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"""Class browser.

XXX TO DO:

- reparse when source changed (maybe just a button would be OK?)

(or recheck on window popup)

- add popup menu with more options (e.g. doc strings, base classes, imports)

- show function argument list? (have to do pattern matching on source)

- should the classes and methods lists also be in the module's menu bar?

- add base classes to class browser tree

"""

import os

import sys

import pyclbr

from idlelib import PyShell

from idlelib.WindowList import ListedToplevel

from idlelib.TreeWidget import TreeNode, TreeItem, ScrolledCanvas

from idlelib.configHandler import idleConf

class ClassBrowser:

def __init__(self, flist, name, path):

# XXX This API should change, if the file doesn't end in ".py"

# XXX the code here is bogus!

self.name = name

self.file = os.path.join(path[0], self.name + ".py")

self.init(flist)

def close(self, event=None):

self.top.destroy()

self.node.destroy()

def init(self, flist):

self.flist = flist

# reset pyclbr

pyclbr._modules.clear()

# create top

self.top = top = ListedToplevel(flist.root)

top.protocol("WM_DELETE_WINDOW", self.close)

top.bind("<Escape>", self.close)

self.settitle()

top.focus_set()

# create scrolled canvas

theme = idleConf.GetOption('main','Theme','name')

background = idleConf.GetHighlight(theme, 'normal')['background']

sc = ScrolledCanvas(top, bg=background, highlightthickness=0, takefocus=1)

sc.frame.pack(expand=1, fill="both")

item = self.rootnode()

self.node = node = TreeNode(sc.canvas, None, item)

node.update()

node.expand()

def settitle(self):

self.top.wm_title("Class Browser - " + self.name)

self.top.wm_iconname("Class Browser")

def rootnode(self):

return ModuleBrowserTreeItem(self.file)

class ModuleBrowserTreeItem(TreeItem):

def __init__(self, file):

self.file = file

def GetText(self):

return os.path.basename(self.file)

def GetIconName(self):

return "python"

def GetSubList(self):

sublist = []

for name in self.listclasses():

item = ClassBrowserTreeItem(name, self.classes, self.file)

sublist.append(item)

return sublist

def OnDoubleClick(self):

if os.path.normcase(self.file[-3:]) != ".py":

return

if not os.path.exists(self.file):

return

PyShell.flist.open(self.file)

def IsExpandable(self):

return os.path.normcase(self.file[-3:]) == ".py"

def listclasses(self):

dir, file = os.path.split(self.file)

name, ext = os.path.splitext(file)

if os.path.normcase(ext) != ".py":

return []

try:

dict = pyclbr.readmodule_ex(name, [dir] + sys.path)

except ImportError as msg:

return []

items = []

self.classes = {}

for key, cl in dict.items():

if cl.module == name:

s = key

if hasattr(cl, 'super') and cl.super:

supers = []

for sup in cl.super:

if type(sup) is type(''):

sname = sup

else:

sname = sup.name

if sup.module != cl.module:

sname = "%s.%s" % (sup.module, sname)

supers.append(sname)

s = s + "(%s)" % ", ".join(supers)

items.append((cl.lineno, s))

self.classes[s] = cl

items.sort()

list = []

for item, s in items:

list.append(s)

return list

class ClassBrowserTreeItem(TreeItem):

def __init__(self, name, classes, file):

self.name = name

self.classes = classes

self.file = file

try:

self.cl = self.classes[self.name]

except (IndexError, KeyError):

self.cl = None

self.isfunction = isinstance(self.cl, pyclbr.Function)

def GetText(self):

if self.isfunction:

return "def " + self.name + "(...)"

else:

return "class " + self.name

def GetIconName(self):

if self.isfunction:

return "python"

else:

return "folder"

def IsExpandable(self):

if self.cl:

try:

return not not self.cl.methods

except AttributeError:

return False

def GetSubList(self):

if not self.cl:

return []

sublist = []

for name in self.listmethods():

item = MethodBrowserTreeItem(name, self.cl, self.file)

sublist.append(item)

return sublist

def OnDoubleClick(self):

if not os.path.exists(self.file):

return

edit = PyShell.flist.open(self.file)

if hasattr(self.cl, 'lineno'):

lineno = self.cl.lineno

edit.gotoline(lineno)

def listmethods(self):

if not self.cl:

return []

items = []

for name, lineno in self.cl.methods.items():

items.append((lineno, name))

items.sort()

list = []

for item, name in items:

list.append(name)

return list

class MethodBrowserTreeItem(TreeItem):

def __init__(self, name, cl, file):

self.name = name

self.cl = cl

self.file = file

def GetText(self):

return "def " + self.name + "(...)"

def GetIconName(self):

return "python" # XXX

def IsExpandable(self):

return 0

def OnDoubleClick(self):

if not os.path.exists(self.file):

return

edit = PyShell.flist.open(self.file)

edit.gotoline(self.cl.methods[self.name])

def main():

try:

file = __file__

except NameError:

file = sys.argv[0]

if sys.argv[1:]:

file = sys.argv[1]

else:

file = sys.argv[0]

dir, file = os.path.split(file)

name = os.path.splitext(file)[0]

ClassBrowser(PyShell.flist, name, [dir])

if sys.stdin is sys.__stdin__:

mainloop()

if __name__ == "__main__":

main()

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