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mirror of https://github.com/qvacua/vimr.git synced 2024-12-26 07:13:24 +03:00
vimr/SwiftNeoVim/NeoVimAgent.m
2016-08-15 20:30:44 +02:00

390 lines
11 KiB
Objective-C

/**
* Tae Won Ha - http://taewon.de - @hataewon
* See LICENSE
*/
#import "NeoVimAgent.h"
#import "NeoVimMsgIds.h"
#import "NeoVimUiBridgeProtocol.h"
#import "Logging.h"
#import "NeoVimBuffer.h"
static const double qTimeout = 10;
#define data_to_array(type) \
static type *data_to_ ## type ## _array(NSData *data, NSUInteger count) { \
NSUInteger length = count * sizeof( type ); \
if (data.length != length) { \
return NULL; \
} \
return ( type *) data.bytes; \
}
data_to_array(int)
data_to_array(bool)
data_to_array(CellAttributes)
@interface NeoVimAgent ()
- (void)handleMessageWithId:(SInt32)msgid data:(NSData *)data;
@end
static CFDataRef local_server_callback(CFMessagePortRef local, SInt32 msgid, CFDataRef data, void *info) {
@autoreleasepool {
NeoVimAgent *agent = (__bridge NeoVimAgent *) info;
[agent handleMessageWithId:msgid data:(__bridge NSData *) (data)];
}
return NULL;
}
@implementation NeoVimAgent {
NSString *_uuid;
CFMessagePortRef _remoteServerPort;
CFMessagePortRef _localServerPort;
NSThread *_localServerThread;
CFRunLoopRef _localServerRunLoop;
NSTask *_neoVimServerTask;
}
- (instancetype)initWithUuid:(NSString *)uuid {
self = [super init];
if (self == nil) {
return nil;
}
_uuid = uuid;
return self;
}
// We cannot use -dealloc for this since -dealloc is not called until the run loop in the thread stops.
- (void)quit {
[self sendMessageWithId:NeoVimAgentMsgIdQuit data:nil expectsReply:NO];
if (CFMessagePortIsValid(_remoteServerPort)) {
CFMessagePortInvalidate(_remoteServerPort);
}
CFRelease(_remoteServerPort);
if (CFMessagePortIsValid(_localServerPort)) {
CFMessagePortInvalidate(_localServerPort);
}
CFRelease(_localServerPort);
CFRunLoopStop(_localServerRunLoop);
[_localServerThread cancel];
}
- (void)establishLocalServer {
_localServerThread = [[NSThread alloc] initWithTarget:self selector:@selector(runLocalServer) object:nil];
[_localServerThread start];
_neoVimServerTask = [[NSTask alloc] init];
_neoVimServerTask.currentDirectoryPath = NSHomeDirectory();
_neoVimServerTask.launchPath = [self neoVimServerExecutablePath];
_neoVimServerTask.arguments = @[ [self localServerName], [self remoteServerName] ];
[_neoVimServerTask launch];
}
- (void)vimCommand:(NSString *)string {
NSData *data = [string dataUsingEncoding:NSUTF8StringEncoding];
[self sendMessageWithId:NeoVimAgentMsgIdCommand data:data expectsReply:NO];
}
- (void)vimInput:(NSString *)string {
NSData *data = [string dataUsingEncoding:NSUTF8StringEncoding];
[self sendMessageWithId:NeoVimAgentMsgIdInput data:data expectsReply:NO];
}
- (void)vimInputMarkedText:(NSString *_Nonnull)markedText {
NSData *data = [markedText dataUsingEncoding:NSUTF8StringEncoding];
[self sendMessageWithId:NeoVimAgentMsgIdInputMarked data:data expectsReply:NO];
}
- (void)deleteCharacters:(NSInteger)count {
NSData *data = [[NSData alloc] initWithBytes:&count length:sizeof(NSInteger)];
[self sendMessageWithId:NeoVimAgentMsgIdDelete data:data expectsReply:NO];
}
- (void)resizeToWidth:(int)width height:(int)height {
int values[] = { width, height };
NSData *data = [[NSData alloc] initWithBytes:values length:(2 * sizeof(int))];
[self sendMessageWithId:NeoVimAgentMsgIdResize data:data expectsReply:NO];
}
- (bool)hasDirtyDocs {
NSData *response = [self sendMessageWithId:NeoVimAgentMsgIdDirtyDocs data:nil expectsReply:YES];
if (response == nil) {
log4Warn("The response for the msg %lu was nil.", NeoVimAgentMsgIdDirtyDocs);
return YES;
}
bool *values = data_to_bool_array(response, 1);
return values[0];
}
- (NSArray <NSString *>*)escapedFileNames:(NSArray <NSString *>*)fileNames {
NSData *data = [NSKeyedArchiver archivedDataWithRootObject:fileNames];
NSData *response = [self sendMessageWithId:NeoVimAgentMsgIdEscapeFileNames data:data expectsReply:YES];
if (response == nil) {
log4Warn("The response for the msg %lu was nil.", NeoVimAgentMsgIdEscapeFileNames);
return @[];
}
return [NSKeyedUnarchiver unarchiveObjectWithData:response];
}
- (NSArray <NeoVimBuffer *> *)buffers {
NSData *response = [self sendMessageWithId:NeoVimAgentMsgIdGetBuffers data:nil expectsReply:YES];
if (response == nil) {
log4Warn("The response for the msg %lu was nil.", NeoVimAgentMsgIdGetBuffers);
return @[];
}
return [NSKeyedUnarchiver unarchiveObjectWithData:response];
}
- (void)runLocalServer {
@autoreleasepool {
CFMessagePortContext localContext = {
.version = 0,
.info = (__bridge void *) self,
.retain = NULL,
.release = NULL,
.copyDescription = NULL
};
unsigned char shouldFreeLocalServer = false;
_localServerPort = CFMessagePortCreateLocal(
kCFAllocatorDefault,
(__bridge CFStringRef) [self localServerName],
local_server_callback,
&localContext,
&shouldFreeLocalServer
);
// FIXME: handle shouldFreeLocalServer = true
}
_localServerRunLoop = CFRunLoopGetCurrent();
CFRunLoopSourceRef runLoopSrc = CFMessagePortCreateRunLoopSource(kCFAllocatorDefault, _localServerPort, 0);
CFRunLoopAddSource(_localServerRunLoop, runLoopSrc, kCFRunLoopCommonModes);
CFRelease(runLoopSrc);
CFRunLoopRun();
}
- (void)establishNeoVimConnection {
_remoteServerPort = CFMessagePortCreateRemote(
kCFAllocatorDefault,
(__bridge CFStringRef) [self remoteServerName]
);
[self sendMessageWithId:NeoVimAgentMsgIdAgentReady data:nil expectsReply:NO];
}
- (NSData *)sendMessageWithId:(NeoVimAgentMsgId)msgid data:(NSData *)data expectsReply:(bool)expectsReply {
if (_remoteServerPort == NULL) {
log4Warn("Remote server is null: The msg %lu with data %@ could not be sent.", (unsigned long) msgid, data);
return nil;
}
CFDataRef responseData = NULL;
CFStringRef replyMode = expectsReply ? kCFRunLoopDefaultMode : NULL;
SInt32 responseCode = CFMessagePortSendRequest(
_remoteServerPort, msgid, (__bridge CFDataRef) data, qTimeout, qTimeout, replyMode, &responseData
);
if (responseCode != kCFMessagePortSuccess) {
log4Warn("Got response %d for the msg %lu with data %@.", responseCode, (unsigned long) msgid, data);
return nil;
}
if (responseData == NULL) {
return nil;
}
return [NSData dataWithData:(__bridge NSData *) responseData];
}
- (NSString *)neoVimServerExecutablePath {
return [[[NSBundle bundleForClass:[self class]] builtInPlugInsPath] stringByAppendingPathComponent:@"NeoVimServer"];
}
- (NSString *)localServerName {
return [NSString stringWithFormat:@"com.qvacua.vimr.%@", _uuid];
}
- (NSString *)remoteServerName {
return [NSString stringWithFormat:@"com.qvacua.vimr.neovim-server.%@", _uuid];
}
- (void)handleMessageWithId:(SInt32)msgid data:(NSData *)data {
switch (msgid) {
case NeoVimServerMsgIdServerReady:
[self establishNeoVimConnection];
return;
case NeoVimServerMsgIdNeoVimReady: {
if (data.length > 0) {
log4Warn("There was an error during the initialization of NeoVim. Use :messages to view the error messages.");
}
[_bridge neoVimUiIsReady];
return;
}
case NeoVimServerMsgIdResize: {
int *values = data_to_int_array(data, 2);
if (values == nil) {
return;
}
[_bridge resizeToWidth:values[0] height:values[1]];
return;
}
case NeoVimServerMsgIdClear:
[_bridge clear];
return;
case NeoVimServerMsgIdEolClear:
[_bridge eolClear];
return;
case NeoVimServerMsgIdSetPosition: {
int *values = data_to_int_array(data, 4);
[_bridge gotoPosition:(Position) { .row = values[0], .column = values[1] }
screenCursor:(Position) { .row = values[2], .column = values[3] }];
return;
}
case NeoVimServerMsgIdSetMenu:
[_bridge updateMenu];
return;
case NeoVimServerMsgIdBusyStart:
[_bridge busyStart];
return;
case NeoVimServerMsgIdBusyStop:
[_bridge busyStop];
return;
case NeoVimServerMsgIdMouseOn:
[_bridge mouseOn];
return;
case NeoVimServerMsgIdMouseOff:
[_bridge mouseOff];
return;
case NeoVimServerMsgIdModeChange: {
int *values = data_to_int_array(data, 1);
[_bridge modeChange:(Mode) values[0]];
return;
}
case NeoVimServerMsgIdSetScrollRegion: {
int *values = data_to_int_array(data, 4);
[_bridge setScrollRegionToTop:values[0] bottom:values[1] left:values[2] right:values[3]];
return;
}
case NeoVimServerMsgIdScroll: {
int *values = data_to_int_array(data, 1);
[_bridge scroll:values[0]];
return;
}
case NeoVimServerMsgIdSetHighlightAttributes: {
CellAttributes *values = data_to_CellAttributes_array(data, 1);
[_bridge highlightSet:values[0]];
return;
}
case NeoVimServerMsgIdPut:
case NeoVimServerMsgIdPutMarked: {
int *values = (int *) data.bytes;
int row = values[0];
int column = values[1];
NSString *string = [[NSString alloc] initWithBytes:(values + 2)
length:data.length - 2 * sizeof(int)
encoding:NSUTF8StringEncoding];
if (msgid == NeoVimServerMsgIdPut) {
[_bridge put:string screenCursor:(Position) { .row=row, .column=column }];
} else {
[_bridge putMarkedText:string screenCursor:(Position) { .row=row, .column=column }];
}
return;
}
case NeoVimServerMsgIdUnmark: {
int *values = data_to_int_array(data, 2);
[_bridge unmarkRow:values[0] column:values[1]];
return;
}
case NeoVimServerMsgIdBell:
[_bridge bell];
return;
case NeoVimServerMsgIdVisualBell:
[_bridge visualBell];
return;
case NeoVimServerMsgIdFlush:
[_bridge flush];
return;
case NeoVimServerMsgIdSetForeground: {
int *values = data_to_int_array(data, 1);
[_bridge updateForeground:values[0]];
return;
}
case NeoVimServerMsgIdSetBackground: {
int *values = data_to_int_array(data, 1);
[_bridge updateBackground:values[0]];
return;
}
case NeoVimServerMsgIdSetSpecial: {
int *values = data_to_int_array(data, 1);
[_bridge updateSpecial:values[0]];
return;
}
case NeoVimServerMsgIdSetTitle: {
NSString *string = [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding];
[_bridge setTitle:string];
return;
}
case NeoVimServerMsgIdSetIcon: {
NSString *string = [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding];
[_bridge setIcon:string];
return;
}
case NeoVimServerMsgIdStop:
[_bridge stop];
return;
default:
return;
}
}
@end