Files
junisaber/src/components/menu-controls.js

135 lines
3.7 KiB
JavaScript

var hoveredIndex;
var keyEventsRegistered = false;
var results = null;
const PER_PAGE = 6;
/**
* Use menu with thumb.
*/
AFRAME.registerComponent('menu-controls', {
schema: {
enabled: {default: true},
page: {default: 0},
selectedChallengeId: {default: ''}
},
init: function () {
const el = this.el;
results = document.getElementById('searchResultList').children;
this.goPrevResult = this.goPrevResult.bind(this);
this.goNextResult = this.goNextResult.bind(this);
this.select = this.select.bind(this);
this.unselect = this.unselect.bind(this);
el.addEventListener('thumbupstart', this.goPrevResult);
el.addEventListener('thumbdownstart', this.goNextResult);
el.addEventListener('thumbleftstart', this.unselect);
el.addEventListener('thumbrightstart', this.select);
// When raycaster becomes active again, cancel.
el.addEventListener('mouseenter', evt => {
if (!el.components.cursor.intersectedEl) { return; }
if (el.components.cursor.intersectedEl.closest('#searchResultList')) {
this.cancelMenuControls();
}
});
if (AFRAME.utils.getUrlParameter('debug') && !keyEventsRegistered) {
window.addEventListener('keydown', evt => {
if (evt.keyCode === 37) { this.unselect(); }
if (evt.keyCode === 38) { this.goPrevResult(); }
if (evt.keyCode === 39) { this.select(); }
if (evt.keyCode === 40) { this.goNextResult(); }
});
keyEventsRegistered = true;
}
},
goPrevResult: function () {
if (!this.data.enabled) { return; }
if (hoveredIndex === undefined) {
this.hoverResult(0);
return;
}
if (hoveredIndex > 0) {
if (results[hoveredIndex - 1].dataset.id === this.data.selectedChallengeId) {
if (hoveredIndex - 2 < 0) {
this.goPrevPage();
} else {
this.hoverResult(hoveredIndex - 2);
}
} else {
this.hoverResult(hoveredIndex - 1);
}
} else {
this.goPrevPage();
}
},
goPrevPage: function () {
this.hoverResult(PER_PAGE - 1);
this.el.sceneEl.emit('searchprevpage', null, false);
},
goNextResult: function () {
if (!this.data.enabled) { return; }
if (hoveredIndex === undefined) {
this.hoverResult(0);
return;
}
if (hoveredIndex < PER_PAGE - 1) {
if (results[hoveredIndex + 1].dataset.id === this.data.selectedChallengeId) {
if (hoveredIndex + 2 > PER_PAGE - 1) {
this.goNextPage();
} else {
this.hoverResult(hoveredIndex + 2);
}
} else {
this.hoverResult(hoveredIndex + 1);
}
} else {
this.goNextPage();
}
},
goNextPage: function () {
this.hoverResult(0);
this.el.sceneEl.emit('searchnextpage', null, false);
},
select: function () {
if (!this.data.enabled) { return; }
if (hoveredIndex === undefined) { return; }
this.el.sceneEl.emit('menuchallengeselect', results[hoveredIndex].dataset.id, false);
},
unselect: function () {
if (!this.data.enabled) { return; }
if (this.data.selectedChallengeId) {
this.el.sceneEl.emit('menuchallengeunselect', null, false);
}
},
hoverResult: function (i) {
if (hoveredIndex !== undefined) {
results[hoveredIndex].querySelector('.searchResultBackground')
.emit('mouseleave', null, false);
}
hoveredIndex = i;
results[i].querySelector('.searchResultBackground')
.emit('mouseenter', null, false);
},
cancelMenuControls: function () {
if (hoveredIndex === undefined) { return; }
results[hoveredIndex].querySelector('.searchResultBackground')
.emit('mouseleave', null, false);
hoveredIndex = undefined;
}
});