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@microsoft/windows-admin-center-sdk

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Microsoft - Windows Admin Center Shell

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import { __decorate, __metadata } from "tslib"; import { Directive, ElementRef, EventEmitter, HostBinding, HostListener, Injector, Input, Output, SecurityContext, TemplateRef } from '@angular/core'; import { DomSanitizer } from '@angular/platform-browser'; import { Debounce } from '@microsoft/windows-admin-center-sdk/core/base/decorators/debounce.decorators'; import { Dom } from '@microsoft/windows-admin-center-sdk/core/dom/dom'; import { SmeWebTelemetry } from '@microsoft/windows-admin-center-sdk/core/index'; import { decode } from 'html-entities'; import { CoreBaseComponent } from '../common/base.component'; import { TooltipShowMode } from './models/tooltip-options'; import { TooltipPlacementEnum } from './models/tooltip-placement'; import { TooltipHostInstance } from './tooltip-host-instance'; import { TooltipZoneDirective } from './tooltip-zone.directive'; import * as i0 from "@angular/core"; import * as i1 from "@angular/platform-browser"; export class ToolTipFocusEvent { } ToolTipFocusEvent.focusIn = 'focusin'; ToolTipFocusEvent.focusOut = 'focusout'; export class ToolTipMouseEvent { } ToolTipMouseEvent.mouseEnter = 'mouseenter'; ToolTipMouseEvent.mouseLeave = 'mouseleave'; /** * * @smeDoc {@label Tooltip @id sme-tooltip-directive} * * @overview * @file {@filepath ./examples/overview.md} * * @example {@label Basic Usage @id basic-usage} * @file {@filename component.html @filepath ./examples/basic-usage.component.html} * @file {@filename component.ts @filepath ./examples/tooltip-example.component.ts} * * @example {@label Custom Template @id custom-template} * @file {@filename component.html @filepath ./examples/template-reference.component.html} * @file {@filename component.ts @filepath ./examples/tooltip-example.component.ts} * * @example {@label Custom Implementation @id tooltip-zone} * @file {@filename component.html @filepath ./examples/tooltip-zone.component.html} */ /** * Directive to create tooltips in the tooltip host. */ export class TooltipDirective extends CoreBaseComponent { /** * Initializes a new instance of the @see PivotComponent class. * @param injector The angular injection service. required by @SmeInjectableBase() decorator in the base @see BaseComponent class */ constructor(elementRef, domSanitizer, injector) { super(injector); this.elementRef = elementRef; this.domSanitizer = domSanitizer; this.toolTipFocusEventTriggered = new EventEmitter(); this.toolTipMouseEventTriggered = new EventEmitter(); /** * Indicates when to explicitly not show the tooltip in cases where it needs to be shown only under certain conditions. */ this.smeTooltipShow = true; /** * Indicates if receiving hover and focus events. */ this.smeTooltipEnableEvents = false; /** * Indicates if hide the tooltip when inner HTML is the same as tooltip content * In certain cases, we always need the tooltip to show, such as the multi-tool component tool list. */ this.hideOnTooltipSameAsText = true; this.smeTooltipShowOn = MsftSme.applyBitwiseOr(TooltipShowMode.Hover, TooltipShowMode.KeyboardFocus); } /** * The source name to use for logging */ get logSourceName() { return 'TooltipDirective'; } /** * Sets the native tooltip property. * * This input is susceptible to XSS attacks, and is sanitized if necessary. * In cases the input is sanitized, the displayed tooltip to the user will only show the sanitized content. * This behavior (defense) is expected since users should not present XSS payloads in the [title] attribute. */ set title(input) { if (!MsftSme.isNullOrUndefined(input)) { // https://github.com/angular/angular/blob/main/packages/core/src/sanitization/html_sanitizer.ts const sanitizedInput = this.domSanitizer.sanitize(SecurityContext.HTML, input); // When sanitizing "safe" specialized inputs (e.g., localized inputs) // the DomSanitizer can return parts of the value as encoded, (e.g., 'olá' can be returned as 'ol&#225;'), // therefore, we compare the decoded values to see if any part of the input was actually sanitized and determine // what is displayed in the tooltip based on sanitation results. if (decode(sanitizedInput) !== decode(input)) { this.internalTitle = sanitizedInput; SmeWebTelemetry.traceAction(null, { content: { label: 'SecurityProtectionEvent', type: 'XSSPrevention' } }); } else { // Safe input this.internalTitle = input; } } } /** * Gets the native tooltip property. */ get title() { return this.internalTitle; } /** * Gets the id of the tooltip that will describe this element */ get ariaDescribedBy() { if (!this.shown || !MsftSme.isNullOrUndefined(this.smeTooltip) || !this.hideOnTooltipSameAsText) { return null; } return this.idBag && this.idBag.tooltip ? this.idBag.tooltip : null; } /** * The actual placement of the tooltip */ get placement() { return TooltipPlacementEnum.fromString(this.smeTooltipPlacement); } /** * The tooltip host */ get tooltipHost() { return TooltipHostInstance.activeHost; } /** * Indicates that tooltips should show on focus/hover. */ get showOnfocus() { return !!MsftSme.self().Resources.accessibilityMode; } /** * Indicates if the tooltip is being shown. */ get shown() { return this.tooltipHost.isShown(this.componentId); } /** * Indicates that this tooltip should show only when the text is truncated * We assume this is true if the title attribute is exactly the same as the text content of this node. */ get isTooltipSameAsText() { if (MsftSme.isNullOrUndefined(this.title)) { return false; } const nativehostElement = this.hostElement.nativeElement; return !!this.title && MsftSme.localeCompareIgnoreCase(String(this.title).trim(), nativehostElement.textContent.trim()) === 0; } /** * Indicates that this tooltip should be shown */ get shouldShow() { if (MsftSme.isNullOrWhiteSpace(this.title) && MsftSme.isNullOrUndefined(this.smeTooltip) || !this.smeTooltipShow) { return false; } if (MsftSme.applyBitwiseAnd(this.smeTooltipShowOn, TooltipShowMode.Click)) { // if we are hovered or our tooltip is hovered if (this.clicked) { return true; } // if we are shown and are focused or our tooltip if (this.shown && this.tooltipHost.isFocused) { return true; } } else if (MsftSme.applyBitwiseAnd(this.smeTooltipShowOn, (MsftSme.applyBitwiseOr(TooltipShowMode.Hover, TooltipShowMode.KeyboardFocus)))) { if (this.hideOnTooltipSameAsText && this.isTooltipSameAsText && !this.getIsTruncated()) { // Remove title attribute when true conditions are not met this.setAttribute('title', ''); return false; } // if we are hovered or our tooltip is hovered if (this.hovered || (this.shown && this.tooltipHost.isHovered)) { return true; } // if we show on focus and are focused or our tooltip has focus if (this.showOnfocus && (this.focused || (this.shown && this.tooltipHost.isFocused))) { return true; } } // Remove title attribute when true conditions are not met this.setAttribute('title', ''); return false; } /** * Implementation of angular OnInit interface */ ngOnInit() { if (this.tooltipZone) { this.tooltipZone.registerTooltipDirective(this); } // Set up observer if element can be disabled, watch for disabled changes if (this.elementRef && this.elementRef.nativeElement && // eslint-disable-next-line eqeqeq this.elementRef.nativeElement.disabled != null) { // We hide the tooltip if the element it is attached to becomes disabled this.observer = new MutationObserver(mutations => { mutations.forEach(mutation => { if (mutation.attributeName === 'disabled') { // Check if need to be hidden this.hide(); } }); }); const config = { attributes: true, childList: true, characterData: true }; this.observer.observe(this.elementRef.nativeElement, config); } } /** * Implementation of angular OnChanges interface * On any change we update the tooltip if it is shown */ ngOnChanges(changes) { super.ngOnChanges(changes); if (this.shown) { this.tooltipHost.update(this.getTooltipOptions()); } } /** * Implementation of angular OnDestroy interface */ ngOnDestroy() { super.ngOnDestroy(); this.showHideTooltip(false, false); if (this.tooltipZone) { this.tooltipZone.unregisterTooltipDirective(); } } /** * Creates the idBag used by this component to store unique element ids. * id values will be assigned be the @see BaseComponent super class. */ createIdBag() { return { tooltip: '' }; } /** * Host listeners for tooltip focus events */ onFocusEvent(event) { // on focus in/out change focused state const focused = event.type === ToolTipFocusEvent.focusIn || (this.focused && event.type !== ToolTipFocusEvent.focusOut); const lostClickFocus = this.clicked && event.type === ToolTipFocusEvent.focusOut; this.tooltipTrigger = this.clicked ? TooltipShowMode.Click : TooltipShowMode.KeyboardFocus; this.showHideTooltip(this.hovered, focused, lostClickFocus ? false : this.clicked); } /** * Host listeners for tooltip mouse events */ onMouseEvent(event) { if (MsftSme.applyBitwiseAnd(this.smeTooltipShowOn, TooltipShowMode.Hover)) { // on mouse enter/leave change hovered state const hovered = event.type === ToolTipMouseEvent.mouseEnter || (this.hovered && event.type !== ToolTipMouseEvent.mouseLeave); this.tooltipTrigger = TooltipShowMode.Hover; this.showHideTooltip(hovered, this.focused, this.clicked); } } /** * Host listeners for click and enter */ onClick(event) { if (MsftSme.applyBitwiseAnd(this.smeTooltipShowOn, TooltipShowMode.Click)) { this.showHideTooltip(this.hovered, this.focused, true); event.preventDefault(); event.stopPropagation(); } } /** * Shows or hides the tooltip if either the hover or focused states are true * @param hovered indicates the element is hovered * @param focused indicates the element is focused */ showHideTooltip(hovered = this.hovered, focused = this.focused, clicked = this.clicked) { // Only emits on status changed. if (this.smeTooltipEnableEvents) { if (focused !== this.focused) { focused ? this.toolTipFocusEventTriggered.emit(ToolTipFocusEvent.focusIn) : this.toolTipFocusEventTriggered.emit(ToolTipFocusEvent.focusOut); } if (hovered !== this.hovered) { hovered ? this.toolTipMouseEventTriggered.emit(ToolTipMouseEvent.mouseEnter) : this.toolTipMouseEventTriggered.emit(ToolTipMouseEvent.mouseLeave); } } this.hovered = hovered; this.focused = focused; this.clicked = clicked; if (this.shouldShow && !this.shown) { this.show(); } else if (!this.shouldShow && this.shown) { this.hide(); } } /** * Shows the tooltip. */ show(showOnShortCut = false, restoreFocusTo) { if ((this.shouldShow || showOnShortCut) && !this.shown) { // Explicitly set the tooltip to be read when using the shortcut, otherwise do not. this.tooltipHost.show(this.getTooltipOptions(restoreFocusTo, showOnShortCut)); } } /** * Hides the tooltip. */ hide() { if (this.shown && (!this.shouldShow || (this.elementRef.nativeElement && this.elementRef.nativeElement.disabled === true))) { // If it is showing and shouldn't be or if it is showing and disabled this.tooltipHost.hide(this.componentId); } } getTooltipOptions(restoreFocusTo, shouldRead) { return { targetid: this.componentId, contentId: this.idBag.tooltip, title: this.title, template: this.smeTooltip, context: this.smeTooltipContext, element: this.hostElement, restoreFocusTo: restoreFocusTo || document.activeElement, placement: this.placement, showOn: this.smeTooltipShowOn, shouldRead: shouldRead, onStateChanged: () => this.showHideTooltip(), onWindowClick: () => this.showHideTooltip(this.hovered, this.focused, this.clicked), triggeredFrom: this.tooltipTrigger }; } /** * Determines if the text node content is truncated. */ getIsTruncated() { const host = this.hostElement.nativeElement; const ellipsisParent = Dom.getAncestor(host, (e) => getComputedStyle(e).textOverflow === 'ellipsis'); if (!ellipsisParent) { return false; } const measureElement = document.createElement('span'); // position element off screen measureElement.style.display = 'inline'; measureElement.style.width = 'auto'; measureElement.style.visibility = 'hidden'; measureElement.style.position = 'absolute'; measureElement.style.right = '-10000px'; measureElement.style.bottom = '-10000px'; measureElement.innerHTML = host.textContent; // use same font as host element const hostStyle = getComputedStyle(host); const ellipsesParentStyle = getComputedStyle(ellipsisParent); measureElement.style.fontFamily = hostStyle.fontFamily; measureElement.style.fontVariant = hostStyle.fontVariant; measureElement.style.fontSize = hostStyle.fontSize; measureElement.style.fontStyle = hostStyle.fontStyle; measureElement.style.fontWeight = hostStyle.fontWeight; measureElement.style.lineHeight = hostStyle.lineHeight; measureElement.style.letterSpacing = hostStyle.letterSpacing; measureElement.style.padding = ellipsesParentStyle.padding; // append the measure element to the dom and compare width with the ellipsisParent document.body.append(measureElement); const ellipsesParentWidth = ellipsisParent.getBoundingClientRect().width; const measureWidth = measureElement.getBoundingClientRect().width; const isTruncated = ellipsesParentWidth < measureWidth; measureElement.remove(); // this logging is to verbose, but useful for debugging. // Logging.logDebug( // this.logSourceName, // `Truncation Calculated: ${isTruncated}`, // { // ellipsesParentWidth: ellipsesParentWidth, // measureWidth: measureWidth // } // ); return isTruncated; } } /** @nocollapse */ TooltipDirective.ɵfac = function TooltipDirective_Factory(t) { return new (t || TooltipDirective)(i0.ɵɵdirectiveInject(i0.ElementRef), i0.ɵɵdirectiveInject(i1.DomSanitizer), i0.ɵɵdirectiveInject(i0.Injector)); }; /** @nocollapse */ TooltipDirective.ɵdir = /** @pureOrBreakMyCode */ i0.ɵɵdefineDirective({ type: TooltipDirective, selectors: [["", "smeTooltip", ""], ["", "title", ""]], hostVars: 1, hostBindings: function TooltipDirective_HostBindings(rf, ctx) { if (rf & 1) { i0.ɵɵlistener("focusin", function TooltipDirective_focusin_HostBindingHandler($event) { return ctx.onFocusEvent($event); })("focusout", function TooltipDirective_focusout_HostBindingHandler($event) { return ctx.onFocusEvent($event); })("mouseenter", function TooltipDirective_mouseenter_HostBindingHandler($event) { return ctx.onMouseEvent($event); })("mouseleave", function TooltipDirective_mouseleave_HostBindingHandler($event) { return ctx.onMouseEvent($event); })("click", function TooltipDirective_click_HostBindingHandler($event) { return ctx.onClick($event); })("keydown.enter", function TooltipDirective_keydown_enter_HostBindingHandler($event) { return ctx.onClick($event); })("keydown.space", function TooltipDirective_keydown_space_HostBindingHandler($event) { return ctx.onClick($event); }); } if (rf & 2) { i0.ɵɵattribute("aria-describedBy", ctx.ariaDescribedBy); } }, inputs: { title: "title", smeTooltip: "smeTooltip", smeTooltipContext: "smeTooltipContext", smeTooltipPlacement: "smeTooltipPlacement", smeTooltipShowOn: "smeTooltipShowOn", smeTooltipShow: "smeTooltipShow", smeTooltipEnableEvents: "smeTooltipEnableEvents", hideOnTooltipSameAsText: "hideOnTooltipSameAsText", tooltipZone: "tooltipZone" }, outputs: { toolTipFocusEventTriggered: "toolTipFocusEventTriggered", toolTipMouseEventTriggered: "toolTipMouseEventTriggered" }, features: [i0.ɵɵInheritDefinitionFeature, i0.ɵɵNgOnChangesFeature] }); __decorate([ Debounce(), __metadata("design:type", Function), __metadata("design:paramtypes", [Boolean, HTMLElement]), __metadata("design:returntype", void 0) ], TooltipDirective.prototype, "show", null); __decorate([ Debounce(), __metadata("design:type", Function), __metadata("design:paramtypes", []), __metadata("design:returntype", void 0) ], TooltipDirective.prototype, "hide", null); (function () { (typeof ngDevMode === "undefined" || ngDevMode) && i0.ɵsetClassMetadata(TooltipDirective, [{ type: Directive, args: [{ selector: '[smeTooltip],[title]' }] }], function () { return [{ type: i0.ElementRef }, { type: i1.DomSanitizer }, { type: i0.Injector }]; }, { toolTipFocusEventTriggered: [{ type: Output }], toolTipMouseEventTriggered: [{ type: Output }], title: [{ type: Input }], smeTooltip: [{ type: Input }], smeTooltipContext: [{ type: Input }], smeTooltipPlacement: [{ type: Input }], smeTooltipShowOn: [{ type: Input }], smeTooltipShow: [{ type: Input }], smeTooltipEnableEvents: [{ type: Input }], hideOnTooltipSameAsText: [{ type: Input }], tooltipZone: [{ type: Input }], ariaDescribedBy: [{ type: HostBinding, args: ['attr.aria-describedBy'] }], onFocusEvent: [{ type: HostListener, args: [ToolTipFocusEvent.focusIn, ['$event']] }, { type: HostListener, args: [ToolTipFocusEvent.focusOut, ['$event']] }], onMouseEvent: [{ type: HostListener, args: [ToolTipMouseEvent.mouseEnter, ['$event']] }, { type: HostListener, args: [ToolTipMouseEvent.mouseLeave, ['$event']] }], onClick: [{ type: HostListener, args: ['click', ['$event']] }, { type: HostListener, args: ['keydown.enter', ['$event']] }, { type: HostListener, args: ['keydown.space', ['$event']] }], show: [], hide: [] }); })(); //# 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{\r\n    Directive,\r\n    ElementRef,\r\n    EventEmitter,\r\n    HostBinding,\r\n    HostListener,\r\n    Injector,\r\n    Input,\r\n    OnChanges,\r\n    OnDestroy,\r\n    OnInit,\r\n    Output,\r\n    SecurityContext,\r\n    SimpleChanges,\r\n    TemplateRef\r\n} from '@angular/core';\r\nimport { DomSanitizer } from '@angular/platform-browser';\r\nimport { Debounce } from '@microsoft/windows-admin-center-sdk/core/base/decorators/debounce.decorators';\r\nimport { Dom } from '@microsoft/windows-admin-center-sdk/core/dom/dom';\r\nimport { SmeWebTelemetry } from '@microsoft/windows-admin-center-sdk/core/index';\r\nimport { decode } from 'html-entities';\r\nimport { CoreBaseComponent } from '../common/base.component';\r\nimport { TooltipHost } from './models/tooltip-host';\r\nimport { TooltipOptions, TooltipShowMode } from './models/tooltip-options';\r\nimport { TooltipPlacement, TooltipPlacementEnum } from './models/tooltip-placement';\r\nimport { TooltipHostInstance } from './tooltip-host-instance';\r\nimport { TooltipZoneDirective } from './tooltip-zone.directive';\r\n\r\nexport class ToolTipFocusEvent {\r\n    static focusIn = 'focusin';\r\n    static focusOut = 'focusout';\r\n}\r\n\r\nexport class ToolTipMouseEvent {\r\n    static mouseEnter = 'mouseenter';\r\n    static mouseLeave = 'mouseleave';\r\n}\r\n\r\n/**\r\n *\r\n * @smeDoc {@label Tooltip @id sme-tooltip-directive}\r\n *\r\n * @overview\r\n * @file {@filepath ./examples/overview.md}\r\n *\r\n * @example {@label Basic Usage @id basic-usage}\r\n * @file {@filename component.html @filepath ./examples/basic-usage.component.html}\r\n * @file {@filename component.ts @filepath ./examples/tooltip-example.component.ts}\r\n *\r\n * @example {@label Custom Template @id custom-template}\r\n * @file {@filename component.html @filepath ./examples/template-reference.component.html}\r\n * @file {@filename component.ts @filepath ./examples/tooltip-example.component.ts}\r\n *\r\n * @example {@label Custom Implementation @id tooltip-zone}\r\n * @file {@filename component.html @filepath ./examples/tooltip-zone.component.html}\r\n */\r\n\r\n/**\r\n * Directive to create tooltips in the tooltip host.\r\n */\r\n@Directive({\r\n    selector: '[smeTooltip],[title]'\r\n})\r\nexport class TooltipDirective extends CoreBaseComponent implements OnDestroy, OnChanges, OnInit {\r\n\r\n    /**\r\n     * The source name to use for logging\r\n     */\r\n    protected get logSourceName() {\r\n        return 'TooltipDirective';\r\n    }\r\n\r\n    @Output() public toolTipFocusEventTriggered: EventEmitter<ToolTipFocusEvent> = new EventEmitter<ToolTipFocusEvent>();\r\n    @Output() public toolTipMouseEventTriggered: EventEmitter<ToolTipMouseEvent> = new EventEmitter<ToolTipMouseEvent>();\r\n\r\n    private internalTitle: string;\r\n\r\n    /**\r\n     * Sets the native tooltip property.\r\n     *\r\n     * This input is susceptible to XSS attacks, and is sanitized if necessary.\r\n     * In cases the input is sanitized, the displayed tooltip to the user will only show the sanitized content.\r\n     * This behavior (defense) is expected since users should not present XSS payloads in the [title] attribute.\r\n     */\r\n    @Input()\r\n    public set title(input: string) {\r\n        if (!MsftSme.isNullOrUndefined(input)) {\r\n            // https://github.com/angular/angular/blob/main/packages/core/src/sanitization/html_sanitizer.ts\r\n            const sanitizedInput = this.domSanitizer.sanitize(SecurityContext.HTML, input);\r\n\r\n            // When sanitizing \"safe\" specialized inputs (e.g., localized inputs)\r\n            // the DomSanitizer can return parts of the value as encoded, (e.g., 'olá' can be returned as 'ol&#225;'),\r\n            // therefore, we compare the decoded values to see if any part of the input was actually sanitized and determine\r\n            // what is displayed in the tooltip based on sanitation results.\r\n            if (decode(sanitizedInput) !== decode(input)) {\r\n                this.internalTitle = sanitizedInput;\r\n\r\n                SmeWebTelemetry.traceAction(\r\n                    null,\r\n                    {\r\n                        content: {\r\n                            label: 'SecurityProtectionEvent',\r\n                            type: 'XSSPrevention'\r\n                        }\r\n                    });\r\n            } else {\r\n                // Safe input\r\n                this.internalTitle = input;\r\n            }\r\n        }\r\n    }\r\n\r\n    /**\r\n     * Gets the native tooltip property.\r\n     */\r\n    public get title(): string {\r\n        return this.internalTitle;\r\n    }\r\n\r\n    /**\r\n     * A template reference for a custom tooltip.\r\n     */\r\n    @Input()\r\n    public smeTooltip: TemplateRef<any>;\r\n\r\n    /**\r\n     * A data object that can be accessed in a template reference for a custom tooltip.\r\n     */\r\n    @Input()\r\n    public smeTooltipContext: any;\r\n\r\n    /**\r\n     * The input for the placement of the tooltip. Defaults to 'bottom'.\r\n     */\r\n    @Input()\r\n    public smeTooltipPlacement: string;\r\n\r\n    /**\r\n     * Indicates when to show the tooltip.\r\n     */\r\n    @Input()\r\n    public smeTooltipShowOn: TooltipShowMode;\r\n\r\n    /**\r\n     * Indicates when to explicitly not show the tooltip in cases where it needs to be shown only under certain conditions.\r\n     */\r\n    @Input()\r\n    public smeTooltipShow = true;\r\n\r\n    /**\r\n     * Indicates if receiving hover and focus events.\r\n     */\r\n    @Input()\r\n    public smeTooltipEnableEvents = false;\r\n\r\n    /**\r\n     * Indicates if hide the tooltip when inner HTML is the same as tooltip content\r\n     * In certain cases, we always need the tooltip to show, such as the multi-tool component tool list.\r\n     */\r\n    @Input()\r\n    public hideOnTooltipSameAsText = true;\r\n\r\n    /**\r\n     * The defined zone for showing tooltip with a shortcut. The zone is a wrapper for the content that is relevant to the tooltip.\r\n     */\r\n    @Input()\r\n    public tooltipZone: TooltipZoneDirective;\r\n\r\n    /**\r\n     * Gets the id of the tooltip that will describe this element\r\n     */\r\n    @HostBinding('attr.aria-describedBy')\r\n    public get ariaDescribedBy(): string {\r\n        if (!this.shown || !MsftSme.isNullOrUndefined(this.smeTooltip) || !this.hideOnTooltipSameAsText) {\r\n            return null;\r\n        }\r\n        return this.idBag && this.idBag.tooltip ? this.idBag.tooltip : null;\r\n    }\r\n\r\n    /**\r\n     * The actual placement of the tooltip\r\n     */\r\n    private get placement(): TooltipPlacement {\r\n        return TooltipPlacementEnum.fromString(this.smeTooltipPlacement);\r\n    }\r\n\r\n    /**\r\n     * The tooltip host\r\n     */\r\n    private get tooltipHost(): TooltipHost {\r\n        return TooltipHostInstance.activeHost;\r\n    }\r\n\r\n    /**\r\n     * Indicates that tooltips should show on focus/hover.\r\n     */\r\n    public get showOnfocus() {\r\n        return !!MsftSme.self().Resources.accessibilityMode;\r\n    }\r\n\r\n    /**\r\n     * Internal placeholder for the current focused state\r\n     */\r\n    private focused: boolean;\r\n\r\n    /**\r\n     * Internal placeholder for the current clicked state\r\n     */\r\n    private clicked: boolean;\r\n\r\n    /**\r\n     * Internal placeholder for the current hovered state\r\n     */\r\n    private hovered: boolean;\r\n\r\n    /**\r\n     * Internal mutation observer used to watch for disabled attribute on elements\r\n     */\r\n    private observer: MutationObserver;\r\n\r\n    /**\r\n     * Internal placeholder for tooltip triggering cause (click, hover, focus)\r\n     */\r\n    private tooltipTrigger: TooltipShowMode;\r\n\r\n    /**\r\n     * Indicates if the tooltip is being shown.\r\n     */\r\n    public get shown(): boolean {\r\n        return this.tooltipHost.isShown(this.componentId);\r\n    }\r\n\r\n    /**\r\n     * Indicates that this tooltip should show only when the text is truncated\r\n     * We assume this is true if the title attribute is exactly the same as the text content of this node.\r\n     */\r\n    private get isTooltipSameAsText(): boolean {\r\n        if (MsftSme.isNullOrUndefined(this.title)) {\r\n            return false;\r\n        }\r\n\r\n        const nativehostElement = <HTMLElement>this.hostElement.nativeElement;\r\n        return !!this.title && MsftSme.localeCompareIgnoreCase(\r\n            String(this.title).trim(), nativehostElement.textContent.trim()) === 0;\r\n    }\r\n\r\n    /**\r\n     * Indicates that this tooltip should be shown\r\n     */\r\n    private get shouldShow() {\r\n        if (MsftSme.isNullOrWhiteSpace(this.title)\r\n            && MsftSme.isNullOrUndefined(this.smeTooltip) || !this.smeTooltipShow) {\r\n            return false;\r\n        }\r\n\r\n        if (MsftSme.applyBitwiseAnd(this.smeTooltipShowOn, TooltipShowMode.Click)) {\r\n            // if we are hovered or our tooltip is hovered\r\n            if (this.clicked) {\r\n                return true;\r\n            }\r\n\r\n            // if we are shown and are focused or our tooltip\r\n            if (this.shown && this.tooltipHost.isFocused) {\r\n                return true;\r\n            }\r\n        } else if (MsftSme.applyBitwiseAnd(this.smeTooltipShowOn,\r\n            (MsftSme.applyBitwiseOr(TooltipShowMode.Hover, TooltipShowMode.KeyboardFocus)))) {\r\n            if (this.hideOnTooltipSameAsText && this.isTooltipSameAsText && !this.getIsTruncated()) {\r\n\r\n                // Remove title attribute when true conditions are not met\r\n                this.setAttribute('title', '');\r\n                return false;\r\n            }\r\n\r\n            // if we are hovered or our tooltip is hovered\r\n            if (this.hovered || (this.shown && this.tooltipHost.isHovered)) {\r\n                return true;\r\n            }\r\n\r\n            // if we show on focus and are focused or our tooltip has focus\r\n            if (this.showOnfocus && (this.focused || (this.shown && this.tooltipHost.isFocused))) {\r\n                return true;\r\n            }\r\n        }\r\n\r\n        // Remove title attribute when true conditions are not met\r\n        this.setAttribute('title', '');\r\n        return false;\r\n    }\r\n\r\n    /**\r\n     * Initializes a new instance of the @see PivotComponent class.\r\n     * @param injector The angular injection service. required by @SmeInjectableBase() decorator in the base @see BaseComponent class\r\n     */\r\n    constructor(private elementRef: ElementRef, private domSanitizer: DomSanitizer, injector: Injector) {\r\n        super(injector)