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Diffstat (limited to 'lisp/term/pgtk-win.el')
-rw-r--r-- | lisp/term/pgtk-win.el | 429 |
1 files changed, 429 insertions, 0 deletions
diff --git a/lisp/term/pgtk-win.el b/lisp/term/pgtk-win.el new file mode 100644 index 00000000000..203cce442d1 --- /dev/null +++ b/lisp/term/pgtk-win.el @@ -0,0 +1,429 @@ +;;; + +;;; Code: +(eval-when-compile (require 'cl-lib)) +(or (featurep 'pgtk) + (error "%s: Loading pgtk-win.el but not compiled for pure Gtk+-3." + (invocation-name))) + +;; Documentation-purposes only: actually loaded in loadup.el. +(require 'term/common-win) +(require 'frame) +(require 'mouse) +(require 'scroll-bar) +(require 'faces) +(require 'menu-bar) +(require 'fontset) +(require 'dnd) + +(defgroup pgtk nil + "Pure-GTK specific features." + :group 'environment) + +;;;; Command line argument handling. + +(defvar x-invocation-args) +;; Set in term/common-win.el; currently unused by Gtk's x-open-connection. +(defvar x-command-line-resources) + +;; pgtkterm.c. +(defvar pgtk-input-file) + +(defun pgtk-handle-nxopen (_switch &optional temp) + (setq unread-command-events (append unread-command-events + (if temp '(pgtk-open-temp-file) + '(pgtk-open-file))) + pgtk-input-file (append pgtk-input-file (list (pop x-invocation-args))))) + +(defun pgtk-handle-nxopentemp (switch) + (pgtk-handle-nxopen switch t)) + +(defun pgtk-ignore-1-arg (_switch) + (setq x-invocation-args (cdr x-invocation-args))) + +;;;; File handling. + +(defun x-file-dialog (prompt dir default_filename mustmatch only_dir_p) +"Read file name, prompting with PROMPT in directory DIR. +Use a file selection dialog. Select DEFAULT-FILENAME in the dialog's file +selection box, if specified. If MUSTMATCH is non-nil, the returned file +or directory must exist. + +This function is only defined on PGTK, MS Windows, and X Windows with the +Motif or Gtk toolkits. With the Motif toolkit, ONLY-DIR-P is ignored. +Otherwise, if ONLY-DIR-P is non-nil, the user can only select directories." + (pgtk-read-file-name prompt dir mustmatch default_filename only_dir_p)) + +(defun pgtk-open-file-using-panel () + "Pop up open-file panel, and load the result in a buffer." + (interactive) + ;; Prompt dir defaultName isLoad initial. + (setq pgtk-input-file (pgtk-read-file-name "Select File to Load" nil t nil)) + (if pgtk-input-file + (and (setq pgtk-input-file (list pgtk-input-file)) (pgtk-find-file)))) + +(defun pgtk-write-file-using-panel () + "Pop up save-file panel, and save buffer in resulting name." + (interactive) + (let (pgtk-output-file) + ;; Prompt dir defaultName isLoad initial. + (setq pgtk-output-file (pgtk-read-file-name "Save As" nil nil nil)) + (message pgtk-output-file) + (if pgtk-output-file (write-file pgtk-output-file)))) + +(defcustom pgtk-pop-up-frames 'fresh + "Non-nil means open files upon request from the Workspace in a new frame. +If t, always do so. Any other non-nil value means open a new frame +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 'pgtk) + +(declare-function pgtk-hide-emacs "pgtkfns.c" (on)) + +(defun pgtk-find-file () + "Do a `find-file' with the `pgtk-input-file' as argument." + (interactive) + (let* ((f (file-truename + (expand-file-name (pop pgtk-input-file) + command-line-default-directory))) + (file (find-file-noselect f)) + (bufwin1 (get-buffer-window file 'visible)) + (bufwin2 (get-buffer-window "*scratch*" 'visible))) + (cond + (bufwin1 + (select-frame (window-frame bufwin1)) + (raise-frame (window-frame bufwin1)) + (select-window bufwin1)) + ((and (eq pgtk-pop-up-frames 'fresh) bufwin2) + (pgtk-hide-emacs 'activate) + (select-frame (window-frame bufwin2)) + (raise-frame (window-frame bufwin2)) + (select-window bufwin2) + (find-file f)) + (pgtk-pop-up-frames + (pgtk-hide-emacs 'activate) + (let ((pop-up-frames t)) (pop-to-buffer file nil))) + (t + (pgtk-hide-emacs 'activate) + (find-file f))))) + + +(defun pgtk-drag-n-drop (event &optional new-frame force-text) + "Edit the files listed in the drag-n-drop EVENT. +Switch to a buffer editing the last file dropped." + (interactive "e") + (let* ((window (posn-window (event-start event))) + (arg (car (cdr (cdr event)))) + (type (car arg)) + (data (car (cdr arg))) + (url-or-string (cond ((eq type 'file) + (concat "file:" data)) + (t data)))) + (set-frame-selected-window nil window) + (when new-frame + (select-frame (make-frame))) + (raise-frame) + (setq window (selected-window)) + (if force-text + (dnd-insert-text window 'private data) + (dnd-handle-one-url window 'private url-or-string)))) + + +(defun pgtk-drag-n-drop-other-frame (event) + "Edit the files listed in the drag-n-drop EVENT, in other frames. +May create new frames, or reuse existing ones. The frame editing +the last file dropped is selected." + (interactive "e") + (pgtk-drag-n-drop event t)) + +(defun pgtk-drag-n-drop-as-text (event) + "Drop the data in EVENT as text." + (interactive "e") + (pgtk-drag-n-drop event nil t)) + +(defun pgtk-drag-n-drop-as-text-other-frame (event) + "Drop the data in EVENT as text in a new frame." + (interactive "e") + (pgtk-drag-n-drop event t t)) + +(global-set-key [drag-n-drop] 'pgtk-drag-n-drop) +(global-set-key [C-drag-n-drop] 'pgtk-drag-n-drop-other-frame) +(global-set-key [M-drag-n-drop] 'pgtk-drag-n-drop-as-text) +(global-set-key [C-M-drag-n-drop] 'pgtk-drag-n-drop-as-text-other-frame) + +;;;; Frame-related functions. + +;; pgtkterm.c +(defvar pgtk-alternate-modifier) +(defvar pgtk-right-alternate-modifier) +(defvar pgtk-right-command-modifier) +(defvar pgtk-right-control-modifier) + +;; You say tomAYto, I say tomAHto.. +(defvaralias 'pgtk-option-modifier 'pgtk-alternate-modifier) +(defvaralias 'pgtk-right-option-modifier 'pgtk-right-alternate-modifier) + +(defun pgtk-do-hide-emacs () + (interactive) + (pgtk-hide-emacs t)) + +(declare-function pgtk-hide-others "pgtkfns.c" ()) + +(defun pgtk-do-hide-others () + (interactive) + (pgtk-hide-others)) + +(declare-function pgtk-emacs-info-panel "pgtkfns.c" ()) + +(defun pgtk-do-emacs-info-panel () + (interactive) + (pgtk-emacs-info-panel)) + +(defun pgtk-next-frame () + "Switch to next visible frame." + (interactive) + (other-frame 1)) + +(defun pgtk-prev-frame () + "Switch to previous visible frame." + (interactive) + (other-frame -1)) + +;; Frame will be focused anyway, so select it +;; (if this is not done, mode line is dimmed until first interaction) +;; FIXME: Sounds like we're working around a bug in the underlying code. +(add-hook 'after-make-frame-functions 'select-frame) + +(defvar tool-bar-mode) +(declare-function tool-bar-mode "tool-bar" (&optional arg)) + +;; Based on a function by David Reitter <dreitter@inf.ed.ac.uk> ; +;; see https://lists.gnu.org/archive/html/emacs-devel/2005-09/msg00681.html . +(defun pgtk-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) + (modify-frame-parameters + frame (list (cons 'tool-bar-lines + (if (> (or (frame-parameter frame 'tool-bar-lines) 0) 0) + 0 1)) )) + (if (not tool-bar-mode) (tool-bar-mode t))) + + +;;;; Dialog-related functions. + +;; Ask user for confirm before printing. Due to Kevin Rodgers. +(defun pgtk-print-buffer () + "Interactive front-end to `print-buffer': asks for user confirmation first." + (interactive) + (if (and (called-interactively-p 'interactive) + (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) + (error "Canceled"))) + (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 +(declare-function pgtk-popup-font-panel "pgtkfns.c" (&optional frame)) +(defalias 'x-select-font 'pgtk-popup-font-panel "Pop up the font panel. +This function has been overloaded in Nextstep.") +(defalias 'mouse-set-font 'pgtk-popup-font-panel "Pop up the font panel. +This function has been overloaded in Nextstep.") + +;; pgtkterm.c +(defvar pgtk-input-font) +(defvar pgtk-input-fontsize) + +(defun pgtk-respond-to-change-font () + "Respond to changeFont: event, expecting `pgtk-input-font' and\n\ +`pgtk-input-fontsize' of new font." + (interactive) + (modify-frame-parameters (selected-frame) + (list (cons 'fontsize pgtk-input-fontsize))) + (modify-frame-parameters (selected-frame) + (list (cons 'font pgtk-input-font))) + (set-frame-font pgtk-input-font)) + + +;; Default fontset. 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 pgtk-standard-fontset-spec + ;; Only some code supports this so far, so use uglier XLFD version + ;; "-pgtk-*-*-*-*-*-10-*-*-*-*-*-fontset-standard,latin:Courier,han:Kai" + (mapconcat 'identity + '("-*-Monospace-*-*-*-*-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. +This defines a fontset consisting of the Courier and other fonts. +See the documentation of `create-fontset-from-fontset-spec' for the format.") + + +;;;; Pasteboard support. + +(define-obsolete-function-alias 'pgtk-store-cut-buffer-internal + 'gui-set-selection "24.1") + + +(defun pgtk-copy-including-secondary () + (interactive) + (call-interactively 'kill-ring-save) + (gui-set-selection 'SECONDARY (buffer-substring (point) (mark t)))) + +(defun pgtk-paste-secondary () + (interactive) + (insert (gui-get-selection 'SECONDARY))) + + +;;;; Color support. + +;; Functions for color panel + drag +(defun pgtk-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) + 'mode-line) + ((eq window-pos 'vertical-line) + 'default) + ((consp window-pos) + (with-current-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)))) + +(defun pgtk-suspend-error () + ;; Don't allow suspending if any of the frames are PGTK frames. + (if (memq 'pgtk (mapcar 'window-system (frame-list))) + (error "Cannot suspend Emacs while a PGTK GUI frame exists"))) + + +;; Set some options to be as Nextstep-like as possible. +(setq frame-title-format t + icon-title-format t) + + +(defvar pgtk-initialized nil + "Non-nil if pure-GTK windowing has been initialized.") + +(declare-function x-handle-args "common-win" (args)) +(declare-function x-open-connection "pgtkfns.c" + (display &optional xrm-string must-succeed)) +(declare-function pgtk-set-resource "pgtkfns.c" (owner name value)) + +;; Do the actual pure-GTK Windows setup here; the above code just +;; defines functions and variables that we use now. +(cl-defmethod window-system-initialization (&context (window-system pgtk) + &optional display) + "Initialize Emacs for pure-GTK windowing." + (cl-assert (not pgtk-initialized)) + + ;; PENDING: not needed? + (setq command-line-args (x-handle-args command-line-args)) + + ;; Make sure we have a valid resource name. + (or (stringp x-resource-name) + (let (i) + (setq x-resource-name (invocation-name)) + + ;; Change any . or * characters in x-resource-name to hyphens, + ;; so as not to choke when we use it in X resource queries. + (while (setq i (string-match "[.*]" x-resource-name)) + (aset x-resource-name i ?-)))) + + ;; Setup the default fontset. + (create-default-fontset) + ;; Create the standard fontset. + (condition-case err + (create-fontset-from-fontset-spec pgtk-standard-fontset-spec t) + (error (display-warning + 'initialization + (format "Creation of the standard fontset failed: %s" err) + :error))) + + (x-open-connection (or display + x-display-name) + x-command-line-resources + ;; Exit Emacs with fatal error if this fails and we + ;; are the initial display. + (= (length (frame-list)) 0)) + + (x-apply-session-resources) + + ;; Don't let Emacs suspend under PGTK. + (add-hook 'suspend-hook 'pgtk-suspend-error) + + (setq pgtk-initialized t)) + +;; Any display name is OK. +(add-to-list 'display-format-alist '(".*" . pgtk)) +(cl-defmethod handle-args-function (args &context (window-system pgtk)) + (x-handle-args args)) + +(cl-defmethod frame-creation-function (params &context (window-system pgtk)) + (x-create-frame-with-faces params)) + +(declare-function pgtk-own-selection-internal "pgtkselect.c" (selection value &optional frame)) +(declare-function pgtk-disown-selection-internal "pgtkselect.c" (selection &optional time_object terminal)) +(declare-function pgtk-selection-owner-p "pgtkselect.c" (&optional selection terminal)) +(declare-function pgtk-selection-exists-p "pgtkselect.c" (&optional selection terminal)) +(declare-function pgtk-get-selection-internal "pgtkselect.c" (selection-symbol target-type &optional time_stamp terminal)) + +(cl-defmethod gui-backend-set-selection (selection value + &context (window-system pgtk)) + (if value (pgtk-own-selection-internal selection value) + (pgtk-disown-selection-internal selection))) + +(cl-defmethod gui-backend-selection-owner-p (selection + &context (window-system pgtk)) + (pgtk-selection-owner-p selection)) + +(cl-defmethod gui-backend-selection-exists-p (selection + &context (window-system pgtk)) + (pgtk-selection-exists-p selection)) + +(cl-defmethod gui-backend-get-selection (selection-symbol target-type + &context (window-system pgtk)) + (pgtk-get-selection-internal selection-symbol target-type)) + +(provide 'pgtk-win) +(provide 'term/pgtk-win) + +;;; pgtk-win.el ends here |