Extensions/OpenHelp

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class ...
 
    def open_help(self):
        help_exists = get_configvalue(
            self.cast.ctx,u'/org.openoffice.Office.SFX',u'Help')
        if not help_exists:
            # cannnot open help
            print(u'Faild to open help files. ", "Help system is not supported by the application.')
            return
        system_type = get_configvalue(self.cast.ctx,
            u'/org.openoffice.Office.Common/Help',u'System')
        lang_type = get_configvalue(self.cast.ctx,
            u'/org.openoffice.Setup/L10N',u'ooLocale')
        if not system_type:
            system_type = u'WIN'
        if not lang_type:
            lang_type = get_configvalue(self.cast.ctx,
                u'/org.openoffice.Office.Linguistic/General',u'DefaultLocale')
        
        hpage = u'vnd.sun.star.help://shared/mytools.mri%2Findex.xhp?Language=' + \
            lang_type + u'&System=' + system_type + u'#bm_idindex'
        help_frame = open_help(self.cast.desktop,hpage)
        if not help_frame:
            # retry
            call_dispatch(self.cast.ctx,self.cast.desktop,u'.uno:HelpIndex')
            help_frame = open_help(self.cast.desktop,hpage)
            if not help_frame:
                print(u'Faild to open help files. \nHelp system is not supported by the application.')
                return
        call_dispatch(self.cast.ctx,help_frame,hpage)
 
# open help url (vnd.sun.star.help:...)
def open_help(desktop,url):
    if not desktop: return None
    task_frame = None
    task_frame = desktop.findFrame(u'OFFICE_HELP_TASK',FSF_CHILDREN)
    if not task_frame: return None
    help_frame = None
    help_frame = task_frame.findFrame(u'OFFICE_HELP',FSF_CHILDREN)
    if not help_frame: return None
    
    return help_frame
 
def call_dispatch(ctx,frame,cmdurl):
    from com.sun.star.util import URL
    url = URL()
    url.Complete = cmdurl
    
    transformer = ctx.ServiceManager.createInstanceWithContext(
        u'com.sun.star.util.URLTransformer',ctx)
    dummy,url = transformer.parseStrict(url)
    dispatcher = frame.queryDispatch(url,u'_self',0)
    
    if dispatcher:
        dispatcher.dispatch(url,())
        return True
    return False
 
# read config value from the node and the property name
def get_configvalue(ctx,nodepath,prop):
    from com.sun.star.beans import PropertyValue
    ConfigProvider = ctx.ServiceManager.createInstanceWithContext( 
        u'com.sun.star.configuration.ConfigurationProvider',ctx)
    node = PropertyValue()
    node.Name = u'nodepath'
    node.Value = nodepath
    try:
        ConfigReader = ConfigProvider.createInstanceWithArguments( 
            u'com.sun.star.configuration.ConfigurationAccess',(node,))
        if ConfigReader and (ConfigReader.hasByName(prop)):
            return ConfigReader.getPropertyValue(prop)
    except:
        return None