Adding upstream version 2:9.0.1378.upstream/2%9.0.1378upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 524 insertions, 0 deletions

diff --git a/src/os_macosx.m b/src/os_macosx.m
new file mode 100644
index 0000000..33d29b6
--- /dev/null
+++ b/src/os_macosx.m
@@ -0,0 +1,524 @@
+/* vi:set ts=8 sts=4 sw=4 noet:
+ *
+ * VIM - Vi IMproved		by Bram Moolenaar
+ *
+ * Do ":help uganda"  in Vim to read copying and usage conditions.
+ * Do ":help credits" in Vim to see a list of people who contributed.
+ * See README.txt for an overview of the Vim source code.
+ */
+
+/*
+ * os_macosx.m -- Mac specific things for Mac OS X.
+ */
+
+/* Suppress compiler warnings to non-C89 code. */
+#if defined(__clang__) && defined(__STRICT_ANSI__)
+# pragma clang diagnostic push
+# pragma clang diagnostic ignored "-Wc99-extensions"
+# pragma clang diagnostic push
+# pragma clang diagnostic ignored "-Wdeclaration-after-statement"
+#endif
+
+/* Avoid a conflict for the definition of Boolean between Mac header files and
+ * X11 header files. */
+#define NO_X11_INCLUDES
+
+#include <stdbool.h>
+#include <mach/boolean.h>
+#include <sys/errno.h>
+#include <stdlib.h>
+
+#ifdef FEAT_RELTIME
+#include <dispatch/dispatch.h>
+#endif
+
+#include "vim.h"
+#import <AppKit/AppKit.h>
+
+
+/*
+ * Clipboard support for the console.
+ */
+#if defined(FEAT_CLIPBOARD)
+
+/* Used to identify clipboard data copied from Vim. */
+
+NSString *VimPboardType = @"VimPboardType";
+
+    void
+clip_mch_lose_selection(Clipboard_T *cbd UNUSED)
+{
+}
+
+
+    int
+clip_mch_own_selection(Clipboard_T *cbd UNUSED)
+{
+    /* This is called whenever there is a new selection and 'guioptions'
+     * contains the "a" flag (automatically copy selection).  Return TRUE, else
+     * the "a" flag does nothing.  Note that there is no concept of "ownership"
+     * of the clipboard in Mac OS X.
+     */
+    return TRUE;
+}
+
+
+    void
+clip_mch_request_selection(Clipboard_T *cbd)
+{
+    NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
+
+    NSPasteboard *pb = [NSPasteboard generalPasteboard];
+#if MAC_OS_X_VERSION_MAX_ALLOWED >= 1060
+    NSArray *supportedTypes = [NSArray arrayWithObjects:VimPboardType,
+	    NSPasteboardTypeString, nil];
+#else
+    NSArray *supportedTypes = [NSArray arrayWithObjects:VimPboardType,
+	    NSStringPboardType, nil];
+#endif
+    NSString *bestType = [pb availableTypeFromArray:supportedTypes];
+    if (!bestType) goto releasepool;
+
+    int motion_type = MAUTO;
+    NSString *string = nil;
+
+    if ([bestType isEqual:VimPboardType])
+    {
+	/* This type should consist of an array with two objects:
+	 *   1. motion type (NSNumber)
+	 *   2. text (NSString)
+	 * If this is not the case we fall back on using NSPasteboardTypeString.
+	 */
+	id plist = [pb propertyListForType:VimPboardType];
+	if ([plist isKindOfClass:[NSArray class]] && [plist count] == 2)
+	{
+	    id obj = [plist objectAtIndex:1];
+	    if ([obj isKindOfClass:[NSString class]])
+	    {
+		motion_type = [[plist objectAtIndex:0] intValue];
+		string = obj;
+	    }
+	}
+    }
+
+    if (!string)
+    {
+	/* Use NSPasteboardTypeString.  The motion type is detected automatically.
+	 */
+#if MAC_OS_X_VERSION_MAX_ALLOWED >= 1060
+	NSMutableString *mstring =
+		[[pb stringForType:NSPasteboardTypeString] mutableCopy];
+#else
+	NSMutableString *mstring =
+		[[pb stringForType:NSStringPboardType] mutableCopy];
+#endif
+	if (!mstring) goto releasepool;
+
+	/* Replace unrecognized end-of-line sequences with \x0a (line feed). */
+	NSRange range = { 0, [mstring length] };
+	unsigned n = [mstring replaceOccurrencesOfString:@"\x0d\x0a"
+					     withString:@"\x0a" options:0
+						  range:range];
+	if (0 == n)
+	{
+	    n = [mstring replaceOccurrencesOfString:@"\x0d" withString:@"\x0a"
+					   options:0 range:range];
+	}
+
+	string = mstring;
+    }
+
+    /* Default to MAUTO, uses MCHAR or MLINE depending on trailing NL. */
+    if (!(MCHAR == motion_type || MLINE == motion_type || MBLOCK == motion_type
+	    || MAUTO == motion_type))
+	motion_type = MAUTO;
+
+    char_u *str = (char_u*)[string UTF8String];
+    int len = [string lengthOfBytesUsingEncoding:NSUTF8StringEncoding];
+
+    if (input_conv.vc_type != CONV_NONE)
+	str = string_convert(&input_conv, str, &len);
+
+    if (str)
+	clip_yank_selection(motion_type, str, len, cbd);
+
+    if (input_conv.vc_type != CONV_NONE)
+	vim_free(str);
+
+releasepool:
+    [pool release];
+}
+
+
+/*
+ * Send the current selection to the clipboard.
+ */
+    void
+clip_mch_set_selection(Clipboard_T *cbd)
+{
+    NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
+
+    /* If the '*' register isn't already filled in, fill it in now. */
+    cbd->owned = TRUE;
+    clip_get_selection(cbd);
+    cbd->owned = FALSE;
+
+    /* Get the text to put on the pasteboard. */
+    long_u llen = 0; char_u *str = 0;
+    int motion_type = clip_convert_selection(&str, &llen, cbd);
+    if (motion_type < 0)
+	goto releasepool;
+
+    /* TODO: Avoid overflow. */
+    int len = (int)llen;
+    if (output_conv.vc_type != CONV_NONE)
+    {
+	char_u *conv_str = string_convert(&output_conv, str, &len);
+	if (conv_str)
+	{
+	    vim_free(str);
+	    str = conv_str;
+	}
+    }
+
+    if (len > 0)
+    {
+	NSString *string = [[NSString alloc]
+	    initWithBytes:str length:len encoding:NSUTF8StringEncoding];
+
+	/* See clip_mch_request_selection() for info on pasteboard types. */
+	NSPasteboard *pb = [NSPasteboard generalPasteboard];
+#if MAC_OS_X_VERSION_MAX_ALLOWED >= 1060
+	NSArray *supportedTypes = [NSArray arrayWithObjects:VimPboardType,
+		NSPasteboardTypeString, nil];
+#else
+	NSArray *supportedTypes = [NSArray arrayWithObjects:VimPboardType,
+		NSStringPboardType, nil];
+#endif
+	[pb declareTypes:supportedTypes owner:nil];
+
+	NSNumber *motion = [NSNumber numberWithInt:motion_type];
+	NSArray *plist = [NSArray arrayWithObjects:motion, string, nil];
+	[pb setPropertyList:plist forType:VimPboardType];
+
+#if MAC_OS_X_VERSION_MAX_ALLOWED >= 1060
+	[pb setString:string forType:NSPasteboardTypeString];
+#else
+	[pb setString:string forType:NSStringPboardType];
+#endif
+
+	[string release];
+    }
+
+    vim_free(str);
+releasepool:
+    [pool release];
+}
+
+#endif /* FEAT_CLIPBOARD */
+
+#ifdef FEAT_RELTIME
+/*
+ * The following timer code is based on a Gist by Jorgen Lundman:
+ *
+ *     https://gist.github.com/lundman
+ */
+
+typedef struct macos_timer macos_timer_T;
+
+    static void
+_timer_cancel(void *arg UNUSED)
+{
+    // This is not currently used, but it might be useful in the future and
+    // it is non-trivial enough to provide as usable implementation.
+#   if 0
+    macos_timer_T *timerid = (macos_timer_T *)arg;
+
+    dispatch_release(timerid->tim_timer);
+    dispatch_release(timerid->tim_queue);
+    timerid->tim_timer = NULL;
+    timerid->tim_queue = NULL;
+    free(timerid);
+#   endif
+}
+
+    static void
+_timer_handler(void *arg)
+{
+    macos_timer_T *timerid = (macos_timer_T *)arg;
+    union sigval sv;
+
+    sv.sival_ptr = timerid->tim_arg;
+
+    if (timerid->tim_func != NULL)
+	timerid->tim_func(sv);
+}
+
+    static uint64_t
+itime_to_ns(const struct timespec *it)
+{
+    time_t   sec  = it->tv_sec;
+    long     nsec = it->tv_nsec;
+    uint64_t ns   = NSEC_PER_SEC * sec + nsec;
+
+    return ns == 0 ? DISPATCH_TIME_FOREVER : ns;
+}
+
+/*
+ * A partial emulation of the POSIX timer_create function.
+ *
+ * The limitations and differences include:
+ *
+ * - Only CLOCK_REALTIME and CLOCK_MONOTONIC are supported as clockid
+ *   values.
+ * - Even if CLOCK_REALTIME is specified, internally the mach_absolute_time
+ *   source is used internally.
+ * - The only notification method supported is SIGEV_THREAD.
+ */
+    inline int
+timer_create(clockid_t clockid, struct sigevent *sevp, timer_t *timerid)
+{
+    macos_timer_T *timer = NULL;
+
+    // We only support real time and monotonic clocks; and SIGEV_THREAD
+    // notification. In practice, there is no difference between the two
+    // types of clocks on MacOS - we always use the mach_machine_time
+    // source.
+    if (   (clockid != CLOCK_REALTIME && clockid != CLOCK_MONOTONIC)
+        || sevp->sigev_notify != SIGEV_THREAD)
+    {
+	semsg("clockid: %d %d", clockid, CLOCK_REALTIME);
+	semsg("notify:  %d %d", sevp->sigev_notify, SIGEV_THREAD);
+	errno = ENOTSUP;
+	return -1;
+    }
+
+    timer = (macos_timer_T *)malloc(sizeof(macos_timer_T));
+    if (timer == NULL)
+    {
+	errno = ENOMEM;
+	return -1;
+    }
+    *timerid = timer;
+
+    timer->tim_queue = dispatch_queue_create(
+	    "org.vim.timerqueue", NULL);
+    if (timer->tim_queue == NULL)
+    {
+	errno = ENOMEM;
+	return -1;
+    }
+
+    timer->tim_timer = dispatch_source_create(
+	    DISPATCH_SOURCE_TYPE_TIMER, 0, 0, timer->tim_queue);
+    if (timer->tim_timer == NULL)
+    {
+	errno = ENOMEM;
+	return -1;
+    }
+
+    timer->tim_func = sevp->sigev_notify_function;
+    timer->tim_arg = sevp->sigev_value.sival_ptr;
+
+    dispatch_set_context(timer->tim_timer, timer);
+    dispatch_source_set_event_handler_f(timer->tim_timer, _timer_handler);
+    dispatch_source_set_cancel_handler_f(timer->tim_timer, _timer_cancel);
+
+    dispatch_resume(timer->tim_timer);
+
+    return 0;
+}
+
+/*
+ * A partial emulation of the POSIX timer_settime function.
+ *
+ * The limitations and differences include:
+ *
+ * - The flags argument is ignored. The supplied new_value is therefore
+ *   always treated as a relative time.
+ * - The old_value argument is ignored.
+ */
+    int
+timer_settime(
+    timer_t timerid,
+    int unused_flags UNUSED,
+    const struct itimerspec *new_value,
+    struct itimerspec *old_value UNUSED)
+{
+    uint64_t first_shot = itime_to_ns(&new_value->it_value);
+
+    if (timerid == NULL)
+	return 0;
+
+    if (first_shot == DISPATCH_TIME_FOREVER)
+    {
+	dispatch_source_set_timer(
+	    timerid->tim_timer, first_shot, first_shot, 0);
+    }
+    else
+    {
+	uint64_t interval = itime_to_ns(&new_value->it_interval);
+
+	dispatch_time_t start = dispatch_time(DISPATCH_TIME_NOW, first_shot);
+	dispatch_source_set_timer(timerid->tim_timer, start, interval, 0);
+    }
+
+    return 0;
+}
+
+/*
+ * An emulation of the POSIX timer_delete function.
+ *
+ * Disabled because it is not currently used, but an implemented provided
+ * for completeness and possible future use.
+ */
+    int
+timer_delete(timer_t timerid)
+{
+    /* Calls _timer_cancel() */
+    if (timerid != NULL)
+	dispatch_source_cancel(timerid->tim_timer);
+
+    return 0;
+}
+
+#endif /* FEAT_RELTIME */
+
+#ifdef FEAT_SOUND
+
+static NSMutableDictionary<NSNumber*, NSSound*> *sounds_list = nil;
+
+/// A delegate for handling when a sound has stopped playing, in
+/// order to clean up the sound and to send a callback.
+@interface SoundDelegate : NSObject<NSSoundDelegate>;
+
+- (id) init:(long) sound_id callback:(soundcb_T*) callback;
+- (void) sound:(NSSound *)sound didFinishPlaying:(BOOL)flag;
+
+@property (readonly) long sound_id;
+@property (readonly) soundcb_T *callback;
+
+@end
+
+@implementation SoundDelegate
+- (id) init:(long) sound_id callback:(soundcb_T*) callback
+{
+    if ([super init])
+    {
+	_sound_id = sound_id;
+	_callback = callback;
+    }
+    return self;
+}
+
+- (void) sound:(NSSound *)sound didFinishPlaying:(BOOL)flag
+{
+    if (sounds_list != nil)
+    {
+	if (_callback)
+	{
+	    call_sound_callback(_callback, _sound_id, flag ? 0 : 1);
+	    delete_sound_callback(_callback);
+	    _callback = NULL;
+	}
+	[sounds_list removeObjectForKey:[NSNumber numberWithLong:_sound_id]];
+    }
+    // Release itself. Do that here instead of earlier because NSSound only
+    // holds weak reference to this object.
+    [self release];
+}
+@end
+
+    void
+process_cfrunloop()
+{
+    if (sounds_list != nil && [sounds_list count] > 0)
+    {
+	// Continually drain the run loop of events. Currently, this
+	// is only used for processing sound callbacks, because
+	// NSSound relies of this runloop to call back to the
+	// delegate.
+	@autoreleasepool
+	{
+	    while (CFRunLoopRunInMode(kCFRunLoopDefaultMode, 0, true)
+		    == kCFRunLoopRunHandledSource)
+		;   // do nothing
+	}
+    }
+}
+
+    bool
+sound_mch_play(const char_u* sound_name, long sound_id, soundcb_T *callback, bool playfile)
+{
+    @autoreleasepool
+    {
+	NSString *sound_name_ns = [[[NSString alloc] initWithUTF8String:(const char*)sound_name] autorelease];
+	NSSound* sound = playfile ?
+	    [[[NSSound alloc] initWithContentsOfFile:sound_name_ns byReference:YES] autorelease] :
+	    [NSSound soundNamed:sound_name_ns];
+	if (!sound)
+	{
+	    return false;
+	}
+
+	if (sounds_list == nil)
+	{
+	    sounds_list = [[NSMutableDictionary<NSNumber*, NSSound*> alloc] init];
+	}
+	sounds_list[[NSNumber numberWithLong:sound_id]] = sound;
+
+	// Make a delegate to handle when the sound stops. No need to call
+	// autorelease because NSSound only holds a weak reference to it.
+	SoundDelegate *delegate = [[SoundDelegate alloc] init:sound_id callback:callback];
+
+	[sound setDelegate:delegate];
+	[sound play];
+    }
+    return true;
+}
+
+    void
+sound_mch_stop(long sound_id)
+{
+    @autoreleasepool
+    {
+	NSSound *sound = sounds_list[[NSNumber numberWithLong:sound_id]];
+	if (sound != nil)
+	{
+	    // Stop the sound. No need to release it because the delegate will do
+	    // it for us.
+	    [sound stop];
+	}
+    }
+}
+
+    void
+sound_mch_clear()
+{
+    if (sounds_list != nil)
+    {
+	@autoreleasepool
+	{
+	    for (NSSound *sound in [sounds_list allValues])
+	    {
+		[sound stop];
+	    }
+	    [sounds_list release];
+	    sounds_list = nil;
+	}
+    }
+}
+
+    void
+sound_mch_free()
+{
+    sound_mch_clear();
+}
+
+#endif // FEAT_SOUND
+
+/* Lift the compiler warning suppression. */
+#if defined(__clang__) && defined(__STRICT_ANSI__)
+# pragma clang diagnostic pop
+# pragma clang diagnostic pop
+#endif