def ensureContentPanel(self):
if self.contentPanel is None:
DOM.setInnerHTML(self.contentElem, "")
self.contentPanel = TreeContentPanel(self.contentElem)
self.contentPanel.setTreeItem(self)
if self.getTree() is not None:
self.tree.adopt(self.contentPanel)
def ensureContentPanel(self):
if self.contentPanel is None:
DOM.setInnerHTML(self.contentElem, "")
self.contentPanel = TreeContentPanel(self.contentElem)
self.contentPanel.setTreeItem(self)
if self.getTree() is not None:
self.tree.adopt(self.contentPanel)
class TreeItem(UIObject):
# also callable as TreeItem(widget)
def __init__(self, html=None, **ka):
self.children = []
self.attached = False
self.contentPanel = None
self.itemTable = None
self.contentElem = None
self.imgElem = None
self.childSpanElem = None
self.open = False
self.parent = None
self.selected = False
self.tree = None
self.userObject = None
element = ka.pop('Element', None) or DOM.createDiv()
self.setElement(element)
self.itemTable = DOM.createTable()
self.contentElem = DOM.createSpan()
self.childSpanElem = DOM.createSpan()
self.imgElem = DOM.createImg()
tbody = DOM.createTBody()
tr = DOM.createTR()
tdImg = DOM.createTD()
tdContent = DOM.createTD()
DOM.appendChild(self.itemTable, tbody)
DOM.appendChild(tbody, tr)
DOM.appendChild(tr, tdImg)
DOM.appendChild(tr, tdContent)
DOM.setStyleAttribute(tdImg, "verticalAlign", "middle")
DOM.setStyleAttribute(tdContent, "verticalAlign", "middle")
DOM.setStyleAttribute(self.getElement(), "cursor", "pointer")
DOM.appendChild(self.getElement(), self.itemTable)
DOM.appendChild(self.getElement(), self.childSpanElem)
DOM.appendChild(tdImg, self.imgElem)
DOM.appendChild(tdContent, self.contentElem)
# XXX - can't set pos relative on a div node,
# or white_space on an HTML Table..
try:
DOM.setAttribute(self.getElement(), "position", "relative")
except:
pass
DOM.setStyleAttribute(self.contentElem, "display", "inline")
DOM.setStyleAttribute(self.getElement(), "whiteSpace", "nowrap")
try:
DOM.setAttribute(self.itemTable, "whiteSpace", "nowrap")
except:
pass
DOM.setStyleAttribute(self.childSpanElem, "whiteSpace", "nowrap")
self.setStyleName(self.contentElem, "gwt-TreeItem", True)
#if not ka.has_key('StyleName'): ka['StyleName']="gwt-TreeItem"
if html is not None:
try:
# messy. pyjd can do unicode, pyjs can't
if isinstance(html, unicode):
ka['HTML'] = html
elif isinstance(html, basestring):
ka['HTML'] = html
else:
ka['Widget'] = html
except:
if isinstance(html, basestring):
ka['HTML'] = html
else:
ka['Widget'] = html
UIObject.__init__(self, **ka)
def __iter__(self):
return self.children.__iter__()
# also callable as addItem(widget) and addItem(itemText)
def addItem(self, item):
return self.insertItem(item)
# also callable as addItem(widget) and addItem(itemText)
def insertItem(self, item, index=None):
if not hasattr(item, "getTree"):
#if not item.getTree:
item = TreeItem(item)
if (item.getParentItem() is not None) or (item.getTree() is not None):
item.remove()
item.setTree(self.tree)
item.setParentItem(self)
if index is None:
self.children.append(item)
else:
self.children.insert(index, item)
DOM.setStyleAttribute(item.getElement(), "marginLeft", "16px")
if index is None:
DOM.appendChild(self.childSpanElem, item.getElement())
else:
DOM.insertChild(self.childSpanElem, item.getElement(), index)
if len(self.children) == 1:
self.updateState()
return item
def onAttach(self):
if self.attached:
return
self.attached = True
for item in self.children:
item.onAttach()
w = self.getWidget()
if w:
w.onAttach()
def onDetach(self):
self.attached = False
for item in self.children:
item.onDetach()
w = self.getWidget()
if w:
w.onDetach()
def getChild(self, index):
if (index < 0) or (index >= len(self.children)):
return None
return self.children[index]
def getChildCount(self):
return len(self.children)
def getChildIndex(self, child):
return self.children.index(child)
def getHTML(self):
return DOM.getInnerHTML(self.contentElem)
def getText(self):
return DOM.getInnerText(self.contentElem)
def getParentItem(self):
return self.parent
def getState(self):
return self.open
def getTree(self):
return self.tree
def getUserObject(self):
return self.userObject
def getWidget(self):
if self.contentPanel is None:
return None
return self.contentPanel.getWidget()
def isSelected(self):
return self.selected
def remove(self):
if self.parent is not None:
self.parent.removeItem(self)
elif self.tree is not None:
self.tree.removeItem(self)
def removeItem(self, item):
if item not in self.children:
return
item.setTree(None)
item.setParentItem(None)
self.children.remove(item)
DOM.removeChild(self.childSpanElem, item.getElement())
if len(self.children) == 0:
self.updateState()
def removeItems(self):
while self.getChildCount() > 0:
self.removeItem(self.getChild(0))
def setHTML(self, html):
self.clearContentPanel()
DOM.setInnerHTML(self.contentElem, html)
def setText(self, text):
self.clearContentPanel()
DOM.setInnerText(self.contentElem, text)
def setSelected(self, selected):
if self.selected == selected:
return
self.selected = selected
self.setStyleName(self.contentElem, "gwt-TreeItem-selected", selected)
def setState(self, open, fireEvents=True):
# lkcl: experiment with allowing event state changed to be
# fired even on items with no children. otherwise you never
# get to find out if an end-item was selected!
if not open or len(self.children) != 0:
self.open = open
self.updateState()
if fireEvents:
self.tree.fireStateChanged(self)
def setUserObject(self, userObj):
self.userObject = userObj
def setWidget(self, widget):
self.ensureContentPanel()
self.contentPanel.setWidget(widget)
def clearContentPanel(self):
if self.contentPanel is not None:
child = self.contentPanel.getWidget()
if child is not None:
self.contentPanel.remove(child)
if self.tree is not None:
self.tree.disown(self.contentPanel)
self.contentPanel = None
def ensureContentPanel(self):
if self.contentPanel is None:
DOM.setInnerHTML(self.contentElem, "")
self.contentPanel = TreeContentPanel(self.contentElem)
self.contentPanel.setTreeItem(self)
if self.getTree() is not None:
self.tree.adopt(self.contentPanel)
def addTreeItems(self, accum):
for item in self.children:
accum.append(item)
item.addTreeItems(accum)
def getChildren(self):
return self.children
def getContentElem(self):
return self.contentElem
def getContentHeight(self):
return DOM.getIntAttribute(self.itemTable, "offsetHeight")
def getImageElement(self):
return self.imgElem
def getTreeTop(self):
item = self
ret = 0
while item is not None:
ret += DOM.getIntAttribute(item.getElement(), "offsetTop")
item = item.getParentItem()
return ret
def getFocusableWidget(self):
widget = self.getWidget()
if hasattr(widget, "setFocus"):
return widget
return None
def imgSrc(self, img):
if self.tree is None:
return img
src = self.tree.getImageBase() + img
return src
def setParentItem(self, parent):
self.parent = parent
def setTree(self, tree):
if self.tree == tree:
return
if self.tree is not None:
if self.tree.getSelectedItem() == self:
self.tree.setSelectedItem(None)
if self.contentPanel is not None:
self.tree.disown(self.contentPanel)
self.tree = tree
for child in self.children:
child.setTree(tree)
self.updateState()
if tree is not None and self.contentPanel is not None:
tree.adopt(self.contentPanel)
def updateState(self):
if len(self.children) == 0:
self.setVisible(self.childSpanElem, False)
DOM.setAttribute(self.imgElem, "src", self.imgSrc("tree_white.gif"))
return
if self.open:
self.setVisible(self.childSpanElem, True)
DOM.setAttribute(self.imgElem, "src", self.imgSrc("tree_open.gif"))
else:
self.setVisible(self.childSpanElem, False)
DOM.setAttribute(self.imgElem, "src", self.imgSrc("tree_closed.gif"))
def updateStateRecursive(self):
self.updateState()
for i in range(len(self.children)):
child = self.children[i]
child.updateStateRecursive()
class TreeItem(UIObject):
# also callable as TreeItem(widget)
def __init__(self, html=None, **ka):
self.children = []
self.attached = False
self.contentPanel = None
self.itemTable = None
self.contentElem = None
self.imgElem = None
self.childSpanElem = None
self.open = False
self.parent = None
self.selected = False
self.tree = None
self.userObject = None
element = ka.pop('Element', None) or DOM.createDiv()
self.setElement(element)
self.itemTable = DOM.createTable()
self.contentElem = DOM.createSpan()
self.childSpanElem = DOM.createSpan()
self.imgElem = self.createImage()
tbody = DOM.createTBody()
tr = DOM.createTR()
tdImg = DOM.createTD()
tdContent = DOM.createTD()
DOM.appendChild(self.itemTable, tbody)
DOM.appendChild(tbody, tr)
DOM.appendChild(tr, tdImg)
DOM.appendChild(tr, tdContent)
DOM.setStyleAttribute(tdImg, "verticalAlign", "middle")
DOM.setStyleAttribute(tdContent, "verticalAlign", "middle")
DOM.setStyleAttribute(self.getElement(), "cursor", "pointer")
DOM.appendChild(self.getElement(), self.itemTable)
DOM.appendChild(self.getElement(), self.childSpanElem)
DOM.appendChild(tdImg, self.imgElem)
DOM.appendChild(tdContent, self.contentElem)
self.setStyleName(tdImg, "gwt-TreeItemTdImg", True)
self.setStyleName(tdContent, "gwt-TreeItemTdContent", True)
# XXX - can't set pos relative on a div node,
# or white_space on an HTML Table..
try:
DOM.setAttribute(self.getElement(), "position", "relative")
except:
pass
DOM.setStyleAttribute(self.contentElem, "display", "inline")
DOM.setStyleAttribute(self.getElement(), "whiteSpace", "nowrap")
try:
DOM.setAttribute(self.itemTable, "whiteSpace", "nowrap")
except:
pass
DOM.setStyleAttribute(self.childSpanElem, "whiteSpace", "nowrap")
self.setStyleName(self.contentElem, "gwt-TreeItem", True)
#if not ka.has_key('StyleName'): ka['StyleName']="gwt-TreeItem"
if html is not None:
try:
# messy. pyjd can do unicode, pyjs can't
if isinstance(html, unicode):
ka['HTML'] = html
elif isinstance(html, basestring):
ka['HTML'] = html
else:
ka['Widget'] = html
except:
if isinstance(html, basestring):
ka['HTML'] = html
else:
ka['Widget'] = html
UIObject.__init__(self, **ka)
def __iter__(self):
return self.children.__iter__()
def createImage(self):
return DOM.createImg()
# also callable as addItem(widget) and addItem(itemText)
def addItem(self, item):
return self.insertItem(item)
# also callable as addItem(widget) and addItem(itemText)
def insertItem(self, item, index=None):
if not hasattr(item, "getTree"):
#if not item.getTree:
item = TreeItem(item)
if (item.getParentItem() is not None) or (item.getTree() is not None):
item.remove()
item.setTree(self.tree)
item.setParentItem(self)
if index is None:
self.children.append(item)
else:
self.children.insert(index, item)
DOM.setStyleAttribute(item.getElement(), "marginLeft", "16px")
if index is None:
DOM.appendChild(self.childSpanElem, item.getElement())
else:
DOM.insertChild(self.childSpanElem, item.getElement(), index)
if len(self.children) == 1:
self.updateState()
return item
def onAttach(self):
if self.attached:
return
self.attached = True
for item in self.children:
item.onAttach()
w = self.getWidget()
if w:
w.onAttach()
def onDetach(self):
self.attached = False
for item in self.children:
item.onDetach()
w = self.getWidget()
if w:
w.onDetach()
def getChild(self, index):
if (index < 0) or (index >= len(self.children)):
return None
return self.children[index]
def getChildCount(self):
return len(self.children)
def getChildIndex(self, child):
return self.children.index(child)
def getHTML(self):
return DOM.getInnerHTML(self.contentElem)
def getText(self):
return DOM.getInnerText(self.contentElem)
def getParentItem(self):
return self.parent
def getState(self):
return self.open
def getTree(self):
return self.tree
def getUserObject(self):
return self.userObject
def getWidget(self):
if self.contentPanel is None:
return None
return self.contentPanel.getWidget()
def isSelected(self):
return self.selected
def remove(self):
if self.parent is not None:
self.parent.removeItem(self)
elif self.tree is not None:
self.tree.removeItem(self)
def removeItem(self, item):
if item not in self.children:
return
item.setTree(None)
item.setParentItem(None)
self.children.remove(item)
DOM.removeChild(self.childSpanElem, item.getElement())
if len(self.children) == 0:
self.updateState()
def removeItems(self):
while self.getChildCount() > 0:
self.removeItem(self.getChild(0))
def setHTML(self, html):
self.clearContentPanel()
DOM.setInnerHTML(self.contentElem, html)
def setText(self, text):
self.clearContentPanel()
DOM.setInnerText(self.contentElem, text)
def setSelected(self, selected):
if self.selected == selected:
return
self.selected = selected
self.setStyleName(self.contentElem, "gwt-TreeItem-selected", selected)
def setState(self, open, fireEvents=True):
# lkcl: experiment with allowing event state changed to be
# fired even on items with no children. otherwise you never
# get to find out if an end-item was selected!
if not open or len(self.children) != 0:
self.open = open
self.updateState()
if fireEvents:
self.tree.fireStateChanged(self)
def setUserObject(self, userObj):
self.userObject = userObj
def setWidget(self, widget):
self.ensureContentPanel()
self.contentPanel.setWidget(widget)
def clearContentPanel(self):
if self.contentPanel is not None:
child = self.contentPanel.getWidget()
if child is not None:
self.contentPanel.remove(child)
if self.tree is not None:
self.tree.disown(self.contentPanel)
self.contentPanel = None
def ensureContentPanel(self):
if self.contentPanel is None:
DOM.setInnerHTML(self.contentElem, "")
self.contentPanel = TreeContentPanel(self.contentElem)
self.contentPanel.setTreeItem(self)
if self.getTree() is not None:
self.tree.adopt(self.contentPanel)
def addTreeItems(self, accum):
for item in self.children:
accum.append(item)
item.addTreeItems(accum)
def getChildren(self):
return self.children
def getContentElem(self):
return self.contentElem
def getContentHeight(self):
return DOM.getIntAttribute(self.itemTable, "offsetHeight")
def getImageElement(self):
return self.imgElem
def getTreeTop(self):
item = self
ret = 0
while item is not None:
ret += DOM.getIntAttribute(item.getElement(), "offsetTop")
item = item.getParentItem()
return ret
def getFocusableWidget(self):
widget = self.getWidget()
if hasattr(widget, "setFocus"):
return widget
return None
def imgSrc(self, img):
if self.tree is None:
return img
src = self.tree.getImageBase() + img
return src
def setParentItem(self, parent):
self.parent = parent
def setTree(self, tree):
if self.tree == tree:
return
if self.tree is not None:
if self.tree.getSelectedItem() == self:
self.tree.setSelectedItem(None)
if self.contentPanel is not None:
self.tree.disown(self.contentPanel)
self.tree = tree
for child in self.children:
child.setTree(tree)
self.updateState()
if tree is not None and self.contentPanel is not None:
tree.adopt(self.contentPanel)
def updateState(self):
if len(self.children) == 0:
self.setVisible(self.childSpanElem, False)
#DOM.setAttribute(self.imgElem, "src", self.imgSrc("tree_white.gif"))
self.drawImage("white")
return
if self.open:
self.setVisible(self.childSpanElem, True)
self.drawImage("open")
else:
self.setVisible(self.childSpanElem, False)
self.drawImage("closed")
def updateStateRecursive(self):
self.updateState()
for i in range(len(self.children)):
child = self.children[i]
child.updateStateRecursive()
def drawImage(self, mode):
if mode == "white":
src = tree_white
elif mode == "open":
src = tree_open
elif mode == "closed":
src = tree_closed
DOM.setAttribute(self.imgElem, "src", src)
