1 files changed, 88 insertions, 0 deletions
diff --git a/Sources/Data/OwlPasteboardDataOffer.m b/Sources/Data/OwlPasteboardDataOffer.m
new file mode 100644
index 0000000..e6b9180
--- /dev/null
+++ b/Sources/Data/OwlPasteboardDataOffer.m
@@ -0,0 +1,88 @@
+/* This file is part of Owl.
+ *
+ * Copyright © 2019-2021 Sergey Bugaev <bugaevc@gmail.com>
+ *
+ * Owl is free software: you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published
+ * by the Free Software Foundation, either version 3 of the License,
+ * or (at your option) any later version.
+ *
+ * Owl is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with Owl.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#import "OwlPasteboardDataOffer.h"
+#import "OwlDataOffer.h"
+#import "OwlPasteboardDataDevice.h"
+#import "OwlPasteboardType.h"
+#import "OwlServer.h"
+#import "OwlDataDevice.h"
+#import "OwlSelection.h"
+#import <wayland-server.h>
+
+
+@implementation OwlPasteboardDataOffer
+
+- (id) initWithDataDevice: (OwlPasteboardDataDevice *) device
+               dataSource: (OwlDataSource *) dataSource
+{
+    _types = [NSMutableArray new];
+    _dataDevice = [device retain];
+    // The parent constructor fills in types.
+    [super initWithResource: NULL dataSource: dataSource];
+    [[device pasteboard] declareTypes: _types owner: self];
+    return self;
+}
+
+- (void) dealloc {
+    [_types release];
+    [_dataDevice release];
+    [super dealloc];
+}
+
+- (void) addMimeType: (NSString *) mimeType {
+    OwlPasteboardType *type = [[OwlPasteboardType alloc] initWithMimeType: mimeType];
+    [_types addObject: [type UTI]];
+    [type release];
+}
+
+- (void) pasteboard: (NSPasteboard *) pasteboard
+ provideDataForType: (NSString *) uti
+{
+    OwlPasteboardType *type = [[[OwlPasteboardType alloc] initWithUTI: uti] autorelease];
+    NSString *mimeType = [type mimeType];
+    if (mimeType == nil) {
+        // We can't meaningfully convert this UTI to a MIME type.
+        // Refuse to provide the data, and hope for the better.
+        return;
+    }
+
+    NSPipe *pipe = [NSPipe pipe];
+    NSFileHandle *writingHandle = [pipe fileHandleForWriting];
+    [_dataSource sendContentOfMimeType: mimeType
+                          toFileHandle: writingHandle];
+    [writingHandle closeFile];
+    [[OwlServer sharedServer] flushClients];
+
+    // Sigh, it seems there's no other way but to do this synchronously.
+    NSData *data = [[pipe fileHandleForReading] readDataToEndOfFile];
+    if ([type isText]) {
+        NSString *s = [[NSString alloc] initWithData: data
+                                            encoding: NSUTF8StringEncoding];
+        [pasteboard setString: s forType: uti];
+        [s release];
+    } else {
+        [pasteboard setData: data forType: uti];
+    }
+}
+
+- (void) pasteboardChangedOwner: (NSPasteboard *) pasteboard {
+    [_dataDevice pasteboardRefreshed];
+}
+
+@end