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// @license magnet:?xt=urn:btih:0b31508aeb0634b347b8270c7bee4d411b5d4109&dn=agpl-3.0.txt AGPL-3.0
'use strict';
/* globals context */
let loading = false;
let dnd_successful = false;
function dragend_process(t) {
t.setAttribute('draggable', 'false');
if (loading) {
setTimeout(function () {
dragend_process(t);
}, 50);
return;
}
if (!dnd_successful) {
t.style.display = '';
t.style.opacity = '';
t.setAttribute('draggable', 'true');
} else {
const p = t.parentElement;
t.remove();
if (p.childElementCount <= 1) {
p.insertAdjacentHTML('afterbegin',
'<li class="item feed disabled emptyCategory"><div class="alert-warn">' + context.i18n.category_empty + '</div></li>');
}
}
}
let dragFeedId = '';
let dragHtml = '';
function init_draggable() {
if (!window.context) {
if (window.console) {
console.log('FreshRSS category waiting for JS…');
}
setTimeout(init_draggable, 50);
return;
}
const draggable = '[draggable="true"]';
const dropzone = '[dropzone="move"]';
const dropSection = document.querySelector('.drop-section');
dropSection.ondragstart = function (ev) {
const li_draggable = ev.target.closest ? ev.target.closest(draggable) : null;
if (li_draggable) {
const ulClosest = li_draggable.closest('ul');
ulClosest.classList.add('drag-disallowed');
ulClosest.removeAttribute('dropzone', '');
const drag = ev.target.closest('[draggable]');
ev.dataTransfer.effectAllowed = 'move';
dragHtml = drag.outerHTML;
dragFeedId = drag.getAttribute('data-feed-id');
ev.dataTransfer.setData('text', dragFeedId);
drag.style.opacity = 0.5;
drag.classList.add('dragging');
li_draggable.closest('.drop-section').classList.add('drag-active');
dnd_successful = false;
}
};
dropSection.ondragend = function (ev) {
const li_draggable = ev.target.closest ? ev.target.closest(draggable) : null;
if (li_draggable) {
dragend_process(li_draggable);
li_draggable.classList.remove('dragging');
const disallowDragging = document.getElementsByClassName('drag-disallowed');
for (let i = 0; i < disallowDragging.length; i++) {
disallowDragging[i].setAttribute('dropzone', 'move');
disallowDragging[i].classList.remove('drag-disallowed');
}
li_draggable.closest('.drag-active').classList.remove('drag-active');
}
};
dropSection.ondragenter = function (ev) {
const ul_dropzone = ev.target.closest ? ev.target.closest(dropzone) : null;
if (ul_dropzone) {
ul_dropzone.classList.add('drag-hover');
return false;
}
};
dropSection.ondragleave = function (ev) {
const ul_dropzone = ev.target.closest ? ev.target.closest(dropzone) : null;
if (ul_dropzone) {
const scroll_top = document.documentElement.scrollTop;
const top = ul_dropzone.offsetTop;
const left = ul_dropzone.offsetLeft;
const right = left + ul_dropzone.clientWidth;
const bottom = top + ul_dropzone.clientHeight;
const mouse_x = ev.screenX;
const mouse_y = ev.clientY + scroll_top;
if (left <= mouse_x && mouse_x <= right &&
top <= mouse_y && mouse_y <= bottom) {
// HACK because dragleave is triggered when hovering children!
return;
}
ul_dropzone.classList.remove('drag-hover');
}
};
dropSection.ondragover = function (ev) {
const li = ev.target.closest ? ev.target.closest(dropzone) : null;
if (li) {
li.closest('ul').classList.remove('drag-drop');
ev.dataTransfer.dropEffect = 'move';
return false;
}
};
dropSection.ondrop = function (ev) {
if (dragFeedId) {
const ul_dropzone = ev.target.closest ? ev.target.closest(dropzone) : null;
if (ul_dropzone) {
loading = true;
const req = new XMLHttpRequest();
req.open('POST', './?c=feed&a=move', true);
req.responseType = 'json';
req.onload = function (e) {
if (this.status == 200) {
ul_dropzone.insertAdjacentHTML('afterbegin', dragHtml);
ul_dropzone.firstChild.classList.add('moved');
ul_dropzone.scrollTop = 0;
const disabledElement = ul_dropzone.getElementsByClassName('disabled');
if (disabledElement.length > 0) {
disabledElement[0].remove();
}
dnd_successful = true;
ul_dropzone.closest('ul').classList.add('drag-drop');
}
};
req.onloadend = function (e) {
loading = false;
dragFeedId = '';
dragHtml = '';
};
req.setRequestHeader('Content-Type', 'application/json; charset=utf-8');
req.send(JSON.stringify({
f_id: dragFeedId,
c_id: ul_dropzone.getAttribute('data-cat-id'),
_csrf: context.csrf,
}));
ul_dropzone.closest('ul').classList.remove('drag-hover');
return false;
}
}
};
}
if (document.readyState && document.readyState !== 'loading') {
init_draggable();
} else if (document.addEventListener) {
document.addEventListener('DOMContentLoaded', function () {
init_draggable();
}, false);
}
// @license-end
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