我使用 Codrops 文章/实验创建了一个交互式环境,供当地团体在他们的会议上使用。这样做的问题是默认交互不是很直观。该模板使用 Flickity.js 和看起来像 classie.js 的东西来创建这个我遇到问题的滑动界面。
该页面可以在这里找到:
问题:激活全视图的唯一方法是单击 html 元素:
<h2 class=".stack-title">
// 堆栈激活后,您应该能够通过单击第一个 .stack-item 来激活完整视图,该 .stack-item 用于在其下方创建缩略图。这整个 div 应该是可点击的。用户在屏幕上到处触摸,而不是实际单击所需操作的标题。我希望这是有道理的。
换句话说,您应该能够单击堆栈标题和每个堆栈标题下方的图像,以将堆栈拉入屏幕上的完整视图模式。然后单击 x 或屏幕上的任何其他位置以关闭完整视图。
以下位于 main.js 和我找到的用于创建我所指的事件的参考。
//
function initEvents() {
stacks.forEach(function(stack) {
var titleEl = stack.querySelector('.stack-title');
// expand/close the stack
titleEl.addEventListener('click', function(ev) {
ev.preventDefault();
if( classie.has(stack, 'is-selected') ) { // current stack
if( classie.has(bodyEl, 'view-full') ) { // stack is opened
var closeStack = function() {
classie.remove(bodyEl, 'move-items');
onEndTransition(slider, function() {
classie.remove(bodyEl, 'view-full');
bodyEl.style.height = '';
flkty.bindDrag();
flkty.options.accessibility = true;
canMoveHeroImage = true;
});
};
// if the user scrolled down, let's first scroll all up before closing the stack.
var scrolled = scrollY();
if( scrolled > 0 ) {
smooth_scroll_to(isFirefox ? docElem : bodyEl || docElem, 0, 500).then(function() {
closeStack();
});
}
else {
closeStack();
}
}
else if( canOpen ) { // stack is closed
canMoveHeroImage = false;
classie.add(bodyEl, 'view-full');
setTimeout(function() { classie.add(bodyEl, 'move-items'); }, 25);
bodyEl.style.height = stack.offsetHeight + 'px';
flkty.unbindDrag();
flkty.options.accessibility = false;
}
}
else if( classie.has(stack, 'stack-prev') ) {
flkty.previous(true);
}
else if( classie.has(stack, 'stack-next') ) {
flkty.next(true);
}
});
titleEl.addEventListener('mouseenter', function(ev) {
if( classie.has(stack, 'is-selected') ) {
canMoveHeroImage = false;
imghero.style.WebkitTransform = 'perspective(1000px) translate3d(0,0,0) rotate3d(1,1,1,0deg)';
imghero.style.transform = 'perspective(1000px) translate3d(0,0,0) rotate3d(1,1,1,0deg)';
}
});
titleEl.addEventListener('mouseleave', function(ev) {
// if current stack and it's not opened..
if( classie.has(stack, 'is-selected') && !classie.has(bodyEl, 'view-full') ) {
canMoveHeroImage = true;
}
});
});
window.addEventListener('mousemove', throttle(function(ev) {
if( !canMoveHeroImage ) return false;
var xVal = -1/(win.height/2)*ev.clientY + 1,
yVal = 1/(win.width/2)*ev.clientX - 1,
transX = 20/(win.width)*ev.clientX - 10,
transY = 20/(win.height)*ev.clientY - 10,
transZ = 100/(win.height)*ev.clientY - 50;
imghero.style.WebkitTransform = 'perspective(1000px) translate3d(' + transX + 'px,' + transY + 'px,' + transZ + 'px) rotate3d(' + xVal + ',' + yVal + ',0,2deg)';
imghero.style.transform = 'perspective(1000px) translate3d(' + transX + 'px,' + transY + 'px,' + transZ + 'px) rotate3d(' + xVal + ',' + yVal + ',0,2deg)';
}, 100));
// window resize
window.addEventListener( 'resize', throttle(function(ev) {
// recalculate window width/height
win = { width: window.innerWidth, height: window.innerHeight };
// reset body height if stack is opened
if( classie.has(bodyEl, 'view-full') ) { // stack is opened
bodyEl.style.height = stacks[flkty.selectedIndex].offsetHeight + 'px';
}
}, 50));
// Flickity events:
flkty.on('cellSelect', function() {
canOpen = false;
classie.remove(bodyEl, 'item-clickable');
var prevStack = stacksWrapper.querySelector('.stack-prev'),
nextStack = stacksWrapper.querySelector('.stack-next'),
selidx = flkty.selectedIndex,
cellsCount = flkty.cells.length,
previdx = selidx > 0 ? selidx - 1 : cellsCount - 1;
nextidx = selidx < cellsCount - 1 ? selidx + 1 : 0;
if( prevStack ) {
classie.remove(prevStack, 'stack-prev');
}
if( nextStack ) {
classie.remove(nextStack, 'stack-next');
}
classie.add(stacks[previdx], 'stack-prev');
classie.add(stacks[nextidx], 'stack-next');
});
flkty.on('dragStart', function() {
canOpen = false;
classie.remove(bodyEl, 'item-clickable');
});
flkty.on('settle', function() {
classie.add(bodyEl, 'item-clickable');
canOpen = true;
});
}
init();
})();