/// <summary>
/// Implements support for data forms. Data Forms are defined in the following XEPs:
///
/// XEP-0004: Data Forms:
/// http://xmpp.org/extensions/xep-0004.html
///
/// XEP-0122: Data Forms Validation:
/// http://xmpp.org/extensions/xep-0122.html
///
/// XEP-0141: Data Forms Layout
/// http://xmpp.org/extensions/xep-0141.html
///
/// XEP-0221: Data Forms Media Element
/// http://xmpp.org/extensions/xep-0221.html
///
/// XEP-0331: Data Forms - Color Field Types
/// http://xmpp.org/extensions/xep-0331.html
///
/// XEP-0336: Data Forms - Dynamic Forms
/// http://xmpp.org/extensions/xep-0336.html
///
/// XEP-0348: Signing Forms:
/// http://xmpp.org/extensions/xep-0348.html
/// </summary>
/// <param name="Client">XMPP Client.</param>
/// <param name="Type">Type of data form.</param>
/// <param name="From">From where the form came.</param>
/// <param name="To">To where the form was sent.</param>
/// <param name="Fields">Data form fields.</param>
public DataForm(XmppClient Client, FormType Type, string From, string To, params Field[] Fields)
{
this.client = Client;
this.onSubmit = null;
this.onCancel = null;
this.type = Type;
this.from = From;
this.to = To;
foreach (Field F in Fields)
{
F.Form = this;
if (!string.IsNullOrEmpty(F.Var))
{
this.fieldsByVar[F.Var] = F;
}
}
this.title = string.Empty;
this.instructions = new string[0];
this.fields = Fields;
this.records = new Field[0][];
this.header = new Field[0];
this.hasPages = false;
this.pages = new Page[] { new Page(this, this.title, this.fields) };
}
/// <summary>
/// This method joins two forms. The current form represents the old form (which is probably being viewed by a user), and <paramref name="NewForm"/>
/// represents the new updated form. The method makes sure values that are currently being edited (and which the server is unaware off) are kept, while
/// all other changes are transferred to the current form.
/// </summary>
/// <param name="NewForm">New version of form.</param>
public void Join(DataForm NewForm)
{
Field[] OldFields = this.fields;
this.fieldsByVar = NewForm.fieldsByVar;
this.type = NewForm.type;
this.fields = NewForm.fields;
this.header = NewForm.header;
this.records = NewForm.records;
this.pages = NewForm.pages;
this.instructions = NewForm.instructions;
this.title = NewForm.title;
foreach (Field OldField in OldFields)
{
if (!this.fieldsByVar.TryGetValue(OldField.Var, out Field NewField))
{
continue;
}
if (!OldField.Edited)
{
continue;
}
NewField.SetValue(OldField.ValueStrings);
}
DataFormEventHandler h = this.OnRemoteUpdate;
if (h != null)
{
try
{
h(this.client, this);
}
catch (Exception ex)
{
this.client.Exception(ex);
}
}
}
/// <summary>
/// Implements support for data forms. Data Forms are defined in the following XEPs:
///
/// XEP-0004: Data Forms:
/// http://xmpp.org/extensions/xep-0004.html
///
/// XEP-0122: Data Forms Validation:
/// http://xmpp.org/extensions/xep-0122.html
///
/// XEP-0141: Data Forms Layout
/// http://xmpp.org/extensions/xep-0141.html
///
/// XEP-0221: Data Forms Media Element
/// http://xmpp.org/extensions/xep-0221.html
///
/// XEP-0331: Data Forms - Color Field Types
/// http://xmpp.org/extensions/xep-0331.html
///
/// XEP-0336: Data Forms - Dynamic Forms
/// http://xmpp.org/extensions/xep-0336.html
///
/// XEP-0348: Signing Forms:
/// http://xmpp.org/extensions/xep-0348.html
/// </summary>
/// <param name="Client">XMPP Client.</param>
/// <param name="X">Data Form definition.</param>
/// <param name="OnSubmit">Method called when the form is submitted.</param>
/// <param name="OnCancel">Method called when the form is cancelled.</param>
/// <param name="From">From where the form came.</param>
/// <param name="To">To where the form was sent.</param>
public DataForm(XmppClient Client, XmlElement X, DataFormEventHandler OnSubmit, DataFormEventHandler OnCancel, string From, string To)
{
List <string> Instructions = new List <string>();
List <Field> Fields = new List <Field>();
List <Field[]> Records = new List <Field[]>();
List <Page> Pages = null;
this.client = Client;
this.onSubmit = OnSubmit;
this.onCancel = OnCancel;
this.from = From;
this.to = To;
switch (XML.Attribute(X, "type").ToLower())
{
case "cancel":
this.type = FormType.Cancel;
break;
case "form":
this.type = FormType.Form;
break;
case "result":
this.type = FormType.Result;
break;
case "submit":
this.type = FormType.Submit;
break;
default:
this.type = FormType.Undefined;
break;
}
foreach (XmlNode N in X.ChildNodes)
{
switch (N.LocalName)
{
case "instructions":
Instructions.Add(N.InnerText.Trim());
break;
case "title":
this.title = N.InnerText.Trim();
break;
case "field":
Field Field = this.ParseField((XmlElement)N, out Media Media);
Fields.Add(Field);
if (Field.PostBack)
{
this.containsPostBackFields = true;
}
if (!string.IsNullOrEmpty(Field.Var))
{
this.fieldsByVar[Field.Var] = Field;
}
if (Media != null)
{
Field = new MediaField(this, Guid.NewGuid().ToString(), string.Empty, false,
null, null, string.Empty, new StringDataType(), new BasicValidation(), Media, string.Empty, false, true, false);
Fields.Add(Field);
this.fieldsByVar[Field.Var] = Field;
this.hasMedia = true;
}
break;
case "reported":
List <Field> Header = new List <Field>();
foreach (XmlNode N2 in N.ChildNodes)
{
if (N2.LocalName == "field")
{
Field = this.ParseField((XmlElement)N2, out Media);
Header.Add(Field);
}
}
this.header = Header.ToArray();
break;
case "item":
List <Field> Record = new List <Field>();
foreach (XmlNode N2 in N.ChildNodes)
{
if (N2.LocalName == "field")
{
Field = this.ParseField((XmlElement)N2, out Media);
Record.Add(Field);
}
}
Records.Add(Record.ToArray());
break;
case "page":
if (Pages == null)
{
Pages = new List <Page>();
}
Pages.Add(new Page(this, (XmlElement)N));
break;
}
}
this.instructions = Instructions.ToArray();
this.fields = Fields.ToArray();
this.records = Records.ToArray();
if (this.header == null)
{
this.header = new Field[0];
}
if (this.hasPages = (Pages != null))
{
this.pages = Pages.ToArray();
}
else if (this.fields.Length > 0)
{
this.pages = new Page[] { new Page(this, this.title, this.fields) }
}
;
else
{
this.pages = new Page[] { new Page(this, this.title, new ReportedReference(this)) }
};
if (this.hasMedia)
{
Dictionary <string, byte[]> Bob = new Dictionary <string, byte[]>(StringComparer.CurrentCultureIgnoreCase);
foreach (XmlNode N in X.ParentNode.ChildNodes)
{
if (N is XmlElement E && E.LocalName == "data" && E.NamespaceURI == BobClient.Namespace)
{
string Cid = XML.Attribute(E, "cid");
byte[] Bin = Convert.FromBase64String(E.InnerText);
Bob["cid:" + Cid] = Bin;
}
}
foreach (Field F in this.fields)
{
if (F is MediaField MediaField && MediaField.Media != null)
{
foreach (KeyValuePair <string, Uri> Uri in MediaField.Media.URIs)
{
switch (Uri.Value.Scheme.ToLower())
{
case "cid":
if (Bob.TryGetValue(Uri.Value.ToString(), out byte[] Bin))
/// <summary>
/// Implements support for data forms. Data Forms are defined in the following XEPs:
///
/// XEP-0004: Data Forms:
/// http://xmpp.org/extensions/xep-0004.html
///
/// XEP-0122: Data Forms Validation:
/// http://xmpp.org/extensions/xep-0122.html
///
/// XEP-0141: Data Forms Layout
/// http://xmpp.org/extensions/xep-0141.html
///
/// XEP-0221: Data Forms Media Element
/// http://xmpp.org/extensions/xep-0221.html
///
/// XEP-0331: Data Forms - Color Field Types
/// http://xmpp.org/extensions/xep-0331.html
///
/// XEP-0336: Data Forms - Dynamic Forms
/// http://xmpp.org/extensions/xep-0336.html
///
/// XEP-0348: Signing Forms:
/// http://xmpp.org/extensions/xep-0348.html
/// </summary>
/// <param name="Client">XMPP Client.</param>
/// <param name="X">Data Form definition.</param>
/// <param name="OnSubmit">Method called when the form is submitted.</param>
/// <param name="OnCancel">Method called when the form is cancelled.</param>
/// <param name="From">From where the form came.</param>
/// <param name="To">To where the form was sent.</param>
public DataForm(XmppClient Client, XmlElement X, DataFormEventHandler OnSubmit, DataFormEventHandler OnCancel, string From, string To)
{
List <string> Instructions = new List <string>();
List <Field> Fields = new List <Field>();
List <Field[]> Records = new List <Field[]>();
List <Page> Pages = null;
this.client = Client;
this.onSubmit = OnSubmit;
this.onCancel = OnCancel;
this.from = From;
this.to = To;
switch (XML.Attribute(X, "type").ToLower())
{
case "cancel":
this.type = FormType.Cancel;
break;
case "form":
this.type = FormType.Form;
break;
case "result":
this.type = FormType.Result;
break;
case "submit":
this.type = FormType.Submit;
break;
default:
this.type = FormType.Undefined;
break;
}
foreach (XmlNode N in X.ChildNodes)
{
switch (N.LocalName)
{
case "instructions":
Instructions.Add(N.InnerText.Trim());
break;
case "title":
this.title = N.InnerText.Trim();
break;
case "field":
Field Field = this.ParseField((XmlElement)N, out Media Media);
Fields.Add(Field);
if (Field.PostBack)
{
this.containsPostBackFields = true;
}
if (!string.IsNullOrEmpty(Field.Var))
{
this.fieldsByVar[Field.Var] = Field;
}
if (!(Media is null))
{
Field = new MediaField(this, Guid.NewGuid().ToString(), string.Empty, false,
null, null, string.Empty, new StringDataType(), new BasicValidation(), Media, string.Empty, false, true, false);
Fields.Add(Field);
this.fieldsByVar[Field.Var] = Field;
this.hasMedia = true;
}
break;
case "reported":
List <Field> Header = new List <Field>();
foreach (XmlNode N2 in N.ChildNodes)
{
if (N2.LocalName == "field")
{
Field = this.ParseField((XmlElement)N2, out Media);
Header.Add(Field);
}
}
this.header = Header.ToArray();
break;
case "item":
List <Field> Record = new List <Field>();
foreach (XmlNode N2 in N.ChildNodes)
{
if (N2.LocalName == "field")
{
Field = this.ParseField((XmlElement)N2, out Media);
Record.Add(Field);
}
}
Records.Add(Record.ToArray());
break;
case "page":
if (Pages is null)
{
Pages = new List <Page>();
}
Pages.Add(new Page(this, (XmlElement)N));
break;
}
}
this.instructions = Instructions.ToArray();
this.fields = Fields.ToArray();
this.records = Records.ToArray();
if (this.header is null)
{
this.header = new Field[0];
}
if (this.hasPages = (!(Pages is null)))
{
this.pages = Pages.ToArray();
}
/// <summary>
/// Sets the form method handlers for the Submit and Cancel methods.
/// </summary>
/// <param name="OnSubmit">Callback method for the Submit method.</param>
/// <param name="OnCancel">Callback method for the Cancel method.</param>
public void SetMethodHandlers(DataFormEventHandler OnSubmit, DataFormEventHandler OnCancel)
{
this.onSubmit = OnSubmit;
this.onCancel = OnCancel;
}
/// <summary>
/// Implements support for data forms. Data Forms are defined in the following XEPs:
///
/// XEP-0004: Data Forms:
/// http://xmpp.org/extensions/xep-0004.html
///
/// XEP-0122: Data Forms Validation:
/// http://xmpp.org/extensions/xep-0122.html
///
/// XEP-0141: Data Forms Layout
/// http://xmpp.org/extensions/xep-0141.html
///
/// XEP-0221: Data Forms Media Element
/// http://xmpp.org/extensions/xep-0221.html
///
/// XEP-0331: Data Forms - Color Field Types
/// http://xmpp.org/extensions/xep-0331.html
///
/// XEP-0336: Data Forms - Dynamic Forms
/// http://xmpp.org/extensions/xep-0336.html
///
/// XEP-0348: Signing Forms:
/// http://xmpp.org/extensions/xep-0348.html
/// </summary>
/// <param name="Client">XMPP Client.</param>
/// <param name="X">Data Form definition.</param>
/// <param name="OnSubmit">Method called when the form is submitted.</param>
/// <param name="OnCancel">Method called when the form is cancelled.</param>
/// <param name="From">From where the form came.</param>
/// <param name="To">To where the form was sent.</param>
public DataForm(XmppClient Client, XmlElement X, DataFormEventHandler OnSubmit, DataFormEventHandler OnCancel, string From, string To)
{
List <string> Instructions = new List <string>();
List <Field> Fields = new List <Field>();
List <Field[]> Records = new List <Field[]>();
List <Page> Pages = null;
this.client = Client;
this.onSubmit = OnSubmit;
this.onCancel = OnCancel;
this.from = From;
this.to = To;
switch (XML.Attribute(X, "type").ToLower())
{
case "cancel":
this.type = FormType.Cancel;
break;
case "form":
this.type = FormType.Form;
break;
case "result":
this.type = FormType.Result;
break;
case "submit":
this.type = FormType.Submit;
break;
default:
this.type = FormType.Undefined;
break;
}
foreach (XmlNode N in X.ChildNodes)
{
switch (N.LocalName)
{
case "instructions":
Instructions.Add(N.InnerText.Trim());
break;
case "title":
this.title = N.InnerText.Trim();
break;
case "field":
Field Field = this.ParseField((XmlElement)N);
Fields.Add(Field);
if (Field.PostBack)
{
this.containsPostBackFields = true;
}
if (!string.IsNullOrEmpty(Field.Var))
{
this.fieldsByVar[Field.Var] = Field;
}
break;
case "reported":
List <Field> Header = new List <Field>();
foreach (XmlNode N2 in N.ChildNodes)
{
if (N2.LocalName == "field")
{
Field = this.ParseField((XmlElement)N2);
Header.Add(Field);
}
}
this.header = Header.ToArray();
break;
case "item":
List <Field> Record = new List <Field>();
foreach (XmlNode N2 in N.ChildNodes)
{
if (N2.LocalName == "field")
{
Field = this.ParseField((XmlElement)N2);
Record.Add(Field);
}
}
Records.Add(Record.ToArray());
break;
case "page":
if (Pages == null)
{
Pages = new List <Page>();
}
Pages.Add(new Page(this, (XmlElement)N));
break;
}
}
this.instructions = Instructions.ToArray();
this.fields = Fields.ToArray();
this.records = Records.ToArray();
if (this.header == null)
{
this.header = new Field[0];
}
if (this.hasPages = (Pages != null))
{
this.pages = Pages.ToArray();
}
else if (this.fields.Length > 0)
{
this.pages = new Page[] { new Page(this, this.title, this.fields) }
}
;
else
{
this.pages = new Page[] { new Page(this, this.title, new ReportedReference(this)) }
};
}
