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|
;;; w3-xemac.el --- XEmacs specific functions for emacs-w3
;; Author: wmperry
;; Created: 1998/01/09 14:38:05
;; Version: 1.24
;; Keywords: faces, help, mouse, hypermedia
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;;; Copyright (c) 1993 - 1996 by William M. Perry <wmperry@cs.indiana.edu>
;;; Copyright (c) 1996, 1997 Free Software Foundation, Inc.
;;;
;;; 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 2, 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; see the file COPYING. If not, write to the
;;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
;;; Boston, MA 02111-1307, USA.
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
(require 'w3-imap)
(require 'images)
(require 'w3-widget)
(require 'w3-menu)
(require 'w3-forms)
(require 'w3-script)
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;;; Enhancements For XEmacs
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
(defun w3-text-pixel-width (str &optional face)
"Return the pixel-width of a chunk of text STR with face FACE."
(let ((glyph (make-glyph str))
(todo (if (listp face) face (list face)))
(max 0))
(while (progn (set-glyph-face glyph (pop todo)) todo)
(setq max (max (glyph-width glyph) max)))
max))
(defun w3-mouse-handler (e)
"Function to message the url under the mouse cursor"
(interactive "e")
(let* ((pt (event-point e))
(good (eq (event-window e) (selected-window)))
(mouse-events))
(if (not (and good pt (number-or-marker-p pt)))
nil
(if (and inhibit-help-echo w3-track-mouse)
(widget-echo-help pt))
(setq mouse-events (w3-script-find-event-handlers pt 'mouse))
(if (assq 'onmouseover mouse-events)
(w3-script-evaluate-form (cdr (assq 'onmouseover mouse-events)))))))
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;;; Functions to build menus of urls
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
(defun w3-setup-version-specifics ()
"Set up routine for XEmacs 19.12 or later"
;; Create the toolbar buttons
(and (featurep 'toolbar)
(w3-toolbar-make-buttons))
;; Register the default set of image conversion utilities
(image-register-netpbm-utilities)
;; Add our menus, but make sure that we do it to the global menubar
;; not the current one, which could be anything, but usually GNUS or
;; VM if not the default.
(if (featurep 'menubar)
(let ((current-menubar (default-value 'current-menubar)))
(if current-menubar
(add-submenu '("Help") (cons "WWW" (cdr w3-menu-help-menu))))))
;; FIXME FIXME: Do sexy things to the default modeline for Emacs-W3
;; The following is a workaround for XEmacs 19.14 and XEmacs 20.0
;; The text property implementation is badly broken - you could not have
;; a text property with a `nil' value. Bad bad bad.
(if (or (and (= emacs-major-version 20)
(= emacs-minor-version 0))
(and (= emacs-major-version 19)
(= emacs-minor-version 14)))
(defun text-prop-extent-paste-function (ext from to)
(let ((prop (extent-property ext 'text-prop nil))
(val nil))
(if (null prop)
(error "Internal error: no text-prop"))
(setq val (extent-property ext prop nil))
(put-text-property from to prop val nil)
nil))
)
)
(defun w3-store-in-clipboard (str)
"Store string STR into the clipboard in X"
(cond
((eq (device-type) 'tty)
nil)
((eq (device-type) 'x)
(x-own-selection str))
((eq (device-type) 'ns)
)
(t nil)))
(defun w3-mode-motion-hook (e)
(let* ((glyph (event-glyph e))
(x (and glyph (event-glyph-x-pixel e)))
(y (and glyph (event-glyph-y-pixel e)))
(widget (and glyph (glyph-property glyph 'widget)))
(usemap (and widget (w3-image-widget-usemap widget)))
(ismap (and widget (widget-get widget 'ismap)))
(echo (and widget (widget-get widget 'href))))
(cond
(usemap
(setq echo (w3-point-in-map (vector x y) usemap t)))
(ismap
(setq echo (format "%s?%d,%d" echo x y)))
(t
nil))
(and echo (message "%s" echo))))
(defun w3-mode-version-specifics ()
"XEmacs specific stuff for w3-mode"
(if (featurep 'mouse)
(progn
(if (not w3-track-mouse)
(setq inhibit-help-echo nil))
(setq mode-motion-hook 'w3-mouse-handler)))
(case (device-type)
((tty stream) ; TTY or batch
nil)
(otherwise
(w3-add-toolbar-to-buffer)))
(setq mode-popup-menu w3-popup-menu))
(if (string-match "19\\.13" emacs-version)
;; This is all from Vladimir Alexiev <vladimir@cs.ualberta.ca>
(progn
(require 'advice)
(declare (special widget-use-overlay-change))
(defadvice add-text-properties (before face-list activate)
"Allow a list of faces (ignore all but first one)."
(let ((faces (plist-get props 'face)))
(if (listp faces)
(plist-put props 'face (car faces)))))
(defadvice set-extent-property (before face-list activate)
"Allow a list of faces (ignore all but first one)."
(if (and (eq property 'face) (listp value))
(setq value (car value))))
(defadvice insert-char (before inherit-ignore
(char &optional count inherit buffer)
activate)
"Accept and ignore a third arg INHERIT."
(or (bufferp inherit) (setq inherit buffer)))
(defun font-height (font) 1)
(defun font-width (font) 1) ; works for tty
(defalias 'get-char-property 'get-text-property)
(defalias 'extent-object 'extent-buffer)
(defvar shell-command-switch "-c") ; for mm
;; for x-overlay
(defun extent-list (&optional buffer from to)
"Return a list of all extents in BUFFER between FROM and TO
\(see mapcar-extents\)."
(mapcar-extents 'identity nil buffer from to))
;; for custom/widget
(setq widget-use-overlay-change nil) ; slower, but works
(defadvice add-hook (before ignore
(hook function &optional append ignore)
activate)
"Accept and ignore a fourth argument.")
(defadvice remove-hook (before ignore
(hook function &optional ignore) activate)
"Accept and ignore a third argument.")
(defun valid-image-instantiator-format-p (format)
(valid-instantiator-p
(vector format :file (concat "foo." (symbol-name format)))
'image))
(defadvice make-sparse-keymap (before ignore (&optional name) activate)
"Accept and ignore an optional arg NAME.")
))
(require 'w3-toolbar)
(provide 'w3-xemacs)
(provide 'w3-xemac)
|
