@logicflow/extension/lib/components/menu/index.js

LogicFlow Extensions

"use strict";
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Object.defineProperty(exports, "__esModule", { value: true });
exports.Menu = void 0;
var DefaultNodeMenuKey = 'lf:defaultNodeMenu';
var DefaultEdgeMenuKey = 'lf:defaultEdgeMenu';
var DefaultGraphMenuKey = 'lf:defaultGraphMenu';
var DefaultSelectionMenuKey = 'lf:defaultSelectionMenu';
var Menu = /** @class */ (function () {
    function Menu(_a) {
        var lf = _a.lf;
        var _this = this;
        this.__currentData = null;
        this.lf = lf;
        var isSilentMode = lf.options.isSilentMode;
        if (!isSilentMode) {
            this.__menuDOM = document.createElement('ul');
            this.menuTypeMap = new Map();
            this.init();
            this.lf.setMenuConfig = function (config) {
                _this.setMenuConfig(config);
            };
            this.lf.addMenuConfig = function (config) {
                _this.addMenuConfig(config);
            };
            this.lf.setMenuByType = function (config) {
                _this.setMenuByType(config);
            };
        }
    }
    /**
     * 初始化设置默认内置菜单栏
     */
    Menu.prototype.init = function () {
        var _this = this;
        var _a, _b, _c, _d;
        var defaultNodeMenu = [
            {
                text: '删除',
                callback: function (node) {
                    _this.lf.deleteNode(node.id);
                },
            },
            {
                text: '编辑文本',
                callback: function (node) {
                    _this.lf.graphModel.editText(node.id);
                },
            },
            {
                text: '复制',
                callback: function (node) {
                    _this.lf.cloneNode(node.id);
                },
            },
        ];
        (_a = this.menuTypeMap) === null || _a === void 0 ? void 0 : _a.set(DefaultNodeMenuKey, defaultNodeMenu);
        var defaultEdgeMenu = [
            {
                text: '删除',
                callback: function (edge) {
                    _this.lf.deleteEdge(edge.id);
                },
            },
            {
                text: '编辑文本',
                callback: function (edge) {
                    _this.lf.graphModel.editText(edge.id);
                },
            },
        ];
        (_b = this.menuTypeMap) === null || _b === void 0 ? void 0 : _b.set(DefaultEdgeMenuKey, defaultEdgeMenu);
        (_c = this.menuTypeMap) === null || _c === void 0 ? void 0 : _c.set(DefaultGraphMenuKey, []);
        var DefaultSelectionMenu = [
            {
                text: '删除',
                callback: function (elements) {
                    _this.lf.clearSelectElements();
                    elements.edges.forEach(function (edge) { return _this.lf.deleteEdge(edge.id); });
                    elements.nodes.forEach(function (node) { return _this.lf.deleteNode(node.id); });
                },
            },
        ];
        (_d = this.menuTypeMap) === null || _d === void 0 ? void 0 : _d.set(DefaultSelectionMenuKey, DefaultSelectionMenu);
    };
    Menu.prototype.render = function (lf, container) {
        var _this = this;
        if (lf.options.isSilentMode)
            return;
        this.__container = container;
        this.__currentData = null; // 当前展示的菜单所属元素的model数据
        if (this.__menuDOM) {
            this.__menuDOM.className = 'lf-menu';
            container.appendChild(this.__menuDOM);
            // 将选项的click事件委托至menu容器
            // 在捕获阶段拦截并执行
            this.__menuDOM.addEventListener('click', function (event) {
                event.stopPropagation();
                var target = event.target;
                // 菜单有多层dom，需要精确获取菜单项所对应的dom
                // 除菜单项dom外，应考虑两种情况
                // 1. 菜单项的子元素 2. 菜单外层容器
                while (Array.from(target.classList).indexOf('lf-menu-item') === -1 &&
                    Array.from(target.classList).indexOf('lf-menu') === -1) {
                    target = target === null || target === void 0 ? void 0 : target.parentElement;
                }
                if (Array.from(target.classList).indexOf('lf-menu-item') > -1) {
                    // 如果点击区域在菜单项内
                    ;
                    target.onclickCallback(_this.__currentData);
                    // 点击后隐藏menu
                    if (_this.__menuDOM) {
                        _this.__menuDOM.style.display = 'none';
                    }
                    _this.__currentData = null;
                }
                else {
                    // 如果点击区域不在菜单项内
                    console.warn('点击区域不在菜单项内，请检查代码！');
                }
            }, true);
        }
        // 通过事件控制菜单的显示和隐藏
        this.lf.on('node:contextmenu', function (_a) {
            var _b, _c;
            var data = _a.data, position = _a.position, e = _a.e;
            var _d = position.domOverlayPosition, x = _d.x, y = _d.y;
            var id = data.id;
            var model = _this.lf.graphModel.getNodeModelById(id);
            if (!model)
                return;
            var menuList = [];
            var typeMenus = (_b = _this.menuTypeMap) === null || _b === void 0 ? void 0 : _b.get(model.type);
            // 1.如果单个节点自定义了菜单，以单个节点自定义为准
            if (model && model.menu && Array.isArray(model.menu)) {
                menuList = model.menu;
            }
            else if (typeMenus) {
                // 2.如果当前节点类型定义了菜单，再取该配置
                menuList = typeMenus;
            }
            else {
                // 3.最后取全局默认
                menuList = (_c = _this.menuTypeMap) === null || _c === void 0 ? void 0 : _c.get(DefaultNodeMenuKey);
            }
            _this.__currentData = data;
            _this.showMenu(x, y, menuList, {
                width: model.width,
                height: model.height,
                clientX: e.clientX,
                clientY: e.clientY,
            });
        });
        this.lf.on('edge:contextmenu', function (_a) {
            var _b, _c, _d;
            var data = _a.data, position = _a.position, e = _a.e;
            var _e = position.domOverlayPosition, x = _e.x, y = _e.y;
            var id = data.id;
            var model = _this.lf.graphModel.getEdgeModelById(id);
            if (!model)
                return;
            var menuList = [];
            var typeMenus = (_b = _this.menuTypeMap) === null || _b === void 0 ? void 0 : _b.get(model.type);
            // 菜单优先级： model.menu > typeMenus > defaultEdgeMenu，注释同上节点
            if (model && model.menu && Array.isArray(model.menu)) {
                menuList = model.menu;
            }
            else if (typeMenus) {
                menuList = typeMenus;
            }
            else {
                menuList = (_d = (_c = _this.menuTypeMap) === null || _c === void 0 ? void 0 : _c.get(DefaultEdgeMenuKey)) !== null && _d !== void 0 ? _d : [];
            }
            _this.__currentData = data;
            _this.showMenu(x, y, menuList, {
                width: model.width,
                height: model.height,
                clientX: e.clientX,
                clientY: e.clientY,
            });
        });
        this.lf.on('blank:contextmenu', function (_a) {
            var _b, _c;
            var position = _a.position;
            var menuList = (_c = (_b = _this.menuTypeMap) === null || _b === void 0 ? void 0 : _b.get(DefaultGraphMenuKey)) !== null && _c !== void 0 ? _c : [];
            var _d = position.domOverlayPosition, x = _d.x, y = _d.y;
            _this.__currentData = __assign({}, position.canvasOverlayPosition);
            _this.showMenu(x, y, menuList);
        });
        this.lf.on('selection:contextmenu', function (_a) {
            var _b;
            var data = _a.data, position = _a.position;
            var menuList = (_b = _this.menuTypeMap) === null || _b === void 0 ? void 0 : _b.get(DefaultSelectionMenuKey);
            var _c = position.domOverlayPosition, x = _c.x, y = _c.y;
            _this.__currentData = data;
            _this.showMenu(x, y, menuList);
        });
        this.lf.on('node:mousedown', function () {
            _this.__menuDOM.style.display = 'none';
        });
        this.lf.on('edge:click', function () {
            _this.__menuDOM.style.display = 'none';
        });
        this.lf.on('blank:click', function () {
            _this.__menuDOM.style.display = 'none';
        });
    };
    Menu.prototype.destroy = function () {
        var _a;
        if (this.__menuDOM) {
            (_a = this === null || this === void 0 ? void 0 : this.__container) === null || _a === void 0 ? void 0 : _a.removeChild(this.__menuDOM);
            this.__menuDOM = undefined;
        }
    };
    Menu.prototype.showMenu = function (x, y, menuList, options) {
        if (!menuList || !menuList.length)
            return;
        var menu = this.__menuDOM;
        if (menu) {
            // 菜单容器不变，需要先清空内部的菜单项
            menu.innerHTML = '';
            menu.append.apply(menu, __spreadArray([], __read(this.__getMenuDom(menuList)), false));
            // 菜单中没有项，不显示
            if (!menu.children.length)
                return;
            menu.style.display = 'block';
            if (!options) {
                menu.style.top = "".concat(y, "px");
                menu.style.left = "".concat(x, "px");
                return;
            }
            // https://github.com/didi/LogicFlow/issues/1019
            // 根据边界判断菜单的left 和 top
            var width = options.width, height = options.height, clientX = options.clientX, clientY = options.clientY;
            var graphModel = this.lf.graphModel;
            var menuWidth = menu.offsetWidth;
            var menuIsRightShow = true;
            // ======先进行可视屏幕范围的判断=======
            // 浏览器窗口可视区域兼容性写法
            // eslint-disable-next-line max-len
            var windowMaxX = window.innerWidth ||
                document.documentElement.clientWidth ||
                document.body.clientWidth;
            var rightDistance = windowMaxX - clientX;
            // ======先进行可视屏幕范围的判断=======
            // ========再进行画布范围的判断========
            var graphRect = graphModel.rootEl.getBoundingClientRect();
            var graphMaxX = graphRect.left + graphRect.width;
            if (graphMaxX < windowMaxX) {
                // 画布右边小于可视屏幕范围的最右边，取画布右边作为极限值，计算出当前触摸点距离右边极限值的距离
                rightDistance = graphMaxX - clientX;
            }
            // ========再进行画布范围的判断========
            // 根据当前触摸点距离右边的距离 跟 menuWidth进行比较
            if (rightDistance < menuWidth) {
                // 空间不足够，显示在左边
                menuIsRightShow = false;
            }
            if (menuIsRightShow) {
                menu.style.left = "".concat(x, "px");
            }
            else {
                menu.style.left = "".concat(x - width, "px");
            }
            var menuHeight = menu.offsetHeight;
            var menuIsBottomShow = true;
            // ======先进行可视屏幕范围的判断=======
            // 浏览器窗口可视区域兼容性写法
            // eslint-disable-next-line max-len
            var windowMaxY = window.innerHeight ||
                document.documentElement.clientHeight ||
                document.body.clientHeight;
            var bottomDistance = windowMaxY - clientY;
            // ======先进行可视屏幕范围的判断=======
            // ========再进行画布范围的判断========
            var graphMaxY = graphRect.top + graphRect.height;
            if (graphMaxY < windowMaxY) {
                // 画布底部小于可视屏幕范围的最底边，取画布底部作为极限值，计算出当前触摸点距离底部极限值的距离
                bottomDistance = graphMaxY - clientY;
            }
            // ========再进行画布范围的判断========
            if (bottomDistance < menuHeight) {
                // 如果下边距离太小，无法显示menu，则向上显示
                menuIsBottomShow = false;
            }
            if (menuIsBottomShow) {
                menu.style.top = "".concat(y, "px");
            }
            else {
                menu.style.top = "".concat(y - height, "px");
            }
        }
    };
    /**
     * 设置指定类型元素的菜单
     */
    Menu.prototype.setMenuByType = function (_a) {
        var _b;
        var type = _a.type, menu = _a.menu;
        if (!type || !menu) {
            return;
        }
        (_b = this.menuTypeMap) === null || _b === void 0 ? void 0 : _b.set(type, menu);
    };
    /**
     * 获取 Menu DOM
     * @param list 菜单项
     * @return 菜单项 DOM
     */
    Menu.prototype.__getMenuDom = function (list) {
        var menuList = [];
        list &&
            list.length > 0 &&
            list.forEach(function (item) {
                var element = document.createElement('li');
                if (item.className) {
                    element.className = "lf-menu-item ".concat(item.className);
                }
                else {
                    element.className = 'lf-menu-item';
                }
                if (item.icon === true) {
                    var icon = document.createElement('span');
                    icon.className = 'lf-menu-item-icon';
                    element.appendChild(icon);
                }
                var text = document.createElement('span');
                text.className = 'lf-menu-item-text';
                if (item.text) {
                    text.innerText = item.text;
                }
                element.appendChild(text);
                element.onclickCallback = item.callback;
                menuList.push(element);
            });
        return menuList;
    };
    // 复写菜单
    Menu.prototype.setMenuConfig = function (config) {
        var _a, _b, _c;
        if (!config) {
            return;
        }
        // node
        config.nodeMenu !== undefined &&
            ((_a = this.menuTypeMap) === null || _a === void 0 ? void 0 : _a.set(DefaultNodeMenuKey, config.nodeMenu ? config.nodeMenu : []));
        // edge
        config.edgeMenu !== undefined &&
            ((_b = this.menuTypeMap) === null || _b === void 0 ? void 0 : _b.set(DefaultEdgeMenuKey, config.edgeMenu ? config.edgeMenu : []));
        // graph
        config.graphMenu !== undefined &&
            ((_c = this.menuTypeMap) === null || _c === void 0 ? void 0 : _c.set(DefaultGraphMenuKey, config.graphMenu ? config.graphMenu : []));
    };
    // 在默认菜单后面追加菜单项
    Menu.prototype.addMenuConfig = function (config) {
        var _a, _b, _c, _d, _e, _f, _g, _h, _j;
        if (!config) {
            return;
        }
        // 追加项时，只支持数组类型，对false不做操作
        if (Array.isArray(config.nodeMenu)) {
            var menuList = (_b = (_a = this.menuTypeMap) === null || _a === void 0 ? void 0 : _a.get(DefaultNodeMenuKey)) !== null && _b !== void 0 ? _b : [];
            (_c = this.menuTypeMap) === null || _c === void 0 ? void 0 : _c.set(DefaultNodeMenuKey, menuList.concat(config.nodeMenu));
        }
        if (Array.isArray(config.edgeMenu)) {
            var menuList = (_e = (_d = this.menuTypeMap) === null || _d === void 0 ? void 0 : _d.get(DefaultEdgeMenuKey)) !== null && _e !== void 0 ? _e : [];
            (_f = this.menuTypeMap) === null || _f === void 0 ? void 0 : _f.set(DefaultEdgeMenuKey, menuList.concat(config.edgeMenu));
        }
        if (Array.isArray(config.graphMenu)) {
            var menuList = (_h = (_g = this.menuTypeMap) === null || _g === void 0 ? void 0 : _g.get(DefaultGraphMenuKey)) !== null && _h !== void 0 ? _h : [];
            (_j = this.menuTypeMap) === null || _j === void 0 ? void 0 : _j.set(DefaultGraphMenuKey, menuList.concat(config.graphMenu));
        }
    };
    /**
     * @deprecated
     * 复写添加
     */
    Menu.prototype.changeMenuItem = function (type, config) {
        if (type === 'add') {
            this.addMenuConfig(config);
        }
        else if (type === 'reset') {
            this.setMenuConfig(config);
        }
        else {
            throw new Error("The first parameter of changeMenuConfig should be 'add' or 'reset'");
        }
    };
    Menu.pluginName = 'menu';
    return Menu;
}());
exports.Menu = Menu;
exports.default = Menu;