implement listview onselection event (Cocoa)

Sat, 23 Aug 2025 18:31:55 +0200

author
Olaf Wintermann <olaf.wintermann@gmail.com>
date
Sat, 23 Aug 2025 18:31:55 +0200
changeset 712
9693f447a0c7
parent 711
673e7e41c93e
child 713
f279d3cf2bf5

implement listview onselection event (Cocoa)

ui/cocoa/ListDelegate.h file | annotate | diff | comparison | revisions
ui/cocoa/ListDelegate.m file | annotate | diff | comparison | revisions
ui/cocoa/list.m file | annotate | diff | comparison | revisions
--- a/ui/cocoa/ListDelegate.h	Sat Aug 23 17:45:15 2025 +0200
+++ b/ui/cocoa/ListDelegate.h	Sat Aug 23 18:31:55 2025 +0200
@@ -30,14 +30,17 @@
 
 @interface ListDelegate : NSObject <NSTableViewDelegate>
 
+@property (weak) NSTableView *tableview;
 @property UiObject    *obj;
 @property ui_callback onselection;
 @property void        *onselectiondata;
 @property ui_callback onactivate;
 @property void        *onactivatedata;
 
-- (id)init:(UiObject*)obj;
+- (id)init:(NSTableView*) tableview obj:(UiObject*)obj;
 
 - (void)activateEvent:(id)sender;
 
 @end
+
+UiListSelection ui_tableview_selection(NSTableView *tableview);
--- a/ui/cocoa/ListDelegate.m	Sat Aug 23 17:45:15 2025 +0200
+++ b/ui/cocoa/ListDelegate.m	Sat Aug 23 18:31:55 2025 +0200
@@ -30,7 +30,8 @@
 
 @implementation ListDelegate
 
-- (id)init:(UiObject*)obj {
+- (id)init:(NSTableView*) tableview obj:(UiObject*)obj {
+    _tableview = tableview;
     _obj = obj;
     return self;
 }
@@ -57,4 +58,42 @@
     }
 }
 
+- (void) tableViewSelectionDidChange:(NSNotification *) notification {
+    if(_onselection) {
+        UiListSelection sel = ui_tableview_selection(_tableview);
+        
+        UiEvent  event;
+        event.obj = _obj;
+        event.window = event.obj->window;
+        event.document = event.obj->ctx->document;
+        event.eventdata = &sel;
+        event.eventdatatype = UI_EVENT_DATA_LIST_SELECTION;
+        event.intval = 0;
+        event.set = ui_get_setop();
+        
+        _onselection(&event, _onselectiondata);
+    }
+}
+
 @end
+
+UiListSelection ui_tableview_selection(NSTableView *tableview) {
+    NSIndexSet *indexSet = tableview.selectedRowIndexes;
+    NSUInteger count = [indexSet count];
+    
+    if(count == 0) {
+        return (UiListSelection){0, NULL};
+    }
+    
+    int *rows = calloc(count, sizeof(int));
+    
+    __block NSUInteger i = 0;
+    [indexSet enumerateIndexesUsingBlock:^(NSUInteger index, BOOL *stop) {
+        rows[i++] = (int)index;
+    }];
+    
+    UiListSelection sel;
+    sel.count = (int)count;
+    sel.rows = rows;
+    return sel;
+}
--- a/ui/cocoa/list.m	Sat Aug 23 17:45:15 2025 +0200
+++ b/ui/cocoa/list.m	Sat Aug 23 18:31:55 2025 +0200
@@ -76,7 +76,7 @@
         objc_setAssociatedObject(tableview, "ui_datasource", dataSource, OBJC_ASSOCIATION_RETAIN);
     }
     
-    ListDelegate *delegate = [[ListDelegate alloc] init:obj];
+    ListDelegate *delegate = [[ListDelegate alloc] init:tableview obj:obj];
     delegate.onactivate = args->onactivate;
     delegate.onactivatedata = args->onactivatedata;
     delegate.onselection = args->onselection;

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