1 files changed, 118 insertions, 0 deletions
diff --git a/p/scripts/category.js b/p/scripts/category.js
new file mode 100644
index 000000000..c33e68528
--- /dev/null
+++ b/p/scripts/category.js
@@ -0,0 +1,118 @@
+"use strict";
+
+var loading = false,
+	dnd_successful = false;
+
+function dragend_process(t) {
+	t.style.display = 'none';
+
+	if (loading) {
+		window.setTimeout(function() {
+			dragend_process(t);
+		}, 50);
+	}
+
+	if (!dnd_successful) {
+		t.style.display = 'block';
+		t.style.opacity = 1.0;
+	} else {
+		var parent = $(t.parentNode);
+		$(t).remove();
+
+		if (parent.children().length <= 0) {
+			parent.append('<li class="item disabled" dropzone="move">' + i18n['category_empty'] + '</li>');
+		}
+	}
+}
+
+function init_draggable() {
+	if (!(window.$ && window.i18n)) {
+		if (window.console) {
+			console.log('FreshRSS waiting for JS…');
+		}
+		window.setTimeout(init_draggable, 50);
+		return;
+	}
+
+	$.event.props.push('dataTransfer');
+
+	var draggable = '[draggable="true"]',
+	    dropzone = '[dropzone="move"]';
+
+	$('.drop-section').on('dragstart', draggable, function(e) {
+		e.dataTransfer.effectAllowed = 'move';
+		e.dataTransfer.setData('text/html', e.target.outerHTML);
+		e.dataTransfer.setData('text', e.target.getAttribute('data-feed-id'));
+		e.target.style.opacity = 0.3;
+
+		dnd_successful = false;
+	});
+	$('.drop-section').on('dragend', draggable, function(e) {
+		dragend_process(e.target);
+	});
+
+	$('.drop-section').on('dragenter', dropzone, function(e) {
+		$(this).addClass('drag-hover');
+
+		e.preventDefault();
+	});
+	$('.drop-section').on('dragleave', dropzone, function(e) {
+		var pos_this = $(this).position(),
+		    scroll_top = $(document).scrollTop(),
+		    top = pos_this.top,
+		    left = pos_this.left,
+		    right = left + $(this).width(),
+		    bottom = top + $(this).height(),
+		    mouse_x = e.originalEvent.screenX,
+		    mouse_y = e.originalEvent.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;
+		}
+		$(this).removeClass('drag-hover');
+	});
+	$('.drop-section').on('dragover', dropzone, function(e) {
+		e.dataTransfer.dropEffect = "move";
+
+		e.preventDefault();
+		return false;
+	});
+	$('.drop-section').on('drop', dropzone, function(e) {
+		var feed_id = e.dataTransfer.getData('text'),
+		    cat_id = e.target.parentNode.getAttribute('data-cat-id');
+
+		loading = true;
+
+		$.ajax({
+			type: 'POST',
+			url: './?c=feed&a=move',
+			data : {
+				f_id: feed_id,
+				c_id: cat_id
+			}
+		}).success(function() {
+			$(e.target).after(e.dataTransfer.getData('text/html'));
+			if ($(e.target).hasClass('disabled')) {
+				$(e.target).remove();
+			}
+			dnd_successful = true;
+		}).complete(function() {
+			loading = false;
+		});
+
+		$(this).removeClass('drag-hover');
+
+		e.preventDefault();
+	});
+}
+
+
+if (document.readyState && document.readyState !== 'loading') {
+	init_draggable();
+} else if (document.addEventListener) {
+	document.addEventListener('DOMContentLoaded', function () {
+		init_draggable();
+	}, false);
+}