParsedAttr(nsGkAtoms::bottommargin);
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if (value && value->Type() == nsAttrValue::eInteger) {
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bodyBottomMargin = value->GetIntegerValue();
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if (bodyBottomMargin < 0) bodyBottomMargin = 0;
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nsCSSValue* marginBottom = aData->ValueForMarginBottom();
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if (marginBottom->GetUnit() == eCSSUnit_Null)
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marginBottom->SetFloatValue((float)bodyBottomMargin, eCSSUnit_Pixel);
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}
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// leftmargin (IE-attribute)
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value = mPart->GetParsedAttr(nsGkAtoms::leftmargin);
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if (value && value->Type() == nsAttrValue::eInteger) {
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bodyLeftMargin = value->GetIntegerValue();
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if (bodyLeftMargin < 0) bodyLeftMargin = 0;
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nsCSSValue* marginLeft = aData->ValueForMarginLeft();
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if (marginLeft->GetUnit() == eCSSUnit_Null)
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marginLeft->SetFloatValue((float)bodyLeftMargin, eCSSUnit_Pixel);
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}
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// rightmargin (IE-attribute)
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value = mPart->GetParsedAttr(nsGkAtoms::rightmargin);
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if (value && value->Type() == nsAttrValue::eInteger) {
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bodyRightMargin = value->GetIntegerValue();
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if (bodyRightMargin < 0) bodyRightMargin = 0;
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nsCSSValue* marginRight = aData->ValueForMarginRight();
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if (marginRight->GetUnit() == eCSSUnit_Null)
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marginRight->SetFloatValue((float)bodyRightMargin, eCSSUnit_Pixel);
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}
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}
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// if marginwidth or marginheight is set in the <frame> and not set in the <body>
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// reflect them as margin in the <body>
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if (bodyMarginWidth == -1 || bodyMarginHeight == -1) {
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nsCOMPtr<nsIDocShell> docShell(aData->mPresContext->GetDocShell());
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if (docShell) {
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nscoord frameMarginWidth=-1; // default value
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nscoord frameMarginHeight=-1; // default value
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docShell->GetMarginWidth(&frameMarginWidth); // -1 indicates not set
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docShell->GetMarginHeight(&frameMarginHeight);
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if ((frameMarginWidth >= 0) && (bodyMarginWidth == -1)) { // set in <frame> & not in <body>
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if (eCompatibility_NavQuirks == mode) {
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if ((bodyMarginHeight == -1) && (0 > frameMarginHeight)) // nav quirk
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frameMarginHeight = 0;
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}
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}
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if ((frameMarginHeight >= 0) && (bodyMarginHeight == -1)) { // set in <frame> & not in <body>
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if (eCompatibility_NavQuirks == mode) {
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if ((bodyMarginWidth == -1) && (0 > frameMarginWidth)) // nav quirk
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frameMarginWidth = 0;
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}
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}
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if ((bodyMarginWidth == -1) && (frameMarginWidth >= 0)) {
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nsCSSValue* marginLeft = aData->ValueForMarginLeft();
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if (marginLeft->GetUnit() == eCSSUnit_Null)
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marginLeft->SetFloatValue((float)frameMarginWidth, eCSSUnit_Pixel);
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nsCSSValue* marginRight = aData->ValueForMarginRight();
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if (marginRight->GetUnit() == eCSSUnit_Null)
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marginRight->SetFloatValue((float)frameMarginWidth, eCSSUnit_Pixel);
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}
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if ((bodyMarginHeight == -1) && (frameMarginHeight >= 0)) {
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nsCSSValue* marginTop = aData->ValueForMarginTop();
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if (marginTop->GetUnit() == eCSSUnit_Null)
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marginTop->SetFloatValue((float)frameMarginHeight, eCSSUnit_Pixel);
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nsCSSValue* marginBottom = aData->ValueForMarginBottom();
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if (marginBottom->GetUnit() == eCSSUnit_Null)
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marginBottom->SetFloatValue((float)frameMarginHeight, eCSSUnit_Pixel);
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}
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}
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}
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}
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/* virtual */ bool
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BodyRule::MightMapInheritedStyleData()
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{
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return false;
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}
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#ifdef DEBUG
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/* virtual */ void
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BodyRule::List(FILE* out, int32_t aIndent) const
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{
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nsAutoCString indent;
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for (int32_t index = aIndent; --index >= 0; ) {
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indent.AppendLiteral(" ");
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}
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fprintf_stderr(out, "%s[body rule] {}\n", indent.get());
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}
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#endif
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//----------------------------------------------------------------------
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HTMLBodyElement::~HTMLBodyElement()
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{
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if (mContentStyleRule) {
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mContentStyleRule->mPart = nullptr;
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}
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}
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JSObject*
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HTMLBodyElement::WrapNode(JSContext *aCx, JS::Handle<JSObject*> aGivenProto)
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{
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return HTMLBodyElementBinding::Wrap(aCx, this, aGivenProto);
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}
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NS_IMPL_ISUPPORTS_INHERITED(HTMLBodyElement, nsGenericHTMLElement,
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nsIDOMHTMLBodyElement)
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NS_IMPL_ELEMENT_CLONE(HTMLBodyElement)
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NS_IMETHODIMP
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HTMLBodyElement::SetBackground(const nsAString& aBackground)
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{
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ErrorResult rv;
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SetBackground(aBackground, rv);
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return rv.StealNSResult();
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}
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NS_IMETHODIMP
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HTMLBodyElement::GetBackground(nsAString& aBackground)
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{
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DOMString background;
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GetBackground(background);
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background.ToString(aBackground);
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return NS_OK;
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}
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NS_IMETHODIMP
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HTMLBodyElement::SetVLink(const nsAString& aVLink)
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{
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ErrorResult rv;
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SetVLink(aVLink, rv);
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return rv.StealNSResult();
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}
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NS_IMETHODIMP
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HTMLBodyElement::GetVLink(nsAString& aVLink)
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{
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DOMString vLink;
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GetVLink(vLink);
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vLink.ToString(aVLink);
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return NS_OK;
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}
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NS_IMETHODIMP
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HTMLBodyElement::SetALink(const nsAString& aALink)
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{
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ErrorResult rv;
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SetALink(aALink, rv);
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return rv.StealNSResult();
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}
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NS_IMETHODIMP
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HTMLBodyElement::GetALink(nsAString& aALink)
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{
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DOMString aLink;
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GetALink(aLink);
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aLink.ToString(aALink);
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return NS_OK;
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}
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NS_IMETHODIMP
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HTMLBodyElement::SetLink(const nsAString& aLink)
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{
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ErrorResult rv;
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SetLink(aLink, rv);
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return rv.StealNSResult();
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}
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NS_IMETHODIMP
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HTMLBodyElement::GetLink(nsAString& aLink)
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{
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DOMString link;
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GetLink(link);
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link.ToString(aLink);
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return NS_OK;
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}
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NS_IMETHODIMP
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HTMLBodyElement::SetText(const nsAString& aText)
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{
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ErrorResult rv;
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SetText(aText, rv);
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return rv.StealNSResult();
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}
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NS_IMETHODIMP
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HTMLBodyElement::GetText(nsAString& aText)
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{
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DOMString text;
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GetText(text);
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text.ToString(aText);
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return NS_OK;
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}
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NS_IMETHODIMP
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HTMLBodyElement::SetBgColor(const nsAString& aBgColor)
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{
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ErrorResult rv;
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SetBgColor(aBgColor, rv);
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return rv.StealNSResult();
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}
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NS_IMETHODIMP
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HTMLBodyElement::GetBgColor(nsAString& aBgColor)
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{
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DOMString bgColor;
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GetBgColor(bgColor);
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bgColor.ToString(aBgColor);
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return NS_OK;
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}
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bool
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HTMLBodyElement::ParseAttribute(int32_t aNamespaceID,
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nsIAtom* aAttribute,
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const nsAString& aValue,
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nsAttrValue& aResult)
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{
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if (aNamespaceID == kNameSpaceID_None) {
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if (aAttribute == nsGkAtoms::bgcolor ||
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aAttribute == nsGkAtoms::text ||
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aAttribute == nsGkAtoms::link ||
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aAttribute == nsGkAtoms::alink ||
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aAttribute == nsGkAtoms::vlink) {
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return aResult.ParseColor(aValue);
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}
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if (aAttribute == nsGkAtoms::marginwidth ||
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aAttribute == nsGkAtoms::marginheight ||
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aAttribute == nsGkAtoms::topmargin ||
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aAttribute == nsGkAtoms::bottommargin ||
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aAttribute == nsGkAtoms::leftmargin ||
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aAttribute == nsGkAtoms::rightmargin) {
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return aResult.ParseIntWithBounds(aValue, 0);
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}
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}
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return nsGenericHTMLElement::ParseBackgroundAttribute(aNamespaceID,
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aAttribute, aValue,
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aResult) ||
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nsGenericHTMLElement::ParseAttribute(aNamespaceID, aAttribute, aValue,
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aResult);
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}
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void
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HTMLBodyElement::UnbindFromTree(bool aDeep, bool aNullParent)
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{
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if (mContentStyleRule) {
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mContentStyleRule->mPart = nullptr;
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mContentStyleRule = nullptr;
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}
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nsGenericHTMLElement::UnbindFromTree(aDeep, aNullParent);
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}
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void
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HTMLBodyElement::MapAttributesIntoRule(const nsMappedAttributes* aAttributes,
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nsRuleData* aData)
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{
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if (aData->mSIDs & NS_STYLE_INHERIT_BIT(Display)) {
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// When display if first asked for, go ahead and get our colors set up.
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nsIPresShell *presShell = aData->mPresContext->GetPresShell();
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if (presShell) {
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nsIDocument *doc = presShell->GetDocument();
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if (doc) {
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nsHTMLStyleSheet* styleSheet = doc->GetAttributeStyleSheet();
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if (styleSheet) {
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const nsAttrValue* value;
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nscolor color;
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value = aAttributes->GetAttr(nsGkAtoms::link);
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if (value && value->GetColorValue(color)) {
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styleSheet->SetLinkColor(color);
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}
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value = aAttributes->GetAttr(nsGkAtoms::alink);
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if (value && value->GetColorValue(color)) {
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styleSheet->SetActiveLinkColor(color);
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}
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value = aAttributes->GetAttr(nsGkAtoms::vlink);
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if (value && value->GetColorValue(color)) {
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styleSheet->SetVisitedLinkColor(color);
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}
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}
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}
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}
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}
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if (aData->mSIDs & NS_STYLE_INHERIT_BIT(Color)) {
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nsCSSValue *colorValue = aData->ValueForColor();
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if (colorValue->GetUnit() == eCSSUnit_Null &&
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aData->mPresContext->UseDocumentColors()) {
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// color: color
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nscolor color;
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const nsAttrValue* value = aAttributes->GetAttr(nsGkAtoms::text);
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if (value && value->GetColorValue(color))
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colorValue->SetColorValue(color);
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}
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}
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nsGenericHTMLElement::MapBackgroundAttributesInto(aAttributes, aData);
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nsGenericHTMLElement::MapCommonAttributesInto(aAttributes, aData);
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}
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nsMapRuleToAttributesFunc
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HTMLBodyElement::GetAttributeMappingFunction() const
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{
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return &MapAttributesIntoRule;
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}
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NS_IMETHODIMP
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HTMLBodyElement::WalkContentStyleRules(nsRuleWalker* aRuleWalker)
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{
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nsGenericHTMLElement::WalkContentStyleRules(aRuleWalker);
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if (!mContentStyleRule && IsInUncomposedDoc()) {
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// XXXbz should this use OwnerDoc() or GetComposedDoc()?
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// sXBL/XBL2 issue!
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mContentStyleRule = new BodyRule(this);
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}
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if (aRuleWalker && mContentStyleRule) {
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aRuleWalker->Forward(mContentStyleRule);
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}
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return NS_OK;
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}
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NS_IMETHODIMP_(bool)
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HTMLBodyElement::IsAttributeMapped(const nsIAtom* aAttribute) const
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{
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static const MappedAttributeEntry attributes[] = {
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{ &nsGkAtoms::link },
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{ &nsGkAtoms::vlink },
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{ &nsGkAtoms::alink },
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{ &nsGkAtoms::text },
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// These aren't mapped through attribute mapping, but they are
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// mapped through a style rule, so it is attribute dependent style.
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// XXXldb But we don't actually replace the body rule when we have
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// dynamic changes...
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{ &nsGkAtoms::marginwidth },
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{ &nsGkAtoms::marginheight },
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{ nullptr },
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};
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static const MappedAttributeEntry* const map[] = {
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attributes,
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sCommonAttributeMap,
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sBackgroundAttributeMap,
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};
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return FindAttributeDependence(aAttribute, map);
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}
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already_AddRefed<nsIEditor>
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HTMLBodyElement::GetAssociatedEditor()
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{
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nsCOMPtr<nsIEditor> editor = GetEditorInternal();
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if (editor) {
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return editor.forget();
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}
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// Make sure this is the actual body of the document
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if (!IsCurrentBodyElement()) {
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return nullptr;
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}
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// For designmode, try to get document's editor
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nsPresContext* presContext = GetPresContext(eForComposedDoc);
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if (!presContext) {
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return nullptr;
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}
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nsCOMPtr<nsIDocShell> docShell = presContext->GetDocShell();
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if (!docShell) {
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return nullptr;
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}
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docShell->GetEditor(getter_AddRefs(editor));
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return editor.forget();
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}
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bool
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HTMLBodyElement::IsEventAttributeName(nsIAtom *aName)
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{
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return nsContentUtils::IsEventAttributeName(aName,
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EventNameType_HTML |
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EventNameType_HTMLBodyOrFramesetOnly);
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}
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#define EVENT(name_, id_, type_, struct_) /* nothing; handled by the superclass */
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// nsGenericHTMLElement::GetOnError returns
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// already_AddRefed<EventHandlerNonNull> while other getters return
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// EventHandlerNonNull*, so allow passing in the type to use here.
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#define WINDOW_EVENT_HELPER(name_, type_) \
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type_* \
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HTMLBodyElement::GetOn##name_() \
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{ \
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if (nsPIDOMWindowInner* win = OwnerDoc()->GetInnerWindow()) { \
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nsGlobalWindow* globalWin = nsGlobalWindow::Cast(win); \
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return globalWin->GetOn##name_(); \
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} \
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return nullptr; \
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} \
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void \
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HTMLBodyElement::SetOn##name_(type_* handler) \
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{ \
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nsPIDOMWindowInner* win = OwnerDoc()->GetInnerWindow(); \
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if (!win) { \
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return; \
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} \
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\
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nsGlobalWindow* globalWin = nsGlobalWindow::Cast(win); \
|
|
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
|