NS_IMETHODIMP
nsTextEditRules::DidDoAction(nsISelection *aSelection,
nsRulesInfo *aInfo, nsresult aResult)
{
// don't let any txns in here move the selection around behind our back.
// Note that this won't prevent explicit selection setting from working.
nsAutoTxnsConserveSelection dontSpazMySelection(mEditor);
NS_ENSURE_TRUE(aSelection && aInfo, NS_ERROR_NULL_POINTER);
// my kingdom for dynamic cast
nsTextRulesInfo *info = static_cast<nsTextRulesInfo*>(aInfo);
switch (info->action)
{
case kInsertBreak:
return DidInsertBreak(aSelection, aResult);
case kInsertText:
case kInsertTextIME:
return DidInsertText(aSelection, aResult);
case kDeleteSelection:
return DidDeleteSelection(aSelection, info->collapsedAction, aResult);
case kUndo:
return DidUndo(aSelection, aResult);
case kRedo:
return DidRedo(aSelection, aResult);
case kSetTextProperty:
return DidSetTextProperty(aSelection, aResult);
case kRemoveTextProperty:
return DidRemoveTextProperty(aSelection, aResult);
case kOutputText:
return DidOutputText(aSelection, aResult);
}
// Don't fail on transactions we don't handle here!
return NS_OK;
}
nsresult
TextEditRules::WillInsertText(EditAction aAction,
Selection* aSelection,
bool* aCancel,
bool* aHandled,
const nsAString* inString,
nsAString* outString,
int32_t aMaxLength)
{
if (!aSelection || !aCancel || !aHandled) {
return NS_ERROR_NULL_POINTER;
}
if (inString->IsEmpty() && aAction != EditAction::insertIMEText) {
// HACK: this is a fix for bug 19395
// I can't outlaw all empty insertions
// because IME transaction depend on them
// There is more work to do to make the
// world safe for IME.
*aCancel = true;
*aHandled = false;
return NS_OK;
}
// initialize out param
*aCancel = false;
*aHandled = true;
// handle docs with a max length
// NOTE, this function copies inString into outString for us.
bool truncated = false;
nsresult rv = TruncateInsertionIfNeeded(aSelection, inString, outString,
aMaxLength, &truncated);
NS_ENSURE_SUCCESS(rv, rv);
// If we're exceeding the maxlength when composing IME, we need to clean up
// the composing text, so we shouldn't return early.
if (truncated && outString->IsEmpty() &&
aAction != EditAction::insertIMEText) {
*aCancel = true;
return NS_OK;
}
int32_t start = 0;
int32_t end = 0;
// handle password field docs
if (IsPasswordEditor()) {
NS_ENSURE_STATE(mTextEditor);
nsContentUtils::GetSelectionInTextControl(aSelection,
mTextEditor->GetRoot(),
start, end);
}
// if the selection isn't collapsed, delete it.
bool bCollapsed;
rv = aSelection->GetIsCollapsed(&bCollapsed);
NS_ENSURE_SUCCESS(rv, rv);
if (!bCollapsed) {
NS_ENSURE_STATE(mTextEditor);
rv = mTextEditor->DeleteSelection(nsIEditor::eNone, nsIEditor::eStrip);
NS_ENSURE_SUCCESS(rv, rv);
}
WillInsert(*aSelection, aCancel);
// initialize out param
// we want to ignore result of WillInsert()
*aCancel = false;
// handle password field data
// this has the side effect of changing all the characters in aOutString
// to the replacement character
if (IsPasswordEditor() &&
aAction == EditAction::insertIMEText) {
RemoveIMETextFromPWBuf(start, outString);
}
// People have lots of different ideas about what text fields
// should do with multiline pastes. See bugs 21032, 23485, 23485, 50935.
// The six possible options are:
// 0. paste newlines intact
// 1. paste up to the first newline (default)
// 2. replace newlines with spaces
// 3. strip newlines
// 4. replace with commas
// 5. strip newlines and surrounding whitespace
// So find out what we're expected to do:
if (IsSingleLineEditor()) {
nsAutoString tString(*outString);
NS_ENSURE_STATE(mTextEditor);
HandleNewLines(tString, mTextEditor->mNewlineHandling);
outString->Assign(tString);
}
if (IsPasswordEditor()) {
// manage the password buffer
mPasswordText.Insert(*outString, start);
if (LookAndFeel::GetEchoPassword() && !DontEchoPassword()) {
HideLastPWInput();
mLastStart = start;
mLastLength = outString->Length();
if (mTimer) {
mTimer->Cancel();
} else {
mTimer = do_CreateInstance("@mozilla.org/timer;1", &rv);
NS_ENSURE_SUCCESS(rv, rv);
}
mTimer->InitWithCallback(this, LookAndFeel::GetPasswordMaskDelay(),
nsITimer::TYPE_ONE_SHOT);
} else {
FillBufWithPWChars(outString, outString->Length());
}
}
// get the (collapsed) selection location
NS_ENSURE_STATE(aSelection->GetRangeAt(0));
nsCOMPtr<nsINode> selNode = aSelection->GetRangeAt(0)->GetStartParent();
int32_t selOffset = aSelection->GetRangeAt(0)->StartOffset();
NS_ENSURE_STATE(selNode);
// don't put text in places that can't have it
NS_ENSURE_STATE(mTextEditor);
if (!EditorBase::IsTextNode(selNode) &&
!mTextEditor->CanContainTag(*selNode, *nsGkAtoms::textTagName)) {
return NS_ERROR_FAILURE;
}
// we need to get the doc
NS_ENSURE_STATE(mTextEditor);
nsCOMPtr<nsIDocument> doc = mTextEditor->GetDocument();
NS_ENSURE_TRUE(doc, NS_ERROR_NOT_INITIALIZED);
if (aAction == EditAction::insertIMEText) {
NS_ENSURE_STATE(mTextEditor);
// Find better insertion point to insert text.
mTextEditor->FindBetterInsertionPoint(selNode, selOffset);
// If there is one or more IME selections, its minimum offset should be
// the insertion point.
int32_t IMESelectionOffset =
mTextEditor->GetIMESelectionStartOffsetIn(selNode);
if (IMESelectionOffset >= 0) {
selOffset = IMESelectionOffset;
}
rv = mTextEditor->InsertTextImpl(*outString, address_of(selNode),
&selOffset, doc);
NS_ENSURE_SUCCESS(rv, rv);
} else {
// aAction == EditAction::insertText; find where we are
nsCOMPtr<nsINode> curNode = selNode;
int32_t curOffset = selOffset;
// don't spaz my selection in subtransactions
NS_ENSURE_STATE(mTextEditor);
AutoTransactionsConserveSelection dontSpazMySelection(mTextEditor);
rv = mTextEditor->InsertTextImpl(*outString, address_of(curNode),
&curOffset, doc);
NS_ENSURE_SUCCESS(rv, rv);
if (curNode) {
// Make the caret attach to the inserted text, unless this text ends with a LF,
// in which case make the caret attach to the next line.
bool endsWithLF =
!outString->IsEmpty() && outString->Last() == nsCRT::LF;
aSelection->SetInterlinePosition(endsWithLF);
aSelection->Collapse(curNode, curOffset);
}
}
ASSERT_PASSWORD_LENGTHS_EQUAL()
return NS_OK;
}
nsresult
nsTextEditRules::WillInsertText(PRInt32 aAction,
nsISelection *aSelection,
PRBool *aCancel,
PRBool *aHandled,
const nsAString *inString,
nsAString *outString,
PRInt32 aMaxLength)
{
if (!aSelection || !aCancel || !aHandled) { return NS_ERROR_NULL_POINTER; }
if (inString->IsEmpty() && (aAction != kInsertTextIME))
{
// HACK: this is a fix for bug 19395
// I can't outlaw all empty insertions
// because IME transaction depend on them
// There is more work to do to make the
// world safe for IME.
*aCancel = PR_TRUE;
*aHandled = PR_FALSE;
return NS_OK;
}
// initialize out param
*aCancel = PR_FALSE;
*aHandled = PR_TRUE;
// handle docs with a max length
// NOTE, this function copies inString into outString for us.
PRBool truncated = PR_FALSE;
nsresult res = TruncateInsertionIfNeeded(aSelection, inString, outString,
aMaxLength, &truncated);
NS_ENSURE_SUCCESS(res, res);
if (truncated && outString->IsEmpty()) {
*aCancel = PR_TRUE;
return NS_OK;
}
PRUint32 start = 0;
PRUint32 end = 0;
// handle password field docs
if (IsPasswordEditor())
{
res = mEditor->GetTextSelectionOffsets(aSelection, start, end);
NS_ASSERTION((NS_SUCCEEDED(res)), "getTextSelectionOffsets failed!");
NS_ENSURE_SUCCESS(res, res);
}
// if the selection isn't collapsed, delete it.
PRBool bCollapsed;
res = aSelection->GetIsCollapsed(&bCollapsed);
NS_ENSURE_SUCCESS(res, res);
if (!bCollapsed)
{
res = mEditor->DeleteSelection(nsIEditor::eNone);
NS_ENSURE_SUCCESS(res, res);
}
res = WillInsert(aSelection, aCancel);
NS_ENSURE_SUCCESS(res, res);
// initialize out param
// we want to ignore result of WillInsert()
*aCancel = PR_FALSE;
// handle password field data
// this has the side effect of changing all the characters in aOutString
// to the replacement character
if (IsPasswordEditor())
{
if (aAction == kInsertTextIME) {
res = RemoveIMETextFromPWBuf(start, outString);
NS_ENSURE_SUCCESS(res, res);
}
}
// People have lots of different ideas about what text fields
// should do with multiline pastes. See bugs 21032, 23485, 23485, 50935.
// The six possible options are:
// 0. paste newlines intact
// 1. paste up to the first newline (default)
// 2. replace newlines with spaces
// 3. strip newlines
// 4. replace with commas
// 5. strip newlines and surrounding whitespace
// So find out what we're expected to do:
if (IsSingleLineEditor())
{
nsAutoString tString(*outString);
HandleNewLines(tString, mEditor->mNewlineHandling);
outString->Assign(tString);
}
if (IsPasswordEditor())
{
// manage the password buffer
mPasswordText.Insert(*outString, start);
nsCOMPtr<nsILookAndFeel> lookAndFeel = do_GetService(kLookAndFeelCID);
if (lookAndFeel->GetEchoPassword() && !DontEchoPassword()) {
HideLastPWInput();
mLastStart = start;
mLastLength = outString->Length();
if (mTimer)
{
mTimer->Cancel();
}
else
{
mTimer = do_CreateInstance("@mozilla.org/timer;1", &res);
NS_ENSURE_SUCCESS(res, res);
}
mTimer->InitWithCallback(this, 600, nsITimer::TYPE_ONE_SHOT);
}
else
{
res = FillBufWithPWChars(outString, outString->Length());
NS_ENSURE_SUCCESS(res, res);
}
}
// get the (collapsed) selection location
nsCOMPtr<nsIDOMNode> selNode;
PRInt32 selOffset;
res = mEditor->GetStartNodeAndOffset(aSelection, getter_AddRefs(selNode), &selOffset);
NS_ENSURE_SUCCESS(res, res);
// don't put text in places that can't have it
if (!mEditor->IsTextNode(selNode) && !mEditor->CanContainTag(selNode, NS_LITERAL_STRING("#text")))
return NS_ERROR_FAILURE;
// we need to get the doc
nsCOMPtr<nsIDOMDocument>doc;
res = mEditor->GetDocument(getter_AddRefs(doc));
NS_ENSURE_SUCCESS(res, res);
NS_ENSURE_TRUE(doc, NS_ERROR_NULL_POINTER);
if (aAction == kInsertTextIME)
{
res = mEditor->InsertTextImpl(*outString, address_of(selNode), &selOffset, doc);
NS_ENSURE_SUCCESS(res, res);
}
else // aAction == kInsertText
{
// find where we are
nsCOMPtr<nsIDOMNode> curNode = selNode;
PRInt32 curOffset = selOffset;
// don't spaz my selection in subtransactions
nsAutoTxnsConserveSelection dontSpazMySelection(mEditor);
res = mEditor->InsertTextImpl(*outString, address_of(curNode),
&curOffset, doc);
NS_ENSURE_SUCCESS(res, res);
if (curNode)
{
// Make the caret attach to the inserted text, unless this text ends with a LF,
// in which case make the caret attach to the next line.
PRBool endsWithLF =
!outString->IsEmpty() && outString->Last() == nsCRT::LF;
nsCOMPtr<nsISelectionPrivate>selPrivate(do_QueryInterface(aSelection));
selPrivate->SetInterlinePosition(endsWithLF);
aSelection->Collapse(curNode, curOffset);
}
}
ASSERT_PASSWORD_LENGTHS_EQUAL()
return res;
}
nsresult
nsTextEditRules::WillInsertText(PRInt32 aAction,
nsISelection *aSelection,
PRBool *aCancel,
PRBool *aHandled,
const nsAString *inString,
nsAString *outString,
PRInt32 aMaxLength)
{
if (!aSelection || !aCancel || !aHandled) {
return NS_ERROR_NULL_POINTER;
}
if (inString->IsEmpty() && (aAction != kInsertTextIME))
{
// HACK: this is a fix for bug 19395
// I can't outlaw all empty insertions
// because IME transaction depend on them
// There is more work to do to make the
// world safe for IME.
*aCancel = PR_TRUE;
*aHandled = PR_FALSE;
return NS_OK;
}
// initialize out param
*aCancel = PR_FALSE;
*aHandled = PR_TRUE;
// handle docs with a max length
// NOTE, this function copies inString into outString for us.
nsresult res = TruncateInsertionIfNeeded(aSelection, inString, outString, aMaxLength);
NS_ENSURE_SUCCESS(res, res);
PRUint32 start = 0;
PRUint32 end = 0;
// handle password field docs
if (IsPasswordEditor())
{
res = mEditor->GetTextSelectionOffsets(aSelection, start, end);
NS_ASSERTION((NS_SUCCEEDED(res)), "getTextSelectionOffsets failed!");
NS_ENSURE_SUCCESS(res, res);
}
// if the selection isn't collapsed, delete it.
PRBool bCollapsed;
res = aSelection->GetIsCollapsed(&bCollapsed);
NS_ENSURE_SUCCESS(res, res);
if (!bCollapsed)
{
res = mEditor->DeleteSelection(nsIEditor::eNone);
NS_ENSURE_SUCCESS(res, res);
}
res = WillInsert(aSelection, aCancel);
NS_ENSURE_SUCCESS(res, res);
// initialize out param
// we want to ignore result of WillInsert()
*aCancel = PR_FALSE;
// handle password field data
// this has the side effect of changing all the characters in aOutString
// to the replacement character
if (IsPasswordEditor())
{
if (aAction == kInsertTextIME) {
res = RemoveIMETextFromPWBuf(start, outString);
NS_ENSURE_SUCCESS(res, res);
}
}
// People have lots of different ideas about what text fields
// should do with multiline pastes. See bugs 21032, 23485, 23485, 50935.
// The six possible options are:
// 0. paste newlines intact
// 1. paste up to the first newline (default)
// 2. replace newlines with spaces
// 3. strip newlines
// 4. replace with commas
// 5. strip newlines and surrounding whitespace
// So find out what we're expected to do:
if (IsSingleLineEditor())
{
nsAutoString tString(*outString);
HandleNewLines(tString, mEditor->mNewlineHandling);
outString->Assign(tString);
}
if (IsPasswordEditor())
{
// manage the password buffer
mPasswordText.Insert(*outString, start);
nsCOMPtr<nsILookAndFeel> lookAndFeel = do_GetService(kLookAndFeelCID);
if (lookAndFeel->GetEchoPassword() && !DontEchoPassword()) {
HideLastPWInput();
mLastStart = start;
mLastLength = outString->Length();
if (mTimer)
{
mTimer->Cancel();
}
else
{
mTimer = do_CreateInstance("@mozilla.org/timer;1", &res);
NS_ENSURE_SUCCESS(res, res);
}
mTimer->InitWithCallback(this, 600, nsITimer::TYPE_ONE_SHOT);
}
else
{
res = FillBufWithPWChars(outString, outString->Length());
NS_ENSURE_SUCCESS(res, res);
}
}
// get the (collapsed) selection location
nsCOMPtr<nsIDOMNode> selNode;
PRInt32 selOffset;
res = mEditor->GetStartNodeAndOffset(aSelection, getter_AddRefs(selNode), &selOffset);
NS_ENSURE_SUCCESS(res, res);
// don't put text in places that can't have it
if (!mEditor->IsTextNode(selNode) && !mEditor->CanContainTag(selNode, NS_LITERAL_STRING("#text")))
return NS_ERROR_FAILURE;
// we need to get the doc
nsCOMPtr<nsIDOMDocument>doc;
res = mEditor->GetDocument(getter_AddRefs(doc));
NS_ENSURE_SUCCESS(res, res);
NS_ENSURE_TRUE(doc, NS_ERROR_NULL_POINTER);
if (aAction == kInsertTextIME)
{
res = mEditor->InsertTextImpl(*outString, address_of(selNode), &selOffset, doc);
NS_ENSURE_SUCCESS(res, res);
}
else // aAction == kInsertText
{
// find where we are
nsCOMPtr<nsIDOMNode> curNode = selNode;
PRInt32 curOffset = selOffset;
// is our text going to be PREformatted?
// We remember this so that we know how to handle tabs.
PRBool isPRE;
res = mEditor->IsPreformatted(selNode, &isPRE);
NS_ENSURE_SUCCESS(res, res);
// don't spaz my selection in subtransactions
nsAutoTxnsConserveSelection dontSpazMySelection(mEditor);
nsString tString(*outString);
const PRUnichar *unicodeBuf = tString.get();
nsCOMPtr<nsIDOMNode> unused;
PRInt32 pos = 0;
// for efficiency, break out the pre case separately. This is because
// it's a lot cheaper to search the input string for only newlines than
// it is to search for both tabs and newlines.
if (isPRE)
{
while (unicodeBuf && (pos != -1) && ((PRUint32)pos < tString.Length()))
{
PRInt32 oldPos = pos;
PRInt32 subStrLen;
pos = tString.FindChar(nsCRT::LF, oldPos);
if (pos != -1)
{
subStrLen = pos - oldPos;
// if first char is newline, then use just it
if (subStrLen == 0)
subStrLen = 1;
}
else
{
subStrLen = tString.Length() - oldPos;
pos = tString.Length();
}
nsDependentSubstring subStr(tString, oldPos, subStrLen);
// is it a return?
if (subStr.EqualsLiteral(LFSTR))
{
if (IsSingleLineEditor())
{
NS_ASSERTION((mEditor->mNewlineHandling == nsIPlaintextEditor::eNewlinesPasteIntact),
"Newline improperly getting into single-line edit field!");
res = mEditor->InsertTextImpl(subStr, address_of(curNode), &curOffset, doc);
}
else
{
res = mEditor->CreateBRImpl(address_of(curNode), &curOffset, address_of(unused), nsIEditor::eNone);
// If the newline is the last character in the string, and the BR we
// just inserted is the last node in the content tree, we need to add
// a mozBR so that a blank line is created.
if (NS_SUCCEEDED(res) && curNode && pos == (PRInt32)(tString.Length() - 1))
{
nsCOMPtr<nsIDOMNode> nextChild = mEditor->GetChildAt(curNode, curOffset);
if (!nextChild)
{
// We must be at the end since there isn't a nextChild.
//
// curNode and curOffset should be set to the position after
// the BR we added above, so just create a mozBR at that position.
//
// Note that we don't update curOffset after we've created/inserted
// the mozBR since we never want the selection to be placed after it.
res = CreateMozBR(curNode, curOffset, address_of(unused));
}
}
}
pos++;
}
else
{
res = mEditor->InsertTextImpl(subStr, address_of(curNode), &curOffset, doc);
}
NS_ENSURE_SUCCESS(res, res);
}
}
else
{
char specialChars[] = {TAB, nsCRT::LF, 0};
while (unicodeBuf && (pos != -1) && ((PRUint32)pos < tString.Length()))
{
PRInt32 oldPos = pos;
PRInt32 subStrLen;
pos = tString.FindCharInSet(specialChars, oldPos);
if (pos != -1)
{
subStrLen = pos - oldPos;
// if first char is newline, then use just it
if (subStrLen == 0)
subStrLen = 1;
}
else
{
subStrLen = tString.Length() - oldPos;
pos = tString.Length();
}
nsDependentSubstring subStr(tString, oldPos, subStrLen);
// is it a tab?
if (subStr.EqualsLiteral("\t"))
{
res = mEditor->InsertTextImpl(NS_LITERAL_STRING(" "), address_of(curNode), &curOffset, doc);
pos++;
}
// is it a return?
else if (subStr.EqualsLiteral(LFSTR))
{
res = mEditor->CreateBRImpl(address_of(curNode), &curOffset, address_of(unused), nsIEditor::eNone);
pos++;
}
else
{
res = mEditor->InsertTextImpl(subStr, address_of(curNode), &curOffset, doc);
}
NS_ENSURE_SUCCESS(res, res);
}
}
outString->Assign(tString);
if (curNode)
{
aSelection->Collapse(curNode, curOffset);
// Make the caret attach to the inserted text, unless this text ends with a LF,
// in which case make the caret attach to the next line.
PRBool endsWithLF = !tString.IsEmpty() && tString.get()[tString.Length() - 1] == nsCRT::LF;
nsCOMPtr<nsISelectionPrivate>selPrivate(do_QueryInterface(aSelection));
selPrivate->SetInterlinePosition(endsWithLF);
}
}
ASSERT_PASSWORD_LENGTHS_EQUAL()
return res;
}
