Home | History | Annotate | Download | only in webui 
      1 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 #include "chrome/browser/ui/webui/print_preview_ui_html_source.h"
      6 
      7 #include <algorithm>
      8 #include <vector>
      9 
     10 #include "base/message_loop.h"
     11 #include "base/shared_memory.h"
     12 #include "base/string_piece.h"
     13 #include "base/values.h"
     14 #include "chrome/common/jstemplate_builder.h"
     15 #include "chrome/common/url_constants.h"
     16 #include "grit/browser_resources.h"
     17 #include "grit/generated_resources.h"
     18 #include "ui/base/l10n/l10n_util.h"
     19 #include "ui/base/resource/resource_bundle.h"
     20 
     21 namespace {
     22 
     23 void SetLocalizedStrings(DictionaryValue* localized_strings) {
     24   localized_strings->SetString(std::string("title"),
     25       l10n_util::GetStringUTF8(IDS_PRINT_PREVIEW_TITLE));
     26   localized_strings->SetString(std::string("loading"),
     27       l10n_util::GetStringUTF8(IDS_PRINT_PREVIEW_LOADING));
     28   localized_strings->SetString(std::string("noPlugin"),
     29       l10n_util::GetStringUTF8(IDS_PRINT_PREVIEW_NO_PLUGIN));
     30 
     31   localized_strings->SetString(std::string("printButton"),
     32       l10n_util::GetStringUTF8(IDS_PRINT_PREVIEW_PRINT_BUTTON));
     33   localized_strings->SetString(std::string("cancelButton"),
     34       l10n_util::GetStringUTF8(IDS_PRINT_PREVIEW_CANCEL_BUTTON));
     35 
     36   localized_strings->SetString(std::string("destinationLabel"),
     37       l10n_util::GetStringUTF8(IDS_PRINT_PREVIEW_DESTINATION_LABEL));
     38   localized_strings->SetString(std::string("copiesLabel"),
     39       l10n_util::GetStringUTF8(IDS_PRINT_PREVIEW_COPIES_LABEL));
     40   localized_strings->SetString(std::string("examplePageRangeText"),
     41       l10n_util::GetStringUTF8(IDS_PRINT_PREVIEW_EXAMPLE_PAGE_RANGE_TEXT));
     42   localized_strings->SetString(std::string("invalidNumberOfCopiesTitleToolTip"),
     43       l10n_util::GetStringUTF8(IDS_PRINT_PREVIEW_INVALID_COPIES_TOOL_TIP));
     44   localized_strings->SetString(std::string("layoutLabel"),
     45       l10n_util::GetStringUTF8(IDS_PRINT_PREVIEW_LAYOUT_LABEL));
     46   localized_strings->SetString(std::string("optionAllPages"),
     47       l10n_util::GetStringUTF8(IDS_PRINT_PREVIEW_OPTION_ALL_PAGES));
     48   localized_strings->SetString(std::string("optionBw"),
     49       l10n_util::GetStringUTF8(IDS_PRINT_PREVIEW_OPTION_BW));
     50   localized_strings->SetString(std::string("optionCollate"),
     51       l10n_util::GetStringUTF8(IDS_PRINT_PREVIEW_OPTION_COLLATE));
     52   localized_strings->SetString(std::string("optionColor"),
     53       l10n_util::GetStringUTF8(IDS_PRINT_PREVIEW_OPTION_COLOR));
     54   localized_strings->SetString(std::string("optionLandscape"),
     55       l10n_util::GetStringUTF8(IDS_PRINT_PREVIEW_OPTION_LANDSCAPE));
     56   localized_strings->SetString(std::string("optionPortrait"),
     57       l10n_util::GetStringUTF8(IDS_PRINT_PREVIEW_OPTION_PORTRAIT));
     58   localized_strings->SetString(std::string("optionTwoSided"),
     59       l10n_util::GetStringUTF8(IDS_PRINT_PREVIEW_OPTION_TWO_SIDED));
     60   localized_strings->SetString(std::string("bindingLabel"),
     61       l10n_util::GetStringUTF8(IDS_PRINT_PREVIEW_BINDING_LABEL));
     62   localized_strings->SetString(std::string("optionLongEdgeBinding"),
     63       l10n_util::GetStringUTF8(IDS_PRINT_PREVIEW_OPTION_LONG_EDGE_BINDING));
     64   localized_strings->SetString(std::string("optionShortEdgeBinding"),
     65       l10n_util::GetStringUTF8(IDS_PRINT_PREVIEW_OPTION_SHORT_EDGE_BINDING));
     66   localized_strings->SetString(std::string("pagesLabel"),
     67       l10n_util::GetStringUTF8(IDS_PRINT_PREVIEW_PAGES_LABEL));
     68   localized_strings->SetString(std::string("pageRangeTextBox"),
     69       l10n_util::GetStringUTF8(IDS_PRINT_PREVIEW_PAGE_RANGE_TEXT));
     70   localized_strings->SetString(std::string("pageRangeRadio"),
     71       l10n_util::GetStringUTF8(IDS_PRINT_PREVIEW_PAGE_RANGE_RADIO));
     72   localized_strings->SetString(std::string("pageRangeInvalidTitleToolTip"),
     73       l10n_util::GetStringUTF8(IDS_PRINT_PREVIEW_PAGE_RANGE_INVALID_TOOL_TIP));
     74   localized_strings->SetString(std::string("printToPDF"),
     75       l10n_util::GetStringUTF8(IDS_PRINT_PREVIEW_PRINT_TO_PDF));
     76   localized_strings->SetString(std::string("printPreviewTitleFormat"),
     77       l10n_util::GetStringUTF8(IDS_PRINT_PREVIEW_TITLE_FORMAT));
     78   localized_strings->SetString(std::string("printPreviewSummaryFormat"),
     79       l10n_util::GetStringUTF8(IDS_PRINT_PREVIEW_SUMMARY_FORMAT));
     80   localized_strings->SetString(std::string("printPreviewSheetsLabel"),
     81       l10n_util::GetStringUTF8(IDS_PRINT_PREVIEW_SHEETS_LABEL));
     82   localized_strings->SetString(std::string("printPreviewPageLabelSingular"),
     83       l10n_util::GetStringUTF8(IDS_PRINT_PREVIEW_PAGE_LABEL_SINGULAR));
     84   localized_strings->SetString(std::string("printPreviewPageLabelPlural"),
     85       l10n_util::GetStringUTF8(IDS_PRINT_PREVIEW_PAGE_LABEL_PLURAL));
     86   localized_strings->SetString(std::string("systemDialogOption"),
     87       l10n_util::GetStringUTF8(IDS_PRINT_PREVIEW_SYSTEM_DIALOG_OPTION));
     88 }
     89 
     90 }  // namespace
     91 
     92 PrintPreviewUIHTMLSource::PrintPreviewUIHTMLSource()
     93     : DataSource(chrome::kChromeUIPrintHost, MessageLoop::current()),
     94       data_(std::make_pair(static_cast<base::SharedMemory*>(NULL), 0U)) {
     95 }
     96 
     97 PrintPreviewUIHTMLSource::~PrintPreviewUIHTMLSource() {
     98   delete data_.first;
     99 }
    100 
    101 void PrintPreviewUIHTMLSource::GetPrintPreviewData(PrintPreviewData* data) {
    102   *data = data_;
    103 }
    104 
    105 void PrintPreviewUIHTMLSource::SetPrintPreviewData(
    106     const PrintPreviewData& data) {
    107   delete data_.first;
    108   data_ = data;
    109 }
    110 
    111 void PrintPreviewUIHTMLSource::StartDataRequest(const std::string& path,
    112                                                 bool is_incognito,
    113                                                 int request_id) {
    114   if (path.empty()) {
    115     // Print Preview Index page.
    116     DictionaryValue localized_strings;
    117     SetLocalizedStrings(&localized_strings);
    118     SetFontAndTextDirection(&localized_strings);
    119 
    120     static const base::StringPiece print_html(
    121         ResourceBundle::GetSharedInstance().GetRawDataResource(
    122             IDR_PRINT_PREVIEW_HTML));
    123     const std::string full_html = jstemplate_builder::GetI18nTemplateHtml(
    124         print_html, &localized_strings);
    125 
    126     scoped_refptr<RefCountedBytes> html_bytes(new RefCountedBytes);
    127     html_bytes->data.resize(full_html.size());
    128     std::copy(full_html.begin(), full_html.end(), html_bytes->data.begin());
    129 
    130     SendResponse(request_id, html_bytes);
    131     return;
    132   } else if (path == "print.pdf" && data_.first) {
    133     // Print Preview data.
    134     char* preview_data = reinterpret_cast<char*>(data_.first->memory());
    135     uint32 preview_data_size = data_.second;
    136 
    137     scoped_refptr<RefCountedBytes> html_bytes(new RefCountedBytes);
    138     html_bytes->data.resize(preview_data_size);
    139     std::vector<unsigned char>::iterator it = html_bytes->data.begin();
    140     for (uint32 i = 0; i < preview_data_size; ++i, ++it)
    141       *it = *(preview_data + i);
    142     SendResponse(request_id, html_bytes);
    143     return;
    144   } else {
    145     // Invalid request.
    146     scoped_refptr<RefCountedBytes> empty_bytes(new RefCountedBytes);
    147     SendResponse(request_id, empty_bytes);
    148     return;
    149   }
    150 }
    151 
    152 std::string PrintPreviewUIHTMLSource::GetMimeType(
    153     const std::string& path) const {
    154   // Print Preview Index page.
    155   if (path.empty())
    156     return "text/html";
    157   // Print Preview data.
    158   return "application/pdf";
    159 }
    160