101 lines
2.8 KiB
JavaScript
101 lines
2.8 KiB
JavaScript
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/* $This file is distributed under the terms of the license in /doc/license.txt$ */
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/**
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* This tooltip source is modified based on the example of Google map V3. The demo html
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* is at http://philmap.000space.com/gmap-api/poly-hov.html
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*
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* Modification:
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* 1. Init container at constructor class
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* 2. Add feature functions: setHtml, setWidth, setPosition
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*/
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var Tooltip = function(o) {
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var me = this;
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var id = 'tt';
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var top = 3;
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var left = 3;
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var maxw = 300;
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var speed = 10;
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var fadeInTimer = 10;
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var fadeOutTimer = 0;
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var endalpha = 85;
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var alpha = 0;
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var preferredWidth;
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var tt, t, c, b, h, w;
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var opts = {};
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var ie = document.all ? true : false;
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opts = $.extend({}, opts, o);
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tt = document.createElement('div');
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tt.setAttribute('id', id);
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t = document.createElement('div');
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t.setAttribute('id', id + 'top');
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c = document.createElement('div');
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c.setAttribute('id', id + 'cont');
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b = document.createElement('div');
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b.setAttribute('id', id + 'bot');
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tt.appendChild(t);
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tt.appendChild(c);
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tt.appendChild(b);
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document.body.appendChild(tt);
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tt.style.opacity = 0;
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tt.style.filter = 'alpha(opacity=0)';
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return {
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show: function(){
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document.onmousemove = this.pos;
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var w = preferredWidth;
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tt.style.display = 'block';
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tt.style.width = w ? w + 'px' : 'auto';
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if(!w && ie){
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t.style.display = 'none';
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b.style.display = 'none';
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tt.style.width = tt.offsetWidth;
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t.style.display = 'block';
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b.style.display = 'block';
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}
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if(tt.offsetWidth > maxw) { tt.style.width = maxw + 'px' }
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h = parseInt(tt.offsetHeight) + top;
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clearInterval(tt.timer);
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var me = this;
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tt.timer = setInterval( function() { me.fade(1) }, fadeInTimer);
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},
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pos:function(e){
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var u = ie ? event.clientY + document.documentElement.scrollTop : e.pageY;
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var l = ie ? event.clientX + document.documentElement.scrollLeft : e.pageX;
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tt.style.top = (u - h) + 'px';
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tt.style.left = (l + left) + 'px';
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},
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fade:function(d){
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var a = alpha;
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if((a != endalpha && d == 1) || (a != 0 && d == -1)){
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var i = speed;
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if(endalpha - a < speed && d == 1){
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i = endalpha - a;
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}else if(alpha < speed && d == -1){
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i = a;
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}
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alpha = a + (i * d);
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tt.style.opacity = alpha * .01;
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tt.style.filter = 'alpha(opacity=' + alpha + ')';
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}else{
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clearInterval(tt.timer);
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if(d == -1){tt.style.display = 'none'}
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}
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},
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hide:function(){
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clearInterval(tt.timer);
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var me = this;
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tt.timer = setInterval( function(){ me.fade(-1) }, fadeOutTimer);
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},
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setHtml: function(v) {
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c.innerHTML = v;
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},
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setWidth: function(w) {
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preferredWidth = w;
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},
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setPosition: function(x, y) {
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tt.style.top = x + 'px';
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tt.style.left = y + 'px';
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}
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};
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};
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