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- /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
- /* ***** BEGIN LICENSE BLOCK *****
- * Version: MPL 1.1/GPL 2.0/LGPL 2.1
- *
- * The contents of this file are subject to the Mozilla Public License Version
- * 1.1 (the "License"); you may not use this file except in compliance with
- * the License. You may obtain a copy of the License at
- * http://www.mozilla.org/MPL/
- *
- * Software distributed under the License is distributed on an "AS IS" basis,
- * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
- * for the specific language governing rights and limitations under the
- * License.
- *
- * The Original Code is mozilla.org code.
- *
- * The Initial Developer of the Original Code is
- * Netscape Communications Corporation.
- * Portions created by the Initial Developer are Copyright (C) 1998
- * the Initial Developer. All Rights Reserved.
- *
- * Contributor(s):
- * Dave Hyatt <hyatt@mozilla.org> (Original Author)
- * Jan Varga <varga@ku.sk>
- *
- * Alternatively, the contents of this file may be used under the terms of
- * either of the GNU General Public License Version 2 or later (the "GPL"),
- * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
- * in which case the provisions of the GPL or the LGPL are applicable instead
- * of those above. If you wish to allow use of your version of this file only
- * under the terms of either the GPL or the LGPL, and not to allow others to
- * use your version of this file under the terms of the MPL, indicate your
- * decision by deleting the provisions above and replace them with the notice
- * and other provisions required by the GPL or the LGPL. If you do not delete
- * the provisions above, a recipient may use your version of this file under
- * the terms of any one of the MPL, the GPL or the LGPL.
- *
- * ***** END LICENSE BLOCK ***** */
-
- #include "nsITreeBoxObject.idl"
- #include "nsISupportsArray.idl"
- #include "domstubs.idl"
-
- interface nsITreeSelection;
- interface nsITreeColumn;
-
- [scriptable, uuid(22f034b7-a879-43ad-baee-ba6fd4d466ce)]
- interface nsITreeView : nsISupports
- {
- /**
- * The total number of rows in the tree (including the offscreen rows).
- */
- readonly attribute long rowCount;
-
- /**
- * The selection for this view.
- */
- attribute nsITreeSelection selection;
-
- /**
- * An atomized list of properties for a given row. Each property, x, that
- * the view gives back will cause the pseudoclass :moz-tree-row-x
- * to be matched on the pseudoelement ::moz-tree-row.
- */
- void getRowProperties(in long index, in nsISupportsArray properties);
-
- /**
- * An atomized list of properties for a given cell. Each property, x, that
- * the view gives back will cause the pseudoclass :moz-tree-cell-x
- * to be matched on the ::moz-tree-cell pseudoelement.
- */
- void getCellProperties(in long row, in nsITreeColumn col, in nsISupportsArray properties);
-
- /**
- * Called to get properties to paint a column background. For shading the sort
- * column, etc.
- */
- void getColumnProperties(in nsITreeColumn col, in nsISupportsArray properties);
-
- /**
- * Methods that can be used to test whether or not a twisty should be drawn,
- * and if so, whether an open or closed twisty should be used.
- */
- boolean isContainer(in long index);
- boolean isContainerOpen(in long index);
- boolean isContainerEmpty(in long index);
-
- /**
- * isSeparator is used to determine if the row at index is a separator.
- * A value of true will result in the tree drawing a horizontal separator.
- * The tree uses the ::moz-tree-separator pseudoclass to draw the separator.
- */
- boolean isSeparator(in long index);
-
- /**
- * Specifies if there is currently a sort on any column. Used mostly by dragdrop
- * to affect drop feedback.
- */
- boolean isSorted();
-
- const short DROP_BEFORE = -1;
- const short DROP_ON = 0;
- const short DROP_AFTER = 1;
- /**
- * Methods used by the drag feedback code to determine if a drag is allowable at
- * the current location. To get the behavior where drops are only allowed on
- * items, such as the mailNews folder pane, always return false when
- * the orientation is not DROP_ON.
- */
- boolean canDrop(in long index, in long orientation);
-
- /**
- * Called when the user drops something on this view. The |orientation| param
- * specifies before/on/after the given |row|.
- */
- void drop(in long row, in long orientation);
-
- /**
- * Methods used by the tree to draw thread lines in the tree.
- * getParentIndex is used to obtain the index of a parent row.
- * If there is no parent row, getParentIndex returns -1.
- */
- long getParentIndex(in long rowIndex);
-
- /**
- * hasNextSibling is used to determine if the row at rowIndex has a nextSibling
- * that occurs *after* the index specified by afterIndex. Code that is forced
- * to march down the view looking at levels can optimize the march by starting
- * at afterIndex+1.
- */
- boolean hasNextSibling(in long rowIndex, in long afterIndex);
-
- /**
- * The level is an integer value that represents
- * the level of indentation. It is multiplied by the width specified in the
- * :moz-tree-indentation pseudoelement to compute the exact indendation.
- */
- long getLevel(in long index);
-
- /**
- * The image path for a given cell. For defining an icon for a cell.
- * If the empty string is returned, the :moz-tree-image pseudoelement
- * will be used.
- */
- AString getImageSrc(in long row, in nsITreeColumn col);
-
- /**
- * The progress mode for a given cell. This method is only called for
- * columns of type |progressmeter|.
- */
- const short PROGRESS_NORMAL = 1;
- const short PROGRESS_UNDETERMINED = 2;
- const short PROGRESS_NONE = 3;
- long getProgressMode(in long row, in nsITreeColumn col);
-
- /**
- * The value for a given cell. This method is only called for columns
- * of type other than |text|.
- */
- AString getCellValue(in long row, in nsITreeColumn col);
-
- /**
- * The text for a given cell. If a column consists only of an image, then
- * the empty string is returned.
- */
- AString getCellText(in long row, in nsITreeColumn col);
-
- /**
- * Called during initialization to link the view to the front end box object.
- */
- void setTree(in nsITreeBoxObject tree);
-
- /**
- * Called on the view when an item is opened or closed.
- */
- void toggleOpenState(in long index);
-
- /**
- * Called on the view when a header is clicked.
- */
- void cycleHeader(in nsITreeColumn col);
-
- /**
- * Should be called from a XUL onselect handler whenever the selection changes.
- */
- void selectionChanged();
-
- /**
- * Called on the view when a cell in a non-selectable cycling column (e.g., unread/flag/etc.) is clicked.
- */
- void cycleCell(in long row, in nsITreeColumn col);
-
- /**
- * isEditable is called to ask the view if the cell contents are editable.
- * A value of true will result in the tree popping up a text field when
- * the user tries to inline edit the cell.
- */
- boolean isEditable(in long row, in nsITreeColumn col);
-
- /**
- * setCellValue is called when the value of the cell has been set by the user.
- * This method is only called for columns of type other than |text|.
- */
- void setCellValue(in long row, in nsITreeColumn col, in AString value);
-
- /**
- * setCellText is called when the contents of the cell have been edited by the user.
- */
- void setCellText(in long row, in nsITreeColumn col, in AString value);
-
- /**
- * A command API that can be used to invoke commands on the selection. The tree
- * will automatically invoke this method when certain keys are pressed. For example,
- * when the DEL key is pressed, performAction will be called with the "delete" string.
- */
- void performAction(in wstring action);
-
- /**
- * A command API that can be used to invoke commands on a specific row.
- */
- void performActionOnRow(in wstring action, in long row);
-
- /**
- * A command API that can be used to invoke commands on a specific cell.
- */
- void performActionOnCell(in wstring action, in long row, in nsITreeColumn col);
- };
-