HTML UI implementation for the Google Feedback client for Chrome/ChromeOS....

chrome/browser/dom_ui/dom_ui_screenshot_source.h

+// Copyright (c) 2009 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.
+
+#ifndef CHROME_BROWSER_DOM_UI_DOM_UI_SCREENSHOT_SOURCE_H_
+#define CHROME_BROWSER_DOM_UI_DOM_UI_SCREENSHOT_SOURCE_H_
+
+#include <string>
+#include <utility>
+#include <vector>
+
+#include "base/basictypes.h"
+#include "base/scoped_ptr.h"
+#include "chrome/browser/dom_ui/chrome_url_data_manager.h"
+#include "chrome/browser/dom_ui/html_dialog_ui.h"
+
+// ScreenshotSource is the data source that serves screenshots (saved
+// or current) to the bug report html ui
+class DOMUIScreenshotSource : public ChromeURLDataManager::DataSource {
+ public:
+  explicit DOMUIScreenshotSource(
+      std::vector<unsigned char>* current_screenshot);
+
+  // Called when the network layer has requested a resource underneath
+  // the path we registered.
+  virtual void StartDataRequest(const std::string& path,
+                                bool is_off_the_record,
+                                int request_id);
+
+  virtual std::string GetMimeType(const std::string&) const {
+    // We need to explicitly return a mime type, otherwise if the user tries to
+    // drag the image they get no extension.
+    return "image/png";
+  }
+
+  std::vector<unsigned char> GetScreenshot(const std::string& path);
+
+ private:
+  ~DOMUIScreenshotSource() {}
+
+//  scoped_refptr<RefCountedBytes> current_screenshot_;
+  std::vector<unsigned char> current_screenshot_;
+  DISALLOW_COPY_AND_ASSIGN(DOMUIScreenshotSource);
+};
+
+#endif  // CHROME_BROWSER_DOM_UI_DOM_UI_SCREENSHOT_SOURCE_H_