Question

以下是用于使用键控制音频的java脚本函数，现在我如何在另一个java脚本函数中调用普通的java脚本函数

var editor = document.getElementById("CKEditor1");
editor.on('contentDom', function () {
  editor.document.on('keydown', function (event) {
        if (event.data.key == 32)
            alert('space bar pressed');
   });
});

Answer 1

var editor = document.getElementById("CKEditor1");
editor.on('contentDom', function () {
   editor.document.on('keydown', function (event) {
       if (event.data.key == 32)
           alert('space bar pressed');
 });
});

Answer 2

您应该直接调用函数，如下例所示：

 <script  type = "text/javascript">//final
         $(document).ready(function () {
             CKEDITOR.on('instanceCreated', function (e) {
                 e.editor.on('contentDom', function () {
                     e.editor.document.on('keydown', function (event) {
                         var x = event.data.$.keyCode; 
                         if (x == 32) {
                             alert('spacebar is pressed');
                             return true;
                         } else if (x == 115) {
                             if (audio.paused) {
                                 audio.play();//f4
                             } else {
                                 audio.pause()
                             }
                         } else if (x == 119) {
                             // Log before the function
                             console.log("calling Forward()");
                             Forward();//F8
                             // Log after the function
                             console.log("after Forward()");
                          } else if (x == 120) {
                             // Log before the function
                             console.log("calling Slow()");
                             Slow();//F9
                             // Log after the function
                             console.log("after Slow()");
                          }

                         var count = 0;

                     });
                 });
             });

         });

</script>

对于其他功能，你应该做类似的工作。

当您绑定'keydown'事件时，您必须考虑第二个代码段的一部分：

window.addEventListener("keydown", function (e) {
    // space, page up, page down and arrow keys:
    if ([32, 33, 34, 37, 38, 39, 40].indexOf(e.keyCode) > -1) {
        e.preventDefault();
    }
}, false);

此处的键代码是注释所示的箭头，您也可以从site轻松查看。

所以你应该把你的代码放在这里：

window.addEventListener("keydown", function (e) {
    // space, page up, page down and arrow keys:
    if ([32, 33, 34, 37, 38, 39, 40].indexOf(e.keyCode) > -1) {

        console.log("You pressed " + e.keyCode);

        // I assume right arrow for forward
        if (x == 39) {
            // Log before the function
            console.log("calling Forward()");
            Forward();//F8
            // Log after the function
            console.log("after Forward()");
         } else if (x == 37) { // left arrow to slow
            // Log before the function
            console.log("calling Slow()");
            Slow();//F9
            // Log after the function
            console.log("after Slow()");
         }

         // then prevent to continue the other event handlers to avoid scrolling.
        e.preventDefault();
    }
}, false);

如何在另一个脚本中调用一个javascript

2 个答案: