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Support root in drag and drop sample

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This commit is contained in:
Alex Ross
2022-03-24 13:44:07 +01:00
parent b0d059b861
commit 92b34c5733
1 changed files with 11 additions and 5 deletions
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16
tree-view-sample/src/testViewDragAndDrop.ts
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@ -57,7 +57,7 @@ export class TestViewDragAndDrop implements vscode.TreeDataProvider<Node>, vscod
// Drag and drop controller
public async handleDrop(target: Node, sources: vscode.DataTransfer, token: vscode.CancellationToken): Promise<void> {
public async handleDrop(target: Node | undefined, sources: vscode.DataTransfer, token: vscode.CancellationToken): Promise<void> {
const transferItem = sources.get('application/vnd.code.tree.testViewDragAndDrop');
if (!transferItem) {
return;
@ -80,7 +80,10 @@ export class TestViewDragAndDrop implements vscode.TreeDataProvider<Node>, vscod
// Helper methods
_isChild(node: Node, child: Node): boolean {
_isChild(node: Node, child: Node | undefined): boolean {
if (!child) {
return false;
}
for (const prop in node) {
if (prop === child.key) {
return true;
@ -112,12 +115,12 @@ export class TestViewDragAndDrop implements vscode.TreeDataProvider<Node>, vscod
}
// Remove node from current position and add node to new target element
_reparentNode(node: Node, target: Node): void {
_reparentNode(node: Node, target: Node | undefined): void {
const element = {};
element[node.key] = this._getTreeElement(node.key);
const elementCopy = { ...element };
this._removeNode(node);
const targetElement = this._getTreeElement(target.key);
const targetElement = this._getTreeElement(target?.key);
if (Object.keys(element).length === 0) {
targetElement[node.key] = {};
} else {
@ -166,7 +169,10 @@ export class TestViewDragAndDrop implements vscode.TreeDataProvider<Node>, vscod
};
}
_getTreeElement(element: string, tree?: any): Node {
_getTreeElement(element: string | undefined, tree?: any): any {
if (!element) {
return this.tree;
}
const currentNode = tree ?? this.tree;
for (const prop in currentNode) {
if (prop === element) {