Add support for user actions in the link menu

Allows the user to define additional entries in the link menu which will
execute the given program/script. Each actions is defined using the
"link_action" option. The link URL is stored in the $url enviroment
variable and the current page in $origin, so the user can customize how
do the handling.

Here is a simple example to add three new entries:

    link_action="Debug variables:echo url=$url origin=$origin"
    link_action="Open in MPV:mpv $url"
    link_action="Open in Firefox:firefox $url"

The command is spawned in a forked process using the system() call,
which uses the shell to expand any variable. In particular, the $url
variable is set to the current URL being opened.

Fixes: https://github.com/dillo-browser/dillo/issues/3

1 files changed, 2 insertions, 1 deletions

diff --git a/src/menu.hh b/src/menu.hh
index a8170e89..60d230a4 100644
--- a/src/menu.hh
+++ b/src/menu.hh
@@ -9,7 +9,8 @@ extern "C" {
 
 void a_Menu_page_popup(BrowserWindow *bw, const DilloUrl *url,
                        bool_t has_bugs, void *v_cssUrls);
-void a_Menu_link_popup(BrowserWindow *bw, const DilloUrl *url);
+void a_Menu_link_popup(BrowserWindow *bw, const DilloUrl *url,
+                       const DilloUrl *page_url);
 void a_Menu_image_popup(BrowserWindow *bw, const DilloUrl *url,
                         bool_t loaded_img, DilloUrl *page_url,
                         DilloUrl *link_url);