2969a5e0cb
Most frame types have identical or very similar implementation for GetMinISize() and GetPrefISize(), and many of them already have `IntrinsicISize()` to unify the implementation. This patch introduces nsIFrame::IntrinsicISize() so that derived classes only need to override one method. `nsBlockFrame`, `ColumnSetWrapperFrame`, and `nsColumnSetFrame` are the only three classes where their `GetMinISize()` and `GetPrefISize()` have significant differences. Therefore, we rename `GetMinISize()` and `GetPrefISize()` to `MinISize()` and `PrefISize`, respectively, and use them as helpers to implement their `IntrinsicISize()`. This patch doesn't change behavior. Differential Revision: https://phabricator.services.mozilla.com/D217790
56 lines
1.8 KiB
C++
56 lines
1.8 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
|
|
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
|
|
/* 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/. */
|
|
|
|
/* base class for rendering objects that do not have child lists */
|
|
|
|
#ifndef nsLeafFrame_h___
|
|
#define nsLeafFrame_h___
|
|
|
|
#include "mozilla/Attributes.h"
|
|
#include "nsIFrame.h"
|
|
#include "nsDisplayList.h"
|
|
|
|
/**
|
|
* Abstract class that provides simple fixed-size layout for leaf objects.
|
|
*/
|
|
class nsLeafFrame : public nsIFrame {
|
|
public:
|
|
NS_DECL_ABSTRACT_FRAME(nsLeafFrame)
|
|
|
|
// nsIFrame replacements
|
|
void BuildDisplayList(nsDisplayListBuilder* aBuilder,
|
|
const nsDisplayListSet& aLists) override;
|
|
|
|
nscoord IntrinsicISize(gfxContext* aContext,
|
|
mozilla::IntrinsicISizeType aType) override;
|
|
|
|
/**
|
|
* Our auto size is just the intrinsic size.
|
|
*/
|
|
mozilla::LogicalSize ComputeAutoSize(
|
|
gfxContext* aRenderingContext, mozilla::WritingMode aWM,
|
|
const mozilla::LogicalSize& aCBSize, nscoord aAvailableISize,
|
|
const mozilla::LogicalSize& aMargin,
|
|
const mozilla::LogicalSize& aBorderPadding,
|
|
const mozilla::StyleSizeOverrides& aSizeOverrides,
|
|
mozilla::ComputeSizeFlags aFlags) override;
|
|
|
|
/**
|
|
* Each of our subclasses should provide its own Reflow impl:
|
|
*/
|
|
void Reflow(nsPresContext* aPresContext, ReflowOutput& aDesiredSize,
|
|
const ReflowInput& aReflowInput,
|
|
nsReflowStatus& aStatus) override = 0;
|
|
|
|
protected:
|
|
nsLeafFrame(ComputedStyle* aStyle, nsPresContext* aPresContext, ClassID aID)
|
|
: nsIFrame(aStyle, aPresContext, aID) {}
|
|
|
|
virtual ~nsLeafFrame();
|
|
};
|
|
|
|
#endif /* nsLeafFrame_h___ */
|