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// Copyright (c) 2010 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 "app/clipboard/clipboard.h"
#include "base/command_line.h"
#include "base/file_util.h"
#include "base/path_service.h"
#include "base/string_number_conversions.h"
#include "base/utf_string_conversions.h"
#include "chrome/browser/browser.h"
#include "chrome/browser/browser_window.h"
#include "chrome/browser/renderer_host/render_view_host.h"
#include "chrome/browser/tab_contents/tab_contents.h"
#include "chrome/browser/window_sizer.h"
#include "chrome/common/chrome_paths.h"
#include "chrome/common/chrome_switches.h"
#include "chrome/common/notification_observer.h"
#include "chrome/test/in_process_browser_test.h"
#include "chrome/test/ui_test_utils.h"
#include "gfx/codec/png_codec.h"
namespace {
// Include things like browser frame and scrollbar and make sure we're bigger
// than the test pdf document.
static const int kBrowserWidth = 1000;
static const int kBrowserHeight = 600;
class PDFBrowserTest : public InProcessBrowserTest,
public NotificationObserver {
public:
PDFBrowserTest()
: have_plugin_(false),
snapshot_different_(true),
next_dummy_search_value_(0) {
}
protected:
bool have_plugin() const { return have_plugin_; }
virtual void SetUp() {
FilePath pdf_path;
PathService::Get(chrome::FILE_PDF_PLUGIN, &pdf_path);
#if !defined(OS_MACOSX)
// http://crbug.com/61258: renderer always crashes on Mac.
have_plugin_ = file_util::PathExists(pdf_path);
#endif
InProcessBrowserTest::SetUp();
}
void Load() {
GURL url(ui_test_utils::GetTestUrl(
FilePath(FilePath::kCurrentDirectory),
FilePath(FILE_PATH_LITERAL("pdf_browsertest.pdf"))));
ui_test_utils::NavigateToURL(browser(), url);
gfx::Rect bounds(gfx::Rect(0, 0, kBrowserWidth, kBrowserHeight));
scoped_ptr<WindowSizer::MonitorInfoProvider> monitor_info(
WindowSizer::CreateDefaultMonitorInfoProvider());
gfx::Rect screen_bounds = monitor_info->GetPrimaryMonitorBounds();
ASSERT_GT(screen_bounds.width(), kBrowserWidth);
ASSERT_GT(screen_bounds.height(), kBrowserHeight);
browser()->window()->SetBounds(bounds);
}
void VerifySnapshot(const std::string& expected_filename) {
snapshot_different_ = true;
expected_filename_ = expected_filename;
RenderViewHost* host =
browser()->GetSelectedTabContents()->render_view_host();
host->CaptureSnapshot();
ui_test_utils::RegisterAndWait(this,
NotificationType::TAB_SNAPSHOT_TAKEN,
Source<RenderViewHost>(host));
ASSERT_FALSE(snapshot_different_) << "Rendering didn't match, see result "
"at " << snapshot_filename_.value().c_str();
}
void WaitForResponse() {
// Even if the plugin has loaded the data or scrolled, because of how
// pepper painting works, we might not have the data. One way to force this
// to be flushed is to do a find operation, since on this two-page test
// document, it'll wait for us to flush the renderer message loop twice and
// also the browser's once, at which point we're guaranteed to have updated
// the backingstore. Hacky, but it works.
// Note that we need to change the text each time, because if we don't the
// renderer code will think the second message is to go to next result, but
// there are none so the plugin will assert.
string16 query = UTF8ToUTF16(
std::string("xyzxyz" + base::IntToString(next_dummy_search_value_++)));
ASSERT_EQ(0, ui_test_utils::FindInPage(
browser()->GetSelectedTabContents(), query, true, false, NULL));
}
private:
virtual void SetUpCommandLine(CommandLine* command_line) {
command_line->AppendSwitch(switches::kForceInternalPDFPlugin);
}
// NotificationObserver
virtual void Observe(NotificationType type,
const NotificationSource& source,
const NotificationDetails& details) {
if (type == NotificationType::TAB_SNAPSHOT_TAKEN) {
MessageLoopForUI::current()->Quit();
FilePath reference = ui_test_utils::GetTestFilePath(
FilePath(FilePath::kCurrentDirectory),
FilePath().AppendASCII(expected_filename_));
base::PlatformFileInfo info;
ASSERT_TRUE(file_util::GetFileInfo(reference, &info));
int size = static_cast<size_t>(info.size);
scoped_array<char> data(new char[size]);
ASSERT_EQ(size, file_util::ReadFile(reference, data.get(), size));
int w, h;
std::vector<unsigned char> decoded;
ASSERT_TRUE(gfx::PNGCodec::Decode(
reinterpret_cast<unsigned char*>(data.get()), size,
gfx::PNGCodec::FORMAT_BGRA, &decoded, &w, &h));
int32* ref_pixels = reinterpret_cast<int32*>(&decoded[0]);
const SkBitmap* bitmap = Details<const SkBitmap>(details).ptr();
int32* pixels = static_cast<int32*>(bitmap->getPixels());
// Get the background color, and use it to figure out the x-offsets in
// each image. The reason is that depending on the theme in the OS, the
// same browser width can lead to slightly different plugin sizes, so the
// pdf content will start at different x offsets.
// Also note that the images we saved are cut off before the scrollbar, as
// that'll change depending on the theme, and also cut off vertically so
// that the ui controls don't show up, as those fade-in and so the timing
// will affect their transparency.
int32 bg_color = ref_pixels[0];
int ref_x_offset, snapshot_x_offset;
for (ref_x_offset = 0; ref_x_offset < w; ++ref_x_offset) {
if (ref_pixels[ref_x_offset] != bg_color)
break;
}
for (snapshot_x_offset = 0; snapshot_x_offset < bitmap->width();
++snapshot_x_offset) {
if (pixels[snapshot_x_offset] != bg_color)
break;
}
int x_max = std::min(
w - ref_x_offset, bitmap->width() - snapshot_x_offset);
int y_max = std::min(h, bitmap->height());
int stride = bitmap->rowBytes();
snapshot_different_ = false;
for (int y = 0; y < y_max && !snapshot_different_; ++y) {
for (int x = 0; x < x_max && !snapshot_different_; ++x) {
if (pixels[y * stride / sizeof(int32) + x + snapshot_x_offset] !=
ref_pixels[y * w + x + ref_x_offset])
snapshot_different_ = true;
}
}
if (snapshot_different_) {
std::vector<unsigned char> png_data;
gfx::PNGCodec::EncodeBGRASkBitmap(*bitmap, false, &png_data);
if (file_util::CreateTemporaryFile(&snapshot_filename_)) {
file_util::WriteFile(snapshot_filename_,
reinterpret_cast<char*>(&png_data[0]), png_data.size());
}
}
}
}
// True if we found the pdf plugin. Needed since only official builders have
// the pdf plugin, so for the rest, and for other devs, we don't want the test
// to fail.
bool have_plugin_;
// True if the snapshot differed from the expected value.
bool snapshot_different_;
// Internal variable used to synchronize to the renderer.
int next_dummy_search_value_;
// The filename of the bitmap to compare the snapshot to.
std::string expected_filename_;
// If the snapshot is different, holds the location where it's saved.
FilePath snapshot_filename_;
};
// Tests basic PDF rendering. This can be broken depending on bad merges with
// the vendor, so it's important that we have basic sanity checking.
IN_PROC_BROWSER_TEST_F(PDFBrowserTest, Basic) {
if (!have_plugin())
return;
ASSERT_NO_FATAL_FAILURE(Load());
ASSERT_NO_FATAL_FAILURE(WaitForResponse());
ASSERT_NO_FATAL_FAILURE(VerifySnapshot("pdf_browsertest.png"));
}
// Tests that scrolling works.
IN_PROC_BROWSER_TEST_F(PDFBrowserTest, Scroll) {
if (!have_plugin())
return;
ASSERT_NO_FATAL_FAILURE(Load());
// We use wheel mouse event since that's the only one we can easily push to
// the renderer. There's no way to push a cross-platform keyboard event at
// the moment.
WebKit::WebMouseWheelEvent wheel_event;
wheel_event.type = WebKit::WebInputEvent::MouseWheel;
wheel_event.deltaY = -200;
wheel_event.wheelTicksY = -2;
TabContents* tab_contents = browser()->GetSelectedTabContents();
tab_contents->render_view_host()->ForwardWheelEvent(wheel_event);
ASSERT_NO_FATAL_FAILURE(WaitForResponse());
ASSERT_NO_FATAL_FAILURE(VerifySnapshot("pdf_browsertest_scroll.png"));
}
IN_PROC_BROWSER_TEST_F(PDFBrowserTest, FindAndCopy) {
if (!have_plugin())
return;
ASSERT_NO_FATAL_FAILURE(Load());
// Verifies that find in page works.
ASSERT_EQ(3, ui_test_utils::FindInPage(
browser()->GetSelectedTabContents(), UTF8ToUTF16("adipiscing"), true,
false, NULL));
// Verify that copying selected text works.
Clipboard clipboard;
// Reset the clipboard first.
Clipboard::ObjectMap objects;
Clipboard::ObjectMapParams params;
params.push_back(std::vector<char>());
objects[Clipboard::CBF_TEXT] = params;
clipboard.WriteObjects(objects);
browser()->GetSelectedTabContents()->render_view_host()->Copy();
ASSERT_NO_FATAL_FAILURE(WaitForResponse());
std::string text;
clipboard.ReadAsciiText(Clipboard::BUFFER_STANDARD, &text);
ASSERT_EQ("adipiscing", text);
}
} // namespace
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