@rxx/core
Version:
React MVI micro framework.
112 lines • 8.57 kB
JavaScript
"use strict";
/**
* @fileoverview
* @author Taketoshi Aono
*/
Object.defineProperty(exports, "__esModule", { value: true });
var tslib_1 = require("tslib");
var rxjs_1 = require("rxjs");
var operators_1 = require("rxjs/operators");
var MAX_HISTORY_LENGTH = 10;
var SubjectTree = /** @class */ (function () {
function SubjectTree(devTools, parent) {
this.devTools = devTools;
this.parent = parent;
this.children = [];
this.subject = new rxjs_1.Subject();
this.state = { view: {} };
this.preservation = [];
this.shouldImmediateDispatch = true;
this.lastDispatched = null;
this.histories = [];
this.devtoolsEnabled = true;
this.parent && this.parent.addChild(this);
}
SubjectTree.prototype.setState = function (state) {
this.state = state;
};
SubjectTree.prototype.addChild = function (subjectTree) {
this.children.push(subjectTree);
};
SubjectTree.prototype.notify = function (payload) {
this.shouldImmediateDispatch = false;
if (payload.type === 'RETRY') {
var target = payload.payload
? this.findHistory(payload.payload)
: this.histories[this.histories.length - 1];
if (target) {
this.doNotify(target);
}
return;
}
this.doNotify(this.createSubjectPayload(payload));
};
SubjectTree.prototype.prepare = function (parent) {
this.parent = parent;
};
Object.defineProperty(SubjectTree.prototype, "observable", {
get: function () {
return this.subject.pipe(operators_1.share());
},
enumerable: true,
configurable: true
});
SubjectTree.prototype.getLastDispatched = function () {
return this.lastDispatched;
};
SubjectTree.prototype.suspendDevtools = function () {
this.devtoolsEnabled = false;
};
SubjectTree.prototype.resumeDevtools = function () {
this.devtoolsEnabled = true;
};
SubjectTree.prototype.doNotify = function (payload) {
var _this = this;
if (this.devtoolsEnabled) {
var args = { type: payload.type, payload: payload.payload };
this.devTools.send(args, tslib_1.__assign({}, this.state.view, { __payload__: args }));
}
this.histories.push(payload);
if (this.histories.length >= MAX_HISTORY_LENGTH) {
this.histories.shift();
}
this.lastDispatched = payload;
this.subject.next(payload);
this.children.forEach(function (child) {
return child.notify({ type: payload.type, payload: payload.payload });
});
if (this.preservation.length) {
var preservations = this.preservation.slice();
this.preservation.length = 0;
preservations.forEach(function (preserved) { return _this.notify(preserved); });
}
this.shouldImmediateDispatch = true;
};
SubjectTree.prototype.findHistory = function (retryKey) {
var history = this.histories.filter(function (_a) {
var type = _a.type;
return type === retryKey;
})[0] || null;
if (!history && this.children.length) {
this.children.some(function (child) {
history = child.findHistory(retryKey);
return !!history;
});
}
return history;
};
SubjectTree.prototype.createSubjectPayload = function (payload) {
var _this = this;
return tslib_1.__assign({}, payload, { states: this.state.view, dispatch: function (type, payload) {
if (_this.shouldImmediateDispatch) {
_this.notify({ type: type, payload: payload });
}
else {
_this.preservation.push({ type: type, payload: payload });
}
} });
};
return SubjectTree;
}());
exports.SubjectTree = SubjectTree;
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