egroupware/api/js/etemplate/et2_widget_button.ts

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2020-01-21 15:54:26 +01:00
/**
* EGroupware eTemplate2 - JS Button object
*
* @license http://opensource.org/licenses/gpl-license.php GPL - GNU General Public License
* @package etemplate
* @subpackage api
* @link http://www.egroupware.org
* @author Andreas Stöckel
*/
/*egw:uses
/vendor/bower-asset/jquery/dist/jquery.js;
et2_core_interfaces;
et2_core_baseWidget;
*/
import './et2_core_common';
import {ClassWithAttributes} from "./et2_core_inheritance";
import {et2_createWidget, et2_register_widget, WidgetConfig} from "./et2_core_widget";
import {et2_baseWidget} from './et2_core_baseWidget'
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import './et2_types';
/**
* Class which implements the "button" XET-Tag
*/
export class et2_button extends et2_baseWidget implements et2_IInput, et2_IDetachedDOM
{
static readonly _attributes : any = {
"label": {
"name": "caption",
"type": "string",
"description": "Label of the button",
"translate": true
},
"image": {
"name": "Icon",
"type": "string",
"description": "Use an icon instead of label (when available)"
},
"ro_image": {
"name": "Read-only Icon",
"type": "string",
"description": "Use this icon instead of hiding for read-only"
},
"onclick": {
"description": "JS code which gets executed when the button is clicked",
"type": "js"
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},
"accesskey": {
"name": "Access Key",
"type": "string",
"default": et2_no_init,
"description": "Alt + <key> activates widget"
},
"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."
},
background_image: {
name: "Add image in front of text",
type: "boolean",
description: "Adds image in front of text instead of just using an image with text as tooltip",
default: et2_no_init // to leave it undefined, if not defined, so background-image is assigned by default
},
novalidate: {
name: "Do NOT validate form",
type: "boolean",
description: "Do NOT validate form before submitting it",
default: false
},
// No such thing as a required button
"needed": {
"ignore": true
}
};
legacyOptions: string[] = ["image", "ro_image"];
/**
* images to be used as background-image, if none is explicitly applied and id matches given regular expression
*/
static readonly default_background_images: object = {
save: /save(&|\]|$)/,
apply: /apply(&|\]|$)/,
cancel: /cancel(&|\]|$)/,
delete: /delete(&|\]|$)/,
discard: /discard(&|\]|$)/,
edit: /edit(&|\[\]|$)/,
next: /(next|continue)(&|\]|$)/,
finish: /finish(&|\]|$)/,
back: /(back|previous)(&|\]|$)/,
copy: /copy(&|\]|$)/,
more: /more(&|\]|$)/,
check: /(yes|check)(&|\]|$)/,
cancelled: /no(&|\]|$)/,
ok: /ok(&|\]|$)/,
close: /close(&|\]|$)/,
add: /(add(&|\]|$)|create)/ // customfields use create*
};
/**
* Classnames added automatic to buttons to set certain hover background colors
*/
static readonly default_classes: object = {
et2_button_cancel: /cancel(&|\]|$)/, // yellow
et2_button_question: /(yes|no)(&|\]|$)/, // yellow
et2_button_delete: /delete(&|\]|$)/ // red
};
label: string = "";
clicked: boolean = false;
btn: JQuery = null;
image: JQuery = null;
/**
* Constructor
*/
constructor(_parent, _attrs? : WidgetConfig, _child? : object)
{
// Call the inherited constructor
super(_parent, _attrs, ClassWithAttributes.extendAttributes(et2_button._attributes, _child || {}));
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if (!this.options.background_image && (this.options.image || this.options.ro_image))
{
this.image = jQuery(document.createElement("img"))
.addClass("et2_button et2_button_icon");
if (!this.options.readonly) this.image.addClass("et2_clickable");
this.setDOMNode(this.image[0]);
return;
}
if (!this.options.readonly || this.options.ro_image)
{
this.btn = jQuery(document.createElement("button"))
.addClass("et2_button")
.attr({type:"button"});
this.setDOMNode(this.btn[0]);
}
if (this.options.image) this.set_image(this.options.image);
}
/**
* Apply the "modifications" to the element and translate attributes marked
* with "translate: true"
*
* Reimplemented here to assign default background-images to buttons
*
* @param {object} _attrs
*/
transformAttributes(_attrs)
{
if (this.id && typeof _attrs.background_image == 'undefined' && !_attrs.image)
{
for(var image in et2_button.default_background_images)
{
if (this.id.match(et2_button.default_background_images[image]))
{
_attrs.image = image;
_attrs.background_image = true;
break;
}
}
}
for(var name in et2_button.default_classes)
{
if (this.id.match(et2_button.default_classes[name]))
{
_attrs.class = (typeof _attrs.class == 'undefined' ? '' : _attrs.class+' ')+name;
break;
}
}
super.transformAttributes(_attrs);
}
set_accesskey(key)
{
jQuery(this.node).attr("accesskey", key);
}
/**
* Set image and update current image
*
* @param _image
*/
set_image(_image)
{
this.options.image = _image;
this.update_image();
}
/**
* Set readonly image and update current image
*
* @param _image
*/
set_ro_image(_image)
{
this.options.ro_image = _image;
this.update_image();
}
/**
* Set current image (dont update options.image)
*
* @param _image
*/
update_image(_image?)
{
if(!this.isInTree() || !this.options.background_image && this.image == null) return;
if (typeof _image == 'undefined')
_image = this.options.readonly ? (this.options.ro_image || this.options.image) : this.options.image;
// Silently blank for percentages instead of warning about missing image - use a progress widget
if(_image.match(/^[0-9]+\%$/))
{
_image = "";
//this.egw().debug("warn", "Use a progress widget instead of percentage images", this);
}
var found_image = false;
if(_image != "")
{
var src = this.egw().image(_image);
if(src)
{
found_image = true;
}
else if (_image[0] == '/' || _image.substr(0,4) == 'http')
{
src = _image;
found_image = true;
}
if(found_image)
{
if(this.image != null)
{
this.image.attr("src", src);
}
else if (this.options.background_image && this.btn)
{
this.btn.css("background-image","url("+src+")");
this.btn.addClass('et2_button_with_image');
}
}
}
if(!found_image)
{
this.set_label(this.label);
if(this.btn)
{
this.btn.css("background-image","");
this.btn.removeClass('et2_button_with_image');
}
}
}
/**
* Set options.readonly and update image
*
* @param {boolean} _ro
*/
set_readonly(_ro)
{
if (_ro != this.options.readonly)
{
this.options.readonly = _ro;
if (this.options.image || this.options.ro_image)
{
this.update_image();
}
// dont show readonly buttons as clickable
if (this.btn || this.image)
{
(this.btn || this.image)
.toggleClass('et2_clickable', !_ro)
.toggleClass('et2_button_ro', _ro)
.css('cursor', _ro ? 'default' : 'pointer'); // temp. 'til it is removed from et2_button
}
}
}
attachToDOM()
{
let ret = super.attachToDOM();
if (this.options.readonly && (this.btn || this.image))
{
(this.btn || this.image)
.removeClass('et2_clickable')
.addClass('et2_button_ro')
.css('cursor', 'default'); // temp. 'til it is removed from et2_button
}
return ret;
}
getDOMNode()
{
return this.btn ? this.btn[0] : (this.image ? this.image[0] : null);
}
/**
* Overwritten to maintain an internal clicked attribute
*
* @param _ev
* @returns {Boolean}
*/
click(_ev)
{
// ignore click on readonly button
if (this.options.readonly) return false;
this.clicked = true;
if (!super.click.apply(this, arguments))
{
this.clicked = false;
return false;
}
// Submit the form
if (this.getType() != "buttononly")
{
this.getInstanceManager().submit(this, false, this.options.novalidate); //TODO: this only needs to be passed if it's in a datagrid
}
this.clicked = false;
return true;
}
set_label(_value)
{
if (this.btn)
{
this.label = _value;
this.btn.text(_value);
if (_value && !this.image)
this.btn.addClass('et2_button_text');
else
this.btn.removeClass('et2_button_text');
}
if(this.image)
{
this.image.attr("alt", _value);
// Don't set title if there's a tooltip, browser may show both
if(!this.options.statustext)
{
this.image.attr("title",_value);
}
}
}
/**
* Set tab index
*
* @param {number} index
*/
set_tabindex(index)
{
jQuery(this.btn).attr("tabindex", index);
}
/**
* Implementation of the et2_IInput interface
*/
/**
* Always return false as a button is never dirty
*/
isDirty()
{
return false;
}
resetDirty()
{
}
getValue()
{
if (this.clicked)
{
return true;
}
// If "null" is returned, the result is not added to the submitted
// array.
return null;
}
isValid()
{
return true;
}
/**
* et2_IDetachedDOM
*
* @param {array} _attrs
*/
getDetachedAttributes(_attrs)
{
_attrs.push("label", "value", "class", "image", "ro_image", "onclick", "background_image" );
}
getDetachedNodes()
{
return [
this.btn != null ? this.btn[0] : null,
this.image != null ? this.image[0] : null
];
}
setDetachedAttributes(_nodes, _values)
{
// Datagrid puts in the row for null
this.btn = _nodes[0].nodeName[0] != '#' ? jQuery(_nodes[0]) : null;
this.image = jQuery(_nodes[1]);
if (typeof _values["id"] != "undefined")
{
this.set_id(_values["id"]);
}
if (typeof _values["label"] != "undefined")
{
this.set_label(_values["label"]);
}
if (typeof _values["value"] != "undefined")
{
}
if (typeof _values["image"] != "undefined")
{
this.set_image(_values["image"]);
}
if (typeof _values["ro_image"] != "undefined")
{
this.set_ro_image(_values["ro_image"]);
}
if (typeof _values["class"] != "undefined")
{
this.set_class(_values["class"]);
}
if (typeof _values["onclick"] != "undefined")
{
this.options.onclick = _values["onclick"];
}
var type = this.getType();
var attrs = jQuery.extend(_values, this.options);
var parent = this.getParent();
jQuery(this.getDOMNode()).bind("click.et2_baseWidget", this, function(e) {
var widget = et2_createWidget(type,attrs,parent);
e.data = widget;
e.data.set_id(_values["id"]);
return e.data.click.call(e.data,e);
});
}
}
et2_register_widget(et2_button, ["button", "buttononly"]);