blob: 646489c4f603a460caa5620f2f032490479364b2 [file] [log] [blame]
// 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 "chrome/renderer/pepper/ppb_pdf_impl.h"
#include "base/command_line.h"
#include "base/metrics/histogram.h"
#include "base/numerics/safe_conversions.h"
#include "base/strings/utf_string_conversions.h"
#include "build/build_config.h"
#include "chrome/common/chrome_switches.h"
#include "chrome/common/render_messages.h"
#include "chrome/renderer/printing/print_web_view_helper.h"
#include "content/public/common/child_process_sandbox_support_linux.h"
#include "content/public/common/referrer.h"
#include "content/public/renderer/pepper_plugin_instance.h"
#include "content/public/renderer/render_thread.h"
#include "content/public/renderer/render_view.h"
#include "grit/webkit_resources.h"
#include "grit/webkit_strings.h"
#include "ppapi/c/pp_resource.h"
#include "ppapi/c/private/ppb_pdf.h"
#include "ppapi/c/trusted/ppb_browser_font_trusted.h"
#include "ppapi/shared_impl/ppapi_globals.h"
#include "ppapi/shared_impl/resource.h"
#include "ppapi/shared_impl/resource_tracker.h"
#include "ppapi/shared_impl/var.h"
#include "third_party/WebKit/public/web/WebDocument.h"
#include "third_party/WebKit/public/web/WebElement.h"
#include "third_party/WebKit/public/web/WebLocalFrame.h"
#include "third_party/WebKit/public/web/WebPluginContainer.h"
#include "third_party/WebKit/public/web/WebView.h"
#include "third_party/icu/source/i18n/unicode/usearch.h"
#include "third_party/skia/include/core/SkBitmap.h"
#include "ui/base/l10n/l10n_util.h"
#include "ui/base/resource/resource_bundle.h"
using ppapi::PpapiGlobals;
using blink::WebElement;
using blink::WebView;
using content::RenderThread;
namespace {
#if defined(OS_POSIX) && !defined(OS_MACOSX) && !defined(OS_ANDROID)
class PrivateFontFile : public ppapi::Resource {
public:
PrivateFontFile(PP_Instance instance, int fd)
: Resource(ppapi::OBJECT_IS_IMPL, instance), fd_(fd) {}
bool GetFontTable(uint32_t table, void* output, uint32_t* output_length) {
size_t temp_size = static_cast<size_t>(*output_length);
bool rv = content::GetFontTable(
fd_, table, 0 /* offset */, static_cast<uint8_t*>(output), &temp_size);
*output_length = base::checked_cast<uint32_t>(temp_size);
return rv;
}
protected:
virtual ~PrivateFontFile() {}
private:
int fd_;
};
#endif
struct ResourceImageInfo {
PP_ResourceImage pp_id;
int res_id;
};
static const ResourceImageInfo kResourceImageMap[] = {
{PP_RESOURCEIMAGE_PDF_BUTTON_FTP, IDR_PDF_BUTTON_FTP},
{PP_RESOURCEIMAGE_PDF_BUTTON_FTP_HOVER, IDR_PDF_BUTTON_FTP_HOVER},
{PP_RESOURCEIMAGE_PDF_BUTTON_FTP_PRESSED, IDR_PDF_BUTTON_FTP_PRESSED},
{PP_RESOURCEIMAGE_PDF_BUTTON_FTW, IDR_PDF_BUTTON_FTW},
{PP_RESOURCEIMAGE_PDF_BUTTON_FTW_HOVER, IDR_PDF_BUTTON_FTW_HOVER},
{PP_RESOURCEIMAGE_PDF_BUTTON_FTW_PRESSED, IDR_PDF_BUTTON_FTW_PRESSED},
{PP_RESOURCEIMAGE_PDF_BUTTON_ZOOMIN_END, IDR_PDF_BUTTON_ZOOMIN_END},
{PP_RESOURCEIMAGE_PDF_BUTTON_ZOOMIN_END_HOVER,
IDR_PDF_BUTTON_ZOOMIN_END_HOVER},
{PP_RESOURCEIMAGE_PDF_BUTTON_ZOOMIN_END_PRESSED,
IDR_PDF_BUTTON_ZOOMIN_END_PRESSED},
{PP_RESOURCEIMAGE_PDF_BUTTON_ZOOMIN, IDR_PDF_BUTTON_ZOOMIN},
{PP_RESOURCEIMAGE_PDF_BUTTON_ZOOMIN_HOVER, IDR_PDF_BUTTON_ZOOMIN_HOVER},
{PP_RESOURCEIMAGE_PDF_BUTTON_ZOOMIN_PRESSED, IDR_PDF_BUTTON_ZOOMIN_PRESSED},
{PP_RESOURCEIMAGE_PDF_BUTTON_ZOOMOUT, IDR_PDF_BUTTON_ZOOMOUT},
{PP_RESOURCEIMAGE_PDF_BUTTON_ZOOMOUT_HOVER, IDR_PDF_BUTTON_ZOOMOUT_HOVER},
{PP_RESOURCEIMAGE_PDF_BUTTON_ZOOMOUT_PRESSED,
IDR_PDF_BUTTON_ZOOMOUT_PRESSED},
{PP_RESOURCEIMAGE_PDF_BUTTON_SAVE, IDR_PDF_BUTTON_SAVE},
{PP_RESOURCEIMAGE_PDF_BUTTON_SAVE_HOVER, IDR_PDF_BUTTON_SAVE_HOVER},
{PP_RESOURCEIMAGE_PDF_BUTTON_SAVE_PRESSED, IDR_PDF_BUTTON_SAVE_PRESSED},
{PP_RESOURCEIMAGE_PDF_BUTTON_PRINT, IDR_PDF_BUTTON_PRINT},
{PP_RESOURCEIMAGE_PDF_BUTTON_PRINT_HOVER, IDR_PDF_BUTTON_PRINT_HOVER},
{PP_RESOURCEIMAGE_PDF_BUTTON_PRINT_PRESSED, IDR_PDF_BUTTON_PRINT_PRESSED},
{PP_RESOURCEIMAGE_PDF_BUTTON_PRINT_DISABLED, IDR_PDF_BUTTON_PRINT_DISABLED},
{PP_RESOURCEIMAGE_PDF_BUTTON_THUMBNAIL_0, IDR_PDF_THUMBNAIL_0},
{PP_RESOURCEIMAGE_PDF_BUTTON_THUMBNAIL_1, IDR_PDF_THUMBNAIL_1},
{PP_RESOURCEIMAGE_PDF_BUTTON_THUMBNAIL_2, IDR_PDF_THUMBNAIL_2},
{PP_RESOURCEIMAGE_PDF_BUTTON_THUMBNAIL_3, IDR_PDF_THUMBNAIL_3},
{PP_RESOURCEIMAGE_PDF_BUTTON_THUMBNAIL_4, IDR_PDF_THUMBNAIL_4},
{PP_RESOURCEIMAGE_PDF_BUTTON_THUMBNAIL_5, IDR_PDF_THUMBNAIL_5},
{PP_RESOURCEIMAGE_PDF_BUTTON_THUMBNAIL_6, IDR_PDF_THUMBNAIL_6},
{PP_RESOURCEIMAGE_PDF_BUTTON_THUMBNAIL_7, IDR_PDF_THUMBNAIL_7},
{PP_RESOURCEIMAGE_PDF_BUTTON_THUMBNAIL_8, IDR_PDF_THUMBNAIL_8},
{PP_RESOURCEIMAGE_PDF_BUTTON_THUMBNAIL_9, IDR_PDF_THUMBNAIL_9},
{PP_RESOURCEIMAGE_PDF_BUTTON_THUMBNAIL_NUM_BACKGROUND,
IDR_PDF_THUMBNAIL_NUM_BACKGROUND},
{PP_RESOURCEIMAGE_PDF_PROGRESS_BAR_0, IDR_PDF_PROGRESS_BAR_0},
{PP_RESOURCEIMAGE_PDF_PROGRESS_BAR_1, IDR_PDF_PROGRESS_BAR_1},
{PP_RESOURCEIMAGE_PDF_PROGRESS_BAR_2, IDR_PDF_PROGRESS_BAR_2},
{PP_RESOURCEIMAGE_PDF_PROGRESS_BAR_3, IDR_PDF_PROGRESS_BAR_3},
{PP_RESOURCEIMAGE_PDF_PROGRESS_BAR_4, IDR_PDF_PROGRESS_BAR_4},
{PP_RESOURCEIMAGE_PDF_PROGRESS_BAR_5, IDR_PDF_PROGRESS_BAR_5},
{PP_RESOURCEIMAGE_PDF_PROGRESS_BAR_6, IDR_PDF_PROGRESS_BAR_6},
{PP_RESOURCEIMAGE_PDF_PROGRESS_BAR_7, IDR_PDF_PROGRESS_BAR_7},
{PP_RESOURCEIMAGE_PDF_PROGRESS_BAR_8, IDR_PDF_PROGRESS_BAR_8},
{PP_RESOURCEIMAGE_PDF_PROGRESS_BAR_BACKGROUND,
IDR_PDF_PROGRESS_BAR_BACKGROUND},
{PP_RESOURCEIMAGE_PDF_PAGE_INDICATOR_BACKGROUND,
IDR_PDF_PAGE_INDICATOR_BACKGROUND},
{PP_RESOURCEIMAGE_PDF_PAGE_DROPSHADOW, IDR_PDF_PAGE_DROPSHADOW},
{PP_RESOURCEIMAGE_PDF_PAN_SCROLL_ICON, IDR_PAN_SCROLL_ICON}, };
#if defined(ENABLE_FULL_PRINTING)
blink::WebElement GetWebElement(PP_Instance instance_id) {
content::PepperPluginInstance* instance =
content::PepperPluginInstance::Get(instance_id);
if (!instance)
return blink::WebElement();
return instance->GetContainer()->element();
}
printing::PrintWebViewHelper* GetPrintWebViewHelper(
const blink::WebElement& element) {
if (element.isNull())
return NULL;
blink::WebView* view = element.document().frame()->view();
content::RenderView* render_view = content::RenderView::FromWebView(view);
return printing::PrintWebViewHelper::Get(render_view);
}
bool IsPrintingEnabled(PP_Instance instance_id) {
blink::WebElement element = GetWebElement(instance_id);
printing::PrintWebViewHelper* helper = GetPrintWebViewHelper(element);
return helper && helper->IsPrintingEnabled();
}
#else // ENABLE_FULL_PRINTING
bool IsPrintingEnabled(PP_Instance instance_id) { return false; }
#endif // ENABLE_FULL_PRINTING
PP_Var GetLocalizedString(PP_Instance instance_id,
PP_ResourceString string_id) {
content::PepperPluginInstance* instance =
content::PepperPluginInstance::Get(instance_id);
if (!instance)
return PP_MakeUndefined();
std::string rv;
if (string_id == PP_RESOURCESTRING_PDFGETPASSWORD) {
rv = base::UTF16ToUTF8(l10n_util::GetStringUTF16(IDS_PDF_NEED_PASSWORD));
} else if (string_id == PP_RESOURCESTRING_PDFLOADING) {
rv = base::UTF16ToUTF8(l10n_util::GetStringUTF16(IDS_PDF_PAGE_LOADING));
} else if (string_id == PP_RESOURCESTRING_PDFLOAD_FAILED) {
rv = base::UTF16ToUTF8(l10n_util::GetStringUTF16(IDS_PDF_PAGE_LOAD_FAILED));
} else if (string_id == PP_RESOURCESTRING_PDFPROGRESSLOADING) {
rv = base::UTF16ToUTF8(l10n_util::GetStringUTF16(IDS_PDF_PROGRESS_LOADING));
} else {
NOTREACHED();
}
return ppapi::StringVar::StringToPPVar(rv);
}
PP_Resource GetFontFileWithFallback(
PP_Instance instance_id,
const PP_BrowserFont_Trusted_Description* description,
PP_PrivateFontCharset charset) {
#if defined(OS_POSIX) && !defined(OS_MACOSX) && !defined(OS_ANDROID)
// Validate the instance before using it below.
if (!content::PepperPluginInstance::Get(instance_id))
return 0;
scoped_refptr<ppapi::StringVar> face_name(
ppapi::StringVar::FromPPVar(description->face));
if (!face_name.get())
return 0;
int fd = content::MatchFontWithFallback(
face_name->value().c_str(),
description->weight >= PP_BROWSERFONT_TRUSTED_WEIGHT_BOLD,
description->italic,
charset,
description->family);
if (fd == -1)
return 0;
scoped_refptr<PrivateFontFile> font(new PrivateFontFile(instance_id, fd));
return font->GetReference();
#else
// For trusted PPAPI plugins, this is only needed in Linux since font loading
// on Windows and Mac works through the renderer sandbox.
return 0;
#endif
}
bool GetFontTableForPrivateFontFile(PP_Resource font_file,
uint32_t table,
void* output,
uint32_t* output_length) {
#if defined(OS_POSIX) && !defined(OS_MACOSX) && !defined(OS_ANDROID)
ppapi::Resource* resource =
PpapiGlobals::Get()->GetResourceTracker()->GetResource(font_file);
if (!resource)
return false;
PrivateFontFile* font = static_cast<PrivateFontFile*>(resource);
return font->GetFontTable(table, output, output_length);
#else
return false;
#endif
}
void SearchString(PP_Instance instance,
const unsigned short* input_string,
const unsigned short* input_term,
bool case_sensitive,
PP_PrivateFindResult** results,
int* count) {
const base::char16* string =
reinterpret_cast<const base::char16*>(input_string);
const base::char16* term = reinterpret_cast<const base::char16*>(input_term);
UErrorCode status = U_ZERO_ERROR;
UStringSearch* searcher =
usearch_open(term,
-1,
string,
-1,
RenderThread::Get()->GetLocale().c_str(),
0,
&status);
DCHECK(status == U_ZERO_ERROR || status == U_USING_FALLBACK_WARNING ||
status == U_USING_DEFAULT_WARNING);
UCollationStrength strength = case_sensitive ? UCOL_TERTIARY : UCOL_PRIMARY;
UCollator* collator = usearch_getCollator(searcher);
if (ucol_getStrength(collator) != strength) {
ucol_setStrength(collator, strength);
usearch_reset(searcher);
}
status = U_ZERO_ERROR;
int match_start = usearch_first(searcher, &status);
DCHECK(status == U_ZERO_ERROR);
std::vector<PP_PrivateFindResult> pp_results;
while (match_start != USEARCH_DONE) {
size_t matched_length = usearch_getMatchedLength(searcher);
PP_PrivateFindResult result;
result.start_index = match_start;
result.length = matched_length;
pp_results.push_back(result);
match_start = usearch_next(searcher, &status);
DCHECK(status == U_ZERO_ERROR);
}
*count = pp_results.size();
if (*count) {
*results = reinterpret_cast<PP_PrivateFindResult*>(
malloc(*count * sizeof(PP_PrivateFindResult)));
memcpy(*results, &pp_results[0], *count * sizeof(PP_PrivateFindResult));
} else {
*results = NULL;
}
usearch_close(searcher);
}
void DidStartLoading(PP_Instance instance_id) {
content::PepperPluginInstance* instance =
content::PepperPluginInstance::Get(instance_id);
if (!instance)
return;
instance->GetRenderView()->DidStartLoading();
}
void DidStopLoading(PP_Instance instance_id) {
content::PepperPluginInstance* instance =
content::PepperPluginInstance::Get(instance_id);
if (!instance)
return;
instance->GetRenderView()->DidStopLoading();
}
void SetContentRestriction(PP_Instance instance_id, int restrictions) {
content::PepperPluginInstance* instance =
content::PepperPluginInstance::Get(instance_id);
if (!instance)
return;
instance->GetRenderView()->Send(
new ChromeViewHostMsg_PDFUpdateContentRestrictions(
instance->GetRenderView()->GetRoutingID(), restrictions));
}
void HistogramPDFPageCount(PP_Instance instance, int count) {
UMA_HISTOGRAM_COUNTS_10000("PDF.PageCount", count);
}
void UserMetricsRecordAction(PP_Instance instance, PP_Var action) {
scoped_refptr<ppapi::StringVar> action_str(
ppapi::StringVar::FromPPVar(action));
if (action_str.get())
RenderThread::Get()->RecordComputedAction(action_str->value());
}
void HasUnsupportedFeature(PP_Instance instance_id) {
content::PepperPluginInstance* instance =
content::PepperPluginInstance::Get(instance_id);
if (!instance)
return;
// Only want to show an info bar if the pdf is the whole tab.
if (!instance->IsFullPagePlugin())
return;
WebView* view =
instance->GetContainer()->element().document().frame()->view();
content::RenderView* render_view = content::RenderView::FromWebView(view);
render_view->Send(new ChromeViewHostMsg_PDFHasUnsupportedFeature(
render_view->GetRoutingID()));
}
void SaveAs(PP_Instance instance_id) {
content::PepperPluginInstance* instance =
content::PepperPluginInstance::Get(instance_id);
if (!instance)
return;
GURL url = instance->GetPluginURL();
content::RenderView* render_view = instance->GetRenderView();
blink::WebLocalFrame* frame =
render_view->GetWebView()->mainFrame()->toWebLocalFrame();
content::Referrer referrer(frame->document().url(),
frame->document().referrerPolicy());
render_view->Send(new ChromeViewHostMsg_PDFSaveURLAs(
render_view->GetRoutingID(), url, referrer));
}
PP_Bool IsFeatureEnabled(PP_Instance instance, PP_PDFFeature feature) {
switch (feature) {
case PP_PDFFEATURE_HIDPI:
return PP_TRUE;
case PP_PDFFEATURE_PRINTING:
return IsPrintingEnabled(instance) ? PP_TRUE : PP_FALSE;
}
return PP_FALSE;
}
PP_Resource GetResourceImageForScale(PP_Instance instance_id,
PP_ResourceImage image_id,
float scale) {
int res_id = 0;
for (size_t i = 0; i < arraysize(kResourceImageMap); ++i) {
if (kResourceImageMap[i].pp_id == image_id) {
res_id = kResourceImageMap[i].res_id;
break;
}
}
if (res_id == 0)
return 0;
// Validate the instance.
content::PepperPluginInstance* instance =
content::PepperPluginInstance::Get(instance_id);
if (!instance)
return 0;
gfx::ImageSkia* res_image_skia =
ResourceBundle::GetSharedInstance().GetImageSkiaNamed(res_id);
if (!res_image_skia)
return 0;
return instance->CreateImage(res_image_skia, scale);
}
PP_Resource GetResourceImage(PP_Instance instance_id,
PP_ResourceImage image_id) {
return GetResourceImageForScale(instance_id, image_id, 1.0f);
}
PP_Var ModalPromptForPassword(PP_Instance instance_id, PP_Var message) {
content::PepperPluginInstance* instance =
content::PepperPluginInstance::Get(instance_id);
if (!instance)
return PP_MakeUndefined();
std::string actual_value;
scoped_refptr<ppapi::StringVar> message_string(
ppapi::StringVar::FromPPVar(message));
IPC::SyncMessage* msg = new ChromeViewHostMsg_PDFModalPromptForPassword(
instance->GetRenderView()->GetRoutingID(),
message_string->value(),
&actual_value);
msg->EnableMessagePumping();
instance->GetRenderView()->Send(msg);
return ppapi::StringVar::StringToPPVar(actual_value);
}
PP_Bool IsOutOfProcess(PP_Instance instance_id) { return PP_FALSE; }
void SetSelectedText(PP_Instance instance_id, const char* selected_text) {
// This function is intended for out of process PDF plugin.
NOTIMPLEMENTED();
}
void SetLinkUnderCursor(PP_Instance instance_id, const char* url) {
content::PepperPluginInstance* instance =
content::PepperPluginInstance::Get(instance_id);
if (!instance)
return;
instance->SetLinkUnderCursor(url);
}
const PPB_PDF ppb_pdf = { //
&GetLocalizedString, //
&GetResourceImage, //
&GetFontFileWithFallback, //
&GetFontTableForPrivateFontFile, //
&SearchString, //
&DidStartLoading, //
&DidStopLoading, //
&SetContentRestriction, //
&HistogramPDFPageCount, //
&UserMetricsRecordAction, //
&HasUnsupportedFeature, //
&SaveAs, //
&PPB_PDF_Impl::InvokePrintingForInstance, //
&IsFeatureEnabled, //
&GetResourceImageForScale, //
&ModalPromptForPassword, //
&IsOutOfProcess, //
&SetSelectedText, //
&SetLinkUnderCursor, //
};
} // namespace
// static
const PPB_PDF* PPB_PDF_Impl::GetInterface() { return &ppb_pdf; }
// static
void PPB_PDF_Impl::InvokePrintingForInstance(PP_Instance instance_id) {
#if defined(ENABLE_FULL_PRINTING)
blink::WebElement element = GetWebElement(instance_id);
printing::PrintWebViewHelper* helper = GetPrintWebViewHelper(element);
if (helper)
helper->PrintNode(element);
#endif // ENABLE_FULL_PRINTING
}