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[evolution] Add EMailReader.get_preview_pane() method.

commit 5fabd29bd2580bbe479034634b405abfa36bb500
Author: Matthew Barnes <mbarnes redhat com>
Date:   Mon Nov 21 12:42:34 2011 -0500

    Add EMailReader.get_preview_pane() method.
    
    Also give EMailReader::show-search-bar signal a default implementation,
    since it can now dig up the search bar widget itself.

 mail/e-mail-browser.c               |   32 +++++-----
 mail/e-mail-notebook-view.c         |   36 ++++++------
 mail/e-mail-paned-view.c            |   51 +++++++----------
 mail/e-mail-paned-view.h            |    1 -
 mail/e-mail-reader.c                |   23 ++++++++
 mail/e-mail-reader.h                |    3 +
 modules/mail/e-mail-shell-content.c |  105 ++++++++++++++++++-----------------
 7 files changed, 135 insertions(+), 116 deletions(-)
---
diff --git a/mail/e-mail-browser.c b/mail/e-mail-browser.c
index 29ddf3d..dbc2500 100644
--- a/mail/e-mail-browser.c
+++ b/mail/e-mail-browser.c
@@ -64,7 +64,7 @@ struct _EMailBrowserPrivate {
 	GtkWidget *main_toolbar;
 	GtkWidget *message_list;
 	GtkWidget *alert_bar;
-	GtkWidget *search_bar;
+	GtkWidget *preview_pane;
 	GtkWidget *statusbar;
 
 	guint show_deleted : 1;
@@ -529,9 +529,9 @@ mail_browser_dispose (GObject *object)
 		priv->alert_bar = NULL;
 	}
 
-	if (priv->search_bar != NULL) {
-		g_object_unref (priv->search_bar);
-		priv->search_bar = NULL;
+	if (priv->preview_pane != NULL) {
+		g_object_unref (priv->preview_pane);
+		priv->preview_pane = NULL;
 	}
 
 	if (priv->statusbar != NULL) {
@@ -705,10 +705,10 @@ mail_browser_constructed (GObject *object)
 
 	widget = e_preview_pane_new (web_view);
 	gtk_box_pack_start (GTK_BOX (container), widget, TRUE, TRUE, 0);
+	browser->priv->preview_pane = g_object_ref (widget);
 	gtk_widget_show (widget);
 
 	search_bar = e_preview_pane_get_search_bar (E_PREVIEW_PANE (widget));
-	browser->priv->search_bar = g_object_ref (search_bar);
 
 	g_signal_connect_swapped (
 		search_bar, "changed",
@@ -854,6 +854,16 @@ mail_browser_get_popup_menu (EMailReader *reader)
 	return GTK_MENU (widget);
 }
 
+static EPreviewPane *
+mail_browser_get_preview_pane (EMailReader *reader)
+{
+	EMailBrowser *browser;
+
+	browser = E_MAIL_BROWSER (reader);
+
+	return E_PREVIEW_PANE (browser->priv->preview_pane);
+}
+
 static GtkWindow *
 mail_browser_get_window (EMailReader *reader)
 {
@@ -889,16 +899,6 @@ mail_browser_set_message (EMailReader *reader,
 }
 
 static void
-mail_browser_show_search_bar (EMailReader *reader)
-{
-	EMailBrowser *browser;
-
-	browser = E_MAIL_BROWSER (reader);
-
-	gtk_widget_show (browser->priv->search_bar);
-}
-
-static void
 e_mail_browser_class_init (EMailBrowserClass *class)
 {
 	GObjectClass *object_class;
@@ -982,9 +982,9 @@ e_mail_browser_reader_init (EMailReaderInterface *interface)
 	interface->get_hide_deleted = mail_browser_get_hide_deleted;
 	interface->get_message_list = mail_browser_get_message_list;
 	interface->get_popup_menu = mail_browser_get_popup_menu;
+	interface->get_preview_pane = mail_browser_get_preview_pane;
 	interface->get_window = mail_browser_get_window;
 	interface->set_message = mail_browser_set_message;
-	interface->show_search_bar = mail_browser_show_search_bar;
 }
 
 static void
diff --git a/mail/e-mail-notebook-view.c b/mail/e-mail-notebook-view.c
index 2e515f7..0232b92 100644
--- a/mail/e-mail-notebook-view.c
+++ b/mail/e-mail-notebook-view.c
@@ -968,6 +968,23 @@ mail_notebook_view_get_popup_menu (EMailReader *reader)
 	return e_mail_reader_get_popup_menu (reader);
 }
 
+static EPreviewPane *
+mail_notebook_view_get_preview_pane (EMailReader *reader)
+{
+	EMailNotebookView *notebook_view;
+	EMailView *current_view;
+
+	notebook_view = E_MAIL_NOTEBOOK_VIEW (reader);
+	current_view = notebook_view->priv->current_view;
+
+	if (current_view == NULL)
+		return NULL;
+
+	reader = E_MAIL_READER (current_view);
+
+	return e_mail_reader_get_preview_pane (reader);
+}
+
 static GtkWindow *
 mail_notebook_view_get_window (EMailReader *reader)
 {
@@ -1351,23 +1368,6 @@ mail_notebook_view_set_folder (EMailReader *reader,
 	}
 }
 
-static void
-mail_notebook_view_show_search_bar (EMailReader *reader)
-{
-	EMailNotebookView *notebook_view;
-	EMailView *current_view;
-
-	notebook_view = E_MAIL_NOTEBOOK_VIEW (reader);
-	current_view = notebook_view->priv->current_view;
-
-	if (current_view == NULL)
-		return;
-
-	reader = E_MAIL_READER (current_view);
-
-	e_mail_reader_show_search_bar (reader);
-}
-
 static gboolean
 mail_notebook_view_enable_show_folder (EMailReader *reader)
 {
@@ -1455,9 +1455,9 @@ e_mail_notebook_view_reader_init (EMailReaderInterface *interface)
 	interface->get_hide_deleted = mail_notebook_view_get_hide_deleted;
 	interface->get_message_list = mail_notebook_view_get_message_list;
 	interface->get_popup_menu = mail_notebook_view_get_popup_menu;
+	interface->get_preview_pane = mail_notebook_view_get_preview_pane;
 	interface->get_window = mail_notebook_view_get_window;
 	interface->set_folder = mail_notebook_view_set_folder;
-	interface->show_search_bar = mail_notebook_view_show_search_bar;
 	interface->open_selected_mail = mail_notebook_view_open_selected_mail;
 	interface->enable_show_folder = mail_notebook_view_enable_show_folder;
 }
diff --git a/mail/e-mail-paned-view.c b/mail/e-mail-paned-view.c
index 542a15d..d181139 100644
--- a/mail/e-mail-paned-view.c
+++ b/mail/e-mail-paned-view.c
@@ -57,8 +57,7 @@ struct _EMailPanedViewPrivate {
 	GtkWidget *paned;
 	GtkWidget *scrolled_window;
 	GtkWidget *message_list;
-	GtkWidget *search_bar;
-	GtkWidget *preview;
+	GtkWidget *preview_pane;
 
 	EMFormatHTMLDisplay *formatter;
 	GalViewInstance *view_instance;
@@ -348,9 +347,9 @@ mail_paned_view_dispose (GObject *object)
 		priv->message_list = NULL;
 	}
 
-	if (priv->search_bar != NULL) {
-		g_object_unref (priv->search_bar);
-		priv->search_bar = NULL;
+	if (priv->preview_pane != NULL) {
+		g_object_unref (priv->preview_pane);
+		priv->preview_pane = NULL;
 	}
 
 	if (priv->formatter != NULL) {
@@ -467,6 +466,16 @@ mail_paned_view_get_popup_menu (EMailReader *reader)
 	return GTK_MENU (widget);
 }
 
+static EPreviewPane *
+mail_paned_view_get_preview_pane (EMailReader *reader)
+{
+	EMailPanedView *paned_view;
+
+	paned_view = E_MAIL_PANED_VIEW (reader);
+
+	return E_PREVIEW_PANE (paned_view->priv->preview_pane);
+}
+
 static GtkWindow *
 mail_paned_view_get_window (EMailReader *reader)
 {
@@ -574,16 +583,6 @@ exit:
 	message_list_thaw (MESSAGE_LIST (message_list));
 }
 
-static void
-mail_paned_view_show_search_bar (EMailReader *reader)
-{
-	EMailPanedView *paned_view;
-
-	paned_view = E_MAIL_PANED_VIEW (reader);
-
-	gtk_widget_show (paned_view->priv->search_bar);
-}
-
 static guint
 mail_paned_view_reader_open_selected_mail (EMailReader *reader)
 {
@@ -685,8 +684,8 @@ mail_paned_view_constructed (GObject *object)
 	gtk_widget_show (GTK_WIDGET (web_view));
 
 	widget = e_preview_pane_new (web_view);
-	priv->preview = widget;
 	gtk_paned_pack2 (GTK_PANED (container), widget, FALSE, FALSE);
+	priv->preview_pane = g_object_ref (widget);
 	gtk_widget_show (widget);
 
 	g_object_bind_property (
@@ -695,7 +694,6 @@ mail_paned_view_constructed (GObject *object)
 		G_BINDING_SYNC_CREATE);
 
 	search_bar = e_preview_pane_get_search_bar (E_PREVIEW_PANE (widget));
-	priv->search_bar = g_object_ref (search_bar);
 
 	g_signal_connect_swapped (
 		search_bar, "changed",
@@ -740,13 +738,14 @@ static void
 mail_paned_view_set_search_strings (EMailView *view,
                                     GSList *search_strings)
 {
-	EMailPanedView *paned_view;
+	EMailReader *reader;
+	EPreviewPane *preview_pane;
 	ESearchBar *search_bar;
 	ESearchingTokenizer *tokenizer;
 
-	paned_view = E_MAIL_PANED_VIEW (view);
-
-	search_bar = E_SEARCH_BAR (paned_view->priv->search_bar);
+	reader = E_MAIL_READER (view);
+	preview_pane = e_mail_reader_get_preview_pane (reader);
+	search_bar = e_preview_pane_get_search_bar (preview_pane);
 	tokenizer = e_search_bar_get_tokenizer (search_bar);
 
 	e_searching_tokenizer_set_secondary_case_sensitivity (tokenizer, FALSE);
@@ -1015,9 +1014,9 @@ e_mail_paned_view_reader_init (EMailReaderInterface *interface)
 	interface->get_hide_deleted = mail_paned_view_get_hide_deleted;
 	interface->get_message_list = mail_paned_view_get_message_list;
 	interface->get_popup_menu = mail_paned_view_get_popup_menu;
+	interface->get_preview_pane = mail_paned_view_get_preview_pane;
 	interface->get_window = mail_paned_view_get_window;
 	interface->set_folder = mail_paned_view_set_folder;
-	interface->show_search_bar = mail_paned_view_show_search_bar;
 	interface->open_selected_mail = mail_paned_view_reader_open_selected_mail;
 	interface->enable_show_folder = mail_paned_view_enable_show_folder;
 }
@@ -1056,14 +1055,6 @@ e_mail_paned_view_hide_message_list_pane (EMailPanedView *view,
 		gtk_widget_hide (view->priv->scrolled_window);
 }
 
-GtkWidget *
-e_mail_paned_view_get_preview (EMailPanedView *view)
-{
-	g_return_val_if_fail (E_IS_MAIL_PANED_VIEW (view), NULL);
-
-	return view->priv->preview;
-}
-
 void
 e_mail_paned_view_set_enable_show_folder (EMailPanedView *view,
                                           gboolean set)
diff --git a/mail/e-mail-paned-view.h b/mail/e-mail-paned-view.h
index 5e6879a..3226b39 100644
--- a/mail/e-mail-paned-view.h
+++ b/mail/e-mail-paned-view.h
@@ -71,7 +71,6 @@ GtkWidget *	e_mail_paned_view_new		(EShellView *shell_view);
 void		e_mail_paned_view_hide_message_list_pane
 						(EMailPanedView *view,
 						 gboolean visible);
-GtkWidget *	e_mail_paned_view_get_preview	(EMailPanedView *view);
 void		e_mail_paned_view_set_enable_show_folder
 						(EMailPanedView *view,
 						 gboolean set);
diff --git a/mail/e-mail-reader.c b/mail/e-mail-reader.c
index 38cef30..7e47501 100644
--- a/mail/e-mail-reader.c
+++ b/mail/e-mail-reader.c
@@ -2961,6 +2961,15 @@ mail_reader_message_seen (EMailReader *reader,
 }
 
 static void
+mail_reader_show_search_bar (EMailReader *reader)
+{
+	EPreviewPane *preview_pane;
+
+	preview_pane = e_mail_reader_get_preview_pane (reader);
+	e_preview_pane_show_search_bar (preview_pane);
+}
+
+static void
 mail_reader_update_actions (EMailReader *reader,
                             guint32 state)
 {
@@ -3395,6 +3404,7 @@ e_mail_reader_default_init (EMailReaderInterface *interface)
 	interface->folder_loaded = mail_reader_folder_loaded;
 	interface->message_loaded = mail_reader_message_loaded;
 	interface->message_seen = mail_reader_message_seen;
+	interface->show_search_bar = mail_reader_show_search_bar;
 	interface->update_actions = mail_reader_update_actions;
 
 	g_object_interface_install_property (
@@ -4122,6 +4132,19 @@ e_mail_reader_get_popup_menu (EMailReader *reader)
 	return interface->get_popup_menu (reader);
 }
 
+EPreviewPane *
+e_mail_reader_get_preview_pane (EMailReader *reader)
+{
+	EMailReaderInterface *interface;
+
+	g_return_val_if_fail (E_IS_MAIL_READER (reader), NULL);
+
+	interface = E_MAIL_READER_GET_INTERFACE (reader);
+	g_return_val_if_fail (interface->get_preview_pane != NULL, NULL);
+
+	return interface->get_preview_pane (reader);
+}
+
 GPtrArray *
 e_mail_reader_get_selected_uids (EMailReader *reader)
 {
diff --git a/mail/e-mail-reader.h b/mail/e-mail-reader.h
index 696bca6..9e36263 100644
--- a/mail/e-mail-reader.h
+++ b/mail/e-mail-reader.h
@@ -32,6 +32,7 @@
 #include <e-util/e-alert-sink.h>
 #include <mail/e-mail-backend.h>
 #include <mail/em-format-html.h>
+#include <misc/e-preview-pane.h>
 
 /* Standard GObject macros */
 #define E_TYPE_MAIL_READER \
@@ -99,6 +100,7 @@ struct _EMailReaderInterface {
 	gboolean	(*get_hide_deleted)	(EMailReader *reader);
 	GtkWidget *	(*get_message_list)	(EMailReader *reader);
 	GtkMenu *	(*get_popup_menu)	(EMailReader *reader);
+	EPreviewPane *	(*get_preview_pane)	(EMailReader *reader);
 	GPtrArray *	(*get_selected_uids)	(EMailReader *reader);
 	GtkWindow *	(*get_window)		(EMailReader *reader);
 
@@ -145,6 +147,7 @@ GtkWidget *	e_mail_reader_get_message_list	(EMailReader *reader);
 guint		e_mail_reader_open_selected_mail
 						(EMailReader *reader);
 GtkMenu *	e_mail_reader_get_popup_menu	(EMailReader *reader);
+EPreviewPane *	e_mail_reader_get_preview_pane	(EMailReader *reader);
 GPtrArray *	e_mail_reader_get_selected_uids	(EMailReader *reader);
 GtkWindow *	e_mail_reader_get_window	(EMailReader *reader);
 CamelFolder *	e_mail_reader_get_folder	(EMailReader *reader);
diff --git a/modules/mail/e-mail-shell-content.c b/modules/mail/e-mail-shell-content.c
index 7918930..ed94b45 100644
--- a/modules/mail/e-mail-shell-content.c
+++ b/modules/mail/e-mail-shell-content.c
@@ -46,6 +46,10 @@
 #include "e-mail-shell-backend.h"
 #include "e-mail-shell-view-actions.h"
 
+#define E_MAIL_SHELL_CONTENT_GET_PRIVATE(obj) \
+	(G_TYPE_INSTANCE_GET_PRIVATE \
+	((obj), E_TYPE_MAIL_SHELL_CONTENT, EMailShellContentPrivate))
+
 struct _EMailShellContentPrivate {
 	EMailView *mail_view;
 };
@@ -153,7 +157,7 @@ mail_shell_content_dispose (GObject *object)
 {
 	EMailShellContentPrivate *priv;
 
-	priv = E_MAIL_SHELL_CONTENT (object)->priv;
+	priv = E_MAIL_SHELL_CONTENT_GET_PRIVATE (object);
 
 	if (priv->mail_view != NULL) {
 		g_object_unref (priv->mail_view);
@@ -173,7 +177,7 @@ mail_shell_content_constructed (GObject *object)
 	GtkWidget *container;
 	GtkWidget *widget;
 
-	priv = E_MAIL_SHELL_CONTENT (object)->priv;
+	priv = E_MAIL_SHELL_CONTENT_GET_PRIVATE (object);
 
 	/* Chain up to parent's constructed () method. */
 	G_OBJECT_CLASS (parent_class)->constructed (object);
@@ -209,14 +213,14 @@ mail_shell_content_constructed (GObject *object)
 static guint32
 mail_shell_content_check_state (EShellContent *shell_content)
 {
-	EMailShellContentPrivate *priv;
+	EMailShellContent *mail_shell_content;
 	EMailReader *reader;
 
-	priv = E_MAIL_SHELL_CONTENT (shell_content)->priv;
+	mail_shell_content = E_MAIL_SHELL_CONTENT (shell_content);
 
 	/* Forward this to our internal EMailView, which
 	 * also implements the EMailReader interface. */
-	reader = E_MAIL_READER (priv->mail_view);
+	reader = E_MAIL_READER (mail_shell_content->priv->mail_view);
 
 	return e_mail_reader_check_state (reader);
 }
@@ -224,13 +228,13 @@ mail_shell_content_check_state (EShellContent *shell_content)
 static void
 mail_shell_content_focus_search_results (EShellContent *shell_content)
 {
-	EMailShellContentPrivate *priv;
+	EMailShellContent *mail_shell_content;
 	GtkWidget *message_list;
 	EMailReader *reader;
 
-	priv = E_MAIL_SHELL_CONTENT (shell_content)->priv;
+	mail_shell_content = E_MAIL_SHELL_CONTENT (shell_content);
 
-	reader = E_MAIL_READER (priv->mail_view);
+	reader = E_MAIL_READER (mail_shell_content->priv->mail_view);
 	message_list = e_mail_reader_get_message_list (reader);
 
 	gtk_widget_grab_focus (message_list);
@@ -239,13 +243,13 @@ mail_shell_content_focus_search_results (EShellContent *shell_content)
 static guint
 mail_shell_content_open_selected_mail (EMailReader *reader)
 {
-	EMailShellContentPrivate *priv;
+	EMailShellContent *mail_shell_content;
 
-	priv = E_MAIL_SHELL_CONTENT (reader)->priv;
+	mail_shell_content = E_MAIL_SHELL_CONTENT (reader);
 
 	/* Forward this to our internal EMailView, which
 	 * also implements the EMailReader interface. */
-	reader = E_MAIL_READER (priv->mail_view);
+	reader = E_MAIL_READER (mail_shell_content->priv->mail_view);
 
 	return e_mail_reader_open_selected_mail (reader);
 }
@@ -280,13 +284,13 @@ mail_shell_content_get_action_group (EMailReader *reader,
 static EAlertSink *
 mail_shell_content_get_alert_sink (EMailReader *reader)
 {
-	EMailShellContentPrivate *priv;
+	EMailShellContent *mail_shell_content;
 
-	priv = E_MAIL_SHELL_CONTENT (reader)->priv;
+	mail_shell_content = E_MAIL_SHELL_CONTENT (reader);
 
 	/* Forward this to our internal EMailView, which
 	 * also implements the EMailReader interface. */
-	reader = E_MAIL_READER (priv->mail_view);
+	reader = E_MAIL_READER (mail_shell_content->priv->mail_view);
 
 	return e_mail_reader_get_alert_sink (reader);
 }
@@ -294,13 +298,13 @@ mail_shell_content_get_alert_sink (EMailReader *reader)
 static EMailBackend *
 mail_shell_content_get_backend (EMailReader *reader)
 {
-	EMailShellContentPrivate *priv;
+	EMailShellContent *mail_shell_content;
 
-	priv = E_MAIL_SHELL_CONTENT (reader)->priv;
+	mail_shell_content = E_MAIL_SHELL_CONTENT (reader);
 
 	/* Forward this to our internal EMailView, which
 	 * also implements the EMailReader interface. */
-	reader = E_MAIL_READER (priv->mail_view);
+	reader = E_MAIL_READER (mail_shell_content->priv->mail_view);
 
 	return e_mail_reader_get_backend (reader);
 }
@@ -308,13 +312,13 @@ mail_shell_content_get_backend (EMailReader *reader)
 static EMFormatHTML *
 mail_shell_content_get_formatter (EMailReader *reader)
 {
-	EMailShellContentPrivate *priv;
+	EMailShellContent *mail_shell_content;
 
-	priv = E_MAIL_SHELL_CONTENT (reader)->priv;
+	mail_shell_content = E_MAIL_SHELL_CONTENT (reader);
 
 	/* Forward this to our internal EMailView, which
 	 * also implements the EMailReader interface. */
-	reader = E_MAIL_READER (priv->mail_view);
+	reader = E_MAIL_READER (mail_shell_content->priv->mail_view);
 
 	return e_mail_reader_get_formatter (reader);
 }
@@ -322,13 +326,13 @@ mail_shell_content_get_formatter (EMailReader *reader)
 static gboolean
 mail_shell_content_get_hide_deleted (EMailReader *reader)
 {
-	EMailShellContentPrivate *priv;
+	EMailShellContent *mail_shell_content;
 
-	priv = E_MAIL_SHELL_CONTENT (reader)->priv;
+	mail_shell_content = E_MAIL_SHELL_CONTENT (reader);
 
 	/* Forward this to our internal EMailView, which
 	 * also implements the EMailReader interface. */
-	reader = E_MAIL_READER (priv->mail_view);
+	reader = E_MAIL_READER (mail_shell_content->priv->mail_view);
 
 	return e_mail_reader_get_hide_deleted (reader);
 }
@@ -336,13 +340,13 @@ mail_shell_content_get_hide_deleted (EMailReader *reader)
 static GtkWidget *
 mail_shell_content_get_message_list (EMailReader *reader)
 {
-	EMailShellContentPrivate *priv;
+	EMailShellContent *mail_shell_content;
 
-	priv = E_MAIL_SHELL_CONTENT (reader)->priv;
+	mail_shell_content = E_MAIL_SHELL_CONTENT (reader);
 
 	/* Forward this to our internal EMailView, which
 	 * also implements the EMailReader interface. */
-	reader = E_MAIL_READER (priv->mail_view);
+	reader = E_MAIL_READER (mail_shell_content->priv->mail_view);
 
 	return e_mail_reader_get_message_list (reader);
 }
@@ -350,58 +354,58 @@ mail_shell_content_get_message_list (EMailReader *reader)
 static GtkMenu *
 mail_shell_content_get_popup_menu (EMailReader *reader)
 {
-	EMailShellContentPrivate *priv;
+	EMailShellContent *mail_shell_content;
 
-	priv = E_MAIL_SHELL_CONTENT (reader)->priv;
+	mail_shell_content = E_MAIL_SHELL_CONTENT (reader);
 
 	/* Forward this to our internal EMailView, which
 	 * also implements the EMailReader interface. */
-	reader = E_MAIL_READER (priv->mail_view);
+	reader = E_MAIL_READER (mail_shell_content->priv->mail_view);
 
 	return e_mail_reader_get_popup_menu (reader);
 }
 
-static GtkWindow *
-mail_shell_content_get_window (EMailReader *reader)
+static EPreviewPane *
+mail_shell_content_get_preview_pane (EMailReader *reader)
 {
-	EMailShellContentPrivate *priv;
+	EMailShellContent *mail_shell_content;
 
-	priv = E_MAIL_SHELL_CONTENT (reader)->priv;
+	mail_shell_content = E_MAIL_SHELL_CONTENT (reader);
 
 	/* Forward this to our internal EMailView, which
 	 * also implements the EMailReader interface. */
-	reader = E_MAIL_READER (priv->mail_view);
+	reader = E_MAIL_READER (mail_shell_content->priv->mail_view);
 
-	return e_mail_reader_get_window (reader);
+	return e_mail_reader_get_preview_pane (reader);
 }
 
-static void
-mail_shell_content_set_folder (EMailReader *reader,
-                               CamelFolder *folder)
+static GtkWindow *
+mail_shell_content_get_window (EMailReader *reader)
 {
-	EMailShellContentPrivate *priv;
+	EMailShellContent *mail_shell_content;
 
-	priv = E_MAIL_SHELL_CONTENT (reader)->priv;
+	mail_shell_content = E_MAIL_SHELL_CONTENT (reader);
 
 	/* Forward this to our internal EMailView, which
 	 * also implements the EMailReader interface. */
-	reader = E_MAIL_READER (priv->mail_view);
+	reader = E_MAIL_READER (mail_shell_content->priv->mail_view);
 
-	return e_mail_reader_set_folder (reader, folder);
+	return e_mail_reader_get_window (reader);
 }
 
 static void
-mail_shell_content_show_search_bar (EMailReader *reader)
+mail_shell_content_set_folder (EMailReader *reader,
+                               CamelFolder *folder)
 {
-	EMailShellContentPrivate *priv;
+	EMailShellContent *mail_shell_content;
 
-	priv = E_MAIL_SHELL_CONTENT (reader)->priv;
+	mail_shell_content = E_MAIL_SHELL_CONTENT (reader);
 
 	/* Forward this to our internal EMailView, which
 	 * also implements the EMailReader interface. */
-	reader = E_MAIL_READER (priv->mail_view);
+	reader = E_MAIL_READER (mail_shell_content->priv->mail_view);
 
-	e_mail_reader_show_search_bar (reader);
+	return e_mail_reader_set_folder (reader, folder);
 }
 
 static void
@@ -456,9 +460,8 @@ mail_shell_content_class_init (EMailShellContentClass *class)
 static void
 mail_shell_content_init (EMailShellContent *mail_shell_content)
 {
-	mail_shell_content->priv = G_TYPE_INSTANCE_GET_PRIVATE (
-		mail_shell_content, E_TYPE_MAIL_SHELL_CONTENT,
-		EMailShellContentPrivate);
+	mail_shell_content->priv =
+		E_MAIL_SHELL_CONTENT_GET_PRIVATE (mail_shell_content);
 
 	/* Postpone widget construction until we have a shell view. */
 }
@@ -479,9 +482,9 @@ mail_shell_content_reader_init (EMailReaderInterface *interface)
 	interface->get_hide_deleted = mail_shell_content_get_hide_deleted;
 	interface->get_message_list = mail_shell_content_get_message_list;
 	interface->get_popup_menu = mail_shell_content_get_popup_menu;
+	interface->get_preview_pane = mail_shell_content_get_preview_pane;
 	interface->get_window = mail_shell_content_get_window;
 	interface->set_folder = mail_shell_content_set_folder;
-	interface->show_search_bar = mail_shell_content_show_search_bar;
 	interface->open_selected_mail = mail_shell_content_open_selected_mail;
 }
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