Merge commit 'origin/kill-bonobo'

1 files changed, 421 insertions, 0 deletions

diff --git a/shell/e-shell-taskbar.c b/shell/e-shell-taskbar.c
new file mode 100644
index 0000000000..61f27fbc79
--- /dev/null
+++ b/shell/e-shell-taskbar.c
@@ -0,0 +1,421 @@
+/*
+ * e-shell-taskbar.c
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) version 3.
+ *
+ * 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with the program; if not, see <http://www.gnu.org/licenses/>
+ *
+ *
+ * Copyright (C) 1999-2008 Novell, Inc. (www.novell.com)
+ *
+ */
+
+#include "e-shell-taskbar.h"
+
+#include <e-shell-view.h>
+
+#include <widgets/misc/e-activity-proxy.h>
+
+#define E_SHELL_TASKBAR_GET_PRIVATE(obj) \
+	(G_TYPE_INSTANCE_GET_PRIVATE \
+	((obj), E_TYPE_SHELL_TASKBAR, EShellTaskbarPrivate))
+
+struct _EShellTaskbarPrivate {
+
+	gpointer shell_view;  /* weak pointer */
+
+	GtkWidget *label;
+	GtkWidget *hbox;
+
+	GHashTable *proxy_table;
+};
+
+enum {
+	PROP_0,
+	PROP_MESSAGE,
+	PROP_SHELL_VIEW
+};
+
+static gpointer parent_class;
+
+static void
+shell_taskbar_activity_remove (EShellTaskbar *shell_taskbar,
+                               EActivity *activity)
+{
+	GtkBox *box;
+	GtkWidget *proxy;
+	GHashTable *proxy_table;
+
+	box = GTK_BOX (shell_taskbar->priv->hbox);
+	proxy_table = shell_taskbar->priv->proxy_table;
+	proxy = g_hash_table_lookup (proxy_table, activity);
+	g_return_if_fail (proxy != NULL);
+
+	g_hash_table_remove (proxy_table, activity);
+	gtk_container_remove (GTK_CONTAINER (box), proxy);
+
+	if (box->children == NULL)
+		gtk_widget_hide (GTK_WIDGET (box));
+}
+
+static void
+shell_taskbar_activity_add (EShellTaskbar *shell_taskbar,
+                            EActivity *activity)
+{
+	GtkBox *box;
+	GtkWidget *proxy;
+
+	proxy = e_activity_proxy_new (activity);
+	box = GTK_BOX (shell_taskbar->priv->hbox);
+	gtk_box_pack_start (box, proxy, TRUE, TRUE, 0);
+	gtk_box_reorder_child (box, proxy, 0);
+	gtk_widget_show (GTK_WIDGET (box));
+	gtk_widget_show (proxy);
+
+	g_hash_table_insert (
+		shell_taskbar->priv->proxy_table,
+		g_object_ref (activity), g_object_ref (proxy));
+
+	g_signal_connect_swapped (
+		activity, "cancelled",
+		G_CALLBACK (shell_taskbar_activity_remove), shell_taskbar);
+
+	g_signal_connect_swapped (
+		activity, "completed",
+		G_CALLBACK (shell_taskbar_activity_remove), shell_taskbar);
+}
+
+static void
+shell_taskbar_set_shell_view (EShellTaskbar *shell_taskbar,
+                              EShellView *shell_view)
+{
+	g_return_if_fail (shell_taskbar->priv->shell_view == NULL);
+
+	shell_taskbar->priv->shell_view = shell_view;
+
+	g_object_add_weak_pointer (
+		G_OBJECT (shell_view),
+		&shell_taskbar->priv->shell_view);
+}
+
+static void
+shell_taskbar_set_property (GObject *object,
+                            guint property_id,
+                            const GValue *value,
+                            GParamSpec *pspec)
+{
+	switch (property_id) {
+		case PROP_MESSAGE:
+			e_shell_taskbar_set_message (
+				E_SHELL_TASKBAR (object),
+				g_value_get_string (value));
+			return;
+
+		case PROP_SHELL_VIEW:
+			shell_taskbar_set_shell_view (
+				E_SHELL_TASKBAR (object),
+				g_value_get_object (value));
+			return;
+	}
+
+	G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
+}
+
+static void
+shell_taskbar_get_property (GObject *object,
+                            guint property_id,
+                            GValue *value,
+                            GParamSpec *pspec)
+{
+	switch (property_id) {
+		case PROP_MESSAGE:
+			g_value_set_string (
+				value, e_shell_taskbar_get_message (
+				E_SHELL_TASKBAR (object)));
+			return;
+
+		case PROP_SHELL_VIEW:
+			g_value_set_object (
+				value, e_shell_taskbar_get_shell_view (
+				E_SHELL_TASKBAR (object)));
+			return;
+	}
+
+	G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
+}
+
+static void
+shell_taskbar_dispose (GObject *object)
+{
+	EShellTaskbarPrivate *priv;
+
+	priv = E_SHELL_TASKBAR_GET_PRIVATE (object);
+
+	if (priv->shell_view != NULL) {
+		g_object_remove_weak_pointer (
+			G_OBJECT (priv->shell_view), &priv->shell_view);
+		priv->shell_view = NULL;
+	}
+
+	if (priv->label != NULL) {
+		g_object_unref (priv->label);
+		priv->label = NULL;
+	}
+
+	if (priv->hbox != NULL) {
+		g_object_unref (priv->hbox);
+		priv->hbox = NULL;
+	}
+
+	g_hash_table_remove_all (priv->proxy_table);
+
+	/* Chain up to parent's dispose() method. */
+	G_OBJECT_CLASS (parent_class)->dispose (object);
+}
+
+static void
+shell_taskbar_finalize (GObject *object)
+{
+	EShellTaskbarPrivate *priv;
+
+	priv = E_SHELL_TASKBAR_GET_PRIVATE (object);
+
+	g_hash_table_destroy (priv->proxy_table);
+
+	/* Chain up to parent's finalize() method. */
+	G_OBJECT_CLASS (parent_class)->finalize (object);
+}
+
+static void
+shell_taskbar_constructed (GObject *object)
+{
+	EShellView *shell_view;
+	EShellBackend *shell_backend;
+	EShellTaskbar *shell_taskbar;
+
+	shell_taskbar = E_SHELL_TASKBAR (object);
+	shell_view = e_shell_taskbar_get_shell_view (shell_taskbar);
+	shell_backend = e_shell_view_get_shell_backend (shell_view);
+
+	g_signal_connect_swapped (
+		shell_backend, "activity-added",
+		G_CALLBACK (shell_taskbar_activity_add), shell_taskbar);
+}
+
+static void
+shell_taskbar_class_init (EShellTaskbarClass *class)
+{
+	GObjectClass *object_class;
+
+	parent_class = g_type_class_peek_parent (class);
+	g_type_class_add_private (class, sizeof (EShellTaskbarPrivate));
+
+	object_class = G_OBJECT_CLASS (class);
+	object_class->set_property = shell_taskbar_set_property;
+	object_class->get_property = shell_taskbar_get_property;
+	object_class->dispose = shell_taskbar_dispose;
+	object_class->finalize = shell_taskbar_finalize;
+	object_class->constructed = shell_taskbar_constructed;
+
+	/**
+	 * EShellTaskbar:message
+	 *
+	 * The message to display in the taskbar.
+	 **/
+	g_object_class_install_property (
+		object_class,
+		PROP_MESSAGE,
+		g_param_spec_string (
+			"message",
+			NULL,
+			NULL,
+			NULL,
+			G_PARAM_READWRITE |
+			G_PARAM_CONSTRUCT));
+
+	/**
+	 * EShellTaskbar:shell-view
+	 *
+	 * The #EShellView to which the taskbar widget belongs.
+	 **/
+	g_object_class_install_property (
+		object_class,
+		PROP_SHELL_VIEW,
+		g_param_spec_object (
+			"shell-view",
+			NULL,
+			NULL,
+			E_TYPE_SHELL_VIEW,
+			G_PARAM_READWRITE |
+			G_PARAM_CONSTRUCT_ONLY));
+}
+
+static void
+shell_taskbar_init (EShellTaskbar *shell_taskbar)
+{
+	GtkWidget *widget;
+	GHashTable *proxy_table;
+	gint height;
+
+	proxy_table = g_hash_table_new_full (
+		g_direct_hash, g_direct_equal,
+		(GDestroyNotify) g_object_unref,
+		(GDestroyNotify) g_object_unref);
+
+	shell_taskbar->priv = E_SHELL_TASKBAR_GET_PRIVATE (shell_taskbar);
+	shell_taskbar->priv->proxy_table = proxy_table;
+
+	gtk_box_set_spacing (GTK_BOX (shell_taskbar), 12);
+
+	widget = gtk_label_new (NULL);
+	gtk_label_set_ellipsize (GTK_LABEL (widget), PANGO_ELLIPSIZE_END);
+	gtk_box_pack_start (GTK_BOX (shell_taskbar), widget, TRUE, TRUE, 0);
+	gtk_misc_set_alignment (GTK_MISC (widget), 0.0, 0.5);
+	shell_taskbar->priv->label = g_object_ref (widget);
+	gtk_widget_hide (widget);
+
+	widget = gtk_hbox_new (FALSE, 3);
+	gtk_box_pack_start (GTK_BOX (shell_taskbar), widget, TRUE, TRUE, 0);
+	shell_taskbar->priv->hbox = g_object_ref (widget);
+	gtk_widget_hide (widget);
+
+	/* Make the taskbar large enough to accomodate a small icon.
+	 * XXX The "* 2" is a fudge factor to allow for some padding
+	 *     The true value is probably buried in a style property. */
+	gtk_icon_size_lookup (GTK_ICON_SIZE_MENU, NULL, &height);
+	gtk_widget_set_size_request (
+		GTK_WIDGET (shell_taskbar), -1, (height * 2));
+}
+
+GType
+e_shell_taskbar_get_type (void)
+{
+	static GType type = 0;
+
+	if (G_UNLIKELY (type == 0)) {
+		static const GTypeInfo type_info = {
+			sizeof (EShellTaskbarClass),
+			(GBaseInitFunc) NULL,
+			(GBaseFinalizeFunc) NULL,
+			(GClassInitFunc) shell_taskbar_class_init,
+			(GClassFinalizeFunc) NULL,
+			NULL,  /* class_data */
+			sizeof (EShellTaskbar),
+			0,     /* n_preallocs */
+			(GInstanceInitFunc) shell_taskbar_init,
+			NULL   /* value_table */
+		};
+
+		type = g_type_register_static (
+			GTK_TYPE_HBOX, "EShellTaskbar", &type_info, 0);
+	}
+
+	return type;
+}
+
+/**
+ * e_shell_taskbar_new:
+ * @shell_view: an #EShellView
+ *
+ * Creates a new #EShellTaskbar instance belonging to @shell_view.
+ *
+ * Returns: a new #EShellTaskbar instance
+ **/
+GtkWidget *
+e_shell_taskbar_new (EShellView *shell_view)
+{
+	g_return_val_if_fail (E_IS_SHELL_VIEW (shell_view), NULL);
+
+	return g_object_new (
+		E_TYPE_SHELL_TASKBAR, "shell-view", shell_view, NULL);
+}
+
+/**
+ * e_shell_taskbar_get_shell_view:
+ * @shell_taskbar: an #EShellTaskbar
+ *
+ * Returns the #EShellView that was passed to e_shell_taskbar_new().
+ *
+ * Returns: the #EShellView to which @shell_taskbar belongs
+ **/
+EShellView *
+e_shell_taskbar_get_shell_view (EShellTaskbar *shell_taskbar)
+{
+	g_return_val_if_fail (E_IS_SHELL_TASKBAR (shell_taskbar), NULL);
+
+	return shell_taskbar->priv->shell_view;
+}
+
+/**
+ * e_shell_taskbar_get_message:
+ * @shell_taskbar: an #EShellTaskbar
+ *
+ * Returns the message currently shown in the taskbar, or an empty string
+ * if no message is shown.  Taskbar messages are used primarily for menu
+ * tooltips.
+ *
+ * Returns: the current taskbar message
+ **/
+const gchar *
+e_shell_taskbar_get_message (EShellTaskbar *shell_taskbar)
+{
+	GtkWidget *label;
+
+	g_return_val_if_fail (E_IS_SHELL_TASKBAR (shell_taskbar), NULL);
+
+	label = shell_taskbar->priv->label;
+
+	return gtk_label_get_text (GTK_LABEL (label));
+}
+
+/**
+ * e_shell_taskbar_set_message:
+ * @shell_taskbar: an #EShellTaskbar
+ * @message: the message to show
+ *
+ * Shows a message in the taskbar.  If @message is %NULL or an empty string,
+ * the taskbar message is cleared.  Taskbar messages are used primarily for
+ * menu tooltips.
+ **/
+void
+e_shell_taskbar_set_message (EShellTaskbar *shell_taskbar,
+                             const gchar *message)
+{
+	GtkWidget *label;
+
+	g_return_if_fail (E_IS_SHELL_TASKBAR (shell_taskbar));
+
+	label = shell_taskbar->priv->label;
+	gtk_label_set_text (GTK_LABEL (label), message);
+
+	if (message != NULL && *message != '\0')
+		gtk_widget_show (label);
+	else
+		gtk_widget_hide (label);
+
+	g_object_notify (G_OBJECT (shell_taskbar), "message");
+}
+
+/**
+ * e_shell_taskbar_unset_message:
+ * @shell_taskbar: an #EShellTaskbar
+ *
+ * This is equivalent to passing a %NULL message to
+ * e_shell_taskbar_set_message().
+ **/
+void
+e_shell_taskbar_unset_message (EShellTaskbar *shell_taskbar)
+{
+	g_return_if_fail (E_IS_SHELL_TASKBAR (shell_taskbar));
+
+	e_shell_taskbar_set_message (shell_taskbar, NULL);
+}