Before users had to know the exact opacity that the MD/iOS spec called for in order to change the hover or focused background color. This allows them to change the background without having to know the opacity.
- changes apply to Action Sheet (Buttons), Back Button, Button, FAB Button, Item, Menu Button, Segment Button, Tab Button
- greatly reduces the requirement by users to set the background hover, focused states for dark modes and custom themes, also eliminates the need to know what the hover opacity is for each based on the spec
- updates the MD dark theme per their spec
- adds a component guide for internal use changing Ionic components
references #18279fixes#20213fixes#19965
BREAKING CHANGE:
*Activated Class*
The `activated` class that is automatically added to buttons on press has been renamed to `ion-activated`. This will be more consistent with our `ion-focused` class we add and also will reduce conflicts with user's CSS.
*CSS Variables*
The `--background-hover`, `--background-focused` and `--background-activated` CSS variables on components that render native buttons will now have an opacity automatically set. If you are setting any of these like the following:
```
--background-hover: rgba(44, 44, 44, 0.08);
```
You will likely not see a hover state anymore. It should be updated to only set the desired color:
```
--background-hover: rgba(44, 44, 44);
```
If the opacity desired is something other than what the spec asks for, use:
```
--background-hover: rgba(44, 44, 44);
--background-hover-opacity: 1;
```
Changes
Closes#18663
* Converts Segment to shadow
* Enables gesture to swipe between segment buttons
* Adds indicator transition to slide the indicator between buttons
* Updates global theme variables
* Removes activated state, now handled by the gesture
* Updates iOS to latest iOS 13 UI
* Ensures customization is working for the buttons and indicator
* Updates the e2e tests
- updates menu-button to use the host element
- moves menu-toggle logic to a utils file for menu button to share
- removes the dependency on menu-toggle
- adds an e2e test for an auto-hidden menu button
fixes#18666
- Removes the padding from the main toolbar and individually style the components inside of it
- Adds a `has-icon-only` class to button, this is used to switch between `unbounded` and `bounded` ripples on buttons in a toolbar. If the button is clear and only has an icon, we use the unbounded "circular" ripple effect, otherwise still use the bounded one. This matches the MD spec, without making the other buttons look off.
- Using the class above, style the button differently to match the MD spec
- Updates the back button and menu button to use the proper size / icon size
- Removes the opacity on an activated back button, it should use the ripple for activated
- Moves the margin to the slots in a toolbar by grabbing the "first" and "last" slot and applying a class to them
- Makes the segment in a toolbar use the min height from the toolbar
- Updates the back button so that it matches the MD spec
- Updates the header box shadow to use the old v3 datauri
fixes#16950fixes#14444
- Updates the iOS buttons in a toolbar to use the proper global theming variables
- Updates the iOS segment to use the correct background variable when checked
- Updates the iOS back button and menu button to use the proper color in a toolbar
- Updates the iOS buttons in a toolbar w/ color to use the proper contrast colors (background, borders, text, hover, focus), mostly solid and outline buttons were affected
- Updates the CSS that applies the global toolbar variables so that it won't affect toolbars w/ a color
fixes#18184, fixes#17840
- removes mode-less component classes from the internal CSS, use element instead
- adds mode specific classes `md` or `ios` for styling inside of shadow components
- adds e2e test that verifies mode classes exist on all ionic components, plus checks for specific classes that the components need for internal styling
fixes#17608
