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"use strict";
/* globals context */
/* jshint esversion:6, strict:global */
var loading = false,
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 <= 0) {
p.insertAdjacentHTML('beforeend', '<li class="item disabled" dropzone="move">' + context.i18n.category_empty + '</li>');
}
}
}
var dragFeedId = '',
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"]',
dropzone = '[dropzone="move"]',
dropSection = document.querySelector('.drop-section');
dropSection.ondragstart = function(ev) {
const li = ev.target.closest ? ev.target.closest(draggable) : null;
if (li) {
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 = 0.3;
dnd_successful = false;
}
};
dropSection.ondragend = function(ev) {
const li = ev.target.closest ? ev.target.closest(draggable) : null;
if (li) {
dragend_process(li);
}
};
dropSection.ondragenter = function(ev) {
const li = ev.target.closest ? ev.target.closest(dropzone) : null;
if (li) {
li.classList.add('drag-hover');
return false;
}
};
dropSection.onddragleave = function(ev) {
const li = ev.target.closest ? ev.target.closest(dropzone) : null;
if (li) {
const scroll_top = document.documentElement.scrollTop,
top = li.offsetTop,
left = li.offsetLeft,
right = left + li.clientWidth,
bottom = top + li.clientHeight,
mouse_x = ev.screenX,
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;
}
li.classList.remove('drag-hover');
}
};
dropSection.ondragover = function(ev) {
const li = ev.target.closest ? ev.target.closest(dropzone) : null;
if (li) {
ev.dataTransfer.dropEffect = "move";
return false;
}
};
dropSection.ondrop = function(ev) {
const li = ev.target.closest ? ev.target.closest(dropzone) : null;
if (li) {
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) {
li.insertAdjacentHTML('afterend', dragHtml);
if (li.classList.contains('disabled')) {
li.remove();
}
dnd_successful = true;
}
};
req.onloadend = function (e) {
loading = false;
dragFeedId = '';
dragHtml = '';
};
req.setRequestHeader('Content-Type', 'application/json');
req.send(JSON.stringify({
f_id: dragFeedId,
c_id: li.parentElement.getAttribute('data-cat-id'),
_csrf: context.csrf,
}));
li.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);
}
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