private const byte CFU_UNDERLINEHAIRLINE = 0x0000000A; /* (*) displayed as ordinary underline */
#endregion
#endregion
#region ++ Constructeurs ++
public WebViewerEx()
{
_liensVersHelpActifs = true;
_navigationEnCour = false;
Navigating += new WebBrowserNavigatingEventHandler(Navigation);
Navigated += new WebBrowserNavigatedEventHandler(WebViewerEx_Navigated);
}
/// <summary>
/// Extends BeginInvoke so that when a state object is not needed, null does not need to be passed.
/// <example>
/// webbrowsernavigatingeventhandler.BeginInvoke(sender, e, callback);
/// </example>
/// </summary>
public static IAsyncResult BeginInvoke(this WebBrowserNavigatingEventHandler webbrowsernavigatingeventhandler, Object sender, WebBrowserNavigatingEventArgs e, AsyncCallback callback)
{
if (webbrowsernavigatingeventhandler == null)
{
throw new ArgumentNullException("webbrowsernavigatingeventhandler");
}
return(webbrowsernavigatingeventhandler.BeginInvoke(sender, e, callback, null));
}
protected virtual void OnNavigating(WebBrowserNavigatingEventArgs e)
{
WebBrowserNavigatingEventHandler handler = (WebBrowserNavigatingEventHandler)this.Events[NavigatingEventKey];
if (handler != null)
{
handler(this, e);
}
}
protected virtual void OnNavigating(WebBrowserNavigatingEventArgs e)
{
WebBrowserNavigatingEventHandler navigatingEventHandler = (WebBrowserNavigatingEventHandler)this.Events[RadWebBrowserItem.NavigatingEventKey];
if (navigatingEventHandler == null)
{
return;
}
navigatingEventHandler((object)this, e);
}
/// <summary>
/// 异步执行
/// </summary>
/// <param name="options"></param>
/// <param name="cancellationToken"></param>
/// <returns></returns>
public Task <BrowserResult> InvokeAsync(BrowserOptions options, CancellationToken cancellationToken = default)
{
var tcs = new TaskCompletionSource <BrowserResult>();
WebBrowserNavigatingEventHandler handler = (sender, e) =>
{
if (e.Url.AbsoluteUri.StartsWith(options.EndUrl))
{
tcs.SetResult(new BrowserResult {
ResultType = BrowserResultType.Success, Response = e.Url.ToString()
});
}
};
webBrowser.Navigating += handler;
webBrowser.Navigate(options.StartUrl);
return(tcs.Task.ContinueWith((result) =>
{
webBrowser.Navigating -= handler;
return result.Result;
}));
}
private void InitializeComponent()
{
// pop Twitter's OAuth authentication web page here
var f = this;
var cursor = f.Cursor;
f.Cursor = System.Windows.Forms.Cursors.WaitCursor;
string authzUrlStub =
TwitPicSettings.URL_AUTHORIZE
.Substring(0, TwitPicSettings.URL_AUTHORIZE.LastIndexOf('?'));
Tracing.Trace("authzUrlStub = '{0}'", authzUrlStub);
// event handlers
WebBrowserDocumentCompletedEventHandler docCompleted = (sender, e) => {
Tracing.Trace("web1.completed, url = '{0}'", web1.Url.ToString());
var url2 = web1.Url.ToString();
// It's possible there will be multiple pages in the flow.
if (url2.StartsWith(TwitPicSettings.URL_AUTHORIZE))
{
// The login page has been displayed completely
f.Cursor = cursor;
return;
}
if (url2 == authzUrlStub)
{
// the user has clicked the "allow" or "deny" button
if (web1.DocumentText.Contains("you've denied"))
{
// deny
Tracing.Trace("Access denied.");
web1.Visible = false;
_oauth["token"] = ""; // forget the request token
_oauth["token_secret"] = ""; // forget the secret
f.DialogResult = DialogResult.Cancel;
f.Close();
// The caller is responsible for popping a
// notification - like a MessageBox saying "you
// need to authorize Cropper in order to
// upload".
}
if (web1.DocumentText.Contains("You've successfully granted access"))
{
var divMarker = "<div id=\"oauth_pin\">";
var index = web1.DocumentText.LastIndexOf(divMarker) +
divMarker.Length;
var snip = web1.DocumentText.Substring(index);
var pin = RE.Regex.Replace(snip, "(?s)[^0-9]*([0-9]+).*", "$1").Trim();
Tracing.Trace("Approval. PIN: '{0}'", pin);
web1.Visible = false; // all done with the web UI
GetAccessToken(pin);
}
}
};
WebBrowserNavigatingEventHandler navigating = (sender, e) => {
Tracing.Trace("web1.navigating, url = '{0}'", web1.Url.ToString());
f.Cursor = System.Windows.Forms.Cursors.WaitCursor;
f.Update();
};
// The embedded browser can navigate through HTTP 302
// redirects, download images, and so on. The display will
// initially be blank while it is waiting for downloads and
// redirects. Also, after the user clicks "Login", there's a
// delay. In those cases we want the wait cursor. Only turn
// it off if the status text is "Done."
EventHandler statusChanged = (sender, e) => {
var t = web1.StatusText;
if (t == "Done")
{
f.Cursor = cursor;
}
else if (!String.IsNullOrEmpty(t))
{
Tracing.Trace("web1.status = '{0}'", t);
f.Cursor = System.Windows.Forms.Cursors.WaitCursor;
}
};
web1 = new System.Windows.Forms.WebBrowser();
btnCancel = new System.Windows.Forms.Button();
lblInstructions = new System.Windows.Forms.Label();
//
// web1
//
web1.Location = new System.Drawing.Point(4, 86);
web1.Name = "web1";
web1.DocumentCompleted += docCompleted;
web1.Navigating += navigating;
web1.StatusTextChanged += statusChanged;
web1.Dock = DockStyle.Fill;
//
// lblInstructions
//
lblInstructions.Text = _instructions1;
lblInstructions.ForeColor = System.Drawing.Color.Red;
lblInstructions.AutoSize = true;
lblInstructions.Visible = false;
lblInstructions.Size = new System.Drawing.Size(576, 46);
lblInstructions.Location = new System.Drawing.Point(4, 6);
//
// btnCancel
//
btnCancel.DialogResult = System.Windows.Forms.DialogResult.Cancel;
btnCancel.Location = new System.Drawing.Point(368, 94);
btnCancel.Name = "btnCancel";
btnCancel.Size = new System.Drawing.Size(68, 23);
btnCancel.TabIndex = 71;
btnCancel.Visible = false;
btnCancel.Text = "&Close";
btnCancel.UseVisualStyleBackColor = true;
//
// Form
//
f.Controls.Add(web1);
f.Controls.Add(lblInstructions);
f.Controls.Add(btnCancel);
f.Name = "Authorize";
f.Text = "Authorize the Cropper Plugin for TwitPic";
// size to accommodate the twitter confirmation dialog
f.MinimumSize = new System.Drawing.Size(820, 474);
f.MaximumSize = new System.Drawing.Size(820, 474);
}
private void AuthorizeApp()
{
string url = String.Format(FacebookSettings.AUTHORIZE_URL_FORMAT,
FacebookSettings.APP_ID);
// create and display a new form
var f = new System.Windows.Forms.Form();
var web1 = new System.Windows.Forms.WebBrowser();
f.SuspendLayout();
var cursor = f.Cursor;
f.Cursor = System.Windows.Forms.Cursors.WaitCursor;
// event handlers
WebBrowserDocumentCompletedEventHandler docCompleted = (sender, e) => {
Tracing.Trace("web1.completed, url = '{0}'", web1.Url.ToString());
var url2 = web1.Url.ToString();
// It's possible there will be multiple pages in the flow.
// We want to respond only to the "login_success" page. Don't
// be confused by the name: login_success does not mean "access
// granted."
if (url2.StartsWith("http://www.facebook.com/connect/login_success.html#") ||
url2.StartsWith("http://www.facebook.com/connect/login_success.html?"))
{
web1.Visible = false;
var token =
RE.Regex.Replace(url2,
".+login_success.html#access_token=([^&]+).+",
"$1");
PluginSettings.AccessToken = token;
// If token is null or empty, then The user has declined access.
// Otherwise, then the user has granted access.
// Either way, we want to close the form and return.
f.Close();
}
};
WebBrowserNavigatingEventHandler navigating = (sender, e) => {
Tracing.Trace("web1.navigating, url = '{0}'", web1.Url.ToString());
f.Cursor = System.Windows.Forms.Cursors.WaitCursor;
f.Update();
};
// The embedded browser can navigate through HTTP 302
// redirects, download images, and so on. The display will
// initially be blank while it is waiting for downloads and
// redirects. Also, after the user clicks "Login", there's a
// delay. In those cases we want the wait cursor. Only turn
// it off if the status text is "Done."
EventHandler statusChanged = (sender, e) => {
var t = web1.StatusText;
if (t == "Done")
{
f.Cursor = cursor;
}
else if (!String.IsNullOrEmpty(t))
{
Tracing.Trace("web1.status = '{0}'", t);
f.Cursor = System.Windows.Forms.Cursors.WaitCursor;
}
};
//
// web1
//
web1.Location = new System.Drawing.Point(4, 166);
web1.Name = "web1";
web1.DocumentCompleted += docCompleted;
web1.Navigating += navigating;
web1.StatusTextChanged += statusChanged;
web1.Dock = DockStyle.Fill;
f.Name = "embeddedBrowserForm";
f.Text = "Please approve the Cropper Plugin for Facebook";
f.Icon = global::Cropper.SendToFacebook.Properties.Resources.icon;
f.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
f.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
f.ClientSize = new System.Drawing.Size(460, 320);
f.Controls.Add(web1);
f.ResumeLayout(false);
web1.Url = new Uri(url);
f.ShowDialog(); // this will wait for form exit
}
public ExtendWebBrowser() : base()
{
Navigating += new WebBrowserNavigatingEventHandler(event_Navigating);
}
