gecko-dev/accessible/base/StyleInfo.h
Emilio Cobos Álvarez 7dffe29d8f Bug 1432490: Make nsComputedDOMStyle::GetStyleContext / GetStyleContextNoFlush not take a presShell. r=bz
Everyone calls them with the shell of the current composed document, and this
allows the multi-presShell stuff to just be in UpdateCurrentStyleSources /
DoGetStyleContextNoFlush.

The only reason we need to use OwnerDoc()->GetShell() instead of the composed
doc in GetStyleContext / GetStyleContextNoFlush is Element::GetBindingURL, which
does expect to get the binding URL for stuff outside of the composed doc (and
changing that gave me a useless browser).

That's technically a behavior change on the cases that used to pass nullptr, but
I think all callers are fine with that. I could also just add a special function
for that particular case, it may be worth it.

MozReview-Commit-ID: 2XlnkgdgDCK
2018-02-25 02:23:59 +01:00

49 lines
1.5 KiB
C++

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set expandtab shiftwidth=2 tabstop=2: */
/* 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/. */
#ifndef _mozilla_a11y_style_h_
#define _mozilla_a11y_style_h_
#include "mozilla/gfx/Types.h"
#include "nsStyleContext.h"
namespace mozilla {
namespace a11y {
class StyleInfo
{
public:
explicit StyleInfo(dom::Element* aElement);
~StyleInfo() { }
void Display(nsAString& aValue);
void TextAlign(nsAString& aValue);
void TextIndent(nsAString& aValue);
void MarginLeft(nsAString& aValue) { Margin(eSideLeft, aValue); }
void MarginRight(nsAString& aValue) { Margin(eSideRight, aValue); }
void MarginTop(nsAString& aValue) { Margin(eSideTop, aValue); }
void MarginBottom(nsAString& aValue) { Margin(eSideBottom, aValue); }
static void FormatColor(const nscolor& aValue, nsString& aFormattedValue);
static void FormatFontStyle(const nscoord& aValue, nsAString& aFormattedValue);
static void FormatTextDecorationStyle(uint8_t aValue, nsAString& aFormattedValue);
private:
StyleInfo() = delete;
StyleInfo(const StyleInfo&) = delete;
StyleInfo& operator = (const StyleInfo&) = delete;
void Margin(Side aSide, nsAString& aValue);
dom::Element* mElement;
RefPtr<nsStyleContext> mStyleContext;
};
} // namespace a11y
} // namespace mozilla
#endif