Upstream printing changes.

android_webview/renderer/print_web_view_helper.cc

Index: android_webview/renderer/print_web_view_helper.cc
diff --git a/chrome/renderer/printing/print_web_view_helper.cc b/android_webview/renderer/print_web_view_helper.cc
similarity index 98%
copy from chrome/renderer/printing/print_web_view_helper.cc
copy to android_webview/renderer/print_web_view_helper.cc
index c891b250fe4f7cf38a8663fabc339c1706bddefd..7ea4b71b124b6bad7afbbfdde87f25e50ae93928 100644
--- a/chrome/renderer/printing/print_web_view_helper.cc
+++ b/android_webview/renderer/print_web_view_helper.cc
@@ -1,11 +1,14 @@
-// Copyright (c) 2012 The Chromium Authors. All rights reserved.
+// Copyright (c) 2013 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.
 
-#include "chrome/renderer/printing/print_web_view_helper.h"
+// TODO(sgurun) copied from chrome/renderer. Remove after crbug.com/322276
+
+#include "android_webview/renderer/print_web_view_helper.h"
 
 #include <string>
 
+#include "android_webview/common/print_messages.h"
 #include "base/auto_reset.h"
 #include "base/command_line.h"
 #include "base/json/json_writer.h"
@@ -16,15 +19,9 @@
 #include "base/strings/string_number_conversions.h"
 #include "base/strings/stringprintf.h"
 #include "base/strings/utf_string_conversions.h"
-#include "chrome/common/chrome_switches.h"
-#include "chrome/common/print_messages.h"
-#include "chrome/common/render_messages.h"
-#include "chrome/renderer/prerender/prerender_helper.h"
 #include "content/public/renderer/render_thread.h"
 #include "content/public/renderer/render_view.h"
 #include "content/public/renderer/web_preferences.h"
-#include "grit/browser_resources.h"
-#include "grit/generated_resources.h"
 #include "net/base/escape.h"
 #include "printing/metafile.h"
 #include "printing/metafile_impl.h"
@@ -49,6 +46,11 @@
 #include "ui/base/resource/resource_bundle.h"
 #include "webkit/common/webpreferences.h"
 
+// This code is copied from chrome/renderer/printing. Code is slightly
+// modified to run it with webview, and the modifications are marked
+// using OS_ANDROID.
+// TODO(sgurun): remove the code as part of componentization of printing.
+
 namespace printing {
 
 namespace {
@@ -63,6 +65,8 @@ enum PrintPreviewHelperEvents {
 
 const double kMinDpi = 1.0;
 
+#if 0
+// TODO(sgurun) android_webview hack
 const char kPageLoadScriptFormat[] =
     "document.open(); document.write(%s); document.close();";
 
@@ -76,6 +80,7 @@ void ExecuteScript(blink::WebFrame* frame,
   std::string script = base::StringPrintf(script_format, json.c_str());
   frame->executeScript(blink::WebString(UTF8ToUTF16(script)));
 }
+#endif
 
 int GetDPI(const PrintMsg_Print_Params* print_params) {
 #if defined(OS_MACOSX)
@@ -365,13 +370,11 @@ PrintMsg_Print_Params CalculatePrintParamsForCss(
 }
 
 bool IsPrintPreviewEnabled() {
-  return CommandLine::ForCurrentProcess()->HasSwitch(
-      switches::kRendererPrintPreview);
+  return false;
 }
 
 bool IsPrintThrottlingDisabled() {
-  return CommandLine::ForCurrentProcess()->HasSwitch(
-      switches::kDisableScriptedPrintThrottling);
+  return true;
 }
 
 }  // namespace
@@ -414,6 +417,8 @@ void PrintWebViewHelper::PrintHeaderAndFooter(
     const PageSizeMargins& page_layout,
     const base::DictionaryValue& header_footer_info,
     const PrintMsg_Print_Params& params) {
+#if 0
+  // TODO(sgurun) android_webview hack
   skia::VectorPlatformDeviceSkia* device =
       static_cast<skia::VectorPlatformDeviceSkia*>(canvas->getTopDevice());
   device->setDrawingArea(SkPDFDevice::kMargin_DrawingArea);
@@ -451,13 +456,14 @@ void PrintWebViewHelper::PrintHeaderAndFooter(
   blink::WebPrintParams webkit_params(page_size);
   webkit_params.printerDPI = GetDPI(&params);
 
-  frame->printBegin(webkit_params);
+  frame->printBegin(webkit_params, WebKit::WebNode(), NULL);
   frame->printPage(0, canvas);
   frame->printEnd();
 
   web_view->close();
 
   device->setDrawingArea(SkPDFDevice::kContent_DrawingArea);
+#endif
 }
 
 // static - Not anonymous so that platform implementations can use it.
@@ -720,6 +726,8 @@ PrintWebViewHelper::PrintWebViewHelper(content::RenderView* render_view)
       is_loading_(false),
       is_scripted_preview_delayed_(false),
       weak_ptr_factory_(this) {
+  // TODO(sgurun) enable window.print() for webview crbug.com/322303
+  SetScriptedPrintBlocked(true);
 }
 
 PrintWebViewHelper::~PrintWebViewHelper() {}
@@ -756,11 +764,14 @@ void PrintWebViewHelper::PrintPage(blink::WebFrame* frame,
                                    bool user_initiated) {
   DCHECK(frame);
 
+#if !defined(OS_ANDROID)
+  // TODO(sgurun) android_webview hack
   // Allow Prerendering to cancel this print request if necessary.
   if (prerender::PrerenderHelper::IsPrerendering(render_view())) {
     Send(new ChromeViewHostMsg_CancelPrerenderForPrinting(routing_id()));
     return;
   }
+#endif  // !defined(OS_ANDROID)
 
   if (!IsScriptInitiatedPrintAllowed(frame, user_initiated))
     return;
@@ -1095,6 +1106,7 @@ bool PrintWebViewHelper::FinalizePrintReadyDocument() {
   DCHECK_GT(buf_size, 0u);
 
   PrintHostMsg_DidPreviewDocument_Params preview_params;
+  preview_params.reuse_existing_data = false;
   preview_params.data_size = buf_size;
   preview_params.document_cookie = print_pages_params_->params.document_cookie;
   preview_params.expected_pages_count =
@@ -1197,12 +1209,15 @@ void PrintWebViewHelper::Print(blink::WebFrame* frame,
     return;
   }
 
+#if !defined(OS_ANDROID)
+  // TODO(sgurun) android_webview hack
   // Ask the browser to show UI to retrieve the final print settings.
   if (!GetPrintSettingsFromUser(frame_ref.GetFrame(), node,
                                 expected_page_count)) {
     DidFinishPrinting(OK);  // Release resources and fail silently.
     return;
   }
+#endif  // !defined(OS_ANDROID)
 
   // Render Pages for printing.
   if (!RenderPagesForPrint(frame_ref.GetFrame(), node)) {
@@ -1241,6 +1256,7 @@ void PrintWebViewHelper::DidFinishPrinting(PrintingResult result) {
       print_preview_context_.Failed(notify_browser_of_print_failure_);
       break;
   }
+
   prep_frame_view_.reset();
   print_pages_params_.reset();
   notify_browser_of_print_failure_ = true;
@@ -1379,9 +1395,12 @@ bool PrintWebViewHelper::CalculateNumberOfPages(blink::WebFrame* frame,
   bool fit_to_paper_size = !(PrintingNodeOrPdfFrame(frame, node));
   if (!InitPrintSettings(fit_to_paper_size)) {
     notify_browser_of_print_failure_ = false;
+#if !defined(OS_ANDROID)
+    // TODO(sgurun) android_webview hack
     render_view()->RunModalAlertDialog(
         frame,
         l10n_util::GetStringUTF16(IDS_PRINT_PREVIEW_INVALID_PRINTER_SETTINGS));
+#endif  //  !defined(OS_ANDROID)
     return false;
   }
 
@@ -1437,6 +1456,8 @@ bool PrintWebViewHelper::UpdatePrintSettings(
     if (!print_for_preview_) {
       print_preview_context_.set_error(PREVIEW_ERROR_INVALID_PRINTER_SETTINGS);
     } else {
+#if !defined(OS_ANDROID)
+      // TODO(sgurun) android_webview hack
       // PrintForPrintPreview
       blink::WebFrame* print_frame = NULL;
       // This may not be the right frame, but the alert will be modal,
@@ -1448,6 +1469,7 @@ bool PrintWebViewHelper::UpdatePrintSettings(
             l10n_util::GetStringUTF16(
                 IDS_PRINT_PREVIEW_INVALID_PRINTER_SETTINGS));
       }
+#endif  // !defined(OS_ANDROID)
     }
     return false;
   }
@@ -1617,7 +1639,6 @@ void PrintWebViewHelper::IncrementScriptedPrintCount() {
   last_cancelled_script_print_ = base::Time::Now();
 }
 
-
 void PrintWebViewHelper::ShowScriptedPrintPreview() {
   if (is_scripted_preview_delayed_) {
     is_scripted_preview_delayed_ = false;