LibGUI: Add parent window argument to FilePicker functions

Since FilePicker almost always should be modal, add the parent
window as mandatory first argument.

2 files changed, 2 insertions, 1 deletions

diff --git a/Applications/DisplaySettings/DisplaySettings.cpp b/Applications/DisplaySettings/DisplaySettings.cpp
index a77a9a66b5..5c26f7156c 100644
--- a/Applications/DisplaySettings/DisplaySettings.cpp
+++ b/Applications/DisplaySettings/DisplaySettings.cpp
@@ -152,7 +152,7 @@ void DisplaySettingsWidget::create_frame()
     button.set_size_policy(GUI::SizePolicy::Fixed, GUI::SizePolicy::Fixed);
     button.set_preferred_size(22, 22);
     button.on_click = [this](auto) {
-        Optional<String> open_path = GUI::FilePicker::get_open_filepath("Select wallpaper from file system.");
+        Optional<String> open_path = GUI::FilePicker::get_open_filepath(root_widget()->window(), "Select wallpaper from file system.");
 
         if (!open_path.has_value())
             return;
diff --git a/Applications/DisplaySettings/main.cpp b/Applications/DisplaySettings/main.cpp
index f125f1afdc..aa6a2c34ad 100644
--- a/Applications/DisplaySettings/main.cpp
+++ b/Applications/DisplaySettings/main.cpp
@@ -54,6 +54,7 @@ int main(int argc, char** argv)
     auto instance = DisplaySettingsWidget::construct();
 
     auto window = GUI::Window::construct();
+    dbg() << "main window: " << window;
     window->set_title("Display settings");
     window->move_to(100, 100);
     window->resize(360, 390);