; Revert "Use eldoc-documentation-functions"

[gnu-emacs] / lisp / dnd.el

diff --git a/lisp/dnd.el b/lisp/dnd.el
index 7eb6395e280e17ee4b408f362d2867ec729f5b7c..b715eecad9f903a8d9d4028a318117a66f7856f2 100644 (file)
--- a/lisp/dnd.el
+++ b/lisp/dnd.el
@@ -1,10 +1,11 @@
-;;; dnd.el --- drag and drop support.
+;;; dnd.el --- drag and drop support
 
-;; Copyright (C) 2005, 2006, 2007, 2008 Free Software Foundation, Inc.
+;; Copyright (C) 2005-2016 Free Software Foundation, Inc.
 
-;; Author: Jan Dj\e,Ad\e(Brv <jan.h.d@swipnet.se>
-;; Maintainer: FSF
+;; Author: Jan Djärv <jan.h.d@swipnet.se>
+;; Maintainer: emacs-devel@gnu.org
 ;; Keywords: window, drag, drop
+;; Package: emacs
 
 ;; This file is part of GNU Emacs.
 
@@ -35,10 +36,10 @@
 
 ;;;###autoload
 (defcustom dnd-protocol-alist
-  '(("^file:///"  . dnd-open-local-file)       ; XDND format.
-    ("^file://"   . dnd-open-file)             ; URL with host
-    ("^file:"     . dnd-open-local-file)       ; Old KDE, Motif, Sun
-    ("^\\(https?\\|ftp\\|file\\|nfs\\)://" . dnd-open-file)
+  `((,(purecopy "^file:///")  . dnd-open-local-file)   ; XDND format.
+    (,(purecopy "^file://")   . dnd-open-file)         ; URL with host
+    (,(purecopy "^file:")     . dnd-open-local-file)   ; Old KDE, Motif, Sun
+    (,(purecopy "^\\(https?\\|ftp\\|file\\|nfs\\)://") . dnd-open-file)
    )
 
   "The functions to call for different protocols when a drop is made.
@@ -121,18 +122,29 @@ Return nil if URI is not a local file."
 
   ;; The hostname may be our hostname, in that case, convert to a local
   ;; file.  Otherwise return nil.  TODO:  How about an IP-address as hostname?
-  (let ((hostname (when (string-match "^file://\\([^/]*\\)" uri)
+  (let ((sysname (system-name)))
+    (let ((hostname (when (string-match "^file://\\([^/]*\\)" uri)
                      (downcase (match-string 1 uri))))
-       (system-name-no-dot
-        (downcase (if (string-match "^[^\\.]+" system-name)
-                      (match-string 0 system-name)
-                    system-name))))
-    (when (and hostname
-            (or (string-equal "localhost" hostname)
-                (string-equal (downcase system-name) hostname)
-                (string-equal system-name-no-dot hostname)))
-       (concat "file://" (substring uri (+ 7 (length hostname)))))))
-
+         (sysname-no-dot
+          (downcase (if (string-match "^[^\\.]+" sysname)
+                        (match-string 0 sysname)
+                      sysname))))
+      (when (and hostname
+                (or (string-equal "localhost" hostname)
+                    (string-equal (downcase sysname) hostname)
+                    (string-equal sysname-no-dot hostname)))
+       (concat "file://" (substring uri (+ 7 (length hostname))))))))
+
+(defsubst dnd-unescape-uri (uri)
+  (replace-regexp-in-string
+   "%[A-Fa-f0-9][A-Fa-f0-9]"
+   (lambda (arg)
+     (let ((str (make-string 1 0)))
+       (aset str 0 (string-to-number (substring arg 1) 16))
+       str))
+   uri t t))
+
+;; http://lists.gnu.org/archive/html/emacs-devel/2006-05/msg01060.html
 (defun dnd-get-local-file-name (uri &optional must-exist)
   "Return file name converted from file:/// or file: syntax.
 URI is the uri for the file.  If MUST-EXIST is given and non-nil,
@@ -141,24 +153,18 @@ Return nil if URI is not a local file."
   (let ((f (cond ((string-match "^file:///" uri)       ; XDND format.
                  (substring uri (1- (match-end 0))))
                 ((string-match "^file:" uri)           ; Old KDE, Motif, Sun
-                 (substring uri (match-end 0))))))
-    (when (and f must-exist)
-      (setq f (replace-regexp-in-string
-              "%[A-Fa-f0-9][A-Fa-f0-9]"
-              (lambda (arg)
-                (let ((str (make-string 1 0)))
-                  (aset str 0 (string-to-number (substring arg 1) 16))
-                  str))
-              f t t))
-      (let* ((decoded-f (decode-coding-string
-                        f
-                        (or file-name-coding-system
-                            default-file-name-coding-system)))
-            (try-f (if (file-readable-p decoded-f) decoded-f f)))
-       (when (file-readable-p try-f) try-f)))))
-
-
-(defun dnd-open-local-file (uri action)
+                 (substring uri (match-end 0)))))
+       (coding (if (equal system-type 'windows-nt)
+                   ;; W32 pretends that file names are UTF-8 encoded.
+                   'utf-8
+                 (or file-name-coding-system
+                     default-file-name-coding-system))))
+    (and f (setq f (decode-coding-string (dnd-unescape-uri f) coding)))
+    (when (and f must-exist (not (file-readable-p f)))
+      (setq f nil))
+    f))
+
+(defun dnd-open-local-file (uri _action)
   "Open a local file.
 The file is opened in the current window, or a new window if
 `dnd-open-file-other-window' is set.  URI is the url for the file,
@@ -178,7 +184,7 @@ An alternative for systems that do not support unc file names is
          'private)
       (error "Can not read %s" uri))))
 
-(defun dnd-open-remote-url (uri action)
+(defun dnd-open-remote-url (uri _action)
   "Open a remote file with `find-file' and `url-handler-mode'.
 Turns `url-handler-mode' on if not on before.  The file is opened in the
 current window, or a new window if `dnd-open-file-other-window' is set.
@@ -224,5 +230,4 @@ TEXT is the text as a string, WINDOW is the window where the drop happened."
 
 (provide 'dnd)
 
-;; arch-tag: 0472f6a5-2e8f-4304-9e44-1a0877c771b7
 ;;; dnd.el ends here