Function refreshFileList

apps/visualize-trace/static/js/script.js:315–368

(directory = null)

}

async function refreshFileList(directory = null) {
    try {
        const targetDirectory = directory || elements.directoryInput.value.trim();
        if (!targetDirectory) {
            elements.fileSelect.innerHTML = '<option value="">请先输入目录路径...</option>';
            currentFileList = [];
            currentFileIndex = -1;
            updateNavigationButtons();
            return;
        }
        
        showLoading();
        
        const url = `/api/list_files?directory=${encodeURIComponent(targetDirectory)}`;
        const data = await apiCall(url);
        
        elements.fileSelect.innerHTML = '<option value="">选择Trace文件...</option>';
        
        if (data.files.length === 0) {
            elements.fileSelect.innerHTML = '<option value="">该目录下没有JSON文件</option>';
            currentFileList = [];
            currentFileIndex = -1;
            showSuccess(`目录 "${targetDirectory}" 下没有找到JSON文件`);
            updateNavigationButtons();
            return;
        }
        
        // 保存文件列表到全局变量
        currentFileList = data.files;
        currentFileIndex = -1;
        
        data.files.forEach((file, index) => {
            const option = document.createElement('option');
            option.value = file.path;
            option.dataset.index = index;
            const fileSize = formatFileSize(file.size);
            const modifiedDate = new Date(file.modified * 1000).toLocaleString('zh-CN');
            option.textContent = `${file.name} (${fileSize}, ${modifiedDate})`;
            elements.fileSelect.appendChild(option);
        });
        
        showSuccess(`在目录 "${targetDirectory}" 中找到 ${data.files.length} 个JSON文件`);
        updateNavigationButtons();
        
    } catch (error) {
        showError('获取文件列表失败: ' + error.message);
        elements.fileSelect.innerHTML = '<option value="">获取文件列表失败</option>';
        currentFileList = [];
        currentFileIndex = -1;
        updateNavigationButtons();
    } finally {
        hideLoading();
    }
}

// 文件切换功能
function onFileSelect() {