Murg

GUI framework with GTK4 component generation using HTML, CSS and JavaScript

• None of the components generated by Layout contain anything remotely related to a Web-Browser.

• Compiled binary reads the custom HTML and builds the GTK components. Since it is already a pre-built release version, it is pretty fast at generating the UI components.

• The compiler supports CSS and JavaScript compilation, which glues the components and makes the UI interactive.

• The JavaScript engine is Duktape, it supports Babel 6.26.0 and CoreJS 2.6.11.

• The CSS is limited to GTK4 specification.

Installation

Before you clone the shard and build it, install the GTK libraries.

Add this to your application's shard.yml:

dependencies:
  murg:
    github: grkek/murg

And run this command in your terminal:

shards install
./bin/gi-crystal

Code example

Add this to your application.cr:

require "murg"

# Disable GC for because of invalid memory access bug.
GC.disable

html = <<-HTML
  <Application applicationId="com.murg.application">
    <Window title="Untitled Window">
      <Label>Hello, World!</Label>
    </Window>
  </Application>
HTML

builder = Murg::Builder.new
# Make sure you point the path the correct way.
builder.build_from_string(html)

Compile the application.cr file.

crystal run application.cr -Dpreview_mt --error-trace

And you should have a GUI window with a "Hello, World!" text.