Print support for Windows Metro...

chrome/browser/ui/browser.cc

Index: chrome/browser/ui/browser.cc
diff --git a/chrome/browser/ui/browser.cc b/chrome/browser/ui/browser.cc
index b92d4094b1ed9162f45703387239297573ed48db..98e2619d25efc74bc381fcba9a15f254eb51fb5e 100644
--- a/chrome/browser/ui/browser.cc
+++ b/chrome/browser/ui/browser.cc
@@ -26,6 +26,7 @@
 #include "base/threading/thread_restrictions.h"
 #include "base/time.h"
 #include "base/utf_string_conversions.h"
+#include "base/win/metro.h"

[Albert Bodenhamer, 2012/06/15 18:41:24]

Safe to include this here?

[MAD, 2012/06/19 14:24:10]

Right, I need to wrap it within #if defined (OS_WIN). Thanks!

[MAD, 2012/06/28 15:48:14]

Done.

 #include "chrome/app/chrome_command_ids.h"
 #include "chrome/browser/autofill/personal_data_manager_factory.h"
 #include "chrome/browser/background/background_contents_service.h"
@@ -179,6 +180,7 @@
 #include "net/base/registry_controlled_domain.h"
 #include "net/cookies/cookie_monster.h"
 #include "net/url_request/url_request_context.h"
+#include "printing/printed_document.h"
 #include "ui/base/animation/animation.h"
 #include "ui/base/l10n/l10n_util.h"
 #include "ui/gfx/point.h"
@@ -1616,6 +1618,47 @@ void Browser::AdvancedPrint() {
   GetActiveTabContents()->print_view_manager()->AdvancedPrintNow();
 }
 
+void Browser::PrintToDelegate() {

[Albert Bodenhamer, 2012/06/15 18:41:24]

Does this need to live in browser?  If you pull MetroPrintingDelegate into its
own file you can just have whoever calls this call
GetActiveTabContents()->print_view_manager()->PrintToDelegate directly.

[MAD, 2012/06/19 14:24:10]

Good point, will move it to a more sensible place... Thanks!

[MAD, 2012/06/28 15:48:14]

Actually, I would look the interface pointer to come with the message, so we
would need to pass it to the print_view_manager from here (unless we handle the
message somewhere else)... I agree that for now we can move this elsewhere,
we'll adapt it in a subsequent iteration...

+  scoped_refptr<printing::PrintedDocument::Delegate> printed_document_delegate;
+#if defined(OS_WIN)
+  class MetroPrintingDelegate : public printing::PrintedDocument::Delegate {

[Albert Bodenhamer, 2012/06/15 18:41:24]

Pull this into its own .cc/.h

[MAD, 2012/06/19 14:24:10]

Yep, will do...

[MAD, 2012/06/28 15:48:14]

Done.

+   public:
+    MetroPrintingDelegate()
+        : metro_set_print_page_count_(NULL),
+          metro_set_print_page_content_(NULL) {
+      HMODULE metro_module = base::win::GetMetroModule();
+      if (metro_module != NULL) {
+        metro_set_print_page_count_ =
+            reinterpret_cast<MetroSetPrintPageCount>(
+                ::GetProcAddress(metro_module, "MetroSetPrintPageCount"));
+        metro_set_print_page_content_ =
+            reinterpret_cast<MetroSetPrintPageContent>(
+                ::GetProcAddress(metro_module, "MetroSetPrintPageContent"));
+      }
+    }
+    virtual void SetPageCount(int page_count) {
+      if (metro_set_print_page_count_)
+        metro_set_print_page_count_(page_count);
+    }
+
+    virtual void SetPageContent(int page_number,
+                                void* content,
+                                size_t content_size) {
+      if (metro_set_print_page_content_)
+        metro_set_print_page_content_(page_number - 1, content, content_size);
+    }
+   private:
+    typedef void (*MetroSetPrintPageCount)(INT);
+    typedef void (*MetroSetPrintPageContent)(INT, VOID*, UINT32);
+    MetroSetPrintPageCount metro_set_print_page_count_;
+    MetroSetPrintPageContent metro_set_print_page_content_;
+  };
+  printed_document_delegate = new MetroPrintingDelegate();
+#endif  // defined(OS_WIN)
+  GetActiveTabContents()->print_view_manager()->PrintToDelegate(
+      printed_document_delegate.get());
+}
+
 void Browser::EmailPageLocation() {
   content::RecordAction(UserMetricsAction("EmailPageLocation"));
   WebContents* wc = GetActiveWebContents();
@@ -2516,6 +2559,7 @@ void Browser::ExecuteCommandWithDisposition(
     case IDC_VIEW_SOURCE:           ViewSelectedSource();             break;
     case IDC_EMAIL_PAGE_LOCATION:   EmailPageLocation();              break;
     case IDC_PRINT:                 Print();                          break;
+    case IDC_PRINT_TO_FILE :        PrintToDelegate();                break;
     case IDC_ADVANCED_PRINT:        AdvancedPrint();                  break;
     case IDC_CHROME_TO_MOBILE_PAGE: ShowChromeToMobileBubble();       break;
     case IDC_ENCODING_AUTO_DETECT:  ToggleEncodingAutoDetect();       break;
@@ -4458,6 +4502,7 @@ void Browser::UpdatePrintingState(int content_restrictions) {
   command_updater_.UpdateCommandEnabled(IDC_PRINT, print_enabled);
   command_updater_.UpdateCommandEnabled(IDC_ADVANCED_PRINT,
                                         advanced_print_enabled);
+  command_updater_.UpdateCommandEnabled(IDC_PRINT_TO_FILE, print_enabled);
 }
 
 void Browser::UpdateSaveAsState(int content_restrictions) {