private void tabs_SelectedIndexChanged(object sender, EventArgs e)
{
// Get the current browser.
this.currentBrowser = this.tabs.SelectedWebBrowser;
this.DisplayPageTitle();
// Enable the Close Tab command if and only if there is more than one tab.
if (this.tabs.TabCount == 1)
{
this.closeTabMenuItem.Enabled = false;
this.closeTabButton.Enabled = false;
}
else
{
this.closeTabMenuItem.Enabled = true;
this.closeTabButton.Enabled = true;
}
Uri url = this.currentBrowser.Url;
if (url == null)
{
// There is no current address.
this.addressCombo.Text = string.Empty;
// The user cannot refresh a page that doesn't exist.
this.refreshMenuItem.Enabled = false;
this.refreshButton.Enabled = false;
}
else
{
// Display the current page address in the address bar.
this.addressCombo.Text = url.ToString();
// Allow the user to refresh the current page.
this.refreshMenuItem.Enabled = true;
this.refreshButton.Enabled = true;
}
// Display the current page's status text in the status bar.
this.browserStatusTextLabel.Text = this.currentBrowser.StatusText;
WebBrowserTabPage tab = this.tabs.SelectedWebBrowserTagPage;
long lastCurrentProgress = tab.LastCurrentProgress;
long lastMaximumProgress = tab.LastMaximumProgress;
if (lastMaximumProgress > 0L && lastCurrentProgress > 0L)
{
// Display the current progress.
this.pageLoadProgress.Visible = true;
this.pageLoadProgress.Value = (int)Math.Round(((double)(100 * lastCurrentProgress / lastMaximumProgress)));
}
else
{
// Hide and reset the progress bar
this.pageLoadProgress.Visible = false;
this.pageLoadProgress.Value = 0;
}
}
/// <summary>
/// Adds a new page to the tab control and navigates to the specified address.
/// </summary>
/// <param name="address">
/// The address of the page to display in the new tab.
/// </param>
/// <returns>
/// The <see cref="WebBrowserTabPage" /> that was added.
/// </returns>
public WebBrowserTabPage AddTab(string address)
{
WebBrowserTabPage tab = this.AddTab();
tab.Browser.Navigate(address);
return(tab);
}
/// <summary>
/// Adds a new, empty page to the tab control.
/// </summary>
/// <returns>
/// The <see cref="WebBrowserTabPage" /> that was added.
/// </returns>
public WebBrowserTabPage AddTab()
{
WebBrowserTabPage tab = new WebBrowserTabPage();
this.TabPages.Add(tab);
this.SelectedTab = tab;
return tab;
}
/// <summary>
/// Adds a new, empty page to the tab control.
/// </summary>
/// <returns>
/// The <see cref="WebBrowserTabPage" /> that was added.
/// </returns>
public WebBrowserTabPage AddTab()
{
WebBrowserTabPage tab = new WebBrowserTabPage();
this.TabPages.Add(tab);
this.SelectedTab = tab;
return(tab);
}
/// <summary>
/// Removes the currently selected tab from the tab control.
/// </summary>
/// <returns>
/// <b>True</b> if the current tab was removed; otherwise, <b>False</b>.
/// </returns>
/// <remarks>
/// There must always be at least one tab so the last tab cannot be removed.
/// </remarks>
public bool RemoveCurrentTab()
{
bool canRemove = this.TabCount > 1;
if (canRemove)
{
WebBrowserTabPage tab = this.SelectedWebBrowserTagPage;
this.TabPages.Remove(tab);
tab.Dispose();
}
return(canRemove);
}
