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+ Sun, 14 Feb 2016 10:40:16 -0800 (PST)\r
+From: Mark Walters <markwalters1009@gmail.com>\r
+To: notmuch@notmuchmail.org\r
+Subject: [PATCH v5 2/7] emacs/show: Accommodate the lack of part header\r
+ buttons\r
+Date: Sun, 14 Feb 2016 18:39:54 +0000\r
+Message-Id: <1455475199-32622-3-git-send-email-markwalters1009@gmail.com>\r
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+\r
+From: David Edmondson <dme@dme.org>\r
+\r
+Various pieces of code assumed (reasonably) that part header buttons\r
+are present. Modify them to avoid problems if no part headers were\r
+inserted.\r
+---\r
+ emacs/notmuch-show.el | 88 ++++++++++++++++++++++++++++-----------------------\r
+ 1 file changed, 48 insertions(+), 40 deletions(-)\r
+\r
+diff --git a/emacs/notmuch-show.el b/emacs/notmuch-show.el\r
+index 70cdb9d..37ed74d 100644\r
+--- a/emacs/notmuch-show.el\r
++++ b/emacs/notmuch-show.el\r
+@@ -507,36 +507,37 @@ message at DEPTH in the current thread."\r
+ \r
+ (defun notmuch-show-toggle-part-invisibility (&optional button)\r
+ (interactive)\r
+- (let* ((button (or button (button-at (point))))\r
+- (overlay (button-get button 'overlay))\r
+- (lazy-part (button-get button :notmuch-lazy-part)))\r
+- ;; We have a part to toggle if there is an overlay or if there is a lazy part.\r
+- ;; If neither is present we cannot toggle the part so we just return nil.\r
+- (when (or overlay lazy-part)\r
+- (let* ((show (button-get button :notmuch-part-hidden))\r
+- (new-start (button-start button))\r
+- (button-label (button-get button :base-label))\r
+- (old-point (point))\r
+- (properties (text-properties-at (button-start button)))\r
+- (inhibit-read-only t))\r
+- ;; Toggle the button itself.\r
+- (button-put button :notmuch-part-hidden (not show))\r
+- (goto-char new-start)\r
+- (insert "[ " button-label (if show " ]" " (hidden) ]"))\r
+- (set-text-properties new-start (point) properties)\r
+- (let ((old-end (button-end button)))\r
+- (move-overlay button new-start (point))\r
+- (delete-region (point) old-end))\r
+- (goto-char (min old-point (1- (button-end button))))\r
+- ;; Return nil if there is a lazy-part, it is empty, and we are\r
+- ;; trying to show it. In all other cases return t.\r
+- (if lazy-part\r
+- (when show\r
+- (button-put button :notmuch-lazy-part nil)\r
+- (notmuch-show-lazy-part lazy-part button))\r
+- ;; else there must be an overlay.\r
+- (overlay-put overlay 'invisible (not show))\r
+- t)))))\r
++ (let ((button (or button (button-at (point)))))\r
++ (when button\r
++ (let ((overlay (button-get button 'overlay))\r
++ (lazy-part (button-get button :notmuch-lazy-part)))\r
++ ;; We have a part to toggle if there is an overlay or if there is a lazy part.\r
++ ;; If neither is present we cannot toggle the part so we just return nil.\r
++ (when (or overlay lazy-part)\r
++ (let* ((show (button-get button :notmuch-part-hidden))\r
++ (new-start (button-start button))\r
++ (button-label (button-get button :base-label))\r
++ (old-point (point))\r
++ (properties (text-properties-at (button-start button)))\r
++ (inhibit-read-only t))\r
++ ;; Toggle the button itself.\r
++ (button-put button :notmuch-part-hidden (not show))\r
++ (goto-char new-start)\r
++ (insert "[ " button-label (if show " ]" " (hidden) ]"))\r
++ (set-text-properties new-start (point) properties)\r
++ (let ((old-end (button-end button)))\r
++ (move-overlay button new-start (point))\r
++ (delete-region (point) old-end))\r
++ (goto-char (min old-point (1- (button-end button))))\r
++ ;; Return nil if there is a lazy-part, it is empty, and we are\r
++ ;; trying to show it. In all other cases return t.\r
++ (if lazy-part\r
++ (when show\r
++ (button-put button :notmuch-lazy-part nil)\r
++ (notmuch-show-lazy-part lazy-part button))\r
++ ;; else there must be an overlay.\r
++ (overlay-put overlay 'invisible (not show))\r
++ t)))))))\r
+ \r
+ ;; Part content ID handling\r
+ \r
+@@ -645,14 +646,17 @@ will return nil if the CID is unknown or cannot be retrieved."\r
+ t)\r
+ \r
+ (defun notmuch-show-insert-part-multipart/signed (msg part content-type nth depth button)\r
+- (button-put button 'face 'notmuch-crypto-part-header)\r
+- ;; add signature status button if sigstatus provided\r
++ (when button\r
++ (button-put button 'face 'notmuch-crypto-part-header))\r
++ ;; Add signature status button if sigstatus provided.\r
+ (if (plist-member part :sigstatus)\r
+ (let* ((from (notmuch-show-get-header :From msg))\r
+ (sigstatus (car (plist-get part :sigstatus))))\r
+ (notmuch-crypto-insert-sigstatus-button sigstatus from))\r
+- ;; if we're not adding sigstatus, tell the user how they can get it\r
+- (button-put button 'help-echo "Set notmuch-crypto-process-mime to process cryptographic MIME parts."))\r
++ ;; If we're not adding the signature status, tell the user how\r
++ ;; they can get it.\r
++ (when button\r
++ (button-put button 'help-echo "Set notmuch-crypto-process-mime to process cryptographic MIME parts.")))\r
+ \r
+ (let ((inner-parts (plist-get part :content))\r
+ (start (point)))\r
+@@ -666,17 +670,20 @@ will return nil if the CID is unknown or cannot be retrieved."\r
+ t)\r
+ \r
+ (defun notmuch-show-insert-part-multipart/encrypted (msg part content-type nth depth button)\r
+- (button-put button 'face 'notmuch-crypto-part-header)\r
+- ;; add encryption status button if encstatus specified\r
++ (when button\r
++ (button-put button 'face 'notmuch-crypto-part-header))\r
++ ;; Add encryption status button if encryption status is specified.\r
+ (if (plist-member part :encstatus)\r
+ (let ((encstatus (car (plist-get part :encstatus))))\r
+ (notmuch-crypto-insert-encstatus-button encstatus)\r
+- ;; add signature status button if sigstatus specified\r
++ ;; Add signature status button if signature status is\r
++ ;; specified.\r
+ (if (plist-member part :sigstatus)\r
+ (let* ((from (notmuch-show-get-header :From msg))\r
+ (sigstatus (car (plist-get part :sigstatus))))\r
+ (notmuch-crypto-insert-sigstatus-button sigstatus from))))\r
+- ;; if we're not adding encstatus, tell the user how they can get it\r
++ ;; If we're not adding the encryption status, tell the user how\r
++ ;; they can get it.\r
+ (button-put button 'help-echo "Set notmuch-crypto-process-mime to process cryptographic MIME parts."))\r
+ \r
+ (let ((inner-parts (plist-get part :content))\r
+@@ -976,8 +983,9 @@ useful for quoting in replies)."\r
+ \r
+ (if show-part\r
+ (notmuch-show-insert-bodypart-internal msg part mime-type nth depth button)\r
+- (button-put button :notmuch-lazy-part\r
+- (list msg part mime-type nth depth button)))\r
++ (when button\r
++ (button-put button :notmuch-lazy-part\r
++ (list msg part mime-type nth depth button))))\r
+ \r
+ ;; Some of the body part handlers leave point somewhere up in the\r
+ ;; part, so we make sure that we're down at the end.\r
+-- \r
+2.1.4\r
+\r
projects / notmuch-archives.git / commitdiff