]> code.delx.au - gnu-emacs-elpa/blobdiff - ivy.el
ivy.el (ivy-switch-buffer): Preselect other-buffer
[gnu-emacs-elpa] / ivy.el
diff --git a/ivy.el b/ivy.el
index 2168fb2d269e4ee72c1fe09d10eb4b25d6e04dec..1a92d0d1526051a1bba9bbecc00982ffc6f4710f 100644 (file)
--- a/ivy.el
+++ b/ivy.el
@@ -87,6 +87,10 @@ This is usually meant as a quick exit out of the minibuffer."
 Only \"./\" and \"../\" apply here. They appear in reverse order."
   :type 'list)
 
+(defcustom ivy-use-virtual-buffers nil
+  "When non-nil, add `recentf-mode' and bookmarks to the list of buffers."
+  :type 'boolean)
+
 ;;* Keymap
 (require 'delsel)
 (defvar ivy-minibuffer-map
@@ -102,6 +106,7 @@ Only \"./\" and \"../\" apply here. They appear in reverse order."
     (define-key map (kbd "C-r") 'ivy-previous-line-or-history)
     (define-key map (kbd "SPC") 'self-insert-command)
     (define-key map (kbd "DEL") 'ivy-backward-delete-char)
+    (define-key map (kbd "M-DEL") 'ivy-backward-kill-word)
     (define-key map (kbd "M-<") 'ivy-beginning-of-buffer)
     (define-key map (kbd "M->") 'ivy-end-of-buffer)
     (define-key map (kbd "<left>") 'ivy-beginning-of-buffer)
@@ -131,7 +136,11 @@ Only \"./\" and \"../\" apply here. They appear in reverse order."
   ;; The window in which `ivy-read' was called
   window
   action
-  unwind)
+  unwind
+  re-builder
+  matcher
+  ;; When this is non-nil, call it for each input change to get new candidates
+  dynamic-collection)
 
 (defvar ivy-last nil
   "The last parameters passed to `ivy-read'.")
@@ -287,10 +296,18 @@ When ARG is t, exit with current text, ignoring the candidates."
 When called twice in a row, exit the minibuffer with the current
 candidate."
   (interactive)
-  (or (ivy-partial)
-      (if (eq this-command last-command)
-         (ivy-done)
-       (ivy-alt-done))))
+  (if (and (eq (ivy-state-collection ivy-last) 'read-file-name-internal)
+           (string-match "^/" ivy-text))
+      (let ((default-directory ivy--directory))
+        (minibuffer-complete)
+        (setq ivy-text (ivy--input))
+        (when (and (file-directory-p ivy-text)
+                   (= ivy--length 1))
+          (ivy--cd (expand-file-name ivy-text))))
+    (or (ivy-partial)
+        (if (eq this-command last-command)
+            (ivy-done)
+          (ivy-alt-done)))))
 
 (defun ivy-partial ()
   "Complete the minibuffer text as much as possible."
@@ -333,7 +350,10 @@ candidate."
    :update-fn (ivy-state-update-fn ivy-last)
    :sort (ivy-state-sort ivy-last)
    :action (ivy-state-action ivy-last)
-   :unwind (ivy-state-unwind ivy-last)))
+   :unwind (ivy-state-unwind ivy-last)
+   :re-builder (ivy-state-re-builder ivy-last)
+   :matcher (ivy-state-matcher ivy-last)
+   :dynamic-collection (ivy-state-dynamic-collection ivy-last)))
 
 (defun ivy-beginning-of-buffer ()
   "Select the first completion candidate."
@@ -462,6 +482,19 @@ On error (read-only), call `ivy-on-del-error-function'."
        (when ivy-on-del-error-function
          (funcall ivy-on-del-error-function))))))
 
+(defun ivy-backward-kill-word ()
+  "Forward to `backward-kill-word'."
+  (interactive)
+  (if (and ivy--directory (= (minibuffer-prompt-end) (point)))
+      (progn
+        (ivy--cd (file-name-directory
+                  (directory-file-name
+                   (expand-file-name
+                    ivy--directory))))
+        (ivy--exhibit))
+    (ignore-errors
+      (backward-kill-word 1))))
+
 (defvar ivy--regexp-quote 'regexp-quote
   "Store the regexp quoting state.")
 
@@ -536,7 +569,7 @@ Directories come first."
 (cl-defun ivy-read (prompt collection
                     &key predicate require-match initial-input
                       history preselect keymap update-fn sort
-                      action unwind)
+                      action unwind re-builder matcher dynamic-collection)
   "Read a string in the minibuffer, with completion.
 
 PROMPT is a string to prompt with; normally it ends in a colon
@@ -559,7 +592,14 @@ When SORT is t, refer to `ivy-sort-functions-alist' for sorting.
 
 ACTION is a lambda to call after a result was selected.
 
-UNWIND is a lambda to call before exiting."
+UNWIND is a lambda to call before exiting.
+
+RE-BUILDER is a lambda that transforms text into a regex.
+
+MATCHER can completely override matching.
+
+DYNAMIC-COLLECTION is a function to call to update the list of
+candidates with each input."
   (setq ivy-last
         (make-ivy-state
          :prompt prompt
@@ -574,10 +614,14 @@ UNWIND is a lambda to call before exiting."
          :sort sort
          :action action
          :window (selected-window)
-         :unwind unwind))
+         :unwind unwind
+         :re-builder re-builder
+         :matcher matcher
+         :dynamic-collection dynamic-collection))
   (setq ivy--directory nil)
   (setq ivy--regex-function
-        (or (and (functionp collection)
+        (or re-builder
+            (and (functionp collection)
                  (cdr (assoc collection ivy-re-builders-alist)))
             (cdr (assoc t ivy-re-builders-alist))
             'ivy--regex))
@@ -605,14 +649,7 @@ UNWIND is a lambda to call before exiting."
                (setq coll (cons initial-input coll)))
              (setq initial-input nil)))
           ((eq collection 'internal-complete-buffer)
-           (setq coll
-                 (mapcar (lambda (x)
-                           (if (with-current-buffer x
-                                 (file-remote-p
-                                  (abbreviate-file-name default-directory)))
-                               (propertize x 'face 'ivy-remote)
-                             x))
-                         (all-completions "" collection predicate))))
+           (setq coll (ivy--buffer-list "" ivy-use-virtual-buffers)))
           ((or (functionp collection)
                (vectorp collection)
                (listp (car collection)))
@@ -638,6 +675,8 @@ UNWIND is a lambda to call before exiting."
                               coll))
         (setq coll (cons preselect coll))))
     (setq ivy--index (or
+                      (and dynamic-collection
+                           ivy--index)
                       (and preselect
                            (ivy--preselect-index
                             coll initial-input preselect))
@@ -661,6 +700,8 @@ UNWIND is a lambda to call before exiting."
              (minibuffer-with-setup-hook
                  #'ivy--minibuffer-setup
                (let* ((hist (or history 'ivy-history))
+                      (minibuffer-completion-table collection)
+                      (minibuffer-completion-predicate predicate)
                       (res (read-from-minibuffer
                             prompt
                             initial-input
@@ -857,11 +898,8 @@ Everything after \"!\" should not match."
     (goto-char (minibuffer-prompt-end))
     (delete-region (line-end-position) (point-max))))
 
-(defvar ivy--dynamic-function nil
-  "When this is non-nil, call it for each input change to get new candidates.")
-
 (defvar ivy--full-length nil
-  "When `ivy--dynamic-function' is non-nil, this can be the total amount of candidates.")
+  "When :dynamic-collection is non-nil, this can be the total amount of candidates.")
 
 (defvar ivy--old-text ""
   "Store old `ivy-text' for dynamic completion.")
@@ -889,7 +927,7 @@ Everything after \"!\" should not match."
                       (if ivy--directory
                           (abbreviate-file-name ivy--directory)
                         ""))
-              (or (and ivy--dynamic-function
+              (or (and (ivy-state-dynamic-collection ivy-last)
                        ivy--full-length)
                   ivy--length))))
         (save-excursion
@@ -921,14 +959,14 @@ Everything after \"!\" should not match."
   "Insert Ivy completions display.
 Should be run via minibuffer `post-command-hook'."
   (setq ivy-text (ivy--input))
-  (if ivy--dynamic-function
+  (if (ivy-state-dynamic-collection ivy-last)
       ;; while-no-input would cause annoying
       ;; "Waiting for process to die...done" message interruptions
       (let ((inhibit-message t))
         (while-no-input
           (unless (equal ivy--old-text ivy-text)
-            (let ((store ivy--dynamic-function)
-                  (ivy--dynamic-function nil))
+            (cl-letf ((store (ivy-state-dynamic-collection ivy-last))
+                      ((ivy-state-dynamic-collection ivy-last) nil))
               (setq ivy--all-candidates (funcall store ivy-text))))
           (ivy--insert-minibuffer (ivy--format ivy--all-candidates))))
     (cond (ivy--directory
@@ -945,13 +983,11 @@ Should be run via minibuffer `post-command-hook'."
                      (and (string-match "^ " ivy--old-text)
                           (not (string-match "^ " ivy-text))))
              (setq ivy--all-candidates
-                   (all-completions
-                    (if (and (> (length ivy-text) 0)
-                             (eq (aref ivy-text 0)
-                                 ?\ ))
-                        " "
-                      "")
-                    'internal-complete-buffer))
+                   (if (and (> (length ivy-text) 0)
+                            (eq (aref ivy-text 0)
+                                ?\ ))
+                       (ivy--buffer-list " ")
+                     (ivy--buffer-list "" ivy-use-virtual-buffers)))
              (setq ivy--old-re nil))))
     (ivy--insert-minibuffer
      (ivy--format
@@ -986,56 +1022,45 @@ Should be run via minibuffer `post-command-hook'."
        (font-lock-append-text-property 0 (length str) 'face face str))))
   str)
 
-(defun ivy--transform-re (regex)
-  "Transform REGEX into another regex.
-This is a work-around for `swiper' and line starts."
-  (if (equal (ivy-state-keymap ivy-last) swiper-map)
-      (cond
-        ((equal regex "^")
-         ".")
-        ((string-match "^\\(?:\\\\(\\)?\\(\\^\\)" regex)
-         (setq ivy--old-re "")
-         (replace-match (format "^[0-9 ]\\{%d\\}"
-                                (1+ swiper--width)) nil t regex 1))
-        (t
-         regex))
-    regex))
-
 (defun ivy--filter (name candidates)
   "Return all items that match NAME in CANDIDATES.
 CANDIDATES are assumed to be static."
-  (let* ((re (ivy--transform-re
-              (funcall ivy--regex-function name)))
-         (cands (cond ((and (equal re ivy--old-re)
-                            ivy--old-cands)
-                       ivy--old-cands)
-                      ((and ivy--old-re
-                            (stringp re)
-                            (stringp ivy--old-re)
-                            (not (string-match "\\\\" ivy--old-re))
-                            (not (equal ivy--old-re ""))
-                            (memq (cl-search
-                                   (if (string-match "\\\\)$" ivy--old-re)
-                                       (substring ivy--old-re 0 -2)
-                                     ivy--old-re)
-                                   re) '(0 2)))
-                       (ignore-errors
-                         (cl-remove-if-not
-                          (lambda (x) (string-match re x))
-                          ivy--old-cands)))
-                      (t
-                       (let ((re-list (if (stringp re) (list (cons re t)) re))
-                             (res candidates))
-                         (dolist (re re-list)
-                           (setq res
-                                 (ignore-errors
-                                   (funcall
-                                    (if (cdr re)
-                                        #'cl-remove-if-not
-                                      #'cl-remove-if)
-                                    `(lambda (x) (string-match ,(car re) x))
-                                    res))))
-                         res))))
+  (let* ((re (funcall ivy--regex-function name))
+         (matcher (ivy-state-matcher ivy-last))
+         (cands (cond
+                  (matcher
+                   (let ((ivy--old-re re))
+                     (cl-remove-if-not matcher candidates)))
+                  ((and (equal re ivy--old-re)
+                        ivy--old-cands)
+                   ivy--old-cands)
+                  ((and ivy--old-re
+                        (stringp re)
+                        (stringp ivy--old-re)
+                        (not (string-match "\\\\" ivy--old-re))
+                        (not (equal ivy--old-re ""))
+                        (memq (cl-search
+                               (if (string-match "\\\\)$" ivy--old-re)
+                                   (substring ivy--old-re 0 -2)
+                                 ivy--old-re)
+                               re) '(0 2)))
+                   (ignore-errors
+                     (cl-remove-if-not
+                      (lambda (x) (string-match re x))
+                      ivy--old-cands)))
+                  (t
+                   (let ((re-list (if (stringp re) (list (cons re t)) re))
+                         (res candidates))
+                     (dolist (re re-list)
+                       (setq res
+                             (ignore-errors
+                               (funcall
+                                (if (cdr re)
+                                    #'cl-remove-if-not
+                                  #'cl-remove-if)
+                                `(lambda (x) (string-match ,(car re) x))
+                                res))))
+                     res))))
          (tail (nthcdr ivy--index ivy--old-cands))
          idx)
     (when (and tail ivy--old-cands)
@@ -1057,9 +1082,34 @@ CANDIDATES are assumed to be static."
             (or (cl-position (ivy-state-preselect ivy-last)
                              cands :test 'equal)
                 ivy--index)))
-    (setq ivy--old-re re)
+    (setq ivy--old-re (if cands re ""))
     (setq ivy--old-cands cands)))
 
+(defvar ivy-format-function 'ivy-format-function-default
+  "Function to transform the list of candidates into a string.
+This string will be inserted into the minibuffer.")
+
+(defun ivy-format-function-default (cands)
+  "Transform CANDS into a string for minibuffer."
+  (let ((ww (window-width)))
+    (mapconcat
+     (lambda (s)
+       (if (> (length s) ww)
+           (concat (substring s 0 (- ww 3)) "...")
+         s))
+     cands "\n")))
+
+(defun ivy-format-function-arrow (cands)
+  "Transform CANDS into a string for minibuffer."
+  (let ((i -1))
+    (mapconcat
+     (lambda (s)
+       (concat (if (eq (cl-incf i) ivy--index)
+                   "==> "
+                 "    ")
+               s))
+     cands "\n")))
+
 (defun ivy--format (cands)
   "Return a string for CANDS suitable for display in the minibuffer.
 CANDS is a list of strings."
@@ -1082,13 +1132,8 @@ CANDS is a list of strings."
       (setq ivy--current (copy-sequence (nth index cands)))
       (setf (nth index cands)
             (ivy--add-face ivy--current 'ivy-current-match))
-      (let* ((ww (window-width))
-             (res (concat "\n" (mapconcat
-                                (lambda (s)
-                                  (if (> (length s) ww)
-                                      (concat (substring s 0 (- ww 3)) "...")
-                                    s))
-                                cands "\n"))))
+      (let* ((ivy--index index)
+             (res (concat "\n" (funcall ivy-format-function cands))))
         (put-text-property 0 (length res) 'read-only nil res)
         res))))
 
@@ -1097,10 +1142,6 @@ CANDS is a list of strings."
 
 (defvar recentf-list)
 (defvar ido-use-faces)
-(defvar ido-process-ignore-lists)
-(defvar ido-ignored-list)
-(defvar ido-use-virtual-buffers)
-(declare-function ido-make-buffer-list "ido")
 
 (defun ivy--virtual-buffers ()
   "Adapted from `ido-add-virtual-buffers-to-list'."
@@ -1133,33 +1174,41 @@ CANDS is a list of strings."
       (setq ivy--virtual-buffers (nreverse virtual-buffers))
       (mapcar #'car ivy--virtual-buffers))))
 
-(defun ivy-buffer-list ()
-  "Return the current list of buffers.
-See `ido-make-buffer-list'."
-  (require 'ido)
-  (setq ivy--virtual-buffers nil)
-  (let ((ido-process-ignore-lists t)
-        ido-ignored-list)
-    (delete-dups
-     (append (ido-make-buffer-list nil)
-             (and
-              ido-use-virtual-buffers
-              (ivy--virtual-buffers))))))
+(defun ivy--buffer-list (str &optional virtual)
+  "Return the buffers that match STR.
+When VIRTUAL is non-nil, add virtual buffers."
+  (delete-dups
+   (append
+    (mapcar
+     (lambda (x)
+       (if (with-current-buffer x
+             (file-remote-p
+              (abbreviate-file-name default-directory)))
+           (propertize x 'face 'ivy-remote)
+         x))
+     (all-completions str 'internal-complete-buffer))
+    (and virtual
+         (ivy--virtual-buffers)))))
+
+(defun ivy--switch-buffer-action ()
+  "Finalizer for `ivy-switch-buffer'."
+  (if (zerop (length ivy--current))
+      (switch-to-buffer
+       ivy-text nil 'force-same-window)
+    (let ((virtual (assoc ivy--current ivy--virtual-buffers)))
+      (if virtual
+          (find-file (cdr virtual))
+        (switch-to-buffer
+         ivy--current nil 'force-same-window)))))
 
 (defun ivy-switch-buffer ()
   "Switch to another buffer."
   (interactive)
   (if (not ivy-mode)
       (call-interactively 'switch-to-buffer)
-    (let ((bl (ivy-buffer-list)))
-      (ivy-read "Switch to buffer: " bl
-                :action
-                (lambda ()
-                  (let ((virtual (assoc ivy--current ivy--virtual-buffers)))
-                    (if virtual
-                        (find-file (cdr virtual))
-                      (switch-to-buffer
-                       ivy--current nil 'force-same-window))))))))
+    (ivy-read "Switch to buffer: " 'internal-complete-buffer
+              :action #'ivy--switch-buffer-action
+              :preselect (buffer-name (other-buffer (current-buffer))))))
 
 (provide 'ivy)