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JAVASCRIPT網頁應用程式設計
book

JAVASCRIPT網頁應用程式設計

by Alex MacCaw
January 2013
Intermediate to advanced
332 pages
5h 23m
Chinese
GoTop Information, Inc.
Content preview from JAVASCRIPT網頁應用程式設計
jQuery 入門
|
263
第一個步驟,是先建立一組 div 標籤:
#container
,稍後我們的訊息就會放在這組 div
標籤裡,並且會以向下滑動的方式呈現。這裡我們會需要用到 jQuery jQuery UI 函式
庫(用來新增一些特效)。當網頁載入時,就會把這組用來當作訊息容器的 div 標籤,
加進網頁裡:
//= require <jquery>
//= require <jquery.ui>
(function($){
var container = $("<div />");
container.attr({id: "growl"});
$(function(){
// 載入網頁時,把這組 div 加進 body 標籤裡
$("body").append(container);
});
/* ... */
})(jQuery);
接下來要開始撰寫外掛程式裡的程式邏輯。每當我們有新訊息時,都會把一組新的 div
加進
container
元件裡。而且還要讓訊息以
drop
特效呈現,等訊息出現了一段時間之
後,再以淡出特效消失在畫面上—就像 OS X 上的 Growl 的行為一樣:
$.growl = function(body){
// 新增一組 div 標籤
var msg = $("<div />").addClass("msg");
msg.html(body);
// div 標籤加進清單裡
container.append(msg);
// 設定 drop
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Publisher Resources

ISBN: 9789862766811