Mercurial > hg > toolkit / file diff

--- a/ui/winui/list.cpp	Thu Oct 05 18:50:42 2023 +0200
+++ b/ui/winui/list.cpp	Fri Oct 06 19:38:10 2023 +0200
@@ -165,6 +165,49 @@
     return widget;
 }
 
+UIEXPORT UIWIDGET ui_breadcrumbbar_create(UiObject* obj, UiListArgs args) {
+    UiObject* current = uic_current_obj(obj);
+
+    // create listview and toolkit wrapper
+    BreadcrumbBar bcbar = BreadcrumbBar();
+
+    UIElement elm = bcbar;
+    UiWidget* widget = new UiWidget(elm);
+    widget->data1 = args.model;
+    widget->data2 = args.getvalue;
+    ui_context_add_widget_destructor(current->ctx, widget);
+
+    // bind var
+    UiVar* var = uic_widget_var(obj->ctx, current->ctx, args.list, args.varname, UI_VAR_LIST);
+    if (var) {
+        UiList* list = (UiList*)var->value;
+        list->update = ui_breadcrumbbar_update;
+        list->obj = widget;
+        ui_breadcrumbbar_update(list, 0);
+    }
+
+    if (args.onactivate) {
+        ui_callback cb = args.onactivate;
+        void* cbdata = args.onactivatedata;
+        bcbar.ItemClicked([cb, cbdata, obj](IInspectable const& sender, BreadcrumbBarItemClickedEventArgs evtargs) {
+            UiEvent evt;
+            evt.obj = obj;
+            evt.window = obj->window;
+            evt.document = obj->ctx->document;
+            evt.eventdata = nullptr;
+            evt.intval = evtargs.Index();
+            cb(&evt, cbdata);
+            });
+    }
+
+    // add listview to current container
+    UI_APPLY_LAYOUT1(current, args);
+
+    current->container->Add(bcbar, false);
+
+    return widget;
+}
+
 static void* getstrvalue(void* elm, int ignore) {
     return elm;
 }
@@ -198,6 +241,37 @@
     }
 }
 
+extern "C" void ui_breadcrumbbar_update(UiList * list, int i) {
+    UiWidget* widget = (UiWidget*)list->obj;
+    UiModel* model = (UiModel*)widget->data1;
+    ui_getvaluefunc getvalue = (ui_getvaluefunc)widget->data2;
+
+    // priority: getvalue, model.getvalue, getstrvalue (fallback)
+    if (getvalue == nullptr) {
+        if (model && model->getvalue) {
+            getvalue = model->getvalue;
+        }
+        else {
+            getvalue = getstrvalue;
+        }
+    }
+
+    BreadcrumbBar bar = widget->uielement.as<BreadcrumbBar>();
+    
+    Windows::Foundation::Collections::IVector<Windows::Foundation::IInspectable> items { winrt::single_threaded_vector<Windows::Foundation::IInspectable>() };
+    void* elm = list->first(list);
+    while (elm) {
+        char* value = (char*)getvalue(elm, 0);
+        wchar_t* wstr = str2wstr(value, nullptr);
+        items.Append(box_value(wstr));
+        free(wstr);
+
+        elm = list->next(list);
+    }
+
+    bar.ItemsSource(items);
+}
+
 std::vector<int> ui_create_listview_selection(ListView listview) {
     std::vector<int> selection;
     int p = 0;