зеркало из https://github.com/mozilla/gecko-dev.git
Use logical text layout API in nsLineLayout. Bug 789096, r=jfkthame
This commit is contained in:
Simon Montagu
Родитель
e4ba24146f
Коммит
2110ef8dc6
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@ -1228,8 +1228,10 @@ nsBidiPresUtils::ResolveParagraphWithinBlock(nsBlockFrame* aBlockFrame,
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}
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void
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nsBidiPresUtils::ReorderFrames(nsIFrame* aFirstFrameOnLine,
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int32_t aNumFramesOnLine)
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nsBidiPresUtils::ReorderFrames(nsIFrame* aFirstFrameOnLine,
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int32_t aNumFramesOnLine,
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WritingMode aLineWM,
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nscoord& aLineWidth)
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{
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// If this line consists of a line frame, reorder the line frame's children.
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if (aFirstFrameOnLine->GetType() == nsGkAtoms::lineFrame) {
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@ -1242,7 +1244,7 @@ nsBidiPresUtils::ReorderFrames(nsIFrame* aFirstFrameOnLine,
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}
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BidiLineData bld(aFirstFrameOnLine, aNumFramesOnLine);
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RepositionInlineFrames(&bld, aFirstFrameOnLine);
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RepositionInlineFrames(&bld, aFirstFrameOnLine, aLineWM, aLineWidth);
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}
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nsIFrame*
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@ -1282,22 +1284,20 @@ nsBidiPresUtils::GetFrameBaseLevel(nsIFrame* aFrame)
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}
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void
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nsBidiPresUtils::IsLeftOrRightMost(nsIFrame* aFrame,
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nsContinuationStates* aContinuationStates,
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bool& aIsLeftMost /* out */,
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bool& aIsRightMost /* out */)
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nsBidiPresUtils::IsFirstOrLast(nsIFrame* aFrame,
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nsContinuationStates* aContinuationStates,
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bool& aIsFirst /* out */,
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bool& aIsLast /* out */)
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{
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const nsStyleVisibility* vis = aFrame->StyleVisibility();
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bool isLTR = (NS_STYLE_DIRECTION_LTR == vis->mDirection);
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/*
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* Since we lay out frames from left to right (in both LTR and RTL), visiting a
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* frame with 'mFirstVisualFrame == nullptr', means it's the first appearance of
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* one of its continuation chain frames on the line.
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* To determine if it's the last visual frame of its continuation chain on the line
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* or not, we count the number of frames of the chain on the line, and then reduce
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* it when we lay out a frame of the chain. If this value becomes 1 it means
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* that it's the last visual frame of its continuation chain on this line.
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* Since we lay out frames in the line's direction, visiting a frame with
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* 'mFirstVisualFrame == nullptr', means it's the first appearance of one
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* of its continuation chain frames on the line.
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* To determine if it's the last visual frame of its continuation chain on
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* the line or not, we count the number of frames of the chain on the line,
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* and then reduce it when we lay out a frame of the chain. If this value
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* becomes 1 it means that it's the last visual frame of its continuation
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* chain on this line.
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*/
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nsFrameContinuationState* frameState = aContinuationStates->GetEntry(aFrame);
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@ -1334,20 +1334,18 @@ nsBidiPresUtils::IsLeftOrRightMost(nsIFrame* aFrame,
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}
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frameState->mHasContOnNextLines = (frame != nullptr);
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aIsLeftMost = isLTR ? !frameState->mHasContOnPrevLines
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: !frameState->mHasContOnNextLines;
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aIsFirst = !frameState->mHasContOnPrevLines;
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firstFrameState = frameState;
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} else {
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// aFrame is not the first visual frame of its continuation chain
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aIsLeftMost = false;
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aIsFirst = false;
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firstFrameState = aContinuationStates->GetEntry(frameState->mFirstVisualFrame);
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}
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aIsRightMost = (firstFrameState->mFrameCount == 1) &&
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(isLTR ? !firstFrameState->mHasContOnNextLines
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: !firstFrameState->mHasContOnPrevLines);
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aIsLast = (firstFrameState->mFrameCount == 1 &&
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!firstFrameState->mHasContOnNextLines);
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if ((aIsLeftMost || aIsRightMost) &&
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if ((aIsFirst || aIsLast) &&
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(aFrame->GetStateBits() & NS_FRAME_PART_OF_IBSPLIT)) {
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// For ib splits, don't treat anything except the last part as
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// endmost or anything except the first part as startmost.
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@ -1355,19 +1353,11 @@ nsBidiPresUtils::IsLeftOrRightMost(nsIFrame* aFrame,
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nsIFrame* firstContinuation = aFrame->FirstContinuation();
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if (firstContinuation->FrameIsNonLastInIBSplit()) {
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// We are not endmost
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if (isLTR) {
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aIsRightMost = false;
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} else {
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aIsLeftMost = false;
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}
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aIsLast = false;
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}
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if (firstContinuation->FrameIsNonFirstInIBSplit()) {
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// We are not startmost
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if (isLTR) {
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aIsLeftMost = false;
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} else {
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aIsRightMost = false;
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}
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aIsFirst = false;
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}
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}
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@ -1376,29 +1366,39 @@ nsBidiPresUtils::IsLeftOrRightMost(nsIFrame* aFrame,
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}
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void
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nsBidiPresUtils::RepositionFrame(nsIFrame* aFrame,
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bool aIsOddLevel,
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nscoord& aLeft,
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nsContinuationStates* aContinuationStates)
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nsBidiPresUtils::RepositionFrame(nsIFrame* aFrame,
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bool aIsEvenLevel,
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nscoord& aStart,
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nsContinuationStates* aContinuationStates,
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WritingMode aLineWM,
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nscoord& aLineWidth)
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{
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if (!aFrame)
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return;
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bool isLeftMost, isRightMost;
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IsLeftOrRightMost(aFrame,
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aContinuationStates,
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isLeftMost /* out */,
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isRightMost /* out */);
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bool isFirst, isLast;
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IsFirstOrLast(aFrame,
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aContinuationStates,
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isFirst /* out */,
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isLast /* out */);
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WritingMode frameWM = aFrame->GetWritingMode();
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nsInlineFrame* testFrame = do_QueryFrame(aFrame);
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//XXX temporary until GetSkipSides is logicalized
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bool isLeftMost = false, isRightMost = false;
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if (testFrame) {
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aFrame->AddStateBits(NS_INLINE_FRAME_BIDI_VISUAL_STATE_IS_SET);
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isLeftMost = ((isFirst && frameWM.IsBidiLTR()) ||
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(isLast && !frameWM.IsBidiLTR()));
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if (isLeftMost)
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aFrame->AddStateBits(NS_INLINE_FRAME_BIDI_VISUAL_IS_LEFT_MOST);
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else
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aFrame->RemoveStateBits(NS_INLINE_FRAME_BIDI_VISUAL_IS_LEFT_MOST);
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isRightMost = ((isLast && frameWM.IsBidiLTR()) ||
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(isFirst && !frameWM.IsBidiLTR()));
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if (isRightMost)
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aFrame->AddStateBits(NS_INLINE_FRAME_BIDI_VISUAL_IS_RIGHT_MOST);
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else
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@ -1407,26 +1407,30 @@ nsBidiPresUtils::RepositionFrame(nsIFrame* aFrame,
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// This method is called from nsBlockFrame::PlaceLine via the call to
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// bidiUtils->ReorderFrames, so this is guaranteed to be after the inlines
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// have been reflowed, which is required for GetUsedMargin/Border/Padding
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nsMargin margin = aFrame->GetUsedMargin();
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if (isLeftMost)
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aLeft += margin.left;
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LogicalMargin margin(frameWM, aFrame->GetUsedMargin());
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if (isFirst) {
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aStart += margin.IStart(frameWM);
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}
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nscoord start = aLeft;
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nscoord start = aStart;
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nscoord frameWidth = aFrame->GetSize().width;
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if (!IsBidiLeaf(aFrame))
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{
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nscoord x = 0;
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nsMargin borderPadding = aFrame->GetUsedBorderAndPadding();
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if (isLeftMost) {
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x += borderPadding.left;
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nscoord iCoord = 0;
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LogicalMargin borderPadding(frameWM, aFrame->GetUsedBorderAndPadding());
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if (isFirst) {
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iCoord += borderPadding.IStart(frameWM);
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}
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// If aIsOddLevel is true, so we need to traverse the child list
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// in reverse order, to make it O(n) we store the list locally and
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// iterate the list reversely
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// If the resolved direction of the container is different from the
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// direction of the frame, we need to traverse the child list in reverse
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// order, to make it O(n) we store the list locally and iterate the list
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// in reverse
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bool reverseOrder = aIsEvenLevel != frameWM.IsBidiLTR();
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nsTArray<nsIFrame*> childList;
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nsIFrame *frame = aFrame->GetFirstPrincipalChild();
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if (frame && aIsOddLevel) {
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if (frame && reverseOrder) {
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childList.AppendElement((nsIFrame*)nullptr);
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while (frame) {
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childList.AppendElement(frame);
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@ -1439,27 +1443,33 @@ nsBidiPresUtils::RepositionFrame(nsIFrame* aFrame,
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int32_t index = 0;
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while (frame) {
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RepositionFrame(frame,
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aIsOddLevel,
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x,
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aContinuationStates);
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aIsEvenLevel,
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iCoord,
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aContinuationStates,
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frameWM,
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frameWidth);
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index++;
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frame = aIsOddLevel ?
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frame = reverseOrder ?
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childList[childList.Length() - index - 1] :
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frame->GetNextSibling();
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}
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if (isRightMost) {
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x += borderPadding.right;
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if (isLast) {
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iCoord += borderPadding.IEnd(frameWM);
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}
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aLeft += x;
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aStart += iCoord;
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} else {
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aLeft += aFrame->GetSize().width;
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aStart += frameWidth;
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}
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nsRect rect = aFrame->GetRect();
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aFrame->SetRect(nsRect(start, rect.y, aLeft - start, rect.height));
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if (isRightMost)
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aLeft += margin.right;
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LogicalRect logicalRect(aLineWM, aFrame->GetRect(), aLineWidth);
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logicalRect.IStart(aLineWM) = start;
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logicalRect.ISize(aLineWM) = aStart - start;
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aFrame->SetRect(aLineWM, logicalRect, aLineWidth);
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if (isLast) {
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aStart += margin.IEnd(frameWM);
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}
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}
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void
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@ -1484,21 +1494,23 @@ nsBidiPresUtils::InitContinuationStates(nsIFrame* aFrame,
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void
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nsBidiPresUtils::RepositionInlineFrames(BidiLineData *aBld,
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nsIFrame* aFirstChild)
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nsIFrame* aFirstChild,
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WritingMode aLineWM,
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nscoord& aLineWidth)
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{
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const nsStyleVisibility* vis = aFirstChild->StyleVisibility();
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bool isLTR = (NS_STYLE_DIRECTION_LTR == vis->mDirection);
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nscoord leftSpace = 0;
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nscoord startSpace = 0;
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// This method is called from nsBlockFrame::PlaceLine via the call to
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// bidiUtils->ReorderFrames, so this is guaranteed to be after the inlines
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// have been reflowed, which is required for GetUsedMargin/Border/Padding
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nsMargin margin = aFirstChild->GetUsedMargin();
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WritingMode frameWM = aFirstChild->GetWritingMode();
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LogicalMargin margin(frameWM, aFirstChild->GetUsedMargin());
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if (!aFirstChild->GetPrevContinuation() &&
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!aFirstChild->FrameIsNonFirstInIBSplit())
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leftSpace = isLTR ? margin.left : margin.right;
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startSpace = margin.IStart(frameWM);
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nscoord left = aFirstChild->GetPosition().x - leftSpace;
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nscoord start = LogicalRect(aLineWM, aFirstChild->GetRect(),
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aLineWidth).IStart(aLineWM) - startSpace;
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nsIFrame* frame;
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int32_t count = aBld->mVisualFrames.Length();
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int32_t index;
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@ -1511,13 +1523,25 @@ nsBidiPresUtils::RepositionInlineFrames(BidiLineData *aBld,
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}
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// Reposition frames in visual order
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for (index = 0; index < count; index++) {
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int32_t step, limit;
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if (aLineWM.IsBidiLTR()) {
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index = 0;
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step = 1;
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limit = count;
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} else {
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index = count - 1;
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step = -1;
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limit = -1;
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}
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for (; index != limit; index += step) {
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frame = aBld->VisualFrameAt(index);
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RepositionFrame(frame,
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(aBld->mLevels[aBld->mIndexMap[index]] & 1),
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left,
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&continuationStates);
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} // for
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!(aBld->mLevels[aBld->mIndexMap[index]] & 1),
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start,
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&continuationStates,
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aLineWM,
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aLineWidth);
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}
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}
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bool
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@ -27,6 +27,7 @@ class nsRenderingContext;
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class nsBlockInFlowLineIterator;
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class nsStyleContext;
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template<class T> class nsTHashtable;
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namespace mozilla { class WritingMode; }
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/**
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* A structure representing some continuation state for each frame on the line,
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@ -159,7 +160,9 @@ public:
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* @lina 05/02/2000
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*/
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static void ReorderFrames(nsIFrame* aFirstFrameOnLine,
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int32_t aNumFramesOnLine);
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int32_t aNumFramesOnLine,
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mozilla::WritingMode aLineWM,
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nscoord& aLineWidth);
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/**
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* Format Unicode text, taking into account bidi capabilities
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@ -377,24 +380,27 @@ private:
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nsBlockInFlowLineIterator* aLineIter,
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nsIFrame* aCurrentFrame,
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BidiParagraphData* aBpd);
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/*
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* Position aFrame and it's descendants to their visual places. Also if aFrame
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* is not leaf, resize it to embrace it's children.
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* Position aFrame and its descendants to their visual places. Also if aFrame
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* is not leaf, resize it to embrace its children.
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*
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* @param aFrame The frame which itself and its children are going
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* to be repositioned
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* @param aIsOddLevel TRUE means the embedding level of this frame is odd
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* @param[in,out] aLeft IN value is the starting position of aFrame(without
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* considering its left margin)
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* OUT value will be the ending position of aFrame(after
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* adding its right margin)
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* @param aFrame The frame which itself and its children are
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* going to be repositioned
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* @param aIsEvenLevel TRUE means the embedding level of this frame
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* is even (LTR)
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* @param[in,out] aStart IN value is the starting position of aFrame
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* (without considering its inline-start margin)
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* OUT value will be the ending position of aFrame
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* (after adding its inline-end margin)
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* @param aContinuationStates A map from nsIFrame* to nsFrameContinuationState
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*/
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static void RepositionFrame(nsIFrame* aFrame,
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bool aIsOddLevel,
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nscoord& aLeft,
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nsContinuationStates* aContinuationStates);
|
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bool aIsEvenLevel,
|
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nscoord& aStart,
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nsContinuationStates* aContinuationStates,
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mozilla::WritingMode aLineWM,
|
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nscoord& aLineWidth);
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/*
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* Initialize the continuation state(nsFrameContinuationState) to
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@ -422,10 +428,10 @@ private:
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* @param[out] aIsLeftMost TRUE means aFrame is leftmost frame or continuation
|
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* @param[out] aIsRightMost TRUE means aFrame is rightmost frame or continuation
|
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*/
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static void IsLeftOrRightMost(nsIFrame* aFrame,
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nsContinuationStates* aContinuationStates,
|
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bool& aIsLeftMost /* out */,
|
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bool& aIsRightMost /* out */);
|
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static void IsFirstOrLast(nsIFrame* aFrame,
|
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nsContinuationStates* aContinuationStates,
|
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bool& aIsFirst /* out */,
|
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bool& aIsLast /* out */);
|
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|
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/**
|
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* Adjust frame positions following their visual order
|
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|
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@ -435,7 +441,9 @@ private:
|
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* @lina 04/11/2000
|
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*/
|
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static void RepositionInlineFrames(BidiLineData* aBld,
|
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nsIFrame* aFirstChild);
|
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nsIFrame* aFirstChild,
|
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mozilla::WritingMode aLineWM,
|
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nscoord& aLineWidth);
|
||||
|
||||
/**
|
||||
* Helper method for Resolve()
|
||||
|
|
|
|||
|
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@ -833,6 +833,12 @@ public:
|
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*this : LogicalMargin(aToMode, GetPhysicalMargin(aFromMode));
|
||||
}
|
||||
|
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bool IsEmpty() const
|
||||
{
|
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return (mMargin.left == 0 && mMargin.top == 0 &&
|
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mMargin.right == 0 && mMargin.bottom == 0);
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||||
}
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private:
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friend class LogicalRect;
|
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@ -1123,6 +1129,17 @@ public:
|
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return aWritingMode.IsVertical() ? mRect.XMost() : mRect.YMost();
|
||||
}
|
||||
|
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bool IsEmpty() const
|
||||
{
|
||||
return (mRect.x == 0 && mRect.y == 0 &&
|
||||
mRect.width == 0 && mRect.height == 0);
|
||||
}
|
||||
|
||||
bool IsZeroSize() const
|
||||
{
|
||||
return (mRect.width == 0 && mRect.height == 0);
|
||||
}
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||||
|
||||
/* XXX are these correct?
|
||||
nscoord ILeft(WritingMode aWritingMode) const
|
||||
{
|
||||
|
|
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|||
|
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@ -1450,7 +1450,7 @@ nsBlockFrame::ComputeFinalSize(const nsHTMLReflowState& aReflowState,
|
|||
*aBottomEdgeOfChildren = bottomEdgeOfChildren;
|
||||
|
||||
#ifdef DEBUG_blocks
|
||||
if (CRAZY_WIDTH(aMetrics.Width()) || CRAZY_HEIGHT(aMetrics.Height())) {
|
||||
if (CRAZY_SIZE(aMetrics.Width()) || CRAZY_SIZE(aMetrics.Height())) {
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||||
ListTag(stdout);
|
||||
printf(": WARNING: desired:%d,%d\n", aMetrics.Width(), aMetrics.Height());
|
||||
}
|
||||
|
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@ -3448,35 +3448,32 @@ nsBlockFrame::DoReflowInlineFrames(nsBlockReflowState& aState,
|
|||
this, aFloatAvailableSpace.mHasFloats);
|
||||
#endif
|
||||
|
||||
nscoord x = aFloatAvailableSpace.mRect.x;
|
||||
nscoord availWidth = aFloatAvailableSpace.mRect.width;
|
||||
nscoord availHeight;
|
||||
WritingMode wm = GetWritingMode(aLine->mFirstChild);
|
||||
nscoord lineWidth = aFloatAvailableSpace.mRect.width +
|
||||
aState.BorderPadding().LeftRight();
|
||||
LogicalRect lineRect(wm, aFloatAvailableSpace.mRect, lineWidth);
|
||||
|
||||
nscoord iStart = lineRect.IStart(wm);
|
||||
|
||||
nscoord availISize = lineRect.ISize(wm);
|
||||
nscoord availBSize;
|
||||
if (aState.GetFlag(BRS_UNCONSTRAINEDHEIGHT)) {
|
||||
availHeight = NS_UNCONSTRAINEDSIZE;
|
||||
availBSize = NS_UNCONSTRAINEDSIZE;
|
||||
}
|
||||
else {
|
||||
/* XXX get the height right! */
|
||||
availHeight = aFloatAvailableSpace.mRect.height;
|
||||
availBSize = lineRect.BSize(wm);
|
||||
}
|
||||
|
||||
// Make sure to enable resize optimization before we call BeginLineReflow
|
||||
// because it might get disabled there
|
||||
aLine->EnableResizeReflowOptimization();
|
||||
|
||||
// For unicode-bidi: plaintext, we need to get the direction of the line from
|
||||
// the resolved paragraph level of the first frame on the line, not the block
|
||||
// frame, because the block frame could be split by hard line breaks into
|
||||
// multiple paragraphs with different base direction
|
||||
uint8_t direction =
|
||||
(StyleTextReset()->mUnicodeBidi & NS_STYLE_UNICODE_BIDI_PLAINTEXT) ?
|
||||
nsBidiPresUtils::GetFrameBaseLevel(aLine->mFirstChild) & 1 :
|
||||
StyleVisibility()->mDirection;
|
||||
|
||||
aLineLayout.BeginLineReflow(x, aState.mY,
|
||||
availWidth, availHeight,
|
||||
aLineLayout.BeginLineReflow(iStart, aState.mY,
|
||||
availISize, availBSize,
|
||||
aFloatAvailableSpace.mHasFloats,
|
||||
false, /*XXX isTopOfPage*/
|
||||
direction);
|
||||
wm, lineWidth);
|
||||
|
||||
aState.SetFlag(BRS_LINE_LAYOUT_EMPTY, false);
|
||||
|
||||
|
|
@ -4052,7 +4049,7 @@ nsBlockFrame::PlaceLine(nsBlockReflowState& aState,
|
|||
bool addedBullet = false;
|
||||
if (HasOutsideBullet() &&
|
||||
((aLine == mLines.front() &&
|
||||
(!aLineLayout.IsZeroHeight() || (aLine == mLines.back()))) ||
|
||||
(!aLineLayout.IsZeroBSize() || (aLine == mLines.back()))) ||
|
||||
(mLines.front() != mLines.back() &&
|
||||
0 == mLines.front()->mBounds.height &&
|
||||
aLine == mLines.begin().next()))) {
|
||||
|
|
@ -4064,7 +4061,7 @@ nsBlockFrame::PlaceLine(nsBlockReflowState& aState,
|
|||
aLineLayout.AddBulletFrame(bullet, metrics);
|
||||
addedBullet = true;
|
||||
}
|
||||
aLineLayout.VerticalAlignLine();
|
||||
aLineLayout.BlockDirAlignLine();
|
||||
|
||||
// We want to compare to the available space that we would have had in
|
||||
// the line's height *before* we placed any floats in the line itself.
|
||||
|
|
@ -4092,9 +4089,9 @@ nsBlockFrame::PlaceLine(nsBlockReflowState& aState,
|
|||
#ifdef DEBUG
|
||||
{
|
||||
static nscoord lastHeight = 0;
|
||||
if (CRAZY_HEIGHT(aLine->mBounds.y)) {
|
||||
if (CRAZY_SIZE(aLine->mBounds.y)) {
|
||||
lastHeight = aLine->mBounds.y;
|
||||
if (abs(aLine->mBounds.y - lastHeight) > CRAZY_H/10) {
|
||||
if (abs(aLine->mBounds.y - lastHeight) > CRAZY_COORD/10) {
|
||||
nsFrame::ListTag(stdout);
|
||||
printf(": line=%p y=%d line.bounds.height=%d\n",
|
||||
static_cast<void*>(aLine.get()),
|
||||
|
|
@ -4125,20 +4122,9 @@ nsBlockFrame::PlaceLine(nsBlockReflowState& aState,
|
|||
NS_STYLE_TEXT_ALIGN_JUSTIFY == styleText->mTextAlign) &&
|
||||
(aLineLayout.GetLineEndsInBR() ||
|
||||
IsLastLine(aState, aLine)));
|
||||
aLineLayout.HorizontalAlignFrames(aLine->mBounds, isLastLine);
|
||||
// XXX: not only bidi: right alignment can be broken after
|
||||
// RelativePositionFrames!!!
|
||||
// XXXldb Is something here considering relatively positioned frames at
|
||||
// other than their original positions?
|
||||
#ifdef IBMBIDI
|
||||
// XXXldb Why don't we do this earlier?
|
||||
if (aState.mPresContext->BidiEnabled()) {
|
||||
if (!aState.mPresContext->IsVisualMode() ||
|
||||
StyleVisibility()->mDirection == NS_STYLE_DIRECTION_RTL) {
|
||||
nsBidiPresUtils::ReorderFrames(aLine->mFirstChild, aLine->GetChildCount());
|
||||
} // not visual mode
|
||||
} // bidi enabled
|
||||
#endif // IBMBIDI
|
||||
|
||||
aLineLayout.InlineDirAlignFrames(aLine->mBounds, isLastLine,
|
||||
aLine->GetChildCount());
|
||||
|
||||
// From here on, pfd->mBounds rectangles are incorrect because bidi
|
||||
// might have moved frames around!
|
||||
|
|
|
|||
|
|
@ -262,7 +262,7 @@ nsBlockReflowContext::ReflowBlock(const nsRect& aSpace,
|
|||
|
||||
#ifdef DEBUG
|
||||
if (!NS_INLINE_IS_BREAK_BEFORE(aFrameReflowStatus)) {
|
||||
if (CRAZY_WIDTH(mMetrics.Width()) || CRAZY_HEIGHT(mMetrics.Height())) {
|
||||
if (CRAZY_SIZE(mMetrics.Width()) || CRAZY_SIZE(mMetrics.Height())) {
|
||||
printf("nsBlockReflowContext: ");
|
||||
nsFrame::ListTag(stdout, mFrame);
|
||||
printf(" metrics=%d,%d!\n", mMetrics.Width(), mMetrics.Height());
|
||||
|
|
|
|||
|
|
@ -34,11 +34,8 @@ class FramePropertyTable;
|
|||
// dependency on nsDeviceContext.h. It doesn't matter if it's a
|
||||
// little off.
|
||||
#ifdef DEBUG
|
||||
#define CRAZY_W (1000000*60)
|
||||
#define CRAZY_H CRAZY_W
|
||||
|
||||
#define CRAZY_WIDTH(_x) (((_x) < -CRAZY_W) || ((_x) > CRAZY_W))
|
||||
#define CRAZY_HEIGHT(_y) (((_y) < -CRAZY_H) || ((_y) > CRAZY_H))
|
||||
#define CRAZY_COORD (1000000*60)
|
||||
#define CRAZY_SIZE(_x) (((_x) < -CRAZY_COORD) || ((_x) > CRAZY_COORD))
|
||||
#endif
|
||||
|
||||
/**
|
||||
|
|
|
|||
|
|
@ -188,21 +188,10 @@ nsFirstLetterFrame::Reflow(nsPresContext* aPresContext,
|
|||
nsHTMLReflowState rs(aPresContext, aReflowState, kid, availSize);
|
||||
nsLineLayout ll(aPresContext, nullptr, &aReflowState, nullptr);
|
||||
|
||||
// For unicode-bidi: plaintext, we need to get the direction of the line
|
||||
// from the resolved paragraph level of the child, not the block frame,
|
||||
// because the block frame could be split by hard line breaks into
|
||||
// multiple paragraphs with different base direction
|
||||
uint8_t direction;
|
||||
nsIFrame* containerFrame = ll.LineContainerFrame();
|
||||
if (containerFrame->StyleTextReset()->mUnicodeBidi &
|
||||
NS_STYLE_UNICODE_BIDI_PLAINTEXT) {
|
||||
FramePropertyTable *propTable = aPresContext->PropertyTable();
|
||||
direction = NS_PTR_TO_INT32(propTable->Get(kid, BaseLevelProperty())) & 1;
|
||||
} else {
|
||||
direction = containerFrame->StyleVisibility()->mDirection;
|
||||
}
|
||||
ll.BeginLineReflow(bp.left, bp.top, availSize.width, NS_UNCONSTRAINEDSIZE,
|
||||
false, true, direction);
|
||||
false, true,
|
||||
ll.LineContainerFrame()->GetWritingMode(kid),
|
||||
aReflowState.AvailableWidth());
|
||||
rs.mLineLayout = ≪
|
||||
ll.SetInFirstLetter(true);
|
||||
ll.SetFirstLetterStyleOK(true);
|
||||
|
|
|
|||
|
|
@ -975,6 +975,20 @@ nsIFrame::GetPaddingRect() const
|
|||
return GetPaddingRectRelativeToSelf() + GetPosition();
|
||||
}
|
||||
|
||||
WritingMode
|
||||
nsIFrame::GetWritingMode(nsIFrame* aSubFrame) const
|
||||
{
|
||||
WritingMode writingMode = GetWritingMode();
|
||||
|
||||
if (!writingMode.IsVertical() &&
|
||||
(StyleTextReset()->mUnicodeBidi & NS_STYLE_UNICODE_BIDI_PLAINTEXT)) {
|
||||
nsBidiLevel frameLevel = nsBidiPresUtils::GetFrameBaseLevel(aSubFrame);
|
||||
writingMode.SetDirectionFromBidiLevel(frameLevel);
|
||||
}
|
||||
|
||||
return writingMode;
|
||||
}
|
||||
|
||||
nsRect
|
||||
nsIFrame::GetMarginRectRelativeToSelf() const
|
||||
{
|
||||
|
|
|
|||
|
|
@ -672,6 +672,15 @@ public:
|
|||
return mozilla::WritingMode(StyleVisibility());
|
||||
}
|
||||
|
||||
/**
|
||||
* Get the writing mode of this frame, but if it is styled with
|
||||
* unicode-bidi: plaintext, reset the direction to the resolved paragraph
|
||||
* level of the given subframe (typically the first frame on the line),
|
||||
* not this frame's writing mode, because the container frame could be split
|
||||
* by hard line breaks into multiple paragraphs with different base direction.
|
||||
*/
|
||||
mozilla::WritingMode GetWritingMode(nsIFrame* aSubFrame) const;
|
||||
|
||||
/**
|
||||
* Bounding rect of the frame. The values are in app units, and the origin is
|
||||
* relative to the upper-left of the geometric parent. The size includes the
|
||||
|
|
|
|||
|
|
@ -487,23 +487,21 @@ nsInlineFrame::ReflowFrames(nsPresContext* aPresContext,
|
|||
nsLineLayout* lineLayout = aReflowState.mLineLayout;
|
||||
bool inFirstLine = aReflowState.mLineLayout->GetInFirstLine();
|
||||
RestyleManager* restyleManager = aPresContext->RestyleManager();
|
||||
bool ltr = (NS_STYLE_DIRECTION_LTR == aReflowState.mStyleVisibility->mDirection);
|
||||
nscoord leftEdge = 0;
|
||||
WritingMode wm = aReflowState.GetWritingMode();
|
||||
nscoord startEdge = 0;
|
||||
// Don't offset by our start borderpadding if we have a prev continuation or
|
||||
// if we're in a part of an {ib} split other than the first one.
|
||||
if (!GetPrevContinuation() && !FrameIsNonFirstInIBSplit()) {
|
||||
leftEdge = ltr ? aReflowState.ComputedPhysicalBorderPadding().left
|
||||
: aReflowState.ComputedPhysicalBorderPadding().right;
|
||||
startEdge = aReflowState.ComputedLogicalBorderPadding().IStart(wm);
|
||||
}
|
||||
nscoord availableWidth = aReflowState.AvailableWidth();
|
||||
NS_ASSERTION(availableWidth != NS_UNCONSTRAINEDSIZE,
|
||||
nscoord availableISize = aReflowState.AvailableISize();
|
||||
NS_ASSERTION(availableISize != NS_UNCONSTRAINEDSIZE,
|
||||
"should no longer use available widths");
|
||||
// Subtract off left and right border+padding from availableWidth
|
||||
availableWidth -= leftEdge;
|
||||
availableWidth -= ltr ? aReflowState.ComputedPhysicalBorderPadding().right
|
||||
: aReflowState.ComputedPhysicalBorderPadding().left;
|
||||
lineLayout->BeginSpan(this, &aReflowState, leftEdge,
|
||||
leftEdge + availableWidth, &mBaseline);
|
||||
// Subtract off inline axis border+padding from availableISize
|
||||
availableISize -= startEdge;
|
||||
availableISize -= aReflowState.ComputedLogicalBorderPadding().IEnd(wm);
|
||||
lineLayout->BeginSpan(this, &aReflowState, startEdge,
|
||||
startEdge + availableISize, &mBaseline);
|
||||
|
||||
// First reflow our principal children.
|
||||
nsIFrame* frame = mFrames.FirstChild();
|
||||
|
|
@ -646,7 +644,7 @@ nsInlineFrame::ReflowFrames(nsPresContext* aPresContext,
|
|||
// line-height calculations. However, continuations of an inline
|
||||
// that are empty we force to empty so that things like collapsed
|
||||
// whitespace in an inline element don't affect the line-height.
|
||||
aMetrics.Width() = lineLayout->EndSpan(this);
|
||||
aMetrics.ISize() = lineLayout->EndSpan(this);
|
||||
|
||||
// Compute final width.
|
||||
|
||||
|
|
@ -654,8 +652,7 @@ nsInlineFrame::ReflowFrames(nsPresContext* aPresContext,
|
|||
// continuation or if we're in a part of an {ib} split other than the first
|
||||
// one.
|
||||
if (!GetPrevContinuation() && !FrameIsNonFirstInIBSplit()) {
|
||||
aMetrics.Width() += ltr ? aReflowState.ComputedPhysicalBorderPadding().left
|
||||
: aReflowState.ComputedPhysicalBorderPadding().right;
|
||||
aMetrics.ISize() += aReflowState.ComputedLogicalBorderPadding().IStart(wm);
|
||||
}
|
||||
|
||||
/*
|
||||
|
|
@ -668,8 +665,7 @@ nsInlineFrame::ReflowFrames(nsPresContext* aPresContext,
|
|||
if (NS_FRAME_IS_COMPLETE(aStatus) &&
|
||||
!LastInFlow()->GetNextContinuation() &&
|
||||
!FrameIsNonLastInIBSplit()) {
|
||||
aMetrics.Width() += ltr ? aReflowState.ComputedPhysicalBorderPadding().right
|
||||
: aReflowState.ComputedPhysicalBorderPadding().left;
|
||||
aMetrics.Width() += aReflowState.ComputedLogicalBorderPadding().IEnd(wm);
|
||||
}
|
||||
|
||||
nsRefPtr<nsFontMetrics> fm;
|
||||
|
|
|
|||
Разница между файлами не показана из-за своего большого размера
Загрузить разницу
|
|
@ -21,6 +21,7 @@
|
|||
#include "nsBlockReflowState.h"
|
||||
#include "plarena.h"
|
||||
#include "gfxTypes.h"
|
||||
#include "WritingModes.h"
|
||||
|
||||
class nsFloatManager;
|
||||
struct nsStyleText;
|
||||
|
|
@ -33,10 +34,10 @@ public:
|
|||
const nsLineList::iterator* aLine);
|
||||
~nsLineLayout();
|
||||
|
||||
void Init(nsBlockReflowState* aState, nscoord aMinLineHeight,
|
||||
void Init(nsBlockReflowState* aState, nscoord aMinLineBSize,
|
||||
int32_t aLineNumber) {
|
||||
mBlockRS = aState;
|
||||
mMinLineHeight = aMinLineHeight;
|
||||
mMinLineBSize = aMinLineBSize;
|
||||
mLineNumber = aLineNumber;
|
||||
}
|
||||
|
||||
|
|
@ -44,11 +45,12 @@ public:
|
|||
return mLineNumber;
|
||||
}
|
||||
|
||||
void BeginLineReflow(nscoord aX, nscoord aY,
|
||||
nscoord aWidth, nscoord aHeight,
|
||||
void BeginLineReflow(nscoord aICoord, nscoord aBCoord,
|
||||
nscoord aISize, nscoord aBSize,
|
||||
bool aImpactedByFloats,
|
||||
bool aIsTopOfPage,
|
||||
uint8_t aDirection);
|
||||
mozilla::WritingMode aWritingMode,
|
||||
nscoord aContainerWidth);
|
||||
|
||||
void EndLineReflow();
|
||||
|
||||
|
|
@ -73,7 +75,7 @@ public:
|
|||
|
||||
void SplitLineTo(int32_t aNewCount);
|
||||
|
||||
bool IsZeroHeight();
|
||||
bool IsZeroBSize();
|
||||
|
||||
// Reflows the frame and returns the reflow status. aPushedFrame is true
|
||||
// if the frame is pushed to the next line because it doesn't fit
|
||||
|
|
@ -88,11 +90,12 @@ public:
|
|||
PushFrame(aFrame);
|
||||
}
|
||||
|
||||
void VerticalAlignLine();
|
||||
void BlockDirAlignLine();
|
||||
|
||||
bool TrimTrailingWhiteSpace();
|
||||
|
||||
void HorizontalAlignFrames(nsRect& aLineBounds, bool aIsLastLine);
|
||||
void InlineDirAlignFrames(nsRect& aLineBounds, bool aIsLastLine,
|
||||
int32_t aFrameCount);
|
||||
|
||||
/**
|
||||
* Handle all the relative positioning in the line, compute the
|
||||
|
|
@ -303,10 +306,10 @@ public:
|
|||
* the right edge for RTL blocks and from the left edge for LTR blocks.
|
||||
* In other words, the current frame's distance from the line container's
|
||||
* start content edge is:
|
||||
* <code>GetCurrentFrameXDistanceFromBlock() - lineContainer->GetUsedBorderAndPadding().left</code>
|
||||
* <code>GetCurrentFrameInlineDistanceFromBlock() - lineContainer->GetUsedBorderAndPadding().left</code>
|
||||
* Note the use of <code>.left</code> for both LTR and RTL line containers.
|
||||
*/
|
||||
nscoord GetCurrentFrameXDistanceFromBlock();
|
||||
nscoord GetCurrentFrameInlineDistanceFromBlock();
|
||||
|
||||
protected:
|
||||
// This state is constant for a given block frame doing line layout
|
||||
|
|
@ -326,14 +329,22 @@ protected:
|
|||
|
||||
// Per-frame data recorded by the line-layout reflow logic. This
|
||||
// state is the state needed to post-process the line after reflow
|
||||
// has completed (vertical alignment, horizontal alignment,
|
||||
// has completed (block-direction alignment, inline-direction alignment,
|
||||
// justification and relative positioning).
|
||||
|
||||
struct PerSpanData;
|
||||
struct PerFrameData;
|
||||
friend struct PerSpanData;
|
||||
friend struct PerFrameData;
|
||||
struct PerFrameData {
|
||||
struct PerFrameData
|
||||
{
|
||||
PerFrameData(mozilla::WritingMode aWritingMode)
|
||||
: mBounds(aWritingMode)
|
||||
, mMargin(aWritingMode)
|
||||
, mBorderPadding(aWritingMode)
|
||||
, mOffsets(aWritingMode)
|
||||
{}
|
||||
|
||||
// link to next/prev frame in same span
|
||||
PerFrameData* mNext;
|
||||
PerFrameData* mPrev;
|
||||
|
|
@ -346,20 +357,23 @@ protected:
|
|||
|
||||
// From metrics
|
||||
nscoord mAscent;
|
||||
nsRect mBounds;
|
||||
// note that mBounds is a logical rect in the *line*'s writing mode.
|
||||
// When setting frame coordinates, we have to convert to the frame's
|
||||
// writing mode
|
||||
mozilla::LogicalRect mBounds;
|
||||
nsOverflowAreas mOverflowAreas;
|
||||
|
||||
// From reflow-state
|
||||
nsMargin mMargin;
|
||||
nsMargin mBorderPadding;
|
||||
nsMargin mOffsets;
|
||||
mozilla::LogicalMargin mMargin;
|
||||
mozilla::LogicalMargin mBorderPadding;
|
||||
mozilla::LogicalMargin mOffsets;
|
||||
|
||||
// state for text justification
|
||||
int32_t mJustificationNumSpaces;
|
||||
int32_t mJustificationNumLetters;
|
||||
|
||||
// Other state we use
|
||||
uint8_t mVerticalAlign;
|
||||
uint8_t mBlockDirAlign;
|
||||
|
||||
// PerFrameData flags
|
||||
#define PFD_RELATIVEPOS 0x00000001
|
||||
|
|
@ -414,19 +428,18 @@ protected:
|
|||
|
||||
const nsHTMLReflowState* mReflowState;
|
||||
bool mNoWrap;
|
||||
uint8_t mDirection;
|
||||
bool mChangedFrameDirection;
|
||||
mozilla::WritingMode mWritingMode;
|
||||
bool mZeroEffectiveSpanBox;
|
||||
bool mContainsFloat;
|
||||
bool mHasNonemptyContent;
|
||||
|
||||
nscoord mLeftEdge;
|
||||
nscoord mX;
|
||||
nscoord mRightEdge;
|
||||
nscoord mIStart;
|
||||
nscoord mICoord;
|
||||
nscoord mIEnd;
|
||||
|
||||
nscoord mTopLeading, mBottomLeading;
|
||||
nscoord mLogicalHeight;
|
||||
nscoord mMinY, mMaxY;
|
||||
nscoord mBStartLeading, mBEndLeading;
|
||||
nscoord mLogicalBSize;
|
||||
nscoord mMinBCoord, mMaxBCoord;
|
||||
nscoord* mBaseline;
|
||||
|
||||
void AppendFrame(PerFrameData* pfd) {
|
||||
|
|
@ -448,7 +461,7 @@ protected:
|
|||
int32_t mLastOptionalBreakContentOffset;
|
||||
int32_t mForceBreakContentOffset;
|
||||
|
||||
nscoord mMinLineHeight;
|
||||
nscoord mMinLineBSize;
|
||||
|
||||
// The amount of text indent that we applied to this line, needed for
|
||||
// max-element-size calculation.
|
||||
|
|
@ -462,19 +475,21 @@ protected:
|
|||
|
||||
int32_t mTotalPlacedFrames;
|
||||
|
||||
nscoord mTopEdge;
|
||||
nscoord mMaxTopBoxHeight;
|
||||
nscoord mMaxBottomBoxHeight;
|
||||
nscoord mBStartEdge;
|
||||
nscoord mMaxStartBoxBSize;
|
||||
nscoord mMaxEndBoxBSize;
|
||||
|
||||
nscoord mInflationMinFontSize;
|
||||
|
||||
// Final computed line-height value after VerticalAlignFrames for
|
||||
// Final computed line-bSize value after BlockDirAlignFrames for
|
||||
// the block has been called.
|
||||
nscoord mFinalLineHeight;
|
||||
nscoord mFinalLineBSize;
|
||||
|
||||
// Amount of trimmable whitespace width for the trailing text frame, if any
|
||||
nscoord mTrimmableWidth;
|
||||
|
||||
nscoord mContainerWidth;
|
||||
|
||||
bool mFirstLetterStyleOK : 1;
|
||||
bool mIsTopOfPage : 1;
|
||||
bool mImpactedByFloats : 1;
|
||||
|
|
@ -499,7 +514,7 @@ protected:
|
|||
/**
|
||||
* Allocate a PerFrameData from the mArena pool. The allocation is infallible.
|
||||
*/
|
||||
PerFrameData* NewPerFrameData();
|
||||
PerFrameData* NewPerFrameData(nsIFrame* aFrame);
|
||||
|
||||
/**
|
||||
* Allocate a PerSpanData from the mArena pool. The allocation is infallible.
|
||||
|
|
@ -518,7 +533,6 @@ protected:
|
|||
nsHTMLReflowState& aReflowState);
|
||||
|
||||
bool CanPlaceFrame(PerFrameData* pfd,
|
||||
uint8_t aFrameDirection,
|
||||
bool aNotSafeToBreak,
|
||||
bool aFrameCanContinueTextRun,
|
||||
bool aCanRollBackBeforeFrame,
|
||||
|
|
@ -529,15 +543,15 @@ protected:
|
|||
void PlaceFrame(PerFrameData* pfd,
|
||||
nsHTMLReflowMetrics& aMetrics);
|
||||
|
||||
void VerticalAlignFrames(PerSpanData* psd);
|
||||
void BlockDirAlignFrames(PerSpanData* psd);
|
||||
|
||||
void PlaceTopBottomFrames(PerSpanData* psd,
|
||||
nscoord aDistanceFromTop,
|
||||
nscoord aLineHeight);
|
||||
void PlaceStartEndFrames(PerSpanData* psd,
|
||||
nscoord aDistanceFromStart,
|
||||
nscoord aLineBSize);
|
||||
|
||||
void RelativePositionFrames(PerSpanData* psd, nsOverflowAreas& aOverflowAreas);
|
||||
|
||||
bool TrimTrailingWhiteSpaceIn(PerSpanData* psd, nscoord* aDeltaWidth);
|
||||
bool TrimTrailingWhiteSpaceIn(PerSpanData* psd, nscoord* aDeltaISize);
|
||||
|
||||
void ComputeJustificationWeights(PerSpanData* psd, int32_t* numSpaces, int32_t* numLetters);
|
||||
|
||||
|
|
|
|||
|
|
@ -7841,7 +7841,7 @@ nsTextFrame::ReflowText(nsLineLayout& aLineLayout, nscoord aAvailableWidth,
|
|||
|
||||
iter.SetOriginalOffset(offset);
|
||||
nscoord xOffsetForTabs = (mTextRun->GetFlags() & nsTextFrameUtils::TEXT_HAS_TAB) ?
|
||||
(aLineLayout.GetCurrentFrameXDistanceFromBlock() -
|
||||
(aLineLayout.GetCurrentFrameInlineDistanceFromBlock() -
|
||||
lineContainer->GetUsedBorderAndPadding().left)
|
||||
: -1;
|
||||
PropertyProvider provider(mTextRun, textStyle, frag, this, iter, length,
|
||||
|
|
|
|||
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