Printing on Windows via PDF

chrome/common/chrome_utility_messages.h

 // Copyright (c) 2012 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.
 
 // Multiply-included message file, so no include guard.
 
 #include <string>
 #include <vector>
 
 #include "base/basictypes.h"
@@ skipping 167 matching lines @@
                      std::string)  // base64 encoded image contents
 
 // Tell the utility process to render the given PDF into a metafile.
 // TODO(vitalybuka): switch to IPC::PlatformFileForTransit.
 IPC_MESSAGE_CONTROL4(ChromeUtilityMsg_RenderPDFPagesToMetafile,
                      base::PlatformFile,       // PDF file
                      base::FilePath,           // Location for output metafile
                      printing::PdfRenderSettings,  // PDF render settings
                      std::vector<printing::PageRange>)
 
+// Tell the utility process to render the given PDF into a metafile.
+IPC_MESSAGE_CONTROL3(ChromeUtilityMsg_RenderPDFToMetafile,
+                     IPC::PlatformFileForTransit,  // PDF file

[Vitaly Buka (NO REVIEWS), 2014/05/13 23:54:33]

Why not just ChromeUtilityMsg_RenderPDFPagesToMetafile ?

[scottmg, 2014/05/14 00:34:48]

A few (not great) reasons:
- I don't know how many pages are in the pdf to create the vector<PageRange>
- IPC::PlatformFileForTransit
- I was nervous about breaking cloud print as I had a hard time testing it.

Maybe an empty PageRange could correspond to all pages in
ChromeUtilityMsg_RenderPDFPagesToMetafile?

[Vitaly Buka (NO REVIEWS), 2014/05/14 03:51:18]

Cloud you please put TODO on me, and I'll merge this and cloud print code path.

On 2014/05/14 00:34:48, scottmg wrote:

[scottmg, 2014/05/15 18:01:30]

I took a try at merging, ptal.

+                     base::FilePath,  // Location for output metafile
+                     printing::PdfRenderSettings)  // PDF render settings
+
 // Tell the utility process to render the given PDF into a PWGRaster.
 IPC_MESSAGE_CONTROL4(ChromeUtilityMsg_RenderPDFPagesToPWGRaster,
                      IPC::PlatformFileForTransit, /* Input PDF file */
                      printing::PdfRenderSettings, /* PDF render settings */
                      // PWG transform settings.
                      printing::PwgRasterSettings,
                      IPC::PlatformFileForTransit /* Output PWG file */)
 
 // Tell the utility process to decode the given JPEG image data with a robust
 // libjpeg codec.
@@ skipping 313 matching lines @@
 IPC_MESSAGE_CONTROL2(ChromeUtilityHostMsg_GetAndEncryptWiFiCredentials,
                      std::string /* ssid */,
                      std::vector<uint8> /* public_key */)
 
 // Reply after getting WiFi credentials from the system and encrypting them with
 // caller's public key. |success| is false if error occurred.
 IPC_MESSAGE_CONTROL2(ChromeUtilityHostMsg_GotEncryptedWiFiCredentials,
                      std::vector<uint8> /* encrypted_key_data */,
                      bool /* success */)
 #endif  // defined(OS_WIN)