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Prado.WebUI.TInPlaceTextBox = Base.extend(
{
isSaving : false,
isEditing : false,
editField : null,
constructor : function(options)
{
this.options = Object.extend(
{
LoadTextFromSource : false,
TextMode : 'SingleLine'
}, options || {});
this.element = $(this.options.ID);
this.initializeListeners();
},
/**
* Initialize the listeners.
*/
initializeListeners : function()
{
this.onclickListener = this.enterEditMode.bindAsEventListener(this);
Event.observe(this.element, 'click', this.onclickListener);
if (this.options.ExternalControl)
Event.observe($(this.options.ExternalControl), 'click', this.onclickListener);
},
/**
* Changes the panel to an editable input.
* @param {Event} evt event source
*/
enterEditMode : function(evt)
{
if (this.isSaving) return;
if (this.isEditing) return;
this.isEditing = true;
this.onEnterEditMode();
this.createEditorInput();
this.showTextBox();
this.editField.disabled = false;
if(this.options.LoadTextOnEdit)
this.loadExternalText();
Prado.Element.focus(this.editField);
if (evt)
Event.stop(evt);
return false;
},
showTextBox : function()
{
Element.hide(this.element);
Element.show(this.editField);
},
showLabel : function()
{
Element.show(this.element);
Element.hide(this.editField);
},
/**
* Create the edit input field.
*/
createEditorInput : function()
{
if(this.editField == null)
this.createTextBox();
this.editField.value = this.getText();
},
loadExternalText : function()
{
this.editField.disabled = true;
this.onLoadingText();
options = new Array('__InlineEditor_loadExternalText__', this.getText());
request = new Prado.CallbackRequest(this.options.EventTarget, this.options);
request.setCausesValidation(false);
request.setParameter(options);
request.options.onSuccess = this.onloadExternalTextSuccess.bind(this);
request.options.onFailure = this.onloadExternalTextFailure.bind(this);
request.dispatch();
},
/**
* Create a new input textbox or textarea
*/
createTextBox : function()
{
cssClass= this.options.TextBoxCssClass || 'editor_field';
inputName = this.options.EventTarget;
options = {'className' : cssClass, name : inputName, id : this.options.TextBoxID};
this.editField = this.options.TextMode == 'SingleLine' ? INPUT(options) : TEXTAREA(options);
this.editField.style.display="none";
this.element.parentNode.insertBefore(this.editField,this.element)
//handle return key within single line textbox
if(this.options.TextMode == 'SingleLine')
{
Event.observe(this.editField, "keydown", function(e)
{
if(Event.keyCode(e) == Event.KEY_RETURN)
{
var target = Event.element(e);
if(target)
{
Event.fireEvent(target, "blur");
Event.stop(e);
}
}
});
}
Event.observe(this.editField, "blur", this.onTextBoxBlur.bind(this));
},
/**
* @return {String} panel inner html text.
*/
getText: function()
{
return this.element.innerHTML;
},
/**
* Edit mode entered, calls optional event handlers.
*/
onEnterEditMode : function()
{
if(typeof(this.options.onEnterEditMode) == "function")
this.options.onEnterEditMode(this,null);
},
onTextBoxBlur : function(e)
{
text = this.element.innerHTML;
if(text != this.editField.value)
this.onTextChanged(text);
else
{
this.isEditing = false;
this.showLabel();
}
},
/**
* When the text input value has changed.
* @param {String} original text
*/
onTextChanged : function(text)
{
request = new Prado.CallbackRequest(this.options.EventTarget, this.options);
request.setParameter(text);
request.options.onSuccess = this.onTextChangedSuccess.bind(this);
request.options.onFailure = this.onTextChangedFailure.bind(this);
if(request.dispatch())
{
this.isSaving = true;
this.editField.disabled = true;
}
},
/**
* When loading external text.
*/
onLoadingText : function()
{
//Logger.info("on loading text");
},
onloadExternalTextSuccess : function(request, parameter)
{
this.isEditing = true;
this.editField.disabled = false;
this.editField.value = this.getText();
Prado.Element.focus(this.editField);
},
onloadExternalTextFailure : function(request, parameter)
{
this.isSaving = false;
this.isEditing = false;
this.showLabel();
},
/**
* Text change successfully.
* @param {Object} sender
* @param {Object} parameter
*/
onTextChangedSuccess : function(sender, parameter)
{
this.isSaving = false;
this.isEditing = false;
this.showLabel();
this.element.innerHTML = parameter == null ? this.editField.value : parameter;
},
onTextChangedFailure : function(sender, parameter)
{
this.editField.disabled = false;
this.isSaving = false;
this.isEditing = false;
}
});
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