GUI::HTMLWindow

This is a highly experimental module. Not so experimental in whether it works (it does), but rather in how developers will interact with it.

Quickstart

window MyWindow {
    # foo exists in the website
    method foo is js-outbound { * }
    
    # bar is callable from the website
    method bar($str) is js-inbound { 
        say $str;
    }
}

with $window = MyWindow.new {
    .add-file: "index.html";
    .add-file: "style/main.css";
    .homepage = 'index.html";
}

$window.open: :640width, :480height;

$window.foo;  # calls foo() in JavaScript in the window

Guide

The UI::HTMLWindow package enables a new declarator, window, which represents a window that is filled with a web view. It is a subclass of the Window class, which will handle all of the magic for you, however, you can add your own methods and has-scoped variables.

In addition to the window, there are two traits that you can use for your methods:

• is js-outbound
  use this to signal (akin to NativeCall) that this function exists in the JavaScript window context. Variables will be repackaged using .to-json, you should add this functionality to classes if you wish for it to be used. Otherwise, if an object is Positional or Associative, it will be handled as a JSON array/objects. Otherwise, the object will have .Str called and handled as a JSON string.
• is js-inbound
  used to signal that this method can be called from JavaScript. To call method foo($int), use Raku.foo(42). You cannot currently return results.

If you have a lot of files to add that are fairly consistent, you may wish to do them during a TWEAK phase. Files are specified from the resources folder. At present, files are added to a temporary folder maintaining whatever structure may exist in the resources folder. Adding non-resource files will be supported in a future version.

Beta notes

• Not currently available on *nix or Windows
• Be careful the rate you send messages from Raku to JS. If you send too many too fast, it is possible to crash WebKit. This will be fixed in the future with appropriate locks.
• The exact way users will interact with this package may change to become more ergonomic. Trust nothing yet.

Version History

• v0.0.1 - v0.0.3
  • Early beta, available only for macOS