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-rw-r--r--lisp/ChangeLog29
-rw-r--r--lisp/dired.el18
-rw-r--r--lisp/ffap.el23
-rw-r--r--lisp/files.el23
-rw-r--r--lisp/minibuffer.el56
5 files changed, 132 insertions, 17 deletions
diff --git a/lisp/ChangeLog b/lisp/ChangeLog
index 3f392f8183e..5c7d0a1e25d 100644
--- a/lisp/ChangeLog
+++ b/lisp/ChangeLog
@@ -1,3 +1,32 @@
+2009-11-25 Juri Linkov <juri@jurta.org>
+
+ Provide additional default values (file name at point or at the
+ current Dired line) via M-n for file reading minibuffers. (Bug#5010)
+
+ * minibuffer.el (read-file-name-defaults): New function.
+ (read-file-name): Reset `minibuffer-default' to nil when
+ it duplicates initial input `insdef'.
+ Bind `minibuffer-default-add-function' to lambda that
+ calls `read-file-name-defaults' in `minibuffer-selected-window'.
+ (minibuffer-insert-file-name-at-point): New command.
+
+ * files.el (file-name-at-point-functions): New defcustom.
+ (find-file-default): Remove defvar.
+ (find-file-read-args): Don't use `find-file-default'.
+ Move `minibuffer-with-setup-hook' that sets `minibuffer-default'
+ to `read-file-name'.
+ (find-file-literally): Use `read-file-name' with
+ `confirm-nonexistent-file-or-buffer'.
+
+ * ffap.el (ffap-guess-file-name-at-point): New autoloaded function.
+
+ * dired.el (dired-read-dir-and-switches):
+ Move `minibuffer-with-setup-hook' that sets `minibuffer-default'
+ to `read-file-name'.
+ (dired-file-name-at-point): New function.
+ (dired-mode): Add hook `dired-file-name-at-point' to
+ `file-name-at-point-functions'.
+
2009-11-25 Stefan Monnier <monnier@iro.umontreal.ca>
Really make the *Completions* window soft-dedicated (bug#5030).
diff --git a/lisp/dired.el b/lisp/dired.el
index 788c5be3289..17bb3449da9 100644
--- a/lisp/dired.el
+++ b/lisp/dired.el
@@ -599,12 +599,8 @@ Don't use that together with FILTER."
(if (next-read-file-uses-dialog-p)
(read-directory-name (format "Dired %s(directory): " str)
nil default-directory nil)
- (let ((default (and buffer-file-name
- (abbreviate-file-name buffer-file-name))))
- (minibuffer-with-setup-hook
- (lambda () (setq minibuffer-default default))
- (read-file-name (format "Dired %s(directory): " str)
- nil default-directory nil)))))))
+ (read-file-name (format "Dired %s(directory): " str)
+ nil default-directory nil)))))
;; We want to switch to a more sophisticated version of
;; dired-read-dir-and-switches like the following, if there is a way
@@ -659,6 +655,15 @@ Don't use that together with FILTER."
;; (read-file-name (format "Dired %s(directory): " str)
;; nil default-directory nil))))))))
+(defun dired-file-name-at-point ()
+ "Try to get a file name at point in the current dired buffer.
+This hook is inteneded to be put in `file-name-at-point-functions'."
+ (let ((filename (dired-get-filename nil t)))
+ (when filename
+ (if (file-directory-p filename)
+ (file-name-as-directory (abbreviate-file-name filename))
+ (abbreviate-file-name filename)))))
+
;;;###autoload (define-key ctl-x-map "d" 'dired)
;;;###autoload
(defun dired (dirname &optional switches)
@@ -1772,6 +1777,7 @@ Keybindings:
(when (featurep 'dnd)
(set (make-local-variable 'dnd-protocol-alist)
(append dired-dnd-protocol-alist dnd-protocol-alist)))
+ (add-hook 'file-name-at-point-functions 'dired-file-name-at-point nil t)
(add-hook 'isearch-mode-hook 'dired-isearch-filenames-setup nil t)
(run-mode-hooks 'dired-mode-hook))
diff --git a/lisp/ffap.el b/lisp/ffap.el
index a0e0d411206..7d3f279f724 100644
--- a/lisp/ffap.el
+++ b/lisp/ffap.el
@@ -1893,6 +1893,29 @@ Only intended for interactive use."
(call-interactively 'dired-at-point)))
+;;; Hooks to put in `file-name-at-point-functions':
+
+;;;###autoload
+(progn (defun ffap-guess-file-name-at-point ()
+ "Try to get a file name at point.
+This hook is inteneded to be put in `file-name-at-point-functions'."
+ (when (fboundp 'ffap-guesser)
+ ;; Logic from `ffap-read-file-or-url' and `dired-at-point-prompter'.
+ (let ((guess (ffap-guesser)))
+ (setq guess
+ (if (or (not guess)
+ (and (fboundp 'ffap-url-p)
+ (ffap-url-p guess))
+ (and (fboundp 'ffap-file-remote-p)
+ (ffap-file-remote-p guess)))
+ guess
+ (abbreviate-file-name (expand-file-name guess))))
+ (when guess
+ (if (file-directory-p guess)
+ (file-name-as-directory guess)
+ guess))))))
+
+
;;; Offer default global bindings (`ffap-bindings'):
(defvar ffap-bindings
diff --git a/lisp/files.el b/lisp/files.el
index 1bde2be0ef0..8478151cf78 100644
--- a/lisp/files.el
+++ b/lisp/files.el
@@ -411,6 +411,14 @@ and should return either a buffer or nil."
:type '(hook :options (cvs-dired-noselect dired-noselect))
:group 'find-file)
+;; FIXME: also add a hook for `(thing-at-point 'filename)'
+(defcustom file-name-at-point-functions '(ffap-guess-file-name-at-point)
+ "List of functions to try in sequence to get a file name at point.
+Each function should return either nil or a file name found at the
+location of point in the current buffer."
+ :type '(hook :options (ffap-guess-file-name-at-point))
+ :group 'find-file)
+
;;;It is not useful to make this a local variable.
;;;(put 'find-file-not-found-hooks 'permanent-local t)
(defvar find-file-not-found-functions nil
@@ -1275,9 +1283,6 @@ its documentation for additional customization information."
;;(make-frame-visible (window-frame old-window))
))
-(defvar find-file-default nil
- "Used within `find-file-read-args'.")
-
(defmacro minibuffer-with-setup-hook (fun &rest body)
"Add FUN to `minibuffer-setup-hook' while executing BODY.
BODY should use the minibuffer at most once.
@@ -1298,12 +1303,7 @@ Recursive uses of the minibuffer will not be affected."
(remove-hook 'minibuffer-setup-hook ,hook)))))
(defun find-file-read-args (prompt mustmatch)
- (list (let ((find-file-default
- (and buffer-file-name
- (abbreviate-file-name buffer-file-name))))
- (minibuffer-with-setup-hook
- (lambda () (setq minibuffer-default find-file-default))
- (read-file-name prompt nil default-directory mustmatch)))
+ (list (read-file-name prompt nil default-directory mustmatch)
t))
(defun find-file (filename &optional wildcards)
@@ -2020,7 +2020,10 @@ regardless of whether it was created literally or not.
In a Lisp program, if you want to be sure of accessing a file's
contents literally, you should create a temporary buffer and then read
the file contents into it using `insert-file-contents-literally'."
- (interactive "FFind file literally: ")
+ (interactive
+ (list (read-file-name
+ "Find file literally: " nil default-directory
+ (confirm-nonexistent-file-or-buffer))))
(switch-to-buffer (find-file-noselect filename nil t)))
(defvar after-find-file-from-revert-buffer nil)
diff --git a/lisp/minibuffer.el b/lisp/minibuffer.el
index fdf57f9a2f8..cfe4d6f90de 100644
--- a/lisp/minibuffer.el
+++ b/lisp/minibuffer.el
@@ -1321,6 +1321,32 @@ such as making the current buffer visit no file in the case of
(declare-function x-file-dialog "xfns.c"
(prompt dir &optional default-filename mustmatch only-dir-p))
+(defun read-file-name-defaults (&optional dir initial)
+ (let ((default
+ (cond
+ ;; With non-nil `initial', use `dir' as the first default.
+ ;; Essentially, this mean reversing the normal order of the
+ ;; current directory name and the current file name, i.e.
+ ;; 1. with normal file reading:
+ ;; 1.1. initial input is the current directory
+ ;; 1.2. the first default is the current file name
+ ;; 2. with non-nil `initial' (e.g. for `find-alternate-file'):
+ ;; 2.2. initial input is the current file name
+ ;; 2.1. the first default is the current directory
+ (initial (abbreviate-file-name dir))
+ ;; In file buffers, try to get the current file name
+ (buffer-file-name
+ (abbreviate-file-name buffer-file-name))))
+ (file-name-at-point
+ (run-hook-with-args-until-success 'file-name-at-point-functions)))
+ (when file-name-at-point
+ (setq default (delete-dups
+ (delete "" (delq nil (list file-name-at-point default))))))
+ ;; Append new defaults to the end of existing `minibuffer-default'.
+ (append
+ (if (listp minibuffer-default) minibuffer-default (list minibuffer-default))
+ (if (listp default) default (list default)))))
+
(defun read-file-name (prompt &optional dir default-filename mustmatch initial predicate)
"Read file name, prompting with PROMPT and completing in directory DIR.
Value is not expanded---you must call `expand-file-name' yourself.
@@ -1404,7 +1430,24 @@ and `read-file-name-function'."
(lexical-let ((dir (file-name-as-directory
(expand-file-name dir))))
(minibuffer-with-setup-hook
- (lambda () (setq default-directory dir))
+ (lambda ()
+ (setq default-directory dir)
+ ;; When the first default in `minibuffer-default'
+ ;; duplicates initial input `insdef',
+ ;; reset `minibuffer-default' to nil.
+ (when (equal (or (car-safe insdef) insdef)
+ (or (car-safe minibuffer-default)
+ minibuffer-default))
+ (setq minibuffer-default
+ (cdr-safe minibuffer-default)))
+ ;; On the first request on `M-n' fill
+ ;; `minibuffer-default' with a list of defaults
+ ;; relevant for file-name reading.
+ (set (make-local-variable 'minibuffer-default-add-function)
+ (lambda ()
+ (with-current-buffer
+ (window-buffer (minibuffer-selected-window))
+ (read-file-name-defaults dir initial)))))
(completing-read prompt 'read-file-name-internal
pred mustmatch insdef
'file-name-history default-filename)))
@@ -1997,6 +2040,17 @@ filter out additional entries (because TABLE migth not obey PRED)."
(when newstr
(completion-pcm-try-completion newstr table pred (length newstr)))))
+
+;; Miscellaneous
+
+(defun minibuffer-insert-file-name-at-point ()
+ "Get a file name at point in original buffer and insert it to minibuffer."
+ (interactive)
+ (let ((file-name-at-point
+ (with-current-buffer (window-buffer (minibuffer-selected-window))
+ (run-hook-with-args-until-success 'file-name-at-point-functions))))
+ (when file-name-at-point
+ (insert file-name-at-point))))
(provide 'minibuffer)