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/*
* 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"
#import "desktop/gui.h"
@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
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