Most of the elements that want to be Material (i.e., have a level and cast a
shadow) don't want to be InkWells (i.e., have an ink splash effect). This CL
disentangles these two components, fixing bugs in the Drawer and in the
PopupMenu. Separating these concepts also lets us use Material for the
ActionBar and the FloatingActionButton.
R=rafaelw@chromium.org
Review URL: https://codereview.chromium.org/1037673002
1) Factors InkWell out of Material so that components can use an ink well
without needing the shadow/level machinery.
2) Makes the ink effect move at a different velocity once the tap has actually
occurred, converging with the spec. We don't have the right speeds yet, but
at least we're approaching the right shape.
3) To support (2), added a primaryPointer attribute to GestureEvents to let
authors coorelate gesturetapdown events with later gesturetap events.
4) To support (2), modernized SplashAnimation to used AnimatedValue and friends.
5) Added more constants to view-configuration.dart that match Android.
I've also removed the cancelling of the ink effect on scroll. The proper way to
do that is to notice that someone in the event chain is listening for
scrollstart and delay the beginning of the ink effect for some period of time.
R=eseidel@chromium.org
Review URL: https://codereview.chromium.org/1019023003
This patch removes the mutable API to event handling (Nodes no longer have a events object with which to add listeners).
Instead, a new (non-Render) Node is introduced: EventTarget. This node represents a location in the Effen tree which can handle events as they bubble.
Note that this also changes the implementation to use event delegation (one set of listeners at the sky.document level) rather than direct listeners on leaf nodes.
R=abarth@chromium.org
Review URL: https://codereview.chromium.org/1019633004
This CL is a warmup for using a more sophisticated gesture disambiguation.
1) Use gesturetap instead of click. We should probably remove click events
because folks should use gesturetap to integrate with the gesture system.
2) Handle the case where you swipe the drawer during an animation. Previously
we had an assert which triggered in some multitouch scenarios. We'll
eventually move this over to gestureswipe.
3) Remove an extra container for ink splashes. There's no need to group all the
ink splashes in a container. They can all just be children of the Material
component itself. This structure is left over from when Material was a base
class.
R=eseidel@chromium.org
Review URL: https://codereview.chromium.org/1013713005
To accomplish this, I made the following changes:
1) Material is now in charge of drawing the material shadows.
2) In order to mix in the style for the shadow, Element now takes a list of
Styles instead of a single style.
3) Update all clients of Element#style to understand that we now have a list.
4) Update components that drawer shadows to have Material do that work instead.
a) One exception: FloatingActionButton draws its own shadow because of its
crazy clip requirements. We'll probably want to find a better way for
FloatingActionButton to clip in the future.
I've also added a widgets-fn example to demo the fn material widgets.
This CL introduces a bug into Drawer whereby you can get ink splashes
everywhere in the drawer. In the future, we'll need to separate out the
different material aspects to get non-splashable materials.
R=rafaelw@chromium.org
Review URL: https://codereview.chromium.org/1003553002
Instead of MaterialComponent being a base class, components that want material
behavior simply create a MaterialComponent during their render function. This
approach gives the component more flexibility as to its structure and gives
MaterialComponent more flexibility has to how the components it generates are
related to the existing children.
Also, I've improved some of the event delegation code. There's no reason to
attach event handlers to the root component you emit during |render| because
the framework already delegates events from your root component to you.
R=rafaelw@chromium.org
Review URL: https://codereview.chromium.org/983903003
