void WebBrowser_Quit(object sender, EventArgs e)
{
// This event is launched when window.close() is called from script
ExtendedWebBrowser brw = sender as ExtendedWebBrowser;
if (brw == null)
{
return;
}
// See which page it was on...
BrowserControl bc = BrowserControlFromBrowser(brw);
if (bc == null)
{
return;
}
TabPage page = bc.Tag as TabPage;
if (page == null)
{
return;
}
// We got a page, remove & dispose it.
_tabControl.TabPages.Remove(page);
page.Dispose();
if (_tabControl.TabPages.Count == 0)
{
_tabControl.Visible = false;
}
}
void WebBrowser_StatusTextChanged(object sender, EventArgs e)
{
// First, see if the active page is calling, or another page
ExtendedWebBrowser ewb = sender as ExtendedWebBrowser;
// Return if we got nothing (shouldn't happen)
if (ewb == null)
{
return;
}
// This is a little nasty. The Extended Web Browser is nested in
// a panel, wich is nested in the browser control
BrowserControl bc = BrowserControlFromBrowser(ewb);
// The Tag of the BrowserControl should point to the TabPage
if (bc != null)
{
TabPage page = bc.Tag as TabPage;
// If not, return
if (page == null)
{
return;
}
// See if 'page' is the active page
if (this._tabControl.SelectedTab == page)
{
// Yep, send the event that updates the status bar text
OnStatusTextChanged(new TextChangedEventArgs(ewb.StatusText));
}
}
}
private void PrintPreview()
{
ExtendedWebBrowser brw = _windowManager.ActiveBrowser;
if (brw != null)
{
brw.ShowPrintPreviewDialog();
}
}
// File -> Open URL
private void openUrlToolStripMenuItem_Click(object sender, EventArgs e)
{
using (OpenUrlForm ouf = new OpenUrlForm())
{
if (ouf.ShowDialog() == DialogResult.OK)
{
ExtendedWebBrowser brw = _windowManager.New(false);
brw.Navigate(ouf.Url);
}
}
}
public BrowserControl()
{
InitializeComponent();
_browser = new ExtendedWebBrowser();
_browser.Dock = DockStyle.Fill;
_browser.DownloadComplete += new EventHandler(_browser_DownloadComplete);
_browser.Navigated += new WebBrowserNavigatedEventHandler(_browser_Navigated);
_browser.StartNewWindow += new EventHandler <BrowserExtendedNavigatingEventArgs>(_browser_StartNewWindow);
_browser.DocumentCompleted += new WebBrowserDocumentCompletedEventHandler(_browser_DocumentCompleted);
this.containerPanel.Controls.Add(_browser);
// Make the magenta color transparent on the go button
Bitmap bmp = (Bitmap)goButton.Image;
bmp.MakeTransparent(Color.Magenta);
}
void WebBrowser_DocumentTitleChanged(object sender, EventArgs e)
{
// Update the title of the tab page of the control.
ExtendedWebBrowser ewb = sender as ExtendedWebBrowser;
// Return if we got nothing (shouldn't happen)
if (ewb == null)
{
return;
}
// This is a little nasty. The Extended Web Browser is nested in
// a panel, wich is nested in the browser control
BrowserControl bc = BrowserControlFromBrowser(ewb);
// If we got null, return
if (bc == null)
{
return;
}
// The Tag of the BrowserControl should point to the TabPage
TabPage page = bc.Tag as TabPage;
// If not, return
if (page == null)
{
return;
}
// Update the tabPage
// Keep it user-friendly, don't do those awful long web page titles
// in tabs and make sure the title is never empty
string documentTitle = ewb.DocumentTitle;
if (string.IsNullOrEmpty(documentTitle))
{
documentTitle = Properties.Resources.DefaultBrowserTitle;
}
else if (documentTitle.Length > 30)
{
documentTitle = documentTitle.Substring(0, 30) + "...";
}
page.Text = documentTitle;
// Set the full title as a tooltip
page.ToolTipText = ewb.DocumentTitle;
}
private static BrowserControl BrowserControlFromBrowser(ExtendedWebBrowser browser)
{
// This is a little nasty. The Extended Web Browser is nested in
// a panel, wich is nested in the browser control
// Since we want to avoid a NullReferenceException, do some checking
// Check if we got a extended web browser
if (browser == null)
{
return(null);
}
// Check if it got a parent
if (browser.Parent == null)
{
return(null);
}
// Return the parent of the parent using a safe cast.
return(browser.Parent.Parent as BrowserControl);
}
void _browser_StartNewWindow(object sender, BrowserExtendedNavigatingEventArgs e)
{
// Here we do the pop-up blocker work
// Note that in Windows 2000 or lower this event will fire, but the
// event arguments will not contain any useful information
// for blocking pop-ups.
// There are 4 filter levels.
// None: Allow all pop-ups
// Low: Allow pop-ups from secure sites
// Medium: Block most pop-ups
// High: Block all pop-ups (Use Ctrl to override)
// We need the instance of the main form, because this holds the instance
// to the WindowManager.
MiniBrowser mf = GetMainFormFromControl(sender as Control);
if (mf == null)
{
return;
}
// Allow a popup when there is no information available or when the Ctrl key is pressed
bool allowPopup = (e.NavigationContext == UrlContext.None) || ((e.NavigationContext & UrlContext.OverrideKey) == UrlContext.OverrideKey);
if (!allowPopup)
{
// Give None, Low & Medium still a chance.
switch (SettingsHelper.Current.FilterLevel)
{
case PopupBlockerFilterLevel.None:
allowPopup = true;
break;
case PopupBlockerFilterLevel.Low:
// See if this is a secure site
if (this.WebBrowser.EncryptionLevel != WebBrowserEncryptionLevel.Insecure)
{
allowPopup = true;
}
else
{
// Not a secure site, handle this like the medium filter
goto case PopupBlockerFilterLevel.Medium;
}
break;
case PopupBlockerFilterLevel.Medium:
// This is the most dificult one.
// Only when the user first inited and the new window is user inited
if ((e.NavigationContext & UrlContext.UserFirstInited) == UrlContext.UserFirstInited && (e.NavigationContext & UrlContext.UserInited) == UrlContext.UserInited)
{
allowPopup = true;
}
break;
}
}
if (allowPopup)
{
// Check wheter it's a HTML dialog box. If so, allow the popup but do not open a new tab
if (!((e.NavigationContext & UrlContext.HtmlDialog) == UrlContext.HtmlDialog))
{
ExtendedWebBrowser ewb = mf.WindowManager.New(false);
// The (in)famous application object
e.AutomationObject = ewb.Application;
}
}
else
{
// Here you could notify the user that the pop-up was blocked
e.Cancel = true;
}
}
public WebBrowserExtendedEvents(ExtendedWebBrowser browser)
{
_Browser = browser;
}
public void Open(Uri url)
{
ExtendedWebBrowser browser = this.New(false);
browser.Navigate(url);
}