Implementing selection and clipboard functions.

svn path=/trunk/netsurf/; revision=11319

1 files changed, 95 insertions, 0 deletions

diff --git a/cocoa/selection.m b/cocoa/selection.m
new file mode 100644
index 000000000..b19d69f39
--- /dev/null
+++ b/cocoa/selection.m
@@ -0,0 +1,95 @@
+/*
+ * Copyright 2011 Sven Weidauer <sven.weidauer@gmail.com>
+ *
+ * This file is part of NetSurf, http://www.netsurf-browser.org/
+ *
+ * NetSurf 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; version 2 of the License.
+ *
+ * NetSurf 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 this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#import <Cocoa/Cocoa.h>
+
+#import "BrowserWindow.h"
+
+#import "desktop/selection.h"
+
+
+static NSMutableString *cocoa_clipboard_string;
+
+void gui_start_selection(struct gui_window *g)
+{
+	gui_empty_clipboard();
+}
+
+void gui_clear_selection(struct gui_window *g)
+{
+}
+
+
+void gui_paste_from_clipboard(struct gui_window *g, int x, int y)
+{
+	NSPasteboard *pb = [NSPasteboard generalPasteboard];
+	NSString *string = [pb stringForType: NSStringPboardType];
+	if (string) {
+		const char *text = [string UTF8String];
+		browser_window_paste_text( [(BrowserWindow *)g browser], text, strlen(text), true );
+	}
+}
+
+bool gui_empty_clipboard(void)
+{
+	if (nil == cocoa_clipboard_string) {
+		cocoa_clipboard_string = [[NSMutableString alloc] init];
+	} else {
+		[cocoa_clipboard_string setString: @""];
+	}
+	return true;
+}
+
+bool gui_add_to_clipboard(const char *text, size_t length, bool space)
+{
+	if (nil == cocoa_clipboard_string) return false;
+	
+	[cocoa_clipboard_string appendString: [[[NSString alloc] initWithBytes: text 
+																	length: length 
+																  encoding: NSUTF8StringEncoding] 
+										   autorelease]];
+	if (space) [cocoa_clipboard_string appendString: @" "];
+	
+	return true;
+}
+
+static bool cocoa_clipboard_copy_handler(const char *text, size_t length, struct box *box,
+										 void *handle, const char *whitespace_text,
+										 size_t whitespace_length)
+{
+	if (whitespace_text && !gui_add_to_clipboard( whitespace_text, 
+												 whitespace_length, false )) return false;
+	return gui_add_to_clipboard( text, length, box->space );
+}
+
+bool gui_commit_clipboard(void)
+{
+	NSPasteboard *pb = [NSPasteboard generalPasteboard];
+	[pb declareTypes: [NSArray arrayWithObject: NSStringPboardType] owner: nil];
+	bool result = [pb setString: cocoa_clipboard_string forType: NSStringPboardType];
+	if (result) gui_empty_clipboard();
+	return result;
+}
+
+bool gui_copy_to_clipboard(struct selection *s)
+{
+	if (selection_defined( s ) && selection_traverse( s, cocoa_clipboard_copy_handler, NULL ))
+		gui_commit_clipboard();
+	return true;
+}
+