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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 "chrome/renderer/loadtimes_extension_bindings.h"
#include <math.h>
#include "base/time/time.h"
#include "content/public/renderer/document_state.h"
#include "net/http/http_response_info.h"
#include "third_party/WebKit/public/web/WebLocalFrame.h"
#include "v8/include/v8.h"
using blink::WebDataSource;
using blink::WebLocalFrame;
using blink::WebNavigationType;
using content::DocumentState;
// Values for CSI "tran" property
const int kTransitionLink = 0;
const int kTransitionForwardBack = 6;
const int kTransitionOther = 15;
const int kTransitionReload = 16;
namespace extensions_v8 {
static const char* const kLoadTimesExtensionName = "v8/LoadTimes";
class LoadTimesExtensionWrapper : public v8::Extension {
public:
// Creates an extension which adds a new function, chromium.GetLoadTimes()
// This function returns an object containing the following members:
// requestTime: The time the request to load the page was received
// loadTime: The time the renderer started the load process
// finishDocumentLoadTime: The time the document itself was loaded
// (this is before the onload() method is fired)
// finishLoadTime: The time all loading is done, after the onload()
// method and all resources
// navigationType: A string describing what user action initiated the load
LoadTimesExtensionWrapper() :
v8::Extension(kLoadTimesExtensionName,
"var chrome;"
"if (!chrome)"
" chrome = {};"
"chrome.loadTimes = function() {"
" native function GetLoadTimes();"
" return GetLoadTimes();"
"};"
"chrome.csi = function() {"
" native function GetCSI();"
" return GetCSI();"
"}") {}
virtual v8::Handle<v8::FunctionTemplate> GetNativeFunctionTemplate(
v8::Isolate* isolate,
v8::Handle<v8::String> name) OVERRIDE {
if (name->Equals(v8::String::NewFromUtf8(isolate, "GetLoadTimes"))) {
return v8::FunctionTemplate::New(isolate, GetLoadTimes);
} else if (name->Equals(v8::String::NewFromUtf8(isolate, "GetCSI"))) {
return v8::FunctionTemplate::New(isolate, GetCSI);
}
return v8::Handle<v8::FunctionTemplate>();
}
static const char* GetNavigationType(WebNavigationType nav_type) {
switch (nav_type) {
case blink::WebNavigationTypeLinkClicked:
return "LinkClicked";
case blink::WebNavigationTypeFormSubmitted:
return "FormSubmitted";
case blink::WebNavigationTypeBackForward:
return "BackForward";
case blink::WebNavigationTypeReload:
return "Reload";
case blink::WebNavigationTypeFormResubmitted:
return "Resubmitted";
case blink::WebNavigationTypeOther:
return "Other";
}
return "";
}
static int GetCSITransitionType(WebNavigationType nav_type) {
switch (nav_type) {
case blink::WebNavigationTypeLinkClicked:
case blink::WebNavigationTypeFormSubmitted:
case blink::WebNavigationTypeFormResubmitted:
return kTransitionLink;
case blink::WebNavigationTypeBackForward:
return kTransitionForwardBack;
case blink::WebNavigationTypeReload:
return kTransitionReload;
case blink::WebNavigationTypeOther:
return kTransitionOther;
}
return kTransitionOther;
}
static void GetLoadTimes(const v8::FunctionCallbackInfo<v8::Value>& args) {
WebLocalFrame* frame = WebLocalFrame::frameForCurrentContext();
if (frame) {
WebDataSource* data_source = frame->dataSource();
if (data_source) {
DocumentState* document_state =
DocumentState::FromDataSource(data_source);
v8::Isolate* isolate = args.GetIsolate();
v8::Local<v8::Object> load_times = v8::Object::New(isolate);
load_times->Set(
v8::String::NewFromUtf8(isolate, "requestTime"),
v8::Number::New(isolate,
document_state->request_time().ToDoubleT()));
load_times->Set(
v8::String::NewFromUtf8(isolate, "startLoadTime"),
v8::Number::New(isolate,
document_state->start_load_time().ToDoubleT()));
load_times->Set(
v8::String::NewFromUtf8(isolate, "commitLoadTime"),
v8::Number::New(isolate,
document_state->commit_load_time().ToDoubleT()));
load_times->Set(
v8::String::NewFromUtf8(isolate, "finishDocumentLoadTime"),
v8::Number::New(
isolate,
document_state->finish_document_load_time().ToDoubleT()));
load_times->Set(
v8::String::NewFromUtf8(isolate, "finishLoadTime"),
v8::Number::New(isolate,
document_state->finish_load_time().ToDoubleT()));
load_times->Set(
v8::String::NewFromUtf8(isolate, "firstPaintTime"),
v8::Number::New(isolate,
document_state->first_paint_time().ToDoubleT()));
load_times->Set(
v8::String::NewFromUtf8(isolate, "firstPaintAfterLoadTime"),
v8::Number::New(
isolate,
document_state->first_paint_after_load_time().ToDoubleT()));
load_times->Set(
v8::String::NewFromUtf8(isolate, "navigationType"),
v8::String::NewFromUtf8(
isolate, GetNavigationType(data_source->navigationType())));
load_times->Set(
v8::String::NewFromUtf8(isolate, "wasFetchedViaSpdy"),
v8::Boolean::New(isolate, document_state->was_fetched_via_spdy()));
load_times->Set(
v8::String::NewFromUtf8(isolate, "wasNpnNegotiated"),
v8::Boolean::New(isolate, document_state->was_npn_negotiated()));
load_times->Set(
v8::String::NewFromUtf8(isolate, "npnNegotiatedProtocol"),
v8::String::NewFromUtf8(
isolate, document_state->npn_negotiated_protocol().c_str()));
load_times->Set(
v8::String::NewFromUtf8(isolate, "wasAlternateProtocolAvailable"),
v8::Boolean::New(
isolate, document_state->was_alternate_protocol_available()));
load_times->Set(v8::String::NewFromUtf8(isolate, "connectionInfo"),
v8::String::NewFromUtf8(
isolate,
net::HttpResponseInfo::ConnectionInfoToString(
document_state->connection_info()).c_str()));
args.GetReturnValue().Set(load_times);
return;
}
}
args.GetReturnValue().SetNull();
}
static void GetCSI(const v8::FunctionCallbackInfo<v8::Value>& args) {
WebLocalFrame* frame = WebLocalFrame::frameForCurrentContext();
if (frame) {
WebDataSource* data_source = frame->dataSource();
if (data_source) {
DocumentState* document_state =
DocumentState::FromDataSource(data_source);
v8::Isolate* isolate = args.GetIsolate();
v8::Local<v8::Object> csi = v8::Object::New(isolate);
base::Time now = base::Time::Now();
base::Time start = document_state->request_time().is_null() ?
document_state->start_load_time() :
document_state->request_time();
base::Time onload = document_state->finish_document_load_time();
base::TimeDelta page = now - start;
csi->Set(v8::String::NewFromUtf8(isolate, "startE"),
v8::Number::New(isolate, floor(start.ToDoubleT() * 1000)));
csi->Set(v8::String::NewFromUtf8(isolate, "onloadT"),
v8::Number::New(isolate, floor(onload.ToDoubleT() * 1000)));
csi->Set(v8::String::NewFromUtf8(isolate, "pageT"),
v8::Number::New(isolate, page.InMillisecondsF()));
csi->Set(
v8::String::NewFromUtf8(isolate, "tran"),
v8::Number::New(
isolate, GetCSITransitionType(data_source->navigationType())));
args.GetReturnValue().Set(csi);
return;
}
}
args.GetReturnValue().SetNull();
return;
}
};
v8::Extension* LoadTimesExtension::Get() {
return new LoadTimesExtensionWrapper();
}
} // namespace extensions_v8
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