JavaScript对话框返回

Question

我有一个绘制对话框的JavaScript函数。我想让它返回用户指定的值。问题是，当用户点击两个按钮时，对话框关闭，这两个按钮分配有onClick事件。我知道抓住这些事件的唯一方法是给它们分配函数，这意味着返回会导致指定的函数返回，而不是我的inputDialog函数。我确信我只是以一种愚蠢的方式来做这件事。

如果您想知道，该脚本使用Adobe的ExtendScript API来扩展After Effects。

下面的代码：我想出了一个解决方案

function inputDialog (queryString, title){ 
    // Create a window of type dialog. 
    var dia = new Window("dialog", title, [100,100,330,200]); // bounds = [left, top, right, bottom] 
    this.windowRef = dia; 

    // Add the components, a label, two buttons and input 
    dia.label = dia.add("statictext", [20, 10, 210, 30]); 
    dia.label.text = queryString; 
    dia.input = dia.add("edittext", [20, 30, 210, 50]); 
    dia.input.textselection = "New Selection"; 
    dia.input.active = true; 
    dia.okBtn = dia.add("button", [20,65,105,85], "OK"); 
    dia.cancelBtn = dia.add("button", [120, 65, 210, 85], "Cancel"); 


    // Register event listeners that define the button behavior 

    //user clicked OK 
    dia.okBtn.onClick = function() { 
     if(dia.input.text != "") { //check that the text input wasn't empty 
      var result = dia.input.text; 
      dia.close(); //close the window 
      if(debug) alert(result); 
      return result; 
     } else { //the text box is blank 
      alert("Please enter a value."); //don't close the window, ask the user to enter something 
     } 
    }; 

    //user clicked Cancel 
    dia.cancelBtn.onClick = function() { 
     dia.close(); 
     if(debug) alert("dialog cancelled"); 
     return false; 
    }; 

    // Display the window 
    dia.show(); 

} 

Answer 1

。这真的很难看，但它现在会浪费我......任何人都有更好的解决方案？

var ret = null; 

    // Register event listeners that define the button behavior 
    dia.okBtn.onClick = function() { 
     if(dia.input.text != "") { //check that the text input wasn't empty 
      var result = dia.input.text; 
      dia.close(); //close the window 
      if(debug) alert(result); 
      ret = result; 
      return result; 
     } else { //the text box is blank 
      alert("Please enter a value."); //don't close the window, ask the user to enter something 
     } 
    }; 

    dia.cancelBtn.onClick = function() { //user cancelled action 
     dia.close(); 
     ret = false; 
     return false; 
    }; 

    // Display the window 
    dia.show(); 

    while(ret == null){}; 
    return ret;