internal void SetUpClickableControl( WebControl clickableControl )
{
if( resource == null && postBack == null && script == "" )
return;
clickableControl.CssClass = clickableControl.CssClass.ConcatenateWithSpace( "ewfClickable" );
if( resource != null && EwfPage.Instance.IsAutoDataUpdater ) {
postBack = EwfLink.GetLinkPostBack( resource );
resource = null;
}
Func<string> scriptGetter;
if( resource != null )
scriptGetter = () => "location.href = '" + EwfPage.Instance.GetClientUrl( resource.GetUrl() ) + "'; return false";
else if( postBack != null ) {
EwfPage.Instance.AddPostBack( postBack );
scriptGetter = () => PostBackButton.GetPostBackScript( postBack );
}
else
scriptGetter = () => script;
// Defer script generation until after all controls have IDs.
EwfPage.Instance.PreRender += delegate { clickableControl.AddJavaScriptEventScript( JsWritingMethods.onclick, scriptGetter() ); };
}
void ControlTreeDataLoader.LoadData()
{
var isTextarea = rows > 1;
textBox = new WebControl( isTextarea ? HtmlTextWriterTag.Textarea : HtmlTextWriterTag.Input );
PreRender += delegate {
if( !isTextarea )
textBox.Attributes.Add( "type", masksCharacters ? "password" : "text" );
textBox.Attributes.Add( "name", UniqueID );
if( isTextarea )
textBox.Attributes.Add( "rows", rows.ToString() );
if( maxLength.HasValue )
textBox.Attributes.Add( "maxlength", maxLength.Value.ToString() );
if( readOnly )
textBox.Attributes.Add( "readonly", "readonly" );
if( disableBrowserAutoComplete || autoCompleteService != null )
textBox.Attributes.Add( "autocomplete", "off" );
if( suggestSpellCheck.HasValue )
textBox.Attributes.Add( "spellcheck", suggestSpellCheck.Value.ToString().ToLower() );
var value = formValue.GetValue( AppRequestState.Instance.EwfPageRequestState.PostBackValues );
var valueOrWatermark = watermarkText.Any() && !value.Any() ? watermarkText : value;
if( isTextarea )
AddTextareaValue( textBox, valueOrWatermark );
else if( !masksCharacters )
textBox.Attributes.Add( "value", valueOrWatermark );
};
Controls.Add( textBox );
if( watermarkText.Any() ) {
textBox.AddJavaScriptEventScript( JsWritingMethods.onfocus, "if( value == '" + watermarkText + "' ) value = ''" );
textBox.AddJavaScriptEventScript( JsWritingMethods.onblur, "if( value == '' ) value = '" + watermarkText + "'" );
EwfPage.Instance.ClientScript.RegisterOnSubmitStatement(
GetType(),
UniqueID + "watermark",
"$( '#" + textBox.ClientID + "' ).filter( function() { return this.value == '" + watermarkText + "'; } ).val( '' )" );
}
var jsNeededForImplicitSubmission = postBack != null || autoPostBack ||
( autoCompleteService != null && autoCompleteOption == AutoCompleteOption.PostBackOnTextChangeAndItemSelect );
if( postBack == null && ( autoPostBack || ( autoCompleteService != null && autoCompleteOption != AutoCompleteOption.NoPostBack ) ) )
postBack = EwfPage.Instance.DataUpdatePostBack;
if( postBack != null )
EwfPage.Instance.AddPostBack( postBack );
PreRender += delegate { PostBackButton.EnsureImplicitSubmission( this, jsNeededForImplicitSubmission ? postBack : null ); };
if( autoPostBack || ( autoCompleteService != null && autoCompleteOption == AutoCompleteOption.PostBackOnTextChangeAndItemSelect ) ) {
PreRender += delegate {
// Use setTimeout to prevent keypress and change from *both* triggering post-backs at the same time when Enter is pressed after a text change.
textBox.AddJavaScriptEventScript(
JsWritingMethods.onchange,
"setTimeout( function() { " + PostBackButton.GetPostBackScript( postBack, includeReturnFalse: false ) + "; }, 0 )" );
};
}
if( ToolTip != null || ToolTipControl != null )
new ToolTip( ToolTipControl ?? EnterpriseWebFramework.Controls.ToolTip.GetToolTipTextControl( ToolTip ), textBox );
}
internal static void AddCheckBoxAttributes( WebControl checkBoxElement, Control checkBox, FormValue<bool> checkBoxFormValue,
FormValue<CommonCheckBox> radioButtonFormValue, string radioButtonListItemId, PostBack postBack, bool autoPostBack,
IEnumerable<string> onClickJsMethods)
{
checkBoxElement.Attributes.Add( "type", checkBoxFormValue != null ? "checkbox" : "radio" );
checkBoxElement.Attributes.Add( "name", checkBoxFormValue != null ? checkBox.UniqueID : ( (FormValue)radioButtonFormValue ).GetPostBackValueKey() );
if( radioButtonFormValue != null )
checkBoxElement.Attributes.Add( "value", radioButtonListItemId ?? checkBox.UniqueID );
if( checkBoxFormValue != null
? checkBoxFormValue.GetValue( AppRequestState.Instance.EwfPageRequestState.PostBackValues )
: radioButtonFormValue.GetValue( AppRequestState.Instance.EwfPageRequestState.PostBackValues ) == checkBox )
checkBoxElement.Attributes.Add( "checked", "checked" );
PostBackButton.EnsureImplicitSubmission( checkBoxElement, postBack );
var isSelectedRadioButton = radioButtonFormValue != null &&
radioButtonFormValue.GetValue( AppRequestState.Instance.EwfPageRequestState.PostBackValues ) == checkBox;
var postBackScript = autoPostBack && !isSelectedRadioButton
? PostBackButton.GetPostBackScript( postBack ?? EwfPage.Instance.DataUpdatePostBack, includeReturnFalse: false )
: "";
var customScript = StringTools.ConcatenateWithDelimiter( "; ", onClickJsMethods.ToArray() );
checkBoxElement.AddJavaScriptEventScript( JsWritingMethods.onclick, StringTools.ConcatenateWithDelimiter( "; ", postBackScript, customScript ) );
}
/// <summary>
/// Ensures that the specified control will submit the form when the enter key is pressed while the control has focus. Specify null for the post-back to
/// rely on HTML's built-in implicit submission behavior, which will simulate a click on the submit button.
/// </summary>
internal static void EnsureImplicitSubmission( WebControl control, PostBack postBack, string predicate = "" )
{
if( postBack != null ) {
control.AddJavaScriptEventScript(
JsWritingMethods.onkeypress,
"if( event.which == 13 " + predicate.PrependDelimiter( " && " ) + " ) { " + GetPostBackScript( postBack ) + "; }" );
return;
}
if( EwfPage.Instance.SubmitButtonPostBack != null )
return;
var sentences = new[]
{
"EWF does not allow form controls to use HTML's built-in implicit submission on a page with no submit button.", "There are two reasons for this.",
"First, the behavior of HTML's implicit submission appears to be somewhat arbitrary when there is no submit button; see http://www.whatwg.org/specs/web-apps/current-work/multipage/association-of-controls-and-forms.html#implicit-submission.",
"Second, we don't want the implicit submission behavior of form controls to unpredictably change if a submit button is added or removed."
};
throw new ApplicationException( StringTools.ConcatenateWithDelimiter( " ", sentences ) );
}
