+/*
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
+ *
+ * Copyright 2025 Olaf Wintermann. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#import "list.h"
+#import "ListDelegate.h"
+#import <objc/runtime.h>
+
+static void* getvalue_wrapper(UiList *list, void *elm, int row, int col, void *userdata, UiBool *freeResult) {
+ ui_getvaluefunc getvalue = (ui_getvaluefunc)userdata;
+ return getvalue(elm, col);
+}
+
+static void* str_getvalue(UiList *list, void *elm, int row, int col, void *userdata, UiBool *freeResult) {
+ return elm;
+}
+
+/* --------------------------- ListView --------------------------- */
+
+/*
+ * adds a NSTableViewDelegate that handles all events and calls
+ * callbacks specified in the UiListArgs
+ */
+static void add_listdelegate(UiObject *obj, NSTableView *tableview, UiListArgs *args) {
+ ListDelegate *delegate = [[ListDelegate alloc] init:tableview obj:obj];
+ delegate.onactivate = args->onactivate;
+ delegate.onactivatedata = args->onactivatedata;
+ delegate.onselection = args->onselection;
+ delegate.onselectiondata = args->onselectiondata;
+ tableview.delegate = delegate;
+ objc_setAssociatedObject(tableview, "ui_listdelegate", delegate, OBJC_ASSOCIATION_RETAIN);
+ tableview.doubleAction = @selector(activateEvent:);
+ tableview.target = delegate;
+}
+
+static void bind_list_to_tableview(UiList *list, NSTableView *tableview) {
+ list->obj = (__bridge void*)tableview;
+ list->update = ui_tableview_update;
+ list->getselection = ui_tableview_getselection;
+ list->setselection = ui_tableview_setselection;
+}
+
+UIWIDGET ui_listview_create(UiObject* obj, UiListArgs *args) {
+ NSScrollView *scrollview = [[NSScrollView alloc] init];
+
+ NSTableView *tableview = [[NSTableView alloc] init];
+ tableview.autoresizingMask = NSViewWidthSizable;
+ tableview.headerView = nil;
+
+ if(args->multiselection) {
+ tableview.allowsMultipleSelection = YES;
+ }
+
+ scrollview.documentView = tableview;
+
+ UiLayout layout = UI_INIT_LAYOUT(args);
+ ui_container_add(obj, scrollview, &layout);
+
+ add_listdelegate(obj, tableview, args);
+
+ UiVar *var = uic_widget_var(obj->ctx, obj->ctx, args->list, args->varname, UI_VAR_LIST);
+ if(var) {
+ UiList *list = var->value;
+ bind_list_to_tableview(list, tableview);
+
+ ui_getvaluefunc2 getvalue = args->getvalue2;
+ void *getvaluedata = args->getvalue2data;
+ if(!getvalue) {
+ if(args->getvalue) {
+ getvalue = getvalue_wrapper;
+ getvaluedata = (void*)args->getvalue;
+ } else {
+ getvalue = str_getvalue; // by default list values are interpreted as strings
+ }
+ }
+
+ NSTableColumn *column = [[NSTableColumn alloc] initWithIdentifier:@"column"];
+ [tableview addTableColumn:column];
+
+ ListDataSource *dataSource = [[ListDataSource alloc] init:tableview.tableColumns var:var getvalue:getvalue getvaluedata:getvaluedata];
+
+ tableview.dataSource = dataSource;
+ [tableview reloadData];
+
+ objc_setAssociatedObject(tableview, "ui_datasource", dataSource, OBJC_ASSOCIATION_RETAIN);
+ }
+
+ return (__bridge void*)scrollview;
+}
+
+/* --------------------------- TableView --------------------------- */
+
+UIWIDGET ui_table_create(UiObject* obj, UiListArgs *args) {
+ NSScrollView *scrollview = [[NSScrollView alloc] init];
+
+ NSTableView *tableview = [[NSTableView alloc] init];
+ tableview.autoresizingMask = NSViewWidthSizable;
+ tableview.columnAutoresizingStyle = NSTableViewSequentialColumnAutoresizingStyle;
+
+ if(args->multiselection) {
+ tableview.allowsMultipleSelection = YES;
+ }
+
+ UiLayout layout = UI_INIT_LAYOUT(args);
+ ui_container_add(obj, scrollview, &layout);
+
+ add_listdelegate(obj, tableview, args);
+
+ // convert model
+ NSMutableArray<NSTableColumn*> *cols = [[NSMutableArray alloc] init];
+ UiModel *model = args->model;
+ if(model) {
+ for(int i=0;i<model->columns;i++) {
+ char *title = model->titles[i];
+ UiModelType type = model->types[i];
+ int width = model->columnsize[i];
+ NSString *identifier = [[NSString alloc] initWithUTF8String:title];
+ NSTableColumn *column = [[NSTableColumn alloc] initWithIdentifier:identifier];
+ column.title = identifier;
+ column.resizingMask = NSTableColumnUserResizingMask;
+ if(width > 0) {
+ column.width = width;
+ } else if(width < 0) {
+ column.resizingMask = NSTableColumnAutoresizingMask | NSTableColumnUserResizingMask;
+ }
+ if(type >= UI_ICON) {
+ // TODO
+ }
+ [tableview addTableColumn:column];
+ [cols addObject:column];
+ }
+ }
+
+ UiVar *var = uic_widget_var(obj->ctx, obj->ctx, args->list, args->varname, UI_VAR_LIST);
+ if(var) {
+ UiList *list = var->value;
+ bind_list_to_tableview(list, tableview);
+
+ ui_getvaluefunc2 getvalue = args->getvalue2;
+ void *getvaluedata = args->getvalue2data;
+ if(!getvalue) {
+ if(args->getvalue) {
+ getvalue = getvalue_wrapper;
+ getvaluedata = (void*)args->getvalue;
+ } else {
+ fprintf(stderr, "Error: tableview requires getvalue or getvalue2 func\n");
+ return (__bridge void*)scrollview;
+ }
+ }
+
+ ListDataSource *dataSource = [[ListDataSource alloc] init:cols var:var getvalue:getvalue getvaluedata:getvaluedata];
+ if(model) {
+ dataSource.model = ui_model_copy(obj->ctx, model);
+ }
+
+ tableview.dataSource = dataSource;
+ [tableview reloadData];
+
+ objc_setAssociatedObject(tableview, "ui_datasource", dataSource, OBJC_ASSOCIATION_RETAIN);
+ }
+
+ scrollview.documentView = tableview;
+
+ return (__bridge void*)scrollview;
+}
+
+/* ------ common functions ------ */
+
+void ui_tableview_update(UiList *list, int i) {
+ NSTableView *tableview = (__bridge NSTableView*)list->obj;
+ if(i < 0) {
+ [tableview reloadData];
+ } else {
+ [tableview reloadData]; // TODO: optimize
+ }
+}
+
+UiListSelection ui_tableview_getselection(UiList *list) {
+ NSTableView *tableview = (__bridge NSTableView*)list->obj;
+ return ui_tableview_selection(tableview);
+}
+
+void ui_tableview_setselection(UiList *list, UiListSelection selection) {
+ NSTableView *tableview = (__bridge NSTableView*)list->obj;
+ NSMutableIndexSet *indexSet = [NSMutableIndexSet indexSet];
+ for(int i=0;i<selection.count;i++) {
+ [indexSet addIndex:selection.rows[i]];
+ }
+ [tableview selectRowIndexes:indexSet byExtendingSelection:NO];
+}
+
+
+/* --------------------------- DropDown --------------------------- */
+
+@implementation UiDropDown
+
+- (id)init:(UiObject*)obj {
+ _obj = obj;
+ return self;
+}
+
+- (void) comboBoxSelectionDidChange:(NSNotification *) notification {
+ int index = (int)_combobox.indexOfSelectedItem;
+
+ void *eventdata = NULL;
+ if(_var) {
+ UiList *list = _var->value;
+ if(index >= 0) {
+ eventdata = list->get(list, index);
+ }
+ } else {
+ NSString *str = _combobox.objectValueOfSelectedItem;
+ if(str) {
+ eventdata = (void*)str.UTF8String;
+ }
+ }
+
+ UiEvent event;
+ event.obj = _obj;
+ event.window = event.obj->window;
+ event.document = event.obj->ctx->document;
+ event.eventdata = eventdata;
+ event.eventdatatype = UI_EVENT_DATA_LIST_ELM;
+ event.intval = index;
+
+ if(_onselection) {
+ _onselection(&event, _onselectiondata);
+ }
+
+ if(_onactivate) {
+ _onactivate(&event, _onactivatedata);
+ }
+}
+
+@end
+
+UIWIDGET ui_combobox_create(UiObject* obj, UiListArgs *args) {
+ NSComboBox *dropdown = [[NSComboBox alloc] init];
+ dropdown.editable = NO;
+
+ UiDropDown *uidropdown = [[UiDropDown alloc] init:obj];
+ objc_setAssociatedObject(dropdown, "ui_dropdown", uidropdown, OBJC_ASSOCIATION_RETAIN);
+ uidropdown.onactivate = args->onactivate;
+ uidropdown.onactivatedata = args->onactivatedata;
+ uidropdown.onselection = args->onselection;
+ uidropdown.onselectiondata = args->onselectiondata;
+ uidropdown.combobox = dropdown;
+
+ if(!args->getvalue2) {
+ if(args->getvalue) {
+ args->getvalue2 = getvalue_wrapper;
+ args->getvalue2data = (void*)args->getvalue;
+ } else {
+ args->getvalue2 = str_getvalue;
+ }
+ }
+ uidropdown.getvalue = args->getvalue2;
+ uidropdown.getvaluedata = args->getvalue2data;
+
+ UiLayout layout = UI_INIT_LAYOUT(args);
+ ui_container_add(obj, dropdown, &layout);
+
+ UiVar *var = uic_widget_var(obj->ctx, obj->ctx, args->list, args->varname, UI_VAR_LIST);
+ if(var) {
+ UiList *list = var->value;
+ list->obj = (__bridge void*)dropdown;
+ list->update = ui_dropdown_update;
+ list->getselection = ui_dropdown_getselection;
+ list->setselection = ui_dropdown_setselection;
+ ui_dropdown_update(list, -1);
+ } else {
+ for(int i=0;i<args->static_nelm;i++) {
+ char *str = args->static_elements[i];
+ NSString *item = [[NSString alloc] initWithUTF8String:str];
+ [dropdown addItemWithObjectValue:item];
+ }
+ }
+
+ uidropdown.var = var;
+
+ return (__bridge void*)dropdown;
+}
+
+void ui_dropdown_update(UiList *list, int i) {
+ NSComboBox *combobox = (__bridge NSComboBox*)list->obj;
+ UiDropDown *dropdown = objc_getAssociatedObject(combobox, "ui_dropdown");
+ if(dropdown) {
+ [combobox removeAllItems];
+
+ ui_getvaluefunc2 getvalue = dropdown.getvalue;
+ void *getvaluedata = dropdown.getvaluedata;
+
+ int index = 0;
+ void *elm = list->first(list);
+ while(elm) {
+ UiBool freeResult = FALSE;
+ char *str = getvalue(list, elm, index, 0, getvaluedata, &freeResult);
+ if(str) {
+ NSString *item = [[NSString alloc] initWithUTF8String:str];
+ [combobox addItemWithObjectValue:item];
+ }
+ if(freeResult) {
+ free(str);
+ }
+ elm = list->next(list);
+ index++;
+ }
+ } else {
+ fprintf(stderr, "Error: obj is not a dropdown\n");
+ }
+}
+
+UiListSelection ui_dropdown_getselection(UiList *list) {
+ UiListSelection sel = { 0, NULL };
+ NSComboBox *combobox = (__bridge NSComboBox*)list->obj;
+ NSInteger index = combobox.indexOfSelectedItem;
+ if(index >= 0) {
+ sel.rows = malloc(sizeof(int));
+ sel.count = 1;
+ sel.rows[0] = (int)index;
+ }
+ return sel;
+}
+
+void ui_dropdown_setselection(UiList *list, UiListSelection selection) {
+ NSComboBox *combobox = (__bridge NSComboBox*)list->obj;
+ if(selection.count > 0) {
+ [combobox selectItemAtIndex:selection.rows[0]];
+ } else {
+ [combobox selectItemAtIndex: -1];
+ }
+}
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