When the user enters text in my textarea, my window changes color. I want that when it clicks outside the textarea, it replaces color as before.
<textarea class="chat-input"
id="textarea"
rows="2" cols="50"
(keyup)="detectTextarea($event)">
</textarea>
detectTextarea(event: any): any {
this.changeColor = true;
var textarea = document.getElementById("textarea");
}
/////////UPDATE//////////// It does not work :
detectTextarea(event: any): any {
var textarea = document.getElementById("textarea");
textarea.addEventListener("focus", function( event ) {
this.changeColor = true;
}, true);
textarea.addEventListener("blur", function( event ) {
this.changeColor = false;
}, true);
}
Change it like this:
<textarea class="chat-input"
id="textarea"
rows="2" cols="50"
(focus)="func()"
(blur)="otherFunc()"
(keyup)="detectTextarea($event)">
</textarea>
and then:
func() {
this.changeColor = true;
}
otherFunc() {
this.changeColor = false;
}
}
您可以收听blur
事件,以了解用户何时退出文本区域。
The technical post webpages of this site follow the CC BY-SA 4.0 protocol. If you need to reprint, please indicate the site URL or the original address.Any question please contact:yoyou2525@163.com.