From 24cba52bfe4e92d2e7082f28d9ae7fe788ef2701 Mon Sep 17 00:00:00 2001
From: Arun Isaac
Date: Tue, 20 Aug 2019 23:17:35 +0530
Subject: Initial commit

---
 ennu-html.el | 86 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 86 insertions(+)
 create mode 100644 ennu-html.el

(limited to 'ennu-html.el')

diff --git a/ennu-html.el b/ennu-html.el
new file mode 100644
index 0000000..d2c4b76
--- /dev/null
+++ b/ennu-html.el
@@ -0,0 +1,86 @@
+;; -*- lexical-binding: t -*-
+
+(require 'ox)
+(require 'subr-x)
+(require 'xmlgen)
+
+(defun expand-file-name* (name default-directory)
+  (expand-file-name name (concat "/" default-directory)))
+
+(org-export-define-derived-backend 'ennu-html 'html
+  :options-alist
+  '((:html-inline-image-rules
+     nil nil '(("image" . "\\.\\(jpeg\\|jpg\\|png\\|gif\\|svg\\)\\'")) t)
+    (:summary "SUMMARY" nil nil t)
+    (:thumbnail "THUMBNAIL" nil nil t)))
+
+;; TODO: Pass title through org-export-data-with-backend or something
+;; similar in order to export org syntax in title
+(defun ennu-export-post (path desc backend)
+  (let ((post (concat (expand-file-name path (ennu-setting :posts-directory))
+                      ".org")))
+    (xmlgen `(a :href ,(expand-file-name*
+                        path (ennu-setting :posts-directory))
+                ,(or desc (plist-get (ennu-post-metadata post) :title))))))
+
+(org-link-set-parameters
+ "post" :export 'ennu-export-post)
+
+(defun ennu-export-image (path desc backend)
+  (let ((img `(img :src ,(expand-file-name*
+                          (ennu-image-output-filename
+                           path (ennu-setting :default-image-width))
+                          (ennu-setting :images-directory)))))
+    (xmlgen (if (ennu-setting :image-link-width)
+                `(a :href ,(expand-file-name*
+                            (ennu-image-output-filename
+                             path (ennu-setting :image-link-width))
+                            (ennu-setting :images-directory))
+                    ,img)
+              img))))
+
+(org-link-set-parameters
+ "image" :export 'ennu-export-image)
+
+(defun ennu-export-thumbnail (path desc backend)
+  (xmlgen
+   `(img :src ,(expand-file-name*
+                (ennu-image-output-filename
+                 path (ennu-setting :thumbnail-image-width))
+                (ennu-setting :images-directory)))))
+
+(org-link-set-parameters
+ "thumbnail" :export 'ennu-export-thumbnail)
+
+(defun ennu-export-video (path desc backend)
+  (let ((video-directory (ennu-setting :video-directory)))
+    (xmlgen
+     `(video :src ,(expand-file-name* path video-directory)
+             :poster ,(expand-file-name* (ennu-video-poster path) video-directory)
+             :preload "none"
+             :controls ""))))
+
+(org-link-set-parameters
+ "video" :export 'ennu-export-video)
+
+(defun ennu-export-static (path desc backend)
+  (xmlgen
+   `(a :href ,(expand-file-name* path (ennu-setting :static-directory))
+       ,desc)))
+
+(org-link-set-parameters
+ "static" :export 'ennu-export-static)
+
+(org-link-set-parameters
+ "tangle" :export 'ennu-export-static)
+
+(defun ennu-export-tag (tag desc backend)
+  (xmlgen
+   `(a :href ,(expand-file-name* (concat tag ".html")
+                                 (ennu-setting :tag-directory))
+       ,(or desc tag))))
+
+(org-link-set-parameters
+ "tag" :export 'ennu-export-tag)
+
+(provide 'ennu-html)
-- 
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