Adds option to enable CSS backgrounds for printing.

chrome/browser/ui/webui/print_preview/print_preview_data_source.cc

Index: chrome/browser/ui/webui/print_preview/print_preview_data_source.cc
diff --git a/chrome/browser/ui/webui/print_preview/print_preview_data_source.cc b/chrome/browser/ui/webui/print_preview/print_preview_data_source.cc
new file mode 100644
index 0000000000000000000000000000000000000000..c74bc63f78afc67d4ca5ede15e3fda63f79e4158
--- /dev/null
+++ b/chrome/browser/ui/webui/print_preview/print_preview_data_source.cc
@@ -0,0 +1,227 @@
+// 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.
+
+#include "chrome/browser/ui/webui/print_preview/print_preview_data_source.h"
+
+#include <algorithm>
+#include <vector>
+
+#include "base/memory/ref_counted_memory.h"
+#include "base/message_loop.h"
+#include "base/string_number_conversions.h"
+#include "base/string_piece.h"
+#include "base/string_split.h"
+#include "base/string_util.h"
+#include "base/utf_string_conversions.h"
+#include "base/values.h"
+#include "chrome/browser/printing/print_preview_data_service.h"
+#include "chrome/common/url_constants.h"
+#include "grit/browser_resources.h"
+#include "grit/chromium_strings.h"
+#include "grit/generated_resources.h"
+#include "grit/google_chrome_strings.h"
+#include "ui/base/l10n/l10n_util.h"
+
+namespace {
+
+#if defined(OS_MACOSX)
+// U+0028 U+21E7 U+2318 U+0050 U+0029 in UTF8
+const char kAdvancedPrintShortcut[] = "\x28\xE2\x8c\xA5\xE2\x8C\x98\x50\x29";
+#elif defined(OS_WIN)
+const char kAdvancedPrintShortcut[] = "(Ctrl+Shift+P)";
+#else
+const char kAdvancedPrintShortcut[] = "(Shift+Ctrl+P)";
+#endif
+
+};  // namespace
+
+PrintPreviewDataSource::PrintPreviewDataSource()
+    : ChromeWebUIDataSource(chrome::kChromeUIPrintHost) {
+  Init();
+}
+
+void PrintPreviewDataSource::Init() {
+#if defined(OS_CHROMEOS)
+  AddLocalizedString("title", IDS_PRINT_PREVIEW_GOOGLE_CLOUD_PRINT_TITLE);
+#else
+  AddLocalizedString("title", IDS_PRINT_PREVIEW_TITLE);
+#endif
+  AddLocalizedString("loading", IDS_PRINT_PREVIEW_LOADING);
+  AddLocalizedString("noPlugin", IDS_PRINT_PREVIEW_NO_PLUGIN);
+  AddLocalizedString("launchNativeDialog", IDS_PRINT_PREVIEW_NATIVE_DIALOG);
+  AddLocalizedString("previewFailed", IDS_PRINT_PREVIEW_FAILED);
+  AddLocalizedString("invalidPrinterSettings",
+                     IDS_PRINT_PREVIEW_INVALID_PRINTER_SETTINGS);
+  AddLocalizedString("printButton", IDS_PRINT_PREVIEW_PRINT_BUTTON);
+  AddLocalizedString("saveButton", IDS_PRINT_PREVIEW_SAVE_BUTTON);
+  AddLocalizedString("cancelButton", IDS_PRINT_PREVIEW_CANCEL_BUTTON);
+  AddLocalizedString("printing", IDS_PRINT_PREVIEW_PRINTING);
+  AddLocalizedString("printingToPDFInProgress",
+                     IDS_PRINT_PREVIEW_PRINTING_TO_PDF_IN_PROGRESS);
+#if defined(OS_MACOSX)
+  AddLocalizedString("openingPDFInPreview",
+                     IDS_PRINT_PREVIEW_OPENING_PDF_IN_PREVIEW);
+#endif
+  AddLocalizedString("destinationLabel", IDS_PRINT_PREVIEW_DESTINATION_LABEL);
+  AddLocalizedString("copiesLabel", IDS_PRINT_PREVIEW_COPIES_LABEL);
+  AddLocalizedString("examplePageRangeText",
+                     IDS_PRINT_PREVIEW_EXAMPLE_PAGE_RANGE_TEXT);
+  AddLocalizedString("layoutLabel", IDS_PRINT_PREVIEW_LAYOUT_LABEL);
+  AddLocalizedString("optionAllPages", IDS_PRINT_PREVIEW_OPTION_ALL_PAGES);
+  AddLocalizedString("optionBw", IDS_PRINT_PREVIEW_OPTION_BW);
+  AddLocalizedString("optionCollate", IDS_PRINT_PREVIEW_OPTION_COLLATE);
+  AddLocalizedString("optionColor", IDS_PRINT_PREVIEW_OPTION_COLOR);
+  AddLocalizedString("optionLandscape", IDS_PRINT_PREVIEW_OPTION_LANDSCAPE);
+  AddLocalizedString("optionPortrait", IDS_PRINT_PREVIEW_OPTION_PORTRAIT);
+  AddLocalizedString("optionTwoSided", IDS_PRINT_PREVIEW_OPTION_TWO_SIDED);
+  AddLocalizedString("pagesLabel", IDS_PRINT_PREVIEW_PAGES_LABEL);
+  AddLocalizedString("pageRangeTextBox", IDS_PRINT_PREVIEW_PAGE_RANGE_TEXT);
+  AddLocalizedString("pageRangeRadio", IDS_PRINT_PREVIEW_PAGE_RANGE_RADIO);
+  AddLocalizedString("printToPDF", IDS_PRINT_PREVIEW_PRINT_TO_PDF);
+  AddLocalizedString("printPreviewSummaryFormatShort",
+                     IDS_PRINT_PREVIEW_SUMMARY_FORMAT_SHORT);
+  AddLocalizedString("printPreviewSummaryFormatLong",
+                     IDS_PRINT_PREVIEW_SUMMARY_FORMAT_LONG);
+  AddLocalizedString("printPreviewSheetsLabelSingular",
+                     IDS_PRINT_PREVIEW_SHEETS_LABEL_SINGULAR);
+  AddLocalizedString("printPreviewSheetsLabelPlural",
+                     IDS_PRINT_PREVIEW_SHEETS_LABEL_PLURAL);
+  AddLocalizedString("printPreviewPageLabelSingular",
+                     IDS_PRINT_PREVIEW_PAGE_LABEL_SINGULAR);
+  AddLocalizedString("printPreviewPageLabelPlural",
+                     IDS_PRINT_PREVIEW_PAGE_LABEL_PLURAL);
+  const string16 shortcut_text(UTF8ToUTF16(kAdvancedPrintShortcut));
+#if defined(OS_CHROMEOS)
+  AddString("systemDialogOption", l10n_util::GetStringFUTF16(
+      IDS_PRINT_PREVIEW_CLOUD_DIALOG_OPTION,
+      l10n_util::GetStringUTF16(IDS_GOOGLE_CLOUD_PRINT),
+      shortcut_text));
+#else
+  AddString("systemDialogOption", l10n_util::GetStringFUTF16(
+      IDS_PRINT_PREVIEW_SYSTEM_DIALOG_OPTION,
+      shortcut_text));
+#endif
+  AddString("cloudPrintDialogOption",
+            l10n_util::GetStringFUTF16(
+                IDS_PRINT_PREVIEW_CLOUD_DIALOG_OPTION_NO_SHORTCUT,
+                l10n_util::GetStringUTF16(IDS_GOOGLE_CLOUD_PRINT)));
+#if defined(OS_MACOSX)
+  AddLocalizedString("openPdfInPreviewOption",
+                     IDS_PRINT_PREVIEW_OPEN_PDF_IN_PREVIEW_APP);
+#endif
+  AddString("printWithCloudPrintWait", l10n_util::GetStringFUTF16(
+      IDS_PRINT_PREVIEW_PRINT_WITH_CLOUD_PRINT_WAIT,
+      l10n_util::GetStringUTF16(IDS_GOOGLE_CLOUD_PRINT)));
+  AddLocalizedString("pageRangeInstruction",
+                     IDS_PRINT_PREVIEW_PAGE_RANGE_INSTRUCTION);
+  AddLocalizedString("copiesInstruction", IDS_PRINT_PREVIEW_COPIES_INSTRUCTION);
+  AddLocalizedString("incrementTitle", IDS_PRINT_PREVIEW_INCREMENT_TITLE);
+  AddLocalizedString("decrementTitle", IDS_PRINT_PREVIEW_DECREMENT_TITLE);
+  AddLocalizedString("printPagesLabel", IDS_PRINT_PREVIEW_PRINT_PAGES_LABEL);
+  AddLocalizedString("optionsLabel", IDS_PRINT_PREVIEW_OPTIONS_LABEL);
+  AddLocalizedString("optionHeaderFooter",
+                     IDS_PRINT_PREVIEW_OPTION_HEADER_FOOTER);
+  AddLocalizedString("optionFitToPage",
+                     IDS_PRINT_PREVIEW_OPTION_FIT_TO_PAGE);
+  AddLocalizedString("optionBackgroundColorsAndImages",
+                     IDS_PRINT_PREVIEW_OPTION_BACKGROUND_COLORS_AND_IMAGES);
+  AddLocalizedString("marginsLabel", IDS_PRINT_PREVIEW_MARGINS_LABEL);
+  AddLocalizedString("defaultMargins", IDS_PRINT_PREVIEW_DEFAULT_MARGINS);
+  AddLocalizedString("noMargins", IDS_PRINT_PREVIEW_NO_MARGINS);
+  AddLocalizedString("customMargins", IDS_PRINT_PREVIEW_CUSTOM_MARGINS);
+  AddLocalizedString("minimumMargins", IDS_PRINT_PREVIEW_MINIMUM_MARGINS);
+  AddLocalizedString("top", IDS_PRINT_PREVIEW_TOP_MARGIN_LABEL);
+  AddLocalizedString("bottom", IDS_PRINT_PREVIEW_BOTTOM_MARGIN_LABEL);
+  AddLocalizedString("left", IDS_PRINT_PREVIEW_LEFT_MARGIN_LABEL);
+  AddLocalizedString("right", IDS_PRINT_PREVIEW_RIGHT_MARGIN_LABEL);
+  AddLocalizedString("destinationSearchTitle",
+                     IDS_PRINT_PREVIEW_DESTINATION_SEARCH_TITLE);
+  AddLocalizedString("userInfo", IDS_PRINT_PREVIEW_USER_INFO);
+  AddLocalizedString("cloudPrintPromotion",
+                     IDS_PRINT_PREVIEW_CLOUD_PRINT_PROMOTION);
+  AddLocalizedString("searchBoxPlaceholder",
+                     IDS_PRINT_PREVIEW_SEARCH_BOX_PLACEHOLDER);
+  AddLocalizedString("noDestinationsMessage",
+                     IDS_PRINT_PREVIEW_NO_DESTINATIONS_MESSAGE);
+  AddLocalizedString("showAllButtonText",
+                     IDS_PRINT_PREVIEW_SHOW_ALL_BUTTON_TEXT);
+  AddLocalizedString("destinationCount", IDS_PRINT_PREVIEW_DESTINATION_COUNT);
+  AddLocalizedString("recentDestinationsTitle",
+                     IDS_PRINT_PREVIEW_RECENT_DESTINATIONS_TITLE);
+  AddLocalizedString("localDestinationsTitle",
+                     IDS_PRINT_PREVIEW_LOCAL_DESTINATIONS_TITLE);
+  AddLocalizedString("cloudDestinationsTitle",
+                     IDS_PRINT_PREVIEW_CLOUD_DESTINATIONS_TITLE);
+  AddLocalizedString("manage", IDS_PRINT_PREVIEW_MANAGE);
+  AddLocalizedString("setupCloudPrinters",
+                     IDS_PRINT_PREVIEW_SETUP_CLOUD_PRINTERS);
+  AddLocalizedString("changeDestination",
+                     IDS_PRINT_PREVIEW_CHANGE_DESTINATION);
+  AddLocalizedString("offlineForYear", IDS_PRINT_PREVIEW_OFFLINE_FOR_YEAR);
+  AddLocalizedString("offlineForMonth", IDS_PRINT_PREVIEW_OFFLINE_FOR_MONTH);
+  AddLocalizedString("offlineForWeek", IDS_PRINT_PREVIEW_OFFLINE_FOR_WEEK);
+  AddLocalizedString("offline", IDS_PRINT_PREVIEW_OFFLINE);
+  AddLocalizedString("fedexTos", IDS_PRINT_PREVIEW_FEDEX_TOS);
+  AddLocalizedString("tosCheckboxLabel", IDS_PRINT_PREVIEW_TOS_CHECKBOX_LABEL);
+  AddLocalizedString("noDestsPromoTitle",
+                     IDS_PRINT_PREVIEW_NO_DESTS_PROMO_TITLE);
+  AddLocalizedString("noDestsPromoBody", IDS_PRINT_PREVIEW_NO_DESTS_PROMO_BODY);
+  AddLocalizedString("noDestsPromoGcpDesc",
+                     IDS_PRINT_PREVIEW_NO_DESTS_GCP_DESC);
+  AddLocalizedString("noDestsPromoAddPrinterButtonLabel",
+                     IDS_PRINT_PREVIEW_NO_DESTS_PROMO_ADD_PRINTER_BUTTON_LABEL);
+  AddLocalizedString("noDestsPromoNotNowButtonLabel",
+                     IDS_PRINT_PREVIEW_NO_DESTS_PROMO_NOT_NOW_BUTTON_LABEL);
+
+  set_json_path("strings.js");
+  add_resource_path("print_preview.js", IDR_PRINT_PREVIEW_JS);
+  add_resource_path("images/printer.png", IDR_PRINT_PREVIEW_IMAGES_PRINTER);
+  add_resource_path("images/printer_shared.png",
+                    IDR_PRINT_PREVIEW_IMAGES_PRINTER_SHARED);
+  add_resource_path("images/third_party.png",
+                    IDR_PRINT_PREVIEW_IMAGES_THIRD_PARTY);
+  add_resource_path("images/third_party_fedex.png",
+                    IDR_PRINT_PREVIEW_IMAGES_THIRD_PARTY_FEDEX);
+  add_resource_path("images/google_doc.png",
+                    IDR_PRINT_PREVIEW_IMAGES_GOOGLE_DOC);
+  add_resource_path("images/pdf.png", IDR_PRINT_PREVIEW_IMAGES_PDF);
+  add_resource_path("images/mobile.png", IDR_PRINT_PREVIEW_IMAGES_MOBILE);
+  add_resource_path("images/mobile_shared.png",
+                    IDR_PRINT_PREVIEW_IMAGES_MOBILE_SHARED);
+  set_default_resource(IDR_PRINT_PREVIEW_HTML);
+}
+
+PrintPreviewDataSource::~PrintPreviewDataSource() {
+}
+
+void PrintPreviewDataSource::StartDataRequest(const std::string& path,
+                                              bool is_incognito,
+                                              int request_id) {
+  // Parent class handles most requests except for the print preview data.
+  if (!EndsWith(path, "/print.pdf", true)) {
+    ChromeWebUIDataSource::StartDataRequest(path, is_incognito, request_id);
+    return;
+  }
+
+  // Print Preview data.
+  scoped_refptr<base::RefCountedBytes> data;
+  std::vector<std::string> url_substr;
+  base::SplitString(path, '/', &url_substr);
+  int preview_ui_id = -1;
+  int page_index = 0;
+  if (url_substr.size() == 3 &&
+      base::StringToInt(url_substr[0], &preview_ui_id),
+      base::StringToInt(url_substr[1], &page_index) &&
+      preview_ui_id >= 0) {
+    PrintPreviewDataService::GetInstance()->GetDataEntry(
+        preview_ui_id, page_index, &data);
+  }
+  if (data.get()) {
+    SendResponse(request_id, data);
+    return;
+  }
+  // Invalid request.
+  scoped_refptr<base::RefCountedBytes> empty_bytes(new base::RefCountedBytes);
+  SendResponse(request_id, empty_bytes);
+}