创建事件监听器
对话框、文档、表单或图形控件引发的事件可以链接到宏, 这称为「事件驱动编程」。将事件与宏关联的最常见方法是工具 – 自定义菜单中的 选项卡,以及「工具 - 宏 – 组织对话框...」菜单中的「对话框编辑器」控件属性窗格。
图形元素、键盘输入、鼠标移动以及其他人机交互可以使用监视用户行为的 UNO 监听器来控制。监听器是代替宏分配的动态程序代码。可以根据事件数量的需要,创建不限量的 UNO 监听器。单个监听器也可以处理多个用户界面控件的事件。
创建事件监听器
监听器附加到对话框中的控件, 以及文档或表单事件。在创建运行时对话框或向对话框中动态添加控件时, 也会使用监听器。
本示例为 标准 库中的对话框 Dialog1 的Button1 控件创建监听器。
使用 Python
# -*- coding: utf-8 -*-
from __future__ import unicode_literals
import uno, unohelper
from com.sun.star.awt import XActionListener
from com.sun.star.awt import ActionEvent
from com.sun.star.lang import EventObject
from com.sun.star.ui.dialogs.ExecutableDialogResults \
import OK, CANCEL
import msgbox as util
_MY_BUTTON = "Button1"
_MY_LABEL = 'Python 监听中..'
_DLG_PROVIDER = "com.sun.star.awt.DialogProvider"
def Main(*args):
ui = createUnoDialog("Standard.Dialog1", embedded=True)
ui.Title = "Python X[any]Listener"
ctl = ui.getControl(_MY_BUTTON)
ctl.Model.Label = _MY_LABEL
act = ActionListener()
ctl.addActionListener(act)
rc = ui.execute()
if rc == OK:
MsgBox("用户确认了对话框。")
elif rc == CANCEL:
MsgBox("用户取消了对话框。")
ui.dispose() # ui.endExecute
ctl.removeActionListener(act)
def createUnoDialog(libr_dlg: str, embedded=False):
""" 在对话框位置创建对话框 """
smgr = XSCRIPTCONTEXT.getComponentContext().ServiceManager
if embedded:
model = XSCRIPTCONTEXT.getDocument()
dp = smgr.createInstanceWithArguments(_DLG_PROVIDER, (model,))
location = "?location=document"
else:
dp = smgr.createInstanceWithContext(_DLG_PROVIDER, ctx)
location = "?location=application"
dlg = dp.createDialog("vnd.sun.star.script:"+libr_dlg+location)
return dlg
class ActionListener(unohelper.Base, XActionListener):
""" 监听 & 统计按钮点击 """
def __init__(self):
self.count = 0
def actionPerformed(self, evt: ActionEvent):
self.count = self.count + 1
#mri(evt)
if evt.Source.Model.Name == _MY_BUTTON:
evt.Source.Model.Label = _MY_LABEL+ str( self.count )
return
def disposing(self, evt: EventObject): # 必要的例行程序
pass
def MsgBox(txt: str):
mb = util.MsgBox(uno.getComponentContext())
mb.addButton("Ok")
mb.show(txt, 0, "Python")
g_exportedScripts = (Main,)
「msgbox.py」 (位于「{installation}/program/」目录) 有一些按钮监听器的示例。
使用 LibreOffice Basic
Option Explicit
Const MY_LIBRARY = "Standard", MY_DIALOG = "Dialog1", MY_BUTTON = "Button1"
Const MY_LABEL = "Basic 正在监听.."
Dim count As Integer
Sub Main
Dim libr As Object ' com.sun.star.script.XLibraryContainer
Dim dlg As Object
Dim ui As Object ' stardiv.Toolkit.UnoDialogControl
Dim ctl As Object ' stardiv.Toolkit.UnoButtonControl
Dim act As Object ' com.sun.star.awt.XActionListener
Dim rc As Object : rc = com.sun.star.ui.dialogs.ExecutableDialogResults
BasicLibraries.LoadLibrary(MY_LIBRARY)
libr = DialogLibraries.GetByName(MY_LIBRARY)
dlg = libr.GetByName(MY_DIALOG)
ui = CreateUnoDialog(dlg)
ui.Title = "Basic X[any]Listener example"
count = 0
ctl = ui.GetControl(MY_BUTTON)
ctl.Model.Label = MY_LABEL
act = CreateUnoListener("awt_", "com.sun.star.awt.XActionListener")
ctl.addActionListener(act)
Select Case ui.Execute
Case rc.OK : MsgBox "用户确认了对话框。",, "Basic"
Case rc.CANCEL : MsgBox "用户取消了对话框。",, "Basic"
End Select
ui.dispose ' ui.endExecute()
ctl.removeActionListener(act)
End Sub
Private Sub awt_actionPerformed(evt As com.sun.star.awt.ActionEvent)
''' 监听 & 统计按钮点击 '''
With evt.Source.Model
If .Name = MY_BUTTON Then
count = count + 1
.Label = MY_LABEL+Cstr(count)
End If
End With
End Sub ' awt_actionPerformed
Private Sub awt_disposing(evt As com.sun.star.lang.EventObject) ' mandatory Sub
' 您的代码放在这里
End Sub ' awt_disposing
其他事件监听器
监听器通常与对话框打开代码一起编写。可以创建许多不同的监听器,例如用于对话框的事件处理程序,或用于文档或表单的事件监视器。