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fix(tooltip): ensure tooltip never passes undefined message to (#7018)

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AriaDescriber
This commit is contained in:
mmalerba
2017-09-12 10:58:14 -07:00
committed by GitHub
parent 50a6bb7796
commit f6d1078e54
1 changed files with 3 additions and 5 deletions
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src/lib/tooltip/tooltip.ts
+3 -5
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@@ -142,17 +142,15 @@ export class MdTooltip implements OnDestroy {
/** The default delay in ms before hiding the tooltip after hide is called */
@Input('mdTooltipHideDelay') hideDelay = 0;
private _message: string;
private _message = '';
/** The message to be displayed in the tooltip */
@Input('mdTooltip') get message() { return this._message; }
set message(value: string) {
if (this._message) {
this._ariaDescriber.removeDescription(this._elementRef.nativeElement, this._message);
}
this._ariaDescriber.removeDescription(this._elementRef.nativeElement, this._message);
// If the message is not a string (e.g. number), convert it to a string and trim it.
this._message = value ? `${value}`.trim() : '';
this._message = value ? value.trim() : '';
this._updateTooltipMessage();
this._ariaDescriber.describe(this._elementRef.nativeElement, this.message);
}