cef/libcef/browser/frame_host_impl.cc

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// 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/browser/frame_host_impl.h"
#include "include/cef_request.h"
#include "include/cef_stream.h"
#include "include/cef_v8.h"
#include "include/test/cef_test_helpers.h"
#include "libcef/browser/browser_host_impl.h"
#include "libcef/common/cef_messages.h"
namespace {
// Implementation of CommandResponseHandler for calling a CefStringVisitor.
class StringVisitHandler : public CefResponseManager::Handler {
public:
explicit StringVisitHandler(CefRefPtr<CefStringVisitor> visitor)
: visitor_(visitor) {}
void OnResponse(const Cef_Response_Params& params) override {
visitor_->Visit(params.response);
}
private:
CefRefPtr<CefStringVisitor> visitor_;
IMPLEMENT_REFCOUNTING(StringVisitHandler);
};
// Implementation of CommandResponseHandler for calling ViewText().
class ViewTextHandler : public CefResponseManager::Handler {
public:
explicit ViewTextHandler(CefRefPtr<CefFrameHostImpl> frame) : frame_(frame) {}
void OnResponse(const Cef_Response_Params& params) override {
CefRefPtr<CefBrowser> browser = frame_->GetBrowser();
if (browser.get()) {
static_cast<CefBrowserHostImpl*>(browser.get())
->ViewText(params.response);
}
}
private:
CefRefPtr<CefFrameHostImpl> frame_;
IMPLEMENT_REFCOUNTING(ViewTextHandler);
};
} // namespace
CefFrameHostImpl::CefFrameHostImpl(CefBrowserHostImpl* browser,
int64 frame_id,
bool is_main_frame,
const CefString& url,
const CefString& name,
int64 parent_frame_id)
: frame_id_(frame_id),
is_main_frame_(is_main_frame),
browser_(browser),
is_focused_(is_main_frame_), // The main frame always starts focused.
url_(url),
name_(name),
parent_frame_id_(parent_frame_id == kUnspecifiedFrameId
? kInvalidFrameId
: parent_frame_id) {}
CefFrameHostImpl::~CefFrameHostImpl() {}
bool CefFrameHostImpl::IsValid() {
base::AutoLock lock_scope(state_lock_);
return (browser_ != NULL);
}
void CefFrameHostImpl::Undo() {
SendCommand("Undo", NULL);
}
void CefFrameHostImpl::Redo() {
SendCommand("Redo", NULL);
}
void CefFrameHostImpl::Cut() {
SendCommand("Cut", NULL);
}
void CefFrameHostImpl::Copy() {
SendCommand("Copy", NULL);
}
void CefFrameHostImpl::Paste() {
SendCommand("Paste", NULL);
}
void CefFrameHostImpl::Delete() {
SendCommand("Delete", NULL);
}
void CefFrameHostImpl::SelectAll() {
SendCommand("SelectAll", NULL);
}
void CefFrameHostImpl::ViewSource() {
SendCommand("GetSource", new ViewTextHandler(this));
}
void CefFrameHostImpl::GetSource(CefRefPtr<CefStringVisitor> visitor) {
SendCommand("GetSource", new StringVisitHandler(visitor));
}
void CefFrameHostImpl::GetText(CefRefPtr<CefStringVisitor> visitor) {
SendCommand("GetText", new StringVisitHandler(visitor));
}
void CefFrameHostImpl::LoadRequest(CefRefPtr<CefRequest> request) {
CefRefPtr<CefBrowserHostImpl> browser;
int64 frame_id;
{
base::AutoLock lock_scope(state_lock_);
browser = browser_;
frame_id = (is_main_frame_ ? kMainFrameId : frame_id_);
}
if (browser.get() && frame_id != kInvalidFrameId)
browser->LoadRequest(frame_id, request);
}
void CefFrameHostImpl::LoadURL(const CefString& url) {
CefRefPtr<CefBrowserHostImpl> browser;
int64 frame_id;
{
base::AutoLock lock_scope(state_lock_);
browser = browser_;
frame_id = (is_main_frame_ ? kMainFrameId : frame_id_);
}
if (browser.get() && frame_id != kInvalidFrameId) {
browser->LoadURL(frame_id, url, content::Referrer(),
ui::PAGE_TRANSITION_TYPED, std::string());
}
}
void CefFrameHostImpl::LoadString(const CefString& string,
const CefString& url) {
CefRefPtr<CefBrowserHostImpl> browser;
int64 frame_id;
{
base::AutoLock lock_scope(state_lock_);
browser = browser_;
frame_id = (is_main_frame_ ? kMainFrameId : frame_id_);
}
if (browser.get() && frame_id != kInvalidFrameId)
browser->LoadString(frame_id, string, url);
}
void CefFrameHostImpl::ExecuteJavaScript(const CefString& jsCode,
const CefString& scriptUrl,
int startLine) {
SendJavaScript(jsCode, scriptUrl, startLine);
}
bool CefFrameHostImpl::IsMain() {
return is_main_frame_;
}
bool CefFrameHostImpl::IsFocused() {
base::AutoLock lock_scope(state_lock_);
return is_focused_;
}
CefString CefFrameHostImpl::GetName() {
base::AutoLock lock_scope(state_lock_);
return name_;
}
int64 CefFrameHostImpl::GetIdentifier() {
return frame_id_;
}
CefRefPtr<CefFrame> CefFrameHostImpl::GetParent() {
CefRefPtr<CefBrowserHostImpl> browser;
int64 parent_frame_id;
{
base::AutoLock lock_scope(state_lock_);
if (is_main_frame_ || parent_frame_id_ == kInvalidFrameId)
return NULL;
browser = browser_;
parent_frame_id = parent_frame_id_;
}
if (browser.get())
return browser->GetFrame(parent_frame_id);
return NULL;
}
CefString CefFrameHostImpl::GetURL() {
base::AutoLock lock_scope(state_lock_);
return url_;
}
CefRefPtr<CefBrowser> CefFrameHostImpl::GetBrowser() {
base::AutoLock lock_scope(state_lock_);
return browser_;
}
void CefFrameHostImpl::SetFocused(bool focused) {
base::AutoLock lock_scope(state_lock_);
is_focused_ = focused;
}
void CefFrameHostImpl::SetAttributes(const CefString& url,
const CefString& name,
int64 parent_frame_id) {
base::AutoLock lock_scope(state_lock_);
if (!url.empty() && url != url_)
url_ = url;
if (!name.empty() && name != name_)
name_ = name;
if (parent_frame_id != kUnspecifiedFrameId)
parent_frame_id_ = parent_frame_id;
}
CefRefPtr<CefV8Context> CefFrameHostImpl::GetV8Context() {
NOTREACHED() << "GetV8Context cannot be called from the browser process";
return NULL;
}
void CefFrameHostImpl::VisitDOM(CefRefPtr<CefDOMVisitor> visitor) {
NOTREACHED() << "VisitDOM cannot be called from the browser process";
}
void CefFrameHostImpl::SendJavaScript(const std::string& jsCode,
const std::string& scriptUrl,
int startLine) {
if (jsCode.empty())
return;
if (startLine <= 0) {
// A value of 0 is v8::Message::kNoLineNumberInfo in V8. There is code in
// V8 that will assert on that value (e.g. V8StackTraceImpl::Frame::Frame
// if a JS exception is thrown) so make sure |startLine| > 0.
startLine = 1;
}
CefRefPtr<CefBrowserHostImpl> browser;
int64 frame_id;
{
base::AutoLock lock_scope(state_lock_);
browser = browser_;
frame_id = (is_main_frame_ ? kMainFrameId : frame_id_);
}
if (browser.get() && frame_id != kInvalidFrameId)
browser->SendCode(frame_id, true, jsCode, scriptUrl, startLine, NULL);
}
void CefFrameHostImpl::ExecuteJavaScriptWithUserGestureForTests(
const CefString& javascript) {
CefRefPtr<CefBrowserHostImpl> browser;
int64 frame_id;
{
base::AutoLock lock_scope(state_lock_);
browser = browser_;
frame_id = (is_main_frame_ ? kMainFrameId : frame_id_);
}
if (browser.get() && frame_id != kInvalidFrameId)
browser->ExecuteJavaScriptWithUserGestureForTests(frame_id, javascript);
}
void CefFrameHostImpl::Detach() {
base::AutoLock lock_scope(state_lock_);
browser_ = NULL;
}
void CefFrameHostImpl::SendCommand(
const std::string& command,
CefRefPtr<CefResponseManager::Handler> responseHandler) {
CefRefPtr<CefBrowserHostImpl> browser;
int64 frame_id;
{
base::AutoLock lock_scope(state_lock_);
browser = browser_;
// Commands can only be sent to known frame ids.
frame_id = frame_id_;
}
if (browser.get() && frame_id != kInvalidFrameId)
browser->SendCommand(frame_id, command, responseHandler);
}
void CefExecuteJavaScriptWithUserGestureForTests(CefRefPtr<CefFrame> frame,
const CefString& javascript) {
CefFrameHostImpl* impl = static_cast<CefFrameHostImpl*>(frame.get());
impl->ExecuteJavaScriptWithUserGestureForTests(javascript);
}