blob: 01e14de8feb935b864166f324d7fcf3bc543e99b [file] [log] [blame]
* Copyright (c) 2014, the Dart project authors. Please see the AUTHORS file
* for details. All rights reserved. Use of this source code is governed by a
* BSD-style license that can be found in the LICENSE file.
* @assertion
* @description
import "dart:html";
import "dart:math" as Math;
import "../../../testharness.dart";
import "../resources/subpixel-utils.dart" as SubPixelLayout;
const String htmlEL1 = r'''
#container {
font: 20px/1 Ahem, sans-serif;
text-align: right;
width: 200px;
height: 120px;
color: rgba(0,0,200, 0.25);
margin: 25px;
background-color: grey;
#right-border-box {
float: right;
border-top-left-radius: 100px 30px;
border-bottom-left-radius: 100px 30px;
shape-outside: border-box;
width: 100px;
height: 80px;
margin-top: 20px;
margin-bottom: 20px;
background-color: blue;
background-clip: border-box;
const String htmlEL2 = r'''
<div id="container">
<div id="right-border-box"></div>
<span id="a">X</span><br>
<span id="b">X</span><br>
<span id="c">X</span><br>
<span id="d">X</span><br>
<span id="e">X</span><br>
<span id="f">X</span>
<div id="console"></div>
Rectangle elementRect(elementId) {
Rectangle s = document.getElementById("container").getBoundingClientRect();
Rectangle r = document.getElementById(elementId).getBoundingClientRect();
return new Rectangle(r.left - s.left, -, r.width, r.height);
// You'll find the equation for the X intercept of an elliptical arc here (among other places):
int cornerEllipseLeftXIntercept(y, cx, rx, ry) {
var containerWidth = document.getElementById("container").getBoundingClientRect().width;
return SubPixelLayout.snapToLayoutUnit(containerWidth - (cx + rx * Math.sqrt(1 - Math.pow((ry - y) / ry, 2))));
void main() {
document.head.appendHtml(htmlEL1, treeSanitizer: new NullTreeSanitizer());
document.body.appendHtml(htmlEL2, treeSanitizer: new NullTreeSanitizer());
// The layout implementation rounds up the width right of right floats. To account for that we compare truncated
// values for the right edge of spans b and e, since they intercept the box's rounded corners.
shouldBe(elementRect('a').top, 0);
shouldBe(elementRect('a').right, 200);
shouldBe(elementRect('b').top, 20);
shouldBe(elementRect('b').right.floor(), cornerEllipseLeftXIntercept(40, 0, 100, 30).floor());
shouldBe(elementRect('c').top, 40);
shouldBe(elementRect('c').right, 100);
shouldBe(elementRect('d').top, 60);
shouldBe(elementRect('d').right, 100);
shouldBe(elementRect('e').top, 80);
shouldBe(elementRect('e').right.floor(), cornerEllipseLeftXIntercept(40, 0, 100, 30).floor());
shouldBe(elementRect('f').top, 100);
shouldBe(elementRect('f').right, 200);