Bug 655313 - Use a native rendering for indeterminate vertical progress bar in GTK. r=roc,karlt

widget/src/gtk2/gtk2drawing.c

@@ -2248,28 +2248,38 @@ moz_gtk_progress_chunk_paint(GdkDrawable* drawable, GdkRectangle* rect,
 
     TSOffsetStyleGCs(style, rect->x, rect->y);
 
-    if (widget == MOZ_GTK_PROGRESS_CHUNK_INDETERMINATE) {
+    if (widget == MOZ_GTK_PROGRESS_CHUNK_INDETERMINATE ||
+        widget == MOZ_GTK_PROGRESS_CHUNK_VERTICAL_INDETERMINATE) {
       /**
-       * The bar's width and the bar speed are set depending of the progress
-       * bar size. These could also be constant for all progress bars easily.
+       * The bar's size and the bar speed are set depending of the progress'
+       * size. These could also be constant for all progress bars easily.
        */
+      gboolean vertical = (widget == MOZ_GTK_PROGRESS_CHUNK_VERTICAL_INDETERMINATE);
+
+      /* The size of the dimension we are going to use for the animation. */
+      const gint progressSize = vertical ? rect->height : rect->width;
 
       /* The bar is using a fifth of the element size, based on GtkProgressBar
        * activity-blocks property. */
-      const gint barWidth = MAX(1, rect->width / 5);
+      const gint barSize = MAX(1, progressSize / 5);
 
       /* Represents the travel that has to be done for a complete cycle. */
-      const gint travel = 2 * (rect->width - barWidth);
+      const gint travel = 2 * (progressSize - barSize);
 
       /* period equals to travel / pixelsPerMillisecond
-       * where pixelsPerMillisecond equals rect->width / 1000.0.
+       * where pixelsPerMillisecond equals progressSize / 1000.0.
        * This is equivalent to 1600. */
-      const guint period = 1600;
+      static const guint period = 1600;
       const gint t = PR_IntervalToMilliseconds(PR_IntervalNow()) % period;
       const gint dx = travel * t / period;
 
+      if (vertical) {
+        rect->y += (dx < travel / 2) ? dx : travel - dx;
+        rect->height = barSize;
+      } else {
         rect->x += (dx < travel / 2) ? dx : travel - dx;
-      rect->width = barWidth;
+        rect->width = barSize;
+      }
     }
 
     gtk_paint_box(style, drawable, GTK_STATE_PRELIGHT, GTK_SHADOW_OUT,
@@ -2986,6 +2996,7 @@ moz_gtk_get_widget_border(GtkThemeWidgetType widget, gint* left, gint* top,
     case MOZ_GTK_GRIPPER:
     case MOZ_GTK_PROGRESS_CHUNK:
     case MOZ_GTK_PROGRESS_CHUNK_INDETERMINATE:
+    case MOZ_GTK_PROGRESS_CHUNK_VERTICAL_INDETERMINATE:
     case MOZ_GTK_EXPANDER:
     case MOZ_GTK_TREEVIEW_EXPANDER:
     case MOZ_GTK_TOOLBAR_SEPARATOR:
@@ -3333,6 +3344,7 @@ moz_gtk_widget_paint(GtkThemeWidgetType widget, GdkDrawable* drawable,
         break;
     case MOZ_GTK_PROGRESS_CHUNK:
     case MOZ_GTK_PROGRESS_CHUNK_INDETERMINATE:
+    case MOZ_GTK_PROGRESS_CHUNK_VERTICAL_INDETERMINATE:
         return moz_gtk_progress_chunk_paint(drawable, rect, cliprect,
                                             direction, widget);
         break;

widget/src/gtk2/gtkdrawing.h

@@ -180,6 +180,8 @@ typedef enum {
   MOZ_GTK_PROGRESS_CHUNK,
   /* Paints a progress chunk of an indeterminated GtkProgressBar. */
   MOZ_GTK_PROGRESS_CHUNK_INDETERMINATE,
+  /* Paints a progress chunk of a vertical indeterminated GtkProgressBar. */
+  MOZ_GTK_PROGRESS_CHUNK_VERTICAL_INDETERMINATE,
   /* Paints a tab of a GtkNotebook. flags is a GtkTabFlags, defined above. */
   MOZ_GTK_TAB,
   /* Paints the background and border of a GtkNotebook. */

widget/src/gtk2/nsNativeThemeGTK.cpp

@@ -571,7 +571,9 @@ nsNativeThemeGTK::GetGtkWidgetAndState(PRUint8 aWidgetType, nsIFrame* aFrame,
       nsEventStates eventStates = GetContentState(stateFrame, aWidgetType);
 
       aGtkWidgetType = IsIndeterminateProgress(stateFrame, eventStates)
-                         ? MOZ_GTK_PROGRESS_CHUNK_INDETERMINATE
+                         ? (stateFrame->GetStyleDisplay()->mOrient == NS_STYLE_ORIENT_VERTICAL)
+                           ? MOZ_GTK_PROGRESS_CHUNK_VERTICAL_INDETERMINATE
+                           : MOZ_GTK_PROGRESS_CHUNK_INDETERMINATE
                          : MOZ_GTK_PROGRESS_CHUNK;
     }
     break;
@@ -881,7 +883,8 @@ nsNativeThemeGTK::DrawWidgetBackground(nsRenderingContext* aContext,
   }
 
   // Indeterminate progress bar are animated.
-  if (gtkWidgetType == MOZ_GTK_PROGRESS_CHUNK_INDETERMINATE) {
+  if (gtkWidgetType == MOZ_GTK_PROGRESS_CHUNK_INDETERMINATE ||
+      gtkWidgetType == MOZ_GTK_PROGRESS_CHUNK_VERTICAL_INDETERMINATE) {
     if (!QueueAnimatedContentForRefresh(aFrame->GetContent(), 30)) {
       NS_WARNING("unable to animate widget!");
     }