Implements EosTopBar and integrates it in EosWindow

[endlessm/eos-sdk#7]

1 files changed, 161 insertions, 0 deletions

diff --git a/endless/eostopbar.c b/endless/eostopbar.c
new file mode 100644
index 0000000..74205d9
--- /dev/null
+++ b/endless/eostopbar.c
@@ -0,0 +1,161 @@
+/* Copyright 2013 Endless Mobile, Inc. */
+
+#include "config.h"
+#include "eostopbar-private.h"
+
+#include <glib-object.h>
+#include <gtk/gtk.h>
+
+#define _EOS_STYLE_CLASS_TOP_BAR "top-bar"
+#define _EOS_TOP_BAR_HEIGHT_PX 32
+
+G_DEFINE_TYPE (EosTopBar, eos_top_bar, GTK_TYPE_EVENT_BOX)
+
+#define TOP_BAR_PRIVATE(o) \
+  (G_TYPE_INSTANCE_GET_PRIVATE ((o), EOS_TYPE_TOP_BAR, EosTopBarPrivate))
+
+struct _EosTopBarPrivate
+{
+  GtkWidget *inner_grid;
+
+  GtkWidget *actions_hbox;
+
+  GtkWidget *minimize_button;
+  GtkWidget *minimize_icon;
+  GtkWidget *close_button;
+  GtkWidget *close_icon;
+};
+
+enum {
+  CLOSE_CLICKED,
+  MINIMIZE_CLICKED,
+  LAST_SIGNAL
+};
+
+static guint top_bar_signals[LAST_SIGNAL] = { 0 };
+
+static void
+eos_top_bar_get_preferred_height (GtkWidget *widget,
+                                  int *minimum,
+                                  int *natural)
+{
+  if (minimum != NULL)
+    *minimum = _EOS_TOP_BAR_HEIGHT_PX;
+  if (natural != NULL)
+    *natural = _EOS_TOP_BAR_HEIGHT_PX;
+}
+
+static void
+eos_top_bar_class_init (EosTopBarClass *klass)
+{
+  GObjectClass *object_class = G_OBJECT_CLASS (klass);
+  GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
+
+  g_type_class_add_private (klass, sizeof (EosTopBarPrivate));
+
+  widget_class->get_preferred_height = eos_top_bar_get_preferred_height;
+
+  /*
+   * Emitted when the minimize button has been activated.
+   */
+  top_bar_signals[MINIMIZE_CLICKED] =
+      g_signal_new ("minimize-clicked",
+                    G_OBJECT_CLASS_TYPE (object_class),
+                    G_SIGNAL_RUN_FIRST | G_SIGNAL_ACTION,
+                    0,
+                    NULL, NULL, NULL,
+                    G_TYPE_NONE, 0);
+
+  /*
+   * Emitted when the close button has been activated.
+   */
+  top_bar_signals[CLOSE_CLICKED] =
+      g_signal_new ("close-clicked",
+                    G_OBJECT_CLASS_TYPE (object_class),
+                    G_SIGNAL_RUN_FIRST | G_SIGNAL_ACTION,
+                    0,
+                    NULL, NULL, NULL,
+                    G_TYPE_NONE, 0);
+}
+
+static void
+on_minimize_clicked_cb (GtkButton *button,
+                        gpointer user_data)
+{
+  EosTopBar *self = EOS_TOP_BAR (user_data);
+  g_signal_emit (self, top_bar_signals[MINIMIZE_CLICKED], 0);
+}
+
+static void
+on_close_clicked_cb (GtkButton *button,
+                     gpointer user_data)
+{
+  EosTopBar *self = EOS_TOP_BAR (user_data);
+  g_signal_emit (self, top_bar_signals[CLOSE_CLICKED], 0);
+}
+
+static void
+eos_top_bar_init (EosTopBar *self)
+{
+  GtkStyleContext *context;
+
+  self->priv = TOP_BAR_PRIVATE (self);
+
+  context = gtk_widget_get_style_context (GTK_WIDGET (self));
+  gtk_style_context_add_class (context, _EOS_STYLE_CLASS_TOP_BAR);
+
+  self->priv->actions_hbox = gtk_box_new(GTK_ORIENTATION_HORIZONTAL, 0);
+  gtk_widget_set_hexpand (self->priv->actions_hbox, TRUE);
+  gtk_widget_set_halign (self->priv->actions_hbox, GTK_ALIGN_START);
+
+  /* TODO implement adding actions and widgets to the actions_hbox */
+
+  self->priv->minimize_button = gtk_button_new ();
+  gtk_widget_set_hexpand (self->priv->minimize_button, FALSE);
+  gtk_widget_set_halign (self->priv->minimize_button, GTK_ALIGN_END);
+  self->priv->minimize_icon =
+    gtk_image_new_from_icon_name ("list-remove-symbolic",
+                                  GTK_ICON_SIZE_SMALL_TOOLBAR);
+  gtk_button_set_image (GTK_BUTTON (self->priv->minimize_button),
+                        self->priv->minimize_icon);
+
+  self->priv->close_button = gtk_button_new ();
+  gtk_widget_set_hexpand (self->priv->close_button, FALSE);
+  gtk_widget_set_halign (self->priv->close_button, GTK_ALIGN_END);
+  self->priv->close_icon =
+      gtk_image_new_from_icon_name ("window-close-symbolic",
+                                    GTK_ICON_SIZE_SMALL_TOOLBAR);
+  gtk_button_set_image (GTK_BUTTON (self->priv->close_button),
+                        self->priv->close_icon);
+
+  self->priv->inner_grid = gtk_grid_new ();
+  gtk_widget_set_hexpand (self->priv->inner_grid, TRUE);
+  gtk_widget_set_halign (self->priv->inner_grid, GTK_ALIGN_FILL);
+
+  gtk_grid_attach(GTK_GRID (self->priv->inner_grid),
+                  self->priv->actions_hbox,
+                  0, 0, 1, 1);
+  gtk_grid_attach_next_to (GTK_GRID (self->priv->inner_grid),
+                           self->priv->close_button, NULL,
+                           GTK_POS_RIGHT, 1, 1);
+  gtk_grid_attach_next_to (GTK_GRID (self->priv->inner_grid),
+                           self->priv->minimize_button,
+                           self->priv->close_button,
+                           GTK_POS_LEFT, 1, 1);
+
+  gtk_container_add (GTK_CONTAINER (self), self->priv->inner_grid);
+
+  gtk_widget_set_hexpand (GTK_WIDGET (self), TRUE);
+  gtk_widget_set_halign (GTK_WIDGET (self), GTK_ALIGN_FILL);
+
+  g_signal_connect (self->priv->minimize_button, "clicked",
+                    G_CALLBACK (on_minimize_clicked_cb), self);
+  g_signal_connect (self->priv->close_button, "clicked",
+                    G_CALLBACK (on_close_clicked_cb), self);
+}
+
+GtkWidget *
+eos_top_bar_new (void)
+{
+  return GTK_WIDGET (g_object_new (EOS_TYPE_TOP_BAR, NULL));
+}