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118 lines
4.6 KiB
118 lines
4.6 KiB
# A sample of using Vista's IExplorerBrowser interfaces...
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# Currently doesn't quite work:
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# * CPU sits at 100% while running.
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import sys
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import pythoncom
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from win32com.shell import shell, shellcon
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import win32gui, win32con, win32api
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from win32com.server.util import wrap, unwrap
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# event handler for the browser.
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IExplorerBrowserEvents_Methods = """OnNavigationComplete OnNavigationFailed
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OnNavigationPending OnViewCreated""".split()
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class EventHandler:
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_com_interfaces_ = [shell.IID_IExplorerBrowserEvents]
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_public_methods_ = IExplorerBrowserEvents_Methods
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def OnNavigationComplete(self, pidl):
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print("OnNavComplete", pidl)
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def OnNavigationFailed(self, pidl):
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print("OnNavigationFailed", pidl)
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def OnNavigationPending(self, pidl):
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print("OnNavigationPending", pidl)
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def OnViewCreated(self, view):
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print("OnViewCreated", view)
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# And if our demo view has been registered, it may well
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# be that view!
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try:
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pyview = unwrap(view)
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print("and look - its a Python implemented view!", pyview)
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except ValueError:
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pass
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class MainWindow:
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def __init__(self):
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message_map = {
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win32con.WM_DESTROY: self.OnDestroy,
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win32con.WM_COMMAND: self.OnCommand,
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win32con.WM_SIZE: self.OnSize,
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}
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# Register the Window class.
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wc = win32gui.WNDCLASS()
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hinst = wc.hInstance = win32api.GetModuleHandle(None)
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wc.lpszClassName = "test_explorer_browser"
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wc.lpfnWndProc = message_map # could also specify a wndproc.
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classAtom = win32gui.RegisterClass(wc)
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# Create the Window.
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style = win32con.WS_OVERLAPPEDWINDOW | win32con.WS_VISIBLE
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self.hwnd = win32gui.CreateWindow( classAtom, "Python IExplorerBrowser demo", style, \
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0, 0, win32con.CW_USEDEFAULT, win32con.CW_USEDEFAULT, \
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0, 0, hinst, None)
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eb = pythoncom.CoCreateInstance(shellcon.CLSID_ExplorerBrowser, None, pythoncom.CLSCTX_ALL, shell.IID_IExplorerBrowser)
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# as per MSDN docs, hook up events early
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self.event_cookie = eb.Advise(wrap(EventHandler()))
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eb.SetOptions(shellcon.EBO_SHOWFRAMES)
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rect = win32gui.GetClientRect(self.hwnd)
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# Set the flags such that the folders autoarrange and non web view is presented
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flags = (shellcon.FVM_LIST, shellcon.FWF_AUTOARRANGE | shellcon.FWF_NOWEBVIEW)
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eb.Initialize(self.hwnd, rect, (0, shellcon.FVM_DETAILS))
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if len(sys.argv)==2:
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# If an arg was specified, ask the desktop parse it.
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# You can pass anything explorer accepts as its '/e' argument -
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# eg, "::{guid}\::{guid}" etc.
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# "::{20D04FE0-3AEA-1069-A2D8-08002B30309D}" is "My Computer"
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pidl = shell.SHGetDesktopFolder().ParseDisplayName(0, None, sys.argv[1])[1]
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else:
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# And start browsing at the root of the namespace.
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pidl = []
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eb.BrowseToIDList(pidl, shellcon.SBSP_ABSOLUTE)
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# and for some reason the "Folder" view in the navigator pane doesn't
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# magically synchronize itself - so let's do that ourself.
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# Get the tree control.
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sp = eb.QueryInterface(pythoncom.IID_IServiceProvider)
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try:
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tree = sp.QueryService(shell.IID_INameSpaceTreeControl,
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shell.IID_INameSpaceTreeControl)
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except pythoncom.com_error as exc:
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# this should really only fail if no "nav" frame exists...
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print("Strange - failed to get the tree control even though " \
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"we asked for a EBO_SHOWFRAMES")
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print(exc)
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else:
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# get the IShellItem for the selection.
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si = shell.SHCreateItemFromIDList(pidl, shell.IID_IShellItem)
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# set it to selected.
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tree.SetItemState(si, shellcon.NSTCIS_SELECTED, shellcon.NSTCIS_SELECTED)
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#eb.FillFromObject(None, shellcon.EBF_NODROPTARGET);
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#eb.SetEmptyText("No known folders yet...");
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self.eb = eb
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def OnCommand(self, hwnd, msg, wparam, lparam):
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pass
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def OnDestroy(self, hwnd, msg, wparam, lparam):
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print("tearing down ExplorerBrowser...")
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self.eb.Unadvise(self.event_cookie)
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self.eb.Destroy()
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self.eb = None
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print("shutting down app...")
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win32gui.PostQuitMessage(0)
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def OnSize(self, hwnd, msg, wparam, lparam):
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x = win32api.LOWORD(lparam)
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y = win32api.HIWORD(lparam)
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self.eb.SetRect(None, (0, 0, x, y))
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def main():
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w=MainWindow()
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win32gui.PumpMessages()
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if __name__=='__main__':
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main()
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