GnomeVFSResult
nsGnomeVFSInputStream::DoOpen()
{
GnomeVFSResult rv;
NS_ASSERTION(mHandle == nsnull, "already open");
// Push a callback handler on the stack for this thread, so we can intercept
// authentication requests from GnomeVFS. We'll use the channel to get a
// nsIAuthPrompt instance.
gnome_vfs_module_callback_push(GNOME_VFS_MODULE_CALLBACK_AUTHENTICATION,
AuthCallback, mChannel, NULL);
// Query the mime type first (this could return NULL).
//
// XXX We need to do this up-front in order to determine how to open the URI.
// Unfortunately, the error code GNOME_VFS_ERROR_IS_DIRECTORY is not
// always returned by gnome_vfs_open when we pass it a URI to a directory!
// Otherwise, we could have used that as a way to failover to opening the
// URI as a directory. Also, it would have been ideal if
// gnome_vfs_get_file_info_from_handle were actually implemented by the
// smb:// module, since that would have allowed us to potentially save a
// round trip to the server to discover the mime type of the document in
// the case where gnome_vfs_open would have been used. (Oh well! /me
// throws hands up in the air and moves on...)
GnomeVFSFileInfo info = {0};
rv = gnome_vfs_get_file_info(mSpec.get(), &info, GnomeVFSFileInfoOptions(
GNOME_VFS_FILE_INFO_DEFAULT |
GNOME_VFS_FILE_INFO_FOLLOW_LINKS));
if (rv == GNOME_VFS_OK)
{
if (info.type == GNOME_VFS_FILE_TYPE_DIRECTORY)
{
rv = gnome_vfs_directory_list_load(&mDirList, mSpec.get(),
GNOME_VFS_FILE_INFO_DEFAULT);
LOG(("gnomevfs: gnome_vfs_directory_list_load returned %d (%s) [spec=\"%s\"]\n",
rv, gnome_vfs_result_to_string(rv), mSpec.get()));
}
else
{
rv = gnome_vfs_open(&mHandle, mSpec.get(), GNOME_VFS_OPEN_READ);
LOG(("gnomevfs: gnome_vfs_open returned %d (%s) [spec=\"%s\"]\n",
rv, gnome_vfs_result_to_string(rv), mSpec.get()));
}
}
gnome_vfs_module_callback_pop(GNOME_VFS_MODULE_CALLBACK_AUTHENTICATION);
if (rv == GNOME_VFS_OK)
{
if (mHandle)
{
// Here we set the content type of the channel to the value of the mime
// type determined by GnomeVFS. However, if GnomeVFS is telling us that
// the document is binary, we'll ignore that and keep the channel's
// content type unspecified. That will enable our content type sniffing
// algorithms. This should provide more consistent mime type handling.
if (info.mime_type && (strcmp(info.mime_type, APPLICATION_OCTET_STREAM) != 0))
SetContentTypeOfChannel(info.mime_type);
mBytesRemaining = info.size;
// Update the content length attribute on the channel. We do this
// synchronously without proxying. This hack is not as bad as it looks!
if (mBytesRemaining != PRUint64(-1))
mChannel->SetContentLength(mBytesRemaining);
}
else
{
mDirOpen = PR_TRUE;
// Sort mDirList
mDirList = g_list_sort(mDirList, FileInfoComparator);
mDirListPtr = mDirList;
// Write base URL (make sure it ends with a '/')
mDirBuf.Append("300: ");
mDirBuf.Append(mSpec);
if (mSpec.get()[mSpec.Length() - 1] != '/')
mDirBuf.Append('/');
mDirBuf.Append('\n');
// Write column names
mDirBuf.Append("200: filename content-length last-modified file-type\n");
// Write charset (assume UTF-8)
// XXX is this correct?
mDirBuf.Append("301: UTF-8\n");
SetContentTypeOfChannel(APPLICATION_HTTP_INDEX_FORMAT);
}
}
gnome_vfs_file_info_clear(&info);
return rv;
}
nsresult
nsIconChannel::InitWithGnome(nsIMozIconURI *aIconURI)
{
nsresult rv;
if (!gnome_program_get()) {
// Get the brandShortName from the string bundle to pass to GNOME
// as the application name. This may be used for things such as
// the title of grouped windows in the panel.
nsCOMPtr<nsIStringBundleService> bundleService =
do_GetService(NS_STRINGBUNDLE_CONTRACTID);
NS_ASSERTION(bundleService, "String bundle service must be present!");
nsCOMPtr<nsIStringBundle> bundle;
bundleService->CreateBundle("chrome://branding/locale/brand.properties",
getter_AddRefs(bundle));
nsXPIDLString appName;
if (bundle) {
bundle->GetStringFromName(NS_LITERAL_STRING("brandShortName").get(),
getter_Copies(appName));
} else {
NS_WARNING("brand.properties not present, using default application name");
appName.AssignLiteral("Gecko");
}
char* empty[] = { "" };
gnome_init(NS_ConvertUTF16toUTF8(appName).get(), "1.0", 1, empty);
}
nsCAutoString iconSizeString;
aIconURI->GetIconSize(iconSizeString);
PRUint32 iconSize;
if (iconSizeString.IsEmpty()) {
rv = aIconURI->GetImageSize(&iconSize);
NS_ASSERTION(NS_SUCCEEDED(rv), "GetImageSize failed");
} else {
int size;
GtkIconSize icon_size = moz_gtk_icon_size(iconSizeString.get());
gtk_icon_size_lookup(icon_size, &size, NULL);
iconSize = size;
}
nsCAutoString type;
aIconURI->GetContentType(type);
GnomeVFSFileInfo fileInfo = {0};
fileInfo.refcount = 1; // In case some GnomeVFS function addrefs and releases it
nsCAutoString spec;
nsCOMPtr<nsIURI> fileURI;
rv = aIconURI->GetIconFile(getter_AddRefs(fileURI));
if (fileURI) {
fileURI->GetAsciiSpec(spec);
// Only ask gnome-vfs for a GnomeVFSFileInfo for file: uris, to avoid a
// network request
PRBool isFile;
if (NS_SUCCEEDED(fileURI->SchemeIs("file", &isFile)) && isFile) {
gnome_vfs_get_file_info(spec.get(), &fileInfo, GNOME_VFS_FILE_INFO_DEFAULT);
}
else {
// We have to get a leaf name from our uri...
nsCOMPtr<nsIURL> url(do_QueryInterface(fileURI));
if (url) {
nsCAutoString name;
// The filename we get is UTF-8-compatible, which matches gnome expectations.
// See also: http://lists.gnome.org/archives/gnome-vfs-list/2004-March/msg00049.html
// "Whenever we can detect the charset used for the URI type we try to
// convert it to/from utf8 automatically inside gnome-vfs."
// I'll interpret that as "otherwise, this field is random junk".
url->GetFileName(name);
fileInfo.name = g_strdup(name.get());
}
// If this is no nsIURL, nothing we can do really.
if (!type.IsEmpty()) {
fileInfo.valid_fields = GNOME_VFS_FILE_INFO_FIELDS_MIME_TYPE;
fileInfo.mime_type = g_strdup(type.get());
}
}
}
if (type.IsEmpty()) {
nsCOMPtr<nsIMIMEService> ms(do_GetService("@mozilla.org/mime;1"));
if (ms) {
nsCAutoString fileExt;
aIconURI->GetFileExtension(fileExt);
ms->GetTypeFromExtension(fileExt, type);
}
}
// Get the icon theme
if (!gIconTheme) {
gIconTheme = gnome_icon_theme_new();
if (!gIconTheme) {
gnome_vfs_file_info_clear(&fileInfo);
return NS_ERROR_NOT_AVAILABLE;
}
}
char* name = gnome_icon_lookup(gIconTheme, NULL, spec.get(), NULL, &fileInfo,
type.get(), GNOME_ICON_LOOKUP_FLAGS_NONE,
NULL);
gnome_vfs_file_info_clear(&fileInfo);
if (!name) {
return NS_ERROR_NOT_AVAILABLE;
}
char* file = gnome_icon_theme_lookup_icon(gIconTheme, name, iconSize,
NULL, NULL);
g_free(name);
if (!file)
return NS_ERROR_NOT_AVAILABLE;
// Create a GdkPixbuf buffer and scale it
GError *err = nsnull;
GdkPixbuf* buf = gdk_pixbuf_new_from_file(file, &err);
g_free(file);
if (!buf) {
if (err)
g_error_free(err);
return NS_ERROR_UNEXPECTED;
}
GdkPixbuf* scaled = buf;
if (gdk_pixbuf_get_width(buf) != iconSize &&
gdk_pixbuf_get_height(buf) != iconSize) {
// scale...
scaled = gdk_pixbuf_scale_simple(buf, iconSize, iconSize,
GDK_INTERP_BILINEAR);
gdk_pixbuf_unref(buf);
if (!scaled)
return NS_ERROR_OUT_OF_MEMORY;
}
// XXX Respect icon state
rv = moz_gdk_pixbuf_to_channel(scaled, aIconURI,
getter_AddRefs(mRealChannel));
gdk_pixbuf_unref(scaled);
return rv;
}
