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// Copyright (c) 2011 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 "webkit/plugins/ppapi/ppb_file_chooser_impl.h"
#include <string>
#include <vector>
#include "base/logging.h"
#include "base/sys_string_conversions.h"
#include "ppapi/c/pp_completion_callback.h"
#include "ppapi/c/pp_errors.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebCString.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebFileChooserCompletion.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebFileChooserParams.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebString.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebVector.h"
#include "webkit/plugins/ppapi/callbacks.h"
#include "webkit/plugins/ppapi/common.h"
#include "webkit/plugins/ppapi/ppb_file_ref_impl.h"
#include "webkit/plugins/ppapi/plugin_delegate.h"
#include "webkit/plugins/ppapi/plugin_module.h"
#include "webkit/plugins/ppapi/ppapi_plugin_instance.h"
#include "webkit/plugins/ppapi/resource_tracker.h"
#include "webkit/glue/webkit_glue.h"
using ppapi::thunk::PPB_FileChooser_API;
using WebKit::WebCString;
using WebKit::WebFileChooserCompletion;
using WebKit::WebFileChooserParams;
using WebKit::WebString;
using WebKit::WebVector;
namespace webkit {
namespace ppapi {
namespace {
class FileChooserCompletionImpl : public WebFileChooserCompletion {
public:
FileChooserCompletionImpl(PPB_FileChooser_Impl* file_chooser)
: file_chooser_(file_chooser) {
DCHECK(file_chooser_);
}
virtual ~FileChooserCompletionImpl() {}
virtual void didChooseFile(const WebVector<WebString>& file_names) {
std::vector<std::string> files;
for (size_t i = 0; i < file_names.size(); i++)
files.push_back(file_names[i].utf8());
file_chooser_->StoreChosenFiles(files);
}
private:
scoped_refptr<PPB_FileChooser_Impl> file_chooser_;
};
} // namespace
PPB_FileChooser_Impl::PPB_FileChooser_Impl(
PluginInstance* instance,
const PP_FileChooserOptions_Dev* options)
: Resource(instance),
mode_(options->mode),
accept_mime_types_(options->accept_mime_types ?
options->accept_mime_types : ""),
next_chosen_file_index_(0) {
}
PPB_FileChooser_Impl::~PPB_FileChooser_Impl() {
}
// static
PP_Resource PPB_FileChooser_Impl::Create(
PP_Instance pp_instance,
const PP_FileChooserOptions_Dev* options) {
PluginInstance* instance = ResourceTracker::Get()->GetInstance(pp_instance);
if (!instance)
return 0;
if ((options->mode != PP_FILECHOOSERMODE_OPEN) &&
(options->mode != PP_FILECHOOSERMODE_OPENMULTIPLE))
return 0;
PPB_FileChooser_Impl* chooser = new PPB_FileChooser_Impl(instance, options);
return chooser->GetReference();
}
PPB_FileChooser_Impl* PPB_FileChooser_Impl::AsPPB_FileChooser_Impl() {
return this;
}
PPB_FileChooser_API* PPB_FileChooser_Impl::AsPPB_FileChooser_API() {
return this;
}
void PPB_FileChooser_Impl::StoreChosenFiles(
const std::vector<std::string>& files) {
chosen_files_.clear();
next_chosen_file_index_ = 0;
for (std::vector<std::string>::const_iterator it = files.begin();
it != files.end(); ++it) {
#if defined(OS_WIN)
FilePath file_path(base::SysUTF8ToWide(*it));
#else
FilePath file_path(*it);
#endif
chosen_files_.push_back(make_scoped_refptr(
new PPB_FileRef_Impl(instance(), file_path)));
}
RunCallback((chosen_files_.size() > 0) ? PP_OK : PP_ERROR_USERCANCEL);
}
int32_t PPB_FileChooser_Impl::ValidateCallback(
const PP_CompletionCallback& callback) {
// We only support non-blocking calls.
if (!callback.func)
return PP_ERROR_BADARGUMENT;
if (callback_.get() && !callback_->completed())
return PP_ERROR_INPROGRESS;
return PP_OK;
}
void PPB_FileChooser_Impl::RegisterCallback(
const PP_CompletionCallback& callback) {
DCHECK(callback.func);
DCHECK(!callback_.get() || callback_->completed());
PP_Resource resource_id = GetReferenceNoAddRef();
CHECK(resource_id);
callback_ = new TrackedCompletionCallback(
instance()->module()->GetCallbackTracker(), resource_id, callback);
}
void PPB_FileChooser_Impl::RunCallback(int32_t result) {
scoped_refptr<TrackedCompletionCallback> callback;
callback.swap(callback_);
callback->Run(result); // Will complete abortively if necessary.
}
int32_t PPB_FileChooser_Impl::Show(PP_CompletionCallback callback) {
int32_t rv = ValidateCallback(callback);
if (rv != PP_OK)
return rv;
DCHECK((mode_ == PP_FILECHOOSERMODE_OPEN) ||
(mode_ == PP_FILECHOOSERMODE_OPENMULTIPLE));
WebFileChooserParams params;
params.multiSelect = (mode_ == PP_FILECHOOSERMODE_OPENMULTIPLE);
params.acceptTypes = WebString::fromUTF8(accept_mime_types_);
params.directory = false;
if (!instance()->delegate()->RunFileChooser(params,
new FileChooserCompletionImpl(this)))
return PP_ERROR_FAILED;
RegisterCallback(callback);
return PP_OK_COMPLETIONPENDING;
}
PP_Resource PPB_FileChooser_Impl::GetNextChosenFile() {
if (next_chosen_file_index_ >= chosen_files_.size())
return 0;
return chosen_files_[next_chosen_file_index_++]->GetReference();
}
} // namespace ppapi
} // namespace webkit
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