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;;; ns-win.el --- lisp side of interface with NeXT/Open/GNUstep/MacOS X window system

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;; Copyright (C) 1993, 1994, 2005, 2006, 2007, 2008, 2009
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;;   Free Software Foundation, Inc.
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;; Authors: Carl Edman
;;	Christian Limpach
;;	Scott Bender
;;	Christophe de Dinechin
;;	Adrian Robert
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;; Keywords: terminals

;; This file is part of GNU Emacs.

;; GNU Emacs is free software: you can redistribute it and/or modify
;; it under the terms of the GNU General Public License as published by
;; the Free Software Foundation, either version 3 of the License, or
;; (at your option) any later version.

;; 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
;; along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.
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;;; Commentary:

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;; ns-win.el: this file is loaded from ../lisp/startup.el when it
;; recognizes that Nextstep windows are to be used.  Command line
;; switches are parsed and those pertaining to Nextstep are processed
;; and removed from the command line.  The Nextstep display is opened
;; and hooks are set for popping up the initial window.
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;; startup.el will then examine startup files, and eventually call the hooks
;; which create the first window (s).

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;; A number of other Nextstep convenience functions are defined in
;; this file, which works in close coordination with src/nsfns.m.
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;;; Code:


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(if (not (featurep 'ns))
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    (error "%s: Loading ns-win.el but not compiled for GNUstep/MacOS"
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	   (invocation-name)))

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(eval-when-compile (require 'cl))

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;; Documentation-purposes only: actually loaded in loadup.el
(require 'frame)
(require 'mouse)
(require 'faces)
(require 'easymenu)
(require 'menu-bar)
(require 'fontset)

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;; Not needed?
;;(require 'ispell)
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(defgroup ns nil
  "GNUstep/Mac OS X specific features."
  :group 'environment)

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;; nsterm.m
(defvar ns-version-string)
(defvar ns-alternate-modifier)

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;;;; Command line argument handling.

(defvar ns-invocation-args nil)
(defvar ns-command-line-resources nil)

;; Handler for switches of the form "-switch value" or "-switch".
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(defun ns-handle-switch (switch &optional numeric)
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  (let ((aelt (assoc switch command-line-ns-option-alist)))
    (if aelt
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	(setq default-frame-alist
	      (cons (cons (nth 3 aelt)
			  (if numeric
			      (string-to-number (pop ns-invocation-args))
			    (or (nth 4 aelt) (pop ns-invocation-args))))
		    default-frame-alist)))))
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;; Handler for switches of the form "-switch n"
(defun ns-handle-numeric-switch (switch)
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  (ns-handle-switch switch t))
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;; Make -iconic apply only to the initial frame!
(defun ns-handle-iconic (switch)
  (setq initial-frame-alist
        (cons '(visibility . icon) initial-frame-alist)))

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;; Handle the -name option, set the name of the initial frame.
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(defun ns-handle-name-switch (switch)
  (or (consp ns-invocation-args)
      (error "%s: missing argument to `%s' option" (invocation-name) switch))
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  (setq initial-frame-alist (cons (cons 'name (pop ns-invocation-args))
                                  initial-frame-alist)))

;; Set (but not used?) in frame.el.
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(defvar x-display-name nil
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  "The name of the Nextstep display on which Emacs was started.")
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;; nsterm.m.
(defvar ns-input-file)

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(defun ns-handle-nxopen (switch)
  (setq unread-command-events (append unread-command-events '(ns-open-file))
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        ns-input-file (append ns-input-file (list (pop ns-invocation-args)))))
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(defun ns-handle-nxopentemp (switch)
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  (setq unread-command-events (append unread-command-events
				      '(ns-open-temp-file))
        ns-input-file (append ns-input-file (list (pop ns-invocation-args)))))
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(defun ns-ignore-1-arg (switch)
  (setq ns-invocation-args (cdr ns-invocation-args)))
(defun ns-ignore-2-arg (switch)
  (setq ns-invocation-args (cddr ns-invocation-args)))

(defun ns-handle-args (args)
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  "Process Nextstep-related command line options.
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This is run before the user's startup file is loaded.
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The options in ARGS are copied to `ns-invocation-args'.
The Nextstep-related settings are then applied using the handlers
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defined in `command-line-ns-option-alist'.
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The return value is ARGS minus the number of arguments processed."
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  ;; We use ARGS to accumulate the args that we don't handle here, to return.
  (setq ns-invocation-args args
        args nil)
  (while ns-invocation-args
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    (let* ((this-switch (pop ns-invocation-args))
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	   (orig-this-switch this-switch)
	   completion argval aelt handler)
      ;; Check for long options with attached arguments
      ;; and separate out the attached option argument into argval.
      (if (string-match "^--[^=]*=" this-switch)
	  (setq argval (substring this-switch (match-end 0))
		this-switch (substring this-switch 0 (1- (match-end 0)))))
      ;; Complete names of long options.
      (if (string-match "^--" this-switch)
	  (progn
	    (setq completion (try-completion this-switch
                                             command-line-ns-option-alist))
	    (if (eq completion t)
		;; Exact match for long option.
		nil
	      (if (stringp completion)
		  (let ((elt (assoc completion command-line-ns-option-alist)))
		    ;; Check for abbreviated long option.
		    (or elt
			(error "Option `%s' is ambiguous" this-switch))
		    (setq this-switch completion))))))
      (setq aelt (assoc this-switch command-line-ns-option-alist))
      (if aelt (setq handler (nth 2 aelt)))
      (if handler
	  (if argval
	      (let ((ns-invocation-args
		     (cons argval ns-invocation-args)))
		(funcall handler this-switch))
	    (funcall handler this-switch))
	(setq args (cons orig-this-switch args)))))
  (nreverse args))

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(defun ns-parse-geometry (geom)
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  "Parse a Nextstep-style geometry string GEOM.
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Returns an alist of the form ((top . TOP), (left . LEFT) ... ).
The properties returned may include `top', `left', `height', and `width'."
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  (when (string-match "\\([0-9]+\\)\\( \\([0-9]+\\)\\( \\([0-9]+\\)\
\\( \\([0-9]+\\) ?\\)?\\)?\\)?"
		      geom)
    (apply
     'append
     (list
      (list (cons 'top (string-to-number (match-string 1 geom))))
      (if (match-string 3 geom)
	  (list (cons 'left (string-to-number (match-string 3 geom)))))
      (if (match-string 5 geom)
	  (list (cons 'height (string-to-number (match-string 5 geom)))))
      (if (match-string 7 geom)
	  (list (cons 'width (string-to-number (match-string 7 geom)))))))))
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;;;; Keyboard mapping.

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;; These tell read-char how to convert these special chars to ASCII.
;;TODO: all terms have these, and at least the return mapping is necessary
;;      for tramp to recognize the enter key.
;;      Perhaps they should be moved into common code somewhere
;;      (when a window system is active).
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;;      Remove if no problems for some time after 2008-08-06.
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(put 'backspace 'ascii-character 127)
(put 'delete 'ascii-character 127)
(put 'tab 'ascii-character ?\t)
(put 'S-tab 'ascii-character (logior 16 ?\t))
(put 'linefeed 'ascii-character ?\n)
(put 'clear 'ascii-character 12)
(put 'return 'ascii-character 13)
(put 'escape 'ascii-character ?\e)
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(defvar ns-alternatives-map
  (let ((map (make-sparse-keymap)))
    ;; Map certain keypad keys into ASCII characters
    ;; that people usually expect.
    (define-key map [backspace] [?\d])
    (define-key map [delete] [?\d])
    (define-key map [tab] [?\t])
    (define-key map [S-tab] [25])
    (define-key map [linefeed] [?\n])
    (define-key map [clear] [?\C-l])
    (define-key map [return] [?\C-m])
    (define-key map [escape] [?\e])
    (define-key map [M-backspace] [?\M-\d])
    (define-key map [M-delete] [?\M-\d])
    (define-key map [M-tab] [?\M-\t])
    (define-key map [M-linefeed] [?\M-\n])
    (define-key map [M-clear] [?\M-\C-l])
    (define-key map [M-return] [?\M-\C-m])
    (define-key map [M-escape] [?\M-\e])
    map)
  "Keymap of alternative meanings for some keys under NS.")
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;; Here are some Nextstep-like bindings for command key sequences.
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(define-key global-map [?\s-,] 'customize)
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(define-key global-map [?\s-'] 'next-multiframe-window)
(define-key global-map [?\s-`] 'other-frame)
(define-key global-map [?\s--] 'center-line)
(define-key global-map [?\s-:] 'ispell)
(define-key global-map [?\s-\;] 'ispell-next)
(define-key global-map [?\s-?] 'info)
(define-key global-map [?\s-^] 'kill-some-buffers)
(define-key global-map [?\s-&] 'kill-this-buffer)
(define-key global-map [?\s-C] 'ns-popup-color-panel)
(define-key global-map [?\s-D] 'dired)
(define-key global-map [?\s-E] 'edit-abbrevs)
(define-key global-map [?\s-L] 'shell-command)
(define-key global-map [?\s-M] 'manual-entry)
(define-key global-map [?\s-S] 'ns-write-file-using-panel)
(define-key global-map [?\s-a] 'mark-whole-buffer)
(define-key global-map [?\s-c] 'ns-copy-including-secondary)
(define-key global-map [?\s-d] 'isearch-repeat-backward)
(define-key global-map [?\s-e] 'isearch-yank-kill)
(define-key global-map [?\s-f] 'isearch-forward)
(define-key global-map [?\s-g] 'isearch-repeat-forward)
(define-key global-map [?\s-h] 'ns-do-hide-emacs)
(define-key global-map [?\s-H] 'ns-do-hide-others)
(define-key global-map [?\s-j] 'exchange-point-and-mark)
(define-key global-map [?\s-k] 'kill-this-buffer)
(define-key global-map [?\s-l] 'goto-line)
(define-key global-map [?\s-m] 'iconify-frame)
(define-key global-map [?\s-n] 'make-frame)
(define-key global-map [?\s-o] 'ns-open-file-using-panel)
(define-key global-map [?\s-p] 'ns-print-buffer)
(define-key global-map [?\s-q] 'save-buffers-kill-emacs)
(define-key global-map [?\s-s] 'save-buffer)
(define-key global-map [?\s-t] 'ns-popup-font-panel)
(define-key global-map [?\s-u] 'revert-buffer)
(define-key global-map [?\s-v] 'yank)
(define-key global-map [?\s-w] 'delete-frame)
(define-key global-map [?\s-x] 'kill-region)
(define-key global-map [?\s-y] 'ns-paste-secondary)
(define-key global-map [?\s-z] 'undo)
(define-key global-map [?\s-|] 'shell-command-on-region)
(define-key global-map [s-kp-bar] 'shell-command-on-region)
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;; (as in Terminal.app)
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(define-key global-map [s-right] 'ns-next-frame)
(define-key global-map [s-left] 'ns-prev-frame)

(define-key global-map [home] 'beginning-of-buffer)
(define-key global-map [end] 'end-of-buffer)
(define-key global-map [kp-home] 'beginning-of-buffer)
(define-key global-map [kp-end] 'end-of-buffer)
(define-key global-map [kp-prior] 'scroll-down)
(define-key global-map [kp-next] 'scroll-up)

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;;; Allow shift-clicks to work similarly to under Nextstep
(define-key global-map [S-mouse-1] 'mouse-save-then-kill)
(global-unset-key [S-down-mouse-1])

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;; Special Nextstep-generated events are converted to function keys.  Here
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;; are the bindings for them.
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(define-key global-map [ns-power-off] 'save-buffers-kill-emacs)
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(define-key global-map [ns-open-file] 'ns-find-file)
(define-key global-map [ns-open-temp-file] [ns-open-file])
(define-key global-map [ns-drag-file] 'ns-insert-file)
(define-key global-map [ns-drag-color] 'ns-set-foreground-at-mouse)
(define-key global-map [S-ns-drag-color] 'ns-set-background-at-mouse)
(define-key global-map [ns-drag-text] 'ns-insert-text)
(define-key global-map [ns-change-font] 'ns-respond-to-change-font)
(define-key global-map [ns-open-file-line] 'ns-open-file-select-line)
(define-key global-map [ns-spi-service-call] 'ns-spi-service-call)
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(define-key global-map [ns-new-frame] 'make-frame)
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(define-key global-map [ns-toggle-toolbar] 'ns-toggle-toolbar)
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(define-key global-map [ns-show-prefs] 'customize)
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;; Set up a number of aliases and other layers to pretend we're using
;; the Choi/Mitsuharu Carbon port.

(defvaralias 'mac-allow-anti-aliasing 'ns-antialias-text)
(defvaralias 'mac-command-modifier 'ns-command-modifier)
(defvaralias 'mac-control-modifier 'ns-control-modifier)
(defvaralias 'mac-option-modifier 'ns-option-modifier)
(defvaralias 'mac-function-modifier 'ns-function-modifier)
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(declare-function ns-do-applescript "nsfns.m" (script))
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(defalias 'do-applescript 'ns-do-applescript)

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(defun x-setup-function-keys (frame)
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  "Set up function Keys for Nextstep for frame FRAME."
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  (unless (terminal-parameter frame 'x-setup-function-keys)
    (with-selected-frame frame
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      (setq interprogram-cut-function 'x-select-text
	    interprogram-paste-function 'x-cut-buffer-or-selection-value)
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      (let ((map (copy-keymap ns-alternatives-map)))
	(set-keymap-parent map (keymap-parent local-function-key-map))
	(set-keymap-parent local-function-key-map map))
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      (setq system-key-alist
            (list
             (cons (logior (lsh 0 16)   1) 'ns-power-off)
             (cons (logior (lsh 0 16)   2) 'ns-open-file)
             (cons (logior (lsh 0 16)   3) 'ns-open-temp-file)
             (cons (logior (lsh 0 16)   4) 'ns-drag-file)
             (cons (logior (lsh 0 16)   5) 'ns-drag-color)
             (cons (logior (lsh 0 16)   6) 'ns-drag-text)
             (cons (logior (lsh 0 16)   7) 'ns-change-font)
             (cons (logior (lsh 0 16)   8) 'ns-open-file-line)
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;             (cons (logior (lsh 0 16)   9) 'ns-insert-working-text)
;             (cons (logior (lsh 0 16)  10) 'ns-delete-working-text)
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             (cons (logior (lsh 0 16)  11) 'ns-spi-service-call)
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	     (cons (logior (lsh 0 16)  12) 'ns-new-frame)
	     (cons (logior (lsh 0 16)  13) 'ns-toggle-toolbar)
	     (cons (logior (lsh 0 16)  14) 'ns-show-prefs)
	     (cons (logior (lsh 1 16)  32) 'f1)
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             (cons (logior (lsh 1 16)  33) 'f2)
             (cons (logior (lsh 1 16)  34) 'f3)
             (cons (logior (lsh 1 16)  35) 'f4)
             (cons (logior (lsh 1 16)  36) 'f5)
             (cons (logior (lsh 1 16)  37) 'f6)
             (cons (logior (lsh 1 16)  38) 'f7)
             (cons (logior (lsh 1 16)  39) 'f8)
             (cons (logior (lsh 1 16)  40) 'f9)
             (cons (logior (lsh 1 16)  41) 'f10)
             (cons (logior (lsh 1 16)  42) 'f11)
             (cons (logior (lsh 1 16)  43) 'f12)
             (cons (logior (lsh 1 16)  44) 'kp-insert)
             (cons (logior (lsh 1 16)  45) 'kp-delete)
             (cons (logior (lsh 1 16)  46) 'kp-home)
             (cons (logior (lsh 1 16)  47) 'kp-end)
             (cons (logior (lsh 1 16)  48) 'kp-prior)
             (cons (logior (lsh 1 16)  49) 'kp-next)
             (cons (logior (lsh 1 16)  50) 'print-screen)
             (cons (logior (lsh 1 16)  51) 'scroll-lock)
             (cons (logior (lsh 1 16)  52) 'pause)
             (cons (logior (lsh 1 16)  53) 'system)
             (cons (logior (lsh 1 16)  54) 'break)
             (cons (logior (lsh 1 16)  56) 'please-tell-carl-what-this-key-is-called-56)
             (cons (logior (lsh 1 16)  61) 'please-tell-carl-what-this-key-is-called-61)
             (cons (logior (lsh 1 16)  62) 'please-tell-carl-what-this-key-is-called-62)
             (cons (logior (lsh 1 16)  63) 'please-tell-carl-what-this-key-is-called-63)
             (cons (logior (lsh 1 16)  64) 'please-tell-carl-what-this-key-is-called-64)
             (cons (logior (lsh 1 16)  69) 'please-tell-carl-what-this-key-is-called-69)
             (cons (logior (lsh 1 16)  70) 'please-tell-carl-what-this-key-is-called-70)
             (cons (logior (lsh 1 16)  71) 'please-tell-carl-what-this-key-is-called-71)
             (cons (logior (lsh 1 16)  72) 'please-tell-carl-what-this-key-is-called-72)
             (cons (logior (lsh 1 16)  73) 'please-tell-carl-what-this-key-is-called-73)
             (cons (logior (lsh 2 16)   3) 'kp-enter)
             (cons (logior (lsh 2 16)   9) 'kp-tab)
             (cons (logior (lsh 2 16)  28) 'kp-quit)
             (cons (logior (lsh 2 16)  35) 'kp-hash)
             (cons (logior (lsh 2 16)  42) 'kp-multiply)
             (cons (logior (lsh 2 16)  43) 'kp-add)
             (cons (logior (lsh 2 16)  44) 'kp-separator)
             (cons (logior (lsh 2 16)  45) 'kp-subtract)
             (cons (logior (lsh 2 16)  46) 'kp-decimal)
             (cons (logior (lsh 2 16)  47) 'kp-divide)
             (cons (logior (lsh 2 16)  48) 'kp-0)
             (cons (logior (lsh 2 16)  49) 'kp-1)
             (cons (logior (lsh 2 16)  50) 'kp-2)
             (cons (logior (lsh 2 16)  51) 'kp-3)
             (cons (logior (lsh 2 16)  52) 'kp-4)
             (cons (logior (lsh 2 16)  53) 'kp-5)
             (cons (logior (lsh 2 16)  54) 'kp-6)
             (cons (logior (lsh 2 16)  55) 'kp-7)
             (cons (logior (lsh 2 16)  56) 'kp-8)
             (cons (logior (lsh 2 16)  57) 'kp-9)
             (cons (logior (lsh 2 16)  60) 'kp-less)
             (cons (logior (lsh 2 16)  61) 'kp-equal)
             (cons (logior (lsh 2 16)  62) 'kp-more)
             (cons (logior (lsh 2 16)  64) 'kp-at)
             (cons (logior (lsh 2 16)  92) 'kp-backslash)
             (cons (logior (lsh 2 16)  96) 'kp-backtick)
             (cons (logior (lsh 2 16) 124) 'kp-bar)
             (cons (logior (lsh 2 16) 126) 'kp-tilde)
             (cons (logior (lsh 2 16) 157) 'kp-mu)
             (cons (logior (lsh 2 16) 165) 'kp-yen)
             (cons (logior (lsh 2 16) 167) 'kp-paragraph)
             (cons (logior (lsh 2 16) 172) 'left)
             (cons (logior (lsh 2 16) 173) 'up)
             (cons (logior (lsh 2 16) 174) 'right)
             (cons (logior (lsh 2 16) 175) 'down)
             (cons (logior (lsh 2 16) 176) 'kp-ring)
             (cons (logior (lsh 2 16) 201) 'kp-square)
             (cons (logior (lsh 2 16) 204) 'kp-cube)
             (cons (logior (lsh 3 16)   8) 'backspace)
             (cons (logior (lsh 3 16)   9) 'tab)
             (cons (logior (lsh 3 16)  10) 'linefeed)
             (cons (logior (lsh 3 16)  11) 'clear)
             (cons (logior (lsh 3 16)  13) 'return)
             (cons (logior (lsh 3 16)  18) 'pause)
             (cons (logior (lsh 3 16)  25) 'S-tab)
             (cons (logior (lsh 3 16)  27) 'escape)
             (cons (logior (lsh 3 16) 127) 'delete)
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             )))
    (set-terminal-parameter frame 'x-setup-function-keys t)))
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;; Must come after keybindings.
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;; (fmakunbound 'clipboard-yank)
;; (fmakunbound 'clipboard-kill-ring-save)
;; (fmakunbound 'clipboard-kill-region)
;; (fmakunbound 'menu-bar-enable-clipboard)
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;; Add a couple of menus and rearrange some others; easiest just to redo toplvl
;; Note keymap defns must be given last-to-first
(define-key global-map [menu-bar] (make-sparse-keymap "menu-bar"))

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(setq menu-bar-final-items
      (cond ((eq system-type 'darwin)
             '(buffer windows services help-menu))
            ;; Otherwise, GNUstep.
            (t
             '(buffer windows services hide-app quit))))
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;; Add standard top-level items to GNUstep menu.
(unless (eq system-type 'darwin)
  (define-key global-map [menu-bar quit] '("Quit" . save-buffers-kill-emacs))
  (define-key global-map [menu-bar hide-app] '("Hide" . ns-do-hide-emacs)))
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(define-key global-map [menu-bar services]
  (cons "Services" (make-sparse-keymap "Services")))
(define-key global-map [menu-bar buffer]
  (cons "Buffers" global-buffers-menu-map))
;;  (cons "Buffers" (make-sparse-keymap "Buffers")))
(define-key global-map [menu-bar tools] (cons "Tools" menu-bar-tools-menu))
(define-key global-map [menu-bar options] (cons "Options" menu-bar-options-menu))
(define-key global-map [menu-bar edit] (cons "Edit" menu-bar-edit-menu))
(define-key global-map [menu-bar file] (cons "File" menu-bar-file-menu))

;; If running under GNUstep, rename "Help" to "Info"
(cond ((eq system-type 'darwin)
       (define-key global-map [menu-bar help-menu]
	 (cons "Help" menu-bar-help-menu)))
      (t
       (let ((contents (reverse (cdr menu-bar-help-menu))))
	 (setq menu-bar-help-menu
	       (append (list 'keymap) (cdr contents) (list "Info"))))
       (define-key global-map [menu-bar help-menu]
	 (cons "Info" menu-bar-help-menu))))

(if (not (eq system-type 'darwin))
    ;; in OS X it's in the app menu already
    (define-key menu-bar-help-menu [info-panel]
      '("About Emacs..." . ns-do-emacs-info-panel)))

;;;; Edit menu: Modify slightly

472
;; Substitute a Copy function that works better under X (for GNUstep).
473 474 475
(easy-menu-remove-item global-map '("menu-bar" "edit") 'copy)
(define-key-after menu-bar-edit-menu [copy]
  '(menu-item "Copy" ns-copy-including-secondary
476 477
    :enable mark-active
    :help "Copy text in region between mark and current position")
478 479
  'cut)

480 481
;; Change to same precondition as select-and-paste, as we don't have
;; `x-selection-exists-p'.
482 483 484
(easy-menu-remove-item global-map '("menu-bar" "edit") 'paste)
(define-key-after menu-bar-edit-menu [paste]
  '(menu-item "Paste" yank
485 486
    :enable (and (cdr yank-menu) (not buffer-read-only))
    :help "Paste (yank) text most recently cut/copied")
487 488
  'copy)

489
;; Change text to be more consistent with surrounding menu items `paste', etc.
490 491 492
(easy-menu-remove-item global-map '("menu-bar" "edit") 'paste-from-menu)
(define-key-after menu-bar-edit-menu [select-paste]
  '(menu-item "Select and Paste" yank-menu
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    :enable (and (cdr yank-menu) (not buffer-read-only))
    :help "Choose a string from the kill ring and paste it")
495 496
  'paste)

497
;; Separate undo from cut/paste section, add spell for platform consistency.
498 499 500 501 502
(define-key-after menu-bar-edit-menu [separator-undo] '("--") 'undo)
(define-key-after menu-bar-edit-menu [spell] '("Spell" . ispell-menu-map) 'fill)


;;;; Services
503 504
(declare-function ns-perform-service "nsfns.m" (service send))

505 506 507 508
(defun ns-define-service (path)
  (let ((mapping [menu-bar services])
	(service (mapconcat 'identity path "/"))
	(name (intern
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               (subst-char-in-string
                ?\s ?-
                (mapconcat 'identity (cons "ns-service" path) "-")))))
    ;; This defines the function.
    (defalias name
      (lexical-let ((service service))
        (lambda (arg)
          (interactive "p")
          (let* ((in-string
                  (cond ((stringp arg) arg)
                        (mark-active
                         (buffer-substring (region-beginning) (region-end)))))
                 (out-string (ns-perform-service service in-string)))
            (cond
             ((stringp arg) out-string)
             ((and out-string (or (not in-string)
                                  (not (string= in-string out-string))))
              (if mark-active (delete-region (region-beginning) (region-end)))
              (insert out-string)
              (setq deactivate-mark nil)))))))
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    (cond
     ((lookup-key global-map mapping)
      (while (cdr path)
	(setq mapping (vconcat mapping (list (intern (car path)))))
	(if (not (keymapp (lookup-key global-map mapping)))
	    (define-key global-map mapping
	      (cons (car path) (make-sparse-keymap (car path)))))
	(setq path (cdr path)))
      (setq mapping (vconcat mapping (list (intern (car path)))))
      (define-key global-map mapping (cons (car path) name))))
    name))

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;; nsterm.m
(defvar ns-input-spi-name)
(defvar ns-input-spi-arg)

545 546
(declare-function dnd-open-file "dnd" (uri action))

547
(defun ns-spi-service-call ()
548
  "Respond to a service request."
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  (interactive)
  (cond ((string-equal ns-input-spi-name "open-selection")
	 (switch-to-buffer (generate-new-buffer "*untitled*"))
	 (insert ns-input-spi-arg))
	((string-equal ns-input-spi-name "open-file")
	 (dnd-open-file ns-input-spi-arg nil))
	((string-equal ns-input-spi-name "mail-selection")
	 (compose-mail)
	 (rfc822-goto-eoh)
	 (forward-line 1)
	 (insert ns-input-spi-arg))
	((string-equal ns-input-spi-name "mail-to")
	 (compose-mail ns-input-spi-arg))
	(t (error (concat "Service " ns-input-spi-name " not recognized")))))


;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;



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;; Composed key sequence handling for Nextstep system input methods.
;; (On Nextstep systems, input methods are provided for CJK
;; characters, etc. which require multiple keystrokes, and during
;; entry a partial ("working") result is typically shown in the
;; editing window.)
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(defface ns-working-text-face
  '((t :underline t))
  "Face used to highlight working text during compose sequence insert."
  :group 'ns)

(defvar ns-working-overlay nil
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  "Overlay used to highlight working text during compose sequence insert.
When text is in th echo area, this just stores the length of the working text.")
583

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(defvar ns-working-text)		; nsterm.m

;; Test if in echo area, based on mac-win.el 2007/08/26 unicode-2.
;; This will fail if called from a NONASCII_KEYSTROKE event on the global map.
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(defun ns-in-echo-area ()
  "Whether, for purposes of inserting working composition text, the minibuffer
is currently being used."
  (or isearch-mode
      (and cursor-in-echo-area (current-message))
      ;; Overlay strings are not shown in some cases.
      (get-char-property (point) 'invisible)
      (and (not (bobp))
	   (or (and (get-char-property (point) 'display)
		    (eq (get-char-property (1- (point)) 'display)
			(get-char-property (point) 'display)))
	       (and (get-char-property (point) 'composition)
		    (eq (get-char-property (1- (point)) 'composition)
			(get-char-property (point) 'composition)))))))

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;; The 'interactive' here stays for subinvocations, so the ns-in-echo-area
;; always returns nil for some reason.  If this WASN'T the case, we could
;; map this to [ns-insert-working-text] and eliminate Fevals in nsterm.m.
606
;; These functions test whether in echo area and delegate accordingly.
607
(defun ns-put-working-text ()
608
  (interactive)
609
  (if (ns-in-echo-area) (ns-echo-working-text) (ns-insert-working-text)))
610 611
(defun ns-unput-working-text ()
  (interactive)
612
  (ns-delete-working-text))
613

614
(defun ns-insert-working-text ()
615 616 617 618 619
  "Insert contents of `ns-working-text' as UTF8 string and mark with
`ns-working-overlay'.  Any previously existing working text is cleared first.
The overlay is assigned the face `ns-working-text-face'."
  ;; FIXME: if buffer is read-only, don't try to insert anything
  ;;  and if text is bound to a command, execute that instead (Bug#1453)
620
  (interactive)
621
  (ns-delete-working-text)
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  (let ((start (point)))
    (insert ns-working-text)
    (overlay-put (setq ns-working-overlay (make-overlay start (point)
							(current-buffer) nil t))
626
		 'face 'ns-working-text-face)))
627 628 629

(defun ns-echo-working-text ()
  "Echo contents of ns-working-text in message display area.
630 631
See `ns-insert-working-text'."
  (ns-delete-working-text)
632 633 634
  (let* ((msg (current-message))
	 (msglen (length msg))
	 message-log-max)
635
    (setq ns-working-overlay (length ns-working-text))
636
    (setq msg (concat msg ns-working-text))
637
    (put-text-property msglen (+ msglen ns-working-overlay)
638
		       'face 'ns-working-text-face msg)
639
    (message "%s" msg)))
640 641

(defun ns-delete-working-text()
642
  "Delete working text and clear `ns-working-overlay'."
643
  (interactive)
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  (cond
   ((and (overlayp ns-working-overlay)
         ;; Still alive?
         (overlay-buffer ns-working-overlay))
    (with-current-buffer (overlay-buffer ns-working-overlay)
      (delete-region (overlay-start ns-working-overlay)
                     (overlay-end ns-working-overlay))
      (delete-overlay ns-working-overlay)))
   ((integerp ns-working-overlay)
    (let ((msg (current-message))
          message-log-max)
      (setq msg (substring msg 0 (- (length msg) ns-working-overlay)))
      (message "%s" msg))))
  (setq ns-working-overlay nil))
658 659


660 661
(declare-function ns-convert-utf8-nfd-to-nfc "nsfns.m" (str))

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;;;; OS X file system Unicode UTF-8 NFD (decomposed form) support
;; Lisp code based on utf-8m.el, by Seiji Zenitani, Eiji Honjoh, and
;; Carsten Bormann.
(if (eq system-type 'darwin)
    (progn

      (defun ns-utf8-nfd-post-read-conversion (length)
	"Calls ns-convert-utf8-nfd-to-nfc to compose char sequences."
	(save-excursion
	  (save-restriction
	    (narrow-to-region (point) (+ (point) length))
	    (let ((str (buffer-string)))
	      (delete-region (point-min) (point-max))
	      (insert (ns-convert-utf8-nfd-to-nfc str))
	      (- (point-max) (point-min))
	      ))))

      (define-coding-system 'utf-8-nfd
	"UTF-8 NFD (decomposed) encoding."
	:coding-type 'utf-8
	:mnemonic ?U
	:charset-list '(unicode)
	:post-read-conversion 'ns-utf8-nfd-post-read-conversion)
      (set-file-name-coding-system 'utf-8-nfd)))

;; PENDING: disable composition-based display for Indic scripts as it
688
;;        is not working well under Nextstep for some reason
689
(set-char-table-range composition-function-table
690
                      '(#x0900 . #x0DFF) nil)
691 692 693 694


;;;; Inter-app communications support.

695 696
(defvar ns-input-text)			; nsterm.m

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(defun ns-insert-text ()
  "Insert contents of ns-input-text at point."
  (interactive)
  (insert ns-input-text)
  (setq ns-input-text nil))
702

703 704 705 706 707 708 709 710 711 712 713 714
(defun ns-insert-file ()
  "Insert contents of file ns-input-file like insert-file but with less
prompting.  If file is a directory perform a find-file on it."
  (interactive)
  (let ((f))
    (setq f (car ns-input-file))
    (setq ns-input-file (cdr ns-input-file))
    (if (file-directory-p f)
        (find-file f)
      (push-mark (+ (point) (car (cdr (insert-file-contents f))))))))

(defvar ns-select-overlay nil
715
  "Overlay used to highlight areas in files requested by Nextstep apps.")
716 717
(make-variable-buffer-local 'ns-select-overlay)

718 719
(defvar ns-input-line) 			; nsterm.m

720
(defun ns-open-file-select-line ()
721 722
  "Open a buffer containing the file `ns-input-file'.
Lines are highlighted according to `ns-input-line'."
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  (interactive)
  (ns-find-file)
  (cond
   ((and ns-input-line (buffer-modified-p))
    (if ns-select-overlay
        (setq ns-select-overlay (delete-overlay ns-select-overlay)))
    (deactivate-mark)
    (goto-line (if (consp ns-input-line)
                   (min (car ns-input-line) (cdr ns-input-line))
                 ns-input-line)))
   (ns-input-line
    (if (not ns-select-overlay)
        (overlay-put (setq ns-select-overlay (make-overlay (point-min) (point-min)))
                     'face 'highlight))
    (let ((beg (save-excursion
                 (goto-line (if (consp ns-input-line)
                                (min (car ns-input-line) (cdr ns-input-line))
                              ns-input-line))
                 (point)))
          (end (save-excursion
                 (goto-line (+ 1 (if (consp ns-input-line)
                                     (max (car ns-input-line) (cdr ns-input-line))
                                   ns-input-line)))
                 (point))))
      (move-overlay ns-select-overlay beg end)
      (deactivate-mark)
      (goto-char beg)))
   (t
    (if ns-select-overlay
        (setq ns-select-overlay (delete-overlay ns-select-overlay))))))

(defun ns-unselect-line ()
755
  "Removes any Nextstep highlight a buffer may contain."
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  (if ns-select-overlay
      (setq ns-select-overlay (delete-overlay ns-select-overlay))))

(add-hook 'first-change-hook 'ns-unselect-line)



;;;; Preferences handling.
764
(declare-function ns-get-resource "nsfns.m" (owner name))
765 766 767 768 769 770 771 772 773

(defun get-lisp-resource (arg1 arg2)
  (let ((res (ns-get-resource arg1 arg2)))
    (cond
     ((not res) 'unbound)
     ((string-equal (upcase res) "YES") t)
     ((string-equal (upcase res) "NO")  nil)
     (t (read res)))))

774
;; nsterm.m
775

776 777 778
(declare-function ns-read-file-name "nsfns.m"
		  (prompt &optional dir isLoad init))

779 780 781 782 783
;;;; File handling.

(defun ns-open-file-using-panel ()
  "Pop up open-file panel, and load the result in a buffer."
  (interactive)
784
  ;; Prompt dir defaultName isLoad initial.
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  (setq ns-input-file (ns-read-file-name "Select File to Load" nil t nil))
  (if ns-input-file
      (and (setq ns-input-file (list ns-input-file)) (ns-find-file))))

(defun ns-write-file-using-panel ()
  "Pop up save-file panel, and save buffer in resulting name."
  (interactive)
  (let (ns-output-file)
793
    ;; Prompt dir defaultName isLoad initial.
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    (setq ns-output-file (ns-read-file-name "Save As" nil nil nil))
    (message ns-output-file)
    (if ns-output-file (write-file ns-output-file))))

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(defcustom ns-pop-up-frames 'fresh
  "Non-nil means open files upon request from the Workspace in a new frame.
800
If t, always do so.  Any other non-nil value means open a new frame
801 802 803 804 805 806
unless the current buffer is a scratch buffer."
  :type '(choice (const :tag "Never" nil)
                 (const :tag "Always" t)
                 (other :tag "Except for scratch buffer" fresh))
  :version "23.1"
  :group 'ns)
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(declare-function ns-hide-emacs "nsfns.m" (on))

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(defun ns-find-file ()
  "Do a find-file with the ns-input-file as argument."
  (interactive)
  (let ((f) (file) (bufwin1) (bufwin2))
    (setq f (file-truename (car ns-input-file)))
    (setq ns-input-file (cdr ns-input-file))
    (setq file (find-file-noselect f))
    (setq bufwin1 (get-buffer-window file 'visible))
    (setq bufwin2 (get-buffer-window "*scratch*" 'visibile))
    (cond
     (bufwin1
      (select-frame (window-frame bufwin1))
      (raise-frame (window-frame bufwin1))
      (select-window bufwin1))
     ((and (eq ns-pop-up-frames 'fresh) bufwin2)
      (ns-hide-emacs 'activate)
      (select-frame (window-frame bufwin2))
      (raise-frame (window-frame bufwin2))
      (select-window bufwin2)
      (find-file f))
     (ns-pop-up-frames
      (ns-hide-emacs 'activate)
      (let ((pop-up-frames t)) (pop-to-buffer file nil)))
     (t
      (ns-hide-emacs 'activate)
      (find-file f)))))



;;;; Frame-related functions.

841
;; Don't show the frame name; that's redundant with Nextstep.
842 843 844 845 846 847 848 849 850
(setq-default mode-line-frame-identification '("  "))

;; You say tomAYto, I say tomAHto..
(defvaralias 'ns-option-modifier 'ns-alternate-modifier)

(defun ns-do-hide-emacs ()
  (interactive)
  (ns-hide-emacs t))

851 852
(declare-function ns-hide-others "nsfns.m" ())

853 854 855 856
(defun ns-do-hide-others ()
  (interactive)
  (ns-hide-others))

857 858
(declare-function ns-emacs-info-panel "nsfns.m" ())

859 860 861 862 863 864 865 866 867 868 869 870 871
(defun ns-do-emacs-info-panel ()
  (interactive)
  (ns-emacs-info-panel))

(defun ns-next-frame ()
  "Switch to next visible frame."
  (interactive)
  (other-frame 1))
(defun ns-prev-frame ()
  "Switch to previous visible frame."
  (interactive)
  (other-frame -1))

872
;; If no position specified, make new frame offset by 25 from current.
873
(defvar parameters)		     ; dynamically bound in make-frame
874
(add-hook 'before-make-frame-hook
875 876 877 878 879 880 881 882 883 884 885 886 887 888
          (lambda ()
            (let ((left (cdr (assq 'left (frame-parameters))))
                  (top (cdr (assq 'top (frame-parameters)))))
              (if (consp left) (setq left (cadr left)))
              (if (consp top) (setq top (cadr top)))
              (cond
               ((or (assq 'top parameters) (assq 'left parameters)))
               ((or (not left) (not top)))
               (t
                (setq parameters (cons (cons 'left (+ left 25))
                                       (cons (cons 'top (+ top 25))
                                             parameters))))))))

;; frame will be focused anyway, so select it
889
;; (if this is not done, modeline is dimmed until first interaction)
890 891
(add-hook 'after-make-frame-functions 'select-frame)

892 893 894
(defvar tool-bar-mode)
(declare-function tool-bar-mode "tool-bar" (&optional arg))

895 896 897 898 899 900
;; Based on a function by David Reitter <dreitter@inf.ed.ac.uk> ;
;; see http://lists.gnu.org/archive/html/emacs-devel/2005-09/msg00681.html .
(defun ns-toggle-toolbar (&optional frame)
  "Switches the tool bar on and off in frame FRAME.
 If FRAME is nil, the change applies to the selected frame."
  (interactive)
901 902
  (modify-frame-parameters
   frame (list (cons 'tool-bar-lines
903 904 905 906 907 908 909 910
		       (if (> (or (frame-parameter frame 'tool-bar-lines) 0) 0)
				   0 1)) ))
  (if (not tool-bar-mode) (tool-bar-mode t)))



;;;; Dialog-related functions.

911

912 913 914 915 916
;; Ask user for confirm before printing.  Due to Kevin Rodgers.
(defun ns-print-buffer ()
  "Interactive front-end to `print-buffer': asks for user confirmation first."
  (interactive)
  (if (and (interactive-p)
917 918 919 920 921 922 923 924 925
           (or (listp last-nonmenu-event)
               (and (char-or-string-p (event-basic-type last-command-event))
                    (memq 'super (event-modifiers last-command-event)))))
      (let ((last-nonmenu-event (if (listp last-nonmenu-event)
                                    last-nonmenu-event
                                  ;; Fake it:
                                  `(mouse-1 POSITION 1))))
        (if (y-or-n-p (format "Print buffer %s? " (buffer-name)))
            (print-buffer)
926 927 928 929 930 931 932 933 934 935
	  (error "Cancelled")))
    (print-buffer)))


;;;; Font support.

;; Needed for font listing functions under both backend and normal
(setq scalable-fonts-allowed t)

;; Set to use font panel instead
936
(declare-function ns-popup-font-panel "nsfns.m" (&optional frame))
937 938 939 940
(defalias 'generate-fontset-menu 'ns-popup-font-panel "Pop up the font panel.
This function has been overloaded in NS.")
(defalias 'mouse-set-font 'ns-popup-font-panel "Pop up the font panel.
This function has been overloaded in NS.")
941

942 943 944 945
;; nsterm.m
(defvar ns-input-font)
(defvar ns-input-fontsize)

946 947 948 949 950 951 952 953 954 955 956 957 958 959
(defun ns-respond-to-change-font ()
  "Respond to changeFont: event, expecting ns-input-font and\n\
ns-input-fontsize of new font."
  (interactive)
  (modify-frame-parameters (selected-frame)
                           (list (cons 'font ns-input-font)
                                 (cons 'fontsize ns-input-fontsize)))
  (set-frame-font ns-input-font))


;; Default fontset for Mac OS X.  This is mainly here to show how a fontset
;; can be set up manually.  Ordinarily, fontsets are auto-created whenever
;; a font is chosen by 
(defvar ns-standard-fontset-spec
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  ;; Only some code supports this so far, so use uglier XLFD version
  ;; "-ns-*-*-*-*-*-10-*-*-*-*-*-fontset-standard,latin:Courier,han:Kai"
  (mapconcat 'identity
             '("-ns-*-*-*-*-*-10-*-*-*-*-*-fontset-standard"
               "latin:-*-Courier-*-*-*-*-10-*-*-*-*-*-iso10646-1"
               "han:-*-Kai-*-*-*-*-10-*-*-*-*-*-iso10646-1"
               "cyrillic:-*-Trebuchet$MS-*-*-*-*-10-*-*-*-*-*-iso10646-1")
             ",")
  "String of fontset spec of the standard fontset.
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This defines a fontset consisting of the Courier and other fonts that
come with OS X\".
See the documentation of `create-fontset-from-fontset-spec for the format.")

973
;; Conditional on new-fontset so bootstrapping works on non-GUI compiles.
974 975 976
(if (fboundp 'new-fontset)
    (progn
      ;; Setup the default fontset.
977
      (create-default-fontset)
978
      ;; Create the standard fontset.
979 980 981 982 983 984
      (condition-case err
	  (create-fontset-from-fontset-spec ns-standard-fontset-spec t)
	(error (display-warning 
		'initialization
		(format "Creation of the standard fontset failed: %s" err)
		:error)))))
985

986 987
;;(push (cons 'font "-ns-*-*-*-*-*-10-*-*-*-*-*-fontset-standard")
;;      default-frame-alist)
988

989
;; Add some additional scripts to var we use for fontset generation.
990 991 992
(setq script-representative-chars
      (cons '(kana #xff8a)
	    (cons '(symbol #x2295 #x2287 #x25a1)
993
                  script-representative-chars)))
994 995 996 997


;;;; Pasteboard support.

998 999
(declare-function ns-get-cut-buffer-internal "nsselect.m" (buffer))

1000 1001 1002 1003
(defun ns-get-pasteboard ()
  "Returns the value of the pasteboard."
  (ns-get-cut-buffer-internal 'PRIMARY))

1004 1005
(declare-function ns-store-cut-buffer-internal "nsselect.m" (buffer string))

1006
(defun ns-set-pasteboard (string)
1007
  "Store STRING into the pasteboard of the Nextstep display server."
1008 1009 1010 1011
  ;; Check the data type of STRING.
  (if (not (stringp string)) (error "Nonstring given to pasteboard"))
  (ns-store-cut-buffer-internal 'PRIMARY string))

1012 1013
;; We keep track of the last text selected here, so we can check the
;; current selection against it, and avoid passing back our own text
1014
;; from x-cut-buffer-or-selection-value.
1015 1016
(defvar ns-last-selected-text nil)

1017
(defun x-select-text (text &optional push)
1018
  "Put TEXT, a string, on the pasteboard."
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  ;; Don't send the pasteboard too much text.
  ;; It becomes slow, and if really big it causes errors.
  (ns-set-pasteboard text)
  (setq ns-last-selected-text text))

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;; Return the value of the current Nextstep selection.  For
;; compatibility with older Nextstep applications, this checks cut
;; buffer 0 before retrieving the value of the primary selection.
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(defun x-cut-buffer-or-selection-value ()
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  (let (text)
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    ;; Consult the selection, then the cut buffer.  Treat empty strings
    ;; as if they were unset.
    (or text (setq text (ns-get-pasteboard)))
    (if (string= text "") (setq text nil))
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    (cond
     ((not text) nil)
     ((eq text ns-last-selected-text) nil)
     ((string= text ns-last-selected-text)
      ;; Record the newer string, so subsequent calls can use the `eq' test.
      (setq ns-last-selected-text text)
      nil)
     (t
      (setq ns-last-selected-text text)))))

(defun ns-copy-including-secondary ()
  (interactive)
  (call-interactively 'kill-ring-save)
  (ns-store-cut-buffer-internal 'SECONDARY
				(buffer-substring (point) (mark t))))
(defun ns-paste-secondary ()
  (interactive)
  (insert (ns-get-cut-buffer-internal 'SECONDARY)))

;; PENDING: not sure what to do here.. for now interprog- are set in
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;; init-fn-keys, and unsure whether these x- settings have an effect.
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;;(setq interprogram-cut-function 'x-select-text
;;      interprogram-paste-function 'x-cut-buffer-or-selection-value)
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;; These only needed if above not working.
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(set-face-background 'region "ns_selection_color")



;;;; Scrollbar handling.

(global-set-key [vertical-scroll-bar down-mouse-1] 'ns-handle-scroll-bar-event)
(global-unset-key [vertical-scroll-bar mouse-1])
(global-unset-key [vertical-scroll-bar drag-mouse-1])

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(declare-function scroll-bar-scale "scroll-bar" (num-denom whole))

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(defun ns-scroll-bar-move (event)
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  "Scroll the frame according to a Nextstep scroller event."
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  (interactive "e")
  (let* ((pos (event-end event))
         (window (nth 0 pos))
         (scale (nth 2 pos)))
    (save-excursion
      (set-buffer (window-buffer window))
      (cond
       ((eq (car scale) (cdr scale))
	(goto-char (point-max)))
       ((= (car scale) 0)
	(goto-char (point-min)))
       (t
	(goto-char (+ (point-min) 1
		      (scroll-bar-scale scale (- (point-max) (point-min)))))))
      (beginning-of-line)
      (set-window-start window (point))
      (vertical-motion (/ (window-height window) 2) window))))

(defun ns-handle-scroll-bar-event (event)
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  "Handle scroll bar EVENT to emulate Nextstep style scrolling."
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  (interactive "e")
  (let* ((position (event-start event))
	 (bar-part (nth 4 position))
	 (window (nth 0 position))
	 (old-window (selected-window)))
    (cond
     ((eq bar-part 'ratio)
      (ns-scroll-bar-move event))
     ((eq bar-part 'handle)
      (if (eq window (selected-window))
	  (track-mouse (ns-scroll-bar-move event))
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        ;; track-mouse faster for selected window, slower for unselected.
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	(ns-scroll-bar-move event)))
     (t
      (select-window window)
      (cond
       ((eq bar-part 'up)
	(goto-char (window-start window))
	(scroll-down 1))
       ((eq bar-part 'above-handle)
	(scroll-down))
       ((eq bar-part 'below-handle)
	(scroll-up))
       ((eq bar-part 'down)
	(goto-char (window-start window))
	(scroll-up 1)))
      (select-window old-window)))))


;;;; Color support.

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(declare-function ns-list-colors "nsfns.m" (&optional frame))

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(defvar x-colors (ns-list-colors)
  "The list of colors defined in non-PANTONE color files.")

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(defun xw-defined-colors (&optional frame)
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  "Return a list of colors supported for a particular frame.
The argument FRAME specifies which frame to try.
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The value may be different for frames on different Nextstep displays."
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  (or frame (setq frame (selected-frame)))
  (let ((all-colors x-colors)
	(this-color nil)
	(defined-colors nil))
    (while all-colors
      (setq this-color (car all-colors)
	    all-colors (cdr all-colors))
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      ;; (and (face-color-supported-p frame this-color t)
      (setq defined-colors (cons this-color defined-colors))) ;;)
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    defined-colors))

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(declare-function ns-set-alpha "nsfns.m" (color alpha))

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;; Convenience and work-around for fact that set color fns now require named.
(defun ns-set-background-alpha (alpha)
  "Sets alpha (opacity) of background.
Set from 0.0 (fully transparent) to 1.0 (fully opaque; default).
Note, tranparency works better on Tiger (10.4) and higher."
  (interactive "nSet background alpha to: ")
  (let ((bgcolor (cdr (assq 'background-color (frame-parameters)))))
    (set-frame-parameter (selected-frame)
			 'background-color (ns-set-alpha bgcolor alpha))))

;; Functions for color panel + drag
(defun ns-face-at-pos (pos)
  (let* ((frame (car pos))
         (frame-pos (cons (cadr pos) (cddr pos)))
         (window (window-at (car frame-pos) (cdr frame-pos) frame))
         (window-pos (coordinates-in-window-p frame-pos window))
         (buffer (window-buffer window))
         (edges (window-edges window)))
    (cond
     ((not window-pos)
      nil)
     ((eq window-pos 'mode-line)
      'modeline)
     ((eq window-pos 'vertical-line)
      'default)
     ((consp window-pos)
      (save-excursion
        (set-buffer buffer)
        (let ((p (car (compute-motion (window-start window)
                                      (cons (nth 0 edges) (nth 1 edges))
                                      (window-end window)
                                      frame-pos
                                      (- (window-width window) 1)
                                      nil
                                      window))))
          (cond
           ((eq p (window-point window))
            'cursor)
           ((and mark-active (< (region-beginning) p) (< p (region-end)))
            'region)
           (t
	    (let ((faces (get-char-property p 'face window)))
	      (if (consp faces) (car faces) faces)))))))
     (t
      nil))))

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(defvar ns-input-color)			; nsterm.m

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(defun ns-set-foreground-at-mouse ()
  "Set the foreground color at the mouse location to ns-input-color."
  (interactive)
  (let* ((pos (mouse-position))
         (frame (car pos))
         (face (ns-face-at-pos pos)))
    (cond
     ((eq face 'cursor)
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      (modify-frame-parameters frame (list (cons 'cursor-color
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                                                 ns-input-color))))
     ((not face)
      (modify-frame-parameters frame (list (cons 'foreground-color
                                                 ns-input-color))))
     (t
      (set-face-foreground face ns-input-color frame)))))

(defun ns-set-background-at-mouse ()
  "Set the background color at the mouse location to ns-input-color."
  (interactive)
  (let* ((pos (mouse-position))
         (frame (car pos))
         (face (ns-face-at-pos pos)))
    (cond
     ((eq face 'cursor)
      (modify-frame-parameters frame (list (cons 'cursor-color
                                                 ns-input-color))))
     ((not face)
      (modify-frame-parameters frame (list (cons 'background-color
                                                 ns-input-color))))
     (t
      (set-face-background face ns-input-color frame)))))

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;; Set some options to be as Nextstep-like as possible.
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(setq frame-title-format t
      icon-title-format t)


(defvar ns-initialized nil
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  "Non-nil if Nextstep windowing has been initialized.")
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(declare-function ns-list-services "nsfns.m" ())
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(declare-function x-open-connection "nsfns.m"
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                  (display &optional xrm-string must-succeed))
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;; Do the actual Nextstep Windows setup here; the above code just
;; defines functions and variables that we use now.
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(defun ns-initialize-window-system ()
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  "Initialize Emacs for Nextstep (Cocoa / GNUstep) windowing."
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  ;; PENDING: not needed?
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  (setq command-line-args (ns-handle-args command-line-args))

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  (x-open-connection (system-name) nil t)
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  (dolist (service (ns-list-services))
      (if (eq (car service) 'undefined)
	  (ns-define-service (cdr service))
	(define-key global-map (vector (car service))
	  (ns-define-service (cdr service)))))
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  (if (and (eq (get-lisp-resource nil "NXAutoLaunch") t)
	   (eq (get-lisp-resource nil "HideOnAutoLaunch") t))
      (add-hook 'after-init-hook 'ns-do-hide-emacs))

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  ;; FIXME: This will surely lead to "MODIFIED OUTSIDE CUSTOM" warnings.
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  (menu-bar-mode (if (get-lisp-resource nil "Menus") 1 -1))
  (mouse-wheel-mode 1)

  (setq ns-initialized t))

(add-to-list 'handle-args-function-alist '(ns . ns-handle-args))
(add-to-list 'frame-creation-function-alist '(ns . x-create-frame-with-faces))
(add-to-list 'window-system-initialization-alist '(ns . ns-initialize-window-system))


(provide 'ns-win)

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;; arch-tag: eb138a45-4e2e-4d68-b1c9-a39665731644
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;;; ns-win.el ends here