ui/cocoa/ListDelegate.m

/*
 * 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 "ListDelegate.h"

@implementation ListDelegate

- (id)init:(NSTableView*) tableview obj:(UiObject*)obj {
    _tableview = tableview;
    _obj = obj;
    return self;
}

- (void)activateEvent:(id)sender {
    NSTableView *table = sender;
    if(_onactivate) {
        int row = (int)table.clickedRow;
        
        UiListSelection sel;
        sel.count = 1;
        sel.rows = &row;
        
        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 = row;
        event.set = ui_get_setop();
        
        _onactivate(&event, _onactivatedata);
    }
}

- (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;
}