PageUp and PageDown in xtt implemented

xtt/exe/rt_xtt/src/rt_xtt.cpp

@@ -47,6 +47,7 @@ extern "C" {
 #include "rt_trace.h"
 #include "xtt_xnav.h"
 #include "xtt_item.h"
+#include "xtt_url.h"
 #include "co_lng.h"
 #include "co_xhelp.h"
 #include "rt_xnav_msg.h"
@@ -233,6 +234,11 @@ static void xtt_hotkey_ResetDig( Widget w, XKeyEvent* ev, String* av, Cardinal*
     printf("rt_xtt hotkey: SetDig. Can't get %s\n", name);
 }
 
+static void xtt_open_URL_cb( void *ctx, char *url)
+{
+  xnav_open_URL( url);
+}
+
 static void xtt_qcom_events( Xtt *xtt)
 {
   char mp[2000];
@@ -1045,7 +1051,8 @@ Xtt::Xtt( int argc, char *argv[], int *return_sts) :
   xnav->set_dimension_cb = &xtt_set_dimension;
 
   // Create help window
-  CoXHelp *xhelp = new CoXHelp( toplevel, 0, xhelp_eUtility_Xtt, &sts);
+  CoXHelp *xhelp = new CoXHelp( toplevel, this, xhelp_eUtility_Xtt, &sts);
+  xhelp->open_URL_cb = xtt_open_URL_cb;
   CoXHelp::set_default( xhelp);
 
   XtRealizeWidget( toplevel);

xtt/lib/flow/src/flow_browapi.cpp

@@ -679,6 +679,11 @@ int brow_IsVisible( brow_tCtx ctx, brow_tObject object)
   return ctx->is_visible( (FlowArrayElem *)object);
 }
 
+int brow_Page( brow_tCtx ctx, double factor)
+{
+  return ctx->page( factor);
+}
+
 extern "C" int brow_CreateSecondaryCtx( brow_tCtx ctx, brow_tCtx *secondary_ctx,
         int (*init_proc)(brow_tCtx ctx, void *client_data),
 	void  *client_data, 

xtt/lib/flow/src/flow_browapi.h

@@ -199,6 +199,7 @@ int brow_GetNextSibling( brow_tCtx ctx, brow_tObject object,
 int brow_GetPreviousSibling( brow_tCtx ctx, brow_tObject object, 
 		brow_tObject *sibling);
 int brow_IsVisible( brow_tCtx ctx, brow_tObject object);
+int brow_Page( brow_tCtx ctx, double factor);
 int brow_CreateSecondaryCtx( brow_tCtx ctx, brow_tCtx *secondary_ctx,
         int (*init_proc)(brow_tCtx ctx, void *client_data),
 	void  *client_data, 

xtt/lib/flow/src/flow_browctx.cpp

@@ -215,6 +215,36 @@ void BrowCtx::center_object( FlowArrayElem *object, double factor)
   change_scrollbar();
 }
 
+int BrowCtx::page( double factor)
+{
+  double ll_x, ll_y, ur_x, ur_y;
+  int new_offset_y;
+
+  new_offset_y = offset_y + int( factor * window_height);
+
+  if ( factor < 0) {
+    if ( offset_y <= 0)
+      return 0;
+
+    if ( new_offset_y < 0)
+      new_offset_y = 0;
+  }
+  if ( factor > 0) {
+    FlowArrayElem *e;
+    int sts;
+
+    sts = a.get_last( &e);
+    if ( EVEN(sts)) return 0;
+
+    ((FlowNode *)e)->measure( &ll_x, &ll_y, &ur_x, &ur_y);
+    if ( new_offset_y > ur_y * zoom_factor)
+      return 0;
+  }
+  scroll( 0, offset_y - new_offset_y);
+  change_scrollbar();
+  return 1;
+}
+
 void brow_scroll_horizontal( BrowCtx *ctx, int value, int bottom)
 {
   int x_pix;

xtt/lib/flow/src/flow_browctx.h

@@ -39,6 +39,8 @@ class BrowCtx : public FlowCtx {
     		{ return a.brow_get_previous_sibling( element, sibling);};
     int is_visible( FlowArrayElem *element);
     void center_object( FlowArrayElem *object, double factor);
+    int page( double factor);
+
     ~BrowCtx() {};
     double indentation;
     double frame_x_right;

xtt/lib/flow/src/flow_draw.cpp

@@ -575,9 +575,11 @@ int draw_event_handler( FlowCtx *ctx, XEvent event)
               sts = ctx->event_handler( flow_eEvent_Key_Left, 0, 0, 0, 0);
 	    break;
           case XK_Page_Up:
+          case 0xFF41:
             sts = ctx->event_handler( flow_eEvent_Key_PageUp, 0, 0, 0, 0);
 	    break;
           case XK_Page_Down:
+          case 0xFF42:
             sts = ctx->event_handler( flow_eEvent_Key_PageDown, 0, 0, 0, 0);
 	    break;
           case XK_BackSpace:

xtt/lib/xtt/src/xtt_clognav.cpp

@@ -264,6 +264,10 @@ void CLogNavBrow::brow_setup()
 	clognav_brow_cb);
   brow_EnableEvent( ctx, flow_eEvent_Key_Down, flow_eEventType_CallBack, 
 	clognav_brow_cb);
+  brow_EnableEvent( ctx, flow_eEvent_Key_PageUp, flow_eEventType_CallBack, 
+	clognav_brow_cb);
+  brow_EnableEvent( ctx, flow_eEvent_Key_PageDown, flow_eEventType_CallBack, 
+	clognav_brow_cb);
   brow_EnableEvent( ctx, flow_eEvent_Key_Right, flow_eEventType_CallBack, 
 	clognav_brow_cb);
   brow_EnableEvent( ctx, flow_eEvent_Key_Left, flow_eEventType_CallBack, 
@@ -704,6 +708,14 @@ static int clognav_brow_cb( FlowCtx *ctx, flow_tEvent event)
         free( node_list);
       break;
     }
+    case flow_eEvent_Key_PageDown: {
+      brow_Page( clognav->brow->ctx, 0.9);
+      break;
+    }
+    case flow_eEvent_Key_PageUp: {
+      brow_Page( clognav->brow->ctx, -0.9);
+      break;
+    }
     case flow_eEvent_SelectClear:
       brow_ResetSelectInverse( clognav->brow->ctx);
       break;

xtt/lib/xtt/src/xtt_url.cpp

@@ -39,12 +39,13 @@ int xnav_open_URL( pwr_tURL url)
 
     replace_symbol( url, url, config_p);
   }
-  if ( strcmp( browser, "mozilla") == 0) {
+  if ( strcmp( browser, "mozilla") == 0 ||
+       strcmp( browser, "rt_mozilla") == 0) {
     // Try remote display first
     sprintf( cmd, "%s -remote \"openurl(%s,new-window)\"", browser, url);
     sts = system(cmd);
     if ( sts) {
-      // Not started yet
+      // Not started yet 
       sprintf( cmd, "%s %s &", browser, url);
       system( cmd);
     }

xtt/lib/xtt/src/xtt_xnav.cpp

@@ -1662,6 +1662,14 @@ static int xnav_brow_cb( FlowCtx *ctx, flow_tEvent event)
         free( node_list);
       break;
     }
+    case flow_eEvent_Key_PageDown: {
+      brow_Page( xnav->brow->ctx, 0.8);
+      break;
+    }
+    case flow_eEvent_Key_PageUp: {
+      brow_Page( xnav->brow->ctx, -0.8);
+      break;
+    }
     case flow_eEvent_Key_PF1:
     case flow_eEvent_Key_ShiftRight:
     {