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import Ember from 'ember';
export default Ember.Component.extend({
store : Ember.inject.service('store'),
highlightedItemIndex: -1,
items : [],
query: null,
didInsertElement() {
const $input = Ember.$(this.element).find(".search-input");
const $autocompleteContainer = Ember.$(this.element).find(".autocomplete-container");
this.$input = $input;
this.$autocompleteContainer = $autocompleteContainer;
const width = $input.width() + 300;
$autocompleteContainer.css({
"width" : width+"px",
"top" : $input.outerHeight()
});
$input.keyup((e) => {
if(e.which === 13) {
this.onEnter();
} else if(e.which === 27) {
this.onEsc();
} else if(e.which === 40) {
this.onDown();
} else if(e.which === 38) {
this.onUp();
}
});
$input.focusin(() => {
this.showAutocompleteList();
});
$input.focusout(() => {
//Timeout is needed to make sure that click event fires
Ember.run.later((() => {
this.hideAutocompleteList();
}), 100);
});
},
willDestroyElement() {
this._super(...arguments);
this.$input.off('keyup');
this.$input.off('focusin');
this.$input.off('focusout');
},
onEnter() {
if(this.get('highlightedItemIndex') !== -1) {
const item = this.get('items')[this.get('highlightedItemIndex')];
if(item) {
this.hideAutocompleteList();
this.get('selectItem')(item);
}
} else {
this.hideAutocompleteList();
this.get('onSubmit')(this.get('query'));
}
},
onEsc() {
this.hideAutocompleteList();
},
onDown() {
this.showAutocompleteList();
const index = this.get('highlightedItemIndex');
const items = this.get('items');
const itemsCount = items.length;
if(itemsCount > 0) {
if(index !== -1) {
if(index === itemsCount - 1) {
this.set('highlightedItemIndex',0);
} else {
this.set('highlightedItemIndex',index+1);
}
} else {
this.set('highlightedItemIndex',0);
}
}
},
onUp() {
this.showAutocompleteList();
const index = this.get('highlightedItemIndex');
const items = this.get('items');
const itemsCount = items.length;
if(itemsCount > 0) {
if(index !== -1) {
if(index === 0) {
this.set('highlightedItemIndex',itemsCount - 1);
} else {
this.set('highlightedItemIndex',index - 1);
}
} else {
this.set('highlightedItemIndex',itemsCount - 1);
}
}
},
hideAutocompleteList() {
this.set('highlightedItemIndex',-1);
this.$autocompleteContainer.css({
"display":"none",
});
},
showAutocompleteList() {
if(this.get('query') !== "") {
this.$autocompleteContainer.css({
"display":"block"
});
}
},
searchUrlObserver : Ember.observer('createSearchUrlFunction',function() {
this.notifyPropertyChange('query');
}),
queryObserver : Ember.observer("query",function() {
if(this.get('query')) {
const perPage = this.get('maxItems') ? this.get('maxItems') : 10;
const url = this.get('createSearchUrlFunction')(this.get('query')) + "?per_page=" + perPage;
Ember.run.debounce(this, () => {
this.get('store').loadFromUrlPaginated(url).then((result) => {
Ember.run.next(() => {
this.set('items',result.items);
});
});
}, 400);
this.showAutocompleteList();
} else {
this.hideAutocompleteList();
this.set('items',[]);
}
}),
actions : {
onSubmit() {
this.hideAutocompleteList();
this.get('onSubmit')(this.get('query'));
},
goToDefinition (item) {
this.hideAutocompleteList();
this.get('selectItem')(item);
}
}
});
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