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cef/libcef/browser_impl.h

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// Copyright (c) 2008 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 "jscontainer.h"
#include "context.h"
#include "webview_host.h"
#include "browser_webview_delegate.h"
#include "browser_navigation_controller.h"
#if defined(OS_WIN)
#include "printing/win_printing_context.h"
#endif
#include "webkit/glue/webview.h"
// Implementation of CefBrowser.
class CefBrowserImpl : public CefThreadSafeBase<CefBrowser>
{
public:
CefBrowserImpl(CefWindowInfo& windowInfo, bool popup,
CefRefPtr<CefHandler> handler, const std::wstring& url);
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();
virtual void GoBack();
virtual bool CanGoForward();
virtual void GoForward();
virtual void Reload();
virtual void StopLoad();
virtual void Undo(TargetFrame targetFrame);
virtual void Redo(TargetFrame targetFrame);
virtual void Cut(TargetFrame targetFrame);
virtual void Copy(TargetFrame targetFrame);
virtual void Paste(TargetFrame targetFrame);
virtual void Delete(TargetFrame targetFrame);
virtual void SelectAll(TargetFrame targetFrame);
virtual void Print(TargetFrame targetFrame);
virtual void ViewSource(TargetFrame targetFrame);
virtual std::wstring GetSource(TargetFrame targetFrame);
virtual std::wstring GetText(TargetFrame targetFrame);
virtual void LoadRequest(CefRefPtr<CefRequest> request);
virtual void LoadURL(const std::wstring& url, const std::wstring& frame);
virtual void LoadString(const std::wstring& string,
const std::wstring& url);
virtual void LoadStream(CefRefPtr<CefStreamReader> stream,
const std::wstring& url);
virtual void ExecuteJavaScript(const std::wstring& js_code,
const std::wstring& script_url,
int start_line, TargetFrame targetFrame);
virtual bool AddJSHandler(const std::wstring& classname,
CefRefPtr<CefJSHandler> handler);
virtual bool HasJSHandler(const std::wstring& classname);
virtual CefRefPtr<CefJSHandler> GetJSHandler(const std::wstring& classname);
virtual bool RemoveJSHandler(const std::wstring& classname);
virtual void RemoveAllJSHandlers();
virtual CefWindowHandle GetWindowHandle();
virtual bool IsPopup();
virtual CefRefPtr<CefHandler> GetHandler();
virtual std::wstring GetURL();
void SetURL(const std::wstring& url);
////////////////////////////////////////////////////////////
// ALL UIT_* METHODS MUST ONLY BE CALLED ON THE UI THREAD //
////////////////////////////////////////////////////////////
WebView* UIT_GetWebView() const {
REQUIRE_UIT();
return webviewhost_.get() ? webviewhost_->webview() : NULL;
}
WebViewHost* UIT_GetWebViewHost() const {
REQUIRE_UIT();
return webviewhost_.get();
}
HWND UIT_GetWebViewWndHandle() const {
REQUIRE_UIT();
return webviewhost_->window_handle();
}
WebWidget* UIT_GetPopup() const {
REQUIRE_UIT();
return popuphost_ ? popuphost_->webwidget() : NULL;
}
WebWidgetHost* UIT_GetPopupHost() const {
REQUIRE_UIT();
return popuphost_;
}
HWND UIT_GetPopupWndHandle() const {
REQUIRE_UIT();
return popuphost_->window_handle();
}
HWND UIT_GetMainWndHandle() const {
REQUIRE_UIT();
return window_info_.m_hWnd;
}
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;
}
void UIT_SetTitle(const std::wstring& title) {
REQUIRE_UIT();
title_ = title;
}
std::wstring UIT_GetTitle() {
REQUIRE_UIT();
return title_;
}
// UIThread functions must be executed from the UI thread.
void UIT_CreateBrowser();
void UIT_LoadURL(const std::wstring& url);
void UIT_LoadURLForFrame(const std::wstring& url,
const std::wstring& frame_name);
void UIT_LoadURLForRequest(const std::wstring& url,
const std::wstring& frame_name,
const std::wstring& method,
net::UploadData *upload_data,
const WebRequest::HeaderMap& headers);
void UIT_LoadURLForRequestRef(CefRequest* request);
void UIT_LoadHTML(const std::wstring& html,
const std::wstring& url);
void UIT_LoadHTMLForStreamRef(CefStreamReader* stream,
const std::wstring& url);
void UIT_ExecuteJavaScript(const std::wstring& js_code,
const std::wstring& script_url,
int start_line, TargetFrame targetFrame);
void UIT_GoBackOrForward(int offset);
void UIT_Reload();
bool UIT_Navigate(const BrowserNavigationEntry& entry, bool reload);
void UIT_SetFocus(WebWidgetHost* host, bool enable);
// Called by the WebView delegate WindowObjectCleared() method, this
// binds the C++ controller classes to window JavaScript objects.
void UIT_BindJSObjectsToWindow(WebFrame* frame);
CefRefPtr<CefBrowserImpl> UIT_CreatePopupWindow(const std::wstring& url);
WebWidget* UIT_CreatePopupWidget(WebView* webview);
void UIT_ClosePopupWidget();
void UIT_Show(WebView* webview, WindowOpenDisposition disposition);
// Handles most simple browser actions
void UIT_HandleAction(CefHandler::MenuId menuId, TargetFrame target);
// Save the document HTML to a temporary file and open in the default viewing
// application
bool UIT_ViewDocumentString(WebFrame *frame);
#if defined(OS_WIN)
void UIT_GetDocumentStringNotify(TargetFrame targetFrame,
CefStreamWriter* writer, HANDLE hEvent);
void UIT_GetDocumentTextNotify(TargetFrame targetFrame,
CefStreamWriter* writer, HANDLE hEvent);
void UIT_CanGoBackNotify(bool *retVal, HANDLE hEvent);
void UIT_CanGoForwardNotify(bool *retVal, HANDLE hEvent);
#endif
bool UIT_CanGoBack() { return !nav_controller_->IsAtStart(); }
bool UIT_CanGoForward() { return !nav_controller_->IsAtEnd(); }
// Printing support
void UIT_PrintPages(WebFrame* frame);
void UIT_PrintPage(int page_number, WebFrame* frame, int total_pages);
void UIT_SwitchFrameToDisplayMediaType(WebFrame* frame);
int UIT_SwitchFrameToPrintMediaType(WebFrame* frame);
int UIT_GetPagesCount(WebFrame* frame);
#if defined(OS_WIN)
void UIT_DisableWebView(bool val);
bool UIT_IsWebViewDisabled() { return (webview_bitmap_ != NULL); }
void UIT_CaptureWebViewBitmap(HBITMAP &bitmap, SIZE &size);
void UIT_SetWebViewBitmap(HBITMAP bitmap, SIZE size);
void UIT_GetWebViewBitmap(HBITMAP &bitmap, SIZE &size)
{
bitmap = webview_bitmap_;
size.cx = webview_bitmap_size_.cx;
size.cy = webview_bitmap_size_.cy;
}
#endif
protected:
CefWindowInfo window_info_;
bool is_popup_;
bool is_modal_;
std::wstring url_;
CefRefPtr<CefHandler> handler_;
scoped_ptr<WebViewHost> webviewhost_;
WebWidgetHost* popuphost_;
scoped_refptr<BrowserWebViewDelegate> delegate_;
scoped_ptr<BrowserNavigationController> nav_controller_;
std::wstring title_;
// Backup the view size before printing since it needs to be overriden. This
// value is set to restore the view size when printing is done.
gfx::Size printing_view_size_;
// Context object used to manage printing.
printing::PrintingContext print_context_;
typedef std::map<std::wstring, CefRefPtr<CefJSContainer> > JSContainerMap;
JSContainerMap jscontainers_;
#if defined(OS_WIN)
HBITMAP webview_bitmap_;
SIZE webview_bitmap_size_;
#endif
};
#endif // _BROWSER_IMPL_H
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