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- /*=========================
- Keyboard Control
- ===========================*/
- function handleKeyboard(e) {
- if (e.originalEvent) e = e.originalEvent; //jquery fix
- var kc = e.keyCode || e.charCode;
- // Directions locks
- if (!s.params.allowSwipeToNext && (s.isHorizontal() && kc === 39 || !s.isHorizontal() && kc === 40)) {
- return false;
- }
- if (!s.params.allowSwipeToPrev && (s.isHorizontal() && kc === 37 || !s.isHorizontal() && kc === 38)) {
- return false;
- }
- if (e.shiftKey || e.altKey || e.ctrlKey || e.metaKey) {
- return;
- }
- if (document.activeElement && document.activeElement.nodeName && (document.activeElement.nodeName.toLowerCase() === 'input' || document.activeElement.nodeName.toLowerCase() === 'textarea')) {
- return;
- }
- if (kc === 37 || kc === 39 || kc === 38 || kc === 40) {
- var inView = false;
- //Check that swiper should be inside of visible area of window
- if (s.container.parents('.' + s.params.slideClass).length > 0 && s.container.parents('.' + s.params.slideActiveClass).length === 0) {
- return;
- }
- var windowScroll = {
- left: window.pageXOffset,
- top: window.pageYOffset
- };
- var windowWidth = window.innerWidth;
- var windowHeight = window.innerHeight;
- var swiperOffset = s.container.offset();
- if (s.rtl) swiperOffset.left = swiperOffset.left - s.container[0].scrollLeft;
- var swiperCoord = [
- [swiperOffset.left, swiperOffset.top],
- [swiperOffset.left + s.width, swiperOffset.top],
- [swiperOffset.left, swiperOffset.top + s.height],
- [swiperOffset.left + s.width, swiperOffset.top + s.height]
- ];
- for (var i = 0; i < swiperCoord.length; i++) {
- var point = swiperCoord[i];
- if (
- point[0] >= windowScroll.left && point[0] <= windowScroll.left + windowWidth &&
- point[1] >= windowScroll.top && point[1] <= windowScroll.top + windowHeight
- ) {
- inView = true;
- }
- }
- if (!inView) return;
- }
- if (s.isHorizontal()) {
- if (kc === 37 || kc === 39) {
- if (e.preventDefault) e.preventDefault();
- else e.returnValue = false;
- }
- if ((kc === 39 && !s.rtl) || (kc === 37 && s.rtl)) s.slideNext();
- if ((kc === 37 && !s.rtl) || (kc === 39 && s.rtl)) s.slidePrev();
- }
- else {
- if (kc === 38 || kc === 40) {
- if (e.preventDefault) e.preventDefault();
- else e.returnValue = false;
- }
- if (kc === 40) s.slideNext();
- if (kc === 38) s.slidePrev();
- }
- s.emit('onKeyPress', s, kc);
- }
- s.disableKeyboardControl = function () {
- s.params.keyboardControl = false;
- $(document).off('keydown', handleKeyboard);
- };
- s.enableKeyboardControl = function () {
- s.params.keyboardControl = true;
- $(document).on('keydown', handleKeyboard);
- };
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