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cef/libcef/browser_impl.cc

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// Copyright (c) 2008-2009 The Chromium Embedded Framework Authors.
// Portions copyright (c) 2006-2008 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 "cef_context.h"
#include "browser_impl.h"
#include "browser_webkit_glue.h"
#include "request_impl.h"
#include "stream_impl.h"
#include "base/utf_string_conversions.h"
#include "base/waitable_event.h"
#include "third_party/WebKit/WebKit/chromium/public/WebDocument.h"
#include "third_party/WebKit/WebKit/chromium/public/WebFrame.h"
#include "third_party/WebKit/WebKit/chromium/public/WebHTTPBody.h"
#include "third_party/WebKit/WebKit/chromium/public/WebPlugin.h"
#include "third_party/WebKit/WebKit/chromium/public/WebPluginDocument.h"
#include "third_party/WebKit/WebKit/chromium/public/WebRange.h"
#include "third_party/WebKit/WebKit/chromium/public/WebRect.h"
#include "third_party/WebKit/WebKit/chromium/public/WebScriptSource.h"
#include "third_party/WebKit/WebKit/chromium/public/WebString.h"
#include "third_party/WebKit/WebKit/chromium/public/WebURL.h"
#include "third_party/WebKit/WebKit/chromium/public/WebURLRequest.h"
#include "third_party/WebKit/WebKit/chromium/public/WebView.h"
#include "webkit/glue/glue_serialize.h"
#include "webkit/glue/plugins/webplugin_delegate.h"
#include "webkit/glue/plugins/webplugin_impl.h"
#include "webkit/glue/webkit_glue.h"
using WebKit::WebDocument;
using WebKit::WebFrame;
using WebKit::WebHTTPBody;
using WebKit::WebPlugin;
using WebKit::WebPluginDocument;
using WebKit::WebRange;
using WebKit::WebRect;
using WebKit::WebScriptSource;
using WebKit::WebString;
using WebKit::WebURL;
using WebKit::WebURLRequest;
using WebKit::WebView;
using webkit_glue::StdStringToWebString;
using webkit_glue::StdWStringToWebString;
using webkit_glue::WebStringToStdString;
using webkit_glue::WebStringToStdWString;
CefBrowserImpl::CefBrowserImpl(CefWindowInfo& windowInfo, bool popup,
CefRefPtr<CefHandler> handler)
: window_info_(windowInfo), is_popup_(popup), is_modal_(false),
handler_(handler), webviewhost_(NULL), popuphost_(NULL),
frame_main_(NULL), unique_id_(0)
{
delegate_.reset(new BrowserWebViewDelegate(this));
popup_delegate_.reset(new BrowserWebViewDelegate(this));
nav_controller_.reset(new BrowserNavigationController(this));
if (!file_system_root_.CreateUniqueTempDir()) {
LOG(WARNING) << "Failed to create a temp dir for the filesystem."
"FileSystem feature will be disabled.";
DCHECK(file_system_root_.path().empty());
}
}
bool CefBrowserImpl::CanGoBack()
{
if(!CefThread::CurrentlyOn(CefThread::UI))
{
// We need to send the request to the UI thread and wait for the result
// Event that will be used to signal that data is available. Start
// in non-signaled mode so that the event will block.
base::WaitableEvent event(false, false);
bool retVal = true;
// Request the data from the UI thread
CefThread::PostTask(CefThread::UI, FROM_HERE, NewRunnableMethod(this,
&CefBrowserImpl::UIT_CanGoBackNotify, &retVal, &event));
// Wait for the UI thread callback to tell us that the data is available
event.Wait();
return retVal;
}
else
{
// Call the method directly
return UIT_CanGoBack();
}
}
void CefBrowserImpl::GoBack()
{
CefThread::PostTask(CefThread::UI, FROM_HERE, NewRunnableMethod(this,
&CefBrowserImpl::UIT_HandleActionView, MENU_ID_NAV_BACK));
}
bool CefBrowserImpl::CanGoForward()
{
if(!CefThread::CurrentlyOn(CefThread::UI))
{
// We need to send the request to the UI thread and wait for the result
// Event that will be used to signal that data is available. Start
// in non-signaled mode so that the event will block.
base::WaitableEvent event(false, false);
bool retVal = true;
// Request the data from the UI thread
CefThread::PostTask(CefThread::UI, FROM_HERE, NewRunnableMethod(this,
&CefBrowserImpl::UIT_CanGoForwardNotify, &retVal, &event));
// Wait for the UI thread callback to tell us that the data is available
event.Wait();
return retVal;
}
else
{
// Call the method directly
return UIT_CanGoForward();
}
}
void CefBrowserImpl::GoForward()
{
CefThread::PostTask(CefThread::UI, FROM_HERE, NewRunnableMethod(this,
&CefBrowserImpl::UIT_HandleActionView, MENU_ID_NAV_FORWARD));
}
void CefBrowserImpl::Reload()
{
CefThread::PostTask(CefThread::UI, FROM_HERE, NewRunnableMethod(this,
&CefBrowserImpl::UIT_HandleActionView, MENU_ID_NAV_RELOAD));
}
void CefBrowserImpl::ReloadIgnoreCache()
{
CefThread::PostTask(CefThread::UI, FROM_HERE, NewRunnableMethod(this,
&CefBrowserImpl::UIT_HandleActionView, MENU_ID_NAV_RELOAD_NOCACHE));
}
void CefBrowserImpl::StopLoad()
{
CefThread::PostTask(CefThread::UI, FROM_HERE, NewRunnableMethod(this,
&CefBrowserImpl::UIT_HandleActionView, MENU_ID_NAV_STOP));
}
void CefBrowserImpl::SetFocus(bool enable)
{
if (CefThread::CurrentlyOn(CefThread::UI))
{
UIT_SetFocus(GetWebViewHost(), enable);
}
else
{
CefThread::PostTask(CefThread::UI, FROM_HERE, NewRunnableMethod(this,
&CefBrowserImpl::UIT_SetFocus, GetWebViewHost(), enable));
}
}
bool CefBrowserImpl::IsPopup()
{
Lock();
bool popup = is_popup_;
Unlock();
return popup;
}
CefRefPtr<CefHandler> CefBrowserImpl::GetHandler()
{
return handler_;
}
CefRefPtr<CefFrame> CefBrowserImpl::GetMainFrame()
{
return GetWebView() ? GetCefFrame(GetWebView()->mainFrame()) : NULL;
}
CefRefPtr<CefFrame> CefBrowserImpl::GetFocusedFrame()
{
return GetWebView() ? GetCefFrame(GetWebView()->focusedFrame()) : NULL;
}
CefRefPtr<CefFrame> CefBrowserImpl::GetFrame(const std::wstring& name)
{
WebView* view = GetWebView();
if (!view)
return NULL;
WebFrame* frame = view->findFrameByName(StdWStringToWebString(name));
if(frame)
return GetCefFrame(frame);
return NULL;
}
void CefBrowserImpl::GetFrameNames(std::vector<std::wstring>& names)
{
WebView* view = GetWebView();
if (!view)
return;
WebFrame* main_frame = view->mainFrame();
WebFrame* it = main_frame;
do {
if(it != main_frame)
names.push_back(UTF16ToWideHack(it->name()));
it = it->traverseNext(true);
} while (it != main_frame);
}
void CefBrowserImpl::Find(int identifier, const std::wstring& searchText,
bool forward, bool matchCase, bool findNext)
{
WebKit::WebFindOptions options;
options.forward = forward;
options.matchCase = matchCase;
options.findNext = findNext;
// Execute the request on the UI thread.
CefThread::PostTask(CefThread::UI, FROM_HERE, NewRunnableMethod(this,
&CefBrowserImpl::UIT_Find, identifier, searchText, options));
}
void CefBrowserImpl::StopFinding(bool clearSelection)
{
// Execute the request on the UI thread.
CefThread::PostTask(CefThread::UI, FROM_HERE, NewRunnableMethod(this,
&CefBrowserImpl::UIT_StopFinding, clearSelection));
}
CefRefPtr<CefFrame> CefBrowserImpl::GetCefFrame(WebFrame* frame)
{
CefRefPtr<CefFrame> cef_frame;
Lock();
WebView *view = GetWebView();
if(view) {
if(frame == view->mainFrame()) {
// Use or create the single main frame reference.
if(frame_main_ == NULL)
frame_main_ = new CefFrameImpl(this, std::wstring());
cef_frame = frame_main_;
} else {
// Locate or create the appropriate named reference.
std::wstring name = UTF16ToWideHack(frame->name());
DCHECK(!name.empty());
FrameMap::const_iterator it = frames_.find(name);
if(it != frames_.end())
cef_frame = it->second;
else {
cef_frame = new CefFrameImpl(this, name);
frames_.insert(std::make_pair(name, cef_frame.get()));
}
}
}
Unlock();
return cef_frame;
}
void CefBrowserImpl::RemoveCefFrame(const std::wstring& name)
{
Lock();
if(name.empty())
frame_main_ = NULL;
else {
FrameMap::iterator it = frames_.find(name);
if(it != frames_.end())
frames_.erase(it);
}
Unlock();
}
WebFrame* CefBrowserImpl::GetWebFrame(CefRefPtr<CefFrame> frame)
{
WebView* view = GetWebView();
if (!view)
return NULL;
std::wstring name = frame->GetName();
if(name.empty())
return view ->mainFrame();
return view ->findFrameByName(StdWStringToWebString(name));
}
void CefBrowserImpl::Undo(CefRefPtr<CefFrame> frame)
{
frame->AddRef();
CefThread::PostTask(CefThread::UI, FROM_HERE, NewRunnableMethod(this,
&CefBrowserImpl::UIT_HandleAction, MENU_ID_UNDO, frame.get()));
}
void CefBrowserImpl::Redo(CefRefPtr<CefFrame> frame)
{
frame->AddRef();
CefThread::PostTask(CefThread::UI, FROM_HERE, NewRunnableMethod(this,
&CefBrowserImpl::UIT_HandleAction, MENU_ID_REDO, frame.get()));
}
void CefBrowserImpl::Cut(CefRefPtr<CefFrame> frame)
{
frame->AddRef();
CefThread::PostTask(CefThread::UI, FROM_HERE, NewRunnableMethod(this,
&CefBrowserImpl::UIT_HandleAction, MENU_ID_CUT, frame.get()));
}
void CefBrowserImpl::Copy(CefRefPtr<CefFrame> frame)
{
frame->AddRef();
CefThread::PostTask(CefThread::UI, FROM_HERE, NewRunnableMethod(this,
&CefBrowserImpl::UIT_HandleAction, MENU_ID_COPY, frame.get()));
}
void CefBrowserImpl::Paste(CefRefPtr<CefFrame> frame)
{
frame->AddRef();
CefThread::PostTask(CefThread::UI, FROM_HERE, NewRunnableMethod(this,
&CefBrowserImpl::UIT_HandleAction, MENU_ID_PASTE, frame.get()));
}
void CefBrowserImpl::Delete(CefRefPtr<CefFrame> frame)
{
frame->AddRef();
CefThread::PostTask(CefThread::UI, FROM_HERE, NewRunnableMethod(this,
&CefBrowserImpl::UIT_HandleAction, MENU_ID_DELETE, frame.get()));
}
void CefBrowserImpl::SelectAll(CefRefPtr<CefFrame> frame)
{
frame->AddRef();
CefThread::PostTask(CefThread::UI, FROM_HERE, NewRunnableMethod(this,
&CefBrowserImpl::UIT_HandleAction, MENU_ID_SELECTALL, frame.get()));
}
void CefBrowserImpl::Print(CefRefPtr<CefFrame> frame)
{
frame->AddRef();
CefThread::PostTask(CefThread::UI, FROM_HERE, NewRunnableMethod(this,
&CefBrowserImpl::UIT_HandleAction, MENU_ID_PRINT, frame.get()));
}
void CefBrowserImpl::ViewSource(CefRefPtr<CefFrame> frame)
{
frame->AddRef();
CefThread::PostTask(CefThread::UI, FROM_HERE, NewRunnableMethod(this,
&CefBrowserImpl::UIT_HandleAction, MENU_ID_VIEWSOURCE, frame.get()));
}
std::wstring CefBrowserImpl::GetSource(CefRefPtr<CefFrame> frame)
{
if(!CefThread::CurrentlyOn(CefThread::UI))
{
// We need to send the request to the UI thread and wait for the result
// Event that will be used to signal that data is available. Start
// in non-signaled mode so that the event will block.
base::WaitableEvent event(false, false);
CefRefPtr<CefStreamWriter> stream(new CefBytesWriter(BUFFER_SIZE));
// Request the data from the UI thread
frame->AddRef();
stream->AddRef();
CefThread::PostTask(CefThread::UI, FROM_HERE, NewRunnableMethod(this,
&CefBrowserImpl::UIT_GetDocumentStringNotify, frame.get(), stream.get(),
&event));
// Wait for the UI thread callback to tell us that the data is available
event.Wait();
return UTF8ToWide(
static_cast<CefBytesWriter*>(stream.get())->GetDataString());
}
else
{
// Retrieve the document string directly
WebKit::WebFrame* web_frame = GetWebFrame(frame);
if(web_frame) {
std::string markup = web_frame->contentAsMarkup().utf8();
return UTF8ToWide(markup);
}
return std::wstring();
}
}
std::wstring CefBrowserImpl::GetText(CefRefPtr<CefFrame> frame)
{
if(!CefThread::CurrentlyOn(CefThread::UI))
{
// We need to send the request to the UI thread and wait for the result
// Event that will be used to signal that data is available. Start
// in non-signaled mode so that the event will block.
base::WaitableEvent event(false, false);
CefRefPtr<CefStreamWriter> stream(new CefBytesWriter(BUFFER_SIZE));
// Request the data from the UI thread
frame->AddRef();
stream->AddRef();
CefThread::PostTask(CefThread::UI, FROM_HERE, NewRunnableMethod(this,
&CefBrowserImpl::UIT_GetDocumentTextNotify, frame.get(), stream.get(),
&event));
// Wait for the UI thread callback to tell us that the data is available
event.Wait();
return UTF8ToWide(
static_cast<CefBytesWriter*>(stream.get())->GetDataString());
}
else
{
// Retrieve the document text directly
WebKit::WebFrame* web_frame = GetWebFrame(frame);
if(web_frame)
return webkit_glue::DumpDocumentText(web_frame);
return std::wstring();
}
}
void CefBrowserImpl::LoadRequest(CefRefPtr<CefFrame> frame,
CefRefPtr<CefRequest> request)
{
DCHECK(request.get() != NULL);
frame->AddRef();
request->AddRef();
CefThread::PostTask(CefThread::UI, FROM_HERE, NewRunnableMethod(this,
&CefBrowserImpl::UIT_LoadURLForRequestRef, frame.get(), request.get()));
}
void CefBrowserImpl::LoadURL(CefRefPtr<CefFrame> frame,
const std::wstring& url)
{
frame->AddRef();
CefThread::PostTask(CefThread::UI, FROM_HERE, NewRunnableMethod(this,
&CefBrowserImpl::UIT_LoadURL, frame.get(), url));
}
void CefBrowserImpl::LoadString(CefRefPtr<CefFrame> frame,
const std::wstring& string,
const std::wstring& url)
{
frame->AddRef();
CefThread::PostTask(CefThread::UI, FROM_HERE, NewRunnableMethod(this,
&CefBrowserImpl::UIT_LoadHTML, frame.get(), string, url));
}
void CefBrowserImpl::LoadStream(CefRefPtr<CefFrame> frame,
CefRefPtr<CefStreamReader> stream,
const std::wstring& url)
{
DCHECK(stream.get() != NULL);
frame->AddRef();
stream->AddRef();
CefThread::PostTask(CefThread::UI, FROM_HERE, NewRunnableMethod(this,
&CefBrowserImpl::UIT_LoadHTMLForStreamRef, frame.get(), stream.get(),
url));
}
void CefBrowserImpl::ExecuteJavaScript(CefRefPtr<CefFrame> frame,
const std::wstring& jsCode,
const std::wstring& scriptUrl,
int startLine)
{
frame->AddRef();
CefThread::PostTask(CefThread::UI, FROM_HERE, NewRunnableMethod(this,
&CefBrowserImpl::UIT_ExecuteJavaScript, frame.get(), jsCode, scriptUrl,
startLine));
}
std::wstring CefBrowserImpl::GetURL(CefRefPtr<CefFrame> frame)
{
WebFrame* web_frame = GetWebFrame(frame);
if(web_frame) {
std::string spec = web_frame->url().spec();
return UTF8ToWide(spec);
}
return std::wstring();
}
bool CefBrowser::CreateBrowser(CefWindowInfo& windowInfo, bool popup,
CefRefPtr<CefHandler> handler,
const std::wstring& url)
{
if(!_Context.get())
return false;
std::wstring newUrl = url;
if(handler.get())
{
// Give the handler an opportunity to modify window attributes, handler,
// or cancel the window creation.
CefHandler::RetVal rv =
handler->HandleBeforeCreated(NULL, windowInfo, popup, handler, newUrl);
if(rv == RV_HANDLED)
return false;
}
CefRefPtr<CefBrowserImpl> browser(
new CefBrowserImpl(windowInfo, popup, handler));
CefThread::PostTask(CefThread::UI, FROM_HERE, NewRunnableMethod(browser.get(),
&CefBrowserImpl::UIT_CreateBrowser, newUrl));
return true;
}
CefRefPtr<CefBrowser> CefBrowser::CreateBrowserSync(CefWindowInfo& windowInfo,
bool popup,
CefRefPtr<CefHandler> handler,
const std::wstring& url)
{
if(!_Context.get() || !CefThread::CurrentlyOn(CefThread::UI))
return NULL;
std::wstring newUrl = url;
CefRefPtr<CefBrowser> alternateBrowser;
if(handler.get())
{
// Give the handler an opportunity to modify window attributes, handler,
// or cancel the window creation.
CefHandler::RetVal rv = handler->HandleBeforeCreated(NULL, windowInfo,
popup, handler, newUrl);
if(rv == RV_HANDLED)
return false;
}
CefRefPtr<CefBrowser> browser(new CefBrowserImpl(windowInfo, popup, handler));
static_cast<CefBrowserImpl*>(browser.get())->UIT_CreateBrowser(newUrl);
return browser;
}
void CefBrowserImpl::UIT_LoadURL(CefFrame* frame,
const std::wstring& url)
{
UIT_LoadURLForRequest(frame, url, std::wstring(), WebHTTPBody(),
CefRequest::HeaderMap());
}
void CefBrowserImpl::UIT_LoadURLForRequestRef(CefFrame* frame,
CefRequest* request)
{
std::wstring url = request->GetURL();
std::wstring method = request->GetMethod();
CefRequestImpl *impl = static_cast<CefRequestImpl*>(request);
WebHTTPBody upload_data;
CefRefPtr<CefPostData> postdata = impl->GetPostData();
if(postdata.get()) {
upload_data.initialize();
static_cast<CefPostDataImpl*>(postdata.get())->Get(upload_data);
}
CefRequest::HeaderMap headers;
impl->GetHeaderMap(headers);
UIT_LoadURLForRequest(frame, url, method, upload_data, headers);
request->Release();
}
void CefBrowserImpl::UIT_LoadURLForRequest(CefFrame* frame,
const std::wstring& url,
const std::wstring& method,
const WebKit::WebHTTPBody& upload_data,
const CefRequest::HeaderMap& headers)
{
REQUIRE_UIT();
if (url.empty())
return;
GURL gurl(StdWStringToWebString(url));
if (!gurl.is_valid() && !gurl.has_scheme()) {
// Try to add "http://" at the beginning
std::wstring new_url = std::wstring(L"http://") + url;
gurl = GURL(StdWStringToWebString(new_url));
if (!gurl.is_valid())
return;
}
nav_controller_->LoadEntry(
new BrowserNavigationEntry(-1, gurl, std::wstring(), frame->GetName(),
method, upload_data, headers));
frame->Release();
}
void CefBrowserImpl::UIT_LoadHTML(CefFrame* frame,
const std::wstring& html,
const std::wstring& url)
{
REQUIRE_UIT();
GURL gurl(StdWStringToWebString(url));
if (!gurl.is_valid() && !gurl.has_scheme()) {
// Try to add "http://" at the beginning
std::wstring new_url = std::wstring(L"http://") + url;
gurl = GURL(StdWStringToWebString(new_url));
if (!gurl.is_valid())
return;
}
WebFrame* web_frame = GetWebFrame(frame);
if(web_frame)
web_frame->loadHTMLString(WideToUTF8(html), gurl);
frame->Release();
}
void CefBrowserImpl::UIT_LoadHTMLForStreamRef(CefFrame* frame,
CefStreamReader* stream,
const std::wstring& url)
{
REQUIRE_UIT();
GURL gurl(StdWStringToWebString(url));
if (!gurl.is_valid() && !gurl.has_scheme()) {
// Try to add "http://" at the beginning
std::wstring new_url = std::wstring(L"http://") + url;
gurl = GURL(StdWStringToWebString(new_url));
if (!gurl.is_valid())
return;
}
// read all of the stream data into a std::string.
std::stringstream ss;
char buff[BUFFER_SIZE];
size_t read;
do {
read = stream->Read(buff, sizeof(char), BUFFER_SIZE-1);
if(read > 0) {
buff[read] = 0;
ss << buff;
}
}
while(read > 0);
WebFrame* web_frame = GetWebFrame(frame);
if(web_frame)
web_frame->loadHTMLString(ss.str(), gurl);
stream->Release();
frame->Release();
}
void CefBrowserImpl::UIT_ExecuteJavaScript(CefFrame* frame,
const std::wstring& js_code,
const std::wstring& script_url,
int start_line)
{
REQUIRE_UIT();
WebFrame* web_frame = GetWebFrame(frame);
if(web_frame) {
web_frame->executeScript(
WebScriptSource(StdWStringToWebString(js_code),
WebURL(GURL(StdWStringToWebString(script_url))),
start_line));
}
frame->Release();
}
void CefBrowserImpl::UIT_GoBackOrForward(int offset)
{
REQUIRE_UIT();
nav_controller_->GoToOffset(offset);
}
void CefBrowserImpl::UIT_Reload(bool ignoreCache)
{
REQUIRE_UIT();
nav_controller_->Reload(ignoreCache);
}
bool CefBrowserImpl::UIT_Navigate(const BrowserNavigationEntry& entry,
bool reload,
bool ignoreCache)
{
REQUIRE_UIT();
WebView* view = GetWebView();
if (!view)
return false;
// Get the right target frame for the entry.
WebFrame* frame;
if (!entry.GetTargetFrame().empty()) {
frame = view->findFrameByName(
StdWStringToWebString(entry.GetTargetFrame()));
} else {
frame = view->mainFrame();
}
// TODO(mpcomplete): should we clear the target frame, or should
// back/forward navigations maintain the target frame?
// A navigation resulting from loading a javascript URL should not be
// treated as a browser initiated event. Instead, we want it to look as if
// the page initiated any load resulting from JS execution.
if (!entry.GetURL().SchemeIs("javascript")) {
delegate_->set_pending_extra_data(
new BrowserExtraData(entry.GetPageID()));
}
// If we are reloading, then WebKit will use the state of the current page.
// Otherwise, we give it the state to navigate to.
if (reload) {
frame->reload(ignoreCache);
} else if (!entry.GetContentState().empty()) {
DCHECK(entry.GetPageID() != -1);
frame->loadHistoryItem(
webkit_glue::HistoryItemFromString(entry.GetContentState()));
} else {
DCHECK(entry.GetPageID() == -1);
WebURLRequest request(entry.GetURL());
if(entry.GetMethod().size() > 0)
request.setHTTPMethod(StdWStringToWebString(entry.GetMethod()));
if(entry.GetHeaders().size() > 0)
CefRequestImpl::SetHeaderMap(entry.GetHeaders(), request);
if(!entry.GetUploadData().isNull())
{
std::string method = WebStringToStdString(request.httpMethod());
if(method == "GET" || method == "HEAD") {
request.setHTTPMethod(StdStringToWebString("POST"));
}
if(request.httpHeaderField(StdStringToWebString("Content-Type")).length()
== 0) {
request.setHTTPHeaderField(
StdStringToWebString("Content-Type"),
StdStringToWebString("application/x-www-form-urlencoded"));
}
request.setHTTPBody(entry.GetUploadData());
}
frame->loadRequest(request);
}
// In case LoadRequest failed before DidCreateDataSource was called.
delegate_->set_pending_extra_data(NULL);
if (handler_.get() && handler_->HandleSetFocus(this, false) == RV_CONTINUE) {
// Restore focus to the main frame prior to loading new request.
// This makes sure that we don't have a focused iframe. Otherwise, that
// iframe would keep focus when the SetFocus called immediately after
// LoadRequest, thus making some tests fail (see http://b/issue?id=845337
// for more details).
// TODO(cef): The above comment may be wrong, or the below call to
// setFocusedFrame() may be unnecessary or in the wrong place. See this
// thread for additional details:
// http://groups.google.com/group/chromium-dev/browse_thread/thread/42bcd31b59e3a168
view->setFocusedFrame(frame);
UIT_SetFocus(GetWebViewHost(), true);
}
return true;
}
CefRefPtr<CefBrowserImpl> CefBrowserImpl::UIT_CreatePopupWindow(const std::wstring& url)
{
REQUIRE_UIT();
CefWindowInfo info;
#if defined(OS_WIN)
info.SetAsPopup(NULL, url.c_str());
#endif
CefRefPtr<CefHandler> handler = handler_;
std::wstring newUrl = url;
if(handler_.get())
{
// Give the handler an opportunity to modify window attributes, handler,
// or cancel the window creation.
CefHandler::RetVal rv =
handler_->HandleBeforeCreated(this, info, true, handler, newUrl);
if(rv == RV_HANDLED)
return NULL;
}
CefRefPtr<CefBrowserImpl> browser(new CefBrowserImpl(info, true, handler));
browser->UIT_CreateBrowser(newUrl);
return browser;
}
void CefBrowserImpl::UIT_Show(WebKit::WebNavigationPolicy policy)
{
REQUIRE_UIT();
delegate_->show(policy);
}
void CefBrowserImpl::UIT_HandleActionView(CefHandler::MenuId menuId)
{
return UIT_HandleAction(menuId, NULL);
}
void CefBrowserImpl::UIT_HandleAction(CefHandler::MenuId menuId,
CefFrame* frame)
{
REQUIRE_UIT();
WebFrame* web_frame = NULL;
if(frame)
web_frame = GetWebFrame(frame);
switch(menuId)
{
case MENU_ID_NAV_BACK:
UIT_GoBackOrForward(-1);
break;
case MENU_ID_NAV_FORWARD:
UIT_GoBackOrForward(1);
break;
case MENU_ID_NAV_RELOAD:
UIT_Reload(false);
break;
case MENU_ID_NAV_RELOAD_NOCACHE:
UIT_Reload(true);
break;
case MENU_ID_NAV_STOP:
if (GetWebView())
GetWebView()->mainFrame()->stopLoading();
break;
case MENU_ID_UNDO:
if(web_frame)
web_frame->executeCommand(WebString::fromUTF8("Undo"));
break;
case MENU_ID_REDO:
if(web_frame)
web_frame->executeCommand(WebString::fromUTF8("Redo"));
break;
case MENU_ID_CUT:
if(web_frame)
web_frame->executeCommand(WebString::fromUTF8("Cut"));
break;
case MENU_ID_COPY:
if(web_frame)
web_frame->executeCommand(WebString::fromUTF8("Copy"));
break;
case MENU_ID_PASTE:
if(web_frame)
web_frame->executeCommand(WebString::fromUTF8("Paste"));
break;
case MENU_ID_DELETE:
if(web_frame)
web_frame->executeCommand(WebString::fromUTF8("Delete"));
break;
case MENU_ID_SELECTALL:
if(web_frame)
web_frame->executeCommand(WebString::fromUTF8("SelectAll"));
break;
case MENU_ID_PRINT:
if(web_frame)
UIT_PrintPages(web_frame);
break;
case MENU_ID_VIEWSOURCE:
if(web_frame)
UIT_ViewDocumentString(web_frame);
break;
}
if(frame)
frame->Release();
}
void CefBrowserImpl::UIT_GetDocumentStringNotify(CefFrame* frame,
CefStreamWriter* writer,
base::WaitableEvent* event)
{
REQUIRE_UIT();
WebKit::WebFrame* web_frame = GetWebFrame(frame);
if(web_frame) {
// Retrieve the document string
std::string markup = web_frame->contentAsMarkup().utf8();
// Write the document string to the stream
writer->Write(markup.c_str(), markup.size(), 1);
}
// Notify the calling thread that the data is now available
event->Signal();
writer->Release();
frame->Release();
}
void CefBrowserImpl::UIT_GetDocumentTextNotify(CefFrame* frame,
CefStreamWriter* writer,
base::WaitableEvent* event)
{
REQUIRE_UIT();
WebKit::WebFrame* web_frame = GetWebFrame(frame);
if(web_frame) {
// Retrieve the document string
std::wstring str = webkit_glue::DumpDocumentText(web_frame);
std::string cstr = WideToUTF8(str);
// Write the document string to the stream
writer->Write(cstr.c_str(), cstr.size(), 1);
}
// Notify the calling thread that the data is now available
event->Signal();
writer->Release();
frame->Release();
}
void CefBrowserImpl::UIT_CanGoBackNotify(bool *retVal,
base::WaitableEvent* event)
{
REQUIRE_UIT();
*retVal = UIT_CanGoBack();
// Notify the calling thread that the data is now available
event->Signal();
}
void CefBrowserImpl::UIT_CanGoForwardNotify(bool *retVal,
base::WaitableEvent* event)
{
REQUIRE_UIT();
*retVal = UIT_CanGoForward();
// Notify the calling thread that the data is now available
event->Signal();
}
void CefBrowserImpl::UIT_Find(int identifier, const std::wstring& search_text,
const WebKit::WebFindOptions& options)
{
WebView* view = GetWebView();
if (!view)
return;
WebFrame* main_frame = view->mainFrame();
if (main_frame->document().isPluginDocument()) {
WebPlugin* plugin = main_frame->document().to<WebPluginDocument>().plugin();
webkit_glue::WebPluginDelegate* delegate =
static_cast<webkit_glue::WebPluginImpl*>(plugin)->delegate();
if (options.findNext) {
// Just navigate back/forward.
delegate->SelectFindResult(options.forward);
} else {
if (delegate->StartFind(StdWStringToWebString(search_text),
options.matchCase, identifier)) {
} else {
// No find results.
UIT_NotifyFindStatus(identifier, 0, gfx::Rect(), 0, true);
}
}
return;
}
WebFrame* frame_after_main = main_frame->traverseNext(true);
WebFrame* focused_frame = view->focusedFrame();
WebFrame* search_frame = focused_frame; // start searching focused frame.
bool multi_frame = (frame_after_main != main_frame);
// If we have multiple frames, we don't want to wrap the search within the
// frame, so we check here if we only have main_frame in the chain.
bool wrap_within_frame = !multi_frame;
WebRect selection_rect;
bool result = false;
// If something is selected when we start searching it means we cannot just
// increment the current match ordinal; we need to re-generate it.
WebRange current_selection = focused_frame->selectionRange();
do {
result = search_frame->find(identifier, StdWStringToWebString(search_text),
options, wrap_within_frame, &selection_rect);
if (!result) {
// don't leave text selected as you move to the next frame.
search_frame->executeCommand(WebString::fromUTF8("Unselect"));
// Find the next frame, but skip the invisible ones.
do {
// What is the next frame to search? (we might be going backwards). Note
// that we specify wrap=true so that search_frame never becomes NULL.
search_frame = options.forward ?
search_frame->traverseNext(true) :
search_frame->traversePrevious(true);
} while (!search_frame->hasVisibleContent() &&
search_frame != focused_frame);
// Make sure selection doesn't affect the search operation in new frame.
search_frame->executeCommand(WebString::fromUTF8("Unselect"));
// If we have multiple frames and we have wrapped back around to the
// focused frame, we need to search it once more allowing wrap within
// the frame, otherwise it will report 'no match' if the focused frame has
// reported matches, but no frames after the focused_frame contain a
// match for the search word(s).
if (multi_frame && search_frame == focused_frame) {
result = search_frame->find(
identifier, StdWStringToWebString(search_text),
options, true, // Force wrapping.
&selection_rect);
}
}
view->setFocusedFrame(search_frame);
} while (!result && search_frame != focused_frame);
if (options.findNext && current_selection.isNull()) {
// Force the main_frame to report the actual count.
main_frame->increaseMatchCount(0, identifier);
} else {
// If nothing is found, set result to "0 of 0", otherwise, set it to
// "-1 of 1" to indicate that we found at least one item, but we don't know
// yet what is active.
int ordinal = result ? -1 : 0; // -1 here means, we might know more later.
int match_count = result ? 1 : 0; // 1 here means possibly more coming.
// If we find no matches then this will be our last status update.
// Otherwise the scoping effort will send more results.
bool final_status_update = !result;
// Send the search result.
UIT_NotifyFindStatus(identifier, match_count, selection_rect, ordinal,
final_status_update);
// Scoping effort begins, starting with the mainframe.
search_frame = main_frame;
main_frame->resetMatchCount();
do {
// Cancel all old scoping requests before starting a new one.
search_frame->cancelPendingScopingEffort();
// We don't start another scoping effort unless at least one match has
// been found.
if (result) {
// Start new scoping request. If the scoping function determines that it
// needs to scope, it will defer until later.
search_frame->scopeStringMatches(identifier,
StdWStringToWebString(search_text),
options,
true); // reset the tickmarks
}
// Iterate to the next frame. The frame will not necessarily scope, for
// example if it is not visible.
search_frame = search_frame->traverseNext(true);
} while (search_frame != main_frame);
}
}
void CefBrowserImpl::UIT_StopFinding(bool clear_selection)
{
WebView* view = GetWebView();
if (!view)
return;
WebDocument doc = view->mainFrame()->document();
if (doc.isPluginDocument()) {
WebPlugin* plugin = view->mainFrame()->document().
to<WebPluginDocument>().plugin();
webkit_glue::WebPluginDelegate* delegate =
static_cast<webkit_glue::WebPluginImpl*>(plugin)->delegate();
delegate->StopFind();
return;
}
if (clear_selection)
view->focusedFrame()->executeCommand(WebString::fromUTF8("Unselect"));
WebFrame* frame = view->mainFrame();
while (frame) {
frame->stopFinding(clear_selection);
frame = frame->traverseNext(false);
}
}
void CefBrowserImpl::UIT_NotifyFindStatus(int identifier, int count,
const WebKit::WebRect& selection_rect,
int active_match_ordinal,
bool final_update)
{
if(handler_.get())
{
CefRect rect(selection_rect.x, selection_rect.y, selection_rect.width,
selection_rect.height);
handler_->HandleFindResult(this, identifier, count, rect,
active_match_ordinal, final_update);
}
}
// CefFrameImpl
bool CefFrameImpl::IsFocused()
{
return (browser_->GetWebView() &&
(browser_->GetWebFrame(this) ==
browser_->GetWebView()->focusedFrame()));
}
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