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

We're now doing all of the elements of the popup menu entrance animation from
the material design spec, but our timing and curves might not be exactly right
yet. I haven't started on the exit animation.

R=eseidel@chromium.org

Review URL: https://codereview.chromium.org/1017193004

R=abarth@chromium.org

Review URL: https://codereview.chromium.org/1022613002

Before this change Sky would hit 404s when trying to
load examples from domokit.github.io.

I also added a separate sky_home and updated the default
url to point to sky_home instead of home.

R=abarth@chromium.org

Review URL: https://codereview.chromium.org/1016143002

This CL also refactors how animations work, particularly for the Drawer. I've
renamed DrawerAnimation to DrawerController and switched it from being an
Animation to having an Animation. I've also renamed Animation to AnimatedValue
to capture the idea that the class actually presents the value being animated.
Finally, I've factored AnimatedValueListener out of Drawer so that it can be
used by PopupMenuItem as well.

Finally, I've added a scheduleBuild convienence function to Component instead
of having to call setState(() {}), which has come up a couple times.

R=eseidel@chromium.org

Review URL: https://codereview.chromium.org/1016093002

We should probably move this menu into a view for an individual stock, but for
now add it to the main stock screen.

R=ojan@chromium.org, eseidel@chromium.org

Review URL: https://codereview.chromium.org/1008003007

1) Add a pubspec.yaml.
2) Move all the code into a 'lib' directory.
3) Move the stock widgets out of the app's library.

TBR=eseidel@chromium.org

Review URL: https://codereview.chromium.org/1011023003

Ditto for terminal_client.mojom, previously in examples/echo_terminal.

Fix the sky terminal example.

R=erg@chromium.org

Review URL: https://codereview.chromium.org/1013313002

Currently this widget is demoed in widgets-fn, but I'll move it into stocks-fn
soon.

R=eseidel@chromium.org

Review URL: https://codereview.chromium.org/1017873002

The packages produced from this CL were deployed
as v0.0.1:
https://pub.dartlang.org/packages/sky
https://pub.dartlang.org/packages/mojo

There is still no tool included with the sky
package due to pub's inability to run anything
other than Dart:
https://code.google.com/p/dart/issues/detail?id=22877

I'm likely just going to write a dart version
of my "sky" script. :(

R=ojan@chromium.org, abarth@chromium.org

Review URL: https://codereview.chromium.org/1015833002

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

This CL adds typography information to the Sky theme. The values are from the
Material Design spec. I've also applied these values to the stocks app and the
various components.

We're not geting precisely the right typography in some cases because of
https://github.com/domokit/mojo/issues/65.

R=eseidel@chromium.org

Review URL: https://codereview.chromium.org/1006363004

The left edge of the title should be on the 72px vertical keyline according to
the Material Design spec.

R=eseidel@chromium.org

Review URL: https://codereview.chromium.org/1010443005

This naming matches the naming in Material Design.

R=eseidel@chromium.org

Review URL: https://codereview.chromium.org/1010913002

R=abarth@chromium.org

Review URL: https://codereview.chromium.org/1006053002

This CL cleans up the sky/framework/animation as follows:

1) I've moved code that's used only by the custom elements framework into
   sky/framework/elements/animation. This code is based on AnimationDelegates
   rather than Streams.
2) Rename ScrollCurve to ScrollBehavior because it encapsulates more behavior
   than just a curve.
3) Make the Generator interface explicit and mark subclasses as actual
   subclasses.
4) Move Simulation into generators.dart because it implements the Generator
   interface.
5) Move Animation out of generators.dart because it does not implement the
   Generator interface.

R=eseidel@chromium.org

Review URL: https://codereview.chromium.org/1001373002

When using OverscrollCurve, we continue to scroll beyond the top of the
scrollable area but the scroll delta is reduced by 2x. A future CL will add an
animation at gesturescrollend to relax back to scroll position 0.0.

R=eseidel@chromium.org

Review URL: https://codereview.chromium.org/1002953003

Intead of hard-coding the notion of bounded scrolling into Scrollable, this CL
factors out a ScrollCurve class that applies the bounds. In the future, we'll
refine this mechanism to implement overflow scrolling.

R=eseidel@chromium.org

Review URL: https://codereview.chromium.org/1005633002

R=eseidel@chromium.org

Review URL: https://codereview.chromium.org/1000863002

Also:
* Fix consecutive spaces (don't collapse them).
* Add support for ^L.

Still doesn't work:
* Totally blank lines. (I know why, but I don't know why I can't seem to
  fix it.)

R=erg@chromium.org

Review URL: https://codereview.chromium.org/997873004

D'oh.

TBR=erg@chromium.org

Review URL: https://codereview.chromium.org/998103002

(Together with an app that echoes stuff from the terminal.)

R=erg@chromium.org

Review URL: https://codereview.chromium.org/999193002

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

We're not actively developing these at the moment.

I could also just delete them, not sure if we're ready for that yet.

TBR=abarth@chromium.org

Review URL: https://codereview.chromium.org/999873002

We don't yet reset the scroll offset, so sometimes you can't see your search
results properly.

R=rafaelw@chromium.org

Review URL: https://codereview.chromium.org/1002453003

R=rafaelw@chromium.org

Review URL: https://codereview.chromium.org/996213004

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

The search field doesn't do anything, but it's there.

R=eseidel@chromium.org

Review URL: https://codereview.chromium.org/998803002

Moving these files into sky/framework will make them easier to use from the
SDK. Also, this CL also splits up the giant "widgets" library into smaller
libraries, one per component.

TBR=eseidel@chromium.org

Review URL: https://codereview.chromium.org/993033003

The implementation details are in sky/framework/editing.

R=eseidel@chromium.org

Review URL: https://codereview.chromium.org/983213005

We don't yet have a focus controller, which means once this control becomes
focused there's no way for it to lose focus.

R=eseidel@chromium.org

Review URL: https://codereview.chromium.org/999553002

http://www.google.com/design/spec/components/lists.html#lists-behavior

R=abarth@chromium.org

Review URL: https://codereview.chromium.org/993093004

54px on small screens:
http://www.google.com/design/spec/layout/metrics-keylines.html#metrics-keylines-keylines-spacing

TBR=abarth@chromium.org

Review URL: https://codereview.chromium.org/995133002

This CL factors EditableString out of EditableText and implements more of the
InputConnection functions. As a result, EditableText now basically works.

This CL also paves the way to make EditableText stateless by using
EditableString as its state object. However, there's still a bit more work to
do to make that a reality (e.g., factoring out the cursor blink timer and the
connection to the keyboard).

R=eseidel@chromium.org

Review URL: https://codereview.chromium.org/995073002

This patch allows for an initial delay before an animation begins and also adds an Animation class which encapsulates a value which is long-lived, can be explicitly set and also animated from its current value to another value.

BUG=
R=abarth@chromium.org

Review URL: https://codereview.chromium.org/994143002

This CL introduces a new keyboard service that understands Android IME and
starts work on a Input component that interacts with this service to provide an
editing control.

R=eseidel@chromium.org

Review URL: https://codereview.chromium.org/995613002

"Render" is misleading. "Build" may not be the best word either, it's closer to what's actually happening.

R=ojan@chromium.org
TBR=abarth
BUG=

Review URL: https://codereview.chromium.org/992033002