feat: support for ipywidgets 8

[mariobuikhuizen]

Code changes

• update dependencies to ipywidgets 8
• use renamed method and property

[github-actions]

👈 Launch a Binder on branch mariobuikhuizen/voila/feat_widgets_8_support

[ruomad]

Any news on this topic (ipywidgets 8.0.0b1 support) ?
I'm currently stuck with voila not displaying widgets, and ipywidgets-8 provides important new functionalities (resizing window, textcolor in buttons, etc...
Would be really nice to have voila work with this !

[martinRenou]

I believe we will not be making a Voila release compatible with ipywidgets 8 before it is actually out. Because it would make Voila dependent on ipywidgets 8, and we don't want that yet.

[jtpio]

Thanks @mariobuikhuizen for doing the update 👍

There is some overlap with #846 which also updates to ipywidgets 8. But it could be nice to do the update separately like in this PR so it could then be released in a 0.3.x.

[jtpio]

FYI @mariobuikhuizen I rebased this branch to fix the conflicts and updated to the latest (final) @jupyter-widgets packages.

This looks good locally:

[jtpio]

cc @maartenbreddels it would be great to have a release of ipyvolume with support for ipywidgets 8: widgetti/ipyvolume#411, thanks!

[github-actions]

Benchmark report

The execution time (in milliseconds) are grouped by test file, test type and browser.
For each case, the following values are computed: min <- [1st quartile - median - 3rd quartile] -> max.

Results table

Test file	voila-tree-classic.ipynb	voila-tree-light.ipynb	voila-tree-dark.ipynb	voila-tree-miami.ipynb	basics.ipynb	bqplot.ipynb	dashboard.ipynb	gridspecLayout.ipynb	interactive.ipynb	ipympl.ipynb	ipyvolume.ipynb	multiple_widgets.ipynb	query-strings.ipynb	reveal.ipynb
Render
chromium
actual	119 <- [139 - 170 - 223] -> 401	66 <- [70 - 77 - 92] -> 126	68 <- [72 - 82 - 88] -> 115	62 <- [64 - 70 - 82] -> 101	2263 <- [2313 - 2374 - 2461] -> 3347	2133 <- [2166 - 2255 - 2403] -> 2817	2303 <- [2364 - 2429 - 2439] -> 2704	2225 <- [2235 - 2281 - 2369] -> 2604	1717 <- [1739 - 1753 - 1825] -> 1894	3136 <- [3235 - 3387 - 3621] -> 4486	7819 <- [7826 - 7841 - 7845] -> 7896	5481 <- [5539 - 5583 - 5735] -> 6053	1046 <- [1114 - 1126 - 1128] -> 1160	3294 <- [3551 - 3984 - 5084] -> 8171
expected	3379 <- [3442 - 3517 - 3701] -> 3876	2976 <- [3227 - 3321 - 3421] -> 3604	3608 <- [3623 - 3709 - 3793] -> 3825	4453 <- [4453 - 4523 - 4661] -> 4748	2559 <- [2655 - 2656 - 2660] -> 2674	3982 <- [4079 - 4213 - 4356] -> 4743	12183 <- [18509 - 19553 - 20811] -> 21515	15319 <- [15660 - 15796 - 15912] -> 16056	1517 <- [1920 - 1997 - 2103] -> 2113

❗ Test metadata have changed

--- /dev/fd/63	2022-09-06 12:40:32.282740782 +0000
+++ /dev/fd/62	2022-09-06 12:40:32.282740782 +0000
@@ -4,37 +4,37 @@
     "BENCHMARK_REFERENCE": "actual"
   },
   "browsers": {
-    "chromium": "97.0.4666.0"
+    "chromium": "94.0.4595.0"
   },
   "systemInformation": {
     "cpu": {
-      "brand": "Xeon® Platinum 8370C",
+      "brand": "Xeon® E5-2673 v3",
       "cache": {
-        "l1d": 98304,
+        "l1d": 65536,
         "l1i": 65536,
-        "l2": 2097152,
-        "l3": 50331648
+        "l2": 524288,
+        "l3": 31457280
       },
       "cores": 2,
       "family": "6",
-      "flags": "fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ss ht syscall nx pdpe1gb rdtscp lm constant_tsc rep_good nopl xtopology cpuid pni pclmulqdq ssse3 fma cx16 pcid sse4_1 sse4_2 movbe popcnt aes xsave avx f16c rdrand hypervisor lahf_lm abm 3dnowprefetch invpcid_single pti fsgsbase bmi1 hle avx2 smep bmi2 erms invpcid rtm avx512f avx512dq rdseed adx smap clflushopt avx512cd avx512bw avx512vl xsaveopt xsavec xsaves md_clear",
+      "flags": "fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ss ht syscall nx pdpe1gb rdtscp lm constant_tsc rep_good nopl xtopology cpuid pni pclmulqdq ssse3 fma cx16 pcid sse4_1 sse4_2 movbe popcnt aes xsave avx f16c rdrand hypervisor lahf_lm abm invpcid_single pti fsgsbase bmi1 avx2 smep bmi2 erms invpcid xsaveopt md_clear",
       "governor": "",
       "manufacturer": "Intel®",
-      "model": "106",
+      "model": "63",
       "physicalCores": 2,
       "processors": 1,
       "revision": "",
       "socket": "",
-      "speed": 2.8,
+      "speed": 2.4,
       "speedMax": null,
       "speedMin": null,
-      "stepping": "6",
+      "stepping": "2",
       "vendor": "GenuineIntel",
       "virtualization": false,
       "voltage": ""
     },
     "mem": {
-      "total": 7281307648
+      "total": 7291699200
     },
     "osInfo": {
       "arch": "x64",
@@ -42,11 +42,11 @@
       "codename": "Focal Fossa",
       "codepage": "UTF-8",
       "distro": "Ubuntu",
-      "kernel": "5.15.0-1017-azure",
+      "kernel": "5.8.0-1040-azure",
       "logofile": "ubuntu",
       "platform": "linux",
-      "release": "20.04.4 LTS",
-      "serial": "1658ea69262c46798282e5c326bee33b",
+      "release": "20.04.3 LTS",
+      "serial": "cfc067bfcb844f35865e279a1b0e66c5",
       "servicepack": "",
       "uefi": false
     }

[martinRenou]

Thanks! Let's not wait for ipyvolume to get updated. We only depend on it for visual regression tests anyway.