status_t
icon_for_type(const BMimeType& type, uint8** _data, size_t* _size,
icon_source* _source)
{
if (_data == NULL || _size == NULL)
return B_BAD_VALUE;
icon_source source = kNoIcon;
uint8* data;
size_t size;
if (type.GetIcon(&data, &size) == B_OK)
source = kOwnIcon;
if (source == kNoIcon) {
// check for icon from preferred app
char preferred[B_MIME_TYPE_LENGTH];
if (type.GetPreferredApp(preferred) == B_OK) {
BMimeType preferredApp(preferred);
if (preferredApp.GetIconForType(type.Type(), &data, &size) == B_OK)
source = kApplicationIcon;
}
}
if (source == kNoIcon) {
// check super type for an icon
BMimeType superType;
if (type.GetSupertype(&superType) == B_OK) {
if (superType.GetIcon(&data, &size) == B_OK)
source = kSupertypeIcon;
else {
// check the super type's preferred app
char preferred[B_MIME_TYPE_LENGTH];
if (superType.GetPreferredApp(preferred) == B_OK) {
BMimeType preferredApp(preferred);
if (preferredApp.GetIconForType(superType.Type(),
&data, &size) == B_OK)
source = kSupertypeIcon;
}
}
}
}
if (source != kNoIcon) {
*_data = data;
*_size = size;
} // NOTE: else there is no data, so nothing is leaked.
if (_source)
*_source = source;
return source != kNoIcon ? B_OK : B_ERROR;
}
static status_t
GetTrackerIcon(BMimeType &type, BBitmap *icon, icon_size iconSize)
{
// set some icon size related variables
status_t error = B_OK;
BRect bounds;
switch (iconSize) {
case B_MINI_ICON:
bounds.Set(0, 0, 15, 15);
break;
case B_LARGE_ICON:
bounds.Set(0, 0, 31, 31);
break;
default:
error = B_BAD_VALUE;
break;
}
// check parameters and initialization
if (error == B_OK
&& (!icon || icon->InitCheck() != B_OK || icon->Bounds() != bounds))
return B_BAD_VALUE;
bool success = false;
// Ask the MIME database for the preferred application for the file type
// and whether this application has a special icon for the type.
char signature[B_MIME_TYPE_LENGTH];
if (type.GetPreferredApp(signature) == B_OK) {
BMimeType type(signature);
success = (type.GetIconForType(type.Type(), icon, iconSize) == B_OK);
}
// Ask the MIME database whether there is an icon for the node's file type.
if (error == B_OK && !success)
success = (type.GetIcon(icon, iconSize) == B_OK);
// Ask the MIME database for the super type and start all over
if (error == B_OK && !success) {
BMimeType super;
if (type.GetSupertype(&super) == B_OK)
return GetTrackerIcon(super, icon, iconSize);
}
// Return the icon for "application/octet-stream" from the MIME database.
if (error == B_OK && !success) {
// get the "application/octet-stream" icon
BMimeType type("application/octet-stream");
error = type.GetIcon(icon, iconSize);
}
return error;
}
status_t
icon_for_type(const BMimeType& type, BBitmap& bitmap, icon_size size,
icon_source* _source)
{
icon_source source = kNoIcon;
if (type.GetIcon(&bitmap, size) == B_OK)
source = kOwnIcon;
if (source == kNoIcon) {
// check for icon from preferred app
char preferred[B_MIME_TYPE_LENGTH];
if (type.GetPreferredApp(preferred) == B_OK) {
BMimeType preferredApp(preferred);
if (preferredApp.GetIconForType(type.Type(), &bitmap, size) == B_OK)
source = kApplicationIcon;
}
}
if (source == kNoIcon) {
// check super type for an icon
BMimeType superType;
if (type.GetSupertype(&superType) == B_OK) {
if (superType.GetIcon(&bitmap, size) == B_OK)
source = kSupertypeIcon;
else {
// check the super type's preferred app
char preferred[B_MIME_TYPE_LENGTH];
if (superType.GetPreferredApp(preferred) == B_OK) {
BMimeType preferredApp(preferred);
if (preferredApp.GetIconForType(superType.Type(),
&bitmap, size) == B_OK)
source = kSupertypeIcon;
}
}
}
}
if (_source)
*_source = source;
return source != kNoIcon ? B_OK : B_ERROR;
}
bool
FileIterator::_ExamineFile(BEntry& entry, char* buffer, bool textFilesOnly)
{
BPath path;
if (entry.GetPath(&path) != B_OK)
return false;
strcpy(buffer, path.Path());
if (!textFilesOnly)
return true;
BMimeType mimeType;
BNode node(&entry);
BNodeInfo nodeInfo(&node);
char mimeTypeString[B_MIME_TYPE_LENGTH];
if (nodeInfo.GetType(mimeTypeString) != B_OK) {
// try to get a MIME type before failing
if (BMimeType::GuessMimeType(path.Path(), &mimeType) != B_OK)
return false;
nodeInfo.SetType(mimeType.Type());
} else
mimeType.SetTo(mimeTypeString);
BMimeType superType;
if (mimeType.GetSupertype(&superType) == B_OK) {
if (strcmp("text", superType.Type()) == 0
|| strcmp("message", superType.Type()) == 0) {
return true;
}
}
return false;
}