import ngModule from '../../module';
import Component from '../../lib/component';

class Controller extends Component {
    constructor($element, $scope, $transclude) {
        super($element, $scope);
        this.$transclude = $transclude;
    }

    toggle(event, item) {
        if (event.defaultPrevented || !item.sons) return;
        event.preventDefault();
        this.treeview.onToggle(item);
    }

    select(item, value) {
        this.treeview.onSelection(item, value);
    }

    onIconClick(icon, item, parent, index) {
        let parentController = this.parentScope.$ctrl;
        icon.callback.call(parentController, item, parent, index);
    }

    onCreate(parent) {
        this.treeview.onCreate(parent);
    }

    onDrop(item, dragged, dropped) {
        this.treeview.onDrop(item, dragged, dropped);
    }

    get isInsertable() {
        return Array.isArray(this.parent) || this.parent.childs;
    }
}

Controller.$inject = ['$element', '$scope', '$transclude'];

ngModule.component('vnTreeviewChilds', {
    template: require('./childs.html'),
    controller: Controller,
    bindings: {
        items: '<',
        parent: '<?'
    },
    require: {
        treeview: '^vnTreeview'
    }
});