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jquery select 英文首字母或字母检索类似百度查询

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jquery select 英文首字母或字母检索类似百度查询

 

插件名称:flexselect  下载地址:

 

demo html代码:

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN"
    "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en">
  <head>
    <meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
    <title>flexselect tests</title>
    <link rel="stylesheet" href="flexselect.css" type="text/css" media="screen" />
    <style>
      input { width: 400px; }
      label, input { display: block; }
      label { font-weight: bold; }
      input, .flexselect_dropdown li { font-size: 1em; }
      small { color: #999; }
      .flexselect_selected small { color: #ddd; }
    </style>
    <script src="http://code.jquery.com/jquery-1.4.2.js"></script>
    <script src="liquidmetal.js" type="text/javascript"></script>
    <script src="jquery.flexselect.js" type="text/javascript"></script>
    <script type="text/javascript">
      $(document).ready(function() {
        $("select.special-flexselect").flexselect({ hideDropdownOnEmptyInput: true });
        $("select.flexselect").flexselect();
        $("input:text:enabled:first").focus();
        $("form").submit(function() {
          alert($(this).serialize());
          return false;
        });
      });
    </script>
  </head>
  <body>
    <form>
      <label>Pick a Top 100 University or College in North America: <em>(Start typing...)</em></label>
      <select class="special-flexselect" id="school" name="school" tabindex="1" data-placeholder="Start typing a school name...">
        <option value=""></option>
        <option value="1">Massachusetts Institute of Technology</option>
        <option value="2">Harvard University</option>
        <option value="3">University of California, Berkeley</Option>
        <option value="4">University of Michigan</option>
        <option value="5">University of Illinois at Urbana-Champaign</option>
        <option value="6">Purdue University</option>
        <option value="7">University of Wisconsin-Madison</option>
        <option value="8">Yale University</option>
        <option value="9">Indiana University - System</option>
        <option value="10">University of California System</option>
        <option value="11">Stanford University</option>
        <option value="12">Penn State University</option>
        <option value="13">The University of Texas at Austin</option>
        <option value="14">University of Washington</option>
        <option value="15">University of Pennsylvania</option>
        <option value="16">Cornell University</option>
        <option value="17">Columbia University in the City of New York</option>
        <option value="18">University of California, Los Angeles</option>
        <option value="19">University of Minnesota</option>
        <option value="20">New York University</option>
        <option value="21">University of Florida</option>
        <option value="22">University of Virginia</option>
        <option value="23">Carnegie Mellon University</option>
        <option value="24">Rutgers University - New Brunswick</option>
        <option value="25">University of Toronto</option>
        <option value="26">University of Maryland</option>
        <option value="27">The Ohio State University</option>
        <option value="28">Virginia Polytechnic Institute and State University</option>
        <option value="29">University of Arizona</option>
        <option value="30">University of Southern California</option>
        <option value="31">Texas A&M University</option>
        <option value="32">Princeton University</option>
        <option value="33">University of North Carolina at Chapel Hill</option>
        <option value="34">Duke University</option>
        <option value="35">North Carolina State University</option>
        <option value="36">Michigan State University</option>
        <option value="37">University of California, San Diego</option>
        <option value="38">University of Chicago</option>
        <option value="39">The University of British Columbia</option>
        <option value="40">University of California, Irvine</option>
        <option value="41">University of California, Davis</option>
        <option value="42">Johns Hopkins University</option>
        <option value="43">Arizona State University</option>
        <option value="44">University of Georgia</option>
        <option value="45">Boston University</option>
        <option value="46">University of Colorado at Boulder</option>
        <option value="47">University of Waterloo</option>
        <option value="48">Northwestern University</option>
        <option value="49">University of Pittsburgh</option>
        <option value="50">York University</option>
        <option value="51">Iowa State University of Science and Technology</option>
        <option value="52">Georgia Institute of Technology</option>
        <option value="53">University of Iowa</option>
        <option value="54">McGill University</option>
        <option value="55">University of California, Santa Barbara</option>
        <option value="56">University of Alberta</option>
        <option value="57">University of Oregon</option>
        <option value="58">University of Delaware</option>
        <option value="59">Université Laval</option>
        <option value="60">California Institute of Technology</option>
        <option value="61">Oregon State University</option>
        <option value="62">University of California, Riverside</option>
        <option value="63">University of Illinois at Chicago</option>
        <option value="64">University of Nebraska - Lincoln</option>
        <option value="65">Drexel University</option>
        <option value="66">Simon Fraser University</option>
        <option value="67">Rice University</option>
        <option value="68">Washington University in St. Louis</option>
        <option value="69">Virginia Commonwealth University</option>
        <option value="70">Stony Brook University, State University of New York</option>
        <option value="71">Brown University</option>
        <option value="72">San Diego State University</option>
        <option value="73">Georgetown University</option>
        <option value="74">Université de Montréal</option>
        <option value="75">University of Rochester</option>
        <option value="76">Dartmouth College</option>
        <option value="77">University of Calgary</option>
        <option value="78">University of Victoria</option>
        <option value="79">Carleton University</option>
        <option value="80">Vanderbilt University</option>
        <option value="81">Emory University</option>
        <option value="82">University of Notre Dame</option>
        <option value="83">Université du Québec à Montréal</option>
        <option value="84">The University of Western Ontario</option>
        <option value="85">University of California, Santa Cruz</option>
        <option value="86">University of California, San Francisco</option>
        <option value="87">Auburn University</option>
        <option value="88">McMaster University</option>
        <option value="89">University of Wisconsin-Milwaukee</option>
        <option value="90">Portland State University</option>
        <option value="91">Queen's University</option>
        <option value="92">University of Guelph</option>
        <option value="93">SUNY at Binghamton</option>
        <option value="94">Utah State University</option>
        <option value="95">The University of Texas at Arlington</option>
        <option value="96">Illinois Institute of Technology</option>
        <option value="97">Concordia University</option>
        <option value="98">Indiana University - Purdue University Indianapolis</option>
        <option value="99">California State University, Sacramento</option>
        <option value="100">New Jersey Institute of Technology</option>
      </select>
      <p></p>

      <label style="margin: 75px 0 0 400px;">Pick a US President: <em>(Start typing...)</em></label>
      <select id="president" class="flexselect" name="president"  tabindex="2" style="font-size: 1.5em; 10px; margin: 10px 0 0 400px;">
        <option value="1">George Washington</option>
        <option value="2">John Adams</option>
        <option value="3">Thomas Jefferson</option>
        <option value="4">James Madison</option>
        <option value="5">James Monroe</option>
        <option value="6">John Quincy Adams</option>
        <option value="7">Andrew Jackson</option>
        <option value="8">Martin Van Buren</option>
        <option value="9">William Henry Harrison</option>
        <option value="10">John Tyler</option>
        <option value="11">James Knox Polk</option>
        <option value="12">Zachary Taylor</option>
        <option value="13">Millard Fillmore</option>
        <option value="14">Franklin Pierce</option>
        <option value="15">James Buchanan</option>
        <option value="16">Abraham Lincoln</option>
        <option value="17">Andrew Johnson</option>
        <option value="18">Ulysses S. Grant</option>
        <option value="19">Rutherford B. Hayes</option>
        <option value="20">James Garfield</option>
        <option value="21">Chester Arthur</option>
        <option value="22">Grover Cleveland</option>
        <option value="23">Benjamin Harrison</option>
        <option value="24">Grover Cleveland</option>
        <option value="25">William McKinley</option>
        <option value="26">Theodore Roosevelt</option>
        <option value="27">William Howard Taft</option>
        <option value="28">Woodrow Wilson</option>
        <option value="29">Warren Harding</option>
        <option value="30">Calvin Coolidge</option>
        <option value="31">Herbert Hoover</option>
        <option value="32">Franklin D. Roosevelt</option>
        <option value="33">Harry S Truman</option>
        <option value="34">Dwight D. Eisenhower</option>
        <option value="35">John F. Kennedy</option>
        <option value="36">Lyndon Johnson</option>
        <option value="37">Richard Nixon</option>
        <option value="38">Gerald Ford</option>
        <option value="39">James Carter</option>
        <option value="40">Ronald Reagan</option>
        <option value="41">George H. W. Bush</option>
        <option value="42">William J. Clinton</option>
        <option value="43">George W. Bush</option>
        <option value="44">Barack H. Obama</option>
      </select>

      <div style="position:absolute; top:300px; left:100px; z-index:100; text-align:left;">
        <div style="position:relative; background-color:#ccc; padding:10px;">
          <div style="width:500px; height:100px;">
            <select id="animal" name="animal" class="flexselect" tabindex="3" onchange="alert('You changed the animal to ' + $(this).val());">
              <option value="angelfish">angelfish</option>
              <option value="buffalo">buffalo</option>
              <option value="canary">canary</option>
              <option value="dinosaur">dinosaur</option>
              <option value="eel">eel</option>
              <option value="fox">fox</option>
              <option value="goldfish">goldfish</option>
              <option value="hippo">hippo</option>
              <option value="iguana">iguana</option>
              <option value="jellyfish">jellyfish</option>
              <option value="kangaroo">kangaroo</option>
              <option value="llama">llama</option>
              <option value="moose">moose</option>
              <option value="narwhal">narwhal</option>
              <option value="ostrich">ostrich</option>
              <option value="pelican">pelican</option>
              <option value="quail">quail</option>
              <option value="raccoon">raccoon</option>
              <option value="snail">snail</option>
              <option value="toucan">toucan</option>
              <option value="unicorn">unicorn</option>
              <option value="vulture">vulture</option>
              <option value="wildebeest">wildebeest</option>
              <option value="xenopus">xenopus</option>
              <option value="yak">yak</option>
              <option value="zebra">zebra</option>
            </select>
            <p>This is an absolute positioned div with an onchange handler on the original select element.</p>
          </div>
        </div>
      </div>
      <input type="submit" value="Go" style="margin: 250px auto 0;" tabindex="4"/>
    <form>
  </body>
</html>

 

flexselect.css css样式:

 

.flexselect_dropdown {
  display: none;
  position: absolute;
  z-index: 999999;
  margin: 0;
    padding: 0;
    border: 1px solid WindowFrame;
  max-height: 200px;
  overflow-x: hidden;
  overflow-y: auto;
    background-color: Window;
  color: WindowText;
  text-align: left;
  box-shadow: 0 6px 12px #ccc;
  -webkit-box-shadow: 0 6px 12px #ccc;
}

.flexselect_dropdown ul {
    width: 100%;
    list-style-position: outside;
    list-style: none;
    padding: 0;
    margin: 0;
}

.flexselect_dropdown li {
    margin: 0px;
    padding: 2px 5px;
    cursor: pointer;
    display: block;
    width: 100%;
    font: Menu;
    overflow: hidden;
}

.flexselect_selected {
    background-color: Highlight;
    color: HighlightText;
}

 

 #p#分页标题#e#

jquery.flexselect.js js代码:

 

//jquery.flexselect.js

/**
 * flexselect: a jQuery plugin, version: %RELEASE_VERSION% (%RELEASE_DATE%)
 * @requires jQuery v1.3 or later
 *
 * FlexSelect is a jQuery plugin that makes it easy to convert a select box into
 * a Quicksilver-style, autocompleting, flex matching selection tool.
 *
 * For usage and examples, visit:
 * http://rmm5t.github.io/jquery-flexselect/
 *
 * Licensed under the MIT:
 * http://www.opensource.org/licenses/mit-license.php
 *
 * Copyright (c) 2009-2012, Ryan McGeary (ryan -[at]- mcgeary [*dot*] org)
 */
(function($) {
  $.flexselect = function(select, options) { this.init(select, options); };

  $.extend($.flexselect.prototype, {
    settings: {
      allowMismatch: false,
      allowMismatchBlank: true, // If "true" a user can backspace such that the value is nothing (even if no blank value was provided in the original criteria)
      sortBy: 'score', // 'score' || 'name'
      preSelection: true,
      hideDropdownOnEmptyInput: false,
      selectedClass: "flexselect_selected",
      dropdownClass: "flexselect_dropdown",
      inputIdTransform:    function(id)   { return id + "_flexselect"; },
      inputNameTransform:  function(name) { return; },
      dropdownIdTransform: function(id)   { return id + "_flexselect_dropdown"; }
    },
    select: null,
    input: null,
    dropdown: null,
    dropdownList: null,
    cache: [],
    results: [],
    lastAbbreviation: null,
    abbreviationBeforeFocus: null,
    selectedIndex: 0,
    picked: false,
    allowMouseMove: true,
    dropdownMouseover: false, // Workaround for poor IE behaviors

    init: function(select, options) {
      this.settings = $.extend({}, this.settings, options);
      this.select = $(select);
      this.preloadCache();
      this.renderControls();
      this.wire();
    },

    preloadCache: function() {
      this.cache = this.select.find("option").map(function() {
        return { name: $.trim($(this).text()), value: $(this).val(), score: 0.0 };
      });
    },

    renderControls: function() {
      var selected = this.settings.preSelection ? this.select.find("option:selected") : null;

      this.input = $("<input type='text' autocomplete='off' />").attr({
        id: this.settings.inputIdTransform(this.select.attr("id")),
        name: this.settings.inputNameTransform(this.select.attr("name")),
        accesskey: this.select.attr("accesskey"),
        tabindex: this.select.attr("tabindex"),
        style: this.select.attr("style"),
        placeholder: this.select.attr("data-placeholder")
      }).addClass(this.select.attr("class")).val($.trim(selected ? selected.text():  '')).css({
        visibility: 'visible'
      });

      this.dropdown = $("<div></div>").attr({
        id: this.settings.dropdownIdTransform(this.select.attr("id"))
      }).addClass(this.settings.dropdownClass);
      this.dropdownList = $("<ul></ul>");
      this.dropdown.append(this.dropdownList);

      this.select.after(this.input).hide();
      $("body").append(this.dropdown);
    },

    wire: function() {
      var self = this;

      this.input.click(function() {
        self.lastAbbreviation = null;
        self.focus();
      });

      this.input.mouseup(function(event) {
        // This is so Safari selection actually occurs.
        event.preventDefault();
      });

      this.input.focus(function() {
        self.abbreviationBeforeFocus = self.input.val();
        self.input.select();
        if (!self.picked) self.filterResults();
      });

      this.input.blur(function() {
        if (!self.dropdownMouseover) {
          self.hide();
          if (self.settings.allowMismatchBlank && $.trim($(this).val()) == '')
            self.setValue('');
          if (!self.settings.allowMismatch && !self.picked)
            self.reset();
        }
        if (self.settings.hideDropdownOnEmptyInput)
          self.dropdownList.show();
      });

      this.dropdownList.mouseover(function(event) {
        if (!self.allowMouseMove) {
          self.allowMouseMove = true;
          return;
        }

        if (event.target.tagName == "LI") {
          var rows = self.dropdown.find("li");
          self.markSelected(rows.index($(event.target)));
        }
      });
      this.dropdownList.mouseleave(function() {
        self.markSelected(-1);
      });
      this.dropdownList.mouseup(function(event) {
        self.pickSelected();
        self.focusAndHide();
      });
      this.dropdown.mouseover(function(event) {
        self.dropdownMouseover = true;
      });
      this.dropdown.mouseleave(function(event) {
        self.dropdownMouseover = false;
      });
      this.dropdown.mousedown(function(event) {
        event.preventDefault();
      });

      this.input.keyup(function(event) {
        switch (event.keyCode) {
          case 13: // return
            event.preventDefault();
            self.pickSelected();
            self.focusAndHide();
            break;
          case 27: // esc
            event.preventDefault();
            self.reset();
            self.focusAndHide();
            break;
          default:
            self.filterResults();
            break;
        }
        if (self.settings.hideDropdownOnEmptyInput){
          if(self.input.val() == "")
            self.dropdownList.hide();
          else
            self.dropdownList.show();
        }
      });

      this.input.keydown(function(event) {
        switch (event.keyCode) {
          case 9:  // tab
            self.pickSelected();
            self.hide();
            break;
          case 33: // pgup
            event.preventDefault();
            self.markFirst();
            break;
          case 34: // pgedown
            event.preventDefault();
            self.markLast();
            break;
          case 38: // up
            event.preventDefault();
            self.moveSelected(-1);
            break;
          case 40: // down
            event.preventDefault();
            self.moveSelected(1);
            break;
          case 13: // return
          case 27: // esc
            event.preventDefault();
            event.stopPropagation();
            break;
        }
      });

      var input = this.input;
      this.select.change(function () {
        input.val($.trim($(this).find('option:selected').text()));
      });
    },

    filterResults: function() {
      var abbreviation = this.input.val();
      if (abbreviation == this.lastAbbreviation) return;

      var results = [];
      $.each(this.cache, function() {
        this.score = LiquidMetal.score(this.name, abbreviation);
        if (this.score > 0.0) results.push(this);
      });
      this.results = results;

      if (this.settings.sortBy == 'score')
        this.sortResultsByScore();
      else if (this.settings.sortBy == 'name')
        this.sortResultsByName();

      this.renderDropdown();
      this.markFirst();
      this.lastAbbreviation = abbreviation;
      this.picked = false;
      this.allowMouseMove = false;
    },

    sortResultsByScore: function() {
      this.results.sort(function(a, b) { return b.score - a.score; });
    },

    sortResultsByName: function() {
      this.results.sort(function(a, b) { return a.name < b.name ? -1 : (a.name > b.name ? 1 : 0); });
    },

    renderDropdown: function() {
      var dropdownBorderWidth = this.dropdown.outerWidth() - this.dropdown.innerWidth();
      var inputOffset = this.input.offset();
      this.dropdown.css({
        width: (this.input.outerWidth() - dropdownBorderWidth) + "px",
        top: (inputOffset.top + this.input.outerHeight()) + "px",
        left: inputOffset.left + "px",
        maxHeight: ''
      });

      var html = '';
      $.each(this.results, function() {
        //html += '<li>' + this.name + ' <small>[' + Math.round(this.score*100)/100 + ']</small></li>';
        html += '<li>' + this.name + '</li>';
      });
      this.dropdownList.html(html);
      this.adjustMaxHeight();
      this.dropdown.show();
    },

    adjustMaxHeight: function() {
      var maxTop = $(window).height() + $(window).scrollTop() - this.dropdown.outerHeight();
      var top = parseInt(this.dropdown.css('top'), 10);
      this.dropdown.css('max-height', top > maxTop ? (Math.max(0, maxTop - top + this.dropdown.innerHeight()) + 'px') : '');
    },

    markSelected: function(n) {
      if (n < 0 || n >= this.results.length) return;

      var rows = this.dropdown.find("li");
      rows.removeClass(this.settings.selectedClass);
      this.selectedIndex = n;

      var row = $(rows[n]).addClass(this.settings.selectedClass);
      var top = row.position().top;
      var delta = top + row.outerHeight() - this.dropdown.height();
      if (delta > 0) {
        this.allowMouseMove = false;
        this.dropdown.scrollTop(this.dropdown.scrollTop() + delta);
      } else if (top < 0) {
        this.allowMouseMove = false;
        this.dropdown.scrollTop(Math.max(0, this.dropdown.scrollTop() + top));
      }
    },

    pickSelected: function() {
      var selected = this.results[this.selectedIndex];
      if (selected) {
        this.input.val(selected.name);
        this.setValue(selected.value);
        this.picked = true;
      } else if (this.settings.allowMismatch) {
        this.setValue.val("");
      } else {
        this.reset();
      }
    },

    setValue: function(val) {
      if (this.select.val() === val) return;
      this.select.val(val).change();
    },

    hide: function() {
      this.dropdown.hide();
      this.lastAbbreviation = null;
    },

    moveSelected: function(n) { this.markSelected(this.selectedIndex+n); },
    markFirst:    function()  { this.markSelected(0); },
    markLast:     function()  { this.markSelected(this.results.length - 1); },
    reset:        function()  { this.input.val(this.abbreviationBeforeFocus); },
    focus:        function()  { this.input.focus(); },
    focusAndHide: function()  { this.focus(); this.hide(); }
  });

  $.fn.flexselect = function(options) {
    this.each(function() {
      if (this.tagName == "SELECT") new $.flexselect(this, options);
    });
    return this;
  };
})(jQuery);

 

#p#分页标题#e#

 

liquidmetal.js 代码:

 

/**
   liquidmetal.js

 * LiquidMetal, version: 1.2.1 (2012-04-21)
 *
 * A mimetic poly-alloy of Quicksilver's scoring algorithm, essentially
 * LiquidMetal.
 *
 * For usage and examples, visit:
 * http://github.com/rmm5t/liquidmetal
 *
 * Licensed under the MIT:
 * http://www.opensource.org/licenses/mit-license.php
 *
 * Copyright (c) 2009-2012, Ryan McGeary (ryan -[at]- mcgeary [*dot*] org)
 */
var LiquidMetal = (function() {
  var SCORE_NO_MATCH = 0.0;
  var SCORE_MATCH = 1.0;
  var SCORE_TRAILING = 0.8;
  var SCORE_TRAILING_BUT_STARTED = 0.9;
  var SCORE_BUFFER = 0.85;
  var WORD_SEPARATORS = " \t_-";

  return {
    lastScore: null,
    lastScoreArray: null,

    score: function(string, abbrev) {
      // short circuits
      if (abbrev.length === 0) return SCORE_TRAILING;
      if (abbrev.length > string.length) return SCORE_NO_MATCH;

      // match & score all
      var allScores = [];
      var search = string.toLowerCase();
      abbrev = abbrev.toLowerCase();
      this._scoreAll(string, search, abbrev, -1, 0, [], allScores);

      // complete miss
      if (allScores.length == 0) return 0;

      // sum per-character scores into overall scores,
      // selecting the maximum score
      var maxScore = 0.0, maxArray = [];
      for (var i = 0; i < allScores.length; i++) {
        var scores = allScores[i];
        var scoreSum = 0.0;
        for (var j = 0; j < string.length; j++) { scoreSum += scores[j]; }
        if (scoreSum > maxScore) {
          maxScore = scoreSum;
          maxArray = scores;
        }
      }

      // normalize max score by string length
      // s. t. the perfect match score = 1
      maxScore /= string.length;

      // record maximum score & score array, return
      this.lastScore = maxScore;
      this.lastScoreArray = maxArray;
      return maxScore;
    },

    _scoreAll: function(string, search, abbrev, searchIndex, abbrIndex, scores, allScores) {
      // save completed match scores at end of search
      if (abbrIndex == abbrev.length) {
        // add trailing score for the remainder of the match
        var started = (search.charAt(0) == abbrev.charAt(0));
        var trailScore = started ? SCORE_TRAILING_BUT_STARTED : SCORE_TRAILING;
        fillArray(scores, trailScore, scores.length, string.length);
        // save score clone (since reference is persisted in scores)
        allScores.push(scores.slice(0));
        return;
      }

      // consume current char to match
      var c = abbrev.charAt(abbrIndex);
      abbrIndex++;

      // cancel match if a character is missing
      var index = search.indexOf(c, searchIndex);
      if (index == -1) return;

      // match all instances of the abbreviaton char
      var scoreIndex = searchIndex; // score section to update
      while ((index = search.indexOf(c, searchIndex+1)) != -1) {
        // score this match according to context
        if (isNewWord(string, index)) {
          scores[index-1] = 1;
          fillArray(scores, SCORE_BUFFER, scoreIndex+1, index-1);
        }
        else if (isUpperCase(string, index)) {
          fillArray(scores, SCORE_BUFFER, scoreIndex+1, index);
        }
        else {
          fillArray(scores, SCORE_NO_MATCH, scoreIndex+1, index);
        }
        scores[index] = SCORE_MATCH;

        // consume matched string and continue search
        searchIndex = index;
        this._scoreAll(string, search, abbrev, searchIndex, abbrIndex, scores, allScores);
      }
    }
  };

  function isUpperCase(string, index) {
    var c = string.charAt(index);
    return ("A" <= c && c <= "Z");
  }

   function isNewWord(string, index) {
    var c = string.charAt(index-1);
    return (WORD_SEPARATORS.indexOf(c) != -1);
  }

  function fillArray(array, value, from, to) {
    for (var i = from; i < to; i++) { array[i] = value; }
    return array;
  }
})();

 


开心洋葱 , 版权所有丨如未注明 , 均为原创丨未经授权请勿修改 , 转载请注明jquery select 英文首字母或字母检索类似百度查询
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