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Resizing autocomplete suggestion container to take up only required amount of space #2

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Resizing autocomplete suggestion container to take up only required amount of space #2

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28 changes: 24 additions & 4 deletions addon/components/paper-virtual-repeat.js
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Original file line number Diff line number Diff line change
Expand Up @@ -22,6 +22,7 @@ const VirtualRepeatComponent = VirtualEachComponent.extend({
classNameBindings: ['horizontal:md-orient-horizontal'],
rawVisibleItems: computed.mapBy('visibleItems', 'raw'),
containerSelector: undefined,
originalScrollHeight: 0,

actions: {
onScroll(e) {
Expand All @@ -37,12 +38,24 @@ const VirtualRepeatComponent = VirtualEachComponent.extend({
size: computed('initialSize', 'items.[]', 'itemHeight', function() {
let itemSize = this.get('itemHeight');
let fullSize = this.get('items.length') * itemSize;
let initSize = this.get('initialSize');
let originalScrollHeight = this.get('originalScrollHeight');

if (fullSize <= itemSize) {
return itemSize;
let minSize = itemSize;

// no options found. only default option is preloaded
if (initSize < originalScrollHeight) {
minSize = Math.max(itemSize, initSize);
}

if (fullSize <= minSize) {
return minSize;
}
return Math.min(fullSize, this.get('initialSize'));

if (fullSize) {
return Math.min(fullSize, this.get('originalScrollHeight'));
}
return initSize;
}),

height: computed('size', 'horizontal', function() {
Expand Down Expand Up @@ -122,7 +135,14 @@ const VirtualRepeatComponent = VirtualEachComponent.extend({

run.scheduleOnce('afterRender', this, function() {
let element = this.$().get(0);
let initSize = this.get('horizontal') ? element.clientWidth : element.clientHeight;
let elemHeight = element.clientHeight;
this.originalScrollHeight = elemHeight;
// no options found. only default option is preloaded
if (this.$('.md-virtual-repeat-offsetter').get().length > 0
&& this.$('.md-virtual-repeat-offsetter').get(0).firstElementChild.children.length > 0) {
elemHeight = this.$('.md-virtual-repeat-offsetter').get(0).offsetHeight;
}
let initSize = this.get('horizontal') ? element.clientWidth : elemHeight;
this.set('initialSize', initSize);
});
},
Expand Down