forked from mirrors/gecko-dev
49e37dc76e
This patch does not change behavior (other than a minor correctness fix in some off-by-default logging; see below). As shown in the removed line of the init list, this mFrameType member-var's semantics are equivalent to a null-check of the mParent member-var. So: rather than encoding that same information twice, this patch simplifies to just directly null-check the mParent pointer at all the usage sites. Before this patch, nsPrintJob.cpp had two different patterns for logging mFrameType; sometimes with a global `gFrameTypesStr` array, and other times with a local `types` array (with shorter 2-character strings). I've converted both of these to helper-functions. In the case of the `types` array, the old code used a 4-value array, which was interesting since the enum type only had 2 possible values. This discrepancy is just due to an oversight in bug 1769508, where we recently condensed the enum from 4 values to 2; that bug technically should've condensed these arrays as well (but didn't do so). This left these arrays' enum-to-string mapping being wrong (since eIFrame changed its numeric value from 2 to 1 in bug 1769508), but probably nobody has used this logging code in a while, so nobody noticed. Anyway: in this patch, I'm restoring the mappings that we had before that change (so we'll log "DC" for root print objects and "IF" for non-root i.e. iframe-flavored print objects). Differential Revision: https://phabricator.services.mozilla.com/D150177
88 lines
2.7 KiB
C++
88 lines
2.7 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* 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
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef nsPrintObject_h___
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#define nsPrintObject_h___
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#include "mozilla/Attributes.h"
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#include "mozilla/UniquePtr.h"
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// Interfaces
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#include "nsCOMPtr.h"
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#include "nsViewManager.h"
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#include "nsIDocShell.h"
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#include "nsIDocShellTreeOwner.h"
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class nsIContent;
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class nsPresContext;
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namespace mozilla {
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class PresShell;
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} // namespace mozilla
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//---------------------------------------------------
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//-- nsPrintObject Class
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//---------------------------------------------------
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class nsPrintObject final {
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public:
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/**
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* If aParent is nullptr (default), then this instance will be initialized as
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* a "root" nsPrintObject. Otherwise, this will be a "nested" nsPrintObject.
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*/
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nsPrintObject(nsIDocShell& aDocShell, mozilla::dom::Document& aDoc,
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nsPrintObject* aParent = nullptr);
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~nsPrintObject();
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void DestroyPresentation();
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/**
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* Recursively sets all the PO items to be printed
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* from the given item down into the tree
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*/
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void EnablePrinting(bool aEnable);
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/**
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* Recursively sets all the PO items to be printed if they have a selection.
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*/
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void EnablePrintingSelectionOnly();
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bool PrintingIsEnabled() const { return mPrintingIsEnabled; }
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bool HasSelection() const;
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// Data Members
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nsCOMPtr<nsIDocShell> mDocShell;
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nsCOMPtr<nsIDocShellTreeOwner> mTreeOwner;
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RefPtr<mozilla::dom::Document> mDocument;
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RefPtr<nsPresContext> mPresContext;
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RefPtr<mozilla::PresShell> mPresShell;
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RefPtr<nsViewManager> mViewManager;
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nsCOMPtr<nsIContent> mContent;
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nsTArray<mozilla::UniquePtr<nsPrintObject>> mKids;
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const nsPrintObject* mParent; // This is a non-owning pointer.
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bool mHasBeenPrinted = false;
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bool mInvisible = false; // Indicates PO is set to not visible by CSS
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// The scale factor that sheets should be scaled by. This is either the
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// explicit scale chosen by the user or else the shrink-to-fit scale factor
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// if the user selects shrink-to-fit. Only set on the top-level nsPrintObject
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// since this is only used by nsPageFrame (via nsPresContext::GetPageScale()).
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float mZoomRatio = 1.0;
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// If the user selects the shrink-to-fit option, the shrink-to-fit scale
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// factor is calculated and stored here. Only set on the top-level
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// nsPrintObject.
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float mShrinkRatio = 1.0;
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private:
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nsPrintObject& operator=(const nsPrintObject& aOther) = delete;
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bool mPrintingIsEnabled = false;
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};
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#endif /* nsPrintObject_h___ */
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