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

Ensure that sky Nodes are in the document when didMount() is fired. Refactor FixedHeightScrollable to inspect heights rather than having the passed in

BUG=
R=abarth@chromium.org

Review URL: https://codereview.chromium.org/994553003

TBR=eseidel
BUG=

Review URL: https://codereview.chromium.org/987833002

This patch changes the timing of the unmount call until after the component is removed (and marked as such) and allows setState to be called after this point. If this happens, setState will still invoke the closer to do any neccesary cleanup, but doesn't schedule the component for render

R=eseidel@chromium.org, eseidel
BUG=

Review URL: https://codereview.chromium.org/985853002

TBR=eseidel
BUG=

Review URL: https://codereview.chromium.org/983173003

This provokes a rendering bug in MojoShell but not in SkyShell.

R=eseidel@chromium.org

Review URL: https://codereview.chromium.org/984793002

To test:
sky/tools/shelldb analyze sky/examples/stocks-fn/stocksapp.dart

It prints 600+ warnings about the "native" keyword, and after
this change only a couple warnings about missing library names
which I don't fully understand.

R=abarth@chromium.org

Review URL: https://codereview.chromium.org/987613002

R=eseidel@chromium.org

Review URL: https://codereview.chromium.org/980043005

That's where it belongs.

R=eseidel@chromium.org

Review URL: https://codereview.chromium.org/979283002

It's awkward to work on fn.dart in the examples directory so this CL moves it
to /sky/framework. Also, I've merged the whole library into one file instead of
using the |part| mechanism. The whole thing isn't that big.

R=eseidel@chromium.org

Review URL: https://codereview.chromium.org/987463002

These examples don't work anymore and have been replaced with
color-chooser.sky.

R=eseidel@chromium.org

Review URL: https://codereview.chromium.org/987443002

This CL changes the duration of the drawer animation to match the values used
by the Android framework.

R=eseidel@chromium.org

Review URL: https://codereview.chromium.org/976193002

- Removed out-of-date README.md
- Moved fling-curve into the animation directory because it's part of the
  animation behavior of the system.
- Moved view-configuration into the theme directory because it's a collection
  of constants similar in flavor to the colors and the shadows. Eventually
  we'll want to make the theme configurable and have these all together will
  hopefully make that easier.
- Moved dom-serializer into tests/resources because it is used only by tests.

R=eseidel@chromium.org

Review URL: https://codereview.chromium.org/980423002

Instead, we can just use the existing animation/curves.dart file in the
framework.

R=eseidel@chromium.org

Review URL: https://codereview.chromium.org/976373003

This CL removes the hard-coded colors and shadows from the fn widgets and
replaces them with compile-time constants. The color values are from the
material spec:

http://www.google.com/design/spec/style/color.html#color-color-palette

R=eseidel@chromium.org

Review URL: https://codereview.chromium.org/983733003

Instead of duplicating fling-curve.dart in fn, we now share the existing copy
in sky/framework.

R=eseidel@chromium.org

Review URL: https://codereview.chromium.org/976363003

Previously, the two versions of this sample app had separate copies of the
stock data. This CL moves the common data to the common data directory so that
they can share. Also, I've switched the data files to be |dart| files rather
than |sky| files to make them easier to use from fn examples.

R=eseidel@chromium.org

Review URL: https://codereview.chromium.org/980953002

This CL removes a bunch of examples that don't actually work in the current
engine. I've also renamed example-element to custom-element and
example-scrollable to scrolling because the word "example" in the name is
redundant with the name of the directory.

R=eseidel@chromium.org

Review URL: https://codereview.chromium.org/980323003

This CL changes how events work in fn. Previously, event listeners were passed
in as constructor arguments. Now Nodes hold an |events| object, which contains
all the event registrations. When a Component renders, all its |events| are
copied onto the Node it produces. When an Element syncs, it walks its |events|
and adds them as event listeners on the underlying sky.Element.

The net result of this change is increased flexibility in how events are
registered. Now components don't need to enumerate all the possible events that
they support. Instead, the parent component can listen for whatever events it
likes.

Also, I've cleaned up the association between DrawerAnimation and Drawer. Now
the constructor for Drawer accepts an |animation| object and wires up its
internal event handlers itself instead of requiring the constructor to do all
the wiring.

R=rafaelw@chromium.org

Review URL: https://codereview.chromium.org/975863003

This CL adds license blocks and cleans up a number of Dart idioms in fn.
Specifically, I've marked several fields as |final| and used Map#putIfAbsent in
some appropriate places.

R=rafaelw@chromium.org

Review URL: https://codereview.chromium.org/973613004

R=rafaelw@chromium.org

Review URL: https://codereview.chromium.org/970393002

If there is jank, we might not get a frame time that's just after the last
frame, which means we'll stop generating animation frames before hitting 1.0
exactly.

In this CL, we introduce state to takeWhile to cancel the stream after emitting the
1.0.

R=rafaelw@chromium.org

Review URL: https://codereview.chromium.org/975153002

TBR=abarth

Review URL: https://codereview.chromium.org/975203002

TBR=raf

Review URL: https://codereview.chromium.org/974903005

R=rafaelw@chromium.org

Review URL: https://codereview.chromium.org/975913002

R=abarth@chromium.org

Review URL: https://codereview.chromium.org/973133002

This is just a proof of concept. If we like this direction, it will move out of the examples directory (likely re-written) and be committed in smaller pieces with unit tests and formal reviews.

TBR=abarth
BUG=

Review URL: https://codereview.chromium.org/971183002

double is a built-in type in Dart. float isn't...

TBR=eseidel@chromium.org

Review URL: https://codereview.chromium.org/968293003

The touch demo needs some basic smoothing, right now
it looks rather jittery after this change.  But the pressure
code is definitely working!

R=abarth@chromium.org
BUG=

Review URL: https://codereview.chromium.org/970493003