1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/editor/libeditor/html/nsWSRunObject.cpp Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,2155 @@
1.4 +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
1.5 +/* This Source Code Form is subject to the terms of the Mozilla Public
1.6 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.7 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.8 +
1.9 +#include "mozilla/Assertions.h"
1.10 +#include "mozilla/mozalloc.h"
1.11 +#include "nsAString.h"
1.12 +#include "nsAutoPtr.h"
1.13 +#include "nsCRT.h"
1.14 +#include "nsContentUtils.h"
1.15 +#include "nsDebug.h"
1.16 +#include "nsEditorUtils.h"
1.17 +#include "nsError.h"
1.18 +#include "nsHTMLEditor.h"
1.19 +#include "nsIContent.h"
1.20 +#include "nsIDOMCharacterData.h"
1.21 +#include "nsIDOMNode.h"
1.22 +#include "nsIDOMRange.h"
1.23 +#include "nsISupportsImpl.h"
1.24 +#include "nsRange.h"
1.25 +#include "nsSelectionState.h"
1.26 +#include "nsString.h"
1.27 +#include "nsTextEditUtils.h"
1.28 +#include "nsTextFragment.h"
1.29 +#include "nsWSRunObject.h"
1.30 +
1.31 +const char16_t nbsp = 160;
1.32 +
1.33 +static bool IsBlockNode(nsIDOMNode* node)
1.34 +{
1.35 + bool isBlock (false);
1.36 + nsHTMLEditor::NodeIsBlockStatic(node, &isBlock);
1.37 + return isBlock;
1.38 +}
1.39 +
1.40 +//- constructor / destructor -----------------------------------------------
1.41 +nsWSRunObject::nsWSRunObject(nsHTMLEditor *aEd, nsIDOMNode *aNode, int32_t aOffset) :
1.42 +mNode(aNode)
1.43 +,mOffset(aOffset)
1.44 +,mPRE(false)
1.45 +,mStartNode()
1.46 +,mStartOffset(0)
1.47 +,mStartReason()
1.48 +,mStartReasonNode()
1.49 +,mEndNode()
1.50 +,mEndOffset(0)
1.51 +,mEndReason()
1.52 +,mEndReasonNode()
1.53 +,mFirstNBSPNode()
1.54 +,mFirstNBSPOffset(0)
1.55 +,mLastNBSPNode()
1.56 +,mLastNBSPOffset(0)
1.57 +,mNodeArray()
1.58 +,mStartRun(nullptr)
1.59 +,mEndRun(nullptr)
1.60 +,mHTMLEditor(aEd)
1.61 +{
1.62 + GetWSNodes();
1.63 + GetRuns();
1.64 +}
1.65 +
1.66 +nsWSRunObject::~nsWSRunObject()
1.67 +{
1.68 + ClearRuns();
1.69 +}
1.70 +
1.71 +
1.72 +
1.73 +//--------------------------------------------------------------------------------------------
1.74 +// public static methods
1.75 +//--------------------------------------------------------------------------------------------
1.76 +
1.77 +nsresult
1.78 +nsWSRunObject::ScrubBlockBoundary(nsHTMLEditor *aHTMLEd,
1.79 + nsCOMPtr<nsIDOMNode> *aBlock,
1.80 + BlockBoundary aBoundary,
1.81 + int32_t *aOffset)
1.82 +{
1.83 + NS_ENSURE_TRUE(aBlock && aHTMLEd, NS_ERROR_NULL_POINTER);
1.84 + if ((aBoundary == kBlockStart) || (aBoundary == kBlockEnd))
1.85 + return ScrubBlockBoundaryInner(aHTMLEd, aBlock, aBoundary);
1.86 +
1.87 + // else we are scrubbing an outer boundary - just before or after
1.88 + // a block element.
1.89 + NS_ENSURE_TRUE(aOffset, NS_ERROR_NULL_POINTER);
1.90 + nsAutoTrackDOMPoint tracker(aHTMLEd->mRangeUpdater, aBlock, aOffset);
1.91 + nsWSRunObject theWSObj(aHTMLEd, *aBlock, *aOffset);
1.92 + return theWSObj.Scrub();
1.93 +}
1.94 +
1.95 +nsresult
1.96 +nsWSRunObject::PrepareToJoinBlocks(nsHTMLEditor *aHTMLEd,
1.97 + nsIDOMNode *aLeftParent,
1.98 + nsIDOMNode *aRightParent)
1.99 +{
1.100 + NS_ENSURE_TRUE(aLeftParent && aRightParent && aHTMLEd, NS_ERROR_NULL_POINTER);
1.101 + uint32_t count;
1.102 + aHTMLEd->GetLengthOfDOMNode(aLeftParent, count);
1.103 + nsWSRunObject leftWSObj(aHTMLEd, aLeftParent, count);
1.104 + nsWSRunObject rightWSObj(aHTMLEd, aRightParent, 0);
1.105 +
1.106 + return leftWSObj.PrepareToDeleteRangePriv(&rightWSObj);
1.107 +}
1.108 +
1.109 +nsresult
1.110 +nsWSRunObject::PrepareToDeleteRange(nsHTMLEditor *aHTMLEd,
1.111 + nsCOMPtr<nsIDOMNode> *aStartNode,
1.112 + int32_t *aStartOffset,
1.113 + nsCOMPtr<nsIDOMNode> *aEndNode,
1.114 + int32_t *aEndOffset)
1.115 +{
1.116 + NS_ENSURE_TRUE(aStartNode && aEndNode && *aStartNode && *aEndNode && aStartOffset && aEndOffset && aHTMLEd, NS_ERROR_NULL_POINTER);
1.117 +
1.118 + nsAutoTrackDOMPoint trackerStart(aHTMLEd->mRangeUpdater, aStartNode, aStartOffset);
1.119 + nsAutoTrackDOMPoint trackerEnd(aHTMLEd->mRangeUpdater, aEndNode, aEndOffset);
1.120 +
1.121 + nsWSRunObject leftWSObj(aHTMLEd, *aStartNode, *aStartOffset);
1.122 + nsWSRunObject rightWSObj(aHTMLEd, *aEndNode, *aEndOffset);
1.123 +
1.124 + return leftWSObj.PrepareToDeleteRangePriv(&rightWSObj);
1.125 +}
1.126 +
1.127 +nsresult
1.128 +nsWSRunObject::PrepareToDeleteNode(nsHTMLEditor *aHTMLEd,
1.129 + nsIDOMNode *aNode)
1.130 +{
1.131 + NS_ENSURE_TRUE(aNode && aHTMLEd, NS_ERROR_NULL_POINTER);
1.132 +
1.133 + int32_t offset;
1.134 + nsCOMPtr<nsIDOMNode> parent = aHTMLEd->GetNodeLocation(aNode, &offset);
1.135 +
1.136 + nsWSRunObject leftWSObj(aHTMLEd, parent, offset);
1.137 + nsWSRunObject rightWSObj(aHTMLEd, parent, offset+1);
1.138 +
1.139 + return leftWSObj.PrepareToDeleteRangePriv(&rightWSObj);
1.140 +}
1.141 +
1.142 +nsresult
1.143 +nsWSRunObject::PrepareToSplitAcrossBlocks(nsHTMLEditor *aHTMLEd,
1.144 + nsCOMPtr<nsIDOMNode> *aSplitNode,
1.145 + int32_t *aSplitOffset)
1.146 +{
1.147 + NS_ENSURE_TRUE(aSplitNode && aSplitOffset && *aSplitNode && aHTMLEd, NS_ERROR_NULL_POINTER);
1.148 +
1.149 + nsAutoTrackDOMPoint tracker(aHTMLEd->mRangeUpdater, aSplitNode, aSplitOffset);
1.150 +
1.151 + nsWSRunObject wsObj(aHTMLEd, *aSplitNode, *aSplitOffset);
1.152 +
1.153 + return wsObj.PrepareToSplitAcrossBlocksPriv();
1.154 +}
1.155 +
1.156 +//--------------------------------------------------------------------------------------------
1.157 +// public instance methods
1.158 +//--------------------------------------------------------------------------------------------
1.159 +
1.160 +nsresult
1.161 +nsWSRunObject::InsertBreak(nsCOMPtr<nsIDOMNode> *aInOutParent,
1.162 + int32_t *aInOutOffset,
1.163 + nsCOMPtr<nsIDOMNode> *outBRNode,
1.164 + nsIEditor::EDirection aSelect)
1.165 +{
1.166 + // MOOSE: for now, we always assume non-PRE formatting. Fix this later.
1.167 + // meanwhile, the pre case is handled in WillInsertText in nsHTMLEditRules.cpp
1.168 + NS_ENSURE_TRUE(aInOutParent && aInOutOffset && outBRNode, NS_ERROR_NULL_POINTER);
1.169 +
1.170 + nsresult res = NS_OK;
1.171 + WSFragment *beforeRun, *afterRun;
1.172 + FindRun(*aInOutParent, *aInOutOffset, &beforeRun, false);
1.173 + FindRun(*aInOutParent, *aInOutOffset, &afterRun, true);
1.174 +
1.175 + {
1.176 + // some scoping for nsAutoTrackDOMPoint. This will track our insertion point
1.177 + // while we tweak any surrounding whitespace
1.178 + nsAutoTrackDOMPoint tracker(mHTMLEditor->mRangeUpdater, aInOutParent, aInOutOffset);
1.179 +
1.180 + // handle any changes needed to ws run after inserted br
1.181 + if (!afterRun) {
1.182 + // don't need to do anything. just insert break. ws won't change.
1.183 + } else if (afterRun->mType & WSType::trailingWS) {
1.184 + // don't need to do anything. just insert break. ws won't change.
1.185 + } else if (afterRun->mType & WSType::leadingWS) {
1.186 + // delete the leading ws that is after insertion point. We don't
1.187 + // have to (it would still not be significant after br), but it's
1.188 + // just more aesthetically pleasing to.
1.189 + res = DeleteChars(*aInOutParent, *aInOutOffset, afterRun->mEndNode, afterRun->mEndOffset,
1.190 + eOutsideUserSelectAll);
1.191 + NS_ENSURE_SUCCESS(res, res);
1.192 + } else if (afterRun->mType == WSType::normalWS) {
1.193 + // need to determine if break at front of non-nbsp run. if so
1.194 + // convert run to nbsp.
1.195 + WSPoint thePoint = GetCharAfter(*aInOutParent, *aInOutOffset);
1.196 + if (thePoint.mTextNode && nsCRT::IsAsciiSpace(thePoint.mChar)) {
1.197 + WSPoint prevPoint = GetCharBefore(thePoint);
1.198 + if (prevPoint.mTextNode && !nsCRT::IsAsciiSpace(prevPoint.mChar)) {
1.199 + // we are at start of non-nbsps. convert to a single nbsp.
1.200 + res = ConvertToNBSP(thePoint);
1.201 + NS_ENSURE_SUCCESS(res, res);
1.202 + }
1.203 + }
1.204 + }
1.205 +
1.206 + // handle any changes needed to ws run before inserted br
1.207 + if (!beforeRun) {
1.208 + // don't need to do anything. just insert break. ws won't change.
1.209 + } else if (beforeRun->mType & WSType::leadingWS) {
1.210 + // don't need to do anything. just insert break. ws won't change.
1.211 + } else if (beforeRun->mType & WSType::trailingWS) {
1.212 + // need to delete the trailing ws that is before insertion point, because it
1.213 + // would become significant after break inserted.
1.214 + res = DeleteChars(beforeRun->mStartNode, beforeRun->mStartOffset, *aInOutParent, *aInOutOffset,
1.215 + eOutsideUserSelectAll);
1.216 + NS_ENSURE_SUCCESS(res, res);
1.217 + } else if (beforeRun->mType == WSType::normalWS) {
1.218 + // try to change an nbsp to a space, if possible, just to prevent nbsp proliferation
1.219 + res = CheckTrailingNBSP(beforeRun, *aInOutParent, *aInOutOffset);
1.220 + NS_ENSURE_SUCCESS(res, res);
1.221 + }
1.222 + }
1.223 +
1.224 + // ready, aim, fire!
1.225 + return mHTMLEditor->CreateBRImpl(aInOutParent, aInOutOffset, outBRNode, aSelect);
1.226 +}
1.227 +
1.228 +nsresult
1.229 +nsWSRunObject::InsertText(const nsAString& aStringToInsert,
1.230 + nsCOMPtr<nsIDOMNode> *aInOutParent,
1.231 + int32_t *aInOutOffset,
1.232 + nsIDOMDocument *aDoc)
1.233 +{
1.234 + // MOOSE: for now, we always assume non-PRE formatting. Fix this later.
1.235 + // meanwhile, the pre case is handled in WillInsertText in nsHTMLEditRules.cpp
1.236 +
1.237 + // MOOSE: for now, just getting the ws logic straight. This implementation
1.238 + // is very slow. Will need to replace edit rules impl with a more efficient
1.239 + // text sink here that does the minimal amount of searching/replacing/copying
1.240 +
1.241 + NS_ENSURE_TRUE(aInOutParent && aInOutOffset && aDoc, NS_ERROR_NULL_POINTER);
1.242 +
1.243 + nsresult res = NS_OK;
1.244 + if (aStringToInsert.IsEmpty()) return res;
1.245 +
1.246 + // string copying sux.
1.247 + nsAutoString theString(aStringToInsert);
1.248 +
1.249 + WSFragment *beforeRun, *afterRun;
1.250 + FindRun(*aInOutParent, *aInOutOffset, &beforeRun, false);
1.251 + FindRun(*aInOutParent, *aInOutOffset, &afterRun, true);
1.252 +
1.253 + {
1.254 + // some scoping for nsAutoTrackDOMPoint. This will track our insertion point
1.255 + // while we tweak any surrounding whitespace
1.256 + nsAutoTrackDOMPoint tracker(mHTMLEditor->mRangeUpdater, aInOutParent, aInOutOffset);
1.257 +
1.258 + // handle any changes needed to ws run after inserted text
1.259 + if (!afterRun) {
1.260 + // don't need to do anything. just insert text. ws won't change.
1.261 + } else if (afterRun->mType & WSType::trailingWS) {
1.262 + // don't need to do anything. just insert text. ws won't change.
1.263 + } else if (afterRun->mType & WSType::leadingWS) {
1.264 + // delete the leading ws that is after insertion point, because it
1.265 + // would become significant after text inserted.
1.266 + res = DeleteChars(*aInOutParent, *aInOutOffset, afterRun->mEndNode, afterRun->mEndOffset,
1.267 + eOutsideUserSelectAll);
1.268 + NS_ENSURE_SUCCESS(res, res);
1.269 + } else if (afterRun->mType == WSType::normalWS) {
1.270 + // try to change an nbsp to a space, if possible, just to prevent nbsp proliferation
1.271 + res = CheckLeadingNBSP(afterRun, *aInOutParent, *aInOutOffset);
1.272 + NS_ENSURE_SUCCESS(res, res);
1.273 + }
1.274 +
1.275 + // handle any changes needed to ws run before inserted text
1.276 + if (!beforeRun) {
1.277 + // don't need to do anything. just insert text. ws won't change.
1.278 + } else if (beforeRun->mType & WSType::leadingWS) {
1.279 + // don't need to do anything. just insert text. ws won't change.
1.280 + } else if (beforeRun->mType & WSType::trailingWS) {
1.281 + // need to delete the trailing ws that is before insertion point, because it
1.282 + // would become significant after text inserted.
1.283 + res = DeleteChars(beforeRun->mStartNode, beforeRun->mStartOffset, *aInOutParent, *aInOutOffset,
1.284 + eOutsideUserSelectAll);
1.285 + NS_ENSURE_SUCCESS(res, res);
1.286 + } else if (beforeRun->mType == WSType::normalWS) {
1.287 + // try to change an nbsp to a space, if possible, just to prevent nbsp proliferation
1.288 + res = CheckTrailingNBSP(beforeRun, *aInOutParent, *aInOutOffset);
1.289 + NS_ENSURE_SUCCESS(res, res);
1.290 + }
1.291 + }
1.292 +
1.293 + // next up, tweak head and tail of string as needed.
1.294 + // first the head:
1.295 + // there are a variety of circumstances that would require us to convert a
1.296 + // leading ws char into an nbsp:
1.297 +
1.298 + if (nsCRT::IsAsciiSpace(theString[0]))
1.299 + {
1.300 + // we have a leading space
1.301 + if (beforeRun) {
1.302 + if (beforeRun->mType & WSType::leadingWS) {
1.303 + theString.SetCharAt(nbsp, 0);
1.304 + } else if (beforeRun->mType & WSType::normalWS) {
1.305 + WSPoint wspoint = GetCharBefore(*aInOutParent, *aInOutOffset);
1.306 + if (wspoint.mTextNode && nsCRT::IsAsciiSpace(wspoint.mChar)) {
1.307 + theString.SetCharAt(nbsp, 0);
1.308 + }
1.309 + }
1.310 + } else {
1.311 + if (mStartReason & WSType::block || mStartReason == WSType::br) {
1.312 + theString.SetCharAt(nbsp, 0);
1.313 + }
1.314 + }
1.315 + }
1.316 +
1.317 + // then the tail
1.318 + uint32_t lastCharIndex = theString.Length()-1;
1.319 +
1.320 + if (nsCRT::IsAsciiSpace(theString[lastCharIndex]))
1.321 + {
1.322 + // we have a leading space
1.323 + if (afterRun)
1.324 + {
1.325 + if (afterRun->mType & WSType::trailingWS) {
1.326 + theString.SetCharAt(nbsp, lastCharIndex);
1.327 + } else if (afterRun->mType & WSType::normalWS) {
1.328 + WSPoint wspoint = GetCharAfter(*aInOutParent, *aInOutOffset);
1.329 + if (wspoint.mTextNode && nsCRT::IsAsciiSpace(wspoint.mChar)) {
1.330 + theString.SetCharAt(nbsp, lastCharIndex);
1.331 + }
1.332 + }
1.333 + }
1.334 + else
1.335 + {
1.336 + if (mEndReason & WSType::block) {
1.337 + theString.SetCharAt(nbsp, lastCharIndex);
1.338 + }
1.339 + }
1.340 + }
1.341 +
1.342 + // next scan string for adjacent ws and convert to nbsp/space combos
1.343 + // MOOSE: don't need to convert tabs here since that is done by WillInsertText()
1.344 + // before we are called. Eventually, all that logic will be pushed down into
1.345 + // here and made more efficient.
1.346 + uint32_t j;
1.347 + bool prevWS = false;
1.348 + for (j=0; j<=lastCharIndex; j++)
1.349 + {
1.350 + if (nsCRT::IsAsciiSpace(theString[j]))
1.351 + {
1.352 + if (prevWS)
1.353 + {
1.354 + theString.SetCharAt(nbsp, j-1); // j-1 can't be negative because prevWS starts out false
1.355 + }
1.356 + else
1.357 + {
1.358 + prevWS = true;
1.359 + }
1.360 + }
1.361 + else
1.362 + {
1.363 + prevWS = false;
1.364 + }
1.365 + }
1.366 +
1.367 + // ready, aim, fire!
1.368 + res = mHTMLEditor->InsertTextImpl(theString, aInOutParent, aInOutOffset, aDoc);
1.369 + return NS_OK;
1.370 +}
1.371 +
1.372 +nsresult
1.373 +nsWSRunObject::DeleteWSBackward()
1.374 +{
1.375 + nsresult res = NS_OK;
1.376 + WSPoint point = GetCharBefore(mNode, mOffset);
1.377 + NS_ENSURE_TRUE(point.mTextNode, NS_OK); // nothing to delete
1.378 +
1.379 + if (mPRE) // easy case, preformatted ws
1.380 + {
1.381 + if (nsCRT::IsAsciiSpace(point.mChar) || (point.mChar == nbsp))
1.382 + {
1.383 + nsCOMPtr<nsIDOMNode> node(do_QueryInterface(point.mTextNode));
1.384 + int32_t startOffset = point.mOffset;
1.385 + int32_t endOffset = point.mOffset+1;
1.386 + return DeleteChars(node, startOffset, node, endOffset);
1.387 + }
1.388 + }
1.389 +
1.390 + // callers job to insure that previous char is really ws.
1.391 + // If it is normal ws, we need to delete the whole run
1.392 + if (nsCRT::IsAsciiSpace(point.mChar))
1.393 + {
1.394 + nsCOMPtr<nsIDOMNode> startNode, endNode, node(do_QueryInterface(point.mTextNode));
1.395 + int32_t startOffset, endOffset;
1.396 + GetAsciiWSBounds(eBoth, node, point.mOffset+1, address_of(startNode),
1.397 + &startOffset, address_of(endNode), &endOffset);
1.398 +
1.399 + // adjust surrounding ws
1.400 + res = nsWSRunObject::PrepareToDeleteRange(mHTMLEditor, address_of(startNode), &startOffset,
1.401 + address_of(endNode), &endOffset);
1.402 + NS_ENSURE_SUCCESS(res, res);
1.403 +
1.404 + // finally, delete that ws
1.405 + return DeleteChars(startNode, startOffset, endNode, endOffset);
1.406 + }
1.407 + else if (point.mChar == nbsp)
1.408 + {
1.409 + nsCOMPtr<nsIDOMNode> node(do_QueryInterface(point.mTextNode));
1.410 + // adjust surrounding ws
1.411 + int32_t startOffset = point.mOffset;
1.412 + int32_t endOffset = point.mOffset+1;
1.413 + res = nsWSRunObject::PrepareToDeleteRange(mHTMLEditor, address_of(node), &startOffset,
1.414 + address_of(node), &endOffset);
1.415 + NS_ENSURE_SUCCESS(res, res);
1.416 +
1.417 + // finally, delete that ws
1.418 + return DeleteChars(node, startOffset, node, endOffset);
1.419 +
1.420 + }
1.421 + return NS_OK;
1.422 +}
1.423 +
1.424 +nsresult
1.425 +nsWSRunObject::DeleteWSForward()
1.426 +{
1.427 + nsresult res = NS_OK;
1.428 + WSPoint point = GetCharAfter(mNode, mOffset);
1.429 + NS_ENSURE_TRUE(point.mTextNode, NS_OK); // nothing to delete
1.430 +
1.431 + if (mPRE) // easy case, preformatted ws
1.432 + {
1.433 + if (nsCRT::IsAsciiSpace(point.mChar) || (point.mChar == nbsp))
1.434 + {
1.435 + nsCOMPtr<nsIDOMNode> node(do_QueryInterface(point.mTextNode));
1.436 + int32_t startOffset = point.mOffset;
1.437 + int32_t endOffset = point.mOffset+1;
1.438 + return DeleteChars(node, startOffset, node, endOffset);
1.439 + }
1.440 + }
1.441 +
1.442 + // callers job to insure that next char is really ws.
1.443 + // If it is normal ws, we need to delete the whole run
1.444 + if (nsCRT::IsAsciiSpace(point.mChar))
1.445 + {
1.446 + nsCOMPtr<nsIDOMNode> startNode, endNode, node(do_QueryInterface(point.mTextNode));
1.447 + int32_t startOffset, endOffset;
1.448 + GetAsciiWSBounds(eBoth, node, point.mOffset+1, address_of(startNode),
1.449 + &startOffset, address_of(endNode), &endOffset);
1.450 +
1.451 + // adjust surrounding ws
1.452 + res = nsWSRunObject::PrepareToDeleteRange(mHTMLEditor, address_of(startNode), &startOffset,
1.453 + address_of(endNode), &endOffset);
1.454 + NS_ENSURE_SUCCESS(res, res);
1.455 +
1.456 + // finally, delete that ws
1.457 + return DeleteChars(startNode, startOffset, endNode, endOffset);
1.458 + }
1.459 + else if (point.mChar == nbsp)
1.460 + {
1.461 + nsCOMPtr<nsIDOMNode> node(do_QueryInterface(point.mTextNode));
1.462 + // adjust surrounding ws
1.463 + int32_t startOffset = point.mOffset;
1.464 + int32_t endOffset = point.mOffset+1;
1.465 + res = nsWSRunObject::PrepareToDeleteRange(mHTMLEditor, address_of(node), &startOffset,
1.466 + address_of(node), &endOffset);
1.467 + NS_ENSURE_SUCCESS(res, res);
1.468 +
1.469 + // finally, delete that ws
1.470 + return DeleteChars(node, startOffset, node, endOffset);
1.471 +
1.472 + }
1.473 + return NS_OK;
1.474 +}
1.475 +
1.476 +void
1.477 +nsWSRunObject::PriorVisibleNode(nsIDOMNode *aNode,
1.478 + int32_t aOffset,
1.479 + nsCOMPtr<nsIDOMNode> *outVisNode,
1.480 + int32_t *outVisOffset,
1.481 + WSType *outType)
1.482 +{
1.483 + // Find first visible thing before the point. position outVisNode/outVisOffset
1.484 + // just _after_ that thing. If we don't find anything return start of ws.
1.485 + MOZ_ASSERT(aNode && outVisNode && outVisOffset && outType);
1.486 +
1.487 + *outType = WSType::none;
1.488 + WSFragment *run;
1.489 + FindRun(aNode, aOffset, &run, false);
1.490 +
1.491 + // is there a visible run there or earlier?
1.492 + while (run)
1.493 + {
1.494 + if (run->mType == WSType::normalWS) {
1.495 + WSPoint point = GetCharBefore(aNode, aOffset);
1.496 + if (point.mTextNode)
1.497 + {
1.498 + *outVisNode = do_QueryInterface(point.mTextNode);
1.499 + *outVisOffset = point.mOffset+1;
1.500 + if (nsCRT::IsAsciiSpace(point.mChar) || (point.mChar==nbsp))
1.501 + {
1.502 + *outType = WSType::normalWS;
1.503 + }
1.504 + else if (!point.mChar)
1.505 + {
1.506 + // MOOSE: not possible?
1.507 + *outType = WSType::none;
1.508 + }
1.509 + else
1.510 + {
1.511 + *outType = WSType::text;
1.512 + }
1.513 + return;
1.514 + }
1.515 + // else if no text node then keep looking. We should eventually fall out of loop
1.516 + }
1.517 +
1.518 + run = run->mLeft;
1.519 + }
1.520 +
1.521 + // if we get here then nothing in ws data to find. return start reason
1.522 + *outVisNode = mStartReasonNode;
1.523 + *outVisOffset = mStartOffset; // this really isn't meaningful if mStartReasonNode!=mStartNode
1.524 + *outType = mStartReason;
1.525 +}
1.526 +
1.527 +
1.528 +void
1.529 +nsWSRunObject::NextVisibleNode (nsIDOMNode *aNode,
1.530 + int32_t aOffset,
1.531 + nsCOMPtr<nsIDOMNode> *outVisNode,
1.532 + int32_t *outVisOffset,
1.533 + WSType *outType)
1.534 +{
1.535 + // Find first visible thing after the point. position outVisNode/outVisOffset
1.536 + // just _before_ that thing. If we don't find anything return end of ws.
1.537 + MOZ_ASSERT(aNode && outVisNode && outVisOffset && outType);
1.538 +
1.539 + WSFragment *run;
1.540 + FindRun(aNode, aOffset, &run, true);
1.541 +
1.542 + // is there a visible run there or later?
1.543 + while (run)
1.544 + {
1.545 + if (run->mType == WSType::normalWS) {
1.546 + WSPoint point = GetCharAfter(aNode, aOffset);
1.547 + if (point.mTextNode)
1.548 + {
1.549 + *outVisNode = do_QueryInterface(point.mTextNode);
1.550 + *outVisOffset = point.mOffset;
1.551 + if (nsCRT::IsAsciiSpace(point.mChar) || (point.mChar==nbsp))
1.552 + {
1.553 + *outType = WSType::normalWS;
1.554 + }
1.555 + else if (!point.mChar)
1.556 + {
1.557 + // MOOSE: not possible?
1.558 + *outType = WSType::none;
1.559 + }
1.560 + else
1.561 + {
1.562 + *outType = WSType::text;
1.563 + }
1.564 + return;
1.565 + }
1.566 + // else if no text node then keep looking. We should eventually fall out of loop
1.567 + }
1.568 +
1.569 + run = run->mRight;
1.570 + }
1.571 +
1.572 + // if we get here then nothing in ws data to find. return end reason
1.573 + *outVisNode = mEndReasonNode;
1.574 + *outVisOffset = mEndOffset; // this really isn't meaningful if mEndReasonNode!=mEndNode
1.575 + *outType = mEndReason;
1.576 +}
1.577 +
1.578 +nsresult
1.579 +nsWSRunObject::AdjustWhitespace()
1.580 +{
1.581 + // this routine examines a run of ws and tries to get rid of some unneeded nbsp's,
1.582 + // replacing them with regualr ascii space if possible. Keeping things simple
1.583 + // for now and just trying to fix up the trailing ws in the run.
1.584 + if (!mLastNBSPNode) {
1.585 + // nothing to do!
1.586 + return NS_OK;
1.587 + }
1.588 + nsresult res = NS_OK;
1.589 + WSFragment *curRun = mStartRun;
1.590 + while (curRun)
1.591 + {
1.592 + // look for normal ws run
1.593 + if (curRun->mType == WSType::normalWS) {
1.594 + res = CheckTrailingNBSPOfRun(curRun);
1.595 + break;
1.596 + }
1.597 + curRun = curRun->mRight;
1.598 + }
1.599 + return res;
1.600 +}
1.601 +
1.602 +
1.603 +//--------------------------------------------------------------------------------------------
1.604 +// protected methods
1.605 +//--------------------------------------------------------------------------------------------
1.606 +
1.607 +already_AddRefed<nsIDOMNode>
1.608 +nsWSRunObject::GetWSBoundingParent()
1.609 +{
1.610 + NS_ENSURE_TRUE(mNode, nullptr);
1.611 + nsCOMPtr<nsIDOMNode> wsBoundingParent = mNode;
1.612 + while (!IsBlockNode(wsBoundingParent))
1.613 + {
1.614 + nsCOMPtr<nsIDOMNode> parent;
1.615 + wsBoundingParent->GetParentNode(getter_AddRefs(parent));
1.616 + if (!parent || !mHTMLEditor->IsEditable(parent))
1.617 + break;
1.618 + wsBoundingParent.swap(parent);
1.619 + }
1.620 + return wsBoundingParent.forget();
1.621 +}
1.622 +
1.623 +nsresult
1.624 +nsWSRunObject::GetWSNodes()
1.625 +{
1.626 + // collect up an array of nodes that are contiguous with the insertion point
1.627 + // and which contain only whitespace. Stop if you reach non-ws text or a new
1.628 + // block boundary.
1.629 + nsresult res = NS_OK;
1.630 +
1.631 + DOMPoint start(mNode, mOffset), end(mNode, mOffset);
1.632 + nsCOMPtr<nsIDOMNode> wsBoundingParent = GetWSBoundingParent();
1.633 +
1.634 + // first look backwards to find preceding ws nodes
1.635 + if (mHTMLEditor->IsTextNode(mNode))
1.636 + {
1.637 + nsCOMPtr<nsIContent> textNode(do_QueryInterface(mNode));
1.638 + const nsTextFragment *textFrag = textNode->GetText();
1.639 +
1.640 + res = PrependNodeToList(mNode);
1.641 + NS_ENSURE_SUCCESS(res, res);
1.642 + if (mOffset)
1.643 + {
1.644 + int32_t pos;
1.645 + for (pos=mOffset-1; pos>=0; pos--)
1.646 + {
1.647 + // sanity bounds check the char position. bug 136165
1.648 + if (uint32_t(pos) >= textFrag->GetLength())
1.649 + {
1.650 + NS_NOTREACHED("looking beyond end of text fragment");
1.651 + continue;
1.652 + }
1.653 + char16_t theChar = textFrag->CharAt(pos);
1.654 + if (!nsCRT::IsAsciiSpace(theChar))
1.655 + {
1.656 + if (theChar != nbsp)
1.657 + {
1.658 + mStartNode = mNode;
1.659 + mStartOffset = pos+1;
1.660 + mStartReason = WSType::text;
1.661 + mStartReasonNode = mNode;
1.662 + break;
1.663 + }
1.664 + // as we look backwards update our earliest found nbsp
1.665 + mFirstNBSPNode = mNode;
1.666 + mFirstNBSPOffset = pos;
1.667 + // also keep track of latest nbsp so far
1.668 + if (!mLastNBSPNode)
1.669 + {
1.670 + mLastNBSPNode = mNode;
1.671 + mLastNBSPOffset = pos;
1.672 + }
1.673 + }
1.674 + start.SetPoint(mNode,pos);
1.675 + }
1.676 + }
1.677 + }
1.678 +
1.679 + nsCOMPtr<nsIDOMNode> priorNode;
1.680 + while (!mStartNode)
1.681 + {
1.682 + // we haven't found the start of ws yet. Keep looking
1.683 + res = GetPreviousWSNode(start, wsBoundingParent, address_of(priorNode));
1.684 + NS_ENSURE_SUCCESS(res, res);
1.685 + if (priorNode)
1.686 + {
1.687 + if (IsBlockNode(priorNode))
1.688 + {
1.689 + start.GetPoint(mStartNode, mStartOffset);
1.690 + mStartReason = WSType::otherBlock;
1.691 + mStartReasonNode = priorNode;
1.692 + }
1.693 + else if (mHTMLEditor->IsTextNode(priorNode))
1.694 + {
1.695 + res = PrependNodeToList(priorNode);
1.696 + NS_ENSURE_SUCCESS(res, res);
1.697 + nsCOMPtr<nsIContent> textNode(do_QueryInterface(priorNode));
1.698 + const nsTextFragment *textFrag;
1.699 + if (!textNode || !(textFrag = textNode->GetText())) {
1.700 + return NS_ERROR_NULL_POINTER;
1.701 + }
1.702 + uint32_t len = textNode->TextLength();
1.703 +
1.704 + if (len < 1)
1.705 + {
1.706 + // Zero length text node. Set start point to it
1.707 + // so we can get past it!
1.708 + start.SetPoint(priorNode,0);
1.709 + }
1.710 + else
1.711 + {
1.712 + int32_t pos;
1.713 + for (pos=len-1; pos>=0; pos--)
1.714 + {
1.715 + // sanity bounds check the char position. bug 136165
1.716 + if (uint32_t(pos) >= textFrag->GetLength())
1.717 + {
1.718 + NS_NOTREACHED("looking beyond end of text fragment");
1.719 + continue;
1.720 + }
1.721 + char16_t theChar = textFrag->CharAt(pos);
1.722 + if (!nsCRT::IsAsciiSpace(theChar))
1.723 + {
1.724 + if (theChar != nbsp)
1.725 + {
1.726 + mStartNode = priorNode;
1.727 + mStartOffset = pos+1;
1.728 + mStartReason = WSType::text;
1.729 + mStartReasonNode = priorNode;
1.730 + break;
1.731 + }
1.732 + // as we look backwards update our earliest found nbsp
1.733 + mFirstNBSPNode = priorNode;
1.734 + mFirstNBSPOffset = pos;
1.735 + // also keep track of latest nbsp so far
1.736 + if (!mLastNBSPNode)
1.737 + {
1.738 + mLastNBSPNode = priorNode;
1.739 + mLastNBSPOffset = pos;
1.740 + }
1.741 + }
1.742 + start.SetPoint(priorNode,pos);
1.743 + }
1.744 + }
1.745 + }
1.746 + else
1.747 + {
1.748 + // it's a break or a special node, like <img>, that is not a block and not
1.749 + // a break but still serves as a terminator to ws runs.
1.750 + start.GetPoint(mStartNode, mStartOffset);
1.751 + if (nsTextEditUtils::IsBreak(priorNode))
1.752 + mStartReason = WSType::br;
1.753 + else
1.754 + mStartReason = WSType::special;
1.755 + mStartReasonNode = priorNode;
1.756 + }
1.757 + }
1.758 + else
1.759 + {
1.760 + // no prior node means we exhausted wsBoundingParent
1.761 + start.GetPoint(mStartNode, mStartOffset);
1.762 + mStartReason = WSType::thisBlock;
1.763 + mStartReasonNode = wsBoundingParent;
1.764 + }
1.765 + }
1.766 +
1.767 + // then look ahead to find following ws nodes
1.768 + if (mHTMLEditor->IsTextNode(mNode))
1.769 + {
1.770 + // don't need to put it on list. it already is from code above
1.771 + nsCOMPtr<nsIContent> textNode(do_QueryInterface(mNode));
1.772 + const nsTextFragment *textFrag = textNode->GetText();
1.773 +
1.774 + uint32_t len = textNode->TextLength();
1.775 + if (uint16_t(mOffset)<len)
1.776 + {
1.777 + int32_t pos;
1.778 + for (pos=mOffset; uint32_t(pos)<len; pos++)
1.779 + {
1.780 + // sanity bounds check the char position. bug 136165
1.781 + if ((pos<0) || (uint32_t(pos)>=textFrag->GetLength()))
1.782 + {
1.783 + NS_NOTREACHED("looking beyond end of text fragment");
1.784 + continue;
1.785 + }
1.786 + char16_t theChar = textFrag->CharAt(pos);
1.787 + if (!nsCRT::IsAsciiSpace(theChar))
1.788 + {
1.789 + if (theChar != nbsp)
1.790 + {
1.791 + mEndNode = mNode;
1.792 + mEndOffset = pos;
1.793 + mEndReason = WSType::text;
1.794 + mEndReasonNode = mNode;
1.795 + break;
1.796 + }
1.797 + // as we look forwards update our latest found nbsp
1.798 + mLastNBSPNode = mNode;
1.799 + mLastNBSPOffset = pos;
1.800 + // also keep track of earliest nbsp so far
1.801 + if (!mFirstNBSPNode)
1.802 + {
1.803 + mFirstNBSPNode = mNode;
1.804 + mFirstNBSPOffset = pos;
1.805 + }
1.806 + }
1.807 + end.SetPoint(mNode,pos+1);
1.808 + }
1.809 + }
1.810 + }
1.811 +
1.812 + nsCOMPtr<nsIDOMNode> nextNode;
1.813 + while (!mEndNode)
1.814 + {
1.815 + // we haven't found the end of ws yet. Keep looking
1.816 + res = GetNextWSNode(end, wsBoundingParent, address_of(nextNode));
1.817 + NS_ENSURE_SUCCESS(res, res);
1.818 + if (nextNode)
1.819 + {
1.820 + if (IsBlockNode(nextNode))
1.821 + {
1.822 + // we encountered a new block. therefore no more ws.
1.823 + end.GetPoint(mEndNode, mEndOffset);
1.824 + mEndReason = WSType::otherBlock;
1.825 + mEndReasonNode = nextNode;
1.826 + }
1.827 + else if (mHTMLEditor->IsTextNode(nextNode))
1.828 + {
1.829 + res = AppendNodeToList(nextNode);
1.830 + NS_ENSURE_SUCCESS(res, res);
1.831 + nsCOMPtr<nsIContent> textNode(do_QueryInterface(nextNode));
1.832 + const nsTextFragment *textFrag;
1.833 + if (!textNode || !(textFrag = textNode->GetText())) {
1.834 + return NS_ERROR_NULL_POINTER;
1.835 + }
1.836 + uint32_t len = textNode->TextLength();
1.837 +
1.838 + if (len < 1)
1.839 + {
1.840 + // Zero length text node. Set end point to it
1.841 + // so we can get past it!
1.842 + end.SetPoint(nextNode,0);
1.843 + }
1.844 + else
1.845 + {
1.846 + int32_t pos;
1.847 + for (pos=0; uint32_t(pos)<len; pos++)
1.848 + {
1.849 + // sanity bounds check the char position. bug 136165
1.850 + if (uint32_t(pos) >= textFrag->GetLength())
1.851 + {
1.852 + NS_NOTREACHED("looking beyond end of text fragment");
1.853 + continue;
1.854 + }
1.855 + char16_t theChar = textFrag->CharAt(pos);
1.856 + if (!nsCRT::IsAsciiSpace(theChar))
1.857 + {
1.858 + if (theChar != nbsp)
1.859 + {
1.860 + mEndNode = nextNode;
1.861 + mEndOffset = pos;
1.862 + mEndReason = WSType::text;
1.863 + mEndReasonNode = nextNode;
1.864 + break;
1.865 + }
1.866 + // as we look forwards update our latest found nbsp
1.867 + mLastNBSPNode = nextNode;
1.868 + mLastNBSPOffset = pos;
1.869 + // also keep track of earliest nbsp so far
1.870 + if (!mFirstNBSPNode)
1.871 + {
1.872 + mFirstNBSPNode = nextNode;
1.873 + mFirstNBSPOffset = pos;
1.874 + }
1.875 + }
1.876 + end.SetPoint(nextNode,pos+1);
1.877 + }
1.878 + }
1.879 + }
1.880 + else
1.881 + {
1.882 + // we encountered a break or a special node, like <img>,
1.883 + // that is not a block and not a break but still
1.884 + // serves as a terminator to ws runs.
1.885 + end.GetPoint(mEndNode, mEndOffset);
1.886 + if (nsTextEditUtils::IsBreak(nextNode))
1.887 + mEndReason = WSType::br;
1.888 + else
1.889 + mEndReason = WSType::special;
1.890 + mEndReasonNode = nextNode;
1.891 + }
1.892 + }
1.893 + else
1.894 + {
1.895 + // no next node means we exhausted wsBoundingParent
1.896 + end.GetPoint(mEndNode, mEndOffset);
1.897 + mEndReason = WSType::thisBlock;
1.898 + mEndReasonNode = wsBoundingParent;
1.899 + }
1.900 + }
1.901 +
1.902 + return NS_OK;
1.903 +}
1.904 +
1.905 +void
1.906 +nsWSRunObject::GetRuns()
1.907 +{
1.908 + ClearRuns();
1.909 +
1.910 + // handle some easy cases first
1.911 + mHTMLEditor->IsPreformatted(mNode, &mPRE);
1.912 + // if it's preformatedd, or if we are surrounded by text or special, it's all one
1.913 + // big normal ws run
1.914 + if (mPRE ||
1.915 + ((mStartReason == WSType::text || mStartReason == WSType::special) &&
1.916 + (mEndReason == WSType::text || mEndReason == WSType::special ||
1.917 + mEndReason == WSType::br))) {
1.918 + MakeSingleWSRun(WSType::normalWS);
1.919 + return;
1.920 + }
1.921 +
1.922 + // if we are before or after a block (or after a break), and there are no nbsp's,
1.923 + // then it's all non-rendering ws.
1.924 + if (!mFirstNBSPNode && !mLastNBSPNode &&
1.925 + ((mStartReason & WSType::block) || mStartReason == WSType::br ||
1.926 + (mEndReason & WSType::block))) {
1.927 + WSType wstype;
1.928 + if ((mStartReason & WSType::block) || mStartReason == WSType::br) {
1.929 + wstype = WSType::leadingWS;
1.930 + }
1.931 + if (mEndReason & WSType::block) {
1.932 + wstype |= WSType::trailingWS;
1.933 + }
1.934 + MakeSingleWSRun(wstype);
1.935 + return;
1.936 + }
1.937 +
1.938 + // otherwise a little trickier. shucks.
1.939 + mStartRun = new WSFragment();
1.940 + mStartRun->mStartNode = mStartNode;
1.941 + mStartRun->mStartOffset = mStartOffset;
1.942 +
1.943 + if (mStartReason & WSType::block || mStartReason == WSType::br) {
1.944 + // set up mStartRun
1.945 + mStartRun->mType = WSType::leadingWS;
1.946 + mStartRun->mEndNode = mFirstNBSPNode;
1.947 + mStartRun->mEndOffset = mFirstNBSPOffset;
1.948 + mStartRun->mLeftType = mStartReason;
1.949 + mStartRun->mRightType = WSType::normalWS;
1.950 +
1.951 + // set up next run
1.952 + WSFragment *normalRun = new WSFragment();
1.953 + mStartRun->mRight = normalRun;
1.954 + normalRun->mType = WSType::normalWS;
1.955 + normalRun->mStartNode = mFirstNBSPNode;
1.956 + normalRun->mStartOffset = mFirstNBSPOffset;
1.957 + normalRun->mLeftType = WSType::leadingWS;
1.958 + normalRun->mLeft = mStartRun;
1.959 + if (mEndReason != WSType::block) {
1.960 + // then no trailing ws. this normal run ends the overall ws run.
1.961 + normalRun->mRightType = mEndReason;
1.962 + normalRun->mEndNode = mEndNode;
1.963 + normalRun->mEndOffset = mEndOffset;
1.964 + mEndRun = normalRun;
1.965 + }
1.966 + else
1.967 + {
1.968 + // we might have trailing ws.
1.969 + // it so happens that *if* there is an nbsp at end, {mEndNode,mEndOffset-1}
1.970 + // will point to it, even though in general start/end points not
1.971 + // guaranteed to be in text nodes.
1.972 + if ((mLastNBSPNode == mEndNode) && (mLastNBSPOffset == (mEndOffset-1)))
1.973 + {
1.974 + // normal ws runs right up to adjacent block (nbsp next to block)
1.975 + normalRun->mRightType = mEndReason;
1.976 + normalRun->mEndNode = mEndNode;
1.977 + normalRun->mEndOffset = mEndOffset;
1.978 + mEndRun = normalRun;
1.979 + }
1.980 + else
1.981 + {
1.982 + normalRun->mEndNode = mLastNBSPNode;
1.983 + normalRun->mEndOffset = mLastNBSPOffset+1;
1.984 + normalRun->mRightType = WSType::trailingWS;
1.985 +
1.986 + // set up next run
1.987 + WSFragment *lastRun = new WSFragment();
1.988 + lastRun->mType = WSType::trailingWS;
1.989 + lastRun->mStartNode = mLastNBSPNode;
1.990 + lastRun->mStartOffset = mLastNBSPOffset+1;
1.991 + lastRun->mEndNode = mEndNode;
1.992 + lastRun->mEndOffset = mEndOffset;
1.993 + lastRun->mLeftType = WSType::normalWS;
1.994 + lastRun->mLeft = normalRun;
1.995 + lastRun->mRightType = mEndReason;
1.996 + mEndRun = lastRun;
1.997 + normalRun->mRight = lastRun;
1.998 + }
1.999 + }
1.1000 + } else {
1.1001 + // mStartReason is not WSType::block or WSType::br; set up mStartRun
1.1002 + mStartRun->mType = WSType::normalWS;
1.1003 + mStartRun->mEndNode = mLastNBSPNode;
1.1004 + mStartRun->mEndOffset = mLastNBSPOffset+1;
1.1005 + mStartRun->mLeftType = mStartReason;
1.1006 +
1.1007 + // we might have trailing ws.
1.1008 + // it so happens that *if* there is an nbsp at end, {mEndNode,mEndOffset-1}
1.1009 + // will point to it, even though in general start/end points not
1.1010 + // guaranteed to be in text nodes.
1.1011 + if ((mLastNBSPNode == mEndNode) && (mLastNBSPOffset == (mEndOffset-1)))
1.1012 + {
1.1013 + mStartRun->mRightType = mEndReason;
1.1014 + mStartRun->mEndNode = mEndNode;
1.1015 + mStartRun->mEndOffset = mEndOffset;
1.1016 + mEndRun = mStartRun;
1.1017 + }
1.1018 + else
1.1019 + {
1.1020 + // set up next run
1.1021 + WSFragment *lastRun = new WSFragment();
1.1022 + lastRun->mType = WSType::trailingWS;
1.1023 + lastRun->mStartNode = mLastNBSPNode;
1.1024 + lastRun->mStartOffset = mLastNBSPOffset+1;
1.1025 + lastRun->mLeftType = WSType::normalWS;
1.1026 + lastRun->mLeft = mStartRun;
1.1027 + lastRun->mRightType = mEndReason;
1.1028 + mEndRun = lastRun;
1.1029 + mStartRun->mRight = lastRun;
1.1030 + mStartRun->mRightType = WSType::trailingWS;
1.1031 + }
1.1032 + }
1.1033 +}
1.1034 +
1.1035 +void
1.1036 +nsWSRunObject::ClearRuns()
1.1037 +{
1.1038 + WSFragment *tmp, *run;
1.1039 + run = mStartRun;
1.1040 + while (run)
1.1041 + {
1.1042 + tmp = run->mRight;
1.1043 + delete run;
1.1044 + run = tmp;
1.1045 + }
1.1046 + mStartRun = 0;
1.1047 + mEndRun = 0;
1.1048 +}
1.1049 +
1.1050 +void
1.1051 +nsWSRunObject::MakeSingleWSRun(WSType aType)
1.1052 +{
1.1053 + mStartRun = new WSFragment();
1.1054 +
1.1055 + mStartRun->mStartNode = mStartNode;
1.1056 + mStartRun->mStartOffset = mStartOffset;
1.1057 + mStartRun->mType = aType;
1.1058 + mStartRun->mEndNode = mEndNode;
1.1059 + mStartRun->mEndOffset = mEndOffset;
1.1060 + mStartRun->mLeftType = mStartReason;
1.1061 + mStartRun->mRightType = mEndReason;
1.1062 +
1.1063 + mEndRun = mStartRun;
1.1064 +}
1.1065 +
1.1066 +nsresult
1.1067 +nsWSRunObject::PrependNodeToList(nsIDOMNode *aNode)
1.1068 +{
1.1069 + NS_ENSURE_TRUE(aNode, NS_ERROR_NULL_POINTER);
1.1070 + if (!mNodeArray.InsertObjectAt(aNode, 0))
1.1071 + return NS_ERROR_FAILURE;
1.1072 + return NS_OK;
1.1073 +}
1.1074 +
1.1075 +nsresult
1.1076 +nsWSRunObject::AppendNodeToList(nsIDOMNode *aNode)
1.1077 +{
1.1078 + NS_ENSURE_TRUE(aNode, NS_ERROR_NULL_POINTER);
1.1079 + if (!mNodeArray.AppendObject(aNode))
1.1080 + return NS_ERROR_FAILURE;
1.1081 + return NS_OK;
1.1082 +}
1.1083 +
1.1084 +nsresult
1.1085 +nsWSRunObject::GetPreviousWSNode(nsIDOMNode *aStartNode,
1.1086 + nsIDOMNode *aBlockParent,
1.1087 + nsCOMPtr<nsIDOMNode> *aPriorNode)
1.1088 +{
1.1089 + // can't really recycle various getnext/prior routines because we
1.1090 + // have special needs here. Need to step into inline containers but
1.1091 + // not block containers.
1.1092 + NS_ENSURE_TRUE(aStartNode && aBlockParent && aPriorNode, NS_ERROR_NULL_POINTER);
1.1093 +
1.1094 + nsresult res = aStartNode->GetPreviousSibling(getter_AddRefs(*aPriorNode));
1.1095 + NS_ENSURE_SUCCESS(res, res);
1.1096 + nsCOMPtr<nsIDOMNode> temp, curNode = aStartNode;
1.1097 + while (!*aPriorNode)
1.1098 + {
1.1099 + // we have exhausted nodes in parent of aStartNode.
1.1100 + res = curNode->GetParentNode(getter_AddRefs(temp));
1.1101 + NS_ENSURE_SUCCESS(res, res);
1.1102 + NS_ENSURE_TRUE(temp, NS_ERROR_NULL_POINTER);
1.1103 + if (temp == aBlockParent)
1.1104 + {
1.1105 + // we have exhausted nodes in the block parent. The convention here is to return null.
1.1106 + *aPriorNode = nullptr;
1.1107 + return NS_OK;
1.1108 + }
1.1109 + // we have a parent: look for previous sibling
1.1110 + res = temp->GetPreviousSibling(getter_AddRefs(*aPriorNode));
1.1111 + NS_ENSURE_SUCCESS(res, res);
1.1112 + curNode = temp;
1.1113 + }
1.1114 + // we have a prior node. If it's a block, return it.
1.1115 + if (IsBlockNode(*aPriorNode))
1.1116 + return NS_OK;
1.1117 + // else if it's a container, get deep rightmost child
1.1118 + else if (mHTMLEditor->IsContainer(*aPriorNode))
1.1119 + {
1.1120 + temp = mHTMLEditor->GetRightmostChild(*aPriorNode);
1.1121 + if (temp)
1.1122 + *aPriorNode = temp;
1.1123 + return NS_OK;
1.1124 + }
1.1125 + // else return the node itself
1.1126 + return NS_OK;
1.1127 +}
1.1128 +
1.1129 +nsresult
1.1130 +nsWSRunObject::GetPreviousWSNode(DOMPoint aPoint,
1.1131 + nsIDOMNode *aBlockParent,
1.1132 + nsCOMPtr<nsIDOMNode> *aPriorNode)
1.1133 +{
1.1134 + nsCOMPtr<nsIDOMNode> node;
1.1135 + int32_t offset;
1.1136 + aPoint.GetPoint(node, offset);
1.1137 + return GetPreviousWSNode(node,offset,aBlockParent,aPriorNode);
1.1138 +}
1.1139 +
1.1140 +nsresult
1.1141 +nsWSRunObject::GetPreviousWSNode(nsIDOMNode *aStartNode,
1.1142 + int32_t aOffset,
1.1143 + nsIDOMNode *aBlockParent,
1.1144 + nsCOMPtr<nsIDOMNode> *aPriorNode)
1.1145 +{
1.1146 + // can't really recycle various getnext/prior routines because we
1.1147 + // have special needs here. Need to step into inline containers but
1.1148 + // not block containers.
1.1149 + NS_ENSURE_TRUE(aStartNode && aBlockParent && aPriorNode, NS_ERROR_NULL_POINTER);
1.1150 + *aPriorNode = 0;
1.1151 +
1.1152 + if (mHTMLEditor->IsTextNode(aStartNode))
1.1153 + return GetPreviousWSNode(aStartNode, aBlockParent, aPriorNode);
1.1154 + if (!mHTMLEditor->IsContainer(aStartNode))
1.1155 + return GetPreviousWSNode(aStartNode, aBlockParent, aPriorNode);
1.1156 +
1.1157 + if (!aOffset)
1.1158 + {
1.1159 + if (aStartNode==aBlockParent)
1.1160 + {
1.1161 + // we are at start of the block.
1.1162 + return NS_OK;
1.1163 + }
1.1164 +
1.1165 + // we are at start of non-block container
1.1166 + return GetPreviousWSNode(aStartNode, aBlockParent, aPriorNode);
1.1167 + }
1.1168 +
1.1169 + nsCOMPtr<nsIContent> startContent( do_QueryInterface(aStartNode) );
1.1170 + NS_ENSURE_STATE(startContent);
1.1171 + nsIContent *priorContent = startContent->GetChildAt(aOffset - 1);
1.1172 + NS_ENSURE_TRUE(priorContent, NS_ERROR_NULL_POINTER);
1.1173 + *aPriorNode = do_QueryInterface(priorContent);
1.1174 + // we have a prior node. If it's a block, return it.
1.1175 + if (IsBlockNode(*aPriorNode))
1.1176 + return NS_OK;
1.1177 + // else if it's a container, get deep rightmost child
1.1178 + else if (mHTMLEditor->IsContainer(*aPriorNode))
1.1179 + {
1.1180 + nsCOMPtr<nsIDOMNode> temp;
1.1181 + temp = mHTMLEditor->GetRightmostChild(*aPriorNode);
1.1182 + if (temp)
1.1183 + *aPriorNode = temp;
1.1184 + return NS_OK;
1.1185 + }
1.1186 + // else return the node itself
1.1187 + return NS_OK;
1.1188 +}
1.1189 +
1.1190 +nsresult
1.1191 +nsWSRunObject::GetNextWSNode(nsIDOMNode *aStartNode,
1.1192 + nsIDOMNode *aBlockParent,
1.1193 + nsCOMPtr<nsIDOMNode> *aNextNode)
1.1194 +{
1.1195 + // can't really recycle various getnext/prior routines because we
1.1196 + // have special needs here. Need to step into inline containers but
1.1197 + // not block containers.
1.1198 + NS_ENSURE_TRUE(aStartNode && aBlockParent && aNextNode, NS_ERROR_NULL_POINTER);
1.1199 +
1.1200 + *aNextNode = 0;
1.1201 + nsresult res = aStartNode->GetNextSibling(getter_AddRefs(*aNextNode));
1.1202 + NS_ENSURE_SUCCESS(res, res);
1.1203 + nsCOMPtr<nsIDOMNode> temp, curNode = aStartNode;
1.1204 + while (!*aNextNode)
1.1205 + {
1.1206 + // we have exhausted nodes in parent of aStartNode.
1.1207 + res = curNode->GetParentNode(getter_AddRefs(temp));
1.1208 + NS_ENSURE_SUCCESS(res, res);
1.1209 + NS_ENSURE_TRUE(temp, NS_ERROR_NULL_POINTER);
1.1210 + if (temp == aBlockParent)
1.1211 + {
1.1212 + // we have exhausted nodes in the block parent. The convention
1.1213 + // here is to return null.
1.1214 + *aNextNode = nullptr;
1.1215 + return NS_OK;
1.1216 + }
1.1217 + // we have a parent: look for next sibling
1.1218 + res = temp->GetNextSibling(getter_AddRefs(*aNextNode));
1.1219 + NS_ENSURE_SUCCESS(res, res);
1.1220 + curNode = temp;
1.1221 + }
1.1222 + // we have a next node. If it's a block, return it.
1.1223 + if (IsBlockNode(*aNextNode))
1.1224 + return NS_OK;
1.1225 + // else if it's a container, get deep leftmost child
1.1226 + else if (mHTMLEditor->IsContainer(*aNextNode))
1.1227 + {
1.1228 + temp = mHTMLEditor->GetLeftmostChild(*aNextNode);
1.1229 + if (temp)
1.1230 + *aNextNode = temp;
1.1231 + return NS_OK;
1.1232 + }
1.1233 + // else return the node itself
1.1234 + return NS_OK;
1.1235 +}
1.1236 +
1.1237 +nsresult
1.1238 +nsWSRunObject::GetNextWSNode(DOMPoint aPoint,
1.1239 + nsIDOMNode *aBlockParent,
1.1240 + nsCOMPtr<nsIDOMNode> *aNextNode)
1.1241 +{
1.1242 + nsCOMPtr<nsIDOMNode> node;
1.1243 + int32_t offset;
1.1244 + aPoint.GetPoint(node, offset);
1.1245 + return GetNextWSNode(node,offset,aBlockParent,aNextNode);
1.1246 +}
1.1247 +
1.1248 +nsresult
1.1249 +nsWSRunObject::GetNextWSNode(nsIDOMNode *aStartNode,
1.1250 + int32_t aOffset,
1.1251 + nsIDOMNode *aBlockParent,
1.1252 + nsCOMPtr<nsIDOMNode> *aNextNode)
1.1253 +{
1.1254 + // can't really recycle various getnext/prior routines because we have special needs
1.1255 + // here. Need to step into inline containers but not block containers.
1.1256 + NS_ENSURE_TRUE(aStartNode && aBlockParent && aNextNode, NS_ERROR_NULL_POINTER);
1.1257 + *aNextNode = 0;
1.1258 +
1.1259 + if (mHTMLEditor->IsTextNode(aStartNode))
1.1260 + return GetNextWSNode(aStartNode, aBlockParent, aNextNode);
1.1261 + if (!mHTMLEditor->IsContainer(aStartNode))
1.1262 + return GetNextWSNode(aStartNode, aBlockParent, aNextNode);
1.1263 +
1.1264 + nsCOMPtr<nsIContent> startContent( do_QueryInterface(aStartNode) );
1.1265 + NS_ENSURE_STATE(startContent);
1.1266 + nsIContent *nextContent = startContent->GetChildAt(aOffset);
1.1267 + if (!nextContent)
1.1268 + {
1.1269 + if (aStartNode==aBlockParent)
1.1270 + {
1.1271 + // we are at end of the block.
1.1272 + return NS_OK;
1.1273 + }
1.1274 +
1.1275 + // we are at end of non-block container
1.1276 + return GetNextWSNode(aStartNode, aBlockParent, aNextNode);
1.1277 + }
1.1278 +
1.1279 + *aNextNode = do_QueryInterface(nextContent);
1.1280 + // we have a next node. If it's a block, return it.
1.1281 + if (IsBlockNode(*aNextNode))
1.1282 + return NS_OK;
1.1283 + // else if it's a container, get deep leftmost child
1.1284 + else if (mHTMLEditor->IsContainer(*aNextNode))
1.1285 + {
1.1286 + nsCOMPtr<nsIDOMNode> temp;
1.1287 + temp = mHTMLEditor->GetLeftmostChild(*aNextNode);
1.1288 + if (temp)
1.1289 + *aNextNode = temp;
1.1290 + return NS_OK;
1.1291 + }
1.1292 + // else return the node itself
1.1293 + return NS_OK;
1.1294 +}
1.1295 +
1.1296 +nsresult
1.1297 +nsWSRunObject::PrepareToDeleteRangePriv(nsWSRunObject* aEndObject)
1.1298 +{
1.1299 + // this routine adjust whitespace before *this* and after aEndObject
1.1300 + // in preperation for the two areas to become adjacent after the
1.1301 + // intervening content is deleted. It's overly agressive right
1.1302 + // now. There might be a block boundary remaining between them after
1.1303 + // the deletion, in which case these adjstments are unneeded (though
1.1304 + // I don't think they can ever be harmful?)
1.1305 +
1.1306 + NS_ENSURE_TRUE(aEndObject, NS_ERROR_NULL_POINTER);
1.1307 + nsresult res = NS_OK;
1.1308 +
1.1309 + // get the runs before and after selection
1.1310 + WSFragment *beforeRun, *afterRun;
1.1311 + FindRun(mNode, mOffset, &beforeRun, false);
1.1312 + aEndObject->FindRun(aEndObject->mNode, aEndObject->mOffset, &afterRun, true);
1.1313 +
1.1314 + // trim after run of any leading ws
1.1315 + if (afterRun && (afterRun->mType & WSType::leadingWS)) {
1.1316 + res = aEndObject->DeleteChars(aEndObject->mNode, aEndObject->mOffset, afterRun->mEndNode, afterRun->mEndOffset,
1.1317 + eOutsideUserSelectAll);
1.1318 + NS_ENSURE_SUCCESS(res, res);
1.1319 + }
1.1320 + // adjust normal ws in afterRun if needed
1.1321 + if (afterRun && afterRun->mType == WSType::normalWS && !aEndObject->mPRE) {
1.1322 + if ((beforeRun && (beforeRun->mType & WSType::leadingWS)) ||
1.1323 + (!beforeRun && ((mStartReason & WSType::block) ||
1.1324 + mStartReason == WSType::br))) {
1.1325 + // make sure leading char of following ws is an nbsp, so that it will show up
1.1326 + WSPoint point = aEndObject->GetCharAfter(aEndObject->mNode,
1.1327 + aEndObject->mOffset);
1.1328 + if (point.mTextNode && nsCRT::IsAsciiSpace(point.mChar))
1.1329 + {
1.1330 + res = aEndObject->ConvertToNBSP(point, eOutsideUserSelectAll);
1.1331 + NS_ENSURE_SUCCESS(res, res);
1.1332 + }
1.1333 + }
1.1334 + }
1.1335 + // trim before run of any trailing ws
1.1336 + if (beforeRun && (beforeRun->mType & WSType::trailingWS)) {
1.1337 + res = DeleteChars(beforeRun->mStartNode, beforeRun->mStartOffset, mNode, mOffset,
1.1338 + eOutsideUserSelectAll);
1.1339 + NS_ENSURE_SUCCESS(res, res);
1.1340 + } else if (beforeRun && beforeRun->mType == WSType::normalWS && !mPRE) {
1.1341 + if ((afterRun && (afterRun->mType & WSType::trailingWS)) ||
1.1342 + (afterRun && afterRun->mType == WSType::normalWS) ||
1.1343 + (!afterRun && (aEndObject->mEndReason & WSType::block))) {
1.1344 + // make sure trailing char of starting ws is an nbsp, so that it will show up
1.1345 + WSPoint point = GetCharBefore(mNode, mOffset);
1.1346 + if (point.mTextNode && nsCRT::IsAsciiSpace(point.mChar))
1.1347 + {
1.1348 + nsCOMPtr<nsIDOMNode> wsStartNode, wsEndNode;
1.1349 + int32_t wsStartOffset, wsEndOffset;
1.1350 + GetAsciiWSBounds(eBoth, mNode, mOffset, address_of(wsStartNode),
1.1351 + &wsStartOffset, address_of(wsEndNode), &wsEndOffset);
1.1352 + point.mTextNode = do_QueryInterface(wsStartNode);
1.1353 + if (!point.mTextNode->IsNodeOfType(nsINode::eDATA_NODE)) {
1.1354 + // Not sure if this is needed, but it'll maintain the same
1.1355 + // functionality
1.1356 + point.mTextNode = nullptr;
1.1357 + }
1.1358 + point.mOffset = wsStartOffset;
1.1359 + res = ConvertToNBSP(point, eOutsideUserSelectAll);
1.1360 + NS_ENSURE_SUCCESS(res, res);
1.1361 + }
1.1362 + }
1.1363 + }
1.1364 + return res;
1.1365 +}
1.1366 +
1.1367 +nsresult
1.1368 +nsWSRunObject::PrepareToSplitAcrossBlocksPriv()
1.1369 +{
1.1370 + // used to prepare ws to be split across two blocks. The main issue
1.1371 + // here is make sure normalWS doesn't end up becoming non-significant
1.1372 + // leading or trailing ws after the split.
1.1373 + nsresult res = NS_OK;
1.1374 +
1.1375 + // get the runs before and after selection
1.1376 + WSFragment *beforeRun, *afterRun;
1.1377 + FindRun(mNode, mOffset, &beforeRun, false);
1.1378 + FindRun(mNode, mOffset, &afterRun, true);
1.1379 +
1.1380 + // adjust normal ws in afterRun if needed
1.1381 + if (afterRun && afterRun->mType == WSType::normalWS) {
1.1382 + // make sure leading char of following ws is an nbsp, so that it will show up
1.1383 + WSPoint point = GetCharAfter(mNode, mOffset);
1.1384 + if (point.mTextNode && nsCRT::IsAsciiSpace(point.mChar))
1.1385 + {
1.1386 + res = ConvertToNBSP(point);
1.1387 + NS_ENSURE_SUCCESS(res, res);
1.1388 + }
1.1389 + }
1.1390 +
1.1391 + // adjust normal ws in beforeRun if needed
1.1392 + if (beforeRun && beforeRun->mType == WSType::normalWS) {
1.1393 + // make sure trailing char of starting ws is an nbsp, so that it will show up
1.1394 + WSPoint point = GetCharBefore(mNode, mOffset);
1.1395 + if (point.mTextNode && nsCRT::IsAsciiSpace(point.mChar))
1.1396 + {
1.1397 + nsCOMPtr<nsIDOMNode> wsStartNode, wsEndNode;
1.1398 + int32_t wsStartOffset, wsEndOffset;
1.1399 + GetAsciiWSBounds(eBoth, mNode, mOffset, address_of(wsStartNode),
1.1400 + &wsStartOffset, address_of(wsEndNode), &wsEndOffset);
1.1401 + point.mTextNode = do_QueryInterface(wsStartNode);
1.1402 + if (!point.mTextNode->IsNodeOfType(nsINode::eDATA_NODE)) {
1.1403 + // Not sure if this is needed, but it'll maintain the same
1.1404 + // functionality
1.1405 + point.mTextNode = nullptr;
1.1406 + }
1.1407 + point.mOffset = wsStartOffset;
1.1408 + res = ConvertToNBSP(point);
1.1409 + NS_ENSURE_SUCCESS(res, res);
1.1410 + }
1.1411 + }
1.1412 + return res;
1.1413 +}
1.1414 +
1.1415 +nsresult
1.1416 +nsWSRunObject::DeleteChars(nsIDOMNode *aStartNode, int32_t aStartOffset,
1.1417 + nsIDOMNode *aEndNode, int32_t aEndOffset,
1.1418 + AreaRestriction aAR)
1.1419 +{
1.1420 + // MOOSE: this routine needs to be modified to preserve the integrity of the
1.1421 + // wsFragment info.
1.1422 + NS_ENSURE_TRUE(aStartNode && aEndNode, NS_ERROR_NULL_POINTER);
1.1423 +
1.1424 + if (aAR == eOutsideUserSelectAll)
1.1425 + {
1.1426 + nsCOMPtr<nsIDOMNode> san = mHTMLEditor->FindUserSelectAllNode(aStartNode);
1.1427 + if (san)
1.1428 + return NS_OK;
1.1429 +
1.1430 + if (aStartNode != aEndNode)
1.1431 + {
1.1432 + san = mHTMLEditor->FindUserSelectAllNode(aEndNode);
1.1433 + if (san)
1.1434 + return NS_OK;
1.1435 + }
1.1436 + }
1.1437 +
1.1438 + if ((aStartNode == aEndNode) && (aStartOffset == aEndOffset))
1.1439 + return NS_OK; // nothing to delete
1.1440 +
1.1441 + nsresult res = NS_OK;
1.1442 + int32_t idx = mNodeArray.IndexOf(aStartNode);
1.1443 + if (idx==-1) idx = 0; // if our strarting point wasn't one of our ws text nodes,
1.1444 + // then just go through them from the beginning.
1.1445 + nsCOMPtr<nsIDOMNode> node;
1.1446 + nsCOMPtr<nsIDOMCharacterData> textnode;
1.1447 + nsRefPtr<nsRange> range;
1.1448 +
1.1449 + if (aStartNode == aEndNode)
1.1450 + {
1.1451 + textnode = do_QueryInterface(aStartNode);
1.1452 + if (textnode)
1.1453 + {
1.1454 + return mHTMLEditor->DeleteText(textnode, (uint32_t)aStartOffset,
1.1455 + (uint32_t)(aEndOffset-aStartOffset));
1.1456 + }
1.1457 + }
1.1458 +
1.1459 + int32_t count = mNodeArray.Count();
1.1460 + while (idx < count)
1.1461 + {
1.1462 + node = mNodeArray[idx];
1.1463 + if (!node)
1.1464 + break; // we ran out of ws nodes; must have been deleting to end
1.1465 + if (node == aStartNode)
1.1466 + {
1.1467 + textnode = do_QueryInterface(node);
1.1468 + uint32_t len;
1.1469 + textnode->GetLength(&len);
1.1470 + if (uint32_t(aStartOffset)<len)
1.1471 + {
1.1472 + res = mHTMLEditor->DeleteText(textnode, (uint32_t)aStartOffset, len-aStartOffset);
1.1473 + NS_ENSURE_SUCCESS(res, res);
1.1474 + }
1.1475 + }
1.1476 + else if (node == aEndNode)
1.1477 + {
1.1478 + if (aEndOffset)
1.1479 + {
1.1480 + textnode = do_QueryInterface(node);
1.1481 + res = mHTMLEditor->DeleteText(textnode, 0, (uint32_t)aEndOffset);
1.1482 + NS_ENSURE_SUCCESS(res, res);
1.1483 + }
1.1484 + break;
1.1485 + }
1.1486 + else
1.1487 + {
1.1488 + if (!range)
1.1489 + {
1.1490 + nsCOMPtr<nsINode> startNode = do_QueryInterface(aStartNode);
1.1491 + NS_ENSURE_STATE(startNode);
1.1492 + range = new nsRange(startNode);
1.1493 + res = range->SetStart(startNode, aStartOffset);
1.1494 + NS_ENSURE_SUCCESS(res, res);
1.1495 + res = range->SetEnd(aEndNode, aEndOffset);
1.1496 + NS_ENSURE_SUCCESS(res, res);
1.1497 + }
1.1498 + bool nodeBefore, nodeAfter;
1.1499 + nsCOMPtr<nsIContent> content (do_QueryInterface(node));
1.1500 + res = nsRange::CompareNodeToRange(content, range, &nodeBefore, &nodeAfter);
1.1501 + NS_ENSURE_SUCCESS(res, res);
1.1502 + if (nodeAfter)
1.1503 + {
1.1504 + break;
1.1505 + }
1.1506 + if (!nodeBefore)
1.1507 + {
1.1508 + res = mHTMLEditor->DeleteNode(node);
1.1509 + NS_ENSURE_SUCCESS(res, res);
1.1510 + mNodeArray.RemoveObject(node);
1.1511 + --count;
1.1512 + --idx;
1.1513 + }
1.1514 + }
1.1515 + idx++;
1.1516 + }
1.1517 + return res;
1.1518 +}
1.1519 +
1.1520 +nsWSRunObject::WSPoint
1.1521 +nsWSRunObject::GetCharAfter(nsIDOMNode *aNode, int32_t aOffset)
1.1522 +{
1.1523 + MOZ_ASSERT(aNode);
1.1524 +
1.1525 + int32_t idx = mNodeArray.IndexOf(aNode);
1.1526 + if (idx == -1)
1.1527 + {
1.1528 + // use range comparisons to get right ws node
1.1529 + return GetWSPointAfter(aNode, aOffset);
1.1530 + }
1.1531 + else
1.1532 + {
1.1533 + // use wspoint version of GetCharAfter()
1.1534 + WSPoint point(aNode,aOffset,0);
1.1535 + return GetCharAfter(point);
1.1536 + }
1.1537 +}
1.1538 +
1.1539 +nsWSRunObject::WSPoint
1.1540 +nsWSRunObject::GetCharBefore(nsIDOMNode *aNode, int32_t aOffset)
1.1541 +{
1.1542 + MOZ_ASSERT(aNode);
1.1543 +
1.1544 + int32_t idx = mNodeArray.IndexOf(aNode);
1.1545 + if (idx == -1)
1.1546 + {
1.1547 + // use range comparisons to get right ws node
1.1548 + return GetWSPointBefore(aNode, aOffset);
1.1549 + }
1.1550 + else
1.1551 + {
1.1552 + // use wspoint version of GetCharBefore()
1.1553 + WSPoint point(aNode,aOffset,0);
1.1554 + return GetCharBefore(point);
1.1555 + }
1.1556 +}
1.1557 +
1.1558 +nsWSRunObject::WSPoint
1.1559 +nsWSRunObject::GetCharAfter(const WSPoint &aPoint)
1.1560 +{
1.1561 + MOZ_ASSERT(aPoint.mTextNode);
1.1562 +
1.1563 + WSPoint outPoint;
1.1564 + outPoint.mTextNode = nullptr;
1.1565 + outPoint.mOffset = 0;
1.1566 + outPoint.mChar = 0;
1.1567 +
1.1568 + nsCOMPtr<nsIDOMNode> pointTextNode(do_QueryInterface(aPoint.mTextNode));
1.1569 + int32_t idx = mNodeArray.IndexOf(pointTextNode);
1.1570 + if (idx == -1) {
1.1571 + // can't find point, but it's not an error
1.1572 + return outPoint;
1.1573 + }
1.1574 + int32_t numNodes = mNodeArray.Count();
1.1575 +
1.1576 + if (uint16_t(aPoint.mOffset) < aPoint.mTextNode->TextLength())
1.1577 + {
1.1578 + outPoint = aPoint;
1.1579 + outPoint.mChar = GetCharAt(aPoint.mTextNode, aPoint.mOffset);
1.1580 + return outPoint;
1.1581 + } else if (idx + 1 < (int32_t)numNodes) {
1.1582 + nsIDOMNode* node = mNodeArray[idx+1];
1.1583 + MOZ_ASSERT(node);
1.1584 + outPoint.mTextNode = do_QueryInterface(node);
1.1585 + if (!outPoint.mTextNode->IsNodeOfType(nsINode::eDATA_NODE)) {
1.1586 + // Not sure if this is needed, but it'll maintain the same
1.1587 + // functionality
1.1588 + outPoint.mTextNode = nullptr;
1.1589 + }
1.1590 + outPoint.mOffset = 0;
1.1591 + outPoint.mChar = GetCharAt(outPoint.mTextNode, 0);
1.1592 + }
1.1593 + return outPoint;
1.1594 +}
1.1595 +
1.1596 +nsWSRunObject::WSPoint
1.1597 +nsWSRunObject::GetCharBefore(const WSPoint &aPoint)
1.1598 +{
1.1599 + MOZ_ASSERT(aPoint.mTextNode);
1.1600 +
1.1601 + WSPoint outPoint;
1.1602 + outPoint.mTextNode = nullptr;
1.1603 + outPoint.mOffset = 0;
1.1604 + outPoint.mChar = 0;
1.1605 +
1.1606 + nsCOMPtr<nsIDOMNode> pointTextNode(do_QueryInterface(aPoint.mTextNode));
1.1607 + int32_t idx = mNodeArray.IndexOf(pointTextNode);
1.1608 + if (idx == -1) {
1.1609 + // can't find point, but it's not an error
1.1610 + return outPoint;
1.1611 + }
1.1612 +
1.1613 + if (aPoint.mOffset != 0)
1.1614 + {
1.1615 + outPoint = aPoint;
1.1616 + outPoint.mOffset--;
1.1617 + outPoint.mChar = GetCharAt(aPoint.mTextNode, aPoint.mOffset-1);
1.1618 + return outPoint;
1.1619 + }
1.1620 + else if (idx)
1.1621 + {
1.1622 + nsIDOMNode* node = mNodeArray[idx-1];
1.1623 + MOZ_ASSERT(node);
1.1624 + outPoint.mTextNode = do_QueryInterface(node);
1.1625 +
1.1626 + uint32_t len = outPoint.mTextNode->TextLength();
1.1627 +
1.1628 + if (len)
1.1629 + {
1.1630 + outPoint.mOffset = len-1;
1.1631 + outPoint.mChar = GetCharAt(outPoint.mTextNode, len-1);
1.1632 + }
1.1633 + }
1.1634 + return outPoint;
1.1635 +}
1.1636 +
1.1637 +nsresult
1.1638 +nsWSRunObject::ConvertToNBSP(WSPoint aPoint, AreaRestriction aAR)
1.1639 +{
1.1640 + // MOOSE: this routine needs to be modified to preserve the integrity of the
1.1641 + // wsFragment info.
1.1642 + NS_ENSURE_TRUE(aPoint.mTextNode, NS_ERROR_NULL_POINTER);
1.1643 +
1.1644 + if (aAR == eOutsideUserSelectAll)
1.1645 + {
1.1646 + nsCOMPtr<nsIDOMNode> domnode = do_QueryInterface(aPoint.mTextNode);
1.1647 + if (domnode)
1.1648 + {
1.1649 + nsCOMPtr<nsIDOMNode> san = mHTMLEditor->FindUserSelectAllNode(domnode);
1.1650 + if (san)
1.1651 + return NS_OK;
1.1652 + }
1.1653 + }
1.1654 +
1.1655 + nsCOMPtr<nsIDOMCharacterData> textNode(do_QueryInterface(aPoint.mTextNode));
1.1656 + NS_ENSURE_TRUE(textNode, NS_ERROR_NULL_POINTER);
1.1657 + nsCOMPtr<nsIDOMNode> node(do_QueryInterface(textNode));
1.1658 +
1.1659 + // first, insert an nbsp
1.1660 + nsAutoTxnsConserveSelection dontSpazMySelection(mHTMLEditor);
1.1661 + nsAutoString nbspStr(nbsp);
1.1662 + nsresult res = mHTMLEditor->InsertTextIntoTextNodeImpl(nbspStr, textNode, aPoint.mOffset, true);
1.1663 + NS_ENSURE_SUCCESS(res, res);
1.1664 +
1.1665 + // next, find range of ws it will replace
1.1666 + nsCOMPtr<nsIDOMNode> startNode, endNode;
1.1667 + int32_t startOffset=0, endOffset=0;
1.1668 +
1.1669 + GetAsciiWSBounds(eAfter, node, aPoint.mOffset+1, address_of(startNode),
1.1670 + &startOffset, address_of(endNode), &endOffset);
1.1671 +
1.1672 + // finally, delete that replaced ws, if any
1.1673 + if (startNode)
1.1674 + {
1.1675 + res = DeleteChars(startNode, startOffset, endNode, endOffset);
1.1676 + }
1.1677 +
1.1678 + return res;
1.1679 +}
1.1680 +
1.1681 +void
1.1682 +nsWSRunObject::GetAsciiWSBounds(int16_t aDir, nsIDOMNode *aNode, int32_t aOffset,
1.1683 + nsCOMPtr<nsIDOMNode> *outStartNode, int32_t *outStartOffset,
1.1684 + nsCOMPtr<nsIDOMNode> *outEndNode, int32_t *outEndOffset)
1.1685 +{
1.1686 + MOZ_ASSERT(aNode && outStartNode && outEndNode);
1.1687 +
1.1688 + nsCOMPtr<nsIDOMNode> startNode, endNode;
1.1689 + int32_t startOffset=0, endOffset=0;
1.1690 +
1.1691 + if (aDir & eAfter)
1.1692 + {
1.1693 + WSPoint point = GetCharAfter(aNode, aOffset);
1.1694 + if (point.mTextNode) {
1.1695 + // we found a text node, at least
1.1696 + endNode = do_QueryInterface(point.mTextNode);
1.1697 + endOffset = point.mOffset;
1.1698 + startNode = endNode;
1.1699 + startOffset = endOffset;
1.1700 +
1.1701 + // scan ahead to end of ascii ws
1.1702 + while (nsCRT::IsAsciiSpace(point.mChar))
1.1703 + {
1.1704 + endNode = do_QueryInterface(point.mTextNode);
1.1705 + point.mOffset++; // endOffset is _after_ ws
1.1706 + endOffset = point.mOffset;
1.1707 + point = GetCharAfter(point);
1.1708 + if (!point.mTextNode) {
1.1709 + break;
1.1710 + }
1.1711 + }
1.1712 + }
1.1713 + }
1.1714 +
1.1715 + if (aDir & eBefore)
1.1716 + {
1.1717 + WSPoint point = GetCharBefore(aNode, aOffset);
1.1718 + if (point.mTextNode) {
1.1719 + // we found a text node, at least
1.1720 + startNode = do_QueryInterface(point.mTextNode);
1.1721 + startOffset = point.mOffset+1;
1.1722 + if (!endNode)
1.1723 + {
1.1724 + endNode = startNode;
1.1725 + endOffset = startOffset;
1.1726 + }
1.1727 +
1.1728 + // scan back to start of ascii ws
1.1729 + while (nsCRT::IsAsciiSpace(point.mChar))
1.1730 + {
1.1731 + startNode = do_QueryInterface(point.mTextNode);
1.1732 + startOffset = point.mOffset;
1.1733 + point = GetCharBefore(point);
1.1734 + if (!point.mTextNode) {
1.1735 + break;
1.1736 + }
1.1737 + }
1.1738 + }
1.1739 + }
1.1740 +
1.1741 + *outStartNode = startNode;
1.1742 + *outStartOffset = startOffset;
1.1743 + *outEndNode = endNode;
1.1744 + *outEndOffset = endOffset;
1.1745 +}
1.1746 +
1.1747 +void
1.1748 +nsWSRunObject::FindRun(nsIDOMNode *aNode, int32_t aOffset, WSFragment **outRun, bool after)
1.1749 +{
1.1750 + *outRun = nullptr;
1.1751 + // given a dompoint, find the ws run that is before or after it, as caller needs
1.1752 + MOZ_ASSERT(aNode && outRun);
1.1753 +
1.1754 + WSFragment *run = mStartRun;
1.1755 + while (run)
1.1756 + {
1.1757 + int16_t comp = nsContentUtils::ComparePoints(aNode, aOffset, run->mStartNode,
1.1758 + run->mStartOffset);
1.1759 + if (comp <= 0)
1.1760 + {
1.1761 + if (after)
1.1762 + {
1.1763 + *outRun = run;
1.1764 + }
1.1765 + else // before
1.1766 + {
1.1767 + *outRun = nullptr;
1.1768 + }
1.1769 + return;
1.1770 + }
1.1771 + comp = nsContentUtils::ComparePoints(aNode, aOffset,
1.1772 + run->mEndNode, run->mEndOffset);
1.1773 + if (comp < 0)
1.1774 + {
1.1775 + *outRun = run;
1.1776 + return;
1.1777 + }
1.1778 + else if (comp == 0)
1.1779 + {
1.1780 + if (after)
1.1781 + {
1.1782 + *outRun = run->mRight;
1.1783 + }
1.1784 + else // before
1.1785 + {
1.1786 + *outRun = run;
1.1787 + }
1.1788 + return;
1.1789 + }
1.1790 + if (!run->mRight)
1.1791 + {
1.1792 + if (after)
1.1793 + {
1.1794 + *outRun = nullptr;
1.1795 + }
1.1796 + else // before
1.1797 + {
1.1798 + *outRun = run;
1.1799 + }
1.1800 + return;
1.1801 + }
1.1802 + run = run->mRight;
1.1803 + }
1.1804 +}
1.1805 +
1.1806 +char16_t
1.1807 +nsWSRunObject::GetCharAt(nsIContent *aTextNode, int32_t aOffset)
1.1808 +{
1.1809 + // return 0 if we can't get a char, for whatever reason
1.1810 + NS_ENSURE_TRUE(aTextNode, 0);
1.1811 +
1.1812 + int32_t len = int32_t(aTextNode->TextLength());
1.1813 + if (aOffset < 0 || aOffset >= len)
1.1814 + return 0;
1.1815 +
1.1816 + return aTextNode->GetText()->CharAt(aOffset);
1.1817 +}
1.1818 +
1.1819 +nsWSRunObject::WSPoint
1.1820 +nsWSRunObject::GetWSPointAfter(nsIDOMNode *aNode, int32_t aOffset)
1.1821 +{
1.1822 + // Note: only to be called if aNode is not a ws node.
1.1823 +
1.1824 + // binary search on wsnodes
1.1825 + int32_t numNodes, firstNum, curNum, lastNum;
1.1826 + numNodes = mNodeArray.Count();
1.1827 +
1.1828 + if (!numNodes) {
1.1829 + // do nothing if there are no nodes to search
1.1830 + WSPoint outPoint;
1.1831 + return outPoint;
1.1832 + }
1.1833 +
1.1834 + firstNum = 0;
1.1835 + curNum = numNodes/2;
1.1836 + lastNum = numNodes;
1.1837 + int16_t cmp=0;
1.1838 + nsCOMPtr<nsIDOMNode> curNode;
1.1839 +
1.1840 + // begin binary search
1.1841 + // we do this because we need to minimize calls to ComparePoints(),
1.1842 + // which is mongo expensive
1.1843 + while (curNum != lastNum)
1.1844 + {
1.1845 + curNode = mNodeArray[curNum];
1.1846 + cmp = nsContentUtils::ComparePoints(aNode, aOffset, curNode, 0);
1.1847 + if (cmp < 0)
1.1848 + lastNum = curNum;
1.1849 + else
1.1850 + firstNum = curNum + 1;
1.1851 + curNum = (lastNum - firstNum) / 2 + firstNum;
1.1852 + NS_ASSERTION(firstNum <= curNum && curNum <= lastNum, "Bad binary search");
1.1853 + }
1.1854 +
1.1855 + // When the binary search is complete, we always know that the current node
1.1856 + // is the same as the end node, which is always past our range. Therefore,
1.1857 + // we've found the node immediately after the point of interest.
1.1858 + if (curNum == mNodeArray.Count()) {
1.1859 + // they asked for past our range (it's after the last node). GetCharAfter
1.1860 + // will do the work for us when we pass it the last index of the last node.
1.1861 + nsCOMPtr<nsIContent> textNode(do_QueryInterface(mNodeArray[curNum-1]));
1.1862 + WSPoint point(textNode, textNode->TextLength(), 0);
1.1863 + return GetCharAfter(point);
1.1864 + } else {
1.1865 + // The char after the point of interest is the first character of our range.
1.1866 + nsCOMPtr<nsIContent> textNode(do_QueryInterface(mNodeArray[curNum]));
1.1867 + WSPoint point(textNode, 0, 0);
1.1868 + return GetCharAfter(point);
1.1869 + }
1.1870 +}
1.1871 +
1.1872 +nsWSRunObject::WSPoint
1.1873 +nsWSRunObject::GetWSPointBefore(nsIDOMNode *aNode, int32_t aOffset)
1.1874 +{
1.1875 + // Note: only to be called if aNode is not a ws node.
1.1876 +
1.1877 + // binary search on wsnodes
1.1878 + int32_t numNodes, firstNum, curNum, lastNum;
1.1879 + numNodes = mNodeArray.Count();
1.1880 +
1.1881 + if (!numNodes) {
1.1882 + // do nothing if there are no nodes to search
1.1883 + WSPoint outPoint;
1.1884 + return outPoint;
1.1885 + }
1.1886 +
1.1887 + firstNum = 0;
1.1888 + curNum = numNodes/2;
1.1889 + lastNum = numNodes;
1.1890 + int16_t cmp=0;
1.1891 + nsCOMPtr<nsIDOMNode> curNode;
1.1892 +
1.1893 + // begin binary search
1.1894 + // we do this because we need to minimize calls to ComparePoints(),
1.1895 + // which is mongo expensive
1.1896 + while (curNum != lastNum)
1.1897 + {
1.1898 + curNode = mNodeArray[curNum];
1.1899 + cmp = nsContentUtils::ComparePoints(aNode, aOffset, curNode, 0);
1.1900 + if (cmp < 0)
1.1901 + lastNum = curNum;
1.1902 + else
1.1903 + firstNum = curNum + 1;
1.1904 + curNum = (lastNum - firstNum) / 2 + firstNum;
1.1905 + NS_ASSERTION(firstNum <= curNum && curNum <= lastNum, "Bad binary search");
1.1906 + }
1.1907 +
1.1908 + // When the binary search is complete, we always know that the current node
1.1909 + // is the same as the end node, which is always past our range. Therefore,
1.1910 + // we've found the node immediately after the point of interest.
1.1911 + if (curNum == mNodeArray.Count()) {
1.1912 + // get the point before the end of the last node, we can pass the length
1.1913 + // of the node into GetCharBefore, and it will return the last character.
1.1914 + nsCOMPtr<nsIContent> textNode(do_QueryInterface(mNodeArray[curNum - 1]));
1.1915 + WSPoint point(textNode, textNode->TextLength(), 0);
1.1916 + return GetCharBefore(point);
1.1917 + } else {
1.1918 + // we can just ask the current node for the point immediately before it,
1.1919 + // it will handle moving to the previous node (if any) and returning the
1.1920 + // appropriate character
1.1921 + nsCOMPtr<nsIContent> textNode(do_QueryInterface(mNodeArray[curNum]));
1.1922 + WSPoint point(textNode, 0, 0);
1.1923 + return GetCharBefore(point);
1.1924 + }
1.1925 +}
1.1926 +
1.1927 +nsresult
1.1928 +nsWSRunObject::CheckTrailingNBSPOfRun(WSFragment *aRun)
1.1929 +{
1.1930 + // try to change an nbsp to a space, if possible, just to prevent nbsp proliferation.
1.1931 + // examine what is before and after the trailing nbsp, if any.
1.1932 + NS_ENSURE_TRUE(aRun, NS_ERROR_NULL_POINTER);
1.1933 + nsresult res;
1.1934 + bool leftCheck = false;
1.1935 + bool spaceNBSP = false;
1.1936 + bool rightCheck = false;
1.1937 +
1.1938 + // confirm run is normalWS
1.1939 + if (aRun->mType != WSType::normalWS) {
1.1940 + return NS_ERROR_FAILURE;
1.1941 + }
1.1942 +
1.1943 + // first check for trailing nbsp
1.1944 + WSPoint thePoint = GetCharBefore(aRun->mEndNode, aRun->mEndOffset);
1.1945 + if (thePoint.mTextNode && thePoint.mChar == nbsp) {
1.1946 + // now check that what is to the left of it is compatible with replacing nbsp with space
1.1947 + WSPoint prevPoint = GetCharBefore(thePoint);
1.1948 + if (prevPoint.mTextNode) {
1.1949 + if (!nsCRT::IsAsciiSpace(prevPoint.mChar)) leftCheck = true;
1.1950 + else spaceNBSP = true;
1.1951 + } else if (aRun->mLeftType == WSType::text) {
1.1952 + leftCheck = true;
1.1953 + } else if (aRun->mLeftType == WSType::special) {
1.1954 + leftCheck = true;
1.1955 + }
1.1956 + if (leftCheck || spaceNBSP)
1.1957 + {
1.1958 + // now check that what is to the right of it is compatible with replacing nbsp with space
1.1959 + if (aRun->mRightType == WSType::text) {
1.1960 + rightCheck = true;
1.1961 + }
1.1962 + if (aRun->mRightType == WSType::special) {
1.1963 + rightCheck = true;
1.1964 + }
1.1965 + if (aRun->mRightType == WSType::br) {
1.1966 + rightCheck = true;
1.1967 + }
1.1968 + if ((aRun->mRightType & WSType::block) &&
1.1969 + IsBlockNode(nsCOMPtr<nsIDOMNode>(GetWSBoundingParent()))) {
1.1970 + // we are at a block boundary. Insert a <br>. Why? Well, first note that
1.1971 + // the br will have no visible effect since it is up against a block boundary.
1.1972 + // |foo<br><p>bar| renders like |foo<p>bar| and similarly
1.1973 + // |<p>foo<br></p>bar| renders like |<p>foo</p>bar|. What this <br> addition
1.1974 + // gets us is the ability to convert a trailing nbsp to a space. Consider:
1.1975 + // |<body>foo. '</body>|, where ' represents selection. User types space attempting
1.1976 + // to put 2 spaces after the end of their sentence. We used to do this as:
1.1977 + // |<body>foo.  </body>| This caused problems with soft wrapping: the nbsp
1.1978 + // would wrap to the next line, which looked attrocious. If you try to do:
1.1979 + // |<body>foo.  </body>| instead, the trailing space is invisible because it
1.1980 + // is against a block boundary. If you do: |<body>foo.  </body>| then
1.1981 + // you get an even uglier soft wrapping problem, where foo is on one line until
1.1982 + // you type the final space, and then "foo " jumps down to the next line. Ugh.
1.1983 + // The best way I can find out of this is to throw in a harmless <br>
1.1984 + // here, which allows us to do: |<body>foo.  <br></body>|, which doesn't
1.1985 + // cause foo to jump lines, doesn't cause spaces to show up at the beginning of
1.1986 + // soft wrapped lines, and lets the user see 2 spaces when they type 2 spaces.
1.1987 +
1.1988 + nsCOMPtr<nsIDOMNode> brNode;
1.1989 + res = mHTMLEditor->CreateBR(aRun->mEndNode, aRun->mEndOffset, address_of(brNode));
1.1990 + NS_ENSURE_SUCCESS(res, res);
1.1991 +
1.1992 + // refresh thePoint, prevPoint
1.1993 + thePoint = GetCharBefore(aRun->mEndNode, aRun->mEndOffset);
1.1994 + prevPoint = GetCharBefore(thePoint);
1.1995 + rightCheck = true;
1.1996 + }
1.1997 + }
1.1998 + if (leftCheck && rightCheck)
1.1999 + {
1.2000 + // now replace nbsp with space
1.2001 + // first, insert a space
1.2002 + nsCOMPtr<nsIDOMCharacterData> textNode(do_QueryInterface(thePoint.mTextNode));
1.2003 + NS_ENSURE_TRUE(textNode, NS_ERROR_NULL_POINTER);
1.2004 + nsAutoTxnsConserveSelection dontSpazMySelection(mHTMLEditor);
1.2005 + nsAutoString spaceStr(char16_t(32));
1.2006 + res = mHTMLEditor->InsertTextIntoTextNodeImpl(spaceStr, textNode, thePoint.mOffset, true);
1.2007 + NS_ENSURE_SUCCESS(res, res);
1.2008 +
1.2009 + // finally, delete that nbsp
1.2010 + nsCOMPtr<nsIDOMNode> delNode(do_QueryInterface(thePoint.mTextNode));
1.2011 + res = DeleteChars(delNode, thePoint.mOffset+1, delNode, thePoint.mOffset+2);
1.2012 + NS_ENSURE_SUCCESS(res, res);
1.2013 + }
1.2014 + else if (!mPRE && spaceNBSP && rightCheck) // don't mess with this preformatted for now.
1.2015 + {
1.2016 + // we have a run of ascii whitespace (which will render as one space)
1.2017 + // followed by an nbsp (which is at the end of the whitespace run). Let's
1.2018 + // switch their order. This will insure that if someone types two spaces
1.2019 + // after a sentence, and the editor softwraps at this point, the spaces wont
1.2020 + // be split across lines, which looks ugly and is bad for the moose.
1.2021 +
1.2022 + nsCOMPtr<nsIDOMNode> startNode, endNode, thenode(do_QueryInterface(prevPoint.mTextNode));
1.2023 + int32_t startOffset, endOffset;
1.2024 + GetAsciiWSBounds(eBoth, thenode, prevPoint.mOffset+1, address_of(startNode),
1.2025 + &startOffset, address_of(endNode), &endOffset);
1.2026 +
1.2027 + // delete that nbsp
1.2028 + nsCOMPtr<nsIDOMNode> delNode(do_QueryInterface(thePoint.mTextNode));
1.2029 + res = DeleteChars(delNode, thePoint.mOffset, delNode, thePoint.mOffset+1);
1.2030 + NS_ENSURE_SUCCESS(res, res);
1.2031 +
1.2032 + // finally, insert that nbsp before the ascii ws run
1.2033 + nsAutoTxnsConserveSelection dontSpazMySelection(mHTMLEditor);
1.2034 + nsAutoString nbspStr(nbsp);
1.2035 + nsCOMPtr<nsIDOMCharacterData> textNode(do_QueryInterface(startNode));
1.2036 + res = mHTMLEditor->InsertTextIntoTextNodeImpl(nbspStr, textNode, startOffset, true);
1.2037 + NS_ENSURE_SUCCESS(res, res);
1.2038 + }
1.2039 + }
1.2040 + return NS_OK;
1.2041 +}
1.2042 +
1.2043 +nsresult
1.2044 +nsWSRunObject::CheckTrailingNBSP(WSFragment *aRun, nsIDOMNode *aNode, int32_t aOffset)
1.2045 +{
1.2046 + // try to change an nbsp to a space, if possible, just to prevent nbsp proliferation.
1.2047 + // this routine is called when we about to make this point in the ws abut an inserted break
1.2048 + // or text, so we don't have to worry about what is after it. What is after it now will
1.2049 + // end up after the inserted object.
1.2050 + NS_ENSURE_TRUE(aRun && aNode, NS_ERROR_NULL_POINTER);
1.2051 + bool canConvert = false;
1.2052 + WSPoint thePoint = GetCharBefore(aNode, aOffset);
1.2053 + if (thePoint.mTextNode && thePoint.mChar == nbsp) {
1.2054 + WSPoint prevPoint = GetCharBefore(thePoint);
1.2055 + if (prevPoint.mTextNode) {
1.2056 + if (!nsCRT::IsAsciiSpace(prevPoint.mChar)) canConvert = true;
1.2057 + } else if (aRun->mLeftType == WSType::text) {
1.2058 + canConvert = true;
1.2059 + } else if (aRun->mLeftType == WSType::special) {
1.2060 + canConvert = true;
1.2061 + }
1.2062 + }
1.2063 + if (canConvert)
1.2064 + {
1.2065 + // first, insert a space
1.2066 + nsCOMPtr<nsIDOMCharacterData> textNode(do_QueryInterface(thePoint.mTextNode));
1.2067 + NS_ENSURE_TRUE(textNode, NS_ERROR_NULL_POINTER);
1.2068 + nsAutoTxnsConserveSelection dontSpazMySelection(mHTMLEditor);
1.2069 + nsAutoString spaceStr(char16_t(32));
1.2070 + nsresult res = mHTMLEditor->InsertTextIntoTextNodeImpl(spaceStr, textNode,
1.2071 + thePoint.mOffset,
1.2072 + true);
1.2073 + NS_ENSURE_SUCCESS(res, res);
1.2074 +
1.2075 + // finally, delete that nbsp
1.2076 + nsCOMPtr<nsIDOMNode> delNode(do_QueryInterface(thePoint.mTextNode));
1.2077 + res = DeleteChars(delNode, thePoint.mOffset+1, delNode, thePoint.mOffset+2);
1.2078 + NS_ENSURE_SUCCESS(res, res);
1.2079 + }
1.2080 + return NS_OK;
1.2081 +}
1.2082 +
1.2083 +nsresult
1.2084 +nsWSRunObject::CheckLeadingNBSP(WSFragment *aRun, nsIDOMNode *aNode, int32_t aOffset)
1.2085 +{
1.2086 + // try to change an nbsp to a space, if possible, just to prevent nbsp proliferation
1.2087 + // this routine is called when we about to make this point in the ws abut an inserted
1.2088 + // text, so we don't have to worry about what is before it. What is before it now will
1.2089 + // end up before the inserted text.
1.2090 + bool canConvert = false;
1.2091 + WSPoint thePoint = GetCharAfter(aNode, aOffset);
1.2092 + if (thePoint.mChar == nbsp) {
1.2093 + WSPoint tmp = thePoint;
1.2094 + tmp.mOffset++; // we want to be after thePoint
1.2095 + WSPoint nextPoint = GetCharAfter(tmp);
1.2096 + if (nextPoint.mTextNode) {
1.2097 + if (!nsCRT::IsAsciiSpace(nextPoint.mChar)) canConvert = true;
1.2098 + } else if (aRun->mRightType == WSType::text) {
1.2099 + canConvert = true;
1.2100 + } else if (aRun->mRightType == WSType::special) {
1.2101 + canConvert = true;
1.2102 + } else if (aRun->mRightType == WSType::br) {
1.2103 + canConvert = true;
1.2104 + }
1.2105 + }
1.2106 + if (canConvert)
1.2107 + {
1.2108 + // first, insert a space
1.2109 + nsCOMPtr<nsIDOMCharacterData> textNode(do_QueryInterface(thePoint.mTextNode));
1.2110 + NS_ENSURE_TRUE(textNode, NS_ERROR_NULL_POINTER);
1.2111 + nsAutoTxnsConserveSelection dontSpazMySelection(mHTMLEditor);
1.2112 + nsAutoString spaceStr(char16_t(32));
1.2113 + nsresult res = mHTMLEditor->InsertTextIntoTextNodeImpl(spaceStr, textNode,
1.2114 + thePoint.mOffset,
1.2115 + true);
1.2116 + NS_ENSURE_SUCCESS(res, res);
1.2117 +
1.2118 + // finally, delete that nbsp
1.2119 + nsCOMPtr<nsIDOMNode> delNode(do_QueryInterface(thePoint.mTextNode));
1.2120 + res = DeleteChars(delNode, thePoint.mOffset+1, delNode, thePoint.mOffset+2);
1.2121 + NS_ENSURE_SUCCESS(res, res);
1.2122 + }
1.2123 + return NS_OK;
1.2124 +}
1.2125 +
1.2126 +
1.2127 +nsresult
1.2128 +nsWSRunObject::ScrubBlockBoundaryInner(nsHTMLEditor *aHTMLEd,
1.2129 + nsCOMPtr<nsIDOMNode> *aBlock,
1.2130 + BlockBoundary aBoundary)
1.2131 +{
1.2132 + NS_ENSURE_TRUE(aBlock && aHTMLEd, NS_ERROR_NULL_POINTER);
1.2133 + int32_t offset=0;
1.2134 + if (aBoundary == kBlockEnd)
1.2135 + {
1.2136 + uint32_t uOffset;
1.2137 + aHTMLEd->GetLengthOfDOMNode(*aBlock, uOffset);
1.2138 + offset = uOffset;
1.2139 + }
1.2140 + nsWSRunObject theWSObj(aHTMLEd, *aBlock, offset);
1.2141 + return theWSObj.Scrub();
1.2142 +}
1.2143 +
1.2144 +
1.2145 +nsresult
1.2146 +nsWSRunObject::Scrub()
1.2147 +{
1.2148 + WSFragment *run = mStartRun;
1.2149 + while (run)
1.2150 + {
1.2151 + if (run->mType & (WSType::leadingWS | WSType::trailingWS)) {
1.2152 + nsresult res = DeleteChars(run->mStartNode, run->mStartOffset, run->mEndNode, run->mEndOffset);
1.2153 + NS_ENSURE_SUCCESS(res, res);
1.2154 + }
1.2155 + run = run->mRight;
1.2156 + }
1.2157 + return NS_OK;
1.2158 +}
