// (static) Creates a ShellLink that encapsulate a shortcut to local apps.
nsresult JumpListShortcut::GetShellLink(nsCOMPtr<nsIJumpListItem>& item, nsRefPtr<IShellLinkW>& aShellLink)
{
HRESULT hr;
IShellLinkW* psl;
nsresult rv;
// Shell links:
// http://msdn.microsoft.com/en-us/library/bb776891(VS.85).aspx
// http://msdn.microsoft.com/en-us/library/bb774950(VS.85).aspx
PRInt16 type;
if (NS_FAILED(item->GetType(&type)))
return NS_ERROR_INVALID_ARG;
if (type != nsIJumpListItem::JUMPLIST_ITEM_SHORTCUT)
return NS_ERROR_INVALID_ARG;
nsCOMPtr<nsIJumpListShortcut> shortcut = do_QueryInterface(item, &rv);
NS_ENSURE_SUCCESS(rv, rv);
nsCOMPtr<nsILocalHandlerApp> handlerApp;
rv = shortcut->GetApp(getter_AddRefs(handlerApp));
NS_ENSURE_SUCCESS(rv, rv);
// Create a IShellLink
hr = CoCreateInstance(CLSID_ShellLink, NULL, CLSCTX_INPROC_SERVER,
IID_IShellLinkW, (LPVOID*)&psl);
if (FAILED(hr))
return NS_ERROR_UNEXPECTED;
// Retrieve the app path, title, description and optional command line args.
nsAutoString appPath, appTitle, appDescription, appArgs;
PRInt32 appIconIndex = 0;
// Path
nsCOMPtr<nsIFile> executable;
handlerApp->GetExecutable(getter_AddRefs(executable));
nsCOMPtr<nsILocalFile> localFile = do_QueryInterface(executable, &rv);
NS_ENSURE_SUCCESS(rv, rv);
rv = localFile->GetPath(appPath);
NS_ENSURE_SUCCESS(rv, rv);
// Command line parameters
PRUint32 count = 0;
handlerApp->GetParameterCount(&count);
for (PRUint32 idx = 0; idx < count; idx++) {
if (idx > 0)
appArgs.Append(NS_LITERAL_STRING(" "));
nsAutoString param;
rv = handlerApp->GetParameter(idx, param);
if (NS_FAILED(rv))
return rv;
appArgs.Append(param);
}
handlerApp->GetName(appTitle);
handlerApp->GetDetailedDescription(appDescription);
shortcut->GetIconIndex(&appIconIndex);
// Store the title of the app
if (appTitle.Length() > 0) {
IPropertyStore* pPropStore = nsnull;
hr = psl->QueryInterface(IID_IPropertyStore, (LPVOID*)&pPropStore);
if (FAILED(hr))
return NS_ERROR_UNEXPECTED;
PROPVARIANT pv;
InitPropVariantFromString(appTitle.get(), &pv);
pPropStore->SetValue(PKEY_Title, pv);
pPropStore->Commit();
pPropStore->Release();
PropVariantClear(&pv);
}
// Store the rest of the params
psl->SetPath(appPath.get());
psl->SetDescription(appDescription.get());
psl->SetArguments(appArgs.get());
psl->SetIconLocation(appPath.get(), appIconIndex);
aShellLink = dont_AddRef(psl);
return NS_OK;
}
