{"version":3,"file":"cdk-collections.umd.js","sources":["cdk/collections.es5.js"],"sourcesContent":["/**\n * @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\nimport { Subject } from 'rxjs/Subject';\nimport { Injectable, Optional, SkipSelf } from '@angular/core';\n\n/**\n * @abstract\n */\nvar DataSource = (function () {\n    function DataSource() {\n    }\n    /**\n     * Connects a collection viewer (such as a data-table) to this data source. Note that\n     * the stream provided will be accessed during change detection and should not directly change\n     * values that are bound in template views.\n     * @abstract\n     * @param {?} collectionViewer The component that exposes a view over the data provided by this\n     *     data source.\n     * @return {?} Observable that emits a new value when the data changes.\n     */\n    DataSource.prototype.connect = function (collectionViewer) { };\n    /**\n     * Disconnects a collection viewer (such as a data-table) from this data source. Can be used\n     * to perform any clean-up or tear-down operations when a view is being destroyed.\n     *\n     * @abstract\n     * @param {?} collectionViewer The component that exposes a view over the data provided by this\n     *     data source.\n     * @return {?}\n     */\n    DataSource.prototype.disconnect = function (collectionViewer) { };\n    return DataSource;\n}());\n\n/**\n * Class to be used to power selecting one or more options from a list.\n */\nvar SelectionModel = (function () {\n    /**\n     * @param {?=} _isMulti\n     * @param {?=} initiallySelectedValues\n     * @param {?=} _emitChanges\n     */\n    function SelectionModel(_isMulti, initiallySelectedValues, _emitChanges) {\n        if (_isMulti === void 0) { _isMulti = false; }\n        if (_emitChanges === void 0) { _emitChanges = true; }\n        var _this = this;\n        this._isMulti = _isMulti;\n        this._emitChanges = _emitChanges;\n        /**\n         * Currently-selected values.\n         */\n        this._selection = new Set();\n        /**\n         * Keeps track of the deselected options that haven't been emitted by the change event.\n         */\n        this._deselectedToEmit = [];\n        /**\n         * Keeps track of the selected option that haven't been emitted by the change event.\n         */\n        this._selectedToEmit = [];\n        /**\n         * Event emitted when the value has changed.\n         */\n        this.onChange = this._emitChanges ? new Subject() : null;\n        if (initiallySelectedValues) {\n            if (_isMulti) {\n                initiallySelectedValues.forEach(function (value) { return _this._markSelected(value); });\n            }\n            else {\n                this._markSelected(initiallySelectedValues[0]);\n            }\n            // Clear the array in order to avoid firing the change event for preselected values.\n            this._selectedToEmit.length = 0;\n        }\n    }\n    Object.defineProperty(SelectionModel.prototype, \"selected\", {\n        /**\n         * Selected value(s).\n         * @return {?}\n         */\n        get: function () {\n            if (!this._selected) {\n                this._selected = Array.from(this._selection.values());\n            }\n            return this._selected;\n        },\n        enumerable: true,\n        configurable: true\n    });\n    /**\n     * Selects a value or an array of values.\n     * @param {...?} values\n     * @return {?}\n     */\n    SelectionModel.prototype.select = function () {\n        var _this = this;\n        var values = [];\n        for (var _i = 0; _i < arguments.length; _i++) {\n            values[_i] = arguments[_i];\n        }\n        this._verifyValueAssignment(values);\n        values.forEach(function (value) { return _this._markSelected(value); });\n        this._emitChangeEvent();\n    };\n    /**\n     * Deselects a value or an array of values.\n     * @param {...?} values\n     * @return {?}\n     */\n    SelectionModel.prototype.deselect = function () {\n        var _this = this;\n        var values = [];\n        for (var _i = 0; _i < arguments.length; _i++) {\n            values[_i] = arguments[_i];\n        }\n        this._verifyValueAssignment(values);\n        values.forEach(function (value) { return _this._unmarkSelected(value); });\n        this._emitChangeEvent();\n    };\n    /**\n     * Toggles a value between selected and deselected.\n     * @param {?} value\n     * @return {?}\n     */\n    SelectionModel.prototype.toggle = function (value) {\n        this.isSelected(value) ? this.deselect(value) : this.select(value);\n    };\n    /**\n     * Clears all of the selected values.\n     * @return {?}\n     */\n    SelectionModel.prototype.clear = function () {\n        this._unmarkAll();\n        this._emitChangeEvent();\n    };\n    /**\n     * Determines whether a value is selected.\n     * @param {?} value\n     * @return {?}\n     */\n    SelectionModel.prototype.isSelected = function (value) {\n        return this._selection.has(value);\n    };\n    /**\n     * Determines whether the model does not have a value.\n     * @return {?}\n     */\n    SelectionModel.prototype.isEmpty = function () {\n        return this._selection.size === 0;\n    };\n    /**\n     * Determines whether the model has a value.\n     * @return {?}\n     */\n    SelectionModel.prototype.hasValue = function () {\n        return !this.isEmpty();\n    };\n    /**\n     * Sorts the selected values based on a predicate function.\n     * @param {?=} predicate\n     * @return {?}\n     */\n    SelectionModel.prototype.sort = function (predicate) {\n        if (this._isMulti && this._selected) {\n            this._selected.sort(predicate);\n        }\n    };\n    /**\n     * Emits a change event and clears the records of selected and deselected values.\n     * @return {?}\n     */\n    SelectionModel.prototype._emitChangeEvent = function () {\n        if (this._selectedToEmit.length || this._deselectedToEmit.length) {\n            var /** @type {?} */ eventData = new SelectionChange(this._selectedToEmit, this._deselectedToEmit);\n            if (this.onChange) {\n                this.onChange.next(eventData);\n            }\n            this._deselectedToEmit = [];\n            this._selectedToEmit = [];\n        }\n        this._selected = null;\n    };\n    /**\n     * Selects a value.\n     * @param {?} value\n     * @return {?}\n     */\n    SelectionModel.prototype._markSelected = function (value) {\n        if (!this.isSelected(value)) {\n            if (!this._isMulti) {\n                this._unmarkAll();\n            }\n            this._selection.add(value);\n            if (this._emitChanges) {\n                this._selectedToEmit.push(value);\n            }\n        }\n    };\n    /**\n     * Deselects a value.\n     * @param {?} value\n     * @return {?}\n     */\n    SelectionModel.prototype._unmarkSelected = function (value) {\n        if (this.isSelected(value)) {\n            this._selection.delete(value);\n            if (this._emitChanges) {\n                this._deselectedToEmit.push(value);\n            }\n        }\n    };\n    /**\n     * Clears out the selected values.\n     * @return {?}\n     */\n    SelectionModel.prototype._unmarkAll = function () {\n        var _this = this;\n        if (!this.isEmpty()) {\n            this._selection.forEach(function (value) { return _this._unmarkSelected(value); });\n        }\n    };\n    /**\n     * Verifies the value assignment and throws an error if the specified value array is\n     * including multiple values while the selection model is not supporting multiple values.\n     * @param {?} values\n     * @return {?}\n     */\n    SelectionModel.prototype._verifyValueAssignment = function (values) {\n        if (values.length > 1 && !this._isMulti) {\n            throw getMultipleValuesInSingleSelectionError();\n        }\n    };\n    return SelectionModel;\n}());\n/**\n * Describes an event emitted when the value of a MatSelectionModel has changed.\n * \\@docs-private\n */\nvar SelectionChange = (function () {\n    /**\n     * @param {?=} added\n     * @param {?=} removed\n     */\n    function SelectionChange(added, removed) {\n        this.added = added;\n        this.removed = removed;\n    }\n    return SelectionChange;\n}());\n/**\n * Returns an error that reports that multiple values are passed into a selection model\n * with a single value.\n * @return {?}\n */\nfunction getMultipleValuesInSingleSelectionError() {\n    return Error('Cannot pass multiple values into SelectionModel with single-value mode.');\n}\n\n/**\n * Class to coordinate unique selection based on name.\n * Intended to be consumed as an Angular service.\n * This service is needed because native radio change events are only fired on the item currently\n * being selected, and we still need to uncheck the previous selection.\n *\n * This service does not *store* any IDs and names because they may change at any time, so it is\n * less error-prone if they are simply passed through when the events occur.\n */\nvar UniqueSelectionDispatcher = (function () {\n    function UniqueSelectionDispatcher() {\n        this._listeners = [];\n    }\n    /**\n     * Notify other items that selection for the given name has been set.\n     * @param {?} id ID of the item.\n     * @param {?} name Name of the item.\n     * @return {?}\n     */\n    UniqueSelectionDispatcher.prototype.notify = function (id, name) {\n        for (var _i = 0, _a = this._listeners; _i < _a.length; _i++) {\n            var listener = _a[_i];\n            listener(id, name);\n        }\n    };\n    /**\n     * Listen for future changes to item selection.\n     * @param {?} listener\n     * @return {?} Function used to deregister listener\n     */\n    UniqueSelectionDispatcher.prototype.listen = function (listener) {\n        var _this = this;\n        this._listeners.push(listener);\n        return function () {\n            _this._listeners = _this._listeners.filter(function (registered) {\n                return listener !== registered;\n            });\n        };\n    };\n    UniqueSelectionDispatcher.decorators = [\n        { type: Injectable },\n    ];\n    /**\n     * @nocollapse\n     */\n    UniqueSelectionDispatcher.ctorParameters = function () { return []; };\n    return UniqueSelectionDispatcher;\n}());\n/**\n * \\@docs-private\n * @param {?} parentDispatcher\n * @return {?}\n */\nfunction UNIQUE_SELECTION_DISPATCHER_PROVIDER_FACTORY(parentDispatcher) {\n    return parentDispatcher || new UniqueSelectionDispatcher();\n}\n/**\n * \\@docs-private\n */\nvar UNIQUE_SELECTION_DISPATCHER_PROVIDER = {\n    // If there is already a dispatcher available, use that. Otherwise, provide a new one.\n    provide: UniqueSelectionDispatcher,\n    deps: [[new Optional(), new SkipSelf(), UniqueSelectionDispatcher]],\n    useFactory: UNIQUE_SELECTION_DISPATCHER_PROVIDER_FACTORY\n};\n\n/**\n * Generated bundle index. Do not edit.\n */\n\nexport { UniqueSelectionDispatcher, UNIQUE_SELECTION_DISPATCHER_PROVIDER, DataSource, SelectionModel, SelectionChange, getMultipleValuesInSingleSelectionError, UNIQUE_SELECTION_DISPATCHER_PROVIDER_FACTORY as ɵa };\n//# 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