ohif-viewer/Packages/ohif-viewerbase/client/lib/setActiveViewport.js
2017-03-15 15:47:27 -03:00

73 lines
2.7 KiB
JavaScript

import { Session } from 'meteor/session';
import { $ } from 'meteor/jquery';
import { Random } from 'meteor/random';
import { OHIF } from 'meteor/ohif:core';
import { StudyPrefetcher } from './classes/StudyPrefetcher';
import { displayReferenceLines } from './displayReferenceLines';
/**
* Sets a viewport element active
* @param {node} element DOM element to be activated
*/
export function setActiveViewport(element) {
if (!element) {
OHIF.log.info('setActiveViewport element does not exist');
return;
}
const viewerports = $('.imageViewerViewport');
const viewportIndex = viewerports.index(element);
const jQueryElement = $(element);
OHIF.log.info(`setActiveViewport setting viewport index: ${viewportIndex}`);
// If viewport is not active
if(!jQueryElement.parents('.viewportContainer').hasClass('active')) {
// Trigger an event for compatibility with other systems
jQueryElement.trigger('OHIFBeforeActivateViewport');
}
// When an OHIFActivateViewport event is fired, update the Meteor Session
// with the viewport index that it was fired from.
Session.set('activeViewport', viewportIndex);
const randomId = Random.id();
// Update the Session variable to inform that a viewport is active
Session.set('viewportActivated', randomId);
// Update the Session variable to the UI re-renders
Session.set('LayoutManagerUpdated', randomId);
// Add the 'active' class to the parent container to highlight the active viewport
$('#imageViewerViewports .viewportContainer').removeClass('active');
jQueryElement.parents('.viewportContainer').addClass('active');
// Finally, enable stack prefetching and hide the reference lines from
// the newly activated viewport that has a canvas
if (jQueryElement.find('canvas').length) {
// Cornerstone Tools compare DOM elements (check getEnabledElement cornerstone function)
// so we can't pass a jQuery object as an argument, otherwise it throws an excepetion
const domElement = jQueryElement.get(0);
displayReferenceLines(domElement);
StudyPrefetcher.getInstance().prefetch();
// @TODO Add this to OHIFAfterActivateViewport handler...
if (OHIF.viewer.stackImagePositionOffsetSynchronizer) {
OHIF.viewer.stackImagePositionOffsetSynchronizer.update();
}
}
// Set the div to focused, so keypress events are handled
//$(element).focus();
//.focus() event breaks in FF&IE
jQueryElement.triggerHandler('focus');
// Trigger OHIFAfterActivateViewport event on activated instance
// for compatibility with other systems
jQueryElement.trigger('OHIFAfterActivateViewport');
}