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// Copyright (c) 2011 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 <ocidl.h>
#include <commdlg.h>
#include <string>
#include "base/bind.h"
#include "base/bind_helpers.h"
#include "base/memory/scoped_ptr.h"
#include "base/run_loop.h"
#include "printing/backend/printing_info_win.h"
#include "printing/printing_test.h"
#include "printing/printing_context.h"
#include "printing/printing_context_win.h"
#include "printing/print_settings.h"
#include "testing/gtest/include/gtest/gtest.h"
// This test is automatically disabled if no printer is available.
class PrintingContextTest : public PrintingTest<testing::Test> {
public:
void PrintSettingsCallback(printing::PrintingContext::Result result) {
result_ = result;
base::MessageLoop::current()->QuitWhenIdle();
}
protected:
printing::PrintingContext::Result result() const { return result_; }
private:
printing::PrintingContext::Result result_;
};
// This is a fake PrintDlgEx implementation that sets the right fields in
// |lppd| to trigger a bug in older revisions of PrintingContext.
HRESULT WINAPI PrintDlgExMock(LPPRINTDLGEX lppd) {
// The interesting bits:
// Pretend the user hit print
lppd->dwResultAction = PD_RESULT_PRINT;
// Pretend the page range is 1-5, but since lppd->Flags does not have
// PD_SELECTION set, this really shouldn't matter.
lppd->nPageRanges = 1;
lppd->lpPageRanges[0].nFromPage = 1;
lppd->lpPageRanges[0].nToPage = 5;
// Painful paperwork.
std::wstring printer_name = PrintingContextTest::GetDefaultPrinter();
HANDLE printer;
if (!OpenPrinter(const_cast<wchar_t*>(printer_name.c_str()), &printer, NULL))
return E_FAIL;
scoped_ptr<uint8[]> buffer;
const DEVMODE* dev_mode = NULL;
HRESULT result = S_OK;
lppd->hDC = NULL;
lppd->hDevMode = NULL;
lppd->hDevNames = NULL;
printing::PrinterInfo2 info_2;
if (info_2.Init(printer)) {
dev_mode = info_2.get()->pDevMode;
}
if (!dev_mode) {
result = E_FAIL;
goto Cleanup;
}
if (!printing::PrintingContextWin::AllocateContext(printer_name, dev_mode,
&lppd->hDC)) {
result = E_FAIL;
goto Cleanup;
}
size_t dev_mode_size = dev_mode->dmSize + dev_mode->dmDriverExtra;
lppd->hDevMode = GlobalAlloc(GMEM_MOVEABLE, dev_mode_size);
if (!lppd->hDevMode) {
result = E_FAIL;
goto Cleanup;
}
void* dev_mode_ptr = GlobalLock(lppd->hDevMode);
if (!dev_mode_ptr) {
result = E_FAIL;
goto Cleanup;
}
memcpy(dev_mode_ptr, dev_mode, dev_mode_size);
GlobalUnlock(lppd->hDevMode);
dev_mode_ptr = NULL;
size_t driver_size = 2 + sizeof(wchar_t) * lstrlen(info_2.get()->pDriverName);
size_t printer_size = 2 + sizeof(wchar_t) *
lstrlen(info_2.get()->pPrinterName);
size_t port_size = 2 + sizeof(wchar_t) * lstrlen(info_2.get()->pPortName);
size_t dev_names_size = sizeof(DEVNAMES) + driver_size + printer_size +
port_size;
lppd->hDevNames = GlobalAlloc(GHND, dev_names_size);
if (!lppd->hDevNames) {
result = E_FAIL;
goto Cleanup;
}
void* dev_names_ptr = GlobalLock(lppd->hDevNames);
if (!dev_names_ptr) {
result = E_FAIL;
goto Cleanup;
}
DEVNAMES* dev_names = reinterpret_cast<DEVNAMES*>(dev_names_ptr);
dev_names->wDefault = 1;
dev_names->wDriverOffset = sizeof(DEVNAMES) / sizeof(wchar_t);
memcpy(reinterpret_cast<uint8*>(dev_names_ptr) + dev_names->wDriverOffset,
info_2.get()->pDriverName, driver_size);
dev_names->wDeviceOffset = dev_names->wDriverOffset +
driver_size / sizeof(wchar_t);
memcpy(reinterpret_cast<uint8*>(dev_names_ptr) + dev_names->wDeviceOffset,
info_2.get()->pPrinterName, printer_size);
dev_names->wOutputOffset = dev_names->wDeviceOffset +
printer_size / sizeof(wchar_t);
memcpy(reinterpret_cast<uint8*>(dev_names_ptr) + dev_names->wOutputOffset,
info_2.get()->pPortName, port_size);
GlobalUnlock(lppd->hDevNames);
dev_names_ptr = NULL;
Cleanup:
// Note: This section does proper deallocation/free of DC/global handles. We
// did not use ScopedHGlobal or ScopedHandle because they did not
// perform what we need. Goto's are used based on Windows programming
// idiom, to avoid deeply nested if's, and try-catch-finally is not
// allowed in Chromium.
if (FAILED(result)) {
if (lppd->hDC) {
DeleteDC(lppd->hDC);
}
if (lppd->hDevMode) {
GlobalFree(lppd->hDevMode);
}
if (lppd->hDevNames) {
GlobalFree(lppd->hDevNames);
}
}
ClosePrinter(printer);
return result;
}
TEST_F(PrintingContextTest, Base) {
if (IsTestCaseDisabled())
return;
printing::PrintSettings settings;
settings.set_device_name(GetDefaultPrinter());
// Initialize it.
scoped_ptr<printing::PrintingContext> context(
printing::PrintingContext::Create(std::string()));
EXPECT_EQ(printing::PrintingContext::OK, context->InitWithSettings(settings));
// The print may lie to use and may not support world transformation.
// Verify right now.
XFORM random_matrix = { 1, 0.1f, 0, 1.5f, 0, 1 };
EXPECT_TRUE(SetWorldTransform(context->context(), &random_matrix));
EXPECT_TRUE(ModifyWorldTransform(context->context(), NULL, MWT_IDENTITY));
}
TEST_F(PrintingContextTest, PrintAll) {
base::MessageLoopForUI loop;
if (IsTestCaseDisabled())
return;
std::string dummy_locale;
printing::PrintingContextWin context(dummy_locale);
context.SetPrintDialog(&PrintDlgExMock);
context.AskUserForSettings(
NULL, 123, false, base::Bind(&PrintingContextTest::PrintSettingsCallback,
base::Unretained(this)));
base::RunLoop().Run();
EXPECT_EQ(printing::PrintingContext::OK, result());
printing::PrintSettings settings = context.settings();
EXPECT_EQ(settings.ranges().size(), 0);
}
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