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ohif-viewer/Packages/ohif-hotkeys/client/classes/HotkeysManager.js
T

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2.0 KiB
JavaScript

import { ReactiveVar } from 'meteor/reactive-var';
import { Tracker } from 'meteor/tracker';
import { OHIF } from 'meteor/ohif:core';
import { HotkeysContext } from 'meteor/ohif:hotkeys/client/classes/HotkeysContext';
export class HotkeysManager {
constructor(retrieveFunction, storeFunction) {
this.contexts = {};
this.currentContextName = null;
this.enabled = new ReactiveVar(true);
Tracker.autorun(() => {
const contextName = OHIF.context.get();
this.switchToContext(contextName);
});
}
disable() {
this.enabled.set(false);
}
enable() {
this.enabled.set(true);
}
getContext(contextName) {
return this.contexts[contextName];
}
getCurrentContext() {
return this.getContext(this.currentContextName);
}
set(contextName, contextDefinitions, extend=false) {
const enabled = this.enabled;
const context = new HotkeysContext(contextName, contextDefinitions, enabled);
const currentContext = this.getCurrentContext();
if (currentContext && currentContext.name === contextName) {
currentContext.destroy();
context.initialize();
}
this.contexts[contextName] = context;
}
register(contextName, command, hotkey) {
if (!command || !hotkey) return;
const context = this.getContext(contextName);
if (!context) {
this.set(contextName, {});
}
context.register(command, hotkey);
}
unsetContext(contextName) {
if (contextName === this.currentContextName) {
this.getCurrentContext().destroy();
}
delete this.contexts[contextName];
}
switchToContext(contextName) {
const currentContext = this.getCurrentContext();
if (currentContext) {
currentContext.destroy();
}
const newContext = this.contexts[contextName];
if (!newContext) return;
this.currentContextName = contextName;
newContext.initialize();
}
}