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https://github.com/EGroupware/egroupware.git
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715 lines
18 KiB
TypeScript
715 lines
18 KiB
TypeScript
import {et2_IInput, et2_IInputNode, et2_ISubmitListener} from "../et2_core_interfaces";
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import {Et2Widget} from "../Et2Widget/Et2Widget";
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import {css, LitElement, PropertyValues} from "lit";
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import {Required} from "../Validators/Required";
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import {ManualMessage} from "../Validators/ManualMessage";
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import {LionValidationFeedback, Validator} from "@lion/form-core";
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import {et2_csvSplit} from "../et2_core_common";
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import {dedupeMixin} from "@lion/core";
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// LionValidationFeedback needs to be registered manually
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window.customElements.define('lion-validation-feedback', LionValidationFeedback);
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/**
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* This mixin will allow any LitElement to become an Et2InputWidget
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*
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* Usage:
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* export class Et2Button extends Et2InputWidget(LitWidget)) {...}
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*/
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/**
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* Need to define the interface first, to get around TypeScript issues with protected/public
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* This must match the public API for Et2InputWidgetClass
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* @see https://lit.dev/docs/composition/mixins/#typing-the-subclass
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*/
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export declare class Et2InputWidgetInterface
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{
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readonly : boolean;
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protected value : string | number | Object;
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public required : boolean;
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public set_value(any) : void;
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public get_value() : any;
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public getValue(submit_value? : boolean) : any;
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public set_readonly(boolean) : void;
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public set_validation_error(message : string | false) : void;
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public isDirty() : boolean;
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public resetDirty() : void;
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public isValid(messages : string[]) : boolean;
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}
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type Constructor<T = {}> = new (...args : any[]) => T;
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const Et2InputWidgetMixin = <T extends Constructor<LitElement>>(superclass : T) =>
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{
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class Et2InputWidgetClass extends Et2Widget(superclass) implements et2_IInput, et2_IInputNode, et2_ISubmitListener
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{
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private __readonly : boolean;
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protected _oldValue : string | number | Object;
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protected node : HTMLElement;
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// Validators assigned to one specific instance of a widget
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protected validators : Validator[];
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// Validators for every instance of a type of widget
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protected defaultValidators : Validator[];
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// Promise used during validation
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protected validateComplete : Promise<undefined>;
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// Hold on to any server messages while the user edits
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private _messagesHeldWhileFocused : Validator[];
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protected isSlComponent = false;
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/** WebComponent **/
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static get styles()
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{
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return [
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...super.styles,
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css`
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/* Allow actually disabled inputs */
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:host([disabled]) {
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display: initial;
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}
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/* Needed so required can show through */
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::slotted(input), input {
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background-color: transparent;
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}
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/* Used to allow auto-sizing on slotted inputs */
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.input-group__container > .input-group__input ::slotted(.form-control) {
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width: 100%;
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}
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.form-control__help-text {
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position: relative;
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}
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`
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];
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}
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static get properties()
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{
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return {
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...super.properties,
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/**
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* The label of the widget
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* Overridden from parent to use our accessors
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*/
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label: {
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type: String, noAccessor: true
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},
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// readOnly is what the property is in Lion, readonly is the attribute
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readOnly: {
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type: Boolean,
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attribute: 'readonly',
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},
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// readonly is what is in the templates
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// I put this in here so loadWebComponent finds it when it tries to set it from the template
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readonly: {
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type: Boolean,
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reflect: true
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},
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required: {
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type: Boolean,
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reflect: true
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},
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onchange: {
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type: Function
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},
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/**
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* Have browser focus this input on load.
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* Overrides etemplate2.focusOnFirstInput(), use only once per page
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* https://developer.mozilla.org/en-US/docs/Web/HTML/Element/input#attributes
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*/
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autofocus: {
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type: Boolean,
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reflect: true
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},
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autocomplete: {
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type: String
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}
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};
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}
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/**
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* List of properties that get translated
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* Done separately to not interfere with properties - if we re-define label property,
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* labels go missing.
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* @returns object
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*/
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static get translate()
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{
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return {
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...super.translate,
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placeholder: true,
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}
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}
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/**
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* Compatibility for deprecated name "needed"
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*
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* @deprecated use required instead
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* @param val
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*/
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set needed(val : boolean)
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{
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this.required = val;
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}
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/**
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* Compatibility for deprecated name "needed"
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*
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* @deprecated use required instead
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*/
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get needed()
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{
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return this.required;
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}
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constructor(...args : any[])
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{
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super(...args);
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this.validators = [];
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this.defaultValidators = [];
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this._messagesHeldWhileFocused = [];
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this.__readonly = false;
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this._oldValue = this.getValue();
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this.isSlComponent = typeof (<any>this).handleChange === 'function';
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this.et2HandleFocus = this.et2HandleFocus.bind(this);
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this.et2HandleBlur = this.et2HandleBlur.bind(this);
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this.autocomplete = 'on';
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}
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connectedCallback()
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{
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super.connectedCallback();
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this._oldChange = this._oldChange.bind(this);
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this.node = this.getInputNode();
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this.updateComplete.then(() =>
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{
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this.addEventListener(this.isSlComponent ? 'sl-change' : 'change', this._oldChange);
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});
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this.addEventListener("focus", this.et2HandleFocus);
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this.addEventListener("blur", this.et2HandleBlur);
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}
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disconnectedCallback()
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{
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super.disconnectedCallback();
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this.removeEventListener(this.isSlComponent ? 'sl-change' : 'change', this._oldChange);
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this.removeEventListener("focus", this.et2HandleFocus);
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this.removeEventListener("blur", this.et2HandleBlur);
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}
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/**
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* A property has changed, and we want to make adjustments to other things
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* based on that
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*
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* @param {import('@lion/core').PropertyValues } changedProperties
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*/
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updated(changedProperties : PropertyValues)
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{
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super.updated(changedProperties);
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// required changed, add / remove validator
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if(changedProperties.has('required'))
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{
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// Remove all existing Required validators (avoids duplicates)
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this.validators = (this.validators || []).filter((validator) => !(validator instanceof Required))
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if(this.required)
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{
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this.validators.push(new Required());
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}
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}
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if(changedProperties.has("value"))
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{
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// Base off this.value, not this.getValue(), to ignore readonly
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this.classList.toggle("hasValue", !(this.value == null || this.value == ""));
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}
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}
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/**
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* Change handler calling custom handler set via onchange attribute
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*
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* @param _ev
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* @returns
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*/
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_oldChange(_ev : Event) : boolean
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{
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if(typeof this.onchange == 'function' && (
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// If we have an instanceManager, make sure it's ready. Otherwise, we ignore the event
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!this.getInstanceManager() || this.getInstanceManager().isReady
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))
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{
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// Make sure function gets a reference to the widget, splice it in as 2. argument if not
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let args = Array.prototype.slice.call(arguments);
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if(args.indexOf(this) == -1)
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{
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args.splice(1, 0, this);
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}
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return this.onchange(...args);
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}
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return true;
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}
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/**
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* When input receives focus, clear any validation errors.
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*
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* If the value is the same on blur, we'll put them back
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* The ones from the server (ManualMessage) can interfere with submitting.
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*
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* Named et2HandleFocus to avoid overwriting handleFocus() in Shoelace components
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*
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* @param {FocusEvent} _ev
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*/
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et2HandleFocus(_ev : FocusEvent)
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{
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if(this._messagesHeldWhileFocused.length > 0)
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{
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return;
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}
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// Collect any ManualMessages
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this._messagesHeldWhileFocused = (this.validators || []).filter(
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(validator) => (validator instanceof ManualMessage)
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);
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// Remove ManualMessages from validators list
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for(let i = 0; i < this.validators.length; i++)
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{
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if(this._messagesHeldWhileFocused.indexOf(this.validators[i]) != -1)
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{
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this.validators.splice(i, 1);
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}
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}
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this.updateComplete.then(() =>
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{
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// Remove all messages. Manual will be explicitly replaced, other validators will be re-run on blur.
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this.querySelectorAll("lion-validation-feedback").forEach(e => e.remove());
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});
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}
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/**
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* If the value is unchanged, put any held validation messages back
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*
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* Named et2HandleBlur to avoid overwriting handleBlur() in Shoelace components
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*
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* @param {FocusEvent} _ev
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*/
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et2HandleBlur(_ev : FocusEvent)
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{
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if(this._messagesHeldWhileFocused.length > 0 && this.getValue() == this._oldValue)
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{
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this.validators = this.validators.concat(this._messagesHeldWhileFocused);
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this._messagesHeldWhileFocused = [];
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}
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this.updateComplete.then(() =>
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{
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this.validate();
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});
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}
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set_value(new_value)
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{
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this.value = new_value;
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// Save this so we can compare against any user changes
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this._oldValue = this.getValue();
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if(typeof this._callParser == "function")
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{
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this.modelValue = this._callParser(new_value);
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}
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}
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get_value()
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{
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return this.getValue();
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}
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set_readonly(new_value)
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{
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this.readonly = new_value;
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}
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// Deal with Lion readOnly vs etemplate readonly
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public set readonly(new_value)
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{
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this.__readonly = super.__readOnly = new_value;
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this.requestUpdate("readonly");
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}
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public get readonly()
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{
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return this.__readonly;
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}
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set readOnly(new_value)
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{
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this.readonly = new_value;
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}
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/**
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* Lion mapping
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* @deprecated
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*/
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get readOnly()
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{
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return this.readonly;
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}
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/**
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* @param boolean submit_value true: call by etemplate2.(getValues|submit|postSubmit)()
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*/
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getValue(submit_value? : boolean)
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{
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return this.readonly || this.disabled ? null : (
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// Give a clone of objects or receiver might use the reference
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this.value && typeof this.value == "object" ? (typeof this.value.length == "undefined" ? {...this.value} : [...this.value]) : this.value
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);
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}
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/**
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* Legacy support for labels with %s that get wrapped around the widget
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*
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* Not the best way go with webComponents - shouldn't modify their DOM like this
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*
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* @param new_label
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*/
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set label(new_label : string)
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{
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if(!new_label || !new_label.includes("%s"))
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{
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return super.label = new_label;
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}
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this.__label = new_label;
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const [pre, post] = et2_csvSplit(new_label, 2, "%s");
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this.label = pre;
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if(post?.trim().length > 0)
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{
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this.updateComplete.then(() =>
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{
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const label = document.createElement("et2-description");
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label.innerText = post;
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// Put in suffix, if parent has a suffix slot
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if(this.parentNode?.shadowRoot?.querySelector("slot[name='suffix']"))
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{
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label.slot = "suffix";
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}
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this.parentNode.append(label);
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});
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}
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}
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get label()
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{
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return this.__label;
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}
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isDirty()
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{
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// Readonly can't be dirty, it can't change
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if(this.readonly)
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{
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return false;
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}
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let value = this.getValue();
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if(typeof value !== typeof this._oldValue)
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{
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return true;
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}
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if(this._oldValue === value)
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{
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return false;
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}
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switch(typeof this._oldValue)
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{
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case "object":
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if(Array.isArray(this._oldValue) &&
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this._oldValue.length !== value.length
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)
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{
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return true;
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}
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for(let key in this._oldValue)
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{
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if(this._oldValue[key] !== value[key])
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{
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return true;
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}
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}
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return false;
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default:
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return this._oldValue != value;
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}
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}
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resetDirty()
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{
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this._oldValue = this.getValue();
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}
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/**
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* Used by etemplate2 to determine if we can submit or not
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*
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* @param messages
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* @returns {boolean}
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*/
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isValid(messages)
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{
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var ok = true;
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debugger;
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// Check for required
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if(this.required && !this.readonly && !this.disabled &&
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(this.getValue() == null || this.getValue().valueOf() == ''))
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{
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messages.push(this.egw().lang('Field must not be empty !!!'));
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ok = false;
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}
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return ok;
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}
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getInputNode()
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{
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// From LionInput
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return this._inputNode;
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}
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transformAttributes(attrs)
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{
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super.transformAttributes(attrs);
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// Set attributes for the form / autofill. It's the individual widget's
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// responsibility to do something appropriate with these properties.
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if(this.autocomplete == "on" && window.customElements.get(this.localName).getPropertyOptions("name") != "undefined" &&
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this.getArrayMgr("content") !== null
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)
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{
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this.name = this.getArrayMgr("content").explodeKey(this.id).pop();
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}
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// Check whether an validation error entry exists
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if(this.id && this.getArrayMgr("validation_errors"))
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{
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let val = this.getArrayMgr("validation_errors").getEntry(this.id);
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if(val)
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{
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this.set_validation_error(val);
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}
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}
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}
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/**
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* Massively simplified validate, as compared to what ValidatorMixin gives us, since ValidatorMixin extends
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* FormControlMixin which breaks SlSelect's render()
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*
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* We take all validators for the widget, and if there's a value (or field is required) we check the value
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* with each validator. For array values we check each element with each validator. If the value does not
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* pass the validator, we collect the message and display feedback to the user.
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*
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* We handle validation errors from the server with ManualMessages, which always "fail".
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* If the value is empty, we only validate if the field is required.
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*
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* @param skipManual Do not run any manual validators, used during submit check. We don't want manual validators to block submit.
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*/
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async validate(skipManual = false)
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{
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if(this.readonly || this.disabled)
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{
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// Don't validate if the widget is read-only, there's nothing the user can do about it
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return Promise.resolve();
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}
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let validators = [...(this.validators || []), ...(this.defaultValidators || [])];
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let fieldName = this.id;
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let feedbackData = [];
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let resultPromises = [];
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this.querySelector("lion-validation-feedback")?.remove();
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// Collect message of a (failing) validator
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const doValidate = async function(validator, value)
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{
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if(validator.config.fieldName)
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{
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fieldName = await validator.config.fieldName;
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}
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// @ts-ignore [allow-protected]
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return validator._getMessage({
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modelValue: value,
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formControl: this,
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fieldName,
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}).then((message) =>
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{
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feedbackData.push({message, type: validator.type, validator});
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});
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}.bind(this);
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// Check if a validator fails
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const doCheck = async(value, validator) =>
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{
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const result = validator.execute(value, validator.param, {node: this});
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if(result === true)
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{
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resultPromises.push(doValidate(validator, value));
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}
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else if(result !== false && typeof result.then === 'function')
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{
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result.then(doValidate(validator, value));
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resultPromises.push(result);
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}
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};
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validators.map(async validator =>
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{
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let values = this.getValue();
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if(values !== null && !Array.isArray(values))
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{
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values = [values];
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}
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if(values !== null && !values.length)
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{
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values = [''];
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} // so required validation works
|
|
|
|
// Run manual validation messages just once, doesn't usually matter what the value is
|
|
if(validator instanceof ManualMessage)
|
|
{
|
|
if(!skipManual)
|
|
{
|
|
doCheck(values, validator);
|
|
}
|
|
}
|
|
// Only validate if field is required, or not required and has a value
|
|
// Don't bother to validate empty fields
|
|
else if(this.required || !this.required && this.getValue() != '' && this.getValue() !== null)
|
|
{
|
|
// Validate each individual item
|
|
values.forEach((value) => doCheck(value, validator));
|
|
}
|
|
});
|
|
this.validateComplete = Promise.all(resultPromises);
|
|
|
|
// Wait until all validation is finished, then update UI
|
|
this.validateComplete.then(() =>
|
|
{
|
|
// Show feedback from all failing validators
|
|
if(feedbackData.length > 0)
|
|
{
|
|
let feedback = <LionValidationFeedback>document.createElement("lion-validation-feedback");
|
|
feedback.feedbackData = feedbackData;
|
|
feedback.slot = "help-text";
|
|
this.append(feedback);
|
|
if(this.shadowRoot.querySelector("slot[name='feedback']"))
|
|
{
|
|
feedback.slot = "feedback";
|
|
}
|
|
else if(<HTMLElement>this.shadowRoot.querySelector("#help-text"))
|
|
{
|
|
// Not always visible?
|
|
(<HTMLElement>this.shadowRoot.querySelector("#help-text")).style.display = "initial";
|
|
}
|
|
else
|
|
{
|
|
// No place to show the validation error. That's a widget problem, but we'll show it as message
|
|
this.egw().message(feedback.textContent, "error");
|
|
}
|
|
}
|
|
});
|
|
|
|
return this.validateComplete;
|
|
}
|
|
|
|
set_validation_error(err : string | false)
|
|
{
|
|
/* Shoelace uses constraint validation API
|
|
https://html.spec.whatwg.org/multipage/form-control-infrastructure.html#the-constraint-validation-api
|
|
|
|
if(err === false && this.setCustomValidity)
|
|
{
|
|
// Remove custom validity
|
|
this.setCustomValidity('');
|
|
return;
|
|
}
|
|
this.setCustomValidity(err);
|
|
|
|
// must call reportValidity() or nothing will happen
|
|
this.reportValidity();
|
|
|
|
*/
|
|
|
|
if(err === false)
|
|
{
|
|
// Remove all Manual validators
|
|
this.validators = (this.validators || []).filter((validator) => !(validator instanceof ManualMessage))
|
|
return;
|
|
}
|
|
// Need to change interaction state so messages show up
|
|
// submitted is a little heavy-handed, especially on first load, but it works
|
|
this.submitted = true;
|
|
|
|
// Add validator
|
|
this.validators.push(new ManualMessage(err));
|
|
// Force a validate - not needed normally, but if you call set_validation_error() manually,
|
|
// it won't show up without validate()
|
|
this.validate();
|
|
}
|
|
|
|
/**
|
|
* Get a list of feedback types
|
|
*
|
|
* @returns {string[]}
|
|
*/
|
|
public get hasFeedbackFor() : string[]
|
|
{
|
|
let feedback = (<LionValidationFeedback>this.querySelector("lion-validation-feedback"))?.feedbackData || [];
|
|
return feedback.map((f) => f.type);
|
|
}
|
|
|
|
/**
|
|
* 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.
|
|
*/
|
|
async submit(_values) : Promise<boolean>
|
|
{
|
|
this.submitted = true;
|
|
|
|
// If using Lion validators, run them now
|
|
if(this.validate)
|
|
{
|
|
// Force update now
|
|
this.validate(true);
|
|
await this.validateComplete;
|
|
|
|
return (this.hasFeedbackFor || []).indexOf("error") == -1;
|
|
}
|
|
return true;
|
|
}
|
|
}
|
|
|
|
return Et2InputWidgetClass;
|
|
}
|
|
export const Et2InputWidget = dedupeMixin(Et2InputWidgetMixin); |