Method focus

src/keyboard/textinput.js:778–815

()

    }

    focus() {
        // On focusing on the textarea, read active row number to assistive tech.
        this.setAriaOptions({
            setLabel: this.host.renderer.enableKeyboardAccessibility
        });

        if (this.tempStyle || HAS_FOCUS_ARGS || this.$focusScroll == "browser") return this.text.focus(
            {preventScroll: true});

        var top = this.text.style.top;
        this.text.style.position = "fixed";
        this.text.style.top = "0px";
        try {
            var isTransformed = this.text.getBoundingClientRect().top != 0;
        } catch (e) {
            // getBoundingClientRect on IE throws error if element is not in the dom tree
            return;
        }
        var ancestors = [];
        if (isTransformed) {
            var t = this.text.parentElement;
            while (t && t.nodeType == 1) {
                ancestors.push(t);
                t.setAttribute("ace_nocontext", "true");
                if (!t.parentElement && t.getRootNode) t = t.getRootNode()["host"]; else t = t.parentElement;
            }
        }
        this.text.focus({preventScroll: true});
        if (isTransformed) {
            ancestors.forEach(function (p) {
                p.removeAttribute("ace_nocontext");
            });
        }
        setTimeout(() => {
            this.text.style.position = "";
            if (this.text.style.top == "0px") this.text.style.top = top;
        }, 0);
    }

    blur() {
        this.text.blur();