318 lines
9.2 KiB
C++
318 lines
9.2 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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*
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* The contents of this file are subject to the Netscape Public
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* License Version 1.1 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.mozilla.org/NPL/
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*
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* Software distributed under the License is distributed on an "AS
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* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
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* implied. See the License for the specific language governing
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* rights and limitations under the License.
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*
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* The Original Code is Mozilla Communicator client code.
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*
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* The Initial Developer of the Original Code is Netscape Communications
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* Corporation. Portions created by Netscape are
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* Copyright (C) 1998 Netscape Communications Corporation. All
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* Rights Reserved.
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*
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* Contributor(s):
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*/
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#include "nsIDOMHTMLHRElement.h"
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#include "nsIScriptObjectOwner.h"
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#include "nsIDOMEventReceiver.h"
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#include "nsIHTMLContent.h"
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#include "nsGenericHTMLElement.h"
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#include "nsHTMLAtoms.h"
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#include "nsHTMLIIDs.h"
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#include "nsIStyleContext.h"
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#include "nsIMutableStyleContext.h"
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#include "nsStyleConsts.h"
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#include "nsIPresContext.h"
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#include "nsIHTMLAttributes.h"
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static NS_DEFINE_IID(kIDOMHTMLHRElementIID, NS_IDOMHTMLHRELEMENT_IID);
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class nsHTMLHRElement : public nsIDOMHTMLHRElement,
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public nsIScriptObjectOwner,
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public nsIDOMEventReceiver,
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public nsIHTMLContent
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{
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public:
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nsHTMLHRElement(nsIAtom* aTag);
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virtual ~nsHTMLHRElement();
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// nsISupports
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NS_DECL_ISUPPORTS
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// nsIDOMNode
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NS_IMPL_IDOMNODE_USING_GENERIC(mInner)
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// nsIDOMElement
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NS_IMPL_IDOMELEMENT_USING_GENERIC(mInner)
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// nsIDOMHTMLElement
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NS_IMPL_IDOMHTMLELEMENT_USING_GENERIC(mInner)
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// nsIDOMHTMLHRElement
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NS_IMETHOD GetAlign(nsString& aAlign);
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NS_IMETHOD SetAlign(const nsString& aAlign);
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NS_IMETHOD GetNoShade(PRBool* aNoShade);
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NS_IMETHOD SetNoShade(PRBool aNoShade);
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NS_IMETHOD GetSize(nsString& aSize);
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NS_IMETHOD SetSize(const nsString& aSize);
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NS_IMETHOD GetWidth(nsString& aWidth);
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NS_IMETHOD SetWidth(const nsString& aWidth);
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// nsIScriptObjectOwner
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NS_IMPL_ISCRIPTOBJECTOWNER_USING_GENERIC(mInner)
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// nsIDOMEventReceiver
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NS_IMPL_IDOMEVENTRECEIVER_USING_GENERIC(mInner)
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// nsIContent
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NS_IMPL_ICONTENT_USING_GENERIC(mInner)
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// nsIHTMLContent
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NS_IMPL_IHTMLCONTENT_USING_GENERIC(mInner)
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protected:
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nsGenericHTMLLeafElement mInner;
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};
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nsresult
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NS_NewHTMLHRElement(nsIHTMLContent** aInstancePtrResult, nsIAtom* aTag)
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{
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NS_PRECONDITION(nsnull != aInstancePtrResult, "null ptr");
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if (nsnull == aInstancePtrResult) {
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return NS_ERROR_NULL_POINTER;
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}
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nsIHTMLContent* it = new nsHTMLHRElement(aTag);
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if (nsnull == it) {
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return NS_ERROR_OUT_OF_MEMORY;
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}
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return it->QueryInterface(kIHTMLContentIID, (void**) aInstancePtrResult);
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}
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nsHTMLHRElement::nsHTMLHRElement(nsIAtom* aTag)
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{
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NS_INIT_REFCNT();
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mInner.Init(this, aTag);
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}
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nsHTMLHRElement::~nsHTMLHRElement()
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{
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}
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NS_IMPL_ADDREF(nsHTMLHRElement)
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NS_IMPL_RELEASE(nsHTMLHRElement)
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nsresult
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nsHTMLHRElement::QueryInterface(REFNSIID aIID, void** aInstancePtr)
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{
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NS_IMPL_HTML_CONTENT_QUERY_INTERFACE(aIID, aInstancePtr, this)
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if (aIID.Equals(kIDOMHTMLHRElementIID)) {
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nsIDOMHTMLHRElement* tmp = this;
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*aInstancePtr = (void*) tmp;
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NS_ADDREF_THIS();
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return NS_OK;
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}
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return NS_NOINTERFACE;
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}
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nsresult
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nsHTMLHRElement::CloneNode(PRBool aDeep, nsIDOMNode** aReturn)
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{
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nsHTMLHRElement* it = new nsHTMLHRElement(mInner.mTag);
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if (nsnull == it) {
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return NS_ERROR_OUT_OF_MEMORY;
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}
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mInner.CopyInnerTo(this, &it->mInner, aDeep);
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return it->QueryInterface(kIDOMNodeIID, (void**) aReturn);
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}
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NS_IMPL_STRING_ATTR(nsHTMLHRElement, Align, align)
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#ifdef DEBUG_SET_ATTR
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NS_IMETHODIMP
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nsHTMLHRElement::GetNoShade(PRBool* aValue)
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{
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nsHTMLValue val;
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nsresult rv = mInner.GetAttribute(nsHTMLAtoms::noshade, val);
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*aValue = NS_CONTENT_ATTR_NOT_THERE != rv;
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return NS_OK;
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}
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NS_IMETHODIMP
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nsHTMLHRElement::SetNoShade(PRBool aValue)
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{
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nsAutoString empty;
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if (aValue) {
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return mInner.SetAttr(nsHTMLAtoms::noshade, empty);
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}
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else {
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mInner.UnsetAttr(nsHTMLAtoms::noshade);
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return NS_OK;
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}
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}
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#else
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NS_IMPL_BOOL_ATTR(nsHTMLHRElement, NoShade, noshade)
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#endif
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NS_IMPL_STRING_ATTR(nsHTMLHRElement, Size, size)
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NS_IMPL_STRING_ATTR(nsHTMLHRElement, Width, width)
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static nsGenericHTMLElement::EnumTable kAlignTable[] = {
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{ "left", NS_STYLE_TEXT_ALIGN_LEFT },
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{ "right", NS_STYLE_TEXT_ALIGN_RIGHT },
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{ "center", NS_STYLE_TEXT_ALIGN_CENTER },
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{ 0 }
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};
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NS_IMETHODIMP
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nsHTMLHRElement::StringToAttribute(nsIAtom* aAttribute,
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const nsString& aValue,
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nsHTMLValue& aResult)
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{
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if (aAttribute == nsHTMLAtoms::width) {
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if (nsGenericHTMLElement::ParseValueOrPercent(aValue, aResult,
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eHTMLUnit_Pixel)) {
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return NS_CONTENT_ATTR_HAS_VALUE;
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}
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}
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else if (aAttribute == nsHTMLAtoms::size) {
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if (nsGenericHTMLElement::ParseValue(aValue, 1, 100, aResult, eHTMLUnit_Pixel)) {
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return NS_CONTENT_ATTR_HAS_VALUE;
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}
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}
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else if (aAttribute == nsHTMLAtoms::noshade) {
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aResult.SetEmptyValue();
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return NS_CONTENT_ATTR_HAS_VALUE;
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}
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else if (aAttribute == nsHTMLAtoms::align) {
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if (nsGenericHTMLElement::ParseEnumValue(aValue, kAlignTable, aResult)) {
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return NS_CONTENT_ATTR_HAS_VALUE;
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}
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}
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return NS_CONTENT_ATTR_NOT_THERE;
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}
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NS_IMETHODIMP
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nsHTMLHRElement::AttributeToString(nsIAtom* aAttribute,
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const nsHTMLValue& aValue,
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nsString& aResult) const
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{
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if (aAttribute == nsHTMLAtoms::align) {
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if (eHTMLUnit_Enumerated == aValue.GetUnit()) {
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nsGenericHTMLElement::EnumValueToString(aValue, kAlignTable, aResult);
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return NS_CONTENT_ATTR_HAS_VALUE;
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}
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}
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return mInner.AttributeToString(aAttribute, aValue, aResult);
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}
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static void
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MapAttributesInto(const nsIHTMLMappedAttributes* aAttributes,
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nsIMutableStyleContext* aContext,
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nsIPresContext* aPresContext)
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{
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if (nsnull != aAttributes) {
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nsHTMLValue value;
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// align: enum
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aAttributes->GetAttribute(nsHTMLAtoms::align, value);
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if (eHTMLUnit_Enumerated == value.GetUnit()) {
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// Map align attribute into auto side margins
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nsStyleSpacing* spacing = (nsStyleSpacing*)
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aContext->GetMutableStyleData(eStyleStruct_Spacing);
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nsStyleCoord otto(eStyleUnit_Auto);
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nsStyleCoord zero(nscoord(0));
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switch (value.GetIntValue()) {
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case NS_STYLE_TEXT_ALIGN_LEFT:
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spacing->mMargin.SetLeft(zero);
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spacing->mMargin.SetRight(otto);
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break;
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case NS_STYLE_TEXT_ALIGN_RIGHT:
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spacing->mMargin.SetLeft(otto);
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spacing->mMargin.SetRight(zero);
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break;
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case NS_STYLE_TEXT_ALIGN_CENTER:
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spacing->mMargin.SetLeft(otto);
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spacing->mMargin.SetRight(otto);
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break;
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}
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}
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// width: pixel, percent
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float p2t;
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aPresContext->GetScaledPixelsToTwips(&p2t);
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nsStylePosition* pos = (nsStylePosition*)
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aContext->GetMutableStyleData(eStyleStruct_Position);
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aAttributes->GetAttribute(nsHTMLAtoms::width, value);
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if (eHTMLUnit_Pixel == value.GetUnit()) {
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nscoord twips = NSIntPixelsToTwips(value.GetPixelValue(), p2t);
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pos->mWidth.SetCoordValue(twips);
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}
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else if (eHTMLUnit_Percent == value.GetUnit()) {
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pos->mWidth.SetPercentValue(value.GetPercentValue());
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}
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// size: pixel
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aAttributes->GetAttribute(nsHTMLAtoms::size, value);
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if (eHTMLUnit_Pixel == value.GetUnit()) {
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nscoord twips = NSIntPixelsToTwips(value.GetPixelValue(), p2t);
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pos->mHeight.SetCoordValue(twips);
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}
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}
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nsGenericHTMLElement::MapCommonAttributesInto(aAttributes, aContext,
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aPresContext);
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}
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NS_IMETHODIMP
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nsHTMLHRElement::GetMappedAttributeImpact(const nsIAtom* aAttribute,
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PRInt32& aHint) const
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{
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if (aAttribute == nsHTMLAtoms::noshade) {
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aHint = NS_STYLE_HINT_VISUAL;
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}
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else if ((aAttribute == nsHTMLAtoms::align) ||
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(aAttribute == nsHTMLAtoms::width) ||
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(aAttribute == nsHTMLAtoms::size)) {
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aHint = NS_STYLE_HINT_REFLOW;
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}
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else if (! nsGenericHTMLElement::GetCommonMappedAttributesImpact(aAttribute, aHint)) {
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aHint = NS_STYLE_HINT_CONTENT;
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}
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return NS_OK;
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}
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NS_IMETHODIMP
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nsHTMLHRElement::GetAttributeMappingFunctions(nsMapAttributesFunc& aFontMapFunc,
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nsMapAttributesFunc& aMapFunc) const
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{
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aFontMapFunc = nsnull;
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aMapFunc = &MapAttributesInto;
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return NS_OK;
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}
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NS_IMETHODIMP
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nsHTMLHRElement::HandleDOMEvent(nsIPresContext* aPresContext,
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nsEvent* aEvent,
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nsIDOMEvent** aDOMEvent,
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PRUint32 aFlags,
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nsEventStatus* aEventStatus)
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{
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return mInner.HandleDOMEvent(aPresContext, aEvent, aDOMEvent,
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aFlags, aEventStatus);
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}
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NS_IMETHODIMP
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nsHTMLHRElement::SizeOf(nsISizeOfHandler* aSizer, PRUint32* aResult) const
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{
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return mInner.SizeOf(aSizer, aResult, sizeof(*this));
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}
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