set string length to 0 in AllocBeforeWrite() just to be tidy (replaces patch 1123226)

[wxWidgets.git] / src / html / helpctrl.cpp

diff --git a/src/html/helpctrl.cpp b/src/html/helpctrl.cpp
index 58d03d42913048536ae196c0a67fcaf5759231bb..9ac2bce17817b5dc822914d653560a054b800cf7 100644 (file)
--- a/src/html/helpctrl.cpp
+++ b/src/html/helpctrl.cpp
@@ -9,8 +9,8 @@
 // Licence:     wxWindows licence
 /////////////////////////////////////////////////////////////////////////////
 
 // Licence:     wxWindows licence
 /////////////////////////////////////////////////////////////////////////////
 

-#ifdef __GNUG__
-#pragma implementation
+#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
+#pragma implementation "helpctrl.h"

 #endif
 
 // For compilers that support precompilation, includes "wx.h".
 #endif
 
 // For compilers that support precompilation, includes "wx.h".


@@ -20,19 +20,32 @@
 #pragma hdrstop
 #endif
 
 #pragma hdrstop
 #endif
 

-#include "wx/defs.h"
+#if wxUSE_WXHTML_HELP

 
 

-#if wxUSE_HTML
+#ifndef WX_PRECOMP
+    #include "wx/app.h"
+    #include "wx/intl.h"
+#endif // WX_PRECOMP

 
 #include "wx/html/helpctrl.h"
 
 #include "wx/html/helpctrl.h"

-#include "wx/wx.h"

 #include "wx/busyinfo.h"
 
 #include "wx/busyinfo.h"
 

-IMPLEMENT_DYNAMIC_CLASS(wxHtmlHelpController, wxEvtHandler)
+#ifdef __WXGTK__
+    // for the hack in AddGrabIfNeeded()
+    #include "wx/dialog.h"
+#endif // __WXGTK__

 
 

-BEGIN_EVENT_TABLE(wxHtmlHelpController, wxEvtHandler)
-EVT_CLOSE(wxHtmlHelpController::OnCloseFrame)
-END_EVENT_TABLE()
+#if wxUSE_HELP
+    #include "wx/tipwin.h"
+#endif
+
+
+#if wxUSE_LIBMSPACK
+#include "wx/html/forcelnk.h"
+FORCE_LINK(wxhtml_chm_support)
+#endif
+
+IMPLEMENT_DYNAMIC_CLASS(wxHtmlHelpController, wxHelpControllerBase)

 
 wxHtmlHelpController::wxHtmlHelpController(int style)
 {
 
 wxHtmlHelpController::wxHtmlHelpController(int style)
 {


@@ -45,9 +58,28 @@ wxHtmlHelpController::wxHtmlHelpController(int style)
 
 wxHtmlHelpController::~wxHtmlHelpController()
 {
 
 wxHtmlHelpController::~wxHtmlHelpController()
 {

-    WriteCustomization(m_Config, m_ConfigRoot);
+    if (m_Config)
+        WriteCustomization(m_Config, m_ConfigRoot);

     if (m_helpFrame)
     if (m_helpFrame)

-        m_helpFrame->Close();
+        DestroyHelpWindow();
+}
+
+
+void wxHtmlHelpController::DestroyHelpWindow()
+{
+    //if (m_Config) WriteCustomization(m_Config, m_ConfigRoot);
+    if (m_helpFrame)
+        m_helpFrame->Destroy();
+}
+
+void wxHtmlHelpController::OnCloseFrame(wxCloseEvent& evt)
+{
+    evt.Skip();
+
+    OnQuit();
+
+    m_helpFrame->SetController((wxHelpControllerBase*) NULL);
+    m_helpFrame = NULL;

 }
 
 void wxHtmlHelpController::SetTitleFormat(const wxString& title)
 }
 
 void wxHtmlHelpController::SetTitleFormat(const wxString& title)


@@ -58,13 +90,19 @@ void wxHtmlHelpController::SetTitleFormat(const wxString& title)
 }
 
 
 }
 
 

+bool wxHtmlHelpController::AddBook(const wxFileName& book_file, bool show_wait_msg)
+{
+    return AddBook(wxFileSystem::FileNameToURL(book_file), show_wait_msg);
+}
+

 bool wxHtmlHelpController::AddBook(const wxString& book, bool show_wait_msg)
 {
     wxBusyCursor cur;
 #if wxUSE_BUSYINFO
     wxBusyInfo* busy = NULL;
     wxString info;
 bool wxHtmlHelpController::AddBook(const wxString& book, bool show_wait_msg)
 {
     wxBusyCursor cur;
 #if wxUSE_BUSYINFO
     wxBusyInfo* busy = NULL;
     wxString info;

-    if (show_wait_msg) {
+    if (show_wait_msg)
+    {

         info.Printf(_("Adding book %s"), book.c_str());
         busy = new wxBusyInfo(info);
     }
         info.Printf(_("Adding book %s"), book.c_str());
         busy = new wxBusyInfo(info);
     }


@@ -73,49 +111,236 @@ bool wxHtmlHelpController::AddBook(const wxString& book, bool show_wait_msg)
 #if wxUSE_BUSYINFO
     if (show_wait_msg)
         delete busy;
 #if wxUSE_BUSYINFO
     if (show_wait_msg)
         delete busy;

-#endif 
+#else
+    wxUnusedVar(show_wait_msg);
+#endif
+    if (m_helpFrame)
+        m_helpFrame->RefreshLists();

     return retval;
 }
 
     return retval;
 }
 

-void wxHtmlHelpController::CreateHelpWindow(bool show_progress)
+
+
+wxHtmlHelpFrame *wxHtmlHelpController::CreateHelpFrame(wxHtmlHelpData *data)
+{
+    return new wxHtmlHelpFrame(data);
+}
+
+
+void wxHtmlHelpController::CreateHelpWindow()

 {
 {

-    if (m_helpFrame) {
+    if (m_helpFrame)
+    {

         m_helpFrame->Raise();
         return ;
     }
 
         m_helpFrame->Raise();
         return ;
     }
 

-    if (m_Config == NULL) 
+    if (m_Config == NULL)

     {
     {

-        m_Config = wxConfigBase::Get(FALSE);
+        m_Config = wxConfigBase::Get(false);

         if (m_Config != NULL)
             m_ConfigRoot = _T("wxWindows/wxHtmlHelpController");
     }
 
         if (m_Config != NULL)
             m_ConfigRoot = _T("wxWindows/wxHtmlHelpController");
     }
 

-    m_helpFrame = new wxHtmlHelpFrame(&m_helpData);
-    m_helpFrame->PushEventHandler(this);
+    m_helpFrame = CreateHelpFrame(&m_helpData);
+    m_helpFrame->SetController(this);

 
     if (m_Config)
         m_helpFrame->UseConfig(m_Config, m_ConfigRoot);
 
     m_helpFrame->Create(NULL, wxID_HTML_HELPFRAME, wxEmptyString, m_FrameStyle);
 
     if (m_Config)
         m_helpFrame->UseConfig(m_Config, m_ConfigRoot);
 
     m_helpFrame->Create(NULL, wxID_HTML_HELPFRAME, wxEmptyString, m_FrameStyle);

-    m_helpFrame->RefreshLists(show_progress);

     m_helpFrame->SetTitleFormat(m_titleFormat);
     m_helpFrame->SetTitleFormat(m_titleFormat);

-    m_helpFrame->Show(TRUE);
+
+    m_helpFrame->Show(true);

 }
 
 void wxHtmlHelpController::ReadCustomization(wxConfigBase* cfg, const wxString& path)
 {
     /* should not be called by the user; call UseConfig, and the controller
      * will do the rest */
 }
 
 void wxHtmlHelpController::ReadCustomization(wxConfigBase* cfg, const wxString& path)
 {
     /* should not be called by the user; call UseConfig, and the controller
      * will do the rest */

-    if (m_helpFrame)
+    if (m_helpFrame && cfg)

         m_helpFrame->ReadCustomization(cfg, path);
 }
 
 void wxHtmlHelpController::WriteCustomization(wxConfigBase* cfg, const wxString& path)
 {
     /* typically called by the controllers OnCloseFrame handler */
         m_helpFrame->ReadCustomization(cfg, path);
 }
 
 void wxHtmlHelpController::WriteCustomization(wxConfigBase* cfg, const wxString& path)
 {
     /* typically called by the controllers OnCloseFrame handler */

-    if (m_helpFrame)
+    if (m_helpFrame && cfg)

         m_helpFrame->WriteCustomization(cfg, path);
 }
 
         m_helpFrame->WriteCustomization(cfg, path);
 }
 

+void wxHtmlHelpController::UseConfig(wxConfigBase *config, const wxString& rootpath)
+{
+    m_Config = config;
+    m_ConfigRoot = rootpath;
+    if (m_helpFrame) m_helpFrame->UseConfig(config, rootpath);
+    ReadCustomization(config, rootpath);
+}
+
+//// Backward compatibility with wxHelpController API
+
+bool wxHtmlHelpController::Initialize(const wxString& file)
+{
+    wxString dir, filename, ext;
+    wxSplitPath(file, & dir, & filename, & ext);
+
+    if (!dir.IsEmpty())
+        dir = dir + wxFILE_SEP_PATH;
+
+    // Try to find a suitable file
+    wxString actualFilename = dir + filename + wxString(wxT(".zip"));
+    if (!wxFileExists(actualFilename))
+    {
+        actualFilename = dir + filename + wxString(wxT(".htb"));
+        if (!wxFileExists(actualFilename))
+        {
+            actualFilename = dir + filename + wxString(wxT(".hhp"));
+            if (!wxFileExists(actualFilename))
+            {
+#if wxUSE_LIBMSPACK
+                actualFilename = dir + filename + wxString(wxT(".chm"));
+                if (!wxFileExists(actualFilename))

 #endif
 #endif

+                    return false;
+            }
+        }
+    }
+    return AddBook(wxFileName(actualFilename));
+}
+
+bool wxHtmlHelpController::LoadFile(const wxString& WXUNUSED(file))
+{
+    // Don't reload the file or we'll have it appear again, presumably.
+    return true;
+}
+
+bool wxHtmlHelpController::DisplaySection(int sectionNo)
+{
+    return Display(sectionNo);
+}
+
+bool wxHtmlHelpController::DisplayTextPopup(const wxString& text, const wxPoint& WXUNUSED(pos))
+{
+#if wxUSE_TIPWINDOW
+    static wxTipWindow* s_tipWindow = NULL;
+
+    if (s_tipWindow)
+    {
+        // Prevent s_tipWindow being nulled in OnIdle,
+        // thereby removing the chance for the window to be closed by ShowHelp
+        s_tipWindow->SetTipWindowPtr(NULL);
+        s_tipWindow->Close();
+    }
+    s_tipWindow = NULL;
+
+    if ( !text.empty() )
+    {
+        s_tipWindow = new wxTipWindow(wxTheApp->GetTopWindow(), text, 100, & s_tipWindow);
+
+        return true;
+    }
+#endif // wxUSE_TIPWINDOW
+
+    return false;
+}
+
+void wxHtmlHelpController::SetFrameParameters(const wxString& title,
+                                   const wxSize& size,
+                                   const wxPoint& pos,
+                                   bool WXUNUSED(newFrameEachTime))
+{
+    SetTitleFormat(title);
+    if (m_helpFrame)
+    {
+        m_helpFrame->SetSize(pos.x, pos.y, size.x, size.y);
+    }
+}
+
+wxFrame* wxHtmlHelpController::GetFrameParameters(wxSize *size,
+                                   wxPoint *pos,
+                                   bool *newFrameEachTime)
+{
+    if (newFrameEachTime)
+        (* newFrameEachTime) = false;
+    if (size && m_helpFrame)
+        (* size) = m_helpFrame->GetSize();
+    if (pos && m_helpFrame)
+        (* pos) = m_helpFrame->GetPosition();
+    return m_helpFrame;
+}
+
+bool wxHtmlHelpController::Quit()
+{
+    DestroyHelpWindow();
+    return true;
+}
+
+// Make the help controller's frame 'modal' if
+// needed
+void wxHtmlHelpController::AddGrabIfNeeded()
+{
+    // So far, wxGTK only
+#ifdef __WXGTK__
+    bool needGrab = false;
+
+    // Check if there are any modal windows present,
+    // in which case we need to add a grab.
+    for ( wxWindowList::compatibility_iterator node = wxTopLevelWindows.GetFirst();
+          node;
+          node = node->GetNext() )
+    {
+        wxWindow *win = node->GetData();
+        wxDialog *dialog = wxDynamicCast(win, wxDialog);
+
+        if (dialog && dialog->IsModal())
+            needGrab = true;
+    }
+
+    if (needGrab && m_helpFrame)
+        m_helpFrame->AddGrab();
+#endif // __WXGTK__
+}
+
+bool wxHtmlHelpController::Display(const wxString& x)
+{
+    CreateHelpWindow();
+    bool success = m_helpFrame->Display(x);
+    AddGrabIfNeeded();
+    return success;
+}
+
+bool wxHtmlHelpController::Display(int id)
+{
+    CreateHelpWindow();
+    bool success = m_helpFrame->Display(id);
+    AddGrabIfNeeded();
+    return success;
+}
+
+bool wxHtmlHelpController::DisplayContents()
+{
+    CreateHelpWindow();
+    bool success = m_helpFrame->DisplayContents();
+    AddGrabIfNeeded();
+    return success;
+}
+
+bool wxHtmlHelpController::DisplayIndex()
+{
+    CreateHelpWindow();
+    bool success = m_helpFrame->DisplayIndex();
+    AddGrabIfNeeded();
+    return success;
+}
+
+bool wxHtmlHelpController::KeywordSearch(const wxString& keyword,
+                                         wxHelpSearchMode mode)
+{
+    CreateHelpWindow();
+    bool success = m_helpFrame->KeywordSearch(keyword, mode);
+    AddGrabIfNeeded();
+    return success;
+}
+
+#endif // wxUSE_WXHTML_HELP
+