在Ruby中使用浏览器作为GUI [英] use browser as GUI in Ruby

问题描述

在vbscript中，通常使用浏览器（IE）作为GUI。
请参阅下面的示例，它要求输入名称并将其返回给脚本。在Ruby中你有一些像Tcl和Shoes的GUI，但我想知道如何在浏览器中这样做。什么是最简单的Ruby解决方案？所以没有exta gems或package，没有已经运行的服务器..如果需要gem，最好是在Windows中运行而没有问题。

In vbscript it is common to use the browser (IE) as a GUI. See the example below, it asks for a name and returns it to the script. In Ruby you have a few GUI's like Tcl and Shoes but i wonder how to do this in the browser. What is the simplest Ruby solution to do this ? So no exta gems or packages, no server that is allready running.. If a gem is needed, preferably one that works in Windows without problems.

这里的vbscript示例

Here the vbscript sample

Set web = CreateObject("InternetExplorer.Application")
If web Is Nothing Then
  msgbox("Error while loading Internet Explorer")
  Wscript.Quit
Else
  with web
    .Width = 300
    .Height = 175
    .Offline = True
    .AddressBar = False
    .MenuBar = False
    .StatusBar = False
    .Silent = True
    .ToolBar = False
    .Navigate "about:blank"
    .Visible = True
  end with
End If

'Wait for the browser to navigate to nowhere
Do While web.Busy
  Wscript.Sleep 100
Loop

'Wait for a good reference to the browser document
Set doc = Nothing
Do Until Not doc Is Nothing
  Wscript.Sleep 100
  Set doc = web.Document
Loop

'Write the HTML form
doc.Write "Give me a name<br><form><input type=text name=name ><input type=button name=submit id=submit value='OK' onclick='javascript:submit.value=""Done""'></form>"
Set oDoc = web.Document
Do Until oDoc.Forms(0).elements("submit").Value <> "OK"
  Wscript.Sleep 100
  If web Is Nothing or Err.Number <> 0 Then
    msgbox "Window closed"
    Wscript.Quit
  End If
Loop
name = oDoc.Forms(0).elements("name").value
oDoc.close
set oDoc = nothing
web.quit
set web = nothing
Wscript.echo "Hello " & name

推荐答案

您可以使用Watir gem。该gem原本打算用于驱动IE浏览器，但可以满足您的需求。

You could use the Watir gem. The gem was originally intended to drive the IE browser, but would fit your need.

要查看：

1）安装Watir gem

1) Install the Watir gem

2）创建一个test.htm文件，其中包含以下内容：

2) Create a test.htm file with the following:

Give me a name<br>
<form name="myForm" title="myForm">
    <input type="text" id="name" >
    <input id="submit" type="button" value="OK" onclick='document.myForm.submit.value="Done"'>
</form>

3）运行以下watir脚本，它将打开浏览器到您的表单。输入名称后单击[确定]，输出名称。请注意，您可能需要根据保存test.htm的位置更改脚本中文件的位置：

3) Run the following watir script, which will open the browser to your form. After you input the name and click [OK], the name is outputted. Note that you may need to change the location of the file in the script depending on where you saved your test.htm:

require 'watir'

b = Watir::IE.new
begin
    b.goto('file:///C:/Documents%20and%20Settings/Setup/Desktop/test.htm')
    begin
        sleep(5)
    end until b.button(:id, 'submit').value != "OK"
    name = b.text_field.value
ensure
    b.close
end
puts name

我认为这表明了做你想做的事情的一般可行性。也可以验证和动态创建表格。

I think this shows the general feasibility of doing what you want. Validation and dynamic creation of the forms would also be possible.

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