1 // Copyright (c) 2012 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.
5 #include "content/browser/renderer_host/pepper/pepper_print_settings_manager.h"
7 #include "content/public/browser/browser_thread.h"
8 #include "content/public/browser/content_browser_client.h"
9 #include "content/public/common/content_client.h"
10 #include "ppapi/c/pp_errors.h"
11 #include "printing/printing_context.h"
12 #include "printing/units.h"
18 #if defined(ENABLE_FULL_PRINTING)
19 // Print units conversion functions.
20 int32_t DeviceUnitsInPoints(int32_t device_units,
21 int32_t device_units_per_inch) {
22 return printing::ConvertUnit(
23 device_units, device_units_per_inch, printing::kPointsPerInch);
26 PP_Size PrintSizeToPPPrintSize(const gfx::Size& print_size,
27 int32_t device_units_per_inch) {
29 result.width = DeviceUnitsInPoints(print_size.width(), device_units_per_inch);
31 DeviceUnitsInPoints(print_size.height(), device_units_per_inch);
35 PP_Rect PrintAreaToPPPrintArea(const gfx::Rect& print_area,
36 int32_t device_units_per_inch) {
39 DeviceUnitsInPoints(print_area.origin().x(), device_units_per_inch);
41 DeviceUnitsInPoints(print_area.origin().y(), device_units_per_inch);
43 PrintSizeToPPPrintSize(print_area.size(), device_units_per_inch);
47 class PrintingContextDelegate : public printing::PrintingContext::Delegate {
49 // PrintingContext::Delegate methods.
50 virtual gfx::NativeView GetParentView() OVERRIDE { return NULL; }
51 virtual std::string GetAppLocale() OVERRIDE {
52 return GetContentClient()->browser()->GetApplicationLocale();
56 PepperPrintSettingsManager::Result ComputeDefaultPrintSettings() {
57 // This function should run on the UI thread because |PrintingContext| methods
58 // call into platform APIs.
59 DCHECK_CURRENTLY_ON(BrowserThread::UI);
61 PrintingContextDelegate delegate;
62 scoped_ptr<printing::PrintingContext> context(
63 printing::PrintingContext::Create(&delegate));
65 context->UseDefaultSettings() != printing::PrintingContext::OK) {
66 return PepperPrintSettingsManager::Result(PP_PrintSettings_Dev(),
69 const printing::PrintSettings& print_settings = context->settings();
70 const printing::PageSetup& page_setup =
71 print_settings.page_setup_device_units();
72 int device_units_per_inch = print_settings.device_units_per_inch();
73 if (device_units_per_inch <= 0) {
74 return PepperPrintSettingsManager::Result(PP_PrintSettings_Dev(),
77 PP_PrintSettings_Dev settings;
78 settings.printable_area = PrintAreaToPPPrintArea(page_setup.printable_area(),
79 device_units_per_inch);
80 settings.content_area =
81 PrintAreaToPPPrintArea(page_setup.content_area(), device_units_per_inch);
83 PrintSizeToPPPrintSize(page_setup.physical_size(), device_units_per_inch);
84 settings.dpi = print_settings.dpi();
86 // The remainder of the attributes are hard-coded to the defaults as set
88 settings.orientation = PP_PRINTORIENTATION_NORMAL;
89 settings.grayscale = PP_FALSE;
90 settings.print_scaling_option = PP_PRINTSCALINGOPTION_SOURCE_SIZE;
92 // TODO(raymes): Should be computed in the same way as
93 // |PluginInstance::GetPreferredPrintOutputFormat|.
94 // |PP_PRINTOUTPUTFORMAT_PDF| is currently the only supported format though,
95 // so just make it the default.
96 settings.format = PP_PRINTOUTPUTFORMAT_PDF;
97 return PepperPrintSettingsManager::Result(settings, PP_OK);
100 PepperPrintSettingsManager::Result ComputeDefaultPrintSettings() {
101 return PepperPrintSettingsManager::Result(PP_PrintSettings_Dev(),
102 PP_ERROR_NOTSUPPORTED);
108 void PepperPrintSettingsManagerImpl::GetDefaultPrintSettings(
109 PepperPrintSettingsManager::Callback callback) {
110 BrowserThread::PostTaskAndReplyWithResult(
113 base::Bind(ComputeDefaultPrintSettings),
117 } // namespace content