Fix handling of null body2 text style for chip and slider#17311
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gspencergoog merged 1 commit intoflutter:masterfrom May 10, 2018
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Fix handling of null body2 text style for chip and slider#17311gspencergoog merged 1 commit intoflutter:masterfrom
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HansMuller
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Just a few requests to improve the docs
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Rather than reusing the theme var, maybe make it final and
return new Theme(
child: child,
data: theme.copyWith(
...
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Good idea. Done.
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I think it would help to qualify "incomplete", like: is incomplete because it only specifies one text style. Because it is incomplete, just replacing ...
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This statement isn't as helpful as it should be. Since we have both copyWith and merge, we should provide some rule of thumb here. The see also comment appears to be headed in the right direction...
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OK, I reworked those both into descriptive See Also entries.
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Same comment as the one about "Using [merge]"
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* master: Add a golden image test for centered text (flutter#17517) Gallery a11y fix: give the categories and demos pages "route" scope (flutter#17516) Stop Gallery the logo to back-button cross fade shaking (flutter#17513) Correct a typo in InputDecorator, affects computeMinIntrinsicHeight() (flutter#17512) don't fail a test when there are issues deleting a temp dir (flutter#17498) Roll engine to 9ae10ef (flutter#17503) Roll engine to b856303 (flutter#17499) Rebase after package:isolate fixes. (flutter#17289) Add more unit tests for AOT snapshotting (flutter#17493) Update a TODO with issue number (flutter#17494) Fix backdrop demo margin for iPhone X (flutter#17480) Post libtxt/post iOS 11 fidelity fine tuning (flutter#17366) Add onChangeStart and onChangeEnd to slider. (flutter#17298) Use deprecated I/O constants (flutter#17491) Augment `flutter screenshot` with all supported screenshot types (flutter#17478) Roll engine to fade83c (flutter#17488) Fix handling of null body2 text style for chip and slider (flutter#17311) Roll engine to 37e20af (flutter#17481) Mark test as flaky (flutter#17486)
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) Before this change, if you specified a non-null textTheme, but the theme you specified didn't have a body2 defined, then creating a ChipTheme would assert (which means creating a ThemeData would fail). This adds handling for this corner case to default to reasonable values in that case. The slider had the same problem, but for accentTextTheme, so I fixed that too. While I had the patient open, Hans and I noticed that TextTheme.merge wasn't doing the right thing in the case where some members were null either, so I fixed that, and added some examples, since merge/copyWith are common operations that are not always well understood. Fixes flutter#17251
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Before this change, if you specified a non-null
textTheme, but the theme you specified didn't have abody2defined, then creating aChipThemewould assert (which means creating aThemeDatawould fail).This adds handling for this corner case to default to reasonable values in that case. The slider had the same problem, but for
accentTextTheme, so I fixed that too.While I had the patient open, Hans and I noticed that TextTheme.merge wasn't doing the right thing in the case where some members were null either, so I fixed that, and added some examples, since merge/copyWith are common operations that are not always well understood.
Fixes #17251