1 files changed, 103 insertions, 0 deletions
diff --git a/Sources/Data/OwlPasteboardType.m b/Sources/Data/OwlPasteboardType.m
new file mode 100644
index 0000000..888e8bb
--- /dev/null
+++ b/Sources/Data/OwlPasteboardType.m
@@ -0,0 +1,103 @@
+/* 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 "OwlPasteboardType.h"
+#import "OwlFeatures.h"
+
+
+@implementation OwlPasteboardType
+
+static NSArray *extraTextTypes;
+
++ (void) initialize {
+    if (extraTextTypes == nil) {
+        extraTextTypes = [[NSArray alloc] initWithObjects:
+            @"TEXT",
+            @"STRING",
+            @"UTF8_STRING",
+            nil
+        ];
+    }
+}
+
+- (id) initWithMimeType: (NSString *) type {
+    _mimeType = [type retain];
+    return self;
+}
+
+- (id) initWithUTI: (NSString *) UTI {
+    _uti = [UTI retain];
+    return self;
+}
+
+- (void) dealloc {
+    [_mimeType release];
+    [_uti release];
+    [super dealloc];
+}
+
+- (NSString *) mimeType {
+    if (_mimeType == nil) {
+        if ([_uti isEqual: NSStringPboardType]) {
+            _mimeType = [@"text/plain" retain];
+        } else if ([_uti isEqual: @"public.utf8-plain-text"]) {
+            _mimeType = [@"text/plain;charset=utf-8" retain];
+        } else {
+#ifdef OWL_PLATFORM_APPLE
+            _mimeType = (NSString *) UTTypeCopyPreferredTagWithClass(
+                (CFStringRef) _uti,
+                kUTTagClassMIMEType
+            );
+#else
+            _mimeType = [_uti retain];
+#endif
+        }
+    }
+
+    return _mimeType;
+}
+
+- (NSString *) UTI {
+    if (_uti == nil) {
+        if (
+            [_mimeType hasPrefix: @"text/plain"] ||
+            [extraTextTypes containsObject: _mimeType]
+        ) {
+            _uti = [NSStringPboardType retain];
+        } else {
+#ifdef OWL_PLATFORM_APPLE
+            _uti = (NSString *) UTTypeCreatePreferredIdentifierForTag(
+                kUTTagClassMIMEType,
+                (CFStringRef) _mimeType,
+                NULL
+            );
+#else
+            _uti = [_mimeType retain];
+#endif
+        }
+    }
+
+    return _uti;
+}
+
+- (BOOL) isText {
+    NSString *m = [self mimeType];
+    return [m hasPrefix: @"text/"] || [extraTextTypes containsObject: m];
+}
+
+@end