forked from mirrors/gecko-dev
		
	Automatic changes by ESLint, except for manual corrections for .xml files. Differential Revision: https://phabricator.services.mozilla.com/D4439 --HG-- extra : moz-landing-system : lando
		
			
				
	
	
		
			73 lines
		
	
	
	
		
			2.2 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
			
		
		
	
	
			73 lines
		
	
	
	
		
			2.2 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
// -*- indent-tabs-mode: nil; js-indent-level: 2 -*-
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/* This Source Code Form is subject to the terms of the Mozilla Public
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 * License, v. 2.0. If a copy of the MPL was not distributed with this
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 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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var gTreeUtils = {
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  deleteAll(aTree, aView, aItems, aDeletedItems) {
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    for (var i = 0; i < aItems.length; ++i)
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      aDeletedItems.push(aItems[i]);
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    aItems.splice(0, aItems.length);
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    var oldCount = aView.rowCount;
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    aView._rowCount = 0;
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    aTree.treeBoxObject.rowCountChanged(0, -oldCount);
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  },
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  deleteSelectedItems(aTree, aView, aItems, aDeletedItems) {
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    var selection = aTree.view.selection;
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    selection.selectEventsSuppressed = true;
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    var rc = selection.getRangeCount();
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    for (var i = 0; i < rc; ++i) {
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      var min = { }; var max = { };
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      selection.getRangeAt(i, min, max);
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      for (let j = min.value; j <= max.value; ++j) {
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        aDeletedItems.push(aItems[j]);
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        aItems[j] = null;
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      }
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    }
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    var nextSelection = 0;
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    for (i = 0; i < aItems.length; ++i) {
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      if (!aItems[i]) {
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        let j = i;
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        while (j < aItems.length && !aItems[j])
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          ++j;
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        aItems.splice(i, j - i);
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        nextSelection = j < aView.rowCount ? j - 1 : j - 2;
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        aView._rowCount -= j - i;
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        aTree.treeBoxObject.rowCountChanged(i, i - j);
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      }
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    }
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    if (aItems.length) {
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      selection.select(nextSelection);
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      aTree.treeBoxObject.ensureRowIsVisible(nextSelection);
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      aTree.focus();
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    }
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    selection.selectEventsSuppressed = false;
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  },
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  sort(aTree, aView, aDataSet, aColumn, aComparator,
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                 aLastSortColumn, aLastSortAscending) {
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    var ascending = (aColumn == aLastSortColumn) ? !aLastSortAscending : true;
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    if (aDataSet.length == 0)
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      return ascending;
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    var sortFunction = null;
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    if (aComparator) {
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      sortFunction = function(a, b) { return aComparator(a[aColumn], b[aColumn]); };
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    }
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    aDataSet.sort(sortFunction);
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    if (!ascending)
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      aDataSet.reverse();
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    aTree.view.selection.clearSelection();
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    aTree.view.selection.select(0);
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    aTree.treeBoxObject.invalidate();
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    aTree.treeBoxObject.ensureRowIsVisible(0);
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    return ascending;
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  },
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};
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