Team members on Windows were having trouble running tests inside of
Docker. Given that headed tests must use WSL, I think it makes sense to
have Windows devs use WSL for any E2E tests run inside of Docker. That
way they aren't switching back and forth between shells.
This PR clarifies the Docker docs that instruct devs on how to use WSL.
As part of the Vercel flow for creating public previews of the test
files, we'd like to exclude screenshots from being downloaded as they
are not required to create the previews.
Issue number: resolves#24583
---------
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issue. -->
<!-- Please try to limit your pull request to one type (bugfix, feature,
etc). Submit multiple pull requests if needed. -->
## What is the current behavior?
<!-- Please describe the current behavior that you are modifying. -->
See
https://github.com/ionic-team/ionic-framework/issues/24583#issuecomment-2033478601
## What is the new behavior?
<!-- Please describe the behavior or changes that are being added by
this PR. -->
- See https://github.com/ionic-team/ionic-framework/pull/29260 and
https://github.com/ionic-team/ionic-framework/pull/29259. This PR is a
combination of previously reviewed fixes.
## Does this introduce a breaking change?
- [ ] Yes
- [x] No
<!--
If this introduces a breaking change:
1. Describe the impact and migration path for existing applications
below.
2. Update the BREAKING.md file with the breaking change.
3. Add "BREAKING CHANGE: [...]" to the commit description when merging.
See
https://github.com/ionic-team/ionic-framework/blob/main/docs/CONTRIBUTING.md#footer
for more information.
-->
## Other information
<!-- Any other information that is important to this PR such as
screenshots of how the component looks before and after the change. -->
Dev build: `7.8.3-dev.11712695191.1d7ec370`
Discussed with Sean and most of these codeowner directories should be
reviewable by anyone on the team, so we don't want to block on a
specific person.
The exceptions are the gesture/input-shim directories due to the lack of
documentation at the moment.
Start your review here 👉
[docs/README.md](https://github.com/ionic-team/ionic-framework/blob/FW-6107/docs/README.md)
## What is the current behavior?
Documentation files with information on how to contribute, component
implementations, testing, etc. are scattered throughout various folders
in this repository.
## What is the new behavior?
Consolidates the documentation files into a root `docs/` directory for
easier discovery and organization.
`/docs` tree:
```
├── _config.yml
├── component-guide.md
├── CONTRIBUTING.md
├── README.md
├── sass-guidelines.md
├── angular
│ ├── README.md
│ └── testing.md
├── core
│ ├── README.md
│ └── testing
│ ├── README.md
│ ├── api.md
│ ├── best-practices.md
│ ├── preview-changes.md
│ └── usage-instructions.md
├── react
│ ├── README.md
│ └── testing.md
├── react-router
│ ├── README.md
│ └── testing.md
├── vue
│ ├── README.md
│ └── testing.md
└── vue-router
├── README.md
└── testing.md
```
**Migrates the following:**
| Previous Location | New Location |
| ----------------------------------------------------------- |
----------------------------------------- |
| `.github/COMPONENT-GUIDE.md` | `docs/component-guide.md` |
| `.github/CONTRIBUTING.md` | `docs/CONTRIBUTING.md` |
| `core/scripts/README.md` | `docs/core/testing/preview-changes.md` |
| `core/src/utils/test/playwright/docs/api.md` |
`docs/core/testing/api.md` |
| `core/src/utils/test/playwright/docs/best-practices.md` |
`docs/core/testing/best-practices.md` |
| `core/src/utils/test/playwright/docs/README.md` |
`docs/core/testing/README.md` |
| `core/src/utils/test/playwright/docs/usage-instructions.md` |
`docs/core/testing/usage-instructions.md` |
| `packages/angular/test/README.md` | `docs/angular/testing.md` |
| `packages/react-router/test/README.md` |
`docs/react-router/testing.md` |
| `packages/react/test/README.md` | `docs/react/testing.md` |
| `packages/react/test/base/README.md` | `docs/react/testing.md` |
| `packages/vue/test/README.md` | `docs/vue/testing.md` |
**Adds the following:**
| File | Description |
| ----------------------------- |
-----------------------------------------------------------------------
|
| `docs/sass-guidelines.md` | Sass Variable guidelines taken from
`ionic-framework-design-documents` |
| `docs/README.md` | Entry file that should link to all other files |
| `docs/_config.yml` | Config file for use with GitHub pages |
| `docs/core/README.md` | Description of core, links to contributing and
testing |
| `docs/angular/README.md` | Description of angular, links to
contributing and testing |
| `docs/react/README.md` | Description of react, links to contributing
and testing |
| `docs/react-router/README.md` | Description of react-router, links to
contributing and testing |
| `docs/vue/README.md` | Description of vue, links to contributing and
testing |
| `docs/vue-router/README.md` | Description of vue-router, links to
contributing and testing |
| `docs/vue-router/testing.md` | Testing file for vue-router, populated
from vue-router's main README |
**Does not** add any files for `angular-server`. This is because the
README is essentially empty and there is no testing in that directory. I
can add blank files if we want to have something to add to later.
**Does not** migrate the content of the packages' root `README.md`
files. These files are used for their npm package descriptions so we
should not edit them.
## Hosting Documentation
We can (and should) host these files using GitHub Pages. I have
duplicated them in a personal repository to see how this would look:
[docs-consolidation](https://brandyscarney.github.io/docs-consolidation/).
Doing so will require some formatting fixes (see [Sass
Guidelines](https://brandyscarney.github.io/docs-consolidation/sass-guidelines.html#-reusable-values))
so I did not publish them now but we can easily enable GitHub pages by
toggling a setting in this repository.
## Other information
- Verify that no documentation files were missed in the migration
- You can use these commands to search for `*.md` files in a directory:
- `find core/src -type f -name "*.md" -print`
- `find packages/angular -type f -name "*.md" -not -path
"**/node_modules/*" -print`
- I did add some redirect links in some of the existing markdown files
so they might still exist for that reason
- We should probably break up the contributing + component guide
documentation into smaller files, such as including best practices, but
I wanted to get everything in the same place first
- The contributing has sections on each of the packages that we could
move to that package's docs folder:
https://github.com/ionic-team/ionic-framework/blob/main/.github/CONTRIBUTING.md#core
---------
Co-authored-by: Maria Hutt <thetaPC@users.noreply.github.com>
Issue number: N/A
---------
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issue. -->
<!-- Please try to limit your pull request to one type (bugfix, feature,
etc). Submit multiple pull requests if needed. -->
## What is the current behavior?
<!-- Please describe the current behavior that you are modifying. -->
Ionic Framework developers make extensive use of multi-line comments in
the Sass files. However these comments are not stripped from the
generated output.
This leads to a significant increase to the file size of CSS and can
have an impact on runtime performance.
For example: https://cdn.jsdelivr.net/npm/@ionic/core/css/core.css has
183 lines of comment blocks before a single line of CSS.
## What is the new behavior?
<!-- Please describe the behavior or changes that are being added by
this PR. -->
- Compresses the generated output from Sass → CSS to strip out
multi-line comment blocks.
- Developers can use [loud
comments](https://sass-lang.com/documentation/syntax/comments/) if they
want to include comments in the generated output.
- In the case of just the core.css file, the file size goes from 20kb to
10kb.
- The entire CSS global styles goes from 758 KB to 606kb.
## Does this introduce a breaking change?
- [ ] Yes
- [x] No
<!--
If this introduces a breaking change:
1. Describe the impact and migration path for existing applications
below.
2. Update the BREAKING.md file with the breaking change.
3. Add "BREAKING CHANGE: [...]" to the commit description when merging.
See
https://github.com/ionic-team/ionic-framework/blob/main/.github/CONTRIBUTING.md#footer
for more information.
-->
## Other information
<!-- Any other information that is important to this PR such as
screenshots of how the component looks before and after the change. -->
Dev-build: `7.8.4-dev.11712251308.1da8aede`
Issue number: N/A
---------
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issue. -->
<!-- Please try to limit your pull request to one type (bugfix, feature,
etc). Submit multiple pull requests if needed. -->
## What is the current behavior?
<!-- Please describe the current behavior that you are modifying. -->
Developers on a Windows environment using VS Code will experience an
issue when using prettier, where files will be tracked as modified even
though they have no actual diffs.
This is due to differences in how Unix based operating systems and
Windows treat carriage returns.
## What is the new behavior?
<!-- Please describe the behavior or changes that are being added by
this PR. -->
- Updates the contributing guide to educate developers using VS Code on
how to configure their local environment to not track additional diffs
when formatting the codebase.
## Does this introduce a breaking change?
- [ ] Yes
- [x] No
<!--
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1. Describe the impact and migration path for existing applications
below.
2. Update the BREAKING.md file with the breaking change.
3. Add "BREAKING CHANGE: [...]" to the commit description when merging.
See
https://github.com/ionic-team/ionic-framework/blob/main/.github/CONTRIBUTING.md#footer
for more information.
-->
## Other information
<!-- Any other information that is important to this PR such as
screenshots of how the component looks before and after the change. -->
This is the same documentation that exists on the ionic-docs repository
for the same reason. I've applied co-authored-by credit to Netkow for
his wonderful contribution to that documentation.
Co-authored-by: Matt Netkow <matt.netkow@gmail.com>
Move the `docs/` directory into the `packages/` directory. This will
enable us to create a top level `docs/` folder for onboarding and
contributing guidelines. It will also be necessary when migrating to
pnpm.
---------
Co-authored-by: Liam DeBeasi <liamdebeasi@users.noreply.github.com>
Issue number: N/A
---------
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issue. -->
<!-- Please try to limit your pull request to one type (bugfix, feature,
etc). Submit multiple pull requests if needed. -->
## What is the current behavior?
<!-- Please describe the current behavior that you are modifying. -->
When using an outline-style button in a toolbar on `md` dark mode, the
activated style causes the button to become invisible.
Steps to repro in `main`:
1. Update the `css-variables` themes test to use the latest dark theme
styles (at least for v7) by replacing the contents of [this
file](https://github.com/ionic-team/ionic-framework/blob/main/core/src/themes/test/css-variables/css/dark.css)
with the [styles from the
docs](https://ionicframework.com/docs/theming/dark-mode#ionic-dark-theme).
2. Host the project locally and navigate to the test at
`themes/test/css-variables/index.html`.
3. Switch to dark mode within the page. Note that the activated outline
button isn't visible:
## What is the new behavior?
<!-- Please describe the behavior or changes that are being added by
this PR. -->
- Button styles corrected. The colors were correct for `ios` mode, but
had to be flipped for `md`, so I pulled the relevant styles into the
mode-specific stylesheets.
- CSS variables test has also been updated to use the same dark mode CSS
as in [the
docs](https://ionicframework.com/docs/theming/dark-mode#ionic-dark-theme),
as per the repro steps above. Let me know if you would rather this be
split into a separate PR.
Changes to the toolbar test were split into a separate PR to keep this
one clean and ensure the screenshot changes can be reviewed more
effectively: https://github.com/ionic-team/ionic-framework/pull/29231
## Does this introduce a breaking change?
- [ ] Yes
- [x] No
<!--
If this introduces a breaking change:
1. Describe the impact and migration path for existing applications
below.
5. Update the BREAKING.md file with the breaking change.
6. Add "BREAKING CHANGE: [...]" to the commit description when merging.
See
https://github.com/ionic-team/ionic-framework/blob/main/.github/CONTRIBUTING.md#footer
for more information.
-->
## Other information
<!-- Any other information that is important to this PR such as
screenshots of how the component looks before and after the change. -->
---------
Co-authored-by: ionitron <hi@ionicframework.com>
I'm removing myself from code owners in several places in favor of the
auto-assignment. However, I did keep my name on areas of the code that I
felt are still higher risk for potential regressions due to the nature
of how the code is built/tested.
Remove myself as the codeowner of specific directories as this bypasses
the random review assignment and automatically assigns me to any PRs
changing these files.
Issue number: resolves#29211
---------
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issue. -->
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etc). Submit multiple pull requests if needed. -->
## What is the current behavior?
<!-- Please describe the current behavior that you are modifying. -->
In https://github.com/ionic-team/ionic-framework/pull/28861 I fixed a
bug that caused `.popover-viewport` to have `overflow: hidden`. In
reality, this code should have always applied but due to an incorrect
selector it never did.
As it turns out in
https://github.com/ionic-team/ionic-framework/issues/29211, some
developers were relying on the broken behavior to build their
applications. In particular, developers were using `ion-popover` without
an `ion-content`. The linked change made it so that using popovers
without `ion-content` were not scrollable.
After talking with @mapsandapps we think it makes sense to officially
support this behavior. We support using [modals without
`ion-content`](https://ionicframework.com/docs/api/modal#custom-dialogs),
and we could not think of a reason to not support the same use case for
popover.
## What is the new behavior?
<!-- Please describe the behavior or changes that are being added by
this PR. -->
- If the `.popover-viewport` element has a child content then
`.popover-viewport `will not be scrollable.
- If the `.popover-viewport` element does not have a child content then
`.popover-viewport` will be scrollable.
I implemented this behavior using progressive enhancement via `:has`.
The [`:has` pseudo-class](https://caniuse.com/?search=%3Ahas) has
cross-browser support. Ionic v7 supports some versions of browsers that
do not have `:has` support. As a result, we fall back to the existing
behavior in this environment. Developers are able to get this behavior
on older browsers by explicitly setting `overflow: auto` on
`.popover-viewport`.
Fortunately, we will be dropping support for several of the older
browsers versions in Ionic v8, so the need to do the manual opt-in
should be less frequent as time goes on.
## Does this introduce a breaking change?
- [ ] Yes
- [x] No
<!--
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1. Describe the impact and migration path for existing applications
below.
2. Update the BREAKING.md file with the breaking change.
3. Add "BREAKING CHANGE: [...]" to the commit description when merging.
See
https://github.com/ionic-team/ionic-framework/blob/main/.github/CONTRIBUTING.md#footer
for more information.
-->
## Other information
<!-- Any other information that is important to this PR such as
screenshots of how the component looks before and after the change. -->
Dev build: `7.8.2-dev.11711383079.118d48a5`
Testing:
1. Open https://codepen.io/liamdebeasi/pen/JjVJrZQ?editors=1100 (this
has a dev build installed)
2. Click each button to open a popover.
3. Verify that each popover can be scrolled.
I could not find a great way to automate this test, but let me know if
anyone has ideas!
Issue number: N/A
---------
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issue. -->
<!-- Please try to limit your pull request to one type (bugfix, feature,
etc). Submit multiple pull requests if needed. -->
## What is the current behavior?
<!-- Please describe the current behavior that you are modifying. -->
The toolbar `basic` test only checks light theme. Dark theme coverage is
required to test against the bug fixed in
https://github.com/ionic-team/ionic-framework/pull/29216.
## What is the new behavior?
<!-- Please describe the behavior or changes that are being added by
this PR. -->
Dark theme coverage added. This required converting the test to
`page.setContent` instead of `page.goto`, so I went ahead and split the
captured toolbars into multiple tests, including some cleanup of the
test content. Since this included changes across many different tests,
even ones not strictly related to the bug, this work has been split into
a separate PR.
## Does this introduce a breaking change?
- [ ] Yes
- [x] No
<!--
If this introduces a breaking change:
1. Describe the impact and migration path for existing applications
below.
2. Update the BREAKING.md file with the breaking change.
3. Add "BREAKING CHANGE: [...]" to the commit description when merging.
See
https://github.com/ionic-team/ionic-framework/blob/main/.github/CONTRIBUTING.md#footer
for more information.
-->
## Other information
<!-- Any other information that is important to this PR such as
screenshots of how the component looks before and after the change. -->
---------
Co-authored-by: ionitron <hi@ionicframework.com>
Issue number: resolves#29193
---------
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issue. -->
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etc). Submit multiple pull requests if needed. -->
## What is the current behavior?
<!-- Please describe the current behavior that you are modifying. -->
In an attempt to preserve backwards compatibility when adding
`autocapitalize` to Searchbar, we used `!` to indicate that the prop was
never undefined. The `autocapitalize` on `HTMLElement` expects this
value to be a string and never undefined.
For the purposes of the property on Searchbar, setting this prop to one
of the accepted values would constitute a breaking change because it
would override the default browser behavior (which we previously relied
upon). As a result, we used `!` to not set a default prop but inform
TypeScript that this prop is always defined. This unintentionally made
it so developers needed to define the `autocapitalize` property every
time which is not what we want.
## What is the new behavior?
<!-- Please describe the behavior or changes that are being added by
this PR. -->
- `autocapitalize` now defaults to the `'default'` keyword. This is an
internal keyword that is used to tell Ionic to **not** set the
`autocapitalize` attribute on the inner `input` element and instead rely
on the default browser behavior. This satisfies the `HTMLElement`
requirement that `autocapitalize` is never undefined. In Ionic 8 this
`'default'` value will be replaced with `'off'`.
[Typescript currently sets the `HTMLElement` `autocapitalize` type to
`string`](65812bf3ec/src/lib/dom.generated.d.ts (L10087))
which is why we can add a `'default'` keyword here. There is some risk
that if these type definitions change in the future that applications
may encounter errors. However, changing this on the TypeScript side
would itself be a breaking change. Additionally, we are moving away from
`'default'` in Ionic 8, so I think this is an acceptable amount of risk.
## Does this introduce a breaking change?
- [ ] Yes
- [x] No
<!--
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1. Describe the impact and migration path for existing applications
below.
2. Update the BREAKING.md file with the breaking change.
3. Add "BREAKING CHANGE: [...]" to the commit description when merging.
See
https://github.com/ionic-team/ionic-framework/blob/main/.github/CONTRIBUTING.md#footer
for more information.
-->
## Other information
<!-- Any other information that is important to this PR such as
screenshots of how the component looks before and after the change. -->
Dev build: `7.8.2-dev.11711027016.13b2a920`
Tested in a React starter app with Searchbar, and I verified this fix
works.
Issue number: N/A
---------
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issue. -->
<!-- Please try to limit your pull request to one type (bugfix, feature,
etc). Submit multiple pull requests if needed. -->
## What is the current behavior?
<!-- Please describe the current behavior that you are modifying. -->
GitHub actions allow screenshots to be updated either by updating all
the components or providing a component name.
If a component name is given, then the screenshots will only be updated
on `src/components/{component-name}`. This isn't ideal when wanting to
update a specific path.
## What is the new behavior?
<!-- Please describe the behavior or changes that are being added by
this PR. -->
- The script no longer strips out `ion-`. The developer needs to submit
a valid component name or valid path.
- The script no longer appends the value to `src/components/`
- The script will run all instances of a component if only the name is
given
- The script will run tests within a given path
## Does this introduce a breaking change?
- [ ] Yes
- [x] No
<!--
If this introduces a breaking change:
1. Describe the impact and migration path for existing applications
below.
2. Update the BREAKING.md file with the breaking change.
3. Add "BREAKING CHANGE: [...]" to the commit description when merging.
See
https://github.com/ionic-team/ionic-framework/blob/main/.github/CONTRIBUTING.md#footer
for more information.
-->
## Other information
<!-- Any other information that is important to this PR such as
screenshots of how the component looks before and after the change. -->
How to test:
1. Create a new branch based off this one
2. Make a style change
3. Push it to the new branch
4. Update the reference images using the new branch
5. This will show you all the options
Recommended to test:
- a component name (`chip`)
- a path (`src/components/chip/test/a11y`)
- a component that doesn't exist (`random-component`)
- no provided component, leave the first input blank
Issue number: Internal
---------
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issue. -->
<!-- Please try to limit your pull request to one type (bugfix, feature,
etc). Submit multiple pull requests if needed. -->
## What is the current behavior?
<!-- Please describe the current behavior that you are modifying. -->
The team currently faces two challenges:
1. Verifying visual changes locally is difficult because we cannot use
the existing ground truths as they were generated in Linux environments
and most of our team uses either macOS or Windows. While team members
can generate ground truths in the correct environment, they need to
remember to do that first before making changes.
2. Updating visual diffs is time consuming and can only be done by team
members. Our GitHub Action runs the entire test suite which can take ~10
even if only a handful of screenshots are generated. Additionally, this
job can only be run by team members meaning community contributors
cannot update/add screenshots. This limits them to non-visual tasks when
contributing. In the event that they do want to make visual changes, the
team needs to copy all their code into a branch and manually run
screenshot diffs for them.
## What is the new behavior?
<!-- Please describe the behavior or changes that are being added by
this PR. -->
- This PR introduces the ability to run all Playwright tests inside of a
Docker container using an image with Playwright dependencies. The
container will have access to the local project, so developers can make
changes and then run tests in the container after the changes are
compiled. This enables anyone to propose new screenshot changes.
However, the "update screenshot" job will still be available for folks
who do not want/are unable to use docker.
- There are some typeface differences between GH Actions and the Docker
image which is why there are a handful of screenshots that needed to be
updated.
One risk here is that the Playwright npm and Docker image versions must
be kept in sync. As a result, I also updatRenovate to allow us to auto
update the npm and Docker image versions at the same time.
## Does this introduce a breaking change?
- [ ] Yes
- [x] No
<!--
If this introduces a breaking change:
1. Describe the impact and migration path for existing applications
below.
3. Update the BREAKING.md file with the breaking change.
4. Add "BREAKING CHANGE: [...]" to the commit description when merging.
See
https://github.com/ionic-team/ionic-framework/blob/main/.github/CONTRIBUTING.md#footer
for more information.
-->
## Other information
<!-- Any other information that is important to this PR such as
screenshots of how the component looks before and after the change. -->
⚠️ There are still some issues I need to sort out with mounting the
local project on Windows. However, using Ubuntu with the linux subsystem
for windows can be used as a workaround. I'd like to merge this so we
can start testing it in our day-to-day workflow and ironing out any
bugs.
---------
Co-authored-by: ionitron <hi@ionicframework.com>
Updates the component guide to use the proper order for the `focused`,
`hover`, and `activated` states. Reorders the sections based on the
recommended order and adds emphasis and blockquotes to call out the
order.
I have created ticket
[FW-6039](https://outsystemsrd.atlassian.net/browse/FW-6039) for
investigating components that don't follow the recommended order here.
---------
Co-authored-by: Sean Perkins <13732623+sean-perkins@users.noreply.github.com>
Issue number: resolves#24542
---------
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issue. -->
<!-- Please try to limit your pull request to one type (bugfix, feature,
etc). Submit multiple pull requests if needed. -->
## What is the current behavior?
<!-- Please describe the current behavior that you are modifying. -->
WebKit has a quirk where IntersectionObserver callbacks are delayed
until after an accelerated animation finishes if the "root" specified in
the config is the browser viewport (the default behavior if "root" is
not specified) This means that when presenting a datetime in a modal on
iOS the calendar body appears blank until the modal animation finishes.
## What is the new behavior?
<!-- Please describe the behavior or changes that are being added by
this PR. -->
- We can work around this issue by observing an element inside of the
datetime component and using the datetime component itself as the root.
To do this, I added an `.intersection-tracker` element inside of
datetime. This element has a dimension of 0x0 so it should not affect
component layout or functionality.
I opted to add this element instead of re-using an existing element
because the existing elements are not guaranteed to always be in the DOM
due to different datetime presentation styles.
| `main` | branch |
| - | - |
| <video
src="https://github.com/ionic-team/ionic-framework/assets/2721089/e84d111d-b156-4f45-887a-d68a1097e5dd"></video>
| <video
src="https://github.com/ionic-team/ionic-framework/assets/2721089/3dccf1e5-cf79-46ab-b542-0537fd46fa76"></video>
|
## Does this introduce a breaking change?
- [ ] Yes
- [x] No
<!--
If this introduces a breaking change:
1. Describe the impact and migration path for existing applications
below.
2. Update the BREAKING.md file with the breaking change.
3. Add "BREAKING CHANGE: [...]" to the commit description when merging.
See
https://github.com/ionic-team/ionic-framework/blob/main/.github/CONTRIBUTING.md#footer
for more information.
-->
## Other information
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Dev build: `7.8.1-dev.11710449785.14ebd5a0`
---------
Co-authored-by: Amanda Johnston <90629384+amandaejohnston@users.noreply.github.com>
Issue number: resolves#28867
---------
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issue. -->
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## What is the current behavior?
<!-- Please describe the current behavior that you are modifying. -->
I missed an edge case in
https://github.com/ionic-team/ionic-framework/pull/28277 that caused an
MD headers in an MD app to be hidden due to the presence of an iOS
header (via `mode="ios"`). This was happening because I forgot to scope
the selector in `header.ios.scss` to only iOS headers.
## What is the new behavior?
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this PR. -->
- The headers in the relevant selector are now scoped to the iOS headers
which avoids this bug while preserving the anti-flicker mechanism added
in the linked PR.
## Does this introduce a breaking change?
- [ ] Yes
- [x] No
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## Other information
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Dev build: `7.8.1-dev.11710452743.1ca99e5e`
---------
Co-authored-by: ionitron <hi@ionicframework.com>
Issue number: Internal
---------
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## What is the current behavior?
<!-- Please describe the current behavior that you are modifying. -->
In https://github.com/ionic-team/ionic-framework/pull/27134 we fixed a
bug for item button colors on dark mode. We added a test for this in
dark mode, but it was created before we had the infrastructure to test
dark mode within Playwright. As a result, the dark mode theme is hard
coded into the test.
## What is the new behavior?
<!-- Please describe the behavior or changes that are being added by
this PR. -->
- This test has been simplified to only test the things we need to test
- It also relies on the built-in dark theme testing instead of hard
coding the theme.
## Does this introduce a breaking change?
- [ ] Yes
- [x] No
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2. Update the BREAKING.md file with the breaking change.
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## Other information
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---------
Co-authored-by: ionitron <hi@ionicframework.com>
Issue number: resolves#26234
---------
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issue. -->
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## What is the current behavior?
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We use an IntersectionObserver to know when each picker column is
visible so we can properly scroll the active option in each column into
view. The IO callback passes an array of entries. Up until this PR, we
have always grabbed the first entry in the array. The problem is that
browsers will sometimes group multiple events into a single array. This
means it's possible to have an event with `isIntersecting: false` and
then another event with `isIntersecting: true` in the same callback.
Since we always grabbed the first event we did not account for the
instances where events were coalesced.
This resulted in column options sometimes not scrolling into view when
presented via an overlay.
## What is the new behavior?
<!-- Please describe the behavior or changes that are being added by
this PR. -->
- Picker column now grabs the last event in the entries array. This
represents the most recent threshold change.
## Does this introduce a breaking change?
- [ ] Yes
- [x] No
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## Other information
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Dev build: `7.7.5-dev.11710347256.1954cae9`
