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Change-Id: I904a77812093a34d2b5cabf792b157e048ab6bb0

Also fix scaling issues with ActionBar update

Fixes #1055 and #1056

Change-Id: I04099732b574bf14a329a06c0bcfc75850a4315f

This commit adds support for Maps using OpenStreetMaps and USGS tile
layers. It also adds a number of components related to Maps:

1. Marker: Custom markers to represent points on a map.
2. LineString: Line segments drawn on the map.
3. Polygon: Polygons to draw 2D areas on the map.
4. Circle: Draw a circle at a point with a given radius.
5. Rectangle: Polygons, but fixed corners/sides.
6. FeatureCollection: Collections of the above loaded
   from a GeoJSON file.

Change-Id: Ib2d7155094f2557e102de118d5c629abb9675086

CloudDB is similar to the FirebaseDB component but does not require a
proprietary back-end database. Instead the back-end is based on the open
source Redis system which is a well used and scale-able data storage
solution.

With CloudDB you can store arbitrary data, including binary image data,
based on a “tag” which is a string. The “tag” is combined with
ProjectID (which defaults to the name of the current project, but can be
changed) so that multiple projects can use the same tags without
interfering with each other.

The domain name system name of the Redis server should be configured the
“RedisServer” property. This defaults to “DEFAULT” which is a server
provided default (more on that below). The “Token” property should be
the password required for the Redis Server. An “out of the box” Redis
server does not implement SSL, so the UseSSL property should be
unchecked.

In the DEFAULT setup, the server name is set to DEFAULT, UseSSL is
checked and the Token is automatically generated when you load a
project. In the DEFAULT case, a special modified Redis server is used
which implements multi-user features which provide isolation between
different MIT App Inventor programmers. It also uses SSL to protect
on-line communications from interception.

Author: Natalie Lao <natalie@csail.mit.edu>
Author: Jeffrey I. Schiller <jis@mit.edu>
Author: Joy Mitra <joymitro1989@gmail.com>

Change-Id: Ic7d7aa0f7337a5452d9c138920813deb797fac20

Fix the AcclerometerSensor component for tablets that use Landscape mode
by default. Add a “LegacyMode” designer property so people can revert
this behavior for apps where they have performed the needed compensation
in their own blocks (though we would prefer they just fix their blocks).

Change-Id: I29157612d54dd28ec0e85a822ef47f6ddd73b05c

Fixes #1059 

Change-Id: I4443b16af39923a0053e93ba941f63a7db974cc4

Fixes #1002

Change-Id: If3e9612736cf8b827d47b6738a4d979fd0aaff3e

Permit sub-packages stored in sub-directories in extensions. Before this
change sub-packages were mistakenly placed in the main package’s
directory, resulting in a non-functional situation

Fixes #962

Change-Id: I8797cdca8fb98485264d7f691b5f90eb83f20fd6

We added a mechanism that moves the workspace when highlighting a
procedure definition block. However, we do not provide a mechanism to
go back to the original viewport position prior to the move. This
commit adds a WorkspaceMove event that is recorded when the workspace
is shifted and can be undo via the normal undo/redo stack to return
the user from where they came in the workspace.

Note this is not robust to changes in the viewport size between
operations.

Change-Id: I09f1af2f3d7db62af0f1487a90a56a66f99273bc

There was a visual glitch when dragging variable getters into sockets
due to the error icon appearing and shifting the block visually from
the coordinate Blockly maintained as the drag position. This resulted
in the connection highlight and checking algorithms to not fire when
the blocks were visually aligned but rather when the internal states
were visually aligned. This commit prevents checking a block for
errors if the block is being dragged. After the drag is complete, a
Move event will be triggered and the workspaceChanged listener will
perform an error check at the time the block is dropped. This prevents
an error icon from causing the aforementioned glitch.

Fixes #971

Change-Id: I225dac2a278b58dae9e520747a9f2c69c96bf109

Previously the blocks editor would only highlight a procedure block
when the "Highlight Definition" context menu item was chosen. This
version will also scroll the workspace so that the definition block is
visually centered in the workspace when possible, with a constraint
that the top-left coordinate must appear on the screen.

Fixes #984

Change-Id: If8c06825b285ad7008cbf6f7e7948392be12c0c0

Fixes #995

Change-Id: Icc3c90f9b5d18925031e1183d84ca84310208e7b

When we updated the Closure Compiler for the Blockly update, some
strings containing HTML were escaped unnecessarily. These strings are
part of internationalization, and so they will be code reviewed before
acceptance into the code base. We therefore break the SafeHtml
contract imposed by Google Closure Library and manipulate the content
element directly so that the static HTML content is preserved.

Fixes #985

Change-Id: I8a545d46aceedcb8039f194ce03a86d924ab0867

An interaction between an upgrading an extension with a new version
number and a change to YaVersion results in being unable to open a
project with extensions. This fix does two things to address this:

1. Force a save of the project so that the version numbers of the
extension are persisted back to the server.
2. Check whether a component to be upgraded is an external component,
and if so, skip the upgrade step since we don't have an upgrader for
it anyway.

Fixes #996

Change-Id: I6d39f70b3cac80961ed538f5a2bd99ab81729a5e

Assisting users with extensions is difficult because it is unclear
whether problems occur because of bugs in the extension or due to a
mismatch in versions when extensions work together. This commit adds
an "Extension Version" header on the helper widget that displays the
version number specified in the @DesignerComponent annotation if the
version number is greater than 0.

Closes #894

Change-Id: If7fdd49795e81f8ff784036ce5745de499aafbd9

This commit reconciles our implementation of the `if` block with the
implementation in Blockly. In particular, our implementation only
works under the assumption that the user is making changes via the
mutator and causes graphical problems when the undo/redo feature in
Blockly is used. The Blockly version correctly handles undo/redo, but
the mutator is slightly different in its implementation. This change
maintains our visual presentation of the mutator but uses the Blockly
logic for updating.

Fixes #973

Change-Id: Ib335d4cd7f132f8bf21f9c691ee7a7e53f28e674

I have updated all of the reference documentation pages to use the new
MIT AI logo.

Fixes #932

Fixes #959

Change-Id: I07a51181269adfd79b8db11a40cec66dc43a4ed9

Prior to this commit, changing the target property in a getter/setter
block would not update the tooltip of the block to match the new
property. This commit updates the tooltip in response to the dropdown
selection changing.

Fixes #964

Change-Id: I7ab095699f533fd262f2dc69cbae515e96163b8f

The previous commit adds support for the AccelerometerSensor to
compensate for default landscape tablets. This change adds a flag that
can be used (in branding branches) to disable this change at compile
time.

Change-Id: I6a98d2c7e2fdfab06ac5b40c9f9641acdd836be8

Change the accelerometer so that Xaccel and Yaccel behave on
LandscapePrimary devices the same way as they do on PortraitPrimary
devices.  If you hold the device vetically (long edge vertical) then
xAccel should be 0 and yAccel should be -9.  Rotate 90 degree
counterclock wise and xAccel,Yaccel should be 9,0.  This should be true
on both PortraitPrimary and LandscapePrimary devices.

Change-Id: I2537be388a7c77fee0a7f85bff98abe217546c80

Do not store the ActionBar property if it is set to its default value,
which is “False.” This permits the Pre-ActionBar aware Companion to work
with projects, as long as the ActionBar property is left unchecked.

Change-Id: I3afaa761e66d7eecc5eb5ed79d9d6d7aa86835f3

Opening and closing a mutator or clicking a block would result in the
blocks code being resent to the companion because any workspace event
would force a YAIL update. This change adds a isUi method to check
whether a Blockly event is a UI event, which doesn't change the
semantics of the program, and ignores such events for the purpose of
updating the companion.

Change-Id: Id80d1d094e585cc7182fe3987f8e0adc2b45b872

Warning indicator counters were 0 even if there were warnings in the
workspace. This was due to a combination of optimizations where the
warnings aren't computed if the workspace isn't rendered and the
indicator isn't created until the first rendering pass. This means
that when the indicator is rendered it has not been updated with the
results of any error checking passes have been made.

Fixes #953

Change-Id: I5641c6444efeab9228efca5a74a78ed3a4577484

Fixes #944

Change-Id: I9fbb8d8a5d2c546ad44ab639f21a165fd7194d1e

When upgrading a project, do not attempt to save the upgraded version if
we are in read only mode.

Change-Id: I7e2f089293ae864dbe1a18c2504ac71d1b51fc9d

This commit fixes two bugs:

1. NPE due to a race condition where clear() was called in the
   ReplForm before the FrameLayout was initialized.
2. setImageTintMode on an internal Widget wasn't supported on
   Android 4.x, resulting in a crash on connection.

Change-Id: Ia28f9eaa404fa0b8f830d5a809d77226a611b36c

Make sure the button in the designer scales along with the font size.

This change is a simplification of work originally done by Olivier Midy
<osmidy@mit.edu>.

Change-Id: Iad2033001f26b102506f8bba2dff89f94f6b8ab6

Large projects demonstrated that an O(n^2) behavior for the MockForm
refresh function caused significant slowdown when loading and
rendering large projects in the designer. Jeff originally fixed this
by introducing a timer so that at least 2 seconds were provided
between refresh calls. However, this introduces some visual glitches
when components are dragged or immediately after project load due to
the fact that up to two seconds must elapse before the component sizes
are updated.

This commit uses a timer that immediately fires after the current
JavaScript execution context finishes so that changes to the form and
its components takes effect immediately on the next render pass. To
prevent O(n^2) behavior, only one timer is scheduled at any one point,
and the timer is only cleared after the refresh pass has completed.

Change-Id: I7c43ec19b6aad2d8fa6de2d5cdbf9913dec44abf

The Blockly update broke how the REPL interacted with App Inventor
when switching between projects after connecting. This change ensures
that pollYail is called when a workspace is made active so that the
screen will be updated accordingly.

Change-Id: I3b10365e59d247590a7f5f9e522a450b7ad2ab4b

Blocks workspace upgraders sometimes operate on the workspace in XML
form rather than workspace form. When we did the Blockly update in May
2017, we moved updating the positions of blocks to occur immediately
before the first render of the workspace rather than at workspace load
time. This results in all blocks being at 0, 0 if the project relied
on a component where the upgrader used XML because the blocks do not
get positioned until after the upgrade has run.

This code wraps the blockToDOMWithXY function to update the position
of the block during serialization to XML if rendering is turned off,
i.e. we are loading the workspace.

Fixes #920

Change-Id: Ie19cbe4207e6c36979c2adb767748bb54def4551

App Engine may soon require that static content be declared static in
appengine-web.xml. This change makes sure these directories, which hold
the “Terms of Service” among other things, are properly declared.

Change-Id: Id7409362e96a731cec75bd6cbbe3de376bf2beec

The component processor only allows concrete types to be specified as
Java method parameters and return values. However, for abstraction it
is sometimes useful to use an interface or abstract base class in
order to reduce repeat code. This commit updates ComponentProcessor to
use the class hierarchy of any parameter or return type of a property,
method, or event to determine whether an entity passed through would
be a Component.

Change-Id: Ie2487ed20ad1b4ca6e8acc08ca8102cb6b7eb258

Change-Id: Ib30e302ecf5f19970532bab66e409e50aed08b40

With the addition of the Android support libraries we can now allow
users to change the theme and colors of their apps globally. This
commit adds a handful of properties to accomplish and give rough
approximations of the theme in both the web environment and
companion. Some colors cannot be changed at runtime so the only way to
see the results is to compile an app.

Change-Id: Iba0be346f1824445ab4edcdca37dd384abd42850