feat: Theming - Bootstrap #1603
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## main #1603 +/- ##
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+ Coverage 46.62% 46.71% +0.09%
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Files 602 606 +4
Lines 36726 36769 +43
Branches 9208 9231 +23
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+ Hits 17122 17176 +54
+ Misses 19552 19541 -11
Partials 52 52
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bmingles
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Two things I noticed while testing:
- The animation on login screen (
RandomAreaPlotAnimation) doesn't display anymore, it's just a black screen. - The first time I ran this, the loading circle was black... I think because I switched from
mainto this branch? Can't seem to reproduce it with an incognito window or by re-opening the same thing, so probably not a big deal but thought I'd mention it.
packages/components/src/theme/theme-dark/theme-dark-components.css
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For the most part good, just the 404 link to bootstrap.scss and some minor cleanup suggestions to take a look at. |
| | '--dh-color-login-form-bg' | ||
| | '--dh-color-login-status-message' | ||
| | '--dh-color-random-area-plot-animation-fg-fill' | ||
| | '--dh-color-random-area-plot-animation-fg-stroke' | ||
| | '--dh-color-random-area-plot-animation-bg' | ||
| | '--dh-color-random-area-plot-animation-grid' |
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This smells to me. ThemeModel to me shouldn't have any specific things for login or random-area-plot-animation in my mind; rather login/random area plot should be pulling from generic values; e.g. instead of login-form-bg, should just be form-bg and that's what we use for all forms; login-status-message should just be status-message; random-area-plot-animation-fg-fill should just be using accent-bg, etc. Just seems like we're not doing the right abstraction here.
Then getRandomAreaPlotAnimationThemeColors() would be a utility method within the RandomPlotAnimation rather than from the ThemeModel itself, which should just provide the generic colors.
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Sounds like @dsmmcken is saying the form colors should be specific to the form, so the issue here may be that the ThemeModel should not be responsible to specify these. I think these may not actually be required in the preload in DHC at all but will be needed for DHE, so I probably need to augment the preload to allow the app to specify additional vars. Then ThemeModel won't have to own these.
The other suggestions make sense. I'll change those as well.
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This turned out to be more involved than I want to include in this PR. I created #1679 to address it.
| const [themeColors, setThemeColors] = useState<ThemeColors | null>(null); | ||
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| useEffect(() => { | ||
| setThemeColors(getRandomAreaPlotAnimationThemeColors()); | ||
| }, [activeThemes]); |
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Should just memoize themeColors, then you don't need checks for null on themeColors, e.g.:
const themeColors = useMemo(getRandomAreaPlotAnimationThemeColors, [
activeThemes,
]);
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Most of the places that depend on resolving css vars need to go in an effect so that the latest data is available to the DOM right after a theme selection change.
I'm not 100% sure, but I believe this happens because ThemeProvider renders style tags dynamically which would be in the same render as when useMemo gets calculated vs useEffect would fire after the DOM has actually updated the colors that are needed for the resolve.
For this particular example, it's easiest to see in the styleguide. When I tried useMemo and change the theme, the change trails behind till the next render
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I added a clarifying comment to the effect
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Okay - as we discussed in our meeting it would be nice if we pulled this logic up to the ThemeProvider so we don't need to do this pattern in so many places (here, ChartThemeProvider, IrisGridThemeProvider, etc).
So in ThemeProvider, the value it provides to the ThemeContext.Provider is only set after a useLayoutEffect occurs in the ThemeProvider. Then any child can just do useActiveThemes (or maybe a useThemeColors type of hook?) and just get the active colours without needed to add their own useLayoutEffect
Can be a follow up ticket.
BREAKING CHANGE: Bootstrap color variables are now predominantly hsl based. SCSS will need to be updated accordingly. Theme providers are needed to load themes.