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fix: Make sure children are requested for new expanded parents #2058

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merged 4 commits into from
Oct 16, 2020
Merged

fix: Make sure children are requested for new expanded parents #2058

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bcba3dc
fix: Make sure children are requested for new expanded parents
tomivirkki Oct 14, 2020
68baff2
Fix a linter issue
tomivirkki Oct 14, 2020
71a4367
fix: restore pendingScrollToIndex
tomivirkki Oct 15, 2020
c98de27
Revert "fix: restore pendingScrollToIndex"
tomivirkki Oct 16, 2020
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3 changes: 1 addition & 2 deletions src/vaadin-grid-data-provider-mixin.html
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Original file line number Diff line number Diff line change
Expand Up @@ -382,8 +382,7 @@
.forEach(row => {
const cachedItem = this._cache.getItemForIndex(row.index);
if (cachedItem) {
this._toggleAttribute('loading', false, row);
this._updateItem(row, cachedItem);
this._getItem(row.index, row);
}
});

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14 changes: 14 additions & 0 deletions test/data-provider.html
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Expand Up @@ -303,6 +303,20 @@
expect(grid.dataProvider.getCall(0).args[0].parentItem).to.be.undefined;
});

it('should request items when scrolled to an expanded parent', done => {
grid.size = 51;
grid.dataProvider = sinon.spy(infiniteDataProvider);
grid.itemIdPath = 'value';
grid.expandedItems = [{value: 'foo50'}];
flushGrid(grid);
animationFrameFlush(() => {
grid.$.table.scrollTop = 10000;
flushGrid(grid);
expect(grid.dataProvider.lastCall.args[0].parentItem).to.be.ok;
done();
});
});

it('should request pages from 0', () => {
expect(grid.dataProvider.getCall(0).args[0].page).to.equal(0);
expect(grid.dataProvider.getCall(1).args[0].page).to.equal(1);
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