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cef/libcef/browser_impl.h

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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.
#ifndef _BROWSER_IMPL_H
#define _BROWSER_IMPL_H
#include "include/cef.h"
#include "webview_host.h"
#include "browser_devtools_agent.h"
#include "browser_devtools_client.h"
#include "browser_webview_delegate.h"
#include "browser_navigation_controller.h"
#include "cef_thread.h"
#if defined(OS_WIN)
#include "printing/win_printing_context.h"
#endif
#include "base/scoped_temp_dir.h"
#include "third_party/WebKit/WebKit/chromium/public/WebFindOptions.h"
namespace base {
class WaitableEvent;
}
namespace WebKit {
class WebView;
}
#define BUFFER_SIZE 32768
// Implementation of CefBrowser.
class CefBrowserImpl : public CefThreadSafeBase<CefBrowser>
{
public:
CefBrowserImpl(const CefWindowInfo& windowInfo,
const CefBrowserSettings& settings, bool popup,
CefRefPtr<CefHandler> handler);
virtual ~CefBrowserImpl() {}
#if defined(OS_WIN)
static LPCTSTR GetWndClass();
static LRESULT CALLBACK WndProc(HWND hwnd, UINT message, WPARAM wParam,
LPARAM lParam);
#endif
// CefBrowser methods
virtual bool CanGoBack() { return can_go_back(); }
virtual void GoBack();
virtual bool CanGoForward() { return can_go_forward(); }
virtual void GoForward();
virtual void Reload();
virtual void ReloadIgnoreCache();
virtual void StopLoad();
virtual void SetFocus(bool enable);
virtual CefWindowHandle GetWindowHandle();
virtual bool IsPopup() { return is_popup(); }
virtual CefRefPtr<CefHandler> GetHandler() { return handler_; }
virtual CefRefPtr<CefFrame> GetMainFrame() { return GetMainCefFrame(); }
virtual CefRefPtr<CefFrame> GetFocusedFrame();
virtual CefRefPtr<CefFrame> GetFrame(const CefString& name);
virtual void GetFrameNames(std::vector<CefString>& names);
virtual void Find(int identifier, const CefString& searchText,
bool forward, bool matchCase, bool findNext);
virtual void StopFinding(bool clearSelection);
virtual double GetZoomLevel() { return zoom_level(); }
virtual void SetZoomLevel(double zoomLevel);
virtual void ShowDevTools();
virtual void CloseDevTools();
// Frame-related methods
void Undo(CefRefPtr<CefFrame> frame);
void Redo(CefRefPtr<CefFrame> frame);
void Cut(CefRefPtr<CefFrame> frame);
void Copy(CefRefPtr<CefFrame> frame);
void Paste(CefRefPtr<CefFrame> frame);
void Delete(CefRefPtr<CefFrame> frame);
void SelectAll(CefRefPtr<CefFrame> frame);
void Print(CefRefPtr<CefFrame> frame);
void ViewSource(CefRefPtr<CefFrame> frame);
CefString GetSource(CefRefPtr<CefFrame> frame);
CefString GetText(CefRefPtr<CefFrame> frame);
void LoadRequest(CefRefPtr<CefFrame> frame,
CefRefPtr<CefRequest> request);
void LoadURL(CefRefPtr<CefFrame> frame,
const CefString& url);
void LoadString(CefRefPtr<CefFrame> frame,
const CefString& string,
const CefString& url);
void LoadStream(CefRefPtr<CefFrame> frame,
CefRefPtr<CefStreamReader> stream,
const CefString& url);
void ExecuteJavaScript(CefRefPtr<CefFrame> frame,
const CefString& jsCode,
const CefString& scriptUrl,
int startLine);
CefString GetURL(CefRefPtr<CefFrame> frame);
// CefFrames are light-weight objects managed by the browser and loosely
// coupled to a WebFrame object by name. If a CefFrame object does not
// already exist for the specified name one will be created. There is no
// guarantee that the same CefFrame object will be returned across different
// calls to this function.
CefRefPtr<CefFrame> GetCefFrame(const CefString& name);
void RemoveCefFrame(const CefString& name);
CefRefPtr<CefFrame> GetMainCefFrame();
////////////////////////////////////////////////////////////
// ALL UIT_* METHODS MUST ONLY BE CALLED ON THE UI THREAD //
////////////////////////////////////////////////////////////
CefRefPtr<CefFrame> UIT_GetCefFrame(WebKit::WebFrame* frame);
// Return the main WebFrame object.
WebKit::WebFrame* UIT_GetMainWebFrame();
// Return the WebFrame object associated with the specified CefFrame. This
// may return NULL if no WebFrame with the CefFrame's name exists.
WebKit::WebFrame* UIT_GetWebFrame(CefRefPtr<CefFrame> frame);
WebKit::WebView* UIT_GetWebView() const {
REQUIRE_UIT();
return webviewhost_.get() ? webviewhost_->webview() : NULL;
}
WebViewHost* UIT_GetWebViewHost() const {
REQUIRE_UIT();
return webviewhost_.get();
}
BrowserWebViewDelegate* UIT_GetWebViewDelegate() const {
REQUIRE_UIT();
return delegate_.get();
}
gfx::NativeView UIT_GetWebViewWndHandle() const {
REQUIRE_UIT();
return webviewhost_->view_handle();
}
WebKit::WebWidget* UIT_GetPopup() const {
REQUIRE_UIT();
return popuphost_ ? popuphost_->webwidget() : NULL;
}
WebWidgetHost* UIT_GetPopupHost() const {
REQUIRE_UIT();
return popuphost_;
}
BrowserWebViewDelegate* UIT_GetPopupDelegate() const {
REQUIRE_UIT();
return popup_delegate_.get();
}
gfx::NativeView UIT_GetPopupWndHandle() const {
REQUIRE_UIT();
return popuphost_->view_handle();
}
gfx::NativeWindow UIT_GetMainWndHandle() const;
BrowserNavigationController* UIT_GetNavigationController() {
REQUIRE_UIT();
return nav_controller_.get();
}
// Return true to allow user editing such as entering text in form elements
bool UIT_AllowEditing() { return true; }
bool UIT_IsModal() {
REQUIRE_UIT();
return is_modal_;
}
void UIT_SetIsModal(bool val) {
REQUIRE_UIT();
is_modal_ = val;
}
CefString UIT_GetTitle() {
REQUIRE_UIT();
return title_;
}
void UIT_SetTitle(const CefString& title) {
REQUIRE_UIT();
title_ = title;
}
// Create the native browser window and populate browser members.
void UIT_CreateBrowser(const CefString& url);
// Destroy the browser members. This method should only be called after the
// native browser window is not longer processing messages.
void UIT_DestroyBrowser();
// Sends a message via the OS to close the native browser window.
// UIT_DestroyBrowser will be called after the native window has closed.
void UIT_CloseBrowser();
void UIT_LoadURL(CefRefPtr<CefFrame> frame,
const CefString& url);
void UIT_LoadURLForRequest(CefRefPtr<CefFrame> frame,
const CefString& url,
const CefString& method,
const WebKit::WebHTTPBody& upload_data,
const CefRequest::HeaderMap& headers);
void UIT_LoadURLForRequestRef(CefRefPtr<CefFrame> frame,
CefRefPtr<CefRequest> request);
void UIT_LoadHTML(CefRefPtr<CefFrame> frame,
const CefString& html,
const CefString& url);
void UIT_LoadHTMLForStreamRef(CefRefPtr<CefFrame> frame,
CefRefPtr<CefStreamReader> stream,
const CefString& url);
void UIT_ExecuteJavaScript(CefRefPtr<CefFrame> frame,
const CefString& js_code,
const CefString& script_url,
int start_line);
void UIT_GoBackOrForward(int offset);
void UIT_Reload(bool ignoreCache);
bool UIT_Navigate(const BrowserNavigationEntry& entry,
bool reload,
bool ignoreCahce);
void UIT_SetFocus(WebWidgetHost* host, bool enable);
CefRefPtr<CefBrowserImpl> UIT_CreatePopupWindow(const CefString& url,
const CefPopupFeatures& features);
WebKit::WebWidget* UIT_CreatePopupWidget();
void UIT_ClosePopupWidget();
void UIT_Show(WebKit::WebNavigationPolicy policy);
// Handles most simple browser actions
void UIT_HandleActionView(CefHandler::MenuId menuId);
void UIT_HandleAction(CefHandler::MenuId menuId, CefRefPtr<CefFrame> frame);
// Save the document HTML to a temporary file and open in the default viewing
// application
bool UIT_ViewDocumentString(WebKit::WebFrame *frame);
bool UIT_CanGoBack() { return !nav_controller_->IsAtStart(); }
bool UIT_CanGoForward() { return !nav_controller_->IsAtEnd(); }
// Printing support
void UIT_PrintPages(WebKit::WebFrame* frame);
void UIT_PrintPage(int page_number, int total_pages,
const gfx::Size& canvas_size, WebKit::WebFrame* frame);
int UIT_GetPagesCount(WebKit::WebFrame* frame);
void UIT_SetUniqueID(int id) { unique_id_ = id; }
int UIT_GetUniqueID() { return unique_id_; }
void UIT_Find(int identifier, const CefString& search_text,
const WebKit::WebFindOptions& options);
void UIT_StopFinding(bool clear_selection);
void UIT_NotifyFindStatus(int identifier, int count,
const WebKit::WebRect& selection_rect,
int active_match_ordinal, bool final_update);
void UIT_SetZoomLevel(double zoomLevel);
void UIT_ShowDevTools();
void UIT_CloseDevTools();
// These variables are read-only.
const CefBrowserSettings& settings() const { return settings_; }
const FilePath& file_system_root() const { return file_system_root_.path(); }
bool is_popup() { return is_popup_; }
// These variables may be read/written from multiple threads.
void set_zoom_level(double zoomLevel);
double zoom_level();
void set_nav_state(bool can_go_back, bool can_go_forward);
bool can_go_back();
bool can_go_forward();
static bool ImplementsThreadSafeReferenceCounting() { return true; }
protected:
void UIT_CreateDevToolsClient(BrowserDevToolsAgent* agent);
void UIT_DestroyDevToolsClient();
protected:
CefWindowInfo window_info_;
CefBrowserSettings settings_;
bool is_popup_;
bool is_modal_;
CefRefPtr<CefHandler> handler_;
scoped_ptr<WebViewHost> webviewhost_;
WebWidgetHost* popuphost_;
scoped_ptr<BrowserWebViewDelegate> delegate_;
scoped_ptr<BrowserWebViewDelegate> popup_delegate_;
scoped_ptr<BrowserNavigationController> nav_controller_;
scoped_ptr<BrowserDevToolsAgent> dev_tools_agent_;
scoped_ptr<BrowserDevToolsClient> dev_tools_client_;
CefString title_;
double zoom_level_;
bool can_go_back_;
bool can_go_forward_;
#if defined(OS_WIN)
// Context object used to manage printing.
printing::PrintingContext print_context_;
#endif
typedef std::map<CefString, CefFrame*> FrameMap;
FrameMap frames_;
CefFrame* main_frame_;
// Unique browser ID assigned by the context.
int unique_id_;
// A temporary directory for FileSystem API.
ScopedTempDir file_system_root_;
};
// Implementation of CefFrame.
class CefFrameImpl : public CefThreadSafeBase<CefFrame>
{
public:
CefFrameImpl(CefBrowserImpl* browser, const CefString& name);
virtual ~CefFrameImpl();
// CefFrame methods
virtual void Undo() { browser_->Undo(this); }
virtual void Redo() { browser_->Redo(this); }
virtual void Cut() { browser_->Cut(this); }
virtual void Copy() { browser_->Copy(this); }
virtual void Paste() { browser_->Paste(this); }
virtual void Delete() { browser_->Delete(this); }
virtual void SelectAll() { browser_->SelectAll(this); }
virtual void Print() { browser_->Print(this); }
virtual void ViewSource() { browser_->ViewSource(this); }
virtual CefString GetSource() { return browser_->GetSource(this); }
virtual CefString GetText() { return browser_->GetText(this); }
virtual void LoadRequest(CefRefPtr<CefRequest> request)
{ return browser_->LoadRequest(this, request); }
virtual void LoadURL(const CefString& url)
{ return browser_->LoadURL(this, url); }
virtual void LoadString(const CefString& string,
const CefString& url)
{ return browser_->LoadString(this, string, url); }
virtual void LoadStream(CefRefPtr<CefStreamReader> stream,
const CefString& url)
{ return browser_->LoadStream(this, stream, url); }
virtual void ExecuteJavaScript(const CefString& jsCode,
const CefString& scriptUrl,
int startLine)
{ return browser_->ExecuteJavaScript(this, jsCode, scriptUrl, startLine); }
virtual bool IsMain() { return name_.empty(); }
virtual bool IsFocused();
virtual CefString GetName() { return name_; }
virtual CefString GetURL() { return browser_->GetURL(this); }
private:
CefRefPtr<CefBrowserImpl> browser_;
CefString name_;
};
#endif // _BROWSER_IMPL_H
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