{"version":3,"file":"cdk-layout.umd.js","sources":["cdk/layout.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 { Injectable, NgModule, NgZone } from '@angular/core';\nimport { Platform, PlatformModule } from '@angular/cdk/platform';\nimport { Subject } from 'rxjs/Subject';\nimport { RxChain, map, startWith, takeUntil } from '@angular/cdk/rxjs';\nimport { coerceArray } from '@angular/cdk/coercion';\nimport { combineLatest } from 'rxjs/observable/combineLatest';\nimport { fromEventPattern } from 'rxjs/observable/fromEventPattern';\n\n/**\n * Global registry for all dynamically-created, injected style tags.\n */\nvar styleElementForWebkitCompatibility = new Map();\n/**\n * A utility for calling matchMedia queries.\n */\nvar MediaMatcher = (function () {\n    /**\n     * @param {?} platform\n     */\n    function MediaMatcher(platform) {\n        this.platform = platform;\n        this._matchMedia = this.platform.isBrowser ?\n            // matchMedia is bound to the window scope intentionally as it is an illegal invocation to\n            // call it from a different scope.\n            window.matchMedia.bind(window) :\n            noopMatchMedia;\n    }\n    /**\n     * Confirms the layout engine will trigger for the selector query provided and returns the\n     * MediaQueryList for the query provided.\n     * @param {?} query\n     * @return {?}\n     */\n    MediaMatcher.prototype.matchMedia = function (query) {\n        if (this.platform.WEBKIT) {\n            createEmptyStyleRule(query);\n        }\n        return this._matchMedia(query);\n    };\n    MediaMatcher.decorators = [\n        { type: Injectable },\n    ];\n    /**\n     * @nocollapse\n     */\n    MediaMatcher.ctorParameters = function () { return [\n        { type: Platform, },\n    ]; };\n    return MediaMatcher;\n}());\n/**\n * For Webkit engines that only trigger the MediaQueryListListener when there is at least one CSS\n * selector for the respective media query.\n * @param {?} query\n * @return {?}\n */\nfunction createEmptyStyleRule(query) {\n    if (!styleElementForWebkitCompatibility.has(query)) {\n        try {\n            var /** @type {?} */ style = document.createElement('style');\n            style.setAttribute('type', 'text/css');\n            if (!style.sheet) {\n                var /** @type {?} */ cssText = \"@media \" + query + \" {.fx-query-test{ }}\";\n                style.appendChild(document.createTextNode(cssText));\n            }\n            document.getElementsByTagName('head')[0].appendChild(style);\n            // Store in private global registry\n            styleElementForWebkitCompatibility.set(query, style);\n        }\n        catch (e) {\n            console.error(e);\n        }\n    }\n}\n/**\n * No-op matchMedia replacement for non-browser platforms.\n * @param {?} query\n * @return {?}\n */\nfunction noopMatchMedia(query) {\n    return {\n        matches: query === 'all' || query === '',\n        media: query,\n        addListener: function () { },\n        removeListener: function () { }\n    };\n}\n\n/**\n * Utility for checking the matching state of \\@media queries.\n */\nvar BreakpointObserver = (function () {\n    /**\n     * @param {?} mediaMatcher\n     * @param {?} zone\n     */\n    function BreakpointObserver(mediaMatcher, zone) {\n        this.mediaMatcher = mediaMatcher;\n        this.zone = zone;\n        /**\n         * A map of all media queries currently being listened for.\n         */\n        this._queries = new Map();\n        /**\n         * A subject for all other observables to takeUntil based on.\n         */\n        this._destroySubject = new Subject();\n    }\n    /**\n     * Completes the active subject, signalling to all other observables to complete.\n     * @return {?}\n     */\n    BreakpointObserver.prototype.ngOnDestroy = function () {\n        this._destroySubject.next();\n        this._destroySubject.complete();\n    };\n    /**\n     * Whether the query currently is matched.\n     * @param {?} value\n     * @return {?}\n     */\n    BreakpointObserver.prototype.isMatched = function (value) {\n        var _this = this;\n        var /** @type {?} */ queries = coerceArray(value);\n        return queries.some(function (mediaQuery) { return _this._registerQuery(mediaQuery).mql.matches; });\n    };\n    /**\n     * Gets an observable of results for the given queries that will emit new results for any changes\n     * in matching of the given queries.\n     * @param {?} value\n     * @return {?}\n     */\n    BreakpointObserver.prototype.observe = function (value) {\n        var _this = this;\n        var /** @type {?} */ queries = coerceArray(value);\n        var /** @type {?} */ observables = queries.map(function (query) { return _this._registerQuery(query).observable; });\n        return combineLatest(observables, function (a, b) {\n            return {\n                matches: !!((a && a.matches) || (b && b.matches)),\n            };\n        });\n    };\n    /**\n     * Registers a specific query to be listened for.\n     * @param {?} query\n     * @return {?}\n     */\n    BreakpointObserver.prototype._registerQuery = function (query) {\n        var _this = this;\n        // Only set up a new MediaQueryList if it is not already being listened for.\n        if (this._queries.has(query)) {\n            return ((this._queries.get(query)));\n        }\n        var /** @type {?} */ mql = this.mediaMatcher.matchMedia(query);\n        // Create callback for match changes and add it is as a listener.\n        var /** @type {?} */ queryObservable = RxChain.from(fromEventPattern(\n        // Listener callback methods are wrapped to be placed back in ngZone. Callbacks must be placed\n        // back into the zone because matchMedia is only included in Zone.js by loading the\n        // webapis-media-query.js file alongside the zone.js file.  Additionally, some browsers do not\n        // have MediaQueryList inherit from EventTarget, which causes inconsistencies in how Zone.js\n        // patches it.\n        function (listener) {\n            mql.addListener(function (e) { return _this.zone.run(function () { return listener(e); }); });\n        }, function (listener) {\n            mql.removeListener(function (e) { return _this.zone.run(function () { return listener(e); }); });\n        }))\n            .call(takeUntil, this._destroySubject)\n            .call(startWith, mql)\n            .call(map, function (nextMql) { return ({ matches: nextMql.matches }); })\n            .result();\n        // Add the MediaQueryList to the set of queries.\n        var /** @type {?} */ output = { observable: queryObservable, mql: mql };\n        this._queries.set(query, output);\n        return output;\n    };\n    BreakpointObserver.decorators = [\n        { type: Injectable },\n    ];\n    /**\n     * @nocollapse\n     */\n    BreakpointObserver.ctorParameters = function () { return [\n        { type: MediaMatcher, },\n        { type: NgZone, },\n    ]; };\n    return BreakpointObserver;\n}());\n\n// PascalCase is being used as Breakpoints is used like an enum.\n// tslint:disable-next-line:variable-name\nvar Breakpoints = {\n    Handset: '(max-width: 599px) and (orientation: portrait), ' +\n        '(max-width: 959px) and (orientation: landscape)',\n    Tablet: '(min-width: 600px) and (max-width: 839px) and (orientation: portrait), ' +\n        '(min-width: 960px) and (max-width: 1279px) and (orientation: landscape)',\n    Web: '(min-width: 840px) and (orientation: portrait), ' +\n        '(min-width: 1280px) and (orientation: landscape)',\n    HandsetPortrait: '(max-width: 599px) and (orientation: portrait)',\n    TabletPortrait: '(min-width: 600px) and (max-width: 839px) and (orientation: portrait)',\n    WebPortrait: '(min-width: 840px) and (orientation: portrait)',\n    HandsetLandscape: '(max-width: 959px) and (orientation: landscape)',\n    TabletLandscape: '(min-width: 960px) and (max-width: 1279px) and (orientation: landscape)',\n    WebLandscape: '(min-width: 1280px) and (orientation: landscape)',\n};\n\nvar LayoutModule = (function () {\n    function LayoutModule() {\n    }\n    LayoutModule.decorators = [\n        { type: NgModule, args: [{\n                    providers: [BreakpointObserver, MediaMatcher],\n                    imports: [PlatformModule],\n                },] },\n    ];\n    /**\n     * @nocollapse\n     */\n    LayoutModule.ctorParameters = function () { return []; };\n    return LayoutModule;\n}());\n\n/**\n * Generated bundle index. 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