Add portal support and update .gitignore

.gitignore

@@ -1,12 +1,9 @@
 assets/*.h
 build*
 .vscode
-subprojects/*/
 .cache
 compile_commands.json
-!subprojects/SDL-Mixer-X/
-!subprojects/jsoncpp/
 .flatpak-builder
 flatpak-repo
 *.flatpak
-!build-file.sh
+!build*.sh

file_browser.cpp

@@ -0,0 +1,175 @@
+#include "file_browser.h"
+#include "imfilebrowser.h"
+
+
+FileBrowser::FileBrowser(bool save) {
+    #ifdef PORTALS
+    g_set_application_name("Neko Player");
+    main_context = g_main_context_default();
+    main_loop = g_main_loop_new(main_context, true);
+    portal = xdp_portal_new();
+    type = g_variant_type_new("a(sa(us))");
+    inner_filter_type = g_variant_type_new("a(us)");
+    #endif
+    this->save = save;
+    fallback = ImGui::FileBrowser(save ? ImGuiFileBrowserFlags_CreateNewDir|ImGuiFileBrowserFlags_EnterNewFilename : 0);
+}
+void FileBrowser::SetTypeFilters(string name, vector<string> filters) {
+    filter_name = name;
+    this->filters = filters;
+    #ifdef PORTALS
+    if (variant != NULL) {
+        g_variant_unref(variant);
+    }
+    GVariantBuilder builder;
+    GVariantBuilder inner_filter_builder;
+    g_variant_builder_init(&builder, type);
+    g_variant_builder_init(&inner_filter_builder, inner_filter_type);
+    GVariant *name_variant = g_variant_new_string((const gchar*)name.c_str());
+    for (auto filter : filters) {
+        GVariant *id = g_variant_new_uint32(0);
+        GVariant *filter_variant = g_variant_new_string((const gchar*)(string("*") + filter).c_str());
+        GVariant **filter_children = new GVariant*[2] {id, filter_variant};
+        GVariant *filter_tuple = g_variant_new_tuple(filter_children, 2);
+        g_variant_builder_add_value(&inner_filter_builder, filter_tuple);
+    }
+    GVariant *inner_filters = g_variant_builder_end(&inner_filter_builder);
+    GVariant **outer_filter_children = new GVariant*[2] {name_variant, inner_filters};
+    GVariant *outer_filter_tuple = g_variant_new_tuple(outer_filter_children, 2);
+    g_variant_builder_add_value(&builder, outer_filter_tuple);
+    variant = g_variant_builder_end(&builder);
+    g_variant_ref(variant);
+    #endif
+    fallback.SetTypeFilters(filters);
+}
+void FileBrowser::SetPwd(path path) {
+    pwd = path;
+    #ifndef PORTALS
+    fallback.SetPwd(path);
+    #endif
+}
+bool FileBrowser::HasSelected() {
+    #ifdef PORTALS
+    return selected.has_value();
+    #else
+    return fallback.HasSelected();
+    #endif
+}
+path FileBrowser::GetSelected() {
+    #ifdef PORTALS
+    return selected.value_or(path());
+    #else
+    return fallback.GetSelected();
+    #endif
+}
+void FileBrowser::SetWindowSize(int w, int h) {
+    fallback.SetWindowSize(w, h);
+}
+void FileBrowser::SetWindowPos(int x, int y) {
+    fallback.SetWindowPos(x, y);
+}
+void FileBrowser::Open() {
+    #ifdef PORTALS
+    open = true;
+    if (save) {
+        xdp_portal_save_file(portal, NULL, title.c_str(), "", pwd.c_str(), "", variant, NULL, NULL, XDP_SAVE_FILE_FLAG_NONE, NULL, &FileBrowser::FileBrowserSaveCallback, this);
+    } else {
+        xdp_portal_open_file(portal, NULL, title.c_str(), variant, NULL, NULL, XDP_OPEN_FILE_FLAG_NONE, NULL, &FileBrowser::FileBrowserOpenCallback, this);
+    }
+    #else
+    fallback.Open();
+    #endif
+}
+#ifdef PORTALS
+void FileBrowser::FileBrowserOpenCallback(GObject *src, GAsyncResult *res, gpointer data) {
+    (void)src;
+    FileBrowser *self = (FileBrowser*)data;
+    GVariant *variant = xdp_portal_open_file_finish(self->portal, res, NULL);
+    if (variant == NULL) {
+        printf("Cancelled.\n");
+        return;
+    }
+    GVariant *uris = g_variant_lookup_value(variant, "uris", G_VARIANT_TYPE_STRING_ARRAY);
+    GVariant *first_uri = g_variant_get_child_value(uris, 0);
+    gsize length;
+    const gchar* c_str_without_terminater = g_variant_get_string(first_uri, &length);
+    vector<char> c_str_vec;
+    c_str_vec.reserve(length + 1);
+    for (gsize i = 0; i < length; i++) {
+        c_str_vec.push_back(c_str_without_terminater[i]);
+    }
+    c_str_vec.push_back('\0');
+    const char *c_str = c_str_vec.data();
+    printf("Selected file %s\n", c_str);
+    string str = c_str;
+    if (str.starts_with("file://")) {
+        str = str.substr(string("file://").length());
+    }
+    self->open = false;
+    self->selected = path(str);
+}
+
+void FileBrowser::FileBrowserSaveCallback(GObject *src, GAsyncResult *res, gpointer data) {
+    (void)src;
+    FileBrowser *self = (FileBrowser*)data;
+    self->open = false;
+    GVariant *variant = xdp_portal_save_file_finish(self->portal, res, NULL);
+    if (variant == NULL) {
+        printf("Variant was null.\n");
+        return;
+    }
+    GVariant *first_index = g_variant_get_child_value(variant, 0);
+    if (first_index == NULL) {
+        printf("Variant had no first index.\n");
+        return;
+    }
+    const char *c_str = (const char*)g_variant_get_bytestring(first_index);
+    string str = c_str;
+    if (str.starts_with("file://")) {
+        str = str.substr(string("file://").length());
+    }
+    self->selected = path(str);
+}
+#endif
+
+void FileBrowser::Display() {
+    #ifdef PORTALS
+    g_main_context_iteration(main_context, false);
+    #else
+    fallback.Display()
+    #endif
+}
+
+void FileBrowser::ClearSelected() {
+    selected = optional<path>();
+    #ifndef PORTALS
+    fallback.ClearSelected();
+    #endif
+}
+void FileBrowser::SetTitle(string title) {
+    this->title = title;
+    #ifndef PORTALS
+    fallback.SetTitle(title);
+    #endif
+}
+bool FileBrowser::IsOpened() {
+    #ifdef PORTALS
+    return open;
+    #else
+    return fallback.IsOpened();
+    #endif
+}
+FileBrowser::~FileBrowser() {
+    #ifdef PORTALS
+    if (variant != NULL) {
+        g_variant_unref(variant);
+    }
+    if (type != NULL) {
+        g_variant_type_free(type);
+    }
+    if (inner_filter_type != NULL) {
+        g_variant_type_free(inner_filter_type);
+    }
+    g_main_loop_quit(main_loop);
+    #endif
+}

file_browser.h

@@ -0,0 +1,51 @@
+#pragma once
+#include <string>
+#include <vector>
+#include <filesystem>
+#include <optional>
+#ifdef PORTALS
+#include <libportal/portal.h>
+#include <libportal/filechooser.h>
+#endif
+#include "imgui.h"
+#include "imfilebrowser.h"
+
+using std::string;
+using std::vector;
+using std::optional;
+using namespace std::filesystem;
+
+class FileBrowser {
+    #ifdef PORTALS
+    XdpPortal *portal;
+    GVariant *variant = NULL;
+    GVariantType *type = NULL;
+    GVariantType *inner_filter_type = NULL;
+    GMainLoop *main_loop;
+    GMainContext *main_context;
+    static void FileBrowserOpenCallback(GObject *src, GAsyncResult *res, gpointer data);
+    static void FileBrowserSaveCallback(GObject *src, GAsyncResult *res, gpointer data);
+    bool open = false;
+    #endif
+    bool save;
+    ImGui::FileBrowser fallback;
+    path pwd;
+    string filter_name;
+    vector<string> filters;
+    string title;
+    optional<path> selected;
+    public:
+    void SetTitle(string title);
+    void SetTypeFilters(string name, vector<string> filters);
+    void SetPwd(path path);
+    bool HasSelected();
+    path GetSelected();
+    void SetWindowSize(int width, int height);
+    void SetWindowPos(int x, int y);
+    void Display();
+    void Open();
+    void ClearSelected();
+    bool IsOpened();
+    FileBrowser(bool save);
+    ~FileBrowser();
+};

main.cpp

@@ -1,7 +1,7 @@
 #include "imgui.h"
 #include "imgui_impl_sdl2.h"
 #include "imgui_impl_opengl3.h"
-#include "imfilebrowser.h"
+#include "file_browser.h"
 #include "playback.h"
 #include "theme.h"
 #include "icon.h"
@@ -177,9 +177,9 @@ int main(int, char**)
     bool show_demo_window = false;
     ImVec4 clear_color = ImVec4(0.45f, 0.55f, 0.60f, 1.00f);
 
-    ImGui::FileBrowser fileDialog;
+    FileBrowser fileDialog(false);
     fileDialog.SetTitle("Open...");
-    fileDialog.SetTypeFilters({ ".wav", ".ogg", ".mp3", ".qoa", ".flac", ".xm", ".mod"});
+    fileDialog.SetTypeFilters("Audio files", { ".wav", ".ogg", ".mp3", ".qoa", ".flac", ".xm", ".mod"});
     std::string userdir = std::getenv(
     #ifdef _WIN32
     "UserProfile"
@@ -269,8 +269,16 @@ int main(int, char**)
             ImGui_ImplSDL2_ProcessEvent(&event);
             if (event.type == SDL_QUIT)
                 done = true;
-            if (event.type == SDL_WINDOWEVENT && event.window.event == SDL_WINDOWEVENT_CLOSE && event.window.windowID == SDL_GetWindowID(window))
+            if (event.type == SDL_WINDOWEVENT) {
-                done = true;
+                if (event.window.event == SDL_WINDOWEVENT_RESIZED) {
+                    window_width = event.window.data1;
+                    window_height = event.window.data2;
+                    //SDL_GetWindowSize(window, &window_width, &window_height);
+                }
+                if (event.window.event == SDL_WINDOWEVENT_CLOSE && event.window.windowID == SDL_GetWindowID(window)) {
+                    done = true;
+                }
+            }
         }
 
         // Start the Dear ImGui frame
@@ -398,6 +406,10 @@ int main(int, char**)
             Theme::ShowEditor(&theme_editor, theme);
             theme->Apply(accent_color);
         }
+        if (fileDialog.IsOpened()) {
+            fileDialog.SetWindowSize(window_width, window_height);
+            fileDialog.SetWindowPos(0, 0);
+        }
         fileDialog.Display();
 
         if (fileDialog.HasSelected()) {

meson.build

@@ -9,27 +9,34 @@ endif
 if get_option('gles')
   add_global_arguments('-DIMGUI_IMPL_OPENGL_ES2', language: 'cpp')
 endif
+# SDL Mixer X
 smx_opts = cmake.subproject_options()
 smx_opts.add_cmake_defines({'SDL_MIXER_X_STATIC': true, 'SDL_MIXER_X_SHARED': false, 'USE_MIDI_NATIVE_ALT': false, 'USE_MIDI_NATIVE': false}) 
 smx_opts.set_override_option('c_std', 'c99')
 smx_subproj = cmake.subproject('SDL-Mixer-X', options: smx_opts)
-#raudio_lib = static_library('raudio', 'raudio/src/raudio.c', c_args: ['-DRAUDIO_STANDALONE', '-DSUPPORT_MODULE_RAUDIO', '-DSUPPORT_FILEFORMAT_WAV', '-DSUPPORT_FILEFORMAT_OGG', '-DSUPPORT_FILEFORMAT_MP3', '-DSUPPORT_FILEFORMAT_QOA', '-DSUPPORT_FILEFORMAT_FLAC', '-DSUPPORT_FILEFORMAT_XM', '-DSUPPORT_FILEFORMAT_MOD', '-w'])
+
-#raudio_include = include_directories('raudio/src')
+opts = []
-#raudio_dep = declare_dependency(include_directories: raudio_include, link_with: raudio_lib)
+
 deps = [
   dependency('sdl2'),
   dependency('SDL2_image'),
   dependency('gl'),
   subproject('jsoncpp').get_variable('jsoncpp_dep'),
   dependency('soundtouch'),
-  #raudio_dep,
+  smx_subproj.dependency('SDL2_mixer_ext_Static')
-  smx_subproj.dependency('SDL2_mixer_ext_Static'),
 ]
 
+if get_option('portals') and host_machine.system() == 'linux'
+  # Dbus CXX
+  deps += dependency('libportal')
+  opts += '-DPORTALS'
+endif
+
 srcs = [
   'main.cpp',
   'playback.cpp',
   'theme.cpp',
+  'file_browser.cpp',
   'imgui/imgui.cpp',
   'imgui/imgui_widgets.cpp',
   'imgui/imgui_tables.cpp',
@@ -66,4 +73,5 @@ install_data('assets/com.experimentalcraft.NekoPlayer.metainfo.xml', install_dir
 exe = executable('neko-player', srcs,
   dependencies: deps,
   include_directories: include_dirs,
-  install : true)
+  install : true,
+  cpp_args: opts)

meson.options

@@ -1 +0,0 @@
-option('gles', type: 'boolean', value: false)

meson_options.txt

@@ -1 +1,2 @@
 option('gles', type: 'boolean', value: false)
+option('portals', type: 'boolean', value: true)

theme.cpp

@@ -27,8 +27,8 @@ ImVec4 change_accent_color(ImVec4 in, float hue) {
     return out;
 }
 bool Theme::ShowEditor(bool* open, Theme* &theme) {
-    static ImGui::FileBrowser importDialog;
+    static FileBrowser importDialog(false);
-    static ImGui::FileBrowser exportDialog;
+    static FileBrowser exportDialog(true);
     static bool loadOpen = false;
     static bool saveAsOpen = false;
     ImGui::Begin("Theme Editor", open);
@@ -54,7 +54,7 @@ bool Theme::ShowEditor(bool* open, Theme* &theme) {
     }
     if (ImGui::Button("Import...", buttonSize)) {
         importDialog.SetTitle("Import theme...");
-        importDialog.SetTypeFilters({ ".json"});
+        importDialog.SetTypeFilters("Theme JSON files", { ".json"});
         std::string userdir = std::getenv(
         #ifdef _WIN32
         "UserProfile"
@@ -67,9 +67,8 @@ bool Theme::ShowEditor(bool* open, Theme* &theme) {
     }
     ImGui::SameLine();
     if (ImGui::Button("Export...", buttonSize)) {
-        exportDialog = ImGui::FileBrowser(ImGuiFileBrowserFlags_EnterNewFilename|ImGuiFileBrowserFlags_CreateNewDir);
         exportDialog.SetTitle("Export theme...");
-        exportDialog.SetTypeFilters({ ".json"});
+        exportDialog.SetTypeFilters("Theme JSON files", { ".json"});
         std::string userdir = std::getenv(
         #ifdef _WIN32
         "UserProfile"

theme.h

@@ -2,7 +2,7 @@
 #include "imgui.h"
 #include <set>
 #include <string>
-#include "imfilebrowser.h"
+#include "file_browser.h"
 #include <filesystem>
 using std::string;
 using namespace std::filesystem;