Print preview: A quick hack to support printing to the default printer without...

Print preview: A quick hack to support printing to the default printer without user confirmation in kiosk mode.

BUG=31395
TEST=none

Review URL: http://codereview.chromium.org/8915027

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@114605 0039d316-1c4b-4281-b951-d872f2087c98

chrome/browser/resources/print_preview/print_preview.js

@@ -53,6 +53,10 @@ var isPrintReadyMetafileReady = false;
 // True when preview tab is hidden.
 var isTabHidden = false;
 
+// True in kiosk mode where print preview can print automatically without
+// user intervention. See http://crbug.com/31395.
+var printAutomaticallyInKioskMode = false;
+
 // @type {print_preview.PrintHeader} Holds the print and cancel buttons.
 var printHeader;
 
@@ -191,6 +195,8 @@ function setInitialSettings(initialSettings) {
   }
   setDefaultPrinter(initialSettings['printerName'],
                     initialSettings['cloudPrintData']);
+  printAutomaticallyInKioskMode =
+      initialSettings['printAutomaticallyInKioskMode'];
 }
 
 /**
@@ -815,6 +821,8 @@ function onPDFLoad() {
   isFirstPageLoaded = true;
   checkAndHideOverlayLayerIfValid();
   sendPrintDocumentRequestIfNeeded();
+  if (printAutomaticallyInKioskMode)
+    printHeader.printButton.click();
 }
 
 function setPluginPreviewPageCount() {

chrome/browser/ui/webui/print_preview_handler.cc

@@ -51,7 +51,7 @@
 #include "printing/print_settings.h"
 #include "unicode/ulocdata.h"
 
-#if !defined(OS_CHROMEOS)
+#if !defined(OS_MACOSX)
 #include "base/command_line.h"
 #include "chrome/common/chrome_switches.h"
 #endif
@@ -104,6 +104,9 @@ const char kInitiatorTabTitle[] = "initiatorTabTitle";
 const char kMeasurementSystem[] = "measurementSystem";
 // Name of a dictionary field holding the number format according to the locale.
 const char kNumberFormat[] = "numberFormat";
+// Name of a dictionary field specifying whether to print automatically in
+// kiosk mode. See http://crbug.com/31395.
+const char kPrintAutomaticallyInKioskMode[] = "printAutomaticallyInKioskMode";
 
 
 // Get the print job settings dictionary from |args|. The caller takes
@@ -638,6 +641,15 @@ void PrintPreviewHandler::SendInitialSettings(
                              default_printer);
   initial_settings.SetString(kCloudPrintData, cloud_print_data);
 
+#if defined(OS_MACOSX)
+  bool kiosk_mode = false;  // No kiosk mode on Mac yet.
+#else
+  CommandLine* cmdline = CommandLine::ForCurrentProcess();
+  bool kiosk_mode = (cmdline->HasSwitch(switches::kKioskMode) &&
+                     cmdline->HasSwitch(switches::kKioskModePrinting));
+#endif
+  initial_settings.SetBoolean(kPrintAutomaticallyInKioskMode, kiosk_mode);
+
   if (print_preview_ui->source_is_modifiable()) {
     GetLastUsedMarginSettings(&initial_settings);
     GetNumberFormatAndMeasurementSystem(&initial_settings);

chrome/common/chrome_switches.cc

@@ -1270,6 +1270,10 @@ const char kUseMockKeychain[]               = "use-mock-keychain";
 #if !defined(OS_MACOSX)
 // Enables Kiosk mode.
 const char kKioskMode[]                     = "kiosk";
+
+// Print automatically in kiosk mode. |kKioskMode| must be set as well.
+// See http://crbug.com/31395.
+const char kKioskModePrinting[]             = "kiosk-printing";
 #endif
 
 #if defined(TOOLKIT_VIEWS)

chrome/common/chrome_switches.h

@@ -361,6 +361,7 @@ extern const char kUseMockKeychain[];
 
 #if !defined(OS_MACOSX)
 extern const char kKioskMode[];
+extern const char kKioskModePrinting[];
 #endif
 
 #if defined(TOOLKIT_VIEWS)