Method _handleMouseUp

systemvm/agent/noVNC/core/util/cursor.js:160–189

(event)

    }

    _handleMouseUp(event) {
        // We might get this event because of a drag operation that
        // moved outside of the target. Check what's under the cursor
        // now and adjust visibility based on that.
        let target = document.elementFromPoint(event.clientX, event.clientY);
        this._updateVisibility(target);

        // Captures end with a mouseup but we can't know the event order of
        // mouseup vs releaseCapture.
        //
        // In the cases when releaseCapture comes first, the code above is
        // enough.
        //
        // In the cases when the mouseup comes first, we need wait for the
        // browser to flush all events and then check again if the cursor
        // should be visible.
        if (this._captureIsActive()) {
            window.setTimeout(() => {
                // We might have detached at this point
                if (!this._target) {
                    return;
                }
                // Refresh the target from elementFromPoint since queued events
                // might have altered the DOM
                target = document.elementFromPoint(event.clientX,
                                                   event.clientY);
                this._updateVisibility(target);
            }, 0);
        }
    }

    _showCursor() {
        if (this._canvas.style.visibility === 'hidden') {