//
// System.Web.UI.WebControls.Button.cs
//
// Authors:
// Jordi Mas i Hernandez (jordi@ximian.com)
//
// (C) 2005 Novell, Inc (http://www.novell.com)
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:
//
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
using System.ComponentModel;
using System.ComponentModel.Design;
using System.Security.Permissions;
namespace System.Web.UI.WebControls{
// CAS
[AspNetHostingPermissionAttribute (SecurityAction.LinkDemand, Level = AspNetHostingPermissionLevel.Minimal)]
[AspNetHostingPermissionAttribute (SecurityAction.InheritanceDemand, Level = AspNetHostingPermissionLevel.Minimal)]
// attributes
[DefaultEvent ("Click")]
[DataBindingHandler ("System.Web.UI.Design.TextDataBindingHandler, " + Consts.AssemblySystem_Design)]
[DefaultProperty ("Text")]
[Designer ("System.Web.UI.Design.WebControls.ButtonDesigner, " + Consts.AssemblySystem_Design, "System.ComponentModel.Design.IDesigner")]
#if NET_2_0
[ToolboxDataAttribute ("<{0}:Button runat=\"server\" Text=\"Button\"></{0}:Button>")]
[SupportsEventValidation]
#else
[ToolboxDataAttribute ("<{0}:Button runat=server Text=\"Button\"></{0}:Button>")]
#endif
public class Button : WebControl, IPostBackEventHandler
#if NET_2_0
, IButtonControl
#endif
{
static readonly object ClickEvent = new object ();
static readonly object CommandEvent = new object ();
public Button () : base (HtmlTextWriterTag.Input)
{
}
#if ONLY_1_1
[Bindable (false)]
#endif
[WebSysDescription ("")]
[WebCategory ("Behavior")]
[DefaultValue (true)]
#if NET_2_0
[Themeable (false)]
public virtual
#else
public
#endif
bool CausesValidation {
get {
return ViewState.GetBool ("CausesValidation", true);
}
set {
ViewState ["CausesValidation"] = value;
}
}
[DefaultValue ("")]
[Bindable (true)]
[WebSysDescription ("")]
[WebCategory ("Behavior")]
#if NET_2_0
[Themeable (false)]
#endif
public string CommandArgument {
get {
return ViewState.GetString ("CommandArgument", "");
}
set {
ViewState ["CommandArgument"] = value;
}
}
[DefaultValue ("")]
[WebSysDescription ("")]
[WebCategory ("Behavior")]
#if NET_2_0
[Themeable (false)]
#endif
public string CommandName {
get {
return ViewState.GetString ("CommandName", "");
}
set {
ViewState ["CommandName"] = value;
}
}
#if NET_2_0
[Themeable (false)]
[DefaultValue ("")]
[WebSysDescription ("")]
[WebCategoryAttribute ("Behavior")]
public virtual string OnClientClick
{
get {
return ViewState.GetString ("OnClientClick", "");
}
set {
ViewState ["OnClientClick"] = value;
}
}
#endif
[DefaultValue ("")]
[Bindable (true)]
[WebSysDescription ("")]
[WebCategory ("Appearance")]
#if NET_2_0
[Localizable (true)]
#endif
public string Text {
get {
return ViewState.GetString ("Text", "");
}
set {
ViewState ["Text"] = value;
}
}
#if NET_2_0
[DefaultValue (true)]
[Themeable (false)]
[WebSysDescription ("")]
[WebCategoryAttribute ("Behavior")]
public virtual bool UseSubmitBehavior
{
get {
return ViewState.GetBool ("UseSubmitBehavior", true);
}
set {
ViewState ["UseSubmitBehavior"] = value;
}
}
#endif
protected override void AddAttributesToRender (HtmlTextWriter writer) {
if (Page != null)
Page.VerifyRenderingInServerForm (this);
#if NET_2_0
writer.AddAttribute (HtmlTextWriterAttribute.Type, UseSubmitBehavior ? "submit" : "button", false);
writer.AddAttribute (HtmlTextWriterAttribute.Name, UniqueID);
writer.AddAttribute (HtmlTextWriterAttribute.Value, Text);
string onclick = OnClientClick;
onclick = ClientScriptManager.EnsureEndsWithSemicolon (onclick);
if (HasAttributes && Attributes ["onclick"] != null) {
onclick = ClientScriptManager.EnsureEndsWithSemicolon (onclick + Attributes ["onclick"]);
Attributes.Remove ("onclick");
}
if (Page != null) {
onclick += GetClientScriptEventReference ();
}
if (onclick.Length > 0)
writer.AddAttribute (HtmlTextWriterAttribute.Onclick, onclick);
#else
writer.AddAttribute (HtmlTextWriterAttribute.Type, "submit");
writer.AddAttribute (HtmlTextWriterAttribute.Name, UniqueID);
writer.AddAttribute (HtmlTextWriterAttribute.Value, Text);
if (CausesValidation && Page != null && Page.AreValidatorsUplevel ()) {
string onclick = Attributes["onclick"];
if (onclick != null) {
Attributes.Remove("onclick");
int len = onclick.Length;
if (len > 0 && onclick[len - 1] != ';')
onclick += ";";
}
ClientScriptManager csm = new ClientScriptManager (Page);
writer.AddAttribute (HtmlTextWriterAttribute.Onclick, onclick + csm.GetClientValidationEvent ());
writer.AddAttribute ("language", "javascript");
}
#endif
base.AddAttributesToRender (writer);
}
#if NET_2_0
internal virtual string GetClientScriptEventReference ()
{
PostBackOptions options = GetPostBackOptions ();
return Page.ClientScript.GetPostBackEventReference (options, true);
}
protected virtual PostBackOptions GetPostBackOptions ()
{
PostBackOptions options = new PostBackOptions (this);
options.ActionUrl = (PostBackUrl.Length > 0 ?
#if TARGET_J2EE
CreateActionUrl(PostBackUrl)
#else
Page.ResolveClientUrl (PostBackUrl)
#endif
: null);
options.ValidationGroup = null;
options.Argument = String.Empty;
options.RequiresJavaScriptProtocol = false;
options.ClientSubmit = !UseSubmitBehavior;
options.PerformValidation = CausesValidation && Page != null && Page.AreValidatorsUplevel (ValidationGroup);
if (options.PerformValidation)
options.ValidationGroup = ValidationGroup;
return options;
}
#endif
void IPostBackEventHandler.RaisePostBackEvent (string eventArgument)
{
RaisePostBackEvent (eventArgument);
}
protected virtual void OnClick (EventArgs e)
{
if (Events != null) {
EventHandler eh = (EventHandler) (Events [ClickEvent]);
if (eh != null)
eh (this, e);
}
}
protected virtual void OnCommand (CommandEventArgs e)
{
if (Events != null) {
CommandEventHandler eh = (CommandEventHandler) (Events [CommandEvent]);
if (eh != null)
eh (this, e);
}
RaiseBubbleEvent (this, e);
}
#if NET_2_0
protected virtual
#endif
void RaisePostBackEvent (string eventArgument)
{
#if NET_2_0
ValidateEvent (UniqueID, eventArgument);
#endif
if (CausesValidation)
#if NET_2_0
Page.Validate (ValidationGroup);
#else
Page.Validate ();
#endif
OnClick (EventArgs.Empty);
OnCommand (new CommandEventArgs (CommandName, CommandArgument));
}
#if NET_2_0
protected internal override void OnPreRender (EventArgs e)
{
// Why override?
base.OnPreRender (e);
}
#endif
#if NET_2_0
protected internal
#else
protected
#endif
override void RenderContents (HtmlTextWriter writer)
{
}
[WebSysDescription ("")]
[WebCategory ("Action")]
public event EventHandler Click
{
add {
Events.AddHandler (ClickEvent, value);
}
remove {
Events.RemoveHandler (ClickEvent, value);
}
}
[WebSysDescription ("")]
[WebCategory ("Action")]
public event CommandEventHandler Command
{
add {
Events.AddHandler (CommandEvent, value);
}
remove {
Events.RemoveHandler (CommandEvent, value);
}
}
#if NET_2_0
[DefaultValue ("")]
[Editor ("System.Web.UI.Design.UrlEditor, " + Consts.AssemblySystem_Design, "System.Drawing.Design.UITypeEditor, " + Consts.AssemblySystem_Drawing)]
[Themeable (false)]
[UrlProperty("*.aspx")]
public virtual string PostBackUrl {
get {
return ViewState.GetString ("PostBackUrl", "");
}
set {
ViewState ["PostBackUrl"] = value;
}
}
[DefaultValue ("")]
[Themeable (false)]
[WebSysDescription ("")]
[WebCategoryAttribute ("Behavior")]
public virtual string ValidationGroup {
get {
return ViewState.GetString ("ValidationGroup", "");
}
set {
ViewState ["ValidationGroup"] = value;
}
}
#endif
}
}
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