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// Copyright 2014 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 "components/pdf/renderer/pepper_pdf_host.h"
#include "components/pdf/common/pdf_messages.h"
#include "components/strings/grit/components_strings.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 "content/public/renderer/renderer_ppapi_host.h"
#include "ppapi/host/dispatch_host_message.h"
#include "ppapi/host/host_message_context.h"
#include "ppapi/host/ppapi_host.h"
#include "ppapi/proxy/host_dispatcher.h"
#include "ppapi/proxy/ppapi_messages.h"
#include "ppapi/proxy/ppb_image_data_proxy.h"
#include "ppapi/shared_impl/ppb_image_data_shared.h"
#include "ppapi/shared_impl/scoped_pp_resource.h"
#include "ppapi/thunk/enter.h"
#include "ppapi/thunk/ppb_image_data_api.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 "ui/base/l10n/l10n_util.h"
#include "ui/base/layout.h"
#include "ui/base/resource/resource_bundle.h"
#include "ui/gfx/geometry/point.h"
namespace pdf {
namespace {
// --single-process model may fail in CHECK(!g_print_client) if there exist
// more than two RenderThreads, so here we use TLS for g_print_client.
// See http://crbug.com/457580.
base::LazyInstance<base::ThreadLocalPointer<PepperPDFHost::PrintClient>>::Leaky
g_print_client_tls = LAZY_INSTANCE_INITIALIZER;
std::string GetStringResource(PP_ResourceString string_id) {
int resource_id = 0;
switch (string_id) {
case PP_RESOURCESTRING_PDFGETPASSWORD:
resource_id = IDS_PDF_NEED_PASSWORD;
break;
case PP_RESOURCESTRING_PDFLOADING:
resource_id = IDS_PDF_PAGE_LOADING;
break;
case PP_RESOURCESTRING_PDFLOAD_FAILED:
resource_id = IDS_PDF_PAGE_LOAD_FAILED;
break;
case PP_RESOURCESTRING_PDFPROGRESSLOADING:
resource_id = IDS_PDF_PROGRESS_LOADING;
break;
}
return l10n_util::GetStringUTF8(resource_id);
}
} // namespace
PepperPDFHost::PepperPDFHost(content::RendererPpapiHost* host,
PP_Instance instance,
PP_Resource resource)
: ppapi::host::ResourceHost(host->GetPpapiHost(), instance, resource),
host_(host) {}
PepperPDFHost::~PepperPDFHost() {}
// static
bool PepperPDFHost::InvokePrintingForInstance(PP_Instance instance_id) {
return g_print_client_tls.Pointer()->Get()
? g_print_client_tls.Pointer()->Get()->Print(instance_id)
: false;
}
// static
void PepperPDFHost::SetPrintClient(PepperPDFHost::PrintClient* client) {
CHECK(!g_print_client_tls.Pointer()->Get())
<< "There should only be a single PrintClient for one RenderThread.";
g_print_client_tls.Pointer()->Set(client);
}
int32_t PepperPDFHost::OnResourceMessageReceived(
const IPC::Message& msg,
ppapi::host::HostMessageContext* context) {
PPAPI_BEGIN_MESSAGE_MAP(PepperPDFHost, msg)
PPAPI_DISPATCH_HOST_RESOURCE_CALL(PpapiHostMsg_PDF_GetLocalizedString,
OnHostMsgGetLocalizedString)
PPAPI_DISPATCH_HOST_RESOURCE_CALL_0(PpapiHostMsg_PDF_DidStartLoading,
OnHostMsgDidStartLoading)
PPAPI_DISPATCH_HOST_RESOURCE_CALL_0(PpapiHostMsg_PDF_DidStopLoading,
OnHostMsgDidStopLoading)
PPAPI_DISPATCH_HOST_RESOURCE_CALL(PpapiHostMsg_PDF_UserMetricsRecordAction,
OnHostMsgUserMetricsRecordAction)
PPAPI_DISPATCH_HOST_RESOURCE_CALL_0(PpapiHostMsg_PDF_HasUnsupportedFeature,
OnHostMsgHasUnsupportedFeature)
PPAPI_DISPATCH_HOST_RESOURCE_CALL_0(PpapiHostMsg_PDF_Print, OnHostMsgPrint)
PPAPI_DISPATCH_HOST_RESOURCE_CALL_0(PpapiHostMsg_PDF_SaveAs,
OnHostMsgSaveAs)
PPAPI_DISPATCH_HOST_RESOURCE_CALL(PpapiHostMsg_PDF_SetSelectedText,
OnHostMsgSetSelectedText)
PPAPI_DISPATCH_HOST_RESOURCE_CALL(PpapiHostMsg_PDF_SetLinkUnderCursor,
OnHostMsgSetLinkUnderCursor)
PPAPI_DISPATCH_HOST_RESOURCE_CALL(PpapiHostMsg_PDF_SetContentRestriction,
OnHostMsgSetContentRestriction)
PPAPI_END_MESSAGE_MAP()
return PP_ERROR_FAILED;
}
int32_t PepperPDFHost::OnHostMsgGetLocalizedString(
ppapi::host::HostMessageContext* context,
PP_ResourceString string_id) {
std::string rv = GetStringResource(string_id);
context->reply_msg = PpapiPluginMsg_PDF_GetLocalizedStringReply(rv);
return PP_OK;
}
int32_t PepperPDFHost::OnHostMsgDidStartLoading(
ppapi::host::HostMessageContext* context) {
content::PepperPluginInstance* instance =
host_->GetPluginInstance(pp_instance());
if (!instance)
return PP_ERROR_FAILED;
instance->GetRenderView()->DidStartLoading();
return PP_OK;
}
int32_t PepperPDFHost::OnHostMsgDidStopLoading(
ppapi::host::HostMessageContext* context) {
content::PepperPluginInstance* instance =
host_->GetPluginInstance(pp_instance());
if (!instance)
return PP_ERROR_FAILED;
instance->GetRenderView()->DidStopLoading();
return PP_OK;
}
int32_t PepperPDFHost::OnHostMsgSetContentRestriction(
ppapi::host::HostMessageContext* context,
int restrictions) {
content::PepperPluginInstance* instance =
host_->GetPluginInstance(pp_instance());
if (!instance)
return PP_ERROR_FAILED;
instance->GetRenderView()->Send(new PDFHostMsg_PDFUpdateContentRestrictions(
instance->GetRenderView()->GetRoutingID(), restrictions));
return PP_OK;
}
int32_t PepperPDFHost::OnHostMsgUserMetricsRecordAction(
ppapi::host::HostMessageContext* context,
const std::string& action) {
if (action.empty())
return PP_ERROR_FAILED;
content::RenderThread::Get()->RecordComputedAction(action);
return PP_OK;
}
int32_t PepperPDFHost::OnHostMsgHasUnsupportedFeature(
ppapi::host::HostMessageContext* context) {
content::PepperPluginInstance* instance =
host_->GetPluginInstance(pp_instance());
if (!instance)
return PP_ERROR_FAILED;
blink::WebView* view =
instance->GetContainer()->element().document().frame()->view();
content::RenderView* render_view = content::RenderView::FromWebView(view);
render_view->Send(
new PDFHostMsg_PDFHasUnsupportedFeature(render_view->GetRoutingID()));
return PP_OK;
}
int32_t PepperPDFHost::OnHostMsgPrint(
ppapi::host::HostMessageContext* context) {
return InvokePrintingForInstance(pp_instance()) ? PP_OK : PP_ERROR_FAILED;
}
int32_t PepperPDFHost::OnHostMsgSaveAs(
ppapi::host::HostMessageContext* context) {
content::PepperPluginInstance* instance =
host_->GetPluginInstance(pp_instance());
if (!instance)
return PP_ERROR_FAILED;
GURL url = instance->GetPluginURL();
content::RenderView* render_view = instance->GetRenderView();
blink::WebLocalFrame* frame =
render_view->GetWebView()->mainFrame()->toWebLocalFrame();
content::Referrer referrer = content::Referrer::SanitizeForRequest(
url, content::Referrer(frame->document().url(),
frame->document().referrerPolicy()));
render_view->Send(
new PDFHostMsg_PDFSaveURLAs(render_view->GetRoutingID(), url, referrer));
return PP_OK;
}
int32_t PepperPDFHost::OnHostMsgSetSelectedText(
ppapi::host::HostMessageContext* context,
const base::string16& selected_text) {
content::PepperPluginInstance* instance =
host_->GetPluginInstance(pp_instance());
if (!instance)
return PP_ERROR_FAILED;
instance->SetSelectedText(selected_text);
return PP_OK;
}
int32_t PepperPDFHost::OnHostMsgSetLinkUnderCursor(
ppapi::host::HostMessageContext* context,
const std::string& url) {
content::PepperPluginInstance* instance =
host_->GetPluginInstance(pp_instance());
if (!instance)
return PP_ERROR_FAILED;
instance->SetLinkUnderCursor(url);
return PP_OK;
}
} // namespace pdf
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