@difizen/mana-app
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192 lines (190 loc) • 10.4 kB
JavaScript
function _typeof(o) { "@babel/helpers - typeof"; return _typeof = "function" == typeof Symbol && "symbol" == typeof Symbol.iterator ? function (o) { return typeof o; } : function (o) { return o && "function" == typeof Symbol && o.constructor === Symbol && o !== Symbol.prototype ? "symbol" : typeof o; }, _typeof(o); }
var _dec, _dec2, _class, _class2;
function _createForOfIteratorHelper(o, allowArrayLike) { var it = typeof Symbol !== "undefined" && o[Symbol.iterator] || o["@@iterator"]; if (!it) { if (Array.isArray(o) || (it = _unsupportedIterableToArray(o)) || allowArrayLike && o && typeof o.length === "number") { if (it) o = it; var i = 0; var F = function F() {}; return { s: F, n: function n() { if (i >= o.length) return { done: true }; return { done: false, value: o[i++] }; }, e: function e(_e) { throw _e; }, f: F }; } throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method."); } var normalCompletion = true, didErr = false, err; return { s: function s() { it = it.call(o); }, n: function n() { var step = it.next(); normalCompletion = step.done; return step; }, e: function e(_e2) { didErr = true; err = _e2; }, f: function f() { try { if (!normalCompletion && it.return != null) it.return(); } finally { if (didErr) throw err; } } }; }
function _unsupportedIterableToArray(o, minLen) { if (!o) return; if (typeof o === "string") return _arrayLikeToArray(o, minLen); var n = Object.prototype.toString.call(o).slice(8, -1); if (n === "Object" && o.constructor) n = o.constructor.name; if (n === "Map" || n === "Set") return Array.from(o); if (n === "Arguments" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _arrayLikeToArray(o, minLen); }
function _arrayLikeToArray(arr, len) { if (len == null || len > arr.length) len = arr.length; for (var i = 0, arr2 = new Array(len); i < len; i++) arr2[i] = arr[i]; return arr2; }
function ownKeys(e, r) { var t = Object.keys(e); if (Object.getOwnPropertySymbols) { var o = Object.getOwnPropertySymbols(e); r && (o = o.filter(function (r) { return Object.getOwnPropertyDescriptor(e, r).enumerable; })), t.push.apply(t, o); } return t; }
function _objectSpread(e) { for (var r = 1; r < arguments.length; r++) { var t = null != arguments[r] ? arguments[r] : {}; r % 2 ? ownKeys(Object(t), !0).forEach(function (r) { _defineProperty(e, r, t[r]); }) : Object.getOwnPropertyDescriptors ? Object.defineProperties(e, Object.getOwnPropertyDescriptors(t)) : ownKeys(Object(t)).forEach(function (r) { Object.defineProperty(e, r, Object.getOwnPropertyDescriptor(t, r)); }); } return e; }
function _defineProperty(obj, key, value) { key = _toPropertyKey(key); if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; }
function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, _toPropertyKey(descriptor.key), descriptor); } }
function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); Object.defineProperty(Constructor, "prototype", { writable: false }); return Constructor; }
function _toPropertyKey(t) { var i = _toPrimitive(t, "string"); return "symbol" == _typeof(i) ? i : String(i); }
function _toPrimitive(t, r) { if ("object" != _typeof(t) || !t) return t; var e = t[Symbol.toPrimitive]; if (void 0 !== e) { var i = e.call(t, r || "default"); if ("object" != _typeof(i)) return i; throw new TypeError("@@toPrimitive must return a primitive value."); } return ("string" === r ? String : Number)(t); }
function _applyDecoratedDescriptor(target, property, decorators, descriptor, context) { var desc = {}; Object.keys(descriptor).forEach(function (key) { desc[key] = descriptor[key]; }); desc.enumerable = !!desc.enumerable; desc.configurable = !!desc.configurable; if ('value' in desc || desc.initializer) { desc.writable = true; } desc = decorators.slice().reverse().reduce(function (desc, decorator) { return decorator(target, property, desc) || desc; }, desc); if (context && desc.initializer !== void 0) { desc.value = desc.initializer ? desc.initializer.call(context) : void 0; desc.initializer = undefined; } if (desc.initializer === void 0) { Object.defineProperty(target, property, desc); desc = null; } return desc; }
import { Emitter } from '@difizen/mana-common';
import { singleton, inject, postConstruct } from '@difizen/mana-syringe';
import { Tree } from "./tree";
import { TreeSelectionService, SelectableTreeNode, TreeSelection } from "./tree-selection";
import { TreeSelectionState } from "./tree-selection-state";
export var TreeSelectionServiceImpl = (_dec = singleton({
contrib: TreeSelectionService
}), _dec2 = postConstruct(), _dec(_class = (_class2 = /*#__PURE__*/function () {
function TreeSelectionServiceImpl(tree) {
_classCallCheck(this, TreeSelectionServiceImpl);
this.onSelectionChangedEmitter = new Emitter();
this.tree = tree;
}
TreeSelectionServiceImpl = inject(Tree)(TreeSelectionServiceImpl, undefined, 0) || TreeSelectionServiceImpl;
_createClass(TreeSelectionServiceImpl, [{
key: "init",
value: function init() {
this.state = new TreeSelectionState(this.tree);
}
}, {
key: "dispose",
value: function dispose() {
this.onSelectionChangedEmitter.dispose();
}
}, {
key: "selectedNodes",
get: function get() {
return this.state.selection();
}
}, {
key: "onSelectionChanged",
get: function get() {
return this.onSelectionChangedEmitter.event;
}
}, {
key: "fireSelectionChanged",
value: function fireSelectionChanged() {
this.onSelectionChangedEmitter.fire(this.state.selection());
}
}, {
key: "addSelection",
value: function addSelection(selectionOrTreeNode) {
var selection = function (arg) {
var type = TreeSelection.SelectionType.DEFAULT;
if (TreeSelection.is(arg)) {
return _objectSpread({
type: type
}, arg);
}
return {
type: type,
node: arg
};
}(selectionOrTreeNode);
var node = this.validateNode(selection.node);
if (node === undefined) {
return;
}
Object.assign(selection, {
node: node
});
var newState = this.state.nextState(selection);
this.transiteTo(newState);
}
}, {
key: "transiteTo",
value: function transiteTo(newState) {
var oldNodes = this.state.selection();
var newNodes = newState.selection();
var toUnselect = this.difference(oldNodes, newNodes);
var toSelect = this.difference(newNodes, oldNodes);
this.unselect(toUnselect);
this.select(toSelect);
this.removeFocus(oldNodes, newNodes);
this.addFocus(newState.focus);
this.state = newState;
this.fireSelectionChanged();
}
}, {
key: "unselect",
value: function unselect(nodes) {
nodes.forEach(function (node) {
return node.selected = false;
});
}
}, {
key: "select",
value: function select(nodes) {
nodes.forEach(function (node) {
return node.selected = true;
});
}
}, {
key: "removeFocus",
value: function removeFocus() {
for (var _len = arguments.length, nodes = new Array(_len), _key = 0; _key < _len; _key++) {
nodes[_key] = arguments[_key];
}
nodes.forEach(function (node) {
return node.forEach(function (n) {
return n.focus = false;
});
});
}
}, {
key: "addFocus",
value: function addFocus(node) {
if (node) {
node.focus = true;
}
}
/**
* Returns an array of the difference of two arrays. The returned array contains all elements that are contained by
* `left` and not contained by `right`. `right` may also contain elements not present in `left`: these are simply ignored.
*/
}, {
key: "difference",
value: function difference(left, right) {
return left.filter(function (item) {
return right.indexOf(item) === -1;
});
}
/**
* Returns a reference to the argument if the node exists in the tree. Otherwise, `undefined`.
*/
}, {
key: "validateNode",
value: function validateNode(node) {
var result = this.tree.validateNode(node);
return SelectableTreeNode.is(result) ? result : undefined;
}
}, {
key: "storeState",
value: function storeState() {
return {
selectionStack: this.state.selectionStack.map(function (s) {
return {
focus: s.focus && s.focus.id || undefined,
node: s.node && s.node.id || undefined,
type: s.type
};
})
};
}
}, {
key: "restoreState",
value: function restoreState(state) {
var selectionStack = [];
var _iterator = _createForOfIteratorHelper(state['selectionStack']),
_step;
try {
for (_iterator.s(); !(_step = _iterator.n()).done;) {
var selection = _step.value;
var node = selection.node && this.tree.getNode(selection.node) || undefined;
if (!SelectableTreeNode.is(node)) {
break;
}
var focus = selection.focus && this.tree.getNode(selection.focus) || undefined;
selectionStack.push({
node: node,
focus: SelectableTreeNode.is(focus) && focus || undefined,
type: selection.type
});
}
} catch (err) {
_iterator.e(err);
} finally {
_iterator.f();
}
if (selectionStack.length) {
this.transiteTo(new TreeSelectionState(this.tree, selectionStack));
}
}
}]);
return TreeSelectionServiceImpl;
}(), (_applyDecoratedDescriptor(_class2.prototype, "init", [_dec2], Object.getOwnPropertyDescriptor(_class2.prototype, "init"), _class2.prototype)), _class2)) || _class);