cef/libcef/renderer/chrome_bindings.cc
Marshall Greenblatt e1f2be1785 - Expose tracing functionality via new cef_trace.h and cef_trace_event.h headers (issue #711).
- Add about:tracing UI support (issue #711).
- Avoid unnecessary string type conversions for values and process messages.
- Add support for a 'note' attribute in patch.cfg.

git-svn-id: https://chromiumembedded.googlecode.com/svn/trunk@865 5089003a-bbd8-11dd-ad1f-f1f9622dbc98
2012-10-17 22:45:49 +00:00

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3.6 KiB
C++

// Copyright (c) 2012 The Chromium Embedded Framework 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 "libcef/renderer/chrome_bindings.h"
#include "libcef/renderer/browser_impl.h"
#include <string>
#include "base/logging.h"
#include "base/values.h"
namespace scheme {
namespace {
void SetList(CefRefPtr<CefV8Value> source, base::ListValue* target);
// Transfer a V8 value to a List index.
void SetListValue(base::ListValue* list, int index,
CefRefPtr<CefV8Value> value) {
if (value->IsArray()) {
base::ListValue* new_list = new base::ListValue();
SetList(value, new_list);
list->Set(index, new_list);
} else if (value->IsString()) {
list->Set(index,
base::Value::CreateStringValue(value->GetStringValue().ToString()));
} else if (value->IsBool()) {
list->Set(index, base::Value::CreateBooleanValue(value->GetBoolValue()));
} else if (value->IsInt()) {
list->Set(index, base::Value::CreateIntegerValue(value->GetIntValue()));
} else if (value->IsDouble()) {
list->Set(index, base::Value::CreateDoubleValue(value->GetDoubleValue()));
}
}
// Transfer a V8 array to a List.
void SetList(CefRefPtr<CefV8Value> source, base::ListValue* target) {
DCHECK(source->IsArray());
int arg_length = source->GetArrayLength();
if (arg_length == 0)
return;
for (int i = 0; i < arg_length; ++i)
SetListValue(target, i, source->GetValue(i));
}
class V8Handler : public CefV8Handler {
public:
V8Handler() {}
virtual bool Execute(const CefString& name,
CefRefPtr<CefV8Value> object,
const CefV8ValueList& arguments,
CefRefPtr<CefV8Value>& retval,
CefString& exception) OVERRIDE {
std::string nameStr = name;
if (nameStr == "send") {
if (arguments.size() > 0 && arguments.size() <= 2 &&
arguments[0]->IsString()) {
base::ListValue args;
SetListValue(&args, 0, arguments[0]);
if (arguments.size() > 1)
SetListValue(&args, 1, arguments[1]);
CefRefPtr<CefBrowserImpl> browser = static_cast<CefBrowserImpl*>(
CefV8Context::GetCurrentContext()->GetBrowser().get());
browser->SendProcessMessage(PID_BROWSER, kChromeProcessMessage, &args,
false);
retval = CefV8Value::CreateBool(true);
} else {
exception = "Invalid number of arguments or argument format";
}
return true;
} else if (nameStr == "bind") {
// Return the "send" object.
DCHECK(object->GetFunctionName() == "send");
retval = object;
return true;
}
NOTREACHED();
return false;
}
IMPLEMENT_REFCOUNTING(V8Handler);
};
} // namespace
void OnContextCreated(CefRefPtr<CefBrowserImpl> browser,
CefRefPtr<CefFrameImpl> frame,
CefRefPtr<CefV8Context> context) {
GURL url = GURL(frame->GetURL().ToString());
if (url.scheme() != kChromeScheme)
return;
CefRefPtr<CefV8Value> global = context->GetGlobal();
CefRefPtr<CefV8Handler> handler = new V8Handler();
// Add "chrome".
CefRefPtr<CefV8Value> chrome = CefV8Value::CreateObject(NULL);
global->SetValue("chrome", chrome, V8_PROPERTY_ATTRIBUTE_NONE);
// Add "chrome.send".
CefRefPtr<CefV8Value> send = CefV8Value::CreateFunction("send", handler);
chrome->SetValue("send", send, V8_PROPERTY_ATTRIBUTE_NONE);
// Add "chrome.send.bind".
CefRefPtr<CefV8Value> bind = CefV8Value::CreateFunction("bind", handler);
send->SetValue("bind", bind, V8_PROPERTY_ATTRIBUTE_NONE);
}
} // namespace scheme