rofi-emoji: init at 2.1.2

This plugin is intended to be supplied to the `rofi` wrapper through an
override:

    pkgs.rofi.override { plugins = [ rofi-emoji ]; }

pkgs/applications/misc/rofi-emoji/0001-Patch-plugindir-to-output.patch

@@ -0,0 +1,25 @@
+From 695e7a441fc28b874e65917fe2c0059b5b8ca749 Mon Sep 17 00:00:00 2001
+From: Cole Helbling <cole.e.helbling@outlook.com>
+Date: Sat, 28 Mar 2020 23:46:03 -0700
+Subject: [PATCH] Patch plugindir to output
+
+---
+ configure.ac | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/configure.ac b/configure.ac
+index 75e476f..cb1ddf7 100644
+--- a/configure.ac
++++ b/configure.ac
+@@ -55,7 +55,7 @@ PKG_CHECK_MODULES([glib],     [glib-2.0 >= 2.40 gio-unix-2.0 gmodule-2.0 ])
+ PKG_CHECK_MODULES([cairo],    [cairo])
+ PKG_CHECK_MODULES([rofi],     [rofi])
+ 
+-[rofi_PLUGIN_INSTALL_DIR]="`$PKG_CONFIG --variable=pluginsdir rofi`"
++[rofi_PLUGIN_INSTALL_DIR]="`echo $out/lib/rofi`"
+ AC_SUBST([rofi_PLUGIN_INSTALL_DIR])
+ 
+ LT_INIT([disable-static])
+-- 
+2.25.1
+

pkgs/applications/misc/rofi-emoji/default.nix

@@ -0,0 +1,69 @@
+{ stdenv
+, lib
+, fetchFromGitHub
+, fetchpatch
+, substituteAll
+, makeWrapper
+
+, autoreconfHook
+, pkgconfig
+
+, cairo
+, glib
+, libnotify
+, rofi-unwrapped
+, wl-clipboard
+, xclip
+, xsel
+}:
+
+stdenv.mkDerivation rec {
+  pname = "rofi-emoji";
+  version = "2.1.2";
+
+  src = fetchFromGitHub {
+    owner = "Mange";
+    repo = pname;
+    rev = "v${version}";
+    sha256 = "0knsvsdff2c7ww94120bq92735qrfriyd28mi0n72ccb2iikyi8b";
+  };
+
+  patches = [
+    # Look for plugin-related files in $out/lib/rofi
+    ./0001-Patch-plugindir-to-output.patch
+  ];
+
+  postPatch = ''
+    patchShebangs clipboard-adapter.sh
+  '';
+
+  postFixup = ''
+    chmod +x $out/share/rofi-emoji/clipboard-adapter.sh
+    wrapProgram $out/share/rofi-emoji/clipboard-adapter.sh \
+      --prefix PATH ":" ${lib.makeBinPath [ libnotify wl-clipboard xclip xsel ]}
+  '';
+
+  nativeBuildInputs = [
+    autoreconfHook
+    pkgconfig
+  ];
+
+  buildInputs = [
+    cairo
+    glib
+    libnotify
+    makeWrapper
+    rofi-unwrapped
+    wl-clipboard
+    xclip
+    xsel
+  ];
+
+  meta = with lib; {
+    description = "An emoji selector plugin for Rofi";
+    homepage = "https://github.com/Mange/rofi-emoji";
+    license = licenses.mit;
+    maintainers = with maintainers; [ cole-h ];
+    platforms = platforms.linux;
+  };
+}

pkgs/top-level/all-packages.nix

@@ -20675,6 +20675,8 @@ in
 
   rofi-calc = callPackage ../applications/science/math/rofi-calc { };
 
+  rofi-emoji = callPackage ../applications/misc/rofi-emoji { };
+
   ympd = callPackage ../applications/audio/ympd { };
 
   nload = callPackage ../applications/networking/nload { };