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treeview.js
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treeview.js
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function nsTableTreeView(aRowCount)
{
this.__proto__ = new nsTreeView();
for (var idx = 0; idx < aRowCount; idx++)
this.mData.push(new treeItem("row" + String(idx) + "_"));
}
function nsTreeTreeView()
{
this.__proto__ = new nsTreeView();
this.mData = [
new treeItem("row1"),
new treeItem("row2_", true, [new treeItem("row2.1_"), new treeItem("row2.2_")]),
new treeItem("row3_", false, [new treeItem("row3.1_"), new treeItem("row3.2_")]),
new treeItem("row4")
];
}
function nsTreeView() { }
nsTreeView.prototype =
{
//////////////////////////////////////////////////////////////////////////////
// nsITreeView implementation
get rowCount()
{
return this.getRowCountIntl(this.mData);
},
setTree: function setTree(aTree)
{
this.mTree = aTree;
},
getCellText: function getCellText(aRow, aCol)
{
var data = this.getDataForIndex(aRow);
if (aCol in data.colsText)
return data.colsText[aCol];
return data.text + aCol.id;
},
getCellValue: function getCellValue(aRow, aCol)
{
var data = this.getDataForIndex(aRow);
return data.value;
},
getRowProperties: function getRowProperties(aIndex, aProperties) {},
getCellProperties: function getCellProperties(aIndex, aCol, aProperties)
{
if (!aCol.cycler)
return;
var data = this.getDataForIndex(aIndex);
var atom = this.mCyclerStates[data.cyclerState];
aProperties.AppendElement(atom);
},
getColumnProperties: function getColumnProperties(aCol, aProperties) {},
getParentIndex: function getParentIndex(aRowIndex)
{
var info = this.getInfoByIndex(aRowIndex);
return info.parentIndex;
},
hasNextSibling: function hasNextSibling(aRowIndex, aAfterIndex) { },
getLevel: function getLevel(aIndex)
{
var info = this.getInfoByIndex(aIndex);
return info.level;
},
getImageSrc: function getImageSrc(aRow, aCol) {},
getProgressMode: function getProgressMode(aRow, aCol) {},
isContainer: function isContainer(aIndex)
{
var data = this.getDataForIndex(aIndex);
return data.open != undefined;
},
isContainerOpen: function isContainerOpen(aIndex)
{
var data = this.getDataForIndex(aIndex);
return data.open;
},
isContainerEmpty: function isContainerEmpty(aIndex)
{
var data = this.getDataForIndex(aIndex);
return data.open == undefined;
},
isSeparator: function isSeparator(aIndex) {},
isSorted: function isSorted() {},
toggleOpenState: function toggleOpenState(aIndex)
{
var data = this.getDataForIndex(aIndex);
data.open = !data.open;
var rowCount = this.getRowCountIntl(data.children);
if (data.open)
this.mTree.rowCountChanged(aIndex + 1, rowCount);
else
this.mTree.rowCountChanged(aIndex + 1, -rowCount);
},
selectionChanged: function selectionChanged() {},
cycleHeader: function cycleHeader(aCol) {},
cycleCell: function cycleCell(aRow, aCol)
{
var data = this.getDataForIndex(aRow);
data.cyclerState = (data.cyclerState + 1) % 3;
this.mTree.invalidateCell(aRow, aCol);
},
isEditable: function isEditable(aRow, aCol)
{
return true;
},
isSelectable: function isSelectable(aRow, aCol) {},
setCellText: function setCellText(aRow, aCol, aValue)
{
var data = this.getDataForIndex(aRow);
data.colsText[aCol] = aValue;
},
setCellValue: function setCellValue(aRow, aCol, aValue)
{
var data = this.getDataForIndex(aRow);
data.value = aValue;
this.mTree.invalidateCell(aRow, aCol);
},
performAction: function performAction(aAction) {},
performActionOnRow: function performActionOnRow(aAction, aRow) {},
performActionOnCell: function performActionOnCell(aAction, aRow, aCol) {},
//////////////////////////////////////////////////////////////////////////////
// public implementation
appendItem: function appendItem(aText)
{
this.mData.push(new treeItem(aText));
},
//////////////////////////////////////////////////////////////////////////////
// private implementation
getDataForIndex: function getDataForIndex(aRowIndex)
{
return this.getInfoByIndex(aRowIndex).data;
},
getInfoByIndex: function getInfoByIndex(aRowIndex)
{
var info = {
data: null,
parentIndex: -1,
level: 0,
index: -1
};
this.getInfoByIndexIntl(aRowIndex, info, this.mData, 0);
return info;
},
getRowCountIntl: function getRowCountIntl(aChildren)
{
var rowCount = 0;
for (var childIdx = 0; childIdx < aChildren.length; childIdx++) {
rowCount++;
var data = aChildren[childIdx];
if (data.open)
rowCount += this.getRowCountIntl(data.children);
}
return rowCount;
},
getInfoByIndexIntl: function getInfoByIndexIntl(aRowIdx, aInfo,
aChildren, aLevel)
{
var rowIdx = aRowIdx;
for (var childIdx = 0; childIdx < aChildren.length; childIdx++) {
var data = aChildren[childIdx];
aInfo.index++;
if (rowIdx == 0) {
aInfo.data = data;
aInfo.level = aLevel;
return -1;
}
if (data.open) {
var parentIdx = aInfo.index;
rowIdx = this.getInfoByIndexIntl(rowIdx - 1, aInfo, data.children,
aLevel + 1);
if (rowIdx == -1) {
if (aInfo.parentIndex == -1)
aInfo.parentIndex = parentIdx;
return 0;
}
} else {
rowIdx--;
}
}
return rowIdx;
},
mTree: null,
mData: [],
mCyclerStates: [
createAtom("cyclerState1"),
createAtom("cyclerState2"),
createAtom("cyclerState3")
]
};
function treeItem(aText, aOpen, aChildren)
{
this.text = aText;
this.colsText = {};
this.open = aOpen;
this.value = "true";
this.cyclerState = 0;
if (aChildren)
this.children = aChildren;
}
function createAtom(aName)
{
return Components.classes["@mozilla.org/atom-service;1"]
.getService(Components.interfaces.nsIAtomService).getAtom(aName);
}