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test_range_bounds.html
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<!DOCTYPE HTML>
<html>
<!--
https://bugzilla.mozilla.org/show_bug.cgi?id=421640
-->
<head>
<title>Test for Bug 396392</title>
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
<script type="text/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
<script type="text/javascript" src="/tests/SimpleTest/EventUtils.js"></script>
<link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
</head>
<body>
<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=396392">Mozilla Bug Range getClientRects and getBoundingClientRect</a>
<div id="content" style="font-family:monospace;font-size:12px;width:100px">
<p>000000<span>0</span></p><div>00000<span>0</span></div><p>0000<span>0000</span>0000</p><div><span>000000000000 00000000000000 000000</span></div><div>000000000000 00000000000003 100305</div>
</div>
<div id="mixeddir" style="font-family:monospace;font-size:12px;width:100px"><span>english <bdo id="bdo" dir="rtl">rtl-overide english</bdo> word</span></div>
<div id="mixeddir2" style="font-family:monospace;font-size:12px"><span>english <bdo id="bdo2" dir="rtl">rtl-override english</bdo> word</span></div>
<pre id="test">
<script class="testbody" type="text/javascript">
var isLTR=true;
function isEmptyRect(rect, name) {
name = (isLTR ? 'isLTR ' : 'isRTL ') + name;
is(rect.left, 0, name+'empty rect should have left = 0');
is(rect.right, 0, name+'empty rect should have right = 0');
is(rect.top, 0, name+'empty rect should have top = 0');
is(rect.bottom, 0, name+'empty rect should have bottom = 0');
is(rect.width, 0, name+'empty rect should have width = 0');
is(rect.height, 0, name+'empty rect should have height = 0');
}
function isEmptyRectList(rectlist, name) {
name = (isLTR ? 'isLTR ' : 'isRTL ') + name;
is(rectlist.length, 0, name + 'empty rectlist should have zero rects');
}
// round coordinates to the nearest 1/256 of a pixel
function roundCoord(x) {
return Math.round(x * 256) / 256;
}
function _getRect(r) {
if (r.length) //array
return "{left:"+roundCoord(r[0])+",right:"+roundCoord(r[1])+
",top:" +roundCoord(r[2])+",bottom:"+roundCoord(r[3])+
",width:"+roundCoord(r[4])+",height:"+roundCoord(r[5])+"}";
else
return "{left:"+roundCoord(r.left)+",right:"+roundCoord(r.right)+
",top:"+roundCoord(r.top)+",bottom:"+roundCoord(r.bottom)+
",width:"+roundCoord(r.width)+",height:"+roundCoord(r.height)+"}";
}
function runATest(obj) {
var range = document.createRange();
try {
range.setStart(obj.range[0],obj.range[1]);
if (obj.range.length>2) {
range.setEnd(obj.range[2]||obj.range[0], obj.range[3]);
}
//test getBoundingClientRect()
var rect = range.getBoundingClientRect();
var testname = (isLTR ? 'isLTR ' : 'isRTL ') +
'range.getBoundingClientRect for ' + obj.name;
if (obj.rect) {
is(_getRect(rect),_getRect(obj.rect), testname);
} else {
isEmptyRect(rect,testname+": ");
}
//test getClientRects()
var rectlist = range.getClientRects();
testname = (isLTR ? 'isLTR ' : 'isRTL ') +
'range.getClientRects for '+obj.name;
if (!obj.rectList) {
//rectList is not specified, use obj.rect to figure out rectList
obj.rectList = obj.rect?[obj.rect]:[];
}
if (!obj.rectList.length) {
isEmptyRectList(rectlist, testname+": ");
} else {
is(rectlist.length, obj.rectList.length, testname+' should return '+obj.rectList.length+' rects.');
if(!obj.rectList.forEach){
//convert RectList to a real array
obj.rectList=Array.prototype.slice.call(obj.rectList, 0);
}
obj.rectList.forEach(function(rect,i) {
is(_getRect(rectlist[i]),_getRect(rect),testname+": item at "+i);
});
}
} finally {
range.detach();
}
}
/** Test for Bug 396392 **/
function doTest(){
var root = document.getElementById('content');
var firstP = root.firstElementChild, spanInFirstP = firstP.childNodes[1],
firstDiv = root.childNodes[2], spanInFirstDiv = firstDiv.childNodes[1],
secondP = root.childNodes[3], spanInSecondP = secondP.childNodes[1],
secondDiv = root.childNodes[4], spanInSecondDiv = secondDiv.firstChild,
thirdDiv = root.childNodes[5];
var firstPRect = firstP.getBoundingClientRect(),
spanInFirstPRect = spanInFirstP.getBoundingClientRect(),
firstDivRect = firstDiv.getBoundingClientRect(),
spanInFirstDivRect = spanInFirstDiv.getBoundingClientRect(),
secondPRect = secondP.getBoundingClientRect(),
secondDivRect = secondDiv.getBoundingClientRect(),
spanInSecondPRect = spanInSecondP.getBoundingClientRect(),
spanInSecondDivRect = spanInSecondDiv.getBoundingClientRect(),
spanInSecondDivRectList = spanInSecondDiv.getClientRects();
var widthPerchar = spanInSecondPRect.width / spanInSecondP.firstChild.length;
var testcases = [
{name:'nodesNotInDocument', range:[document.createTextNode('abc'), 1],
rect:null},
{name:'collapsedInBlockNode', range:[firstP, 2], rect:null},
{name:'collapsedAtBeginningOfTextNode', range:[firstP.firstChild, 0],
rect:[spanInFirstPRect.left - 6 * widthPerchar,
spanInFirstPRect.left - 6 * widthPerchar, spanInFirstPRect.top,
spanInFirstPRect.bottom, 0, spanInFirstPRect.height]},
{name:'collapsedWithinTextNode', range:[firstP.firstChild, 1],
rect:[spanInFirstPRect.left - 5 * widthPerchar,
spanInFirstPRect.left - 5 * widthPerchar,
spanInFirstPRect.top, spanInFirstPRect.bottom, 0, spanInFirstPRect.height]},
{name:'collapsedAtEndOfTextNode', range:[firstP.firstChild, 6],
rect:[spanInFirstPRect.left, spanInFirstPRect.left,
spanInFirstPRect.top, spanInFirstPRect.bottom, 0, spanInFirstPRect.height]},
{name:'singleBlockNode', range:[root, 1, root, 2], rect:firstPRect},
{name:'twoBlockNodes', range:[root, 1, root, 3],
rect:[firstPRect.left, firstPRect.right, firstPRect.top,
firstDivRect.bottom, firstPRect.width,
firstDivRect.bottom - firstPRect.top],
rectList:[firstPRect, firstDivRect]},
{name:'endOfTextNodeToEndOfAnotherTextNodeInAnotherBlock',
range:[spanInFirstP.firstChild, 1, firstDiv.firstChild, 5],
rect:[spanInFirstDivRect.left - 5*widthPerchar, spanInFirstDivRect.left,
spanInFirstDivRect.top, spanInFirstDivRect.bottom, 5 * widthPerchar,
spanInFirstDivRect.height]},
{name:'startOfTextNodeToStartOfAnotherTextNodeInAnotherBlock',
range:[spanInFirstP.firstChild, 0, firstDiv.firstChild, 0],
rect:[spanInFirstPRect.left, spanInFirstPRect.left + widthPerchar, spanInFirstPRect.top,
spanInFirstPRect.bottom, widthPerchar, spanInFirstPRect.height]},
{name:'endPortionOfATextNode', range:[firstP.firstChild, 3,
firstP.firstChild, 6],
rect:[spanInFirstPRect.left - 3*widthPerchar, spanInFirstPRect.left,
spanInFirstPRect.top, spanInFirstPRect.bottom, 3*widthPerchar, spanInFirstPRect.height]},
{name:'startPortionOfATextNode', range:[firstP.firstChild, 0,
firstP.firstChild, 3],
rect:[spanInFirstPRect.left - 6*widthPerchar,
spanInFirstPRect.left - 3*widthPerchar, spanInFirstPRect.top,
spanInFirstPRect.bottom, 3 * widthPerchar, spanInFirstPRect.height]},
{name:'spanTextNodes', range:[secondP.firstChild, 1, secondP.lastChild, 1],
rect:[spanInSecondPRect.left - 3*widthPerchar, spanInSecondPRect.right +
widthPerchar, spanInSecondPRect.top, spanInSecondPRect.bottom,
spanInSecondPRect.width + 4*widthPerchar, spanInSecondPRect.height],
rectList:[[spanInSecondPRect.left - 3*widthPerchar, spanInSecondPRect.left,
spanInSecondPRect.top, spanInSecondPRect.bottom, 3 * widthPerchar,
spanInSecondPRect.height],
spanInSecondPRect,
[spanInSecondPRect.right, spanInSecondPRect.right + widthPerchar,
spanInSecondPRect.top, spanInSecondPRect.bottom, widthPerchar,
spanInSecondPRect.height]]}
];
testcases.forEach(runATest);
// testcases that have different ranges in LTR and RTL
var directionDependentTestcases;
if (isLTR) {
directionDependentTestcases = [
{name:'spanAcrossLines',range:[spanInSecondDiv.firstChild, 1, spanInSecondDiv.firstChild, 30],
rect: spanInSecondDivRect,
rectList:[[spanInSecondDivRectList[0].left+widthPerchar,
spanInSecondDivRectList[0].right, spanInSecondDivRectList[0].top,
spanInSecondDivRectList[0].bottom, spanInSecondDivRectList[0].width - widthPerchar,
spanInSecondDivRectList[0].height],
spanInSecondDivRectList[1],
[spanInSecondDivRectList[2].left,
spanInSecondDivRectList[2].right - 4 * widthPerchar, spanInSecondDivRectList[2].top,
spanInSecondDivRectList[2].bottom,
spanInSecondDivRectList[2].width - 4 * widthPerchar,
spanInSecondDivRectList[2].height]]},
{name:'textAcrossLines',range:[thirdDiv.firstChild, 13, thirdDiv.firstChild, 28],
rect: [spanInSecondDivRectList[1].left, spanInSecondDivRectList[1].right,
spanInSecondDivRectList[1].top + secondDivRect.height,
spanInSecondDivRectList[1].bottom + secondDivRect.height,
spanInSecondDivRectList[1].width, spanInSecondDivRectList[1].height]}
];
} else {
directionDependentTestcases = [
{name:'spanAcrossLines',range:[spanInSecondDiv.firstChild, 1, spanInSecondDiv.firstChild, 30],
rect: spanInSecondDivRect,
rectList:[[spanInSecondDivRectList[0].left+widthPerchar,
spanInSecondDivRectList[0].right, spanInSecondDivRectList[0].top,
spanInSecondDivRectList[0].bottom, spanInSecondDivRectList[0].width - widthPerchar,
spanInSecondDivRectList[0].height],
spanInSecondDivRectList[1],
spanInSecondDivRectList[2],
spanInSecondDivRectList[3],
[spanInSecondDivRectList[4].left,
spanInSecondDivRectList[4].right - 4 * widthPerchar,
spanInSecondDivRectList[4].top,
spanInSecondDivRectList[4].bottom,
spanInSecondDivRectList[4].width - 4 * widthPerchar,
spanInSecondDivRectList[4].height]]},
{name:'textAcrossLines',range:[thirdDiv.firstChild, 13, thirdDiv.firstChild, 28],
rect: [spanInSecondDivRectList[2].left, spanInSecondDivRectList[2].right,
spanInSecondDivRectList[2].top + secondDivRect.height,
spanInSecondDivRectList[2].bottom + secondDivRect.height,
spanInSecondDivRectList[2].width, spanInSecondDivRectList[2].height],
rectList:[[spanInSecondDivRectList[2].left, spanInSecondDivRectList[2].right,
spanInSecondDivRectList[2].top + secondDivRect.height,
spanInSecondDivRectList[2].bottom + secondDivRect.height,
spanInSecondDivRectList[2].width, spanInSecondDivRectList[2].height],
[spanInSecondDivRectList[2].left, spanInSecondDivRectList[2].left,
spanInSecondDivRectList[2].top + secondDivRect.height,
spanInSecondDivRectList[2].bottom + secondDivRect.height,
0, spanInSecondDivRectList[2].height]]}
];
}
directionDependentTestcases.forEach(runATest);
}
function testMixedDir(){
var root = document.getElementById('mixeddir');
var firstSpan = root.firstElementChild, firstSpanRect=firstSpan.getBoundingClientRect(),
firstSpanRectList = firstSpan.getClientRects();
runATest({name:'mixeddir',range:[firstSpan.firstChild,0,firstSpan.lastChild,firstSpan.lastChild.length],
rect: firstSpanRect, rectList:firstSpanRectList});
root = document.getElementById('mixeddir2');
firstSpan = root.firstElementChild;
firstSpanRect = firstSpan.getBoundingClientRect();
bdo = document.getElementById('bdo2');
bdoRect=bdo.getBoundingClientRect();
var widthPerChar = bdoRect.width / bdo.firstChild.length;
runATest({name:'mixeddirPartial', range:[firstSpan.firstChild, 3,
bdo.firstChild, 7],
rect: [firstSpanRect.left + 3*widthPerChar, bdoRect.right,
bdoRect.top, bdoRect.bottom,
(firstSpan.firstChild.length + bdo.firstChild.length - 3) *
widthPerChar,
bdoRect.height],
rectList:[[firstSpanRect.left + 3*widthPerChar,
bdoRect.left,
firstSpanRect.top, firstSpanRect.bottom,
(firstSpan.firstChild.length - 3) * widthPerChar,
firstSpanRect.height],
[bdoRect.right - 7 * widthPerChar, bdoRect.right,
bdoRect.top, bdoRect.bottom,
7*widthPerChar, bdoRect.height]]});
}
function test(){
//test ltr
doTest();
testMixedDir();
isLTR = false;
var root = document.getElementById('content');
root.dir = 'rtl';
//test rtl
doTest();
testMixedDir();
SimpleTest.finish();
}
window.onload = function() {
SimpleTest.waitForExplicitFinish();
setTimeout(test, 0);
};
</script>
</pre>
</body>
</html>