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40 Thu, 25 Oct 2012 01:09:33 -0700 (PDT)
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41 From: Mark Walters <markwalters1009@gmail.com>
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42 To: notmuch@notmuchmail.org
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43 Subject: [PATCH (draft) 1/2] emacs: allow the user to toggle the visibility of
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44 multipart/alternative parts
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45 Date: Thu, 25 Oct 2012 09:09:22 +0100
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46 Message-Id: <1351152563-27277-2-git-send-email-markwalters1009@gmail.com>
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49 References: <1351152563-27277-1-git-send-email-markwalters1009@gmail.com>
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64 This patch adds a keybinding to the buttons in the notmuch-show emacs
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65 buffer to allow the user to toggle the visibility of each part of a
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66 message in the show buffer. This is particularly useful for
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67 multipart/alternative parts where the parts are not really
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68 alternatives but contain different information.
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70 emacs/notmuch-show.el | 47 +++++++++++++++++++++++++++++++++++++++--------
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71 1 files changed, 39 insertions(+), 8 deletions(-)
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73 diff --git a/emacs/notmuch-show.el b/emacs/notmuch-show.el
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74 index 0f54259..9157669 100644
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75 --- a/emacs/notmuch-show.el
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76 +++ b/emacs/notmuch-show.el
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77 @@ -155,6 +155,10 @@ indentation."
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78 (make-variable-buffer-local 'notmuch-show-indent-content)
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79 (put 'notmuch-show-indent-content 'permanent-local t)
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81 +(defvar notmuch-show-message-multipart/alternative-display-parts nil)
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82 +(make-variable-buffer-local 'notmuch-show-message-multipart/alternative-display-parts)
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83 +(put 'notmuch-show-message-multipart/alternative-display-parts 'permanent-local t)
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85 (defcustom notmuch-show-stash-mlarchive-link-alist
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86 '(("Gmane" . "http://mid.gmane.org/")
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87 ("MARC" . "http://marc.info/?i=")
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88 @@ -455,6 +459,7 @@ message at DEPTH in the current thread."
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89 (define-key map "v" 'notmuch-show-part-button-view)
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90 (define-key map "o" 'notmuch-show-part-button-interactively-view)
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91 (define-key map "|" 'notmuch-show-part-button-pipe)
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92 + (define-key map "t" 'notmuch-show-part-button-internally-show)
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94 "Submap for button commands")
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95 (fset 'notmuch-show-part-button-map notmuch-show-part-button-map)
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96 @@ -531,6 +536,16 @@ message at DEPTH in the current thread."
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97 (let ((handle (mm-make-handle (current-buffer) (list content-type))))
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98 (mm-pipe-part handle))))
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100 +(defun notmuch-show-internally-show-part (message-id nth &optional filename content-type)
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101 + "Set a part to be displayed internally"
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102 + (let ((current-parts (lax-plist-get notmuch-show-message-multipart/alternative-display-parts message-id)))
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103 + (setq notmuch-show-message-multipart/alternative-display-parts
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104 + (lax-plist-put notmuch-show-message-multipart/alternative-display-parts message-id
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105 + (if (memq nth current-parts)
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106 + (delq nth current-parts)
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107 + (cons nth current-parts)))))
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108 + (notmuch-show-refresh-view))
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110 (defun notmuch-show-multipart/*-to-list (part)
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111 (mapcar (lambda (inner-part) (plist-get inner-part :content-type))
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112 (plist-get part :content)))
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113 @@ -543,12 +558,15 @@ message at DEPTH in the current thread."
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114 ;; This inserts all parts of the chosen type rather than just one,
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115 ;; but it's not clear that this is the wrong thing to do - which
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116 ;; should be chosen if there are more than one that match?
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118 + ;; The variable user-parts says which parts should override the
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119 + ;; default so we use xor (handcoded since lisp does not have it).
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121 (mapc (lambda (inner-part)
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122 (let ((inner-type (plist-get inner-part :content-type)))
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123 - (if (or notmuch-show-all-multipart/alternative-parts
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124 - (string= chosen-type inner-type))
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125 - (notmuch-show-insert-bodypart msg inner-part depth)
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126 - (notmuch-show-insert-part-header (plist-get inner-part :id) inner-type inner-type nil " (not shown)"))))
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127 + (notmuch-show-insert-bodypart msg inner-part depth
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128 + (not (or notmuch-show-all-multipart/alternative-parts
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129 + (string= chosen-type inner-type))))))
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132 (when notmuch-show-indent-multipart
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133 @@ -806,11 +824,20 @@ message at DEPTH in the current thread."
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134 (setq handlers (cdr handlers))))
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137 -(defun notmuch-show-insert-bodypart (msg part depth)
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138 - "Insert the body part PART at depth DEPTH in the current thread."
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139 - (let ((content-type (downcase (plist-get part :content-type)))
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140 +(defun notmuch-show-insert-bodypart (msg part depth &optional not-shown)
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141 + "Insert the body part PART at depth DEPTH in the current thread.
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143 +If not-shown is TRUE then do not show the part unless the user
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144 +has overridden the default for this part"
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145 + (let ((user-parts (lax-plist-get notmuch-show-message-multipart/alternative-display-parts
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146 + (notmuch-id-to-query (plist-get msg :id))))
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147 + (content-type (downcase (plist-get part :content-type)))
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148 (nth (plist-get part :id)))
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149 - (notmuch-show-insert-bodypart-internal msg part content-type nth depth content-type))
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150 + (when (memq nth user-parts)
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151 + (setq not-shown (not not-shown)))
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153 + (notmuch-show-insert-part-header nth content-type content-type nil " (not shown)")
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154 + (notmuch-show-insert-bodypart-internal msg part content-type nth depth content-type)))
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155 ;; Some of the body part handlers leave point somewhere up in the
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156 ;; part, so we make sure that we're down at the end.
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157 (goto-char (point-max))
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158 @@ -1895,6 +1922,10 @@ the user (see `notmuch-show-stash-mlarchive-link-alist')."
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160 (notmuch-show-part-button-internal button #'notmuch-show-pipe-part))
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162 +(defun notmuch-show-part-button-internally-show (&optional button)
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164 + (notmuch-show-part-button-internal button #'notmuch-show-internally-show-part))
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166 (defun notmuch-show-part-button-internal (button handler)
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167 (let ((button (or button (button-at (point)))))
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