[BROWSEUI] Implement toggling the folders and search band with the toolbar and make their buttons appear pressed when they are shown.

CBaseBarSite: Ask the CBaseBar to close itself when the x button is pressed.
CBaseBar: Hide the bar and inform its site that it is closing when it gets the close command.
CShellBrowser: Cache the guid of the current vertical bar and use it to report correct command status to the toolbar.
Also implement toggling the Folders, Favorites, History and search commands.
CInternetToolbar: Query the Folders and Search command status from the site so that they can be properly be shown as pressed.

dll/win32/browseui/basebarsite.cpp

@@ -692,17 +692,10 @@ LRESULT CBaseBarSite::OnNotify(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL &bH
 
 LRESULT CBaseBarSite::OnCommand(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL &bHandled)
 {
-    HRESULT                             hResult;
-    CComPtr<IDockingWindow>             parentSite;
-
     if (HIWORD(wParam) == BN_CLICKED && LOWORD(wParam) == IDM_BASEBAR_CLOSE)
     {
-        hResult = fDeskBarSite->QueryInterface(IID_PPV_ARG(IDockingWindow, &parentSite));
+        /* Tell the base bar to hide */
-        if (!SUCCEEDED(hResult))
+        IUnknown_Exec(fDeskBarSite, IID_IDeskBarClient, 0, 0, NULL, NULL);
-        {
-            return E_FAIL;
-        }
-        parentSite->ShowDW(FALSE);
         bHandled = TRUE;
     }
     return 0;

dll/win32/browseui/internettoolbar.cpp

@@ -749,6 +749,16 @@ HRESULT CInternetToolbar::LockUnlockToolbars(bool locked)
     return S_OK;
 }
 
+HRESULT CInternetToolbar::SetState(const GUID *pguidCmdGroup, long commandID, OLECMD* pcmd)
+{
+    long state = 0;
+    if (pcmd->cmdf & OLECMDF_ENABLED)
+        state |= TBSTATE_ENABLED;
+    if (pcmd->cmdf & OLECMDF_LATCHED)
+        state |= TBSTATE_CHECKED;
+    return SetState(pguidCmdGroup, commandID, state);
+}
+
 HRESULT CInternetToolbar::CommandStateChanged(bool newValue, int commandID)
 {
     HRESULT                                 hResult;
@@ -762,6 +772,18 @@ HRESULT CInternetToolbar::CommandStateChanged(bool newValue, int commandID)
             //    if up, QueryStatus for up state and update it
             //
             //for buttons in fCommandCategory, update with QueryStatus of fCommandTarget
+
+            OLECMD commandList[4];
+            commandList[0].cmdID = 0x1c;
+            commandList[1].cmdID = 0x1d;
+            commandList[2].cmdID = 0x1e;
+            commandList[3].cmdID = 0x23;
+            IUnknown_QueryStatus(fSite, CGID_Explorer, 4, commandList, NULL);
+            SetState(&CLSID_CommonButtons, gSearchCommandID, &commandList[0]);
+            SetState(&CLSID_CommonButtons, gFoldersCommandID, &commandList[3]);
+            //SetState(&CLSID_CommonButtons, gFavoritesCommandID, &commandList[2]);
+            //SetState(&CLSID_CommonButtons, gHistoryCommandID, &commandList[1]);
+
             break;
         case 1:
             // forward
@@ -1504,7 +1526,13 @@ LRESULT CInternetToolbar::OnUpLevel(WORD wNotifyCode, WORD wID, HWND hWndCtl, BO
 
 LRESULT CInternetToolbar::OnSearch(WORD wNotifyCode, WORD wID, HWND hWndCtl, BOOL &bHandled)
 {
-    return IUnknown_Exec(fSite, CLSID_CommonButtons, 0x123, 1, NULL, NULL); 
+    OLECMD cmd;
+    cmd.cmdID = 0x1c;
+    IUnknown_QueryStatus(fSite, CGID_Explorer, 1, &cmd, NULL);
+    if (cmd.cmdf & OLECMDF_LATCHED)
+        return IUnknown_Exec(fSite, CGID_Explorer, 0x1c, 1, NULL, NULL); 
+    else
+        return IUnknown_Exec(fSite, CLSID_CommonButtons, 0x123, 1, NULL, NULL); 
 }
 
 LRESULT CInternetToolbar::OnFolders(WORD wNotifyCode, WORD wID, HWND hWndCtl, BOOL &bHandled)

dll/win32/browseui/internettoolbar.h

@@ -104,6 +104,7 @@ public:
     HRESULT CreateAndInitBandProxy();
     HRESULT IsBandVisible(int BandID);
     HRESULT ToggleBandVisibility(int BandID);
+    HRESULT SetState(const GUID *pguidCmdGroup, long commandID, OLECMD* pcmd);
 
 public:
     // *** IInputObject specific methods ***

dll/win32/browseui/shellbars/CBaseBar.cpp

@@ -261,8 +261,17 @@ HRESULT STDMETHODCALLTYPE CBaseBar::Exec(const GUID *pguidCmdGroup, DWORD nCmdID
         switch (nCmdID)
         {
             case 0:
+            {
                 // hide current band
+                ShowDW(0);
+
+                // Inform our site that we closed
+                VARIANT var;
+                V_VT(&var) = VT_UNKNOWN;
+                V_UNKNOWN(&var) = static_cast<IDeskBar *>(this);
+                IUnknown_Exec(fSite, CGID_Explorer, 0x22, 0, &var, NULL);
                 break;
+            }
             case 2:
                 // switch bands
                 break;

dll/win32/browseui/shellbrowser.cpp

@@ -299,6 +299,7 @@ private:
     CComPtr<ITravelLog>                     fTravelLog;
     HMENU                                   fCurrentMenuBar;
     CABINETSTATE                            fCabinetState;
+    GUID                                    fCurrentVertBar;             //The guid of the built in vertical bar that is being shown
     // The next three fields support persisted history for shell views.
     // They do not need to be reference counted.
     IOleObject                              *fHistoryObject;
@@ -1276,6 +1277,12 @@ HRESULT CShellBrowser::ShowBand(const CLSID &classID, bool vertical)
     if (FAILED_UNEXPECTEDLY(hResult))
         return hResult;
 
+    if (vertical)
+    {
+        fCurrentVertBar = classID;
+        FireCommandStateChangeAll();
+    }
+
     return S_OK;
 }
 
@@ -1939,15 +1946,28 @@ HRESULT STDMETHODCALLTYPE CShellBrowser::QueryStatus(const GUID *pguidCmdGroup,
             {
                 case 0x1c:  // search
                     prgCmds->cmdf = OLECMDF_SUPPORTED | OLECMDF_ENABLED;
+                    if (IsEqualCLSID(CLSID_SH_SearchBand, fCurrentVertBar) ||
+                        IsEqualCLSID(CLSID_SearchBand, fCurrentVertBar) ||
+                        IsEqualCLSID(CLSID_IE_SearchBand, fCurrentVertBar) ||
+                        IsEqualCLSID(CLSID_FileSearchBand, fCurrentVertBar))
+                    {
+                        prgCmds->cmdf |= OLECMDF_LATCHED;
+                    }
                     break;
                 case 0x1d:  // history
                     prgCmds->cmdf = OLECMDF_SUPPORTED | OLECMDF_ENABLED;
+                    if (IsEqualCLSID(CLSID_SH_HistBand, fCurrentVertBar))
+                        prgCmds->cmdf |= OLECMDF_LATCHED;
                     break;
                 case 0x1e:  // favorites
                     prgCmds->cmdf = OLECMDF_SUPPORTED | OLECMDF_ENABLED;
+                    if (IsEqualCLSID(CLSID_SH_FavBand, fCurrentVertBar))
+                        prgCmds->cmdf |= OLECMDF_LATCHED;
                     break;
                 case 0x23:  // folders
-                    prgCmds->cmdf = OLECMDF_SUPPORTED | OLECMDF_ENABLED | OLECMDF_LATCHED;
+                    prgCmds->cmdf = OLECMDF_SUPPORTED | OLECMDF_ENABLED;
+                    if (IsEqualCLSID(CLSID_ExplorerBand, fCurrentVertBar))
+                        prgCmds->cmdf |= OLECMDF_LATCHED;
                     break;
                 default:
                     prgCmds->cmdf = 0;
@@ -1990,8 +2010,46 @@ HRESULT STDMETHODCALLTYPE CShellBrowser::Exec(const GUID *pguidCmdGroup, DWORD n
     {
         switch (nCmdID)
         {
-            case 0x23:
+            case 0x1c: //Toggle Search
-                hResult = ShowBand(CLSID_ExplorerBand, true);
+                if (IsEqualCLSID(CLSID_SH_SearchBand, fCurrentVertBar) ||
+                    IsEqualCLSID(CLSID_SearchBand, fCurrentVertBar) ||
+                    IsEqualCLSID(CLSID_IE_SearchBand, fCurrentVertBar) ||
+                    IsEqualCLSID(CLSID_FileSearchBand, fCurrentVertBar))
+                {
+                    hResult = IUnknown_ShowDW(fClientBars[BIVerticalBaseBar].clientBar.p, FALSE);
+                    memset(&fCurrentVertBar, 0, sizeof(fCurrentVertBar));
+                    FireCommandStateChangeAll();
+                }
+                return S_OK;
+            case 0x1d: //Toggle History
+            case 0x1e: //Toggle Favorites
+            case 0x23: //Toggle Folders
+                const GUID* pclsid;
+                if (nCmdID == 0x1d) pclsid = &CLSID_SH_HistBand;
+                else if (nCmdID == 0x1e) pclsid = &CLSID_SH_FavBand;
+                else pclsid = &CLSID_ExplorerBand;
+
+                if (IsEqualCLSID(*pclsid, fCurrentVertBar))
+                {
+                    hResult = IUnknown_ShowDW(fClientBars[BIVerticalBaseBar].clientBar.p, FALSE);
+                    memset(&fCurrentVertBar, 0, sizeof(fCurrentVertBar));
+                    FireCommandStateChangeAll();
+                }
+                else
+                {
+                    hResult = ShowBand(*pclsid, true);
+                }
+                return S_OK;
+            case 0x22:
+                //Sent when a band closes
+                if (V_VT(pvaIn) != VT_UNKNOWN)
+                    return E_INVALIDARG;
+
+                if (IUnknownIsEqual(V_UNKNOWN(pvaIn), fClientBars[BIVerticalBaseBar].clientBar.p))
+                {
+                    memset(&fCurrentVertBar, 0, sizeof(fCurrentVertBar));
+                    FireCommandStateChangeAll();
+                }
                 return S_OK;
             case 0x27:
                 if (nCmdexecopt == 1)