1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
|
<!DOCTYPE html>
<link rel="author" title="David Grogan" href="mailto:dgrogan@chromium.org">
<link rel="help" href="https://drafts.csswg.org/css-flexbox/#intrinsic-sizes">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
<meta name="assert"
content="Requested use cases from our issue tracker that were duplicated or included in the bug report for the new algorithm. These are intentionally not very reduced from their original form with liberal pass conditions." />
<style>
section.bugreport {
outline: 1px solid grey;
margin-bottom: 25px;
padding: 3px;
}
#bug423112 .container {
border: 1px solid lightgrey;
margin: 20px;
padding: 8px;
display: flex;
flex-flow: column;
}
#bug423112 .h-box {
display: flex;
flex-flow: row;
flex: none;
justify-content: flex-start;
align-items: stretch;
}
#bug423112 .auto {
flex: 0 0 auto;
}
#bug423112 .none {
flex: none;
}
#bug423112 .gap1-fails {
flex: 0 0 5px;
}
#bug423112 .gap2-fails {
flex: 0 0 30px;
}
#bug423112 .word {
display: inline-block;
height: 10px;
width: 35px;
background: orange;
}
#bug464210 .FlexOuterContainer {
border: 3px solid black;
display: flex;
margin: 1em;
}
#bug464210 .FlexInnerContainer {
border: 3px solid red;
display: flex;
flex: 0 0 auto;
}
#bug464210 .FlexItem {
background: rgba(0, 0, 0, .2);
flex: 0 0 100px;
}
#bug533627c3 .outer {
display: flex;
padding: 10px;
}
#bug533627c3 .middle,
#bug533627c3 .middle2 {
display: flex;
flex-shrink: 0;
background: red;
padding: 10px;
}
#bug533627c3 .inner {
flex-basis: 258px;
flex-shrink: 0;
display: flex;
flex-grow: 0;
background: green;
}
#bug533627c3 .inner2 {
width: 258px;
flex-shrink: 0;
display: flex;
flex-grow: 0;
background: green;
}
#bug441768 div {
display: flex;
}
#bug1144312 .grid-y {
flex-direction: column;
flex-wrap: wrap;
}
#bug1144312 .grid-x {
flex-direction: row
}
#bug1144312 .grid-x>* {
flex-basis: 0
}
#bug1144312 [class*=grid] {
display: flex;
gap: 1px
}
#bug1144312 .grid-y {
background: lightblue
}
#bug1144312 .grid-y:not(:first-child) {
margin-top: 1.5rem
}
#bug1144312 [class*=grid]>* {
flex-grow: 1;
border: 3px solid blue;
padding: 1px;
}
#bug1144312 .nowrap div {
border-color: purple
}
#bug1144312 .nowrap {
background: Thistle;
flex-wrap: nowrap;
}
#bug1144312 div {
font: 12px/1 Ahem;
}
</style>
<section id="bug423112" class="bugreport">
<p>https://bugs.chromium.org/p/chromium/issues/detail?id=423112</p>
<div class="container">
<div class="h-box">
<div class="h-box">
<input type="checkbox" class="none">
<div class="gap2-fails"></div>
<span class="none" id="left-item">
first checkbox example
</span>
</div>
<div class="h-box">
<input type="checkbox" class="none" id="right-item">
<div class="gap2-fails"></div>
<span class="auto">
second checkbox example
</span>
</div>
</div>
</div>
</section>
<section id="bug464210" class="bugreport">
<p>https://bugs.chromium.org/p/chromium/issues/detail?id=464210</p>
<div class="FlexOuterContainer">
<div class="FlexInnerContainer">
<div class="FlexItem">MMMMM</div>
<div id="right-item" class="FlexItem">MMMMM</div>
</div>
</div>
</section>
<section id="bug533627c3" class="bugreport">
<p>https://bugs.chromium.org/p/chromium/issues/detail?id=533627#c3</p>
<div class="outer">
<div class="middle">
<div class="inner">
hello
</div>
</div>
</div>
<div class="outer">
<div class="middle2">
<div class="inner2">
hello
</div>
</div>
</div>
</section>
<section id="bug441768" class="bugreport">
<p>https://bugs.chromium.org/p/chromium/issues/detail?id=441768 author wants
below blue block to have 0 width</p>
<div>
<!-- shipping: .middle has flex-basis=200px (from its max-content), and
used min-width=200px (from min-content) -->
<!-- author wants .middle flex-basis = 0, so author wants .middle
max-content = 0 -->
<!-- that means author also needs min-content = 0 -->
<!-- so width:200 item needs to contribute flex-basis to both min and max
-->
<div style="height: 100px; background: blue; align-self: flex-start;"
class="middle">
<div style="width: 200px; flex: 0;"></div>
</div>
</div>
</section>
<section id="bug1144312" class="bugreport">
<p>https://bugs.chromium.org/p/chromium/issues/detail?id=1144312</p>
<!-- This case needs max-content to use flex fractions. -->
<div class="grid-y" id="top">
<!-- broke: grid-x intrinsic sizes are ("95", "154") -->
<!-- works: grid-x intrinsic sizes are ("165", "283") -->
<!-- broke: grid-x main inner size = 146-->
<!-- works: grid-x main inner size = 275-->
<!-- to determine its vertical flex basis, grid-x lays out with width set to max content*. Then, both of its items have flex basis 0 and same grow factor, so they get flexed to each have approximately half of first item's max-width. This makes "phantom whitespace" wrap, which makes it too tall.
* this doesn't happen in the nowrap case, which stretches grid-x's width. -->
<div class="grid-x">
<!-- while laying out grid-x to get its flex-basis:
when laying out the two items for cross sizes:
broke: 1st gets 78px fixed inline size, returns height 48px
works: 1st gets 137px fixed inline size, returns height 28px
broke: 2nd gets 67px fixed inline size, returns height 8px
works: 2nd gets 137px fixed inline size, returns height 8px
-->
<div>phantom whitespace</div>
<div></div>
</div>
</div>
<div class="grid-y" id="middle">
<div>
<div class="grid-x">
<div>also phantom whitespace</div>
<div></div>
</div>
</div>
</div>
<div class="grid-y nowrap" id="bottom">
<div class="grid-x">
<div>no more phantom whitespace</div>
<div></div>
</div>
</div>
</section>
<section id="bug1154243" class="bugreport">
<p>https://bugs.chromium.org/p/chromium/issues/detail?id=1154243</p>
<div
style="display: flex; width: min-content; border: 2px solid blue; font: 12px/1 Ahem;"
id="container">
<!-- shipping: min-content width of container is sum of min-contents (2x
the width of the word "content")
author needs: each `flex: 0 0 auto` item contributes flex-basis to
container min-content because they can't shrink from their flex bases
-->
<div style="flex-shrink: 0">Test content</div>
<div style="background: yellow; flex-shrink: 0" id="right">Test content
</div>
</div>
</section>
<script>
test(_ => {
let left = bug423112.querySelector("#left-item");
let right = bug423112.querySelector("#right-item");
assert_less_than_equal(left.getBoundingClientRect().right, right.getBoundingClientRect().left);
}, "left < right");
test(_ => {
const container = bug464210.querySelector(".FlexInnerContainer");
const right = bug464210.querySelector("#right-item");
assert_less_than_equal(right.getBoundingClientRect().right, container.getBoundingClientRect().right);
}, "no overflow");
test(_ => {
const middle = bug533627c3.querySelector(".middle");
const middle2 = bug533627c3.querySelector(".middle2");
assert_equals(middle.offsetWidth, middle2.offsetWidth);
}, "same widths");
test(_ => {
const middle = bug441768.querySelector(".middle");
assert_equals(middle.offsetWidth, 0);
}, "zero width");
test(_ => {
const top = bug1144312.querySelector("#top");
const middle = bug1144312.querySelector("#middle");
const bottom = bug1144312.querySelector("#bottom");
assert_equals(top.offsetHeight, bottom.offsetHeight);
assert_equals(middle.offsetHeight, bottom.offsetHeight);
}, "same heights");
test(_ => {
const container = bug1154243.querySelector("#container");
const right = bug1154243.querySelector("#right");
assert_less_than_equal(right.getBoundingClientRect().right, container.getBoundingClientRect().right)
}, "no overflow 2");
</script>
|
