Inject Windows platform services

src/main.cpp

@@ -5,6 +5,7 @@
 #include "texture.h"
 #include "image.h"
 #include "app.h"
+#include "platform_api/platform_services.h"
 #include "canvas.h"
 #include "keymap.h"
 #include "hmd.h"
@@ -351,6 +352,104 @@ std::string win32_open_dir()
     return Buffer;
 }
 
+namespace {
+
+void invoke_selected_path(
+    const std::string& path,
+    const pp::platform::PickedPathCallback& callback)
+{
+    if (!path.empty())
+        callback(path);
+}
+
+std::string build_supported_files_filter(const std::vector<std::string>& types)
+{
+    std::string filter = "Supported Files (";
+    bool first_type = true;
+    for (const auto& t : types)
+    {
+        filter.append(std::string(first_type ? "" : " ,") + "*." + t);
+        first_type = false;
+    }
+    filter.append(")");
+    filter.push_back(0);
+    first_type = true;
+    for (const auto& t : types)
+    {
+        filter.append(std::string(first_type ? "" : ";") + "*." + t);
+        first_type = false;
+    }
+    filter.push_back(0);
+    return filter;
+}
+
+class WindowsPlatformServices final : public pp::platform::PlatformServices {
+public:
+    [[nodiscard]] std::string clipboard_text() override
+    {
+        return win32_clipboard_get_text();
+    }
+
+    [[nodiscard]] bool set_clipboard_text(std::string_view text) override
+    {
+        return win32_clipboard_set_text(std::string(text));
+    }
+
+    void set_cursor_visible(bool visible) override
+    {
+        win32_show_cursor(visible);
+    }
+
+    void set_virtual_keyboard_visible(bool visible) override
+    {
+        (void)visible;
+    }
+
+    void display_file(std::string_view path) override
+    {
+        (void)path;
+    }
+
+    void share_file(std::string_view path) override
+    {
+        (void)path;
+    }
+
+    void pick_image(pp::platform::PickedPathCallback callback) override
+    {
+        const std::string path = win32_open_file("Image Files (*.jpg, *.png)\0*.jpg;*.png");
+        invoke_selected_path(path, callback);
+    }
+
+    void pick_file(std::vector<std::string> file_types, pp::platform::PickedPathCallback callback) override
+    {
+        const std::string filter = build_supported_files_filter(file_types);
+        const std::string path = win32_open_file(filter.c_str());
+        invoke_selected_path(path, callback);
+    }
+
+    void pick_save_file(std::vector<std::string> file_types, pp::platform::PickedPathCallback callback) override
+    {
+        const std::string filter = build_supported_files_filter(file_types);
+        const std::string path = win32_save_file(filter.c_str());
+        invoke_selected_path(path, callback);
+    }
+
+    void pick_directory(pp::platform::PickedPathCallback callback) override
+    {
+        const std::string path = win32_open_dir();
+        invoke_selected_path(path, callback);
+    }
+};
+
+[[nodiscard]] WindowsPlatformServices& windows_platform_services()
+{
+    static WindowsPlatformServices services;
+    return services;
+}
+
+}
+
 int read_WMI_info()
 {
     // see: http://win32easy.blogspot.co.uk/2011/03/wmi-in-c-query-everyting-from-your-os.html
@@ -841,6 +940,7 @@ int main(int argc, char** argv)
     PIXELFORMATDESCRIPTOR pfd;
 
     App::I = new App();
+    App::I->set_platform_services(&windows_platform_services());
     App::I->initLog();
     
     init_shcore_API();