109 lines
3.5 KiB
EmacsLisp
109 lines
3.5 KiB
EmacsLisp
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;;; helm-plugin.el --- Helm plugins -*- lexical-binding: t -*-
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;; Copyright (C) 2012 ~ 2016 Thierry Volpiatto <thierry.volpiatto@gmail.com>
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;; This program is free software; you can redistribute it and/or modify
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;; it under the terms of the GNU General Public License as published by
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;; the Free Software Foundation, either version 3 of the License, or
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;; (at your option) any later version.
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;; This program is distributed in the hope that it will be useful,
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;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;; GNU General Public License for more details.
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;; You should have received a copy of the GNU General Public License
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;; along with this program. If not, see <http://www.gnu.org/licenses/>.
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;;; Code:
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(require 'cl-lib)
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(require 'helm)
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(require 'helm-utils)
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;;; Plug-in: `info-index'
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;;
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;;
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(defun helm-make-info-source (source file)
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`(,@source
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(name . ,(concat "Info Index: " file))
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(info-file . ,file)
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(init . helm-info-init)
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(display-to-real . helm-info-display-to-real)
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(get-line . buffer-substring)
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(candidates-in-buffer)
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(action ("Goto node" . helm-info-goto))))
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(defun helm-compile-source--info-index (source)
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(helm-aif (helm-interpret-value (assoc-default 'info-index source))
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(helm-make-info-source source it)
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source))
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(add-to-list 'helm-compile-source-functions 'helm-compile-source--info-index)
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;;; Plug-in: `candidates-file'
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;;
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;; List all lines in a file.
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(defun helm-compile-source--candidates-file (source)
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(if (assoc-default 'candidates-file source)
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`((init helm-p-candidates-file-init
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,@(let ((orig-init (assoc-default 'init source)))
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(cond ((null orig-init) nil)
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((functionp orig-init) (list orig-init))
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(t orig-init))))
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(candidates-in-buffer)
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,@source)
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source))
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(add-to-list 'helm-compile-source-functions 'helm-compile-source--candidates-file)
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(defun helm-p-candidates-file-init ()
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(cl-destructuring-bind (file &optional updating)
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(helm-mklist (helm-attr 'candidates-file))
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(setq file (helm-interpret-value file))
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(with-current-buffer (helm-candidate-buffer 'global)
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(insert-file-contents file)
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(when updating
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(buffer-disable-undo)
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(font-lock-mode -1)
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(auto-revert-mode 1)))))
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;;; Plug-in: `persistent-help'
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;;
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;; Add help about persistent action in `helm-buffer' header.
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(defun helm-compile-source--persistent-help (source)
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(if (assoc 'header-line source)
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source
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(append source '((header-line . helm-persistent-help-string)))))
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(add-to-list 'helm-compile-source-functions 'helm-compile-source--persistent-help)
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(defun helm-persistent-help-string ()
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(substitute-command-keys
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(concat "\\<helm-map>\\[helm-execute-persistent-action]: "
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(or (helm-interpret-value (helm-attr 'persistent-help))
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(helm-aif (or (assoc-default
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'persistent-action
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(helm-get-current-source))
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(assoc-default
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'action (helm-get-current-source)))
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(cond ((symbolp it)
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(symbol-name it))
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((listp it)
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(or (ignore-errors (caar it)) ""))))
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"")
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" (keeping session)")))
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(provide 'helm-plugin)
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;; Local Variables:
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;; byte-compile-warnings: (not cl-functions obsolete)
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;; coding: utf-8
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;; indent-tabs-mode: nil
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;; End:
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;;; helm-plugin ends here
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