Move static variables to zathura instance

Fixes another memory leak.
Signed-off-by: Sebastian Ramacher <sebastian+dev@ramacher.at>

zathura/shortcuts.c

@@ -268,9 +268,6 @@ sc_mouse_scroll(girara_session_t* session, girara_argument_t* argument, girara_e
     return false;
   }
 
-  static int x = 0;
-  static int y = 0;
-
   GtkAdjustment* x_adj = NULL;
   GtkAdjustment* y_adj = NULL;
 
@@ -285,12 +282,12 @@ sc_mouse_scroll(girara_session_t* session, girara_argument_t* argument, girara_e
 
       /* drag */
     case GIRARA_EVENT_BUTTON_PRESS:
-      x = event->x;
-      y = event->y;
+      zathura->shortcut.mouse.x = event->x;
+      zathura->shortcut.mouse.y = event->y;
       break;
     case GIRARA_EVENT_BUTTON_RELEASE:
-      x = 0;
-      y = 0;
+      zathura->shortcut.mouse.x = 0;
+      zathura->shortcut.mouse.y = 0;
       break;
     case GIRARA_EVENT_MOTION_NOTIFY:
       x_adj = gtk_scrolled_window_get_hadjustment(GTK_SCROLLED_WINDOW(session->gtk.view));
@@ -301,9 +298,9 @@ sc_mouse_scroll(girara_session_t* session, girara_argument_t* argument, girara_e
       }
 
       zathura_adjustment_set_value(x_adj,
-          gtk_adjustment_get_value(x_adj) - (event->x - x));
+          gtk_adjustment_get_value(x_adj) - (event->x - zathura->shortcut.mouse.x));
       zathura_adjustment_set_value(y_adj,
-          gtk_adjustment_get_value(y_adj) - (event->y - y));
+          gtk_adjustment_get_value(y_adj) - (event->y - zathura->shortcut.mouse.y));
       break;
 
       /* unhandled events */
@@ -1223,12 +1220,11 @@ sc_toggle_page_mode(girara_session_t* session, girara_argument_t*
   int pages_per_row = 1;
   girara_setting_get(zathura->ui.session, "pages-per-row", &pages_per_row);
 
-  static int tmp = 2;
   int value = 1;
   if (pages_per_row == 1) {
-    value = tmp;
+    value = zathura->shortcut.toggle_page_mode.pages;
   } else {
-    tmp = pages_per_row;
+    zathura->shortcut.toggle_page_mode.pages = pages_per_row;
   }
 
   girara_setting_set(zathura->ui.session, "pages-per-row", &value);
@@ -1277,18 +1273,14 @@ sc_toggle_presentation(girara_session_t* session, girara_argument_t*
     return false;
   }
 
-  static int pages_per_row = 1;
-  static char* first_page_column_list = NULL;
-  static double zoom = 1.0;
-
   const girara_mode_t old_mode = girara_mode_get(session);
   if (old_mode == zathura->modes.presentation) {
     /* reset pages per row */
-    girara_setting_set(session, "pages-per-row", &pages_per_row);
+    girara_setting_set(session, "pages-per-row", &zathura->shortcut.toggle_presentation_mode.pages);
 
     /* reset first page column */
-    if (first_page_column_list != NULL) {
-      girara_setting_set(session, "first-page-column", first_page_column_list);
+    if (zathura->shortcut.toggle_presentation_mode.first_page_column_list != NULL) {
+      girara_setting_set(session, "first-page-column", zathura->shortcut.toggle_presentation_mode.first_page_column_list);
     }
 
     /* show status bar */
@@ -1298,7 +1290,7 @@ sc_toggle_presentation(girara_session_t* session, girara_argument_t*
     gtk_window_unfullscreen(GTK_WINDOW(session->gtk.window));
 
     /* reset scale */
-    zathura_document_set_scale(zathura->document, zoom);
+    zathura_document_set_scale(zathura->document, zathura->shortcut.toggle_presentation_mode.zoom);
     render_all(zathura);
     refresh_view(zathura);
 
@@ -1306,19 +1298,20 @@ sc_toggle_presentation(girara_session_t* session, girara_argument_t*
     girara_mode_set(session, zathura->modes.normal);
   } else if (old_mode == zathura->modes.normal) {
     /* backup pages per row */
-    girara_setting_get(session, "pages-per-row", &pages_per_row);
+    girara_setting_get(session, "pages-per-row", &zathura->shortcut.toggle_presentation_mode.pages);
 
     /* backup first page column */
-    g_free(first_page_column_list);
+    g_free(zathura->shortcut.toggle_presentation_mode.first_page_column_list);
+    zathura->shortcut.toggle_presentation_mode.first_page_column_list = NULL;
     /* this will leak. we need to move the values somewhere else */
-    girara_setting_get(session, "first-page-column", &first_page_column_list);
+    girara_setting_get(session, "first-page-column", &zathura->shortcut.toggle_presentation_mode.first_page_column_list);
 
     /* set single view */
     int int_value = 1;
     girara_setting_set(session, "pages-per-row", &int_value);
 
     /* back up zoom */
-    zoom = zathura_document_get_scale(zathura->document);
+    zathura->shortcut.toggle_presentation_mode.zoom = zathura_document_get_scale(zathura->document);
 
     /* adjust window */
     girara_argument_t argument = { ZATHURA_ADJUST_BESTFIT, NULL };

zathura/zathura.c

@@ -278,6 +278,16 @@ zathura_init(zathura_t* zathura)
   girara_template_set_base(csstemplate, css);
   g_free(css);
 
+  /* Shortcut helpers */
+  zathura->shortcut.mouse.x = 0;
+  zathura->shortcut.mouse.y = 0;
+
+  zathura->shortcut.toggle_page_mode.pages = 2;
+
+  zathura->shortcut.toggle_presentation_mode.pages = 1;
+  zathura->shortcut.toggle_presentation_mode.first_page_column_list = NULL;
+  zathura->shortcut.toggle_presentation_mode.zoom = 1.0;
+
   /* Start D-Bus service */
   bool dbus = true;
   girara_setting_get(zathura->ui.session, "dbus-service", &dbus);
@@ -315,6 +325,9 @@ zathura_free(zathura_t* zathura)
     girara_session_destroy(zathura->ui.session);
   }
 
+  /* shortcut */
+  g_free(zathura->shortcut.toggle_presentation_mode.first_page_column_list);
+
   /* stdin support */
   if (zathura->stdin_support.file != NULL) {
     g_unlink(zathura->stdin_support.file);

zathura/zathura.h

@@ -204,6 +204,24 @@ struct zathura_s
     unsigned int start; /**< Bisection range - start */
     unsigned int end; /**< Bisection range - end */
   } bisect;
+
+  /**
+   * Storage for shortcuts.
+   */
+  struct {
+    struct {
+      int x;
+      int y;
+    } mouse;
+    struct {
+      int pages;
+    } toggle_page_mode;
+    struct {
+      int pages;
+      char* first_page_column_list;
+      double zoom;
+    } toggle_presentation_mode;
+  } shortcut;
 };
 
 /**