@angular/material
Version:
Angular Material
991 lines (958 loc) • 114 kB
JavaScript
(function (global, factory) {
typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports, require('@angular/cdk/a11y'), require('@angular/cdk/observers'), require('@angular/cdk/portal'), require('@angular/common'), require('@angular/core'), require('@angular/material/core'), require('@angular/platform-browser/animations'), require('rxjs'), require('@angular/cdk/bidi'), require('@angular/animations'), require('rxjs/operators'), require('@angular/cdk/coercion'), require('@angular/cdk/scrolling'), require('@angular/cdk/platform'), require('@angular/cdk/keycodes')) :
typeof define === 'function' && define.amd ? define('@angular/material/tabs', ['exports', '@angular/cdk/a11y', '@angular/cdk/observers', '@angular/cdk/portal', '@angular/common', '@angular/core', '@angular/material/core', '@angular/platform-browser/animations', 'rxjs', '@angular/cdk/bidi', '@angular/animations', 'rxjs/operators', '@angular/cdk/coercion', '@angular/cdk/scrolling', '@angular/cdk/platform', '@angular/cdk/keycodes'], factory) :
(global = global || self, factory((global.ng = global.ng || {}, global.ng.material = global.ng.material || {}, global.ng.material.tabs = {}), global.ng.cdk.a11y, global.ng.cdk.observers, global.ng.cdk.portal, global.ng.common, global.ng.core, global.ng.material.core, global.ng.platformBrowser.animations, global.rxjs, global.ng.cdk.bidi, global.ng.animations, global.rxjs.operators, global.ng.cdk.coercion, global.ng.cdk.scrolling, global.ng.cdk.platform, global.ng.cdk.keycodes));
}(this, (function (exports, a11y, observers, portal, common, core, core$1, animations, rxjs, bidi, animations$1, operators, coercion, scrolling, platform, keycodes) { 'use strict';
/**
* @license
* Copyright Google LLC All Rights Reserved.
*
* Use of this source code is governed by an MIT-style license that can be
* found in the LICENSE file at https://angular.io/license
*/
/** Injection token for the MatInkBar's Positioner. */
var _MAT_INK_BAR_POSITIONER = new core.InjectionToken('MatInkBarPositioner', {
providedIn: 'root',
factory: _MAT_INK_BAR_POSITIONER_FACTORY
});
/**
* The default positioner function for the MatInkBar.
* @docs-private
*/
function _MAT_INK_BAR_POSITIONER_FACTORY() {
var method = function (element) { return ({
left: element ? (element.offsetLeft || 0) + 'px' : '0',
width: element ? (element.offsetWidth || 0) + 'px' : '0',
}); };
return method;
}
/**
* The ink-bar is used to display and animate the line underneath the current active tab label.
* @docs-private
*/
var MatInkBar = /** @class */ (function () {
function MatInkBar(_elementRef, _ngZone, _inkBarPositioner, _animationMode) {
this._elementRef = _elementRef;
this._ngZone = _ngZone;
this._inkBarPositioner = _inkBarPositioner;
this._animationMode = _animationMode;
}
/**
* Calculates the styles from the provided element in order to align the ink-bar to that element.
* Shows the ink bar if previously set as hidden.
* @param element
*/
MatInkBar.prototype.alignToElement = function (element) {
var _this = this;
this.show();
if (typeof requestAnimationFrame !== 'undefined') {
this._ngZone.runOutsideAngular(function () {
requestAnimationFrame(function () { return _this._setStyles(element); });
});
}
else {
this._setStyles(element);
}
};
/** Shows the ink bar. */
MatInkBar.prototype.show = function () {
this._elementRef.nativeElement.style.visibility = 'visible';
};
/** Hides the ink bar. */
MatInkBar.prototype.hide = function () {
this._elementRef.nativeElement.style.visibility = 'hidden';
};
/**
* Sets the proper styles to the ink bar element.
* @param element
*/
MatInkBar.prototype._setStyles = function (element) {
var positions = this._inkBarPositioner(element);
var inkBar = this._elementRef.nativeElement;
inkBar.style.left = positions.left;
inkBar.style.width = positions.width;
};
MatInkBar.decorators = [
{ type: core.Directive, args: [{
selector: 'mat-ink-bar',
host: {
'class': 'mat-ink-bar',
'[class._mat-animation-noopable]': "_animationMode === 'NoopAnimations'",
},
},] }
];
/** @nocollapse */
MatInkBar.ctorParameters = function () { return [
{ type: core.ElementRef },
{ type: core.NgZone },
{ type: undefined, decorators: [{ type: core.Inject, args: [_MAT_INK_BAR_POSITIONER,] }] },
{ type: String, decorators: [{ type: core.Optional }, { type: core.Inject, args: [animations.ANIMATION_MODULE_TYPE,] }] }
]; };
return MatInkBar;
}());
/*! *****************************************************************************
Copyright (c) Microsoft Corporation. All rights reserved.
Licensed under the Apache License, Version 2.0 (the "License"); you may not use
this file except in compliance with the License. You may obtain a copy of the
License at http://www.apache.org/licenses/LICENSE-2.0
THIS CODE IS PROVIDED ON AN *AS IS* BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
KIND, EITHER EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION ANY IMPLIED
WARRANTIES OR CONDITIONS OF TITLE, FITNESS FOR A PARTICULAR PURPOSE,
MERCHANTABLITY OR NON-INFRINGEMENT.
See the Apache Version 2.0 License for specific language governing permissions
and limitations under the License.
***************************************************************************** */
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/**
* @license
* Copyright Google LLC All Rights Reserved.
*
* Use of this source code is governed by an MIT-style license that can be
* found in the LICENSE file at https://angular.io/license
*/
/** Decorates the `ng-template` tags and reads out the template from it. */
var MatTabContent = /** @class */ (function () {
function MatTabContent(template) {
this.template = template;
}
MatTabContent.decorators = [
{ type: core.Directive, args: [{ selector: '[matTabContent]' },] }
];
/** @nocollapse */
MatTabContent.ctorParameters = function () { return [
{ type: core.TemplateRef }
]; };
return MatTabContent;
}());
/**
* @license
* Copyright Google LLC All Rights Reserved.
*
* Use of this source code is governed by an MIT-style license that can be
* found in the LICENSE file at https://angular.io/license
*/
/** Used to flag tab labels for use with the portal directive */
var MatTabLabel = /** @class */ (function (_super) {
__extends(MatTabLabel, _super);
function MatTabLabel() {
return _super !== null && _super.apply(this, arguments) || this;
}
MatTabLabel.decorators = [
{ type: core.Directive, args: [{
selector: '[mat-tab-label], [matTabLabel]',
},] }
];
return MatTabLabel;
}(portal.CdkPortal));
/**
* @license
* Copyright Google LLC All Rights Reserved.
*
* Use of this source code is governed by an MIT-style license that can be
* found in the LICENSE file at https://angular.io/license
*/
// Boilerplate for applying mixins to MatTab.
/** @docs-private */
var MatTabBase = /** @class */ (function () {
function MatTabBase() {
}
return MatTabBase;
}());
var _MatTabMixinBase = core$1.mixinDisabled(MatTabBase);
/**
* Used to provide a tab group to a tab without causing a circular dependency.
* @docs-private
*/
var MAT_TAB_GROUP = new core.InjectionToken('MAT_TAB_GROUP');
var MatTab = /** @class */ (function (_super) {
__extends(MatTab, _super);
function MatTab(_viewContainerRef,
/**
* @deprecated `_closestTabGroup` parameter to become required.
* @breaking-change 10.0.0
*/
_closestTabGroup) {
var _this = _super.call(this) || this;
_this._viewContainerRef = _viewContainerRef;
_this._closestTabGroup = _closestTabGroup;
/** Plain text label for the tab, used when there is no template label. */
_this.textLabel = '';
/** Portal that will be the hosted content of the tab */
_this._contentPortal = null;
/** Emits whenever the internal state of the tab changes. */
_this._stateChanges = new rxjs.Subject();
/**
* The relatively indexed position where 0 represents the center, negative is left, and positive
* represents the right.
*/
_this.position = null;
/**
* The initial relatively index origin of the tab if it was created and selected after there
* was already a selected tab. Provides context of what position the tab should originate from.
*/
_this.origin = null;
/**
* Whether the tab is currently active.
*/
_this.isActive = false;
return _this;
}
Object.defineProperty(MatTab.prototype, "templateLabel", {
/** Content for the tab label given by `<ng-template mat-tab-label>`. */
get: function () { return this._templateLabel; },
set: function (value) {
// Only update the templateLabel via query if there is actually
// a MatTabLabel found. This works around an issue where a user may have
// manually set `templateLabel` during creation mode, which would then get clobbered
// by `undefined` when this query resolves.
if (value) {
this._templateLabel = value;
}
},
enumerable: true,
configurable: true
});
Object.defineProperty(MatTab.prototype, "content", {
/** @docs-private */
get: function () {
return this._contentPortal;
},
enumerable: true,
configurable: true
});
MatTab.prototype.ngOnChanges = function (changes) {
if (changes.hasOwnProperty('textLabel') || changes.hasOwnProperty('disabled')) {
this._stateChanges.next();
}
};
MatTab.prototype.ngOnDestroy = function () {
this._stateChanges.complete();
};
MatTab.prototype.ngOnInit = function () {
this._contentPortal = new portal.TemplatePortal(this._explicitContent || this._implicitContent, this._viewContainerRef);
};
MatTab.decorators = [
{ type: core.Component, args: [{
selector: 'mat-tab',
template: "<!-- Create a template for the content of the <mat-tab> so that we can grab a reference to this\n TemplateRef and use it in a Portal to render the tab content in the appropriate place in the\n tab-group. -->\n<ng-template><ng-content></ng-content></ng-template>\n",
inputs: ['disabled'],
// tslint:disable-next-line:validate-decorators
changeDetection: core.ChangeDetectionStrategy.Default,
encapsulation: core.ViewEncapsulation.None,
exportAs: 'matTab'
}] }
];
/** @nocollapse */
MatTab.ctorParameters = function () { return [
{ type: core.ViewContainerRef },
{ type: undefined, decorators: [{ type: core.Optional }, { type: core.Inject, args: [MAT_TAB_GROUP,] }] }
]; };
MatTab.propDecorators = {
templateLabel: [{ type: core.ContentChild, args: [MatTabLabel,] }],
_explicitContent: [{ type: core.ContentChild, args: [MatTabContent, { read: core.TemplateRef, static: true },] }],
_implicitContent: [{ type: core.ViewChild, args: [core.TemplateRef, { static: true },] }],
textLabel: [{ type: core.Input, args: ['label',] }],
ariaLabel: [{ type: core.Input, args: ['aria-label',] }],
ariaLabelledby: [{ type: core.Input, args: ['aria-labelledby',] }]
};
return MatTab;
}(_MatTabMixinBase));
/**
* @license
* Copyright Google LLC All Rights Reserved.
*
* Use of this source code is governed by an MIT-style license that can be
* found in the LICENSE file at https://angular.io/license
*/
/**
* Animations used by the Material tabs.
* @docs-private
*/
var matTabsAnimations = {
/** Animation translates a tab along the X axis. */
translateTab: animations$1.trigger('translateTab', [
// Note: transitions to `none` instead of 0, because some browsers might blur the content.
animations$1.state('center, void, left-origin-center, right-origin-center', animations$1.style({ transform: 'none' })),
// If the tab is either on the left or right, we additionally add a `min-height` of 1px
// in order to ensure that the element has a height before its state changes. This is
// necessary because Chrome does seem to skip the transition in RTL mode if the element does
// not have a static height and is not rendered. See related issue: #9465
animations$1.state('left', animations$1.style({ transform: 'translate3d(-100%, 0, 0)', minHeight: '1px' })),
animations$1.state('right', animations$1.style({ transform: 'translate3d(100%, 0, 0)', minHeight: '1px' })),
animations$1.transition('* => left, * => right, left => center, right => center', animations$1.animate('{{animationDuration}} cubic-bezier(0.35, 0, 0.25, 1)')),
animations$1.transition('void => left-origin-center', [
animations$1.style({ transform: 'translate3d(-100%, 0, 0)' }),
animations$1.animate('{{animationDuration}} cubic-bezier(0.35, 0, 0.25, 1)')
]),
animations$1.transition('void => right-origin-center', [
animations$1.style({ transform: 'translate3d(100%, 0, 0)' }),
animations$1.animate('{{animationDuration}} cubic-bezier(0.35, 0, 0.25, 1)')
])
])
};
/**
* @license
* Copyright Google LLC All Rights Reserved.
*
* Use of this source code is governed by an MIT-style license that can be
* found in the LICENSE file at https://angular.io/license
*/
/**
* The portal host directive for the contents of the tab.
* @docs-private
*/
var MatTabBodyPortal = /** @class */ (function (_super) {
__extends(MatTabBodyPortal, _super);
function MatTabBodyPortal(componentFactoryResolver, viewContainerRef, _host,
/**
* @deprecated `_document` parameter to be made required.
* @breaking-change 9.0.0
*/
_document) {
var _this = _super.call(this, componentFactoryResolver, viewContainerRef, _document) || this;
_this._host = _host;
/** Subscription to events for when the tab body begins centering. */
_this._centeringSub = rxjs.Subscription.EMPTY;
/** Subscription to events for when the tab body finishes leaving from center position. */
_this._leavingSub = rxjs.Subscription.EMPTY;
return _this;
}
/** Set initial visibility or set up subscription for changing visibility. */
MatTabBodyPortal.prototype.ngOnInit = function () {
var _this = this;
_super.prototype.ngOnInit.call(this);
this._centeringSub = this._host._beforeCentering
.pipe(operators.startWith(this._host._isCenterPosition(this._host._position)))
.subscribe(function (isCentering) {
if (isCentering && !_this.hasAttached()) {
_this.attach(_this._host._content);
}
});
this._leavingSub = this._host._afterLeavingCenter.subscribe(function () {
_this.detach();
});
};
/** Clean up centering subscription. */
MatTabBodyPortal.prototype.ngOnDestroy = function () {
_super.prototype.ngOnDestroy.call(this);
this._centeringSub.unsubscribe();
this._leavingSub.unsubscribe();
};
MatTabBodyPortal.decorators = [
{ type: core.Directive, args: [{
selector: '[matTabBodyHost]'
},] }
];
/** @nocollapse */
MatTabBodyPortal.ctorParameters = function () { return [
{ type: core.ComponentFactoryResolver },
{ type: core.ViewContainerRef },
{ type: MatTabBody, decorators: [{ type: core.Inject, args: [core.forwardRef(function () { return MatTabBody; }),] }] },
{ type: undefined, decorators: [{ type: core.Inject, args: [common.DOCUMENT,] }] }
]; };
return MatTabBodyPortal;
}(portal.CdkPortalOutlet));
/**
* Base class with all of the `MatTabBody` functionality.
* @docs-private
*/
var _MatTabBodyBase = /** @class */ (function () {
function _MatTabBodyBase(_elementRef, _dir, changeDetectorRef) {
var _this = this;
this._elementRef = _elementRef;
this._dir = _dir;
/** Subscription to the directionality change observable. */
this._dirChangeSubscription = rxjs.Subscription.EMPTY;
/** Emits when an animation on the tab is complete. */
this._translateTabComplete = new rxjs.Subject();
/** Event emitted when the tab begins to animate towards the center as the active tab. */
this._onCentering = new core.EventEmitter();
/** Event emitted before the centering of the tab begins. */
this._beforeCentering = new core.EventEmitter();
/** Event emitted before the centering of the tab begins. */
this._afterLeavingCenter = new core.EventEmitter();
/** Event emitted when the tab completes its animation towards the center. */
this._onCentered = new core.EventEmitter(true);
// Note that the default value will always be overwritten by `MatTabBody`, but we need one
// anyway to prevent the animations module from throwing an error if the body is used on its own.
/** Duration for the tab's animation. */
this.animationDuration = '500ms';
if (_dir) {
this._dirChangeSubscription = _dir.change.subscribe(function (dir) {
_this._computePositionAnimationState(dir);
changeDetectorRef.markForCheck();
});
}
// Ensure that we get unique animation events, because the `.done` callback can get
// invoked twice in some browsers. See https://github.com/angular/angular/issues/24084.
this._translateTabComplete.pipe(operators.distinctUntilChanged(function (x, y) {
return x.fromState === y.fromState && x.toState === y.toState;
})).subscribe(function (event) {
// If the transition to the center is complete, emit an event.
if (_this._isCenterPosition(event.toState) && _this._isCenterPosition(_this._position)) {
_this._onCentered.emit();
}
if (_this._isCenterPosition(event.fromState) && !_this._isCenterPosition(_this._position)) {
_this._afterLeavingCenter.emit();
}
});
}
Object.defineProperty(_MatTabBodyBase.prototype, "position", {
/** The shifted index position of the tab body, where zero represents the active center tab. */
set: function (position) {
this._positionIndex = position;
this._computePositionAnimationState();
},
enumerable: true,
configurable: true
});
/**
* After initialized, check if the content is centered and has an origin. If so, set the
* special position states that transition the tab from the left or right before centering.
*/
_MatTabBodyBase.prototype.ngOnInit = function () {
if (this._position == 'center' && this.origin != null) {
this._position = this._computePositionFromOrigin(this.origin);
}
};
_MatTabBodyBase.prototype.ngOnDestroy = function () {
this._dirChangeSubscription.unsubscribe();
this._translateTabComplete.complete();
};
_MatTabBodyBase.prototype._onTranslateTabStarted = function (event) {
var isCentering = this._isCenterPosition(event.toState);
this._beforeCentering.emit(isCentering);
if (isCentering) {
this._onCentering.emit(this._elementRef.nativeElement.clientHeight);
}
};
/** The text direction of the containing app. */
_MatTabBodyBase.prototype._getLayoutDirection = function () {
return this._dir && this._dir.value === 'rtl' ? 'rtl' : 'ltr';
};
/** Whether the provided position state is considered center, regardless of origin. */
_MatTabBodyBase.prototype._isCenterPosition = function (position) {
return position == 'center' ||
position == 'left-origin-center' ||
position == 'right-origin-center';
};
/** Computes the position state that will be used for the tab-body animation trigger. */
_MatTabBodyBase.prototype._computePositionAnimationState = function (dir) {
if (dir === void 0) { dir = this._getLayoutDirection(); }
if (this._positionIndex < 0) {
this._position = dir == 'ltr' ? 'left' : 'right';
}
else if (this._positionIndex > 0) {
this._position = dir == 'ltr' ? 'right' : 'left';
}
else {
this._position = 'center';
}
};
/**
* Computes the position state based on the specified origin position. This is used if the
* tab is becoming visible immediately after creation.
*/
_MatTabBodyBase.prototype._computePositionFromOrigin = function (origin) {
var dir = this._getLayoutDirection();
if ((dir == 'ltr' && origin <= 0) || (dir == 'rtl' && origin > 0)) {
return 'left-origin-center';
}
return 'right-origin-center';
};
_MatTabBodyBase.decorators = [
{ type: core.Directive }
];
/** @nocollapse */
_MatTabBodyBase.ctorParameters = function () { return [
{ type: core.ElementRef },
{ type: bidi.Directionality, decorators: [{ type: core.Optional }] },
{ type: core.ChangeDetectorRef }
]; };
_MatTabBodyBase.propDecorators = {
_onCentering: [{ type: core.Output }],
_beforeCentering: [{ type: core.Output }],
_afterLeavingCenter: [{ type: core.Output }],
_onCentered: [{ type: core.Output }],
_content: [{ type: core.Input, args: ['content',] }],
origin: [{ type: core.Input }],
animationDuration: [{ type: core.Input }],
position: [{ type: core.Input }]
};
return _MatTabBodyBase;
}());
/**
* Wrapper for the contents of a tab.
* @docs-private
*/
var MatTabBody = /** @class */ (function (_super) {
__extends(MatTabBody, _super);
function MatTabBody(elementRef, dir, changeDetectorRef) {
return _super.call(this, elementRef, dir, changeDetectorRef) || this;
}
MatTabBody.decorators = [
{ type: core.Component, args: [{
selector: 'mat-tab-body',
template: "<div class=\"mat-tab-body-content\" #content\n [@translateTab]=\"{\n value: _position,\n params: {animationDuration: animationDuration}\n }\"\n (@translateTab.start)=\"_onTranslateTabStarted($event)\"\n (@translateTab.done)=\"_translateTabComplete.next($event)\">\n <ng-template matTabBodyHost></ng-template>\n</div>\n",
encapsulation: core.ViewEncapsulation.None,
// tslint:disable-next-line:validate-decorators
changeDetection: core.ChangeDetectionStrategy.Default,
animations: [matTabsAnimations.translateTab],
host: {
'class': 'mat-tab-body',
},
styles: [".mat-tab-body-content{height:100%;overflow:auto}.mat-tab-group-dynamic-height .mat-tab-body-content{overflow:hidden}\n"]
}] }
];
/** @nocollapse */
MatTabBody.ctorParameters = function () { return [
{ type: core.ElementRef },
{ type: bidi.Directionality, decorators: [{ type: core.Optional }] },
{ type: core.ChangeDetectorRef }
]; };
MatTabBody.propDecorators = {
_portalHost: [{ type: core.ViewChild, args: [portal.PortalHostDirective,] }]
};
return MatTabBody;
}(_MatTabBodyBase));
/**
* @license
* Copyright Google LLC All Rights Reserved.
*
* Use of this source code is governed by an MIT-style license that can be
* found in the LICENSE file at https://angular.io/license
*/
/** Injection token that can be used to provide the default options the tabs module. */
var MAT_TABS_CONFIG = new core.InjectionToken('MAT_TABS_CONFIG');
/**
* @license
* Copyright Google LLC All Rights Reserved.
*
* Use of this source code is governed by an MIT-style license that can be
* found in the LICENSE file at https://angular.io/license
*/
/** Used to generate unique ID's for each tab component */
var nextId = 0;
/** A simple change event emitted on focus or selection changes. */
var MatTabChangeEvent = /** @class */ (function () {
function MatTabChangeEvent() {
}
return MatTabChangeEvent;
}());
// Boilerplate for applying mixins to MatTabGroup.
/** @docs-private */
var MatTabGroupMixinBase = /** @class */ (function () {
function MatTabGroupMixinBase(_elementRef) {
this._elementRef = _elementRef;
}
return MatTabGroupMixinBase;
}());
var _MatTabGroupMixinBase = core$1.mixinColor(core$1.mixinDisableRipple(MatTabGroupMixinBase), 'primary');
/**
* Base class with all of the `MatTabGroupBase` functionality.
* @docs-private
*/
var _MatTabGroupBase = /** @class */ (function (_super) {
__extends(_MatTabGroupBase, _super);
function _MatTabGroupBase(elementRef, _changeDetectorRef, defaultConfig, _animationMode) {
var _this = _super.call(this, elementRef) || this;
_this._changeDetectorRef = _changeDetectorRef;
_this._animationMode = _animationMode;
/** All of the tabs that belong to the group. */
_this._tabs = new core.QueryList();
/** The tab index that should be selected after the content has been checked. */
_this._indexToSelect = 0;
/** Snapshot of the height of the tab body wrapper before another tab is activated. */
_this._tabBodyWrapperHeight = 0;
/** Subscription to tabs being added/removed. */
_this._tabsSubscription = rxjs.Subscription.EMPTY;
/** Subscription to changes in the tab labels. */
_this._tabLabelSubscription = rxjs.Subscription.EMPTY;
_this._dynamicHeight = false;
_this._selectedIndex = null;
/** Position of the tab header. */
_this.headerPosition = 'above';
/** Output to enable support for two-way binding on `[(selectedIndex)]` */
_this.selectedIndexChange = new core.EventEmitter();
/** Event emitted when focus has changed within a tab group. */
_this.focusChange = new core.EventEmitter();
/** Event emitted when the body animation has completed */
_this.animationDone = new core.EventEmitter();
/** Event emitted when the tab selection has changed. */
_this.selectedTabChange = new core.EventEmitter(true);
_this._groupId = nextId++;
_this.animationDuration = defaultConfig && defaultConfig.animationDuration ?
defaultConfig.animationDuration : '500ms';
_this.disablePagination = defaultConfig && defaultConfig.disablePagination != null ?
defaultConfig.disablePagination : false;
return _this;
}
Object.defineProperty(_MatTabGroupBase.prototype, "dynamicHeight", {
/** Whether the tab group should grow to the size of the active tab. */
get: function () { return this._dynamicHeight; },
set: function (value) { this._dynamicHeight = coercion.coerceBooleanProperty(value); },
enumerable: true,
configurable: true
});
Object.defineProperty(_MatTabGroupBase.prototype, "selectedIndex", {
/** The index of the active tab. */
get: function () { return this._selectedIndex; },
set: function (value) {
this._indexToSelect = coercion.coerceNumberProperty(value, null);
},
enumerable: true,
configurable: true
});
Object.defineProperty(_MatTabGroupBase.prototype, "animationDuration", {
/** Duration for the tab animation. Will be normalized to milliseconds if no units are set. */
get: function () { return this._animationDuration; },
set: function (value) {
this._animationDuration = /^\d+$/.test(value) ? value + 'ms' : value;
},
enumerable: true,
configurable: true
});
Object.defineProperty(_MatTabGroupBase.prototype, "backgroundColor", {
/** Background color of the tab group. */
get: function () { return this._backgroundColor; },
set: function (value) {
var nativeElement = this._elementRef.nativeElement;
nativeElement.classList.remove("mat-background-" + this.backgroundColor);
if (value) {
nativeElement.classList.add("mat-background-" + value);
}
this._backgroundColor = value;
},
enumerable: true,
configurable: true
});
/**
* After the content is checked, this component knows what tabs have been defined
* and what the selected index should be. This is where we can know exactly what position
* each tab should be in according to the new selected index, and additionally we know how
* a new selected tab should transition in (from the left or right).
*/
_MatTabGroupBase.prototype.ngAfterContentChecked = function () {
var _this = this;
// Don't clamp the `indexToSelect` immediately in the setter because it can happen that
// the amount of tabs changes before the actual change detection runs.
var indexToSelect = this._indexToSelect = this._clampTabIndex(this._indexToSelect);
// If there is a change in selected index, emit a change event. Should not trigger if
// the selected index has not yet been initialized.
if (this._selectedIndex != indexToSelect) {
var isFirstRun_1 = this._selectedIndex == null;
if (!isFirstRun_1) {
this.selectedTabChange.emit(this._createChangeEvent(indexToSelect));
}
// Changing these values after change detection has run
// since the checked content may contain references to them.
Promise.resolve().then(function () {
_this._tabs.forEach(function (tab, index) { return tab.isActive = index === indexToSelect; });
if (!isFirstRun_1) {
_this.selectedIndexChange.emit(indexToSelect);
}
});
}
// Setup the position for each tab and optionally setup an origin on the next selected tab.
this._tabs.forEach(function (tab, index) {
tab.position = index - indexToSelect;
// If there is already a selected tab, then set up an origin for the next selected tab
// if it doesn't have one already.
if (_this._selectedIndex != null && tab.position == 0 && !tab.origin) {
tab.origin = indexToSelect - _this._selectedIndex;
}
});
if (this._selectedIndex !== indexToSelect) {
this._selectedIndex = indexToSelect;
this._changeDetectorRef.markForCheck();
}
};
_MatTabGroupBase.prototype.ngAfterContentInit = function () {
var _this = this;
this._subscribeToAllTabChanges();
this._subscribeToTabLabels();
// Subscribe to changes in the amount of tabs, in order to be
// able to re-render the content as new tabs are added or removed.
this._tabsSubscription = this._tabs.changes.subscribe(function () {
var indexToSelect = _this._clampTabIndex(_this._indexToSelect);
// Maintain the previously-selected tab if a new tab is added or removed and there is no
// explicit change that selects a different tab.
if (indexToSelect === _this._selectedIndex) {
var tabs = _this._tabs.toArray();
for (var i = 0; i < tabs.length; i++) {
if (tabs[i].isActive) {
// Assign both to the `_indexToSelect` and `_selectedIndex` so we don't fire a changed
// event, otherwise the consumer may end up in an infinite loop in some edge cases like
// adding a tab within the `selectedIndexChange` event.
_this._indexToSelect = _this._selectedIndex = i;
break;
}
}
}
_this._changeDetectorRef.markForCheck();
});
};
/** Listens to changes in all of the tabs. */
_MatTabGroupBase.prototype._subscribeToAllTabChanges = function () {
var _this = this;
// Since we use a query with `descendants: true` to pick up the tabs, we may end up catching
// some that are inside of nested tab groups. We filter them out manually by checking that
// the closest group to the tab is the current one.
this._allTabs.changes
.pipe(operators.startWith(this._allTabs))
.subscribe(function (tabs) {
_this._tabs.reset(tabs.filter(function (tab) {
// @breaking-change 10.0.0 Remove null check for `_closestTabGroup`
// once it becomes a required parameter in MatTab.
return !tab._closestTabGroup || tab._closestTabGroup === _this;
}));
_this._tabs.notifyOnChanges();
});
};
_MatTabGroupBase.prototype.ngOnDestroy = function () {
this._tabs.destroy();
this._tabsSubscription.unsubscribe();
this._tabLabelSubscription.unsubscribe();
};
/** Re-aligns the ink bar to the selected tab element. */
_MatTabGroupBase.prototype.realignInkBar = function () {
if (this._tabHeader) {
this._tabHeader._alignInkBarToSelectedTab();
}
};
_MatTabGroupBase.prototype._focusChanged = function (index) {
this.focusChange.emit(this._createChangeEvent(index));
};
_MatTabGroupBase.prototype._createChangeEvent = function (index) {
var event = new MatTabChangeEvent;
event.index = index;
if (this._tabs && this._tabs.length) {
event.tab = this._tabs.toArray()[index];
}
return event;
};
/**
* Subscribes to changes in the tab labels. This is needed, because the @Input for the label is
* on the MatTab component, whereas the data binding is inside the MatTabGroup. In order for the
* binding to be updated, we need to subscribe to changes in it and trigger change detection
* manually.
*/
_MatTabGroupBase.prototype._subscribeToTabLabels = function () {
var _this = this;
if (this._tabLabelSubscription) {
this._tabLabelSubscription.unsubscribe();
}
this._tabLabelSubscription = rxjs.merge.apply(void 0, __spread(this._tabs.map(function (tab) { return tab._stateChanges; }))).subscribe(function () { return _this._changeDetectorRef.markForCheck(); });
};
/** Clamps the given index to the bounds of 0 and the tabs length. */
_MatTabGroupBase.prototype._clampTabIndex = function (index) {
// Note the `|| 0`, which ensures that values like NaN can't get through
// and which would otherwise throw the component into an infinite loop
// (since Math.max(NaN, 0) === NaN).
return Math.min(this._tabs.length - 1, Math.max(index || 0, 0));
};
/** Returns a unique id for each tab label element */
_MatTabGroupBase.prototype._getTabLabelId = function (i) {
return "mat-tab-label-" + this._groupId + "-" + i;
};
/** Returns a unique id for each tab content element */
_MatTabGroupBase.prototype._getTabContentId = function (i) {
return "mat-tab-content-" + this._groupId + "-" + i;
};
/**
* Sets the height of the body wrapper to the height of the activating tab if dynamic
* height property is true.
*/
_MatTabGroupBase.prototype._setTabBodyWrapperHeight = function (tabHeight) {
if (!this._dynamicHeight || !this._tabBodyWrapperHeight) {
return;
}
var wrapper = this._tabBodyWrapper.nativeElement;
wrapper.style.height = this._tabBodyWrapperHeight + 'px';
// This conditional forces the browser to paint the height so that
// the animation to the new height can have an origin.
if (this._tabBodyWrapper.nativeElement.offsetHeight) {
wrapper.style.height = tabHeight + 'px';
}
};
/** Removes the height of the tab body wrapper. */
_MatTabGroupBase.prototype._removeTabBodyWrapperHeight = function () {
var wrapper = this._tabBodyWrapper.nativeElement;
this._tabBodyWrapperHeight = wrapper.clientHeight;
wrapper.style.height = '';
this.animationDone.emit();
};
/** Handle click events, setting new selected index if appropriate. */
_MatTabGroupBase.prototype._handleClick = function (tab, tabHeader, index) {
if (!tab.disabled) {
this.selectedIndex = tabHeader.focusIndex = index;
}
};
/** Retrieves the tabindex for the tab. */
_MatTabGroupBase.prototype._getTabIndex = function (tab, idx) {
if (tab.disabled) {
return null;
}
return this.selectedIndex === idx ? 0 : -1;
};
_MatTabGroupBase.decorators = [