Set gFocusedWidget only if Widget::onFocus() returns true, make

ModuleWidget respond to Backspace/Delete only if no widget is focused

include/widgets.hpp

@@ -112,7 +112,7 @@ struct Widget {
 	virtual void onMouseEnter() {}
 	/** Called when another widget begins responding to `onMouseMove` events */
 	virtual void onMouseLeave() {}
-	virtual void onFocus() {}
+	virtual bool onFocus() {return false;}
 	virtual void onDefocus() {}
 	virtual bool onFocusText(int codepoint) {return false;}
 	virtual bool onFocusKey(int key) {return false;}
@@ -409,7 +409,7 @@ struct TextField : OpaqueWidget {
 	Widget *onMouseDown(Vec pos, int button);
 	bool onFocusText(int codepoint);
 	bool onFocusKey(int scancode);
-	void onFocus();
+	bool onFocus();
 	void insertText(std::string newText);
 };
 

src/app/ModuleWidget.cpp

@@ -152,14 +152,16 @@ void ModuleWidget::draw(NVGcontext *vg) {
 }
 
 Widget *ModuleWidget::onMouseMove(Vec pos, Vec mouseRel) {
-	// Instead of checking key-down events, delete the module even if key-repeat hasn't fired yet and the cursor is hovering over the widget.
-	if (glfwGetKey(gWindow, GLFW_KEY_DELETE) == GLFW_PRESS || glfwGetKey(gWindow, GLFW_KEY_BACKSPACE) == GLFW_PRESS) {
-		if (!guiIsModPressed() && !guiIsShiftPressed()) {
-			gRackWidget->deleteModule(this);
-			this->finalizeEvents();
-			delete this;
-			// Kinda sketchy because events will be passed further down the tree
-			return NULL;
+	if (!gFocusedWidget) {
+		// Instead of checking key-down events, delete the module even if key-repeat hasn't fired yet and the cursor is hovering over the widget.
+		if (glfwGetKey(gWindow, GLFW_KEY_DELETE) == GLFW_PRESS || glfwGetKey(gWindow, GLFW_KEY_BACKSPACE) == GLFW_PRESS) {
+			if (!guiIsModPressed() && !guiIsShiftPressed()) {
+				gRackWidget->deleteModule(this);
+				this->finalizeEvents();
+				delete this;
+				// Kinda sketchy because events will be passed further down the tree
+				return NULL;
+			}
 		}
 	}
 	return OpaqueWidget::onMouseMove(pos, mouseRel);

src/gui.cpp

@@ -59,12 +59,16 @@ void mouseButtonCallback(GLFWwindow *window, int button, int action, int mods) {
 
 			if (w != gFocusedWidget) {
 				if (gFocusedWidget) {
+					// onDefocus
 					w->onDefocus();
 				}
+				gFocusedWidget = NULL;
 				if (w) {
-					w->onFocus();
+					// onFocus
+					if (w->onFocus()) {
+						gFocusedWidget = w;
+					}
 				}
-				gFocusedWidget = w;
 			}
 		}
 	}

src/widgets/TextField.cpp

@@ -103,9 +103,10 @@ bool TextField::onFocusKey(int key) {
 	return true;
 }
 
-void TextField::onFocus() {
+bool TextField::onFocus() {
 	begin = 0;
 	end = text.size();
+	return true;
 }
 
 void TextField::insertText(std::string newText) {