[gimp/nielsdg/fix-context-menus: 4/6] app: Popup menu at pointer in GimpEditor

[Niels De Graef <nielsdg src gnome org>]

commit 67fd1f0c5286b7a7e41ec18ece561a95b0d89613
Author: Niels De Graef <nielsdegraef gmail com>
Date:   Wed Dec 8 00:09:08 2021 +0100

    app: Popup menu at pointer in GimpEditor
    
    Rather than trying to fix up our own heuristics using a
    `GtkMenuPositionFunc`, use the API that GTK provides to have popup
    nicely placed near the pointer, which also has the benefit of nicely
    integrating with GDK backends such as Wayland.

 app/widgets/gimpcomponenteditor.c   |  2 +-
 app/widgets/gimpcontainertreeview.c |  2 +-
 app/widgets/gimpeditor.c            | 17 +++++++++++++++++
 app/widgets/gimpeditor.h            |  3 +++
 app/widgets/gimperrorconsole.c      |  2 +-
 app/widgets/gimpgradienteditor.c    | 32 ++++++++++++--------------------
 6 files changed, 35 insertions(+), 23 deletions(-)
---
diff --git a/app/widgets/gimpcomponenteditor.c b/app/widgets/gimpcomponenteditor.c
index d7f401f813..62bc6c45ee 100644
--- a/app/widgets/gimpcomponenteditor.c
+++ b/app/widgets/gimpcomponenteditor.c
@@ -503,7 +503,7 @@ gimp_component_editor_button_press (GtkWidget           *widget,
 
       if (gdk_event_triggers_context_menu ((GdkEvent *) bevent))
         {
-          gimp_editor_popup_menu (GIMP_EDITOR (editor), NULL, NULL);
+          gimp_editor_popup_menu_at_pointer (GIMP_EDITOR (editor), (GdkEvent *) bevent);
         }
       else if (bevent->type == GDK_BUTTON_PRESS && bevent->button == 1 &&
                column != editor->eye_column)
diff --git a/app/widgets/gimpcontainertreeview.c b/app/widgets/gimpcontainertreeview.c
index a87245d591..af1c335a4d 100644
--- a/app/widgets/gimpcontainertreeview.c
+++ b/app/widgets/gimpcontainertreeview.c
@@ -1629,7 +1629,7 @@ gimp_container_tree_view_button (GtkWidget             *widget,
     {
       if (gdk_event_triggers_context_menu ((GdkEvent *) bevent))
         {
-          gimp_editor_popup_menu (GIMP_EDITOR (tree_view), NULL, NULL);
+          gimp_editor_popup_menu_at_pointer (GIMP_EDITOR (tree_view), (GdkEvent *) bevent);
         }
 
       return TRUE;
diff --git a/app/widgets/gimpeditor.c b/app/widgets/gimpeditor.c
index 625571227e..c84cd5718e 100644
--- a/app/widgets/gimpeditor.c
+++ b/app/widgets/gimpeditor.c
@@ -465,6 +465,23 @@ gimp_editor_popup_menu (GimpEditor           *editor,
   return FALSE;
 }
 
+gboolean
+gimp_editor_popup_menu_at_pointer (GimpEditor     *editor,
+                                   const GdkEvent *trigger_event)
+{
+  g_return_val_if_fail (GIMP_IS_EDITOR (editor), FALSE);
+
+  if (editor->priv->ui_manager && editor->priv->ui_path)
+    {
+      gimp_ui_manager_update (editor->priv->ui_manager, editor->priv->popup_data);
+      gimp_ui_manager_ui_popup_at_pointer (editor->priv->ui_manager, editor->priv->ui_path,
+                                           trigger_event, NULL, NULL);
+      return TRUE;
+    }
+
+  return FALSE;
+}
+
 GtkWidget *
 gimp_editor_add_button (GimpEditor  *editor,
                         const gchar *icon_name,
diff --git a/app/widgets/gimpeditor.h b/app/widgets/gimpeditor.h
index c840861a08..0ba60b96eb 100644
--- a/app/widgets/gimpeditor.h
+++ b/app/widgets/gimpeditor.h
@@ -58,6 +58,9 @@ void        gimp_editor_create_menu       (GimpEditor           *editor,
 gboolean    gimp_editor_popup_menu        (GimpEditor           *editor,
                                            GimpMenuPositionFunc  position_func,
                                            gpointer              position_data);
+gboolean    gimp_editor_popup_menu_at_pointer
+                                          (GimpEditor           *editor,
+                                           const GdkEvent       *trigger_event);
 
 GtkWidget * gimp_editor_add_button        (GimpEditor           *editor,
                                            const gchar          *icon_name,
diff --git a/app/widgets/gimperrorconsole.c b/app/widgets/gimperrorconsole.c
index ccb473654b..8c9cf59b6a 100644
--- a/app/widgets/gimperrorconsole.c
+++ b/app/widgets/gimperrorconsole.c
@@ -272,7 +272,7 @@ gimp_error_console_button_press (GtkWidget        *widget,
 {
   if (gdk_event_triggers_context_menu ((GdkEvent *) bevent))
     {
-      return gimp_editor_popup_menu (GIMP_EDITOR (console), NULL, NULL);
+      return gimp_editor_popup_menu_at_pointer (GIMP_EDITOR (console), (GdkEvent *) bevent);
     }
 
   return FALSE;
diff --git a/app/widgets/gimpgradienteditor.c b/app/widgets/gimpgradienteditor.c
index 754a167333..d4eaeeaecb 100644
--- a/app/widgets/gimpgradienteditor.c
+++ b/app/widgets/gimpgradienteditor.c
@@ -190,10 +190,7 @@ static void      control_do_hint                  (GimpGradientEditor *editor,
                                                    gint                x,
                                                    gint                y);
 static void      control_button_press             (GimpGradientEditor *editor,
-                                                   gint                x,
-                                                   gint                y,
-                                                   guint               button,
-                                                   guint               state);
+                                                   GdkEventButton     *bevent);
 static gboolean  control_point_in_handle          (GimpGradientEditor *editor,
                                                    GimpGradient       *gradient,
                                                    gint                x,
@@ -1141,7 +1138,7 @@ view_events (GtkWidget          *widget,
 
         if (gdk_event_triggers_context_menu ((GdkEvent *) bevent))
           {
-            gimp_editor_popup_menu (GIMP_EDITOR (editor), NULL, NULL);
+            gimp_editor_popup_menu_at_pointer (GIMP_EDITOR (editor), event);
           }
         else if (bevent->button == 1)
           {
@@ -1338,9 +1335,7 @@ control_events (GtkWidget          *widget,
           editor->control_last_x     = bevent->x;
           editor->control_click_time = bevent->time;
 
-          control_button_press (editor,
-                                bevent->x, bevent->y,
-                                bevent->button, bevent->state);
+          control_button_press (editor, bevent);
 
           if (editor->control_drag_mode != GRAD_DRAG_NONE)
             {
@@ -1610,10 +1605,7 @@ control_do_hint (GimpGradientEditor *editor,
 
 static void
 control_button_press (GimpGradientEditor *editor,
-                      gint                x,
-                      gint                y,
-                      guint               button,
-                      guint               state)
+                      GdkEventButton     *bevent)
 {
   GimpGradient           *gradient;
   GimpGradientSegment    *seg;
@@ -1623,19 +1615,19 @@ control_button_press (GimpGradientEditor *editor,
 
   gradient = GIMP_GRADIENT (GIMP_DATA_EDITOR (editor)->data);
 
-  if (button == 3)
+  if (gdk_event_triggers_context_menu ((GdkEvent *) bevent))
     {
-      gimp_editor_popup_menu (GIMP_EDITOR (editor), NULL, NULL);
+      gimp_editor_popup_menu_at_pointer (GIMP_EDITOR (editor), (GdkEvent *) bevent);
       return;
     }
 
   /* Find the closest handle */
 
-  xpos = control_calc_g_pos (editor, x);
+  xpos = control_calc_g_pos (editor, bevent->x);
 
   seg_get_closest_handle (gradient, xpos, &seg, &handle);
 
-  in_handle = control_point_in_handle (editor, gradient, x, y, seg, handle);
+  in_handle = control_point_in_handle (editor, gradient, bevent->x, bevent->y, seg, handle);
 
   /* Now see what we have */
 
@@ -1647,7 +1639,7 @@ control_button_press (GimpGradientEditor *editor,
           if (seg != NULL)
             {
               /* Left handle of some segment */
-              if (state & GDK_SHIFT_MASK)
+              if (bevent->state & GDK_SHIFT_MASK)
                 {
                   if (seg->prev != NULL)
                     {
@@ -1677,7 +1669,7 @@ control_button_press (GimpGradientEditor *editor,
               /* Right handle of last segment */
               seg = gimp_gradient_segment_get_last (gradient->segments);
 
-              if (state & GDK_SHIFT_MASK)
+              if (bevent->state & GDK_SHIFT_MASK)
                 {
                   control_extend_selection (editor, seg, xpos);
                   gimp_gradient_editor_update (editor);
@@ -1692,7 +1684,7 @@ control_button_press (GimpGradientEditor *editor,
           break;
 
         case GRAD_DRAG_MIDDLE:
-          if (state & GDK_SHIFT_MASK)
+          if (bevent->state & GDK_SHIFT_MASK)
             {
               control_extend_selection (editor, seg, xpos);
               gimp_gradient_editor_update (editor);
@@ -1719,7 +1711,7 @@ control_button_press (GimpGradientEditor *editor,
       editor->control_last_gx      = xpos;
       editor->control_orig_pos     = xpos;
 
-      if (state & GDK_SHIFT_MASK)
+      if (bevent->state & GDK_SHIFT_MASK)
         editor->control_compress = TRUE;
     }
 }