private void viewsToolStripSplitButton_DropDownItemClicked(object sender, ToolStripItemClickedEventArgs e)
{
NativeMethods.FOLDERSETTINGS fs = new NativeMethods.FOLDERSETTINGS();
m_shellView.GetCurrentInfo(ref fs);
// Each menu item is associated with it's corresponding view mode
foreach (ToolStripMenuItem item in viewsToolStripSplitButton.DropDownItems)
{
if (fs.ViewMode == (uint)item.Tag)
{
// Don't change view
if (item == e.ClickedItem)
return;
item.Checked = false;
}
else if (item == e.ClickedItem)
{
item.Checked = true;
}
}
SetCurrentViewMode((uint)e.ClickedItem.Tag);
}
private void viewsToolStripSplitButton_DropDownOpening(object sender, EventArgs e)
{
NativeMethods.FOLDERSETTINGS fs = new NativeMethods.FOLDERSETTINGS();
m_shellView.GetCurrentInfo(ref fs);
// Update the checked menu item to the current view mode
foreach (ToolStripMenuItem item in viewsToolStripSplitButton.DropDownItems)
{
item.Checked = (fs.ViewMode == (uint)item.Tag);
}
}
// Informs Microsoft Windows Explorer to browse to another folder.
int NativeMethods.IShellBrowser.BrowseObject(IntPtr pidl, uint wFlags)
{
int hr;
IntPtr folderTmpPtr;
NativeMethods.IShellFolder folderTmp;
IntPtr pidlTmp;
if (NativeMethods.Shell32.ILIsEqual(pidl, m_desktopPidl))
{
// pidl is desktop folder
pidlTmp = NativeMethods.Shell32.ILClone(m_desktopPidl);
folderTmp = m_desktopFolder;
}
else if ((wFlags & NativeMethods.SBSP_RELATIVE) != 0)
{
// SBSP_RELATIVE - pidl is relative from the current folder
if ((hr = m_currentFolder.BindToObject(pidl, IntPtr.Zero, ref NativeMethods.IID_IShellFolder,
out folderTmpPtr)) != NativeMethods.S_OK)
return hr;
pidlTmp = NativeMethods.Shell32.ILCombine(m_pidlAbsCurrent, pidl);
folderTmp = (NativeMethods.IShellFolder)Marshal.GetObjectForIUnknown(folderTmpPtr);
}
else if ((wFlags & NativeMethods.SBSP_PARENT) != 0)
{
// SBSP_PARENT - Browse the parent folder (ignores the pidl)
pidlTmp = GetParentPidl(m_pidlAbsCurrent);
string pathTmp = GetDisplayName(m_desktopFolder, pidlTmp, NativeMethods.SHGNO.SHGDN_FORPARSING);
if (pathTmp.Equals(m_desktopPath))
{
pidlTmp = NativeMethods.Shell32.ILClone(m_desktopPidl);
folderTmp = m_desktopFolder;
}
else
{
if ((hr = m_desktopFolder.BindToObject(pidlTmp, IntPtr.Zero, ref NativeMethods.IID_IShellFolder,
out folderTmpPtr)) != NativeMethods.S_OK)
return hr;
folderTmp = (NativeMethods.IShellFolder)Marshal.GetObjectForIUnknown(folderTmpPtr);
}
}
else
{
// SBSP_ABSOLUTE - pidl is an absolute pidl (relative from desktop)
pidlTmp = NativeMethods.Shell32.ILClone(pidl);
if ((hr = m_desktopFolder.BindToObject(pidlTmp, IntPtr.Zero, ref NativeMethods.IID_IShellFolder,
out folderTmpPtr)) != NativeMethods.S_OK)
return hr;
folderTmp = (NativeMethods.IShellFolder)Marshal.GetObjectForIUnknown(folderTmpPtr);
}
if (folderTmp == null)
{
NativeMethods.Shell32.ILFree(pidlTmp);
return NativeMethods.E_FAIL;
}
string path = GetDisplayName(m_desktopFolder, pidlTmp, NativeMethods.SHGNO.SHGDN_FORPARSING);
// FIX: Force the special folder My documents
if (path == m_myDocsPath && !NativeMethods.Shell32.ILIsEqual(pidlTmp, m_myDocsPidl))
{
NativeMethods.Shell32.ILFree(pidlTmp);
pidlTmp = NativeMethods.Shell32.ILClone(m_myDocsPidl);
}
// If the path root is a drive make sure it's available
string driveName;
if (PathUtils.PathRootIsDrive(path, out driveName))
{
DriveInfo di = new DriveInfo(driveName);
if (di.DriveType == DriveType.CDRom)
{
// The drive is an optical disk drive
string message = "The selected disk drive is not in use. Check to make sure a disk is inserted.";
while (!di.IsReady)
{
// Loop until a disk is inserted or cancel is clicked
if (MessageBoxWithFocusRestore(message, MessageBoxButtons.RetryCancel, MessageBoxIcon.Error) ==
DialogResult.Cancel)
return NativeMethods.S_OK;
}
}
else if (di.DriveType == DriveType.NoRootDirectory)
{
// The drive does not have a root directory, e.g. an unconnected network drive
string message =
string.Format("The drive '{0}' is not valid. Enter a valid drive letter.",
driveName.Substring(0, 2));
MessageBoxWithFocusRestore(message, MessageBoxButtons.OK, MessageBoxIcon.Information);
return NativeMethods.S_OK;
}
}
m_currentFolder = folderTmp;
NativeMethods.FOLDERSETTINGS fs = new NativeMethods.FOLDERSETTINGS();
NativeMethods.IShellView lastIShellView = m_shellView;
if (lastIShellView != null)
lastIShellView.GetCurrentInfo(ref fs); // Copy the old folder settings
else
{
fs = new NativeMethods.FOLDERSETTINGS();
fs.fFlags = (uint)m_flags;
fs.ViewMode = (uint)m_viewMode;
}
// Create the IShellView
IntPtr iShellViewPtr;
hr = folderTmp.CreateViewObject(Handle, ref NativeMethods.IID_IShellView, out iShellViewPtr);
if (hr == NativeMethods.S_OK)
{
m_shellView = (NativeMethods.IShellView)Marshal.GetObjectForIUnknown(iShellViewPtr);
m_hWndListView = IntPtr.Zero;
NativeMethods.RECT rc =
new NativeMethods.RECT(FileViewPadding.Left, FileViewPadding.Top,
ClientSize.Width - FileViewPadding.Right,
ClientSize.Height - FileViewPadding.Bottom);
int res;
try
{
// Create the list view
res = m_shellView.CreateViewWindow(lastIShellView, ref fs, this, ref rc, ref m_hWndListView);
}
catch (COMException)
{
return NativeMethods.E_FAIL;
}
if (res < 0)
return NativeMethods.E_FAIL;
bool shellViewHasFocus = m_shellViewHasFocus;
// Release the old IShellView
if (lastIShellView != null)
{
lastIShellView.GetCurrentInfo(ref fs);
lastIShellView.UIActivate((uint)NativeMethods.SVUIA_STATUS.SVUIA_DEACTIVATE);
lastIShellView.DestroyViewWindow();
Marshal.ReleaseComObject(lastIShellView);
}
// Give the new IShellView focus if the old one had focus
m_shellView.UIActivate(shellViewHasFocus
? (uint)NativeMethods.SVUIA_STATUS.SVUIA_ACTIVATE_FOCUS
: (uint)NativeMethods.SVUIA_STATUS.SVUIA_ACTIVATE_NOFOCUS);
IntPtr previousPidl = m_pidlAbsCurrent;
m_pidlAbsCurrent = pidlTmp;
UpdateUI(previousPidl);
// Clear the selection
m_selectedPidls = null;
OnSelectionChanged();
}
return NativeMethods.S_OK;
}
private void viewsToolStripSplitButton_ButtonClick(object sender, EventArgs e)
{
NativeMethods.FOLDERSETTINGS fs = new NativeMethods.FOLDERSETTINGS();
m_shellView.GetCurrentInfo(ref fs);
foreach (ToolStripMenuItem item in viewsToolStripSplitButton.DropDownItems)
{
if (fs.ViewMode == (uint)item.Tag)
{
// Set the view mode to the next menu item
int index = viewsToolStripSplitButton.DropDownItems.IndexOf(item) + 1;
if (index == viewsToolStripSplitButton.DropDownItems.Count)
index = 0;
SetCurrentViewMode((uint)viewsToolStripSplitButton.DropDownItems[index].Tag);
break;
}
}
}
protected override void OnHandleDestroyed(EventArgs e)
{
m_pidlAbsCurrent = IntPtr.Zero;
m_selectedPidls = null;
// Release the IShellView
if (m_shellView != null)
{
if (m_restoreLastViewMode)
{
// Saves the view mode if the RestoreLastViewMode property is set to true
NativeMethods.FOLDERSETTINGS fs = new NativeMethods.FOLDERSETTINGS();
m_shellView.GetCurrentInfo(ref fs);
m_viewMode = (FileDialogViewMode)fs.ViewMode;
}
m_shellView.UIActivate((uint)NativeMethods.SVUIA_STATUS.SVUIA_DEACTIVATE);
m_shellView.DestroyViewWindow();
Marshal.ReleaseComObject(m_shellView);
m_shellView = null;
}
m_backItemsOverflow.Clear();
backToolStripSplitButton.DropDownItems.Clear();
backToolStripSplitButton.Enabled = false;
base.OnHandleDestroyed(e);
}
