egroupware/api/js/etemplate/Et2Widget/Et2Widget.ts

1634 lines
43 KiB
TypeScript

import {et2_IDOMNode, et2_implements_registry} from "../et2_core_interfaces";
import {et2_arrayMgr} from "../et2_core_arrayMgr";
import {et2_attribute_registry, et2_registry, et2_widget} from "../et2_core_widget";
import type {etemplate2} from "../etemplate2";
import {et2_compileLegacyJS} from "../et2_core_legacyJSFunctions";
import {et2_cloneObject, et2_csvSplit} from "../et2_core_common";
// @ts-ignore
import type {IegwAppLocal} from "../../jsapi/egw_global";
import {egw} from "../../jsapi/egw_global";
import {ClassWithAttributes, ClassWithInterfaces} from "../et2_core_inheritance";
import {css, dedupeMixin, LitElement, PropertyValues, unsafeCSS} from "@lion/core";
import type {et2_container} from "../et2_core_baseWidget";
import type {et2_DOMWidget} from "../et2_core_DOMWidget";
/**
* This mixin will allow any LitElement to become an Et2Widget
*
* Usage:
* @example
* export class Et2Loading extends Et2Widget(BXLoading) { ... }
* @example
* export class Et2Button extends Et2InputWidget(Et2Widget(BXButton)) { ... }
*
* @see Mixin explanation https://lit.dev/docs/composition/mixins/
*/
function applyMixins(derivedCtor : any, baseCtors : any[])
{
baseCtors.forEach(baseCtor =>
{
Object.getOwnPropertyNames(baseCtor.prototype).forEach(name =>
{
if(name !== 'constructor')
{
derivedCtor.prototype[name] = baseCtor.prototype[name];
}
});
});
}
type Constructor<T = LitElement> = new (...args : any[]) => T;
const Et2WidgetMixin = <T extends Constructor>(superClass : T) =>
{
class Et2WidgetClass extends superClass implements et2_IDOMNode
{
protected _mgrs : et2_arrayMgr[] = [];
protected _parent : Et2WidgetClass | et2_widget | null = null;
private _inst : etemplate2 | null = null;
/** et2_widget compatability **/
// @ts-ignore Some legacy widgets check their parent to see whats allowed
public supportedWidgetClasses = [];
/**
* If we put the widget somewhere other than as a child of its parent, we need to record that so
* we don't move it back to the parent.
* @type {Element}
* @protected
*/
protected _parent_node : Element;
/**
* Not actually required by et2_widget, but needed to keep track of non-webComponent children
*/
private _legacy_children : et2_widget[] = [];
/**
* Keep track of child widgets
* This can differ from this.children, as it only includes the widgets where this.children will be child DOM nodes,
* not guaranteed to be widgets
*/
private _children : (et2_widget | Et2WidgetClass)[] = [];
/**
* Internal Properties - default values, and actually creating them as fields
* Do not include public property defined in properties()
*/
protected _widget_id : string = "";
protected _dom_id : string = "";
/**
* TypeScript & LitElement ensure type correctness, so we can't have a string value like "$row_cont[disable_me]"
* as a boolean property so we store them here, and parse them when expanding. Strings do not have this problem,
* since $row_cont[disable_me] is still a valid string.
*/
protected _deferred_properties : { [key : string] : string } = {};
/** WebComponent **/
static get styles()
{
return [
...(super.styles ? (Array.isArray(super.styles) ? super.styles : [super.styles]) : []),
css`
:host([disabled]) {
display: none;
}
/* CSS to align internal inputs according to box alignment */
:host([align="center"]) .input-group__input {
justify-content: center;
}
:host([align="right"]) .input-group__input {
justify-content: flex-end;
}
`];
}
static get properties()
{
return {
...super.properties,
/**
* Widget ID. Optional, and not always the same as the DOM ID if the widget is inside something
* else that also has an ID.
* Putting this in the properties() list causes the parent portion of the DOM ID to be duplicated
* due to how LitElement processes the change
*/
//id: {type: String, reflect: false},
/**
* CSS Class. This class is applied to the _outside_, on the web component itself.
* Due to how WebComponents work, this might not change anything inside the component.
*/
class: {type: String, reflect: true},
/**
* Defines whether this widget is visible.
* Not to be confused with an input widget's HTML attribute 'disabled'.",
*/
disabled: {
type: Boolean,
reflect: true
},
/**
* Accesskey provides a hint for generating a keyboard shortcut for the current element.
* The attribute value must consist of a single printable character.
* @see https://developer.mozilla.org/en-US/docs/Web/HTML/Global_attributes/accesskey
*/
accesskey: {type: String, reflect: true},
/**
* Widget ID of another node to insert this node into instead of the normal location
* This isn't a normal property...
*/
parentId: {type: String, noAccessor: true},
/**
* Tooltip which is shown for this element on hover
*/
statustext: {
type: String,
reflect: true
},
/**
* The label of the widget
* This is usually displayed in some way. It's also important for accessability.
* This is defined in the parent somewhere, and re-defining it causes labels to disappear
*/
label: {
type: String
},
onclick: {
type: Function
},
/*** Style type attributes ***/
/**
* Disable any translations for the widget
*/
noLang: {
type: Boolean,
reflect: false
},
/**
* Used by Et2Box to determine alignment.
* Allowed values are left, right
*/
align: {
type: String,
reflect: true
},
/**
* comma-separated name:value pairs set as data attributes on DOM node
* data="mime:${row}[mime]" would generate data-mime="..." in DOM, eg. to use it in CSS on a parent
*/
data: {
type: String,
reflect: false
}
};
}
/**
* List of properties that get translated
* Done separately to not interfere with properties - if we re-define label property,
* labels go missing.
* @returns {{statustext : boolean, label : boolean}}
*/
static get translate()
{
return {
label: true,
statustext: true
}
}
/**
* Widget Mixin constructor
*
* Note the ...args parameter and super() call
*
* @param args
*/
constructor(...args : any[])
{
super(...args);
this.disabled = false;
this._handleClick = this._handleClick.bind(this);
// make all sizable widgets large by default on mobile template
if(typeof egwIsMobile == "function" && egwIsMobile())
{
this.size = "large";
}
}
connectedCallback()
{
super.connectedCallback();
this.addEventListener("click", this._handleClick);
if(this.statustext && !egwIsMobile())
{
this.egw().tooltipBind(this, this.egw().lang(this.statustext));
}
}
disconnectedCallback()
{
this.egw()?.tooltipUnbind(this);
this.removeEventListener("click", this._handleClick);
}
/**
* NOT the setter, since we cannot add to the DOM before connectedCallback()
*
* TODO: This is not best practice. Should just set property, DOM modification should be done in render
* https://lit-element.polymer-project.org/guide/templates#design-a-performant-template
*
* @param value
*/
set_label(value : string)
{
let oldValue = this.label;
// Remove old
let oldLabels = this.getElementsByClassName("et2_label");
while(oldLabels[0])
{
this.removeChild(oldLabels[0]);
}
this.__label = value;
if(value)
{
if(this._labelNode)
{
this._labelNode.textContent = this.__label;
}
else
{
let label = document.createElement("span");
label.classList.add("et2_label");
label.textContent = this.__label;
// We should have a slot in the template for the label
label.slot = "label";
this.appendChild(label);
this.requestUpdate('label', oldValue);
}
}
}
/**
* supports legacy set_statustext
* @deprecated use this.statustext
* @param value
*/
set_statustext(value : string)
{
this.statustext = value;
}
set statustext(value : string)
{
let oldValue = this.__statustext;
this.__statustext = value;
this.requestUpdate("statustext", oldValue);
}
get statustext() : string
{
return this.__statustext;
}
/**
* Wrapper on this.disabled because legacy had it.
*
* @param {boolean} value
*/
set_disabled(value : boolean)
{
let oldValue = this.disabled;
this.disabled = value;
this.requestUpdate("disabled", oldValue);
}
/**
* Get the actual DOM ID, which has been prefixed to make sure it's unique.
*
* @returns {string}
*/
get dom_id()
{
return this.getAttribute("id");
}
/**
* Set the ID of the widget
*
* This is the "widget" ID, which is used as an index into the managed arrays (content, etc) and when
* trying to find widgets by ID.
*
* This is not the DOM ID.
*
* @param {string} value
*/
set id(value)
{
this._widget_id = value;
let dom_id = "";
if(this._widget_id)
{
// Create a namespace for this object with new ID
if(this._createNamespace())
{
this.checkCreateNamespace();
}
let path = this.getPath();
if(this.getInstanceManager())
{
path.unshift(this.getInstanceManager().uniqueId);
}
path.push(value);
dom_id = path.join("_");
}
this.setAttribute("id", dom_id);
this.requestUpdate("id");
}
/**
* Get the ID of the widget
*
* @returns {string}
*/
get id()
{
return this._widget_id;
}
/**
* Set the dataset from a CSV
* @param {string} value
*/
set data(value : string)
{
// Clear existing
Object.keys(this.dataset).forEach(dataKey =>
{
delete this.dataset[dataKey];
});
let data = value.split(",");
data.forEach((field) =>
{
let f = field.split(":");
if(f[0] && typeof f[1] !== "undefined")
{
this.dataset[f[0]] = f[1];
}
});
}
get data() : string
{
let data = [];
Object.keys(this.dataset).forEach((k) =>
{
data.push(k + ":" + this.dataset[k]);
})
return data.join(",");
}
/**
* A property has changed, and we want to make adjustments to other things
* based on that
*
* @param {import('@lion/core').PropertyValues } changedProperties
*/
updated(changedProperties : PropertyValues)
{
super.updated(changedProperties);
// required changed, add / remove validator
if(changedProperties.has('label'))
{
this._set_label(this.label);
}
if(changedProperties.has("statustext"))
{
this.egw().tooltipUnbind(this);
if(this.statustext)
{
this.egw().tooltipBind(this, this.statustext);
}
}
if(changedProperties.has("onclick"))
{
this.classList.toggle("et2_clickable", this.onclick != null && typeof this.onclick != "undefined");
}
}
/**
* Any attribute that refers to row content cannot be resolved immediately, but some like booleans cannot stay a
* string because it's a boolean attribute. We store them for later, and parse when they're fully in their row.
*/
get deferredProperties()
{
return this._deferred_properties;
}
set deferredProperties(value)
{
this._deferred_properties = value;
}
/**
* Do some fancy stuff on the label, splitting it up if there's a %s in it
*
* Normally called from updated(), the "normal" setter stuff has already been run before
* this is called. We only override our special cases (%s) because the normal label has
* been set by the parent
*
* @param value
* @protected
*/
protected _set_label(value : string)
{
if(!this._labelNode)
{
return;
}
// Remove any existing post label
let existing = (Array.from(this.children)).find(
(el : Element) => el.slot === "after" && el.tagName === "LABEL",
)
if(existing)
{
this.removeChild(existing);
}
// Split the label at the "%s"
let parts = et2_csvSplit(value, 2, "%s");
if(parts.length > 1)
{
let after = document.createElement("label");
after.slot = "after";
after.textContent = parts[1];
this.appendChild(after);
this._labelNode.textContent = parts[0];
}
}
set class(value : string)
{
let oldValue = this.classList.value;
this.classList.value = value;
this.requestUpdate('class', oldValue);
}
get class()
{
return this.classList.value;
}
/**
* Set the widget class
*
* @deprecated Use this.class or this.classList instead
* @param {string} new_class
*/
set_class(new_class : string)
{
this.class = new_class;
}
/**
* Event handlers
*/
/**
* Click handler calling custom handler set via onclick attribute to this.onclick
*
* @param _ev
* @returns
*/
_handleClick(_ev : MouseEvent) : boolean
{
if(typeof this.onclick == 'function')
{
// Make sure function gets a reference to the widget, splice it in as 2. argument if not
let args = Array.prototype.slice.call(arguments);
if(args.indexOf(this) == -1)
{
args.splice(1, 0, this);
}
return this.onclick(...args);
}
return true;
}
/** et2_widget compatability **/
destroy()
{
// Not really needed, use the disconnectedCallback() and let the browser handle it
// Call the destructor of all children so any legacy widgets get destroyed
for(let i = this.getChildren().length - 1; i >= 0; i--)
{
this.getChildren()[i].destroy();
}
// Free the array managers if they belong to this widget
for(let key in this._mgrs)
{
if(this._mgrs[key] && this._mgrs[key].owner == this)
{
delete this._mgrs[key];
}
}
}
isInTree() : boolean
{
// TODO: Probably should watch the state or something
return true;
}
/**
* Get property-values as object
*
* @deprecated use widget methods
*/
get options() : object
{
const options : { [key : string] : any } = {};
// @ts-ignore not sure how to tell TS this is a ReactiveElement and properties is a static getter
for(const name in this.constructor.properties)
{
options[name] = this[name];
}
// adding attributes too
this.getAttributeNames().forEach(name =>
{
options[name] = this.getAttribute(name);
});
// add some (not declared) known properties
if(typeof this.get_value === 'function')
{
options.value = this.get_value();
}
console.groupCollapsed("Deprecated widget.options use")
console.trace("Something called widget.options on ", this);
console.groupEnd();
return options;
}
/**
* Loads the widget tree from an XML node
*
* @param _node xml node
*/
loadFromXML(_node)
{
// Load the child nodes.
for(let i = 0; i < _node.childNodes.length; i++)
{
let node = _node.childNodes[i];
let widgetType = node.nodeName.toLowerCase();
if(widgetType == "#comment")
{
continue;
}
if(widgetType == "#text")
{
if(node.data.replace(/^\s+|\s+$/g, ''))
{
this.innerText = node.data;
}
continue;
}
// Create the new element
this.createElementFromNode(node);
}
}
/**
* Create a et2_widget from an XML node.
*
* First the type and attributes are read from the node. Then the readonly & modifications
* arrays are checked for changes specific to the loaded data. Then the appropriate
* constructor is called. After the constructor returns, the widget has a chance to
* further initialize itself from the XML node when the widget's loadFromXML() method
* is called with the node.
*
* @param _node XML node to read
* @param _name XML node name
*
* @return et2_widget
*/
createElementFromNode(_node, _name?)
{
let attributes = {};
// Parse the "readonly" and "type" flag for this element here, as they
// determine which constructor is used
let _nodeName = attributes["type"] = _node.getAttribute("type") ?
_node.getAttribute("type") : _node.nodeName.toLowerCase();
const readonly = attributes["readonly"] = this.getArrayMgr("readonlys") ?
(<any>this.getArrayMgr("readonlys")).isReadOnly(
_node.getAttribute("id"), _node.getAttribute("readonly"),
typeof this.readonly !== "undefined" ? this.readonly : false) : false;
// Check to see if modifications change type
let modifications = this.getArrayMgr("modifications");
if(modifications && _node.getAttribute("id"))
{
let entry : any = modifications.getEntry(_node.getAttribute("id"));
if(entry == null)
{
// Try again, but skip the fancy stuff
// TODO: Figure out why the getEntry() call doesn't always work
entry = modifications.data[_node.getAttribute("id")];
if(entry)
{
this.egw().debug("warn", "getEntry(" + _node.getAttribute("id") + ") failed, but the data is there.", modifications, entry);
}
else
{
// Try the root, in case a namespace got missed
entry = modifications.getRoot().getEntry(_node.getAttribute("id"));
}
}
if(entry && entry.type && typeof entry.type === 'string')
{
_nodeName = attributes["type"] = entry.type;
}
entry = null;
}
// if _nodeName / type-attribute contains something to expand (eg. type="@${row}[type]"),
// we need to expand it now as it defines the constructor and by that attributes parsed via parseXMLAttrs!
if(_nodeName.charAt(0) == '@' || _nodeName.indexOf('$') >= 0)
{
_nodeName = attributes["type"] = this.getArrayMgr('content').expandName(_nodeName);
}
let widget;
if(undefined == window.customElements.get(_nodeName))
{
// Get the constructor - if the widget is readonly, use the special "_ro"
// constructor if it is available
if (typeof et2_registry[_nodeName] === "undefined")
{
_nodeName = 'placeholder';
}
let constructor = et2_registry[_nodeName];
if(readonly === true && typeof et2_registry[_nodeName + "_ro"] != "undefined")
{
constructor = et2_registry[_nodeName + "_ro"];
}
// Parse the attributes from the given XML attributes object
this.parseXMLAttrs(_node.attributes, attributes, constructor.prototype);
// Do an sanity check for the attributes
ClassWithAttributes.generateAttributeSet(et2_attribute_registry[constructor.name], attributes);
// Creates the new widget, passes this widget as an instance and
// passes the widgetType. Then it goes on loading the XML for it.
widget = new constructor(this, attributes);
// Load the widget itself from XML
widget.loadFromXML(_node);
}
else
{
widget = loadWebComponent(_nodeName, _node, this);
if(this.addChild)
{
// webcomponent going into old et2_widget
this.addChild(widget);
}
}
return widget;
}
/**
* The parseXMLAttrs function takes an XML DOM attributes object
* and adds the given attributes to the _target associative array. This
* function also parses the legacyOptions.
*
* N.B. This is only used for legacy widgets. WebComponents use transformAttributes() and
* do their own handling of attributes.
*
* @param _attrsObj is the XML DOM attributes object
* @param {object} _target is the object to which the attributes should be written.
* @param {et2_widget} _proto prototype with attributes and legacyOptions attribute
*/
parseXMLAttrs(_attrsObj, _target, _proto)
{
// Check whether the attributes object is really existing, if not abort
if(typeof _attrsObj == "undefined")
{
return;
}
// Iterate over the given attributes and parse them
let mgr = this.getArrayMgr("content");
for(let i = 0; i < _attrsObj.length; i++)
{
let attrName = _attrsObj[i].name;
let attrValue = _attrsObj[i].value;
// Special handling for the legacy options
if(attrName == "options" && _proto.constructor.legacyOptions && _proto.constructor.legacyOptions.length > 0)
{
let legacy = _proto.constructor.legacyOptions || [];
// Check for modifications on legacy options here. Normal modifications
// are handled in widget constructor, but it's too late for legacy options then
if(_target.id && this.getArrayMgr("modifications").getEntry(_target.id))
{
let mod : any = this.getArrayMgr("modifications").getEntry(_target.id);
if(typeof mod.options != "undefined")
{
attrValue = _attrsObj[i].value = mod.options;
}
}
// expand legacyOptions with content
if(attrValue.charAt(0) == '@' || attrValue.indexOf('$') != -1)
{
attrValue = mgr.expandName(attrValue);
}
// Parse the legacy options (as a string, other types not allowed)
let splitted = et2_csvSplit(attrValue + "");
for(let j = 0; j < splitted.length && j < legacy.length; j++)
{
// Blank = not set, unless there's more legacy options provided after
if(splitted[j].trim().length === 0 && legacy.length >= splitted.length)
{
continue;
}
// Check to make sure we don't overwrite a current option with a legacy option
if(typeof _target[legacy[j]] === "undefined")
{
attrValue = splitted[j];
/**
If more legacy options than expected, stuff them all in the last legacy option
Some legacy options take a comma separated list.
*/
if(j == legacy.length - 1 && splitted.length > legacy.length)
{
attrValue = splitted.slice(j);
}
let attr = et2_attribute_registry[_proto.constructor.name][legacy[j]] || {};
// If the attribute is marked as boolean, parse the
// expression as bool expression.
if(attr.type == "boolean")
{
attrValue = mgr.parseBoolExpression(attrValue);
}
else if(typeof attrValue != "object")
{
attrValue = mgr.expandName(attrValue);
}
_target[legacy[j]] = attrValue;
}
}
}
else if(attrName == "readonly" && typeof _target[attrName] != "undefined")
{
// do NOT overwrite already evaluated readonly attribute
}
else
{
let attrs = et2_attribute_registry[_proto.constructor.name] || {};
if(mgr != null && typeof attrs[attrName] != "undefined")
{
let attr = attrs[attrName];
// If the attribute is marked as boolean, parse the
// expression as bool expression.
if(attr.type == "boolean")
{
attrValue = mgr.parseBoolExpression(attrValue);
}
else
{
attrValue = mgr.expandName(attrValue);
}
}
// Set the attribute
_target[attrName] = attrValue;
}
}
}
transformAttributes(attrs)
{
transformAttributes(this, this.getArrayMgr("content"), attrs);
// Add in additional modifications
if(this.id && this.getArrayMgr("modifications")?.getEntry(this.id))
{
transformAttributes(this, this.getArrayMgr("content"), this.getArrayMgr("modifications").getEntry(this.id));
}
}
iterateOver(_callback : Function, _context, _type)
{
if(this.disabled)
{
// Don't if we're disabled
return;
}
if(typeof _type === "undefined" || _type === et2_widget || _type === Et2Widget ||
typeof _type === 'function' && this instanceof _type ||
et2_implements_registry[_type] && et2_implements_registry[_type](this))
{
_callback.call(_context, this);
}
// Ask children
for(let i = 0; i < this._children.length; i++)
{
this._children[i].iterateOver(_callback, _context, _type);
}
}
/**
* Needed for legacy compatability.
*
* @param {Promise[]} promises List of promises from widgets that are not done. Pass an empty array, it will be filled if needed.
*/
loadingFinished(promises : Promise<any>[])
{
if(typeof promises === "undefined")
{
promises = [];
}
// Note that WebComponents don't do anything here, their lifecycle is different
// This is just to support legacy widgets
let doLoadingFinished = () =>
{
/**
* This is needed mostly as a bridge between non-WebComponent widgets and
* connectedCallback(). It's not really needed if the whole tree is WebComponent.
* WebComponents can be added as children immediately after creation, and they handle the
* rest themselves with their normal lifecycle (especially connectedCallback(), which is kind
* of the equivalent of doLoadingFinished()
*/
// @ts-ignore this is not an et2_widget, so getDOMNode(this) is bad
if(!this._parent_node && this.getParent() instanceof et2_widget && (<et2_DOMWidget>this.getParent()).getDOMNode(this) != this.parentNode)
{
// @ts-ignore this is not an et2_widget, and Et2Widget is not a Node
(<et2_DOMWidget>this.getParent()).getDOMNode(this).append(this);
}
// An empty text node causes problems with legacy widget children
// It throws off their insertion indexing, making them get added in the wrong place
if(this.childNodes[0]?.nodeType == this.TEXT_NODE && this.childNodes[0].textContent == "")
{
this.removeChild(this.childNodes[0]);
}
for(let i = 0; i < this.getChildren().length; i++)
{
let child = this.getChildren()[i];
child.loadingFinished(promises);
}
};
doLoadingFinished();
promises.push(this.getUpdateComplete());
}
getWidgetById(_id)
{
if(this.id == _id)
{
return this;
}
if(this.getChildren().length == 0)
{
return null;
}
let check_children = children =>
{
for(let i = 0; i < children.length; i++)
{
let elem = children[i].getWidgetById(_id);
if(elem != null)
{
return elem;
}
}
if(this.id && _id.indexOf('[') > -1 && children.length)
{
let ids = (new et2_arrayMgr()).explodeKey(_id);
let widget : Et2WidgetClass = this;
for(let i = 0; i < ids.length && widget !== null; i++)
{
widget = widget.getWidgetById(ids[i]);
}
return widget;
}
};
return check_children(this.getChildren()) || null;
}
/**
* Parent is different than what is specified in the template / hierarchy.
* Find it and re-parent there.
*
* @param {string} parent
*/
set parentId(parent : string | Element)
{
this.__parentId = parent;
this.updateComplete.then(() =>
{
if(!this.__parentId)
{
return;
}
let parent = document.querySelector("#" + this.__parentId) || this.__parentId;
if(parent && parent instanceof Element)
{
parent.append(<Node><unknown>this);
this._parent_node = parent;
}
});
}
get parentId()
{
return this.__parentId;
}
setParent(new_parent : Et2WidgetClass | et2_widget)
{
this._parent = new_parent;
if(this.id)
{
// Create a namespace for this object
if(this._createNamespace())
{
this.checkCreateNamespace();
}
}
// @ts-ignore
this._parent.addChild(this);
}
getParent() : Et2WidgetClass | et2_widget
{
if(this._parent)
{
return this._parent;
}
return null;
}
getParentDOMNode() : HTMLElement
{
return this._parent_node;
}
addChild(child : et2_widget | Et2WidgetClass)
{
if(this._children.indexOf(child) >= 0)
{
return;
}
if(child instanceof et2_widget)
{
// Type of et2_widget._parent is et2_widget, not Et2Widget. This might cause problems, but they
// should be fixed by getting rid of the legacy widget with problems
// @ts-ignore
child._parent = this;
// During legacy widget creation, the child's DOM node won't be available yet.
this._legacy_children.push(child);
let child_node = null;
try
{
//@ts-ignore Technically getDOMNode() is from et2_DOMWidget
child_node = typeof child.getDOMNode !== "undefined" ? child.getDOMNode(child) : null;
}
catch(e)
{
// Child did not give up its DOM node nicely but errored instead
}
if(child_node && child_node !== this)
{
this.append(child_node);
}
}
else
{
this.append(child);
}
this._children.push(child);
}
/**
* Get child widgets
* Use <obj>.children to get web component children
* @returns {et2_widget[]}
*/
getChildren()
{
return this._children;
}
getType() : string
{
return this.nodeName;
}
getDOMNode() : HTMLElement
{
return <HTMLElement><unknown>this;
}
/**
* Creates a copy of this widget.
*
* @param {et2_widget} _parent parent to set for clone, default null
*/
clone(_parent?) : Et2WidgetClass
{
// Default _parent to null
if(typeof _parent == "undefined")
{
_parent = null;
}
// Create the copy
let copy = <Et2WidgetClass>this.cloneNode();
copy.id = this._widget_id;
if(_parent)
{
copy.setParent(_parent);
}
else
{
// Copy a reference to the content array manager
copy.setArrayMgrs(this.getArrayMgrs());
// Pass on instance too
copy.setInstanceManager(this.getInstanceManager());
}
let widget_class = window.customElements.get(this.localName);
let properties = widget_class ? widget_class.properties : [];
for(let key in properties)
{
copy[key] = this[key];
}
// Keep the deferred properties
copy._deferred_properties = this._deferred_properties;
// Create a clone of all child widgets of the given object
for(let i = 0; i < this.getChildren().length; i++)
{
this.getChildren()[i].clone(copy);
}
return copy;
}
/**
* Sets the array manager for the given part
*
* @param {string} _part which array mgr to set
* @param {object} _mgr
*/
setArrayMgr(_part : string, _mgr : et2_arrayMgr)
{
this._mgrs[_part] = _mgr;
}
/**
* Returns the array manager object for the given part
*
* @param {string} managed_array_type name of array mgr to return
*/
getArrayMgr(managed_array_type : string) : et2_arrayMgr | null
{
if(this._mgrs && typeof this._mgrs[managed_array_type] != "undefined")
{
return this._mgrs[managed_array_type];
}
else if(this.getParent())
{
return this.getParent().getArrayMgr(managed_array_type);
}
return null;
}
/**
* Sets all array manager objects - this function can be used to set the
* root array managers of the container object.
*
* @param {object} _mgrs
*/
setArrayMgrs(_mgrs)
{
this._mgrs = <et2_arrayMgr[]>et2_cloneObject(_mgrs);
}
/**
* Returns an associative array containing the top-most array managers.
*
* @param _mgrs is used internally and should not be supplied.
*/
getArrayMgrs(_mgrs? : object)
{
if(typeof _mgrs == "undefined")
{
_mgrs = {};
}
// Add all managers of this object to the result, if they have not already
// been set in the result
for(let key in this._mgrs)
{
if(typeof _mgrs[key] == "undefined")
{
_mgrs[key] = this._mgrs[key];
}
}
// Recursively applies this function to the parent widget
if(this._parent)
{
this._parent.getArrayMgrs(_mgrs);
}
return _mgrs;
}
/**
* Checks whether a namespace exists for this element in the content array.
* If yes, an own perspective of the content array is created. If not, the
* parent content manager is used.
*
* Constructor attributes are passed in case a child needs to make decisions
*/
checkCreateNamespace()
{
// Get the content manager
let mgrs = this.getArrayMgrs();
for(let key in mgrs)
{
let mgr = mgrs[key];
// Get the original content manager if we have already created a
// perspective for this node
if(typeof this._mgrs[key] != "undefined" && mgr.perspectiveData.owner == this)
{
mgr = mgr.getParentMgr();
}
// Check whether the manager has a namespace for the id of this object
let entry = mgr.getEntry(this.id);
if(typeof entry === 'object' && entry !== null || this.id)
{
// The content manager has an own node for this object, so
// create an own perspective.
this._mgrs[key] = mgr.openPerspective(this, this.id);
}
else
{
// The current content manager does not have an own namespace for
// this element, so use the content manager of the parent.
delete (this._mgrs[key]);
}
}
}
/**
* Set the instance manager
* Normally this is not needed as it's set on the top-level container, and we just return that reference
*
*/
setInstanceManager(manager : etemplate2)
{
this._inst = manager;
}
/**
* Returns the instance manager
*
* @return {etemplate2}
*/
getInstanceManager()
{
if(this._inst != null)
{
return this._inst;
}
else if(this.getParent())
{
return this.getParent().getInstanceManager ? this.getParent().getInstanceManager() : null;
}
return null;
}
/**
* Returns the base widget
* Usually this is the same as getInstanceManager().widgetContainer
*/
getRoot() : et2_container
{
if(this.getParent() != null)
{
return this.getParent().getRoot();
}
else
{
return <et2_container><unknown>this;
}
}
/**
* Returns the path into the data array. By default, array manager takes care of
* this, but some extensions need to override this
*/
getPath()
{
let path = this.getArrayMgr("content")?.getPath() ?? [];
// Prevent namespaced widgets with value from going an extra layer deep
if(this.id && this._createNamespace() && path[path.length - 1] == this.id)
{
path.pop();
}
return path;
}
_createNamespace() : boolean
{
return false;
}
egw() : IegwAppLocal
{
if(this.getParent() != null && typeof this.getParent().egw === "function")
{
return (<et2_widget>this.getParent()).egw();
}
// Get the window this object belongs to
let wnd = null;
// @ts-ignore Technically this doesn't have implements(), but it's mixed in
if(this.implements(et2_IDOMNode))
{
let node = (<et2_IDOMNode><unknown>this).getDOMNode();
if(node && node.ownerDocument)
{
wnd = node.ownerDocument.parentNode || node.ownerDocument.defaultView;
}
}
// If we're the root object, return the phpgwapi API instance
return typeof egw === "function" ? egw('phpgwapi', wnd) : (window['egw'] ? window['egw'] : null);
}
}
// Add some more stuff in
applyMixins(Et2WidgetClass, [ClassWithInterfaces]);
return Et2WidgetClass as unknown as Constructor<Et2WidgetClass> & T;
}
export const Et2Widget = dedupeMixin(Et2WidgetMixin);
/**
* Load a Web Component
* @param _nodeName
* @param _template_node
* @param parent Parent widget
*/
// @ts-ignore Et2Widget is I guess not the right type
export function loadWebComponent(_nodeName : string, _template_node : Element|{[index: string]: any}, parent : Et2Widget|et2_widget|undefined) : HTMLElement
{
let attrs = {};
let load_children = true;
// support attributes object instead of an Element
if(typeof _template_node.getAttribute === 'undefined')
{
attrs = _template_node;
load_children = false;
}
else
{
_template_node.getAttributeNames().forEach(attribute =>
{
attrs[attribute] = _template_node.getAttribute(attribute);
});
}
// Try to find the class for the given node
let mobile = (typeof egwIsMobile != "undefined" && egwIsMobile());
if(mobile && typeof window.customElements.get(_nodeName + "_mobile") != "undefined")
{
_nodeName += "_mobile";
}
let widget_class = window.customElements.get(_nodeName);
if(!widget_class)
{
// Given node has no registered class. Try some of our special things (remove type, fallback to actual node)
let tries = [_nodeName.split('-')[0]];
if(_template_node.nodeName)
{
tries = tries.concat(_template_node.nodeName.toLowerCase());
}
for(let i = 0; i < tries.length && !window.customElements.get(_nodeName); i++)
{
_nodeName = tries[i];
}
widget_class = window.customElements.get(_nodeName);
if(!widget_class)
{
debugger;
throw Error("Unknown or unregistered WebComponent '" + _nodeName + "', could not find class. Also checked for " + tries.join(','));
}
}
const readonly = parent?.getArrayMgr("readonlys") ?
(<any>parent.getArrayMgr("readonlys")).isReadOnly(
attrs["id"], attrs["readonly"],
typeof parent?.readonly !== "undefined" ? parent.readonly : parent.options?.readonly || false) : false;
if(readonly === true && typeof window.customElements.get(_nodeName + "_ro") != "undefined")
{
_nodeName += "_ro";
}
// @ts-ignore
let widget = <Et2Widget>document.createElement(_nodeName);
if (parent && typeof widget.setParent === 'function') widget.setParent(parent);
// Set read-only. Doesn't really matter if it's a ro widget, but otherwise it needs set
widget.readonly = readonly;
delete attrs.readonly;
widget.transformAttributes(attrs);
// Children need to be loaded
if(load_children)
{
widget.loadFromXML(_template_node);
}
return widget;
}
/**
* Take attributes from a node in a .xet file and apply those to a WebComponent widget
*
* Any attributes provided that match a property (or attribute) on the widget will be adjusted according to
* the passed arrayManager, coerced into the proper type, and set.
* It is here that we find values or set attributes that should come from content.
*
* @param widget
* @param {et2_arrayMgr} mgr
* @param attributes
*/
function transformAttributes(widget, mgr : et2_arrayMgr, attributes)
{
const widget_class = window.customElements.get(widget.localName);
// Special case attributes
if(attributes.attributes)
{
// Attributes in content? "attributes" is read-only in webComponent
let mgr_attributes = mgr.getEntry(attributes.attributes);
delete attributes.attributes;
if(mgr_attributes)
{
Object.assign(attributes, ...mgr_attributes);
}
}
if(attributes.width)
{
widget.style.setProperty("width", attributes.width);
widget.style.setProperty("flex", "0 0 auto");
delete attributes.width;
}
// Apply any set attributes - widget will do its own coercion
for(let attribute in attributes)
{
let attrValue = attributes[attribute];
// If there is no attribute set, ignore it. Widget sets its own default.
if(typeof attrValue === "undefined")
{
continue;
}
// preprocessor and transformer can't know if application widget is a web-component or a legacy one
// translate attribute names to camelCase (only do it for used underscore, to not require a regexp)
if (attribute !== 'select_options' && attribute.indexOf('_') !== -1)
{
let parts = attribute.split('_');
if (attribute === 'parent_node') parts[1] = 'Id';
attribute = parts.shift() + parts.map(part => part[0].toUpperCase() + part.substring(1)).join("");
}
const property = widget_class.getPropertyOptions(attribute);
switch(typeof property === "object" ? property.type : property)
{
case Boolean:
if(typeof attrValue == "boolean")
{
// Already boolean, nothing needed
break;
}
// If the attribute is marked as boolean, parse the
// expression as bool expression.
attrValue = mgr ? mgr.parseBoolExpression(attrValue) : attrValue;
if(typeof attrValue === "string")
{
// Parse decided we still needed a string ($row most likely) so we'll defer it until later
// Repeating rows & nextmatch will parse it again when doing the row
widget.deferredProperties[attribute] = attrValue;
// Leave the current value at whatever the default is
continue;
}
break;
case Function:
if(typeof attrValue == "string" && mgr && mgr.getPerspectiveData().row == null &&
(attrValue.indexOf("$row") > -1 || attrValue.indexOf("$row_cont") > -1)
)
{
// Need row context, defer it until later
// Repeating rows & nextmatch will parse it again when doing the row
widget.deferredProperties[attribute] = attrValue;
console.log("Had to defer %s parsing for %o\nCan it be rewritten to avoid $row & $row_cont?", attribute, widget);
break;
}
// We parse it into a function here so we can pass in the widget as context.
// Leaving it to the LitElement conversion loses the widget as context
if(typeof attrValue !== "function")
{
attrValue = et2_compileLegacyJS(attrValue, widget, widget);
}
break;
case Object:
case Array:
// Leave it alone if it's not a string
if(typeof attrValue !== "string")
{
break;
}
// fall through to look in content
default:
attrValue = mgr ? mgr.expandName("" + attrValue) : attrValue;
if(attrValue && typeof attrValue == "string" && widget_class.translate[attribute])
{
// allow attribute to contain multiple translated sub-strings eg: {Firstname}.{Lastname}
if(attrValue.indexOf('{') !== -1)
{
attrValue = attrValue.replace(/{([^}]+)}/g, (str, p1) =>
{
return widget.egw().lang(p1);
});
}
else
{
attrValue = widget.egw().lang(attrValue);
}
}
else if(attrValue && [Object, Array].indexOf(typeof property === "object" ? property.type : property) != -1)
{
// Value was not supposed to be a string, but was run through here for expandName
try
{
attrValue = JSON.parse(attrValue);
}
catch(e)
{
console.info(widget_class.name + "#" + widget.id + " attribute '" + attribute + "' has type " +
(typeof property === "object" ? property.type.name : property.name) + " but value %o could not be parsed", attrValue);
}
}
break;
}
// Bind handlers directly, since we can do that now. Event handlers still need to be defined
// in properties() as {type: Function}, but this will take care of the binding. This is
// separate from internal events.
// (handlers can only be bound _after_ the widget is added to the DOM
if(attribute.startsWith("on") && typeof attrValue == "function")
{
//widget.updateComplete.then(() => addEventListener(attribute, attrValue));
}
// Set as attribute or property, as appropriate. Don't set missing attributes.
if(widget.getAttributeNames().indexOf(attribute) >= 0 || property.reflect && attrValue)
{
// Set as attribute (reflected in DOM)
widget.setAttribute(attribute, attrValue === true ? "" : attrValue);
}
else if(attribute === 'options')
{
console.trace('Ignored setting depricated "options" attribute for widget #' + widget.id, widget);
continue;
}
// Set as property
widget[attribute] = attrValue;
}
if(widget_class.getPropertyOptions("value") && widget.set_value)
{
if(mgr != null)
{
let val = mgr.getEntry(widget.id, false, true);
if(val !== null)
{
widget.set_value(val);
}
}
}
}
/**
* Take the name of one of our images, find the full URL (including theme), and wrap it up so you can use it in a
* widget's css block.
*
* @example
* import {cssImage} from Et2Widget;
* ...
* static get styles()
* {
* return [
* ...super.styles,
* css`
* :host {
* background-image: ${cssImage("save")};
* }
* `];
* }
* @param image_name Name of the image
* @param app_name Optional, image is from an app instead of api
* @returns {CSSResult}
*/
export function cssImage(image_name : string, app_name? : string)
{
let url = egw?.image(image_name, app_name);
if(url)
{
return css`url(${unsafeCSS(url)})`;
}
else
{
return css``;
}
}