在尝试将touchstart
和mousedown
合并到1个函数中时遇到问题。我使用a
标签作为函数的目标元素,当我触摸或单击标签时可以直接转到链接。
问题是当我touch
标记的中间a
时,链接没有响应。仅当我click
元素或触摸a
标签的边缘并且输出触发mousedown
时有效。
在移动模式下,请尽可能多地单击a
标签的边缘,就像上面图片中的灰色点一样。我创建了一个CodePen示例,以更好地进行外观,测试和理解。
我该如何解决此问题?
class Slider {
constructor($el, paragraph) {
this.$el = $el;
this.paragraph = paragraph;
}
start(e) {
e.preventDefault();
var type = e.type;
if (type === 'touchstart' || type === 'mousedown') this.paragraph.text(this.paragraph.text() + ' ' + type);
return false;
}
apply() {
this.$el.bind('touchstart mousedown', (e) => this.start(e));
}
}
const setSlider = new Slider($('#anchor'), $('.textbox'), {passive: false});
setSlider.apply();
a {
display: block;
width: 100px;
height: 100px;
background-color: orange;
}
<a id="anchor" href="https://google.co.uk">Tap or Click Me</a>
<p class="textbox"></p>
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
==========进展更新=========
我刚刚添加了move
和end
功能,然后我必须单击两次以转到链接的网站。情况越来越糟,不知道如何解决这个问题。
class Slider {
constructor($el, paragraph) {
this.$el = $el;
this.paragraph = paragraph;
}
start(e) {
e.preventDefault();
var type = e.type;
if (type === 'touchstart' || type === 'mousedown') this.paragraph.text(this.paragraph.text() + ' ' + type);
this.$el.bind('touchmove mousemove', (e) => this.move(e));
this.$el.bind('touchend mouseup', (e) => this.end(e));
return false;
}
move(e) {
var type = e.type;
if (type === 'touchstart' || type === 'mousedown') this.paragraph.text(this.paragraph.text() + ' ' + type);
return false;
}
end(e) {
console.log('test');
this.$el.on('click');
this.$el.off('touchstart touchend');
return false;
}
apply() {
this.$el.bind('touchstart || mousedown', (e) => this.start(e));
}
}
const setSlider = new Slider($('#anchor'), $('.textbox'));
setSlider.apply();
========赏金更新后的进度(最新)========
经过数十次尝试,我终于想出了解决上述问题的方法,但遇到了一个新问题,该问题无法立即拖动和重定向。
当我在启动函数中使用preventDefault
时,所有事件都可以正常工作。这种情况的唯一问题是拖动并不能阻止从a
标记重定向链接。无论使用哪种方式调用,单击或拖动,它总是将我发送到网站。
当我不使用preventDefault
时,拖动将不起作用。它仅适用于单击元素。
我的最终目标是防止a
和touchmove
这两个事件重定向mousemove
标记的链接。我在Google上被搜索了很多次,但没有任何线索。
我已经在Codepen中写了一个示例,这是我到目前为止所做的:
class Slider {
constructor($el, paragraph) {
this.$el = $el;
this.paragraph = paragraph;
}
start(e) {
var type = e.type;
if (type === 'touchstart') {
this.paragraph.text(this.paragraph.text() + ' ' + type);
} else if (type === 'mousedown') {
this.paragraph.text(this.paragraph.text() + ' ' + type);
}
}
move(e) {
var type = e.type;
}
end(e) {
var type = e.type;
if (type === 'touchend') {
console.log('touchstart enabled');
} else if (type === 'mouseup') {
console.log('mousedown enabled');
}
}
apply() {
this.$el.bind({
touchstart: (e) => this.start(e),
touchmove: (e) => this.move(e),
touchend: (e) => this.end(e),
mousedown:(e) => this.start(e),
onmousemove: (e) => this.move(e),
mouseup: (e) => this.end(e)
});
}
}
const setSlider = new Slider($('#anchor'), $('.textbox'));
setSlider.apply();
a {
display: block;
width: 100px;
height: 100px;
background-color: orange;
}
<a id="anchor" href="https://google.co.uk">Tap or Click Me</a>
<p class="textbox"></p>
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
答案 0 :(得分:4)
我想我为您找到了解决方案。启用preventDefault并随后为a标签启用可拖动。让我知道这是否适合您。
start(e) {
e.preventDefault();
...//rest of the code
apply() {
$el.draggable("enable");
...//rest of the code
答案 1 :(得分:4)
我想我找到了解决方案。将来,我会为一些努力寻找像我这样的问题的人添加此代码。
if (message.isMentioned(message.mentions.users.first()))
function start(event, etype, condition) {
console.log(etype); // track the type of event
if (!condition) event.preventDefault(); // compare etype(eventType). Set preventDefault if condition is falsy.
items.off('click');
items.on({
['touchmove mousemove']: (event) => move(event, etype, condition),
['touchend mouseup']: end
});
}
function move(event, etype, cnd) {
if (cnd) event.preventDefault();
console.log(cnd); // track the type of event from the condition
items.on('click', function(event) {event.preventDefault();});
}
function end(event) {
items.off('touchmove mousemove touchend mouseup');
}
var items = $('.item a');
items.on('touchstart mousedown', function() {
var eventType = event.type;
var condition = (eventType === 'touchstart' || eventType === 'mousedown');
start(event, eventType, condition);
});
#anchor {
display: block;
width: 100px;
height: 100px;
background-color: orange;
}
.item {
background-color: gray;
}
.item + .item {
margin-top: 10px;
}
.item a {
cursor: pointer;
display: inline-block;
background-color: blue;
color: white;
padding: 9px;
width: 100%;
height: 100%;
}