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// Copyright (c) 2012 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 "content/shell/webkit_test_runner.h"
#include "base/md5.h"
#include "base/memory/scoped_ptr.h"
#include "base/stringprintf.h"
#include "content/public/renderer/render_view.h"
#include "content/shell/shell_messages.h"
#include "skia/ext/platform_canvas.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/platform/WebCString.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/platform/WebRect.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/platform/WebSize.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/platform/WebString.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebDocument.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebElement.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebFrame.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebTestingSupport.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebView.h"
#include "webkit/glue/webkit_glue.h"
using WebKit::WebFrame;
using WebKit::WebElement;
using WebKit::WebRect;
using WebKit::WebSize;
using WebKit::WebTestingSupport;
using WebKit::WebView;
namespace content {
namespace {
std::string DumpDocumentText(WebFrame* frame) {
// We use the document element's text instead of the body text here because
// not all documents have a body, such as XML documents.
WebElement documentElement = frame->document().documentElement();
if (documentElement.isNull())
return std::string();
return documentElement.innerText().utf8();
}
std::string DumpDocumentPrintedText(WebFrame* frame) {
return frame->renderTreeAsText(WebFrame::RenderAsTextPrinting).utf8();
}
std::string DumpFramesAsText(WebFrame* frame, bool printing, bool recursive) {
std::string result;
// Cannot do printed format for anything other than HTML.
if (printing && !frame->document().isHTMLDocument())
return std::string();
// Add header for all but the main frame. Skip emtpy frames.
if (frame->parent() && !frame->document().documentElement().isNull()) {
result.append("\n--------\nFrame: '");
result.append(frame->uniqueName().utf8().data());
result.append("'\n--------\n");
}
result.append(
printing ? DumpDocumentPrintedText(frame) : DumpDocumentText(frame));
result.append("\n");
if (recursive) {
for (WebFrame* child = frame->firstChild(); child;
child = child->nextSibling()) {
result.append(DumpFramesAsText(child, printing, recursive));
}
}
return result;
}
std::string DumpFrameScrollPosition(WebFrame* frame, bool recursive) {
std::string result;
WebSize offset = frame->scrollOffset();
if (offset.width > 0 || offset.height > 0) {
if (frame->parent()) {
result.append(
base::StringPrintf("frame '%s' ", frame->uniqueName().utf8().data()));
}
result.append(
base::StringPrintf("scrolled to %d,%d\n", offset.width, offset.height));
}
if (recursive) {
for (WebFrame* child = frame->firstChild(); child;
child = child->nextSibling()) {
result.append(DumpFrameScrollPosition(child, recursive));
}
}
return result;
}
bool PaintViewIntoCanvas(WebView* view, skia::PlatformCanvas& canvas) {
view->layout();
const WebSize& size = view->size();
if (!canvas.initialize(size.width, size.height, true))
return false;
view->paint(webkit_glue::ToWebCanvas(&canvas),
WebRect(0, 0, size.width, size.height));
return true;
}
#if !defined(OS_MACOSX)
void MakeBitmapOpaque(SkBitmap* bitmap) {
SkAutoLockPixels lock(*bitmap);
DCHECK(bitmap->config() == SkBitmap::kARGB_8888_Config);
for (int y = 0; y < bitmap->height(); ++y) {
uint32_t* row = bitmap->getAddr32(0, y);
for (int x = 0; x < bitmap->width(); ++x)
row[x] |= 0xFF000000; // Set alpha bits to 1.
}
}
#endif
void CaptureSnapshot(WebView* view, SkBitmap* snapshot) {
skia::PlatformCanvas canvas;
if (!PaintViewIntoCanvas(view, canvas))
return;
SkDevice* device = skia::GetTopDevice(canvas);
const SkBitmap& bitmap = device->accessBitmap(false);
bitmap.copyTo(snapshot, SkBitmap::kARGB_8888_Config);
#if !defined(OS_MACOSX)
// Only the expected PNGs for Mac have a valid alpha channel.
MakeBitmapOpaque(snapshot);
#endif
}
} // namespace
WebKitTestRunner::WebKitTestRunner(RenderView* render_view)
: RenderViewObserver(render_view) {
}
WebKitTestRunner::~WebKitTestRunner() {
}
void WebKitTestRunner::DidClearWindowObject(WebFrame* frame) {
WebTestingSupport::injectInternalsObject(frame);
}
void WebKitTestRunner::DidFinishLoad(WebFrame* frame) {
if (!frame->parent())
Send(new ShellViewHostMsg_DidFinishLoad(routing_id()));
}
bool WebKitTestRunner::OnMessageReceived(const IPC::Message& message) {
bool handled = true;
IPC_BEGIN_MESSAGE_MAP(WebKitTestRunner, message)
IPC_MESSAGE_HANDLER(ShellViewMsg_CaptureTextDump, OnCaptureTextDump)
IPC_MESSAGE_HANDLER(ShellViewMsg_CaptureImageDump, OnCaptureImageDump)
IPC_MESSAGE_UNHANDLED(handled = false)
IPC_END_MESSAGE_MAP()
return handled;
}
void WebKitTestRunner::OnCaptureTextDump(bool as_text,
bool printing,
bool recursive) {
WebFrame* frame = render_view()->GetWebView()->mainFrame();
std::string dump;
if (as_text) {
dump = DumpFramesAsText(frame, printing, recursive);
} else {
WebFrame::RenderAsTextControls render_text_behavior =
WebFrame::RenderAsTextNormal;
if (printing)
render_text_behavior |= WebFrame::RenderAsTextPrinting;
dump = frame->renderTreeAsText(render_text_behavior).utf8();
dump.append(DumpFrameScrollPosition(frame, recursive));
}
Send(new ShellViewHostMsg_TextDump(routing_id(), dump));
}
void WebKitTestRunner::OnCaptureImageDump(
const std::string& expected_pixel_hash) {
SkBitmap snapshot;
CaptureSnapshot(render_view()->GetWebView(), &snapshot);
SkAutoLockPixels snapshot_lock(snapshot);
base::MD5Digest digest;
#if defined(OS_ANDROID)
// On Android, pixel layout is RGBA, however, other Chrome platforms use BGRA.
const uint8_t* raw_pixels =
reinterpret_cast<const uint8_t*>(snapshot.getPixels());
size_t snapshot_size = snapshot.getSize();
scoped_array<uint8_t> reordered_pixels(new uint8_t[snapshot_size]);
for (size_t i = 0; i < snapshot_size; i += 4) {
reordered_pixels[i] = raw_pixels[i + 2];
reordered_pixels[i + 1] = raw_pixels[i + 1];
reordered_pixels[i + 2] = raw_pixels[i];
reordered_pixels[i + 3] = raw_pixels[i + 3];
}
base::MD5Sum(reordered_pixels.get(), snapshot_size, &digest);
#else
base::MD5Sum(snapshot.getPixels(), snapshot.getSize(), &digest);
#endif
std::string actual_pixel_hash = base::MD5DigestToBase16(digest);
if (actual_pixel_hash == expected_pixel_hash) {
SkBitmap empty_image;
Send(new ShellViewHostMsg_ImageDump(
routing_id(), actual_pixel_hash, empty_image));
return;
}
Send(new ShellViewHostMsg_ImageDump(
routing_id(), actual_pixel_hash, snapshot));
}
} // namespace content
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