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sx-tab.el
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sx-tab.el
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;;; sx-tab.el --- functions for viewing different tabs -*- lexical-binding: t; -*-
;; Copyright (C) 2014-2018 Artur Malabarba
;; Author: Artur Malabarba <bruce.connor.am@gmail.com>
;; This program 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.
;; This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
;;; Commentary:
;; This file provides a single macro to define 'tabs' to view lists of
;; questions.
;;; Tabs:
;; - `sx-tab-all-questions' :: All questions.
;; - `sx-tab-unanswered' :: Unanswered questions.
;; - `sx-tab-unanswered-my-tags' :: Unanswered questions in your followed tags.
;; - `sx-tab-featured' :: Featured questions.
;; - `sx-tab-starred' :: Starred questions.
;;; Code:
(require 'sx)
(require 'sx-question-list)
(require 'sx-interaction)
(defvar sx-tab--list nil
"List of the names of all defined tabs.")
(defun sx-tab-switch (tab)
"Switch to another question-list TAB."
(interactive
(list (sx-completing-read
"Switch to tab: " sx-tab--list
(lambda (tab) (not (equal tab sx-question-list--current-tab)))
t)))
(funcall (intern (format "sx-tab-%s" (downcase tab)))))
(defconst sx-tab--order-methods
`(,@(default-value 'sx-question-list--order-methods)
("Hottest Now" . hot)
("Weekly Hottest" . week)
("Monthly Hottest" . month))
"Alist of possible values to be passed to the `sort' keyword.")
(defcustom sx-tab-default-order 'activity
"Default ordering method used on `sx-tab-questions' and the likes.
Possible values are the cdrs of `sx-tab--order-methods'."
:type (cons 'choice
(mapcar (lambda (c) `(const :tag ,(car c) ,(cdr c)))
(cl-remove-duplicates
sx-tab--order-methods
:key #'cdr)))
:group 'sx-question-list)
(eval-and-compile
(defconst sx-tab--docstring-format
"Display a list of %s questions for SITE.
The variable `sx-tab-default-order' can be used to customize the
sorting of the resulting list.
NO-UPDATE (the prefix arg) is passed to `sx-question-list-refresh'.
If SITE is nil, use `sx-default-site'."
"Format used on the docstring of `sx-tab-*' commands."))
;;; The main macro
(defmacro sx-tab--define (tab pager &optional printer refresher obsolete
&rest body)
"Define a StackExchange tab called TAB.
TAB is a capitalized string.
This defines a command `sx-tab-TAB' for displaying the tab,
and a variable `sx-tab--TAB-buffer' for holding the buffer.
The arguments PAGER, PRINTER, and REFRESHER, if non-nil, are
respectively used to set the value of the variables
`sx-question-list--print-function',
`sx-question-list--refresh-function', and
`sx-question-list--next-page-function'.
If OBSOLETE is non-nil, it should be a string indicating the tab
to use instead of this one.
BODY is evaluated after activating the mode and setting these
variables, but before refreshing the display."
(declare (indent 1) (debug t))
(let* ((name (downcase tab))
(buffer-variable
(intern (format "sx-tab--%s-buffer"
(if obsolete (downcase obsolete)
name))))
(function-name
(intern (concat "sx-tab-" name)))
(use-instead
(when obsolete (intern (concat "sx-tab-" (downcase obsolete))))))
`(progn
,(unless obsolete
`(defvar ,buffer-variable nil
,(format "Buffer where the %s questions are displayed." tab)))
(defun ,function-name (&optional no-update site)
,(format sx-tab--docstring-format tab)
(interactive
(list current-prefix-arg
(sx--interactive-site-prompt)))
(sx-initialize)
(unless site (setq site sx-default-site))
;; Create the buffer
(unless (buffer-live-p ,buffer-variable)
(setq ,buffer-variable
(generate-new-buffer
,(format "*question-list: %s *" (or obsolete tab)))))
;; Fill the buffer with content.
(with-current-buffer ,buffer-variable
(sx-question-list-mode)
(when ,printer (setq sx-question-list--print-function ,printer))
(when ,refresher (setq sx-question-list--refresh-function ,refresher))
(setq sx-question-list--next-page-function ,pager)
(setq sx-question-list--site site)
(setq sx-question-list--order 'activity)
(setq sx-question-list--current-tab ,(or obsolete tab))
,@body
(sx-question-list-refresh 'redisplay no-update))
(switch-to-buffer ,buffer-variable))
,(when obsolete
`(make-obsolete ',function-name ',use-instead nil))
;; Add this tab to the list of existing tabs. So we can prompt
;; the user with completion and stuff.
(unless ,obsolete
(add-to-list 'sx-tab--list ,tab)))))
;;; Entry commands
(sx-tab--define "All-Questions"
(sx-question-list--make-pager 'questions)
nil nil nil
(setq sx-question-list--order-methods
sx-tab--order-methods))
;;;###autoload
(autoload 'sx-tab-all-questions "sx-tab" nil t)
(sx-tab--define "Unanswered"
(sx-question-list--make-pager 'questions 'unanswered))
;;;###autoload
(autoload 'sx-tab-unanswered "sx-tab" nil t)
(sx-tab--define "Unanswered-My-Tags"
(sx-question-list--make-pager 'questions 'unanswered/my-tags))
;;;###autoload
(autoload 'sx-tab-unanswered-my-tags "sx-tab" nil t)
(sx-tab--define "Featured"
(sx-question-list--make-pager 'questions 'featured))
;;;###autoload
(autoload 'sx-tab-featured "sx-tab" nil t)
(sx-tab--define "Starred"
(sx-question-list--make-pager 'me 'favorites))
;;;###autoload
(autoload 'sx-tab-starred "sx-tab" nil t)
;;; Inter-modes navigation
(defun sx-tab-meta-or-main ()
"Switch to the meta version of a main site, or vice-versa.
Inside a question, go to the frontpage of the site this question
belongs to."
(interactive)
(if (and (derived-mode-p 'sx-question-list-mode)
sx-question-list--site)
(sx-question-list-switch-site
(if (string-match "\\`meta\\." sx-question-list--site)
(replace-match "" :fixedcase nil sx-question-list--site)
(concat "meta." sx-question-list--site)))
(sx-tab-all-questions nil (sx--site (sx--data-here 'question)))))
;;; Obsolete tabs
(defconst sx-tab--basic-question-pager
(sx-question-list--make-pager 'questions))
(sx-tab--define "FrontPage"
sx-tab--basic-question-pager
nil nil "All-Questions"
(setq sx-question-list--order 'activity)
(setq sx-question-list--order-methods
sx-tab--order-methods))
;;;###autoload
(autoload 'sx-tab-frontpage "sx-tab" nil t)
(sx-tab--define "Newest"
sx-tab--basic-question-pager
nil nil "All-Questions"
(setq sx-question-list--order 'creation)
(setq sx-question-list--order-methods
sx-tab--order-methods))
;;;###autoload
(autoload 'sx-tab-newest "sx-tab" nil t)
(sx-tab--define "TopVoted"
sx-tab--basic-question-pager
nil nil "All-Questions"
(setq sx-question-list--order 'votes)
(setq sx-question-list--order-methods
sx-tab--order-methods))
;;;###autoload
(autoload 'sx-tab-topvoted "sx-tab" nil t)
(sx-tab--define "Hot"
sx-tab--basic-question-pager
nil nil "All-Questions"
(setq sx-question-list--order 'hot)
(setq sx-question-list--order-methods
sx-tab--order-methods))
;;;###autoload
(autoload 'sx-tab-hot "sx-tab" nil t)
(sx-tab--define "Week"
sx-tab--basic-question-pager
nil nil "All-Questions"
(setq sx-question-list--order 'week)
(setq sx-question-list--order-methods
sx-tab--order-methods))
;;;###autoload
(autoload 'sx-tab-week "sx-tab" nil t)
(sx-tab--define "Month"
sx-tab--basic-question-pager
nil nil "All-Questions"
(setq sx-question-list--order 'month)
(setq sx-question-list--order-methods
sx-tab--order-methods))
;;;###autoload
(autoload 'sx-tab-month "sx-tab" nil t)
(provide 'sx-tab)
;;; sx-tab.el ends here
;; Local Variables:
;; indent-tabs-mode: nil
;; End: