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+;;; ede/speedbar.el --- Speedbar viewing of EDE projects
+
+;;; Copyright (C) 1998, 1999, 2000, 2001, 2003, 2005, 2007, 2008, 2009
+;;; Free Software Foundation, Inc.
+
+;; Author: Eric M. Ludlam <zappo@gnu.org>
+;; Keywords: project, make, tags
+
+;; 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 3 of the License, 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.  If not, see <http://www.gnu.org/licenses/>.
+
+;;; Commentary:
+;;
+;; Display a project's hierarchy in speedbar.
+;;
+
+;;; Code:
+(require 'speedbar)
+(require 'eieio-speedbar)
+(require 'ede)
+
+;;; Speedbar support mode
+;;
+(defvar ede-speedbar-key-map nil
+  "A Generic object based speedbar display keymap.")
+
+(defun ede-speedbar-make-map ()
+  "Make the generic object based speedbar keymap."
+  (setq ede-speedbar-key-map (speedbar-make-specialized-keymap))
+
+  ;; General viewing things
+  (define-key ede-speedbar-key-map "\C-m" 'speedbar-edit-line)
+  (define-key ede-speedbar-key-map "+" 'speedbar-expand-line)
+  (define-key ede-speedbar-key-map "=" 'speedbar-expand-line)
+  (define-key ede-speedbar-key-map "-" 'speedbar-contract-line)
+  (define-key ede-speedbar-key-map " " 'speedbar-toggle-line-expansion)
+
+  ;; Some object based things
+  (define-key ede-speedbar-key-map "C" 'eieio-speedbar-customize-line)
+
+  ;; Some project based things
+  (define-key ede-speedbar-key-map "R" 'ede-speedbar-remove-file-from-target)
+  (define-key ede-speedbar-key-map "b" 'ede-speedbar-compile-line)
+  (define-key ede-speedbar-key-map "B" 'ede-speedbar-compile-project)
+  (define-key ede-speedbar-key-map "D" 'ede-speedbar-make-distribution)
+  (define-key ede-speedbar-key-map "E" 'ede-speedbar-edit-projectfile)
+  )
+
+(defvar ede-speedbar-menu
+  '([ "Compile" ede-speedbar-compile-line t]
+    [ "Compile Project" ede-speedbar-compile-project
+      (ede-project-child-p (speedbar-line-token)) ]
+    "---"
+    [ "Edit File/Tag" speedbar-edit-line
+      (not (eieio-object-p (speedbar-line-token)))]
+    [ "Expand" speedbar-expand-line
+      (save-excursion (beginning-of-line)
+		      (looking-at "[0-9]+: *.\\+. "))]
+    [ "Contract" speedbar-contract-line
+      (save-excursion (beginning-of-line)
+		      (looking-at "[0-9]+: *.-. "))]
+    "---"
+    [ "Remove File from Target" ede-speedbar-remove-file-from-target
+      (stringp (speedbar-line-token)) ]
+    [ "Customize Project/Target" eieio-speedbar-customize-line
+      (eieio-object-p (speedbar-line-token)) ]
+    [ "Edit Project File" ede-speedbar-edit-projectfile t]
+    [ "Make Distribution" ede-speedbar-make-distribution
+      (ede-project-child-p (speedbar-line-token)) ]
+    )
+  "Menu part in easymenu format used in speedbar while browsing objects.")
+
+(eieio-speedbar-create 'ede-speedbar-make-map
+		       'ede-speedbar-key-map
+		       'ede-speedbar-menu
+		       "Project"
+		       'ede-speedbar-toplevel-buttons)
+
+
+(defun ede-speedbar ()
+  "EDE development environment project browser for speedbar."
+  (interactive)
+  (speedbar-frame-mode 1)
+  (speedbar-change-initial-expansion-list "Project")
+  (speedbar-get-focus)
+  )
+
+(defun ede-speedbar-toplevel-buttons (dir)
+  "Return a list of objects to display in speedbar.
+Argument DIR is the directory from which to derive the list of objects."
+  ede-projects
+  )
+
+;;; Some special commands useful in EDE
+;;
+(defun ede-speedbar-remove-file-from-target ()
+  "Remove the file at point from it's target."
+  (interactive)
+  (if (stringp (speedbar-line-token))
+      (progn
+	(speedbar-edit-line)
+	(ede-remove-file))))
+
+(defun ede-speedbar-compile-line ()
+  "Compile/Build the project or target on this line."
+  (interactive)
+  (let ((obj (eieio-speedbar-find-nearest-object)))
+    (if (not (eieio-object-p obj))
+	nil
+      (cond ((obj-of-class-p obj ede-project)
+	     (project-compile-project obj))
+	    ((obj-of-class-p obj ede-target)
+	     (project-compile-target obj))
+	    (t (error "Error in speedbar structure"))))))
+
+(defun ede-speedbar-get-top-project-for-line ()
+  "Return a project object for this line."
+  (interactive)
+  (let ((obj (eieio-speedbar-find-nearest-object)))
+    (if (not (eieio-object-p obj))
+	(error "Error in speedbar or ede structure")
+      (if (obj-of-class-p obj ede-target)
+	  (setq obj (ede-target-parent obj)))
+      (if (obj-of-class-p obj ede-project)
+	  obj
+	(error "Error in speedbar or ede structure")))))
+
+(defun ede-speedbar-compile-project ()
+  "Compile/Build the project which owns this line."
+  (interactive)
+  (project-compile-project (ede-speedbar-get-top-project-for-line)))
+
+(defun ede-speedbar-compile-file-project ()
+  "Compile/Build the target which the current file belongs to."
+  (interactive)
+  (let* ((file (speedbar-line-file))
+	 (buf (find-file-noselect file))
+	 (bwin (get-buffer-window buf 0)))
+    (if bwin
+	(progn
+	  (select-window bwin)
+	  (raise-frame (window-frame bwin)))
+      (dframe-select-attached-frame speedbar-frame)
+      (set-buffer buf)
+      (ede-compile-target))))
+
+(defun ede-speedbar-make-distribution ()
+  "Edit the project file based on this line."
+  (interactive)
+  (project-make-dist (ede-speedbar-get-top-project-for-line)))
+
+(defun ede-speedbar-edit-projectfile ()
+  "Edit the project file based on this line."
+  (interactive)
+  (project-edit-file-target (ede-speedbar-get-top-project-for-line)))
+
+;;; Speedbar Project Methods
+;;
+(defun ede-find-nearest-file-line ()
+  "Go backwards until we find a file."
+  (save-excursion
+    (beginning-of-line)
+    (looking-at "^\\([0-9]+\\):")
+    (let ((depth (string-to-number (match-string 1))))
+      (while (not (re-search-forward "[]] [^ ]"
+				     (save-excursion (end-of-line)
+						     (point))
+				     t))
+	(re-search-backward (format "^%d:" (1- depth)))
+	(setq depth (1- depth)))
+      (speedbar-line-token))))
+
+(defmethod eieio-speedbar-derive-line-path ((obj ede-project) &optional depth)
+  "Return the path to OBJ.
+Optional DEPTH is the depth we start at."
+  (file-name-directory (oref obj file))
+  )
+
+(defmethod eieio-speedbar-derive-line-path ((obj ede-target) &optional depth)
+  "Return the path to OBJ.
+Optional DEPTH is the depth we start at."
+  (let ((proj (ede-target-parent obj)))
+    ;; Check the type of line we are currently on.
+    ;; If we are on a child, we need a file name too.
+    (save-excursion
+      (let ((lt (speedbar-line-token)))
+	(if (or (eieio-object-p lt) (stringp lt))
+	    (eieio-speedbar-derive-line-path proj)
+	  ;; a child element is a token.  Do some work to get a filename too.
+	  (concat (eieio-speedbar-derive-line-path proj)
+		  (ede-find-nearest-file-line)))))))
+
+(defmethod eieio-speedbar-description ((obj ede-project))
+  "Provide a speedbar description for OBJ."
+  (ede-description obj))
+
+(defmethod eieio-speedbar-description ((obj ede-target))
+  "Provide a speedbar description for OBJ."
+  (ede-description obj))
+
+(defmethod eieio-speedbar-child-description ((obj ede-target))
+  "Provide a speedbar description for a plain-child of OBJ.
+A plain child is a child element which is not an EIEIO object."
+  (or (speedbar-item-info-file-helper)
+      (speedbar-item-info-tag-helper)))
+
+(defmethod eieio-speedbar-object-buttonname ((object ede-project))
+  "Return a string to use as a speedbar button for OBJECT."
+  (if (ede-parent-project object)
+      (ede-name object)
+    (concat (ede-name object) " " (oref object version))))
+
+(defmethod eieio-speedbar-object-buttonname ((object ede-target))
+  "Return a string to use as a speedbar button for OBJECT."
+  (ede-name object))
+
+(defmethod eieio-speedbar-object-children ((this ede-project))
+  "Return the list of speedbar display children for THIS."
+  (condition-case nil
+      (with-slots (subproj targets) this
+	(append subproj targets))
+    (error nil)))
+
+(defmethod eieio-speedbar-object-children ((this ede-target))
+  "Return the list of speedbar display children for THIS."
+  (oref this source))
+
+(defmethod eieio-speedbar-child-make-tag-lines ((this ede-target) depth)
+  "Create a speedbar tag line for a child of THIS.
+It has depth DEPTH."
+  (with-slots (source) this
+    (mapcar (lambda (car)
+ 	      (speedbar-make-tag-line 'bracket ?+
+ 				      'speedbar-tag-file
+				      car
+ 				      car
+ 				      'ede-file-find
+ 				      car
+ 				      'speedbar-file-face depth))
+	    source)))
+
+;;; Generic file management for TARGETS
+;;
+(defun ede-file-find (text token indent)
+  "Find the file TEXT at path TOKEN.
+INDENT is the current indentation level."
+  (speedbar-find-file-in-frame
+   (expand-file-name token (speedbar-line-directory indent)))
+  (speedbar-maybee-jump-to-attached-frame))
+
+(defun ede-create-tag-buttons (filename indent)
+  "Create the tag buttons associated with FILENAME at INDENT."
+  (let* ((lst (speedbar-fetch-dynamic-tags filename)))
+    ;; if no list, then remove expando button
+    (if (not lst)
+	(speedbar-change-expand-button-char ??)
+      (speedbar-with-writable
+	;; We must do 1- because indent was already incremented.
+	(speedbar-insert-generic-list (1- indent)
+				      lst
+				      'ede-tag-expand
+				      'ede-tag-find)))))
+
+(defun ede-tag-expand (text token indent)
+  "Expand a tag sublist.  Imenu will return sub-lists of specialized tag types.
+Etags does not support this feature.  TEXT will be the button
+string.  TOKEN will be the list, and INDENT is the current indentation
+level."
+  (cond ((string-match "+" text)	;we have to expand this file
+	 (speedbar-change-expand-button-char ?-)
+	 (speedbar-with-writable
+	   (save-excursion
+	     (end-of-line) (forward-char 1)
+	     (speedbar-insert-generic-list indent token
+					   'ede-tag-expand
+					   'ede-tag-find))))
+	((string-match "-" text)	;we have to contract this node
+	 (speedbar-change-expand-button-char ?+)
+	 (speedbar-delete-subblock indent))
+	(t (error "Ooops...  not sure what to do")))
+  (speedbar-center-buffer-smartly))
+
+(defun ede-tag-find (text token indent)
+  "For the tag TEXT in a file TOKEN, goto that position.
+INDENT is the current indentation level."
+  (let ((file (ede-find-nearest-file-line)))
+    (speedbar-find-file-in-frame file)
+    (save-excursion (speedbar-stealthy-updates))
+    ;; Reset the timer with a new timeout when cliking a file
+    ;; in case the user was navigating directories, we can cancel
+    ;; that other timer.
+;    (speedbar-set-timer speedbar-update-speed)
+    (goto-char token)
+    (run-hooks 'speedbar-visiting-tag-hook)
+    ;;(recenter)
+    (speedbar-maybee-jump-to-attached-frame)
+    ))
+
+;;; EDE and the speedbar FILE display
+;;
+;; This will add a couple keybindings and menu items into the
+;; FILE display for speedbar.
+
+(defvar ede-speedbar-file-menu-additions
+  '("----"
+    ["Create EDE Target" ede-new-target (ede-current-project) ]
+    ["Add to project" ede-speedbar-file-add-to-project (ede-current-project) ]
+    ["Compile project" ede-speedbar-compile-project (ede-current-project) ]
+    ["Compile file target" ede-speedbar-compile-file-target (ede-current-project) ]
+    ["Make distribution" ede-make-dist (ede-current-project) ]
+    )
+  "Set of menu items to splice into the speedbar menu.")
+
+(defvar ede-speedbar-file-keymap
+  (let ((km (make-sparse-keymap)))
+    (define-key km "a" 'ede-speedbar-file-add-to-project)
+    (define-key km "t" 'ede-new-target)
+    (define-key km "s" 'ede-speedbar)
+    (define-key km "C" 'ede-speedbar-compile-project)
+    (define-key km "c" 'ede-speedbar-compile-file-target)
+    (define-key km "d" 'ede-make-dist)
+    km)
+  "Keymap spliced into the speedbar keymap.")
+
+(defun ede-speedbar-file-setup ()
+  "Setup some keybindings in the Speedbar File display."
+  (setq speedbar-easymenu-definition-special
+	(append speedbar-easymenu-definition-special
+		ede-speedbar-file-menu-additions
+		))
+  (define-key speedbar-file-key-map "." ede-speedbar-file-keymap)
+  ;; Finally, if the FILES mode is loaded, force a refresh
+  ;; of the menus and such.
+  (when (and (string= speedbar-initial-expansion-list-name "files")
+	     (buffer-live-p speedbar-buffer)
+	     )
+    (speedbar-change-initial-expansion-list "files")))
+
+(provide 'ede/speedbar)
+
+;;; ede/speedbar.el ends here