Exemplo n.º 1
0
        private void MiChannelSettingsClick(object sender, EventArgs e)
        {
            // prevent opening multiple dialogs at the same time
            EnableContextMenuDialogs(false);

            // disable timers
            retrieveTimer.Stop();
            dispTimer.Stop();

            // cancel potential background worker operation
            retriever.backgroundWorker.CancelAsync();

            // show the settings form
            FormChannelSettings formChannelSettings =
                new FormChannelSettings(null);
            DialogResult result = formChannelSettings.ShowDialog();

            // we must renable the menu items before UpdateIcon()
            EnableContextMenuDialogs(true);

            if (result == DialogResult.OK)
            {
                // restore icon properties
                UpdateIcon();

                // setup new rss list
                // since we modified the channel settings file, there must not be an exception
                retriever.InitializeChannels();
            }

            // start background worker thread to retrieve channels
            if (!isPaused)
            {
                // we might get a race condition here, if the worker thread is still not cancelled!
                if (retriever.backgroundWorker.IsBusy == false)
                {
                    // worker already finished, everything fine
                    retriever.backgroundWorker.RunWorkerAsync();
                }
                else
                {
                    // work still pending, we cannot restart right now

                    // in this case, we start the retriever timer and
                    // hope that the worker is finished before the timer expires!
                    retrieveTimer.Start();
                }
            }
        }
Exemplo n.º 2
0
        // constructor of main form
        public FormMain()
        {
            // setup GUI
            InitializeComponent();

            // setup display timer
            dispTimer          = new Timer();
            dispTimer.Tick    += new EventHandler(OnDispTimerTick);
            dispTimer.Enabled  = false;
            dispTimer.Interval = Settings.Default.displayIntervall * 60 * 1000; // intervall in min

            // setup retrieve timer
            retrieveTimer          = new Timer();
            retrieveTimer.Tick    += new EventHandler(OnRetrieverTimerTick);
            retrieveTimer.Enabled  = false;
            retrieveTimer.Interval = Settings.Default.retrieveIntervall * 60 * 1000; // intervall in min

            // setup single click timer
            doubleClickTimer          = new Timer();
            doubleClickTimer.Tick    += new EventHandler(OnDoubleClickTimerTick);
            doubleClickTimer.Enabled  = false;
            doubleClickTimer.Interval = SystemInformation.DoubleClickTime / 2;

            // setup and start the background worker
            retriever = new Retriever();
            retriever.backgroundWorker.RunWorkerCompleted +=
                new System.ComponentModel.RunWorkerCompletedEventHandler(this.RetrieveCompleted);
            retriever.backgroundWorker.ProgressChanged +=
                new System.ComponentModel.ProgressChangedEventHandler(this.RetrieverProgressError);

            // set initial status
            isPaused = Settings.Default.startPaused;

            // set icon and tooltip text
            UpdateIcon();

            // read channel settings
            bool firstStart = retriever.InitializeChannels();

            if (firstStart)
            {
                // display welcome message
                applicationIcon.ShowBalloonTip(
                    Settings.Default.balloonTimespan * 1000,
                    Resources.str_balloonWelcomeHeader,
                    Resources.str_balloonWelcomeBody,
                    ToolTipIcon.Info);
            }

            // check command line args to potentially subscribe to a feed
            foreach (string cmdLineArg in Environment.GetCommandLineArgs())
            {
                if (Uri.IsWellFormedUriString(cmdLineArg, UriKind.Absolute))
                {
                    // show the settings form
                    FormChannelSettings formChannelSettings =
                        new FormChannelSettings(cmdLineArg);
                    formChannelSettings.ShowDialog();

                    // fixme: we can only add a single channel
                    break;
                }
            }

            // load initial channels in background task
            if (!isPaused)
            {
                retriever.backgroundWorker.RunWorkerAsync();
            }
        }