fe588cc7f8
* DEV: Fix the function prototype observers deprecation
DEPRECATION: Function prototype extensions have been deprecated, please migrate from function(){}.observes('foo') to observer('foo', function() {}). [deprecation id: function-prototype-extensions.observes] See https://deprecations.emberjs.com/v3.x/#toc_function-prototype-extensions-observes for more details.
* DEV: Fix the function prototype event listeners deprecation
DEPRECATION: Function prototype extensions have been deprecated, please migrate from function(){}.on('foo') to on('foo', function() {}). [deprecation id: function-prototype-extensions.on] See https://deprecations.emberjs.com/v3.x/#toc_function-prototype-extensions-on for more details.
* DEV: Simplify `default as` imports
Co-authored-by: Joffrey JAFFEUX <j.jaffeux@gmail.com>
86 lines
1.8 KiB
JavaScript
86 lines
1.8 KiB
JavaScript
import EmberObject from "@ember/object";
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import discourseComputed from "discourse-common/utils/decorators";
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export function Placeholder(viewName) {
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this.viewName = viewName;
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}
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export default EmberObject.extend(Ember.Array, {
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posts: null,
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_appendingIds: null,
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init() {
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this._appendingIds = {};
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},
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@discourseComputed
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length() {
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return (
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this.get("posts.length") + Object.keys(this._appendingIds || {}).length
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);
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},
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nextObject(index) {
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return this.objectAt(index);
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},
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_changeArray(cb, offset, removed, inserted) {
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this.arrayContentWillChange(offset, removed, inserted);
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cb();
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this.arrayContentDidChange(offset, removed, inserted);
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this.notifyPropertyChange("length");
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},
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clear(cb) {
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this._changeArray(cb, 0, this.get("posts.length"), 0);
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},
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appendPost(cb) {
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this._changeArray(cb, this.get("posts.length"), 0, 1);
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},
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removePost(cb) {
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this._changeArray(cb, this.get("posts.length") - 1, 1, 0);
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},
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refreshAll(cb) {
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const length = this.get("posts.length");
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this._changeArray(cb, 0, length, length);
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},
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appending(postIds) {
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this._changeArray(
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() => {
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const appendingIds = this._appendingIds;
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postIds.forEach(pid => (appendingIds[pid] = true));
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},
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this.length,
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0,
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postIds.length
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);
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},
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finishedAppending(postIds) {
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this._changeArray(
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() => {
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const appendingIds = this._appendingIds;
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postIds.forEach(pid => delete appendingIds[pid]);
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},
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this.get("posts.length") - postIds.length,
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postIds.length,
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postIds.length
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);
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},
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finishedPrepending(postIds) {
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this._changeArray(function() {}, 0, 0, postIds.length);
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},
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objectAt(index) {
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const posts = this.posts;
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return index < posts.length
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? posts[index]
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: new Placeholder("post-placeholder");
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}
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});
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