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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/renderer/pepper/pepper_file_chooser_host.h"
#include "base/files/file_path.h"
#include "base/strings/utf_string_conversions.h"
#include "content/public/renderer/renderer_ppapi_host.h"
#include "content/renderer/render_view_impl.h"
#include "ppapi/c/pp_errors.h"
#include "ppapi/host/dispatch_host_message.h"
#include "ppapi/host/ppapi_host.h"
#include "ppapi/proxy/ppapi_messages.h"
#include "ppapi/proxy/ppb_file_ref_proxy.h"
#include "third_party/WebKit/public/platform/WebCString.h"
#include "third_party/WebKit/public/platform/WebString.h"
#include "third_party/WebKit/public/platform/WebVector.h"
#include "third_party/WebKit/public/web/WebFileChooserCompletion.h"
#include "third_party/WebKit/public/web/WebFileChooserParams.h"
#include "webkit/plugins/ppapi/ppb_file_ref_impl.h"
namespace content {
class PepperFileChooserHost::CompletionHandler
: public WebKit::WebFileChooserCompletion {
public:
CompletionHandler(const base::WeakPtr<PepperFileChooserHost>& host)
: host_(host) {
}
virtual ~CompletionHandler() {}
virtual void didChooseFile(
const WebKit::WebVector<WebKit::WebString>& file_names) {
if (host_.get()) {
std::vector<PepperFileChooserHost::ChosenFileInfo> files;
for (size_t i = 0; i < file_names.size(); i++) {
files.push_back(PepperFileChooserHost::ChosenFileInfo(
file_names[i].utf8(), std::string()));
}
host_->StoreChosenFiles(files);
}
// It is the responsibility of this method to delete the instance.
delete this;
}
virtual void didChooseFile(
const WebKit::WebVector<SelectedFileInfo>& file_names) {
if (host_.get()) {
std::vector<PepperFileChooserHost::ChosenFileInfo> files;
for (size_t i = 0; i < file_names.size(); i++) {
files.push_back(PepperFileChooserHost::ChosenFileInfo(
file_names[i].path.utf8(),
file_names[i].displayName.utf8()));
}
host_->StoreChosenFiles(files);
}
// It is the responsibility of this method to delete the instance.
delete this;
}
private:
base::WeakPtr<PepperFileChooserHost> host_;
DISALLOW_COPY_AND_ASSIGN(CompletionHandler);
};
PepperFileChooserHost::ChosenFileInfo::ChosenFileInfo(
const std::string& path,
const std::string& display_name)
: path(path),
display_name(display_name) {
}
PepperFileChooserHost::PepperFileChooserHost(
RendererPpapiHost* host,
PP_Instance instance,
PP_Resource resource)
: ResourceHost(host->GetPpapiHost(), instance, resource),
renderer_ppapi_host_(host),
handler_(NULL) {
}
PepperFileChooserHost::~PepperFileChooserHost() {
}
int32_t PepperFileChooserHost::OnResourceMessageReceived(
const IPC::Message& msg,
ppapi::host::HostMessageContext* context) {
IPC_BEGIN_MESSAGE_MAP(PepperFileChooserHost, msg)
PPAPI_DISPATCH_HOST_RESOURCE_CALL(PpapiHostMsg_FileChooser_Show, OnShow)
IPC_END_MESSAGE_MAP()
return PP_ERROR_FAILED;
}
void PepperFileChooserHost::StoreChosenFiles(
const std::vector<ChosenFileInfo>& files) {
std::vector<ppapi::PPB_FileRef_CreateInfo> chosen_files;
for (size_t i = 0; i < files.size(); i++) {
#if defined(OS_WIN)
base::FilePath file_path(UTF8ToWide(files[i].path));
#else
base::FilePath file_path(files[i].path);
#endif
webkit::ppapi::PPB_FileRef_Impl* ref =
webkit::ppapi::PPB_FileRef_Impl::CreateExternal(
pp_instance(), file_path, files[i].display_name);
ppapi::PPB_FileRef_CreateInfo create_info;
ppapi::proxy::PPB_FileRef_Proxy::SerializeFileRef(ref->GetReference(),
&create_info);
chosen_files.push_back(create_info);
}
reply_context_.params.set_result(
(chosen_files.size() > 0) ? PP_OK : PP_ERROR_USERCANCEL);
host()->SendReply(reply_context_,
PpapiPluginMsg_FileChooser_ShowReply(chosen_files));
reply_context_ = ppapi::host::ReplyMessageContext();
handler_ = NULL; // Handler deletes itself.
}
int32_t PepperFileChooserHost::OnShow(
ppapi::host::HostMessageContext* context,
bool save_as,
bool open_multiple,
const std::string& suggested_file_name,
const std::vector<std::string>& accept_mime_types) {
if (handler_)
return PP_ERROR_INPROGRESS; // Already pending.
if (!host()->permissions().HasPermission(
ppapi::PERMISSION_BYPASS_USER_GESTURE) &&
!renderer_ppapi_host_->HasUserGesture(pp_instance())) {
return PP_ERROR_NO_USER_GESTURE;
}
WebKit::WebFileChooserParams params;
if (save_as) {
params.saveAs = true;
params.initialValue = WebKit::WebString::fromUTF8(
suggested_file_name.data(), suggested_file_name.size());
} else {
params.multiSelect = open_multiple;
}
std::vector<WebKit::WebString> mine_types(accept_mime_types.size());
for (size_t i = 0; i < accept_mime_types.size(); i++) {
mine_types[i] = WebKit::WebString::fromUTF8(
accept_mime_types[i].data(), accept_mime_types[i].size());
}
params.acceptTypes = mine_types;
params.directory = false;
handler_ = new CompletionHandler(AsWeakPtr());
RenderViewImpl* render_view = static_cast<RenderViewImpl*>(
renderer_ppapi_host_->GetRenderViewForInstance(pp_instance()));
if (!render_view || !render_view->runFileChooser(params, handler_)) {
delete handler_;
handler_ = NULL;
return PP_ERROR_NOACCESS;
}
reply_context_ = context->MakeReplyMessageContext();
return PP_OK_COMPLETIONPENDING;
}
} // namespace content
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