63.实现一个拖拽排序
//为了方便借助vue和jquery
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 | <!DOCTYPE html> <html lang= "en" > <head> <meta charset= "UTF-8" > <meta name= "viewport" content= "width=device-width, initial-scale=1.0" > <meta http-equiv= "X-UA-Compatible" content= "ie=edge" > <title>拖拽排序</title> <style> ul, li { list-style: none; padding: 0; margin: 0; } ul { margin: 0 auto; width: 200px; } .item { font-size: 15px; border: 1px solid #eee; border-radius: 4px; padding: 8px 10px; margin: 15px 0; } .item.before { margin-top: 45px; transition: margin-top 0.15s ease- in ; } .item.after { margin-bottom: 45px; transition: margin-bottom 0.15s ease- in ; } </style> </head> <body> <div id= "app" > <ul class = "items" > <li class = "item" v- for = "i in 5" draggable= "true" @dragstart= "dragstart($event)" >{{i}}</li> </ul> </div> <script src= "./libs/jquery.min.js" ></script> <script src= "./libs/vue.js" ></script> <script> new Vue({ el: '#app' , data: { }, methods: { dragstart(e) { let dragTarget = $(e.currentTarget); let overTarget = null ; let allItems = dragTarget.parent().children( '.item' ); let x = null , y = null ; let overTargetSize = { width: null , height: null , } for ( let i = 0; i < allItems.length; i++) { const el = allItems[i]; el.ondragenter = function (evt) { overTarget = $(evt.target) return true ; } el.ondragover = function (evt) { x = evt.offsetX; y = evt.offsetY; // overTargetSize.width = evt.target.offsetWidth; // overTargetSize.height = evt.target.offsetHeight; $(allItems).removeClass( 'after' ).removeClass( 'before' ) if (y > 19) { $(evt.target).addClass( 'after' ); } else if (y <= 19) { $(evt.target).addClass( 'before' ); } } el.ondragend = function (evt) { if (y > 19) { $(overTarget).after(dragTarget) } else if (y <= 19) { $(overTarget).before(dragTarget) } $(allItems).removeClass( 'after' ).removeClass( 'before' ); x = null , y = null ; return false ; } } }, } }) </script> </body> </html> |
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