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Adding support for proportional widths to tree columns.

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This commit is contained in:
hyatt%netscape.com 1999-09-02 01:13:27 +00:00
parent acf1f2f7e0
commit c7a01f28f9
3 changed files with 426 additions and 3 deletions
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143
content/xul/content/src/nsXULElement.cpp
View File

@ -34,6 +34,7 @@
#include "nsDOMEvent.h"
#include "nsXULAttributes.h"
#include "nsIXULPopupListener.h"
#include "nsIHTMLContentContainer.h"
#include "nsHashtable.h"
#include "nsIPresShell.h"
#include "nsIAtom.h"
@ -65,6 +66,8 @@
#include "nsRDFContentUtils.h"
#include "nsRDFDOMNodeList.h"
#include "nsStyleConsts.h"
#include "nsIStyleSheet.h"
#include "nsIHTMLStyleSheet.h"
#include "nsIDOMMouseListener.h"
#include "nsIDOMMouseMotionListener.h"
#include "nsIDOMLoadListener.h"
@ -75,6 +78,7 @@
#include "nsIDOMMenuListener.h"
#include "nsIScriptContextOwner.h"
#include "nsIStyledContent.h"
#include "nsIStyleContext.h"
#include "nsIFocusableContent.h"
#include "nsIStyleRule.h"
#include "nsIURL.h"
@ -83,6 +87,7 @@
#include "rdfutil.h"
#include "prlog.h"
#include "rdf.h"
#include "nsHTMLValue.h"
#include "nsIController.h"
@ -227,7 +232,8 @@ class RDFElementImpl : public nsIDOMXULElement,
public nsIStyledContent,
public nsIXMLContent,
public nsIXULContent,
public nsIFocusableContent
public nsIFocusableContent,
public nsIStyleRule
{
public:
RDFElementImpl(PRInt32 aNameSpaceID, nsIAtom* aTag);
@ -341,6 +347,13 @@ public:
NS_IMETHOD SetFocus(nsIPresContext* aPresContext);
NS_IMETHOD RemoveFocus(nsIPresContext* aPresContext);
// nsIStyleRule interface. The node implements this to deal with attributes that
// need to be mapped into style contexts (e.g., width in treecols).
NS_IMETHOD GetStyleSheet(nsIStyleSheet*& aSheet) const;
NS_IMETHOD GetStrength(PRInt32& aStrength) const;
NS_IMETHOD MapFontStyleInto(nsIStyleContext* aContext, nsIPresContext* aPresContext);
NS_IMETHOD MapStyleInto(nsIStyleContext* aContext, nsIPresContext* aPresContext);
// nsIJSScriptObject
virtual PRBool AddProperty(JSContext *aContext, jsval aID, jsval *aVp);
virtual PRBool DeleteProperty(JSContext *aContext, jsval aID, jsval *aVp);
@ -369,6 +382,12 @@ public:
static nsresult
ExecuteJSCode(nsIDOMElement* anElement);
// Used with treecol width attributes
static ParseNumericValue(const nsString& aString,
PRInt32& aIntValue,
float& aFloatValue,
nsHTMLUnit& aValueUnit);
static nsresult
GetElementsByTagName(nsIDOMNode* aNode,
const nsString& aTagName,
@ -405,6 +424,7 @@ private:
static nsIAtom* kTreeRowAtom;
static nsIAtom* kTreeCellAtom;
static nsIAtom* kTreeChildrenAtom;
static nsIAtom* kTreeColAtom;
static nsIAtom* kTitledButtonAtom;
@ -453,6 +473,7 @@ nsIAtom* RDFElementImpl::kTreeItemAtom;
nsIAtom* RDFElementImpl::kTreeRowAtom;
nsIAtom* RDFElementImpl::kTreeCellAtom;
nsIAtom* RDFElementImpl::kTreeChildrenAtom;
nsIAtom* RDFElementImpl::kTreeColAtom;
nsIAtom* RDFElementImpl::kSelectedAtom;
nsIAtom* RDFElementImpl::kTitledButtonAtom;
nsIAtom* RDFElementImpl::kPopupAtom;
@ -548,6 +569,7 @@ RDFElementImpl::RDFElementImpl(PRInt32 aNameSpaceID, nsIAtom* aTag)
kTreeRowAtom = NS_NewAtom("treerow");
kTreeCellAtom = NS_NewAtom("treecell");
kTreeChildrenAtom = NS_NewAtom("treechildren");
kTreeColAtom = NS_NewAtom("treecol");
kSelectedAtom = NS_NewAtom("selected");
kTitledButtonAtom = NS_NewAtom("titledbutton");
kPopupAtom = NS_NewAtom("popup");
@ -631,6 +653,7 @@ RDFElementImpl::~RDFElementImpl()
NS_IF_RELEASE(kTreeRowAtom);
NS_IF_RELEASE(kTreeCellAtom);
NS_IF_RELEASE(kTreeChildrenAtom);
NS_IF_RELEASE(kTreeColAtom);
NS_IF_RELEASE(kSelectedAtom);
NS_IF_RELEASE(kTitledButtonAtom);
NS_IF_RELEASE(kPopupAtom);
@ -715,6 +738,9 @@ RDFElementImpl::QueryInterface(REFNSIID iid, void** result)
IsFocusableContent()) {
*result = NS_STATIC_CAST(nsIFocusableContent*, this);
}
else if (iid.Equals(nsIStyleRule::GetIID())) {
*result = NS_STATIC_CAST(nsIStyleRule*, this);
}
else if ((iid.Equals(nsIDOMXULTreeElement::GetIID()) ||
iid.Equals(nsIXULTreeContent::GetIID())) &&
(mNameSpaceID == kNameSpaceID_XUL) &&
@ -3389,6 +3415,22 @@ RDFElementImpl::HasClass(nsIAtom* aClass) const
NS_IMETHODIMP
RDFElementImpl::GetContentStyleRules(nsISupportsArray* aRules)
{
// For treecols, we support proportional widths using the WIDTH attribute.
if (mTag == kTreeColAtom) {
// If the width attribute is set, then we should return ourselves as a style
// rule.
nsCOMPtr<nsIAtom> widthAtom = dont_AddRef(NS_NewAtom("width"));
nsAutoString width;
GetAttribute(kNameSpaceID_None, widthAtom, width);
if (width != "") {
// XXX This should ultimately be factored out if we find that
// a bunch of XUL widgets are implementing attributes that need
// to be mapped into style. I'm hoping treecol will be the only
// one that needs to do this though.
// QI ourselves to be an nsIStyleRule.
aRules->AppendElement((nsIStyleRule*)this);
}
}
return NS_OK;
}
@ -3537,3 +3579,102 @@ RDFElementImpl::IsFocusableContent()
return (mTag == kTitledButtonAtom) ||
(mTag == kTreeAtom);
}
// nsIStyleRule interface
NS_IMETHODIMP
RDFElementImpl::GetStyleSheet(nsIStyleSheet*& aSheet) const
{
nsresult rv = NS_OK;
aSheet = nsnull;
if (mDocument) {
nsCOMPtr<nsIHTMLContentContainer> container = do_QueryInterface(mDocument);
if (container) {
nsCOMPtr<nsIHTMLStyleSheet> htmlStyleSheet;
rv = container->GetAttributeStyleSheet(getter_AddRefs(htmlStyleSheet));
if (NS_FAILED(rv))
return rv;
nsCOMPtr<nsIStyleSheet> styleSheet = do_QueryInterface(htmlStyleSheet);
aSheet = styleSheet;
NS_IF_ADDREF(aSheet);
}
}
return rv;
}
NS_IMETHODIMP
RDFElementImpl::GetStrength(PRInt32& aStrength) const
{
return NS_OK;
}
NS_IMETHODIMP
RDFElementImpl::MapFontStyleInto(nsIStyleContext* aContext, nsIPresContext* aPresContext)
{
return NS_OK;
}
NS_IMETHODIMP
RDFElementImpl::MapStyleInto(nsIStyleContext* aContext, nsIPresContext* aPresContext)
{
if (mTag == kTreeColAtom) {
// Should only get called if we had a width attribute set. Retrieve it.
nsAutoString widthVal;
GetAttribute("width", widthVal);
if (widthVal != "") {
PRInt32 intVal;
float floatVal;
nsHTMLUnit unit = eHTMLUnit_Null;
if (ParseNumericValue(widthVal, intVal, floatVal, unit)) {
// Success. Update the width for the style context.
nsStylePosition* position = (nsStylePosition*)
aContext->GetMutableStyleData(eStyleStruct_Position);
switch (unit) {
case eHTMLUnit_Percent:
position->mWidth.SetPercentValue(floatVal);
break;
case eHTMLUnit_Pixel:
float p2t;
aPresContext->GetScaledPixelsToTwips(&p2t);
position->mWidth.SetCoordValue(NSIntPixelsToTwips(intVal, p2t));
break;
case eHTMLUnit_Proportional:
position->mWidth.SetIntValue(intVal, eStyleUnit_Proportional);
break;
default:
break;
}
}
}
}
return NS_OK;
}
PRBool
RDFElementImpl::ParseNumericValue(const nsString& aString,
PRInt32& aIntValue,
float& aFloatValue,
nsHTMLUnit& aValueUnit)
{
nsAutoString tmp(aString);
tmp.CompressWhitespace(PR_TRUE, PR_TRUE);
PRInt32 ec, val = tmp.ToInteger(&ec);
if (NS_OK == ec) {
if (val < 0) val = 0;
if (tmp.Last() == '%') {/* XXX not 100% compatible with ebina's code */
if (val > 100) val = 100;
aFloatValue = (float(val)/100.0f);
aValueUnit = eHTMLUnit_Percent;
} else if (tmp.Last() == '*') {
aIntValue = val;
aValueUnit = eHTMLUnit_Proportional;
} else {
aIntValue = val;
aValueUnit = eHTMLUnit_Pixel;
}
return PR_TRUE;
}
return PR_FALSE;
}

143
rdf/content/src/nsRDFElement.cpp
View File

@ -34,6 +34,7 @@
#include "nsDOMEvent.h"
#include "nsXULAttributes.h"
#include "nsIXULPopupListener.h"
#include "nsIHTMLContentContainer.h"
#include "nsHashtable.h"
#include "nsIPresShell.h"
#include "nsIAtom.h"
@ -65,6 +66,8 @@
#include "nsRDFContentUtils.h"
#include "nsRDFDOMNodeList.h"
#include "nsStyleConsts.h"
#include "nsIStyleSheet.h"
#include "nsIHTMLStyleSheet.h"
#include "nsIDOMMouseListener.h"
#include "nsIDOMMouseMotionListener.h"
#include "nsIDOMLoadListener.h"
@ -75,6 +78,7 @@
#include "nsIDOMMenuListener.h"
#include "nsIScriptContextOwner.h"
#include "nsIStyledContent.h"
#include "nsIStyleContext.h"
#include "nsIFocusableContent.h"
#include "nsIStyleRule.h"
#include "nsIURL.h"
@ -83,6 +87,7 @@
#include "rdfutil.h"
#include "prlog.h"
#include "rdf.h"
#include "nsHTMLValue.h"
#include "nsIController.h"
@ -227,7 +232,8 @@ class RDFElementImpl : public nsIDOMXULElement,
public nsIStyledContent,
public nsIXMLContent,
public nsIXULContent,
public nsIFocusableContent
public nsIFocusableContent,
public nsIStyleRule
{
public:
RDFElementImpl(PRInt32 aNameSpaceID, nsIAtom* aTag);
@ -341,6 +347,13 @@ public:
NS_IMETHOD SetFocus(nsIPresContext* aPresContext);
NS_IMETHOD RemoveFocus(nsIPresContext* aPresContext);
// nsIStyleRule interface. The node implements this to deal with attributes that
// need to be mapped into style contexts (e.g., width in treecols).
NS_IMETHOD GetStyleSheet(nsIStyleSheet*& aSheet) const;
NS_IMETHOD GetStrength(PRInt32& aStrength) const;
NS_IMETHOD MapFontStyleInto(nsIStyleContext* aContext, nsIPresContext* aPresContext);
NS_IMETHOD MapStyleInto(nsIStyleContext* aContext, nsIPresContext* aPresContext);
// nsIJSScriptObject
virtual PRBool AddProperty(JSContext *aContext, jsval aID, jsval *aVp);
virtual PRBool DeleteProperty(JSContext *aContext, jsval aID, jsval *aVp);
@ -369,6 +382,12 @@ public:
static nsresult
ExecuteJSCode(nsIDOMElement* anElement);
// Used with treecol width attributes
static ParseNumericValue(const nsString& aString,
PRInt32& aIntValue,
float& aFloatValue,
nsHTMLUnit& aValueUnit);
static nsresult
GetElementsByTagName(nsIDOMNode* aNode,
const nsString& aTagName,
@ -405,6 +424,7 @@ private:
static nsIAtom* kTreeRowAtom;
static nsIAtom* kTreeCellAtom;
static nsIAtom* kTreeChildrenAtom;
static nsIAtom* kTreeColAtom;
static nsIAtom* kTitledButtonAtom;
@ -453,6 +473,7 @@ nsIAtom* RDFElementImpl::kTreeItemAtom;
nsIAtom* RDFElementImpl::kTreeRowAtom;
nsIAtom* RDFElementImpl::kTreeCellAtom;
nsIAtom* RDFElementImpl::kTreeChildrenAtom;
nsIAtom* RDFElementImpl::kTreeColAtom;
nsIAtom* RDFElementImpl::kSelectedAtom;
nsIAtom* RDFElementImpl::kTitledButtonAtom;
nsIAtom* RDFElementImpl::kPopupAtom;
@ -548,6 +569,7 @@ RDFElementImpl::RDFElementImpl(PRInt32 aNameSpaceID, nsIAtom* aTag)
kTreeRowAtom = NS_NewAtom("treerow");
kTreeCellAtom = NS_NewAtom("treecell");
kTreeChildrenAtom = NS_NewAtom("treechildren");
kTreeColAtom = NS_NewAtom("treecol");
kSelectedAtom = NS_NewAtom("selected");
kTitledButtonAtom = NS_NewAtom("titledbutton");
kPopupAtom = NS_NewAtom("popup");
@ -631,6 +653,7 @@ RDFElementImpl::~RDFElementImpl()
NS_IF_RELEASE(kTreeRowAtom);
NS_IF_RELEASE(kTreeCellAtom);
NS_IF_RELEASE(kTreeChildrenAtom);
NS_IF_RELEASE(kTreeColAtom);
NS_IF_RELEASE(kSelectedAtom);
NS_IF_RELEASE(kTitledButtonAtom);
NS_IF_RELEASE(kPopupAtom);
@ -715,6 +738,9 @@ RDFElementImpl::QueryInterface(REFNSIID iid, void** result)
IsFocusableContent()) {
*result = NS_STATIC_CAST(nsIFocusableContent*, this);
}
else if (iid.Equals(nsIStyleRule::GetIID())) {
*result = NS_STATIC_CAST(nsIStyleRule*, this);
}
else if ((iid.Equals(nsIDOMXULTreeElement::GetIID()) ||
iid.Equals(nsIXULTreeContent::GetIID())) &&
(mNameSpaceID == kNameSpaceID_XUL) &&
@ -3389,6 +3415,22 @@ RDFElementImpl::HasClass(nsIAtom* aClass) const
NS_IMETHODIMP
RDFElementImpl::GetContentStyleRules(nsISupportsArray* aRules)
{
// For treecols, we support proportional widths using the WIDTH attribute.
if (mTag == kTreeColAtom) {
// If the width attribute is set, then we should return ourselves as a style
// rule.
nsCOMPtr<nsIAtom> widthAtom = dont_AddRef(NS_NewAtom("width"));
nsAutoString width;
GetAttribute(kNameSpaceID_None, widthAtom, width);
if (width != "") {
// XXX This should ultimately be factored out if we find that
// a bunch of XUL widgets are implementing attributes that need
// to be mapped into style. I'm hoping treecol will be the only
// one that needs to do this though.
// QI ourselves to be an nsIStyleRule.
aRules->AppendElement((nsIStyleRule*)this);
}
}
return NS_OK;
}
@ -3537,3 +3579,102 @@ RDFElementImpl::IsFocusableContent()
return (mTag == kTitledButtonAtom) ||
(mTag == kTreeAtom);
}
// nsIStyleRule interface
NS_IMETHODIMP
RDFElementImpl::GetStyleSheet(nsIStyleSheet*& aSheet) const
{
nsresult rv = NS_OK;
aSheet = nsnull;
if (mDocument) {
nsCOMPtr<nsIHTMLContentContainer> container = do_QueryInterface(mDocument);
if (container) {
nsCOMPtr<nsIHTMLStyleSheet> htmlStyleSheet;
rv = container->GetAttributeStyleSheet(getter_AddRefs(htmlStyleSheet));
if (NS_FAILED(rv))
return rv;
nsCOMPtr<nsIStyleSheet> styleSheet = do_QueryInterface(htmlStyleSheet);
aSheet = styleSheet;
NS_IF_ADDREF(aSheet);
}
}
return rv;
}
NS_IMETHODIMP
RDFElementImpl::GetStrength(PRInt32& aStrength) const
{
return NS_OK;
}
NS_IMETHODIMP
RDFElementImpl::MapFontStyleInto(nsIStyleContext* aContext, nsIPresContext* aPresContext)
{
return NS_OK;
}
NS_IMETHODIMP
RDFElementImpl::MapStyleInto(nsIStyleContext* aContext, nsIPresContext* aPresContext)
{
if (mTag == kTreeColAtom) {
// Should only get called if we had a width attribute set. Retrieve it.
nsAutoString widthVal;
GetAttribute("width", widthVal);
if (widthVal != "") {
PRInt32 intVal;
float floatVal;
nsHTMLUnit unit = eHTMLUnit_Null;
if (ParseNumericValue(widthVal, intVal, floatVal, unit)) {
// Success. Update the width for the style context.
nsStylePosition* position = (nsStylePosition*)
aContext->GetMutableStyleData(eStyleStruct_Position);
switch (unit) {
case eHTMLUnit_Percent:
position->mWidth.SetPercentValue(floatVal);
break;
case eHTMLUnit_Pixel:
float p2t;
aPresContext->GetScaledPixelsToTwips(&p2t);
position->mWidth.SetCoordValue(NSIntPixelsToTwips(intVal, p2t));
break;
case eHTMLUnit_Proportional:
position->mWidth.SetIntValue(intVal, eStyleUnit_Proportional);
break;
default:
break;
}
}
}
}
return NS_OK;
}
PRBool
RDFElementImpl::ParseNumericValue(const nsString& aString,
PRInt32& aIntValue,
float& aFloatValue,
nsHTMLUnit& aValueUnit)
{
nsAutoString tmp(aString);
tmp.CompressWhitespace(PR_TRUE, PR_TRUE);
PRInt32 ec, val = tmp.ToInteger(&ec);
if (NS_OK == ec) {
if (val < 0) val = 0;
if (tmp.Last() == '%') {/* XXX not 100% compatible with ebina's code */
if (val > 100) val = 100;
aFloatValue = (float(val)/100.0f);
aValueUnit = eHTMLUnit_Percent;
} else if (tmp.Last() == '*') {
aIntValue = val;
aValueUnit = eHTMLUnit_Proportional;
} else {
aIntValue = val;
aValueUnit = eHTMLUnit_Pixel;
}
return PR_TRUE;
}
return PR_FALSE;
}

143
rdf/content/src/nsXULElement.cpp
View File

@ -34,6 +34,7 @@
#include "nsDOMEvent.h"
#include "nsXULAttributes.h"
#include "nsIXULPopupListener.h"
#include "nsIHTMLContentContainer.h"
#include "nsHashtable.h"
#include "nsIPresShell.h"
#include "nsIAtom.h"
@ -65,6 +66,8 @@
#include "nsRDFContentUtils.h"
#include "nsRDFDOMNodeList.h"
#include "nsStyleConsts.h"
#include "nsIStyleSheet.h"
#include "nsIHTMLStyleSheet.h"
#include "nsIDOMMouseListener.h"
#include "nsIDOMMouseMotionListener.h"
#include "nsIDOMLoadListener.h"
@ -75,6 +78,7 @@
#include "nsIDOMMenuListener.h"
#include "nsIScriptContextOwner.h"
#include "nsIStyledContent.h"
#include "nsIStyleContext.h"
#include "nsIFocusableContent.h"
#include "nsIStyleRule.h"
#include "nsIURL.h"
@ -83,6 +87,7 @@
#include "rdfutil.h"
#include "prlog.h"
#include "rdf.h"
#include "nsHTMLValue.h"
#include "nsIController.h"
@ -227,7 +232,8 @@ class RDFElementImpl : public nsIDOMXULElement,
public nsIStyledContent,
public nsIXMLContent,
public nsIXULContent,
public nsIFocusableContent
public nsIFocusableContent,
public nsIStyleRule
{
public:
RDFElementImpl(PRInt32 aNameSpaceID, nsIAtom* aTag);
@ -341,6 +347,13 @@ public:
NS_IMETHOD SetFocus(nsIPresContext* aPresContext);
NS_IMETHOD RemoveFocus(nsIPresContext* aPresContext);
// nsIStyleRule interface. The node implements this to deal with attributes that
// need to be mapped into style contexts (e.g., width in treecols).
NS_IMETHOD GetStyleSheet(nsIStyleSheet*& aSheet) const;
NS_IMETHOD GetStrength(PRInt32& aStrength) const;
NS_IMETHOD MapFontStyleInto(nsIStyleContext* aContext, nsIPresContext* aPresContext);
NS_IMETHOD MapStyleInto(nsIStyleContext* aContext, nsIPresContext* aPresContext);
// nsIJSScriptObject
virtual PRBool AddProperty(JSContext *aContext, jsval aID, jsval *aVp);
virtual PRBool DeleteProperty(JSContext *aContext, jsval aID, jsval *aVp);
@ -369,6 +382,12 @@ public:
static nsresult
ExecuteJSCode(nsIDOMElement* anElement);
// Used with treecol width attributes
static ParseNumericValue(const nsString& aString,
PRInt32& aIntValue,
float& aFloatValue,
nsHTMLUnit& aValueUnit);
static nsresult
GetElementsByTagName(nsIDOMNode* aNode,
const nsString& aTagName,
@ -405,6 +424,7 @@ private:
static nsIAtom* kTreeRowAtom;
static nsIAtom* kTreeCellAtom;
static nsIAtom* kTreeChildrenAtom;
static nsIAtom* kTreeColAtom;
static nsIAtom* kTitledButtonAtom;
@ -453,6 +473,7 @@ nsIAtom* RDFElementImpl::kTreeItemAtom;
nsIAtom* RDFElementImpl::kTreeRowAtom;
nsIAtom* RDFElementImpl::kTreeCellAtom;
nsIAtom* RDFElementImpl::kTreeChildrenAtom;
nsIAtom* RDFElementImpl::kTreeColAtom;
nsIAtom* RDFElementImpl::kSelectedAtom;
nsIAtom* RDFElementImpl::kTitledButtonAtom;
nsIAtom* RDFElementImpl::kPopupAtom;
@ -548,6 +569,7 @@ RDFElementImpl::RDFElementImpl(PRInt32 aNameSpaceID, nsIAtom* aTag)
kTreeRowAtom = NS_NewAtom("treerow");
kTreeCellAtom = NS_NewAtom("treecell");
kTreeChildrenAtom = NS_NewAtom("treechildren");
kTreeColAtom = NS_NewAtom("treecol");
kSelectedAtom = NS_NewAtom("selected");
kTitledButtonAtom = NS_NewAtom("titledbutton");
kPopupAtom = NS_NewAtom("popup");
@ -631,6 +653,7 @@ RDFElementImpl::~RDFElementImpl()
NS_IF_RELEASE(kTreeRowAtom);
NS_IF_RELEASE(kTreeCellAtom);
NS_IF_RELEASE(kTreeChildrenAtom);
NS_IF_RELEASE(kTreeColAtom);
NS_IF_RELEASE(kSelectedAtom);
NS_IF_RELEASE(kTitledButtonAtom);
NS_IF_RELEASE(kPopupAtom);
@ -715,6 +738,9 @@ RDFElementImpl::QueryInterface(REFNSIID iid, void** result)
IsFocusableContent()) {
*result = NS_STATIC_CAST(nsIFocusableContent*, this);
}
else if (iid.Equals(nsIStyleRule::GetIID())) {
*result = NS_STATIC_CAST(nsIStyleRule*, this);
}
else if ((iid.Equals(nsIDOMXULTreeElement::GetIID()) ||
iid.Equals(nsIXULTreeContent::GetIID())) &&
(mNameSpaceID == kNameSpaceID_XUL) &&
@ -3389,6 +3415,22 @@ RDFElementImpl::HasClass(nsIAtom* aClass) const
NS_IMETHODIMP
RDFElementImpl::GetContentStyleRules(nsISupportsArray* aRules)
{
// For treecols, we support proportional widths using the WIDTH attribute.
if (mTag == kTreeColAtom) {
// If the width attribute is set, then we should return ourselves as a style
// rule.
nsCOMPtr<nsIAtom> widthAtom = dont_AddRef(NS_NewAtom("width"));
nsAutoString width;
GetAttribute(kNameSpaceID_None, widthAtom, width);
if (width != "") {
// XXX This should ultimately be factored out if we find that
// a bunch of XUL widgets are implementing attributes that need
// to be mapped into style. I'm hoping treecol will be the only
// one that needs to do this though.
// QI ourselves to be an nsIStyleRule.
aRules->AppendElement((nsIStyleRule*)this);
}
}
return NS_OK;
}
@ -3537,3 +3579,102 @@ RDFElementImpl::IsFocusableContent()
return (mTag == kTitledButtonAtom) ||
(mTag == kTreeAtom);
}
// nsIStyleRule interface
NS_IMETHODIMP
RDFElementImpl::GetStyleSheet(nsIStyleSheet*& aSheet) const
{
nsresult rv = NS_OK;
aSheet = nsnull;
if (mDocument) {
nsCOMPtr<nsIHTMLContentContainer> container = do_QueryInterface(mDocument);
if (container) {
nsCOMPtr<nsIHTMLStyleSheet> htmlStyleSheet;
rv = container->GetAttributeStyleSheet(getter_AddRefs(htmlStyleSheet));
if (NS_FAILED(rv))
return rv;
nsCOMPtr<nsIStyleSheet> styleSheet = do_QueryInterface(htmlStyleSheet);
aSheet = styleSheet;
NS_IF_ADDREF(aSheet);
}
}
return rv;
}
NS_IMETHODIMP
RDFElementImpl::GetStrength(PRInt32& aStrength) const
{
return NS_OK;
}
NS_IMETHODIMP
RDFElementImpl::MapFontStyleInto(nsIStyleContext* aContext, nsIPresContext* aPresContext)
{
return NS_OK;
}
NS_IMETHODIMP
RDFElementImpl::MapStyleInto(nsIStyleContext* aContext, nsIPresContext* aPresContext)
{
if (mTag == kTreeColAtom) {
// Should only get called if we had a width attribute set. Retrieve it.
nsAutoString widthVal;
GetAttribute("width", widthVal);
if (widthVal != "") {
PRInt32 intVal;
float floatVal;
nsHTMLUnit unit = eHTMLUnit_Null;
if (ParseNumericValue(widthVal, intVal, floatVal, unit)) {
// Success. Update the width for the style context.
nsStylePosition* position = (nsStylePosition*)
aContext->GetMutableStyleData(eStyleStruct_Position);
switch (unit) {
case eHTMLUnit_Percent:
position->mWidth.SetPercentValue(floatVal);
break;
case eHTMLUnit_Pixel:
float p2t;
aPresContext->GetScaledPixelsToTwips(&p2t);
position->mWidth.SetCoordValue(NSIntPixelsToTwips(intVal, p2t));
break;
case eHTMLUnit_Proportional:
position->mWidth.SetIntValue(intVal, eStyleUnit_Proportional);
break;
default:
break;
}
}
}
}
return NS_OK;
}
PRBool
RDFElementImpl::ParseNumericValue(const nsString& aString,
PRInt32& aIntValue,
float& aFloatValue,
nsHTMLUnit& aValueUnit)
{
nsAutoString tmp(aString);
tmp.CompressWhitespace(PR_TRUE, PR_TRUE);
PRInt32 ec, val = tmp.ToInteger(&ec);
if (NS_OK == ec) {
if (val < 0) val = 0;
if (tmp.Last() == '%') {/* XXX not 100% compatible with ebina's code */
if (val > 100) val = 100;
aFloatValue = (float(val)/100.0f);
aValueUnit = eHTMLUnit_Percent;
} else if (tmp.Last() == '*') {
aIntValue = val;
aValueUnit = eHTMLUnit_Proportional;
} else {
aIntValue = val;
aValueUnit = eHTMLUnit_Pixel;
}
return PR_TRUE;
}
return PR_FALSE;
}