이 문서의 예에서는 양식에 입력할 때 텍스트가 위쪽으로 슬라이드되도록 요청하는 효과를 jquery가 구현하는 방법을 설명합니다. 참고할 수 있도록 모든 사람과 공유하세요. 세부 내용은 다음과 같습니다.
jQuery를 기반으로 구현된 양식 입력 상자 프롬프트 효과는 다음과 같습니다. 입력이 없으면 입력 상자에 프롬프트 텍스트가 표시되고 텍스트를 입력하기 위해 텍스트 상자를 클릭하면 프롬프트 텍스트가 미끄러져 나옵니다. 입력창이 매우 이상해 보입니다. 성격도 매우 똑똑하고, 사용자 경험도 비교적 좋으며, CSS3의 일부 속성을 사용하므로 테스트할 때는 IE9 상위 버전이나 Chrome과 같은 웹 브라우저를 사용해 보시기 바랍니다. 그리고 파이어폭스.
런닝 효과 스크린샷은 다음과 같습니다.
구체적인 코드는 다음과 같습니다.
<!doctype html> <html> <head> <meta charset="utf-8"> <title>jQuery人性化表单标签提示</title> <script type="text/javascript" src="jquery-1.6.2.min.js"></script> <script type="text/javascript"> !function($){ var defaults = { position: "top", animationTime: 500, easing: "ease-in-out", offset: 20, hidePlaceholderOnFocus: true }; $.fn.animateLabel = function(settings, btn) { var position = btn.data("position") || settings.position, posx = 0, posy = 0; $(this).css({ "left": "auto", "right": "auto", "position": "absolute", "-webkit-transition": "all " + settings.animationTime + "ms " + settings.easing, "-moz-transition": "all " + settings.animationTime + "ms " + settings.easing, "-ms-transition": "all " + settings.animationTime + "ms " + settings.easing, "transition": "all " + settings.animationTime + "ms " + settings.easing }); switch (position) { case 'top': posx = 0; posy = ($(this).height() + settings.offset) * -1; $(this).css({ "top": "0", "opacity": "1", "-webkit-transform": "translate3d(" + posx + ", " + posy + "px, 0)", "-moz-transform": "translate3d(" + posx + ", " + posy + "px, 0)", "-ms-transform": "translate3d(" + posx + ", " + posy + "px, 0)", "transform": "translate3d(" + posx + ", " + posy + "px, 0)" }); break; case 'bottom': posx = 0; posy = ($(this).height() + settings.offset); $(this).css({ "bottom": "0", "opacity": "1", "-webkit-transform": "translate3d(" + posx + ", " + posy + "px, 0)", "-moz-transform": "translate3d(" + posx + ", " + posy + "px, 0)", "-ms-transform": "translate3d(" + posx + ", " + posy + "px, 0)", "transform": "translate3d(" + posx + ", " + posy + "px, 0)" }); break; case 'left': posx = ($(this).width() + settings.offset) * -1; posy = 0; $(this).css({ "left": 0, "top": 0, "opacity": "1", "-webkit-transform": "translate3d(" + posx + "px, " + posy + "px, 0)", "-moz-transform": "translate3d(" + posx + "px, " + posy + "px, 0)", "-ms-transform": "translate3d(" + posx + "px, " + posy + "px, 0)", "transform": "translate3d(" + posx + "px, " + posy + "px, 0)" }); break; case 'right': posx = $(this).width() + settings.offset; posy = 0; $(this).css({ "right": 0, "top": 0, "opacity": "1", "-webkit-transform": "translate3d(" + posx + "px, " + posy + "px, 0)", "-moz-transform": "translate3d(" + posx + "px, " + posy + "px, 0)", "-ms-transform": "translate3d(" + posx + "px, " + posy + "px, 0)", "transform": "translate3d(" + posx + "px, " + posy + "px, 0)" }); break; } } $.fn.removeAnimate = function(settings, btn) { var position = btn.data("position") || settings.position, posx = 0, posy = 0; $(this).css({ "top": "0", "opacity": "0", "-webkit-transform": "translate3d(" + posx + ", " + posy + "px, 0)", "-moz-transform": "translate3d(" + posx + ", " + posy + "px, 0)", "-ms-transform": "translate3d(" + posx + ", " + posy + "px, 0)", "transform": "translate3d(" + posx + ", " + posy + "px, 0)" }); } $.fn.label_better = function(options){ var settings = $.extend({}, defaults, options), el = $(this), triggerIn = "focus", triggerOut = "blur"; if(settings.easing == "bounce") settings.easing = "cubic-bezier(0.175, 0.885, 0.420, 1.310)" el.each(function( index, value ) { var btn = $(this), position = btn.data("position") || settings.position; btn.wrapAll("<div class='lb_wrap' style='position:relative; display: inline;'></div>") if( btn.val().length > 0) { var text = btn.data("new-placeholder") || btn.attr("placeholder"); $("<div class='lb_label " + position + "'>"+ text + "</div>").css("opacity", "0").insertAfter(btn).animateLabel(settings, btn); } btn.bind(triggerIn, function() { if(btn.val().length < 1) { var text = btn.data("new-placeholder") || btn.attr("placeholder"), position = btn.data("position") || settings.position; $("<div class='lb_label " + position + "'>"+ text + "</div>").css("opacity", "0").insertAfter(btn).animateLabel(settings, btn); } if (settings.hidePlaceholderOnFocus == true) { btn.data("default-placeholder", btn.attr("placeholder")) btn.attr("placeholder", "") } btn.parent().find(".lb_label").addClass("active"); }).bind(triggerOut, function() { if(btn.val().length < 1) { btn.parent().find(".lb_label").bind("transitionend webkitTransitionEnd oTransitionEnd MSTransitionEnd", function(){ $(this).remove(); }).removeAnimate(settings, btn) } if (settings.hidePlaceholderOnFocus == true) { btn.attr("placeholder", btn.data("default-placeholder")) btn.data("default-placeholder", "") } btn.parent().find(".lb_label").removeClass("active"); }); }); } }(window.jQuery); </script> <style> html { height: 100%; } body { background: #272D30; padding: 0; text-align: center; font-family: 'open sans'; position: relative; margin: 0; height: 100%; } .wrapper { height: auto !important; height: 100%; margin: 0 auto; overflow: hidden; } a { text-decoration: none; } h1, h2 { width: 100%; float: left; } h1 { margin-top: 100px; color: #fff; text-shadow: 0 1px 5px rgba(0,0,0,0.5); margin-bottom: 5px; font-size: 70px; letter-spacing: -4px; } h2 { color: #5F7591; font-weight: bold; text-shadow: 0 1px 5px rgba(0,0,0,0.5); margin-top: 0; margin-bottom: 10px; } .pointer { color: #9b59b6; font-family: 'Pacifico', cursive; font-size: 30px; margin-top: 15px; } pre { margin: 80px auto; } pre code { padding: 35px; border-radius: 5px; font-size: 15px; background: rgba(0,0,0,0.1); border: rgba(0,0,0,0.05) 5px solid; max-width: 500px; } .main { float: left; width: 100%; margin: 0 auto; } .main h1 { padding:20px 50px; float: left; width: 100%; font-size: 60px; box-sizing: border-box; -webkit-box-sizing: border-box; -moz-box-sizing: border-box; font-weight: 100; margin: 0; padding-top: 25px; font-family: 'Pacifico'; letter-spacing: 2px; } .main h1.demo1 { background: #1ABC9C; } .reload.bell { font-size: 12px; padding: 20px; width: 45px; text-align: center; height: 47px; border-radius: 50px; -webkit-border-radius: 50px; -moz-border-radius: 50px; } .reload.bell #notification { font-size: 25px; line-height: 140%; } .reload, .btn{ display: inline-block; border: 4px solid #A2261E; border-radius: 5px; -moz-border-radius: 5px; -webkit-border-radius: 5px; background: #CC3126; display: inline-block; line-height: 100%; padding: 0.7em; text-decoration: none; color: #fff; width: 100px; line-height: 140%; font-size: 17px; font-family: open sans; font-weight: bold; } .reload:hover{ background: #A2261E; } .btn { width: 200px; color: #fff; border: none; margin-left: 10px; background: rgba(255, 255, 255, 0.11); } .clear { width: auto; } .btn:hover, .btn:hover { background: rgba(255,255,255,0.3); } .btns { width: 410px; margin: 50px auto; } .credit { font-style: italic; text-align: center; color: #fff; padding: 10px; margin: 0 0 40px 0; float: left; width: 100%; } .credit a { color: #ccc; text-decoration: none; font-weight: bold; } .back { position: absolute; top: 0; left: 0; text-align: center; display: block; padding: 7px; width: 100%; box-sizing: border-box; -moz-box-sizing: border-box; -webkit-box-sizing: border-box; background: rgba(0, 0, 0, 0.65); font-weight: bold; font-size: 13px; color: #fff; -webkit-transition: all 200ms ease-out; -moz-transition: all 200ms ease-out; -o-transition: all 200ms ease-out; transition: all 200ms ease-out; } .back:hover { background: rgba(0, 0, 0, 0.85); } .bl_form { margin: 150px 0; } .bl_form input { padding-top: 15px; background: rgba(255,255,255,0.10); box-shadow: 0 2px 8px rgba(0,0,0,0.2); border: none; color: white; padding: 10px 15px; border-radius: 25px; font-size: 16px; outline: none; } .lb_wrap .lb_label.top, .lb_wrap .lb_label.bottom { left: 15px !important; } .lb_wrap .lb_label.left { left: 0; } .lb_label { font-weight: bold; color: #999; } .lb_label.active { color: #FFF; } </style> <script> $(document).ready( function() { $(".label_better").label_better({ easing: "bounce" }); }); </script> <meta http-equiv="Content-Type" content="text/html; charset=utf-8"></head> <body> <div class="wrapper"> <div class="main"> <div class="header"> <h1>jQuery Label Better</h1> <h2>Label your form input like a boss</h2> <p class="credit">Created by Pete R., Founder of BucketListly</p> <div class="btns"> </div> </div> <div class="page-container"> <form class="bl_form"> <input type="text" class="label_better" data-new-placeholder="Username" placeholder="Username" > <input type="email" class="label_better" data-new-placeholder="Email Address" placeholder="Email Address"> <input type="password" value="abcdefg" class="label_better" data-new-placeholder="Password" placeholder="Password"> <input type="password" value="abcdefg" class="label_better" data-new-placeholder="Shhh.." placeholder="Confirm Password"> </form> </div> </div> </div> <div style="text-align:center;clear:both"> </div> </body> </html>
이 기사가 모든 사람의 jquery 프로그래밍 설계에 도움이 되기를 바랍니다.