我使用了Ext的快速提示来制作这个自定义工具提示，当有一个带有＆＃39; my_tip＆＃39;的元素时，它应显示工具提示。属性。
例如，
<div class="some class" my_tip="This is my tip text">
加载页面时，会将以下标记添加到HTML中，这是正确的：
<div class="x-layer my_tool_tip_layer" id="ext-gen7" style="position: absolute; z-index: 20000; visibility: hidden; left: -10000px; top: -10000px;">
<div class="my_tool_tip" id="ext-gen8"> </div>
</div>
当我将鼠标悬停在带有＆＃39; my_tip＆＃39;的元素上时，会发生什么？属性，它应该更新上面div的样式属性，并用my_tip类的内容替换。＆lt; nbsp。
像这样：
<div class="x-layer my_tool_tip_layer displayed" id="ext-gen7" style="position: absolute; z-index: 20000; visibility: visible; left: 160px; top: 30px;">
<div class="my_tool_tip" id="ext-gen8">This is my tip text</div>
</div>
我有一个css文件处理工具提示的样式，但我现在的问题是让html更新为正确的事件，而不是这样做。
以下是工具提示的javascript。非常感谢任何帮助。
谢谢
myToolTips=function()
{
var mytt_ext_lyr=null;
var mytt_text_el=null;
var mytt_visible=false;
var mytt_hide_proc=null;
var mytt_show_proc=null;
var mytt_tip_text='';
var mytt_hide_delay = 10000;
var mytt_show_delay = 200;
var mytt_started = false;
var mytt_last_xy = null;
var mytt_mouse_y_offset = 20;
var mytt_track_mouse = false;
var mytt_initialized = false;
var mytt_singleton = null;
var mytt_max_search_depth = 5;
var on_over = function(evt) {
var target = evt.target;
var depth = 0;
while (target && target.nodeType == 1 && !target.getAttribute('my_tip') && depth < mytt_max_search_depth) {
++depth;
target = target.parentNode;
}
if (!target || target.nodeType != 1 || !target.getAttribute('my_tip')) {
if (mytt_visible)
hide();
return;
}
var new_tip = target.getAttribute('my_tip');
if (new_tip != mytt_tip_text && mytt_visible)
hide();
if (target.getAttribute('clip_tip') && target.getAttribute('clip_tip') == 'true') {
for (var i = 0; i < target.childNodes.length; ++i) {
var child = target.childNodes[i];
if (child.scrollWidth <= child.offsetWidth) {
return;
} else {
break;
}
}
}
if (target.getAttribute('clip_tip') && target.getAttribute('clip_tip') == 'this_node') {
if (target.scrollWidth <= target.offsetWidth)
return;
}
var mouse_xy = evt.getXY();
var tip = {mouse_xy: mouse_xy, new_tip: new_tip, target: target}
mytt_show_proc = show.defer(mytt_show_delay, mytt_singleton, [tip]);
mytt_started = true;
};
var on_move = function (evt) {
if (mytt_visible) {
if (mytt_track_mouse) {
var mouse_xy = evt.getXY();
mouse_xy[1] += mytt_mouse_y_offset;
mytt_ext_lyr.setXY(mouse_xy);
}
}
else if (mytt_started)
mytt_last_xy = evt.getXY();
};
var on_out=function(evt) {
hide();
};
var on_click = function(evt) {
var target = evt.target;
var depth = 0;
while (target && target.nodeType == 1 && !target.getAttribute('my_tip') && depth < mytt_max_search_depth) {
++depth;
target = target.parentNode;
}
if (!target || target.nodeType != 1 || !target.getAttribute('my_tip'))
hide();
};
var show=function(mytt) {
var tip=mytt.new_tip;
var mouse_xy=mytt.mouse_xy;
if(mytt_last_xy)
mouse_xy=mytt_last_xy;
if(!mytt_visible) {
if(tip) {
mytt_tip_text=tip;
mytt_text_el.update(mytt_tip_text.replace(/\[\[/g,"<").replace(/\]\]/g,">"));
}
mytt_ext_lyr.show();
mytt_ext_lyr.addClass('displayed');
mytt_visible=true;
if(!mytt_hide_proc)
mytt_hide_proc=setTimeout(hide,mytt_hide_delay);
}
var db=Ext.get(document.body);
var dw=db.getWidth();
var dh=db.getHeight();
if (mytt.target.getAttribute('top_tip') === 'true') {
var telm = Ext.get(mytt.target);
var left = telm.getLeft();
var width_diff = db.getWidth() - (left + mytt_ext_lyr.getWidth());
if (width_diff < 5)
left+=width_diff-15;
mytt_ext_lyr.dom.style.right='';
mytt_ext_lyr.dom.style.top='';
mytt_ext_lyr.dom.style.left=left+'px';
mytt_ext_lyr.dom.style.bottom=(dh-telm.getTop())+'px';
mytt_ext_lyr.sync();
}
else {
mouse_xy[1]+=mytt_mouse_y_offset;
var width_diff=db.getWidth()-(mouse_xy[0]+mytt_ext_lyr.getWidth());
if(width_diff<5)
mouse_xy[0]+=width_diff-15;
mytt_ext_lyr.setXY(mouse_xy);
}
if(mytt_show_proc) {
clearTimeout(mytt_show_proc);
mytt_show_proc=null;
}
};
var hide=function() {
mytt_ext_lyr.hide();
mytt_ext_lyr.removeClass('displayed');
mytt_visible=false;
mytt_started=false;
mytt_last_xy=null;
if(mytt_hide_proc) {
clearTimeout(mytt_hide_proc);
mytt_hide_proc=null;
}
if(mytt_show_proc) {
clearTimeout(mytt_show_proc);
mytt_show_proc=null;
}
};
return {
init:function() {
mytt_singleton=myToolTips;
if(!mytt_initialized) {
if(!Ext.isReady) {
Ext.onReady(myToolTips.init,myToolTips);
return;
}
mytt_ext_lyr=new Ext.Layer({cls:'my_tool_tip_layer',shim:true,constrain:true});
mytt_ext_lyr.fxDefaults={stopFx:true};
mytt_ext_lyr.update('<div class="my_tool_tip"> </div>');
mytt_text_el=mytt_ext_lyr.child('div.my_tool_tip');
mytt_text_el.update(' ');
var doc=Ext.get(document);
doc.on('mouseover',on_over);
doc.on('mouseout',on_out);
doc.on('mousemove',on_move);
doc.on('click',on_click);
mytt_initialized=true;
}
},
ready:function() {
return mytt_initialized;
}
};
}();
// make tooltips work
myToolTips.init();