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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/web_intents_host.h"
#include "base/bind.h"
#include "base/bind_helpers.h"
#include "base/utf_string_conversions.h"
#include "content/common/intents_messages.h"
#include "content/public/renderer/v8_value_converter.h"
#include "content/renderer/render_view_impl.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebBindings.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebBlob.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebDeliveredIntentClient.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebDocument.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebFrame.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebIntent.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebIntentRequest.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebView.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/platform/WebCString.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/platform/WebFileSystem.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/platform/WebSerializedScriptValue.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/platform/WebString.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/platform/WebVector.h"
#include "webkit/fileapi/file_system_util.h"
#include "webkit/glue/cpp_bound_class.h"
using WebKit::WebBindings;
using WebKit::WebBlob;
using WebKit::WebCString;
using WebKit::WebDeliveredIntentClient;
using WebKit::WebFrame;
using WebKit::WebIntent;
using WebKit::WebIntentRequest;
using WebKit::WebString;
using WebKit::WebSerializedScriptValue;
using WebKit::WebVector;
namespace content {
namespace {
// Reads reply value, either from the data field, or the data_file field.
WebSerializedScriptValue GetReplyValue(
const webkit_glue::WebIntentReply& reply) {
if (reply.data_file_size > -1) {
// TODO(smckay): seralize the blob value in the web intent script
// context. We simply don't know how to do this at this time.
// The following code kills the renderer when we call toV8Value.
// v8::HandleScope scope;
// v8::Local<v8::Context> ctx = ....which context?
// v8::Context::Scope cscope(ctx);
// WebKit::WebBlob blob = WebBlob::createFromFile(
// WebString::fromUTF8(reply.data_file.AsUTF8Unsafe()),
// reply.data_file_size);
// v8::Handle<v8::Value> value = blob.toV8Value();
// return WebSerializedScriptValue::serialize(value);
return WebSerializedScriptValue::fromString(
ASCIIToUTF16(reply.data_file.AsUTF8Unsafe()));
} else {
return WebSerializedScriptValue::fromString(reply.data);
}
}
} // namespace
class DeliveredIntentClientImpl : public WebDeliveredIntentClient {
public:
explicit DeliveredIntentClientImpl(WebIntentsHost* host) : host_(host) {}
virtual ~DeliveredIntentClientImpl() {}
virtual void postResult(const WebSerializedScriptValue& data) const {
host_->OnResult(data.toString());
}
virtual void postFailure(const WebSerializedScriptValue& data) const {
host_->OnFailure(data.toString());
}
virtual void destroy() OVERRIDE {
}
private:
WebIntentsHost* host_;
};
WebIntentsHost::WebIntentsHost(RenderViewImpl* render_view)
: RenderViewObserver(render_view),
id_counter_(0) {
}
WebIntentsHost::~WebIntentsHost() {
}
int WebIntentsHost::RegisterWebIntent(
const WebIntentRequest& request) {
int id = id_counter_++;
intent_requests_[id] = request;
return id;
}
bool WebIntentsHost::OnMessageReceived(const IPC::Message& message) {
bool handled = true;
IPC_BEGIN_MESSAGE_MAP(WebIntentsHost, message)
IPC_MESSAGE_HANDLER(IntentsMsg_SetWebIntentData, OnSetIntent)
IPC_MESSAGE_HANDLER(IntentsMsg_WebIntentReply, OnWebIntentReply);
IPC_MESSAGE_UNHANDLED(handled = false)
IPC_END_MESSAGE_MAP()
return handled;
}
void WebIntentsHost::OnSetIntent(const webkit_glue::WebIntentData& intent) {
intent_.reset(new webkit_glue::WebIntentData(intent));
}
void WebIntentsHost::OnWebIntentReply(
const webkit_glue::WebIntentReply& reply,
int intent_id) {
std::map<int, WebIntentRequest>::iterator request =
intent_requests_.find(intent_id);
if (request == intent_requests_.end())
return;
WebIntentRequest intent_request = request->second;
intent_requests_.erase(request);
if (reply.type == webkit_glue::WEB_INTENT_REPLY_SUCCESS) {
intent_request.postResult(GetReplyValue(reply));
} else {
intent_request.postFailure(
WebSerializedScriptValue::fromString(reply.data));
}
}
void WebIntentsHost::OnResult(const WebKit::WebString& data) {
const webkit_glue::WebIntentReply reply(
webkit_glue::WEB_INTENT_REPLY_SUCCESS, data);
Send(new IntentsHostMsg_WebIntentReply(routing_id(), reply));
}
void WebIntentsHost::OnFailure(const WebKit::WebString& data) {
const webkit_glue::WebIntentReply reply(
webkit_glue::WEB_INTENT_REPLY_FAILURE, data);
Send(new IntentsHostMsg_WebIntentReply(routing_id(), reply));
}
// We set the intent payload into all top-level frame window objects. This
// should persist the data through redirects, and not deliver it to any
// sub-frames.
void WebIntentsHost::DidCreateScriptContext(WebKit::WebFrame* frame,
v8::Handle<v8::Context> ctx,
int extension_group,
int world_id) {
if (intent_.get() == NULL || frame->top() != frame)
return;
if (ctx != frame->mainWorldScriptContext())
return;
if (!delivered_intent_client_.get()) {
delivered_intent_client_.reset(new DeliveredIntentClientImpl(this));
}
WebIntent web_intent = CreateWebIntent(frame, *intent_);
if (!web_intent.action().isEmpty())
frame->deliverIntent(web_intent, NULL, delivered_intent_client_.get());
}
WebIntent WebIntentsHost::CreateWebIntent(
WebFrame* frame, const webkit_glue::WebIntentData& intent_data) {
// Must be called with v8 scope held.
DCHECK(v8::Context::InContext());
// TODO(gbillock): Remove this block when we get rid of |extras|.
WebVector<WebString> extras_keys(intent_data.extra_data.size());
WebVector<WebString> extras_values(intent_data.extra_data.size());
std::map<string16, string16>::const_iterator iter =
intent_data.extra_data.begin();
for (size_t i = 0; iter != intent_data.extra_data.end(); ++i, ++iter) {
extras_keys[i] = iter->first;
extras_values[i] = iter->second;
}
switch (intent_data.data_type) {
case webkit_glue::WebIntentData::SERIALIZED: {
return WebIntent::create(intent_data.action, intent_data.type,
intent_data.data,
extras_keys, extras_values);
}
case webkit_glue::WebIntentData::UNSERIALIZED: {
v8::Local<v8::String> dataV8 = v8::String::New(
reinterpret_cast<const uint16_t*>(
intent_data.unserialized_data.data()),
static_cast<int>(intent_data.unserialized_data.length()));
WebSerializedScriptValue serialized_data =
WebSerializedScriptValue::serialize(dataV8);
return WebIntent::create(intent_data.action, intent_data.type,
serialized_data.toString(),
extras_keys, extras_values);
}
case webkit_glue::WebIntentData::BLOB: {
web_blob_ = WebBlob::createFromFile(
WebString::fromUTF8(intent_data.blob_file.AsUTF8Unsafe()),
intent_data.blob_length);
WebSerializedScriptValue serialized_data =
WebSerializedScriptValue::serialize(web_blob_.toV8Value());
return WebIntent::create(intent_data.action, intent_data.type,
serialized_data.toString(),
extras_keys, extras_values);
}
case webkit_glue::WebIntentData::FILESYSTEM: {
const GURL origin = GURL(frame->document().securityOrigin().toString());
const GURL root_url =
fileapi::GetFileSystemRootURI(origin,
fileapi::kFileSystemTypeIsolated);
const std::string url = base::StringPrintf(
"%s%s/%s/",
root_url.spec().c_str(),
intent_data.filesystem_id.c_str(),
intent_data.root_name.c_str());
// TODO(kmadhusu): This is a temporary hack to create a serializable file
// system. Once we have a better way to create a serializable file system,
// remove this hack.
v8::Handle<v8::Value> filesystem_V8 = frame->createSerializableFileSystem(
WebKit::WebFileSystem::TypeIsolated,
WebKit::WebString::fromUTF8(intent_data.root_name),
WebKit::WebString::fromUTF8(url));
WebSerializedScriptValue serialized_data =
WebSerializedScriptValue::serialize(filesystem_V8);
return WebIntent::create(intent_data.action, intent_data.type,
serialized_data.toString(),
extras_keys, extras_values);
}
case webkit_glue::WebIntentData::MIME_TYPE: {
scoped_ptr<V8ValueConverter> converter(
V8ValueConverter::create());
v8::Handle<v8::Value> valV8 = converter->ToV8Value(
&intent_data.mime_data, v8::Context::GetCurrent());
WebSerializedScriptValue serialized_data =
WebSerializedScriptValue::serialize(valV8);
return WebIntent::create(intent_data.action, intent_data.type,
serialized_data.toString(),
WebVector<WebString>(), WebVector<WebString>());
}
}
NOTREACHED();
return WebIntent();
}
} // namespace content
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