forked from mirrors/gecko-dev
110 lines
3.9 KiB
C++
110 lines
3.9 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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/* constants for frame state bits and a type to store them in a uint64_t */
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#include "nsFrameState.h"
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#include "nsBlockFrame.h"
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#include "nsBoxFrame.h"
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#include "nsFlexContainerFrame.h"
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#include "nsGridContainerFrame.h"
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#include "nsGfxScrollFrame.h"
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#include "nsIFrame.h"
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#include "nsImageFrame.h"
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#include "nsInlineFrame.h"
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#include "nsPageFrame.h"
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#include "nsPlaceholderFrame.h"
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#include "nsRubyTextFrame.h"
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#include "nsRubyTextContainerFrame.h"
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#include "nsTableCellFrame.h"
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#include "nsTableRowFrame.h"
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#include "nsTableRowGroupFrame.h"
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#include "nsTextFrame.h"
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#include "mozilla/ISVGDisplayableFrame.h"
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#include "mozilla/SVGContainerFrame.h"
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namespace mozilla {
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#ifdef DEBUG
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nsCString GetFrameState(nsIFrame* aFrame) {
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nsCString result;
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AutoTArray<const char*, 3> groups;
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nsFrameState state = aFrame->GetStateBits();
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if (state == nsFrameState(0)) {
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result.Assign('0');
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return result;
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}
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# define FRAME_STATE_GROUP_CLASS(name_, class_) \
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{ \
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class_* frame = do_QueryFrame(aFrame); \
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if (frame && \
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(groups.IsEmpty() || strcmp(groups.LastElement(), #name_))) { \
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groups.AppendElement(#name_); \
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} \
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}
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# define FRAME_STATE_BIT(group_, value_, name_) \
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if ((state & NS_FRAME_STATE_BIT(value_)) && groups.Contains(#group_)) { \
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if (!result.IsEmpty()) { \
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result.InsertLiteral(" | ", 0); \
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} \
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result.InsertLiteral(#name_, 0); \
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state = state & ~NS_FRAME_STATE_BIT(value_); \
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}
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# include "nsFrameStateBits.h"
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# undef FRAME_STATE_GROUP_CLASS
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# undef FRAME_STATE_BIT
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if (state) {
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result.AppendPrintf(" | 0x%0" PRIx64, static_cast<uint64_t>(state));
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}
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return result;
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}
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void PrintFrameState(nsIFrame* aFrame) {
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printf("%s\n", GetFrameState(aFrame).get());
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}
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enum class FrameStateGroupId {
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# define FRAME_STATE_GROUP_NAME(name_) name_,
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# include "nsFrameStateBits.h"
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# undef FRAME_STATE_GROUP_NAME
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LENGTH
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};
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void DebugVerifyFrameStateBits() {
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// Build an array of all of the bits used by each group. While
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// building this we assert that a bit isn't used multiple times within
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// the same group.
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nsFrameState bitsUsedPerGroup[size_t(FrameStateGroupId::LENGTH)] = {
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nsFrameState(0)};
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# define FRAME_STATE_BIT(group_, value_, name_) \
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{ \
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auto bit = NS_FRAME_STATE_BIT(value_); \
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size_t group = size_t(FrameStateGroupId::group_); \
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MOZ_ASSERT(!(bitsUsedPerGroup[group] & bit), #name_ \
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" must not use a bit already declared within its group"); \
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bitsUsedPerGroup[group] |= bit; \
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}
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# include "nsFrameStateBits.h"
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# undef FRAME_STATE_BIT
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// FIXME: Can we somehow check across the groups as well??? In other
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// words, find the pairs of groups that could be used on the same
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// frame (Generic paired with everything else, and a few other pairs),
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// and check that we don't have bits in common between those pairs.
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}
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#endif
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} // namespace mozilla
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