egroupware/api/js/etemplate/et2_core_inputWidget.ts

393 lines
8.6 KiB
TypeScript

/**
* EGroupware eTemplate2 - JS Widget base class
*
* @license http://opensource.org/licenses/gpl-license.php GPL - GNU General Public License
* @package etemplate
* @subpackage api
* @link https://www.egroupware.org
* @author Andreas Stöckel
*/
/*egw:uses
/vendor/bower-asset/jquery/dist/jquery.js;
et2_core_interfaces;
et2_core_valueWidget;
*/
import {et2_no_init} from "./et2_core_common";
import {ClassWithAttributes} from "./et2_core_inheritance";
import {et2_widget, WidgetConfig} from "./et2_core_widget";
import {et2_valueWidget} from './et2_core_valueWidget'
import {et2_IInput, et2_ISubmitListener} from "./et2_core_interfaces";
import {et2_compileLegacyJS} from "./et2_core_legacyJSFunctions";
// fixing circular dependencies by only importing the type (not in compiled .js)
import type {Et2Tabs} from "./Layout/Et2Tabs/Et2Tabs";
export interface et2_input
{
getInputNode(): HTMLInputElement | HTMLElement;
}
/**
* et2_inputWidget derrives from et2_simpleWidget and implements the IInput
* interface. When derriving from this class, call setDOMNode with an input
* DOMNode.
*/
export class et2_inputWidget extends et2_valueWidget implements et2_IInput, et2_ISubmitListener, et2_input
{
static readonly _attributes: any = {
"needed": {
"name": "Required",
"default": false,
"type": "boolean",
"description": "If required, the user must enter a value before the form can be submitted"
},
"onchange": {
"name": "onchange",
"type": "js",
"default": et2_no_init,
"description": "JS code which is executed when the value changes."
},
"onfocus": {
"name": "onfocus",
"type": "js",
"default": et2_no_init,
"description": "JS code which get executed when wiget receives focus."
},
"validation_error": {
"name": "Validation Error",
"type": "string",
"default": et2_no_init,
"description": "Used internally to store the validation error that came from the server."
},
"tabindex": {
"name": "Tab index",
"type": "integer",
"default": et2_no_init,
"description": "Specifies the tab order of a widget when the 'tab' button is used for navigating."
},
readonly: {
name: "readonly",
type: "boolean",
"default": false,
description: "Does NOT allow user to enter data, just displays existing data"
}
}
protected _oldValue: any;
onchange: Function;
/**
* Constructor
*/
constructor(_parent, _attrs?: WidgetConfig, _child?: object)
{
// Call the inherited constructor
super(_parent, _attrs, ClassWithAttributes.extendAttributes(et2_inputWidget._attributes, _child || {}));
// mark value as not initialised, so set_value can determine if it is necessary to trigger change event
this._oldValue = et2_no_init;
this._labelContainer = null;
}
destroy()
{
var node = this.getInputNode();
if (node)
{
jQuery(node).unbind("change.et2_inputWidget");
jQuery(node).unbind("focus");
}
super.destroy();
this._labelContainer = null;
}
/**
* Make sure dirty flag is properly set
*/
doLoadingFinished() : boolean | Promise<unknown>
{
let result = super.doLoadingFinished();
this.resetDirty();
return result;
}
/**
* Load the validation errors from the server
*
* @param {object} _attrs
*/
transformAttributes(_attrs)
{
super.transformAttributes(_attrs);
// Check whether an validation error entry exists
if (this.id && this.getArrayMgr("validation_errors"))
{
var val = this.getArrayMgr("validation_errors").getEntry(this.id);
if (val)
{
_attrs["validation_error"] = val;
}
}
}
attachToDOM()
{
var node = this.getInputNode();
if (node)
{
jQuery(node)
.off('.et2_inputWidget')
.bind("change.et2_inputWidget", this, function (e)
{
e.data.change.call(e.data, this);
})
.bind("focus.et2_inputWidget", this, function (e)
{
e.data.focus.call(e.data, this);
});
}
return super.attachToDOM();
// jQuery(this.getInputNode()).attr("novalidate","novalidate"); // Stop browser from getting involved
// jQuery(this.getInputNode()).validator();
}
detatchFromDOM()
{
// if(this.getInputNode()) {
// jQuery(this.getInputNode()).data("validator").destroy();
// }
super.detachFromDOM();
}
change(_node, _widget?, _value?)
{
var messages = [];
var valid = this.isValid(messages);
// Passing false will clear any set messages
this.set_validation_error(valid ? false : messages);
if (valid && this.onchange)
{
if (typeof this.onchange == 'function')
{
// Make sure function gets a reference to the widget
var args = Array.prototype.slice.call(arguments);
if (args.indexOf(this) == -1) args.push(this);
return this.onchange.apply(this, args);
}
else
{
return (et2_compileLegacyJS(this.options.onchange, this, _node))();
}
}
return valid;
}
focus(_node)
{
if (typeof this.options.onfocus == 'function')
{
// Make sure function gets a reference to the widget
var args = Array.prototype.slice.call(arguments);
if (args.indexOf(this) == -1) args.push(this);
return this.options.onfocus.apply(this, args);
}
}
/**
* Set value of widget and trigger for real changes a change event
*
* First initialisation (_oldValue === et2_no_init) is NOT considered a change!
*
* @param {string} _value value to set
*/
set_value(_value: any | null)
{
var node = this.getInputNode();
if (node)
{
jQuery(node).val(_value);
if (this.isAttached() && this._oldValue !== et2_no_init && this._oldValue !== _value)
{
jQuery(node).change();
}
}
this._oldValue = _value;
}
set_id(_value)
{
this.id = _value;
this.dom_id = _value && this.getInstanceManager() ? this.getInstanceManager().uniqueId + '_' + this.id : _value;
// Set the id of the _input_ node (in contrast to the default
// implementation, which sets the base node)
var node = this.getInputNode();
if (node)
{
// Unique ID to prevent DOM collisions across multiple templates
if (_value != "")
{
node.setAttribute("id", this.dom_id);
node.setAttribute("name", _value);
}
else
{
node.removeAttribute("id");
node.removeAttribute("name");
}
}
}
set_needed(_value)
{
var node = this.getInputNode();
if (node)
{
if (_value && !this.options.readonly)
{
jQuery(node).attr("required", "required");
}
else
{
node.removeAttribute("required");
}
}
}
set_validation_error(_value)
{
var node = this.getInputNode();
if (node)
{
if (_value === false)
{
this.hideMessage();
jQuery(node).removeClass("invalid");
}
else
{
this.showMessage(_value, "validation_error");
jQuery(node).addClass("invalid");
// If on a tab, switch to that tab so user can see it
let widget: et2_widget = this;
while (widget.getParent() && widget.getType() !== 'et2-tabbox')
{
widget = widget.getParent();
}
if (widget.getType() == 'et2-tabbox') (<Et2Tabs><unknown>widget).activateTab(this);
}
}
}
/**
* Set tab index
*
* @param {number} index
*/
set_tabindex(index)
{
jQuery(this.getInputNode()).attr("tabindex", index);
}
getInputNode()
{
return this.node;
}
get_value()
{
return this.getValue();
}
getValue()
{
var node = this.getInputNode();
if (node)
{
var val = jQuery(node).val();
return val;
}
return this._oldValue;
}
isDirty()
{
let value = this.getValue();
if (typeof value !== typeof this._oldValue)
{
return true;
}
if (this._oldValue === value)
{
return false;
}
switch (typeof this._oldValue)
{
case "object":
if (typeof this._oldValue.length !== "undefined" &&
this._oldValue.length !== value.length
)
{
return true;
}
for (let key in this._oldValue)
{
if (this._oldValue[key] !== value[key]) return true;
}
return false;
default:
return this._oldValue != value;
}
}
resetDirty()
{
this._oldValue = this.getValue();
}
isValid(messages)
{
var ok = true;
// Check for required
if (this.options && this.options.needed && !this.options.readonly && !this.disabled &&
(this.getValue() == null || this.getValue().valueOf() == ''))
{
messages.push(this.egw().lang('Field must not be empty !!!'));
ok = false;
}
return ok;
}
/**
* Called whenever the template gets submitted. We return false if the widget
* is not valid, which cancels the submission.
*
* @param _values contains the values which will be sent to the server.
* Listeners may change these values before they get submitted.
*/
submit(_values)
{
var messages = [];
var valid = this.isValid(messages);
// Passing false will clear any set messages
this.set_validation_error(valid ? false : messages);
return valid;
}
}