使用JS组件实现带ToolTip验证框的实例代码

本组件依赖jquery

本人测试的jquery 是1.8，

兼容ie8,ie9，谷歌，火狐等。

//验证输入框
function validatecompent(input){
  var _input = $(input).clone(true);
  _input.css("height",$(input).css("height"));
  _input.css("width", $(input).css("width"));
  var border =_input.css("border"); 
  this.successiconclass = "icon-tick";//验证通过时的样式
  this.validate = false;
  this.faileiconclass = "icon-times";//验证失败时的样式
  var $validateroot = $('<div class="validate-v1-container"><div class="validate-v1-tooltip"></div></div>');
  var $tooltip = $validateroot.children(".validate-v1-tooltip");
  var $input = _input;
  if($input != undefined){
    var maxwidth = $input.css("width");
    var maxheight = $input.css("height");
    $validateroot.css("display","inline");
    $validateroot.css("position","relative");
    $validateroot.css("width",maxwidth);
    $validateroot.css("height",maxheight);
    $tooltip.css("width",maxwidth);
    $tooltip.css("padding","0px 5px");
    $tooltip.css("position","absolute");
    $tooltip.css("top","0px");
    $tooltip.css("z-index","999999");
    $tooltip.css("background-color","white");
    $tooltip.css("border","solid 1px rgb(188,188,188)");
    $tooltip.css("left",parseint(maxwidth) + 10+"px");
    $tooltip.hide();
    var validateoption = $input.attr("data-vali-option");
    if(validateoption != undefined){
      validateoption = json.parse(validateoption);
      var that = this;
      var regvali = new array();
      $tooltip.hide();
      if(validateoption.length == 0){
        return;
      }
      for(var i = 0; i <validateoption.length;i++){
        var message = validateoption[i].message;
        var pattern = validateoption[i].pattern;
        var reg = new regexp(pattern);
        var messageview = new validatemessage(message,that.faileiconclass);
        regvali.push({"reg":reg,"view":messageview});
        $tooltip.append(messageview.dom);
      }
      $tooltip.css("height",(parseint(maxheight) +15) * validateoption.length );
      $input.on("textchange focus",function(e){
        $tooltip.show();
        for(var i = 0 ; i < regvali.length; i++){
          if(regvali[i].reg.test($input.val())){
            regvali[i].view.seticonclass(that.successiconclass);
            regvali[i].view.dom.css("color","green");
          }else{
            regvali[i].view.seticonclass(that.faileiconclass);
            regvali[i].view.dom.css("color","red");
          }
        }
      })
      $input.on("blur", function(e) {
        $tooltip.hide();
        for(var i = 0 ; i < regvali.length; i++){
          if(regvali[i].reg.test($input.val())){
            regvali[i].view.seticonclass(that.successiconclass);
            $input.css("border",border);
            that.validate = true;
          }else{
            regvali[i].view.seticonclass(that.faileiconclass);
            $input.css("border","1px solid red");
            that.validate = false;
            break;
          }
        }
      });
      $validateroot.append($input);
    }else{
      return;
    }
  }
  this.dom = function(){
    return $validateroot;
  }
  function validatemessage(message,iconfontclass){
    var dom = $('<div class="validate-message"><span class="vticon"></span><span class="vmessage"></span></div>');
    var $icon = dom.children(".vticon");
    var $message = dom.children(".vmessage");
    $message.css("line-height","28px");
    $message.css("padding","5px 5px");
    $message.css("padding-right","10px");
    $message.css("word-break","break-all");
    $message.css("word-wrap","break-word");
    $message.css("font-size","14px");
    $message.css("position","relative");
    $message.css("z-index","999999");
    this.seticonclass = function(iconclass){
      $icon.removeclass();
      $icon.addclass("vticon");
      $icon.addclass(iconclass);
    }
    this.geticon = function(){
      return $icon;
    }
    this.setmessagetext = function(_message){
      $message.html(_message);
    }
    this.getmessagetext = function(){
      return $message;
    }
    this.seticonclass(iconfontclass);
    this.setmessagetext(message);
    this.dom = dom;
  }
  $validateroot.insertafter($(input));
  $(input).remove();
}

以下是html代码

<input id="test" data-vali-option='[{"pattern":"[1-9]+","message":"只能输入1-9的数"},{"pattern":"[a-z]+","message":"只能输入a-z的数"}]' />

使用方法如下

$(function(){
  var c = new validatecompent("#test");
});

依赖jquery,

另外附上jquery textchange事件的代码，textchange代码放在jquery之后，在使用方法之前。

/**
 * jquery "splendid textchange" plugin
 * http://benalpert.com/2013/06/18/a-near-perfect-oninput-shim-for-ie-8-and-9.html
 *
 * (c) 2013 ben alpert, released under the mit license
 */
(function($) {
var testnode = document.createelement("input");
var isinputsupported = "oninput" in testnode && 
  (!("documentmode" in document) || document.documentmode > 9);
var hasinputcapabilities = function(elem) {
  // the html5 spec lists many more types than `text` and `password` on
  // which the input event is triggered but none of them exist in ie 8 or
  // 9, so we don't check them here.
  // todo: <textarea> should be supported too but ie seems to reset the
  // selection when changing textarea contents during a selectionchange
  // event so it's not listed here for now.
  return elem.nodename === "input" &&
    (elem.type === "text" || elem.type === "password");
};
var activeelement = null;
var activeelementvalue = null;
var activeelementvalueprop = null;
/**
 * (for old ie.) replacement getter/setter for the `value` property that
 * gets set on the active element.
 */
var newvalueprop = {
  get: function() {
    return activeelementvalueprop.get.call(this);
  },
  set: function(val) {
    activeelementvalue = val;
    activeelementvalueprop.set.call(this, val);
  }
};
/**
 * (for old ie.) starts tracking propertychange events on the passed-in element
 * and override the value property so that we can distinguish user events from
 * value changes in js.
 */
var startwatching = function(target) {
  activeelement = target;
  activeelementvalue = target.value;
  activeelementvalueprop = object.getownpropertydescriptor(
      target.constructor.prototype, "value");
  object.defineproperty(activeelement, "value", newvalueprop);
  activeelement.attachevent("onpropertychange", handlepropertychange);
};
/**
 * (for old ie.) removes the event listeners from the currently-tracked
 * element, if any exists.
 */
var stopwatching = function() {
 if (!activeelement) return;
 // delete restores the original property definition
 delete activeelement.value;
 activeelement.detachevent("onpropertychange", handlepropertychange);
 activeelement = null;
 activeelementvalue = null;
 activeelementvalueprop = null;
};
/**
 * (for old ie.) handles a propertychange event, sending a textchange event if
 * the value of the active element has changed.
 */
var handlepropertychange = function(nativeevent) {
  if (nativeevent.propertyname !== "value") return;
  var value = nativeevent.srcelement.value;
  if (value === activeelementvalue) return;
  activeelementvalue = value;
  $(activeelement).trigger("textchange");
};
if (isinputsupported) {
  $(document)
    .on("input", function(e) {
      // in modern browsers (i.e., not ie 8 or 9), the input event is
      // exactly what we want so fall through here and trigger the
      // event...
      if (e.target.nodename !== "textarea") {
        // ...unless it's a textarea, in which case we don't fire an
        // event (so that we have consistency with our old-ie shim).
        $(e.target).trigger("textchange");
      }
    });
} else {
  $(document)
    .on("focusin", function(e) {
      // in ie 8, we can capture almost all .value changes by adding a
      // propertychange handler and looking for events with propertyname
      // equal to 'value'.
      // in ie 9, propertychange fires for most input events but is buggy
      // and doesn't fire when text is deleted, but conveniently,
      // selectionchange appears to fire in all of the remaining cases so
      // we catch those and forward the event if the value has changed.
      // in either case, we don't want to call the event handler if the
      // value is changed from js so we redefine a setter for `.value`
      // that updates our activeelementvalue variable, allowing us to
      // ignore those changes.
      if (hasinputcapabilities(e.target)) {
        // stopwatching() should be a noop here but we call it just in
        // case we missed a blur event somehow.
        stopwatching();
        startwatching(e.target);
      }
    })
    .on("focusout", function() {
      stopwatching();
    })
    .on("selectionchange keyup keydown", function() {
      // on the selectionchange event, e.target is just document which
      // isn't helpful for us so just check activeelement instead.
      //
      // 90% of the time, keydown and keyup aren't necessary. ie 8 fails
      // to fire propertychange on the first input event after setting
      // `value` from a script and fires only keydown, keypress, keyup.
      // catching keyup usually gets it and catching keydown lets us fire
      // an event for the first keystroke if user does a key repeat
      // (it'll be a little delayed: right before the second keystroke).
      // other input methods (e.g., paste) seem to fire selectionchange
      // normally.
      if (activeelement && activeelement.value !== activeelementvalue) {
        activeelementvalue = activeelement.value;
        $(activeelement).trigger("textchange");
      }
    });
}
})(jquery);

获取验证结果

$(function(){
  var c = new validatecompent("#test");
  $("#test").click(function(){
    console.log(c.validate);
  });
});

自定义显示方案

$(function(){
  var c = new validatecompent("#test");
  $("#test").click(function(){
    console.log(c.validate);
  });
  c.dom().addclass("你的样式类");
});

设置图标字体样式

$(function(){
  var c = new validatecompent("#test");
  $("#test").click(function(){
    console.log(c.validate);
  });
  c.successiconclass = "";//成功时的样式
  c.faileiconclass = "";//失败时的样式
});

效果图如下

分别是成功，部分成功，全部失败选中，未选中的样式效果，（勾叉是用的字体css,建议自行寻找字体替代）

总结

以上所述是小编给大家介绍的使用js组件实现带tooltip验证框的实例代码，希望对大家有所帮助