gui_dialogs.c

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#include "gui_internal.h"
 
static const SDL_DialogFileFilter ISO_FILE_FILTERS[] = {
    {"ISO images", "iso"},
};
 
static const SDL_DialogFileFilter LOG_FILE_FILTERS[] = {
    {"Log files", "log"},
    {"Text files", "txt"},
};
 
static SDL_Window *dialog_parent_window(const DTTR_ImGuiDialogContext *ctx) {
    return ctx ? ctx->window : NULL;
}
 
static const char *optional_path(const char *path) {
    return path && path[0] ? path : NULL;
}
 
static void open_file_dialog(
    const DTTR_ImGuiDialogContext *ctx,
    config_ui_state *state,
    SDL_DialogFileCallback callback,
    const SDL_DialogFileFilter *filters,
    int filter_count,
    const char *path
) {
    DTTR_SDL_ShowOpenFileDialog(
        callback,
        state,
        dialog_parent_window(ctx),
        filters,
        filter_count,
        path,
        false
    );
}
 
static void apply_dialog_selection(
    config_ui_state *state,
    char *path,
    size_t path_size,
    const char *const *filelist,
    const char *open_failure_status,
    const char *selected_status
) {
    if (!state) {
        return;
    }
 
    if (!filelist) {
        set_status(state, open_failure_status);
        return;
    }
 
    if (!filelist[0]) {
        return;
    }
 
    if (!path || path_size == 0) {
        return;
    }
 
    if (!DTTR_Path_CopyString(path, path_size, filelist[0])) {
        set_status(state, "Selected path is too long.");
        return;
    }
 
    set_status(state, selected_status);
}
 
static void SDLCALL
pcdogs_path_dialog_callback(void *userdata, const char *const *filelist, int) {
    config_ui_state *state = (config_ui_state *)userdata;
    apply_dialog_selection(
        state,
        state ? state->config.pcdogs_path : NULL,
        state ? sizeof(state->config.pcdogs_path) : 0,
        filelist,
        "Failed to open path dialog.",
        "Selected game path."
    );
}
 
void open_pcdogs_dir_dialog(const DTTR_ImGuiDialogContext *ctx, config_ui_state *state) {
    const char *path = state ? optional_path(state->config.pcdogs_path) : NULL;
    DTTR_SDL_ShowOpenFolderDialog(
        pcdogs_path_dialog_callback,
        state,
        dialog_parent_window(ctx),
        path,
        false
    );
}
 
void open_pcdogs_iso_dialog(const DTTR_ImGuiDialogContext *ctx, config_ui_state *state) {
    const char *path = state ? optional_path(state->config.pcdogs_path) : NULL;
    open_file_dialog(
        ctx,
        state,
        pcdogs_path_dialog_callback,
        ISO_FILE_FILTERS,
        (int)SDL_arraysize(ISO_FILE_FILTERS),
        path
    );
}
 
static void SDLCALL
log_file_path_dialog_callback(void *userdata, const char *const *filelist, int) {
    config_ui_state *state = (config_ui_state *)userdata;
    apply_dialog_selection(
        state,
        state ? state->config.log_file_path : NULL,
        state ? sizeof(state->config.log_file_path) : 0,
        filelist,
        "Failed to open log file dialog.",
        "Selected log file path."
    );
}
 
void open_log_file_dialog(const DTTR_ImGuiDialogContext *ctx, config_ui_state *state) {
    const char *path = state ? optional_path(state->config.log_file_path) : NULL;
    open_file_dialog(
        ctx,
        state,
        log_file_path_dialog_callback,
        LOG_FILE_FILTERS,
        (int)SDL_arraysize(LOG_FILE_FILTERS),
        path
    );
}