From 1b113a811d9b29afb89ea5a4e192c187906f3b9b Mon Sep 17 00:00:00 2001
From: =?utf8?q?V=C3=A1clav=20Slav=C3=ADk?= <vslavik@fastmail.fm>
Date: Tue, 10 Oct 2000 22:07:16 +0000
Subject: [PATCH] added wxHtmlWindow::HistoryCanBack/Forward

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@8516 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
---
 docs/latex/wx/htwindow.tex | 15 +++++++++++++++
 include/wx/html/htmlwin.h  |  3 +++
 src/html/htmlwin.cpp       | 11 +++++++++++
 3 files changed, 29 insertions(+)

diff --git a/docs/latex/wx/htwindow.tex b/docs/latex/wx/htwindow.tex
index 622efd4e73..a763720138 100644
--- a/docs/latex/wx/htwindow.tex
+++ b/docs/latex/wx/htwindow.tex
@@ -98,6 +98,21 @@ Returns the related frame.
 Moves back to the previous page. (each page displayed using 
 \helpref{LoadPage}{wxhtmlwindowloadpage} is stored in history list.)
 
+\membersection{wxHtmlWindow::HistoryCanBack}\label{wxhtmlwindowhistorycanback}
+
+\func{bool}{HistoryCanBack}{\void}
+
+Returns true if it is possible to go back in the history (i.e. HistoryBack()
+won't fail).
+
+\membersection{wxHtmlWindow::HistoryCanForward}\label{wxhtmlwindowhistorycanforward}
+
+\func{bool}{HistoryCanForward}{\void}
+
+Returns true if it is possible to go forward in the history (i.e. HistoryBack()
+won't fail).
+
+
 \membersection{wxHtmlWindow::HistoryClear}\label{wxhtmlwindowhistoryclear}
 
 \func{void}{HistoryClear}{\void}
diff --git a/include/wx/html/htmlwin.h b/include/wx/html/htmlwin.h
index 0fd05a4d01..822cc96547 100644
--- a/include/wx/html/htmlwin.h
+++ b/include/wx/html/htmlwin.h
@@ -129,6 +129,9 @@ class WXDLLEXPORT wxHtmlWindow : public wxScrolledWindow
         bool HistoryForward();
                 // Goes to previous/next page (in browsing history)
                 // Returns TRUE if successful, FALSE otherwise
+        bool HistoryCanBack();
+        bool HistoryCanForward();
+        
         void HistoryClear();
                 // Resets history
 
diff --git a/src/html/htmlwin.cpp b/src/html/htmlwin.cpp
index a0fd8ace9f..9316bf7019 100644
--- a/src/html/htmlwin.cpp
+++ b/src/html/htmlwin.cpp
@@ -387,6 +387,11 @@ bool wxHtmlWindow::HistoryBack()
     return TRUE;
 }
 
+bool wxHtmlWindow::HistoryCanBack()
+{
+    if (m_HistoryPos < 1) return FALSE;
+    return TRUE ;
+}
 
 
 bool wxHtmlWindow::HistoryForward()
@@ -413,6 +418,12 @@ bool wxHtmlWindow::HistoryForward()
     return TRUE;
 }
 
+bool wxHtmlWindow::HistoryCanForward()
+{
+    if (m_HistoryPos == -1) return FALSE;
+    if (m_HistoryPos >= (int)m_History.GetCount() - 1)return FALSE;
+    return TRUE ;
+}
 
 
 void wxHtmlWindow::HistoryClear()
-- 
2.45.2