#JsExtensions Plugin This QtCreator plugin enables writing plugins using JavaScript/QML #Overview Plugin allows to easily write simple additions to QtCreator called JEP plugins (*.jep.js files). JEP plugin files are JavaScript files with most of the QtCreator API avaliable. You don't need to clone and build QtCreator to develop QtCreator plugins.

You can get a pre-compiled plugin for Linux(Ubuntu) and Windows here. Just unzip JsExtensions folder to the QtCreator plugins folder (you may need to change the version of dependency Core in JsExtensions.pluginspec file - valid range from 3.0.0 to 3.2.1).

Here are some screenshots of JEP plugin:

Video available here.

There are 5 JEP-Plugins available now. You can manage them via Tools->JsExtensions... menu in QtCreator:

1. RelaxTracker is a green box with "Work" label on Mode panel. This is a QQuickView window which periodically flashes with a red box and a label "Break" - to remind user to have a break.
2. ModePanelButtons places your favorite commands as buttons on Mode panel.
3. Calculator QML based calculator widget from QtCreator examples, which can be shown in Navigation panel (see video).
4. Jenkins shows status of buildson Jenkins server.
5. Weather-box shows current weather conditions see.

#How to write JEP plugins At QtCreator startup JsExtensions plugin scans jep_plugins folder and subfolders for *.jep.js files. It tries to load each *.jep.js file, looks for "initialize" function inside and executes it. We can write minimal jep plugin like this:

function initialize() {
    // write message to General Messages panel with flashing
    messageManager.write("Jep plugin has started!", 512);
}

There are two optional functions extensionsInitialized() and aboutToShutdown() that will be called in JsExtensionsPlugin::extensionsInitialized and JsExtensionsPlugin::aboutToShutdown functions. Also there are four optional variables to manage JEP plugins:

1. pluginDescription - short text description of the plugin (for example "var pluginDescription = "My very usefull plugin";")
2. pluginPriority - numeric variable to change loading order (for example "var pluginPriority = 1;")
3. pluginEnable - bool variable to abort plugin loading (for example "var pluginEnable = false;")
4. pluginTrace - bool variable to trace all wrapper calls to log file (for example "var pluginTrace = true;")

In the global object of the JavaScript/QML environment were injected several objects to access QtCreator API:

1. core - wraps Core::ICore
2. messageManager - wraps Core::MessageManager
3. actionManager - wraps Core::ActionManager
4. modeManager - wraps Core::ModeManager
5. jepAPI - collection of utility functions

In addition to singleton objects there are wrappers for some other classes:

1. Core::ActionContainer
2. Core::Command