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 <ocidl.h> 6 #include <commdlg.h> 7 8 #include <string> 9 10 #include "base/bind.h" 11 #include "base/bind_helpers.h" 12 #include "base/memory/scoped_ptr.h" 13 #include "base/message_loop/message_loop.h" 14 #include "printing/backend/printing_info_win.h" 15 #include "printing/backend/win_helper.h" 16 #include "printing/printing_test.h" 17 #include "printing/printing_context.h" 18 #include "printing/printing_context_win.h" 19 #include "printing/print_settings.h" 20 #include "testing/gtest/include/gtest/gtest.h" 21 22 namespace printing { 23 24 // This test is automatically disabled if no printer is available. 25 class PrintingContextTest : public PrintingTest<testing::Test> { 26 public: 27 void PrintSettingsCallback(PrintingContext::Result result) { 28 result_ = result; 29 } 30 31 protected: 32 PrintingContext::Result result() const { return result_; } 33 34 private: 35 PrintingContext::Result result_; 36 }; 37 38 class MockPrintingContextWin : public PrintingContextWin { 39 public: 40 MockPrintingContextWin() : PrintingContextWin("") {} 41 42 protected: 43 // This is a fake PrintDlgEx implementation that sets the right fields in 44 // |lppd| to trigger a bug in older revisions of PrintingContext. 45 HRESULT ShowPrintDialog(PRINTDLGEX* lppd) OVERRIDE { 46 // The interesting bits: 47 // Pretend the user hit print 48 lppd->dwResultAction = PD_RESULT_PRINT; 49 50 // Pretend the page range is 1-5, but since lppd->Flags does not have 51 // PD_SELECTION set, this really shouldn't matter. 52 lppd->nPageRanges = 1; 53 lppd->lpPageRanges[0].nFromPage = 1; 54 lppd->lpPageRanges[0].nToPage = 5; 55 56 base::string16 printer_name = PrintingContextTest::GetDefaultPrinter(); 57 ScopedPrinterHandle printer; 58 if (!printer.OpenPrinter(printer_name.c_str())) 59 return E_FAIL; 60 61 scoped_ptr<uint8[]> buffer; 62 const DEVMODE* dev_mode = NULL; 63 HRESULT result = S_OK; 64 lppd->hDC = NULL; 65 lppd->hDevMode = NULL; 66 lppd->hDevNames = NULL; 67 68 PrinterInfo2 info_2; 69 if (info_2.Init(printer)) { 70 dev_mode = info_2.get()->pDevMode; 71 } 72 if (!dev_mode) { 73 result = E_FAIL; 74 goto Cleanup; 75 } 76 77 if (!PrintingContextWin::AllocateContext( 78 printer_name, dev_mode, &lppd->hDC)) { 79 result = E_FAIL; 80 goto Cleanup; 81 } 82 83 size_t dev_mode_size = dev_mode->dmSize + dev_mode->dmDriverExtra; 84 lppd->hDevMode = GlobalAlloc(GMEM_MOVEABLE, dev_mode_size); 85 if (!lppd->hDevMode) { 86 result = E_FAIL; 87 goto Cleanup; 88 } 89 void* dev_mode_ptr = GlobalLock(lppd->hDevMode); 90 if (!dev_mode_ptr) { 91 result = E_FAIL; 92 goto Cleanup; 93 } 94 memcpy(dev_mode_ptr, dev_mode, dev_mode_size); 95 GlobalUnlock(lppd->hDevMode); 96 dev_mode_ptr = NULL; 97 98 size_t driver_size = 99 2 + sizeof(wchar_t) * lstrlen(info_2.get()->pDriverName); 100 size_t printer_size = 101 2 + sizeof(wchar_t) * lstrlen(info_2.get()->pPrinterName); 102 size_t port_size = 2 + sizeof(wchar_t) * lstrlen(info_2.get()->pPortName); 103 size_t dev_names_size = 104 sizeof(DEVNAMES) + driver_size + printer_size + port_size; 105 lppd->hDevNames = GlobalAlloc(GHND, dev_names_size); 106 if (!lppd->hDevNames) { 107 result = E_FAIL; 108 goto Cleanup; 109 } 110 void* dev_names_ptr = GlobalLock(lppd->hDevNames); 111 if (!dev_names_ptr) { 112 result = E_FAIL; 113 goto Cleanup; 114 } 115 DEVNAMES* dev_names = reinterpret_cast<DEVNAMES*>(dev_names_ptr); 116 dev_names->wDefault = 1; 117 dev_names->wDriverOffset = sizeof(DEVNAMES) / sizeof(wchar_t); 118 memcpy(reinterpret_cast<uint8*>(dev_names_ptr) + dev_names->wDriverOffset, 119 info_2.get()->pDriverName, 120 driver_size); 121 dev_names->wDeviceOffset = 122 dev_names->wDriverOffset + driver_size / sizeof(wchar_t); 123 memcpy(reinterpret_cast<uint8*>(dev_names_ptr) + dev_names->wDeviceOffset, 124 info_2.get()->pPrinterName, 125 printer_size); 126 dev_names->wOutputOffset = 127 dev_names->wDeviceOffset + printer_size / sizeof(wchar_t); 128 memcpy(reinterpret_cast<uint8*>(dev_names_ptr) + dev_names->wOutputOffset, 129 info_2.get()->pPortName, 130 port_size); 131 GlobalUnlock(lppd->hDevNames); 132 dev_names_ptr = NULL; 133 134 Cleanup: 135 // Note: This section does proper deallocation/free of DC/global handles. We 136 // did not use ScopedHGlobal or ScopedHandle because they did not 137 // perform what we need. Goto's are used based on Windows programming 138 // idiom, to avoid deeply nested if's, and try-catch-finally is not 139 // allowed in Chromium. 140 if (FAILED(result)) { 141 if (lppd->hDC) { 142 DeleteDC(lppd->hDC); 143 } 144 if (lppd->hDevMode) { 145 GlobalFree(lppd->hDevMode); 146 } 147 if (lppd->hDevNames) { 148 GlobalFree(lppd->hDevNames); 149 } 150 } 151 return result; 152 } 153 }; 154 155 TEST_F(PrintingContextTest, Base) { 156 if (IsTestCaseDisabled()) 157 return; 158 159 PrintSettings settings; 160 settings.set_device_name(GetDefaultPrinter()); 161 // Initialize it. 162 scoped_ptr<PrintingContext> context(PrintingContext::Create(std::string())); 163 EXPECT_EQ(PrintingContext::OK, context->InitWithSettings(settings)); 164 165 // The print may lie to use and may not support world transformation. 166 // Verify right now. 167 XFORM random_matrix = { 1, 0.1f, 0, 1.5f, 0, 1 }; 168 EXPECT_TRUE(SetWorldTransform(context->context(), &random_matrix)); 169 EXPECT_TRUE(ModifyWorldTransform(context->context(), NULL, MWT_IDENTITY)); 170 } 171 172 TEST_F(PrintingContextTest, PrintAll) { 173 base::MessageLoop message_loop; 174 if (IsTestCaseDisabled()) 175 return; 176 177 MockPrintingContextWin context; 178 context.AskUserForSettings( 179 NULL, 123, false, base::Bind(&PrintingContextTest::PrintSettingsCallback, 180 base::Unretained(this))); 181 EXPECT_EQ(PrintingContext::OK, result()); 182 PrintSettings settings = context.settings(); 183 EXPECT_EQ(settings.ranges().size(), 0); 184 } 185 186 } // namespace printing 187
