Kemahiran plug-in_javascript kotak gesaan jQuery anda (Petua).

Pemalam boleh memenuhi paparan segera yang biasa digunakan, menyokong 12 arah, menyokong jidar, warna latar belakang, penyesuaian warna teks dan menyokong penalaan halus kedudukan, penalaan halus tahap, jarak lebar dan pelarasan parameter lain.

Mari kita lihat kesannya dahulu:

petua: komponen maklumat segera
Parameter:

• msg:'asdf', kandungan
  
• mengerikan:2, arah
  
• w:250,lebar
  
• _x:0, mengimbangi sisi
  
• _y:0, mengimbangi menegak
  
• zIndex:100000,tahap
  
• warna sempadan:#FFF, warna sempadan
  
• bgColor:#FFF, warna latar belakang
  
• useHover:true sama ada hendak menggunakan paparan tuding
  
• warna: warna teks gesaan lalai
  
• lapik: margin
  

kod javascript:

(function ($) {
  var defaults = {
    dire: 12,
    w: 250,
    _x: 0,
    _y: 0,
    borderColor: '#FFBB76',
    bgColor: '#FFFCEF',
    color: '#FF0000',
    padding: [5, 10],
    arrWidth: 10,
    useHover: true,
    zIndex: 100000
  };
  $.fn.tips = function (opt) {
    var tip, opts = $.extend({}, defaults, opt);
    if (this[0]) {
      opts.tag = this;
      if (opts.useHover) {
        opts.tag.hover(function () {
          tip = new Tip(opts);
          tip.show();
        }, function () {
          tip.close();
        });
      } else {
        tip = new Tip(opts);
        tip.show();
      }
      return this;
    }
  };
  function Tip(opts) {
    this.dire = opts.dire;
    this.width = opts.w;
    this.zIndex = opts.zIndex;
    this.borderColor = opts.borderColor;
    this.bgColor = opts.bgColor;
    this.color = opts.color;
    this.padding = opts.padding;
    this.arrWidth = opts.arrWidth;
    this.offsetX = opts._x;
    this.offsetY = opts._y;
    this.tag = opts.tag;
    this.msg = opts.msg;
    this.wrap = $('<div class="tip-wrap"></div>');
    this.innerArr = $('<div class="tip-arr-a"></div>');
    this.outerArr = $('<div class="tip-arr-b"></div>');
    this.init();
  };
  Tip.prototype = {
    init: function () {
      var msg = this.tag.data('tipMsg');
      if (!this.msg) {
        this.msg = msg;
      }
      this.createTemp();
    },
    createTemp: function () {
      var t = this;
      t.createWrap();
      t.setPosition();
    },
    createWrap: function () {
      var t = this;
      t.wrap.html(t.msg);
      var wrapCSS = {
        width: t.width,
        border: '1px solid ' + t.borderColor,
        'border-radius': '5px',
        background: t.bgColor,
        color: t.color,
        padding: t.getPadding()
      };
      t.outerArr.css(t.getArrStyle(t.dire, t.arrWidth, t.borderColor));
      t.innerArr.css(t.getArrStyle(t.dire, t.arrWidth, t.bgColor));
      t.wrap.prepend(t.innerArr).prepend(t.outerArr).css(wrapCSS);
      $('body').append(t.wrap);
    },
    setPosition: function () {
      var t = this;
      var posObj = t.getPos(t.dire, t.getPosition(t.tag), t.getPosition(t.wrap), t.arrWidth), pos = posObj.pos, innerPos = posObj.innerPos, outerPos = posObj.outerPos;
      t.wrap.css({top: pos.y, left: pos.x});
      t.innerArr.css({top: innerPos.y, left: innerPos.x});
      t.outerArr.css({top: outerPos.y, left: outerPos.x});
    },
    getPadding: function () {
      var t = this, pad = '0px', padArr = t.padding, len = padArr.length;
      switch (len) {
        case 1:
          pad = padArr[0] + 'px';
          break;
        case 2:
          pad = padArr[0] + 'px ' + padArr[1] + 'px';
          break;
        case 3:
          pad = padArr[0] + 'px ' + padArr[1] + 'px ' + padArr[2] + 'px';
          break;
        case 4:
          pad = padArr[0] + 'px ' + padArr[1] + 'px ' + padArr[2] + 'px ' + padArr[3] + 'px';
          break;
      }
      return pad;
    },
    getPosition: function (tag) {
      return {t: tag.offset().top, l: tag.offset().left, h: tag.outerHeight(), w: tag.outerWidth()};
    },
    getArrStyle: function (dir, width, color) {
      var style;
      switch (dir) {
        case 11:
        case 12:
        case 1:
          style = {
            'border-bottom-style': 'solid',
            'border-width': '0px ' + width + 'px ' + width + 'px',
            'border-bottom-color': color
          };
          break;
        case 2:
        case 3:
        case 4:
          style = {
            'border-left-style': 'solid',
            'border-width': width + 'px 0px ' + width + 'px ' + width + 'px',
            'border-left-color': color
          };
          break;
        case 5:
        case 6:
        case 7:
          style = {
            'border-top-style': 'solid',
            'border-width': width + 'px ' + width + 'px 0px',
            'border-top-color': color
          };
          break;
        case 8:
        case 9:
        case 10:
          style = {
            'border-right-style': 'solid',
            'border-width': width + 'px ' + width + 'px ' + width + 'px 0px',
            'border-right-color': color
          };
          break;
      }
      return style || {};
    },
    getPos: function (d, tagPos, pos, arrWidth) {
      var _pos, _innerPos, _outerPos, l = tagPos.l, t = tagPos.t, w = tagPos.w, h = tagPos.h, ww = pos.w, hh = pos.h;
      switch (d) {
        case 0:
        case 1:
          _pos = {x: l + w / 2 + arrWidth + 20 + 1 - ww, y: t + h + arrWidth};
          _outerPos = {x: ww - 2 - 20 - arrWidth * 2, y: -arrWidth};
          _innerPos = {x: ww - 2 - 20 - arrWidth * 2, y: -arrWidth + 1};
          break;
        case 2:
          _pos = {x: l - ww - arrWidth, y: t + h / 2 - arrWidth - 20 - 1};
          _outerPos = {x: ww - 2, y: 20};
          _innerPos = {x: ww - 2 - 1, y: 20};
          break;
        case 3:
          _pos = {x: l - ww - arrWidth, y: t + h / 2 - hh / 2};
          _outerPos = {x: ww - 2, y: (hh - 2) / 2 - arrWidth};
          _innerPos = {x: ww - 2 - 1, y: (hh - 2) / 2 - arrWidth};
          break;
        case 4:
          _pos = {x: l - ww - arrWidth, y: t + h / 2 + arrWidth + 20 + 1 - hh};
          _outerPos = {x: ww - 2, y: hh - 2 - 20 - arrWidth * 2};
          _innerPos = {x: ww - 2 - 1, y: hh - 2 - 20 - arrWidth * 2};
          break;
        case 5:
          _pos = {x: l + w / 2 + arrWidth + 20 + 1 - ww, y: t - arrWidth - hh};
          _outerPos = {x: ww - 2 - 20 - arrWidth * 2, y: hh - 2};
          _innerPos = {x: ww - 2 - 20 - arrWidth * 2, y: hh - 2 - 1};
          break;
        case 6:
          _pos = {x: l + w / 2 - ww / 2, y: t - arrWidth - hh};
          _outerPos = {x: (ww - 2) / 2 - arrWidth, y: hh - 2};
          _innerPos = {x: (ww - 2) / 2 - arrWidth, y: hh - 2 - 1};
          break;
        case 7:
          _pos = {x: l + w / 2 - 20 - arrWidth, y: t - arrWidth - hh};
          _outerPos = {x: 20, y: hh - 2};
          _innerPos = {x: 20, y: hh - 2 - 1};
          break;
        case 8:
          _pos = {x: l + w + arrWidth, y: t + h / 2 + arrWidth + 20 + 1 - hh};
          _outerPos = {x: -arrWidth, y: hh - 2 - 20 - arrWidth * 2};
          _innerPos = {x: -arrWidth + 1, y: hh - 2 - 20 - arrWidth * 2};
          break;
        case 9:
          _pos = {x: l + w + arrWidth, y: t + h / 2 - hh / 2};
          _outerPos = {x: -arrWidth, y: (hh - 2) / 2 - arrWidth};
          _innerPos = {x: -arrWidth + 1, y: (hh - 2) / 2 - arrWidth};
          break;
        case 10:
          _pos = {x: l + w + arrWidth, y: t + h / 2 - arrWidth - 20 - 1};
          _outerPos = {x: -arrWidth, y: 20};
          _innerPos = {x: -arrWidth + 1, y: 20};
          break;
        case 11:
          _pos = {x: l + w / 2 - 20 - arrWidth, y: t + h + arrWidth};
          _outerPos = {x: 20, y: -arrWidth};
          _innerPos = {x: 20, y: -arrWidth + 1};
          break;
        case 12:
          _pos = {x: l + w / 2 - ww / 2, y: t + h + arrWidth};
          _outerPos = {x: (ww - 2) / 2 - arrWidth, y: -arrWidth};
          _innerPos = {x: (ww - 2) / 2 - arrWidth, y: -arrWidth + 1};
          break;
        default:
          _pos = {x: 0, y: 0};
      }
      return {
        pos: _pos,
        innerPos: _innerPos,
        outerPos: _outerPos
      };
    },
    show: function () {
      this.wrap.show();
    },
    close: function () {
      this.wrap.remove();
    }
  };
})(jQuery);

CSS:

.tip-wrap {
  position: absolute;
  display: none;
}

.tip-arr-a, .tip-arr-b {
  position: absolute;
  width: 0;
  height: 0;
  line-height: 0;
  border-style: dashed;
  border-color: transparent;
}
page:

<div class="test">
  <span data-tip-msg="我是测试数据<br>我是测试数据<br>我是测试数据">我是测试数据</span>
</div>

<script>
  $('.test span').tips();
</script>

Kesan:

Di atas ialah pemalam kotak gesaan (Petua) jQuery yang mudah, saya harap anda boleh menggunakannya pada projek anda sendiri dan memperoleh sesuatu.