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/*---------------------------------------------------------------------------------------------
* Copyright (c) Microsoft Corporation. All rights reserved.
* Licensed under the MIT License. See License.txt in the project root for license information.
*--------------------------------------------------------------------------------------------*/
import * as vscode from 'vscode';
import * as nls from 'vscode-nls';
import { Slugifier } from '../slugify';
import { Disposable } from '../util/dispose';
import { SkinnyTextDocument } from '../workspaceContents';
import { MdReference, MdReferencesProvider } from './references';
const localize = nls.loadMessageBundle();
export class MdRenameProvider extends Disposable implements vscode.RenameProvider {
private cachedRefs?: {
readonly resource: vscode.Uri;
readonly version: number;
readonly position: vscode.Position;
readonly references: MdReference[];
} | undefined;
public constructor(
private readonly referencesProvider: MdReferencesProvider,
private readonly slugifier: Slugifier,
) {
super();
}
public async prepareRename(document: SkinnyTextDocument, position: vscode.Position, token: vscode.CancellationToken): Promise<undefined | vscode.Range> {
const references = await this.referencesProvider.getAllReferences(document, position, token);
if (token.isCancellationRequested) {
return undefined;
}
if (!references?.length) {
throw new Error(localize('invalidRenameLocation', "Rename not supported at location"));
}
const triggerRef = references.find(ref => ref.isTriggerLocation);
if (!triggerRef) {
return undefined;
}
switch (triggerRef.kind) {
case 'header':
return triggerRef.headerTextLocation.range;
case 'link':
if (triggerRef.link.kind === 'definition') {
// We may have been triggered on the ref or the definition itself
if (triggerRef.link.refRange.contains(position)) {
return triggerRef.link.refRange;
} else {
if (triggerRef.fragmentLocation) {
return triggerRef.fragmentLocation.range;
}
throw new Error(localize('renameNoFiles', "Renaming files is currently not supported"));
}
} else {
if (triggerRef.fragmentLocation) {
return triggerRef.fragmentLocation.range;
}
throw new Error(localize('renameNoFiles', "Renaming files is currently not supported"));
}
}
}
public async provideRenameEdits(document: SkinnyTextDocument, position: vscode.Position, newName: string, token: vscode.CancellationToken): Promise<vscode.WorkspaceEdit | undefined> {
const references = await this.getAllReferences(document, position, token);
if (token.isCancellationRequested || !references?.length) {
return undefined;
}
const triggerRef = references.find(ref => ref.isTriggerLocation);
if (!triggerRef) {
return undefined;
}
const isRefRename = triggerRef.kind === 'link' && (
(triggerRef.link.kind === 'definition' && triggerRef.link.refRange.contains(position)) || triggerRef.link.href.kind === 'reference'
);
const slug = this.slugifier.fromHeading(newName).value;
const edit = new vscode.WorkspaceEdit();
for (const ref of references) {
switch (ref.kind) {
case 'header':
edit.replace(ref.location.uri, ref.headerTextLocation.range, newName);
break;
case 'link':
if (ref.link.kind === 'definition') {
// We may be renaming either the reference or the definition itself
if (isRefRename) {
edit.replace(ref.link.sourceResource, ref.link.refRange, newName);
} else {
edit.replace(ref.link.sourceResource, ref.fragmentLocation?.range ?? ref.link.sourceHrefRange, ref.fragmentLocation ? slug : newName);
}
} else {
edit.replace(ref.location.uri, ref.fragmentLocation?.range ?? ref.location.range, ref.link.href.kind === 'reference' ? newName : slug);
}
break;
}
}
return edit;
}
private async getAllReferences(document: SkinnyTextDocument, position: vscode.Position, token: vscode.CancellationToken) {
const version = document.version;
if (this.cachedRefs
&& this.cachedRefs.resource.fsPath === document.uri.fsPath
&& this.cachedRefs.version === document.version
&& this.cachedRefs.position.isEqual(position)
) {
return this.cachedRefs.references;
}
const references = await this.referencesProvider.getAllReferences(document, position, token);
this.cachedRefs = {
resource: document.uri,
version,
position,
references
};
return references;
}
}
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