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// Copyright (c) 2009 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 CHROME_RENDERER_PRINT_WEB_VIEW_DELEGATE_H_
#define CHROME_RENDERER_PRINT_WEB_VIEW_DELEGATE_H_
#include <vector>
#include "base/gfx/size.h"
#include "base/scoped_ptr.h"
#include "base/time.h"
#include "webkit/glue/webview_delegate.h"
namespace gfx {
class Size;
}
namespace IPC {
class Message;
}
class RenderView;
class WebView;
struct ViewMsg_Print_Params;
struct ViewMsg_PrintPage_Params;
struct ViewMsg_PrintPages_Params;
// Class that calls the Begin and End print functions on the frame and changes
// the size of the view temporarily to support full page printing..
// Do not serve any events in the time between construction and destruction of
// this class because it will cause flicker.
class PrepareFrameAndViewForPrint {
public:
PrepareFrameAndViewForPrint(const ViewMsg_Print_Params& print_params,
WebFrame* frame,
WebView* web_view);
~PrepareFrameAndViewForPrint();
int GetExpectedPageCount() const {
return expected_pages_count_;
}
const gfx::Size& GetPrintCanvasSize() const {
return print_canvas_size_;
}
private:
WebFrame* frame_;
WebView* web_view_;
gfx::Size print_canvas_size_;
gfx::Size prev_view_size_;
int expected_pages_count_;
DISALLOW_COPY_AND_ASSIGN(PrepareFrameAndViewForPrint);
};
// PrintWebViewHelper handles most of the printing grunt work for RenderView.
// We plan on making print asynchronous and that will require copying the DOM
// of the document and creating a new WebView with the contents.
class PrintWebViewHelper : public WebViewDelegate {
public:
explicit PrintWebViewHelper(RenderView* render_view);
virtual ~PrintWebViewHelper();
void Print(WebFrame* frame, bool script_initiated);
// Is there a background print in progress?
bool IsPrinting() {
return print_web_view_.get() != NULL;
}
// Notification when printing is done - signal teardown
void DidFinishPrinting(bool success);
protected:
bool CopyAndPrint(const ViewMsg_PrintPages_Params& params,
WebFrame* web_frame);
// Prints the page listed in |params|.
void PrintPage(const ViewMsg_PrintPage_Params& params,
const gfx::Size& canvas_size,
WebFrame* frame);
// Prints all the pages listed in |params|.
// It will implicitly revert the document to display CSS media type.
void PrintPages(const ViewMsg_PrintPages_Params& params, WebFrame* frame);
// IPC::Message::Sender
bool Send(IPC::Message* msg);
int32 routing_id();
// WebViewDeletegate
virtual void didInvalidateRect(const WebKit::WebRect&) {}
virtual void didScrollRect(int dx, int dy, const WebKit::WebRect& clipRect) {}
virtual void didFocus() {}
virtual void didBlur() {}
virtual void didChangeCursor(const WebKit::WebCursorInfo&) {}
virtual void closeWidgetSoon() {}
virtual void show(WebKit::WebNavigationPolicy) {}
virtual void runModal() {}
virtual WebKit::WebRect windowRect();
virtual void setWindowRect(const WebKit::WebRect&) {}
virtual WebKit::WebRect windowResizerRect();
virtual WebKit::WebRect rootWindowRect();
virtual WebKit::WebScreenInfo screenInfo();
virtual void DidStopLoading(WebView* webview);
private:
RenderView* render_view_;
scoped_ptr<WebView> print_web_view_;
scoped_ptr<ViewMsg_PrintPages_Params> print_pages_params_;
base::Time last_cancelled_script_print_;
int user_cancelled_scripted_print_count_;
private:
DISALLOW_COPY_AND_ASSIGN(PrintWebViewHelper);
};
#endif // CHROME_RENDERER_PRINT_WEB_VIEW_DELEGATE_H_
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