mirror of https://codeberg.org/cage/tinmop/
70 lines
2.6 KiB
Common Lisp
70 lines
2.6 KiB
Common Lisp
;; tinmop: a multiprotocol client
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;; Copyright © cage
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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.
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;; If not, see [[http://www.gnu.org/licenses/][http://www.gnu.org/licenses/]].
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(in-package :gemini-viewer)
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(defstruct gemini-metadata
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(links)
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(history)
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(source-file))
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(defgeneric append-metadata-link (object link))
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(defgeneric append-metadata-source (object source-text))
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(defmethod append-metadata-link ((object gemini-metadata) link)
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(setf (gemini-metadata-links object)
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(append (gemini-metadata-links object)
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link)))
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(defmethod append-metadata-source ((object gemini-metadata) source-file)
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(setf (gemini-metadata-source-file object)
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(strcat (gemini-metadata-source-file object)
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source-file))
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object)
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(defun push-url-to-history (window url)
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(let* ((metadata (message-window:metadata window))
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(history (reverse (gemini-metadata-history metadata)))
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(last-entry (safe-last-elt (gemini-metadata-history metadata))))
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(when (string/= last-entry
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url)
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(setf (gemini-metadata-history metadata)
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(reverse (push url history))))
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window))
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(defun pop-url-from-history (window)
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(with-accessors ((metadata message-window:metadata)) window
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(let* ((history (gemini-metadata-history metadata))
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(new-history (misc:safe-all-but-last-elt history)))
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(setf (gemini-metadata-history metadata)
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new-history)
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(misc:safe-last-elt new-history))))
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(defun maybe-initialize-metadata (window)
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(when (not (gemini-metadata-p (message-window:metadata window)))
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(setf (message-window:metadata window)
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(make-gemini-metadata)))
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(message-window:metadata window))
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(defun current-gemini-url (&optional (window specials:*message-window*))
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(when (message-window:gemini-window-p window)
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(when-let* ((metadata (message-window:metadata specials:*message-window*))
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(history (gemini-viewer:gemini-metadata-history metadata))
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(link (last-elt history)))
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link)))
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