*/
var ResizeTestCase = TestCase("resize");
+ResizeTestCase.data =
+ "X,Y\n" +
+ "1,100\n" +
+ "2,200\n" +
+ "3,300\n" +
+ "4,400\n" +
+ "5,300\n" +
+ "6,100\n";
+
ResizeTestCase.prototype.setUp = function() {
document.body.innerHTML = "<div id='graph'></div>";
};
DygraphOps.dispatchMouseUp_Point(g, x2 - 1, y);
}
- g = new Dygraph(graph,
- "Date,Y\n" +
- "2010/01/01,100\n" +
- "2010/02/01,200\n" +
- "2010/03/01,300\n" +
- "2010/04/01,400\n" +
- "2010/05/01,300\n" +
- "2010/06/01,100\n",
- { highlightCallback : callback });
+ g = new Dygraph(graph, ResizeTestCase.data, {highlightCallback: callback});
strum(g, 300, 640);
assertEquals(6, callbackCount);
strum(g, 300, 500);
assertEquals(6, callbackCount);
};
+
+/**
+ * Tests that a graph created in a not-displayed div works as expected
+ * if the graph options include height and width. Resize not needed.
+ */
+ResizeTestCase.prototype.testHiddenDivWithSizedGraph = function() {
+ var div = document.getElementById("graph");
+
+ div.style.display = 'none';
+ var g = new Dygraph(div, ResizeTestCase.data, {width: 400, height: 300});
+ div.style.display = '';
+
+ var area = g.getArea();
+ assertTrue(area.w > 0);
+ assertTrue(area.h > 0);
+};
+
+/**
+ * Tests that a graph created in a not-displayed div with
+ * CSS-specified size but no graph height or width options works as
+ * expected. The user needs to call resize() on it after displaying
+ * it.
+ */
+ResizeTestCase.prototype.testHiddenDivWithResize = function() {
+ var div = document.getElementById("graph");
+
+ div.style.display = 'none';
+ div.style.width = '400px';
+ div.style.height = '300px';
+
+ // Setting strokeWidth 3 removes any ambiguitiy from the pixel sampling
+ // request, below.
+ var g = new Dygraph(div, ResizeTestCase.data, {strokeWidth: 3});
+ div.style.display = '';
+
+ g.resize();
+ area = g.getArea();
+ assertTrue(area.w > 0);
+ assertTrue(area.h > 0);
+
+ // Regression test: check that graph remains visible after no-op resize.
+ g.resize();
+ var x = Math.floor(g.toDomXCoord(2));
+ var y = Math.floor(g.toDomYCoord(200));
+ assertEquals("Unexpected grid color found at pixel: x: " + x + " y: " + y,
+ [0, 128, 128, 255], Util.samplePixel(g.hidden_, x, y));
+};