141 lines
3.8 KiB
JavaScript
141 lines
3.8 KiB
JavaScript
import Component from '@ember/component';
|
|
import { inject as service } from '@ember/service';
|
|
import { set, get } from '@ember/object';
|
|
import { schedule } from '@ember/runloop';
|
|
|
|
/**
|
|
* Utility function to set, but actually replace if we should replace
|
|
* then call a function on the thing to be replaced (usually a clean up function)
|
|
*
|
|
* @param obj - target object with the property to replace
|
|
* @param prop {string} - property to replace on the target object
|
|
* @param value - value to use for replacement
|
|
* @param destroy {(prev: any, value: any) => any} - teardown function
|
|
*/
|
|
const replace = function(
|
|
obj,
|
|
prop,
|
|
value,
|
|
destroy = (prev = null, value) => (typeof prev === 'function' ? prev() : null)
|
|
) {
|
|
const prev = obj[prop];
|
|
if (prev !== value) {
|
|
destroy(prev, value);
|
|
}
|
|
return set(obj, prop, value);
|
|
};
|
|
|
|
export default Component.extend({
|
|
tagName: '',
|
|
|
|
data: service('data-source/service'),
|
|
dom: service('dom'),
|
|
logger: service('logger'),
|
|
|
|
onchange: function(e) {},
|
|
onerror: function(e) {},
|
|
|
|
loading: 'eager',
|
|
|
|
isIntersecting: false,
|
|
|
|
init: function() {
|
|
this._super(...arguments);
|
|
this._listeners = this.dom.listeners();
|
|
this._lazyListeners = this.dom.listeners();
|
|
this.guid = this.dom.guid(this);
|
|
},
|
|
willDestroyElement: function() {
|
|
this.actions.close.apply(this);
|
|
this._listeners.remove();
|
|
this._lazyListeners.remove();
|
|
this._super(...arguments);
|
|
},
|
|
|
|
didInsertElement: function() {
|
|
this._super(...arguments);
|
|
if (this.loading === 'lazy') {
|
|
this._lazyListeners.add(
|
|
this.dom.isInViewport(this.dom.element(`#${this.guid}`), inViewport => {
|
|
set(this, 'isIntersecting', inViewport);
|
|
if (!this.isIntersecting) {
|
|
this.actions.close.bind(this)();
|
|
} else {
|
|
this.actions.open.bind(this)();
|
|
}
|
|
})
|
|
);
|
|
}
|
|
},
|
|
didReceiveAttrs: function() {
|
|
this._super(...arguments);
|
|
if (this.loading === 'eager') {
|
|
this._lazyListeners.remove();
|
|
}
|
|
if (this.loading === 'eager' || this.isIntersecting) {
|
|
this.actions.open.apply(this, []);
|
|
}
|
|
},
|
|
actions: {
|
|
// keep this argumentless
|
|
open: function() {
|
|
// get a new source and replace the old one, cleaning up as we go
|
|
const source = replace(
|
|
this,
|
|
'source',
|
|
this.data.open(this.src, this, this.open),
|
|
(prev, source) => {
|
|
// Makes sure any previous source (if different) is ALWAYS closed
|
|
this.data.close(prev, this);
|
|
}
|
|
);
|
|
const error = err => {
|
|
try {
|
|
const error = get(err, 'error.errors.firstObject');
|
|
if (get(error || {}, 'status') !== '429') {
|
|
this.onerror(err);
|
|
}
|
|
this.logger.execute(err);
|
|
} catch (err) {
|
|
this.logger.execute(err);
|
|
}
|
|
};
|
|
// set up the listeners (which auto cleanup on component destruction)
|
|
const remove = this._listeners.add(this.source, {
|
|
message: e => {
|
|
try {
|
|
this.onchange(e);
|
|
} catch (err) {
|
|
error(err);
|
|
}
|
|
},
|
|
error: e => {
|
|
error(e);
|
|
},
|
|
});
|
|
replace(this, '_remove', remove);
|
|
// dispatch the current data of the source if we have any
|
|
if (typeof source.getCurrentEvent === 'function') {
|
|
const currentEvent = source.getCurrentEvent();
|
|
if (currentEvent) {
|
|
schedule('afterRender', () => {
|
|
try {
|
|
this.onchange(currentEvent);
|
|
} catch (err) {
|
|
error(err);
|
|
}
|
|
});
|
|
}
|
|
}
|
|
},
|
|
// keep this argumentless
|
|
close: function() {
|
|
if (typeof this.source !== 'undefined') {
|
|
this.data.close(this.source, this);
|
|
replace(this, '_remove', undefined);
|
|
set(this, 'source', undefined);
|
|
}
|
|
},
|
|
},
|
|
});
|