Initial support for cloudprint in print preview

chrome/browser/ui/webui/print_preview_handler.cc

Index: chrome/browser/ui/webui/print_preview_handler.cc
diff --git a/chrome/browser/ui/webui/print_preview_handler.cc b/chrome/browser/ui/webui/print_preview_handler.cc
index 65b4103f956fb33f3e7e1b1b3fa85cef7ddb3ad6..1f387f02552fa096dc2e3bb357629d83af1e4a34 100644
--- a/chrome/browser/ui/webui/print_preview_handler.cc
+++ b/chrome/browser/ui/webui/print_preview_handler.cc
@@ -6,6 +6,7 @@
 
 #include <string>
 
+#include "base/base64.h"
 #include "base/i18n/file_util_icu.h"
 #include "base/json/json_reader.h"
 #include "base/memory/ref_counted.h"
@@ -18,6 +19,7 @@
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/platform_util.h"
 #include "chrome/browser/printing/background_printing_manager.h"
+#include "chrome/browser/printing/cloud_print/cloud_print_url.h"
 #include "chrome/browser/printing/printer_manager_dialog.h"
 #include "chrome/browser/printing/print_preview_tab_controller.h"
 #include "chrome/browser/tabs/tab_strip_model.h"
@@ -35,6 +37,11 @@
 #include "printing/page_range.h"
 #include "printing/print_job_constants.h"
 
+#if !defined(OS_CHROMEOS)
+#include "base/command_line.h"
+#include "chrome/common/chrome_switches.h"
+#endif
+
 #if defined(USE_CUPS)
 #include <cups/cups.h>
 
@@ -232,13 +239,14 @@ class PrintSystemTaskProxy
     BrowserThread::PostTask(
         BrowserThread::UI, FROM_HERE,
         NewRunnableMethod(this,
-                          &PrintSystemTaskProxy::SendPrinterList,
+                          &PrintSystemTaskProxy::SetupPrinterList,
                           printers));
   }
 
-  void SendPrinterList(ListValue* printers) {
-    if (handler_)
-      handler_->SendPrinterList(*printers);
+  void SetupPrinterList(ListValue* printers) {
+    if (handler_) {
+      handler_->SetupPrinterList(*printers);
+    }
     delete printers;
   }
 
@@ -374,7 +382,15 @@ void PrintPreviewHandler::RegisterMessages() {
       NewCallback(this, &PrintPreviewHandler::HandleGetPrinterCapabilities));
   web_ui_->RegisterMessageCallback("showSystemDialog",
       NewCallback(this, &PrintPreviewHandler::HandleShowSystemDialog));
-  web_ui_->RegisterMessageCallback("managePrinters",
+  web_ui_->RegisterMessageCallback("morePrinters",
+      NewCallback(this, &PrintPreviewHandler::HandleShowSystemDialog));
+  web_ui_->RegisterMessageCallback("signIn",
+      NewCallback(this, &PrintPreviewHandler::HandleManageCloudPrint));
+  web_ui_->RegisterMessageCallback("addPrinter",
+      NewCallback(this, &PrintPreviewHandler::HandleManageCloudPrint));
+  web_ui_->RegisterMessageCallback("manageCloudPrinters",
+      NewCallback(this, &PrintPreviewHandler::HandleManageCloudPrint));
+  web_ui_->RegisterMessageCallback("manageLocalPrinters",
       NewCallback(this, &PrintPreviewHandler::HandleManagePrinters));
   web_ui_->RegisterMessageCallback("closePrintPreviewTab",
       NewCallback(this, &PrintPreviewHandler::HandleClosePreviewTab));
@@ -434,7 +450,6 @@ void PrintPreviewHandler::HandleGetPreview(const ListValue* args) {
 
 void PrintPreviewHandler::HandlePrint(const ListValue* args) {
   ReportStats();
-
   // Record the number of times the user requests to regenerate preview data
   // before printing.
   UMA_HISTOGRAM_COUNTS("PrintPreview.RegeneratePreviewRequest.BeforePrint",
@@ -462,7 +477,12 @@ void PrintPreviewHandler::HandlePrint(const ListValue* args) {
   TabContentsWrapper* preview_tab_wrapper =
       TabContentsWrapper::GetCurrentWrapperForContents(preview_tab());
 
-  if (print_to_pdf) {
+  bool print_to_cloud = settings->HasKey(printing::kSettingCloudPrintId);
+  if (print_to_cloud) {
+    std::string print_ticket;
+    args->GetString(1, &print_ticket);
+    SendCloudPrintJob(*settings, print_ticket);
+  } else if (print_to_pdf) {
     ReportUserActionHistogram(PRINT_TO_PDF);
     UMA_HISTOGRAM_COUNTS("PrintPreview.PageCount.PrintToPDF",
                          GetPageCountFromSettingsDictionary(*settings));
@@ -523,6 +543,15 @@ void PrintPreviewHandler::HandleGetPrinterCapabilities(
                         printer_name));
 }
 
+void PrintPreviewHandler::HandleManageCloudPrint(const ListValue* args) {
+  Browser* browser = BrowserList::GetLastActive();
+  browser->OpenURL(CloudPrintURL(browser->profile()).
+                   GetCloudPrintServiceManageURL(),
+                   GURL(),
+                   NEW_FOREGROUND_TAB,
+                   PageTransition::LINK);
+}
+
 void PrintPreviewHandler::HandleShowSystemDialog(const ListValue* args) {
   ReportStats();
   ReportUserActionHistogram(FALLBACK_TO_ADVANCED_SETTINGS_DIALOG);
@@ -580,8 +609,80 @@ void PrintPreviewHandler::SendDefaultPrinter(
   web_ui_->CallJavascriptFunction("setDefaultPrinter", default_printer);
 }
 
-void PrintPreviewHandler::SendPrinterList(const ListValue& printers) {
-  web_ui_->CallJavascriptFunction("setPrinters", printers);
+void PrintPreviewHandler::SetupPrinterList(const ListValue& printers) {
+  SendCloudPrintEnabled();
+  web_ui_->CallJavascriptFunction("setPrinters", printers,
+                                  *(Value::CreateBooleanValue(true)));
+}
+
+void PrintPreviewHandler::SendCloudPrintEnabled() {
+#if defined(OS_CHROMEOS)
+  bool enable_cloud_print_integration = true;
+#else
+  bool enable_cloud_print_integration =
+      CommandLine::ForCurrentProcess()->HasSwitch(switches::kEnableCloudPrint);
+#endif
+  GURL gcp_url(CloudPrintURL(BrowserList::GetLastActive()->profile()).
+               GetCloudPrintServiceURL());
+  if (enable_cloud_print_integration) {
+    RenderViewHost* rvh = web_ui_->GetRenderViewHost();
+    rvh->Send(new PrintMsg_PrintSetupWhitelist(rvh->routing_id(),
+                                               gcp_url.host()));
+  }
+  FundamentalValue enable(enable_cloud_print_integration);
+  StringValue gcp_url_value(gcp_url.spec());
+  web_ui_->CallJavascriptFunction("setUseCloudPrint", enable, gcp_url_value);
+}
+
+void PrintPreviewHandler::SendCloudPrintJob(const DictionaryValue& settings,
+                                            std::string print_ticket) {
+  scoped_refptr<RefCountedBytes> data;
+  PrintPreviewUI* print_preview_ui = static_cast<PrintPreviewUI*>(web_ui_);
+  print_preview_ui->GetPrintPreviewData(&data);
+  CHECK(data->front());
+  DCHECK_GT(data->size(), 0U);
+
+  // BASE64 encode the job data.
+  std::string raw_data(reinterpret_cast<const char*>(data->front()),
+                       data->size());
+  std::string base64_data;
+  if (!base::Base64Encode(raw_data, &base64_data)) {
+    NOTREACHED() << "Base64 encoding PDF data.";
+  }
+
+  TabContentsWrapper* wrapper =
+      TabContentsWrapper::GetCurrentWrapperForContents(preview_tab());
+  string16 print_job_title_utf16 =
+      wrapper->print_view_manager()->RenderSourceName();
+  std::string print_job_title = UTF16ToUTF8(print_job_title_utf16);
+  std::string printer_id;
+  settings.GetString("cloudPrintID", &printer_id);
+
+  const char prolog[] = "------CloudPrintFormBoundaryjc9wuprokl8i\r\n"
+    "Content-Disposition: form-data; name=\"capabilities\"\r\n\r\n%s\r\n"
+    "------CloudPrintFormBoundaryjc9wuprokl8i\r\n"
+    "Content-Disposition: form-data; name=\"contentType\"\r\n\r\ndataUrl\r\n"
+    "------CloudPrintFormBoundaryjc9wuprokl8i\r\n"
+    "Content-Disposition: form-data; name=\"title\"\r\n\r\n%s\r\n"
+    "------CloudPrintFormBoundaryjc9wuprokl8i\r\n"
+    "Content-Disposition: form-data; name=\"printerid\"\r\n\r\n%s\r\n"
+    "------CloudPrintFormBoundaryjc9wuprokl8i\r\n"
+    "Content-Disposition: form-data; name=\"content\"\r\n\r\n"
+    "data:application/pdf;base64,%s\r\n"
+    "------CloudPrintFormBoundaryjc9wuprokl8i\r\n";
+
+  std::string final_data;
+  base::SStringPrintf(&final_data,
+                      prolog,
+                      print_ticket.c_str(),
+                      print_job_title.c_str(),
+                      printer_id.c_str(),
+                      base64_data.c_str());
+
+  StringValue data_value(final_data);
+
+  web_ui_->CallJavascriptFunction("printToCloud",
+                                  data_value);
 }
 
 TabContents* PrintPreviewHandler::GetInitiatorTab() {
@@ -593,6 +694,11 @@ TabContents* PrintPreviewHandler::GetInitiatorTab() {
 }
 
 void PrintPreviewHandler::ClosePrintPreviewTab() {
+  RenderViewHost* rvh = web_ui_->GetRenderViewHost();
+  GURL gcp_url(CloudPrintURL(BrowserList::GetLastActive()->profile()).
+               GetCloudPrintServiceURL());
+  rvh->Send(new PrintMsg_PrintTeardownWhitelist(rvh->routing_id(),
+                                                gcp_url.host()));
   Browser* preview_tab_browser = BrowserList::FindBrowserWithID(
       preview_tab()->controller().window_id().id());
   if (!preview_tab_browser)