This CL teaches simple_render_tree how to do a block layout using layout2.dart.

R=eseidel@chromium.org, ianh@google.com

Review URL: https://codereview.chromium.org/1144423002

This example shows how to draw a circle using subclasses of RenderNode.

R=ianh@google.com

Review URL: https://codereview.chromium.org/1144193004

Clients can now register a callback that gets called whenever we have an event
for the view. We'll need to update the Event class at some point, but this is a
start.

R=eseidel@chromium.org

Review URL: https://codereview.chromium.org/1129333005

R=abarth@chromium.org

Review URL: https://codereview.chromium.org/1133353008

This CL teaches SkyView the width, height, and device pixel ratio of the
display. In the future, we'll want some sort of notification system for when
these values change.

R=eseidel@chromium.org

Review URL: https://codereview.chromium.org/1139823010

This CL adds a global view object that can receive a Picture and be signaled to
draw. When using SkyView, this Picture shows up on screen.

R=eseidel@chromium.org

Review URL: https://codereview.chromium.org/1134913003

R=eseidel@chromium.org

Review URL: https://codereview.chromium.org/1145843002

This CL makes the SkyView codepath smart enough to print "hello, world" to the
console. The code path is off by default but can be enabled by changing one
line of code.

R=eseidel@chromium.org

Review URL: https://codereview.chromium.org/1131673011

to provide a better Dart API.

When the attribute is present on an IDL interface, the generate Dart code will be a private interface that can extended by custom dart code.

R=eseidel@chromium.org

Review URL: https://codereview.chromium.org/1135283005

Revert "Add library names to many sky libraries"

This reverts commit 1337e0a803a54ee92d6dce7f8c4a6335f7cbb9fa.

BUG=
R=abarth@chromium.org

Review URL: https://codereview.chromium.org/1142893007

- Analyzer complains about libraries not having names. This adds names to many libraries.

R=eseidel@chromium.org

Review URL: https://codereview.chromium.org/1150433002

I wrote another copy of paint_element_into_displaylist
using this new technology.

R=abarth@chromium.org

Review URL: https://codereview.chromium.org/1129353010

Currently said elements need to be in the DOM and have
already been laid out for this to work, but follow-up patches
will remove these restrictions.

R=abarth@chromium.org

Review URL: https://codereview.chromium.org/1144673002

NOTE: This CL appears far larger than it actually is for two reasons:

1) Many files were moved around to use the Dart package directory structure.
2) Many .dart files had to have import paths updated.

- Organize mojo/public/dart so that it uses standard Dart package layout
- Organize mojo/dart/apptest so that it uses a standard Dart package layout
- Organize sky/sdk so that it uses a standard Dart package layout
- Create a mojo/testing package (used by unittests)
- Introduce the 'dart_pkg' gn rule which populates gen/Config/dart-pkg
- All internally vended Dart packages must have a corresponding dart_pkg rule
- It is now possible to use dependency_overrides: in pubspec.yaml to mix internal and external package dependencies (enables analyzer, editor, webstorm usage for internal developers).
- Package root for dart content handler ends with "packages/"
- Imports of mojo package uris no longer need the "public/dart"
- mojo/public/tools/dart_package.py is a clone of mojo/public/tools/gn/zip.py
- Sky tests no longer run 'deploy_sdk' script.

R=eseidel@chromium.org

Review URL: https://codereview.chromium.org/1132063007

R=eseidel@chromium.org

Review URL: https://codereview.chromium.org/1132983007

TBR=eseidel

Review URL: https://codereview.chromium.org/1141013003

Also includes a link to all the know bugs that affect the stock app.

R=eseidel@chromium.org

Review URL: https://codereview.chromium.org/1145523003

Changes:
- adds a couple of radio buttons to the drawer menu list.
- makes menu items support being tapped and reporting the tap.
- hooks up the checkbox to actually support being checked.
- changes the drawer menu items to make more sense in a stock app.

R=eseidel@chromium.org

Review URL: https://codereview.chromium.org/1137373004

This is a prerequisite to dropping 'display:none'.
Included in this CL is making AnimatedValue able to animate more than one field.

R=abarth@chromium.org

Review URL: https://codereview.chromium.org/1126333006

This exposes most methods from Skia's C canvas API to Dart. For now, SkRect and
SkMatrix are represented simply as an array of floats, which requires a
conversion at the bindings layer. More complex types like SkPath are still TODO.

R=eseidel@chromium.org

Review URL: https://codereview.chromium.org/1144483002

This adds a new abstract 'Canvas' which is similar to SkCanvas.
PaintContext implements Canvas while still having its
own commit() method to cause the paint actions to apply to
the Element for the next frame.
This adds a new PictureRecorder which also implements Canvas
and has an endRecording() method which returns a Picture
(another new interface) which can be held from Dart.

There is also now a rootPicture setter on Document which takes
a Picture and will then make the Document draw that Picture
until changed.

This piggybacks on the existing custom painting system
which adds the painting at background-and-borders paint
time so technically if you both set rootPicture as well as
construct a DOM you will draw the DOM on top of your picture. :)

R=mpcomplete@chromium.org

Review URL: https://codereview.chromium.org/1122423009

This CL does the following:
- Moves mojom's generate.dart from bin/ to lib/ to make it available for use
  by a wrapper scripts in the Sky package, thus avoiding all consumers of Sky
  needing to directly depend on mojom to be able to call
  "pub run mojom:generate".
- Adds a sky->mojom pub dependency and creates a wrapper script around mojom's
  generate.dart in the Sky package.
- Augments the Sky README to explain the usage of this script.

R=eseidel@chromium.org, sethladd@google.com

Review URL: https://codereview.chromium.org/1136503002

- add a checkbox to the stock app, so that we're testing the checkbox widget
  (it's not currently wired up to anything, that can come later)
- make InkSplash use FlexContainer so that we can use flex in the popup menu items
- make effen's Text be more similar to Image and Container, so that it can be styled
- make layout.dart's RenderCSSText correctly support being styled
- also fixes a bug with the stock list where we were rendering one too few a row when scrolling
- check in the code to dump the DOM so I don't have to keep remembering how to do this

R=eseidel@chromium.org

Review URL: https://codereview.chromium.org/1134163003

Analyzer was complaining about '-' not being an allowed character
in dart file names.

R=jamesr@chromium.org

so that pub get will create a packages/ directory for each
and users of packages/sky/sky_tool can run these examples
from sky_sdk as the instructions say to.

TBR=ianh@google.com
https://github.com/domokit/mojo/issues/128

Review URL: https://codereview.chromium.org/1110283002

TBR=ianh@google.com

Review URL: https://codereview.chromium.org/1114553004

Also fixed missing entry in CHANGELOG.md

TBR=ianh@google.com

Review URL: https://codereview.chromium.org/1108393003

TBR=ianh@google.com

Review URL: https://codereview.chromium.org/1104093004

This is just copy-pasted from shelldb but should work.

TBR=ianh@google.com

Review URL: https://codereview.chromium.org/1112433003

This is a fork of sky/tools/download_material_design_assets
which does not depend on depot_tools and assumes that its
right next to the assets directory instead of finding it
relative to the mojo root.

R=ianh@google.com

Review URL: https://codereview.chromium.org/1106373002

TBR=eseidel

Review URL: https://codereview.chromium.org/1065653009

remove members that are never read
remove imports that are never used

R=eseidel@chromium.org

Review URL: https://codereview.chromium.org/1099203002

- make the ScrollBehavior instance long-lived, rather than recreating
  it each time we update the list contents.
- have OverscrollBehavior track the total height of the contents and
  the height of the scrollable region, so that it can determine when
  to stop scrolling down.
- teach OverscrollBehavior about how to determine when to stop
  scrolling down, and how to bounce when it's too far down.
- replace the 'energy' concept in Particles with a method that sets
  the energy and direction at the same time, instead of assuming that
  the direction is always positive when setting energy.
- make FixedHeightScrollable lists track the number of items in the
  list and have them update their ScrollBehavior regarding this
  information as it changes.
- track how many items are currently showing in the list stock list.

R=eseidel@chromium.org

Review URL: https://codereview.chromium.org/1097373002

[Effen] Only skip rows we're showing, when skipping past the rows that we've scrolled beyond in the stock list.

Currently, if you then scroll down N items with a filter set, we select which
stock to show by taking the entire list of stocks, skipping the first N, then
filtering the list, then selecting as many stocks as needed to fill the list.

So suppose the list is A, B, Cx, Dx, Ex, F, and the filter is "x", and you've
scrolled down 1 item.

Currently we'd show Cx, Dx, Ex.

Scroll down 1 again.

We still show Cx, Dx, Ex.

What we _should_ show is Dx, Ex if you've scrolled down 1, and just Ex if you've
scrolled two.

This patch fixes this. We now skip rows _after_ filtering. This fixes
the bug whereby if you set a filter then fling the list, we show the
same item over and over as if in a loop.

R=eseidel@chromium.org

Review URL: https://codereview.chromium.org/1057603006

This will require me to roll the sky pub package, sigh.

R=ianh@google.com

Review URL: https://codereview.chromium.org/1090713002

TBR=hansmuller@chromium.org

Review URL: https://codereview.chromium.org/1082413002

R=ianh@google.com, ojan@chromium.org

Review URL: https://codereview.chromium.org/1085933002

Also fixed display of text in touch-demo.sky

R=ianh@google.com

Review URL: https://codereview.chromium.org/1059743004

TBR=hansmuller@chromium.org

Review URL: https://codereview.chromium.org/1073243002

TBR=hansmuller@chromium.org

Review URL: https://codereview.chromium.org/1074933003