pjs/cmd/macfe/rdfui/CHyperTreeFlexTable.cp

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Исходник Обычный вид История

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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
*
* The contents of this file are subject to the Netscape Public License
* Version 1.0 (the "NPL"); you may not use this file except in
* compliance with the NPL. You may obtain a copy of the NPL at
* http://www.mozilla.org/NPL/
*
* Software distributed under the NPL is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
* for the specific language governing rights and limitations under the
* NPL.
*
* The Initial Developer of this code under the NPL is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All Rights
* Reserved.
*/
//
// Mike Pinkerton, Netscape Communications
//
// Subclass of CStandardFlexTable to handle working with XP RDF Hyper Trees
//
#include "CHyperTreeFlexTable.h"
// PowerPlant
#include <LTableArrayStorage.h>
#include <LDropFlag.h>
#include <Appearance.h>
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#include "CHyperTreeHeader.h"
#include "URDFUtilities.h"
#include "uapp.h"
#include "CURLDragHelper.h"
#include "CIconTextDragTask.h"
#include "CNetscapeWindow.h"
#include "resgui.h"
#include "macutil.h"
#include "ufilemgr.h"
#include "CInlineEditField.h"
#include "CContextMenuAttachment.h"
#include <vector.h>
#include <algorithm>
extern RDF_NCVocab gNavCenter; // RDF vocab struct for NavCenter
const ResIDT cFolderIconID = kGenericFolderIconResource;
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const ResIDT cItemIconID = 15313;
const ResIDT cFileIconID = kGenericDocumentIconResource;
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#pragma mark -- class CHyperTreeFlexTable --
// ------------------------------------------------------------
// Construction, Destruction
// ------------------------------------------------------------
CHyperTreeFlexTable::CHyperTreeFlexTable(LStream* inStream)
: CStandardFlexTable(inStream),
mHTView(NULL),
mHTNotificationData(NULL),
mViewBeforeDrag(NULL)
{
mSendDataUPP = NewDragSendDataProc(LDropArea::HandleDragSendData);
ThrowIfNil_(mSendDataUPP);
}
CHyperTreeFlexTable::~CHyperTreeFlexTable()
{
}
// ------------------------------------------------------------
// CStandardFlexTable overrides
// ------------------------------------------------------------
ResIDT CHyperTreeFlexTable::GetIconID(TableIndexT inRow) const
{
HT_Resource node = HT_GetNthItem(GetHTView(), URDFUtilities::PPRowToHTRow(inRow) );
if (node) {
if ( HT_IsContainer(node) )
return cFolderIconID;
else {
char* url = HT_GetNodeURL(node);
if ( url && *url == 'f' ) // is it a file url?
return cFileIconID;
else
return cItemIconID;
}
}
return cItemIconID;
}
//
// SetUpTableHelpers
//
// Call the inherited version to do most of the work but replace the
// selector with our own version to track the selection in the HT_API
//
void
CHyperTreeFlexTable :: SetUpTableHelpers()
{
CStandardFlexTable::SetUpTableHelpers();
// replace selector....
SetTableSelector( new CHyperTreeSelector(this) );
} // SetupTableHelpers
//
// GetHiliteTextRect
//
// Find out what rectangle to draw selected in the currently selected row. This is
// based on the item title.
//
Boolean
CHyperTreeFlexTable::GetHiliteTextRect ( TableIndexT inRow, Rect& outRect) const
{
STableCell cell(inRow, GetHiliteColumn());
if (!GetLocalCellRect(cell, outRect))
return false;
Rect iconRect;
GetIconRect(cell, outRect, iconRect);
outRect.left = iconRect.right;
// Get cell data for first column
char buffer[1000];
GetHiliteText(inRow, buffer, 1000, &outRect);
return true;
} // GetHiliteTextRect
//
// GetMainRowText
//
// Returns the text of the title of the item.
//
void
CHyperTreeFlexTable :: GetMainRowText( TableIndexT inRow, char* outText, UInt16 inMaxBufferLength) const
{
if (!outText || inMaxBufferLength == 0)
return;
void* data;
CHyperTreeHeader* header = dynamic_cast<CHyperTreeHeader*>(mTableHeader);
Assert_(header != NULL);
CHyperTreeHeader::ColumnInfo info = header->GetColumnInfo(FindTitleColumnID()-1); // GCI() is 0-based
HT_Resource node = HT_GetNthItem(GetHTView(), URDFUtilities::PPRowToHTRow(inRow) );
if ( node && HT_GetNodeData(node, info.token, info.tokenType, &data) ) {
char* title = static_cast<char*>(data);
strcpy ( outText, title );
}
else
*outText = NULL;
} // GetMainRowText
//
// FindTitleColumnID
//
// Returns the index of the column that contains the item title and icon. This will search out the
// correct column by looking at the column headers.
//
// NOTE: THERE IS CURRENTLY NO BACKEND SUPPORT FOR REORDERING COLUMNS, SO WE MAKE AN EXPLICIT
// ASSUMPTION THAT THE FIRST COLUMN IS THE TITLE COLUMN. AT LEAST THIS SHOULD BE THE ONLY
// ROUTINE THAT HAS TO CHANGE WHEN THAT ASSUMPTION CHANGES.
//
Uint32
CHyperTreeFlexTable :: FindTitleColumnID ( ) const
{
return 1; // for now....
} // FindTitleColumnID
//
// CellInitiatesDrag
//
// Determines if a cell is allowed to start a drag. We disallow this for any cell except for the
// cell with the title and icon. Also disallow d&d when selection is not allowed in this view
// (simple tree).
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//
Boolean
CHyperTreeFlexTable :: CellInitiatesDrag ( const STableCell& inCell ) const
{
return inCell.col == FindTitleColumnID() &&
URDFUtilities::PropertyValueBool(TopNode(), gNavCenter->useSelection) == false
? true : false;
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} // CellInitiatesDrag
//
// CellSelects
//
// Determines if a cell is allowed to select the row. We disallow this for any cell except for the
// cell with the title and icon. Also disallow selection when selection is not allowed in this view
// (simple tree).
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//
Boolean
CHyperTreeFlexTable :: CellSelects ( const STableCell& inCell ) const
{
return inCell.col == FindTitleColumnID() &&
URDFUtilities::PropertyValueBool(TopNode(), gNavCenter->useSelection) == false
? true : false;
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} // CellSelects
//
// CellWantsClick
//
// This is used in the flex table to allow the cell a chance at the click even if it is not
// supposed to select anything. This is the case when the tree is in single-click mode because
// we still want to respond to clicks even though the cell does not select. Since this will only
// be called when the title column is clicked on and we're in single click mode, just always
// return true.
//
Boolean
CHyperTreeFlexTable :: CellWantsClick( const STableCell & inCell ) const
{
return true;
} // CellWantsClick
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//
// DoHiliteRgn
//
// Override to not use the hilite color, since that would be confusing with in-place editing.
// This is called when the user clicks on a row in the table to hilite that particular row.
// The routine below is called when updating the window.
//
void
CHyperTreeFlexTable :: DoHiliteRgn ( RgnHandle inHiliteRgn ) const
{
::InvertRgn ( inHiliteRgn );
} // DoHiliteRgn
//
// DoHiliteRect
//
// Override not to use hilite color, since it doesn't draw very well over the gray background.
//
void
CHyperTreeFlexTable :: DoHiliteRect ( const Rect & inHiliteRect ) const
{
::InvertRect ( &inHiliteRect );
} // DoHiliteRect
//
// HiliteSelection
//
// Overload the LTableView class' version of this routine to hilite the selected items
// without setting the hilite bit before drawing. This is called when the window is updating
// to redraw the selected items.
//
void
CHyperTreeFlexTable :: HiliteSelection( Boolean inActively, Boolean /*inHilite*/)
{
if (FocusExposed()) {
StRegion hiliteRgn;
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GetHiliteRgn(hiliteRgn);
StColorPenState saveColorPen; // Preserve color & pen state
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StColorPenState::Normalize();
if (inActively)
::InvertRgn(hiliteRgn);
else {
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::PenMode(srcXor);
::FrameRgn(hiliteRgn);
}
}
} // HiliteSelection
//
// SyncSelectionWithHT
//
// The selection has somehow changed by the backend's decree. Make sure that we are in
// sync with that.
//
void
CHyperTreeFlexTable :: SyncSelectionWithHT ( )
{
CHyperTreeSelector* sel = dynamic_cast<CHyperTreeSelector*>(GetTableSelector());
Assert_( sel != NULL);
sel->SyncSelectorWithHT();
SelectionChanged();
ScrollSelectionIntoFrame();
} // SyncSelectionWithHT
//
// ListenToMessage
//
// Listen for the update of the background image so we can redraw.
//
void
CHyperTreeFlexTable :: ListenToMessage ( const MessageT inMessage, void* ioData )
{
if ( inMessage == CIconContext::msg_ImageReadyToDraw )
Refresh();
} // ListenToMessage
//
// DrawStandby
//
// Draw something reasonable when the background image has not yet been loaded or if the bg image
// cannot be found
//
void
CHyperTreeFlexTable :: DrawStandby ( const Point & /*inTopLeft*/, const IconTransformType /*inTransform*/ ) const
{
EraseTableBackground();
} // DrawStandby
//
// EraseTableBackground
//
// Erase the background of the table with the specified color from HT or with the appropriate
// AppearanceManager colors
//
void
CHyperTreeFlexTable :: EraseTableBackground ( ) const
{
// draw the unsorted column color all the way down. The sort column can redraw it cell by cell
size_t viewHeight = max(mImageSize.height, static_cast<Int32>(mFrameSize.height));
Rect backRect = { 0, 0, viewHeight, mImageSize.width };
URDFUtilities::SetupBackgroundColor ( TopNode(), gNavCenter->viewBGColor, kThemeListViewBackgroundBrush );
::EraseRect(&backRect);
} // EraseTableBackground
//
// DrawSelf
//
// Overridden to draw the background image, if one is present on the current view
//
void
CHyperTreeFlexTable :: DrawSelf ( )
{
mHasBackgroundImage = false;
Point topLeft = { 0, 0 };
HT_Resource topNode = TopNode();
size_t viewHeight = max(mImageSize.height, static_cast<Int32>(mFrameSize.height));
if ( topNode ) {
char* url = NULL;
PRBool success = HT_GetNodeData ( topNode, gNavCenter->viewBGURL, HT_COLUMN_STRING, &url );
if ( success && url ) {
// draw the background image tiled to fill the whole pane
mHasBackgroundImage = true;
SetImageURL ( url );
DrawImage ( topLeft, kTransformNone, mImageSize.width, viewHeight );
FocusDraw();
}
else
EraseTableBackground();
CStandardFlexTable::DrawSelf();
}
} // DrawSelf
//
// EraseCellBackground
//
// Make the backdrop of the cell look like the Finder in OS8 or whatever the user has explicitly
// set via HT properties. If there is a background image, of course, don't draw the background. The
// default list background has already been painted, so only do something if there is a difference.
//
void
CHyperTreeFlexTable :: EraseCellBackground ( const STableCell& inCell, const Rect& inLocalRect )
{
StColorPenState saved;
if ( !mHasBackgroundImage )
{
PaneIDT columnPane;
CHyperTreeHeader* header = dynamic_cast<CHyperTreeHeader*>(mTableHeader);
Assert_(header != NULL);
// only need to draw if this column in sorted
if ( inCell.col == header->GetSortedColumn(columnPane) ) {
Rect backRect = inLocalRect;
backRect.bottom--; // leave a one pixel line on the bottom as separator
backRect.right++; // cover up vertical dividing line on right side
URDFUtilities::SetupBackgroundColor ( TopNode(), gNavCenter->sortColumnBGColor,
kThemeListViewSortColumnBackgroundBrush );
::EraseRect(&backRect);
} // if this column is sorted
} // if no bg image
// draw the separator line if HT says to. This will draw it even if there is a bg image.
if ( URDFUtilities::PropertyValueBool(TopNode(), gNavCenter->showDivider) ) {
URDFUtilities::SetupBackgroundColor ( TopNode(), gNavCenter->dividerColor,
kThemeListViewSeparatorBrush );
Rect divider = { inLocalRect.bottom - 1, inLocalRect.left, inLocalRect.bottom, inLocalRect.right };
::EraseRect ( &divider );
}
} // EraseCellBackground
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//
// DrawCellContents
//
// Draw what goes inside each cell, naturally
//
void
CHyperTreeFlexTable::DrawCellContents( const STableCell& inCell, const Rect& inLocalRect)
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{
PaneIDT cellType = GetCellDataType(inCell);
// Get info for column
PaneIDT columnPane;
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CHyperTreeHeader* header = dynamic_cast<CHyperTreeHeader*>(mTableHeader);
Assert_(header != NULL);
CHyperTreeHeader::ColumnInfo info = header->GetColumnInfo(inCell.col - 1);
// setup the text color based on if this cell is in the sorted column. Note that while
// HT has the concept of a different fg color for sorted columns, AM does not.
if ( inCell.col == header->GetSortedColumn(columnPane) )
URDFUtilities::SetupForegroundTextColor ( TopNode(), gNavCenter->sortColumnFGColor,
kThemeListViewTextColor );
else
URDFUtilities::SetupForegroundTextColor ( TopNode(), gNavCenter->viewFGColor,
kThemeListViewTextColor );
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// Get cell data
HT_Resource node = HT_GetNthItem(GetHTView(), URDFUtilities::PPRowToHTRow(inCell.row) );
if (node) {
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if ( HT_IsSeparator(node) ) {
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Uint16 left = inLocalRect.left;
if ( inCell.col == FindTitleColumnID() ) {
left = DrawIcons(inCell, inLocalRect);
left += CStandardFlexTable::kDistanceFromIconToText;
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}
// setup the color based on if this cell is in the sorted column. Note that while
// HT has the concept of a different fg color for sorted columns, AM does not.
StColorPenState saved;
if ( inCell.col == header->GetSortedColumn(columnPane) )
URDFUtilities::SetupForegroundColor ( TopNode(), gNavCenter->sortColumnFGColor,
kThemeListViewTextColor );
else
URDFUtilities::SetupForegroundColor ( TopNode(), gNavCenter->viewFGColor,
kThemeListViewTextColor );
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::MoveTo ( left,
inLocalRect.top + ((inLocalRect.bottom - inLocalRect.top) / 2) );
::PenSize ( 2, 2 );
::PenPat ( &qd.gray );
::Line ( inLocalRect.right - left, 0 );
} // if is a separator
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else {
void* data;
char* str;
Rect localRect = inLocalRect;
if (HT_GetNodeData(node, info.token, info.tokenType, &data) && data)
{
switch (info.tokenType) {
case HT_COLUMN_STRING:
case HT_COLUMN_DATE_STRING:
str = static_cast<char*>(data);
if (inCell.col == FindTitleColumnID())
{
localRect.left = DrawIcons(inCell, localRect);
localRect.left += CStandardFlexTable::kDistanceFromIconToText;
}
break;
case HT_COLUMN_DATE_INT:
case HT_COLUMN_INT:
char intStr[32];
sprintf(intStr, "%d", (int)data);
str = intStr;
break;
}
DrawTextString(str, &mTextFontInfo, 0, localRect);
}
} // else a normal item
} // if node valid
} // DrawCellContents
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Boolean CHyperTreeFlexTable::CellHasDropFlag(const STableCell& inCell, Boolean& outIsExpanded) const
{
// bail quickly if this cell isn't a title column or tree connections are turned off
if ( FindTitleColumnID() != inCell.col ||
URDFUtilities::PropertyValueBool( TopNode(), gNavCenter->showTreeConnections) == false )
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return false;
HT_Resource node = HT_GetNthItem(GetHTView(), URDFUtilities::PPRowToHTRow(inCell.row) );
if (node)
{
PRBool result = HT_IsContainer(node);
if (result)
{
PRBool openState;
HT_Error err = HT_GetOpenState(node, &openState);
if (err == HT_NoErr)
outIsExpanded = openState;
}
else
outIsExpanded = false;
return result;
}
return false;
} // CellHasDropFlag
UInt16 CHyperTreeFlexTable::GetNestedLevel(TableIndexT inRow) const
{
HT_Resource node = HT_GetNthItem(GetHTView(), URDFUtilities::PPRowToHTRow(inRow) );
if (node)
{
// subtract one because root node as indentation of 1
return (HT_GetItemIndentation(node) - 1);
}
return CStandardFlexTable::GetNestedLevel(inRow);
}
//
// SetCellExpansion
//
// User clicked on the disclosure triangle, tell HT to open/close the container. This call
// may fail if the user has password protected the folder and they get the password wrong.
// If that is the case, redraw the drop flag to its correct state.
//
void CHyperTreeFlexTable::SetCellExpansion(
const STableCell& inCell,
Boolean inExpand)
{
HT_Resource node = HT_GetNthItem(GetHTView(), URDFUtilities::PPRowToHTRow(inCell.row) );
if (node)
{
if ( HT_SetOpenState(node, (PRBool)inExpand) != noErr )
RefreshCell(inCell);
}
}
// ------------------------------------------------------------
// HT Operations
// ------------------------------------------------------------
//
// OpenView
//
// opens up the given view in the navCenter (such as bookmarks). Make sure the selector for this
// table knows about new view, sync the number of rows in the table with the
// number of rows in the HT and setup the columns.
//
// This routine is called as a result of the HT notification mechanism (not directly from any
// FE events like clicks). That means that the shelf may not be open yet.
//
void
CHyperTreeFlexTable::OpenView( HT_View inHTView )
{
// Hide the inline editor. This will send us a message that the name changed and attempt
// to redraw the entire window. We don't want this because is causes an ugly flash as it
// redraws the old view then draws the new view. Setting the visRgn to empty prevents
// the redraw of the old view.
if ( mNameEditor && mNameEditor->IsVisible() ) {
StVisRgn saved(GetMacPort());
mNameEditor->UpdateEdit(nil, nil, nil);
}
// save existing column information for the next time the user comes back to this
// view. Note we do not reflect any of this into HT, so it will be lost when the user
// quits or opens a new window (I think). We currently save which columns are visible,
// their widths, and sort state.
CHyperTreeHeader* header = dynamic_cast<CHyperTreeHeader*>(mTableHeader);
Assert_(header != NULL);
TableIndexT visColumns = header->CountVisibleColumns();
if ( visColumns ) {
//<2F><><EFBFBD> implement this. Recall that currently the FE data is used to store the
//<2F><><EFBFBD> SelectorData stuff. We'll have to create a new structure that wraps both
//<2F><><EFBFBD> this info and that.
}
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mHTView = mViewBeforeDrag = inHTView;
CHyperTreeSelector* sel = dynamic_cast<CHyperTreeSelector*>(GetTableSelector());
Assert_( sel != NULL);
sel->TreeView ( inHTView );
// Rebuild the column headers based on the new view contents and which columns the
// user had visible last time.
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HT_Cursor columnCursor = HT_NewColumnCursor(inHTView);
header->SetUpColumns(columnCursor);
HT_DeleteColumnCursor(columnCursor);
SynchronizeColumnsWithHeader();
if ( header->GetHeaderWidth() ) { // don't do this if shelf collapsed, we'll do it again later
//<2F><><EFBFBD> implement this too
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SetRightmostVisibleColumn(1); //<2F><><EFBFBD> HACK UNTIL WE GET THE COLUMN STUFF FIGURED OUT....
}
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Uint32 count = HT_GetItemListCount(inHTView);
if (mRows != count)
{
if (count > mRows)
InsertRows(count - mRows, 0, NULL, 0, false);
else
RemoveRows(mRows - count, 0, true);
}
SyncSelectionWithHT();
// redraw the table. If the mouse is down, we're probably in the middle of a
// drag and drop so we want to redraw NOW (not when we get an update event after
// the mouse has been released).
if ( ::StillDown() ) {
UnselectAllCells();
FocusDraw();
Rect localRect;
CalcLocalFrameRect(localRect);
localRect.left++;
::EraseRect(&localRect);
GetSuperView()->Draw(nil); // redraw NOW to get the # of visible rows correct
}
else
Refresh();
}
void CHyperTreeFlexTable::ExpandNode(HT_Resource inHTNode)
{
Int32 index = HT_GetNodeIndex(GetHTView(), inHTNode);
Uint32 count = HT_GetCountVisibleChildren(inHTNode);
if (count > 0)
InsertRows(count, index + 1, NULL, 0, true);
}
void CHyperTreeFlexTable::CollapseNode(HT_Resource inHTNode)
{
Int32 index = HT_GetNodeIndex(GetHTView(), inHTNode);
Uint32 count = HT_GetCountVisibleChildren(inHTNode);
if (count > 0)
RemoveRows(count, index + 2, true);
}
//-----------------------------------
// Commands
//-----------------------------------
//
// FindCommandStatus
//
void
CHyperTreeFlexTable :: FindCommandStatus ( CommandT inCommand, Boolean &outEnabled,
Boolean &outUsesMark, Char16 &outMark, Str255 outName)
{
// safety check
if ( ! mHTView )
return;
HT_Pane thePane = HT_GetPane(mHTView);
outUsesMark = false;
if ( inCommand >= cmd_NavCenterBase && inCommand <= cmd_NavCenterCap ) {
outEnabled = HT_IsMenuCmdEnabled(thePane, (HT_MenuCmd)(inCommand - cmd_NavCenterBase));
return;
}
// process the regular menus...
switch ( inCommand ) {
//
// handle commands that we have to share with other parts of the UI
//
case cmd_Cut:
outEnabled = HT_IsMenuCmdEnabled(thePane, HT_CMD_CUT );
break;
case cmd_Copy:
outEnabled = HT_IsMenuCmdEnabled(thePane, HT_CMD_COPY );
break;
case cmd_Paste:
outEnabled = HT_IsMenuCmdEnabled(thePane, HT_CMD_PASTE );
break;
case cmd_Clear:
outEnabled = HT_IsMenuCmdEnabled(thePane, HT_CMD_DELETE_FILE );
break;
default:
LCommander::FindCommandStatus(inCommand, outEnabled, outUsesMark, outMark, outName);
break;
} // case of command
} // FindCommandStatus
//
// DeleteSelection
//
// Delete the selection in the given view. This is called when the user hits backspace
// in the current view, so we don't need to worry (as below) about the view switching
// during a drag and drop.
//
void
CHyperTreeFlexTable::DeleteSelection ( )
{
HT_Pane pane = HT_GetPane(mHTView);
if ( HT_IsMenuCmdEnabled(pane, HT_CMD_CUT) ) //<2F><><EFBFBD> these should be HT_CMD_CLEAR
HT_DoMenuCmd ( pane, HT_CMD_CUT );
} // DeleteSelection
//
// DeleteSelectionByDragToTrash
//
// Called when the user drags some stuff in the pane into the trash can to delete
// it. We don't rely on the current view or the PowerPlant selection because it
// may have been wiped out by a temporary drag over another workspace pane on
// the way to the trash.
//
void
CHyperTreeFlexTable :: DeleteSelectionByDragToTrash ( LArray & inItems )
{
//<2F><><EFBFBD> return if we're not allowed to delete these objects!!!
CIconTextSuite* curr = NULL;
LArrayIterator it ( inItems );
while ( it.Next(&curr) ) {
HT_Resource node = curr->GetHTNodeData();
HT_Resource parent = HT_GetParent(node);
Assert_( node != NULL && parent != NULL );
HT_RemoveChild ( parent, node );
}
} // DeleteSelectionByDragToTrash
//
// OpenRow
//
// Called to tell us when the user has clicked on a row in such a way that it should
// open. Whether this is by single click or double click is left up to parameters to
// the CStandardFlexTable, however if triggers (drop flags) are hidden and the click
// is on a container, open the container.
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//
void
CHyperTreeFlexTable :: OpenRow ( TableIndexT inRow )
{
HT_Resource node = HT_GetNthItem(GetHTView(), URDFUtilities::PPRowToHTRow(inRow) );
if (node) {
if ( !HT_IsContainer(node) ) {
// click is not in a container. If HT doesn't want it (and it's not
// a separator), launch the url
if ( !HT_IsSeparator(node) && !URDFUtilities::LaunchNode(node) )
CFrontApp::DoGetURL( HT_GetNodeURL(node) );
}
else {
// we are a container. If tree connections hidden, open up the folder otherwise
// ignore.
if ( URDFUtilities::PropertyValueBool(TopNode(), gNavCenter->showTreeConnections) == false ) {
PRBool openState = false;
HT_GetOpenState(node, &openState);
SetCellExpansion(STableCell(inRow, 1), !openState);
}
}
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} // if valid node
} // OpenRow
//
// RowCanAcceptDrop
//
// Check if the given row can accept any of the items dropped on it. We iterate over each item
// being dropped and ask the backend if that item is ok. If any item can be dropped, the entire
// lot can be dropped.
//
Boolean
CHyperTreeFlexTable::RowCanAcceptDrop ( DragReference inDragRef, TableIndexT inDropRow )
{
if ( inDropRow > mRows )
return false;
HT_Resource targetNode = HT_GetNthItem(GetHTView(), URDFUtilities::PPRowToHTRow(inDropRow) );
return NodeCanAcceptDrop ( inDragRef, targetNode );
} // CStandardFlexTable::RowCanAcceptDrop
//
// RowCanAcceptDropBetweenAbove
//
// Check if the item can be dropped above the current node. This means we need to ask the parent
// of the node for this row if it can be dropped on.
//
Boolean
CHyperTreeFlexTable::RowCanAcceptDropBetweenAbove( DragReference inDragRef, TableIndexT inDropRow )
{
if ( inDropRow > mRows )
return NodeCanAcceptDrop ( inDragRef, TopNode() );
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HT_Resource rowNode = HT_GetNthItem(GetHTView(), URDFUtilities::PPRowToHTRow(inDropRow));
HT_Resource targetNode = HT_GetParent(rowNode);
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return NodeCanAcceptDrop ( inDragRef, targetNode );
} // CStandardFlexTable::RowCanAcceptDropBetweenAbove
//
// RowIsContainer
//
// Is this row a folder or a leaf? HT will tell us!
//
Boolean
CHyperTreeFlexTable :: RowIsContainer ( const TableIndexT & inRow ) const
{
if ( inRow > mRows )
return false;
return HT_IsContainer ( HT_GetNthItem(GetHTView(), URDFUtilities::PPRowToHTRow(inRow)) );
} // RowIsContainer
//
// HiliteDropRow
//
// Override to handle drawing the "insertion bar" for every row to always indicate to the
// user exactly where the drop will occur. The inherited version of this class only draws
// the insertion bar when the mouse is between two cells, and I really don't like that.
//
void
CHyperTreeFlexTable :: HiliteDropRow ( TableIndexT inRow, Boolean inDrawBarAbove )
{
if (inRow == LArray::index_Bad)
return;
StColorState savedPen;
StColorState::Normalize();
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STableCell cell(inRow, GetHiliteColumn());
if ( mIsInternalDrop && CellIsSelected(cell) )
return; // Don't show hiliting feedback for a drag when over the selection.
Rect insertionBar, cellRect;
GetLocalCellRect(cell, cellRect);
insertionBar = cellRect;
// when the mouse is over a cell, there are several possibilities:
// - if the cell is a container, hilite the container and draw the insertion bar
// below the last visible child of the container. The left edge should be indented
// from the left edge of the container.
// - if the cell is a normal row, draw the bar directly above the row at
// the same horizontal indent as the row.
// - if the cell is a container but the mouse is between rows, treat it like
// a normal row and draw the bar directly above at the same level and do not
// hilite the container.
// - if the mouse is off the end, draw the bar directly below the last row
// at the same indent as the 1st row (since they should be siblings).
// The only problem with the behavior occurs when you want to drop something
// directly at the end of an open container. Moving the mouse to where you think
// would do it ends up dropping the item after the parent container at the
// same level as the parent, not as the last item in the container. As a result,
// the only way to add something to the end of a container is to drop it on the
// container itself. The drag feedback illustrates that this will happen when you
// drag on top of a container.
const Uint32 kInsertionBarLength = 35;
Rect iconRect;
GetIconRect ( cell, insertionBar, iconRect );
mDropNode = HT_GetNthItem( GetHTView(), URDFUtilities::PPRowToHTRow(cell.row) );
if ( mDropNode && HT_IsContainer(mDropNode) && !inDrawBarAbove ) {
// place the insertion bar below the last visible row at the appropriate
// indent level for its children
Uint32 children = HT_GetCountVisibleChildren(mDropNode);
Uint32 rowHeight = GetRowHeight(inRow);
insertionBar.bottom = insertionBar.top + rowHeight + 1;
insertionBar.bottom += (children * GetRowHeight(inRow));
insertionBar.left = iconRect.left + kIndentPerLevel; // one indentation
insertionBar.right = insertionBar.left + kInsertionBarLength;
insertionBar.top = insertionBar.bottom - 2;
// hilite the container
DrawIcons(cell, cellRect);
StRegion hiliteRgn;
GetRowHiliteRgn(inRow, hiliteRgn);
::InvertRgn(hiliteRgn);
} // if drop on container
else {
// setup insertion bar rectangle. When we're dropping at the end of the list, use
// the indent of the 1st item in the list, as they will be siblings.
if ( inRow <= mRows ) {
insertionBar.left = iconRect.left - 5;
insertionBar.right = insertionBar.left + kInsertionBarLength;
insertionBar.bottom = insertionBar.top + 1;
insertionBar.top -= 1;
}
else {
// compute the icon rect for the 1st row
Rect iconRect, cellRect;
STableCell firstCell(1, GetHiliteColumn());
GetLocalCellRect ( firstCell, cellRect );
GetIconRect ( firstCell, cellRect, iconRect );
// use the last row to compute where the bar should go vertically
Rect lastRowRect;
GetLocalCellRect ( STableCell(mRows, GetHiliteColumn()), lastRowRect );
insertionBar.left = iconRect.left;
insertionBar.right = insertionBar.left + kInsertionBarLength;
insertionBar.top = lastRowRect.bottom + 1;
insertionBar.bottom = insertionBar.top + 2;
}
} // else drop on item or between rows
DoHiliteRect ( insertionBar );
} // HiliteDropRow
//
// ItemIsAcceptable
//
// Determine if the current item can be dropped in this pane. Check to see if the
// pane as a whole accepts drops (history, for example, will not). The data, at this
// point, is fairly moot and will be checked in RowCanAcceptDrop*() routines.
//
Boolean
CHyperTreeFlexTable :: ItemIsAcceptable ( DragReference inDragRef, ItemReference inItemRef )
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{
FlavorType ignored;
bool paneAllowsDrop = HT_CanDropURLOn ( TopNode(), "http://foo.com" );
bool acceptableFlavorFound = FindBestFlavor ( inDragRef, inItemRef, ignored );
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return paneAllowsDrop && acceptableFlavorFound;
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} // ItemIsAcceptable
//
// DragSelection
//
// Overridden to use our own version of the drag task...
//
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OSErr
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CHyperTreeFlexTable :: DragSelection(
const STableCell& inCell,
const SMouseDownEvent& inMouseDown )
{
FocusDraw();
mViewBeforeDrag = GetHTView();
Assert_(mViewBeforeDrag != NULL);
// add the members of the selection to a list we will pass to the drag task.
LArray selection;
STableCell cell(0, 1);
while (GetNextSelectedRow(cell.row)) {
Rect bounds, iconBounds;
GetLocalCellRect(cell, bounds);
GetIconRect ( cell, bounds, iconBounds );
bounds.left = iconBounds.left;
HT_Resource node = HT_GetNthItem(mViewBeforeDrag, URDFUtilities::PPRowToHTRow(cell.row) );
string finalCaption = CURLDragHelper::MakeIconTextValid ( HT_GetNodeName(node) );
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CIconTextSuite* suite = new CIconTextSuite( this, bounds, GetIconID(cell.row), finalCaption, node );
selection.InsertItemsAt ( 1, LArray::index_Last, &suite );
}
// create the drag task
Rect cellBoundsOfClick;
GetLocalCellRect(inCell, cellBoundsOfClick);
CIconTextDragTask theTask(inMouseDown.macEvent, selection, cellBoundsOfClick);
// setup our special data transfer proc called upon drag completion
OSErr theErr = ::SetDragSendProc ( theTask.GetDragReference(), mSendDataUPP, (LDropArea*) this );
ThrowIfOSErr_(theErr);
theTask.DoDrag();
// There is a problem with the HT backend that if you tell it to say, delete
// both a node and its parent, things get really screwed up when it tries to
// double-delete the child. Iterate over each item, and for each node, if
// we find any children in the list, remove them. LArrayIterator should be
// smart enough to handle deletions while iterating....
LArrayIterator it(selection);
CIconTextSuite* curr = NULL;
while ( it.Next(&curr) ) {
HT_Resource currentNode = curr->GetHTNodeData();
CIconTextSuite* possibleChildSuite = NULL;
LArrayIterator inner(selection);
Uint32 counter = 1; // LArray counts from 1
while ( inner.Next(&possibleChildSuite) ) {
HT_Resource possibleChild = possibleChildSuite->GetHTNodeData();
if ( HT_GetParent(possibleChild) == currentNode )
selection.RemoveItemsAt(1, counter); // child found, delete it
else
counter++;
}
}
// remove the items if they went into the trash
if ( theTask.DropLocationIsFinderTrash() )
DeleteSelectionByDragToTrash(selection);
UnselectAllCells();
// cleanup after ourselves
LArrayIterator it2(selection);
curr = NULL;
while ( it.Next(&curr) )
delete curr;
mViewBeforeDrag = GetHTView();
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return noErr;
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} // DragSelection
//
// DoDragSendData
//
// Called when this window is the originator of the drag, after the drop has succeeded. Since we
// were the ones who created the drag task, we know that one of the flavors is emHTNodeDrag, which
// contains as its data the HT_Resource representing this drag item. Use that resource to get
// the url and title.
//
void
CHyperTreeFlexTable :: DoDragSendData( FlavorType inFlavor, ItemReference inItemRef,
DragReference inDragRef)
{
CNetscapeWindow* theWindow = dynamic_cast<CNetscapeWindow*>(LWindow::FetchWindowObject(GetMacPort()));
ThrowIfNil_(theWindow);
HT_Resource node = NULL;
Size dataSize = sizeof(HT_Resource);
OSErr err = ::GetFlavorData(inDragRef, inItemRef, emHTNodeDrag, &node, &dataSize, 0);
if ( node && !err )
CURLDragHelper::DoDragSendData ( HT_GetNodeURL(node), HT_GetNodeName(node),
inFlavor, inItemRef, inDragRef );
else
DebugStr("\pFlavor data does not contain a valid HT_Resource structure");
} // DoDragSendData
//
// ReceiveDragItem
//
// Pass this along to the implementation in CURLDragMixin.
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//
void
CHyperTreeFlexTable :: ReceiveDragItem ( DragReference inDragRef, DragAttributes inDragAttrs,
ItemReference inItemRef, Rect & inItemBounds )
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{
CHTAwareURLDragMixin::ReceiveDragItem(inDragRef, inDragAttrs, inItemRef, inItemBounds );
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} // ReceiveDragItem
//
// HandleDropOfPageProxy
//
// Called when the user drops the page proxy icon in the NavCenter. The page proxy flavor data
// consists of the url and title, separated by a return. Extract the components and create a
// new node.
//
void
CHyperTreeFlexTable :: HandleDropOfPageProxy ( const char* inURL, const char* inTitle )
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{
// cast away constness for HT
char* url = const_cast<char*>(inURL);
char* title = const_cast<char*>(inTitle);
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// Extract the node where the drop will occur. If the drop is on a container, put
// it in the container, unless the mouse is actually between the rows which means the
// user wants to put it at the same level as the container. Otherwise just put it
// above (and at the same level) as the item it is dropped on.
bool dropAtEnd = mDropNode == NULL;
if ( dropAtEnd ) {
mDropNode = HT_GetNthItem( GetHTView(), URDFUtilities::PPRowToHTRow(mRows) );
if ( !mDropNode ) {
// the view is empty, do drop on and bail
HT_DropURLAndTitleOn ( TopNode(), url, title );
return;
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}
}
if ( HT_IsContainer(mDropNode) && !mIsDropBetweenRows )
HT_DropURLAndTitleOn ( mDropNode, url, title );
else
HT_DropURLAndTitleAtPos ( mDropNode, url, title, dropAtEnd ? PR_FALSE : PR_TRUE );
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} // HandleDropOfPageProxy
//
// HandleDropOfHTResource
//
// Called when the user drops something from one RDF-savvy location (navcenter, personal toolbar)
// to another. This may result in a move or a copy, so do the right thing for each.
//
void
CHyperTreeFlexTable :: HandleDropOfHTResource ( HT_Resource dropNode )
{
// Extract the node where the drop will occur. If the drop is on a container, put
// it in the container, unless the mouse is actually between the rows which means the
// user wants to put it at the same level as the container. Otherwise just put it
// above (and at the same level) as the item it is dropped on.
bool dropAtEnd = mDropNode == NULL;
if ( dropAtEnd ) {
mDropNode = HT_GetNthItem( GetHTView(), URDFUtilities::PPRowToHTRow(mRows) );
if ( !mDropNode ) {
// the view is empty, do drop on and bail
HT_DropHTROn ( TopNode(), dropNode );
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return;
}
} // if we're dropping at end
if ( HT_IsContainer(mDropNode) && !mIsDropBetweenRows )
HT_DropHTROn ( mDropNode, dropNode );
else
HT_DropHTRAtPos ( mDropNode, dropNode, dropAtEnd ? PR_FALSE : PR_TRUE );
} // HandleDropOfHTResource
//
// HandleDropOfLocalFile
//
// Called when the user drops something from the Finder into the navCenter. Create a
// bookmark with a file URL for that file. This assumes aliases have already been
// resolved
//
void
CHyperTreeFlexTable :: HandleDropOfLocalFile ( const char* inFileURL, const char* inFileName,
const HFSFlavor & /*inFileData*/ )
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{
// Extract the node where the drop will occur. If the drop is on a container, put
// it in the container, unless the mouse is actually between the rows which means the
// user wants to put it at the same level as the container. Otherwise just put it
// above (and at the same level) as the item it is dropped on.
bool dropAtEnd = mDropNode == NULL;
if ( dropAtEnd ) {
mDropNode = HT_GetNthItem( GetHTView(), URDFUtilities::PPRowToHTRow(mRows) );
if ( !mDropNode ) {
// the view is empty, do drop on and bail
HT_DropURLAndTitleOn ( TopNode(),
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const_cast<char*>(inFileURL), const_cast<char*>(inFileName) );
return;
}
}
if ( HT_IsContainer(mDropNode) && !mIsDropBetweenRows )
HT_DropURLAndTitleOn ( mDropNode, const_cast<char*>(inFileURL), const_cast<char*>(inFileName) );
else
HT_DropURLAndTitleAtPos ( mDropNode, const_cast<char*>(inFileURL), const_cast<char*>(inFileName),
dropAtEnd ? PR_FALSE : PR_TRUE );
} // HandleDropOfLocalFile
//
// HandleDropOfText
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//
// Called when user drops a text clipping onto the navCenter. Do nothing for now.
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//
void
CHyperTreeFlexTable :: HandleDropOfText ( const char* /*inTextData*/ )
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{
DebugStr("\pDropping TEXT here not implemented");
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} // HandleDropOfText
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//
// ClickCountToOpen
//
// Instead of going by what is in the PPob, ask HT. This allows us to easily switch
// between navigation (single click) and organization (dbl-click) modes
//
Uint16
CHyperTreeFlexTable :: ClickCountToOpen ( ) const
{
if ( URDFUtilities::PropertyValueBool(TopNode(), gNavCenter->useSingleClick) )
return 1;
else
return mClickCountToOpen;
} // ClickCountToOpen
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//
// InlineEditorDone
//
// Called when the user hits return/enter or clicks outside of the inline editor. Tell RDF about the
// change and update the table.
//
void
CHyperTreeFlexTable :: InlineEditorDone ( )
{
Str255 newName;
mNameEditor->GetDescriptor(newName);
cstring nameAsCString(newName);
HT_Resource editedNode = HT_GetNthItem(GetHTView(), URDFUtilities::PPRowToHTRow(mRowBeingEdited) );
HT_SetNodeName ( editedNode, nameAsCString );
} // InlineEditorDone
//
// CanDoInlineEditing
//
// While we normally want to be able to do inline editing, we have to turn it off for panes
// that don't allow editing (like History). HT also has the chance to turn it off for the
// current view. Assumes mRowBeingEdited is correctly set.
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//
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Boolean
CHyperTreeFlexTable :: CanDoInlineEditing ( ) const
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{
if ( URDFUtilities::PropertyValueBool(TopNode(), gNavCenter->useInlineEditing) ) {
CHyperTreeHeader* header = dynamic_cast<CHyperTreeHeader*>(mTableHeader);
Assert_(header);
CHyperTreeHeader::ColumnInfo info = header->GetColumnInfo ( FindTitleColumnID() - 1 );
HT_Resource item = HT_GetNthItem( GetHTView(), URDFUtilities::PPRowToHTRow(mRowBeingEdited) );
return HT_IsNodeDataEditable ( item, info.token, info.tokenType );
}
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return false;
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} // CanDoInlineEditing
//
// TableDesiresSelectionTracking
//
// Disable marquee selection if HT doesn't want it
//
Boolean
CHyperTreeFlexTable :: TableDesiresSelectionTracking( ) const
{
return URDFUtilities::PropertyValueBool(TopNode(), gNavCenter->useSelection) == false;
} // TableDesiresSelectionTracking
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//
// ChangeSort
//
// called when the user clicks in one of the column headings to change the sort column or
// to change the sort order of the given column.
//
void
CHyperTreeFlexTable :: ChangeSort ( const LTableHeader::SortChange* inSortChange )
{
CHyperTreeHeader* header = dynamic_cast<CHyperTreeHeader*>(mTableHeader);
Assert_(header);
// CHyperTreeHeader::GetColumnInfo() is zero-based and PP is one-based.
if ( inSortChange->sortColumn >= 1 ) {
CHyperTreeHeader::ColumnInfo info = header->GetColumnInfo ( inSortChange->sortColumn - 1 );
HT_SetSortColumn ( GetHTView(), info.token, info.tokenType, inSortChange->reverseSort ? PR_TRUE : PR_FALSE );
}
else
HT_SetSortColumn ( GetHTView(), NULL, 0, PR_FALSE ); // return to natural order
Refresh();
} // ChangeSort
//
// MouseLeave
//
// Called when the mouse leaves the tree view. Just update our "hot" cell to 0,0.
//
void
CHyperTreeFlexTable :: MouseLeave ( )
{
mTooltipCell = STableCell(0, 0);
} // MouseLeave
//
// MouseWithin
//
// Called while the mouse moves w/in the tree view. Find which cell the mouse is
// currently over and if it differs from the last cell it was in, hide the
// tooltip and remember the new cell.
//
void
CHyperTreeFlexTable :: MouseWithin ( Point inPortPt, const EventRecord& )
{
SPoint32 imagePt;
PortToLocalPoint(inPortPt);
LocalToImagePoint(inPortPt, imagePt);
STableCell hitCell;
if ( GetCellHitBy(imagePt, hitCell) )
if ( mTooltipCell != hitCell ) {
mTooltipCell = hitCell;
ExecuteAttachments(msg_HideTooltip, this); // hide tooltip
}
} // MouseWithin
//
// FindTooltipForMouseLocation
//
// Return the appropriate title for the current mouse location.
void
CHyperTreeFlexTable :: FindTooltipForMouseLocation ( const EventRecord& inMacEvent,
StringPtr outTip )
{
Point temp = inMacEvent.where;
SPoint32 where;
GlobalToPortPoint(temp);
PortToLocalPoint(temp);
LocalToImagePoint(temp, where);
STableCell hitCell;
if ( GetCellHitBy(where, hitCell) && hitCell.col <= mCols ) {
CHyperTreeHeader* header = dynamic_cast<CHyperTreeHeader*>(mTableHeader);
Assert_(header != NULL);
CHyperTreeHeader::ColumnInfo info = header->GetColumnInfo(hitCell.col - 1);
HT_Resource node = HT_GetNthItem( GetHTView(), URDFUtilities::PPRowToHTRow(hitCell.row) );
void* data;
if ( HT_GetNodeData(node, info.token, info.tokenType, &data) && data ) {
switch (info.tokenType) {
case HT_COLUMN_STRING:
if ( ! HT_IsSeparator(node) ) {
const char* str = static_cast<char*>(data);
if ( str ) {
outTip[0] = strlen(str);
strcpy ( (char*) &outTip[1], str );
}
else
outTip[0] = 0;
}
else
outTip[0] = 0;
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break;
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default:
outTip[0] = 0; // don't display tooltip for other data types
} // case of column data type
} // if data is valid
else
outTip[0] = 0;
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} // if valid cell
else
::GetIndString ( outTip, 10506, 16); // supply a helpful message...
} // FindTooltipForMouseLocation
//
// AdjustCursorSelf
//
// Handle changing cursor to contextual menu cursor if cmd key is down
//
void
CHyperTreeFlexTable::AdjustCursorSelf( Point /*inPoint*/, const EventRecord& inEvent )
{
ExecuteAttachments(CContextMenuAttachment::msg_ContextMenuCursor,
static_cast<void*>(const_cast<EventRecord*>(&inEvent)));
}
//
// TableSupportsNaturalOrderSort
//
// Ask HT if this view does natural order sorting now (can the user drop in the
// middle of the table).
//
Boolean
CHyperTreeFlexTable :: TableSupportsNaturalOrderSort ( ) const
{
return HT_ContainerSupportsNaturalOrderSort(TopNode());
} // TableSupportsNaturalOrderSort
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#pragma mark -- class CHyperTreeSelector --
//
// DoSelect
//
// We need to make sure that the HTView's concept of the selection is in sync with what PP
// believes to be the current selection. Since all modifications to the selection are
// channeled through this method, we just override it to also tell HT about the selection
// change. This also picks up SelectCell() and UnselectCell() calls since the LTableRowSelector
// routes those calls here
//
void
CHyperTreeSelector :: DoSelect( const TableIndexT inRow,
Boolean inSelect,
Boolean inHilite,
Boolean inNotify )
{
HT_Resource node = HT_GetNthItem( mTreeView, URDFUtilities::PPRowToHTRow(inRow) );
if (node) {
// when we update the HT selection, we'll get an update event. We don't want
// this because we know we're updating it.
HT_NotificationMask oldMask;
HT_Pane pane = HT_GetPane ( mTreeView );
HT_GetNotificationMask ( pane, &oldMask );
HT_SetNotificationMask ( pane, 0L );
HT_SetSelectedState ( node, inSelect ? PR_TRUE : PR_FALSE );
HT_SetNotificationMask ( pane, oldMask );
}
LTableRowSelector::DoSelect(inRow, inSelect, inHilite, inNotify);
} // DoSelect
//
// CellIsSelected
//
// Just let HT tell us about what is selected and what isn't.
//
Boolean
CHyperTreeSelector :: CellIsSelected ( const STableCell &inCell ) const
{
HT_Resource node = HT_GetNthItem( mTreeView, URDFUtilities::PPRowToHTRow(inCell.row) );
return HT_IsSelected(node);
} // CellIsSelected
//
// SyncSelectorWithHT
//
// Since HT is the one that retains the selection for the view, when a new view is
// displayed, we will be out of sync. This methods gets us back in sync.
//
void
CHyperTreeSelector :: SyncSelectorWithHT ( )
{
// unselect all cells in this selector so we start with a clean slate
mSelectedRowCount = 0;
const char notSelected = 0;
for ( int i = 1; i <= GetCount(); i++ )
AssignItemsAt ( 1, i, &notSelected );
// walk through the HT selection and update our internal bookkeeping info
HT_Resource curr = HT_GetNextSelection(mTreeView, HT_TopNode(mTreeView));
while ( curr ) {
LTableRowSelector::DoSelect ( URDFUtilities::HTRowToPPRow(HT_GetNodeIndex(mTreeView, curr)),
true, true, false );
curr = HT_GetNextSelection(mTreeView, curr);
}
} // SyncSelectorWithHT