From 2d3fbd0eec2806b15533b04edf8620f4f5c389d4 Mon Sep 17 00:00:00 2001
From: Yaakov Selkowitz <yselkowi@redhat.com>
Date: Thu, 30 Nov 2023 18:26:51 -0500
Subject: [PATCH] main: make WebKit2 optional

webkitgtk is being removed from the core desktop dependencies, so it
should not be presumed available.
---
 meson.build         |  1 -
 src/ui/main.js      |  1 -
 src/viewers/html.js | 25 +++++++++++++++++++------
 3 files changed, 19 insertions(+), 8 deletions(-)

diff --git a/meson.build b/meson.build
index c7c4428..5994e21 100644
--- a/meson.build
+++ b/meson.build
@@ -21,7 +21,6 @@ gtk_x11_dep = dependency('gtk+-x11-3.0', required: get_option('X11'))
 gtk_wayland_dep = dependency('gtk+-wayland-3.0', version: '>= 3.21.5', required: get_option('wayland'))
 gtksourceview_dep = dependency('gtksourceview-4', version: '>=4.0.3')
 harfbuzz_dep = dependency('harfbuzz', version: '>=0.9.9')
-webkit_dep = dependency('webkit2gtk-4.1')
 
 bindir = join_paths(get_option('prefix'), get_option('bindir'))
 datadir = join_paths(get_option('prefix'), get_option('datadir'))
diff --git a/src/ui/main.js b/src/ui/main.js
index 2dd6124..9f8638a 100644
--- a/src/ui/main.js
+++ b/src/ui/main.js
@@ -39,7 +39,6 @@ pkg.require({
     Pango: '1.0',
     Soup: '3.0',
     Sushi: '1.0',
-    WebKit2: '4.1',
 });
 
 const {Gio, GLib} = imports.gi;
diff --git a/src/viewers/html.js b/src/viewers/html.js
index 985d957..01bd59f 100644
--- a/src/viewers/html.js
+++ b/src/viewers/html.js
@@ -23,11 +23,22 @@
  *
  */
 
-const {Gtk, GLib, GObject, Sushi, WebKit2} = imports.gi;
+const {Gtk, GLib, GObject, Sushi} = imports.gi;
+
+var WebKit2;
+try {
+    imports.gi.versions.WebKit2 = '4.1';
+    WebKit2 = imports.gi.WebKit2;
+} catch(e) {
+}
+
+var isAvailable = function() {
+    return WebKit2 !== undefined;
+}
 
 const Renderer = imports.ui.renderer;
 
-var Klass = GObject.registerClass({
+var Klass = isAvailable() ? GObject.registerClass({
     Implements: [Renderer.Renderer],
     Properties: {
         fullscreen: GObject.ParamSpec.boolean('fullscreen', '', '',
@@ -67,8 +78,10 @@ var Klass = GObject.registerClass({
     get moveOnClick() {
         return false;
     }
-});
+}) : undefined;
 
-var mimeTypes = [
-    'text/html'
-];
+var mimeTypes = [];
+if (isAvailable())
+    mimeTypes = [
+        'text/html'
+    ];
-- 
2.43.0