mirror of https://github.com/FreshRSS/FreshRSS.git
97 lines
2.8 KiB
JavaScript
97 lines
2.8 KiB
JavaScript
// @license magnet:?xt=urn:btih:0b31508aeb0634b347b8270c7bee4d411b5d4109&dn=agpl-3.0.txt AGPL-3.0
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'use strict';
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const init_draggable_list = function () {
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if (!window.context) {
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if (window.console) {
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console.log('FreshRSS draggable list waiting for JS…');
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}
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setTimeout(init_draggable_list, 50);
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return;
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}
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let source;
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const draggableList = document.querySelector('.draggableList');
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const addMarker = (position, element) => {
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const hr = draggableList.querySelector('hr.drag-drop-marker');
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if (null === hr) {
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element.insertAdjacentHTML(position, '<hr class="drag-drop-marker" />');
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}
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};
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const removeMarker = () => {
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const hr = draggableList.querySelector('hr.drag-drop-marker');
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if (null !== hr) {
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hr.remove();
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}
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};
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draggableList.addEventListener('dragstart', event => {
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source = event.target.closest('[draggable="true"]');
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event.dataTransfer.setData('text/html', source.outerHTML);
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event.dataTransfer.effectAllowed = 'move';
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});
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draggableList.addEventListener('dragover', event => {
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event.preventDefault();
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if (!event.target || !event.target.closest) {
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return;
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}
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const draggableItem = event.target.closest('[draggable="true"]');
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if (null === draggableItem || source === draggableItem) {
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return;
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}
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const rect = draggableItem.getBoundingClientRect();
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if (event.clientY < (rect.top + rect.height / 2)) {
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addMarker('beforebegin', draggableItem);
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} else {
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addMarker('afterend', draggableItem);
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}
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});
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draggableList.addEventListener('dragleave', event => {
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event.preventDefault();
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removeMarker();
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});
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draggableList.addEventListener('drop', event => {
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event.preventDefault();
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event.stopPropagation();
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if (!event.target || !event.target.closest) {
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return;
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}
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const draggableItem = event.target.closest('[draggable="true"]');
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if (null === draggableItem || source === draggableItem) {
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return;
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}
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const rect = draggableItem.getBoundingClientRect();
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if (event.clientY < (rect.top + rect.height / 2)) {
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draggableItem.insertAdjacentHTML('beforebegin', event.dataTransfer.getData('text/html'));
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} else {
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draggableItem.insertAdjacentHTML('afterend', event.dataTransfer.getData('text/html'));
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}
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source.remove();
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removeMarker();
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draggableList.submit();
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});
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// This is needed to work around a Firefox bug → https://bugzilla.mozilla.org/show_bug.cgi?id=800050
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draggableList.addEventListener('focusin', event => {
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if (!event.target || !event.target.closest) {
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return;
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}
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const itemName = event.target.closest('input[type="text"]');
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if (null !== itemName) {
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itemName.select();
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}
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});
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};
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if (document.readyState && document.readyState !== 'loading') {
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init_draggable_list();
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} else if (document.addEventListener) {
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document.addEventListener('DOMContentLoaded', event => init_draggable_list(), false);
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}
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// @license-end
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