1 // Copyright 2014 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 "printing/printing_context_system_dialog_win.h"
9 #include "base/auto_reset.h"
10 #include "base/message_loop/message_loop_current.h"
11 #include "base/stl_util.h"
12 #include "printing/backend/win_helper.h"
13 #include "printing/print_settings_initializer_win.h"
14 #include "skia/ext/skia_utils_win.h"
18 PrintingContextSystemDialogWin::PrintingContextSystemDialogWin(
20 : PrintingContextWin(delegate) {}
22 PrintingContextSystemDialogWin::~PrintingContextSystemDialogWin() {}
24 void PrintingContextSystemDialogWin::AskUserForSettings(
28 PrintSettingsCallback callback) {
29 DCHECK(!in_print_job_);
31 HWND window = GetRootWindow(delegate_->GetParentView());
34 // Show the OS-dependent dialog box.
36 // - OK, the settings are reset and reinitialized with the new settings. OK is
38 // - Apply then Cancel, the settings are reset and reinitialized with the new
39 // settings. CANCEL is returned.
40 // - Cancel, the settings are not changed, the previous setting, if it was
41 // initialized before, are kept. CANCEL is returned.
42 // On failure, the settings are reset and FAILED is returned.
43 PRINTDLGEX dialog_options = {sizeof(PRINTDLGEX)};
44 dialog_options.hwndOwner = window;
45 // Disable options we don't support currently.
46 // TODO(maruel): Reuse the previously loaded settings!
47 dialog_options.Flags = PD_RETURNDC | PD_USEDEVMODECOPIESANDCOLLATE |
48 PD_NOCURRENTPAGE | PD_HIDEPRINTTOFILE;
50 dialog_options.Flags |= PD_NOSELECTION;
52 PRINTPAGERANGE ranges[32];
53 dialog_options.nStartPage = START_PAGE_GENERAL;
55 // Default initialize to print all the pages.
56 memset(ranges, 0, sizeof(ranges));
57 ranges[0].nFromPage = 1;
58 ranges[0].nToPage = max_pages;
59 dialog_options.nPageRanges = 1;
60 dialog_options.nMaxPageRanges = base::size(ranges);
61 dialog_options.nMinPage = 1;
62 dialog_options.nMaxPage = max_pages;
63 dialog_options.lpPageRanges = ranges;
65 // No need to bother, we don't know how many pages are available.
66 dialog_options.Flags |= PD_NOPAGENUMS;
69 if (ShowPrintDialog(&dialog_options) != S_OK) {
71 std::move(callback).Run(FAILED);
75 // TODO(maruel): Support PD_PRINTTOFILE.
76 std::move(callback).Run(ParseDialogResultEx(dialog_options));
79 HRESULT PrintingContextSystemDialogWin::ShowPrintDialog(PRINTDLGEX* options) {
80 // Runs always on the UI thread.
81 static bool is_dialog_shown = false;
84 // Block opening dialog from nested task. It crashes PrintDlgEx.
85 base::AutoReset<bool> auto_reset(&is_dialog_shown, true);
87 // Note that this cannot use ui::BaseShellDialog as the print dialog is
88 // system modal: opening it from a background thread can cause Windows to
89 // get the wrong Z-order which will make the print dialog appear behind the
90 // browser frame (but still being modal) so neither the browser frame nor
91 // the print dialog will get any input. See http://crbug.com/342697
92 // http://crbug.com/180997 for details.
93 base::MessageLoopCurrent::ScopedNestableTaskAllower allow;
95 return PrintDlgEx(options);
98 bool PrintingContextSystemDialogWin::InitializeSettingsWithRanges(
99 const DEVMODE& dev_mode,
100 const std::wstring& new_device_name,
101 const PRINTPAGERANGE* ranges,
103 bool selection_only) {
104 DCHECK(GetDeviceCaps(context(), CLIPCAPS));
105 DCHECK(GetDeviceCaps(context(), RASTERCAPS) & RC_STRETCHDIB);
106 DCHECK(GetDeviceCaps(context(), RASTERCAPS) & RC_BITMAP64);
107 // Some printers don't advertise these.
108 // DCHECK(GetDeviceCaps(context(), RASTERCAPS) & RC_SCALING);
109 // DCHECK(GetDeviceCaps(context(), SHADEBLENDCAPS) & SB_CONST_ALPHA);
110 // DCHECK(GetDeviceCaps(context(), SHADEBLENDCAPS) & SB_PIXEL_ALPHA);
112 // StretchDIBits() support is needed for printing.
113 if (!(GetDeviceCaps(context(), RASTERCAPS) & RC_STRETCHDIB) ||
114 !(GetDeviceCaps(context(), RASTERCAPS) & RC_BITMAP64)) {
120 DCHECK(!in_print_job_);
122 PageRanges ranges_vector;
123 if (!selection_only) {
124 // Convert the PRINTPAGERANGE array to a PrintSettings::PageRanges vector.
125 ranges_vector.reserve(number_ranges);
126 for (int i = 0; i < number_ranges; ++i) {
128 // Transfer from 1-based to 0-based.
129 range.from = ranges[i].nFromPage - 1;
130 range.to = ranges[i].nToPage - 1;
131 ranges_vector.push_back(range);
135 settings_.set_ranges(ranges_vector);
136 settings_.set_device_name(new_device_name);
137 settings_.set_selection_only(selection_only);
138 PrintSettingsInitializerWin::InitPrintSettings(
139 context(), dev_mode, &settings_);
144 PrintingContext::Result PrintingContextSystemDialogWin::ParseDialogResultEx(
145 const PRINTDLGEX& dialog_options) {
146 // If the user clicked OK or Apply then Cancel, but not only Cancel.
147 if (dialog_options.dwResultAction != PD_RESULT_CANCEL) {
148 // Start fresh, but preserve is_modifiable and GDI print setting.
149 bool is_modifiable = settings_.is_modifiable();
150 bool print_text_with_gdi = settings_.print_text_with_gdi();
152 settings_.set_is_modifiable(is_modifiable);
153 settings_.set_print_text_with_gdi(print_text_with_gdi);
155 DEVMODE* dev_mode = NULL;
156 if (dialog_options.hDevMode) {
158 reinterpret_cast<DEVMODE*>(GlobalLock(dialog_options.hDevMode));
162 std::wstring device_name;
163 if (dialog_options.hDevNames) {
164 DEVNAMES* dev_names =
165 reinterpret_cast<DEVNAMES*>(GlobalLock(dialog_options.hDevNames));
168 device_name = reinterpret_cast<const wchar_t*>(dev_names) +
169 dev_names->wDeviceOffset;
170 GlobalUnlock(dialog_options.hDevNames);
174 bool success = false;
175 if (dev_mode && !device_name.empty()) {
176 set_context(dialog_options.hDC);
177 PRINTPAGERANGE* page_ranges = NULL;
178 DWORD num_page_ranges = 0;
179 bool print_selection_only = false;
180 if (dialog_options.Flags & PD_PAGENUMS) {
181 page_ranges = dialog_options.lpPageRanges;
182 num_page_ranges = dialog_options.nPageRanges;
184 if (dialog_options.Flags & PD_SELECTION) {
185 print_selection_only = true;
188 InitializeSettingsWithRanges(*dev_mode, device_name, page_ranges,
189 num_page_ranges, print_selection_only);
192 if (!success && dialog_options.hDC) {
193 DeleteDC(dialog_options.hDC);
198 GlobalUnlock(dialog_options.hDevMode);
201 if (dialog_options.hDC) {
202 DeleteDC(dialog_options.hDC);
206 if (dialog_options.hDevMode != NULL)
207 GlobalFree(dialog_options.hDevMode);
208 if (dialog_options.hDevNames != NULL)
209 GlobalFree(dialog_options.hDevNames);
211 switch (dialog_options.dwResultAction) {
212 case PD_RESULT_PRINT:
213 return context() ? OK : FAILED;
214 case PD_RESULT_APPLY:
215 return context() ? CANCEL : FAILED;
216 case PD_RESULT_CANCEL:
223 } // namespace printing