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/* NeXT/Open/GNUstep / MacOSX communication module.
Glenn Morris's avatar
Glenn Morris committed
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   Copyright (C) 1989, 1993, 1994, 2005, 2006, 2008, 2009
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     Free Software Foundation, Inc.
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This file is part of GNU Emacs.

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GNU Emacs is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
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GNU Emacs is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
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along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
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/*
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Originally by Carl Edman
Updated by Christian Limpach (chris@nice.ch)
OpenStep/Rhapsody port by Scott Bender (sbender@harmony-ds.com)
MacOSX/Aqua port by Christophe de Dinechin (descubes@earthlink.net)
GNUstep port and post-20 update by Adrian Robert (arobert@cogsci.ucsd.edu)
*/

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/* This should be the first include, as it may set up #defines affecting
   interpretation of even the system includes. */
#include "config.h"

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#include <math.h>
#include <sys/types.h>
#include <time.h>
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#include <signal.h>
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#include <unistd.h>

#include "lisp.h"
#include "blockinput.h"
#include "sysselect.h"
#include "nsterm.h"
#include "systime.h"
#include "character.h"
#include "fontset.h"
#include "composite.h"
#include "ccl.h"

#include "termhooks.h"
#include "termopts.h"
#include "termchar.h"

#include "window.h"
#include "keyboard.h"

#include "font.h"

/* call tracing */
#if 0
int term_trace_num = 0;
#define NSTRACE(x)        fprintf (stderr, "%s:%d: [%d] " #x "\n",         \
                                __FILE__, __LINE__, ++term_trace_num)
#else
#define NSTRACE(x)
#endif


/* ==========================================================================

    Local declarations

   ========================================================================== */

/* Convert a symbol indexed with an NSxxx value to a value as defined
   in keyboard.c (lispy_function_key). I hope this is a correct way
   of doing things... */
static unsigned convert_ns_to_X_keysym[] =
{
  NSHomeFunctionKey,            0x50,
  NSLeftArrowFunctionKey,       0x51,
  NSUpArrowFunctionKey,         0x52,
  NSRightArrowFunctionKey,      0x53,
  NSDownArrowFunctionKey,       0x54,
  NSPageUpFunctionKey,          0x55,
  NSPageDownFunctionKey,        0x56,
  NSEndFunctionKey,             0x57,
  NSBeginFunctionKey,           0x58,
  NSSelectFunctionKey,          0x60,
  NSPrintFunctionKey,           0x61,
  NSExecuteFunctionKey,         0x62,
  NSInsertFunctionKey,          0x63,
  NSUndoFunctionKey,            0x65,
  NSRedoFunctionKey,            0x66,
  NSMenuFunctionKey,            0x67,
  NSFindFunctionKey,            0x68,
  NSHelpFunctionKey,            0x6A,
  NSBreakFunctionKey,           0x6B,

  NSF1FunctionKey,              0xBE,
  NSF2FunctionKey,              0xBF,
  NSF3FunctionKey,              0xC0,
  NSF4FunctionKey,              0xC1,
  NSF5FunctionKey,              0xC2,
  NSF6FunctionKey,              0xC3,
  NSF7FunctionKey,              0xC4,
  NSF8FunctionKey,              0xC5,
  NSF9FunctionKey,              0xC6,
  NSF10FunctionKey,             0xC7,
  NSF11FunctionKey,             0xC8,
  NSF12FunctionKey,             0xC9,
  NSF13FunctionKey,             0xCA,
  NSF14FunctionKey,             0xCB,
  NSF15FunctionKey,             0xCC,
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  NSF16FunctionKey,             0xCD,
  NSF17FunctionKey,             0xCE,
  NSF18FunctionKey,             0xCF,
  NSF19FunctionKey,             0xD0,
  NSF20FunctionKey,             0xD1,
  NSF21FunctionKey,             0xD2,
  NSF22FunctionKey,             0xD3,
  NSF23FunctionKey,             0xD4,
  NSF24FunctionKey,             0xD5,
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  NSBackspaceCharacter,         0x08,  /* 8: Not on some KBs. */
  NSDeleteCharacter,            0xFF,  /* 127: Big 'delete' key upper right. */
  NSDeleteFunctionKey,          0x9F,  /* 63272: Del forw key off main array. */

  NSTabCharacter,		0x09,
  0x19,				0x09,  /* left tab->regular since pass shift */
  NSCarriageReturnCharacter,	0x0D,
  NSNewlineCharacter,		0x0D,
  NSEnterCharacter,		0x8D,

  0x1B,				0x1B   /* escape */
};


/* Lisp communications */
Lisp_Object ns_input_file, ns_input_font, ns_input_fontsize, ns_input_line;
Lisp_Object ns_input_color, ns_input_text, ns_working_text;
Lisp_Object ns_input_spi_name, ns_input_spi_arg;
Lisp_Object Vx_toolkit_scroll_bars;
static Lisp_Object Qmodifier_value;
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/* TODO: unsure why these defined in term files, anyway we need in keymap.c */
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Lisp_Object Qalt, Qcontrol, Qhyper, Qmeta, Qsuper;
extern Lisp_Object Qcursor_color, Qcursor_type, Qns;


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/* Some preferences equivalent to those set by X resources under X are
   managed through the OpenStep defaults system. We depart from X
   behavior and refuse to read defaults when started under these
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   options. */

/* Set in emacs.c. */
char ns_no_defaults;
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/* Specifies which emacs modifier should be generated when NS receives
   the Alternate modifer.  May be Qnone or any of the modifier lisp symbols. */
Lisp_Object ns_alternate_modifier;

/* Specifies which emacs modifier should be generated when NS receives
   the Command modifer.  May be any of the modifier lisp symbols. */
Lisp_Object ns_command_modifier;

/* Specifies which emacs modifier should be generated when NS receives
   the Control modifer.  May be any of the modifier lisp symbols. */
Lisp_Object ns_control_modifier;

/* Specifies which emacs modifier should be generated when NS receives
   the Function modifer (laptops).  May be any of the modifier lisp symbols. */
Lisp_Object ns_function_modifier;

/* Control via default 'GSFontAntiAlias' on OS X and GNUstep. */
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Lisp_Object ns_antialias_text;
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/* On OS X picks up the default NSGlobalDomain AppleAntiAliasingThreshold,
   the maximum font size to NOT antialias.  On GNUstep there is currently
   no way to control this behavior. */
float ns_antialias_threshold;

/* Controls use of an undocumented CG function to do Quickdraw-style font
   smoothing (less heavy) instead of regular Quartz smoothing. */
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Lisp_Object ns_use_qd_smoothing;
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/* Used to pick up AppleHighlightColor on OS X */
NSString *ns_selection_color;

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/* Confirm on exit. */
Lisp_Object ns_confirm_quit;
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NSArray *ns_send_types =0, *ns_return_types =0, *ns_drag_types =0;

/* Display variables */
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struct ns_display_info *x_display_list; /* Chain of existing displays */
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Lisp_Object ns_display_name_list;
long context_menu_value = 0;

/* display update */
NSPoint last_mouse_motion_position;
static NSRect last_mouse_glyph;
static unsigned long last_mouse_movement_time = 0;
static Lisp_Object last_mouse_motion_frame;
static EmacsScroller *last_mouse_scroll_bar = nil;
static struct frame *ns_updating_frame;
static NSView *focus_view = NULL;
static int ns_window_num =0;
static NSRect uRect;
static BOOL gsaved = NO;
BOOL ns_in_resize = NO;
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static BOOL ns_fake_keydown = NO;
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int ns_tmp_flags; /* FIXME */
struct nsfont_info *ns_tmp_font; /* FIXME */
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/*static int debug_lock = 0; */

#ifdef NS_IMPL_COCOA
/* This undocumented Quartz function controls how fonts are anti-aliased.
   (Found from code in Mac wxWindows impl, discovered by running `nm' on
   the "QD" framework.)
   Mode 0 is normal anti-aliasing, mode 1 is no anti-aliasing, and mode 2 is
   4-bit pixel-aligned anti-aliasing (the old QuickDraw standard). */
extern void CGContextSetFontRenderingMode (CGContextRef cg, int v);
#endif


/* event loop */
static BOOL send_appdefined = YES;
static NSEvent *last_appdefined_event = 0;
static NSTimer *timed_entry = 0;
static NSTimer *fd_entry = nil;
static NSTimer *scroll_repeat_entry = nil;
static fd_set select_readfds, t_readfds;
static struct timeval select_timeout;
static int select_nfds;
static NSAutoreleasePool *outerpool;
static struct input_event *emacs_event = NULL;
static struct input_event *q_event_ptr = NULL;
static int n_emacs_events_pending = 0;
static NSMutableArray *ns_pending_files, *ns_pending_service_names,
  *ns_pending_service_args;
static BOOL inNsSelect = 0;

/* Convert modifiers in a NeXTSTEP event to emacs style modifiers.  */
#define NS_FUNCTION_KEY_MASK 0x800000
#define EV_MODIFIERS(e)                               \
    ((([e modifierFlags] & NSHelpKeyMask) ?           \
           hyper_modifier : 0)                        \
     | (([e modifierFlags] & NSAlternateKeyMask) ?    \
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           parse_solitary_modifier (ns_alternate_modifier) : 0)   \
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     | (([e modifierFlags] & NSShiftKeyMask) ?        \
           shift_modifier : 0)                        \
     | (([e modifierFlags] & NSControlKeyMask) ?      \
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           parse_solitary_modifier (ns_control_modifier) : 0)     \
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     | (([e modifierFlags] & NS_FUNCTION_KEY_MASK) ?  \
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           parse_solitary_modifier (ns_function_modifier) : 0)    \
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     | (([e modifierFlags] & NSCommandKeyMask) ?      \
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           parse_solitary_modifier (ns_command_modifier):0))
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#define EV_UDMODIFIERS(e)                                      \
    ((([e type] == NSLeftMouseDown) ? down_modifier : 0)       \
     | (([e type] == NSRightMouseDown) ? down_modifier : 0)    \
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     | (([e type] == NSOtherMouseDown) ? down_modifier : 0)    \
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     | (([e type] == NSLeftMouseDragged) ? down_modifier : 0)  \
     | (([e type] == NSRightMouseDragged) ? down_modifier : 0) \
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     | (([e type] == NSOtherMouseDragged) ? down_modifier : 0) \
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     | (([e type] == NSLeftMouseUp)   ? up_modifier   : 0)     \
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     | (([e type] == NSRightMouseUp)   ? up_modifier   : 0)    \
     | (([e type] == NSOtherMouseUp)   ? up_modifier   : 0))
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#define EV_BUTTON(e)                                                         \
    ((([e type] == NSLeftMouseDown) || ([e type] == NSLeftMouseUp)) ? 0 :    \
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      (([e type] == NSRightMouseDown) || ([e type] == NSRightMouseUp)) ? 2 : \
     [e buttonNumber] - 1)
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/* Convert the time field to a timestamp in milliseconds. */
#ifdef NS_IMPL_GNUSTEP
/* Apple says timestamp is in seconds, but GNUstep seems to be returning msec */
#define EV_TIMESTAMP(e) ([e timestamp])
#else
#define EV_TIMESTAMP(e) ([e timestamp] * 1000)
#endif /* not gnustep */

/* This is a piece of code which is common to all the event handling
   methods.  Maybe it should even be a function.  */
#define EV_TRAILER(e)                                         \
  {                                                           \
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  XSETFRAME (emacs_event->frame_or_window, emacsframe);       \
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  if (e) emacs_event->timestamp = EV_TIMESTAMP (e);           \
  n_emacs_events_pending++;                                   \
  kbd_buffer_store_event_hold (emacs_event, q_event_ptr);     \
  EVENT_INIT (*emacs_event);                                  \
  ns_send_appdefined (-1);                                    \
  }

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void x_set_cursor_type (struct frame *, Lisp_Object, Lisp_Object);

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/* TODO: get rid of need for these forward declarations */
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static void ns_condemn_scroll_bars (struct frame *f);
static void ns_judge_scroll_bars (struct frame *f);
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void x_set_frame_alpha (struct frame *f);
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/* unused variables needed for compatibility reasons */
int x_use_underline_position_properties, x_underline_at_descent_line;
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/* FIXME: figure out what to do with underline_minimum_offset. */
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/* ==========================================================================

    Utilities

   ========================================================================== */


static Lisp_Object
append2 (Lisp_Object list, Lisp_Object item)
/* --------------------------------------------------------------------------
   Utility to append to a list
   -------------------------------------------------------------------------- */
{
  Lisp_Object array[2];
  array[0] = list;
  array[1] = Fcons (item, Qnil);
  return Fnconc (2, &array[0]);
}


void
ns_init_paths ()
/* --------------------------------------------------------------------------
   Used to allow emacs to find its resources under Emacs.app
   Called from emacs.c at startup.
   -------------------------------------------------------------------------- */
{
  NSBundle *bundle = [NSBundle mainBundle];
  NSString *binDir = [bundle bundlePath], *resourceDir = [bundle resourcePath];
  NSString *resourcePath, *resourcePaths;
  NSRange range;
  BOOL onWindows = NO; /* how do I determine this? */
  NSString *pathSeparator = onWindows ? @";" : @":";
  NSFileManager *fileManager = [NSFileManager defaultManager];
  BOOL isDir;
/*NSLog (@"ns_init_paths: '%@'\n%@\n", [[NSBundle mainBundle] bundlePath], [[NSBundle mainBundle] resourcePath]); */

  /* get bindir from base */
  range = [resourceDir rangeOfString: @"Contents"];
  if (range.location != NSNotFound)
    {
      binDir = [binDir stringByAppendingPathComponent: @"Contents"];
#ifdef NS_IMPL_COCOA
      binDir = [binDir stringByAppendingPathComponent: @"MacOS"];
#endif
    }

  /* the following based on Andrew Choi's init_mac_osx_environment () */
  if (!getenv ("EMACSLOADPATH"))
    {
      NSArray *paths = [resourceDir stringsByAppendingPaths:
                                  [NSArray arrayWithObjects:
                                         @"site-lisp", @"lisp", @"leim", nil]];
      NSEnumerator *pathEnum = [paths objectEnumerator];
      resourcePaths = @"";
      while (resourcePath = [pathEnum nextObject])
        {
          if ([fileManager fileExistsAtPath: resourcePath isDirectory: &isDir])
            if (isDir)
              {
                if ([resourcePaths length] > 0)
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                  resourcePaths
		    = [resourcePaths stringByAppendingString: pathSeparator];
                resourcePaths
		  = [resourcePaths stringByAppendingString: resourcePath];
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              }
        }
      if ([resourcePaths length] > 0)
        setenv ("EMACSLOADPATH", [resourcePaths UTF8String], 1);
/*NSLog (@"loadPath: '%s'\n", resourcePaths); */
    }

  if (!getenv ("EMACSPATH"))
    {
      NSArray *paths = [binDir stringsByAppendingPaths:
                                  [NSArray arrayWithObjects: @"bin",
                                                             @"lib-exec", nil]];
      NSEnumerator *pathEnum = [paths objectEnumerator];
      resourcePaths = @"";
      while (resourcePath = [pathEnum nextObject])
        {
          if ([fileManager fileExistsAtPath: resourcePath isDirectory: &isDir])
            if (isDir)
              {
                if ([resourcePaths length] > 0)
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                  resourcePaths
		    = [resourcePaths stringByAppendingString: pathSeparator];
                resourcePaths
		  = [resourcePaths stringByAppendingString: resourcePath];
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              }
        }
      if ([resourcePaths length] > 0)
        setenv ("EMACSPATH", [resourcePaths UTF8String], 1);
    }

  resourcePath = [resourceDir stringByAppendingPathComponent: @"etc"];
  if ([fileManager fileExistsAtPath: resourcePath isDirectory: &isDir])
    {
      if (isDir)
        {
          if (!getenv ("EMACSDATA"))
            setenv ("EMACSDATA", [resourcePath UTF8String], 1);
          if (!getenv ("EMACSDOC"))
            setenv ("EMACSDOC", [resourcePath UTF8String], 1);
        }
    }

  if (!getenv ("INFOPATH"))
    {
      resourcePath = [resourceDir stringByAppendingPathComponent: @"info"];
      if ([fileManager fileExistsAtPath: resourcePath isDirectory: &isDir])
        if (isDir)
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          setenv ("INFOPATH", [[resourcePath stringByAppendingString: @":"]
                                             UTF8String], 1);
      /* Note, extra colon needed to cause merge w/later user additions. */
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    }
}


static int
timeval_subtract (struct timeval *result, struct timeval x, struct timeval y)
/* --------------------------------------------------------------------------
   Subtract the `struct timeval' values X and Y, storing the result in RESULT.
   Return 1 if the difference is negative, otherwise 0.
   -------------------------------------------------------------------------- */
{
  /* Perform the carry for the later subtraction by updating y.
     This is safer because on some systems
     the tv_sec member is unsigned.  */
  if (x.tv_usec < y.tv_usec)
    {
      int nsec = (y.tv_usec - x.tv_usec) / 1000000 + 1;
      y.tv_usec -= 1000000 * nsec;
      y.tv_sec += nsec;
    }
  if (x.tv_usec - y.tv_usec > 1000000)
    {
      int nsec = (y.tv_usec - x.tv_usec) / 1000000;
      y.tv_usec += 1000000 * nsec;
      y.tv_sec -= nsec;
    }

  /* Compute the time remaining to wait.  tv_usec is certainly positive.  */
  result->tv_sec = x.tv_sec - y.tv_sec;
  result->tv_usec = x.tv_usec - y.tv_usec;

  /* Return indication of whether the result should be considered negative.  */
  return x.tv_sec < y.tv_sec;
}

static void
ns_timeout (int usecs)
/* --------------------------------------------------------------------------
     Blocking timer utility used by ns_ring_bell
   -------------------------------------------------------------------------- */
{
  struct timeval wakeup;

  EMACS_GET_TIME (wakeup);

  /* Compute time to wait until, propagating carry from usecs.  */
  wakeup.tv_usec += usecs;
  wakeup.tv_sec += (wakeup.tv_usec / 1000000);
  wakeup.tv_usec %= 1000000;

  /* Keep waiting until past the time wakeup.  */
  while (1)
    {
      struct timeval timeout;

      EMACS_GET_TIME (timeout);

      /* In effect, timeout = wakeup - timeout.
	 Break if result would be negative.  */
      if (timeval_subtract (&timeout, wakeup, timeout))
	break;

      /* Try to wait that long--but we might wake up sooner.  */
      select (0, NULL, NULL, NULL, &timeout);
    }
}


void
ns_release_object (void *obj)
/* --------------------------------------------------------------------------
    Release an object (callable from C)
   -------------------------------------------------------------------------- */
{
    [(id)obj release];
}


void
ns_retain_object (void *obj)
/* --------------------------------------------------------------------------
    Retain an object (callable from C)
   -------------------------------------------------------------------------- */
{
    [(id)obj retain];
}


void *
ns_alloc_autorelease_pool ()
/* --------------------------------------------------------------------------
     Allocate a pool for temporary objects (callable from C)
   -------------------------------------------------------------------------- */
{
  return [[NSAutoreleasePool alloc] init];
}


void
ns_release_autorelease_pool (void *pool)
/* --------------------------------------------------------------------------
     Free a pool and temporary objects it refers to (callable from C)
   -------------------------------------------------------------------------- */
{
  ns_release_object (pool);
}



/* ==========================================================================

    Focus (clipping) and screen update

   ========================================================================== */

static NSRect
ns_resize_handle_rect (NSWindow *window)
{
  NSRect r = [window frame];
  r.origin.x = r.size.width - RESIZE_HANDLE_SIZE;
  r.origin.y = 0;
  r.size.width = r.size.height = RESIZE_HANDLE_SIZE;
  return r;
}


static void
ns_update_begin (struct frame *f)
/* --------------------------------------------------------------------------
   Prepare for a grouped sequence of drawing calls
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   external (RIF) call; whole frame, called before update_window_begin
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   -------------------------------------------------------------------------- */
{
  NSView *view = FRAME_NS_VIEW (f);
  NSTRACE (ns_update_begin);

  ns_updating_frame = f;
  [view lockFocus];

#ifdef NS_IMPL_GNUSTEP
  uRect = NSMakeRect (0, 0, 0, 0);
#endif
}


static void
ns_update_window_begin (struct window *w)
/* --------------------------------------------------------------------------
   Prepare for a grouped sequence of drawing calls
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   external (RIF) call; for one window, called after update_begin
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   -------------------------------------------------------------------------- */
{
  struct frame *f = XFRAME (WINDOW_FRAME (w));
  struct ns_display_info *dpyinfo = FRAME_NS_DISPLAY_INFO (f);
  NSTRACE (ns_update_window_begin);

  updated_window = w;
  set_output_cursor (&w->cursor);

  BLOCK_INPUT;

  if (f == dpyinfo->mouse_face_mouse_frame)
    {
      /* Don't do highlighting for mouse motion during the update.  */
      dpyinfo->mouse_face_defer = 1;

        /* If the frame needs to be redrawn,
           simply forget about any prior mouse highlighting.  */
      if (FRAME_GARBAGED_P (f))
        dpyinfo->mouse_face_window = Qnil;

      /* (further code for mouse faces ifdef'd out in other terms elided) */
    }

  UNBLOCK_INPUT;
}


static void
ns_update_window_end (struct window *w, int cursor_on_p,
                      int mouse_face_overwritten_p)
/* --------------------------------------------------------------------------
   Finished a grouped sequence of drawing calls
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   external (RIF) call; for one window called before update_end
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   -------------------------------------------------------------------------- */
{
  struct ns_display_info *dpyinfo = FRAME_NS_DISPLAY_INFO (XFRAME (w->frame));

  /* note: this fn is nearly identical in all terms */
  if (!w->pseudo_window_p)
    {
      BLOCK_INPUT;

      if (cursor_on_p)
	display_and_set_cursor (w, 1,
                                output_cursor.hpos, output_cursor.vpos,
				output_cursor.x, output_cursor.y);

      if (draw_window_fringes (w, 1))
	x_draw_vertical_border (w);

      UNBLOCK_INPUT;
    }

  /* If a row with mouse-face was overwritten, arrange for
     frame_up_to_date to redisplay the mouse highlight.  */
  if (mouse_face_overwritten_p)
    {
      dpyinfo->mouse_face_beg_row = dpyinfo->mouse_face_beg_col = -1;
      dpyinfo->mouse_face_end_row = dpyinfo->mouse_face_end_col = -1;
      dpyinfo->mouse_face_window = Qnil;
    }

  updated_window = NULL;
  NSTRACE (update_window_end);
}


static void
ns_update_end (struct frame *f)
/* --------------------------------------------------------------------------
   Finished a grouped sequence of drawing calls
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   external (RIF) call; for whole frame, called after update_window_end
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   -------------------------------------------------------------------------- */
{
  NSView *view = FRAME_NS_VIEW (f);

/*   if (f == FRAME_NS_DISPLAY_INFO (f)->mouse_face_mouse_frame) */
    FRAME_NS_DISPLAY_INFO (f)->mouse_face_defer = 0;

  BLOCK_INPUT;

#ifdef NS_IMPL_GNUSTEP
  /* trigger flush only in the rectangle we tracked as being drawn */
  [view unlockFocusNeedsFlush: NO];
/*fprintf (stderr, " (%.0f, %.0f : %.0f x %.0f)", uRect.origin.x, uRect.origin.y, uRect.size.width, uRect.size.height); */
  [view lockFocusInRect: uRect];
#endif

  [view unlockFocus];
  [[view window] flushWindow];

  UNBLOCK_INPUT;
  ns_updating_frame = NULL;
  NSTRACE (ns_update_end);
}


static void
ns_flush (struct frame *f)
/* --------------------------------------------------------------------------
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   external (RIF) call
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   NS impl is no-op since currently we flush in ns_update_end and elsewhere
   -------------------------------------------------------------------------- */
{
    NSTRACE (ns_flush);
}


static void
ns_focus (struct frame *f, NSRect *r, int n)
/* --------------------------------------------------------------------------
   Internal: Focus on given frame.  During small local updates this is used to
     draw, however during large updates, ns_update_begin and ns_update_end are
     called to wrap the whole thing, in which case these calls are stubbed out.
     Except, on GNUstep, we accumulate the rectangle being drawn into, because
     the back end won't do this automatically, and will just end up flushing
     the entire window.
   -------------------------------------------------------------------------- */
{
690
//  NSTRACE (ns_focus);
691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743
#ifdef NS_IMPL_GNUSTEP
  NSRect u;
    if (n == 2)
      u = NSUnionRect (r[0], r[1]);
    else if (r)
      u = *r;
#endif
/* static int c =0;
   fprintf (stderr, "focus: %d", c++);
   if (r) fprintf (stderr, " (%.0f, %.0f : %.0f x %.0f)", r->origin.x, r->origin.y, r->size.width, r->size.height);
   fprintf (stderr, "\n"); */

  if (f != ns_updating_frame)
    {
      NSView *view = FRAME_NS_VIEW (f);
      if (view != focus_view)
        {
          if (focus_view != NULL)
            {
              [focus_view unlockFocus];
              [[focus_view window] flushWindow];
/*debug_lock--; */
            }

          if (view)
#ifdef NS_IMPL_GNUSTEP
            r ? [view lockFocusInRect: u] : [view lockFocus];
#else
            [view lockFocus];
#endif
          focus_view = view;
/*if (view) debug_lock++; */
        }
#ifdef NS_IMPL_GNUSTEP
      else
        {
          /* more than one rect being drawn into */
          if (view && r)
            {
              [view unlockFocus]; /* add prev rect to redraw list */
              [view lockFocusInRect: u]; /* focus for draw in new rect */
            }
        }
#endif
    }
#ifdef NS_IMPL_GNUSTEP
  else
    {
      /* in batch mode, but in GNUstep must still track rectangles explicitly */
      uRect = (r ? NSUnionRect (uRect, u) : [FRAME_NS_VIEW (f) visibleRect]);
    }
#endif

744
  /* clipping */
745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762
  if (r)
    {
      [[NSGraphicsContext currentContext] saveGraphicsState];
      if (n == 2)
        NSRectClipList (r, 2);
      else
        NSRectClip (*r);
      gsaved = YES;
    }
}


static void
ns_unfocus (struct frame *f)
/* --------------------------------------------------------------------------
     Internal: Remove focus on given frame
   -------------------------------------------------------------------------- */
{
763
//  NSTRACE (ns_unfocus);
764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784

  if (gsaved)
    {
      [[NSGraphicsContext currentContext] restoreGraphicsState];
      gsaved = NO;
    }

  if (f != ns_updating_frame)
    {
      if (focus_view != NULL)
        {
          [focus_view unlockFocus];
          [[focus_view window] flushWindow];
          focus_view = NULL;
/*debug_lock--; */
        }
    }
}


static void
785
ns_clip_to_row (struct window *w, struct glyph_row *row, int area, BOOL gc)
786
/* --------------------------------------------------------------------------
787
     Internal (but parallels other terms): Focus drawing on given row
788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845
   -------------------------------------------------------------------------- */
{
  struct frame *f = XFRAME (WINDOW_FRAME (w));
  NSRect clip_rect;
  int window_x, window_y, window_width;

  window_box (w, area, &window_x, &window_y, &window_width, 0);

  clip_rect.origin.x = window_x - FRAME_INTERNAL_BORDER_WIDTH (f);
  clip_rect.origin.y = WINDOW_TO_FRAME_PIXEL_Y (w, max (0, row->y));
  clip_rect.origin.y = max (clip_rect.origin.y, window_y);
  clip_rect.size.width = window_width + 2 * FRAME_INTERNAL_BORDER_WIDTH (f);
  clip_rect.size.height = row->visible_height;

  /* allow a full-height row at the top when requested
     (used to draw fringe all the way through internal border area) */
  if (gc && clip_rect.origin.y < 5)
    {
      clip_rect.origin.y -= FRAME_INTERNAL_BORDER_WIDTH (f);
      clip_rect.size.height += FRAME_INTERNAL_BORDER_WIDTH (f);
    }

  /* likewise at bottom */
  if (gc &&
      FRAME_PIXEL_HEIGHT (f) - (clip_rect.origin.y + clip_rect.size.height) < 5)
    clip_rect.size.height += FRAME_INTERNAL_BORDER_WIDTH (f);

  ns_focus (f, &clip_rect, 1);
}


static void
ns_ring_bell ()
/* --------------------------------------------------------------------------
     "Beep" routine
   -------------------------------------------------------------------------- */
{
  NSTRACE (ns_ring_bell);
  if (visible_bell)
    {
      NSAutoreleasePool *pool;
      struct frame *frame = SELECTED_FRAME ();
      NSView *view;

      BLOCK_INPUT;
      pool = [[NSAutoreleasePool alloc] init];

      view = FRAME_NS_VIEW (frame);
      if (view != nil)
        {
          NSRect r, surr;
          NSPoint dim = NSMakePoint (128, 128);

          r = [view bounds];
          r.origin.x += (r.size.width - dim.x) / 2;
          r.origin.y += (r.size.height - dim.y) / 2;
          r.size.width = dim.x;
          r.size.height = dim.y;
846
          surr = NSInsetRect (r, -2, -2);
847
          ns_focus (frame, &surr, 1);
848
          [[view window] cacheImageInRect: [view convertRect: surr toView:nil]];
849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899
          [ns_lookup_indexed_color (NS_FACE_FOREGROUND
                                      (FRAME_DEFAULT_FACE (frame)), frame) set];
          NSRectFill (r);
          [[view window] flushWindow];
          ns_timeout (150000);
          [[view window] restoreCachedImage];
          [[view window] flushWindow];
          ns_unfocus (frame);
        }
      [pool release];
      UNBLOCK_INPUT;
    }
  else
    {
      NSBeep ();
    }
}


static void
ns_reset_terminal_modes (struct terminal *terminal)
/*  Externally called as hook */
{
  NSTRACE (ns_reset_terminal_modes);
}

static void
ns_set_terminal_modes (struct terminal *terminal)
/*  Externally called as hook */
{
  NSTRACE (ns_set_terminal_modes);
}



/* ==========================================================================

    Frame / window manager related functions

   ========================================================================== */


static void
ns_raise_frame (struct frame *f)
/* --------------------------------------------------------------------------
     Bring window to foreground and make it active
   -------------------------------------------------------------------------- */
{
  NSView *view = FRAME_NS_VIEW (f);
  check_ns ();
  BLOCK_INPUT;
900 901 902 903 904
  FRAME_SAMPLE_VISIBILITY (f);
  if (FRAME_VISIBLE_P (f))
    {
      [[view window] makeKeyAndOrderFront: NSApp];
    }
905 906 907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 939 940 941 942 943 944
  UNBLOCK_INPUT;
}


static void
ns_lower_frame (struct frame *f)
/* --------------------------------------------------------------------------
     Send window to back
   -------------------------------------------------------------------------- */
{
  NSView *view = FRAME_NS_VIEW (f);
  check_ns ();
  BLOCK_INPUT;
  [[view window] orderBack: NSApp];
  UNBLOCK_INPUT;
}


static void
ns_frame_raise_lower (struct frame *f, int raise)
/* --------------------------------------------------------------------------
     External (hook)
   -------------------------------------------------------------------------- */
{
  NSTRACE (ns_frame_raise_lower);

  if (raise)
    ns_raise_frame (f);
  else
    ns_lower_frame (f);
}


static void
ns_frame_rehighlight (struct frame *frame)
/* --------------------------------------------------------------------------
     External (hook): called on things like window switching within frame
   -------------------------------------------------------------------------- */
{
  struct ns_display_info *dpyinfo = FRAME_NS_DISPLAY_INFO (frame);
945
  struct frame *old_highlight = dpyinfo->x_highlight_frame;
946 947

  NSTRACE (ns_frame_rehighlight);
948
  if (dpyinfo->x_focus_frame)
949
    {
950 951 952 953 954
      dpyinfo->x_highlight_frame
	= (FRAMEP (FRAME_FOCUS_FRAME (dpyinfo->x_focus_frame))
           ? XFRAME (FRAME_FOCUS_FRAME (dpyinfo->x_focus_frame))
           : dpyinfo->x_focus_frame);
      if (!FRAME_LIVE_P (dpyinfo->x_highlight_frame))
955
        {
956 957
          FRAME_FOCUS_FRAME (dpyinfo->x_focus_frame) = Qnil;
          dpyinfo->x_highlight_frame = dpyinfo->x_focus_frame;
958 959 960
        }
    }
  else
961
      dpyinfo->x_highlight_frame = 0;
962

963 964
  if (dpyinfo->x_highlight_frame &&
         dpyinfo->x_highlight_frame != old_highlight)
965 966
    {
      if (old_highlight)
967
	{
968
          x_update_cursor (old_highlight, 1);
969 970
	  x_set_frame_alpha (old_highlight);
	}
971
      if (dpyinfo->x_highlight_frame)
972
	{
973
          x_update_cursor (dpyinfo->x_highlight_frame, 1);
974 975
          x_set_frame_alpha (dpyinfo->x_highlight_frame);
	}
976 977 978 979 980 981 982 983 984 985 986
    }
}


void
x_make_frame_visible (struct frame *f)
/* --------------------------------------------------------------------------
     External: Show the window (X11 semantics)
   -------------------------------------------------------------------------- */
{
  NSTRACE (x_make_frame_visible);
987
  /* XXX: at some points in past this was not needed, as the only place that
988 989 990
     called this (frame.c:Fraise_frame ()) also called raise_lower;
     if this ends up the case again, comment this out again. */
  if (!FRAME_VISIBLE_P (f))
991 992 993 994
    {
      f->async_visible = 1;
      ns_raise_frame (f);
    }
995 996 997 998 999 1000 1001 1002 1003 1004 1005 1006 1007
}


void
x_make_frame_invisible (struct frame *f)
/* --------------------------------------------------------------------------
     External: Hide the window (X11 semantics)
   -------------------------------------------------------------------------- */
{
  NSView * view = FRAME_NS_VIEW (f);
  NSTRACE (x_make_frame_invisible);
  check_ns ();
  [[view window] orderOut: NSApp];
1008 1009
  f->async_visible = 0;
  f->async_iconified = 0;
1010 1011 1012 1013 1014 1015 1016 1017 1018 1019 1020 1021 1022 1023
}


void
x_iconify_frame (struct frame *f)
/* --------------------------------------------------------------------------
     External: Iconify window
   -------------------------------------------------------------------------- */
{
  NSView * view = FRAME_NS_VIEW (f);
  struct ns_display_info *dpyinfo = FRAME_NS_DISPLAY_INFO (f);
  NSTRACE (x_iconify_frame);
  check_ns ();

1024 1025
  if (dpyinfo->x_highlight_frame == f)
    dpyinfo->x_highlight_frame = 0;
1026 1027 1028 1029 1030 1031 1032 1033 1034 1035 1036 1037 1038 1039 1040 1041 1042 1043 1044 1045 1046 1047 1048 1049 1050 1051 1052 1053 1054 1055 1056 1057 1058 1059 1060 1061 1062

  if ([[view window] windowNumber] <= 0)
    {
      /* the window is still deferred.  Make it very small, bring it
         on screen and order it out. */
      NSRect s = { { 100, 100}, {0, 0} };
      NSRect t;
      t = [[view window] frame];
      [[view window] setFrame: s display: NO];
      [[view window] orderBack: NSApp];
      [[view window] orderOut: NSApp];
      [[view window] setFrame: t display: NO];
    }
  [[view window] miniaturize: NSApp];
}


void
x_destroy_window (struct frame *f)
/* --------------------------------------------------------------------------
     External: Delete the window
   -------------------------------------------------------------------------- */
{
  NSView *view = FRAME_NS_VIEW (f);
  struct ns_display_info *dpyinfo = FRAME_NS_DISPLAY_INFO (f);
  NSTRACE (x_destroy_window);
  check_ns ();

  [(EmacsView *)view setWindowClosing: YES]; /* may not have been informed */

  BLOCK_INPUT;

  free_frame_menubar (f);

  if (FRAME_FACE_CACHE (f))
    free_frame_faces (f);

1063 1064 1065 1066
  if (f == dpyinfo->x_focus_frame)
    dpyinfo->x_focus_frame = 0;
  if (f == dpyinfo->x_highlight_frame)
    dpyinfo->x_highlight_frame = 0;
1067 1068 1069 1070 1071 1072 1073 1074 1075 1076 1077 1078 1079 1080 1081 1082 1083 1084 1085 1086 1087 1088 1089 1090 1091 1092 1093 1094 1095 1096 1097 1098 1099 1100 1101 1102 1103 1104 1105 1106 1107 1108 1109 1110 1111 1112 1113 1114 1115 1116 1117 1118 1119 1120 1121 1122 1123 1124 1125 1126 1127 1128 1129 1130 1131 1132 1133 1134 1135 1136 1137 1138 1139 1140 1141 1142 1143 1144 1145 1146 1147 1148 1149 1150 1151 1152 1153 1154 1155 1156 1157 1158 1159
  if (f == dpyinfo->mouse_face_mouse_frame)
    {
      dpyinfo->mouse_face_beg_row = dpyinfo->mouse_face_beg_col = -1;
      dpyinfo->mouse_face_end_row = dpyinfo->mouse_face_end_col = -1;
      dpyinfo->mouse_face_window = Qnil;
      dpyinfo->mouse_face_deferred_gc = 0;
      dpyinfo->mouse_face_mouse_frame = 0;
    }

  xfree (f->output_data.ns);

  [[view window] close];
  [view release];

  ns_window_num--;
  UNBLOCK_INPUT;
}


void
x_set_offset (struct frame *f, int xoff, int yoff, int change_grav)
/* --------------------------------------------------------------------------
     External: Position the window
   -------------------------------------------------------------------------- */
{
  NSScreen *screen;
  NSView *view = FRAME_NS_VIEW (f);

  NSTRACE (x_set_offset);

  BLOCK_INPUT;

  f->left_pos = xoff;
  f->top_pos = yoff;
#ifdef NS_IMPL_GNUSTEP
  if (xoff < 100)
    f->left_pos = 100;  /* don't overlap menu */
#endif
  if (view != nil && (screen = [[view window] screen]))
    [[view window] setFrameTopLeftPoint:
        NSMakePoint (SCREENMAXBOUND (f->left_pos),
                     SCREENMAXBOUND ([screen frame].size.height
                                     - NS_TOP_POS (f)))];
  UNBLOCK_INPUT;
}


void
x_set_window_size (struct frame *f, int change_grav, int cols, int rows)
/* --------------------------------------------------------------------------
     Adjust window pixel size based on given character grid size
     Impl is a bit more complex than other terms, need to do some
     internal clipping and also pay attention to screen constraints.
   -------------------------------------------------------------------------- */
{
  EmacsView *view = FRAME_NS_VIEW (f);
  EmacsToolbar *toolbar = [view toolbar];
  NSWindow *window = [view window];
  NSScreen *screen = [window screen];
  NSRect wr = [window frame];
  int tb = FRAME_EXTERNAL_TOOL_BAR (f);
  int pixelwidth, pixelheight;
  static int oldRows, oldCols, oldFontWidth, oldFontHeight;
  static int oldTB;
  static struct frame *oldF;

  NSTRACE (x_set_window_size);

  if (view == nil ||
      (f == oldF
       && rows == oldRows && cols == oldCols
       && oldFontWidth == FRAME_COLUMN_WIDTH (f)
       && oldFontHeight == FRAME_LINE_HEIGHT (f)
       && oldTB == tb))
    return;

/*fprintf (stderr, "\tsetWindowSize: %d x %d, font size %d x %d\n", cols, rows, FRAME_COLUMN_WIDTH (f), FRAME_LINE_HEIGHT (f)); */

  BLOCK_INPUT;

  check_frame_size (f, &rows, &cols);
  oldF = f;
  oldRows = rows;
  oldCols = cols;
  oldFontWidth = FRAME_COLUMN_WIDTH (f);
  oldFontHeight = FRAME_LINE_HEIGHT (f);
  oldTB = tb;

  f->scroll_bar_actual_width = NS_SCROLL_BAR_WIDTH (f);
  compute_fringe_widths (f, 0);

  pixelwidth =  FRAME_TEXT_COLS_TO_PIXEL_WIDTH   (f, cols);
  pixelheight = FRAME_TEXT_LINES_TO_PIXEL_HEIGHT (f, rows);
1160

1161
  /* If we have a toolbar, take its height into account. */
1162
  if (tb)
1163
    FRAME_NS_TOOLBAR_HEIGHT (f) =
1164 1165
      /* XXX: GNUstep has not yet implemented the first method below, added
	 in Panther, however the second is incorrect under Cocoa. */
1166 1167 1168 1169 1170
#ifdef NS_IMPL_COCOA
      NSHeight ([window frameRectForContentRect: NSMakeRect (0, 0, 0, 0)])
      /* NOTE: previously this would generate wrong result if toolbar not
               yet displayed and fixing toolbar_height=32 helped, but
               now (200903) seems no longer needed */
1171
#else
1172 1173
      NSHeight ([NSWindow frameRectForContentRect: NSMakeRect (0, 0, 0, 0)
					styleMask: [window styleMask]])
1174
#endif
1175
            - FRAME_NS_TITLEBAR_HEIGHT (f);
1176 1177 1178 1179 1180 1181 1182 1183 1184 1185 1186 1187 1188 1189 1190 1191 1192 1193 1194 1195 1196 1197 1198 1199 1200 1201 1202 1203 1204 1205 1206 1207 1208 1209 1210 1211 1212 1213 1214 1215 1216 1217 1218 1219 1220 1221 1222 1223 1224 1225 1226 1227 1228 1229 1230 1231 1232 1233 1234 1235 1236 1237 1238 1239
  else
    FRAME_NS_TOOLBAR_HEIGHT (f) = 0;

  wr.size.width = pixelwidth + f->border_width;
  wr.size.height = pixelheight + FRAME_NS_TITLEBAR_HEIGHT (f) 
                  + FRAME_NS_TOOLBAR_HEIGHT (f);

  /* constrain to screen if we can */
  if (screen)
    {
      NSSize sz = [screen visibleFrame].size;
      NSSize ez = { wr.size.width - sz.width, wr.size.height - sz.height };
      if (ez.width > 0)
        {
          int cr = ez.width / FRAME_COLUMN_WIDTH (f) + 1;
          cols -= cr;
          oldCols = cols;
          wr.size.width -= cr * FRAME_COLUMN_WIDTH (f);
          pixelwidth -= cr * FRAME_COLUMN_WIDTH (f);
        }
      if (ez.height > 0)
        {
          int rr = ez.height / FRAME_LINE_HEIGHT (f) + 1;
          rows -= rr;
          oldRows = rows;
          wr.size.height -= rr * FRAME_LINE_HEIGHT (f);
          pixelheight -= rr * FRAME_LINE_HEIGHT (f);
        }
      wr.origin.x = f->left_pos;
      wr.origin.y = [screen frame].size.height - NS_TOP_POS (f)
        - wr.size.height;
    }

  [view setRows: rows andColumns: cols];
  [window setFrame: wr display: YES];

/*fprintf (stderr, "\tx_set_window_size %d, %d\t%d, %d\n", cols, rows, pixelwidth, pixelheight); */

  /* This is a trick to compensate for Emacs' managing the scrollbar area
     as a fixed number of standard character columns.  Instead of leaving
     blank space for the extra, we chopped it off above.  Now for
     left-hand scrollbars, we shift all rendering to the left by the
     difference between the real width and Emacs' imagined one.  For
     right-hand bars, don't worry about it since the extra is never used.
     (Obviously doesn't work for vertically split windows tho..) */
  NSPoint origin = FRAME_HAS_VERTICAL_SCROLL_BARS_ON_LEFT (f)
    ? NSMakePoint (FRAME_SCROLL_BAR_COLS (f) * FRAME_COLUMN_WIDTH (f)
                  - NS_SCROLL_BAR_WIDTH (f), 0)
    : NSMakePoint (0, 0);
  [view setFrame: NSMakeRect (0, 0, pixelwidth, pixelheight)];
  [view setBoundsOrigin: origin];

  change_frame_size (f, rows, cols, 0, 1, 0); /* pretend, delay, safe */
  FRAME_PIXEL_WIDTH (f) = pixelwidth;
  FRAME_PIXEL_HEIGHT (f) = pixelheight;
/*  SET_FRAME_GARBAGED (f); // this short-circuits expose call in drawRect */

  mark_window_cursors_off (XWINDOW (f->root_window));
  cancel_mouse_face (f);

  UNBLOCK_INPUT;
}


1240

1241 1242 1243 1244 1245 1246
/* ==========================================================================

    Color management

   ========================================================================== */

1247

1248 1249 1250 1251 1252 1253 1254 1255 1256 1257 1258 1259 1260 1261 1262 1263 1264 1265 1266
NSColor *
ns_lookup_indexed_color (unsigned long idx, struct frame *f)
{
  struct ns_color_table *color_table = FRAME_NS_DISPLAY_INFO (f)->color_table;
  return color_table->colors[idx];
}


unsigned long
ns_index_color (NSColor *color, struct frame *f)
{
  struct ns_color_table *color_table = FRAME_NS_DISPLAY_INFO (f)->color_table;
  int idx;
  NSNumber *index;

  if (!color_table->colors)
    {
      color_table->size = NS_COLOR_CAPACITY;
      color_table->avail = 1; /* skip idx=0 as marker */
1267 1268
      color_table->colors
	= (NSColor **)xmalloc (color_table->size * sizeof (NSColor *));
1269 1270 1271 1272 1273 1274 1275 1276 1277 1278 1279 1280 1281 1282 1283 1284 1285 1286 1287 1288 1289 1290 1291 1292 1293 1294 1295
      color_table->empty_indices = [[NSMutableSet alloc] init];
    }

  /* do we already have this color ? */
  {
    int i;
    for (i = 1; i < color_table->avail; i++)
      {
        if (color_table->colors[i] && [color_table->colors[i] isEqual: color])
          {
            [color_table->colors[i] retain];
            return i;
          }
      }
  }

  if ([color_table->empty_indices count] > 0)
    {
      index = [color_table->empty_indices anyObject];
      [color_table->empty_indices removeObject: index];
      idx = [index unsignedIntValue];
    }
  else
    {
      if (color_table->avail == color_table->size)
        {
          color_table->size += NS_COLOR_CAPACITY;
1296 1297 1298
          color_table->colors
	    = (NSColor **)xrealloc (color_table->colors,
				    color_table->size * sizeof (NSColor *));
1299 1300 1301 1302 1303 1304 1305 1306 1307 1308 1309 1310 1311 1312
        }
      idx = color_table->avail++;
    }

  color_table->colors[idx] = color;
  [color retain];
/*fprintf(stderr, "color_table: allocated %d\n",idx);*/
  return idx;
}


void
ns_free_indexed_color (unsigned long idx, struct frame *f)
{
1313
  struct ns_color_table *color_table;
1314
  NSColor *color;
1315 1316 1317 1318 1319 1320 1321 1322 1323
  NSNumber *index;

  if (!f)
    return;

  color_table = FRAME_NS_DISPLAY_INFO (f)->color_table;

  if (idx <= 0 || idx >= color_table->size) {
    message1("ns_free_indexed_color: Color index out of range.\n");
1324
    return;
1325 1326 1327 1328 1329 1330 1331 1332
  }

  index = [NSNumber numberWithUnsignedInt: idx];
  if ([color_table->empty_indices containsObject: index]) {
    message1("ns_free_indexed_color: attempt to free already freed color.\n");
    return;
  }

1333 1334 1335 1336 1337 1338 1339 1340 1341 1342 1343 1344 1345 1346 1347
  color = color_table->colors[idx];
  [color release];
  color_table->colors[idx] = nil;
  [color_table->empty_indices addObject: [NSNumber numberWithUnsignedInt: idx]];
/*fprintf(stderr, "color_table: FREED %d\n",idx);*/
}


static int
ns_get_color (const char *name, NSColor **col)
/* --------------------------------------------------------------------------
     Parse a color name
/* --------------------------------------------------------------------------
/* On *Step, we recognize several color formats, in addition to a catalog
   of colors found in the file Emacs.clr. Color formats include:
1348
   - #rrggbb where rr, gg, bb specify red, green and blue in hex. */
1349 1350 1351
{
  NSColor * new = nil;
  const char *hex = NULL;
1352
  enum { rgb } color_space;
1353 1354 1355 1356 1357 1358 1359 1360 1361 1362 1363 1364 1365 1366 1367 1368 1369 1370 1371 1372 1373 1374 1375 1376 1377 1378 1379 1380 1381 1382 1383 1384 1385
  NSString *nsname = [NSString stringWithUTF8String: name];

/*fprintf (stderr, "ns_get_color: '%s'\n", name); */
  BLOCK_INPUT;

  if ([nsname isEqualToString: @"ns_selection_color"])
    {
      nsname = ns_selection_color;
      name = [ns_selection_color UTF8String];
    }

  if (name[0] == '0' || name[0] == '1' || name[0] == '.')
    {
      /* RGB decimal */
      NSScanner *scanner = [NSScanner scannerWithString: nsname];
      float r, g, b;
      [scanner scanFloat: &r];
      [scanner scanFloat: &g];
      [scanner scanFloat: &b];
      *col = [NSColor colorWithCalibratedRed: r green: g blue: b alpha: 1.0];
      UNBLOCK_INPUT;
      return 0;
    }

  if (name[0] == '#')             /* X11 format */
    {
      hex = name + 1;
      color_space = rgb;
    }

  /* Direct colors (hex values) */
  if (hex)
    {
1386
      unsigned long long color = 0;
1387 1388
      if (sscanf (hex, "%x", &color))
        {
1389 1390 1391 1392 1393 1394 1395 1396 1397 1398 1399 1400 1401
          float f1, f2, f3, f4;
          /* Assume it's either 1 byte or 2 per channel... */
          if (strlen(hex) > 8) {
            f1 = ((color >> 48) & 0xffff) / 65535.0;
            f2 = ((color >> 32) & 0xffff) / 65535.0;
            f3 = ((color >> 16) & 0xffff) / 65535.0;
            f4 = ((color      ) & 0xffff) / 65535.0;
          } else {
            f1 = ((color >> 24) & 0xff) / 255.0;
            f2 = ((color >> 16) & 0xff) / 255.0;
            f3 = ((color >>  8) & 0xff) / 255.0;
            f4 = ((color      ) & 0xff) / 255.0;
          }
1402 1403 1404 1405 1406 1407 1408 1409 1410 1411 1412 1413 1414 1415 1416 1417 1418 1419 1420 1421 1422

          switch (color_space)
            {
            case rgb:
              *col = [NSColor colorWithCalibratedRed: f2
                                               green: f3
                                                blue: f4
                                               alpha: 1.0];
              break;
            }
          *col = [*col colorUsingColorSpaceName: NSCalibratedRGBColorSpace];
          UNBLOCK_INPUT;
          return 0;
        }
    }

  /* Otherwise, color is expected to be from a list */
  {
    NSEnumerator *lenum, *cenum;
    NSString *name;
    NSColorList *clist;
1423

1424
#ifdef NS_IMPL_GNUSTEP
1425
    /* XXX: who is wrong, the requestor or the implementation? */
1426 1427 1428 1429 1430 1431 1432 1433 1434 1435 1436 1437 1438 1439 1440 1441 1442 1443 1444 1445 1446 1447 1448 1449 1450 1451 1452 1453 1454 1455 1456 1457 1458 1459 1460 1461 1462 1463 1464 1465 1466 1467 1468 1469 1470 1471 1472 1473 1474
    if ([nsname compare: @"Highlight" options: NSCaseInsensitiveSearch]
        == NSOrderedSame)
      nsname = @"highlightColor";
#endif

    lenum = [[NSColorList availableColorLists] objectEnumerator];
    while ( (clist = [lenum nextObject]) && new == nil)
      {
        cenum = [[clist allKeys] objectEnumerator];
        while ( (name = [cenum nextObject]) && new == nil )
          {
            if ([name compare: nsname
                      options: NSCaseInsensitiveSearch] == NSOrderedSame )
              new = [clist colorWithKey: name];
          }
      }
  }

  if ( new )
    *col = [new colorUsingColorSpaceName: NSCalibratedRGBColorSpace];
/*     else
       NSLog (@"Failed to find color '%@'", nsname); */
  UNBLOCK_INPUT;
  return new ? 0 : 1;
}


static NSColor *
ns_get_color_default (const char *name, NSColor *dflt)
/* --------------------------------------------------------------------------
     Parse a color or use a default value
   -------------------------------------------------------------------------- */
{
  NSColor * col;

  if (ns_get_color (name, &col))
    return dflt;
  else
    return col;
}


int
ns_lisp_to_color (Lisp_Object color, NSColor **col)
/* --------------------------------------------------------------------------
     Convert a Lisp string object to a NS color
   -------------------------------------------------------------------------- */
{
  NSTRACE (ns_lisp_to_color);
1475 1476 1477 1478
  if (STRINGP (color))
    return ns_get_color (SDATA (color), col);
  else if (SYMBOLP (color))
    return ns_get_color (SDATA (SYMBOL_NAME (color)), col);
1479 1480 1481 1482 1483 1484 1485 1486 1487 1488 1489 1490 1491 1492 1493 1494 1495 1496 1497 1498 1499 1500 1501 1502 1503 1504 1505 1506 1507 1508
  return 1;
}


Lisp_Object
ns_color_to_lisp (NSColor *col)
/* --------------------------------------------------------------------------
     Convert a color to a lisp string with the RGB equivalent
   -------------------------------------------------------------------------- */
{
  float red, green, blue, alpha, gray;
  char buf[1024];
  const char *str;
  NSTRACE (ns_color_to_lisp);

  BLOCK_INPUT;
  if ([[col colorSpaceName] isEqualToString: NSNamedColorSpace])

      if ((str =[[col colorNameComponent] UTF8String]))
        {
          UNBLOCK_INPUT;
          return build_string ((char *)str);
        }

    [[col colorUsingColorSpaceName: NSCalibratedRGBColorSpace]
        getRed: &red green: &green blue: &blue alpha: &alpha];
  if (red ==green && red ==blue)
    {
      [[col colorUsingColorSpaceName: NSCalibratedWhiteColorSpace]
            getWhite: &gray alpha: &alpha];
1509 1510
      snprintf (buf, sizeof (buf), "#%02.2lx%02.2lx%02.2lx",
		lrint (gray * 0xff), lrint (gray * 0xff), lrint (gray * 0xff));
1511 1512 1513 1514
      UNBLOCK_INPUT;
      return build_string (buf);
    }

1515
  snprintf (buf, sizeof (buf), "#%02.2lx%02.2lx%02.2lx",
1516 1517 1518 1519 1520 1521 1522
            lrint (red*0xff), lrint (green*0xff), lrint (blue*0xff));

  UNBLOCK_INPUT;
  return build_string (buf);
}


1523 1524 1525 1526 1527 1528 1529 1530 1531 1532 1533 1534 1535 1536 1537 1538 1539 1540 1541 1542 1543 1544
void
ns_query_color(void *col, XColor *color_def, int setPixel)
/* --------------------------------------------------------------------------
         Get ARGB values out of NSColor col and put them into color_def.
         If setPixel, set the pixel to a concatenated version.
         and set color_def pixel to the resulting index.
   -------------------------------------------------------------------------- */
{
  float r, g, b, a;

  [((NSColor *)col) getRed: &r green: &g blue: &b alpha: &a];
  color_def->red   = r * 65535;
  color_def->green = g * 65535;
  color_def->blue  = b * 65535;

  if (setPixel == YES)
    color_def->pixel
      = ARGB_TO_ULONG((int)(a*255),
		      (int)(r*255), (int)(g*255), (int)(b*255));
}


1545 1546 1547 1548
int
ns_defined_color (struct frame *f, char *name, XColor *color_def, int alloc,
                  char makeIndex)
/* --------------------------------------------------------------------------
1549
         Return 1 if named color found, and set color_def rgb accordingly.
1550 1551 1552 1553 1554 1555 1556 1557 1558 1559 1560 1561 1562 1563 1564
         If makeIndex and alloc are nonzero put the color in the color_table,
         and set color_def pixel to the resulting index.
         If makeIndex is zero, set color_def pixel to ARGB.
         Return 0 if not found
   -------------------------------------------------------------------------- */
{
  NSColor *temp;
  int notFound = ns_get_color (name, &temp);

  NSTRACE (ns_defined_color);

  if (notFound)
    return 0;

  if (makeIndex && alloc)
1565
      color_def->pixel = ns_index_color(temp, f); /* [temp retain]; */
1566

1567
  ns_query_color (temp, color_def, !makeIndex);
1568 1569 1570 1571 1572 1573 1574 1575 1576 1577 1578 1579 1580 1581 1582 1583 1584 1585 1586 1587 1588 1589 1590 1591 1592

  return 1;
}


unsigned long
ns_get_rgb_color (struct frame *f, float r, float g, float b, float a)
/* --------------------------------------------------------------------------
    return an autoreleased RGB color
   -------------------------------------------------------------------------- */
{
/*static int c = 1; fprintf (stderr, "color request %d\n", c++); */
  if (r < 0.0) r = 0.0;
  else if (r > 1.0) r = 1.0;
  if (g < 0.0) g = 0.0;
  else if (g > 1.0) g = 1.0;
  if (b < 0.0) b = 0.0;
  else if (b > 1.0) b = 1.0;
  if (a < 0.0) a = 0.0;
  else if (a > 1.0) a = 1.0;
  return (unsigned long) ns_index_color(
    [NSColor colorWithCalibratedRed: r green: g blue: b alpha: a], f);
}


1593 1594 1595 1596 1597 1598 1599 1600 1601 1602 1603 1604 1605 1606 1607 1608 1609 1610 1611 1612 1613 1614 1615 1616 1617 1618 1619
void
x_set_frame_alpha (struct frame *f)
/* --------------------------------------------------------------------------
     change the entire-frame transparency
   -------------------------------------------------------------------------- */
{
  struct ns_display_info *dpyinfo = FRAME_NS_DISPLAY_INFO (f);
  EmacsView *view = FRAME_NS_VIEW (f);
  double alpha = 1.0;
  double alpha_min = 1.0;

  if (dpyinfo->x_highlight_frame == f)
    alpha = f->alpha[0];
  else
    alpha = f->alpha[1];

  if (FLOATP (Vframe_alpha_lower_limit))
    alpha_min = XFLOAT_DATA (Vframe_alpha_lower_limit);
  else if (INTEGERP (Vframe_alpha_lower_limit))
    alpha_min = (XINT (Vframe_alpha_lower_limit)) / 100.0;

  if (alpha < 0.0)
    return;
  else if (1.0 < alpha)
    alpha = 1.0;
  else if (0.0 <= alpha && alpha < alpha_min && alpha_min <= 1.0)
    alpha = alpha_min;
1620

1621 1622 1623 1624 1625
#ifdef NS_IMPL_COCOA
  [[view window] setAlphaValue: alpha];
#endif
}

1626 1627 1628 1629 1630 1631 1632 1633 1634 1635 1636 1637 1638 1639 1640 1641 1642

/* ==========================================================================

    Mouse handling

   ========================================================================== */


void
x_set_mouse_pixel_position (struct frame *f, int pix_x, int pix_y)
/* --------------------------------------------------------------------------
     Programmatically reposition mouse pointer in pixel coordinates
   -------------------------------------------------------------------------- */
{
  NSTRACE (x_set_mouse_pixel_position);
  ns_raise_frame (f);
#if 0
1643
  /* FIXME: this does not work, and what about GNUstep? */
1644 1645 1646 1647 1648 1649 1650 1651 1652 1653 1654 1655 1656 1657 1658 1659 1660 1661 1662 1663 1664 1665 1666 1667 1668 1669 1670 1671 1672 1673 1674 1675 1676 1677 1678 1679 1680 1681
#ifdef NS_IMPL_COCOA
  [FRAME_NS_VIEW (f) lockFocus];
  PSsetmouse ((float)pix_x, (float)pix_y);
  [FRAME_NS_VIEW (f) unlockFocus];
#endif
#endif
}


void
x_set_mouse_position (struct frame *f, int h, int v)
/* --------------------------------------------------------------------------
     Programmatically reposition mouse pointer in character coordinates
   -------------------------------------------------------------------------- */
{
  int pix_x, pix_y;

  pix_x = FRAME_COL_TO_PIXEL_X (f, h) + FRAME_COLUMN_WIDTH (f) / 2;
  pix_y = FRAME_LINE_TO_PIXEL_Y (f, v) + FRAME_LINE_HEIGHT (f) / 2;

  if (pix_x < 0) pix_x = 0;
  if (pix_x > FRAME_PIXEL_WIDTH (f)) pix_x = FRAME_PIXEL_WIDTH (f);

  if (pix_y < 0) pix_y = 0;
  if (pix_y > FRAME_PIXEL_HEIGHT (f)) pix_y = FRAME_PIXEL_HEIGHT (f);

  x_set_mouse_pixel_position (f, pix_x, pix_y);
}


static int
note_mouse_movement (struct frame *frame, float x, float y)
/*   ------------------------------------------------------------------------
     Called by EmacsView on mouseMovement events.  Passes on
     to emacs mainstream code if we moved off of a rect of interest
     known as last_mouse_glyph.
     ------------------------------------------------------------------------ */
{
1682
//  NSTRACE (note_mouse_movement);
1683 1684

  XSETFRAME (last_mouse_motion_frame, frame);
1685

1686 1687 1688 1689 1690 1691 1692 1693 1694
  /* Note, this doesn't get called for enter/leave, since we don't have a
     position.  Those are taken care of in the corresponding NSView methods. */

  /* has movement gone beyond last rect we were tracking? */
  if (x < last_mouse_glyph.origin.x ||
      x >= (last_mouse_glyph.origin.x + last_mouse_glyph.size.width) ||
      y < last_mouse_glyph.origin.y ||
      y >= (last_mouse_glyph.origin.y + last_mouse_glyph.size.height))
    {
1695
      ns_update_begin(frame);
1696 1697 1698
      frame->mouse_moved = 1;
      note_mouse_highlight (frame, x, y);
      remember_mouse_glyph (frame, x, y, &last_mouse_glyph);
1699
      ns_update_end(frame);
1700 1701 1702 1703 1704 1705 1706 1707 1708 1709 1710 1711 1712 1713 1714 1715 1716 1717 1718 1719 1720 1721 1722 1723 1724 1725 1726 1727 1728 1729 1730 1731 1732 1733 1734 1735 1736 1737 1738
      return 1;
    }

  return 0;
}


static void
ns_mouse_position (struct frame **fp, int insist, Lisp_Object *bar_window,
                   enum scroll_bar_part *part, Lisp_Object *x, Lisp_Object *y,
                   unsigned long *time)
/* --------------------------------------------------------------------------
    External (hook): inform emacs about mouse position and hit parts.
    If a scrollbar is being dragged, set bar_window, part, x, y, time.
    x & y should be position in the scrollbar (the whole bar, not the handle)
    and length of scrollbar respectively
   -------------------------------------------------------------------------- */
{
  id view;
  NSPoint position;
  int xchar, ychar;
  Lisp_Object frame, tail;
  struct frame *f;
  struct ns_display_info *dpyinfo;

  NSTRACE (ns_mouse_position);

  if (*fp == NULL)
    {
      fprintf (stderr, "Warning: ns_mouse_position () called with null *fp.\n");
      return;
    }

  dpyinfo = FRAME_NS_DISPLAY_INFO (*fp);

  BLOCK_INPUT;

  if (last_mouse_scroll_bar != nil && insist == 0)
    {
1739 1740
      /* TODO: we do not use this path at the moment because drag events will
           go directly to the EmacsScroller.  Leaving code in for now. */
1741 1742 1743 1744 1745 1746 1747 1748 1749 1750 1751 1752 1753 1754 1755 1756 1757
      [last_mouse_scroll_bar getMouseMotionPart: (int *)part window: bar_window
                                              x: x y: y];
      if (time) *time = last_mouse_movement_time;
      last_mouse_scroll_bar = nil;
    }
  else
    {
      /* Clear the mouse-moved flag for every frame on this display.  */
      FOR_EACH_FRAME (tail, frame)
        if (FRAME_NS_P (XFRAME (frame))
            && FRAME_NS_DISPLAY (XFRAME (frame)) == FRAME_NS_DISPLAY (*fp))
          XFRAME (frame)->mouse_moved = 0;

      last_mouse_scroll_bar = nil;
      if (last_mouse_frame && FRAME_LIVE_P (last_mouse_frame))
        f = last_mouse_frame;
      else
1758
        f = dpyinfo->x_focus_frame ? dpyinfo->x_focus_frame
1759 1760
                                    : SELECTED_FRAME ();

1761
      if (f && f->output_data.ns)  /* TODO: 2nd check no longer needed? */
1762 1763 1764 1765 1766 1767 1768 1769 1770 1771 1772 1773 1774 1775 1776 1777 1778 1779 1780 1781 1782 1783 1784 1785 1786 1787 1788 1789 1790 1791 1792 1793 1794 1795 1796 1797 1798 1799 1800
        {
          view = FRAME_NS_VIEW (*fp);

          position = [[view window] mouseLocationOutsideOfEventStream];
          position = [view convertPoint: position fromView: nil];
          remember_mouse_glyph (f, position.x, position.y, &last_mouse_glyph);
/*fprintf (stderr, "ns_mouse_position: %.0f, %.0f\n", position.x, position.y); */

          if (bar_window) *bar_window = Qnil;
          if (part) *part = 0; /*scroll_bar_handle; */

          if (x) XSETINT (*x, lrint (position.x));
          if (y) XSETINT (*y, lrint (position.y));
          if (time) *time = last_mouse_movement_time;
          *fp = f;
        }
    }

  UNBLOCK_INPUT;
}


static void
ns_frame_up_to_date (struct frame *f)
/* --------------------------------------------------------------------------
    External (hook): Fix up mouse highlighting right after a full update.
    Some highlighting was deferred if GC was happening during
    note_mouse_highlight (), while other highlighting was deferred for update.
   -------------------------------------------------------------------------- */
{
  NSTRACE (ns_frame_up_to_date);

  if (FRAME_NS_P (f))
    {
      struct ns_display_info *dpyinfo = FRAME_NS_DISPLAY_INFO (f);
      if ((dpyinfo->mouse_face_deferred_gc||f ==dpyinfo->mouse_face_mouse_frame)
      /*&& dpyinfo->mouse_face_mouse_frame*/)
        {
          BLOCK_INPUT;
1801
         ns_update_begin(f);
1802 1803 1804 1805 1806
          if (dpyinfo->mouse_face_mouse_frame)
            note_mouse_highlight (dpyinfo->mouse_face_mouse_frame,
                                  dpyinfo->mouse_face_mouse_x,
                                  dpyinfo->mouse_face_mouse_y);
          dpyinfo->mouse_face_deferred_gc = 0;
1807
         ns_update_end(f);
1808 1809 1810 1811 1812 1813 1814 1815 1816 1817 1818 1819 1820 1821 1822 1823 1824 1825 1826 1827 1828 1829 1830 1831 1832 1833 1834 1835 1836 1837 1838 1839 1840 1841 1842 1843 1844 1845 1846 1847 1848 1849 1850 1851 1852 1853 1854 1855 1856 1857 1858 1859 1860 1861 1862 1863 1864 1865 1866 1867 1868 1869 1870 1871 1872 1873 1874 1875 1876 1877 1878 1879 1880 1881 1882 1883 1884 1885 1886 1887 1888 1889 1890 1891 1892 1893 1894 1895 1896 1897 1898 1899 1900 1901 1902 1903 1904 1905 1906 1907 1908 1909 1910 1911 1912 1913 1914 1915