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Qode is a lightly modified fork of Node.js that allows injecting a third party event loop alongside Node's event loop. It is designed to be used together with `@nodegui/nodegui` and Qt

nodegui.org/

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Node.js

=======

Qode

Qode is a lightly modified fork of Node.js that allows Node's event loop to be merged with Qt's or any other Gui event loop. It is designed to be used together with @nodegui/nodegui. Qode achieves this by allowing message loop injection via a NodeJS addon.

logo

Changes in v18.12.1

Upgrade to Node v18.12.1. No other changes.

Changes in v16.x

From version 16.x - qode will have the same version number as that of underlying node.

This is a complete restructure of qode's source code.

It makes it easier to support all the architectures supported by nodejs

Qode source code is now much more closer to node's source code. Making it easier to upgrade node.js.

No breaking changes.

Changes in v2.0

In version 2.0, Qode no longer depends on Qt as a dependency.

This makes it easier to upgrade Qt and also allows devs to use their own version of Qt. Technically this means its possible to integrate with another Gui system (not Qt) aswell.

Another benefit is that it helps in avoiding issues with 3rd party plugin development because of qt version mismatch.

Now, Qode essentially becomes nodejs + <some code changes to allow message loop injection via an addon>

Note:

Qode is published as a NPM module as @nodegui/qode. For more details on the npm module visit: qode/npm/README.md The changes to node.js are visible in the commit name qode patch in this branch

Changes to Node.js

  • The event loop remains the same as that of NodeJs until a new Gui message loop is injected via the qode api. See below for details on the api.
  • When a Gui message loop is injected, qode will use it as the primary event loop and will process NodeJs requests on the main thread as an when it arrives by listening to the libuv's events.
  • Note: Make sure to use a binary compatible version of nodejs when using alongside qode. For example if qode has node version of 16.x then use Node version 16.x when developing apps with qode.

Currently only 64bit OS's are supported.

Steps for Windows

====================

Use Powershell in windows (possibly with git bash or similar installed)

  1. Do a git clone for this repo

  2. Install Visual Studio Community 2019. Download the Visual studio Installer and install Visual Studio Community 2019. Make sure to choose "Desktop development with C++ " workload and install it.

  3. Building Qode. Run node ./qode/build.js

Steps for Linux

==================

  1. Do a git clone for this repo

  2. Install GTK headers and patchelf:

sudo apt install libgtk-3-dev patchelf
  1. Building Qode. Run node ./qode/build.js

Steps for MacOS

==================

  1. Do a git clone for this repo

  2. Building Qode. Run node ./qode/build.js

If you want to build for Apple Silicon Macs Make sure you have python 3.8.10 installed

node ./qode/build.js

Common build errors:

  1. if you get an error similar to:

     fatal error: gtk/gtk.h: No such file or directory
 #include <gtk/gtk.h>

    Make sure you have installed gtk headers as mentioned above.

  2. If you get an error similar to: ./qode: error while loading shared libraries: cannot open shared object file: No such file or directory.

    Check the shared libraries used by qode by running ldd ./qode. Then you can provide the path where qode could find the libraries like this:

    LD_LIBRARY_PATH=<path_to_lib>:$LD_LIBRARY_PATH ./qode

And make sure you have installed gtk3 headers also for time being.

  1. Yoga crashes when using with Qode. Make sure that node version you are using to compile nodegui is binary compatible with node version of Qode. or make sure you compile addons with Qode instead of Node.

Usage

The prebuilt binaries can be found in the Releases page, modules installed by npm can be used directly in qode. Qode can also be installed via npm.

Note that it is strong recommended to install the official Node.js with the same version of qode, otherwise native modules installed by npm may not work correctly in qode.

Build

TARGET_ARCH=[x64|ia32] HOST_ARCH=[x64|ia32] node ./qode/build.js

or

`cmd /C "set TARGET_ARCH=[x64|ia32] && set HOST_ARCH=[x64|ia32] && node ./qode/build.js"`

PS: I havent tested ia32 builds

The output of the build will be present at node/out/Release/qode

Configurations (Available from qode v1.0.3)

Additional configurations can be done via a qode.json file in the same directory as that of the qode binary.

qode.json

{
  distPath: "./dist/index.js"; // This will try to load the index.js inside dist folder when qode.exe is run.
}

Message Loop injection api

The NodeGui core addon uses the following api exposed by qode binary to inject Qt's event loop into nodejs

https://github.com/nodegui/node/blob/43e31129fc27f738b171dca3d744a0e4245dcc6d/src/qode_shared.h#L12

#pragma once
// From Qode headers
namespace qode {
    extern int qode_argc;
    extern char **qode_argv;
    typedef int (*QodeCustomRunLoopFunc)();
    extern void InjectCustomRunLoop(QodeCustomRunLoopFunc customRunLoop);
}  // namespace qode

Building for M1 Mac

In order to build for M1 mac

Make sure you have python 3.8.10 installed

and then do:

node ./qode/build.js

License

The MIT license.

Thanks

The idea of Qode is derived from yode and electron. Infact Qode is a heavily modified fork of yode. I thank Cheng Zhao for yode and many of the ideas behind integration of GUI based libraries with NodeJS.

Qode - Node version table

Qode Node
v2.1.0 v14.2.0
v2.1.1 v14.17.0
v16.4.0 v16.4.0
v18.12.1 v18.12.1

Node.js README

Node.js

Node.js is an open-source, cross-platform JavaScript runtime environment.

For information on using Node.js, see the Node.js website.

The Node.js project uses an open governance model. The OpenJS Foundation provides support for the project.

This project has a Code of Conduct.

Table of contents

Support

Looking for help? Check out the instructions for getting support.

Release types

  • Current: Under active development. Code for the Current release is in the branch for its major version number (for example, v15.x). Node.js releases a new major version every 6 months, allowing for breaking changes. This happens in April and October every year. Releases appearing each October have a support life of 8 months. Releases appearing each April convert to LTS (see below) each October.
  • LTS: Releases that receive Long Term Support, with a focus on stability and security. Every even-numbered major version will become an LTS release. LTS releases receive 12 months of Active LTS support and a further 18 months of Maintenance. LTS release lines have alphabetically-ordered code names, beginning with v4 Argon. There are no breaking changes or feature additions, except in some special circumstances.
  • Nightly: Code from the Current branch built every 24-hours when there are changes. Use with caution.

Current and LTS releases follow semantic versioning. A member of the Release Team signs each Current and LTS release. For more information, see the Release README.

Download

Binaries, installers, and source tarballs are available at https://nodejs.org/en/download/.

Current and LTS releases

https://nodejs.org/download/release/

The latest directory is an alias for the latest Current release. The latest-codename directory is an alias for the latest release from an LTS line. For example, the latest-fermium directory contains the latest Fermium (Node.js 14) release.

Nightly releases

https://nodejs.org/download/nightly/

Each directory name and filename contains a date (in UTC) and the commit SHA at the HEAD of the release.

API documentation

Documentation for the latest Current release is at https://nodejs.org/api/. Version-specific documentation is available in each release directory in the docs subdirectory. Version-specific documentation is also at https://nodejs.org/download/docs/.

Verifying binaries

Download directories contain a SHASUMS256.txt file with SHA checksums for the files.

To download SHASUMS256.txt using curl:

$ curl -O https://nodejs.org/dist/vx.y.z/SHASUMS256.txt

To check that a downloaded file matches the checksum, run it through sha256sum with a command such as:

$ grep node-vx.y.z.tar.gz SHASUMS256.txt | sha256sum -c -

For Current and LTS, the GPG detached signature of SHASUMS256.txt is in SHASUMS256.txt.sig. You can use it with gpg to verify the integrity of SHASUMS256.txt. You will first need to import the GPG keys of individuals authorized to create releases. To import the keys:

$ gpg --keyserver hkps://keys.openpgp.org --recv-keys 4ED778F539E3634C779C87C6D7062848A1AB005C

See Release keys for a script to import active release keys.

Next, download the SHASUMS256.txt.sig for the release:

$ curl -O https://nodejs.org/dist/vx.y.z/SHASUMS256.txt.sig

Then use gpg --verify SHASUMS256.txt.sig SHASUMS256.txt to verify the file's signature.

Building Node.js

See BUILDING.md for instructions on how to build Node.js from source and a list of supported platforms.

Security

For information on reporting security vulnerabilities in Node.js, see SECURITY.md.

Contributing to Node.js

Current project team members

For information about the governance of the Node.js project, see GOVERNANCE.md.

TSC (Technical Steering Committee)

Emeriti

TSC emeriti

Collaborators

Emeriti

Collaborator emeriti

Collaborators follow the Collaborator Guide in maintaining the Node.js project.

Triagers

Release keys

Primary GPG keys for Node.js Releasers (some Releasers sign with subkeys):

To import the full set of trusted release keys (including subkeys possibly used to sign releases):

gpg --keyserver hkps://keys.openpgp.org --recv-keys 4ED778F539E3634C779C87C6D7062848A1AB005C
gpg --keyserver hkps://keys.openpgp.org --recv-keys 141F07595B7B3FFE74309A937405533BE57C7D57
gpg --keyserver hkps://keys.openpgp.org --recv-keys 74F12602B6F1C4E913FAA37AD3A89613643B6201
gpg --keyserver hkps://keys.openpgp.org --recv-keys 61FC681DFB92A079F1685E77973F295594EC4689
gpg --keyserver hkps://keys.openpgp.org --recv-keys 8FCCA13FEF1D0C2E91008E09770F7A9A5AE15600
gpg --keyserver hkps://keys.openpgp.org --recv-keys C4F0DFFF4E8C1A8236409D08E73BC641CC11F4C8
gpg --keyserver hkps://keys.openpgp.org --recv-keys 890C08DB8579162FEE0DF9DB8BEAB4DFCF555EF4
gpg --keyserver hkps://keys.openpgp.org --recv-keys C82FA3AE1CBEDC6BE46B9360C43CEC45C17AB93C
gpg --keyserver hkps://keys.openpgp.org --recv-keys 108F52B48DB57BB0CC439B2997B01419BD92F80A

See Verifying binaries for how to use these keys to verify a downloaded file.

Other keys used to sign some previous releases

Security release stewards

When possible, the commitment to take slots in the security release steward rotation is made by companies in order to ensure individuals who act as security stewards have the support and recognition from their employer to be able to prioritize security releases. Security release stewards manage security releases on a rotation basis as outlined in the security release process.

License

Node.js is available under the MIT license. Node.js also includes external libraries that are available under a variety of licenses. See LICENSE for the full license text.

About

Qode is a lightly modified fork of Node.js that allows injecting a third party event loop alongside Node's event loop. It is designed to be used together with `@nodegui/nodegui` and Qt

nodegui.org/

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