gecko-dev/layout/generic/nsIPageSequenceFrame.h

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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef nsIPageSequenceFrame_h___
#define nsIPageSequenceFrame_h___
#include "nsQueryFrame.h"
#include "nsCoord.h"
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class nsPresContext;
class nsIPrintSettings;
class nsITimerCallback;
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/**
* Interface for accessing special capabilities of the page sequence frame.
*
* Today all that exists are member functions for printing.
*/
class nsIPageSequenceFrame : public nsQueryFrame {
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public:
NS_DECL_QUERYFRAME_TARGET(nsIPageSequenceFrame)
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/**
* Print the set of pages.
*
* @param aPrintOptions options for printing
* @param aStatusCallback interface that the client provides to receive
* progress notifications. Can be nullptr
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* @return NS_OK if successful
* NS_ERROR_ABORT if the client cancels printing using the callback
* interface
* NS_ERROR_INVALID_ARG if printing a range of pages (not all pages)
* and the start page is greater than the total number of pages
* NS_ERROR_FAILURE if there is an error
*/
NS_IMETHOD StartPrint(nsPresContext* aPresContext,
nsIPrintSettings* aPrintOptions,
const nsAString& aDocTitle,
const nsAString& aDocURL) = 0;
NS_IMETHOD PrePrintNextPage(nsITimerCallback* aCallback, bool* aDone) = 0;
NS_IMETHOD PrintNextPage() = 0;
NS_IMETHOD ResetPrintCanvasList() = 0;
NS_IMETHOD GetCurrentPageNum(int32_t* aPageNum) = 0;
NS_IMETHOD GetNumPages(int32_t* aNumPages) = 0;
NS_IMETHOD IsDoingPrintRange(bool* aDoing) = 0;
NS_IMETHOD GetPrintRange(int32_t* aFromPage, int32_t* aToPage) = 0;
NS_IMETHOD DoPageEnd() = 0;
// For Shrink To Fit
NS_IMETHOD GetSTFPercent(float& aSTFPercent) = 0;
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};
#endif /* nsIPageSequenceFrame_h___ */