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FEATURE: Use Glimmer compiler for widget templates

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Widgets can now specify a template which is precompiled using Glimmer's
AST and then converted into our virtual dom code.

Example:

```javascript
createWidget('post-link-arrow', {
  template: hbs`
    {{#if attrs.above}}
      <a class="post-info arrow" title={{i18n "topic.jump_reply_up"}}>
        {{fa-icon "arrow-up"}}
      </a>
    {{else}}
      <a class="post-info arrow" title={{i18n "topic.jump_reply_down"}}>
        {{fa-icon "arrow-down"}}
      </a>
    {{/if}}
  `,

  click() {
    DiscourseURL.routeTo(this.attrs.shareUrl);
  }
});
```
This commit is contained in:
Robin Ward
2017-06-29 16:22:19 -04:00
parent 7f8a90ef63
commit dffb1fc4ee
10 changed files with 403 additions and 77 deletions
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25
script/compile_hbs.rb Normal file
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ctx = MiniRacer::Context.new(timeout: 15000)
ctx.eval("var self = this; #{File.read("#{Rails.root}/vendor/assets/javascripts/babel.js")}")
ctx.eval(File.read(Ember::Source.bundled_path_for('ember-template-compiler.js')))
ctx.eval("module = {}; exports = {};");
ctx.attach("rails.logger.info", proc{|err| puts(">> #{err.to_s}")})
ctx.attach("rails.logger.error", proc{|err| puts(">> #{err.to_s}")})
ctx.eval <<JS
console = {
prefix: "",
log: function(msg){ rails.logger.info(console.prefix + msg); },
error: function(msg){ rails.logger.error(console.prefix + msg); }
}
JS
source = File.read("#{Rails.root}/lib/javascripts/widget-hbs-compiler.js.es6")
js_source = ::JSON.generate(source, quirks_mode: true)
js = ctx.eval("Babel.transform(#{js_source}, { ast: false, plugins: ['check-es2015-constants', 'transform-es2015-arrow-functions', 'transform-es2015-block-scoped-functions', 'transform-es2015-block-scoping', 'transform-es2015-classes', 'transform-es2015-computed-properties', 'transform-es2015-destructuring', 'transform-es2015-duplicate-keys', 'transform-es2015-for-of', 'transform-es2015-function-name', 'transform-es2015-literals', 'transform-es2015-object-super', 'transform-es2015-parameters', 'transform-es2015-shorthand-properties', 'transform-es2015-spread', 'transform-es2015-sticky-regex', 'transform-es2015-template-literals', 'transform-es2015-typeof-symbol', 'transform-es2015-unicode-regex'] }).code")
ctx.eval(js)
if ARGV[0].present?
source = File.read(ARGV[0])
js_source = ::JSON.generate(source, quirks_mode: true)
puts ctx.eval("exports.compile(#{js_source})");
end