split the_works.js in smaller files

This commit is contained in:
eclipse 2025-05-27 18:28:01 +02:00
parent 25616ca5a2
commit c77afb48d8
6 changed files with 290 additions and 286 deletions

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/*
* DATATABLES FUNCTIONS
*/
// initializes the DataTable functionality for the given table
function initDataTable(table_id) {
// add # to id if not there already
table_id = table_id.slice(0, 1) == "#" ? table_id : "#" + table_id
// initialize table
let table = new DataTable(table_id, {
paging: false,
order: []
});
// remove role from inside th elements to avoid clashing with PicoCSS
spans = document.querySelectorAll(table_id + " th span.dt-column-order")
.forEach( function(el) {
el.removeAttribute("role");
}
);
}
// create "New"-element and append it to the <div> containing the DataTables search field
function initCreateButton(table_id, title, href=null) {
// build button element
let button = document.createElement("button");
button.id = "create-button";
button.setAttribute("title", title);
button.textContent = "Neu …";
// wrap button inside an <a> if href is given
if ( href ) {
let b = button;
button = document.createElement("a");
button.setAttribute("href", href);
button.appendChild(b);
}
// insert element
document.getElementById(`${table_id.slice(0, 1) == "#" ? table_id.slice(1) : table_id}_wrapper`).firstElementChild.firstElementChild.appendChild(button);
}

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/*
* MODAL FUNCTIONS
*/
// adds event handlers that raise a modal
function initModal(modal_id, input_ids, headings, form_actions) {
// if input_ids is not an array, make it a single-element array
input_ids = Array.isArray(input_ids) ? input_ids : [ input_ids ];
// add event listener to "New" element
document.getElementById("create-button").addEventListener("click", () => showDialog(modal_id, input_ids, headings[0], form_actions[0], new Array(input_ids.length).fill(""), 0));
// add event listeners to "update" elements
for (const el of document.querySelectorAll('.action-update')) {
console.log(`input_ids is ${input_ids}`);
el.addEventListener("click", event => showDialog(
modal_id,
input_ids,
headings[1],
form_actions[1],
input_ids.map(input => event.currentTarget.dataset[input.slice(5).toLowerCase()]),
event.currentTarget.dataset.id
));
}
}
// raises a modal with the given options
function showDialog(modal_id, input_ids, heading, form_action, input_values, url_id) {
console.dir(arguments);
// if form action includes the string "update", the id at the end of the URL is a dummy and must be replaced with the correct id
if ( form_action.includes("update") && url_id) {
form_action = form_action.slice(0, form_action.lastIndexOf("/") + 1) + url_id;
}
// set modal attributes
document.getElementById("dialog-heading").textContent = heading;
document.getElementById("form_submit").formAction = form_action;
for (var i = 0; i < input_ids.length; i++ ) {
document.getElementById(input_ids[i]).value = input_values[i] || "";
}
// raise modal
document.getElementById(modal_id).showModal();
}

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/*
* MULTISELECT FUNCTIONS
*/
// initializes all dropdown selects on the page
function initAllMultiselects() {
// initialize each dropdown individually
let dropdowns = document.querySelectorAll("form details.dropdown");
dropdowns.forEach(d => initMultiselect(d));
// now it's time to set the z-indices
// get the_works style sheet
let sheet = [...document.styleSheets].filter(s => s.ownerNode.getAttribute("href").includes("the_works"))[0];
const initialZ = 20;
// add style rules to set z-indices on dropdown elements
// using reverse order of dropdown elements on page; this way a dropdown thaht's higher on the page will overlap a lower one
for ( let i = 0; i < dropdowns.length; i++ ) {
sheet.insertRule(`#${dropdowns[dropdowns.length-i-1].id} { z-index: ${initialZ + i*3};}`, sheet.cssRules.length);
sheet.insertRule(`#${dropdowns[dropdowns.length-i-1].id} .dropdown-badge { z-index: ${initialZ+1+i*3};}`, sheet.cssRules.length);
sheet.insertRule(`#${dropdowns[dropdowns.length-i-1].id} .dropdown-badge-close { z-index: ${initialZ+2+i*3};}`, sheet.cssRules.length);
}
// event handler for summary elements (see below)
function summaryClick(event, that) {
if ( event.target != that && that.contains(event.target) ) {
event.preventDefault();
}
}
// add event handler to summary elements preventing default behavior (toggling the details element) if the click actually targeted a badge
document.querySelectorAll("form details.dropdown summary").forEach(summary => summary.addEventListener("click", event => summaryClick(event, summary), true));
}
// initialize a dropdown select component
function initMultiselect(dropdown) {
// empty search field
let search = dropdown.querySelector("input[type='search']");
search.value = "";
// add event listener to search field
let input_name = dropdown.querySelector("input[type='checkbox']").getAttribute("name");
search.addEventListener("input", event => {
filterMultiselectChoices(event.target, input_name);
});
// add event listener to checkboxes
let summary = dropdown.querySelector("summary");
document.querySelectorAll(`[name='${input_name}']`).forEach( el => {
el.addEventListener("change", event => {
updateMultiselectSelected(event.target, summary);
});
// add badges for genre that were already selected
if ( el.checked ) {
el.dispatchEvent(new Event("change"));
}
});
}
// event handler for dropdown search field; called whenever the search field's input value is changed
function filterMultiselectChoices(that, checkbox_name) {
// show everything when search field is empty
if ( ! that.value || that.value == "" ) {
that.parentNode.parentNode.querySelectorAll("[name='" + checkbox_name + "']").forEach( (el) => {
el.parentNode.parentNode.classList.remove("filtered-out");
})
} else {
// iterate over genre inputs
that.parentNode.parentNode.querySelectorAll("[name='" + checkbox_name + "']").forEach( (el) => {
// show/hide genre entry depending on whether genre name includes search string
let noHits = true;
if ( el.parentNode.textContent.toLowerCase().includes(that.value.toLowerCase()) ) {
el.parentNode.parentNode.classList.remove("filtered-out");
noHits = false;
} else {
el.parentNode.parentNode.classList.add("filtered-out");
}
});
}
}
// event handler for dropdown checkboxes; called whenever a checkbox is checked or unchecked
function updateMultiselectSelected(that, summary) {
if ( that.checked ) {
// add badge when checkbox was checked
let badge = document.createElement("span");
badge.id = that.id + "-badge";
badge.classList.add("dropdown-badge");
badge.textContent = that.parentNode.textContent;
summary.appendChild(badge);
// add closing X to badge
let badgeX = document.createElement("span");
badgeX.classList.add("dropdown-badge-close");
badgeX.innerHTML = "&times;";
badge.appendChild(badgeX);
badgeX.addEventListener("click", removeMultiselectBadge);
} else {
// remove badge when checkbox was unchecked
document.getElementById(that.id + "-badge").remove();
}
}
// unselect a previously checked checkbox by clicking its badge's "X"
function removeMultiselectBadge(event) {
let input_id = this.parentNode.id.slice(0, -6);
document.getElementById(input_id).checked = false;
this.parentNode.remove();
event.stopPropagation();
}

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/*
* SEARCH-ALL FUNCTIONS
*/
function search_all(s, url) {
// remove previous results
document.getElementById("results").innerHTML = "";
if ( s == "" ) { return; }
// fetch search results
let fetch_url = new URL(url);
fetch_url.search = new URLSearchParams({query: s, case: document.getElementById("match_case").checked ? "match" : "no"});
fetch(fetch_url)
.then(response => response.json())
.then(data => {
// tell user if there are no results
if ( Object.keys(data).length === 0 ) {
let h3 = document.createElement("h3");
h3.innerText = "Die Suchanfrage ergab keine Treffer.";
document.getElementById("results").appendChild(h3);
return;
}
// iterate over search results
for ( const db_table of Object.keys(data) ) {
let columns = Object.keys(data[db_table][0]);
// build container, heading, table
let container = document.createElement("details");
container.classList.add("result-container");
container.setAttribute("name", "result-accordion");
let heading = document.createElement("summary");
container.appendChild(heading);
let table = document.createElement("table");
// build table head
let thead = document.createElement("thead");
let tr, th, td;
tr = document.createElement("tr");
for ( const column of columns) {
if ( column == "ID" ) { continue; }
th = document.createElement("th");
th.innerText = column;
tr.appendChild(th);
}
thead.appendChild(tr);
table.appendChild(thead);
// build table body
let tbody = document.createElement("tbody");
for ( const row of data[db_table] ) {
tr = document.createElement("tr");
for ( const column of columns ) {
// add column "ID" as data attribute, all other columns as regular table columns
if ( column == "ID" ) {
tr.setAttribute(`data-${db_table}-id`, row[column].toString());
continue;
}
td = document.createElement("td");
td.innerHTML = row[column] ? row[column].toString().replace(s, `<mark>${s}</mark>`) : "";
tr.appendChild(td);
}
tbody.appendChild(tr);
}
table.appendChild(tbody);
heading.innerHTML = `<h3>${db_table} (${tbody.childNodes.length} Treffer)</h3>`;
// add container element to DOM
container.append(table);
document.getElementById("results").appendChild(container);
// open <details> but only if it's the first element
if ( document.getElementById("results").children[0] == container ) {
container.setAttribute("open", "open");
}
document.getElementById("results").insertBefore(document.createElement("hr"), container);
}
})
}

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/*
* MISC FUNCTIONS
*/
// validates a date to be of format YYYY, MM-YYYY, DD-MM-YYYY, or empty
function validate_date(tag_id="form_Erscheinungstag", monat_id="form_Erscheinungsmonat", jahr_id="form_Erscheinungsjahr") {
let t = document.getElementById(tag_id);
let m = document.getElementById(monat_id);
let j = document.getElementById(jahr_id);
t.setCustomValidity("");
t.setAttribute("aria-invalid", "false");
m.setCustomValidity("");
m.setAttribute("aria-invalid", "false");
if ( t.value != "" ) {
if ( j.value == "" || m.value == "" ) {
t.setCustomValidity("wenn der Tag angegeben ist, müssen Monat und Jahr ebenfalls angegeben sein");
t.setAttribute("aria-invalid", "true");
t.reportValidity();
}
} else if ( m.value != "" ) {
if ( j.value == "") {
m.setCustomValidity("wenn der Monat angegeben ist, muss das Jahr ebenfalls angegeben sein");
m.setAttribute("aria-invalid", "true");
m.reportValidity();
}
}
}

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/*
* DATATABLES FUNCTIONS
*/
// initializes the DataTable fumctionality for the given table
function initDataTable(table_id) {
// add # to id if not there already
table_id = table_id.slice(0, 1) == "#" ? table_id : "#" + table_id
// initialize table
let table = new DataTable(table_id, {
paging: false,
order: []
});
// remove role from inside th elements to avoid clashing with PicoCSS
spans = document.querySelectorAll(table_id + " th span.dt-column-order")
.forEach( function(el) {
el.removeAttribute("role");
}
);
}
// create "New"-element and append it to the <div> containing the DataTables search field
function initCreateButton(table_id, title, href=null) {
// build button element
let button = document.createElement("button");
button.id = "create-button";
button.setAttribute("title", title);
button.textContent = "Neu …";
// wrap button inside an <a> if href is given
if ( href ) {
let b = button;
button = document.createElement("a");
button.setAttribute("href", href);
button.appendChild(b);
}
// insert element
document.getElementById(`${table_id.slice(0, 1) == "#" ? table_id.slice(1) : table_id}_wrapper`).firstElementChild.firstElementChild.appendChild(button);
}
/*
* MODAL FUNCTIONS
*/
// adds event handlers that raise a modal
function initModal(modal_id, input_ids, headings, form_actions) {
// if input_ids is not an array, make it a single-element array
input_ids = Array.isArray(input_ids) ? input_ids : [ input_ids ];
// add event listener to "New" element
document.getElementById("create-button").addEventListener("click", () => showDialog(modal_id, input_ids, headings[0], form_actions[0], new Array(input_ids.length).fill(""), 0));
// add event listeners to "update" elements
for (const el of document.querySelectorAll('.action-update')) {
el.addEventListener("click", event => showDialog(modal_id, input_ids, headings[1], form_actions[1], input_ids.map(input => event.currentTarget.dataset[input.slice(5).toLowerCase()]), event.currentTarget.dataset.id));
}
}
// raises a modal with the given options
function showDialog(modal_id, input_ids, heading, form_action, input_values, url_id) {
// if form action includes the string "update", the id at the end of the URL is a dummy and must be replaced with the correct id
if ( form_action.includes("update") && url_id) {
form_action = form_action.slice(0, form_action.lastIndexOf("/") + 1) + url_id;
}
// set modal attributes
document.getElementById("dialog-heading").textContent = heading;
document.getElementById("form_submit").formAction = form_action;
for (var i = 0; i < input_ids.length; i++ ) {
document.getElementById(input_ids[i]).value = input_values[i] || "";
}
// raise modal
document.getElementById(modal_id).showModal();
}
/*
* MULTISELECT FUNCTIONS
*/
// initialize a dropdown select component
function initDropdownSelect(dropdown) {
// empty search field
let search = dropdown.querySelector("input[type='search']");
search.value = "";
// add event listener to search field
let input_name = dropdown.querySelector("input[type='checkbox']").getAttribute("name");
search.addEventListener("input", event => {
filterDropdownChoices(event.target, input_name);
});
// add event listener to checkboxes
let summary = dropdown.querySelector("summary");
document.querySelectorAll(`[name='${input_name}']`).forEach( el => {
el.addEventListener("change", event => {
updateDropdownSelected(event.target, summary);
});
// add badges for genre that were already selected
if ( el.checked ) {
el.dispatchEvent(new Event("change"));
}
});
}
// event handler for dropdown search field; called whenever the search field's input value is changed
function filterDropdownChoices(that, checkbox_name) {
// show everything when search field is empty
if ( ! that.value || that.value == "" ) {
that.parentNode.parentNode.querySelectorAll("[name='" + checkbox_name + "']").forEach( (el) => {
el.parentNode.parentNode.classList.remove("filtered-out");
})
} else {
// iterate over genre inputs
that.parentNode.parentNode.querySelectorAll("[name='" + checkbox_name + "']").forEach( (el) => {
// show/hide genre entry depending on whether genre name includes search string
let noHits = true;
if ( el.parentNode.textContent.toLowerCase().includes(that.value.toLowerCase()) ) {
el.parentNode.parentNode.classList.remove("filtered-out");
noHits = false;
} else {
el.parentNode.parentNode.classList.add("filtered-out");
}
if ( noHits ) {
console.log("everything has been filtered out")
}
});
}
}
// event handler for dropdown checkboxes; called whenever a checkbox is checked or unchecked
function updateDropdownSelected(that, summary) {
if ( that.checked ) {
// add badge when checkbox was checked
let badge = document.createElement("span");
badge.id = that.id + "-badge";
badge.classList.add("dropdown-badge");
badge.textContent = that.parentNode.textContent;
summary.appendChild(badge);
// add closing X to badge
let badgeX = document.createElement("span");
badgeX.classList.add("dropdown-badge-close");
badgeX.innerHTML = "&times;";
badge.appendChild(badgeX);
badgeX.addEventListener("click", removeDropdownBadge);
} else {
// remove badge when checkbox was unchecked
document.getElementById(that.id + "-badge").remove();
}
}
// unselect a previously checked checkbox by clicking its badge's "X"
function removeDropdownBadge(event) {
let input_id = this.parentNode.id.slice(0, -6);
document.getElementById(input_id).checked = false;
this.parentNode.remove();
event.stopPropagation();
}
// initializes all dropdown selects on the page
function initAllDropdownSelects() {
// initialize each dropdown individually
let dropdowns = document.querySelectorAll("form details.dropdown");
dropdowns.forEach(d => initDropdownSelect(d));
// now it's time to set the z-indices
// get the_works style sheet
let sheet = [...document.styleSheets].filter(s => s.ownerNode.getAttribute("href").includes("the_works"))[0];
const initialZ = 20;
// set z-index on dropdowns in reverse order
for ( let i = 0; i < dropdowns.length; i++ ) {
sheet.insertRule(`#${dropdowns[dropdowns.length-i-1].id} { z-index: ${initialZ + i*3};}`, sheet.cssRules.length);
sheet.insertRule(`#${dropdowns[dropdowns.length-i-1].id} .dropdown-badge { z-index: ${initialZ+1+i*3};}`, sheet.cssRules.length);
sheet.insertRule(`#${dropdowns[dropdowns.length-i-1].id} .dropdown-badge-close { z-index: ${initialZ+2+i*3};}`, sheet.cssRules.length);
}
// event handler for summary elements (see below)
function summaryClick(event, that) {
if ( event.target != that && that.contains(event.target) ) {
event.preventDefault();
}
}
// add event handler to summary elements preventing default behavior (toggling the details element) if the click actually targeted a badge
document.querySelectorAll("form details.dropdown summary").forEach(summary => summary.addEventListener("click", event => summaryClick(event, summary), true));
}
/*
* SEARCH-ALL FUNCTIONS
*/
function search_all(s, url) {
console.log(`JavaScript function search_all was called with search string ${s} and url ${url}`);
// remove previous results
document.getElementById("results").innerHTML = "";
if ( s == "" ) { return; }
// fetch search results
let fetch_url = new URL(url);
fetch_url.search = new URLSearchParams({query: s, case: document.getElementById("match_case").checked ? "match" : "no"});
console.log(`fetch_url is ${fetch_url}`);
fetch(fetch_url)
.then(response => response.json())
.then(data => {
// tell user if there are no results
if ( Object.keys(data).length === 0 ) {
let h3 = document.createElement("h3");
h3.innerText = "Die Suchanfrage ergab keine Treffer.";
document.getElementById("results").appendChild(h3);
return;
}
// iterate over search results
for ( const db_table of Object.keys(data) ) {
let columns = Object.keys(data[db_table][0]);
// build container, heading, table
let container = document.createElement("details");
container.classList.add("result-container");
container.setAttribute("name", "result-accordion");
let heading = document.createElement("summary");
container.appendChild(heading);
let table = document.createElement("table");
// build table head
let thead = document.createElement("thead");
let tr, th, td;
tr = document.createElement("tr");
for ( const column of columns) {
if ( column == "ID" ) { continue; }
th = document.createElement("th");
th.innerText = column;
tr.appendChild(th);
}
thead.appendChild(tr);
table.appendChild(thead);
// build table body
let tbody = document.createElement("tbody");
for ( const row of data[db_table] ) {
tr = document.createElement("tr");
for ( const column of columns ) {
// add column "ID" as data attribute, all other columns as regular table columns
if ( column == "ID" ) {
tr.setAttribute(`data-${db_table}-id`, row[column].toString());
continue;
}
td = document.createElement("td");
td.innerHTML = row[column] ? row[column].toString().replace(s, `<mark>${s}</mark>`) : "";
tr.appendChild(td);
}
tbody.appendChild(tr);
}
table.appendChild(tbody);
heading.innerHTML = `<h3>${db_table} (${tbody.childNodes.length} Treffer)</h3>`;
// add container element to DOM
container.append(table);
document.getElementById("results").appendChild(container);
// open <details> but only if it's the first element
if ( document.getElementById("results").children[0] == container ) {
container.setAttribute("open", "open");
}
document.getElementById("results").insertBefore(document.createElement("hr"), container);
}
})
}
/*
* MISC FUNCTIONS
*/
// validates a date to be of format YYYY, MM-YYYY, DD-MM-YYYY, or empty
function validate_date(tag_id="form_Erscheinungstag", monat_id="form_Erscheinungsmonat", jahr_id="form_Erscheinungsjahr") {
let t = document.getElementById(tag_id);
let m = document.getElementById(monat_id);
let j = document.getElementById(jahr_id);
t.setCustomValidity("");
t.setAttribute("aria-invalid", "false");
m.setCustomValidity("");
m.setAttribute("aria-invalid", "false");
if ( t.value != "" ) {
if ( j.value == "" || m.value == "" ) {
t.setCustomValidity("wenn der Tag angegeben ist, müssen Monat und Jahr ebenfalls angegeben sein");
t.setAttribute("aria-invalid", "true");
t.reportValidity();
}
} else if ( m.value != "" ) {
if ( j.value == "") {
m.setCustomValidity("wenn der Monat angegeben ist, muss das Jahr ebenfalls angegeben sein");
m.setAttribute("aria-invalid", "true");
m.reportValidity();
}
}
}