bug#29565: [PATCH] Enable plugins for ns xwidget webkit (Bug#29565)

[Jaesup Kwak <veshboo@gmail.com>]

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Enable plugins for ns xwidget webkit if
'xwidget-webkit-enable-plugins' is non-nil.

* lisp/xwidget.el (xwidget-webkit-enable-plugins)
* src/nsxwidget.m (XwWebView::initWithFrame)

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From 8156627829bcc26b38bd6d2c7921289f50ad1ad0 Mon Sep 17 00:00:00 2001
From: Jaesup Kwak <veshboo@gmail.com>
Date: Wed, 20 Dec 2017 17:11:06 +0900
Subject: [PATCH] Enable plugins for ns xwidget webkit (Bug#29565)

Enable plugins for ns xwidget webkit if
'xwidget-webkit-enable-plugins' is non-nil.

* lisp/xwidget.el (xwidget-webkit-enable-plugins)
* src/nsxwidget.m (XwWebView::initWithFrame)
---
 lisp/xwidget.el | 5 +++++
 src/nsxwidget.m | 5 +++++
 2 files changed, 10 insertions(+)

diff --git a/lisp/xwidget.el b/lisp/xwidget.el
index a218868965..901a6be9a2 100644
--- a/lisp/xwidget.el
+++ b/lisp/xwidget.el
@@ -300,6 +300,11 @@ xwidget-webkit-callback
 
 (defvar bookmark-make-record-function)
 (defvar isearch-search-fun-function)
+(when (memq window-system '(mac ns))
+  (defvar xwidget-webkit-enable-plugins nil
+    "Enable plugins for xwidget webkit.
+If non-nil, plugins are enabled.  Otherwise, disabled."))
+
 (define-derived-mode xwidget-webkit-mode
     special-mode "xwidget-webkit" "Xwidget webkit view mode."
     (setq buffer-read-only t)
diff --git a/src/nsxwidget.m b/src/nsxwidget.m
index 7895c8bed6..ee295518b8 100644
--- a/src/nsxwidget.m
+++ b/src/nsxwidget.m
@@ -79,6 +79,11 @@ - (id)initWithFrame:(CGRect)frame
   [configuration.preferences setValue:@YES
                                forKey:@"developerExtrasEnabled"];
 
+  Lisp_Object enablePlugins =
+    Fintern (build_string ("xwidget-webkit-enable-plugins"), Qnil);
+  if (!EQ (Fsymbol_value (enablePlugins), Qnil))
+    configuration.preferences.plugInsEnabled = YES;
+
   self = [super initWithFrame:frame configuration:configuration];
   if (self)
     {
-- 
2.15.0