All files / extensions/cornerstone/src initContextMenu.ts

94.44% Statements 34/36
66.66% Branches 4/6
100% Functions 7/7
94.28% Lines 33/35

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import { eventTarget, EVENTS } from '@cornerstonejs/core';
import { Enums } from '@cornerstonejs/tools';
import { setEnabledElement } from './state';
import { findNearbyToolData } from './utils/findNearbyToolData';
 
const cs3DToolsEvents = Enums.Events;
 
/**
 * Generates a name, consisting of:
 *    * alt when the alt key is down
 *    * ctrl when the cctrl key is down
 *    * shift when the shift key is down
 *    * 'button' followed by the button number (1 left, 3 right etc)
 */
function getEventName(evt) {
  const button = evt.detail.event.which;
  const nameArr = [];
  Iif (evt.detail.event.altKey) {
    nameArr.push('alt');
  }
  Iif (evt.detail.event.ctrlKey) {
    nameArr.push('ctrl');
  }
  if (evt.detail.event.shiftKey) {
    nameArr.push('shift');
  }
  nameArr.push('button');
  nameArr.push(button);
  return nameArr.join('');
}
 
function initContextMenu({
  cornerstoneViewportService,
  customizationService,
  commandsManager,
}): void {
  /*
   * Run the commands associated with the given button press,
   * defaults on button1 and button2
   */
  const cornerstoneViewportHandleEvent = (name, evt) => {
    const customizations = customizationService.getCustomization(
      'cornerstoneViewportClickCommands'
    );
 
    const toRun = customizations[name];
 
    if (!toRun) {
      return;
    }
 
    // only find nearbyToolData if required, for the click (which closes the context menu
    // we don't need to find nearbyToolData)
    let nearbyToolData = null;
    if (toRun.some(command => command.commandOptions?.requireNearbyToolData)) {
      nearbyToolData = findNearbyToolData(commandsManager, evt);
    }
 
    const options = {
      nearbyToolData,
      event: evt,
    };
    commandsManager.run(toRun, options);
  };
 
  const cornerstoneViewportHandleClick = evt => {
    const name = getEventName(evt);
    cornerstoneViewportHandleEvent(name, evt);
  };
 
  function elementEnabledHandler(evt) {
    const { viewportId, element } = evt.detail;
    const viewportInfo = cornerstoneViewportService.getViewportInfo(viewportId);
    if (!viewportInfo) {
      return;
    }
    // TODO check update upstream
    setEnabledElement(viewportId, element);
 
    element.addEventListener(cs3DToolsEvents.MOUSE_CLICK, cornerstoneViewportHandleClick);
  }
 
  function elementDisabledHandler(evt) {
    const { element } = evt.detail;
 
    element.removeEventListener(cs3DToolsEvents.MOUSE_CLICK, cornerstoneViewportHandleClick);
  }
 
  eventTarget.addEventListener(EVENTS.ELEMENT_ENABLED, elementEnabledHandler.bind(null));
 
  eventTarget.addEventListener(EVENTS.ELEMENT_DISABLED, elementDisabledHandler.bind(null));
}
 
export default initContextMenu;