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Implement the proposed Web Apps 1.0 API for changing the selected style sheet

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set, querying the available sets, etc.  Bug 200930, r=sicking, sr=dbaron


git-svn-id: svn://10.0.0.236/trunk@218215 18797224-902f-48f8-a5cc-f745e15eee43
This commit is contained in:
bzbarsky%mit.edu
2007-01-11 19:32:31 +00:00
parent 8c9c385d6d
commit 8c351facb0
12 changed files with 389 additions and 175 deletions
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32
mozilla/layout/style/nsCSSLoader.cpp
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@@ -52,6 +52,7 @@
#include "nsIDOMNode.h"
#include "nsIDOMWindow.h"
#include "nsIDocument.h"
#include "nsIDOMNSDocumentStyle.h"
#include "nsIUnicharInputStream.h"
#include "nsIConverterInputStream.h"
#include "nsICharsetAlias.h"
@@ -292,11 +293,16 @@ CSSLoaderImpl::Init(nsIDocument* aDocument)
{
NS_ASSERTION(! mDocument, "already initialized");
if (! mDocument) {
mDocument = aDocument;
return NS_OK;
mDocument = aDocument;
// We can just use the preferred set, since there are no sheets in the
// document yet (if there are, how did they get there? _we_ load the sheets!)
// and hence the selected set makes no sense at this time.
nsCOMPtr<nsIDOMNSDocumentStyle> domDoc(do_QueryInterface(mDocument));
if (domDoc) {
domDoc->GetPreferredStyleSheetSet(mPreferredSheet);
}
return NS_ERROR_ALREADY_INITIALIZED;
return NS_OK;
}
PR_STATIC_CALLBACK(PLDHashOperator)
@@ -353,6 +359,19 @@ StartNonAlternates(nsIURI *aKey, SheetLoadData* &aData, void* aClosure)
NS_IMETHODIMP
CSSLoaderImpl::SetPreferredSheet(const nsAString& aTitle)
{
#ifdef DEBUG
nsCOMPtr<nsIDOMNSDocumentStyle> doc(do_QueryInterface(mDocument));
if (doc) {
nsAutoString currentPreferred;
doc->GetLastStyleSheetSet(currentPreferred);
if (DOMStringIsNull(currentPreferred)) {
doc->GetPreferredStyleSheetSet(currentPreferred);
}
NS_ASSERTION(currentPreferred.Equals(aTitle),
"Unexpected argument to SetPreferredSheet");
}
#endif
mPreferredSheet = aTitle;
// start any pending alternates that aren't alternates anymore
@@ -865,15 +884,12 @@ CSSLoaderImpl::IsAlternate(const nsAString& aTitle, PRBool aHasAlternateRel)
if (!aHasAlternateRel && mDocument && mPreferredSheet.IsEmpty()) {
// There's no preferred set yet, and we now have a sheet with a title.
// Make that be the preferred set.
// XXXbz maybe this should be checking IsVoid(), actually, since the
// preferred set can be explicitly set to the empty string. Look into
// this.
mDocument->SetHeaderData(nsGkAtoms::headerDefaultStyle, aTitle);
// We're definitely not an alternate
return PR_FALSE;
}
return !aTitle.Equals(mPreferredSheet, nsCaseInsensitiveStringComparator());
return !aTitle.Equals(mPreferredSheet);
}
/**