Block normal mouse inputs in mouse-to-touchpad mode

shadow sniped my PR. :(

src/input/input_handler.cpp

@@ -777,6 +777,9 @@ void ActivateOutputsFromInputs() {
         it.ResetUpdate();
     }
 
+    // Check for input blockers
+    ApplyMouseInputBlockers();
+
     // Iterate over all inputs, and update their respecive outputs accordingly
     for (auto& it : connections) {
         it.output->AddUpdate(it.ProcessBinding());

src/input/input_mouse.cpp

@@ -6,6 +6,7 @@
 #include "common/assert.h"
 #include "common/types.h"
 #include "input/controller.h"
+#include "input/input_handler.h"
 #include "input_mouse.h"
 
 #include <common/singleton.h>
@@ -16,6 +17,8 @@ extern Frontend::WindowSDL* g_window;
 
 namespace Input {
 
+extern std::list<std::pair<InputEvent, bool>> pressed_keys;
+
 int mouse_joystick_binding = 0;
 float mouse_deadzone_offset = 0.5, mouse_speed = 1, mouse_speed_offset = 0.1250;
 bool mouse_gyro_roll_mode = false;
@@ -105,6 +108,22 @@ void EmulateTouchpad(GameController* controller, u32 interval) {
                             (mouse_buttons & SDL_BUTTON_RMASK) != 0);
 }
 
+void ApplyMouseInputBlockers() {
+    switch (mouse_mode) {
+    case MouseMode::Touchpad:
+        LOG_INFO(Input, "Blocking mouse inputs");
+        for (auto& k : pressed_keys) {
+            if (k.first.input.sdl_id == SDL_BUTTON_LEFT ||
+                k.first.input.sdl_id == SDL_BUTTON_RIGHT) {
+                k.second = true;
+            }
+        }
+        break;
+    default:
+        break;
+    }
+}
+
 Uint32 MousePolling(void* param, Uint32 id, Uint32 interval) {
     auto* controller = (GameController*)param;
     switch (mouse_mode) {

src/input/input_mouse.h

@@ -23,6 +23,8 @@ void SetMouseGyroRollMode(bool mode);
 void EmulateJoystick(GameController* controller, u32 interval);
 void EmulateGyro(GameController* controller, u32 interval);
 
+void ApplyMouseInputBlockers();
+
 // Polls the mouse for changes
 Uint32 MousePolling(void* param, Uint32 id, Uint32 interval);