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fix for #17146, #13483, possibly #15479 

don't be stupid about finding the insertion point onto the tree for new rows. use GetInsertionPoint to walk the frames to determine the appropriate row index for new content that doesn't already have frames, so that the rows in the cellmap get the right index.
r=hyatt, bryner@uiuc.edu, alecf (some code dictated by hyatt)
This commit is contained in:
alecf%netscape.com 1999-11-12 05:51:26 +00:00
Родитель ab45251069
Коммит b7fbde42d2
5 изменённых файлов: 146 добавлений и 70 удалений
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24
layout/xul/base/src/nsTreeFrame.cpp
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@ -430,3 +430,27 @@ nsTreeFrame::ContainsFlexibleColumn(PRInt32 aStartIndex, PRInt32 aEndIndex,
return PR_FALSE;
}
PRInt32
nsTreeFrame::GetInsertionIndex(nsIFrame *aFrame)
{
nsIFrame *child = mFrames.FirstChild();
PRInt32 index=0;
while (child) {
if (child==aFrame) {
return index;
}
const nsStyleDisplay *display;
child->GetStyleData(eStyleStruct_Display,
(const nsStyleStruct*&)display);
if (display->mDisplay == NS_STYLE_DISPLAY_TABLE_ROW_GROUP) {
PRBool done=PR_FALSE;
index = ((nsTreeRowGroupFrame*)child)->GetInsertionIndex(aFrame, index, done);
if (done) return index;
}
child->GetNextSibling(&child);
}
return index;
}

2
layout/xul/base/src/nsTreeFrame.h
Просмотреть файл

@ -81,6 +81,8 @@ public:
void SuppressReflow() { mSuppressReflow = PR_TRUE; };
void UnsuppressReflow() { mSuppressReflow = PR_FALSE; };
PRInt32 GetInsertionIndex(nsIFrame *aFrame);
protected:
nsTreeFrame();
virtual ~nsTreeFrame();

4
layout/xul/base/src/nsTreeRowFrame.cpp
Просмотреть файл

@ -332,7 +332,7 @@ nsTreeRowFrame::HandleHeaderDragEvent(nsIPresContext& aPresContext,
// Find our flexing col and note its index and width.
PRInt32 colX;
PRInt32 flexWidth = 0;
PRInt32 flexIndex;
PRInt32 flexIndex = 0;
for (colX = 0; colX < columnCount; colX++) {
// Get column information
nsTableColFrame* colFrame = tableFrame->GetColFrame(colX);
@ -353,7 +353,7 @@ nsTreeRowFrame::HandleHeaderDragEvent(nsIPresContext& aPresContext,
// and give them a percentage of the delta based off their proportions.
nsCOMPtr<nsIContent> colContent;
nsTableColFrame* colFrame;
PRInt32 colWidth;
PRInt32 colWidth = 0;
PRInt32 remaining = delta;
for (colX = flexIndex+1; colX < columnCount; colX++) {
if (colWidths[colX] > 0) {

177
layout/xul/base/src/nsTreeRowGroupFrame.cpp
Просмотреть файл

@ -46,6 +46,8 @@
#include "nsIDOMDragListener.h"
#include "nsTreeItemDragCapturer.h"
// define this to get some help
#undef DEBUG_tree
//
// NS_NewTreeFrame
@ -594,7 +596,7 @@ nsTreeRowGroupFrame::FindPreviousRowContent(PRInt32& aDelta, nsIContent* aUpward
}
void
nsTreeRowGroupFrame::ComputeVisibleRowCount(PRInt32& aCount, nsIContent* aParent)
nsTreeRowGroupFrame::ComputeTotalRowCount(PRInt32& aCount, nsIContent* aParent)
{
// XXX Check for visibility collapse and for display none on all objects.
// ARGH!
@ -611,7 +613,7 @@ nsTreeRowGroupFrame::ComputeVisibleRowCount(PRInt32& aCount, nsIContent* aParent
}
else if (tag.get() == nsXULAtoms::treeitem) {
// Descend into this row group and try to find the next row.
ComputeVisibleRowCount(aCount, childContent);
ComputeTotalRowCount(aCount, childContent);
}
else if (tag.get() == nsXULAtoms::treechildren) {
// If it's open, descend into its treechildren.
@ -621,7 +623,7 @@ nsTreeRowGroupFrame::ComputeVisibleRowCount(PRInt32& aCount, nsIContent* aParent
childContent->GetParent(*getter_AddRefs(parent));
parent->GetAttribute(kNameSpaceID_None, openAtom, isOpen);
if (isOpen == "true")
ComputeVisibleRowCount(aCount, childContent);
ComputeTotalRowCount(aCount, childContent);
}
}
}
@ -629,7 +631,7 @@ nsTreeRowGroupFrame::ComputeVisibleRowCount(PRInt32& aCount, nsIContent* aParent
NS_IMETHODIMP
nsTreeRowGroupFrame::PositionChanged(nsIPresContext& aPresContext, PRInt32 aOldIndex, PRInt32 aNewIndex)
{
#ifdef DEBUG_alecf
#ifdef DEBUG_tree
printf("PositionChanged from %d to %d\n", aOldIndex, aNewIndex);
#endif
if (aNewIndex < 0)
@ -656,7 +658,7 @@ nsTreeRowGroupFrame::PositionChanged(nsIPresContext& aPresContext, PRInt32 aOldI
// Figure out how many rows we need to lose (if we moved down) or gain (if we moved up).
PRInt32 delta = aNewIndex > aOldIndex ? aNewIndex - aOldIndex : aOldIndex - aNewIndex;
#ifdef DEBUG_alecf
#ifdef DEBUG_tree
printf("Scrolling, the delta is: %d\n", delta);
#endif
@ -728,7 +730,7 @@ nsTreeRowGroupFrame::PagedUpDown()
char ch[100];
sprintf(ch,"%d", rowGroupCount);
#ifdef DEBUG_alecf
#ifdef DEBUG_tree
printf("PagedUpDown, setting increment to %d\n", rowGroupCount);
#endif
scrollbarContent->SetAttribute(kNameSpaceID_None, nsXULAtoms::pageincrement, nsString(ch), PR_FALSE);
@ -942,7 +944,7 @@ nsTreeRowGroupFrame::ReflowAfterRowLayout(nsIPresContext& aPresContext,
}
mRowCount = 0;
ComputeVisibleRowCount(mRowCount, mContent); // XXX This sucks! Needs to be cheap!
ComputeTotalRowCount(mRowCount, mContent); // XXX This sucks! Needs to be cheap!
if (mShouldHaveScrollbar && (mRowGroupHeight != NS_UNCONSTRAINEDSIZE) &&
(mIsFull || mScrollbar)) {
@ -1143,39 +1145,15 @@ nsTreeRowGroupFrame::GetFirstFrameForReflow(nsIPresContext& aPresContext)
if (IsTableRowFrame(mTopFrame)) {
nsCOMPtr<nsIContent> rowContent;
mTopFrame->GetContent(getter_AddRefs(rowContent));
/*nsCOMPtr<nsIContent> cellContent;
rowContent->ChildAt(0, *getter_AddRefs(cellContent));
nsString value;
cellContent->GetAttribute(kNameSpaceID_None, nsHTMLAtoms::value, value);
char namebuf[150];
namebuf[0] = 0;
value.ToCString(namebuf, sizeof(namebuf));
printf("Created a first row: %s\n", namebuf);
*/
nsCOMPtr<nsIContent> topRowContent;
PRInt32 delta = 1;
FindPreviousRowContent(delta, rowContent, nsnull, getter_AddRefs(topRowContent));
if (!topRowContent) {
PostAppendRow((nsTableRowFrame*)mTopFrame, aPresContext);
}
else {
// Retrieve the primary frame.
nsCOMPtr<nsIPresShell> shell;
aPresContext.GetShell(getter_AddRefs(shell));
nsIFrame* result = nsnull;
shell->GetPrimaryFrameFor(topRowContent, &result);
if (!result) {
PostAppendRow((nsTableRowFrame*)mTopFrame, aPresContext);
}
else {
// We have a primary frame. Get its row index. We're equal to that + 1.
nsTableRowFrame* rowFrame = (nsTableRowFrame*)result;
PRInt32 rowIndex = rowFrame->GetRowIndex();
rowIndex++;
tableFrame->InsertRowIntoMap((nsTableRowFrame*)mTopFrame, rowIndex);
}
}
FindPreviousRowContent(delta, rowContent, nsnull, getter_AddRefs(topRowContent));
AddRowToMap(tableFrame, aPresContext, topRowContent, mTopFrame);
PostAppendRow(mTopFrame, aPresContext);
}
else if (IsTableRowGroupFrame(mTopFrame) && mContentChain) {
// We have just instantiated a row group, and we have a content chain. This
@ -1251,27 +1229,8 @@ nsTreeRowGroupFrame::GetNextFrameForReflow(nsIPresContext& aPresContext, nsIFram
nsCOMPtr<nsIContent> topRowContent;
PRInt32 delta = 1;
FindPreviousRowContent(delta, nextContent, nsnull, getter_AddRefs(topRowContent));
if (!topRowContent) {
PostAppendRow((nsTableRowFrame*)(*aResult), aPresContext);
}
else {
// Retrieve the primary frame.
nsCOMPtr<nsIPresShell> shell;
aPresContext.GetShell(getter_AddRefs(shell));
nsIFrame* result = nsnull;
shell->GetPrimaryFrameFor(topRowContent, &result);
if (!result) {
PostAppendRow((nsTableRowFrame*)(*aResult), aPresContext);
}
else {
// We have a primary frame. Get its row index. We're equal to that + 1.
nsTableRowFrame* rowFrame = (nsTableRowFrame*)result;
PRInt32 rowIndex = rowFrame->GetRowIndex();
rowIndex++;
tableFrame->InsertRowIntoMap((nsTableRowFrame*)(*aResult), rowIndex);
}
}
AddRowToMap(tableFrame, aPresContext, topRowContent, (*aResult));
PostAppendRow(*aResult, aPresContext);
}
}
}
@ -1474,7 +1433,7 @@ nsTreeRowGroupFrame::IndexOfRow(nsIPresContext& aPresContext,
else {
// We didn't find a frame. This mean we have no choice but to crawl
// the row group.
#ifdef DEBUG_alecf
#ifdef DEBUG_tree
printf("Searching for non-visible content node\n");
#endif
}
@ -1503,7 +1462,7 @@ nsTreeRowGroupFrame::EnsureRowIsVisible(PRInt32 aRowIndex)
if (mCurrentIndex <= aRowIndex && aRowIndex <= bottomIndex)
return;
#ifdef DEBUG_alecf
#ifdef DEBUG_tree
printf("top = %d, bottom = %d, going to %d\n",
mCurrentIndex, bottomIndex, aRowIndex);
#endif
@ -1515,7 +1474,7 @@ nsTreeRowGroupFrame::EnsureRowIsVisible(PRInt32 aRowIndex)
if (aRowIndex < mCurrentIndex) {
// row is above us, scroll up from mCurrentIndex
// scroll such that mCurrentIndex = aRowIndex
#ifdef DEBUG_alecf
#ifdef DEBUG_tree
printf("row is above, scroll to %d\n", aRowIndex);
#endif
scrollTo=aRowIndex;
@ -1524,8 +1483,8 @@ nsTreeRowGroupFrame::EnsureRowIsVisible(PRInt32 aRowIndex)
// row is below us, so scroll down from bottomIndex
// scroll such that mCurrentIndex = (aRowIndex - aRowCount)
NS_ASSERTION(aRowIndex - rows >=0, "scrolling to negative row?!");
scrollTo=aRowIndex - rows;
#ifdef DEBUG_alecf
scrollTo=aRowIndex - rows + 1;
#ifdef DEBUG_tree
printf("row is below, scroll to %d\n", scrollTo);
#endif
@ -1533,7 +1492,7 @@ nsTreeRowGroupFrame::EnsureRowIsVisible(PRInt32 aRowIndex)
nsString value;
#ifdef DEBUG_alecf
#ifdef DEBUG_tree
// dump state
scrollbarContent->GetAttribute(kNameSpaceID_None, nsXULAtoms::maxpos, value);
printf("maxpos = %s\n", value.ToNewCString());
@ -1555,7 +1514,7 @@ void
nsTreeRowGroupFrame::GetCellFrameAtIndex(PRInt32 aRowIndex, PRInt32 aColIndex,
nsTreeCellFrame** aResult)
{
#ifdef DEBUG_alecf
#ifdef DEBUG_tree
printf("Looking for cell (%d, %d)..", aRowIndex, aColIndex);
#endif
// The screen index = (aRowIndex - mCurrentIndex)
@ -1567,7 +1526,7 @@ nsTreeRowGroupFrame::GetCellFrameAtIndex(PRInt32 aRowIndex, PRInt32 aColIndex,
nsTableCellFrame* cellFrame;
#ifdef DEBUG_alecf
#ifdef DEBUG_tree
printf("(screen index (%d,%d))\n", screenIndex, aColIndex);
#endif
@ -1580,14 +1539,15 @@ nsTreeRowGroupFrame::GetCellFrameAtIndex(PRInt32 aRowIndex, PRInt32 aColIndex,
}
}
#ifdef DEBUG_alecf
#ifdef DEBUG_tree
printf("got cell frame %p\n", *aResult);
#endif
}
void nsTreeRowGroupFrame::PostAppendRow(nsIFrame* aRowFrame, nsIPresContext& aPresContext)
{
DidAppendRow((nsTableRowFrame*)aRowFrame);
// shouldn't need this anymore
// DidAppendRow((nsTableRowFrame*)aRowFrame);
// Get the table frame.
nsTableFrame* tableFrame;
@ -1636,6 +1596,87 @@ nsTreeRowGroupFrame::MarkTreeAsDirty(nsIPresContext& aPresContext, nsTreeFrame*
}
}
// given a content node, insert a row into the cellmap
// for wherever it belows in the map
void
nsTreeRowGroupFrame::AddRowToMap(nsTableFrame *aTableFrame,
nsIPresContext& aPresContext,
nsIContent *aContent,
nsIFrame* aCurrentFrame)
{
PRInt32 insertionIndex =
GetInsertionIndexForContent(aTableFrame, aPresContext, aContent);
aTableFrame->InsertRowIntoMap((nsTableRowFrame*)aCurrentFrame,
insertionIndex);
}
// determine the appropriate index of this row in the row map
PRInt32
nsTreeRowGroupFrame::GetInsertionIndexForContent(nsTableFrame *aTableFrame,
nsIPresContext& aPresContext,
nsIContent *aContent)
{
PRInt32 insertionIndex = -1;
// see if there is a frame for aContent
if (aContent) {
// Retrieve the primary frame.
nsCOMPtr<nsIPresShell> shell;
aPresContext.GetShell(getter_AddRefs(shell));
nsIFrame* result = nsnull;
shell->GetPrimaryFrameFor(aContent, &result);
if (result) {
// We have a primary frame. Get its row index. We're equal to that + 1.
nsTableRowFrame* rowFrame = (nsTableRowFrame*)result;
insertionIndex = rowFrame->GetRowIndex() + 1;
}
}
// nope, no frame, so go find where it belongs by walking the frames
if (insertionIndex==-1)
insertionIndex = ((nsTreeFrame*)aTableFrame)->GetInsertionIndex(this);
return insertionIndex;
}
// get the row index of aFrame
// recurse into rowgroups, count rows
PRInt32
nsTreeRowGroupFrame::GetInsertionIndex(nsIFrame *aFrame, PRInt32 aCurrentIndex, PRBool& aDone)
{
nsIFrame *child = mFrames.FirstChild();
PRInt32 index=aCurrentIndex;
while (child) {
// stop when we hit aFrame
if (child==aFrame) {
aDone=PR_TRUE;
return index;
}
// recurse into rowgroups
if (IsTableRowGroupFrame(child)) {
index = ((nsTreeRowGroupFrame*)child)->GetInsertionIndex(aFrame, index, aDone);
// short-circut the return
if (aDone) return index;
}
// count rows
else if (IsTableRowFrame(child))
index++;
child->GetNextSibling(&child);
}
return index;
}
//
// pinkerton
// code copied from the toolbar to bootstrap tree d&d. I hope to god

11
layout/xul/base/src/nsTreeRowGroupFrame.h
Просмотреть файл

@ -146,10 +146,11 @@ protected:
void GetFirstRowContent(nsIContent** aRowContent);
void ComputeVisibleRowCount(PRInt32& rowCount, nsIContent* aParent);
void ComputeTotalRowCount(PRInt32& rowCount, nsIContent* aParent);
void PostAppendRow(nsIFrame* aRowFrame, nsIPresContext& aPresContext);
public:
// Helpers that allow access to info. The tree is the primary consumer of this
// info.
@ -178,6 +179,14 @@ public:
PRInt32 GetVisibleRowCount() { return mRowCount; };
PRInt32 GetInsertionIndex(nsIFrame *aFrame, PRInt32 aCurrentIndex, PRBool& aDone);
PRInt32 GetInsertionIndexForContent(nsTableFrame* aTableFrame,
nsIPresContext& aPresContext,
nsIContent *aContent);
void AddRowToMap(nsTableFrame *aTableFrame,
nsIPresContext& aPresContext,
nsIContent *aContent, nsIFrame *aCurrentFrame);
static PRBool IsTableRowGroupFrame(nsIFrame*);
static PRBool IsTableRowFrame(nsIFrame*);