dijit.从树到子节点的树dn不会在目标树中创建

dijit.Tree DnD from tree to child nodes don't get created in target tree

本文关键字：目标 创建 dn 子节点 dijit      更新时间：2023-09-26

我有两个dijit。树:srcTree和trgTree。我已经实现了trgTree。itemCreator函数，并在目标节点/树中正确创建被删除的节点，但未创建被删除节点的子节点。我也尝试了许多排列来创造它们，但似乎都不起作用。

知道我错过了什么吗?下面是我的itemCreator代码:

    trgTreeItemCreator: function(/*DomNode[]*/ nodes, target, /*dojo.dnd.Source*/ source) {
    console.info("*** start newTreeItemCreator");
    var tmp = dijit.getEnclosingWidget(nodes[0]);
    var kids = dojo.map(tmp.item.items, function(kid){
        return {
            "id": kid.id,
            "name": [kid.name[0]],
            "type": [kid.type[0]]
        };
    });
    var newItems = [{id:nodes[0].id, name:[tmp.label], type:[tmp.item.type[0]], items:kids}];
    return newItems;
},

我的帖子赢得了滚草…太棒了!:）我想出了一个变通办法，就是这个。

    var that = this;
    this.trgTree = 
        new dijit.Tree({
            model: this.trgTreeModel,
            dndController: "dijit.tree.dndSource",
            checkAcceptance: this.treeCheckAcceptance,
            checkItemAcceptance: this.trgTreeCheckItemAcceptance,
            getIconClass: app.getIcon,
            onDndDrop: function(source, nodes, copy) {
            that.handleDrop(that, dijit.getEnclosingWidget(
                nodes[0]).item, this.current.item);
            that.srcStore.save();
            that.trgStore.save();
        }
    }, "trgTree");
    handleDrop: function(inPage, inSrcItem, inTrgItem) {
        console.info("*** start addItem: srcItem: " + inSrcItem.name[0]);
        var srcType = inSrcItem.type[0];
        var kids = inSrcItem.items;
        if (inTrgItem.type != "fooType") {
            // do something unique for fooType node targets
        }
    // add the item to the tree
    inPage.addItem(inPage, inSrcItem, inTrgItem);
}
addItem: function(inPage, inSrcItem, inTrgItem) {
    var srcType = inSrcItem.type[0];
    var trgType = inTrgItem.type[0];
    var theName = inSrcItem.name[0];
    if (srcType == "fooType") {
        srcType = inSrcItem.txType[0];
    }
    var newItem = {
        id: inSrcItem.id[0],
        name: theName,
        type: srcType,
        items: []
    };

    newItem = inPage.trgStore.newItem(newItem);
    inPage.trgTreeModel.pasteItem(newItem, null, inTrgItem, false, 0);
    var kids = inSrcItem.items;
    if (kids !== undefined) {
        // call recursively to add child items
        for (var i in kids) {
            inPage.addItem(inPage, kids[i], newItem);
            // TODO: expand the node after it is added
        }
    }
},

所有这些代码都是在一个类的背景下，这就是那个类(这是一个WaveMaker项目，所以这个类是一个wm.Page)。很抱歉缺乏详细信息和文档，但这是一个很好的入门代码。如果你对我的变通方法有什么具体的问题，尽管问，我会尽量及时回答的。

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