jQuery Mobile - iframe 影片

描述

您可以指定一個內聯框架，它可以將文件嵌入到另一個文件中，例如其他來源的內容、廣告等。

示例

以下示例演示了在 jQuery Mobile 框架中使用iframe 影片。

<!DOCTYPE html>
<head>
   <title>iframe Video</title>
      <meta name = "viewport" content = "width = device-width, initial-scale = 1">
      <link rel = "stylesheet" href = "https://code.jquery.com/mobile/1.4.5/jquery.mobile-1.4.5.min.css">
      <script src = "https://code.jquery.com/jquery-1.11.3.min.js"></script>
      <script src = "https://code.jquery.com/mobile/1.4.5/jquery.mobile-1.4.5.min.js"></script>
      
      <script>
         $( document ).on( "pagecreate", function() {
         
            function scale( width, height, padding, border ) {
               var scrWidth = $( window ).width() - 30,
               scrHeight = $( window ).height() - 30,
               ifrPadding = 2 * padding,
               ifrBorder = 2 * border,
               ifrWidth = width + ifrPadding + ifrBorder,
               ifrHeight = height + ifrPadding + ifrBorder,
               h, w;
               
               if ( ifrWidth < scrWidth && ifrHeight < scrHeight ) {
                  w = ifrWidth;
                  h = ifrHeight;
               } else if ( ( ifrWidth / scrWidth ) > ( ifrHeight / scrHeight ) ) {
                  w = scrWidth;
                  h = ( scrWidth / ifrWidth ) * ifrHeight;
               } else {
                  h = scrHeight;
                  w = ( scrHeight / ifrHeight ) * ifrWidth;
               }
               return {
                  'width': w - ( ifrPadding + ifrBorder ),
                  'height': h - ( ifrPadding + ifrBorder )
               };
            };
            
            $( ".ui-popup iframe" )
            .attr( "width", 0 )
            .attr( "height", "auto" );
            
            $( "#popup_video" ).on({
               popupbeforeposition: function() {
               
                  // here calling custom function scale() to get the width and height
                  var size = scale( 497, 298, 15, 1 ),
                  w = size.width,
                  h = size.height;
                  $( "#popup_video iframe" )
                  .attr( "width", w )
                  .attr( "height", h );
               },
               
               popupafterclose: function() {
                  $( "#popup_video iframe" )
                  .attr( "width", 0 )
                  .attr( "height", 0 );
               }
            });
         });
      </script>
   </head>
   
   <body>
      <div data-role = "page">
         <div data-role = "header">
            <h2>Header</h2>
         </div>
         
         <a href = "#popup_video" data-rel = "popup" data-position-to = "window" 
            class = "ui-btn ui-btn-inline">Play Video</a>
         <div data-role = "popup" id = "popup_video" data-theme = "a" 
            data-tolerance = "15,15" class = "ui-content">
            <iframe src = "/jquery_mobile/images/video.mp4" width = "400" 
               height = "200"></iframe>
         </div>
         
         <div data-role = "footer">
            <h2>Footer</h2>
         </div>
         
      </div>
   </body>
</html>

輸出

讓我們執行以下步驟來了解上述程式碼如何工作 -

將上述 HTML 程式碼另存為伺服器根資料夾中的jqm_iframes_video.html 檔案。
將此 HTML 檔案開啟為 https:///jqm_iframes_video.html，將顯示以下輸出。

jquery_mobile_widgets.htm

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