126 lines
3.7 KiB
Plaintext
126 lines
3.7 KiB
Plaintext
@typeparam TItem
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@*
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* dbMango
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*
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* Copyright 2025 Deutsche Bank AG
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* SPDX-License-Identifier: Apache-2.0
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*@
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<div class="tree-container">
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<style>
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.tree-node {
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margin-left: 5px;
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}
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.node-header {
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display: flex;
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align-items: center;
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}
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.node-selected {
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background-color: @Night.BackgroundLight;
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}
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.node-text {
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cursor: pointer;
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margin-right: 10px;
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}
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.no-padding {
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margin: 0 !important;
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padding: 0 !important;
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}
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.btn-placeholder {
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width: 30px;
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height: 24px;
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}
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</style>
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<CascadingValue Value="_currentlyEditingNode" Name="CurrentlyEditingNodeRef">
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<CascadingValue Value="SetCurrentlyEditingNode" Name="SetCurrentlyEditingNodeRef">
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<CascadingValue Value="SelectedNode" Name="SelectedNodeRef">
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<CascadingValue Value="SetCurrentlySelectedNode" Name="SetSelectedNodeRef">
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<CascadingValue Value="ReadOnly" Name="ReadOnly">
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@if (AllowAddRootNode)
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{
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<button class="btn btn-secondary" @onclick="AddRootNode">Add Root Node</button>
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}
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<ul>
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@foreach (var node in RootNodes)
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{
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<TreeNodeComponent Node="node" OnNodeChanged="OnNodeChanged" LabelTemplate="@LabelTemplate" BodyTemplate="@BodyTemplate"/>
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}
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</ul>
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</CascadingValue>
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</CascadingValue>
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</CascadingValue>
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</CascadingValue>
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</CascadingValue>
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</div>
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@code {
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[Parameter] public List<TreeNode<TItem>> RootNodes { get; set; } = [];
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[Parameter] public EventCallback<TreeNode<TItem>> OnNodeChanged { get; set; }
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[Parameter] public bool AllowAddRootNode { get; set; }
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[Parameter] public bool ReadOnly { get; set; }
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[Parameter] public RenderFragment<TreeNode<TItem>>? LabelTemplate { get; set; }
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[Parameter] public RenderFragment<TreeNode<TItem>>? BodyTemplate { get; set; }
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[Parameter]
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public TreeNode<TItem>? SelectedNode
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{
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get;
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set
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{
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if (!EqualityComparer<TreeNode<TItem>?>.Default.Equals(field, value))
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{
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field = value;
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SelectedNodeChanged.InvokeAsync(value);
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StateHasChanged();
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}
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}
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} = null;
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[Parameter]
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public EventCallback<TreeNode<TItem>?> SelectedNodeChanged { get; set; }
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private void AddRootNode()
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{
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var newNode = new TreeNode<TItem> { Data = default }; // Or initialize with a default TItem
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RootNodes.Add(newNode);
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OnNodeChanged.InvokeAsync(newNode);
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}
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private TreeNode<TItem>? _currentlyEditingNode = null;
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private void SetCurrentlyEditingNode(TreeNode<TItem>? node)
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{
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_currentlyEditingNode = node;
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StateHasChanged(); // Crucial to propagate the change
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}
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private void SetCurrentlySelectedNode(TreeNode<TItem>? node)
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{
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SelectedNode = node;
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}
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}
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