@angular/material
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Angular Material
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JavaScript
/**
* @license
* Copyright Google Inc. 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
*/
import { ObserversModule } from '@angular/cdk/observers';
import { PortalHostDirective, PortalModule, TemplatePortal, TemplatePortalDirective } from '@angular/cdk/portal';
import { ScrollDispatchModule, VIEWPORT_RULER_PROVIDER, ViewportRuler } from '@angular/cdk/scrolling';
import { CommonModule } from '@angular/common';
import { ChangeDetectionStrategy, ChangeDetectorRef, Component, ContentChild, ContentChildren, Directive, ElementRef, EventEmitter, Inject, Input, NgModule, NgZone, Optional, Output, Renderer2, TemplateRef, ViewChild, ViewContainerRef, ViewEncapsulation, forwardRef } from '@angular/core';
import { MAT_RIPPLE_GLOBAL_OPTIONS, MatCommonModule, MatRipple, MatRippleModule, mixinColor, mixinDisableRipple, mixinDisabled } from '@angular/material/core';
import { __extends } from 'tslib';
import * as tslib_1 from 'tslib';
import { Subject } from 'rxjs/Subject';
import { animate, state, style, transition, trigger } from '@angular/animations';
import { Directionality } from '@angular/cdk/bidi';
import { coerceBooleanProperty } from '@angular/cdk/coercion';
import { Subscription } from 'rxjs/Subscription';
import { merge } from 'rxjs/observable/merge';
import { ENTER, LEFT_ARROW, RIGHT_ARROW, SPACE } from '@angular/cdk/keycodes';
import { startWith, takeUntil } from '@angular/cdk/rxjs';
import { of } from 'rxjs/observable/of';
import { Platform } from '@angular/cdk/platform';
/**
* The ink-bar is used to display and animate the line underneath the current active tab label.
* \@docs-private
*/
var MatInkBar = (function () {
/**
* @param {?} _renderer
* @param {?} _elementRef
* @param {?} _ngZone
*/
function MatInkBar(_renderer, _elementRef, _ngZone) {
this._renderer = _renderer;
this._elementRef = _elementRef;
this._ngZone = _ngZone;
}
/**
* 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
* @return {?}
*/
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.
* @return {?}
*/
MatInkBar.prototype.show = function () {
this._renderer.setStyle(this._elementRef.nativeElement, 'visibility', 'visible');
};
/**
* Hides the ink bar.
* @return {?}
*/
MatInkBar.prototype.hide = function () {
this._renderer.setStyle(this._elementRef.nativeElement, 'visibility', 'hidden');
};
/**
* Sets the proper styles to the ink bar element.
* @param {?} element
* @return {?}
*/
MatInkBar.prototype._setStyles = function (element) {
var /** @type {?} */ left = element ? (element.offsetLeft || 0) + 'px' : '0';
var /** @type {?} */ width = element ? (element.offsetWidth || 0) + 'px' : '0';
this._renderer.setStyle(this._elementRef.nativeElement, 'left', left);
this._renderer.setStyle(this._elementRef.nativeElement, 'width', width);
};
MatInkBar.decorators = [
{ type: Directive, args: [{
selector: 'mat-ink-bar',
host: {
'class': 'mat-ink-bar',
},
},] },
];
/**
* @nocollapse
*/
MatInkBar.ctorParameters = function () { return [
{ type: Renderer2, },
{ type: ElementRef, },
{ type: NgZone, },
]; };
return MatInkBar;
}());
/**
* Workaround for https://github.com/angular/angular/issues/17849
*/
var _MatTabLabelBaseClass = TemplatePortalDirective;
/**
* Used to flag tab labels for use with the portal directive
*/
var MatTabLabel = (function (_super) {
__extends(MatTabLabel, _super);
/**
* @param {?} templateRef
* @param {?} viewContainerRef
*/
function MatTabLabel(templateRef, viewContainerRef) {
return _super.call(this, templateRef, viewContainerRef) || this;
}
MatTabLabel.decorators = [
{ type: Directive, args: [{
selector: '[mat-tab-label], [matTabLabel]',
},] },
];
/**
* @nocollapse
*/
MatTabLabel.ctorParameters = function () { return [
{ type: TemplateRef, },
{ type: ViewContainerRef, },
]; };
return MatTabLabel;
}(_MatTabLabelBaseClass));
/**
* \@docs-private
*/
var MatTabBase = (function () {
function MatTabBase() {
}
return MatTabBase;
}());
var _MatTabMixinBase = mixinDisabled(MatTabBase);
var MatTab = (function (_super) {
__extends(MatTab, _super);
/**
* @param {?} _viewContainerRef
*/
function MatTab(_viewContainerRef) {
var _this = _super.call(this) || this;
_this._viewContainerRef = _viewContainerRef;
/**
* The plain text label for the tab, used when there is no template label.
*/
_this.textLabel = '';
/**
* The portal that will be the hosted content of the tab
*/
_this._contentPortal = null;
/**
* Emits whenever the label changes.
*/
_this._labelChange = new Subject();
/**
* Emits whenevfer the disable changes
*/
_this._disableChange = new 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, "content", {
/**
* @return {?}
*/
get: function () { return this._contentPortal; },
enumerable: true,
configurable: true
});
/**
* @param {?} changes
* @return {?}
*/
MatTab.prototype.ngOnChanges = function (changes) {
if (changes.hasOwnProperty('textLabel')) {
this._labelChange.next();
}
if (changes.hasOwnProperty('disabled')) {
this._disableChange.next();
}
};
/**
* @return {?}
*/
MatTab.prototype.ngOnDestroy = function () {
this._disableChange.complete();
this._labelChange.complete();
};
/**
* @return {?}
*/
MatTab.prototype.ngOnInit = function () {
this._contentPortal = new TemplatePortal(this._content, this._viewContainerRef);
};
MatTab.decorators = [
{ type: Component, args: [{selector: 'mat-tab',
template: "<ng-template><ng-content></ng-content></ng-template>",
inputs: ['disabled'],
changeDetection: ChangeDetectionStrategy.OnPush,
encapsulation: ViewEncapsulation.None,
preserveWhitespaces: false,
exportAs: 'matTab',
},] },
];
/**
* @nocollapse
*/
MatTab.ctorParameters = function () { return [
{ type: ViewContainerRef, },
]; };
MatTab.propDecorators = {
'templateLabel': [{ type: ContentChild, args: [MatTabLabel,] },],
'_content': [{ type: ViewChild, args: [TemplateRef,] },],
'textLabel': [{ type: Input, args: ['label',] },],
};
return MatTab;
}(_MatTabMixinBase));
/**
* Wrapper for the contents of a tab.
* \@docs-private
*/
var MatTabBody = (function () {
/**
* @param {?} _elementRef
* @param {?} _dir
*/
function MatTabBody(_elementRef, _dir) {
this._elementRef = _elementRef;
this._dir = _dir;
/**
* Event emitted when the tab begins to animate towards the center as the active tab.
*/
this._onCentering = new EventEmitter();
/**
* Event emitted when the tab completes its animation towards the center.
*/
this._onCentered = new EventEmitter(true);
}
Object.defineProperty(MatTabBody.prototype, "position", {
/**
* @param {?} position
* @return {?}
*/
set: function (position) {
if (position < 0) {
this._position = this._getLayoutDirection() == 'ltr' ? 'left' : 'right';
}
else if (position > 0) {
this._position = this._getLayoutDirection() == 'ltr' ? 'right' : 'left';
}
else {
this._position = 'center';
}
},
enumerable: true,
configurable: true
});
Object.defineProperty(MatTabBody.prototype, "origin", {
/**
* The origin position from which this tab should appear when it is centered into view.
* @param {?} origin
* @return {?}
*/
set: function (origin) {
if (origin == null) {
return;
}
var /** @type {?} */ dir = this._getLayoutDirection();
if ((dir == 'ltr' && origin <= 0) || (dir == 'rtl' && origin > 0)) {
this._origin = 'left';
}
else {
this._origin = 'right';
}
},
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.
* @return {?}
*/
MatTabBody.prototype.ngOnInit = function () {
if (this._position == 'center' && this._origin) {
this._position = this._origin == 'left' ? 'left-origin-center' : 'right-origin-center';
}
};
/**
* After the view has been set, check if the tab content is set to the center and attach the
* content if it is not already attached.
* @return {?}
*/
MatTabBody.prototype.ngAfterViewChecked = function () {
if (this._isCenterPosition(this._position) && !this._portalHost.hasAttached()) {
this._portalHost.attach(this._content);
}
};
/**
* @param {?} e
* @return {?}
*/
MatTabBody.prototype._onTranslateTabStarted = function (e) {
if (this._isCenterPosition(e.toState)) {
this._onCentering.emit(this._elementRef.nativeElement.clientHeight);
}
};
/**
* @param {?} e
* @return {?}
*/
MatTabBody.prototype._onTranslateTabComplete = function (e) {
// If the end state is that the tab is not centered, then detach the content.
if (!this._isCenterPosition(e.toState) && !this._isCenterPosition(this._position)) {
this._portalHost.detach();
}
// If the transition to the center is complete, emit an event.
if (this._isCenterPosition(e.toState) && this._isCenterPosition(this._position)) {
this._onCentered.emit();
}
};
/**
* The text direction of the containing app.
* @return {?}
*/
MatTabBody.prototype._getLayoutDirection = function () {
return this._dir && this._dir.value === 'rtl' ? 'rtl' : 'ltr';
};
/**
* Whether the provided position state is considered center, regardless of origin.
* @param {?} position
* @return {?}
*/
MatTabBody.prototype._isCenterPosition = function (position) {
return position == 'center' ||
position == 'left-origin-center' ||
position == 'right-origin-center';
};
MatTabBody.decorators = [
{ type: Component, args: [{selector: 'mat-tab-body',
template: "<div class=\"mat-tab-body-content\" #content [@translateTab]=\"_position\" (@translateTab.start)=\"_onTranslateTabStarted($event)\" (@translateTab.done)=\"_onTranslateTabComplete($event)\"><ng-template cdkPortalHost></ng-template></div>",
styles: [".mat-tab-body-content{height:100%;overflow:auto}.mat-tab-group-dynamic-height .mat-tab-body-content{overflow:hidden}"],
encapsulation: ViewEncapsulation.None,
preserveWhitespaces: false,
changeDetection: ChangeDetectionStrategy.OnPush,
host: {
'class': 'mat-tab-body',
},
animations: [
trigger('translateTab', [
// Note: transitions to `none` instead of 0, because some browsers might blur the content.
state('center, void, left-origin-center, right-origin-center', style({ transform: 'none' })),
state('left', style({ transform: 'translate3d(-100%, 0, 0)' })),
state('right', style({ transform: 'translate3d(100%, 0, 0)' })),
transition('* => left, * => right, left => center, right => center', animate('500ms cubic-bezier(0.35, 0, 0.25, 1)')),
transition('void => left-origin-center', [
style({ transform: 'translate3d(-100%, 0, 0)' }),
animate('500ms cubic-bezier(0.35, 0, 0.25, 1)')
]),
transition('void => right-origin-center', [
style({ transform: 'translate3d(100%, 0, 0)' }),
animate('500ms cubic-bezier(0.35, 0, 0.25, 1)')
])
])
]
},] },
];
/**
* @nocollapse
*/
MatTabBody.ctorParameters = function () { return [
{ type: ElementRef, },
{ type: Directionality, decorators: [{ type: Optional },] },
]; };
MatTabBody.propDecorators = {
'_portalHost': [{ type: ViewChild, args: [PortalHostDirective,] },],
'_onCentering': [{ type: Output },],
'_onCentered': [{ type: Output },],
'_content': [{ type: Input, args: ['content',] },],
'position': [{ type: Input, args: ['position',] },],
'origin': [{ type: Input, args: ['origin',] },],
};
return MatTabBody;
}());
/**
* 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 = (function () {
function MatTabChangeEvent() {
}
return MatTabChangeEvent;
}());
/**
* \@docs-private
*/
var MatTabGroupBase = (function () {
/**
* @param {?} _renderer
* @param {?} _elementRef
*/
function MatTabGroupBase(_renderer, _elementRef) {
this._renderer = _renderer;
this._elementRef = _elementRef;
}
return MatTabGroupBase;
}());
var _MatTabGroupMixinBase = mixinColor(mixinDisableRipple(MatTabGroupBase), 'primary');
/**
* Material design tab-group component. Supports basic tab pairs (label + content) and includes
* animated ink-bar, keyboard navigation, and screen reader.
* See: https://www.google.com/design/spec/components/tabs.html
*/
var MatTabGroup = (function (_super) {
__extends(MatTabGroup, _super);
/**
* @param {?} _renderer
* @param {?} elementRef
* @param {?} _changeDetectorRef
*/
function MatTabGroup(_renderer, elementRef, _changeDetectorRef) {
var _this = _super.call(this, _renderer, elementRef) || this;
_this._changeDetectorRef = _changeDetectorRef;
/**
* Whether this component has been initialized.
*/
_this._isInitialized = false;
/**
* 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 = Subscription.EMPTY;
/**
* Subscription to changes in the tab labels.
*/
_this._tabLabelSubscription = 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 EventEmitter();
/**
* Event emitted when focus has changed within a tab group.
*/
_this.focusChange = new EventEmitter();
/**
* Event emitted when the tab selection has changed.
*/
_this.selectedTabChange = new EventEmitter(true);
/**
* Event emitted when the tab selection has changed.
* @deprecated Use `selectedTabChange` instead.
*/
_this.selectChange = _this.selectedTabChange;
_this._groupId = nextId++;
return _this;
}
Object.defineProperty(MatTabGroup.prototype, "dynamicHeight", {
/**
* Whether the tab group should grow to the size of the active tab.
* @return {?}
*/
get: function () { return this._dynamicHeight; },
/**
* @param {?} value
* @return {?}
*/
set: function (value) { this._dynamicHeight = coerceBooleanProperty(value); },
enumerable: true,
configurable: true
});
Object.defineProperty(MatTabGroup.prototype, "_dynamicHeightDeprecated", {
/**
* @deprecated
* @return {?}
*/
get: function () { return this._dynamicHeight; },
/**
* @param {?} value
* @return {?}
*/
set: function (value) { this._dynamicHeight = value; },
enumerable: true,
configurable: true
});
Object.defineProperty(MatTabGroup.prototype, "selectedIndex", {
/**
* @return {?}
*/
get: function () { return this._selectedIndex; },
/**
* The index of the active tab.
* @param {?} value
* @return {?}
*/
set: function (value) { this._indexToSelect = value; },
enumerable: true,
configurable: true
});
Object.defineProperty(MatTabGroup.prototype, "backgroundColor", {
/**
* Background color of the tab group.
* @return {?}
*/
get: function () { return this._backgroundColor; },
/**
* @param {?} value
* @return {?}
*/
set: function (value) {
var /** @type {?} */ nativeElement = this._elementRef.nativeElement;
this._renderer.removeClass(nativeElement, "mat-background-" + this.backgroundColor);
if (value) {
this._renderer.addClass(nativeElement, "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).
* @return {?}
*/
MatTabGroup.prototype.ngAfterContentChecked = function () {
var _this = this;
// Clamp the next selected index to the boundsof 0 and the tabs length.
// 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).
var /** @type {?} */ indexToSelect = this._indexToSelect =
Math.min(this._tabs.length - 1, Math.max(this._indexToSelect || 0, 0));
// 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 && this._selectedIndex != null) {
var /** @type {?} */ tabChangeEvent = this._createChangeEvent(indexToSelect);
this.selectedTabChange.emit(tabChangeEvent);
// Emitting this value after change detection has run
// since the checked content may contain this variable'
Promise.resolve().then(function () { return _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;
tab.isActive = 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();
}
};
/**
* @return {?}
*/
MatTabGroup.prototype.ngAfterContentInit = function () {
var _this = this;
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 () {
_this._subscribeToTabLabels();
_this._changeDetectorRef.markForCheck();
});
};
/**
* @return {?}
*/
MatTabGroup.prototype.ngOnDestroy = function () {
this._tabsSubscription.unsubscribe();
this._tabLabelSubscription.unsubscribe();
};
/**
* Waits one frame for the view to update, then updates the ink bar
* Note: This must be run outside of the zone or it will create an infinite change detection loop.
* @return {?}
*/
MatTabGroup.prototype.ngAfterViewChecked = function () {
this._isInitialized = true;
};
/**
* @param {?} index
* @return {?}
*/
MatTabGroup.prototype._focusChanged = function (index) {
this.focusChange.emit(this._createChangeEvent(index));
};
/**
* @param {?} index
* @return {?}
*/
MatTabGroup.prototype._createChangeEvent = function (index) {
var /** @type {?} */ 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.
* @return {?}
*/
MatTabGroup.prototype._subscribeToTabLabels = function () {
var _this = this;
if (this._tabLabelSubscription) {
this._tabLabelSubscription.unsubscribe();
}
this._tabLabelSubscription = merge.apply(void 0, this._tabs.map(function (tab) { return tab._disableChange; }).concat(this._tabs.map(function (tab) { return tab._labelChange; }))).subscribe(function () {
_this._changeDetectorRef.markForCheck();
});
};
/**
* Returns a unique id for each tab label element
* @param {?} i
* @return {?}
*/
MatTabGroup.prototype._getTabLabelId = function (i) {
return "mat-tab-label-" + this._groupId + "-" + i;
};
/**
* Returns a unique id for each tab content element
* @param {?} i
* @return {?}
*/
MatTabGroup.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.
* @param {?} tabHeight
* @return {?}
*/
MatTabGroup.prototype._setTabBodyWrapperHeight = function (tabHeight) {
if (!this._dynamicHeight || !this._tabBodyWrapperHeight) {
return;
}
this._renderer.setStyle(this._tabBodyWrapper.nativeElement, '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) {
this._renderer.setStyle(this._tabBodyWrapper.nativeElement, 'height', tabHeight + 'px');
}
};
/**
* Removes the height of the tab body wrapper.
* @return {?}
*/
MatTabGroup.prototype._removeTabBodyWrapperHeight = function () {
this._tabBodyWrapperHeight = this._tabBodyWrapper.nativeElement.clientHeight;
this._renderer.setStyle(this._tabBodyWrapper.nativeElement, 'height', '');
};
MatTabGroup.decorators = [
{ type: Component, args: [{selector: 'mat-tab-group',
exportAs: 'matTabGroup',
template: "<mat-tab-header #tabHeader [selectedIndex]=\"selectedIndex\" [disableRipple]=\"disableRipple\" (indexFocused)=\"_focusChanged($event)\" (selectFocusedIndex)=\"selectedIndex = $event\"><div class=\"mat-tab-label\" role=\"tab\" matTabLabelWrapper mat-ripple *ngFor=\"let tab of _tabs; let i = index\" [id]=\"_getTabLabelId(i)\" [tabIndex]=\"selectedIndex == i ? 0 : -1\" [attr.aria-controls]=\"_getTabContentId(i)\" [attr.aria-selected]=\"selectedIndex == i\" [class.mat-tab-label-active]=\"selectedIndex == i\" [disabled]=\"tab.disabled\" [matRippleDisabled]=\"disableRipple\" (click)=\"tabHeader.focusIndex = selectedIndex = i\"><ng-template [ngIf]=\"tab.templateLabel\"><ng-template [cdkPortalHost]=\"tab.templateLabel\"></ng-template></ng-template><ng-template [ngIf]=\"!tab.templateLabel\">{{tab.textLabel}}</ng-template></div></mat-tab-header><div class=\"mat-tab-body-wrapper\" #tabBodyWrapper><mat-tab-body role=\"tabpanel\" *ngFor=\"let tab of _tabs; let i = index\" [id]=\"_getTabContentId(i)\" [attr.aria-labelledby]=\"_getTabLabelId(i)\" [class.mat-tab-body-active]=\"selectedIndex == i\" [content]=\"tab.content\" [position]=\"tab.position\" [origin]=\"tab.origin\" (_onCentered)=\"_removeTabBodyWrapperHeight()\" (_onCentering)=\"_setTabBodyWrapperHeight($event)\"></mat-tab-body></div>",
styles: [".mat-tab-group{display:flex;flex-direction:column}.mat-tab-group.mat-tab-group-inverted-header{flex-direction:column-reverse}.mat-tab-label{height:48px;padding:0 24px;cursor:pointer;box-sizing:border-box;opacity:.6;min-width:160px;text-align:center;display:inline-flex;justify-content:center;align-items:center;white-space:nowrap;position:relative}.mat-tab-label:focus{outline:0;opacity:1}.mat-tab-label.mat-tab-disabled{cursor:default;pointer-events:none}@media (max-width:600px){.mat-tab-label{padding:0 12px}}@media (max-width:960px){.mat-tab-label{padding:0 12px}}.mat-tab-group[mat-stretch-tabs] .mat-tab-label{flex-basis:0;flex-grow:1}.mat-tab-body-wrapper{position:relative;overflow:hidden;display:flex;transition:height .5s cubic-bezier(.35,0,.25,1)}.mat-tab-body{top:0;left:0;right:0;bottom:0;position:absolute;display:block;overflow:hidden}.mat-tab-body.mat-tab-body-active{position:relative;overflow-x:hidden;overflow-y:auto;z-index:1;flex-grow:1}.mat-tab-group.mat-tab-group-dynamic-height .mat-tab-body.mat-tab-body-active{overflow-y:hidden}"],
encapsulation: ViewEncapsulation.None,
preserveWhitespaces: false,
changeDetection: ChangeDetectionStrategy.OnPush,
inputs: ['color', 'disableRipple'],
host: {
'class': 'mat-tab-group',
'[class.mat-tab-group-dynamic-height]': 'dynamicHeight',
'[class.mat-tab-group-inverted-header]': 'headerPosition === "below"',
},
},] },
];
/**
* @nocollapse
*/
MatTabGroup.ctorParameters = function () { return [
{ type: Renderer2, },
{ type: ElementRef, },
{ type: ChangeDetectorRef, },
]; };
MatTabGroup.propDecorators = {
'_tabs': [{ type: ContentChildren, args: [MatTab,] },],
'_tabBodyWrapper': [{ type: ViewChild, args: ['tabBodyWrapper',] },],
'dynamicHeight': [{ type: Input },],
'_dynamicHeightDeprecated': [{ type: Input, args: ['mat-dynamic-height',] },],
'selectedIndex': [{ type: Input },],
'headerPosition': [{ type: Input },],
'backgroundColor': [{ type: Input },],
'selectedIndexChange': [{ type: Output },],
'focusChange': [{ type: Output },],
'selectedTabChange': [{ type: Output },],
'selectChange': [{ type: Output },],
};
return MatTabGroup;
}(_MatTabGroupMixinBase));
/**
* \@docs-private
*/
var MatTabLabelWrapperBase = (function () {
function MatTabLabelWrapperBase() {
}
return MatTabLabelWrapperBase;
}());
var _MatTabLabelWrapperMixinBase = mixinDisabled(MatTabLabelWrapperBase);
/**
* Used in the `mat-tab-group` view to display tab labels.
* \@docs-private
*/
var MatTabLabelWrapper = (function (_super) {
__extends(MatTabLabelWrapper, _super);
/**
* @param {?} elementRef
*/
function MatTabLabelWrapper(elementRef) {
var _this = _super.call(this) || this;
_this.elementRef = elementRef;
return _this;
}
/**
* Sets focus on the wrapper element
* @return {?}
*/
MatTabLabelWrapper.prototype.focus = function () {
this.elementRef.nativeElement.focus();
};
/**
* @return {?}
*/
MatTabLabelWrapper.prototype.getOffsetLeft = function () {
return this.elementRef.nativeElement.offsetLeft;
};
/**
* @return {?}
*/
MatTabLabelWrapper.prototype.getOffsetWidth = function () {
return this.elementRef.nativeElement.offsetWidth;
};
MatTabLabelWrapper.decorators = [
{ type: Directive, args: [{
selector: '[matTabLabelWrapper]',
inputs: ['disabled'],
host: {
'[class.mat-tab-disabled]': 'disabled'
}
},] },
];
/**
* @nocollapse
*/
MatTabLabelWrapper.ctorParameters = function () { return [
{ type: ElementRef, },
]; };
return MatTabLabelWrapper;
}(_MatTabLabelWrapperMixinBase));
/**
* The distance in pixels that will be overshot when scrolling a tab label into view. This helps
* provide a small affordance to the label next to it.
*/
var EXAGGERATED_OVERSCROLL = 60;
/**
* \@docs-private
*/
var MatTabHeaderBase = (function () {
function MatTabHeaderBase() {
}
return MatTabHeaderBase;
}());
var _MatTabHeaderMixinBase = mixinDisableRipple(MatTabHeaderBase);
/**
* The header of the tab group which displays a list of all the tabs in the tab group. Includes
* an ink bar that follows the currently selected tab. When the tabs list's width exceeds the
* width of the header container, then arrows will be displayed to allow the user to scroll
* left and right across the header.
* \@docs-private
*/
var MatTabHeader = (function (_super) {
__extends(MatTabHeader, _super);
/**
* @param {?} _elementRef
* @param {?} _renderer
* @param {?} _changeDetectorRef
* @param {?} _viewportRuler
* @param {?} _dir
*/
function MatTabHeader(_elementRef, _renderer, _changeDetectorRef, _viewportRuler, _dir) {
var _this = _super.call(this) || this;
_this._elementRef = _elementRef;
_this._renderer = _renderer;
_this._changeDetectorRef = _changeDetectorRef;
_this._viewportRuler = _viewportRuler;
_this._dir = _dir;
/**
* The tab index that is focused.
*/
_this._focusIndex = 0;
/**
* The distance in pixels that the tab labels should be translated to the left.
*/
_this._scrollDistance = 0;
/**
* Whether the header should scroll to the selected index after the view has been checked.
*/
_this._selectedIndexChanged = false;
/**
* Combines listeners that will re-align the ink bar whenever they're invoked.
*/
_this._realignInkBar = Subscription.EMPTY;
/**
* Whether the controls for pagination should be displayed
*/
_this._showPaginationControls = false;
/**
* Whether the tab list can be scrolled more towards the end of the tab label list.
*/
_this._disableScrollAfter = true;
/**
* Whether the tab list can be scrolled more towards the beginning of the tab label list.
*/
_this._disableScrollBefore = true;
_this._selectedIndex = 0;
/**
* Event emitted when the option is selected.
*/
_this.selectFocusedIndex = new EventEmitter();
/**
* Event emitted when a label is focused.
*/
_this.indexFocused = new EventEmitter();
return _this;
}
Object.defineProperty(MatTabHeader.prototype, "selectedIndex", {
/**
* The index of the active tab.
* @return {?}
*/
get: function () { return this._selectedIndex; },
/**
* @param {?} value
* @return {?}
*/
set: function (value) {
this._selectedIndexChanged = this._selectedIndex != value;
this._selectedIndex = value;
this._focusIndex = value;
},
enumerable: true,
configurable: true
});
/**
* @return {?}
*/
MatTabHeader.prototype.ngAfterContentChecked = function () {
// If the number of tab labels have changed, check if scrolling should be enabled
if (this._tabLabelCount != this._labelWrappers.length) {
this._updatePagination();
this._tabLabelCount = this._labelWrappers.length;
this._changeDetectorRef.markForCheck();
}
// If the selected index has changed, scroll to the label and check if the scrolling controls
// should be disabled.
if (this._selectedIndexChanged) {
this._scrollToLabel(this._selectedIndex);
this._checkScrollingControls();
this._alignInkBarToSelectedTab();
this._selectedIndexChanged = false;
this._changeDetectorRef.markForCheck();
}
// If the scroll distance has been changed (tab selected, focused, scroll controls activated),
// then translate the header to reflect this.
if (this._scrollDistanceChanged) {
this._updateTabScrollPosition();
this._scrollDistanceChanged = false;
this._changeDetectorRef.markForCheck();
}
};
/**
* @param {?} event
* @return {?}
*/
MatTabHeader.prototype._handleKeydown = function (event) {
switch (event.keyCode) {
case RIGHT_ARROW:
this._focusNextTab();
break;
case LEFT_ARROW:
this._focusPreviousTab();
break;
case ENTER:
case SPACE:
this.selectFocusedIndex.emit(this.focusIndex);
event.preventDefault();
break;
}
};
/**
* Aligns the ink bar to the selected tab on load.
* @return {?}
*/
MatTabHeader.prototype.ngAfterContentInit = function () {
var _this = this;
var /** @type {?} */ dirChange = this._dir ? this._dir.change : of(null);
var /** @type {?} */ resize = this._viewportRuler.change(150);
this._realignInkBar = startWith.call(merge(dirChange, resize), null).subscribe(function () {
_this._updatePagination();
_this._alignInkBarToSelectedTab();
});
};
/**
* @return {?}
*/
MatTabHeader.prototype.ngOnDestroy = function () {
this._realignInkBar.unsubscribe();
};
/**
* Callback for when the MutationObserver detects that the content has changed.
* @return {?}
*/
MatTabHeader.prototype._onContentChanges = function () {
this._updatePagination();
this._alignInkBarToSelectedTab();
this._changeDetectorRef.markForCheck();
};
/**
* Updating the view whether pagination should be enabled or not
* @return {?}
*/
MatTabHeader.prototype._updatePagination = function () {
this._checkPaginationEnabled();
this._checkScrollingControls();
this._updateTabScrollPosition();
};
Object.defineProperty(MatTabHeader.prototype, "focusIndex", {
/**
* Tracks which element has focus; used for keyboard navigation
* @return {?}
*/
get: function () { return this._focusIndex; },
/**
* When the focus index is set, we must manually send focus to the correct label
* @param {?} value
* @return {?}
*/
set: function (value) {
if (!this._isValidIndex(value) || this._focusIndex == value) {
return;
}
this._focusIndex = value;
this.indexFocused.emit(value);
this._setTabFocus(value);
},
enumerable: true,
configurable: true
});
/**
* Determines if an index is valid. If the tabs are not ready yet, we assume that the user is
* providing a valid index and return true.
* @param {?} index
* @return {?}
*/
MatTabHeader.prototype._isValidIndex = function (index) {
if (!this._labelWrappers) {
return true;
}
var /** @type {?} */ tab = this._labelWrappers ? this._labelWrappers.toArray()[index] : null;
return !!tab && !tab.disabled;
};
/**
* Sets focus on the HTML element for the label wrapper and scrolls it into the view if
* scrolling is enabled.
* @param {?} tabIndex
* @return {?}
*/
MatTabHeader.prototype._setTabFocus = function (tabIndex) {
if (this._showPaginationControls) {
this._scrollToLabel(tabIndex);
}
if (this._labelWrappers && this._labelWrappers.length) {
this._labelWrappers.toArray()[tabIndex].focus();
// Do not let the browser manage scrolling to focus the element, this will be handled
// by using translation. In LTR, the scroll left should be 0. In RTL, the scroll width
// should be the full width minus the offset width.
var /** @type {?} */ containerEl = this._tabListContainer.nativeElement;
var /** @type {?} */ dir = this._getLayoutDirection();
if (dir == 'ltr') {
containerEl.scrollLeft = 0;
}
else {
containerEl.scrollLeft = containerEl.scrollWidth - containerEl.offsetWidth;
}
}
};
/**
* Moves the focus towards the beginning or the end of the list depending on the offset provided.
* Valid offsets are 1 and -1.
* @param {?} offset
* @return {?}
*/
MatTabHeader.prototype._moveFocus = function (offset) {
if (this._labelWrappers) {
var /** @type {?} */ tabs = this._labelWrappers.toArray();
for (var /** @type {?} */ i = this.focusIndex + offset; i < tabs.length && i >= 0; i += offset) {
if (this._isValidIndex(i)) {
this.focusIndex = i;
return;
}
}
}
};
/**
* Increment the focus index by 1 until a valid tab is found.
* @return {?}
*/
MatTabHeader.prototype._focusNextTab = function () {
this._moveFocus(this._getLayoutDirection() == 'ltr' ? 1 : -1);
};
/**
* Decrement the focus index by 1 until a valid tab is found.
* @return {?}
*/
MatTabHeader.prototype._focusPreviousTab = function () {
this._moveFocus(this._getLayoutDirection() == 'ltr' ? -1 : 1);
};
/**
* The layout direction of the containing app.
* @return {?}
*/
MatTabHeader.prototype._getLayoutDirection = function () {
return this._dir && this._dir.value === 'rtl' ? 'rtl' : 'ltr';
};
/**
* Performs the CSS transformation on the tab list that will cause the list to scroll.
* @return {?}
*/
MatTabHeader.prototype._updateTabScrollPosition = function () {
var /** @type {?} */ scrollDistance = this.scrollDistance;
var /** @type {?} */ translateX = this._getLayoutDirection() === 'ltr' ? -scrollDistance : scrollDistance;
this._renderer.setStyle(this._tabList.nativeElement, 'transform', "translate3d(" + translateX + "px, 0, 0)");
};
Object.defineProperty(MatTabHeader.prototype, "scrollDistance", {
/**
* @return {?}
*/
get: function () { return this._scrollDistance; },
/**
* Sets the distance in pixels that the tab header should be transformed in the X-axis.
* @param {?} v
* @return {?}
*/
set: function (v) {
this._scrollDistance = Math.max(0, Math.min(this._getMaxScrollDistance(), v));
// Mark that the scroll distance has changed so that after the view is checked, the CSS
// transformation can move the header.
this._scrollDistanceChanged = true;
this._checkScrollingControls();
},
enumerable: true,
configurable: true
});
/**
* Moves the tab list in the 'before' or 'after' direction (towards the beginning of the list or
* the end of the list, respectively). The distance to scroll is computed to be a third of the
* length of the tab list view window.
*
* This is an expensive call that forces a layout reflow to compute box and scroll metrics and
* should be called sparingly.
* @param {?} scrollDir
* @return {?}
*/
MatTabHeader.prototype._scrollHeader = function (scrollDir) {
var /** @type {?} */ viewLength = this._tabListContainer.nativeElement.offsetWidth;
// Move the scroll distance one-third the length of the tab list's viewport.
this.scrollDistance += (scrollDir == 'before' ? -1 : 1) * viewLength / 3;
};
/**
* Moves the tab list such that the desired tab label (marked by index) is moved into view.
*
* This is an expensive call that forces a layout reflow to compute box and scroll metrics and
* should be called sparingly.
* @param {?} labelIndex
* @return {?}
*/
MatTabHeader.prototype._scrollToLabel = function (labelIndex) {
var /** @type {?} */ selectedLabel = this._labelWrappers ? this._labelWrappers.toArray()[labelIndex] : null;
if (!selectedLabel) {
return;
}
// The view length is the visible width of the tab labels.
var /** @type {?} */ viewLength = this._tabListContainer.nativeElement.offsetWidth;
var /** @type {?} */ labelBeforePos, /** @type {?} */ labelAfterPos;
if (this._getLayoutDirection() == 'ltr') {
labelBeforePos = selectedLabel.getOffsetLeft();
labelAfterPos = labelBeforePos + selectedLabel.getOffsetWidth();
}
else {
labelAfterPos = this._tabList.nativeElement.offsetWidth - selectedLabel.getOffsetLeft();
labelBeforePos = labelAfterPos - selectedLabel.getOffsetWidth();
}
var /** @type {?} */ beforeVisiblePos = this.scrollDistance;
var /** @type {?} */ afterVisiblePos = this.scrollDistance + viewLength;
if (labelBeforePos < beforeVisiblePos) {
// Scroll header to move label to the before direction
this.scrollDistance -= beforeVisiblePos - labelBeforePos + EXAGGERATED_OVERSCROLL;
}
else if (labelAfterPos > afterVisiblePos) {
// Scroll header to move label to the after direction
this.scrollDistance += labelAfterPos - afterVisiblePos + EXAGGERATED_OVERSCROLL;
}
};
/**
* Evaluate whether the pagination controls should be displayed. If the scroll width of the
* tab list is wider than the size of the header container, then the pagination controls should
* be shown.
*
* This is an expensive call that forces a layout reflow to compute box and scroll metrics and
* should be called sparingly.
* @return {?}
*/
MatTabHeader.prototype._checkPaginationEnabled = function () {
var /** @type {?} */ isEnabled = this._tabList.nativeElement.scrollWidth > this._elementRef.nativeElement.offsetWidth;
if (!isEnabled) {
this.scrollDistance = 0;
}
if (isEnabled !== this._showPaginationControls) {
this._changeDetectorRef.markForCheck();
}
this._showPaginationControls = isEnabled;
};
/**
* Evaluate whether the before and after controls should be enabled or disabled.
* If the header is at the beginning of the list (scroll distance is equal to 0) then disable the
* before button. If the header is at the end of the list (scroll distance is equal to the
* maximum distance we can scroll), then disable the after button.
*
* This is an expensive call that forces a layout reflow to compute box and scroll metrics and
* should be called sparingly.
* @return {?}
*/
MatTabHeader.prototype._checkScrollingControls = function () {
// Check if the pagination arrows should be activated.
this._disableScrollBefore = this.scrollDistance == 0;
this._disableScrollAfter = this.scrollDistance == this._getMaxScrollDistance();
this._changeDetectorRef.markForCheck();
};
/**
* Determines what is the maximum length in pixels that can be set for the scroll distance. This
* is equal to the difference in width between the tab list container and tab header container.
*
* This is an expensive call that forces a layout reflow to compute box and scroll metrics and
* should be called sparingly.
* @return {?}
*/
MatTabHeader.prototype._getMaxScrollDistance = function () {
var /** @type {?} */ lengthOfTabList = this._tabList.nativeElement.scrollWidth;
var /** @type {?} */ viewLength = this._tabListContainer.nativeElement.offsetWidth;
return (lengthOfTabList - viewLength) || 0;
};
/**
* Tells the ink-bar to align itself to the current label wrapper
* @return {?}
*/
MatTabHeader.prototype._alignInkBarToSelectedTab = function () {
var /** @type {?} */ selectedLabelWrapper = this._labelWrappers && this._labelWrappers.length ?
this._labelWrappers.toArray()[this.selectedIndex].elementRef.nativeElement :
null;
this._inkBar.alignToElement(selectedLabelWrapper);
};
MatTabHeader.decorators = [
{ type: Component, args: [{selector: 'mat-tab-header',
template: "<div class=\"mat-tab-header-pagination mat-tab-header-pagination-before mat-elevation-z4\" aria-hidden=\"true\" mat-ripple [matRippleDisabled]=\"_disableScrollBefore || disableRipple\" [class.mat-tab-header-pagination-disabled]=\"_disableScrollBefore\" (click)=\"_scrollHeader('before')\"><div class=\"mat-tab-header-pagination-chevron\"></div></div><div class=\"mat-tab-label-container\" #tabListContainer (keydown)=\"_handleKeydown($event)\"><div class=\"mat-tab-list\" #tabList role=\"tablist\" (cdkObserveContent)=\"_onContentChanges()\"><div class=\"mat-tab-labels\"><ng-content></ng-content></div><mat-ink-bar></mat-ink-bar></div></div><div class=\"mat-tab-header-pagination mat-tab-header-pagination-after mat-elevation-z4\" aria-hidden=\"true\" mat-ripple [matRippleDisabled]=\"_disableScrollAfter || disableRipple\" [class.mat-tab-header-pagination-disabled]=\"_disableScrollAfter\" (click)=\"_scrollHeader('after')\"><div class=\"mat-tab-header-pagination-chevron\"></div></div>",
styles: [".mat-tab-header{display:flex;overflow:hidden;position:relative;flex-shrink:0}.mat-tab-label{height:48px;padding:0 24px;cursor:pointer;box-sizing:border-box;opacity:.6;min-width:160px;text-align:center;display:inline-flex;justify-content:center;align-items:center;white-space:nowrap;position:relative}.mat-tab-label:focus{outline:0;opacity:1}.mat-tab-label.mat-tab-disabled{cursor:default;pointer-events:none}@media (max-width:600px){.mat-tab-label{min-width:72px}}.mat-ink-bar{position:absolute;bottom