mirror of
https://github.com/EGroupware/egroupware.git
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306 lines
7.2 KiB
TypeScript
306 lines
7.2 KiB
TypeScript
/**
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* EGroupware eTemplate2 - JS Link list object
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*
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* @license http://opensource.org/licenses/gpl-license.php GPL - GNU General Public License
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* @package etemplate
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* @subpackage api
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* @link https://www.egroupware.org
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* @author Nathan Gray
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* @copyright 2022 Nathan Gray
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*/
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import {css, html, LitElement, PropertyValues, render, TemplateResult, until} from "@lion/core";
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import {Et2Widget} from "../Et2Widget/Et2Widget";
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import {Et2Link, LinkInfo} from "./Et2Link";
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import {et2_IDetachedDOM} from "../et2_core_interfaces";
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/**
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* Display a list of entries in a comma separated list
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*
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* Given an application & entry ID, will query the list of links and display
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*
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* @see Et2Link
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*/
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// @ts-ignore TypeScript says there's something wrong with types
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export class Et2LinkString extends Et2Widget(LitElement) implements et2_IDetachedDOM
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{
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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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:host {
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list-style-type: none;
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display: inline;
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padding: 0px;
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}
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/* CSS for child elements */
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::slotted(*):after {
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content: ", "
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}
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::slotted(*:last-child):after {
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content:initial;
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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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* Specify the application for all the entries, so you only need to specify the entry ID
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*/
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application: {
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type: String,
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reflect: true,
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},
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/**
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* Application entry ID
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*/
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entryId: {
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type: String,
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reflect: true
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},
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/**
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* Application filter
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* Set to an appname or comma separated list of applications to show only linked entries from those
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* applications
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*/
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onlyApp: {
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type: String
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},
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/**
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* Type filter
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* Sub-type key to list only entries of that type
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*/
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linkType: {
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type: String
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},
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// Show links that are marked as deleted, being held for purge
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showDeleted: {type: Boolean},
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/**
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* Pass value as an object, will be parsed to set application & entryId
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*/
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value: {
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type: Object,
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reflect: false
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}
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}
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}
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protected _link_list : LinkInfo[];
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protected _loadingPromise : Promise<LinkInfo[]>;
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constructor()
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{
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super();
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this._link_list = []
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this.__showDeleted = false;
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}
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/**
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* Set the value of the list
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*
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* Value can be:
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* - String: CSV list of entries in either app:ID or just ID if application is set.
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* - Object: {to_app: <appname>, to_id: <Entry ID>} List of linked entries will be fetched from the server
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* - Array: {app: <appname>, id: <ID>}[]
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* @param _value
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*/
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public set_value(_value : string | { to_app : string, to_id : string } | LinkInfo[])
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{
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this._link_list = [];
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if(typeof _value == "object" && !Array.isArray(_value) && !_value.to_app && this.application)
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{
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_value.to_app = this.application;
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}
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// We have app & ID - fetch list
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if(typeof _value == 'object' && !Array.isArray(_value) && _value.to_app && _value.to_id && (
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typeof _value.to_id === "string" || typeof _value.to_id == "number"))
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{
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this.application = _value.to_app;
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this.entryId = _value.to_id;
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this.get_links();
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return;
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}
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// CSV list of IDs for one app
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if(typeof _value === "string")
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{
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let ids = _value.split(",");
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ids.forEach((id) => (<LinkInfo[]>this._link_list).push(<LinkInfo>{app: this.application, id: id}));
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}
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// List of LinkInfo
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else if(Array.isArray(_value))
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{
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this._link_list = _value;
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}
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// List of LinkInfo stuffed into to_id - entry is not yet saved
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else if(_value.to_id && typeof _value.to_id !== "string")
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{
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this.entryId = _value.to_id;
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Object.keys(_value.to_id).forEach((key) =>
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{
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this._link_list.push(<LinkInfo>_value.to_id[key]);
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});
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}
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this._addLinks(this._link_list);
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super.requestUpdate();
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}
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public updated(changedProperties : PropertyValues)
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{
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super.updated(changedProperties);
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if((changedProperties.has("application") || changedProperties.has("entryId") || changedProperties.has("onlyApp") || changedProperties.has("linkType")) &&
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this.application && this.entryId
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)
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{
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// Something changed, and we have the information needed to get the matching links
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this.get_links();
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}
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}
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public render() : TemplateResult
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{
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// This shows loading template until loadingPromise resolves, then shows _listTemplate
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return html`
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${this._loadingPromise ? until(
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this._loadingPromise?.then(res =>
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{
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this._listTemplate();
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}),
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this._loadingTemplate()
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) : this._listTemplate()}
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`;
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}
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protected _listTemplate()
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{
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return html`
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<slot></slot>`;
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}
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/**
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* Render one link
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*
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* @param link
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* @returns {TemplateResult}
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* @protected
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*/
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protected _linkTemplate(link : LinkInfo) : TemplateResult
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{
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const id = typeof link.id === "string" ? link.id : link.link_id;
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return html`
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<et2-link app="${link.app}" entryId="${id}" .value=${link} ._parent=${this}></et2-link>`;
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}
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/**
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* Render that we're waiting for data
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* @returns {TemplateResult}
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* @protected
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*/
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protected _loadingTemplate() : TemplateResult
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{
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return html`loading...`;
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}
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/**
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* Render a list of links inside the list
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* These get slotted, rather than put inside the shadow dom
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*
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* @param links
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* @protected
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*/
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protected _addLinks(links : LinkInfo[])
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{
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// Remove anything there right now
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while(this.lastChild)
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{
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this.removeChild(this.lastChild);
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}
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links.forEach((link) =>
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{
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let temp = document.createElement("div");
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render(this._linkTemplate(link), temp);
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temp.childNodes.forEach((node) => this.appendChild(node));
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})
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/*
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This should work, and it does, but only once.
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It fails if you try and update then run it again - none of the children get added
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Something about how lit renders
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render(html`${repeat(links,
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(link) => link.app + ":" + link.id,
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(link) => this._linkTemplate(link))}`,
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<HTMLElement><unknown>this
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);
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*/
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this.dispatchEvent(new Event("change", {bubbles: true}));
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}
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/**
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* Starts the request for link list to the server
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*
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* Called internally to fetch the list. May be called externally to trigger a refresh if a link is added.
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*
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*/
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public get_links(not_saved_links? : LinkInfo[])
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{
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if(typeof not_saved_links === "undefined")
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{
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not_saved_links = [];
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}
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let _value = {
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to_app: this.application,
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to_id: this.entryId,
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only_app: this.onlyApp,
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show_deleted: this.showDeleted
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};
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if(this._loadingPromise)
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{
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// Already waiting
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return;
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}
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this._loadingPromise = <Promise<LinkInfo[]>>(this.egw().jsonq('EGroupware\\Api\\Etemplate\\Widget\\Link::ajax_link_list', [_value]))
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.then(_value =>
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{
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this._addLinks(not_saved_links.concat(_value));
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this._loadingPromise = null;
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})
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}
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getDetachedAttributes(_attrs : string[])
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{
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_attrs.push("application", "entryId");
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}
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getDetachedNodes() : HTMLElement[]
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{
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return [<HTMLElement><unknown>this];
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}
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setDetachedAttributes(_nodes : HTMLElement[], _values : object, _data?)
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{
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for(let k in _values)
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{
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this[k] = _values[k];
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}
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}
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};
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// @ts-ignore TypeScript says there's something wrong with types
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customElements.define("et2-link-string", Et2LinkString, {extends: 'ul'}); |