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@aruntk
aruntk committed May 3, 2017
1 parent 0f22be4 commit 00bcbd0
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1 change: 1 addition & 0 deletions .gitignore
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node_modules
267 changes: 1 addition & 266 deletions mwc-mixin.html
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<script>
'use strict';

var _createClass = 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, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();

var _get = function get(object, property, receiver) { if (object === null) object = Function.prototype; var desc = Object.getOwnPropertyDescriptor(object, property); if (desc === undefined) { var parent = Object.getPrototypeOf(object); if (parent === null) { return undefined; } else { return get(parent, property, receiver); } } else if ("value" in desc) { return desc.value; } else { var getter = desc.get; if (getter === undefined) { return undefined; } return getter.call(receiver); } };

var _tracker2 = require('meteor/tracker');

var _underscore = require('meteor/underscore');

var _ejson = require('meteor/ejson');

var _random = require('meteor/random');

function _toConsumableArray(arr) { if (Array.isArray(arr)) { for (var i = 0, arr2 = Array(arr.length); i < arr.length; i++) { arr2[i] = arr[i]; } return arr2; } else { return Array.from(arr); } }

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }

function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; }

var mwcDataUpdate = function mwcDataUpdate(element) {
var el = element;
var data = element.getMeteorData();

if (!data) {
return;
}

if (el.__mwcFirstRun) {
el.__mwcFirstRun = false;
el._mwcSetData(data);
return;
}

_tracker2.Tracker.afterFlush(function () {
el._mwcSetData(data);
});
};

MwcMixin = function MwcMixin(parent) {
return function (_parent) {
_inherits(_class, _parent);

function _class() {
_classCallCheck(this, _class);

var _this = _possibleConstructorReturn(this, (_class.__proto__ || Object.getPrototypeOf(_class)).call(this));

var mwcDeps = {};
var trackers = _this.trackers || [];

var _loop = function _loop(i) {
var tracker = trackers[i];
var sections = tracker.split(/[()]+/);
var input = sections[1];
var cb = sections[0];
var rId = '__mwc_' + _random.Random.id(10);
var obj = {
_id: rId,
cb: cb
};
var dep = new _tracker2.Tracker.Dependency();
var _trObFn = function _trObFn() {
// eslint-disable-line func-names
var _obj = obj;

for (var _len = arguments.length, args = Array(_len), _key = 0; _key < _len; _key++) {
args[_key] = arguments[_key];
}

_obj.args = args;
this.__mwcDeps[tracker] = _obj;
this.__mwcDeps[tracker] = _underscore._.clone(this.__mwcDeps[tracker]);
this.__mwcDeps = _underscore._.clone(this.__mwcDeps);
dep.changed();
};
var obFn = function obFn() {
// eslint-disable-line func-names
var _obj = this.__mwcDeps[tracker];
var args = _obj.args || [];
dep.depend();
this[_obj.cb].apply(this, _toConsumableArray(args));
};
obj.obFn = obFn;
mwcDeps[tracker] = obj;

_this[rId] = _trObFn;
_this._createMethodObserver(rId + '(' + input + ')');
};

for (var i = 0; i < trackers.length; i += 1) {
_loop(i);
}
_this.__mwcDeps = mwcDeps;
return _this;
}

_createClass(_class, [{
key: '_mwcSetData',
value: function _mwcSetData(data) {
this.set('mwcData', data);
}
}, {
key: 'connectedCallback',
value: function connectedCallback() {
_get(_class.prototype.__proto__ || Object.getPrototypeOf(_class.prototype), 'connectedCallback', this).call(this);
this.__mwcFirstRun = true;
var _iteratorNormalCompletion = true;
var _didIteratorError = false;
var _iteratorError = undefined;

try {
for (var _iterator = Object.keys(this.__mwcDeps)[Symbol.iterator](), _step; !(_iteratorNormalCompletion = (_step = _iterator.next()).done); _iteratorNormalCompletion = true) {
var _tracker = _step.value;

var _obj = this.__mwcDeps[_tracker];
this.autorun(_obj.obFn.bind(this));
}
} catch (err) {
_didIteratorError = true;
_iteratorError = err;
} finally {
try {
if (!_iteratorNormalCompletion && _iterator.return) {
_iterator.return();
}
} finally {
if (_didIteratorError) {
throw _iteratorError;
}
}
}

this.autorun(this.tracker);
this.autorun(mwcDataUpdate.bind(null, this));
}
}, {
key: 'disconnectedCallback',
value: function disconnectedCallback() {
_get(_class.prototype.__proto__ || Object.getPrototypeOf(_class.prototype), 'disconnectedCallback', this).call(this);
_underscore._.each(this.__mwcComputations, function (c) {
c.stop();
});
this.__mwcComputations = [];
this.__mwcHandles.forEach(function (h) {
h.stop();
});
this.__mwcBin.forEach(function (h) {
h.stop();
});
}
}, {
key: '_mwcPush',
value: function _mwcPush(p, val) {
var prop = _underscore._.clone(this[p]);
prop.push(val);
this.set(p, prop);
}
}, {
key: 'guard',
value: function guard(f) {
if (Meteor.isServer || !_tracker2.Tracker.currentComputation) {
return f();
}

var dep = new _tracker2.Tracker.Dependency();
dep.depend();

var value = void 0;
var newValue = void 0;
_tracker2.Tracker.autorun(function (comp) {
newValue = f();
if (!comp.firstRun && !_ejson.EJSON.equals(newValue, value)) {
dep.changed();
}
value = _ejson.EJSON.clone(newValue);
});
return newValue;
}
}, {
key: 'autorun',
value: function autorun(f) {
var _this2 = this;

var cb = function cb(c) {
if (!_underscore._.find(_this2.__mwcComputationsIds, function (_id) {
return _id === c._id;
})) {
_this2._mwcPush('__mwcComputationsIds', c._id);
_this2._mwcPush('__mwcComputations', c);
}
f.bind(_this2)(c);
};
return _tracker2.Tracker.autorun(cb.bind(this));
}
}, {
key: '_removeSubs',
value: function _removeSubs(val) {
var handles = _underscore._.reject(_underscore._.clone(this.__mwcHandles), function (h) {
if (h.subscriptionId === val.subscriptionId) {
return true;
}
return false;
});
this._mwcPush('__mwcBin', val);
this.set('__mwcHandles', handles);
}
}, {
key: 'subscribe',
value: function subscribe() {
var _this3 = this;

for (var _len2 = arguments.length, args = Array(_len2), _key2 = 0; _key2 < _len2; _key2++) {
args[_key2] = arguments[_key2];
}

var handle = Meteor.subscribe.apply(null, args);
this._mwcPush('__mwcHandles', handle);
this._subsReady();
var afterSub = function afterSub(c) {
if (handle.ready()) {
_this3._removeSubs(handle);
_this3._subsReady();
c.stop();
}
};
this.autorun(afterSub.bind(this));
return handle;
}
}, {
key: '_subsReady',
value: function _subsReady() {
var isReady = _underscore._.every(this.__mwcHandles, function (sub) {
return sub && sub.ready();
});
this.set('subsReady', isReady);
return isReady;
}
}, {
key: 'getMeteorData',
value: function getMeteorData() {}
}, {
key: 'tracker',
value: function tracker() {}
}], [{
key: 'properties',
get: function get() {
return {
subsReady: { type: Boolean, notify: true, value: true },
mwcData: Object,
__mwcHandles: { type: Array, value: [] },
__mwcPush: { type: Array, value: [] },
__mwcComputations: { type: Array, value: [] },
__mwcComputationsIds: { type: Array, value: [] },
__mwcBin: { type: Array, value: [] }
};
}
}]);

return _class;
}(parent);
};
</script>
<script src="dist/mwc-mixin.js"></script>
37 changes: 37 additions & 0 deletions package.json
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{
"name": "mwc-mixin",
"version": "2.0.0-beta",
"description": "Meteor Polymer Data Mixin",
"main": "src/mwc-mixin.js",
"scripts": {
"compile": "babel --presets es2015 -d dist/ src/",
"pack": "npm run compile && npm run meteor_publish",
"meteor_publish": "meteor publish && git add -A && git commit -m 'versions' && git push",
"test": "echo \"Error: no test specified\" && exit 1"
},
"repository": {
"type": "git",
"url": "git+https://github.com/meteorwebcomponents/mixin.git"
},
"devDependencies": {
"babel-cli": "^6.18.0",
"babel-preset-es2015": "^6.18.0",
"xo": "^0.17.0"
},
"keywords": [
"meteor",
"polymer",
"mixin",
"webcomponents",
"data"
],
"author": "Arun Kumar T K (@aruntk)",
"license": "MIT",
"bugs": {
"url": "https://github.com/meteorwebcomponents/mixin/issues"
},
"homepage": "https://github.com/meteorwebcomponents/mixin#readme",
"xo": {
"space": true
}
}
0 mwc-mixin.js → src/mwc-mixin.js
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