css3/flexbox/preferred-widths.html

<!DOCTYPE html>
<html>
<style>
.flexbox {
    display: -webkit-flex;
    background-color: grey;
    float: left;
}
.flexbox > div {
    padding: 2px 13px 8px 17px;
    margin: 2px 13px 8px 17px;
}
.title {
    margin-top: 1em;
}
.overflowX {
    overflow-x: scroll;
    overflow-y: hidden;
}
.overflowY {
    overflow-x: hidden;
    overflow-y: scroll;
}
.auto {
    overflow: auto;
}
.horizontal-tb {
    -webkit-writing-mode: horizontal-tb;
}
.horizontal-bt {
    -webkit-writing-mode: horizontal-bt;
}
.vertical-rl {
    -webkit-writing-mode: vertical-rl;
}
.vertical-lr {
    -webkit-writing-mode: vertical-lr;
}
.row {
    -webkit-flex-flow: row;
}
.row-reverse {
    -webkit-flex-flow: row-reverse;
}
.column {
    -webkit-flex-flow: column;
}
.column-reverse {
    -webkit-flex-flow: column-reverse;
}
</style>
<script>
if (window.testRunner)
    testRunner.dumpAsText();
</script>
<script src="../../resources/check-layout.js"></script>
<body onload="checkLayout('.flexbox')">

<script>
var writingModes = ['horizontal-tb', 'horizontal-bt', 'vertical-lr', 'vertical-rl'];
var flexFlows = ['row', 'column', 'row-reverse', 'column-reverse'];
var scrollDirections = ['overflowY', 'overflowX'];

var dummyNode = document.createElement('div');
dummyNode.style.overflow = 'scroll';
document.body.appendChild(dummyNode);
var scrollbarWidth = dummyNode.offsetWidth - dummyNode.clientWidth;

writingModes.forEach(function(writingMode) {
    flexFlows.forEach(function(flexFlow) {
        scrollDirections.forEach(function(scrollDirection) {
            var flexboxClassName = writingMode + ' ' + scrollDirection + ' ' + flexFlow;

            var title = document.createElement('div');
            title.className = 'title';
            title.innerHTML = flexboxClassName;
            document.body.appendChild(title);

            var isColumn = flexFlow.indexOf('column') != -1;
            var isHorizontal = (writingMode.indexOf('horizontal') != -1) ? !isColumn : isColumn;

            var expectedWidth = isHorizontal ? 220 : 140;
            var expectedHeight = isHorizontal ? 60 : 110;
            if (scrollDirection == 'overflowY')
                expectedWidth += scrollbarWidth;
            if (scrollDirection == 'overflowX')
                expectedHeight += scrollbarWidth;


            var container = document.createElement('div');
            container.innerHTML = '<div class="flexbox ' + flexboxClassName + '" data-expected-width="' + expectedWidth + '" data-expected-height="' + expectedHeight + '">\n' +
                '<div style="background-color:pink; width: 20px; height: 30px;"></div>\n' +
                '<div style="background-color:red; width: 80px; height: 40px;"></div>\n' +
            '</div><div style="clear:both;"></div>';

            document.body.appendChild(container);
        })
    })
})
</script>
</body>
</html>