mirror of
https://github.com/qvacua/vimr.git
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634 lines
19 KiB
Objective-C
634 lines
19 KiB
Objective-C
/**
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* Tae Won Ha - http://taewon.de - @hataewon
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* See LICENSE
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*/
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#import <Foundation/Foundation.h>
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#import "Logging.h"
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#import "server_globals.h"
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#import "NeoVimServer.h"
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#import "NeoVimUiBridgeProtocol.h"
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// FileInfo and Boolean are #defined by Carbon and NeoVim: Since we don't need the Carbon versions of them, we rename
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// them.
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#define FileInfo CarbonFileInfo
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#define Boolean CarbonBoolean
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#import <nvim/vim.h>
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#import <nvim/api/vim.h>
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#import <nvim/ui.h>
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#import <nvim/ui_bridge.h>
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#import <nvim/event/signal.h>
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#import <nvim/main.h>
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#import <nvim/screen.h>
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#define pun_type(t, x) (*((t *)(&x)))
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typedef struct {
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UIBridgeData *bridge;
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Loop *loop;
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bool stop;
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// FIXME: dunno whether we need this: copied from tui.c
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bool cont_received;
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SignalWatcher cont_handle;
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} ServerUiData;
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// We declare nvim_main because it's not declared in any header files of neovim
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extern int nvim_main(int argc, char **argv);
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static unsigned int _default_foreground = qDefaultForeground;
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static unsigned int _default_background = qDefaultBackground;
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static unsigned int _default_special = qDefaultSpecial;
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// The thread in which neovim's main runs
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static uv_thread_t _nvim_thread;
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// Condition variable used by the XPC's init to wait till our custom UI initialization is finished inside neovim
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static bool _is_ui_launched = false;
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static uv_mutex_t _mutex;
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static uv_cond_t _condition;
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static ServerUiData *_server_ui_data;
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static NSString *_marked_text = nil;
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static int _marked_row = 0;
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static int _marked_column = 0;
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// for 하 -> hanja popup, Cocoa first inserts 하, then sets marked text, cf docs/notes-on-cocoa-text-input.md
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static int _marked_delta = 0;
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static int _put_row = -1;
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static int _put_column = -1;
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static NSString *_backspace = nil;
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static dispatch_queue_t _queue;
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static inline int screen_cursor_row() {
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return curwin->w_winrow + curwin->w_wrow;
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}
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static inline int screen_cursor_column() {
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return curwin->w_wincol + curwin->w_wcol;
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}
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static inline void queue(void (^block)()) {
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dispatch_sync(_queue, ^{
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@autoreleasepool {
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block();
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}
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});
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}
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static void set_ui_size(UIBridgeData *bridge, int width, int height) {
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bridge->ui->width = width;
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bridge->ui->height = height;
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bridge->bridge.width = width;
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bridge->bridge.height = height;
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}
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static void sigcont_cb(SignalWatcher *watcher __unused, int signum __unused, void *data) {
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((ServerUiData *) data)->cont_received = true;
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}
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static void server_ui_scheduler(Event event, void *d) {
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UI *ui = d;
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ServerUiData *data = ui->data;
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loop_schedule(data->loop, event);
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}
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static void server_ui_main(UIBridgeData *bridge, UI *ui) {
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Loop loop;
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loop_init(&loop, NULL);
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_server_ui_data = xcalloc(1, sizeof(ServerUiData));
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ui->data = _server_ui_data;
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_server_ui_data->bridge = bridge;
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_server_ui_data->loop = &loop;
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// FIXME: dunno whether we need this: copied from tui.c
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signal_watcher_init(_server_ui_data->loop, &_server_ui_data->cont_handle, _server_ui_data);
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signal_watcher_start(&_server_ui_data->cont_handle, sigcont_cb, SIGCONT);
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set_ui_size(bridge, 30, 15);
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_server_ui_data->stop = false;
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CONTINUE(bridge);
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uv_mutex_lock(&_mutex);
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_is_ui_launched = true;
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uv_cond_signal(&_condition);
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uv_mutex_unlock(&_mutex);
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while (!_server_ui_data->stop) {
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loop_poll_events(&loop, -1);
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}
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ui_bridge_stopped(bridge);
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loop_close(&loop);
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xfree(_server_ui_data);
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xfree(ui);
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}
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// FIXME: dunno whether we need this: copied from tui.c
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static void suspend_event(void **argv) {
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UI *ui = argv[0];
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ServerUiData *data = ui->data;
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data->cont_received = false;
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kill(0, SIGTSTP);
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while (!data->cont_received) {
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// poll the event loop until SIGCONT is received
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loop_poll_events(data->loop, -1);
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}
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CONTINUE(data->bridge);
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}
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#pragma mark NeoVim's UI callbacks
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static void server_ui_resize(UI *ui __unused, int width, int height) {
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queue(^{
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int values[] = { width, height };
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NSData *data = [[NSData alloc] initWithBytes:values length:(2 * sizeof(int))];
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[_neovim_server sendMessageWithId:NeoVimServerMsgIdResize data:data];
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[data release];
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});
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}
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static void server_ui_clear(UI *ui __unused) {
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queue(^{
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[_neovim_server sendMessageWithId:NeoVimServerMsgIdClear];
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});
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}
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static void server_ui_eol_clear(UI *ui __unused) {
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queue(^{
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[_neovim_server sendMessageWithId:NeoVimServerMsgIdEolClear];
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});
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}
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static void server_ui_cursor_goto(UI *ui __unused, int row, int col) {
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queue(^{
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_put_row = row;
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_put_column = col;
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int values[] = { row, col, screen_cursor_row(), screen_cursor_column() };
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NSData *data = [[NSData alloc] initWithBytes:values length:(4 * sizeof(int))];
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[_neovim_server sendMessageWithId:NeoVimServerMsgIdSetPosition data:data];
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[data release];
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});
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}
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static void server_ui_update_menu(UI *ui __unused) {
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queue(^{
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[_neovim_server sendMessageWithId:NeoVimServerMsgIdSetMenu];
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});
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}
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static void server_ui_busy_start(UI *ui __unused) {
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queue(^{
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[_neovim_server sendMessageWithId:NeoVimServerMsgIdBusyStart];
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});
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}
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static void server_ui_busy_stop(UI *ui __unused) {
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queue(^{
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[_neovim_server sendMessageWithId:NeoVimServerMsgIdBusyStop];
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});
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}
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static void server_ui_mouse_on(UI *ui __unused) {
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queue(^{
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[_neovim_server sendMessageWithId:NeoVimServerMsgIdMouseOn];
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});
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}
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static void server_ui_mouse_off(UI *ui __unused) {
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queue(^{
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[_neovim_server sendMessageWithId:NeoVimServerMsgIdMouseOff];
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});
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}
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static void server_ui_mode_change(UI *ui __unused, int mode) {
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queue(^{
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int value = mode;
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NSData *data = [[NSData alloc] initWithBytes:&value length:(1 * sizeof(int))];
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[_neovim_server sendMessageWithId:NeoVimServerMsgIdModeChange data:data];
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[data release];
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});
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}
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static void server_ui_set_scroll_region(UI *ui __unused, int top, int bot, int left, int right) {
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queue(^{
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int values[] = { top, bot, left, right };
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NSData *data = [[NSData alloc] initWithBytes:values length:(4 * sizeof(int))];
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[_neovim_server sendMessageWithId:NeoVimServerMsgIdSetScrollRegion data:data];
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[data release];
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});
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}
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static void server_ui_scroll(UI *ui __unused, int count) {
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queue(^{
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int value = count;
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NSData *data = [[NSData alloc] initWithBytes:&value length:(1 * sizeof(int))];
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[_neovim_server sendMessageWithId:NeoVimServerMsgIdScroll data:data];
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[data release];
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});
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}
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static void server_ui_highlight_set(UI *ui __unused, HlAttrs attrs) {
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queue(^{
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FontTrait trait = FontTraitNone;
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if (attrs.italic) {
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trait |= FontTraitItalic;
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}
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if (attrs.bold) {
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trait |= FontTraitBold;
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}
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if (attrs.underline) {
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trait |= FontTraitUnderline;
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}
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if (attrs.undercurl) {
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trait |= FontTraitUndercurl;
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}
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CellAttributes cellAttrs;
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cellAttrs.fontTrait = trait;
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unsigned int fg = attrs.foreground == -1 ? _default_foreground : pun_type(unsigned int, attrs.foreground);
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unsigned int bg = attrs.background == -1 ? _default_background : pun_type(unsigned int, attrs.background);
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cellAttrs.foreground = attrs.reverse ? bg : fg;
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cellAttrs.background = attrs.reverse ? fg : bg;
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cellAttrs.special = attrs.special == -1 ? _default_special : pun_type(unsigned int, attrs.special);
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NSData *data = [[NSData alloc] initWithBytes:&cellAttrs length:sizeof(CellAttributes)];
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[_neovim_server sendMessageWithId:NeoVimServerMsgIdSetHighlightAttributes data:data];
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[data release];
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});
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}
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static void server_ui_put(UI *ui __unused, uint8_t *str, size_t len) {
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queue(^{
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NSString *string = [[NSString alloc] initWithBytes:str length:len encoding:NSUTF8StringEncoding];
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// printf("%s", [string cStringUsingEncoding:NSUTF8StringEncoding]);
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NSData *data = [string dataUsingEncoding:NSUTF8StringEncoding];
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if (_marked_text != nil && _marked_row == _put_row && _marked_column == _put_column) {
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// log4Debug("putting marked text: '%@'", string);
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[_neovim_server sendMessageWithId:NeoVimServerMsgIdPutMarked data:data];
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} else if (_marked_text != nil && len == 0 && _marked_row == _put_row && _marked_column == _put_column - 1) {
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// log4Debug("putting marked text cuz zero");
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[_neovim_server sendMessageWithId:NeoVimServerMsgIdPutMarked data:data];
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} else {
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// log4Debug("putting non-marked text: '%@'", string);
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[_neovim_server sendMessageWithId:NeoVimServerMsgIdPut data:data];
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}
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_put_column += 1;
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[string release];
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});
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}
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static void server_ui_bell(UI *ui __unused) {
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queue(^{
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[_neovim_server sendMessageWithId:NeoVimServerMsgIdBell];
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});
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}
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static void server_ui_visual_bell(UI *ui __unused) {
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queue(^{
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[_neovim_server sendMessageWithId:NeoVimServerMsgIdVisualBell];
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});
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}
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static void server_ui_flush(UI *ui __unused) {
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queue(^{
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[_neovim_server sendMessageWithId:NeoVimServerMsgIdFlush];
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});
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}
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static void server_ui_update_fg(UI *ui __unused, int fg) {
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queue(^{
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int value;
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if (fg == -1) {
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value = _default_foreground;
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NSData *data = [[NSData alloc] initWithBytes:&value length:(1 * sizeof(int))];
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[_neovim_server sendMessageWithId:NeoVimServerMsgIdSetForeground data:data];
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[data release];
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return;
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}
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_default_foreground = pun_type(unsigned int, fg);
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value = fg;
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NSData *data = [[NSData alloc] initWithBytes:&value length:(1 * sizeof(int))];
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[_neovim_server sendMessageWithId:NeoVimServerMsgIdSetForeground data:data];
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[data release];
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});
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}
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static void server_ui_update_bg(UI *ui __unused, int bg) {
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queue(^{
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int value;
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if (bg == -1) {
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value = _default_background;
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NSData *data = [[NSData alloc] initWithBytes:&value length:(1 * sizeof(int))];
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[_neovim_server sendMessageWithId:NeoVimServerMsgIdSetBackground data:data];
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[data release];
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return;
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}
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_default_background = pun_type(unsigned int, bg);
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value = bg;
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NSData *data = [[NSData alloc] initWithBytes:&value length:(1 * sizeof(int))];
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[_neovim_server sendMessageWithId:NeoVimServerMsgIdSetBackground data:data];
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[data release];
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});
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}
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static void server_ui_update_sp(UI *ui __unused, int sp) {
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queue(^{
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int value;
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if (sp == -1) {
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value = _default_special;
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NSData *data = [[NSData alloc] initWithBytes:&value length:(1 * sizeof(int))];
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[_neovim_server sendMessageWithId:NeoVimServerMsgIdSetSpecial data:data];
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[data release];
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return;
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}
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_default_special = pun_type(unsigned int, sp);
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value = sp;
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NSData *data = [[NSData alloc] initWithBytes:&value length:(1 * sizeof(int))];
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[_neovim_server sendMessageWithId:NeoVimServerMsgIdSetSpecial data:data];
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[data release];
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});
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}
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static void server_ui_suspend(UI *ui __unused) {
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queue(^{
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[_neovim_server sendMessageWithId:NeoVimServerMsgIdSuspend];
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ServerUiData *data = ui->data;
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// FIXME: dunno whether we need this: copied from tui.c
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// kill(0, SIGTSTP) won't stop the UI thread, so we must poll for SIGCONT
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// before continuing. This is done in another callback to avoid
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// loop_poll_events recursion
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queue_put_event(data->loop->fast_events, event_create(1, suspend_event, 1, ui));
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});
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}
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static void server_ui_set_title(UI *ui __unused, char *title) {
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if (title == NULL) {
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return;
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}
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queue(^{
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NSString *string = [[NSString alloc] initWithCString:title encoding:NSUTF8StringEncoding];
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[_neovim_server sendMessageWithId:NeoVimServerMsgIdSetTitle data:[string dataUsingEncoding:NSUTF8StringEncoding]];
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[string release];
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});
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}
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static void server_ui_set_icon(UI *ui __unused, char *icon) {
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if (icon == NULL) {
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return;
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}
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queue(^{
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NSString *string = [[NSString alloc] initWithCString:icon encoding:NSUTF8StringEncoding];
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[_neovim_server sendMessageWithId:NeoVimServerMsgIdSetIcon data:[string dataUsingEncoding:NSUTF8StringEncoding]];
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[string release];
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});
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}
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static void server_ui_stop(UI *ui __unused) {
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queue(^{
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[_neovim_server sendMessageWithId:NeoVimServerMsgIdStop];
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ServerUiData *data = (ServerUiData *) ui->data;
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data->stop = true;
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});
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}
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#pragma mark Helper functions
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static void force_redraw(void **argv __unused) {
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must_redraw = CLEAR;
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update_screen(0);
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}
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static void refresh_ui(void **argv __unused) {
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ui_refresh();
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}
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static void neovim_input(void **argv) {
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@autoreleasepool {
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NSString *input = (NSString *) argv[0];
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// FIXME: check the length of the consumed bytes by neovim and if not fully consumed, call vim_input again.
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vim_input((String) {
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.data = (char *) input.UTF8String,
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.size = [input lengthOfBytesUsingEncoding:NSUTF8StringEncoding]
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});
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[input release]; // retain in loop_schedule(&main_loop, ...) (in _queue) somewhere
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}
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}
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static void delete_marked_text() {
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NSUInteger length = [_marked_text lengthOfBytesUsingEncoding:NSUTF32StringEncoding] / 4;
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[_marked_text release];
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_marked_text = nil;
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for (int i = 0; i < length; i++) {
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loop_schedule(&main_loop, event_create(1, neovim_input, 1, [_backspace retain])); // release in neovim_input
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}
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}
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static void run_neovim(void *arg __unused) {
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char *argv[1];
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argv[0] = "nvim";
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int returnCode = nvim_main(1, argv);
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NSLog(@"neovim's main returned with code: %d\n", returnCode);
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}
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#pragma mark Public
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void custom_ui_start(void) {
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UI *ui = xcalloc(1, sizeof(UI));
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ui->rgb = true;
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ui->stop = server_ui_stop;
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ui->resize = server_ui_resize;
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ui->clear = server_ui_clear;
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ui->eol_clear = server_ui_eol_clear;
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ui->cursor_goto = server_ui_cursor_goto;
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ui->update_menu = server_ui_update_menu;
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ui->busy_start = server_ui_busy_start;
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ui->busy_stop = server_ui_busy_stop;
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ui->mouse_on = server_ui_mouse_on;
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ui->mouse_off = server_ui_mouse_off;
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ui->mode_change = server_ui_mode_change;
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ui->set_scroll_region = server_ui_set_scroll_region;
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ui->scroll = server_ui_scroll;
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ui->highlight_set = server_ui_highlight_set;
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ui->put = server_ui_put;
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ui->bell = server_ui_bell;
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ui->visual_bell = server_ui_visual_bell;
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ui->update_fg = server_ui_update_fg;
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ui->update_bg = server_ui_update_bg;
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ui->update_sp = server_ui_update_sp;
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ui->flush = server_ui_flush;
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ui->suspend = server_ui_suspend;
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ui->set_title = server_ui_set_title;
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ui->set_icon = server_ui_set_icon;
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ui_bridge_attach(ui, server_ui_main, server_ui_scheduler);
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}
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void server_start_neovim() {
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_queue = dispatch_queue_create("com.qvacua.vimr.neovim-server.queue", DISPATCH_QUEUE_SERIAL);
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// set $VIMRUNTIME to ${RESOURCE_PATH_OF_XPC_BUNDLE}/runtime
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NSString *bundlePath = [NSBundle bundleForClass:[NeoVimServer class]].bundlePath;
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NSString *resourcesPath = [bundlePath.stringByDeletingLastPathComponent stringByAppendingPathComponent:@"Resources"];
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NSString *runtimePath = [resourcesPath stringByAppendingPathComponent:@"runtime"];
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setenv("VIMRUNTIME", runtimePath.fileSystemRepresentation, true);
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uv_mutex_init(&_mutex);
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uv_cond_init(&_condition);
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uv_thread_create(&_nvim_thread, run_neovim, NULL);
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log4Info("NeoVim started");
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// continue only after our UI main code for neovim has been fully initialized
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uv_mutex_lock(&_mutex);
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while (!_is_ui_launched) {
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uv_cond_wait(&_condition, &_mutex);
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}
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uv_mutex_unlock(&_mutex);
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uv_cond_destroy(&_condition);
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uv_mutex_destroy(&_mutex);
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_backspace = [[NSString alloc] initWithString:@"<BS>"];
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[_neovim_server sendMessageWithId:NeoVimServerMsgIdNeoVimReady];
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}
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void server_delete(NSInteger count) {
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queue(^{
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_marked_delta = 0;
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// Very ugly: When we want to have the Hanja for 하, Cocoa first finalizes 하, then sets the Hanja as marked text.
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// The main app will call this method when this happens, thus compute how many cell we have to go backward to
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// correctly mark the will-be-soon-inserted Hanja... See also docs/notes-on-cocoa-text-input.md
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int emptyCounter = 0;
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for (int i = 0; i < count; i++) {
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_marked_delta -= 1;
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// TODO: -1 because we assume that the cursor is one cell ahead, probably not always correct...
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schar_T character = ScreenLines[_put_row * screen_Rows + _put_column - i - emptyCounter - 1];
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if (character == 0x00 || character == ' ') {
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// FIXME: dunno yet, why we have to also match ' '...
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_marked_delta -= 1;
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emptyCounter += 1;
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}
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}
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// log4Debug("put cursor: %d:%d, count: %li, delta: %d", _put_row, _put_column, count, _marked_delta);
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for (int i = 0; i < count; i++) {
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loop_schedule(&main_loop, event_create(1, neovim_input, 1, [_backspace retain])); // release in neovim_input
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}
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});
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}
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void server_redraw() {
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loop_schedule(&main_loop, event_create(1, force_redraw, 0));
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}
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void server_resize(int width, int height) {
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queue(^{
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set_ui_size(_server_ui_data->bridge, width, height);
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loop_schedule(&main_loop, event_create(1, refresh_ui, 0));
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});
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}
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void server_vim_input(NSString *input) {
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queue(^{
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if (_marked_text == nil) {
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loop_schedule(&main_loop, event_create(1, neovim_input, 1, [input retain])); // release in neovim_input
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return;
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}
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// Handle cases like ㅎ -> arrow key: The previously marked text is the same as the finalized text which should
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// inserted. Neovim's drawing code is optimized such that it does not call put in this case again, thus, we have
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// to manually unmark the cells in the main app.
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if ([_marked_text isEqualToString:input]) {
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// log4Debug("unmarking text: '%@'\t now at %d:%d", input, _put_row, _put_column);
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const char *str = [_marked_text cStringUsingEncoding:NSUTF8StringEncoding];
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size_t cellCount = mb_string2cells((const char_u *) str);
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for (int i = 1; i <= cellCount; i++) {
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// log4Debug("unmarking at %d:%d", _put_row, _put_column - i);
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int values[] = { _put_row, MAX(_put_column - i, 0) };
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NSData *data = [[NSData alloc] initWithBytes:values length:(2 * sizeof(int))];
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[_neovim_server sendMessageWithId:NeoVimServerMsgIdUnmark data:data];
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[data release];
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}
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}
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delete_marked_text();
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loop_schedule(&main_loop, event_create(1, neovim_input, 1, [input retain])); // release in neovim_input
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});
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}
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void server_vim_input_marked_text(NSString *markedText) {
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queue(^{
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if (_marked_text == nil) {
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_marked_row = _put_row;
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_marked_column = _put_column + _marked_delta;
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// log4Debug("marking position: %d:%d(%d + %d)", _put_row, _marked_column, _put_column, _marked_delta);
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_marked_delta = 0;
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} else {
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delete_marked_text();
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}
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// log4Debug("inserting marked text '%@' at %d:%d", markedText, _put_row, _put_column);
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server_insert_marked_text(markedText);
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});
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}
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void server_insert_marked_text(NSString *markedText) {
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_marked_text = [markedText retain]; // release when the final text is input in -vimInput
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loop_schedule(&main_loop, event_create(1, neovim_input, 1, [_marked_text retain])); // release in neovim_input
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}
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bool server_has_dirty_docs() {
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FOR_ALL_BUFFERS(buffer) {
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if (buffer->b_changed) {
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return true;
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}
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}
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return false;
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}
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