* [Buttons] Remove .largeIcon shape from FloatingButton (#2513)
The LargeIcon shape is not required, since the same behavior (support
for 36-point images) can be achieved by setting the contentEdgeInsets to
.zero.
Also updates one of the button examples to use a 36-point icon.
* [Buttons] Add extended FAB layout code (#2528)
Creating (internal for now) the required properties and layout code to support
the extended FAB. Unit tests to confirm the behavior and some minor
adjustments to existing values like default contentEdgeInsets values.
Implements #2495
* [Buttons] Expose Extended FAB properties (#2543)
Making the new properties public and also migrating away from simple
property setters to the new forShape:inMode: setters required for
UIAppearance support.
* minimumSize
* maximumSize
* contentEdgeInsets
* hitAreaInsets
Implements #2495
* [Buttons] Add basic Floating Button example (#2554)
Includes automatic adjustment of extended/normal layout depending on size
classes.
Demonstrates #2495
* [Buttons] Update README for Extended FAB (#2561)
The README includes usage examples for the FAB. Adding a section to
demonstrate how to configure the FAB in its different shapes and modes.
Documents #2495
All examples now have at least the required `+catalogBreadcrumbs` and `+catalogIsPrimaryDemo`. All examples in the same breadcrumbs path have only one primary demo. There should be only one `-catalogDescription` attached to the primary demo.
Closes#1897
* [Buttons] Unbounded ink aligns to content insets
Unbounded ink should be centered on the content of buttons, but bounded
ink should remain aligned with the bounds of the button.
* Changing Ink behavior for unbounded ink
* Modified Content Rect Insets example in the Catalog
Closes#1669
* Making example buttons have same width
The `contentEdgeInsets` value of an MDCButton causes the `_inkView` to
realign to match the `contentRect`. This results in a ripple/highlight
that does not match the position of the button on-screen (doesn't align
with the background).
This commit removes the re-alignment code, so `_inkView` will remain
aligned with the rest of the button's view.
