In most cases, just plain old method invocations will do. If two Business-Modules are on the same level (like e.g. “H&V Controller” and “H&V Simulator” from the example in point 4), invoking a public class’ method is just fine. It doesn’t even have to be an interface, although in some cases that’s handy.
Виктория Кондратьева (Редактор отдела «Мир»)
。关于这个话题，Line官方版本下载提供了深入分析
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One of the limitations of having CSS inside Shadow DOM is that for some reason font-face doesn't work. For this, I had to parse the CSS and add the font declarations outside the Shadow DOM. They would be removed once tile gets unrendered.