44 lines
1.3 KiB
JavaScript
44 lines
1.3 KiB
JavaScript
Template.previousPresentationGroupButton.helpers({
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/**
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* Check if an earlier stage exists for the user to switch to
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*
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* @returns {boolean} Whether or not an earlier stage exists
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*/
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previousNotAvailable() {
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// Run this helper whenever the ProtocolEngine / LayoutManager has changed
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// If no ProtocolEngine has been defined yet, stop here
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if (!ProtocolEngine) {
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return;
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}
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// Return whether or not the current stage is the first stage
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return ProtocolEngine.stage === 0;
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}
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});
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Template.previousPresentationGroupButton.events({
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/**
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* Switch to the previous Presentation group
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*
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* @param event The click event on the button
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*/
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'click #previousPresentationGroup'(event) {
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// If no ProtocolEngine has been defined yet, do nothing
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if (!ProtocolEngine) {
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return;
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}
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// Stop here if the tool is disabled
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if ($(event.currentTarget).hasClass('disabled')) {
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return;
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}
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// Hide the button's Bootstrap tooltip in case it was shown
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$(event.currentTarget).tooltip('hide');
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// Instruct the ProtocolEngine to switch to the next stage
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ProtocolEngine.previousProtocolStage();
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}
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});
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