add share button and implement AirDrop share in OSX, update info.plist to set on Mac OS the default app for PPI, on iOS include the Documents/Inbox subfolder used to store the received files from AirDrop

src/app.cpp

@@ -208,15 +208,13 @@ int progress_callback_upload(void *clientp, curl_off_t dltotal,
     return 0;
 }
 
-void App::download(std::string filename, std::function<void(float)> progress)
+void App::download(std::string url, std::string dest_filepath, std::function<void(float)> progress)
 {
     CURL *curl = curl_easy_init();
     if (curl)
     {
-        auto dest = data_path + "/" + filename;
-        FILE* fp = fopen(dest.c_str(), "wb");
-        std::string url = "https://panopainter.com/cloud/cloud-dwl.php?file=" + filename;
-        LOG("download %s to %s", url.c_str(), dest.c_str());
+        FILE* fp = fopen(dest_filepath.c_str(), "wb");
+        LOG("download %s to %s", url.c_str(), dest_filepath.c_str());
         curl_easy_setopt(curl, CURLOPT_URL, url.c_str());
         curl_easy_setopt(curl, CURLOPT_WRITEDATA, fp);
         curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, curl_data_write);

src/app.h

@@ -100,6 +100,7 @@ public:
     void pick_file(std::vector<std::string> types, std::function<void(std::string path)> callback);
     void pick_dir(std::function<void(std::string path)> callback);
     void display_file(std::string path);
+    void share_file(std::string path);
     void showKeyboard();
     void hideKeyboard();
     void initLog();
@@ -164,7 +165,7 @@ public:
     void cloud_upload_all();
     void cloud_browse();
     void upload(std::string filename, std::string name = "", std::function<void(float)> progress = nullptr);
-    void download(std::string filename, std::function<void(float)> progress = nullptr);
+    void download(std::string url, std::string dest_filepath, std::function<void(float)> progress = nullptr);
     bool check_license();
     
     std::shared_ptr<NodeProgressBar> show_progress(const std::string& title);

src/app_cloud.cpp

@@ -146,7 +146,8 @@ void App::cloud_browse()
             m->m_message->set_text("Download in progress");
             async_redraw();
             async_end();
-            download(dialog->selected_path, [this,m](float p){
+            std::string url = "https://panopainter.com/cloud/cloud-dwl.php?file=" + dialog->selected_file;
+            download(url, dialog->selected_path, [this,m](float p){
                 static char progress[256];
                 sprintf(progress, "Download in progress %.2f%%", p * 100.f);
                 async_start();

src/app_dialogs.cpp

@@ -253,7 +253,11 @@ void App::dialog_browse()
         // load thumbnail test
         auto dialog = std::make_shared<NodeDialogBrowse>();
         dialog->m_manager = &layout;
-        dialog->search_path = work_path;
+#ifdef __IOS__
+        dialog->search_paths = {work_path, data_path + "/Inbox"};
+#else
+        dialog->search_paths = {work_path};
+#endif
         dialog->init();
         dialog->create();
         dialog->loaded();

src/app_events.cpp

@@ -151,6 +151,21 @@ void App::display_file(std::string path)
 #endif
 }
 
+void App::share_file(std::string path)
+{
+    if (path.empty())
+        return;
+#ifdef __IOS__
+#elif __OSX__
+    dispatch_async(dispatch_get_main_queue(), ^{
+        [osx_view share_file:[NSString stringWithUTF8String:path.c_str()]];
+    });
+#elif __ANDROID__
+#elif _WIN32
+    // not implemented
+#endif
+}
+
 bool App::mouse_down(int button, float x, float y, float pressure, kEventSource source, bool eraser)
 {
     redraw = true;

src/app_layout.cpp

@@ -420,6 +420,12 @@ void App::init_menu_file()
                     popup->mouse_release();
                     popup->destroy();
                 };
+            if (auto b = popup->find<NodeButtonCustom>("file-share"))
+                b->on_click = [this](Node*) {
+                    share_file(doc_path);
+                    popup->mouse_release();
+                    popup->destroy();
+                };
             if (auto b = popup->find<NodeButtonCustom>("file-resize"))
                 b->on_click = [this](Node*) {
                     dialog_resize();

src/node_dialog_browse.cpp

@@ -88,7 +88,7 @@ void NodeDialogBrowse::init_controls()
             realpath(path.c_str(), path_buffer);
 #endif
             working_path->set_text_format("Destination dir: %s", path_buffer);
-            search_path = path;
+            search_paths = {path};
             clear_list();
             init_list();
             async_update();
@@ -122,19 +122,29 @@ void NodeDialogBrowse::clear_list()
 
 void NodeDialogBrowse::init_list()
 {
-    auto names = Asset::list_files(search_path, false, ".*\\.ppi");
-    for (const auto& n : names)
+    std::vector<std::tuple<std::string/*file-name*/, std::string/*path*/>> files;
+    for (auto sp : search_paths)
     {
-        ui::Image thumb = ui::Canvas::I->thumbnail_read(search_path + "/" + n);
+        auto items = Asset::list_files(sp, false, ".*\\.ppi");
+        for (const auto& i : items)
+        {
+            files.push_back({i, sp + '/' + i});
+        }
+    }
+    for (const auto& f : files)
+    {
+        auto f_name = std::get<0>(f);
+        auto f_path = std::get<1>(f);
+        ui::Image thumb = ui::Canvas::I->thumbnail_read(f_path);
         if (thumb.width == 0 || thumb.height == 0)
             continue;
 
         auto node = new NodeDialogBrowseItem;
         node->m_manager = m_manager;
         node->init();
-        node->m_text->set_text(n.c_str());
-        node->m_path = search_path + "/" + n;
-        node->m_file_name = n;
+        node->m_text->set_text(f_name.c_str());
+        node->m_path = f_path;
+        node->m_file_name = f_name;
         node->on_selected = [&](NodeDialogBrowseItem* target) {
             if (target == current)
                 return;

src/node_dialog_browse.h

@@ -39,7 +39,7 @@ public:
     std::string selected_path;
     std::string selected_file;
     std::string selected_name;
-    std::string search_path;
+    std::vector<std::string> search_paths;
     virtual Node* clone_instantiate() const override;
     virtual void clone_finalize(Node* dest) const override;
     virtual void init() override;