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lightning-sunbird  0.9+nobinonly
nsDOMWindowUtils.cpp
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00002 /* ***** BEGIN LICENSE BLOCK *****
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00015  * The Original Code is mozilla.org code.
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00024  * Alternatively, the contents of this file may be used under the terms of
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00037 
00038 #include "nsIDocShell.h"
00039 #include "nsPresContext.h"
00040 
00041 #include "nsDOMWindowUtils.h"
00042 #include "nsGlobalWindow.h"
00043 #include "nsIDocument.h"
00044 
00045 NS_INTERFACE_MAP_BEGIN(nsDOMWindowUtils)
00046   NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, nsIDOMWindowUtils)
00047   NS_INTERFACE_MAP_ENTRY(nsIDOMWindowUtils)
00048   NS_INTERFACE_MAP_ENTRY(nsISupportsWeakReference)
00049 NS_INTERFACE_MAP_END
00050 
00051 NS_IMPL_ADDREF(nsDOMWindowUtils)
00052 NS_IMPL_RELEASE(nsDOMWindowUtils)
00053 
00054 nsDOMWindowUtils::nsDOMWindowUtils(nsGlobalWindow *aWindow)
00055   : mWindow(aWindow)
00056 {
00057 }
00058 
00059 nsDOMWindowUtils::~nsDOMWindowUtils()
00060 {
00061 }
00062 
00063 NS_IMETHODIMP
00064 nsDOMWindowUtils::GetImageAnimationMode(PRUint16 *aMode)
00065 {
00066   NS_ENSURE_ARG_POINTER(aMode);
00067   *aMode = 0;
00068   if (mWindow) {
00069     nsIDocShell *docShell = mWindow->GetDocShell();
00070     if (docShell) {
00071       nsCOMPtr<nsPresContext> presContext;
00072       docShell->GetPresContext(getter_AddRefs(presContext));
00073       if (presContext) {
00074         *aMode = presContext->ImageAnimationMode();
00075         return NS_OK;
00076       }
00077     }
00078   }
00079   return NS_ERROR_NOT_AVAILABLE;
00080 }
00081 
00082 NS_IMETHODIMP
00083 nsDOMWindowUtils::SetImageAnimationMode(PRUint16 aMode)
00084 {
00085   if (mWindow) {
00086     nsIDocShell *docShell = mWindow->GetDocShell();
00087     if (docShell) {
00088       nsCOMPtr<nsPresContext> presContext;
00089       docShell->GetPresContext(getter_AddRefs(presContext));
00090       if (presContext) {
00091         presContext->SetImageAnimationMode(aMode);
00092         return NS_OK;
00093       }
00094     }
00095   }
00096   return NS_ERROR_NOT_AVAILABLE;
00097 }
00098 
00099 NS_IMETHODIMP
00100 nsDOMWindowUtils::GetDocumentMetadata(const nsAString& aName,
00101                                       nsAString& aValue)
00102 {
00103   if (mWindow) {
00104     nsCOMPtr<nsIDocument> doc(do_QueryInterface(mWindow->GetExtantDocument()));
00105     if (doc) {
00106       nsCOMPtr<nsIAtom> name = do_GetAtom(aName);
00107       doc->GetHeaderData(name, aValue);
00108       return NS_OK;
00109     }
00110   }
00111   
00112   aValue.Truncate();
00113   return NS_OK;
00114 }