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ODBEditor.m
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ODBEditor.m
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//
// ODBEditor.m
// B-Quartic
// http://gusmueller.com/odb/
/**
Nov 30- Updates from Eric Blair:
removed entries from the _filesBeingEdited dictionary when the odb connection is closed.
added support for handling Save As messages and differentiate between editing a file and editing a string.
Nov 30- Updates from Gus Mueller:
Added stringByResolvingSymlinksInPath around the file paths passed around, because it seems if you write to
/tmp/, sometimes you'll get back /private/tmp as a param
*/
#import "NSAppleEventDescriptor-Extensions.h"
#import "ODBEditor.h"
#import "ODBEditorSuite.h"
#import <Carbon/Carbon.h>
NSString * const ODBEditorCustomPathKey = @"ODBEditorCustomPath";
NSString * const ODBEditorNonRetainedClient = @"ODBEditorNonRetainedClient";
NSString * const ODBEditorClientContext = @"ODBEditorClientContext";
NSString * const ODBEditorFileName = @"ODBEditorFileName";
NSString * const ODBEditorIsEditingString = @"ODBEditorIsEditingString";
@interface ODBEditor(Private)
- (BOOL)_launchExternalEditor;
- (NSString *)_tempFileForEditingString:(NSString *)string;
- (BOOL)_editFile:(NSString *)path isEditingString:(BOOL)editingStringFlag options:(NSDictionary *)options forClient:(id)client context:(NSDictionary *)context;
- (void)handleModifiedFileEvent:(NSAppleEventDescriptor *)event withReplyEvent:(NSAppleEventDescriptor *)replyEvent;
- (void)handleClosedFileEvent:(NSAppleEventDescriptor *)event withReplyEvent:(NSAppleEventDescriptor *)replyEvent;
@end
@implementation ODBEditor
static ODBEditor *_sharedODBEditor;
+ (id)sharedODBEditor {
if (_sharedODBEditor == nil) {
_sharedODBEditor = [[ODBEditor alloc] init];
}
return _sharedODBEditor;
}
- (id)init {
self = [super init];
if (self != nil) {
UInt32 packageType = 0;
UInt32 packageCreator = 0;
if (_sharedODBEditor != nil) {
[self autorelease];
[NSException raise: NSInternalInconsistencyException format: @"ODBEditor is a singleton - use [ODBEditor sharedODBEditor]"];
return nil;
}
// our initialization
CFBundleGetPackageInfo(CFBundleGetMainBundle(), &packageType, &packageCreator);
_signature = packageCreator;
[self setEditorBundleIdentifier: @"com.hogbaysoftware.WriteRoom"];
_filesBeingEdited = [[NSMutableDictionary alloc] init];
// setup our event handlers
NSAppleEventManager *appleEventManager = [NSAppleEventManager sharedAppleEventManager];
[appleEventManager setEventHandler: self andSelector: @selector(handleModifiedFileEvent:withReplyEvent:) forEventClass: kODBEditorSuite andEventID: kAEModifiedFile];
[appleEventManager setEventHandler: self andSelector: @selector(handleClosedFileEvent:withReplyEvent:) forEventClass: kODBEditorSuite andEventID: kAEClosedFile];
}
return self;
}
- (void)dealloc {
NSAppleEventManager *appleEventManager = [NSAppleEventManager sharedAppleEventManager];
[appleEventManager removeEventHandlerForEventClass: kODBEditorSuite andEventID: kAEModifiedFile];
[appleEventManager removeEventHandlerForEventClass: kODBEditorSuite andEventID: kAEClosedFile];
[_editorBundleIdentifier release];
[_filesBeingEdited release];
[super dealloc];
}
- (void)setEditorBundleIdentifier:(NSString *)bundleIdentifier {
[_editorBundleIdentifier autorelease];
_editorBundleIdentifier = [bundleIdentifier copy];
}
- (NSString *)editorBundleIdentifier {
return _editorBundleIdentifier;
}
- (void)abortEditingFile:(NSString *)path {
//#warning REVIEW if we created a temporary file for this session should we try to delete it and/or close it in the editor?
if (nil == [_filesBeingEdited objectForKey: path])
NSLog(@"ODBEditor: No active editing session for \"%@\"", path);
[_filesBeingEdited removeObjectForKey: path];
}
- (void)abortAllEditingSessionsForClient:(id)client {
//#warning REVIEW if we created a temporary file for this session should we try to delete it and/or close it in the editor?
BOOL found = NO;
NSEnumerator *enumerator = [_filesBeingEdited objectEnumerator];
NSMutableArray *keysToRemove = [NSMutableArray array];
NSDictionary *dictionary = nil;
while (nil != (dictionary = [enumerator nextObject])) {
id iterClient = [[dictionary objectForKey: ODBEditorNonRetainedClient] nonretainedObjectValue];
if (iterClient == client) {
found = YES;
[keysToRemove addObject: [dictionary objectForKey: ODBEditorFileName]];
}
}
[_filesBeingEdited removeObjectsForKeys: keysToRemove];
if (! found) {
NSLog(@"ODBEditor: No active editing session for \"%@\"", client);
}
}
- (BOOL)editFile:(NSString *)path options:(NSDictionary *)options forClient:(id)client context:(NSDictionary *)context {
return [self _editFile: path isEditingString: NO options: options forClient: client context: context];
}
- (BOOL)editString:(NSString *)string options:(NSDictionary *)options forClient:(id)client context:(NSDictionary *)context {
BOOL success = NO;
NSString *path = [self _tempFileForEditingString: string];
if (path != nil) {
success = [self _editFile: path isEditingString: YES options: options forClient: client context: context];
}
return success;
}
@end
@implementation ODBEditor(Private)
- (BOOL)_launchExternalEditor {
BOOL success = NO;
BOOL running = NO;
NSWorkspace *workspace = [NSWorkspace sharedWorkspace];
NSArray *runningApplications = [workspace launchedApplications];
NSEnumerator *enumerator = [runningApplications objectEnumerator];
NSDictionary *applicationInfo;
while (nil != (applicationInfo = [enumerator nextObject])) {
NSString *bundleIdentifier = [applicationInfo objectForKey: @"NSApplicationBundleIdentifier"];
if ([bundleIdentifier isEqualToString: _editorBundleIdentifier]) {
running = YES;
// bring the app forward
success = [workspace launchApplication: [applicationInfo objectForKey: @"NSApplicationPath"]];
break;
}
}
if (running == NO) {
success = [workspace launchAppWithBundleIdentifier: _editorBundleIdentifier options: 0L additionalEventParamDescriptor: nil launchIdentifier: nil];
}
return success;
}
- (NSString *)_tempFileForEditingString:(NSString *)string {
static unsigned sTempFileSequence;
NSString *fileName = nil;
sTempFileSequence++;
fileName = [NSString stringWithFormat: @"ODBEditor-%@-%06d.txt", [[NSBundle mainBundle] bundleIdentifier], sTempFileSequence];
fileName = [NSTemporaryDirectory() stringByAppendingPathComponent: fileName];
if (NO == [string writeToFile:fileName atomically:NO encoding:NSUTF8StringEncoding error:nil])
fileName = nil;
return fileName;
}
- (BOOL)_editFile:(NSString *)fileName isEditingString:(BOOL)editingStringFlag options:(NSDictionary *)options forClient:(id)client context:(NSDictionary *)context {
// 10.2 fix- akm Nov 30 2004
fileName = [fileName stringByResolvingSymlinksInPath];
BOOL success = NO;
OSStatus status = noErr;
NSData *targetBundleID = [_editorBundleIdentifier dataUsingEncoding: NSUTF8StringEncoding];
NSAppleEventDescriptor *targetDescriptor = [NSAppleEventDescriptor descriptorWithDescriptorType: typeApplicationBundleID data: targetBundleID];
NSAppleEventDescriptor *appleEvent = [NSAppleEventDescriptor appleEventWithEventClass: kCoreEventClass
eventID: kAEOpenDocuments
targetDescriptor: targetDescriptor
returnID: kAutoGenerateReturnID
transactionID: kAnyTransactionID];
NSAppleEventDescriptor *replyDescriptor = nil;
NSAppleEventDescriptor *errorDescriptor = nil;
AEDesc reply = {typeNull, NULL};
NSString *customPath = [options objectForKey: ODBEditorCustomPathKey];
[self _launchExternalEditor];
[appleEvent setParamDescriptor: [NSAppleEventDescriptor descriptorWithFilePath: fileName] forKeyword: keyDirectObject];
[appleEvent setParamDescriptor: [NSAppleEventDescriptor descriptorWithTypeCode: _signature] forKeyword: keyFileSender];
if (customPath != nil)
[appleEvent setParamDescriptor: [NSAppleEventDescriptor descriptorWithString: customPath] forKeyword: keyFileCustomPath];
//status = AESend([appleEvent aeDesc], &reply, kAEWaitReply, kAENormalPriority, kAEDefaultTimeout, NULL, NULL);
AESendMessage([appleEvent aeDesc], &reply, kAEWaitReply, kAEDefaultTimeout);
if (status == noErr) {
replyDescriptor = [[[NSAppleEventDescriptor alloc] initWithAEDescNoCopy: &reply] autorelease];
errorDescriptor = [replyDescriptor paramDescriptorForKeyword: keyErrorNumber];
if (errorDescriptor != nil) {
status = [errorDescriptor int32Value];
}
if (status == noErr) {
// save off some information that we'll need when we get called back
NSMutableDictionary *dictionary = [NSMutableDictionary dictionary];
[dictionary setObject: [NSValue valueWithNonretainedObject: client] forKey: ODBEditorNonRetainedClient];
if (context != NULL)
[dictionary setObject: context forKey: ODBEditorClientContext];
[dictionary setObject: fileName forKey: ODBEditorFileName];
[dictionary setObject: [NSNumber numberWithBool: editingStringFlag] forKey: ODBEditorIsEditingString];
[_filesBeingEdited setObject: dictionary forKey: fileName];
}
}
success = (status == noErr);
return success;
}
- (void)handleModifiedFileEvent:(NSAppleEventDescriptor *)event withReplyEvent:(NSAppleEventDescriptor *)replyEvent {
NSAppleEventDescriptor *fpDescriptor = [[event paramDescriptorForKeyword: keyDirectObject] coerceToDescriptorType: typeFileURL];
NSString *urlString = [[[NSString alloc] initWithData: [fpDescriptor data] encoding: NSUTF8StringEncoding] autorelease];
NSString *fileName = [[[NSURL URLWithString: urlString] path] stringByResolvingSymlinksInPath];
NSAppleEventDescriptor *nfpDescription = [[event paramDescriptorForKeyword: keyNewLocation] coerceToDescriptorType: typeFileURL];
NSString *newUrlString = [[[NSString alloc] initWithData: [nfpDescription data] encoding: NSUTF8StringEncoding] autorelease];
NSString *newFileName = [[NSURL URLWithString: newUrlString] path];
NSDictionary *dictionary = nil;
dictionary = [_filesBeingEdited objectForKey: fileName];
if (dictionary != nil)
{
id client = [[dictionary objectForKey: ODBEditorNonRetainedClient] nonretainedObjectValue];
id isString = [dictionary objectForKey: ODBEditorIsEditingString];
NSDictionary *context = [dictionary objectForKey: ODBEditorClientContext];
// XXXX JESSE NSDictionary *context = [[dictionary objectForKey: ODBEditorClientContext] nonretainedObjectValue];
if(isString)
{
NSString *stringContents = [NSString stringWithContentsOfFile:fileName encoding:NSUTF8StringEncoding error:nil];
[client odbEditor: self didModifyFileForString: stringContents context: context];
}
else
[client odbEditor:self didModifyFile:fileName newFileLocation:newFileName context:context];
// if we've received a Save As message, remove the file from the list of edited files
// This may be break compatibility with BBEdit versioner < 6.0, since these versions
// continue to send notifications after after doing a Save As...
if(newFileName)
{
[_filesBeingEdited removeObjectForKey: fileName];
}
}
else
{
NSLog(@"Got ODB editor event for unknown file.");
}
}
- (void)handleClosedFileEvent:(NSAppleEventDescriptor *)event withReplyEvent:(NSAppleEventDescriptor *)replyEvent
{
NSAppleEventDescriptor *descriptor = [[event paramDescriptorForKeyword: keyDirectObject] coerceToDescriptorType: typeFileURL];
NSString *urlString = [[[NSString alloc] initWithData: [descriptor data] encoding: NSUTF8StringEncoding] autorelease];
NSString *fileName = [[[NSURL URLWithString: urlString] path] stringByResolvingSymlinksInPath];
NSDictionary *dictionary = nil;
dictionary = [_filesBeingEdited objectForKey: fileName];
if (dictionary != nil)
{
id client = [[dictionary objectForKey: ODBEditorNonRetainedClient] nonretainedObjectValue];
id isString = [dictionary objectForKey: ODBEditorIsEditingString];
NSDictionary *context = [dictionary objectForKey: ODBEditorClientContext];
if(isString)
{
NSString *stringContents = [NSString stringWithContentsOfURL:[NSURL fileURLWithPath:fileName] encoding:NSUTF8StringEncoding error:nil];
//NSString *stringContents = [NSString stringWithContentsOfFile: fileName];
[client odbEditor: self didCloseFileForString: stringContents context: context];
}
else
{
[client odbEditor:self didClosefile:fileName context:context];
}
}
else
{
NSLog(@"Got ODB editor event for unknown file.");
}
[_filesBeingEdited removeObjectForKey: fileName];
}
@end