Mozilla/mozilla/layout/html/content/src/nsHTMLIFrameElement.cpp
1998-11-24 00:11:54 +00:00

283 lines
9.4 KiB
C++

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
*
* The contents of this file are subject to the Netscape Public License
* Version 1.0 (the "License"); you may not use this file except in
* compliance with the License. You may obtain a copy of the License at
* http://www.mozilla.org/NPL/
*
* Software distributed under the License is distributed on an "AS IS"
* basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
* the License for the specific language governing rights and limitations
* under the License.
*
* The Original Code is Mozilla Communicator client code.
*
* The Initial Developer of the Original Code is Netscape Communications
* Corporation. Portions created by Netscape are Copyright (C) 1998
* Netscape Communications Corporation. All Rights Reserved.
*/
#include "nsIDOMHTMLIFrameElement.h"
#include "nsIScriptObjectOwner.h"
#include "nsIDOMEventReceiver.h"
#include "nsIHTMLContent.h"
#include "nsGenericHTMLElement.h"
#include "nsHTMLAtoms.h"
#include "nsHTMLIIDs.h"
#include "nsIStyleContext.h"
#include "nsStyleConsts.h"
#include "nsIPresContext.h"
#include "nsIHTMLAttributes.h"
static NS_DEFINE_IID(kIDOMHTMLIFrameElementIID, NS_IDOMHTMLIFRAMEELEMENT_IID);
static nsGenericHTMLElement::EnumTable kAlignTable[] = {
{ "left", NS_STYLE_TEXT_ALIGN_LEFT },
{ "right", NS_STYLE_TEXT_ALIGN_RIGHT },
{ "center", NS_STYLE_TEXT_ALIGN_CENTER },
{ 0 }
};
class nsHTMLIFrameElement : public nsIDOMHTMLIFrameElement,
public nsIScriptObjectOwner,
public nsIDOMEventReceiver,
public nsIHTMLContent
{
public:
nsHTMLIFrameElement(nsIAtom* aTag);
~nsHTMLIFrameElement();
// nsISupports
NS_DECL_ISUPPORTS
// nsIDOMNode
NS_IMPL_IDOMNODE_USING_GENERIC(mInner)
// nsIDOMElement
NS_IMPL_IDOMELEMENT_USING_GENERIC(mInner)
// nsIDOMHTMLElement
NS_IMPL_IDOMHTMLELEMENT_USING_GENERIC(mInner)
// nsIDOMHTMLIFrameElement
NS_IMETHOD GetAlign(nsString& aAlign);
NS_IMETHOD SetAlign(const nsString& aAlign);
NS_IMETHOD GetFrameBorder(nsString& aFrameBorder);
NS_IMETHOD SetFrameBorder(const nsString& aFrameBorder);
NS_IMETHOD GetHeight(nsString& aHeight);
NS_IMETHOD SetHeight(const nsString& aHeight);
NS_IMETHOD GetLongDesc(nsString& aLongDesc);
NS_IMETHOD SetLongDesc(const nsString& aLongDesc);
NS_IMETHOD GetMarginHeight(nsString& aMarginHeight);
NS_IMETHOD SetMarginHeight(const nsString& aMarginHeight);
NS_IMETHOD GetMarginWidth(nsString& aMarginWidth);
NS_IMETHOD SetMarginWidth(const nsString& aMarginWidth);
NS_IMETHOD GetName(nsString& aName);
NS_IMETHOD SetName(const nsString& aName);
NS_IMETHOD GetScrolling(nsString& aScrolling);
NS_IMETHOD SetScrolling(const nsString& aScrolling);
NS_IMETHOD GetSrc(nsString& aSrc);
NS_IMETHOD SetSrc(const nsString& aSrc);
NS_IMETHOD GetWidth(nsString& aWidth);
NS_IMETHOD SetWidth(const nsString& aWidth);
// nsIScriptObjectOwner
NS_IMPL_ISCRIPTOBJECTOWNER_USING_GENERIC(mInner)
// nsIDOMEventReceiver
NS_IMPL_IDOMEVENTRECEIVER_USING_GENERIC(mInner)
// nsIContent
NS_IMPL_ICONTENT_USING_GENERIC(mInner)
// nsIHTMLContent
NS_IMPL_IHTMLCONTENT_USING_GENERIC(mInner)
protected:
nsGenericHTMLContainerElement mInner;
};
nsresult
NS_NewHTMLIFrameElement(nsIHTMLContent** aInstancePtrResult, nsIAtom* aTag)
{
NS_PRECONDITION(nsnull != aInstancePtrResult, "null ptr");
if (nsnull == aInstancePtrResult) {
return NS_ERROR_NULL_POINTER;
}
nsIHTMLContent* it = new nsHTMLIFrameElement(aTag);
if (nsnull == it) {
return NS_ERROR_OUT_OF_MEMORY;
}
return it->QueryInterface(kIHTMLContentIID, (void**) aInstancePtrResult);
}
nsHTMLIFrameElement::nsHTMLIFrameElement(nsIAtom* aTag)
{
NS_INIT_REFCNT();
mInner.Init(this, aTag);
}
nsHTMLIFrameElement::~nsHTMLIFrameElement()
{
}
NS_IMPL_ADDREF(nsHTMLIFrameElement)
NS_IMPL_RELEASE(nsHTMLIFrameElement)
nsresult
nsHTMLIFrameElement::QueryInterface(REFNSIID aIID, void** aInstancePtr)
{
NS_IMPL_HTML_CONTENT_QUERY_INTERFACE(aIID, aInstancePtr, this)
if (aIID.Equals(kIDOMHTMLIFrameElementIID)) {
nsIDOMHTMLIFrameElement* tmp = this;
*aInstancePtr = (void*) tmp;
mRefCnt++;
return NS_OK;
}
return NS_NOINTERFACE;
}
nsresult
nsHTMLIFrameElement::CloneNode(PRBool aDeep, nsIDOMNode** aReturn)
{
nsHTMLIFrameElement* it = new nsHTMLIFrameElement(mInner.mTag);
if (nsnull == it) {
return NS_ERROR_OUT_OF_MEMORY;
}
mInner.CopyInnerTo(this, &it->mInner);
return it->QueryInterface(kIDOMNodeIID, (void**) aReturn);
}
NS_IMPL_STRING_ATTR(nsHTMLIFrameElement, Align, align)
NS_IMPL_STRING_ATTR(nsHTMLIFrameElement, FrameBorder, frameborder)
NS_IMPL_STRING_ATTR(nsHTMLIFrameElement, Height, height)
NS_IMPL_STRING_ATTR(nsHTMLIFrameElement, LongDesc, longdesc)
NS_IMPL_STRING_ATTR(nsHTMLIFrameElement, MarginHeight, marginheight)
NS_IMPL_STRING_ATTR(nsHTMLIFrameElement, MarginWidth, marginwidth)
NS_IMPL_STRING_ATTR(nsHTMLIFrameElement, Name, name)
NS_IMPL_STRING_ATTR(nsHTMLIFrameElement, Scrolling, scrolling)
NS_IMPL_STRING_ATTR(nsHTMLIFrameElement, Src, src)
NS_IMPL_STRING_ATTR(nsHTMLIFrameElement, Width, width)
NS_IMETHODIMP
nsHTMLIFrameElement::StringToAttribute(nsIAtom* aAttribute,
const nsString& aValue,
nsHTMLValue& aResult)
{
if (aAttribute == nsHTMLAtoms::marginwidth) {
nsGenericHTMLElement::ParseValueOrPercent(aValue, aResult,
eHTMLUnit_Pixel);
return NS_CONTENT_ATTR_HAS_VALUE;
}
else if (aAttribute == nsHTMLAtoms::marginheight) {
nsGenericHTMLElement::ParseValueOrPercent(aValue, aResult,
eHTMLUnit_Pixel);
return NS_CONTENT_ATTR_HAS_VALUE;
}
if (aAttribute == nsHTMLAtoms::width) {
nsGenericHTMLElement::ParseValueOrPercent(aValue, aResult,
eHTMLUnit_Pixel);
return NS_CONTENT_ATTR_HAS_VALUE;
}
else if (aAttribute == nsHTMLAtoms::height) {
nsGenericHTMLElement::ParseValueOrPercent(aValue, aResult,
eHTMLUnit_Pixel);
return NS_CONTENT_ATTR_HAS_VALUE;
}
else if (aAttribute == nsHTMLAtoms::frameborder) {
nsGenericHTMLElement::ParseFrameborderValue(PR_TRUE, aValue, aResult);
return NS_CONTENT_ATTR_HAS_VALUE;
}
else if (aAttribute == nsHTMLAtoms::scrolling) {
nsGenericHTMLElement::ParseScrollingValue(PR_TRUE, aValue, aResult);
return NS_CONTENT_ATTR_HAS_VALUE;
}
else if (aAttribute == nsHTMLAtoms::align) {
if (nsGenericHTMLElement::ParseEnumValue(aValue, kAlignTable, aResult)) {
return NS_CONTENT_ATTR_HAS_VALUE;
}
}
return NS_CONTENT_ATTR_NOT_THERE;
}
NS_IMETHODIMP
nsHTMLIFrameElement::AttributeToString(nsIAtom* aAttribute,
nsHTMLValue& aValue,
nsString& aResult) const
{
if (aAttribute == nsHTMLAtoms::frameborder) {
nsGenericHTMLElement::FrameborderValueToString(PR_TRUE, aValue, aResult);
return NS_CONTENT_ATTR_HAS_VALUE;
}
else if (aAttribute == nsHTMLAtoms::scrolling) {
nsGenericHTMLElement::ScrollingValueToString(PR_TRUE, aValue, aResult);
return NS_CONTENT_ATTR_HAS_VALUE;
}
else if (aAttribute == nsHTMLAtoms::align) {
if (eHTMLUnit_Enumerated == aValue.GetUnit()) {
nsGenericHTMLElement::EnumValueToString(aValue, kAlignTable, aResult);
return NS_CONTENT_ATTR_HAS_VALUE;
}
}
return mInner.AttributeToString(aAttribute, aValue, aResult);
}
static void
MapAttributesInto(nsIHTMLAttributes* aAttributes,
nsIStyleContext* aContext,
nsIPresContext* aPresContext)
{
if (nsnull != aAttributes) {
nsGenericHTMLElement::MapImageAlignAttributeInto(aAttributes, aContext, aPresContext);
nsHTMLValue value;
float p2t;
aPresContext->GetScaledPixelsToTwips(p2t);
nsStylePosition* pos = (nsStylePosition*)
aContext->GetMutableStyleData(eStyleStruct_Position);
nsStyleSpacing* spacing = (nsStyleSpacing*)
aContext->GetMutableStyleData(eStyleStruct_Spacing);
// width: value
aAttributes->GetAttribute(nsHTMLAtoms::width, value);
if (value.GetUnit() == eHTMLUnit_Pixel) {
nscoord twips = NSIntPixelsToTwips(value.GetPixelValue(), p2t);
pos->mWidth.SetCoordValue(twips);
}
else if (value.GetUnit() == eHTMLUnit_Percent) {
pos->mWidth.SetPercentValue(value.GetPercentValue());
}
// height: value
aAttributes->GetAttribute(nsHTMLAtoms::height, value);
if (value.GetUnit() == eHTMLUnit_Pixel) {
nscoord twips = NSIntPixelsToTwips(value.GetPixelValue(), p2t);
pos->mHeight.SetCoordValue(twips);
}
else if (value.GetUnit() == eHTMLUnit_Percent) {
pos->mHeight.SetPercentValue(value.GetPercentValue());
}
}
nsGenericHTMLElement::MapCommonAttributesInto(aAttributes, aContext, aPresContext);
}
NS_IMETHODIMP
nsHTMLIFrameElement::GetAttributeMappingFunction(nsMapAttributesFunc& aMapFunc) const
{
aMapFunc = &MapAttributesInto;
return NS_OK;
}
NS_IMETHODIMP
nsHTMLIFrameElement::HandleDOMEvent(nsIPresContext& aPresContext,
nsEvent* aEvent,
nsIDOMEvent** aDOMEvent,
PRUint32 aFlags,
nsEventStatus& aEventStatus)
{
return mInner.HandleDOMEvent(aPresContext, aEvent, aDOMEvent,
aFlags, aEventStatus);
}