select and click signal added

[helm.git] / helm / gtkmathview-bonobo / src / handlers.c

diff --git a/helm/gtkmathview-bonobo/src/handlers.c b/helm/gtkmathview-bonobo/src/handlers.c
new file mode 100644 (file)
index 0000000..c3bda47
--- /dev/null
+++ b/helm/gtkmathview-bonobo/src/handlers.c
@@ -0,0 +1,193 @@
+#include "handlers.h"
+
+void
+set_frame(BonoboControl *control,gpointer data)
+{     
+    /*Bonobo_UIContainer remote_ui_container;
+    BonoboUIComponent *ui_component;
+    GtkMathViewControlData *control_data;
+    GtkWidget *scrolled_window;
+    Bonobo_ControlFrame frame;
+    control_data = (GtkMathViewControlData *) data;*/
+}
+
+void
+click_cb(GtkMathView* math_view, GdomeElement* elem, gint state, GtkMathViewControlData* control_data)
+{
+  GdomeException exc;
+  GdomeDOMString* name;
+  GdomeDOMString* ns_uri;
+  //GdomeElement* p;
+  
+  g_return_if_fail(math_view != NULL);
+  
+  printf("*** click signal: %p %x %p\n", elem, state, control_data);
+  
+  if (elem != NULL)
+  {
+      GdomeElement* action;
+      GdomeDOMString* href = find_hyperlink(elem);
+      if (href != NULL)
+      {
+          /*    printf("hyperlink %s\n", href->str); */
+          gtk_math_view_load_uri(math_view,href->str);
+          gdome_str_unref(href);
+      }
+      else
+      {
+          action = find_self_or_ancestor(elem, MATHML_NS_URI, "maction");
+          /*       printf("action? %p\n", action); */
+          if (action != NULL)
+          {
+               gtk_math_view_freeze(math_view);
+               action_toggle(action);
+               gtk_math_view_thaw(math_view);
+               gdome_el_unref(action, &exc);
+               g_assert(exc == 0);
+               return;
+          }
+      }
+      if (control_data->root_selected != NULL)
+      {
+        gtk_math_view_freeze(math_view);
+        gtk_math_view_unselect(math_view, control_data->root_selected);
+        gtk_math_view_thaw(math_view);
+        gdome_el_unref(control_data->root_selected, &exc);
+        g_assert(exc == 0);
+        control_data->root_selected = NULL;
+      }
+  }
+}
+
+void
+select_begin_cb(GtkMathView* math_view, GdomeElement* elem, gint state,GtkMathViewControlData* control_data)
+{
+  g_return_if_fail(math_view != NULL);
+  g_return_if_fail(GTK_IS_MATH_VIEW(math_view));
+  printf("*** select_begin signal: %p %x\n", elem, state);
+  if (elem != NULL)
+    {
+      GdomeException exc = 0;
+      gtk_math_view_freeze(math_view);
+      if (control_data->root_selected != NULL)
+      {
+        gtk_math_view_unselect(math_view,control_data->root_selected);
+        gdome_el_unref(control_data->root_selected, &exc);
+        g_assert(exc == 0);
+        control_data->root_selected = NULL;
+      }
+      
+      if (control_data->semantic_selection)
+      {
+        GdomeElement* new_elem = find_xref_element(elem);
+        if (new_elem != NULL)
+        {
+          gdome_el_ref(new_elem, &exc);
+          g_assert(exc == 0);
+        }
+        control_data->first_selected = control_data->root_selected = new_elem;
+      }
+      else
+      {
+        gdome_el_ref(elem, &exc);
+        g_assert(exc == 0);
+        gdome_el_ref(elem, &exc);
+        g_assert(exc == 0);
+        control_data->first_selected = control_data->root_selected = elem;
+      }
+      
+      if (control_data->root_selected != NULL)
+          gtk_math_view_select(math_view, control_data->root_selected);
+      
+      gtk_math_view_thaw(math_view);
+    }
+}
+
+void
+select_over_cb(GtkMathView* math_view, GdomeElement* elem, gint state,GtkMathViewControlData* control_data)
+{
+  g_return_if_fail(math_view != NULL);
+  g_return_if_fail(GTK_IS_MATH_VIEW(math_view));
+
+  printf("*** select_over signal: %p %x\n", elem, state);
+
+  if (control_data->first_selected != NULL && elem != NULL)
+    {
+      GdomeException exc = 0;
+
+      gtk_math_view_freeze(math_view);
+
+      if (control_data->root_selected != NULL)
+      {
+          gtk_math_view_unselect(math_view, control_data->root_selected);
+          gdome_el_unref(control_data->root_selected, &exc);
+          g_assert(exc == 0);
+          control_data->root_selected = NULL;
+      }
+
+      if (control_data->semantic_selection)
+      {
+        GdomeElement* new_root = find_common_ancestor(control_data->first_selected, elem);
+        if (new_root != NULL)
+        {
+          control_data->root_selected = find_xref_element(new_root);
+          gdome_el_unref(new_root, &exc);
+          g_assert(exc == 0);
+        }
+      else
+        control_data->root_selected = NULL;
+      }
+      else
+        control_data->root_selected = find_common_ancestor(control_data->first_selected, elem);
+
+      if (control_data->root_selected != NULL)
+        gtk_math_view_select(math_view, control_data->root_selected);
+
+      gtk_math_view_thaw(math_view);
+    }
+}
+
+void
+select_end_cb(GtkMathView* math_view, GdomeElement* elem, gint state,GtkMathViewControlData* control_data)
+{
+  g_return_if_fail(math_view != NULL);
+  g_return_if_fail(GTK_IS_MATH_VIEW(math_view));
+  
+  printf("*** select_end signal: %p %x\n", elem, state);
+  
+  if (control_data->first_selected != NULL)
+  {
+      GdomeException exc = 0;
+      gdome_el_unref(control_data->first_selected, &exc);
+      g_assert(exc == 0);
+      control_data->first_selected = NULL;
+  }
+}
+
+void
+select_abort_cb(GtkMathView* math_view,GtkMathViewControlData* control_data)
+{
+  GdomeException exc = 0;
+  
+  g_return_if_fail(math_view != NULL);
+  g_return_if_fail(GTK_IS_MATH_VIEW(math_view));
+  
+  printf("*** select_abort signal\n");
+  
+  if (control_data->first_selected != NULL)
+  {
+      gdome_el_unref(control_data->first_selected, &exc);
+      g_assert(exc == 0);
+      control_data->first_selected = NULL;
+  }
+  if (control_data->root_selected != NULL)
+    {
+      gtk_math_view_freeze(math_view);
+      gtk_math_view_unselect(math_view, control_data->root_selected);
+      gtk_math_view_thaw(math_view);
+      gdome_el_unref(control_data->root_selected, &exc);
+      g_assert(exc == 0);
+      control_data->root_selected = NULL;
+    }
+}
+