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added code to manage setting/unsetting attribute-value pairs in complex selections.

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cases like: <font color=blue>abc</font>some more text<font color=red>def</font>
with the selection from 'b' to 'e' and operations like "set font to green", and "remove font color"
This commit is contained in:
buster%netscape.com 1999-07-06 23:41:37 +00:00
parent a24fd80ebe
commit 7add901c31
1 changed files with 64 additions and 17 deletions
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81
editor/base/nsTextEditor.cpp
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@ -1762,6 +1762,10 @@ NS_IMETHODIMP nsTextEditor::SetTextPropertiesForNode(nsIDOMNode *aNode,
IsTextPropertySetByContent(aNode, aPropName, aAttribute, aValue, textPropertySet, getter_AddRefs(resultNode));
if (PR_FALSE==textPropertySet)
{
if (aValue)
{
result = RemoveTextPropertiesForNode(aNode, aParent, aStartOffset, aEndOffset, aPropName, aAttribute);
}
nsAutoString tag;
aPropName->ToString(tag);
if (NS_SUCCEEDED(result))
@ -1946,6 +1950,12 @@ nsTextEditor::SetTextPropertiesForNodesWithSameParent(nsIDOMNode *aStartNode,
IsTextPropertySetByContent(aStartNode, aPropName, aAttribute, aValue, textPropertySet, getter_AddRefs(resultNode));
if (PR_FALSE==textPropertySet)
{
if (aValue)
{
result = RemoveTextPropertiesForNodesWithSameParent(aStartNode, aStartOffset,
aEndNode, aEndOffset,
aParent, aPropName, aAttribute);
}
nsAutoString tag;
aPropName->ToString(tag);
// create the new style node, which will be the new parent for the selected nodes
@ -2144,6 +2154,19 @@ nsTextEditor::SetTextPropertiesForNodeWithDifferentParents(nsIDOMRange *aRange,
// create a style node for the text in the start parent
nsCOMPtr<nsIDOMNode>parent;
result = RemoveTextPropertiesForNodeWithDifferentParents(aStartNode,aStartOffset,
aEndNode, aEndOffset,
aParent, aPropName, aAttribute);
if (NS_FAILED(result)) { return result; }
// RemoveTextProperties... might have changed selection endpoints, get new ones
nsCOMPtr<nsIDOMSelection>selection;
result = nsEditor::GetSelection(getter_AddRefs(selection));
if (NS_FAILED(result)) { return result; }
if (!selection) { return NS_ERROR_NULL_POINTER; }
selection->GetAnchorOffset(&aStartOffset);
selection->GetFocusOffset(&aEndOffset);
// create new parent nodes for all the content between the start and end nodes
nsCOMPtr<nsIContentIterator>iter;
result = nsComponentManager::CreateInstance(kCContentIteratorCID, nsnull,
@ -2291,13 +2314,8 @@ nsTextEditor::SetTextPropertiesForNodeWithDifferentParents(nsIDOMRange *aRange,
}
if (NS_SUCCEEDED(result))
{
nsCOMPtr<nsIDOMSelection>selection;
result = nsEditor::GetSelection(getter_AddRefs(selection));
if (NS_SUCCEEDED(result))
{
selection->Collapse(startNode, startOffset);
selection->Extend(endNode, aEndOffset);
}
selection->Collapse(startNode, startOffset);
selection->Extend(endNode, aEndOffset);
}
}
}
@ -2604,6 +2622,7 @@ nsTextEditor::RemoveTextPropertiesForNodesWithSameParent(nsIDOMNode *aStartNode,
return result;
}
// XXX: this only works for endpoints being text nodes for now
NS_IMETHODIMP
nsTextEditor::RemoveTextPropertiesForNodeWithDifferentParents(nsIDOMNode *aStartNode,
PRInt32 aStartOffset,
@ -2621,6 +2640,10 @@ nsTextEditor::RemoveTextPropertiesForNodeWithDifferentParents(nsIDOMNode *aStar
PRInt32 rangeStartOffset = aStartOffset; // used to construct a range for the nodes between
PRInt32 rangeEndOffset = aEndOffset; // aStartNode and aEndNode after we've processed those endpoints
// temporary state variables
PRBool textPropertySet;
nsCOMPtr<nsIDOMNode>resultNode;
// delete the style node for the text in the start parent
PRBool skippedStartNode = PR_FALSE;
nsCOMPtr<nsIDOMCharacterData>nodeAsChar;
@ -2631,12 +2654,22 @@ nsTextEditor::RemoveTextPropertiesForNodeWithDifferentParents(nsIDOMNode *aStar
return result;
}
nodeAsChar = do_QueryInterface(aStartNode);
if (!nodeAsChar) { return NS_ERROR_FAILURE; }
if (!nodeAsChar) { return NS_ERROR_NOT_IMPLEMENTED; }
nodeAsChar->GetLength(&count);
if ((PRUint32)aStartOffset!=count) { // only do this if at least one child is selected
result = RemoveTextPropertiesForNode(aStartNode, parent, aStartOffset, count, aPropName, aAttribute);
if (0!=aStartOffset) {
rangeStartOffset = 0; // we split aStartNode at aStartOffset and it is the right node now
if ((PRUint32)aStartOffset!=count)
{ // only do this if at least one child is selected
IsTextPropertySetByContent(aStartNode, aPropName, aAttribute, nsnull, textPropertySet, getter_AddRefs(resultNode));
if (PR_TRUE==textPropertySet)
{
result = RemoveTextPropertiesForNode(aStartNode, parent, aStartOffset, count, aPropName, aAttribute);
if (0!=aStartOffset) {
rangeStartOffset = 0; // we split aStartNode at aStartOffset and it is the right node now
}
}
else
{
skippedStartNode = PR_TRUE;
if (gNoisy) { printf("skipping start node because property not set\n"); }
}
}
else
@ -2652,13 +2685,19 @@ nsTextEditor::RemoveTextPropertiesForNodeWithDifferentParents(nsIDOMNode *aStar
if (NS_SUCCEEDED(result))
{
nodeAsChar = do_QueryInterface(aEndNode);
if (!nodeAsChar) { return NS_ERROR_FAILURE; }
if (!nodeAsChar) { return NS_ERROR_NOT_IMPLEMENTED; }
nodeAsChar->GetLength(&count);
if (aEndOffset!=0) { // only do this if at least one child is selected
result = RemoveTextPropertiesForNode(aEndNode, parent, 0, aEndOffset, aPropName, aAttribute);
if (0!=aEndOffset) {
rangeEndOffset = 0; // we split aEndNode at aEndOffset and it is the right node now
if (aEndOffset!=0)
{ // only do this if at least one child is selected
IsTextPropertySetByContent(aEndNode, aPropName, aAttribute, nsnull, textPropertySet, getter_AddRefs(resultNode));
if (PR_TRUE==textPropertySet)
{
result = RemoveTextPropertiesForNode(aEndNode, parent, 0, aEndOffset, aPropName, aAttribute);
if (0!=aEndOffset) {
rangeEndOffset = 0; // we split aEndNode at aEndOffset and it is the right node now
}
}
else { if (gNoisy) { printf("skipping end node because aProperty not set.\n"); } }
}
else { if (gNoisy) { printf("skipping end node because aEndOffset==0\n"); } }
}
@ -2785,6 +2824,14 @@ nsTextEditor::RemoveTextPropertiesForNodeWithDifferentParents(nsIDOMNode *aStar
contentPtr = (nsIContent*)(nodeList.ElementAt(0));
}
}
nsCOMPtr<nsIDOMSelection>selection;
result = nsEditor::GetSelection(getter_AddRefs(selection));
if (NS_SUCCEEDED(result))
{
selection->Collapse(aStartNode, rangeStartOffset);
selection->Extend(aEndNode, rangeEndOffset);
if (gNoisy) { printf("RTPFNWDP set selection.\n"); }
}
}
return result;