Improve subtask toggle

assets/js/src/Subtask.js

@@ -1,86 +0,0 @@
-Kanboard.Subtask = function(app) {
-    this.app = app;
-};
-
-Kanboard.Subtask.prototype.listen = function() {
-    var self = this;
-    this.dragAndDrop();
-
-    $(document).on("click", ".js-subtask-toggle-status", function(e) {
-        var el = $(this);
-        e.preventDefault();
-
-        $.ajax({
-            cache: false,
-            url: el.attr("href"),
-            success: function(data) {
-                $(el).closest('.subtask-title').replaceWith(data);
-            }
-        });
-    });
-
-    $(document).on("click", ".js-subtask-toggle-timer", function(e) {
-        var el = $(this);
-        e.preventDefault();
-
-        $.ajax({
-            cache: false,
-            url: el.attr("href"),
-            success: function(data) {
-                $(el).closest('.subtask-time-tracking').replaceWith(data);
-            }
-        });
-    });
-};
-
-Kanboard.Subtask.prototype.dragAndDrop = function() {
-    var self = this;
-
-    $(".draggable-row-handle").mouseenter(function() {
-        $(this).parent().parent().addClass("draggable-item-hover");
-    }).mouseleave(function() {
-        $(this).parent().parent().removeClass("draggable-item-hover");
-    });
-
-    $(".subtasks-table tbody").sortable({
-        forcePlaceholderSize: true,
-        handle: "td:first i",
-        helper: function(e, ui) {
-            ui.children().each(function() {
-                $(this).width($(this).width());
-            });
-
-            return ui;
-        },
-        stop: function(event, ui) {
-            var subtask = ui.item;
-            subtask.removeClass("draggable-item-selected");
-            self.savePosition(subtask.data("subtask-id"), subtask.index() + 1);
-        },
-        start: function(event, ui) {
-            ui.item.addClass("draggable-item-selected");
-        }
-    }).disableSelection();
-};
-
-Kanboard.Subtask.prototype.savePosition = function(subtaskId, position) {
-    var url = $(".subtasks-table").data("save-position-url");
-    var self = this;
-
-    this.app.showLoadingIcon();
-
-    $.ajax({
-        cache: false,
-        url: url,
-        contentType: "application/json",
-        type: "POST",
-        processData: false,
-        data: JSON.stringify({
-            "subtask_id": subtaskId,
-            "position": position
-        }),
-        complete: function() {
-            self.app.hideLoadingIcon();
-        }
-    });
-};