Sam a3e8c3cd7b FEATURE: Native theme support
This feature introduces the concept of themes. Themes are an evolution
of site customizations.

Themes introduce two very big conceptual changes:

- A theme may include other "child themes", children can include grand
children and so on.

- A theme may specify a color scheme

The change does away with the idea of "enabled" color schemes.

It also adds a bunch of big niceties like

- You can source a theme from a git repo

- History for themes is much improved

- You can only have a single enabled theme. Themes can be selected by
    users, if you opt for it.

On a technical level this change comes with a whole bunch of goodies

- All CSS is now compiled using a custom pipeline that uses libsass
    see /lib/stylesheet

- There is a single pipeline for css compilation (in the past we used
    one for customizations and another one for the rest of the app

- The stylesheet pipeline is now divorced of sprockets, there is no
   reliance on sprockets for CSS bundling

- CSS is generated with source maps everywhere (including themes) this
    makes debugging much easier

- Our "live reloader" is smarter and avoid a flash of unstyled content
   we run a file watcher in "puma" in dev so you no longer need to run
   rake autospec to watch for CSS changes
2017-04-12 10:53:49 -04:00

70 lines
1.9 KiB
JavaScript

import loadScript from 'discourse/lib/load-script';
import { observes } from 'ember-addons/ember-computed-decorators';
export default Ember.Component.extend({
mode: 'css',
classNames: ['ace-wrapper'],
_editor: null,
_skipContentChangeEvent: null,
@observes('content')
contentChanged() {
if (this._editor && !this._skipContentChangeEvent) {
this._editor.getSession().setValue(this.get('content'));
}
},
@observes('mode')
modeChanged() {
if (this._editor && !this._skipContentChangeEvent) {
this._editor.getSession().setMode("ace/mode/" + this.get('mode'));
}
},
_destroyEditor: function() {
if (this._editor) {
this._editor.destroy();
this._editor = null;
}
if (this.appEvents) {
// xxx: don't run during qunit tests
this.appEvents.off('ace:resize', this, this.resize);
}
}.on('willDestroyElement'),
resize() {
if (this._editor) {
this._editor.resize();
}
},
didInsertElement() {
this._super();
loadScript("/javascripts/ace/ace.js", { scriptTag: true }).then(() => {
window.ace.require(['ace/ace'], loadedAce => {
if (!this.element || this.isDestroying || this.isDestroyed) { return; }
const editor = loadedAce.edit(this.$('.ace')[0]);
editor.setTheme("ace/theme/chrome");
editor.setShowPrintMargin(false);
editor.setOptions({fontSize: "14px"});
editor.getSession().setMode("ace/mode/" + this.get('mode'));
editor.on('change', () => {
this._skipContentChangeEvent = true;
this.set('content', editor.getSession().getValue());
this._skipContentChangeEvent = false;
});
editor.$blockScrolling = Infinity;
this.$().data('editor', editor);
this._editor = editor;
if (this.appEvents) {
// xxx: don't run during qunit tests
this.appEvents.on('ace:resize', self, self.resize);
}
});
});
}
});