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/** |
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* Register a function to be called when the document is "ready", i.e. |
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* all the markup has been placed on the page. |
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* |
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* It does not wait until additional resources (stylesheets, images, |
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* subframes) have been loaded. |
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*/ |
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function onDomReady(callback) { |
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if (document.readyState === 'complete' || document.readyState !== 'loading') { |
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// The document has already fully loaded. |
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callback(); |
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} else { |
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document.addEventListener('DOMContentLoaded', callback); |
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} |
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} |
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// --------------------------------------------------------------------- |
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// XHR requests |
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function post_on_click(selector) { |
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_request_on_click(selector, 'POST'); |
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} |
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function post_on_click_then_reload(selector) { |
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_request_on_click_then_reload(selector, 'POST'); |
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} |
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function confirmed_post_on_click(selector, confirmation_label) { |
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_confirmed_request_on_click(selector, confirmation_label, 'POST'); |
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} |
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function confirmed_post_on_click_then_reload(selector, confirmation_label) { |
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_confirmed_request_on_click_then_reload(selector, confirmation_label, 'POST'); |
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} |
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function delete_on_click(selector) { |
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_request_on_click(selector, 'DELETE'); |
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} |
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function delete_on_click_then_reload(selector) { |
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_request_on_click_then_reload(selector, 'DELETE'); |
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} |
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function confirmed_delete_on_click(selector, confirmation_label) { |
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_confirmed_request_on_click(selector, confirmation_label, 'DELETE'); |
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} |
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function confirmed_delete_on_click_then_reload(selector, confirmation_label) { |
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_confirmed_request_on_click_then_reload(selector, confirmation_label, 'DELETE'); |
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} |
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function _request_on_click(selector, method) { |
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_onClickCallbackWithHref(selector, href => { |
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_ajax_then_redirect_to_location_response_header(method, href); |
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}); |
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} |
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function _request_on_click_then_reload(selector, method) { |
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_onClickCallbackWithHref(selector, href => { |
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_ajax_then_reload(method, href); |
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}); |
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} |
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function _confirmed_request_on_click(selector, confirmation_label, method) { |
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_onClickCallbackWithHref(selector, href => { |
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if (confirm(confirmation_label)) { |
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_ajax_then_redirect_to_location_response_header(method, href); |
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}; |
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}); |
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} |
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function _confirmed_request_on_click_then_reload(selector, confirmation_label, method) { |
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_onClickCallbackWithHref(selector, href => { |
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if (confirm(confirmation_label)) { |
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_ajax_then_reload(method, href); |
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}; |
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}); |
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} |
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function _onClickCallbackWithHref(selector, callback) { |
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const elements = document.querySelectorAll(selector); |
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elements.forEach(element => { |
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element.addEventListener('click', event => { |
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const href = element.getAttribute('href'); |
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callback(href); |
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event.preventDefault(); |
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}); |
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}); |
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} |
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function _ajax_then_redirect_to_location_response_header(method, request_url) { |
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_ajax(method, request_url, response => { |
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if (response.status == 204) { |
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const redirectUrl = response.headers.get('Location'); |
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if (redirectUrl !== null) { |
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location.href = redirectUrl; |
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} |
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} |
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}); |
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} |
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function _ajax_then_reload(method, request_url) { |
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_ajax(method, request_url, response => { |
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if (response.status == 204) { |
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location.href = location.href; |
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} |
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}); |
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} |
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function _ajax(method, url, on_complete) { |
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fetch(url, {method: method}) |
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.then(response => on_complete(response)); |
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} |
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// --------------------------------------------------------------------- |
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// dropdown menus |
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/** |
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* Make dropdown menus open if their respective trigger is clicked. |
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*/ |
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function enableDropdownMenuToggles() { |
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const dropdownToggles = document.querySelectorAll('.dropdown .dropdown-toggle'); |
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dropdownToggles.forEach(triggerElement => { |
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triggerElement.addEventListener('click', event => { |
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const dropdown = triggerElement.parentNode; |
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dropdown.classList.toggle('open'); |
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event.preventDefault(); |
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}); |
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}); |
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} |
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/** |
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* Close all open dropdown menus but the one that has been clicked (if |
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* any). |
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*/ |
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function closeOpenDropdownMenus(clickTarget) { |
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const openDropdowns = document.querySelectorAll('.dropdown.open'); |
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openDropdowns.forEach(openDropdown => { |
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if (!openDropdown.contains(clickTarget)) { |
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// Click was outside of this dropdown menu, so close it. |
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openDropdown.classList.remove('open'); |
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} |
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}); |
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} |
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153
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// Add behavior to dropdown menus. |
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onDomReady(() => { |
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enableDropdownMenuToggles(); |
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// Close open dropdowns if user clicks outside of an open dropdown. |
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document.addEventListener('click', event => closeOpenDropdownMenus(event.target)); |
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}); |
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162
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// --------------------------------------------------------------------- |
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// clipboard |
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/** |
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* Register an element as click trigger to copy the value of a field to |
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* the clipboard. |
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*/ |
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function enableCopyToClipboard(triggerElementId) { |
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const triggerElement = document.getElementById(triggerElementId); |
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if (triggerElement === null) { |
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return; |
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} |
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triggerElement.addEventListener('click', () => { |
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const fieldId = triggerElement.dataset.fieldId; |
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const field = document.getElementById(fieldId); |
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field.focus(); |
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field.select(); |
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try { |
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document.execCommand('copy'); |
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} catch (err) {} |
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field.blur(); |
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}); |
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} |
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191
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// --------------------------------------------------------------------- |
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// forms |
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// Disable the submit button of forms with class |
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// `disable-submit-button-on-submit` on submit. |
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onDomReady(() => { |
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const formsWhoseSubmitButtonShouldBeDisabledOnSubmit = document |
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.querySelectorAll('form.disable-submit-button-on-submit'); |
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formsWhoseSubmitButtonShouldBeDisabledOnSubmit.forEach(form => { |
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form.addEventListener('submit', () => { |
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const submitButton = form.querySelector('button[type="submit"]'); |
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submitButton.disabled = true; |
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submitButton.innerHTML += ' <svg class="icon spinning"><use xlink:href="/static/style/icons.svg#spinner"></use></svg>'; |
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}); |
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}); |
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}); |
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// --------------------------------------------------------------------- |
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// log-out |
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// Enable log-out. |
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onDomReady(() => { |
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document.querySelectorAll('a[data-action="log-out"]') |
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.forEach(anchor => { |
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anchor.addEventListener('click', event => { |
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if (confirm('Wirklich abmelden?')) { |
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const href = anchor.getAttribute('href'); |
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fetch(href, {method: 'POST'}) |
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.then(response => location.href = anchor.dataset.redirectTarget); |
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}; |
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event.preventDefault(); |
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}); |
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}); |
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}); |
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This check looks for parameters in functions that are not used in the function body and are not followed by other parameters which are used inside the function.