ClipCC is a powerful scratch fork which adds some useful features. And it migrates a lot of features from legacy ClipCC.

What's this

ClipCC is a powerful scratch fork which adds some useful features such as new extension system, high-quality pen, stage layout and more.

Special thanks for Ble Studio!

Useful Links

Online Editor(Stable)

Online Editor(Canary)

Offline Editor

What's left to be added

• Hide blocks
• High-quality pen
• JIT support
• Blockly optimization
• custom stage size

Building

Please note! Please make sure you have installed Git and Node.js before building.

In your own node environment/application:

yarn install https://github.com/Clipteam/clipcc-gui.git

If you want to edit/play yourself:

git clone https://github.com/Clipteam/clipcc-gui.git
cd clipcc-gui
yarn install

Open a Command Prompt or Terminal in the repository and run:

yarn start

Then go to http://localhost:8601/ - the playground outputs the default GUI component.

Developing alongside other Scratch repositories

Getting another repo to point to this code

If you wish to develop clipcc-gui alongside other scratch repositories that depend on it, you may wish to have the other repositories use your local clipcc-gui build instead of fetching the current production version of the clipcc-gui that is found by default using yarn install.

Here's how to link your local clipcc-gui code to another project's node_modules/clipcc-gui.

Configuration

1. In your local clipcc-gui repository's top level:

   1. Make sure you have run yarn install
   2. Build the dist directory by running BUILD_MODE=dist yarn run build
   3. Establish a link to this repository by running yarn link

2. From the top level of each repository (such as scratch-www) that depends on clipcc-gui:

   1. Make sure you have run yarn install
   2. Run yarn link clipcc-gui
   3. Build or run the repositoriy

Using yarn run watch

Instead of BUILD_MODE=dist yarn run build, you can use BUILD_MODE=dist yarn run watch instead. This will watch for changes to your clipcc-gui code, and automatically rebuild when there are changes. Sometimes this has been unreliable; if you are having problems, try going back to BUILD_MODE=dist yarn run build until you resolve them.

Oh no! It didn't work!

If you can't get linking to work right, try:

• Follow the recipe above step by step and don't change the order. It is especially important to run yarn install before yarn link, because installing after the linking will reset the linking.
• Make sure the repositories are siblings on your machine's file tree, like .../.../MY_SCRATCH_DEV_DIRECTORY/clipcc-gui/ and .../.../MY_SCRATCH_DEV_DIRECTORY/scratch-www/.
• Consistent node.js version: If you have multiple Terminal tabs or windows open for the different Scratch repositories, make sure to use the same node version in all of them.
• If nothing else works, unlink the repositories by running yarn unlink in both, and start over.

Testing

Documentation

You may want to review the documentation for Jest and Enzyme as you write your tests.

See jest cli docs for more options.

Running tests

NOTE: If you're a Windows user, please run these scripts in Windows cmd.exe instead of Git Bash/MINGW64.

Before running any test, make sure you have run yarn install from this (clipcc-gui) repository's top level.

Main testing command

To run linter, unit tests, build, and integration tests, all at once:

yarn test

Running unit tests

To run unit tests in isolation:

yarn run test:unit

To run unit tests in watch mode (watches for code changes and continuously runs tests):

yarn run test:unit -- --watch

You can run a single file of integration tests (in this example, the button tests):

$(yarn bin)/jest --runInBand test/unit/components/button.test.jsx

Running integration tests

Integration tests use a headless browser to manipulate the actual HTML and javascript that the repo produces. You will not see this activity (though you can hear it when sounds are played!).

Note that integration tests require you to first create a build that can be loaded in a browser:

yarn run build

Then, you can run all integration tests:

yarn run test:integration

Or, you can run a single file of integration tests (in this example, the backpack tests):

$(yarn bin)/jest --runInBand test/integration/backpack.test.js

If you want to watch the browser as it runs the test, rather than running headless, use:

USE_HEADLESS=no $(yarn bin)/jest --runInBand test/integration/backpack.test.js

Troubleshooting

Ignoring optional dependencies

When running yarn install, you can get warnings about optionsl dependencies:

npm WARN optional Skipping failed optional dependency /chokidar/fsevents:
npm WARN notsup Not compatible with your operating system or architecture: [email protected]

You can suppress them by adding the no-optional switch:

yarn install --no-optional

Further reading: Stack Overflow

Resolving dependencies

When installing for the first time, you can get warnings that need to be resolved:

npm WARN [email protected] requires a peer of babel-eslint@^8.0.1 but none was installed.
npm WARN [email protected] requires a peer of eslint@^4.0 but none was installed.
npm WARN [email protected] requires a peer of react-intl-redux@^0.7 but none was installed.
npm WARN [email protected] requires a peer of react-responsive@^4 but none was installed.

You can check which versions are available:

yarn view react-intl-redux@0.* version

You will need to install the required version:

yarn install  --no-optional --save-dev react-intl-redux@^0.7

The dependency itself might have more missing dependencies, which will show up like this:

user@machine:~/sources/scratch/clipcc-gui (491-translatable-library-objects)$ yarn install  --no-optional --save-dev react-intl-redux@^0.7
[email protected] /media/cuideigin/Linux/sources/scratch/clipcc-gui
├── [email protected]
└── UNMET PEER DEPENDENCY [email protected]

You will need to install those as well:

yarn install  --no-optional --save-dev react-responsive@^5.0.0

Further reading: Stack Overflow

Transitions

These are names for the action which causes a state change. Some examples are:

• START_FETCHING_NEW,
• DONE_FETCHING_WITH_ID,
• DONE_LOADING_VM_WITH_ID,
• SET_PROJECT_ID,
• START_AUTO_UPDATING,

How transitions relate to loading states

Like this diagram of the project state machine shows, various transition actions can move us from one loading state to another:

Note: for clarity, the diagram above excludes states and transitions relating to error handling.

Example

Here's an example of how states transition.

Suppose a user clicks on a project, and the page starts to load with URL https://scratch.mit.edu/projects/123456 .

Here's what will happen in the project state machine:

1. When the app first mounts, the project state is NOT_LOADED.
2. The SET_PROJECT_ID redux action is dispatched (from src/lib/project-fetcher-hoc.jsx), with projectId set to 123456. This transitions the state from NOT_LOADED to FETCHING_WITH_ID.
3. The FETCHING_WITH_ID state. In src/lib/project-fetcher-hoc.jsx, the projectId value 123456 is used to request the data for that project from the server.
4. When the server responds with the data, src/lib/project-fetcher-hoc.jsx dispatches the DONE_FETCHING_WITH_ID action, with projectData set. This transitions the state from FETCHING_WITH_ID to LOADING_VM_WITH_ID.
5. The LOADING_VM_WITH_ID state. In src/lib/vm-manager-hoc.jsx, we load the projectData into Scratch's virtual machine ("the vm").
6. When loading is done, src/lib/vm-manager-hoc.jsx dispatches the DONE_LOADING_VM_WITH_ID action. This transitions the state from LOADING_VM_WITH_ID to SHOWING_WITH_ID
7. The SHOWING_WITH_ID state. Now the project appears normally and is playable and editable.

Contact us

You can contact us by sending an email to [email protected]. We are looking forward to you feedback.

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