entry: Drop file event for GLFW.

examples/common/entry/entry_glfw.cpp

@@ -276,7 +276,7 @@ namespace entry
 	static void joystickCb(int _jid, int _action);
 
 	// Based on cutef8 by Jeff Bezanson (Public Domain)
-	static uint8_t encodeUTF8(uint8_t _chars[4], unsigned int _scancode)
+	static uint8_t encodeUTF8(uint8_t _chars[4], uint32_t _scancode)
 	{
 		uint8_t length = 0;
 
@@ -432,6 +432,7 @@ namespace entry
 			glfwSetCursorPosCallback(m_windows[0], cursorPosCb);
 			glfwSetMouseButtonCallback(m_windows[0], mouseButtonCb);
 			glfwSetWindowSizeCallback(m_windows[0], windowSizeCb);
+			glfwSetDropCallback(m_windows[0], dropFileCb);
 
 			glfwSetWindow(m_windows[0]);
 			m_eventQueue.postSizeEvent(handle, ENTRY_DEFAULT_WIDTH, ENTRY_DEFAULT_HEIGHT);
@@ -491,6 +492,7 @@ namespace entry
 							glfwSetCursorPosCallback(window, cursorPosCb);
 							glfwSetMouseButtonCallback(window, mouseButtonCb);
 							glfwSetWindowSizeCallback(window, windowSizeCb);
+							glfwSetDropCallback(window, dropFileCb);
 
 							m_windows[msg->m_handle.idx] = window;
 							m_eventQueue.postSizeEvent(msg->m_handle, msg->m_width, msg->m_height);
@@ -619,12 +621,13 @@ namespace entry
 			return invalid;
 		}
 
-		static void keyCb(GLFWwindow* _window, int _key, int _scancode, int _action, int _mods);
-		static void charCb(GLFWwindow* _window, unsigned int _scancode);
+		static void keyCb(GLFWwindow* _window, int32_t _key, int32_t _scancode, int32_t _action, int32_t _mods);
+		static void charCb(GLFWwindow* _window, uint32_t _scancode);
 		static void scrollCb(GLFWwindow* _window, double _dx, double _dy);
 		static void cursorPosCb(GLFWwindow* _window, double _mx, double _my);
-		static void mouseButtonCb(GLFWwindow* _window, int _button, int _action, int _mods);
-		static void windowSizeCb(GLFWwindow* _window, int _width, int _height);
+		static void mouseButtonCb(GLFWwindow* _window, int32_t _button, int32_t _action, int32_t _mods);
+		static void windowSizeCb(GLFWwindow* _window, int32_t _width, int32_t _height);
+		static void dropFileCb(GLFWwindow* _window, int32_t _count, const char** _filePaths);
 
 		MainThreadEntry m_mte;
 		bx::Thread m_thread;
@@ -649,7 +652,7 @@ namespace entry
 
 	Context s_ctx;
 
-	void Context::keyCb(GLFWwindow* _window, int _key, int _scancode, int _action, int _mods)
+	void Context::keyCb(GLFWwindow* _window, int32_t _key, int32_t _scancode, int32_t _action, int32_t _mods)
 	{
 		BX_UNUSED(_scancode);
 		if (_key == GLFW_KEY_UNKNOWN)
@@ -663,7 +666,7 @@ namespace entry
 		s_ctx.m_eventQueue.postKeyEvent(handle, key, mods, down);
 	}
 
-	void Context::charCb(GLFWwindow* _window, unsigned int _scancode)
+	void Context::charCb(GLFWwindow* _window, uint32_t _scancode)
 	{
 		WindowHandle handle = s_ctx.findHandle(_window);
 		uint8_t chars[4];
@@ -700,7 +703,7 @@ namespace entry
 			);
 	}
 
-	void Context::mouseButtonCb(GLFWwindow* _window, int _button, int _action, int _mods)
+	void Context::mouseButtonCb(GLFWwindow* _window, int32_t _button, int32_t _action, int32_t _mods)
 	{
 		BX_UNUSED(_mods);
 		WindowHandle handle = s_ctx.findHandle(_window);
@@ -716,12 +719,21 @@ namespace entry
 			);
 	}
 
-	void Context::windowSizeCb(GLFWwindow* _window, int _width, int _height)
+	void Context::windowSizeCb(GLFWwindow* _window, int32_t _width, int32_t _height)
 	{
 		WindowHandle handle = s_ctx.findHandle(_window);
 		s_ctx.m_eventQueue.postSizeEvent(handle, _width, _height);
 	}
 
+	void Context::dropFileCb(GLFWwindow* _window, int32_t _count, const char** _filePaths)
+	{
+		WindowHandle handle = s_ctx.findHandle(_window);
+		for (int32_t ii = 0; ii < _count; ++ii)
+		{
+			s_ctx.m_eventQueue.postDropFileEvent(handle, _filePaths[ii]);
+		}
+	}
+
 	static void joystickCb(int _jid, int _action)
 	{
 		if (_jid >= ENTRY_CONFIG_MAX_GAMEPADS)