class FileBrowser(LinearLayout):
__interfaces__ = [AdapterView.OnItemClickListener]
__fields__ = {"handler": FileOpenInterface}
def __init__(self, context):
LinearLayout.__init__(self, context)
self.handler = None
envDir = Environment.getExternalStoragePublicDirectory(
Environment.DIRECTORY_DOWNLOADS)
self.fileAdapter = SpriteFileListAdapter(envDir,
[".spr", ",ff9", ".ff9"])
self.fileView = ListView(context)
self.fileView.setOnItemClickListener(self)
self.fileView.setAdapter(self.fileAdapter)
self.addView(
self.fileView,
ViewGroup.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT,
ViewGroup.LayoutParams.WRAP_CONTENT))
"""We provide a method that the activity can use to request a new list of
file names, only refreshing the view if the list has changed."""
def rescan(self):
if self.fileAdapter.update():
self.fileView.setAdapter(self.fileAdapter)
"""This method is called when the user clicks a file name in the
`ListView`, responding by calling the appropriate method of the registered
handler object."""
@args(void, [AdapterView, View, int, long])
def onItemClick(self, parent, view, position, id):
file = self.fileAdapter.items[position]
if self.handler != None:
self.handler.handleFileOpen(file)
"""The following method handles registration of an object that implements
the `FileOpenInterface` interface."""
@args(void, [FileOpenInterface])
def setHandler(self, handler):
self.handler = handler
class LocationWidget(RelativeLayout):
__interfaces__ = [
AdapterView.OnItemClickListener, AdapterView.OnItemLongClickListener,
AddLocationListener, RemoveLocationListener
]
@args(void, [Context, LocationListener])
def __init__(self, context, locationHandler):
RelativeLayout.__init__(self, context)
self.currentItem = -1
self.mode = "normal"
self.locationHandler = locationHandler
self.adapter = self.getAdapter()
self.listView = ListView(context)
self.listView.setAdapter(self.adapter)
self.listView.setOnItemClickListener(self)
self.listView.setOnItemLongClickListener(self)
self.addWidget = AddWidget(context, self)
self.addWidget.setId(1)
self.removeWidget = RemoveWidget(context, self)
listParams = RelativeLayout.LayoutParams(
ViewGroup.LayoutParams.WRAP_CONTENT,
ViewGroup.LayoutParams.WRAP_CONTENT)
listParams.addRule(RelativeLayout.ALIGN_PARENT_TOP)
listParams.addRule(RelativeLayout.ABOVE, 1)
self.addView(self.listView, listParams)
self.addView(self.addWidget, self.getAddParams())
def readLocations(self):
self.locations = {}
self.order = []
if Environment.getExternalStorageState() != Environment.MEDIA_MOUNTED:
return
storageDir = Environment.getExternalStoragePublicDirectory(
Environment.DIRECTORY_DOWNLOADS)
subdir = File(storageDir, "WeatherForecast")
if subdir.exists():
f = File(subdir, "locations.txt")
try:
stream = BufferedReader(FileReader(f))
while True:
line = stream.readLine()
if line == None:
break
spec = line.trim()
pieces = spec.split("/")
if len(pieces) < 3:
continue
place = pieces[len(pieces) - 1]
self.locations[place] = spec
self.order.add(place)
stream.close()
except FileNotFoundException:
pass
def writeLocations(self):
f = Files.createExternalFile(Environment.DIRECTORY_DOWNLOADS,
"WeatherForecast", "locations.txt", None,
None)
try:
stream = FileWriter(f)
for key in self.order:
stream.write(self.locations[key] + "\n")
stream.flush()
stream.close()
except FileNotFoundException:
pass
@args(LocationAdapter, [])
def getAdapter(self):
self.readLocations()
keys = []
for location in self.order:
keys.add(location)
return LocationAdapter(keys)
def onItemClick(self, parent, view, position, id):
try:
location = self.adapter.items[int(id)]
self.locationHandler.locationEntered(self.locations[location])
except IndexError:
pass
if self.currentItem != -1:
self.leaveRemoveMode()
def addLocation(self, name, spec):
if self.locations.containsKey(name):
return
self.locations[name] = spec
self.order.add(name)
self.adapter.items.add(name)
self.listView.setAdapter(self.adapter)
def onItemLongClick(self, parent, view, position, id):
if self.mode == "normal":
self.currentItem = position
self.enterRemoveMode()
return True
def enterRemoveMode(self):
self.removeView(self.addWidget)
self.addWidget.setId(2)
removeParams = RelativeLayout.LayoutParams(
ViewGroup.LayoutParams.WRAP_CONTENT,
ViewGroup.LayoutParams.WRAP_CONTENT)
removeParams.addRule(RelativeLayout.ALIGN_PARENT_BOTTOM)
removeParams.addRule(RelativeLayout.ALIGN_PARENT_LEFT)
removeParams.addRule(RelativeLayout.ALIGN_PARENT_RIGHT)
self.addView(self.removeWidget, removeParams)
self.removeWidget.setId(1)
self.mode = "remove"
def leaveRemoveMode(self):
self.removeView(self.removeWidget)
self.removeWidget.setId(2)
self.addView(self.addWidget, self.getAddParams())
self.addWidget.setId(1)
self.mode = "normal"
def removeLocation(self):
place = self.order.remove(self.currentItem)
self.locations.remove(place)
self.adapter.items.remove(place)
self.listView.setAdapter(self.adapter)
self.currentItem = -1
self.leaveRemoveMode()
def cancelRemove(self):
self.currentItem = -1
self.leaveRemoveMode()
@args(RelativeLayout.LayoutParams, [])
def getAddParams(self):
addParams = RelativeLayout.LayoutParams(
ViewGroup.LayoutParams.WRAP_CONTENT,
ViewGroup.LayoutParams.WRAP_CONTENT)
addParams.addRule(RelativeLayout.ALIGN_PARENT_BOTTOM)
addParams.addRule(RelativeLayout.ALIGN_PARENT_LEFT)
addParams.addRule(RelativeLayout.ALIGN_PARENT_RIGHT)
return addParams