[metacity] ui: fix tooltip style

[Alberts Muktupāvels <muktupavels src gnome org>]

commit cb9faebb4540b08bb45045717a7e55361fe892ea
Author: Alberts Muktupāvels <alberts muktupavels gmail com>
Date:   Sun Oct 16 14:21:43 2016 +0300

    ui: fix tooltip style
    
    https://bugzilla.gnome.org/show_bug.cgi?id=772984

 src/Makefile.am       |    2 +
 src/ui/fixedtip.c     |   58 +---------------
 src/ui/meta-tooltip.c |  182 +++++++++++++++++++++++++++++++++++++++++++++++++
 src/ui/meta-tooltip.h |   38 ++++++++++
 src/ui/resizepopup.c  |   57 +---------------
 5 files changed, 228 insertions(+), 109 deletions(-)
---
diff --git a/src/Makefile.am b/src/Makefile.am
index d614f87..2a26bfc 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -98,6 +98,8 @@ metacity_SOURCES=                             \
        ui/menu.h                               \
        ui/metaaccellabel.c                     \
        ui/metaaccellabel.h                     \
+       ui/meta-tooltip.c \
+       ui/meta-tooltip.h \
        ui/resizepopup.c                        \
        include/resizepopup.h                   \
        ui/tabpopup.c                           \
diff --git a/src/ui/fixedtip.c b/src/ui/fixedtip.c
index a1bb410..0a0418d 100644
--- a/src/ui/fixedtip.c
+++ b/src/ui/fixedtip.c
@@ -21,6 +21,7 @@
 
 #include <config.h>
 #include "fixedtip.h"
+#include "meta-tooltip.h"
 #include "ui.h"
 
 /**
@@ -29,32 +30,6 @@
  */
 static GtkWidget *tip = NULL;
 
-/**
- * The actual text that gets displayed.
- */
-static GtkWidget *label = NULL;
-
-static gboolean
-draw_handler (GtkWidget *widget,
-              cairo_t   *cr)
-{
-  GtkStyleContext *context;
-  gint width;
-  gint height;
-
-  if (widget == NULL)
-    return FALSE;
-
-  context = gtk_widget_get_style_context (widget);
-  width = gtk_widget_get_allocated_width (widget);
-  height = gtk_widget_get_allocated_height (widget);
-
-  gtk_render_background (context, cr, 0, 0, width, height);
-  gtk_render_frame (context, cr, 0, 0, width, height);
-
-  return FALSE;
-}
-
 void
 meta_fixed_tip_show (int root_x, int root_y,
                      const char *markup_text)
@@ -70,34 +45,7 @@ meta_fixed_tip_show (int root_x, int root_y,
 
   if (tip == NULL)
     {
-      GdkVisual *visual;
-
-      tip = gtk_window_new (GTK_WINDOW_POPUP);
-
-      gtk_window_set_type_hint (GTK_WINDOW(tip), GDK_WINDOW_TYPE_HINT_TOOLTIP);
-      gtk_style_context_add_class (gtk_widget_get_style_context (tip),
-                                   GTK_STYLE_CLASS_TOOLTIP);
-
-      visual = gdk_screen_get_rgba_visual (screen);
-
-      gtk_window_set_screen (GTK_WINDOW (tip), screen);
-
-      if (visual != NULL)
-        gtk_widget_set_visual (tip, visual);
-
-      gtk_widget_set_app_paintable (tip, TRUE);
-      gtk_window_set_resizable (GTK_WINDOW (tip), FALSE);
-
-      g_signal_connect (tip, "draw", G_CALLBACK (draw_handler), NULL);
-
-      label = gtk_label_new (NULL);
-      gtk_label_set_line_wrap (GTK_LABEL (label), TRUE);
-      gtk_widget_set_halign (label, GTK_ALIGN_CENTER);
-      gtk_widget_set_valign (label, GTK_ALIGN_CENTER);
-      gtk_widget_show (label);
-
-      gtk_container_set_border_width (GTK_CONTAINER (tip), 4);
-      gtk_container_add (GTK_CONTAINER (tip), label);
+      tip = meta_tooltip_new ();
 
       g_signal_connect (tip, "destroy",
                        G_CALLBACK (gtk_widget_destroyed), &tip);
@@ -107,7 +55,7 @@ meta_fixed_tip_show (int root_x, int root_y,
   gdk_screen_get_monitor_geometry (screen, mon_num, &monitor);
   screen_right_edge = monitor.x + monitor.width;
 
-  gtk_label_set_markup (GTK_LABEL (label), markup_text);
+  meta_tooltip_set_label_markup (META_TOOLTIP (tip), markup_text);
 
   gtk_window_get_size (GTK_WINDOW (tip), &w, &h);
 
diff --git a/src/ui/meta-tooltip.c b/src/ui/meta-tooltip.c
new file mode 100644
index 0000000..3126ba9
--- /dev/null
+++ b/src/ui/meta-tooltip.c
@@ -0,0 +1,182 @@
+/*
+ * Copyright (C) 2016 Alberts Muktupāvels
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "config.h"
+
+#include "meta-tooltip.h"
+#include "prefs.h"
+
+struct _MetaTooltip
+{
+  GtkWindow  parent;
+
+  GtkWidget *box;
+  GtkWidget *label;
+
+  gboolean   composited;
+};
+
+G_DEFINE_TYPE (MetaTooltip, meta_tooltip, GTK_TYPE_WINDOW)
+
+static void
+update_style_class (MetaTooltip *tooltip)
+{
+  GtkStyleContext *context;
+
+  context = gtk_widget_get_style_context (GTK_WIDGET (tooltip));
+
+  if (tooltip->composited)
+    {
+      gtk_style_context_remove_class (context, "solid-csd");
+      gtk_style_context_add_class (context, GTK_STYLE_CLASS_CSD);
+    }
+  else
+    {
+      gtk_style_context_remove_class (context, GTK_STYLE_CLASS_CSD);
+      gtk_style_context_add_class (context, "solid-csd");
+    }
+}
+
+static void
+prefs_changed_cb (MetaPreference  pref,
+                  void           *data)
+{
+  MetaTooltip *tooltip;
+  gboolean composited;
+
+  if (pref != META_PREF_COMPOSITING_MANAGER)
+    return;
+
+  tooltip = META_TOOLTIP (data);
+  composited = meta_prefs_get_compositing_manager ();
+
+  if (tooltip->composited == composited)
+    return;
+
+  tooltip->composited = composited;
+  update_style_class (tooltip);
+}
+
+static void
+meta_tooltip_finalize (GObject *object)
+{
+  MetaTooltip *tooltip;
+
+  tooltip = META_TOOLTIP (object);
+
+  meta_prefs_remove_listener (prefs_changed_cb, tooltip);
+
+  G_OBJECT_CLASS (meta_tooltip_parent_class)->finalize (object);
+}
+
+static void
+meta_tooltip_realize (GtkWidget *widget)
+{
+  GdkScreen *screen;
+  GdkVisual *visual;
+
+  screen = gtk_widget_get_screen (widget);
+  visual = gdk_screen_get_rgba_visual (screen);
+
+  if (visual == NULL)
+    visual = gdk_screen_get_system_visual (screen);
+
+  gtk_widget_set_visual (widget, visual);
+
+  GTK_WIDGET_CLASS (meta_tooltip_parent_class)->realize (widget);
+}
+
+static void
+meta_tooltip_class_init (MetaTooltipClass *tooltip_class)
+{
+  GObjectClass *object_class;
+  GtkWidgetClass *widget_class;
+
+  object_class = G_OBJECT_CLASS (tooltip_class);
+  widget_class = GTK_WIDGET_CLASS (tooltip_class);
+
+  object_class->finalize = meta_tooltip_finalize;
+
+  widget_class->realize = meta_tooltip_realize;
+
+  gtk_widget_class_set_accessible_role (widget_class, ATK_ROLE_TOOL_TIP);
+  gtk_widget_class_set_css_name (widget_class, "tooltip");
+}
+
+static void
+meta_tooltip_init (MetaTooltip *tooltip)
+{
+  tooltip->box = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 6);
+  gtk_container_add (GTK_CONTAINER (tooltip), tooltip->box);
+  gtk_widget_show (tooltip->box);
+
+  gtk_widget_set_margin_start (tooltip->box, 6);
+  gtk_widget_set_margin_end (tooltip->box, 6);
+  gtk_widget_set_margin_top (tooltip->box, 6);
+  gtk_widget_set_margin_bottom (tooltip->box, 6);
+
+  tooltip->label = gtk_label_new (NULL);
+  gtk_box_pack_start (GTK_BOX (tooltip->box), tooltip->label, FALSE, FALSE, 0);
+
+  gtk_label_set_line_wrap (GTK_LABEL (tooltip->label), TRUE);
+  gtk_label_set_max_width_chars (GTK_LABEL (tooltip->label), 70);
+
+  tooltip->composited = meta_prefs_get_compositing_manager ();
+  update_style_class (tooltip);
+
+  meta_prefs_add_listener (prefs_changed_cb, tooltip);
+}
+
+GtkWidget *
+meta_tooltip_new (void)
+{
+  return g_object_new (META_TYPE_TOOLTIP,
+                       "type", GTK_WINDOW_POPUP,
+                       "type-hint", GDK_WINDOW_TYPE_HINT_TOOLTIP,
+                       "resizable", FALSE,
+                       NULL);
+}
+
+void
+meta_tooltip_set_label_markup (MetaTooltip *tooltip,
+                               const gchar *markup)
+{
+  if (markup != NULL)
+    {
+      gtk_label_set_markup (GTK_LABEL (tooltip->label), markup);
+      gtk_widget_show (tooltip->label);
+    }
+  else
+    {
+      gtk_widget_hide (tooltip->label);
+    }
+}
+
+void
+meta_tooltip_set_label_text (MetaTooltip *tooltip,
+                             const gchar *text)
+{
+  if (text != NULL)
+    {
+      gtk_label_set_text (GTK_LABEL (tooltip->label), text);
+      gtk_widget_show (tooltip->label);
+    }
+  else
+    {
+      gtk_widget_hide (tooltip->label);
+    }
+}
diff --git a/src/ui/meta-tooltip.h b/src/ui/meta-tooltip.h
new file mode 100644
index 0000000..0ae746b
--- /dev/null
+++ b/src/ui/meta-tooltip.h
@@ -0,0 +1,38 @@
+/*
+ * Copyright (C) 2016 Alberts Muktupāvels
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef META_TOOLTIP_H
+#define META_TOOLTIP_H
+
+#include <gtk/gtk.h>
+
+G_BEGIN_DECLS
+
+#define META_TYPE_TOOLTIP meta_tooltip_get_type ()
+G_DECLARE_FINAL_TYPE (MetaTooltip, meta_tooltip, META, TOOLTIP, GtkWindow)
+
+GtkWidget *meta_tooltip_new              (void);
+
+void       meta_tooltip_set_label_markup (MetaTooltip *tooltip,
+                                          const gchar *markup);
+
+void       meta_tooltip_set_label_text   (MetaTooltip *tooltip,
+                                          const gchar *text);
+
+G_END_DECLS
+
+#endif
diff --git a/src/ui/resizepopup.c b/src/ui/resizepopup.c
index b0f5616..d6f02f5 100644
--- a/src/ui/resizepopup.c
+++ b/src/ui/resizepopup.c
@@ -21,6 +21,7 @@
 
 #include <config.h>
 #include "resizepopup.h"
+#include "meta-tooltip.h"
 #include "util.h"
 #include <gtk/gtk.h>
 #include <gdk/gdkx.h>
@@ -28,7 +29,6 @@
 struct _MetaResizePopup
 {
   GtkWidget *size_window;
-  GtkWidget *size_label;
   Display *display;
 
   int vertical_size;
@@ -62,63 +62,13 @@ meta_ui_resize_popup_free (MetaResizePopup *popup)
   g_free (popup);
 }
 
-static gboolean
-size_window_draw (GtkWidget       *widget,
-                  cairo_t         *cr,
-                  MetaResizePopup *popup)
-{
-  GtkStyleContext *context;
-  gint width, height;
-
-  context = gtk_widget_get_style_context (widget);
-  width = gtk_widget_get_allocated_width (widget);
-  height = gtk_widget_get_allocated_height (widget);
-
-  gtk_render_background (context, cr, 0, 0, width, height);
-  gtk_render_frame (context, cr, 0, 0, width, height);
-
-  return FALSE;
-}
-
 static void
 ensure_size_window (MetaResizePopup *popup)
 {
-  GdkVisual *visual;
-  GdkScreen *screen;
-
   if (popup->size_window)
     return;
 
-  popup->size_window = gtk_window_new (GTK_WINDOW_POPUP);
-
-  screen = gdk_screen_get_default ();
-  visual = gdk_screen_get_rgba_visual (screen);
-
-  gtk_window_set_screen (GTK_WINDOW (popup->size_window), screen);
-  if (visual != NULL)
-    gtk_widget_set_visual (popup->size_window, visual);
-
-  gtk_window_set_type_hint (GTK_WINDOW (popup->size_window),
-                            GDK_WINDOW_TYPE_HINT_TOOLTIP);
-  gtk_window_set_resizable (GTK_WINDOW (popup->size_window), FALSE);
-
-  gtk_widget_set_app_paintable (popup->size_window, TRUE);
-  gtk_style_context_add_class (gtk_widget_get_style_context (popup->size_window),
-                               GTK_STYLE_CLASS_TOOLTIP);
-  g_signal_connect (popup->size_window, "draw",
-                    G_CALLBACK (size_window_draw), popup);
-
-  popup->size_label = gtk_label_new ("");
-
-  gtk_widget_set_margin_start (popup->size_label, 6);
-  gtk_widget_set_margin_end (popup->size_label, 6);
-  gtk_widget_set_margin_top (popup->size_label, 6);
-  gtk_widget_set_margin_bottom (popup->size_label, 6);
-
-  gtk_container_add (GTK_CONTAINER (popup->size_window),
-                     popup->size_label);
-
-  gtk_widget_show (popup->size_label);
+  popup->size_window = meta_tooltip_new ();
 }
 
 static void
@@ -137,8 +87,7 @@ update_size_window (MetaResizePopup *popup)
                          popup->horizontal_size,
                          popup->vertical_size);
 
-  gtk_label_set_text (GTK_LABEL (popup->size_label), str);
-
+  meta_tooltip_set_label_text (META_TOOLTIP (popup->size_window), str);
   g_free (str);
 
   gtk_window_get_size (GTK_WINDOW (popup->size_window), &width, &height);