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# -*- Mode: Java; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
#
# 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 Netscape are
# Copyright (C) 1998 Netscape Communications Corporation. All
# Rights Reserved.
#
# Contributor(s):
#
function DeleteAllFromTree
(tree, view, table, deletedTable, removeButton, removeAllButton) {
// remove all items from table and place in deleted table
for (var i=0; i<table.length; i++) {
deletedTable[deletedTable.length] = table[i];
}
table.length = 0;
// redisplay
var oldCount = view.rowCount;
view.rowCount = 0;
tree.treeBoxObject.rowCountChanged(0, -oldCount);
// disable buttons
document.getElementById(removeButton).setAttribute("disabled", "true")
document.getElementById(removeAllButton).setAttribute("disabled","true");
}
function DeleteSelectedItemFromTree
(tree, view, table, deletedTable, removeButton, removeAllButton) {
// Turn off tree selection notifications during the deletion
tree.treeBoxObject.view.selection.selectEventsSuppressed = true;
// remove selected items from list (by setting them to null) and place in deleted list
var selections = GetTreeSelections(tree);
for (var s=selections.length-1; s>= 0; s--) {
var i = selections[s];
deletedTable[deletedTable.length] = table[i];
table[i] = null;
}
// collapse list by removing all the null entries
for (var j=0; j<table.length; j++) {
if (table[j] == null) {
var k = j;
while ((k < table.length) && (table[k] == null)) {
k++;
}
table.splice(j, k-j);
view.rowCount -= k - j;
tree.treeBoxObject.rowCountChanged(j, j - k);
}
}
// update selection and/or buttons
if (table.length) {
// update selection
var nextSelection = (selections[0] < table.length) ? selections[0] : table.length-1;
tree.treeBoxObject.view.selection.select(nextSelection);
tree.treeBoxObject.ensureRowIsVisible(nextSelection);
} else {
// disable buttons
document.getElementById(removeButton).setAttribute("disabled", "true")
document.getElementById(removeAllButton).setAttribute("disabled","true");
}
tree.treeBoxObject.view.selection.selectEventsSuppressed = false;
}
function GetTreeSelections(tree) {
var selections = [];
var select = tree.treeBoxObject.selection;
if (select) {
var count = select.getRangeCount();
var min = new Object();
var max = new Object();
for (var i=0; i<count; i++) {
select.getRangeAt(i, min, max);
for (var k=min.value; k<=max.value; k++) {
if (k != -1) {
selections[selections.length] = k;
}
}
}
}
return selections;
}
function SortTree(tree, view, table, column, lastSortColumn, lastSortAscending, updateSelection) {
// remember which item was selected so we can restore it after the sort
var selections = GetTreeSelections(tree);
var selectedNumber = selections.length ? table[selections[0]].id : -1;
// determine if sort is to be ascending or descending
var ascending = (column == lastSortColumn) ? !lastSortAscending : true;
// do the sort or re-sort
var compareFunc = function compare(first, second) {
return first[column].toLowerCase().localeCompare(second[column].toLowerCase());
}
table.sort(compareFunc);
if (!ascending)
table.reverse();
// restore the selection
var selectedRow = -1;
if (selectedNumber>=0 && updateSelection) {
for (var s=0; s<table.length; s++) {
if (table[s].id == selectedNumber) {
// update selection
// note: we need to deselect before reselecting in order to trigger ...Selected()
tree.treeBoxObject.view.selection.select(-1);
tree.treeBoxObject.view.selection.select(s);
selectedRow = s;
break;
}
}
}
// display the results
tree.treeBoxObject.invalidate();
if (selectedRow >= 0) {
tree.treeBoxObject.ensureRowIsVisible(selectedRow)
}
return ascending;
}
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