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FEATURE: Allow widgets to call _super() when reopened

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This commit is contained in:
Robin Ward 2017-10-30 16:14:20 -04:00
parent a5afc08363
commit d955af5960
1 changed files with 15 additions and 1 deletions
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16
app/assets/javascripts/discourse/widgets/widget.js.es6
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@ -133,7 +133,21 @@ export function reopenWidget(name, opts) {
opts.html = opts.template;
}
Object.keys(opts).forEach(k => existing.prototype[k] = opts[k]);
Object.keys(opts).forEach(k => {
let old = existing.prototype[k];
if (old) {
// Add support for `this._super()` to reopened widgets if the prototype exists in the
// base object
existing.prototype[k] = function(...args) {
let ctx = Object.create(this);
ctx._super = (...superArgs) => old.apply(this, superArgs);
return opts[k].apply(ctx, args);
};
} else {
existing.prototype[k] = opts[k];
}
});
return existing;
}