iframe和彈窗這些詞對于js高手來說都是耳熟能詳?shù)臇|西,作為一個新人來說,
還在學習階段的我就在工作中遇到這么一個奇葩的需求,要在引入的iframe
頁面里做一個全屏化的功能.
粗略一看,這還不容易,模擬下F11的功能鍵什么的,于是網(wǎng)上一搜還真
有一大堆關(guān)于全屏化的案例,遂借來用之.
然后高高興興的拿一個沒有iframe引入的頁面做了個測試頁面查看全屏化功能效果,
代碼如下(fullScreenPage.html):
1 <!DOCTYPE html> 2 <html xmlns="http://www.w3.org/1999/xhtml"> 3 <head> 4 <title>Control Tower</title> 5 <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> 6 </head> 7 <body style="margin: 0px;height: 100%;width: 100%;"> 8 <div id="buttonPanel" style="position: absolute;left: 25%;z-index:100"> 9 <input id="full_screen_open" type="button" value="打開全屏"> 10 <input id="full_screen_close" type="button" value="退出全屏"
style="display: none"> 11 </div> 12 <div id="container" style="display:table;height: 50%;width: 50%;
background-color: #004981;position:absolute;left: 25%;"> 13 <div style="display:table-cell;height: 50%;width: 50%;text-align:
center;vertical-align: middle;border: 2px solid #DDDDDD;"> 14 <font id="font" size="30"></font> 15 </div> 16 </div> 17 </body> 18 <script src="./js/jquery-1.11.3.js" type="text/javascript"></script> 19 <script type="text/javascript"> 20 $("#full_screen_open").on("click",function(){ 21 requestFullScreen($("#container")[’0’]); 22 $("#font").empty(); 23 $("#font").text("已打開全屏化"); 24 }); 25 var requestFullScreen = function(element) { 26 var requestMethod = element.requestFullScreen ||
element.webkitRequestFullScreen || element.mozRequestFullScreen ||
element.msRequestFullScreen; 27 if (requestMethod) { 28 requestMethod.call(element); 29 } else if (typeof window.ActiveXObject !== "undefined") { 30 var wscript = new ActiveXObject("WScript.Shell"); 31 if (wscript !== null) { 32 wscript.SendKeys("{F11}"); 33 } 34 } 35 } 36 </script> 37 </html>
嗯,我自己覺得這個效果真的是不要太棒了,還做了瀏覽器兼容
(FireFox=mozRequestFullScreen;W3C=requestFullscreen;Chrome
等=webkitRequestFullScreen;ie11=msRequestFullscreen).....
于是,我立馬放到項目里,結(jié)果是什么樣子呢?執(zhí)行下面的代碼(parentPage.html)就知道了....
1 <!DOCTYPE html> 2 <html xmlns="http://www.w3.org/1999/xhtml"> 3 <head> 4 <title>Control Tower</title> 5 <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> 6 </head> 7 <body style="margin: 0px;height: 100%;width: 100%;"> 8 <div id="parentContainer" style="height: 75%;width: 75%;
position:absolute;left: 12.5%;border: 2px solid red;"> 9 <!-- 藍色邊框以內(nèi)的內(nèi)容是引入的iframe頁面內(nèi)容,也是需要做全屏化功能的頁面 --> 10 <iframe src="fullScreenPage.html" style="border: 2px solid blue;
height: 100%;width: 100%;"></iframe> 11 </div> 12 </body> 13 </html>
哦豁,好像沒生效,那么為什么呢?
很明顯沒有起作用,那么怎么辦呢?既然引入的子頁面iframe不生效,是不是從父頁面或許就可以了?
那就趕緊試試找到父類并執(zhí)行全屏功能,把頁面(fullScreenPage.html)改一改,代碼如下：
1 <!DOCTYPE html> 2 <html xmlns="http://www.w3.org/1999/xhtml"> 3 <head> 4 <title>Control Tower</title> 5 <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> 6 </head> 7 <body style="margin: 0px;height: 100%;width: 100%;"> 8 <div id="buttonPanel" style="position: absolute;left: 25%;z-index:100"> 9 <input id="full_screen_open" type="button" value="打開全屏"> 10 <input id="full_screen_close" type="button" value="退出全屏" style="display: none"> 11 </div> 12 <div id="container" style="display:table;height: 50%;width: 50%;
background-color: #004981;position:absolute;left: 25%;"> 13 <div style="display:table-cell;height: 50%;width: 50%;text-align: center;
vertical-align: middle;border: 2px solid #DDDDDD;"> 14 <font id="font" size="30"></font> 15 </div> 16 </div> 17 </body> 18 <script src="./scripts/jquery/jquery-1.11.3.js" type="text/javascript"></script> 19 <script type="text/javascript"> 20 $("#full_screen_open").on("click",function(){ 21 /* 獲取父類的document */ 22 var parentDoc = parent.document; 23 /* 定義一個接收元素的變量 */ 24 var thisIframe = null; 25 /* 用jQuery遍歷父類的所有iframe,找到我引入的那個iframe, 26 假設(shè)我不知道是哪個頁面要引入我的iframe,但是引入我的
iframe的src肯定會有引入這個頁面的名字, 27 所以通過這個去檢索,一定能找到引入這個頁面的iframe,
然后把這個iframe的元素全屏化也就是把原來的頁面全屏化 */ 28 $("iframe",window.parent.document).each(function(index,e){ 29 if (e.src.indexOf("fullScreenPage.html") > 0) { 30 thisIframe = e; 31 return false; 32 } 33 }); 34 requestFullScreen(thisIframe); 35 $("#font").empty(); 36 $("#font").text("已打開全屏化"); 37 }); 38 var requestFullScreen = function(element) { 39 var requestMethod = element.requestFullScreen ||
element.webkitRequestFullScreen ||
element.mozRequestFullScreen || element.msRequestFullScreen; 40 if (requestMethod) { 41 requestMethod.call(element); 42 } else if (typeof window.ActiveXObject !== "undefined") { 43 var wscript = new ActiveXObject("WScript.Shell"); 44 if (wscript !== null) { 45 wscript.SendKeys("{F11}"); 46 } 47 } 48 } 49 </script> 50 </html>
哈哈,改了之后發(fā)現(xiàn)果然可以了,問題解決。
jQuery還請自行下載并導入引用,我這里就不細說了.
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