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Stack overflow errors (and other subclasses of java.lang.Error) were
not beign reported to the blocks editor/ReplMgr, as reported on the
forum. This commit updates runtime.scm so that Throwable is caught at
key points and if the Throwable is an Error that it is converted to a
string since the dalvikvm may not provide useful information in the
Throwable's getMessage(). This resulted in an "undefined" error due to
the lack of an error message.

Fixes #909

Change-Id: I02e2065321bd92cb566f40cb478e9ec3e9c24246

in Java.  Join-strings takes a list of strings and a string separator.
I concatenates the strings, with the separator interlaced, and
returns the result.  On small-memory systems (e.g., the emulator), and
with list of strings that have many elements (thousands), the Kawa
implementation was running out of stack (recursive implementation) and
blowing out memory (tail-recursive implementation).   So we'll use
a Java implementation instead.

Change-Id: Id5e9f1bf9d04f70e4a5dd181708f58d2779ccbac

Includes the favicon.ico as well as the logo

Change-Id: Ie05bd5e3a6a3f072c81c91d11aee60b52fe9905c

A user reported an issue with a project where connecting the companion
caused the ReplMgr to go into an infinite loop. The issue was due to a
combination of setter block having an empty socket (triggering an
error resulting in the slow path) and the fact that there were more
than 20 top-level blocks in the project. After testing the first 20
blocks it would attempt the fast path, which would retrigger the slow
path, ad infinitum.

This commit updates the countdown in the slow path to use the number
of top-level blocks in the workspace rather than hard-coding 20
checks.

Fixes #887

Change-Id: Ie15b0f35cd145ecc0b789707f032eca6c179d107

Prior to the IOT release, extensions were packaged using the FQCN of
the extension inside of the AIX file. To faciltate being able to
contain multiple extension components in a single package, we switched
to using the package name rather than the FQCN. This causes backward
compatibility issues for extension developers who released extensions
prior to the update.

This commit adds a extensions.packagefqcn property to ant that can be
set to true by developers supporting older extensions so that the
internals of the extension package reflect the older layout. It is
recommended that all new extensions be built with the default (false)
to benefit from the new layout.

Change-Id: Idd9134c7d4d7c19f9a8869e4f88e164e2efa5cc8

ClientJsonParser was calling a GWT API that used eval() to parse JSON
content rather than JSON.parse(). A maliciously crafted project
containing an extension components.json file with Javascript instead
of JSON would allow injecting arbitrary Javascript into the user's
session. This commit switches to strict parsing and includes exception
handling to report corrupt/invalid components.json to the user.

Change-Id: Iafaaf004310ac45cf0c1cea18eae1cfd58de17ef

If a project contained multiple extensions sharing the same package
name, deleting one extension would also remove the other extensions
sharing that package name. This generally shouldn't happen going
forward because extension bundles automatically group extensions by
package name (which is why this logic is in place), but it didn't
handle the case where old extensions were in the same package.

This commit groups extensions by the components.json file that defines
them, and only deletes those extensions that are siblings by the
components.json file, rather than blanket-deleting extensions solely
by package name.

Fixes #910

Change-Id: I26a5db29a3919033fd50f2a2d65c6f805513ae2c

Replace the default App Logo with our new Bee based version.

Change-Id: Ibfaa3792bf29d799b253b261cd83b26e187eaa18

Change-Id: I16d609f13d7818a03f4de13761aaca3d1f5c40b2

Change-Id: Ic5f5d83e40051cfd62504196bd71f9a9781b521f

Taifun reported that importing many extensions of the same package
name into a single project made them unable to load. This change
detects this scenario and returns an error to the user preventing them
from loading the conflicting extension. There is also a test to ensure
that if one has two extensions in the same package and then loads a
bundle containing the individually FQCN extensions the old extensions
will be removed and placed with the bundled version.

Change-Id: If35663d650d3a24f6c5aaeceaf490a24ac008522

Firefox requires that the <div> that includes the Tutorial Panel has its
height set to 100%, otherwise it displays it with a height of 150px (per
the CSS standard).

Change-Id: Id7afd34f4aa058dd5f7b4982d6409941d472d907

Remove references to AI1 from the No Projects Dialog in non-English
language translations.

Change-Id: Ic518901c445cb65fbf6d0ac6b2abcd1276e23264

Remove the Splash Screen Message from OdeMessages. The message now comes
from the data store. The update made to take the message from the data
store neglected to remove the obsolete message from OdeMessages. We
remove it here.

Change-Id: I1ed7e751ce4a3ab150cf4250270b0a544416e9ac

Change-Id: I4811755660bdcbb662f39f719b0cb7ad89b9f12f

Created a modal pop-up for videos and images from the tutorial. Added
changes to separate file to create a new class that extends Frame.

Change-Id: Ie47ce9896aefff2bcebe3cbe64fbe512a1258661

There was an issue where some generic component method blocks did not have the
mutator labeling them as such. This was fixed by explicitly setting the
is_generic mutator along with the other mutators when these blocks are generated
in the drawer.

There was another issue where generic clock add blocks expected a time unit
dropdown which only exists on the instance version of the clock add blocks. This
was fixed by only setting the time unit if the block is not generic, since this
attribute is only used in the instance version of these blocks.

Change-Id: I9fb4bee9bef9fa76e40a240b587ec0b05ba86693

Remove the “Beta” tag from MIT App Inventor. Also remove the “2” as
well.

Change-Id: Ifed997d86e13b5f59a93e736f5caee7299ca1039

If someone attempts to download a packaged project while a new build is
running, we throw in IllegalArgumentException because the built apk is
no longer present (the first thing a new build does is remove the old
apk). This happens often enough that it is one of the top errors being
logged by the Google Cloud Console.

This change eliminates the IllegalArgumentException and instead just
returns a “File Not Found” error (404 error) to the user attempting the
download.

Change-Id: I6fb92e51477c1ad93059cf57a449396d4fea0d7d

Change-Id: I1166ec3b843665338e6fdd8155d1486cce23b7b7

Change-Id: Ic3deb5ee2bfe9ac98f3d0f64b6a98b987e2d36d6

Update the URL to use tinywebdb.appinventor.mit.edu instead of at
appspot.com. This gives us the flexibility to move the service from
Google’s App Engine to a service hosted anywhere, including at MIT.

Change-Id: I1f68f118e20f25740b7667b1efe93b2a1b925ce0

The old version of Google Voice used by the Texting component
redirects to a newer version, breaking the existing
functionality. This change uses a special URL redirection and cookie
provided by Google to legacy Google Voice to work around the
issue. This will likely break again in the future but will buy time to
implement a more robust solution, likely based on a non-Google
product.

Change-Id: Ie519a34fde18204060bd44278f206c1d4c77034b

Change-Id: I110e242808fae3f32a3ae7a4627934accfffb546

Fixes #888

Change-Id: Ib394778a30729c54cfdc787107e542b85cfd3a1a

Change-Id: I62d20ee830af8f88ce816736d71ab78da90fed9d

It was reported that deleting an extension that had been instantiated
results in an "Oops! something broke" message. The issue is caused by
collecting all of the sibling component types in the same package (due
to extension bundles) and accidentally double-counting the extension
type that triggered the deletion. This would result in an attempt to
delete the same component twice resulting in an error because the
component no longer existed.

This commit fixes the problem by checking the sibling name against the
set of to-be-removed classes to ensure that adding a sibling doesn't
duplicate the original class for removal.

Change-Id: Id3d5e17da4e3a5c4e8423ac32fc427cfdcd8ebdc

A user reported when loading an old project with a reference to the
BLE component resulted in an unexpected error. This was due to the
component being present in the Screen1.scm but not in the assets. This
commit makes it so that looking up an undefined component will result
in an error message being reported to the user indicating that the
project in question cannot be loaded.

Change-Id: Ida96802fd8152bf94dc2ac1f481c3acb3810a724

The TutorialURL will be opened in a sidebar in MIT App Inventor. This
permits people to build “template” projects with a tutorial (hosted on
their own site) displayed in a sidebar.

For now, we only allow tutorial urls from http://appinventor.mit.edu/ or
http://appinv.us/.

Change-Id: Ia79eeac6bd3809ce32d0475aa3954ad2c996c776

When running a set of buildservers behind a load balancer there is a
bunching effect that can happen when one buildserver winds up with a
large number of simultaneous builds while other buildservers are
idle. This happens when a buildserver becomes a little busy and as a
result runs slower then the other servers. This increases the likelihood
that it will get more work to do while it is still working on existing
jobs. Which slows it even further which results in more jobs until it
hits its maximum and rejects jobs (while the other buildservers are
idle!).

This change results in the buildserver returning an unhealthy status to
the load balancer (most load balancers can be configured to check a
buildservers health periodically) after it reaches 2/3 of its maximum
load. It then stays in this “DRAINING” state until the load becomes less
then 1/3 at which point the state becomes “UP” again.

Change-Id: Id6be52475151a0208000ced17fe1f2d3f15e7b94

Correct a translation error

Change-Id: I85ef2c21e7ad56daa9aec8efa4e386aaf9fa55ae

This commit fixes the following:

1. Blocks in the mutator workspace did not respond to mouse down
events in Firefox versions earlier than 53.0 due to the lack of a
focus method on SVG elements.

2. Made the splash screens only appear after leaving the project list
(if the user had projects). This prevents a scrolling issue that
occurs when the user has more than one screen's height worth of
projects and the DeckPanel transitions from the project list to the
designer view while the splash screen is being shown. In some cases,
users were unable to scroll to or otherwise access the dialog to
dismiss it.

Change-Id: If368f4c15a55993f95ef17050bb8c0e9493cf40e

Change-Id: If1b6dcd50078f3b214d03fa8bb13032a88b54c96

1. Added more checks for cases where dragging a block from the drawer
results in many blocks being created at the same (x, y)
coordinates. (see mit-cml/blockly master)

2. Fixed issue where error checking did not occur when deleting a
global variable definition block.

3. Fixed issue introduced in extension update that prevented deleting
extensions from projects imported before the update.

Change-Id: I5fdcc89dfdc9f1392948fb8c864b77e45a2f8e3a

This commit addresses two issues with the blockly update:

1. Updates the flyout implementation in Blockly core to store
information about the last created block so that if many create
operations are fired only the first will be applied. This should
prevent a reported issue where many blocks are created at exactly the
same location when dragging from the flyout.

2. Change the z-index of ode-DialogBox to be greater than Blockly's
drag surface z-index so that dialogs that appear during drag
operations will not be occluded by the dialog. Prior to this change,
the block would be above the dialog and prevent the user from being
able to click any button to dismiss the dialog.

Change-Id: I07f19b971860f72ec512dfd9cb39bcb5207f3987

It embeds an obsolete version of the BLE extension.

Change-Id: I63f6da2e537dac86ce7581cb11fbbdd74a5f68d4

This commit provides a progress bar so that the UI gives feedback to
the user when sending large assets (such as extensions) to the
Companion. This commit also adds the _extensions RPC to the Companion
to enable loading of project-specific extensions from the phone's
AppInventor directory rather than all *.jar files present.

Change-Id: I787374dcf2d7c295b2a14e38a72c6c06996ce5d1

This commit fixes some logic bugs in the ComponentServiceImpl changes
for the IOT release related to the inclusion of multiple extensions
per aix and the fact that component.json was renamed to
components.json to reflect this.

This commit also adds unit tests to evaluate the different code paths
through the ComponentServiceImpl to ensure correctness of different
upgrade paths.

Change-Id: I3d8fc8998c9117297c3c8c99bede6371ef016be6