fix(infiniteGrid): fire append event after resize

ref naver#450
sculove · Mar 9, 2017 · 03a0e57 · 03a0e57
1 parent e111dec
commit 03a0e57
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Showing 2 changed files with 19 additions and 1 deletion.
diff --git a/src/infiniteGrid.js b/src/infiniteGrid.js
@@ -169,6 +169,7 @@ eg.module("infiniteGrid", ["jQuery", eg, window, document], function($, ns, glob
 				self._refreshViewport();
 				(self.$el.innerWidth() !== self._containerWidth) && self.layout(true);
 				self._resizeTimeout = null;
+				self._prevScrollTop = -1;
 			}, 100);
 		},
 		_refreshViewport: function() {

diff --git a/test/unit/js/infiniteGrid.test.js b/test/unit/js/infiniteGrid.test.js
@@ -874,7 +874,8 @@ QUnit.test("if width is not changed, layout should be not called on resize event
 	$global.on("resize", function(e) {
 		resizeCount++;
 	});
-
+	$global.scrollTop(10000);
+
 	// When
 	$global.trigger("resize");
 
@@ -921,6 +922,22 @@ QUnit.test("check _refreshViewport method", function(assert) {
 });
 
 
+QUnit.test("check _prevScrollTop after resize event.", function(assert) {
+	// Given
+	var done = assert.async();
+	var inst = this.inst = new eg.InfiniteGrid("#grid");
+	assert.equal(inst._prevScrollTop, 0);
+
+	// When
+	inst._onResize();
+
+	// Then
+	setTimeout(function() {
+		assert.equal(inst._prevScrollTop, -1);
+		done();
+	},200);
+});
+
 QUnit.module("infiniteGrid layout(false) Test", {
 	beforeEach : function() {
 		this.inst = new eg.InfiniteGrid("#nochildren_grid", {