Implemented download window

svn path=/trunk/netsurf/; revision=11317

5 files changed, 755 insertions, 29 deletions

diff --git a/cocoa/DownloadWindowController.h b/cocoa/DownloadWindowController.h
new file mode 100644
index 000000000..0115c4597
--- /dev/null
+++ b/cocoa/DownloadWindowController.h
@@ -0,0 +1,49 @@
+/*
+ * 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>
+
+
+@interface DownloadWindowController : NSWindowController {
+	struct download_context *context;
+	unsigned long totalSize;
+	unsigned long receivedSize;
+	
+	NSURL *url;
+	NSString *mimeType;
+	NSURL *saveURL;
+	NSFileHandle *outputFile;
+	NSMutableData *savedData;
+	NSDate *startDate;
+}
+
+@property (readwrite, copy, nonatomic) NSURL *URL;
+@property (readwrite, copy, nonatomic) NSString *MIMEType;
+@property (readwrite, assign, nonatomic) unsigned long totalSize;
+@property (readwrite, copy, nonatomic) NSURL *saveURL;
+@property (readwrite, assign, nonatomic) unsigned long receivedSize;
+
+@property (readonly, nonatomic) NSString *fileName;
+@property (readonly, nonatomic) NSImage *icon;
+@property (readonly, nonatomic) NSString *statusText;
+
+- initWithContext: (struct download_context *)ctx;
+
+- (void) abort;
+
+@end
diff --git a/cocoa/DownloadWindowController.m b/cocoa/DownloadWindowController.m
new file mode 100644
index 000000000..832ffc01c
--- /dev/null
+++ b/cocoa/DownloadWindowController.m
@@ -0,0 +1,242 @@
+/*
+ * 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 "DownloadWindowController.h"
+
+#import "desktop/download.h"
+
+#define UNIMPL() NSLog( @"Function '%s' unimplemented", __func__ )
+
+@interface DownloadWindowController ()
+
+@property (readwrite, retain, nonatomic) NSFileHandle *outputFile;
+@property (readwrite, retain, nonatomic) NSMutableData *savedData;
+@property (readwrite, copy, nonatomic) NSDate *startDate;
+
+- (void)savePanelDidEnd:(NSSavePanel *)sheet returnCode:(int)returnCode contextInfo:(void *)contextInfo;
+- (void)alertDidEnd:(NSAlert *)alert returnCode:(NSInteger)returnCode contextInfo:(void *)contextInfo;
+
+- (BOOL) receivedData: (NSData *)data;
+
+- (void) showError: (NSString *)error;
+
+@end
+
+
+@implementation DownloadWindowController
+
+- initWithContext: (struct download_context *)ctx;
+{
+	if ((self = [super initWithWindowNibName: @"DownloadWindow"]) == nil) return nil;
+	
+	context = ctx;
+	totalSize = download_context_get_total_length( context );
+	[self setURL: [NSURL URLWithString: [NSString stringWithUTF8String: download_context_get_url( context )]]];
+	[self setMIMEType: [NSString stringWithUTF8String: download_context_get_mime_type( context )]];
+	[self setStartDate: [NSDate date]];
+	
+	return self;
+}
+
+- (void) dealloc;
+{
+	download_context_destroy( context );
+	
+	[self setURL: nil];
+	[self setMIMEType: nil];
+	[self setSaveURL: nil];
+	[self setOutputFile: nil];
+	[self setSavedData: nil];
+	[self setStartDate: nil];
+	
+	[super dealloc];
+}
+
+- (void) abort;
+{
+	download_context_abort( context );
+}
+
+- (void) askForSave;
+{
+	[[NSSavePanel savePanel] beginSheetForDirectory: nil 
+											   file: [[url path] lastPathComponent]
+									 modalForWindow: [self window] 
+									  modalDelegate: self 
+									 didEndSelector: @selector(savePanelDidEnd:returnCode:contextInfo:) 
+										contextInfo: NULL];
+}
+
+- (void)savePanelDidEnd:(NSSavePanel *)sheet returnCode:(int)returnCode contextInfo:(void *)contextInfo;
+{
+	if (returnCode == NSCancelButton) {
+		[self abort];
+		return;
+	}
+
+	NSURL *targetURL = [sheet URL];
+	NSString *path = [targetURL path];
+	
+	[[NSFileManager defaultManager] createFileAtPath: path contents: nil attributes: nil];
+	[self setOutputFile: [NSFileHandle fileHandleForWritingAtPath: path]];
+	[self setSaveURL: targetURL];
+	
+	NSWindow *win = [self window];
+	[win setRepresentedURL: targetURL];
+	[win setTitle: [self fileName]];
+	
+	if (nil == outputFile) {
+		[self performSelector: @selector(showError:) withObject: @"Cannot create file" afterDelay: 0];
+		return;
+	}
+
+	if (nil != savedData) {
+		[outputFile writeData: savedData];
+		[self setSavedData: nil];
+	}
+}
+
+- (BOOL) receivedData: (NSData *)data;
+{
+	if (outputFile) {
+		[outputFile writeData: data];
+	} else {
+		if (nil == savedData) [self setSavedData: [NSMutableData data]];
+		[savedData appendData: data];
+	}
+	
+	[self setReceivedSize: receivedSize + [data length]];
+	
+	return YES;
+}
+
+- (void) showError: (NSString *)error;
+{
+	NSAlert *alert = [NSAlert alertWithMessageText: @"Error" defaultButton: @"OK" 
+								   alternateButton: nil otherButton: nil 
+						 informativeTextWithFormat: @"%@", error];
+	
+	[alert beginSheetModalForWindow: [self window] modalDelegate: self 
+					 didEndSelector: @selector(alertDidEnd:returnCode:contextInfo:)
+						contextInfo: NULL];
+}
+
+- (void)alertDidEnd:(NSAlert *)alert returnCode:(NSInteger)returnCode contextInfo:(void *)contextInfo;
+{
+	[self abort];
+}
+
+#pragma mark -
+#pragma mark Properties
+
+@synthesize URL = url;
+@synthesize MIMEType = mimeType;
+@synthesize totalSize;
+@synthesize saveURL;
+@synthesize outputFile;
+@synthesize savedData;
+@synthesize receivedSize;
+@synthesize startDate;
+
++ (NSSet *) keyPathsForValuesAffectingStatusText;
+{
+	return [NSSet setWithObjects: @"totalSize", @"receivedSize", nil];
+}
+
+static NSString *cocoa_file_size_string( float size )
+{
+    if (size < 1023) return [NSString stringWithFormat:@"%1.0f bytes",size];
+
+    size /= 1024;
+    if (size < 1023) return [NSString stringWithFormat:@"%1.1f KiB", size];
+    
+	size /= 1024;
+    if (size < 1023) return [NSString stringWithFormat:@"%1.1f MiB", size];
+
+    size /= 1024;
+    return [NSString stringWithFormat:@"%1.1f GiB", size];
+}
+
+- (NSString *) statusText;
+{
+	NSString *speedString = @"";
+	
+	float elapsedTime = [[NSDate date] timeIntervalSinceDate: startDate];
+	if (elapsedTime >= 0.1) {
+		float speed = (float)receivedSize / elapsedTime;
+		speedString = [NSString stringWithFormat: @" (%@/s)", cocoa_file_size_string( speed )];
+	}
+	
+	return [NSString stringWithFormat: @"%@ of %@%@", cocoa_file_size_string( receivedSize ), 
+			cocoa_file_size_string( totalSize ), speedString];
+}
+
++ (NSSet *) keyPathsForValuesAffectingFileName;
+{
+	return [NSSet setWithObject: @"saveURL"];
+}
+
+- (NSString *) fileName;
+{
+	return [[saveURL path] lastPathComponent];
+}
+
++ (NSSet *) keyPathsForValuesAffectingIcon;
+{
+	return [NSSet setWithObject: @"saveURL"];
+}
+
+- (NSImage *) icon;
+{
+	return saveURL != nil ? [[NSWorkspace sharedWorkspace] iconForFile: [saveURL path]] : nil;
+}
+
+
+#pragma mark -
+#pragma mark NetSurf interface functions
+
+struct gui_download_window *gui_download_window_create(download_context *ctx,
+													   struct gui_window *parent)
+{
+	DownloadWindowController * const window = [[DownloadWindowController alloc] initWithContext: ctx];
+	[window askForSave];
+	
+	return (struct gui_download_window *)window;
+}
+
+nserror gui_download_window_data(struct gui_download_window *dw, 
+								 const char *data, unsigned int size)
+{
+	DownloadWindowController * const window = (DownloadWindowController *)dw;
+	return [window receivedData: [NSData dataWithBytes: data length: size]] ? NSERROR_OK : NSERROR_SAVE_FAILED;
+}
+
+void gui_download_window_error(struct gui_download_window *dw,
+							   const char *error_msg)
+{
+	DownloadWindowController * const window = (DownloadWindowController *)dw;
+	[window showError: [NSString stringWithUTF8String: error_msg]];
+}
+
+void gui_download_window_done(struct gui_download_window *dw)
+{
+	DownloadWindowController * const window = (DownloadWindowController *)dw;
+	[window release];
+}
+
+@end
diff --git a/cocoa/NetSurf.xcodeproj/project.pbxproj b/cocoa/NetSurf.xcodeproj/project.pbxproj
index 97ca2d496..aefe384f3 100644
--- a/cocoa/NetSurf.xcodeproj/project.pbxproj
+++ b/cocoa/NetSurf.xcodeproj/project.pbxproj
@@ -113,6 +113,8 @@
 		26AFE63F12DDEB0A005AD082 /* NetSurf.icns in Resources */ = {isa = PBXBuildFile; fileRef = 26AFE63E12DDEB0A005AD082 /* NetSurf.icns */; };
 		26AFE8E412DF4200005AD082 /* ScrollableView.m in Sources */ = {isa = PBXBuildFile; fileRef = 26AFE8E312DF4200005AD082 /* ScrollableView.m */; };
 		26AFE97C12DF514C005AD082 /* NetSurfAppDelegate.m in Sources */ = {isa = PBXBuildFile; fileRef = 26AFE97B12DF514C005AD082 /* NetSurfAppDelegate.m */; };
+		26AFEAEB12E04253005AD082 /* DownloadWindowController.m in Sources */ = {isa = PBXBuildFile; fileRef = 26AFEAEA12E04253005AD082 /* DownloadWindowController.m */; };
+		26AFEAF112E042F9005AD082 /* DownloadWindow.xib in Resources */ = {isa = PBXBuildFile; fileRef = 26AFEAF012E042F9005AD082 /* DownloadWindow.xib */; };
 		8D11072F0486CEB800E47090 /* Cocoa.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 1058C7A1FEA54F0111CA2CBB /* Cocoa.framework */; };
 /* End PBXBuildFile section */
 
@@ -331,6 +333,9 @@
 		26AFE8E312DF4200005AD082 /* ScrollableView.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = ScrollableView.m; sourceTree = "<group>"; };
 		26AFE97A12DF514C005AD082 /* NetSurfAppDelegate.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = NetSurfAppDelegate.h; sourceTree = "<group>"; };
 		26AFE97B12DF514C005AD082 /* NetSurfAppDelegate.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = NetSurfAppDelegate.m; sourceTree = "<group>"; };
+		26AFEAE912E04253005AD082 /* DownloadWindowController.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = DownloadWindowController.h; sourceTree = "<group>"; };
+		26AFEAEA12E04253005AD082 /* DownloadWindowController.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = DownloadWindowController.m; sourceTree = "<group>"; };
+		26AFEAF012E042F9005AD082 /* DownloadWindow.xib */ = {isa = PBXFileReference; lastKnownFileType = file.xib; path = DownloadWindow.xib; sourceTree = "<group>"; };
 		8D1107320486CEB800E47090 /* NetSurf.app */ = {isa = PBXFileReference; explicitFileType = wrapper.application; includeInIndex = 0; path = NetSurf.app; sourceTree = BUILT_PRODUCTS_DIR; };
 /* End PBXFileReference section */
 
@@ -610,6 +615,8 @@
 				26AFE8E312DF4200005AD082 /* ScrollableView.m */,
 				26AFE97A12DF514C005AD082 /* NetSurfAppDelegate.h */,
 				26AFE97B12DF514C005AD082 /* NetSurfAppDelegate.m */,
+				26AFEAE912E04253005AD082 /* DownloadWindowController.h */,
+				26AFEAEA12E04253005AD082 /* DownloadWindowController.m */,
 			);
 			name = cocoa;
 			sourceTree = "<group>";
@@ -625,6 +632,7 @@
 				265F30A712D6637E0048B600 /* NetSurf-Info.plist */,
 				26121DA812D700B800E10F91 /* MainMenu.xib */,
 				26121EAB12D70E0A00E10F91 /* Browser.xib */,
+				26AFEAF012E042F9005AD082 /* DownloadWindow.xib */,
 			);
 			path = res;
 			sourceTree = "<group>";
@@ -748,6 +756,7 @@
 				2612266D12D7AD6800E10F91 /* adblock.css in Resources */,
 				2612269112D7AE4100E10F91 /* Messages in Resources */,
 				26AFE63F12DDEB0A005AD082 /* NetSurf.icns in Resources */,
+				26AFEAF112E042F9005AD082 /* DownloadWindow.xib in Resources */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 		};
@@ -857,6 +866,7 @@
 				2622F1D712DCD84600CD5A62 /* TreeView.m in Sources */,
 				26AFE8E412DF4200005AD082 /* ScrollableView.m in Sources */,
 				26AFE97C12DF514C005AD082 /* NetSurfAppDelegate.m in Sources */,
+				26AFEAEB12E04253005AD082 /* DownloadWindowController.m in Sources */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 		};
diff --git a/cocoa/gui.m b/cocoa/gui.m
index 363961dc4..09c80c7b2 100644
--- a/cocoa/gui.m
+++ b/cocoa/gui.m
@@ -252,33 +252,6 @@ void gui_window_set_scale(struct gui_window *g, float scale)
 	gui_window_redraw_window( g );
 }
 
-
-struct gui_download_window *gui_download_window_create(download_context *ctx,
-													   struct gui_window *parent)
-{
-	UNIMPL();
-	return NULL;
-}
-
-nserror gui_download_window_data(struct gui_download_window *dw, 
-								 const char *data, unsigned int size)
-{
-	UNIMPL();
-	return 0;
-}
-
-void gui_download_window_error(struct gui_download_window *dw,
-							   const char *error_msg)
-{
-	UNIMPL();
-}
-
-void gui_download_window_done(struct gui_download_window *dw)
-{
-	UNIMPL();
-}
-
-
 void gui_drag_save_object(gui_save_type type, hlcache_handle *c,
 						  struct gui_window *g)
 {
@@ -338,8 +311,6 @@ void gui_launch_url(const char *url)
 	[[NSWorkspace sharedWorkspace] openURL: [NSURL URLWithString: [NSString stringWithUTF8String: url]]];
 }
 
-
-
 struct ssl_cert_info;
 
 void gui_cert_verify(const char *url, const struct ssl_cert_info *certs, 
diff --git a/cocoa/res/DownloadWindow.xib b/cocoa/res/DownloadWindow.xib
new file mode 100644
index 000000000..9d960d019
--- /dev/null
+++ b/cocoa/res/DownloadWindow.xib
@@ -0,0 +1,454 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<archive type="com.apple.InterfaceBuilder3.Cocoa.XIB" version="7.10">
+	<data>
+		<int key="IBDocument.SystemTarget">1050</int>
+		<string key="IBDocument.SystemVersion">10J567</string>
+		<string key="IBDocument.InterfaceBuilderVersion">804</string>
+		<string key="IBDocument.AppKitVersion">1038.35</string>
+		<string key="IBDocument.HIToolboxVersion">462.00</string>
+		<object class="NSMutableDictionary" key="IBDocument.PluginVersions">
+			<string key="NS.key.0">com.apple.InterfaceBuilder.CocoaPlugin</string>
+			<string key="NS.object.0">804</string>
+		</object>
+		<object class="NSMutableArray" key="IBDocument.EditedObjectIDs">
+			<bool key="EncodedWithXMLCoder">YES</bool>
+			<integer value="2"/>
+		</object>
+		<object class="NSArray" key="IBDocument.PluginDependencies">
+			<bool key="EncodedWithXMLCoder">YES</bool>
+			<string>com.apple.InterfaceBuilder.CocoaPlugin</string>
+		</object>
+		<object class="NSMutableDictionary" key="IBDocument.Metadata">
+			<bool key="EncodedWithXMLCoder">YES</bool>
+			<object class="NSArray" key="dict.sortedKeys" id="0">
+				<bool key="EncodedWithXMLCoder">YES</bool>
+			</object>
+			<object class="NSMutableArray" key="dict.values">
+				<bool key="EncodedWithXMLCoder">YES</bool>
+			</object>
+		</object>
+		<object class="NSMutableArray" key="IBDocument.RootObjects" id="1000">
+			<bool key="EncodedWithXMLCoder">YES</bool>
+			<object class="NSCustomObject" id="1001">
+				<string key="NSClassName">DownloadWindowController</string>
+			</object>
+			<object class="NSCustomObject" id="1003">
+				<string key="NSClassName">FirstResponder</string>
+			</object>
+			<object class="NSCustomObject" id="1004">
+				<string key="NSClassName">NSApplication</string>
+			</object>
+			<object class="NSWindowTemplate" id="1005">
+				<int key="NSWindowStyleMask">15</int>
+				<int key="NSWindowBacking">2</int>
+				<string key="NSWindowRect">{{196, 429}, {376, 90}}</string>
+				<int key="NSWTFlags">544735232</int>
+				<string key="NSWindowTitle">Download</string>
+				<string key="NSWindowClass">NSWindow</string>
+				<nil key="NSViewClass"/>
+				<string key="NSWindowContentMaxSize">{1000, 90}</string>
+				<string key="NSWindowContentMinSize">{330, 90}</string>
+				<object class="NSView" key="NSWindowView" id="1006">
+					<reference key="NSNextResponder"/>
+					<int key="NSvFlags">256</int>
+					<object class="NSMutableArray" key="NSSubviews">
+						<bool key="EncodedWithXMLCoder">YES</bool>
+						<object class="NSProgressIndicator" id="663127685">
+							<reference key="NSNextResponder" ref="1006"/>
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+							<object class="NSPSMatrix" key="NSDrawMatrix"/>
+							<string key="NSFrame">{{79, 33}, {279, 20}}</string>
+							<reference key="NSSuperview" ref="1006"/>
+							<int key="NSpiFlags">16392</int>
+							<double key="NSMaxValue">100</double>
+						</object>
+						<object class="NSImageView" id="454520484">
+							<reference key="NSNextResponder" ref="1006"/>
+							<int key="NSvFlags">268</int>
+							<object class="NSMutableSet" key="NSDragTypes">
+								<bool key="EncodedWithXMLCoder">YES</bool>
+								<object class="NSArray" key="set.sortedObjects">
+									<bool key="EncodedWithXMLCoder">YES</bool>
+									<string>Apple PDF pasteboard type</string>
+									<string>Apple PICT pasteboard type</string>
+									<string>Apple PNG pasteboard type</string>
+									<string>NSFilenamesPboardType</string>
+									<string>NeXT Encapsulated PostScript v1.2 pasteboard type</string>
+									<string>NeXT TIFF v4.0 pasteboard type</string>
+								</object>
+							</object>
+							<string key="NSFrame">{{17, 17}, {56, 56}}</string>
+							<reference key="NSSuperview" ref="1006"/>
+							<bool key="NSEnabled">YES</bool>
+							<object class="NSImageCell" key="NSCell" id="596224379">
+								<int key="NSCellFlags">130560</int>
+								<int key="NSCellFlags2">33554432</int>
+								<int key="NSAlign">0</int>
+								<int key="NSScale">3</int>
+								<int key="NSStyle">0</int>
+								<bool key="NSAnimates">NO</bool>
+							</object>
+							<bool key="NSEditable">YES</bool>
+						</object>
+						<object class="NSTextField" id="355449439">
+							<reference key="NSNextResponder" ref="1006"/>
+							<int key="NSvFlags">266</int>
+							<string key="NSFrame">{{78, 56}, {261, 17}}</string>
+							<reference key="NSSuperview" ref="1006"/>
+							<bool key="NSEnabled">YES</bool>
+							<object class="NSTextFieldCell" key="NSCell" id="578533771">
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+								<int key="NSCellFlags2">272630784</int>
+								<string key="NSContents">Label</string>
+								<object class="NSFont" key="NSSupport">
+									<string key="NSName">LucidaGrande</string>
+									<double key="NSSize">13</double>
+									<int key="NSfFlags">1044</int>
+								</object>
+								<reference key="NSControlView" ref="355449439"/>
+								<object class="NSColor" key="NSBackgroundColor" id="388192080">
+									<int key="NSColorSpace">6</int>
+									<string key="NSCatalogName">System</string>
+									<string key="NSColorName">controlColor</string>
+									<object class="NSColor" key="NSColor">
+										<int key="NSColorSpace">3</int>
+										<bytes key="NSWhite">MC42NjY2NjY2NjY3AA</bytes>
+									</object>
+								</object>
+								<object class="NSColor" key="NSTextColor" id="1042936865">
+									<int key="NSColorSpace">6</int>
+									<string key="NSCatalogName">System</string>
+									<string key="NSColorName">controlTextColor</string>
+									<object class="NSColor" key="NSColor">
+										<int key="NSColorSpace">3</int>
+										<bytes key="NSWhite">MAA</bytes>
+									</object>
+								</object>
+							</object>
+						</object>
+						<object class="NSTextField" id="1027859209">
+							<reference key="NSNextResponder" ref="1006"/>
+							<int key="NSvFlags">266</int>
+							<string key="NSFrame">{{78, 17}, {281, 14}}</string>
+							<reference key="NSSuperview" ref="1006"/>
+							<bool key="NSEnabled">YES</bool>
+							<object class="NSTextFieldCell" key="NSCell" id="882473472">
+								<int key="NSCellFlags">68288064</int>
+								<int key="NSCellFlags2">272761856</int>
+								<string key="NSContents">Label</string>
+								<object class="NSFont" key="NSSupport">
+									<string key="NSName">LucidaGrande</string>
+									<double key="NSSize">11</double>
+									<int key="NSfFlags">3100</int>
+								</object>
+								<reference key="NSControlView" ref="1027859209"/>
+								<reference key="NSBackgroundColor" ref="388192080"/>
+								<reference key="NSTextColor" ref="1042936865"/>
+							</object>
+						</object>
+					</object>
+					<string key="NSFrameSize">{376, 90}</string>
+					<reference key="NSSuperview"/>
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