如何区分鼠标的“点击”和“拖动”

我使用jQuery。点击来处理Raphael图形上的鼠标点击事件，同时，我需要处理鼠标拖动事件，鼠标拖动在Raphael中由鼠标下拉，鼠标上拉和鼠标移动组成。

很难区分点击和拖动，因为点击也包含鼠标下拉和鼠标上拉，我怎么能区分鼠标“点击”和鼠标“拖动”然后在Javascript?

当前回答

其实就是这么简单

var dragged = false
window.addEventListener('mousedown', function () { dragged = false })
window.addEventListener('mousemove', function () { dragged = true })
window.addEventListener('mouseup', function() {
        if (dragged == true) { return }
        console.log("CLICK!! ")
})

老实说，您不希望添加允许小移动的阈值。以上是正确的，正常的，点击所有桌面界面的感觉。

试试吧。

如果愿意，可以轻松添加事件。

2021-02-16 15:36:42

其他回答

如果您希望检查特定元素的单击或拖动行为，则无需监听主体即可执行此操作。

$(document).ready(function(){ let click; $('.owl-carousel').owlCarousel({ items: 1 }); // prevent clicks when sliding $('.btn') .on('mousemove', function(){ click = false; }) .on('mousedown', function(){ click = true; }); // change mouseup listener to '.content' to listen to a wider area. (mouse drag release could happen out of the '.btn' which we have not listent to). Note that the click will trigger if '.btn' mousedown event is triggered above $('.btn').on('mouseup', function(){ if(click){ $('.result').text('clicked'); } else { $('.result').text('dragged'); } }); }); .content{ position: relative; width: 500px; height: 400px; background: #f2f2f2; } .slider, .result{ position: relative; width: 400px; } .slider{ height: 200px; margin: 0 auto; top: 30px; } .btn{ display: flex; align-items: center; justify-content: center; text-align: center; height: 100px; background: #c66; } .result{ height: 30px; top: 10px; text-align: center; } <script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script> <script src="https://cdnjs.cloudflare.com/ajax/libs/OwlCarousel2/2.3.4/owl.carousel.min.js"></script> <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/OwlCarousel2/2.3.4/assets/owl.carousel.min.css" /> <div class="content"> <div class="slider"> <div class="owl-carousel owl-theme"> <div class="item"> <a href="#" class="btn" draggable="true">click me without moving the mouse</a> </div> <div class="item"> <a href="#" class="btn" draggable="true">click me without moving the mouse</a> </div> </div> <div class="result"></div> </div> </div>

2020-03-13 12:36:09

我认为区别在于，在拖拽中，mousedown和mouseup之间有一个鼠标移动，但在点击中没有。

你可以这样做:

const element = document.createElement('div') element.innerHTML = 'test' document.body.appendChild(element) let moved let downListener = () => { moved = false } element.addEventListener('mousedown', downListener) let moveListener = () => { moved = true } element.addEventListener('mousemove', moveListener) let upListener = () => { if (moved) { console.log('moved') } else { console.log('not moved') } } element.addEventListener('mouseup', upListener) // release memory element.removeEventListener('mousedown', downListener) element.removeEventListener('mousemove', moveListener) element.removeEventListener('mouseup', upListener)

2011-05-18 09:03:17

其实就是这么简单

var dragged = false
window.addEventListener('mousedown', function () { dragged = false })
window.addEventListener('mousemove', function () { dragged = true })
window.addEventListener('mouseup', function() {
        if (dragged == true) { return }
        console.log("CLICK!! ")
})

老实说，您不希望添加允许小移动的阈值。以上是正确的，正常的，点击所有桌面界面的感觉。

试试吧。

如果愿意，可以轻松添加事件。

2021-02-16 15:36:42

下面的编码是检测鼠标的移动。

它适用于大多数情况。这也取决于关于如何将mouseevent处理为单击。在JavaScript中，检测非常简单。它不关心如何在鼠标下拉和鼠标上拉之间按住或移动。 Event.detail不会重置为1当你的鼠标移动鼠标下拉和鼠标上拉。如果你需要区分点击和长按，你需要检查事件的差异。时间戳。

// ==== add the code at the begining of your coding ==== let clickStatus = 0; (() => { let screenX, screenY; document.addEventListener('mousedown', (event) => ({screenX, screenY} = event), true); document.addEventListener('mouseup', (event) => (clickStatus = Math.abs(event.screenX - screenX) + Math.abs(event.screenY - screenY) < 3), true); })(); // ==== add the code at the begining of your coding ==== $("#draggable").click(function(event) { if (clickStatus) { console.log(`click event is valid, click count: ${event.detail}`) } else { console.log(`click event is invalid`) } }) <!doctype html> <html lang="en">  <head> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1"> <title>jQuery UI Draggable - Default functionality</title> <link rel="stylesheet" href="//code.jquery.com/ui/1.12.1/themes/base/jquery-ui.css"> <link rel="stylesheet" href="/resources/demos/style.css"> <style> #draggable { width: 150px; height: 150px; padding: 0.5em; } </style> <script src="https://code.jquery.com/jquery-1.12.4.js"></script> <script src="https://code.jquery.com/ui/1.12.1/jquery-ui.js"></script> <script> $( function() { $( "#draggable" ).draggable(); } ); </script> </head> <body> <div id="draggable" class="ui-widget-content"> <p>Drag me around</p> </div> </body> </html>

2021-06-22 10:25:27

很简单，

el = document.getElementById("your_id"); var isDown = false; 埃尔。addEventListener('mousedown'， function () { isDown = true; })；埃尔。addEventListener('mouseup'， function () { isDown = false; })；埃尔。addEventListener('鼠标移动'，函数(){ if (isDown) { //你的代码在这里｝ })；

2022-10-25 07:55:54

如何区分鼠标的“点击”和“拖动”

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