jQuery UI 1.9中有一个新的工具提示小部件,其API文档暗示可以在其中显示AJAX内容,但没有进一步详细信息。我猜我可以通过同步和阻塞请求来实现类似的功能,但这不是我想要的。
我该如何使它显示通过异步AJAX请求检索到的任何内容?
这是一个jQueryUI tooltip插件的ajax示例,来自我的博客。希望它能有所帮助。
$(document).tooltip({
items:'.tooltip',
tooltipClass:'preview-tip',
position: { my: "left+15 top", at: "right center" },
content:function(callback) {
$.get('preview.php', {
id:id
}, function(data) {
callback(data); //**call the callback function to return the value**
});
},
});
这显然不是一个完整的解决方案,但它展示了在open
事件期间动态获取数据的基本技术:
$('#tippy').tooltip({
content: '... waiting on ajax ...',
open: function(evt, ui) {
var elem = $(this);
$.ajax('/echo/html').always(function() {
elem.tooltip('option', 'content', 'Ajax call complete');
});
}
});
请查看 Fiddle
<body>
<input id="tooltip" title="tooltip here" value="place mouse here">
</body>
JavaScript:
// (1) Define HTML string to be echo'ed by dummy AJAX API
var html_data = "<b>I am a tooltip</b>";
// (2) Attach tooltip functionality to element with id == tooltip
// (3) Bind results of AJAX call to the tooltip
// (4) Specify items: "*" because only the element with id == tooltip will be matched
$( "#tooltip" ).tooltip({
content: function( response ) {
$.ajax({
url: "/echo/html/",
data: {
'html': html_data
},
type: "POST"
})
.then(function( data ) {
response( data );
});
},
items: "*"
});
这是一个关于jsfiddle的示例:
<img class="tooltipclassname" name="tooltipIdentifier" />
$(".tooltipclassname").extension("tooltip");
var ids = "";
var nodes = this;
// Collect all tooltip identifiers into a comma separated string
this.each(function() {
ids = ids + $(this).attr("name") + ",";
});
// Use extension method to call server
$().extension("invoke",
{
// Model and method identify a server class/method to retrieve the tip texts
"model": "ToolTips",
"method": "Get",
// Send tooltipIds parameter
"parms": [ new myParmClass("tipIds", ids ) ],
// Function to call on success. data is a JSON object that my extension builds
// from the server's response
"successFn": function(msg, data) {
$(nodes).each(function(){
// Configure each tooltip:
// - set image source
// - set image title (getstring is my extension method to pull a string from the JSON object, remember that the image's name attribute identifies the text)
// - initialise the tooltip
$(this).attr("src", "images/tooltip.png")
.prop("title", $(data).extension("getstring", $(this).attr("name")))
.tooltip();
});
},
"errorFn": function(msg, data) {
// Do stuff
}
});
// Return the jquery object
return this;