vscode extension插件开发（二）

常用的vscode开发与配置

1. vscode字体设置

let firstLetterDecoration = vscode.window.createTextEditorDecorationType({color: "#ff0000"});
let range = new vscode.Range(insertPosition, endInsertPosition);
editor.setDecorations(firstLetterDecoration, [range]);

2. CompletionItemProvider 输入文件的提示内容

class CppHoverProvider implements vscode.CompletionItemProvider{
        provideCompletionItems(document: vscode.TextDocument, position: vscode.Position, token: vscode.CancellationToken): vscode.CompletionItem[]{
            
            var completionItems:vscode.CompletionItem[] = [];
            var completionItem:vscode.CompletionItem = new vscode.CompletionItem("bb");
            completionItem.kind = vscode.CompletionItemKind.Snippet;
            completionItem.detail = "bde";
            completionItem.filterText = "bb";
            completionItem.insertText = "bb";
            completionItems.push(completionItem);
            return completionItems;
        }
        resolveCompletionItem(item: vscode.CompletionItem, token: vscode.CancellationToken): any{
            var completionItem1:vscode.CompletionItem = new vscode.CompletionItem("id");
            completionItem1.detail = "aaa";
            completionItem1.kind = vscode.CompletionItemKind.Snippet;
            completionItem1.filterText = "aa";
            completionItem1.insertText = "aa";
            return completionItem1;
        }
        dispose(){

        }
    }

3. 获取当前编辑文件信息

//文件名
vscode.window.activeTextEditor.document.fileName
//扩展名
vscode.window.activeTextEditor.document.languageId
//uri
vscode.window.activeTextEditor.document.uri

4. 获取当前的workspace根目录

vscode.workspace.rootPath

5. 显示output输出框

let outputChannel: vscode.OutputChannel; 
//创建output
outputChannel = vscode.window.createOutputChannel('outputname');
//打开并显示output
outputChannel.show();
//清空output内容
outputChannel.clear();
//写入内容到ouput中
let result = "ouput msg";
outputChannel.appendLine(result);

6. 显示提示信息

显示提示信息，包括showErrorMessage，showInformationMessage，showWarningMessage

vscode.window.showInformationMessage("Cpplint deactivated")

    interface CommandQuickPickItem extends vscode.QuickPickItem {
        command: () => Promise;
    }

    let items: CommandQuickPickItem[] = [];
    items.push({ description: 'Runs the analyzer on the current file.', label: 'Analyze current file', command: runAnalysis });
    items.push({ description: 'Runs the analyzer on the entire workspace.', label: 'Analyze workspace', command: runAnalysisAllFiles });
    items.push({ description: 'Opens your web browser to the Cppcheck manual.', label: 'Read the manual', command: readTheManual });

    vscode.window.showQuickPick(items, { matchOnDetail: true, matchOnDescription: true }).then(selectedItem => {
        if (selectedItem && typeof selectedItem.command === 'function') {
            selectedItem.command();
        }
    });

其他显示还有showOpenDialog，showInputBox，showSaveDialog，showTextDocument，showWorkspaceFolderPick
详细可以参考：https://code.visualstudio.com/docs/extensionAPI/vscode-api

7. 获取配置信息

let settings = vscode.WorkspaceConfiguration
//let settings = vscode.workspace.getConfiguration('cpplint');
let cpplintPath = settings.get('cpplintPath', null);

8. text文档event监听与处理

主要包括onDidOpenTextDocument，onDidCloseTextDocument，onDidChangeTextDocument，onWillSaveTextDocument，onDidSaveTextDocument

//文件打开
vscode.workspace.onDidOpenTextDocument((() => doLint()).bind(this));
//文件保存
vscode.workspace.onDidSaveTextDocument((() => doLint()).bind(this));

9. 文档打开以后侧边提示信息

let diagnosticCollection: vscode.DiagnosticCollection = vscode.languages.createDiagnosticCollection('cppcheck');

diagnosticCollection.clear();

let severity = "";
let message = "";
let level = vscode.DiagnosticSeverity.Information;

vscode.workspace.openTextDocument(fileName).then((doc: vscode.TextDocument) => {
    let diagnostics: vscode.Diagnostic[] = [];
    let d = new vscode.Diagnostic(r, `(${severity}) ${message}`, level);
    d.source = 'cppcheck';
    diagnostics.push(d);
    diagnosticCollection.set(doc.uri, diagnostics);
});