From 50bb0778bb1ea88e18eb11a1520c257b30c08ee0 Mon Sep 17 00:00:00 2001
From: Kyle Meyer <kyle@kyleam.com>
Date: Tue, 12 May 2020 00:57:06 -0400
Subject: Add basic support for EWW buffers

---
 Makefile    |  3 ++-
 piem-eww.el | 66 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 piem.texi   |  4 ++++
 3 files changed, 72 insertions(+), 1 deletion(-)
 create mode 100644 piem-eww.el

diff --git a/Makefile b/Makefile
index d5752e5..196969e 100644
--- a/Makefile
+++ b/Makefile
@@ -5,7 +5,8 @@
 BATCH = emacs -Q --batch -L .
 
 all: loadpath piem.info piem.elc \
-	piem-b4.elc piem-elfeed.elc piem-gnus.elc piem-notmuch.elc
+	piem-b4.elc piem-elfeed.elc piem-eww.elc \
+	piem-gnus.elc piem-notmuch.elc
 
 .PHONY: clean
 clean:
diff --git a/piem-eww.el b/piem-eww.el
new file mode 100644
index 0000000..eb96214
--- /dev/null
+++ b/piem-eww.el
@@ -0,0 +1,66 @@
+;;; piem-eww.el --- EWW integration for piem  -*- lexical-binding: t; -*-
+
+;; Copyright (C) 2020  Kyle Meyer
+
+;; Author: Kyle Meyer <kyle@kyleam.com>
+;; Keywords: vc, tools
+;; Version: 0.0.0
+;; Package-Requires: ((emacs "26.3"))
+
+;; This program is free software; you can redistribute it and/or modify
+;; it under the terms of the GNU General Public License as published by
+;; the Free Software Foundation, either version 3 of the License, or
+;; (at your option) any later version.
+
+;; This program is distributed in the hope that it will be useful,
+;; but WITHOUT ANY WARRANTY; without even the implied warranty of
+;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+;; GNU General Public License for more details.
+
+;; You should have received a copy of the GNU General Public License
+;; along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+;;; Commentary:
+
+;;
+
+;;; Code:
+
+(require 'eww)
+(require 'piem)
+
+(defgroup piem-eww nil
+  "EWW integration for piem."
+  :link '(info-link "(piem)EWW integration")
+  :group 'piem)
+
+(defun piem-eww-get-inbox ()
+  "Return inbox name from an EWW buffer."
+  (when (derived-mode-p 'eww-mode)
+    (when-let ((link (plist-get eww-data :url)))
+      (and (string-match piem-link-re link)
+           (match-string 1 link)))))
+
+(defun piem-eww-get-mid ()
+  "Return the message ID of an EWW buffer."
+  (when (derived-mode-p 'eww-mode)
+    (when-let ((link (plist-get eww-data :url)))
+      (and (string-match piem-link-re link)
+           (match-string 2 link)))))
+
+(define-minor-mode piem-eww-mode
+  "Toggle EWW support for piem.
+With a prefix argument ARG, enable piem-eww mode if ARG is
+positive, and disable it otherwise.  If called from Lisp, enable
+the mode if ARG is omitted or nil."
+  :global t
+  :init-value nil
+  (if piem-eww-mode
+      (progn
+        (add-hook 'piem-get-inbox-functions #'piem-eww-get-inbox)
+        (add-hook 'piem-get-mid-functions #'piem-eww-get-mid))
+    (remove-hook 'piem-get-inbox-functions #'piem-eww-get-inbox)
+    (remove-hook 'piem-get-mid-functions #'piem-eww-get-mid)))
+
+;;; piem-eww.el ends here
+(provide 'piem-eww)
diff --git a/piem.texi b/piem.texi
index e861bb8..a29ab58 100644
--- a/piem.texi
+++ b/piem.texi
@@ -49,6 +49,7 @@ This manual is for piem version @value{VERSION}.
 * Notmuch integration::
 * Gnus integration::
 * Elfeed integration::
+* EWW integration::
 * Related tools::
 * Contributing::
 
@@ -80,6 +81,9 @@ Indices
 @node Elfeed integration
 @chapter Elfeed integration
 
+@node EWW integration
+@chapter EWW integration
+
 @node Related tools
 @chapter Related tools
 
-- 
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