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