27 void Window::visitLayers(const std::function<void(Layer*)>& visitor) {  in visitLayers()
35 bool Window::signalLayers(const std::function<bool(Layer*)>& visitor) {  in signalLayers()
45     this->visitLayers([](Layer* layer) { layer->onBackendCreated(); });  in onBackendCreated()  argument
49     return this->signalLayers([=](Layer* layer) { return layer->onChar(c, modifiers); });  in onChar()  argument
53     return this->signalLayers([=](Layer* layer) { return layer->onKey(key, state, modifiers); });  in onKey()  argument
57     return this->signalLayers([=](Layer* layer) { return layer->onMouse(x, y, state, modifiers); });  in onMouse()  argument
62             [=](Layer* layer) { return layer->onMouseWheel(delta, x, y, modifiers); });  in onMouseWheel()  argument
66     return this->signalLayers([=](Layer* layer) { return layer->onTouch(owner, state, x, y); });  in onTouch()  argument
70     return this->signalLayers([=](Layer* layer) { return layer->onFling(state); });  in onFling()  argument
74     return this->signalLayers([=](Layer* layer) { return layer->onPinch(state, scale, x, y); });  in onPinch()  argument
78     this->visitLayers([=](Layer* layer) { layer->onUIStateChanged(stateName, stateValue); });  in onUIStateChanged()  argument
98     this->visitLayers([](Layer* layer) { layer->onPrePaint(); });  in onPaint()  argument
99     this->visitLayers([=](Layer* layer) { layer->onPaint(backbuffer.get()); });  in onPaint()  argument
113     this->visitLayers([=](Layer* layer) { layer->onResize(w, h); });  in onResize()  argument