/// <summary>
/// Transform each form element to a HtmlFormTag.
/// </summary>
/// <param name="htmlDoc"> The HTML DOM Document to process.</param>
public static HtmlFormTagCollection TransformFormElements(IHTMLDocument2 htmlDoc, Uri currentUri)
{
// For each form, add in temp FormTags Collection
FormConverter converter = new FormConverter();
HtmlFormTagCollection formCollection = new HtmlFormTagCollection(htmlDoc.forms.length);
try
{
foreach ( HTMLFormElementClass formElement in htmlDoc.forms )
{
System.Windows.Forms.Application.DoEvents();
// Convert to HTML Form Tag
HtmlFormTag form = converter.ConvertToHtmlFormTag(formElement, currentUri);
if ( !formCollection.ContainsKey(form.Name) )
{
formCollection.Add(form.Name, form);
}
}
}
catch (Exception ex)
{
System.Windows.Forms.MessageBox.Show(ex.ToString());
Microsoft.ApplicationBlocks.ExceptionManagement.ExceptionManager.Publish(ex);
}
return formCollection;
}
/// <summary>
/// Loads the forms into a HtmlFormTagCollection.
/// </summary>
/// <param name="html"> The parsed HTML content.</param>
/// <returns> Returns a HtmlFormTagCollection with the forms contained in the HTML.</returns>
public HtmlFormTagCollection LoadForm(string html)
{
HtmlFormTagCollection forms;
try
{
forms = new HtmlFormTagCollection();
XPathDocument doc;
if ( HasForms(html) )
{
doc = this.DocumentCache;
XPathNavigator nav = doc.CreateNavigator();
#region "Set namespaces"
if ( this.NamespaceCache == null)
{
//create prefix<->namespace mappings (if any)
XmlNamespaceManager nsMgr = new XmlNamespaceManager(nav.NameTable);
// resolve namespaces before loading document
Hashtable values = ResolveNamespaces(new XmlTextReader(new StringReader(html)));
foreach (DictionaryEntry de in values)
{
nsMgr.AddNamespace((string)de.Key,(string)de.Value);
}
this.NamespaceCache = nsMgr;
}
#endregion
int i=0;
XPathExpression expr = nav.Compile("//form");
expr.SetContext(this.NamespaceCache);
// select all form elements
XPathNodeIterator nodes = nav.Select(expr);
#region Build Form Tag
while (nodes.MoveNext())
{
HtmlFormTag f = new HtmlFormTag();
f.FormIndex = i;
f.Id=nodes.Current.GetAttribute("id",nodes.Current.NamespaceURI);
f.Style=nodes.Current.GetAttribute("style",nodes.Current.NamespaceURI);
f.Enctype=nodes.Current.GetAttribute("enctype",nodes.Current.NamespaceURI);
f.Class=nodes.Current.GetAttribute("class",nodes.Current.NamespaceURI);
f.Name=nodes.Current.GetAttribute("name",nodes.Current.NamespaceURI);
f.Action=nodes.Current.GetAttribute("action",nodes.Current.NamespaceURI);
f.Method=nodes.Current.GetAttribute("method",nodes.Current.NamespaceURI);
f.Id=nodes.Current.GetAttribute("id",nodes.Current.NamespaceURI);
f.OnSubmit=nodes.Current.GetAttribute("onsubmit",nodes.Current.NamespaceURI);
if (f.Action.Length == 0 )
{
// add dummy action
f.Action = "dummyAction";
}
if ( f.Method.Length==0 )
{
f.Method="get";
}
if ( f.Id!=String.Empty )
{
f.Name = f.Id;
}
if ( forms.ContainsKey(f.Name) )
{
forms.Add("_" + f.Name,f);
}
else
{
if ( f.Name!=String.Empty )
{
forms.Add(f.Name,f);
}
if (f.Id==String.Empty && f.Name == String.Empty )
{
f.Id = "Form " + i;
f.Name = "Form " + i;
forms.Add(f.Name,f);
}
}
#region " Loop thru descendants from Form"
// Select descendants, childs
XPathNodeIterator items = nodes.Current.SelectDescendants(XPathNodeType.Element,true);
int autoId = 0;
while ( items.MoveNext() )
{
// if exists, add to same HtmlTagBaseList type
// else create new
string name = items.Current.GetAttribute("name",items.Current.NamespaceURI);
string id = items.Current.GetAttribute("id",items.Current.NamespaceURI);
string onclick = items.Current.GetAttribute("onclick",items.Current.NamespaceURI);
if ( onclick == String.Empty )
{
onclick = items.Current.GetAttribute("onClick",items.Current.NamespaceURI);
}
// prioritize name use
// else use id
if ( name == String.Empty )
{
name = id;
// if no id, generate one
if ( name == String.Empty )
{
id = autoId.ToString();
name = id;
}
}
switch ( items.Current.Name )
{
case "div":
if ( onclick != String.Empty )
{
AddCommonTag(f,onclick,id,name);
}
break;
case "span":
if ( onclick != String.Empty )
{
AddCommonTag(f,onclick,id,name);
}
break;
case "a":
HtmlALinkTag a = CreateLinkTag(items.Current);
if ( f.ContainsKey(name) )
{
// just add the value
HtmlTagBaseList array = ((HtmlTagBaseList)f[name]);
array.Add(a);
}
else
{
HtmlTagBaseList list = new HtmlTagBaseList();
list.Add(a);
f.Add("a" + autoId.ToString(),list);
}
break;
case "input":
// if exists, add to same HtmlTagBaseList type
// else create new
// verify by name and type
HtmlInputTag input = FillInputTag(items.Current);
input.Name = name;
if ( f.ContainsKey(name) )
{
// just add the value
HtmlTagBaseList array = ((HtmlTagBaseList)f[name]);
array.Add(input);
}
else
{
HtmlTagBaseList list = new HtmlTagBaseList();
//HtmlInputTag input = FillInputTag(items.Current);
list.Add(input);
f.Add(input.Name,list);
}
break;
case "button":
// if exists, add to same HtmlTagBaseList type
// else create new
// verify by name
HtmlButtonTag button = FillButtonTag(items.Current);
button.Name = name;
if ( f.ContainsKey(name) )
{
// just add the value
HtmlTagBaseList array = ((HtmlTagBaseList)f[name]);
//HtmlButtonTag button = FillButtonTag(items.Current);
array.Add(button);
}
else
{
HtmlTagBaseList buttonList = new HtmlTagBaseList();
buttonList.Add(button);
f.Add(button.Name,buttonList);
}
break;
case "select":
// if exists, add to same HtmlTagBaseList type
// else create new
// verify by name
HtmlSelectTag select = CreateSelectTag(items.Current);
select.Name = name;
if ( f.ContainsKey(name) )
{
HtmlTagBaseList array = ((HtmlTagBaseList)f[name]);
array.Add(select);
}
else
{
HtmlTagBaseList selectList = new HtmlTagBaseList();
//HtmlSelectTag select = FillSelectTag(items.Current);
selectList.Add(select);
f.Add(select.Name,selectList);
}
break;
case "textarea":
// if exists, add to same HtmlTagBaseList type
// else create new
// verify by name
HtmlTextAreaTag textarea = FillTextAreaTag(items.Current);
textarea.Name = name;
if ( f.ContainsKey(name) )
{
HtmlTagBaseList array = ((HtmlTagBaseList)f[name]);
//HtmlTextAreaTag textarea = FillTextAreaTag(items.Current);
array.Add(textarea);
}
else
{
HtmlTagBaseList textAreaList = new HtmlTagBaseList();
textAreaList.Add(textarea);
f.Add(textarea.Name,textAreaList);
}
break;
}
// increase
autoId++;
}
i++;
#endregion
}
#endregion
}
}
catch
{
throw;
}
return forms;
}