ohif-viewer/docs/latest/extensions/modules/commands.md
Danny Brown 02572b4928
docs: extensions (#1258)
* docs: process docs to include UX Stories requirement

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* Services init

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* docs: GIF of notification

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* docs: simplify ui services call out in the general services docs

* docs: tips and tricks for UI services

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* docs: extensions overview + diagram

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2019-12-06 16:31:46 -05:00

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Markdown

# Module: Commands
The Commands Module allows us to register one or more commands scoped to
specific contexts. Commands can be run by [hotkeys][#], [toolbar buttons][#],
and any registered custom react component (like a [viewport][#] or [panel][#]).
Here is a simple example commands module:
```js
{
getCommandsModule() {
return {
actions: {
speak: ({ viewports, words }) => {
console.log(viewports, words);
},
},
definitions: {
rotateViewportCW: {
commandFn: actions.rotateViewport,
storeContexts: ['viewports'],
options: { rotation: 90 }
},
rotateViewportCCW: {
commandFn: actions.rotateViewport,
storeContexts: ['viewports'],
options: { rotation: -90 },
context: 'ACTIVE_VIEWER::CORNERSTONE'
},
},
defaultContext: 'VIEWER'
}
}
}
```