| // Copyright 2017 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| SourceFrame.PreviewFactory = class { |
| /** |
| * @param {!Common.ContentProvider} provider |
| * @param {string} mimeType |
| * @returns {!Promise<?UI.Widget>} |
| */ |
| static async createPreview(provider, mimeType) { |
| const content = await provider.requestContent(); |
| if (!content) |
| return new UI.EmptyWidget(Common.UIString('Nothing to preview')); |
| |
| let resourceType = Common.ResourceType.fromMimeType(mimeType); |
| if (resourceType === Common.resourceTypes.Other) |
| resourceType = provider.contentType(); |
| |
| switch (resourceType) { |
| case Common.resourceTypes.Image: |
| return new SourceFrame.ImageView(mimeType, provider); |
| case Common.resourceTypes.Font: |
| return new SourceFrame.FontView(mimeType, provider); |
| } |
| |
| const parsedXML = SourceFrame.XMLView.parseXML(content, mimeType); |
| if (parsedXML) |
| return SourceFrame.XMLView.createSearchableView(parsedXML); |
| |
| const jsonView = await SourceFrame.JSONView.createView(content); |
| if (jsonView) |
| return jsonView; |
| |
| if (resourceType.isTextType()) { |
| const highlighterType = |
| provider.contentType().canonicalMimeType() || mimeType.replace(/;.*/, ''); // remove charset |
| return SourceFrame.ResourceSourceFrame.createSearchableView( |
| provider, highlighterType, true /* autoPrettyPrint */); |
| } |
| |
| return null; |
| } |
| }; |
