helm/gtkmathview-bonobo/src/handlers.c

   1 #include "handlers.h"
   2
   3 void
   4 set_frame(BonoboControl *control,gpointer data)
   5 {
   6     /*Bonobo_UIContainer remote_ui_container;
   7     BonoboUIComponent *ui_component;
   8     GtkMathViewControlData *control_data;
   9     GtkWidget *scrolled_window;
  10     Bonobo_ControlFrame frame;
  11     control_data = (GtkMathViewControlData *) data;*/
  12 }
  13
  14 void
  15 click_cb(GtkMathView* math_view, GdomeElement* elem, gint state, GtkMathViewControlData* control_data)
  16 {
  17   GdomeException exc;
  18   GdomeDOMString* name;
  19   GdomeDOMString* ns_uri;
  20   //GdomeElement* p;
  21
  22   g_return_if_fail(math_view != NULL);
  23
  24   printf("*** click signal: %p %x %p\n", elem, state, control_data);
  25
  26   if (elem != NULL)
  27   {
  28       GdomeElement* action;
  29       GdomeDOMString* href = find_hyperlink(elem);
  30       if (href != NULL)
  31       {
  32           /*    printf("hyperlink %s\n", href->str); */
  33           gtk_math_view_load_uri(math_view,href->str);
  34           gdome_str_unref(href);
  35       }
  36       else
  37       {
  38           action = find_self_or_ancestor(elem, MATHML_NS_URI, "maction");
  39           /*       printf("action? %p\n", action); */
  40           if (action != NULL)
  41           {
  42                gtk_math_view_freeze(math_view);
  43                action_toggle(action);
  44                gtk_math_view_thaw(math_view);
  45                gdome_el_unref(action, &exc);
  46                g_assert(exc == 0);
  47                return;
  48           }
  49       }
  50       if (control_data->root_selected != NULL)
  51       {
  52         gtk_math_view_freeze(math_view);
  53         gtk_math_view_unselect(math_view, control_data->root_selected);
  54         gtk_math_view_thaw(math_view);
  55         gdome_el_unref(control_data->root_selected, &exc);
  56         g_assert(exc == 0);
  57         control_data->root_selected = NULL;
  58       }
  59   }
  60 }
  61
  62 void
  63 select_begin_cb(GtkMathView* math_view, GdomeElement* elem, gint state,GtkMathViewControlData* control_data)
  64 {
  65   g_return_if_fail(math_view != NULL);
  66   g_return_if_fail(GTK_IS_MATH_VIEW(math_view));
  67   printf("*** select_begin signal: %p %x\n", elem, state);
  68   if (elem != NULL)
  69     {
  70       GdomeException exc = 0;
  71       gtk_math_view_freeze(math_view);
  72       if (control_data->root_selected != NULL)
  73       {
  74         gtk_math_view_unselect(math_view,control_data->root_selected);
  75         gdome_el_unref(control_data->root_selected, &exc);
  76         g_assert(exc == 0);
  77         control_data->root_selected = NULL;
  78       }
  79
  80       if (control_data->semantic_selection)
  81       {
  82         GdomeElement* new_elem = find_xref_element(elem);
  83         if (new_elem != NULL)
  84         {
  85           gdome_el_ref(new_elem, &exc);
  86           g_assert(exc == 0);
  87         }
  88         control_data->first_selected = control_data->root_selected = new_elem;
  89       }
  90       else
  91       {
  92         gdome_el_ref(elem, &exc);
  93         g_assert(exc == 0);
  94         gdome_el_ref(elem, &exc);
  95         g_assert(exc == 0);
  96         control_data->first_selected = control_data->root_selected = elem;
  97       }
  98
  99       if (control_data->root_selected != NULL)
 100           gtk_math_view_select(math_view, control_data->root_selected);
 101
 102       gtk_math_view_thaw(math_view);
 103     }
 104 }
 105
 106 void
 107 select_over_cb(GtkMathView* math_view, GdomeElement* elem, gint state,GtkMathViewControlData* control_data)
 108 {
 109   g_return_if_fail(math_view != NULL);
 110   g_return_if_fail(GTK_IS_MATH_VIEW(math_view));
 111
 112   printf("*** select_over signal: %p %x\n", elem, state);
 113
 114   if (control_data->first_selected != NULL && elem != NULL)
 115     {
 116       GdomeException exc = 0;
 117
 118       gtk_math_view_freeze(math_view);
 119
 120       if (control_data->root_selected != NULL)
 121       {
 122           gtk_math_view_unselect(math_view, control_data->root_selected);
 123           gdome_el_unref(control_data->root_selected, &exc);
 124           g_assert(exc == 0);
 125           control_data->root_selected = NULL;
 126       }
 127
 128       if (control_data->semantic_selection)
 129       {
 130         GdomeElement* new_root = find_common_ancestor(control_data->first_selected, elem);
 131         if (new_root != NULL)
 132         {
 133           control_data->root_selected = find_xref_element(new_root);
 134           gdome_el_unref(new_root, &exc);
 135           g_assert(exc == 0);
 136         }
 137       else
 138         control_data->root_selected = NULL;
 139       }
 140       else
 141         control_data->root_selected = find_common_ancestor(control_data->first_selected, elem);
 142
 143       if (control_data->root_selected != NULL)
 144         gtk_math_view_select(math_view, control_data->root_selected);
 145
 146       gtk_math_view_thaw(math_view);
 147     }
 148 }
 149
 150 void
 151 select_end_cb(GtkMathView* math_view, GdomeElement* elem, gint state,GtkMathViewControlData* control_data)
 152 {
 153   g_return_if_fail(math_view != NULL);
 154   g_return_if_fail(GTK_IS_MATH_VIEW(math_view));
 155
 156   printf("*** select_end signal: %p %x\n", elem, state);
 157
 158   if (control_data->first_selected != NULL)
 159   {
 160       GdomeException exc = 0;
 161       gdome_el_unref(control_data->first_selected, &exc);
 162       g_assert(exc == 0);
 163       control_data->first_selected = NULL;
 164   }
 165 }
 166
 167 void
 168 select_abort_cb(GtkMathView* math_view,GtkMathViewControlData* control_data)
 169 {
 170   GdomeException exc = 0;
 171
 172   g_return_if_fail(math_view != NULL);
 173   g_return_if_fail(GTK_IS_MATH_VIEW(math_view));
 174
 175   printf("*** select_abort signal\n");
 176
 177   if (control_data->first_selected != NULL)
 178   {
 179       gdome_el_unref(control_data->first_selected, &exc);
 180       g_assert(exc == 0);
 181       control_data->first_selected = NULL;
 182   }
 183   if (control_data->root_selected != NULL)
 184     {
 185       gtk_math_view_freeze(math_view);
 186       gtk_math_view_unselect(math_view, control_data->root_selected);
 187       gtk_math_view_thaw(math_view);
 188       gdome_el_unref(control_data->root_selected, &exc);
 189       g_assert(exc == 0);
 190       control_data->root_selected = NULL;
 191     }
 192 }
 193