Merge remote-tracking branch 'origin/develop' into update-neovim

2024-12-25 14:52:19 +03:00 · 2018-01-22 19:50:45 +01:00 · 2018-01-22 19:50:45 +01:00 · 0d2b1e4fed
commit 0d2b1e4fed
parent c96a559191 25fd835f01
38 changed files with 1150 additions and 407 deletions
--- a/6
+++ b/6
@ -1,12 +1,12 @@
-github "ReactiveX/RxSwift" "4.0.0"
+github "ReactiveX/RxSwift" "4.1.1"
 github "PureLayout/PureLayout" == 3.0.2
 github "eonil/FileSystemEvents" "master"
 github "sparkle-project/Sparkle" == 1.18.1
 github "qvacua/CocoaFontAwesome" "master"
 github "qvacua/CocoaMarkdown" "master"
-github "sindresorhus/github-markdown-css" == 2.9.0
+github "sindresorhus/github-markdown-css" == 2.10.0
 github "httpswift/swifter" "stable"
 github "a2/MessagePack.swift" == 3.0.0
 github "antitypical/Result" == 3.2.4

-github "Quick/Nimble" == 7.0.1
+github "Quick/Nimble" == 7.0.3
--- a/Cartfile.resolved
+++ b/Cartfile.resolved
@ -1,11 +1,11 @@
 github "PureLayout/PureLayout" "v3.0.2"
-github "Quick/Nimble" "v7.0.1"
-github "ReactiveX/RxSwift" "4.0.0"
+github "Quick/Nimble" "v7.0.3"
+github "ReactiveX/RxSwift" "4.1.1"
 github "a2/MessagePack.swift" "3.0.0"
 github "antitypical/Result" "3.2.4"
 github "eonil/FileSystemEvents" "85a089104af37f04a6bf7f2d07d7a93cac0b4fe1"
 github "httpswift/swifter" "e36920ecb73aaf70cf811f16b67ea50ce7abe7d1"
 github "qvacua/CocoaFontAwesome" "71865fc2c0275ebc5c8601edc23290e85aca9979"
 github "qvacua/CocoaMarkdown" "5d1c1e3dd74486dfc358c9cc3ddd7e993842113d"
-github "sindresorhus/github-markdown-css" "v2.9.0"
+github "sindresorhus/github-markdown-css" "v2.10.0"
 github "sparkle-project/Sparkle" "1.18.1"
--- a/MsgPackRpc/MsgPackRpc.xcodeproj/project.pbxproj
+++ b/MsgPackRpc/MsgPackRpc.xcodeproj/project.pbxproj
@ -218,7 +218,7 @@
 				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
 				CODE_SIGN_IDENTITY = "-";
 				COPY_PHASE_STRIP = NO;
-				CURRENT_PROJECT_VERSION = 256;
+				CURRENT_PROJECT_VERSION = 257;
 				DEBUG_INFORMATION_FORMAT = dwarf;
 				ENABLE_STRICT_OBJC_MSGSEND = YES;
 				ENABLE_TESTABILITY = YES;
@ -278,7 +278,7 @@
 				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
 				CODE_SIGN_IDENTITY = "-";
 				COPY_PHASE_STRIP = NO;
-				CURRENT_PROJECT_VERSION = 256;
+				CURRENT_PROJECT_VERSION = 257;
 				DEBUG_INFORMATION_FORMAT = "dwarf-with-dsym";
 				ENABLE_NS_ASSERTIONS = NO;
 				ENABLE_STRICT_OBJC_MSGSEND = YES;
@ -308,7 +308,7 @@
 				COMBINE_HIDPI_IMAGES = YES;
 				DEFINES_MODULE = YES;
 				DYLIB_COMPATIBILITY_VERSION = 1;
-				DYLIB_CURRENT_VERSION = 256;
+				DYLIB_CURRENT_VERSION = 257;
 				DYLIB_INSTALL_NAME_BASE = "@rpath";
 				FRAMEWORK_VERSION = A;
 				INFOPLIST_FILE = MsgPackRpc/Info.plist;
@ -331,7 +331,7 @@
 				COMBINE_HIDPI_IMAGES = YES;
 				DEFINES_MODULE = YES;
 				DYLIB_COMPATIBILITY_VERSION = 1;
-				DYLIB_CURRENT_VERSION = 256;
+				DYLIB_CURRENT_VERSION = 257;
 				DYLIB_INSTALL_NAME_BASE = "@rpath";
 				FRAMEWORK_VERSION = A;
 				INFOPLIST_FILE = MsgPackRpc/Info.plist;
--- a/MsgPackRpc/MsgPackRpc/Info.plist
+++ b/MsgPackRpc/MsgPackRpc/Info.plist
@ -15,9 +15,9 @@
 	<key>CFBundlePackageType</key>
 	<string>FMWK</string>
 	<key>CFBundleShortVersionString</key>
-	<string>0.20.4-256</string>
+	<string>SNAPSHOT-257</string>
 	<key>CFBundleVersion</key>
-	<string>256</string>
+	<string>257</string>
 	<key>NSHumanReadableCopyright</key>
 	<string>Copyright © 2017 Tae Won Ha. All rights reserved.</string>
 	<key>NSPrincipalClass</key>
--- a/NvimMsgPack/NvimMsgPack.xcodeproj/project.pbxproj
+++ b/NvimMsgPack/NvimMsgPack.xcodeproj/project.pbxproj
@ -218,7 +218,7 @@
 				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
 				CODE_SIGN_IDENTITY = "-";
 				COPY_PHASE_STRIP = NO;
-				CURRENT_PROJECT_VERSION = 256;
+				CURRENT_PROJECT_VERSION = 257;
 				DEBUG_INFORMATION_FORMAT = dwarf;
 				ENABLE_STRICT_OBJC_MSGSEND = YES;
 				ENABLE_TESTABILITY = YES;
@ -278,7 +278,7 @@
 				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
 				CODE_SIGN_IDENTITY = "-";
 				COPY_PHASE_STRIP = NO;
-				CURRENT_PROJECT_VERSION = 256;
+				CURRENT_PROJECT_VERSION = 257;
 				DEBUG_INFORMATION_FORMAT = "dwarf-with-dsym";
 				ENABLE_NS_ASSERTIONS = NO;
 				ENABLE_STRICT_OBJC_MSGSEND = YES;
@ -308,7 +308,7 @@
 				COMBINE_HIDPI_IMAGES = YES;
 				DEFINES_MODULE = YES;
 				DYLIB_COMPATIBILITY_VERSION = 1;
-				DYLIB_CURRENT_VERSION = 256;
+				DYLIB_CURRENT_VERSION = 257;
 				DYLIB_INSTALL_NAME_BASE = "@rpath";
 				FRAMEWORK_VERSION = A;
 				INFOPLIST_FILE = NvimMsgPack/Info.plist;
@ -331,7 +331,7 @@
 				COMBINE_HIDPI_IMAGES = YES;
 				DEFINES_MODULE = YES;
 				DYLIB_COMPATIBILITY_VERSION = 1;
-				DYLIB_CURRENT_VERSION = 256;
+				DYLIB_CURRENT_VERSION = 257;
 				DYLIB_INSTALL_NAME_BASE = "@rpath";
 				FRAMEWORK_VERSION = A;
 				INFOPLIST_FILE = NvimMsgPack/Info.plist;
--- a/NvimMsgPack/NvimMsgPack/Info.plist
+++ b/NvimMsgPack/NvimMsgPack/Info.plist
@ -15,9 +15,9 @@
 	<key>CFBundlePackageType</key>
 	<string>FMWK</string>
 	<key>CFBundleShortVersionString</key>
-	<string>0.20.4-256</string>
+	<string>SNAPSHOT-257</string>
 	<key>CFBundleVersion</key>
-	<string>256</string>
+	<string>257</string>
 	<key>NSHumanReadableCopyright</key>
 	<string>Copyright © 2017 Tae Won Ha. All rights reserved.</string>
 	<key>NSPrincipalClass</key>
--- a/NvimView/NeoVimMsgIds.h
+++ b/NvimView/NeoVimMsgIds.h
@ -3,7 +3,7 @@
 * See LICENSE
 */

-@import Foundation;
+#import <Foundation/Foundation.h>


 typedef NS_ENUM(NSInteger, NeoVimServerMsgId) {
@ -12,7 +12,6 @@ typedef NS_ENUM(NSInteger, NeoVimServerMsgId) {
    NeoVimServerMsgIdResize,
    NeoVimServerMsgIdClear,
    NeoVimServerMsgIdEolClear,
-    NeoVimServerMsgIdSetPosition,
    NeoVimServerMsgIdSetMenu,
    NeoVimServerMsgIdBusyStart,
    NeoVimServerMsgIdBusyStop,
@ -21,9 +20,6 @@ typedef NS_ENUM(NSInteger, NeoVimServerMsgId) {
    NeoVimServerMsgIdModeChange,
    NeoVimServerMsgIdSetScrollRegion,
    NeoVimServerMsgIdScroll,
-    NeoVimServerMsgIdSetHighlightAttributes,
-    NeoVimServerMsgIdPut,
-    NeoVimServerMsgIdPutMarked,
    NeoVimServerMsgIdUnmark,
    NeoVimServerMsgIdBell,
    NeoVimServerMsgIdVisualBell,
--- a/NvimView/NvimServer/NvimServer.h
+++ b/NvimView/NvimServer/NvimServer.h
@ -5,7 +5,7 @@

@import Foundation;

-#import "NeoVimMsgIds.h"
+#import "SharedTypes.h"


@interface NvimServer : NSObject
--- a/NvimView/NvimServer/NvimServer.m
+++ b/NvimView/NvimServer/NvimServer.m
@ -14,7 +14,6 @@
 #define FileInfo CarbonFileInfo
 #define Boolean CarbonBoolean

-#import <nvim/vim.h>
 #import <nvim/main.h>


@ -80,10 +79,6 @@ static CFDataRef local_server_callback(CFMessagePortRef local, SInt32 msgid, CFD

      case NeoVimAgentMsgIdFocusGained: return data_sync(data, outputCondition, neovim_focus_gained);

-#ifdef DEBUG
-      case NeoVimAgentDebug1: return data_sync(data, outputCondition, neovim_debug1);
-#endif
-
      default: return NULL;

    }
--- a/NvimView/NvimServer/server_ui.m
+++ b/NvimView/NvimServer/server_ui.m
@ -10,6 +10,7 @@
 #import "NvimServer.h"
 #import "CocoaCategories.h"
 #import "DataWrapper.h"
+#import "SharedTypes.h"

 // FileInfo and Boolean are #defined by Carbon and NeoVim:
 // Since we don't need the Carbon versions of them, we rename
@ -28,29 +29,11 @@
 #import <nvim/screen.h>
 #import <nvim/edit.h>
 #import <nvim/syntax.h>
-#import <nvim/api/window.h>
 #import <nvim/aucmd.h>
-#import <nvim/quickfix.h>


 #define pun_type(t, x) (*((t *) (&(x))))

-// From NeoVimUiBridgeProtocol.h
-typedef NS_ENUM(NSUInteger, FontTrait) {
-  FontTraitNone      = 0,
-  FontTraitItalic    = (1 << 0),
-  FontTraitBold      = (1 << 1),
-  FontTraitUnderline = (1 << 2),
-  FontTraitUndercurl = (1 << 3)
-};
-
-typedef struct {
-  FontTrait fontTrait;
-
-  NSInteger foreground;
-  NSInteger background;
-  NSInteger special;
-} CellAttributes;

 static NSInteger _default_foreground = 0xFF000000;
 static NSInteger _default_background = 0xFFFFFFFF;
@ -98,6 +81,8 @@ static bool _dirty = false;
 static NSInteger _initialWidth = 30;
 static NSInteger _initialHeight = 15;

+static NSMutableArray <NSData *> *render_data;
+
 #pragma mark Helper functions
 static inline String vim_string_from(NSString *str) {
  return (String) { .data = (char *) str.cstr, .size = str.clength };
@ -159,6 +144,16 @@ static HlAttrs HlAttrsFromAttrCode(int attr_code) {
  return rgb_attrs;
 }

+static void add_to_render_data(RenderDataType type, NSData *data) {
+  NSMutableData *rData = [NSMutableData new];
+
+  [rData appendBytes:&type length:sizeof(RenderDataType)];
+  [rData appendData:data];
+
+  [render_data addObject:rData];
+  [rData release];
+}
+
 static int foreground_for(HlAttrs attrs) {
  return attrs.reverse ? attrs.background: attrs.foreground;
 }
@ -242,6 +237,8 @@ static void server_ui_scheduler(Event event, void *d) {
 }

 static void server_ui_main(UIBridgeData *bridge, UI *ui) {
+  render_data = [NSMutableArray new];
+
  Loop loop;
  loop_init(&loop, NULL);

@ -269,12 +266,28 @@ static void server_ui_main(UIBridgeData *bridge, UI *ui) {

  xfree(_server_ui_data);
  xfree(ui);
+
+  [render_data release];
 }

 #pragma mark NeoVim's UI callbacks

+static void server_ui_flush(UI *ui __unused) {
+  @autoreleasepool {
+    if (render_data.count == 0) {
+      return;
+    }
+
+    [_neovim_server sendMessageWithId:NeoVimServerMsgIdFlush
+                                 data:[NSKeyedArchiver archivedDataWithRootObject:render_data]];
+    [render_data removeAllObjects];
+  }
+}
+
 static void server_ui_resize(UI *ui __unused, Integer width, Integer height) {
  @autoreleasepool {
+    server_ui_flush(NULL);
+
    NSInteger values[] = {width, height};
    NSData *data = [[NSData alloc] initWithBytes:values length:(2 * sizeof(NSInteger))];
    [_neovim_server sendMessageWithId:NeoVimServerMsgIdResize data:data];
@ -283,10 +296,18 @@ static void server_ui_resize(UI *ui __unused, Integer width, Integer height) {
 }

 static void server_ui_clear(UI *ui __unused) {
+  @autoreleasepool {
+    server_ui_flush(NULL);
+  }
+
  [_neovim_server sendMessageWithId:NeoVimServerMsgIdClear];
 }

 static void server_ui_eol_clear(UI *ui __unused) {
+  @autoreleasepool {
+    server_ui_flush(NULL);
+  }
+
  [_neovim_server sendMessageWithId:NeoVimServerMsgIdEolClear];
 }

@ -303,7 +324,7 @@ static void server_ui_cursor_goto(UI *ui __unused, Integer row, Integer col) {
    DLOG("%d:%d - %d:%d - %d:%d", values[0], values[1], values[2], values[3]);

    NSData *data = [[NSData alloc] initWithBytes:values length:(4 * sizeof(NSInteger))];
-    [_neovim_server sendMessageWithId:NeoVimServerMsgIdSetPosition data:data];
+    add_to_render_data(RenderDataTypeGoto, data);
    [data release];
  }
 }
@ -346,6 +367,8 @@ static void server_ui_set_scroll_region(UI *ui __unused, Integer top, Integer bo
                                        Integer left, Integer right) {

  @autoreleasepool {
+    server_ui_flush(NULL);
+
    NSInteger values[] = {top, bot, left, right};
    NSData *data = [[NSData alloc] initWithBytes:values length:(4 * sizeof(NSInteger))];
    [_neovim_server sendMessageWithId:NeoVimServerMsgIdSetScrollRegion data:data];
@ -355,6 +378,8 @@ static void server_ui_set_scroll_region(UI *ui __unused, Integer top, Integer bo

 static void server_ui_scroll(UI *ui __unused, Integer count) {
  @autoreleasepool {
+    server_ui_flush(NULL);
+
    NSInteger value = count;
    NSData *data = [[NSData alloc] initWithBytes:&value length:(1 * sizeof(NSInteger))];
    [_neovim_server sendMessageWithId:NeoVimServerMsgIdScroll data:data];
@ -389,7 +414,7 @@ static void server_ui_highlight_set(UI *ui __unused, HlAttrs attrs) {

  @autoreleasepool {
    NSData *data = [[NSData alloc] initWithBytes:&cellAttrs length:sizeof(CellAttributes)];
-    [_neovim_server sendMessageWithId:NeoVimServerMsgIdSetHighlightAttributes data:data];
+    add_to_render_data(RenderDataTypeHighlight, data);
    [data release];
  }
 }
@ -405,7 +430,7 @@ static void server_ui_put(UI *ui __unused, String str) {
    if (_marked_text != nil && _marked_row == _put_row && _marked_column == _put_column) {

      DLOG("putting marked text: '%s'", string.cstr);
-      [_neovim_server sendMessageWithId:NeoVimServerMsgIdPutMarked data:data];
+      add_to_render_data(RenderDataTypePutMarked, data);

    } else if (_marked_text != nil
        && str.size == 0
@ -413,12 +438,12 @@ static void server_ui_put(UI *ui __unused, String str) {
        && _marked_column == _put_column - 1) {

      DLOG("putting marked text cuz zero");
-      [_neovim_server sendMessageWithId:NeoVimServerMsgIdPutMarked data:data];
+      add_to_render_data(RenderDataTypePutMarked, data);

    } else {

      DLOG("putting non-marked text: '%s'", string.cstr);
-      [_neovim_server sendMessageWithId:NeoVimServerMsgIdPut data:data];
+      add_to_render_data(RenderDataTypePut, data);

    }

@ -436,10 +461,6 @@ static void server_ui_visual_bell(UI *ui __unused) {
  [_neovim_server sendMessageWithId:NeoVimServerMsgIdVisualBell];
 }

-static void server_ui_flush(UI *ui __unused) {
-  [_neovim_server sendMessageWithId:NeoVimServerMsgIdFlush];
-}
-
 static void server_ui_update_fg(UI *ui __unused, Integer fg) {
  @autoreleasepool {
    NSInteger value[1];
@ -615,7 +636,7 @@ void custom_ui_autocmds_groups(
      send_dirty_status();
    }

-    NSUInteger eventCode = event;
+    NSInteger eventCode = (NSInteger) event;

    NSMutableData *data;
    if (buf == NULL) {
@ -762,11 +783,11 @@ void neovim_escaped_filenames(void **argv) {

 void neovim_resize(void **argv) {
  work_and_write_data_sync(argv, ^NSData *(NSData *data) {
-    const int *values = data.bytes;
-    int width = values[0];
-    int height = values[1];
+    const NSInteger *values = data.bytes;
+    NSInteger width = values[0];
+    NSInteger height = values[1];

-    set_ui_size(_server_ui_data->bridge, width, height);
+    set_ui_size(_server_ui_data->bridge, (int) width, (int) height);
    ui_refresh();

    return nil;
--- a/NvimView/NvimView.xcodeproj/project.pbxproj
+++ b/NvimView/NvimView.xcodeproj/project.pbxproj
@ -8,18 +8,18 @@

 /* Begin PBXBuildFile section */
 		1929B40A751BDA2882D4FC94 /* NvimViewObjects.swift in Sources */ = {isa = PBXBuildFile; fileRef = 1929B22A0CAD417EC3790F02 /* NvimViewObjects.swift */; };
+		1929B6C618D440AC4D3FFE3A /* ThreadWithBlock.h in Headers */ = {isa = PBXBuildFile; fileRef = 1929BC4314B428D5011D100A /* ThreadWithBlock.h */; settings = {ATTRIBUTES = (Public, ); }; };
 		1929B86897DAEFDBABAB1C14 /* NvimApiExtension.swift in Sources */ = {isa = PBXBuildFile; fileRef = 1929BBD7F88AE4F01E626691 /* NvimApiExtension.swift */; };
-		4B2016EE1FD45EED0038528A /* NvimAutoCommandEvent.generated.m in Sources */ = {isa = PBXBuildFile; fileRef = 4B2016EC1FD45EED0038528A /* NvimAutoCommandEvent.generated.m */; };
-		4B2016EF1FD45EED0038528A /* NvimAutoCommandEvent.generated.h in Headers */ = {isa = PBXBuildFile; fileRef = 4B2016ED1FD45EED0038528A /* NvimAutoCommandEvent.generated.h */; settings = {ATTRIBUTES = (Public, ); }; };
+		1929BA62EF7586682CF68E8C /* ThreadWithBlock.m in Sources */ = {isa = PBXBuildFile; fileRef = 1929B4A84091D5BAA0493B44 /* ThreadWithBlock.m */; };
+		1929BA70C221E3C199833B8C /* UiBridge.swift in Sources */ = {isa = PBXBuildFile; fileRef = 1929B52174EC68D2974B5BAE /* UiBridge.swift */; };
+		4B177886201220F300E32FF0 /* SharedTypes.h in Headers */ = {isa = PBXBuildFile; fileRef = 1929B4F32708E99C40A57020 /* SharedTypes.h */; settings = {ATTRIBUTES = (Public, ); }; };
 		4B8662E81FDC3F9F007F490D /* vimr.vim in CopyFiles */ = {isa = PBXBuildFile; fileRef = 4B8662E41FDC3D4F007F490D /* vimr.vim */; };
-		4B90F02D1FD2AFAE008A39E0 /* NvimUiBridgeProtocol.h in Headers */ = {isa = PBXBuildFile; fileRef = 4B90F00F1FD2AFAC008A39E0 /* NvimUiBridgeProtocol.h */; settings = {ATTRIBUTES = (Public, ); }; };
 		4B90F02E1FD2AFAE008A39E0 /* NvimView.swift in Sources */ = {isa = PBXBuildFile; fileRef = 4B90F0101FD2AFAC008A39E0 /* NvimView.swift */; };
 		4B90F02F1FD2AFAE008A39E0 /* NvimView+Resize.swift in Sources */ = {isa = PBXBuildFile; fileRef = 4B90F0111FD2AFAC008A39E0 /* NvimView+Resize.swift */; };
 		4B90F0301FD2AFAE008A39E0 /* KeyUtils.swift in Sources */ = {isa = PBXBuildFile; fileRef = 4B90F0121FD2AFAC008A39E0 /* KeyUtils.swift */; };
 		4B90F0321FD2AFAE008A39E0 /* NvimView+Dragging.swift in Sources */ = {isa = PBXBuildFile; fileRef = 4B90F0141FD2AFAC008A39E0 /* NvimView+Dragging.swift */; };
 		4B90F0341FD2AFAE008A39E0 /* CocoaExtensions.swift in Sources */ = {isa = PBXBuildFile; fileRef = 4B90F0161FD2AFAC008A39E0 /* CocoaExtensions.swift */; };
 		4B90F0351FD2AFAE008A39E0 /* NvimView+Mouse.swift in Sources */ = {isa = PBXBuildFile; fileRef = 4B90F0171FD2AFAC008A39E0 /* NvimView+Mouse.swift */; };
-		4B90F0371FD2AFAE008A39E0 /* UiClient.h in Headers */ = {isa = PBXBuildFile; fileRef = 4B90F0191FD2AFAC008A39E0 /* UiClient.h */; settings = {ATTRIBUTES = (Public, ); }; };
 		4B90F0381FD2AFAE008A39E0 /* ColorUtils.swift in Sources */ = {isa = PBXBuildFile; fileRef = 4B90F01A1FD2AFAC008A39E0 /* ColorUtils.swift */; };
 		4B90F0391FD2AFAE008A39E0 /* NvimView+Api.swift in Sources */ = {isa = PBXBuildFile; fileRef = 4B90F01B1FD2AFAC008A39E0 /* NvimView+Api.swift */; };
 		4B90F03A1FD2AFAE008A39E0 /* NvimView+Key.swift in Sources */ = {isa = PBXBuildFile; fileRef = 4B90F01C1FD2AFAC008A39E0 /* NvimView+Key.swift */; };
@ -34,9 +34,7 @@
 		4B90F0441FD2AFAE008A39E0 /* MMCoreTextView.h in Headers */ = {isa = PBXBuildFile; fileRef = 4B90F0261FD2AFAD008A39E0 /* MMCoreTextView.h */; settings = {ATTRIBUTES = (Private, ); }; };
 		4B90F0451FD2AFAE008A39E0 /* Logger.swift in Sources */ = {isa = PBXBuildFile; fileRef = 4B90F0271FD2AFAD008A39E0 /* Logger.swift */; };
 		4B90F0461FD2AFAE008A39E0 /* Grid.swift in Sources */ = {isa = PBXBuildFile; fileRef = 4B90F0281FD2AFAD008A39E0 /* Grid.swift */; };
-		4B90F0481FD2AFAE008A39E0 /* NvimUiBridgeProtocol.m in Sources */ = {isa = PBXBuildFile; fileRef = 4B90F02A1FD2AFAD008A39E0 /* NvimUiBridgeProtocol.m */; };
 		4B90F0491FD2AFAE008A39E0 /* CellAttributes.swift in Sources */ = {isa = PBXBuildFile; fileRef = 4B90F02B1FD2AFAD008A39E0 /* CellAttributes.swift */; };
-		4B90F04A1FD2AFAE008A39E0 /* UiClient.m in Sources */ = {isa = PBXBuildFile; fileRef = 4B90F02C1FD2AFAE008A39E0 /* UiClient.m */; };
 		4B90F0521FD2AFD3008A39E0 /* main.m in Sources */ = {isa = PBXBuildFile; fileRef = 4B90F0511FD2AFD3008A39E0 /* main.m */; };
 		4B90F0661FD2AFF7008A39E0 /* server_ui.m in Sources */ = {isa = PBXBuildFile; fileRef = 4B90F0561FD2AFF7008A39E0 /* server_ui.m */; settings = {COMPILER_FLAGS = "-fno-objc-arc"; }; };
 		4B90F0681FD2AFF7008A39E0 /* CocoaCategories.m in Sources */ = {isa = PBXBuildFile; fileRef = 4B90F05A1FD2AFF7008A39E0 /* CocoaCategories.m */; };
@ -44,9 +42,8 @@
 		4B90F06B1FD2AFF7008A39E0 /* NvimServer.m in Sources */ = {isa = PBXBuildFile; fileRef = 4B90F0641FD2AFF7008A39E0 /* NvimServer.m */; };
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 		4B90F0711FD2B9F1008A39E0 /* NvimMsgPack.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 4B90F0731FD2B9F1008A39E0 /* NvimMsgPack.framework */; };
-		4B90F0781FD2BA7B008A39E0 /* Logger.h in Headers */ = {isa = PBXBuildFile; fileRef = 4B90F0771FD2BA7B008A39E0 /* Logger.h */; settings = {ATTRIBUTES = (Private, ); }; };
-		4B90F07B1FD30650008A39E0 /* NeoVimMsgIds.h in Headers */ = {isa = PBXBuildFile; fileRef = 4B90F0591FD2AFF7008A39E0 /* NeoVimMsgIds.h */; settings = {ATTRIBUTES = (Private, ); }; };
 		4BC5B0431FE551DF0071D64F /* RxSwift.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 4BC5B0421FE551DF0071D64F /* RxSwift.framework */; };
+		4BD874302014C2600039888E /* NvimAutoCommandEvent.generated.swift in Sources */ = {isa = PBXBuildFile; fileRef = 4BD8742F2014C25F0039888E /* NvimAutoCommandEvent.generated.swift */; };
 		4BE45C081FD2D4E3005C0A95 /* NvimServer in CopyFiles */ = {isa = PBXBuildFile; fileRef = 4B90F04F1FD2AFD3008A39E0 /* NvimServer */; settings = {ATTRIBUTES = (CodeSignOnCopy, ); }; };
 		4BE45C0C1FD2DA49005C0A95 /* runtime in Resources */ = {isa = PBXBuildFile; fileRef = 4BE45C0B1FD2DA49005C0A95 /* runtime */; };
 		4BF18C5D1FD2EEE400DF95D1 /* NvimView.h in Headers */ = {isa = PBXBuildFile; fileRef = 4BF18C5C1FD2EEE400DF95D1 /* NvimView.h */; settings = {ATTRIBUTES = (Public, ); }; };
@ -96,20 +93,20 @@

 /* Begin PBXFileReference section */
 		1929B22A0CAD417EC3790F02 /* NvimViewObjects.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = NvimViewObjects.swift; sourceTree = "<group>"; };
+		1929B4A84091D5BAA0493B44 /* ThreadWithBlock.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = ThreadWithBlock.m; sourceTree = "<group>"; };
+		1929B4F32708E99C40A57020 /* SharedTypes.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = SharedTypes.h; sourceTree = "<group>"; };
+		1929B52174EC68D2974B5BAE /* UiBridge.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = UiBridge.swift; sourceTree = "<group>"; };
 		1929BBD7F88AE4F01E626691 /* NvimApiExtension.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = NvimApiExtension.swift; sourceTree = "<group>"; };
-		4B2016EC1FD45EED0038528A /* NvimAutoCommandEvent.generated.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = NvimAutoCommandEvent.generated.m; sourceTree = "<group>"; };
-		4B2016ED1FD45EED0038528A /* NvimAutoCommandEvent.generated.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = NvimAutoCommandEvent.generated.h; sourceTree = "<group>"; };
+		1929BC4314B428D5011D100A /* ThreadWithBlock.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = ThreadWithBlock.h; sourceTree = "<group>"; };
 		4B8662E41FDC3D4F007F490D /* vimr.vim */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text; path = vimr.vim; sourceTree = "<group>"; };
 		4B90F0041FD2AF59008A39E0 /* NvimView.framework */ = {isa = PBXFileReference; explicitFileType = wrapper.framework; includeInIndex = 0; path = NvimView.framework; sourceTree = BUILT_PRODUCTS_DIR; };
 		4B90F0081FD2AF59008A39E0 /* Info.plist */ = {isa = PBXFileReference; lastKnownFileType = text.plist.xml; path = Info.plist; sourceTree = "<group>"; };
-		4B90F00F1FD2AFAC008A39E0 /* NvimUiBridgeProtocol.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = NvimUiBridgeProtocol.h; sourceTree = "<group>"; };
 		4B90F0101FD2AFAC008A39E0 /* NvimView.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = NvimView.swift; sourceTree = "<group>"; };
 		4B90F0111FD2AFAC008A39E0 /* NvimView+Resize.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = "NvimView+Resize.swift"; sourceTree = "<group>"; };
 		4B90F0121FD2AFAC008A39E0 /* KeyUtils.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = KeyUtils.swift; sourceTree = "<group>"; };
 		4B90F0141FD2AFAC008A39E0 /* NvimView+Dragging.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = "NvimView+Dragging.swift"; sourceTree = "<group>"; };
 		4B90F0161FD2AFAC008A39E0 /* CocoaExtensions.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = CocoaExtensions.swift; sourceTree = "<group>"; };
 		4B90F0171FD2AFAC008A39E0 /* NvimView+Mouse.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = "NvimView+Mouse.swift"; sourceTree = "<group>"; };
-		4B90F0191FD2AFAC008A39E0 /* UiClient.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = UiClient.h; sourceTree = "<group>"; };
 		4B90F01A1FD2AFAC008A39E0 /* ColorUtils.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = ColorUtils.swift; sourceTree = "<group>"; };
 		4B90F01B1FD2AFAC008A39E0 /* NvimView+Api.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = "NvimView+Api.swift"; sourceTree = "<group>"; };
 		4B90F01C1FD2AFAC008A39E0 /* NvimView+Key.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = "NvimView+Key.swift"; sourceTree = "<group>"; };
@ -125,14 +122,11 @@
 		4B90F0261FD2AFAD008A39E0 /* MMCoreTextView.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = MMCoreTextView.h; sourceTree = "<group>"; };
 		4B90F0271FD2AFAD008A39E0 /* Logger.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = Logger.swift; sourceTree = "<group>"; };
 		4B90F0281FD2AFAD008A39E0 /* Grid.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = Grid.swift; sourceTree = "<group>"; };
-		4B90F02A1FD2AFAD008A39E0 /* NvimUiBridgeProtocol.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = NvimUiBridgeProtocol.m; sourceTree = "<group>"; };
 		4B90F02B1FD2AFAD008A39E0 /* CellAttributes.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = CellAttributes.swift; sourceTree = "<group>"; };
-		4B90F02C1FD2AFAE008A39E0 /* UiClient.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = UiClient.m; sourceTree = "<group>"; };
 		4B90F04F1FD2AFD3008A39E0 /* NvimServer */ = {isa = PBXFileReference; explicitFileType = "compiled.mach-o.executable"; includeInIndex = 0; path = NvimServer; sourceTree = BUILT_PRODUCTS_DIR; };
 		4B90F0511FD2AFD3008A39E0 /* main.m */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.objc; path = main.m; sourceTree = "<group>"; };
 		4B90F0561FD2AFF7008A39E0 /* server_ui.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = server_ui.m; sourceTree = "<group>"; };
 		4B90F0571FD2AFF7008A39E0 /* CocoaCategories.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = CocoaCategories.h; sourceTree = "<group>"; };
-		4B90F0591FD2AFF7008A39E0 /* NeoVimMsgIds.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = NeoVimMsgIds.h; sourceTree = "<group>"; };
 		4B90F05A1FD2AFF7008A39E0 /* CocoaCategories.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = CocoaCategories.m; sourceTree = "<group>"; };
 		4B90F05B1FD2AFF7008A39E0 /* Logging.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = Logging.h; sourceTree = "<group>"; };
 		4B90F05C1FD2AFF7008A39E0 /* DataWrapper.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = DataWrapper.h; sourceTree = "<group>"; };
@ -142,8 +136,8 @@
 		4B90F0641FD2AFF7008A39E0 /* NvimServer.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = NvimServer.m; sourceTree = "<group>"; };
 		4B90F0721FD2B9F1008A39E0 /* MsgPackRpc.framework */ = {isa = PBXFileReference; explicitFileType = wrapper.framework; path = MsgPackRpc.framework; sourceTree = BUILT_PRODUCTS_DIR; };
 		4B90F0731FD2B9F1008A39E0 /* NvimMsgPack.framework */ = {isa = PBXFileReference; explicitFileType = wrapper.framework; path = NvimMsgPack.framework; sourceTree = BUILT_PRODUCTS_DIR; };
-		4B90F0771FD2BA7B008A39E0 /* Logger.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; name = Logger.h; path = NvimView/Logger.h; sourceTree = SOURCE_ROOT; };
 		4BC5B0421FE551DF0071D64F /* RxSwift.framework */ = {isa = PBXFileReference; lastKnownFileType = wrapper.framework; name = RxSwift.framework; path = ../Carthage/Build/Mac/RxSwift.framework; sourceTree = "<group>"; };
+		4BD8742F2014C25F0039888E /* NvimAutoCommandEvent.generated.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = NvimAutoCommandEvent.generated.swift; sourceTree = "<group>"; };
 		4BE45C0B1FD2DA49005C0A95 /* runtime */ = {isa = PBXFileReference; lastKnownFileType = folder; name = runtime; path = neovim/runtime; sourceTree = "<group>"; };
 		4BF18C5A1FD2E72D00DF95D1 /* nvim */ = {isa = PBXFileReference; lastKnownFileType = folder; name = nvim; path = neovim/src/nvim; sourceTree = "<group>"; };
 		4BF18C5B1FD2E74800DF95D1 /* auto */ = {isa = PBXFileReference; lastKnownFileType = folder; name = auto; path = neovim/build/src/nvim/auto; sourceTree = "<group>"; };
@ -177,11 +171,11 @@
 				4BF18C5B1FD2E74800DF95D1 /* auto */,
 				4BF18C5A1FD2E72D00DF95D1 /* nvim */,
 				4BE45C0B1FD2DA49005C0A95 /* runtime */,
-				4B90F0591FD2AFF7008A39E0 /* NeoVimMsgIds.h */,
 				4B90F0061FD2AF59008A39E0 /* NvimView */,
 				4B90F0501FD2AFD3008A39E0 /* NvimServer */,
 				4B90F0051FD2AF59008A39E0 /* Products */,
 				4B90F06F1FD2B9F1008A39E0 /* Frameworks */,
+				1929B4F32708E99C40A57020 /* SharedTypes.h */,
 			);
 			sourceTree = "<group>";
 		};
@ -209,13 +203,8 @@
 				4B90F0271FD2AFAD008A39E0 /* Logger.swift */,
 				4B90F0261FD2AFAD008A39E0 /* MMCoreTextView.h */,
 				4B90F0201FD2AFAD008A39E0 /* MMCoreTextView.m */,
-				4B90F0191FD2AFAC008A39E0 /* UiClient.h */,
-				4B90F02C1FD2AFAE008A39E0 /* UiClient.m */,
-				4B2016ED1FD45EED0038528A /* NvimAutoCommandEvent.generated.h */,
-				4B2016EC1FD45EED0038528A /* NvimAutoCommandEvent.generated.m */,
+				4BD8742F2014C25F0039888E /* NvimAutoCommandEvent.generated.swift */,
 				4B90F01D1FD2AFAC008A39E0 /* NvimObjectsExtensions.swift */,
-				4B90F00F1FD2AFAC008A39E0 /* NvimUiBridgeProtocol.h */,
-				4B90F02A1FD2AFAD008A39E0 /* NvimUiBridgeProtocol.m */,
 				4B90F0101FD2AFAC008A39E0 /* NvimView.swift */,
 				4B90F01B1FD2AFAC008A39E0 /* NvimView+Api.swift */,
 				4B90F0141FD2AFAC008A39E0 /* NvimView+Dragging.swift */,
@ -228,9 +217,11 @@
 				4B90F0241FD2AFAD008A39E0 /* NvimView+UiBridge.swift */,
 				4B90F0231FD2AFAD008A39E0 /* TextDrawer.h */,
 				4B90F0221FD2AFAD008A39E0 /* TextDrawer.m */,
-				4B90F0771FD2BA7B008A39E0 /* Logger.h */,
 				1929B22A0CAD417EC3790F02 /* NvimViewObjects.swift */,
 				1929BBD7F88AE4F01E626691 /* NvimApiExtension.swift */,
+				1929B52174EC68D2974B5BAE /* UiBridge.swift */,
+				1929B4A84091D5BAA0493B44 /* ThreadWithBlock.m */,
+				1929BC4314B428D5011D100A /* ThreadWithBlock.h */,
 			);
 			path = NvimView;
 			sourceTree = "<group>";
@ -271,12 +262,9 @@
 			files = (
 				4BF18C5D1FD2EEE400DF95D1 /* NvimView.h in Headers */,
 				4B90F0411FD2AFAE008A39E0 /* TextDrawer.h in Headers */,
-				4B90F0371FD2AFAE008A39E0 /* UiClient.h in Headers */,
-				4B90F02D1FD2AFAE008A39E0 /* NvimUiBridgeProtocol.h in Headers */,
-				4B2016EF1FD45EED0038528A /* NvimAutoCommandEvent.generated.h in Headers */,
+				1929B6C618D440AC4D3FFE3A /* ThreadWithBlock.h in Headers */,
+				4B177886201220F300E32FF0 /* SharedTypes.h in Headers */,
 				4B90F0441FD2AFAE008A39E0 /* MMCoreTextView.h in Headers */,
-				4B90F0781FD2BA7B008A39E0 /* Logger.h in Headers */,
-				4B90F07B1FD30650008A39E0 /* NeoVimMsgIds.h in Headers */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 		};
@ -406,18 +394,16 @@
 			files = (
 				4B90F0381FD2AFAE008A39E0 /* ColorUtils.swift in Sources */,
 				4B90F03E1FD2AFAE008A39E0 /* MMCoreTextView.m in Sources */,
-				4B90F0481FD2AFAE008A39E0 /* NvimUiBridgeProtocol.m in Sources */,
 				4B90F03F1FD2AFAE008A39E0 /* NvimView+Draw.swift in Sources */,
 				4B90F02F1FD2AFAE008A39E0 /* NvimView+Resize.swift in Sources */,
 				4B90F0341FD2AFAE008A39E0 /* CocoaExtensions.swift in Sources */,
 				4B90F0461FD2AFAE008A39E0 /* Grid.swift in Sources */,
 				4B90F0421FD2AFAE008A39E0 /* NvimView+UiBridge.swift in Sources */,
 				4B90F0401FD2AFAE008A39E0 /* TextDrawer.m in Sources */,
+				4BD874302014C2600039888E /* NvimAutoCommandEvent.generated.swift in Sources */,
 				4B90F02E1FD2AFAE008A39E0 /* NvimView.swift in Sources */,
 				4B90F03C1FD2AFAE008A39E0 /* NvimView+TouchBar.swift in Sources */,
-				4B2016EE1FD45EED0038528A /* NvimAutoCommandEvent.generated.m in Sources */,
 				4B90F03B1FD2AFAE008A39E0 /* NvimObjectsExtensions.swift in Sources */,
-				4B90F04A1FD2AFAE008A39E0 /* UiClient.m in Sources */,
 				4B90F0351FD2AFAE008A39E0 /* NvimView+Mouse.swift in Sources */,
 				4B90F0431FD2AFAE008A39E0 /* NvimView+MenuItems.swift in Sources */,
 				4B90F0391FD2AFAE008A39E0 /* NvimView+Api.swift in Sources */,
@ -428,6 +414,8 @@
 				4B90F03A1FD2AFAE008A39E0 /* NvimView+Key.swift in Sources */,
 				1929B40A751BDA2882D4FC94 /* NvimViewObjects.swift in Sources */,
 				1929B86897DAEFDBABAB1C14 /* NvimApiExtension.swift in Sources */,
+				1929BA70C221E3C199833B8C /* UiBridge.swift in Sources */,
+				1929BA62EF7586682CF68E8C /* ThreadWithBlock.m in Sources */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 		};
@ -484,7 +472,7 @@
 				CLANG_WARN_UNREACHABLE_CODE = YES;
 				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
 				COPY_PHASE_STRIP = NO;
-				CURRENT_PROJECT_VERSION = 256;
+				CURRENT_PROJECT_VERSION = 257;
 				DEBUG_INFORMATION_FORMAT = dwarf;
 				ENABLE_STRICT_OBJC_MSGSEND = YES;
 				ENABLE_TESTABILITY = YES;
@ -542,7 +530,7 @@
 				CLANG_WARN_UNREACHABLE_CODE = YES;
 				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
 				COPY_PHASE_STRIP = NO;
-				CURRENT_PROJECT_VERSION = 256;
+				CURRENT_PROJECT_VERSION = 257;
 				DEBUG_INFORMATION_FORMAT = "dwarf-with-dsym";
 				ENABLE_NS_ASSERTIONS = NO;
 				ENABLE_STRICT_OBJC_MSGSEND = YES;
@ -569,7 +557,7 @@
 				COMBINE_HIDPI_IMAGES = YES;
 				DEFINES_MODULE = YES;
 				DYLIB_COMPATIBILITY_VERSION = 1;
-				DYLIB_CURRENT_VERSION = 256;
+				DYLIB_CURRENT_VERSION = 257;
 				DYLIB_INSTALL_NAME_BASE = "@rpath";
 				FRAMEWORK_SEARCH_PATHS = "$(PROJECT_DIR)/../Carthage/Build/Mac";
 				FRAMEWORK_VERSION = A;
@ -591,7 +579,7 @@
 				COMBINE_HIDPI_IMAGES = YES;
 				DEFINES_MODULE = YES;
 				DYLIB_COMPATIBILITY_VERSION = 1;
-				DYLIB_CURRENT_VERSION = 256;
+				DYLIB_CURRENT_VERSION = 257;
 				DYLIB_INSTALL_NAME_BASE = "@rpath";
 				FRAMEWORK_SEARCH_PATHS = "$(PROJECT_DIR)/../Carthage/Build/Mac";
 				FRAMEWORK_VERSION = A;
--- a/NvimView/NvimView/ColorUtils.swift
+++ b/NvimView/NvimView/ColorUtils.swift
@ -6,9 +6,21 @@
 import Cocoa

 private var colorCache = [Int: NSColor]()
+private var cgColorCache = [Int: CGColor]()

 class ColorUtils {

+  static func cgColorIgnoringAlpha(_ rgb: Int) -> CGColor {
+    if let color = cgColorCache[rgb] {
+      return color
+    }
+    
+    let color = self.colorIgnoringAlpha(rgb).cgColor
+    cgColorCache[rgb] = color
+
+    return color
+  }
+  
  static func colorIgnoringAlpha(_ rgb: Int) -> NSColor {
    if let color = colorCache[rgb] {
      return color
--- a/NvimView/NvimView/Info.plist
+++ b/NvimView/NvimView/Info.plist
@ -15,9 +15,9 @@
 	<key>CFBundlePackageType</key>
 	<string>FMWK</string>
 	<key>CFBundleShortVersionString</key>
-	<string>0.20.4-256</string>
+	<string>SNAPSHOT-257</string>
 	<key>CFBundleVersion</key>
-	<string>256</string>
+	<string>257</string>
 	<key>NSHumanReadableCopyright</key>
 	<string>Copyright © 2017 Tae Won Ha. All rights reserved.</string>
 	<key>NSPrincipalClass</key>
--- a/NvimView/NvimView/NvimAutoCommandEvent.generated.swift
+++ b/NvimView/NvimView/NvimAutoCommandEvent.generated.swift
@ -0,0 +1,96 @@
+
+enum NvimAutoCommandEvent: Int {
+  case bufadd = 0
+  case bufdelete = 1
+  case bufenter = 2
+  case buffilepost = 3
+  case buffilepre = 4
+  case bufhidden = 5
+  case bufleave = 6
+  case bufnew = 7
+  case bufnewfile = 8
+  case bufreadcmd = 9
+  case bufreadpost = 10
+  case bufreadpre = 11
+  case bufunload = 12
+  case bufwinenter = 13
+  case bufwinleave = 14
+  case bufwipeout = 15
+  case bufwritecmd = 16
+  case bufwritepost = 17
+  case bufwritepre = 18
+  case cmdundefined = 19
+  case cmdwinenter = 20
+  case cmdwinleave = 21
+  case colorscheme = 22
+  case completedone = 23
+  case cursorhold = 24
+  case cursorholdi = 25
+  case cursormoved = 26
+  case cursormovedi = 27
+  case dirchanged = 28
+  case encodingchanged = 29
+  case fileappendcmd = 30
+  case fileappendpost = 31
+  case fileappendpre = 32
+  case filechangedro = 33
+  case filechangedshell = 34
+  case filechangedshellpost = 35
+  case filereadcmd = 36
+  case filereadpost = 37
+  case filereadpre = 38
+  case filetype = 39
+  case filewritecmd = 40
+  case filewritepost = 41
+  case filewritepre = 42
+  case filterreadpost = 43
+  case filterreadpre = 44
+  case filterwritepost = 45
+  case filterwritepre = 46
+  case focusgained = 47
+  case focuslost = 48
+  case funcundefined = 49
+  case guienter = 50
+  case guifailed = 51
+  case insertchange = 52
+  case insertcharpre = 53
+  case insertenter = 54
+  case insertleave = 55
+  case jobactivity = 56
+  case menupopup = 57
+  case optionset = 58
+  case quickfixcmdpost = 59
+  case quickfixcmdpre = 60
+  case quitpre = 61
+  case remotereply = 62
+  case sessionloadpost = 63
+  case shellcmdpost = 64
+  case shellfilterpost = 65
+  case sourcecmd = 66
+  case sourcepre = 67
+  case spellfilemissing = 68
+  case stdinreadpost = 69
+  case stdinreadpre = 70
+  case swapexists = 71
+  case syntax = 72
+  case tabclosed = 73
+  case tabenter = 74
+  case tableave = 75
+  case tabnew = 76
+  case tabnewentered = 77
+  case termchanged = 78
+  case termclose = 79
+  case termopen = 80
+  case termresponse = 81
+  case textchanged = 82
+  case textchangedi = 83
+  case textyankpost = 84
+  case user = 85
+  case vimenter = 86
+  case vimleave = 87
+  case vimleavepre = 88
+  case vimresized = 89
+  case winnew = 90
+  case winenter = 91
+  case winleave = 92
+}
--- a/NvimView/NvimView/NvimUiBridgeProtocol.h
+++ b/NvimView/NvimView/NvimUiBridgeProtocol.h
@ -5,55 +5,10 @@

@import Foundation;

+#import "SharedTypes.h"
 #import "NvimAutoCommandEvent.generated.h"


-// Keep in sync with ModeShape enum in cursor_shape.h.
-typedef NS_ENUM(NSUInteger, CursorModeShape) {
-  CursorModeShapeNormal = 0,
-  CursorModeShapeVisual = 1,
-  CursorModeShapeInsert = 2,
-  CursorModeShapeReplace = 3,
-  CursorModeShapeCmdline = 4,
-  CursorModeShapeCmdlineInsert = 5,
-  CursorModeShapeCmdlineReplace = 6,
-  CursorModeShapeOperatorPending = 7,
-  CursorModeShapeVisualExclusive = 8,
-  CursorModeShapeOnCmdline = 9,
-  CursorModeShapeOnStatusLine = 10,
-  CursorModeShapeDraggingStatusLine = 11,
-  CursorModeShapeOnVerticalSepLine = 12,
-  CursorModeShapeDraggingVerticalSepLine = 13,
-  CursorModeShapeMore = 14,
-  CursorModeShapeMoreLastLine = 15,
-  CursorModeShapeShowingMatchingParen = 16,
-  CursorModeShapeTermFocus = 17,
-  CursorModeShapeCount = 18,
-};
-
-extern NSString * __nonnull cursorModeShapeName(CursorModeShape mode);
-
-typedef NS_ENUM(NSUInteger, FontTrait) {
-    FontTraitNone      = 0,
-    FontTraitItalic    = (1 << 0),
-    FontTraitBold      = (1 << 1),
-    FontTraitUnderline = (1 << 2),
-    FontTraitUndercurl = (1 << 3)
-};
-
-typedef struct {
-    FontTrait fontTrait;
-
-    NSInteger foreground;
-    NSInteger background;
-    NSInteger special;
-} CellAttributes;
-
-typedef struct {
-  NSInteger row;
-  NSInteger column;
-} Position;
-
 NS_ASSUME_NONNULL_BEGIN

@protocol NvimUiBridgeProtocol <NSObject>
@ -74,14 +29,6 @@ NS_ASSUME_NONNULL_BEGIN
 */
 - (void)eolClear;

-/**
- * Move the current cursor to (row, column). This can mean two things:
- * 1. NeoVim wants to put, ie draw, at (row, column) or
- * 2. NeoVim wants to put the cursor at (row, column).
- * In case of 1. NeoVim will put in subsequent call. In case of 2. NeoVim seems to flush twice in a row.
- */
- (void)gotoPosition:(Position)position textPosition:(Position)textPosition;
-
 - (void)updateMenu;
 - (void)busyStart;
 - (void)busyStop;
@ -95,19 +42,12 @@ NS_ASSUME_NONNULL_BEGIN

 - (void)setScrollRegionToTop:(NSInteger)top bottom:(NSInteger)bottom left:(NSInteger)left right:(NSInteger)right;
 - (void)scroll:(NSInteger)count;
- (void)highlightSet:(CellAttributes)attrs;

-/**
- * Draw string at the current cursor which was set by a previous cursorGotoRow:column callback.
- */
- (void)put:(NSString *)string;
-
- (void)putMarkedText:(NSString *)markedText;
 - (void)unmarkRow:(NSInteger)row column:(NSInteger)column;

 - (void)bell;
 - (void)visualBell;
- (void)flush;
+- (void)flush:(NSArray <NSData *> *)renderData;

 /**
 * Set the default foreground color.
--- a/NvimView/NvimView/NvimView+Api.swift
+++ b/NvimView/NvimView/NvimView+Api.swift
@ -215,18 +215,18 @@ extension NvimView {
  }

  public func didBecomeMain() {
-    self.uiClient.focusGained(true)
+    self.uiBridge.focusGained(true)
  }

  public func didResignMain() {
-    self.uiClient.focusGained(false)
+    self.uiBridge.focusGained(false)
  }

  func waitForNeoVimToQuit() {
-    self.uiClient.neoVimQuitCondition.lock()
-    defer { self.uiClient.neoVimQuitCondition.unlock() }
-    while self.uiClient.neoVimHasQuit == false
-          && self.uiClient.neoVimQuitCondition.wait(until: Date(timeIntervalSinceNow: neoVimQuitTimeout)) {}
+    self.uiBridge.nvimQuitCondition.lock()
+    defer { self.uiBridge.nvimQuitCondition.unlock() }
+    while self.uiBridge.isNvimQuit == false
+          && self.uiBridge.nvimQuitCondition.wait(until: Date(timeIntervalSinceNow: neoVimQuitTimeout)) {}
  }

  private func `open`(_ url: URL, cmd: String) {
--- a/NvimView/NvimView/NvimView+Draw.swift
+++ b/NvimView/NvimView/NvimView+Draw.swift
@ -39,6 +39,7 @@ extension NvimView {

    let dirtyRects = self.rectsBeingDrawn()

+    self.drawBaseBackground(rects: dirtyRects, in: context)
    self.rowRunIntersecting(rects: dirtyRects).forEach { self.draw(rowRun: $0, in: context) }
    self.drawCursor(context: context)
  }
@ -126,11 +127,23 @@ extension NvimView {
    self.shouldDrawCursor = false
  }

-  private func drawBackground(rowRun: RowRun, in context: CGContext) {
+  private func drawBaseBackground(rects: [CGRect], in context: CGContext) {
    context.saveGState()
    defer { context.restoreGState() }

-    context.setFillColor(ColorUtils.colorIgnoringAlpha(rowRun.attrs.background).cgColor)
+    context.setFillColor(ColorUtils.cgColorIgnoringAlpha(self.grid.background))
+    context.fill(rects)
+  }
+
+  private func drawBackground(rowRun: RowRun, in context: CGContext) {
+    if rowRun.attrs.background == self.grid.background {
+      return
+    }
+
+    context.saveGState()
+    defer { context.restoreGState() }
+
+    context.setFillColor(ColorUtils.cgColorIgnoringAlpha(rowRun.attrs.background))
    // To use random color use the following
 //    NSColor(calibratedRed: CGFloat(drand48()),
 //            green: CGFloat(drand48()),
--- a/NvimView/NvimView/NvimView+Key.swift
+++ b/NvimView/NvimView/NvimView+Key.swift
@ -38,7 +38,7 @@ extension NvimView {
        ? self.wrapNamedKeys(flags + namedChars)
        : self.vimPlainString(chars)

-    self.uiClient.vimInput(finalInput)
+    self.uiBridge.vimInput(finalInput)
    self.keyDownDone = true
  }

@ -47,9 +47,9 @@ extension NvimView {

    switch aString {
    case let string as String:
-      self.uiClient.vimInput(self.vimPlainString(string))
+      self.uiBridge.vimInput(self.vimPlainString(string))
    case let attributedString as NSAttributedString:
-      self.uiClient.vimInput(self.vimPlainString(attributedString.string))
+      self.uiBridge.vimInput(self.vimPlainString(attributedString.string))
    default:
      break;
    }
@ -98,7 +98,7 @@ extension NvimView {
    // Control code \0 causes rpc parsing problems.
    // So we escape as early as possible
    if chars == "\0" {
-      self.uiClient.vimInput(self.wrapNamedKeys("Nul"))
+      self.uiBridge.vimInput(self.wrapNamedKeys("Nul"))
      return true
    }

@ -106,12 +106,12 @@ extension NvimView {
    // See special cases in vim/os_win32.c from vim sources
    // Also mentioned in MacVim's KeyBindings.plist
    if .control == flags && chars == "6" {
-      self.uiClient.vimInput("\u{1e}") // AKA ^^
+      self.uiBridge.vimInput("\u{1e}") // AKA ^^
      return true
    }
    if .control == flags && chars == "2" {
      // <C-2> should generate \0, escaping as above
-      self.uiClient.vimInput(self.wrapNamedKeys("Nul"))
+      self.uiBridge.vimInput(self.wrapNamedKeys("Nul"))
      return true
    }
    // NsEvent already sets \u{1f} for <C--> && <C-_>
@ -126,7 +126,7 @@ extension NvimView {

    // eg 하 -> hanja popup, cf comment for self.lastMarkedText
    if replacementRange.length > 0 {
-      self.uiClient.deleteCharacters(replacementRange.length)
+      self.uiBridge.deleteCharacters(replacementRange.length)
    }

    switch aString {
@ -140,7 +140,7 @@ extension NvimView {

 //    self.logger.debug("\(#function): \(self.markedText), \(selectedRange), \(replacementRange)")

-    self.uiClient.vimInputMarkedText(self.markedText!)
+    self.uiBridge.vimInputMarkedText(self.markedText!)
    self.keyDownDone = true
  }

--- a/NvimView/NvimView/NvimView+MenuItems.swift
+++ b/NvimView/NvimView/NvimView+MenuItems.swift
@ -48,9 +48,9 @@ extension NvimView {
  @IBAction func undo(_ sender: AnyObject?) {
    switch self.mode {
    case .insert, .replace:
-      self.uiClient.vimInput("<Esc>ui")
+      self.uiBridge.vimInput("<Esc>ui")
    case .normal, .visual:
-      self.uiClient.vimInput("u")
+      self.uiBridge.vimInput("u")
    default:
      return
    }
@ -59,9 +59,9 @@ extension NvimView {
  @IBAction func redo(_ sender: AnyObject?) {
    switch self.mode {
    case .insert, .replace:
-      self.uiClient.vimInput("<Esc><C-r>i")
+      self.uiBridge.vimInput("<Esc><C-r>i")
    case .normal, .visual:
-      self.uiClient.vimInput("<C-r>")
+      self.uiBridge.vimInput("<C-r>")
    default:
      return
    }
@ -70,7 +70,7 @@ extension NvimView {
  @IBAction func cut(_ sender: AnyObject?) {
    switch self.mode {
    case .visual, .normal:
-      self.uiClient.vimInput("\"+d")
+      self.uiBridge.vimInput("\"+d")
    default:
      return
    }
@ -79,7 +79,7 @@ extension NvimView {
  @IBAction func copy(_ sender: AnyObject?) {
    switch self.mode {
    case .visual, .normal:
-      self.uiClient.vimInput("\"+y")
+      self.uiBridge.vimInput("\"+y")
    default:
      return
    }
@ -93,7 +93,7 @@ extension NvimView {
    if self.mode == .cmdline || self.mode == .cmdlineInsert || self.mode == .cmdlineReplace
       || self.mode == .replace
       || self.mode == .termFocus {
-      self.uiClient.vimInput(self.vimPlainString(content))
+      self.uiBridge.vimInput(self.vimPlainString(content))
      return
    }

@ -113,9 +113,9 @@ extension NvimView {

    switch self.mode {
    case .insert:
-      self.uiClient.vimInput("<ESC>\"+pa")
+      self.uiBridge.vimInput("<ESC>\"+pa")
    case .normal, .visual:
-      self.uiClient.vimInput("\"+p")
+      self.uiBridge.vimInput("\"+p")
    default:
      return
    }
@ -128,7 +128,7 @@ extension NvimView {
  @IBAction func delete(_ sender: AnyObject?) {
    switch self.mode {
    case .normal, .visual:
-      self.uiClient.vimInput("x")
+      self.uiBridge.vimInput("x")
    default:
      return
    }
@ -137,9 +137,9 @@ extension NvimView {
  @IBAction public override func selectAll(_ sender: Any?) {
    switch self.mode {
    case .insert, .visual:
-      self.uiClient.vimInput("<Esc>ggVG")
+      self.uiBridge.vimInput("<Esc>ggVG")
    default:
-      self.uiClient.vimInput("ggVG")
+      self.uiBridge.vimInput("ggVG")
    }
  }
 }
--- a/NvimView/NvimView/NvimView+Mouse.swift
+++ b/NvimView/NvimView/NvimView+Mouse.swift
@ -32,15 +32,15 @@ extension NvimView {
      let (vimInputX, vimInputY) = self.vimScrollInputFor(deltaX: deltaX, deltaY: deltaY,
                                                          modifierFlags: event.modifierFlags,
                                                          cellPosition: cellPosition)
-      self.uiClient.vimInput(vimInputX)
-      self.uiClient.vimInput(vimInputY)
+      self.uiBridge.vimInput(vimInputX)
+      self.uiBridge.vimInput(vimInputY)
      return
    }

    let (absDeltaX, absDeltaY) = (min(Int(ceil(abs(deltaX) / 5.0)), maxScrollDeltaX),
                                  min(Int(ceil(abs(deltaY) / 5.0)), maxScrollDeltaY))
    let (horizSign, vertSign) = (deltaX > 0 ? 1 : -1, deltaY > 0 ? 1 : -1)
-    self.uiClient.scrollHorizontal(horizSign * absDeltaX, vertical: vertSign * absDeltaY, at: cellPosition)
+    self.uiBridge.scroll(horizontal: horizSign * absDeltaX, vertical: vertSign * absDeltaY, at: cellPosition)
  }

  override public func magnify(with event: NSEvent) {
@ -97,7 +97,7 @@ extension NvimView {
    }

 //    self.logger.debug("\(#function): \(result)")
-    self.uiClient.vimInput(result)
+    self.uiBridge.vimInput(result)
  }

  private func shouldFireVimInputFor(event: NSEvent, newCellPosition: Position) -> Bool {
--- a/NvimView/NvimView/NvimView+Resize.swift
+++ b/NvimView/NvimView/NvimView+Resize.swift
@ -51,12 +51,12 @@ extension NvimView {
    self.xOffset = floor((size.width - self.cellSize.width * CGFloat(discreteSize.width)) / 2)
    self.yOffset = floor((size.height - self.cellSize.height * CGFloat(discreteSize.height)) / 2)

-    self.uiClient.resize(toWidth: Int32(discreteSize.width), height: Int32(discreteSize.height))
+    self.uiBridge.resize(width: discreteSize.width, height: discreteSize.height)
  }

  private func launchNeoVim(_ size: Size) {
    self.logger.info("=== Starting neovim...")
-    let noErrorDuringInitialization = self.uiClient.runLocalServerAndNeoVim(withWidth: size.width, height: size.height)
+    let noErrorDuringInitialization = self.uiBridge.runLocalServerAndNvim(width: size.width, height: size.height)

    do {
      try self.nvim.connect()
--- a/NvimView/NvimView/NvimView+UiBridge.swift
+++ b/NvimView/NvimView/NvimView+UiBridge.swift
@ -9,7 +9,7 @@ import RxSwift

 extension NvimView {

-  public func resize(toWidth width: Int, height: Int) {
+  func resize(width width: Int, height: Int) {
    gui.async {
      self.bridgeLogger.debug("\(width) x \(height)")

@ -18,7 +18,7 @@ extension NvimView {
    }
  }

-  public func clear() {
+  func clear() {
    gui.async {
      self.bridgeLogger.mark()

@ -27,7 +27,7 @@ extension NvimView {
    }
  }

-  public func eolClear() {
+  func eolClear() {
    gui.async {
      self.bridgeLogger.mark()

@ -42,25 +42,14 @@ extension NvimView {
    }
  }

-  public func gotoPosition(_ position: Position, textPosition: Position) {
+  func modeChange(_ mode: CursorModeShape) {
    gui.async {
-      self.bridgeLogger.debug(position)
-
-      self.markForRender(cellPosition: self.grid.position)
-      self.grid.goto(position)
-
-      self.eventsSubject.onNext(.cursor(textPosition))
-    }
-  }
-
-  public func modeChange(_ mode: CursorModeShape) {
-    gui.async {
-      self.bridgeLogger.debug(cursorModeShapeName(mode))
+      self.bridgeLogger.debug(name(of: mode))
      self.mode = mode
    }
  }

-  public func setScrollRegionToTop(_ top: Int, bottom: Int, left: Int, right: Int) {
+  func setScrollRegion(top: Int, bottom: Int, left: Int, right: Int) {
    gui.async {
      self.bridgeLogger.debug("\(top):\(bottom):\(left):\(right)")

@ -69,7 +58,7 @@ extension NvimView {
    }
  }

-  public func scroll(_ count: Int) {
+  func scroll(_ count: Int) {
    gui.async {
      self.bridgeLogger.debug(count)

@ -81,50 +70,7 @@ extension NvimView {
    }
  }

-  public func highlightSet(_ attrs: CellAttributes) {
-    gui.async {
-      self.bridgeLogger.debug(attrs)
-
-      self.grid.attrs = attrs
-    }
-  }
-
-  public func put(_ string: String) {
-    gui.async {
-      let curPos = self.grid.position
-//      self.bridgeLogger.debug("\(curPos) -> \(string)")
-
-      self.grid.put(string.precomposedStringWithCanonicalMapping)
-
-      if self.usesLigatures {
-        if string == " " {
-          self.markForRender(cellPosition: curPos)
-        } else {
-          self.markForRender(region: self.grid.regionOfWord(at: curPos))
-        }
-      } else {
-        self.markForRender(cellPosition: curPos)
-      }
-    }
-  }
-
-  public func putMarkedText(_ markedText: String) {
-    gui.async {
-      let curPos = self.grid.position
-//      self.bridgeLogger.debug("\(curPos) -> '\(markedText)'")
-
-      self.grid.putMarkedText(markedText)
-
-      self.markForRender(position: curPos)
-      // When the cursor is in the command line, then we need this...
-      self.markForRender(cellPosition: self.grid.nextCellPosition(curPos))
-      if markedText.count == 0 {
-        self.markForRender(position: self.grid.previousCellPosition(curPos))
-      }
-    }
-  }
-
-  public func unmarkRow(_ row: Int, column: Int) {
+  func unmark(row: Int, column: Int) {
    gui.async {
      self.bridgeLogger.debug("\(row):\(column)")

@ -135,10 +81,49 @@ extension NvimView {
    }
  }

-  public func flush() {
+  func flush(_ renderData: [Data]) {
    gui.async {
      self.bridgeLogger.hr()

+      renderData.forEach { data in
+        data.withUnsafeBytes { (pointer: UnsafePointer<RenderDataType>) in
+          let sizeOfType = MemoryLayout<RenderDataType>.size
+          let rawPointer = UnsafeRawPointer(pointer).advanced(by: sizeOfType);
+          let renderType = pointer[0]
+
+          switch renderType {
+
+          case .put:
+            guard let str = String(data: Data(bytes: rawPointer, count: data.count - sizeOfType),
+                                   encoding: .utf8)
+              else {
+              break
+            }
+
+            self.doPut(string: str)
+
+          case .putMarked:
+            guard let str = String(data: Data(bytes: rawPointer, count: data.count - sizeOfType),
+                                   encoding: .utf8)
+              else {
+              break
+            }
+
+            self.doPut(markedText: str)
+
+          case .highlight:
+            let attr = rawPointer.load(as: CellAttributes.self)
+            self.doHighlightSet(attr)
+
+          case .goto:
+            let values = rawPointer.bindMemory(to: Int.self, capacity: 4)
+            self.doGoto(position: Position(row: values[0], column: values[1]),
+                        textPosition: Position(row: values[2], column: values[3]))
+
+          }
+        }
+      }
+
      self.shouldDrawCursor = true

      if self.usesLigatures {
@ -149,14 +134,14 @@ extension NvimView {
    }
  }

-  public func updateForeground(_ fg: Int) {
+  func update(foreground fg: Int) {
    gui.async {
      self.bridgeLogger.debug(ColorUtils.colorIgnoringAlpha(fg))
      self.grid.foreground = fg
    }
  }

-  public func updateBackground(_ bg: Int) {
+  func update(background bg: Int) {
    gui.async {
      self.bridgeLogger.debug(ColorUtils.colorIgnoringAlpha(bg))

@ -165,23 +150,23 @@ extension NvimView {
    }
  }

-  public func updateSpecial(_ sp: Int) {
+  func update(special sp: Int) {
    gui.async {
      self.bridgeLogger.debug(ColorUtils.colorIgnoringAlpha(sp))
      self.grid.special = sp
    }
  }

-  public func setTitle(_ title: String) {
+  func set(title: String) {
    self.bridgeLogger.debug(title)

    self.eventsSubject.onNext(.setTitle(title))
  }

-  public func stop() {
+  func stop() {
    self.bridgeLogger.hr()
    self.nvim.disconnect()
-    self.uiClient.quit()
+    self.uiBridge.quit()

    gui.async {
      self.waitForNeoVimToQuit()
@ -190,31 +175,31 @@ extension NvimView {
    }
  }

-  public func autoCommandEvent(_ event: NvimAutoCommandEvent, bufferHandle: Int) {
-    self.bridgeLogger.debug("\(nvimAutoCommandEventName(event)) -> \(bufferHandle)")
+  func autoCommandEvent(_ event: NvimAutoCommandEvent, bufferHandle: Int) {
+    self.bridgeLogger.debug("\(event) -> \(bufferHandle)")

-    if event == .BUFWINENTER || event == .BUFWINLEAVE {
+    if event == .bufwinenter || event == .bufwinleave {
      self.bufferListChanged()
    }

-    if event == .TABENTER {
+    if event == .tabenter {
      self.eventsSubject.onNext(.tabChanged)
    }

-    if event == .BUFWRITEPOST {
+    if event == .bufwritepost {
      self.bufferWritten(bufferHandle)
    }

-    if event == .BUFENTER {
+    if event == .bufenter {
      self.newCurrentBuffer(bufferHandle)
    }
  }

-  public func ipcBecameInvalid(_ reason: String) {
+  func ipcBecameInvalid(_ reason: String) {
    gui.async {
      self.bridgeLogger.debug(reason)

-      if self.uiClient.neoVimIsQuitting || self.uiClient.neoVimHasQuit {
+      if self.uiBridge.isNvimQuitting == 1 || self.uiBridge.isNvimQuit {
        return
      }

@ -223,29 +208,74 @@ extension NvimView {

      self.bridgeLogger.error("Force-closing due to IPC error.")
      self.nvim.disconnect()
-      self.uiClient.forceQuit()
+      self.uiBridge.forceQuit()
    }
  }
+
+  private func doPut(string: String) {
+    let curPos = self.grid.position
+//      self.bridgeLogger.debug("\(curPos) -> \(string)")
+
+    self.grid.put(string.precomposedStringWithCanonicalMapping)
+
+    if self.usesLigatures {
+      if string == " " {
+        self.markForRender(cellPosition: curPos)
+      } else {
+        self.markForRender(region: self.grid.regionOfWord(at: curPos))
+      }
+    } else {
+      self.markForRender(cellPosition: curPos)
+    }
+  }
+
+  private func doPut(markedText: String) {
+    let curPos = self.grid.position
+//      self.bridgeLogger.debug("\(curPos) -> '\(markedText)'")
+
+    self.grid.putMarkedText(markedText)
+
+    self.markForRender(position: curPos)
+    // When the cursor is in the command line, then we need this...
+    self.markForRender(cellPosition: self.grid.nextCellPosition(curPos))
+    if markedText.count == 0 {
+      self.markForRender(position: self.grid.previousCellPosition(curPos))
+    }
+  }
+
+  private func doHighlightSet(_ attrs: CellAttributes) {
+//    self.bridgeLogger.debug(attrs)
+    self.grid.attrs = attrs
+  }
+
+  private func doGoto(position: Position, textPosition: Position) {
+//    self.bridgeLogger.debug(position)
+
+    self.markForRender(cellPosition: self.grid.position)
+    self.grid.goto(position)
+
+    self.eventsSubject.onNext(.cursor(textPosition))
+  }
 }

 // MARK: - Simple
 extension NvimView {

-  public func bell() {
+  func bell() {
    self.bridgeLogger.mark()

    NSSound.beep()
  }

-  public func cwdChanged(_ cwd: String) {
+  func cwdChanged(_ cwd: String) {
    self.bridgeLogger.debug(cwd)

    self._cwd = URL(fileURLWithPath: cwd)
    self.eventsSubject.onNext(.cwdChanged)
  }
-  public func colorSchemeChanged(_ values: [NSNumber]) {
+  func colorSchemeChanged(_ values: [Int]) {
    gui.async {
-      let theme = Theme(values.map { $0.intValue })
+      let theme = Theme(values)
      self.bridgeLogger.debug(theme)

      self.theme = theme
@ -253,41 +283,41 @@ extension NvimView {
    }
  }

-  public func setDirtyStatus(_ dirty: Bool) {
+  func set(dirty: Bool) {
    self.bridgeLogger.debug(dirty)

    self.eventsSubject.onNext(.setDirtyStatus(dirty))
  }

-  public func updateMenu() {
+  func updateMenu() {
    self.bridgeLogger.mark()
  }

-  public func busyStart() {
+  func busyStart() {
    self.bridgeLogger.mark()
  }

-  public func busyStop() {
+  func busyStop() {
    self.bridgeLogger.mark()
  }

-  public func mouseOn() {
+  func mouseOn() {
    self.bridgeLogger.mark()
  }

-  public func mouseOff() {
+  func mouseOff() {
    self.bridgeLogger.mark()
  }

-  public func visualBell() {
+  func visualBell() {
    self.bridgeLogger.mark()
  }

-  public func suspend() {
+  func suspend() {
    self.bridgeLogger.mark()
  }

-  public func setIcon(_ icon: String) {
+  func set(icon: String) {
    self.bridgeLogger.debug(icon)
  }
 }
@ -371,3 +401,29 @@ extension NvimView {
 }

 private let gui = DispatchQueue.main
+
+private func name(of mode: CursorModeShape) -> String {
+  switch mode {
+    // @formatter:off
+    case .normal:                  return "Normal"
+    case .visual:                  return "Visual"
+    case .insert:                  return "Insert"
+    case .replace:                 return "Replace"
+    case .cmdline:                 return "Cmdline"
+    case .cmdlineInsert:           return "CmdlineInsert"
+    case .cmdlineReplace:          return "CmdlineReplace"
+    case .operatorPending:         return "OperatorPending"
+    case .visualExclusive:         return "VisualExclusive"
+    case .onCmdline:               return "OnCmdline"
+    case .onStatusLine:            return "OnStatusLine"
+    case .draggingStatusLine:      return "DraggingStatusLine"
+    case .onVerticalSepLine:       return "OnVerticalSepLine"
+    case .draggingVerticalSepLine: return "DraggingVerticalSepLine"
+    case .more:                    return "More"
+    case .moreLastLine:            return "MoreLastLine"
+    case .showingMatchingParen:    return "ShowingMatchingParen"
+    case .termFocus:               return "TermFocus"
+    case .count:                   return "Count"
+    // @formatter:on
+  }
+}
--- a/NvimView/NvimView/NvimView.h
+++ b/NvimView/NvimView/NvimView.h
@ -1,10 +1,7 @@
-//
-//  NvimView.h
-//  NvimView
-//
-//  Created by hat on 02.12.17.
-//  Copyright © 2017 Tae Won Ha. All rights reserved.
-//
+/**
+ * Tae Won Ha - http://taewon.de - @hataewon
+ * See LICENSE
+ */

 #import <Cocoa/Cocoa.h>

@ -16,8 +13,7 @@ FOUNDATION_EXPORT const unsigned char NvimViewVersionString[];

 // In this header, you should import all the public headers of your framework using statements like #import <NvimView/PublicHeader.h>

-#import <NvimView/NvimUiBridgeProtocol.h>
 // TODO: this header should not be public, but we cannot use a bridging header in a framework.
 #import <NvimView/TextDrawer.h>
-#import <NvimView/UiClient.h>
-#import <NvimView/NvimAutoCommandEvent.generated.h>
+#import <NvimView/SharedTypes.h>
+#import <NvimView/ThreadWithBlock.h>
--- a/NvimView/NvimView/NvimView.swift
+++ b/NvimView/NvimView/NvimView.swift
@ -8,7 +8,6 @@ import NvimMsgPack
 import RxSwift

 public class NvimView: NSView,
-                       NvimUiBridgeProtocol,
                       NSUserInterfaceValidations,
                       NSTextInputClient {

@ -175,7 +174,7 @@ public class NvimView: NSView,

  public init(frame rect: NSRect, config: Config) {
    self.drawer = TextDrawer(font: self._font)
-    self.uiClient = UiClient(uuid: self.uuid)
+    self.uiBridge = UiBridge(uuid: self.uuid)

    let sockPath = URL(fileURLWithPath: NSTemporaryDirectory()).appendingPathComponent("vimr_\(self.uuid).sock").path
    guard let nvim = NvimApi(at: sockPath) else {
@ -193,10 +192,10 @@ public class NvimView: NSView,
    self.leading = self.drawer.leading

    // We cannot set bridge in init since self is not available before super.init()...
-    self.uiClient.bridge = self
-    self.uiClient.useInteractiveZsh = config.useInteractiveZsh
-    self.uiClient.cwd = config.cwd
-    self.uiClient.nvimArgs = config.nvimArgs
+    self.uiBridge.nvimView = self
+    self.uiBridge.useInteractiveZsh = config.useInteractiveZsh
+    self.uiBridge.cwd = config.cwd
+    self.uiBridge.nvimArgs = config.nvimArgs ?? []
  }

  convenience override public init(frame rect: NSRect) {
@ -209,7 +208,7 @@ public class NvimView: NSView,

  @IBAction public func debug1(_ sender: Any?) {
    self.logger.debug("DEBUG 1 - Start")
-    self.uiClient.debug()
+    self.uiBridge.debug()
    self.logger.debug("DEBUG 1 - End")
  }

@ -230,7 +229,7 @@ public class NvimView: NSView,
  let bridgeLogger = LogContext.fileLogger(as: NvimView.self,
                                           with: URL(fileURLWithPath: "/tmp/nvv-bridge.log"),
                                           shouldLogDebug: nil)
-  let uiClient: UiClient
+  let uiBridge: UiBridge
  let nvim: NvimApi
  let grid = Grid()

--- a/NvimView/NvimView/TextDrawer.h
+++ b/NvimView/NvimView/TextDrawer.h
@ -6,7 +6,9 @@
@import Cocoa;
@import CoreText;

-#import "NvimUiBridgeProtocol.h"
+
+#import "SharedTypes.h"
+

@interface TextDrawer : NSObject

--- a/NvimView/NvimView/ThreadWithBlock.h
+++ b/NvimView/NvimView/ThreadWithBlock.h
@ -0,0 +1,14 @@
+/**
+ * Tae Won Ha - http://taewon.de - @hataewon
+ * See LICENSE
+ */
+
+#import <Foundation/Foundation.h>
+
+typedef void (^ThreadInitBlock)(id);
+
+@interface ThreadWithBlock : NSThread
+
+- (instancetype)initWithThreadInitBlock:(ThreadInitBlock)block;
+
+@end
--- a/NvimView/NvimView/ThreadWithBlock.m
+++ b/NvimView/NvimView/ThreadWithBlock.m
@ -0,0 +1,48 @@
+/**
+ * Tae Won Ha - http://taewon.de - @hataewon
+ * See LICENSE
+ */
+
+#import "ThreadWithBlock.h"
+
+@interface BlockHolder: NSObject
+
+- (instancetype)initWithBlock:(ThreadInitBlock)block;
+- (void)blockInit:(id)sender;
+
+@end
+
+@implementation BlockHolder {
+  ThreadInitBlock _block;
+}
+
+- (instancetype)initWithBlock:(ThreadInitBlock)block {
+  self = [super init];
+  if (self == nil) {
+    return nil;
+  }
+
+  _block = block;
+  return self;
+}
+
+- (void)blockInit:(id)sender {
+  _block(sender);
+}
+
+@end
+
+
+@implementation ThreadWithBlock
+
+- (instancetype)initWithThreadInitBlock:(ThreadInitBlock)block {
+  BlockHolder *blockHolder = [[BlockHolder alloc] initWithBlock:block];
+  self = [super initWithTarget:blockHolder selector:@selector(blockInit:) object:nil];
+  if (self == nil) {
+    return nil;
+  }
+
+  return self;
+}
+
+@end
--- a/NvimView/NvimView/UiBridge.swift
+++ b/NvimView/NvimView/UiBridge.swift
@ -0,0 +1,510 @@
+/**
+ * Tae Won Ha - http://taewon.de - @hataewon
+ * See LICENSE
+ */
+
+import Foundation
+
+class UiBridge {
+
+  weak var nvimView: NvimView?
+
+  var isNvimQuitting = UInt32(0)
+  var isNvimQuit = false
+  let nvimQuitCondition = NSCondition()
+
+  var useInteractiveZsh = false
+
+  var cwd = URL(fileURLWithPath: NSHomeDirectory())
+  var nvimArgs = [String]()
+
+  init(uuid: String) {
+    self.uuid = uuid
+    self.messageHandler = MessageHandler()
+
+    self.messageHandler.bridge = self
+  }
+
+  func runLocalServerAndNvim(width: Int, height: Int) -> Bool {
+    self.initialWidth = width
+    self.initialHeight = height
+
+    self.localServerThread = ThreadWithBlock(threadInitBlock: { _ in self.runLocalServer() })
+    self.localServerThread?.start()
+
+    self.launchNvimUsingLoginShell()
+
+    let deadline = Date().addingTimeInterval(timeout)
+    self.nvimReadyCondition.lock()
+    defer { self.nvimReadyCondition.unlock() }
+    while (!self.isNvimReady && self.nvimReadyCondition.wait(until: deadline)) {}
+
+    return !self.isInitErrorPresent
+  }
+
+  func vimInput(_ str: String) {
+    self.sendMessage(msgId: .input, data: str.data(using: .utf8))
+  }
+
+  func vimInputMarkedText(_ markedText: String) {
+    self.sendMessage(msgId: .inputMarked, data: markedText.data(using: .utf8))
+  }
+
+  func deleteCharacters(_ count: Int) {
+    self.sendMessage(msgId: .delete, data: [count].data())
+  }
+
+  func resize(width: Int, height: Int) {
+    self.sendMessage(msgId: .resize, data: [width, height].data())
+  }
+
+  func focusGained(_ gained: Bool) {
+    self.sendMessage(msgId: .focusGained, data: [gained].data())
+  }
+
+  func scroll(horizontal: Int, vertical: Int, at position: Position) {
+    self.sendMessage(msgId: .scroll, data: [horizontal, vertical, position.row, position.column].data())
+  }
+
+  func quit() {
+    OSAtomicOr32Barrier(1, &self.isNvimQuitting)
+
+    self.closePorts()
+
+    self.nvimServerProc?.waitUntilExit()
+
+    self.nvimQuitCondition.lock()
+    defer {
+      self.nvimQuitCondition.signal()
+      self.nvimQuitCondition.unlock()
+    }
+    self.isNvimQuit = true
+
+    self.logger.info("NvimServer \(self.uuid) exited successfully.")
+  }
+
+  func forceQuit() {
+    self.logger.info("Force-exiting NvimServer \(self.uuid).")
+
+    OSAtomicOr32Barrier(1, &self.isNvimQuitting)
+
+    self.closePorts()
+    self.forceExitNvimServer()
+
+    self.nvimQuitCondition.lock()
+    defer {
+      self.nvimQuitCondition.signal()
+      self.nvimQuitCondition.unlock()
+    }
+    self.isNvimQuit = true
+
+    self.logger.info("NvimServer \(self.uuid) was forcefully exited.")
+  }
+
+  func debug() {
+    self.sendMessage(msgId: .debug1, data: nil)
+  }
+
+  fileprivate func handleMessage(msgId: Int32, data: Data?) {
+    guard let msg = NeoVimServerMsgId(rawValue: Int(msgId)) else {
+      return
+    }
+
+    switch msg {
+
+    case .serverReady:
+      self.establishNvimConnection()
+
+    case .neoVimReady:
+      self.isInitErrorPresent = data?.asArray(ofType: Bool.self, count: 1)?[0] ?? false
+      self.nvimReadyCondition.lock()
+      self.isNvimReady = true
+      defer {
+        self.nvimReadyCondition.signal()
+        self.nvimReadyCondition.unlock()
+      }
+
+    case .resize:
+      guard let values = data?.asArray(ofType: Int.self, count: 2) else {
+        return
+      }
+
+      self.nvimView?.resize(width: values[0], height: values[1])
+
+
+    case .clear:
+      self.nvimView?.clear()
+
+    case .eolClear:
+      self.nvimView?.eolClear()
+
+    case .setMenu:
+      self.nvimView?.updateMenu()
+
+    case .busyStart:
+      self.nvimView?.busyStart()
+
+    case .busyStop:
+      self.nvimView?.busyStop()
+
+    case .mouseOn:
+      self.nvimView?.mouseOn()
+
+    case .mouseOff:
+      self.nvimView?.mouseOff()
+
+    case .modeChange:
+      guard let values = data?.asArray(ofType: CursorModeShape.self, count: 1) else {
+        return
+      }
+
+      self.nvimView?.modeChange(values[0])
+
+    case .setScrollRegion:
+      guard let values = data?.asArray(ofType: Int.self, count: 4) else {
+        return
+      }
+
+      self.nvimView?.setScrollRegion(top: values[0], bottom: values[1], left: values[2], right: values[3])
+
+    case .scroll:
+      guard let values = data?.asArray(ofType: Int.self, count: 1) else {
+        return
+      }
+
+      self.nvimView?.scroll(values[0])
+
+    case .unmark:
+      guard let values = data?.asArray(ofType: Int.self, count: 2) else {
+        return
+      }
+
+      self.nvimView?.unmark(row: values[0], column: values[1])
+
+    case .bell:
+      self.nvimView?.bell()
+
+    case .visualBell:
+      self.nvimView?.visualBell()
+
+    case .flush:
+      guard let d = data, let renderData = NSKeyedUnarchiver.unarchiveObject(with: d) as? [Data] else {
+        return
+      }
+
+      self.nvimView?.flush(renderData)
+
+    case .setForeground:
+      guard let values = data?.asArray(ofType: Int.self, count: 1) else {
+        return
+      }
+
+      self.nvimView?.update(foreground: values[0])
+
+    case .setBackground:
+      guard let values = data?.asArray(ofType: Int.self, count: 1) else {
+        return
+      }
+
+      self.nvimView?.update(background: values[0])
+
+    case .setSpecial:
+      guard let values = data?.asArray(ofType: Int.self, count: 1) else {
+        return
+      }
+
+      self.nvimView?.update(special: values[0])
+
+    case .setTitle:
+      guard let d = data, let title = String(data: d, encoding: .utf8) else {
+        return
+      }
+
+      self.nvimView?.set(title: title)
+
+    case .setIcon:
+      guard let d = data, let icon = String(data: d, encoding: .utf8) else {
+        return
+      }
+
+      self.nvimView?.set(icon: icon)
+
+    case .stop:
+      self.nvimView?.stop()
+
+    case .dirtyStatusChanged:
+      guard let values = data?.asArray(ofType: Bool.self, count: 1) else {
+        return
+      }
+
+      self.nvimView?.set(dirty: values[0])
+
+    case .cwdChanged:
+      guard let d = data, let cwd = String(data: d, encoding: .utf8) else {
+        return
+      }
+
+      self.nvimView?.cwdChanged(cwd)
+
+
+    case .colorSchemeChanged:
+      guard let values = data?.asArray(ofType: Int.self, count: 5) else {
+        return
+      }
+
+      self.nvimView?.colorSchemeChanged(values)
+
+    case .autoCommandEvent:
+      if data?.count == 2 * MemoryLayout<Int>.stride {
+        guard let values = data?.asArray(ofType: Int.self, count: 2),
+              let cmd = NvimAutoCommandEvent(rawValue: values[0])
+          else {
+          return
+        }
+
+        self.nvimView?.autoCommandEvent(cmd, bufferHandle: values[1])
+
+      } else {
+        guard let values = data?.asArray(ofType: NvimAutoCommandEvent.self, count: 1) else {
+          return
+        }
+
+        self.nvimView?.autoCommandEvent(values[0], bufferHandle: -1)
+      }
+
+    case .debug1:
+      break
+
+    }
+
+    return
+  }
+
+  private func closePorts() {
+    CFRunLoopStop(self.localServerRunLoop)
+    self.localServerThread?.cancel()
+
+    if CFMessagePortIsValid(self.remoteServerPort) {
+      CFMessagePortInvalidate(self.remoteServerPort)
+    }
+    self.remoteServerPort = nil
+
+    if CFMessagePortIsValid(self.localServerPort) {
+      CFMessagePortInvalidate(self.localServerPort)
+    }
+    self.localServerPort = nil
+  }
+
+  private func establishNvimConnection() {
+    self.remoteServerPort = CFMessagePortCreateRemote(kCFAllocatorDefault, self.remoteServerName.CFStr)
+    self.sendMessage(msgId: .agentReady, data: [self.initialWidth, self.initialHeight].data())
+  }
+
+  /// Does not wait for reply.
+  private func sendMessage(msgId: NeoVimAgentMsgId, data: Data?) {
+    if self.isNvimQuitting == 1 {
+      self.logger.info("NvimServer is quitting, but trying to send msg: \(msgId).")
+      return
+    }
+
+    if self.remoteServerPort == nil {
+      self.logger.info("Remote server port is nil, but trying to send msg: \(msgId).")
+      return
+    }
+
+    let responseCode = CFMessagePortSendRequest(self.remoteServerPort,
+                                                Int32(msgId.rawValue),
+                                                data as NSData?,
+                                                timeout,
+                                                timeout,
+                                                nil,
+                                                nil)
+
+    if self.isNvimQuitting == 1 {
+      return
+    }
+
+    if responseCode != kCFMessagePortSuccess {
+      let msg = "Remote server responded with \(name(of: responseCode)) for msg \(msgId)."
+
+      self.logger.error(msg)
+      if self.isNvimQuitting == 0 {
+        self.nvimView?.ipcBecameInvalid(msg)
+      }
+    }
+  }
+
+  private func forceExitNvimServer() {
+    self.nvimServerProc?.interrupt()
+    self.nvimServerProc?.terminate()
+  }
+
+  private func launchNvimUsingLoginShell() {
+    let selfEnv = ProcessInfo.processInfo.environment
+
+    let shellPath = URL(fileURLWithPath: selfEnv["SHELL"] ?? "/bin/bash")
+    let shellName = shellPath.lastPathComponent
+    var shellArgs = [String]()
+    if shellName != "tcsh" {
+      // tcsh does not like the -l option
+      shellArgs.append("-l")
+    }
+    if self.useInteractiveZsh && shellName == "zsh" {
+      shellArgs.append("-i")
+    }
+
+    let inputPipe = Pipe()
+    self.nvimServerProc = Process()
+
+    let listenAddress = URL(fileURLWithPath: NSTemporaryDirectory()).appendingPathComponent("vimr_\(self.uuid).sock")
+    var env = selfEnv
+    env["NVIM_LISTEN_ADDRESS"] = listenAddress.path
+
+    self.nvimServerProc?.environment = env
+    self.nvimServerProc?.standardInput = inputPipe
+    self.nvimServerProc?.currentDirectoryPath = self.cwd.path
+    self.nvimServerProc?.launchPath = shellPath.path
+    self.nvimServerProc?.arguments = shellArgs
+    self.nvimServerProc?.launch()
+
+    nvimArgs.append("--headless")
+    let cmd = "exec '\(self.nvimServerExecutablePath())' '\(self.localServerName)' '\(self.remoteServerName)' "
+      .appending(self.nvimArgs.map { "\($0)" }.joined(separator: " "))
+
+    let writeHandle = inputPipe.fileHandleForWriting
+    guard let cmdData = cmd.data(using: .utf8) else {
+      preconditionFailure("Could not get Data from the string '\(cmd)'")
+    }
+    writeHandle.write(cmdData)
+    writeHandle.closeFile()
+  }
+
+  private func nvimServerExecutablePath() -> String {
+    guard let plugInsPath = Bundle(for: UiBridge.self).builtInPlugInsPath else {
+      preconditionFailure("NvimServer not available!")
+    }
+
+    return URL(fileURLWithPath: plugInsPath).appendingPathComponent("NvimServer").path
+  }
+
+  private func runLocalServer() {
+    var localCtx = CFMessagePortContext(version: 0,
+                                        info: &self.messageHandler,
+                                        retain: nil,
+                                        release: nil,
+                                        copyDescription: nil)
+
+    self.localServerPort = CFMessagePortCreateLocal(
+      kCFAllocatorDefault,
+      self.localServerName.CFStr,
+      { _, msgid, data, info in
+        return info?
+          .load(as: MessageHandler.self)
+          .handleMessage(msgId: msgid, data: data)
+      },
+      &localCtx,
+      nil // FIXME
+    )
+
+    self.localServerRunLoop = CFRunLoopGetCurrent()
+    let runLoopSrc = CFMessagePortCreateRunLoopSource(kCFAllocatorDefault, self.localServerPort, 0)
+    CFRunLoopAddSource(self.localServerRunLoop, runLoopSrc, .defaultMode)
+    CFRunLoopRun()
+  }
+
+  private let logger = LogContext.fileLogger(as: UiBridge.self, with: URL(fileURLWithPath: "/tmp/nvv-bridge.log"))
+
+  private let uuid: String
+
+  private var remoteServerPort: CFMessagePort?
+
+  private var localServerPort: CFMessagePort?
+  private var localServerThread: Thread?
+  private var localServerRunLoop: CFRunLoop?
+
+  private var nvimServerProc: Process?
+
+  private var isNvimReady = false
+  private let nvimReadyCondition = NSCondition()
+  private var isInitErrorPresent = false
+
+  private var initialWidth = 40
+  private var initialHeight = 20
+
+  private var messageHandler: MessageHandler
+
+  private var localServerName: String {
+    return "com.qvacua.vimr.\(self.uuid)"
+  }
+
+  private var remoteServerName: String {
+    return "com.qvacua.vimr.neovim-server.\(self.uuid)"
+  }
+}
+
+private class MessageHandler {
+
+  fileprivate weak var bridge: UiBridge?
+
+  fileprivate func handleMessage(msgId: Int32, data: CFData?) -> Unmanaged<CFData>? {
+    self.bridge?.handleMessage(msgId: msgId, data: data?.data)
+    return nil
+  }
+}
+
+private let timeout = CFTimeInterval(5)
+
+private extension CFData {
+
+  var data: Data {
+    return self as NSData as Data
+  }
+}
+
+private extension String {
+
+  var CFStr: CFString {
+    return self as NSString
+  }
+}
+
+private extension Data {
+
+  func asArray<T>(ofType: T.Type, count: Int) -> [T]? {
+    guard (self.count / MemoryLayout<T>.stride) <= count else {
+      return nil
+    }
+
+    return self.withUnsafeBytes { (p: UnsafePointer<T>) in Array(UnsafeBufferPointer(start: p, count: count)) }
+  }
+}
+
+private extension Array {
+
+  func data() -> Data {
+    return self.withUnsafeBytes { pointer in
+      if let baseAddr = pointer.baseAddress {
+        return Data(bytes: baseAddr, count: pointer.count)
+      }
+
+      let newPointer = UnsafeMutablePointer<Element>.allocate(capacity: self.count)
+      for (index, element) in self.enumerated() {
+        newPointer[index] = element
+      }
+      return Data(bytesNoCopy: newPointer, count: self.count, deallocator: .free)
+    }
+  }
+}
+
+private func name(of errorCode: Int32) -> String {
+  switch errorCode {
+  // @formatter:off
+  case kCFMessagePortSendTimeout:        return "kCFMessagePortSendTimeout"
+  case kCFMessagePortReceiveTimeout:     return "kCFMessagePortReceiveTimeout"
+  case kCFMessagePortIsInvalid:          return "kCFMessagePortIsInvalid"
+  case kCFMessagePortTransportError:     return "kCFMessagePortTransportError"
+  case kCFMessagePortBecameInvalidError: return "kCFMessagePortBecameInvalidError"
+  default:                               return "unknown error"
+  // @formatter:on
+  }
+}
--- a/NvimView/NvimView/UiClient.h
+++ b/NvimView/NvimView/UiClient.h
@ -14,8 +14,8 @@ NS_ASSUME_NONNULL_BEGIN
@interface UiClient : NSObject

@property (nonatomic) bool useInteractiveZsh;
-@property (nonatomic) NSURL *cwd;
-@property (nonatomic, nullable) NSArray<NSString *> *nvimArgs;
+@property (nonatomic, copy) NSURL *cwd;
+@property (nonatomic, nullable, retain) NSArray<NSString *> *nvimArgs;
@property (readonly) bool neoVimIsQuitting;
@property (nonatomic, weak) id <NvimUiBridgeProtocol> bridge;

--- a/NvimView/NvimView/UiClient.m
+++ b/NvimView/NvimView/UiClient.m
@ -23,7 +23,6 @@ static type *data_to_ ## type ## _array(NSData *data, NSUInteger count) { \

 data_to_array(NSInteger)
 data_to_array(bool)
-data_to_array(CellAttributes)

 static void log_cfmachport_error(SInt32 err, NeoVimAgentMsgId msgid, NSData *inputData) {
  switch (err) {
@ -444,13 +443,6 @@ static CFDataRef local_server_callback(CFMessagePortRef local __unused, SInt32 m
      [_bridge eolClear];
      return;

-    case NeoVimServerMsgIdSetPosition: {
-      NSInteger *values = data_to_NSInteger_array(data, 4);
-      [_bridge gotoPosition:(Position) {.row = values[0], .column = values[1]}
-               textPosition:(Position) {.row = values[2], .column = values[3]}];
-      return;
-    }
-
    case NeoVimServerMsgIdSetMenu:
      [_bridge updateMenu];
      return;
@ -489,25 +481,6 @@ static CFDataRef local_server_callback(CFMessagePortRef local __unused, SInt32 m
      return;
    }

-    case NeoVimServerMsgIdSetHighlightAttributes: {
-      CellAttributes *values = data_to_CellAttributes_array(data, 1);
-      [_bridge highlightSet:values[0]];
-      return;
-    }
-
-    case NeoVimServerMsgIdPut:
-    case NeoVimServerMsgIdPutMarked: {
-      NSString *string = [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding];
-
-      if (msgid == NeoVimServerMsgIdPut) {
-        [_bridge put:string];
-      } else {
-        [_bridge putMarkedText:string];
-      }
-
-      return;
-    }
-
    case NeoVimServerMsgIdUnmark: {
      NSInteger *values = data_to_NSInteger_array(data, 2);
      [_bridge unmarkRow:values[0] column:values[1]];
@ -523,7 +496,9 @@ static CFDataRef local_server_callback(CFMessagePortRef local __unused, SInt32 m
      return;

    case NeoVimServerMsgIdFlush: {
-      [_bridge flush];
+      NSArray <NSData *> *renderData = [NSKeyedUnarchiver unarchiveObjectWithData:data];
+
+      [_bridge flush:renderData];
      return;
    }

--- a/NvimView/SharedTypes.h
+++ b/NvimView/SharedTypes.h
@ -0,0 +1,105 @@
+/**
+ * Tae Won Ha - http://taewon.de - @hataewon
+ * See LICENSE
+ */
+
+#import <Foundation/Foundation.h>
+
+typedef NS_ENUM(NSUInteger, FontTrait) {
+  FontTraitNone = 0,
+  FontTraitItalic = (1 << 0),
+  FontTraitBold = (1 << 1),
+  FontTraitUnderline = (1 << 2),
+  FontTraitUndercurl = (1 << 3)
+};
+
+typedef struct {
+  FontTrait fontTrait;
+
+  NSInteger foreground;
+  NSInteger background;
+  NSInteger special;
+} CellAttributes;
+
+// Keep in sync with ModeShape enum in cursor_shape.h.
+typedef NS_ENUM(NSUInteger, CursorModeShape) {
+  CursorModeShapeNormal = 0,
+  CursorModeShapeVisual = 1,
+  CursorModeShapeInsert = 2,
+  CursorModeShapeReplace = 3,
+  CursorModeShapeCmdline = 4,
+  CursorModeShapeCmdlineInsert = 5,
+  CursorModeShapeCmdlineReplace = 6,
+  CursorModeShapeOperatorPending = 7,
+  CursorModeShapeVisualExclusive = 8,
+  CursorModeShapeOnCmdline = 9,
+  CursorModeShapeOnStatusLine = 10,
+  CursorModeShapeDraggingStatusLine = 11,
+  CursorModeShapeOnVerticalSepLine = 12,
+  CursorModeShapeDraggingVerticalSepLine = 13,
+  CursorModeShapeMore = 14,
+  CursorModeShapeMoreLastLine = 15,
+  CursorModeShapeShowingMatchingParen = 16,
+  CursorModeShapeTermFocus = 17,
+  CursorModeShapeCount = 18,
+};
+
+typedef struct {
+  NSInteger row;
+  NSInteger column;
+} Position;
+
+typedef NS_ENUM(NSInteger, RenderDataType) {
+  RenderDataTypePut,
+  RenderDataTypePutMarked,
+  RenderDataTypeGoto,
+  RenderDataTypeHighlight
+};
+
+typedef NS_ENUM(NSInteger, NeoVimServerMsgId) {
+  NeoVimServerMsgIdServerReady = 0,
+  NeoVimServerMsgIdNeoVimReady,
+  NeoVimServerMsgIdResize,
+  NeoVimServerMsgIdClear,
+  NeoVimServerMsgIdEolClear,
+  NeoVimServerMsgIdSetMenu,
+  NeoVimServerMsgIdBusyStart,
+  NeoVimServerMsgIdBusyStop,
+  NeoVimServerMsgIdMouseOn,
+  NeoVimServerMsgIdMouseOff,
+  NeoVimServerMsgIdModeChange,
+  NeoVimServerMsgIdSetScrollRegion,
+  NeoVimServerMsgIdScroll,
+  NeoVimServerMsgIdUnmark,
+  NeoVimServerMsgIdBell,
+  NeoVimServerMsgIdVisualBell,
+  NeoVimServerMsgIdFlush,
+  NeoVimServerMsgIdSetForeground,
+  NeoVimServerMsgIdSetBackground,
+  NeoVimServerMsgIdSetSpecial,
+  NeoVimServerMsgIdSetTitle,
+  NeoVimServerMsgIdSetIcon,
+  NeoVimServerMsgIdStop,
+  
+  NeoVimServerMsgIdDirtyStatusChanged,
+  NeoVimServerMsgIdCwdChanged,
+  NeoVimServerMsgIdColorSchemeChanged,
+  NeoVimServerMsgIdAutoCommandEvent,
+  
+  NeoVimServerMsgIdDebug1,
+};
+
+typedef NS_ENUM(NSInteger, NeoVimAgentMsgId) {
+  NeoVimAgentMsgIdAgentReady = 0,
+  NeoVimAgentMsgIdInput,
+  NeoVimAgentMsgIdInputMarked,
+  NeoVimAgentMsgIdDelete,
+  NeoVimAgentMsgIdResize,
+  NeoVimAgentMsgIdScroll,
+  
+  NeoVimAgentMsgIdGetEscapeFileNames,
+  
+  NeoVimAgentMsgIdFocusGained,
+  
+  NeoVimAgentMsgIdDebug1,
+};
--- a/VimR/VimR.xcodeproj/project.pbxproj
+++ b/VimR/VimR.xcodeproj/project.pbxproj
@ -1032,7 +1032,7 @@
 				CLANG_WARN_UNREACHABLE_CODE = YES;
 				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
 				COPY_PHASE_STRIP = NO;
-				CURRENT_PROJECT_VERSION = 256;
+				CURRENT_PROJECT_VERSION = 257;
 				DEBUG_INFORMATION_FORMAT = dwarf;
 				ENABLE_STRICT_OBJC_MSGSEND = YES;
 				ENABLE_TESTABILITY = YES;
@ -1087,7 +1087,7 @@
 				CLANG_WARN_UNREACHABLE_CODE = YES;
 				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
 				COPY_PHASE_STRIP = NO;
-				CURRENT_PROJECT_VERSION = 256;
+				CURRENT_PROJECT_VERSION = 257;
 				DEBUG_INFORMATION_FORMAT = "dwarf-with-dsym";
 				ENABLE_NS_ASSERTIONS = NO;
 				ENABLE_STRICT_OBJC_MSGSEND = YES;
--- a/VimR/VimR/Info.plist
+++ b/VimR/VimR/Info.plist
@ -32,7 +32,7 @@
 	<key>CFBundlePackageType</key>
 	<string>APPL</string>
 	<key>CFBundleShortVersionString</key>
-	<string>0.20.4-256</string>
+	<string>SNAPSHOT-257</string>
 	<key>CFBundleSignature</key>
 	<string>????</string>
 	<key>CFBundleURLTypes</key>
@ -49,7 +49,7 @@
 		</dict>
 	</array>
 	<key>CFBundleVersion</key>
-	<string>256</string>
+	<string>257</string>
 	<key>LSApplicationCategoryType</key>
 	<string>public.app-category.productivity</string>
 	<key>LSMinimumSystemVersion</key>
--- a/VimR/VimR/markdown/github-markdown.css
+++ b/VimR/VimR/markdown/github-markdown.css
@ -146,7 +146,6 @@

 .markdown-body a {
  background-color: transparent;
-  -webkit-text-decoration-skip: objects;
 }

 .markdown-body a:active,
@ -171,10 +170,6 @@
  border-style: none;
 }

-.markdown-body svg:not(:root) {
-  overflow: hidden;
-}
-
 .markdown-body code,
 .markdown-body kbd,
 .markdown-body pre {
@ -536,6 +531,10 @@
  margin-bottom: 0;
 }

+.markdown-body li {
+  word-wrap: break-all;
+}
+
 .markdown-body li>p {
  margin-top: 16px;
 }
@ -601,21 +600,13 @@
 }

 .markdown-body code {
-  padding: 0;
-  padding-top: 0.2em;
-  padding-bottom: 0.2em;
+  padding: 0.2em 0.4em;
  margin: 0;
  font-size: 85%;
  background-color: rgba(27,31,35,0.05);
  border-radius: 3px;
 }

-.markdown-body code::before,
-.markdown-body code::after {
-  letter-spacing: -0.2em;
-  content: "\00a0";
-}
-
 .markdown-body pre {
  word-wrap: normal;
 }
@ -661,11 +652,6 @@
  border: 0;
 }

-.markdown-body pre code::before,
-.markdown-body pre code::after {
-  content: normal;
-}
-
 .markdown-body .full-commit .btn-outline:not(:disabled):hover {
  color: #005cc5;
  border-color: #005cc5;
--- a/VimR/VimRTests/Info.plist
+++ b/VimR/VimRTests/Info.plist
@ -15,10 +15,10 @@
 	<key>CFBundlePackageType</key>
 	<string>BNDL</string>
 	<key>CFBundleShortVersionString</key>
-	<string>0.20.4-256</string>
+	<string>SNAPSHOT-257</string>
 	<key>CFBundleSignature</key>
 	<string>????</string>
 	<key>CFBundleVersion</key>
-	<string>256</string>
+	<string>257</string>
 </dict>
 </plist>
--- a/appcast_snapshot.xml
+++ b/appcast_snapshot.xml
@ -7,23 +7,30 @@
    <description>Most recent changes with links to updates for VimR.</description>
    <language>en</language>
    <item>
-      <title>v0.20.4-256-256</title>
+      <title>SNAPSHOT-257</title>
      <description><![CDATA[
    <ul>
-<li>GH-579: Bugfix: In certain cases closing window crashes in fullscreen.</li>
-<li>GH-545: Bugfix: Focus is lost when entering/exiting fullscreen.</li>
+<li><em>WARNING</em>: This snapshot may be unstable.</li>
+<li>Migrate one of the few Objective-C parts to Swift.</li>
+<li>GH-605: Slightly improve scroll performance.</li>
+<li>Dependencies updates:<ul>
+<li>ReactiveX/RxSwift@4.1.1</li>
+<li>sindresorhus/github-markdown-css@2.10.0</li>
+<li>Quick/Nimble@7.0.3</li>
+</ul>
+</li>
 </ul>
  ]]></description>
      <releaseNotesLink>
-        https://github.com/qvacua/vimr/releases/tag/v0.20.4-256-256
+        https://github.com/qvacua/vimr/releases/tag/snapshot/257
      </releaseNotesLink>
-      <pubDate>2018-01-14T13:52:11.952630</pubDate>
+      <pubDate>2018-01-22T19:35:09.975390</pubDate>
      <minimumSystemVersion>10.10.0</minimumSystemVersion>
-      <enclosure url="https://github.com/qvacua/vimr/releases/download/v0.20.4-256-256/VimR-v0.20.4-256-256.tar.bz2"
-                 sparkle:version="256"
-                 sparkle:shortVersionString="0.20.4-256"
-                 sparkle:dsaSignature="MC4CFQDnhKRgXxK1qG9jUIjOotP0iAr60gIVAIB19PareTTX2pyUbZRFxgJbTLzh"
-                 length="11913110"
+      <enclosure url="https://github.com/qvacua/vimr/releases/download/snapshot/257/VimR-SNAPSHOT-257.tar.bz2"
+                 sparkle:version="257"
+                 sparkle:shortVersionString="SNAPSHOT-257"
+                 sparkle:dsaSignature="MC4CFQDU5plbXXSLDfjxHdaa8BVIDSczLAIVAOSMo+hC92C07HMViUu9iOMjlBVN"
+                 length="11921363"
                 type="application/octet-stream"/>
    </item>
  </channel>
--- a/bin/generate_source.py
+++ b/bin/generate_source.py
@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3

 import os
 import io
@ -7,7 +7,7 @@ from string import Template

 print(os.getcwd())
 if 'CONFIGURATION' in os.environ and os.environ['CONFIGURATION'] == 'Debug':
-    if os.path.isfile('./NvimView/NvimAutoCommandEvent.generated.h') and os.path.isfile('./NvimView/NvimAutoCommandEvent.generated.m'):
+    if os.path.isfile('./NvimView/NvimAutoCommandEvent.generated.swift'):
        print("Files already there, exiting...")
        exit(0)

@ -21,43 +21,18 @@ def convert(line):


 auto_cmds = [convert(line) for line in raw_auto_cmds]
-auto_cmds_impl_template = Template(
+auto_cmds_template = Template(
 '''
-@import Foundation;
-#import "NvimAutoCommandEvent.generated.h"
-
-NSString *nvimAutoCommandEventName(NvimAutoCommandEvent event) {
-  switch (event) {
+enum NvimAutoCommandEvent: Int {
 ${event_cases}
-    default: return @"NON_EXISTING_EVENT";
-  }
 }
-''')
-
-impl = auto_cmds_impl_template.substitute(
-    event_cases='\n'.join(
-        ['    case NvimAutoCommandEvent{}: return @"{}";'.format(event[0], event[0]) for event in auto_cmds])
-)
-with io.open('./NvimView/NvimAutoCommandEvent.generated.m', 'w') as auto_cmds_impl_file:
-    auto_cmds_impl_file.write(unicode(impl))
-
-auto_cmds_header_template = Template(
 '''
-@import Foundation;
-
-typedef NS_ENUM(NSUInteger, NvimAutoCommandEvent) {
-${event_cases}
-};
-
-#define NumberOfAutoCommandEvents ${count}
-extern NSString * __nonnull nvimAutoCommandEventName(NvimAutoCommandEvent event);
-''')
-
-header = auto_cmds_header_template.substitute(
-    event_cases='\n'.join(
-        ['  NvimAutoCommandEvent{} = {},'.format(event[0], event[1]) for event in auto_cmds]
-    ),
-    count=str(len(auto_cmds))
 )
-with io.open('./NvimView/NvimAutoCommandEvent.generated.h', 'w') as auto_cmds_header_file:
-    auto_cmds_header_file.write(unicode(header))
+
+header = auto_cmds_template.substitute(
+    event_cases='\n'.join(
+        ['  case {} = {}'.format(event[0].lower(), event[1]) for event in auto_cmds]
+    ),
+)
+with io.open('./NvimView/NvimAutoCommandEvent.generated.swift', 'w') as auto_cmds_header_file:
+    auto_cmds_header_file.write(header)
--- a/resources/release-notes.md
+++ b/resources/release-notes.md
@ -1,5 +1,14 @@
 # next

+* GH-605: Slightly improve scroll performance.
+* Migrate one of the few Objective-C parts to Swift.
+* Dependencies updates:
+    - ReactiveX/RxSwift@4.1.1
+    - sindresorhus/github-markdown-css@2.10.0
+    - Quick/Nimble@7.0.3
+
+# 0.20.4-256
+
 * GH-579: Bugfix: In certain cases closing window crashes in fullscreen.
 * GH-545: Bugfix: Focus is lost when entering/exiting fullscreen.