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diff --git a/gedit/gedit-view.c b/gedit/gedit-view.c
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+/*
+ * This file is part of gedit
+ *
+ * Copyright (C) 1998, 1999 Alex Roberts, Evan Lawrence
+ * Copyright (C) 2000, 2002 Chema Celorio, Paolo Maggi
+ * Copyright (C) 2003-2005 Paolo Maggi
+ *
+ * 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 "gedit-view.h"
+#include <libpeas/peas-extension-set.h>
+#include "gedit-view-activatable.h"
+#include "gedit-plugins-engine.h"
+#include "gedit-debug.h"
+#include "gedit-utils.h"
+#include "gedit-settings.h"
+
+struct _GeditViewPrivate
+{
+ PeasExtensionSet *extensions;
+
+ gchar *direct_save_uri;
+
+ TeplSignalGroup *file_signal_group;
+};
+
+enum
+{
+ TARGET_URI_LIST = 100,
+ TARGET_XDNDDIRECTSAVE
+};
+
+enum
+{
+ SIGNAL_DROP_URIS,
+ N_SIGNALS
+};
+
+static guint signals[N_SIGNALS];
+
+G_DEFINE_TYPE_WITH_PRIVATE (GeditView, gedit_view, TEPL_TYPE_VIEW)
+
+static void
+update_editable (GeditView *view)
+{
+ GeditDocument *doc;
+ GtkSourceFile *file;
+
+ doc = GEDIT_DOCUMENT (gtk_text_view_get_buffer (GTK_TEXT_VIEW (view)));
+ file = gedit_document_get_file (doc);
+
+ gtk_text_view_set_editable (GTK_TEXT_VIEW (view),
+ !gtk_source_file_is_readonly (file));
+}
+
+static void
+file_read_only_notify_cb (GtkSourceFile *file,
+ GParamSpec *pspec,
+ GeditView *view)
+{
+ update_editable (view);
+}
+
+static void
+buffer_changed (GeditView *view)
+{
+ GeditDocument *doc;
+ GtkSourceFile *file;
+
+ doc = GEDIT_DOCUMENT (gtk_text_view_get_buffer (GTK_TEXT_VIEW (view)));
+ file = gedit_document_get_file (doc);
+
+ tepl_signal_group_clear (&view->priv->file_signal_group);
+ view->priv->file_signal_group = tepl_signal_group_new (G_OBJECT (file));
+
+ tepl_signal_group_add (view->priv->file_signal_group,
+ g_signal_connect (file,
+ "notify::read-only",
+ G_CALLBACK (file_read_only_notify_cb),
+ view));
+
+ update_editable (view);
+}
+
+static void
+buffer_notify_cb (GeditView *view,
+ GParamSpec *pspec,
+ gpointer user_data)
+{
+ buffer_changed (view);
+}
+
+static void
+gedit_view_init (GeditView *view)
+{
+ GtkTargetList *target_list;
+ GtkStyleContext *style_context;
+
+ gedit_debug (DEBUG_VIEW);
+
+ view->priv = gedit_view_get_instance_private (view);
+
+ /* Drag and drop support */
+ view->priv->direct_save_uri = NULL;
+ target_list = gtk_drag_dest_get_target_list (GTK_WIDGET (view));
+
+ if (target_list != NULL)
+ {
+ gtk_target_list_add (target_list,
+ gdk_atom_intern ("XdndDirectSave0", FALSE),
+ 0,
+ TARGET_XDNDDIRECTSAVE);
+ gtk_target_list_add_uri_targets (target_list, TARGET_URI_LIST);
+ }
+
+ /* GeditViewActivatable */
+ view->priv->extensions =
+ peas_extension_set_new (PEAS_ENGINE (gedit_plugins_engine_get_default ()),
+ GEDIT_TYPE_VIEW_ACTIVATABLE,
+ "view", view,
+ NULL);
+
+ /* Act on buffer changes */
+ buffer_changed (view);
+ g_signal_connect (view,
+ "notify::buffer",
+ G_CALLBACK (buffer_notify_cb),
+ NULL);
+
+ /* CSS stuff */
+ style_context = gtk_widget_get_style_context (GTK_WIDGET (view));
+ gtk_style_context_add_class (style_context, "gedit-view");
+}
+
+static void
+gedit_view_dispose (GObject *object)
+{
+ GeditView *view = GEDIT_VIEW (object);
+
+ g_clear_object (&view->priv->extensions);
+ tepl_signal_group_clear (&view->priv->file_signal_group);
+
+ /* Disconnect notify buffer because the destroy of the textview will set
+ * the buffer to NULL, and we call get_buffer in the notify which would
+ * reinstate a buffer which we don't want.
+ * There is no problem calling g_signal_handlers_disconnect_by_func()
+ * several times (if dispose() is called several times).
+ */
+ g_signal_handlers_disconnect_by_func (view, buffer_notify_cb, NULL);
+
+ G_OBJECT_CLASS (gedit_view_parent_class)->dispose (object);
+}
+
+static void
+update_font (GeditView *view)
+{
+ TeplSettings *settings;
+ gchar *selected_font;
+
+ settings = tepl_settings_get_singleton ();
+
+ selected_font = tepl_settings_get_selected_font (settings);
+ tepl_utils_override_font_string (GTK_WIDGET (view), selected_font);
+ g_free (selected_font);
+}
+
+static void
+font_changed_cb (TeplSettings *settings,
+ GeditView *view)
+{
+ update_font (view);
+}
+
+static void
+gedit_view_constructed (GObject *object)
+{
+ GeditView *view = GEDIT_VIEW (object);
+ GeditSettings *gedit_settings;
+ TeplSettings *tepl_settings;
+ GSettings *editor_settings;
+
+ G_OBJECT_CLASS (gedit_view_parent_class)->constructed (object);
+
+ gedit_settings = _gedit_settings_get_singleton ();
+ tepl_settings = tepl_settings_get_singleton ();
+
+ editor_settings = _gedit_settings_peek_editor_settings (gedit_settings);
+
+ update_font (view);
+ g_signal_connect_object (tepl_settings,
+ "font-changed",
+ G_CALLBACK (font_changed_cb),
+ view,
+ 0);
+
+ g_settings_bind (editor_settings, GEDIT_SETTINGS_DISPLAY_LINE_NUMBERS,
+ view, "show-line-numbers",
+ G_SETTINGS_BIND_GET | G_SETTINGS_BIND_NO_SENSITIVITY);
+
+ g_settings_bind (editor_settings, GEDIT_SETTINGS_AUTO_INDENT,
+ view, "auto-indent",
+ G_SETTINGS_BIND_GET | G_SETTINGS_BIND_NO_SENSITIVITY);
+
+ g_settings_bind (editor_settings, GEDIT_SETTINGS_TABS_SIZE,
+ view, "tab-width",
+ G_SETTINGS_BIND_GET | G_SETTINGS_BIND_NO_SENSITIVITY);
+
+ g_settings_bind (editor_settings, GEDIT_SETTINGS_INSERT_SPACES,
+ view, "insert-spaces-instead-of-tabs",
+ G_SETTINGS_BIND_GET | G_SETTINGS_BIND_NO_SENSITIVITY);
+
+ g_settings_bind (editor_settings, GEDIT_SETTINGS_DISPLAY_RIGHT_MARGIN,
+ view, "show-right-margin",
+ G_SETTINGS_BIND_GET | G_SETTINGS_BIND_NO_SENSITIVITY);
+
+ g_settings_bind (editor_settings, GEDIT_SETTINGS_BACKGROUND_PATTERN,
+ view, "background-pattern",
+ G_SETTINGS_BIND_GET | G_SETTINGS_BIND_NO_SENSITIVITY);
+
+ g_settings_bind (editor_settings, GEDIT_SETTINGS_RIGHT_MARGIN_POSITION,
+ view, "right-margin-position",
+ G_SETTINGS_BIND_GET | G_SETTINGS_BIND_NO_SENSITIVITY);
+
+ g_settings_bind (editor_settings, GEDIT_SETTINGS_HIGHLIGHT_CURRENT_LINE,
+ view, "highlight-current-line",
+ G_SETTINGS_BIND_GET | G_SETTINGS_BIND_NO_SENSITIVITY);
+
+ g_settings_bind (editor_settings, GEDIT_SETTINGS_WRAP_MODE,
+ view, "wrap-mode",
+ G_SETTINGS_BIND_GET | G_SETTINGS_BIND_NO_SENSITIVITY);
+
+ g_settings_bind (editor_settings, GEDIT_SETTINGS_SMART_HOME_END,
+ view, "smart-home-end",
+ G_SETTINGS_BIND_GET | G_SETTINGS_BIND_NO_SENSITIVITY);
+}
+
+static GdkAtom
+drag_get_uri_target (GtkWidget *widget,
+ GdkDragContext *context)
+{
+ GdkAtom target;
+ GtkTargetList *target_list;
+
+ target_list = gtk_target_list_new (NULL, 0);
+ gtk_target_list_add_uri_targets (target_list, 0);
+
+ target = gtk_drag_dest_find_target (widget, context, target_list);
+ gtk_target_list_unref (target_list);
+
+ return target;
+}
+
+static gboolean
+gedit_view_drag_motion (GtkWidget *widget,
+ GdkDragContext *context,
+ gint x,
+ gint y,
+ guint timestamp)
+{
+ gboolean drop_zone;
+
+ /* Chain up to allow textview to scroll and position dnd mark, note
+ * that this needs to be checked if gtksourceview or gtktextview
+ * changes drag_motion behaviour.
+ */
+ drop_zone = GTK_WIDGET_CLASS (gedit_view_parent_class)->drag_motion (widget,
+ context,
+ x, y,
+ timestamp);
+
+ /* If this is a URL, deal with it here */
+ if (drag_get_uri_target (widget, context) != GDK_NONE)
+ {
+ gdk_drag_status (context,
+ gdk_drag_context_get_suggested_action (context),
+ timestamp);
+ drop_zone = TRUE;
+ }
+
+ return drop_zone;
+}
+
+static void
+gedit_view_drag_data_received (GtkWidget *widget,
+ GdkDragContext *context,
+ gint x,
+ gint y,
+ GtkSelectionData *selection_data,
+ guint info,
+ guint timestamp)
+{
+ /* If this is an URL emit SIGNAL_DROP_URIS, otherwise chain up the
+ * signal.
+ */
+ switch (info)
+ {
+ case TARGET_URI_LIST:
+ {
+ gchar **uri_list;
+
+ uri_list = gedit_utils_drop_get_uris (selection_data);
+
+ if (uri_list != NULL)
+ {
+ g_signal_emit (widget, signals[SIGNAL_DROP_URIS], 0, uri_list);
+ g_strfreev (uri_list);
+
+ gtk_drag_finish (context, TRUE, FALSE, timestamp);
+ }
+
+ break;
+
+ }
+ case TARGET_XDNDDIRECTSAVE:
+ {
+ GeditView *view;
+
+ view = GEDIT_VIEW (widget);
+
+ /* Indicate that we don't provide "F" fallback */
+ if (gtk_selection_data_get_format (selection_data) == 8 &&
+ gtk_selection_data_get_length (selection_data) == 1 &&
+ gtk_selection_data_get_data (selection_data)[0] == 'F')
+ {
+ gdk_property_change (gdk_drag_context_get_source_window (context),
+ gdk_atom_intern ("XdndDirectSave0", FALSE),
+ gdk_atom_intern ("text/plain", FALSE), 8,
+ GDK_PROP_MODE_REPLACE, (const guchar *) "", 0);
+ }
+ else if (gtk_selection_data_get_format (selection_data) == 8 &&
+ gtk_selection_data_get_length (selection_data) == 1 &&
+ gtk_selection_data_get_data (selection_data)[0] == 'S' &&
+ view->priv->direct_save_uri != NULL)
+ {
+ gchar **uris;
+
+ uris = g_new (gchar *, 2);
+ uris[0] = view->priv->direct_save_uri;
+ uris[1] = NULL;
+ g_signal_emit (widget, signals[SIGNAL_DROP_URIS], 0, uris);
+ g_free (uris);
+ }
+
+ g_free (view->priv->direct_save_uri);
+ view->priv->direct_save_uri = NULL;
+
+ gtk_drag_finish (context, TRUE, FALSE, timestamp);
+
+ break;
+ }
+ default:
+ {
+ GTK_WIDGET_CLASS (gedit_view_parent_class)->drag_data_received (widget,
+ context,
+ x, y,
+ selection_data,
+ info,
+ timestamp);
+ break;
+ }
+ }
+}
+
+static gboolean
+gedit_view_drag_drop (GtkWidget *widget,
+ GdkDragContext *context,
+ gint x,
+ gint y,
+ guint timestamp)
+{
+ gboolean drop_zone;
+ GdkAtom target;
+ guint info;
+ gboolean found;
+ GtkTargetList *target_list;
+
+ target_list = gtk_drag_dest_get_target_list (widget);
+ target = gtk_drag_dest_find_target (widget, context, target_list);
+ found = gtk_target_list_find (target_list, target, &info);
+
+ if (found && (info == TARGET_URI_LIST || info == TARGET_XDNDDIRECTSAVE))
+ {
+ if (info == TARGET_XDNDDIRECTSAVE)
+ {
+ gchar *uri;
+ uri = gedit_utils_set_direct_save_filename (context);
+
+ if (uri != NULL)
+ {
+ GeditView *view = GEDIT_VIEW (widget);
+ g_free (view->priv->direct_save_uri);
+ view->priv->direct_save_uri = uri;
+ }
+ }
+
+ gtk_drag_get_data (widget, context, target, timestamp);
+ drop_zone = TRUE;
+ }
+ else
+ {
+ /* Chain up */
+ drop_zone = GTK_WIDGET_CLASS (gedit_view_parent_class)->drag_drop (widget,
+ context,
+ x, y,
+ timestamp);
+ }
+
+ return drop_zone;
+}
+
+static void
+extension_added (PeasExtensionSet *extensions,
+ PeasPluginInfo *info,
+ PeasExtension *exten,
+ GeditView *view)
+{
+ gedit_view_activatable_activate (GEDIT_VIEW_ACTIVATABLE (exten));
+}
+
+static void
+extension_removed (PeasExtensionSet *extensions,
+ PeasPluginInfo *info,
+ PeasExtension *exten,
+ GeditView *view)
+{
+ gedit_view_activatable_deactivate (GEDIT_VIEW_ACTIVATABLE (exten));
+}
+
+static void
+gedit_view_realize (GtkWidget *widget)
+{
+ GeditView *view = GEDIT_VIEW (widget);
+
+ GTK_WIDGET_CLASS (gedit_view_parent_class)->realize (widget);
+
+ g_signal_connect (view->priv->extensions,
+ "extension-added",
+ G_CALLBACK (extension_added),
+ view);
+
+ g_signal_connect (view->priv->extensions,
+ "extension-removed",
+ G_CALLBACK (extension_removed),
+ view);
+
+ /* We only activate the extensions when the view is realized,
+ * because most plugins will expect this behaviour, and we won't
+ * change the buffer later anyway.
+ */
+ peas_extension_set_foreach (view->priv->extensions,
+ (PeasExtensionSetForeachFunc) extension_added,
+ view);
+}
+
+static void
+gedit_view_unrealize (GtkWidget *widget)
+{
+ GeditView *view = GEDIT_VIEW (widget);
+
+ g_signal_handlers_disconnect_by_func (view->priv->extensions, extension_added, view);
+ g_signal_handlers_disconnect_by_func (view->priv->extensions, extension_removed, view);
+
+ /* We need to deactivate the extension on unrealize because it is not
+ * mandatory that a view has been realized when we dispose it, leading
+ * to deactivating the plugin without being activated.
+ */
+ peas_extension_set_foreach (view->priv->extensions,
+ (PeasExtensionSetForeachFunc) extension_removed,
+ view);
+
+ GTK_WIDGET_CLASS (gedit_view_parent_class)->unrealize (widget);
+}
+
+static GtkTextBuffer *
+gedit_view_create_buffer (GtkTextView *text_view)
+{
+ return GTK_TEXT_BUFFER (gedit_document_new ());
+}
+
+static void
+gedit_view_class_init (GeditViewClass *klass)
+{
+ GObjectClass *object_class = G_OBJECT_CLASS (klass);
+ GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
+ GtkTextViewClass *text_view_class = GTK_TEXT_VIEW_CLASS (klass);
+ GtkBindingSet *binding_set;
+
+ object_class->dispose = gedit_view_dispose;
+ object_class->constructed = gedit_view_constructed;
+
+ /* Override the gtk_text_view_drag_motion and drag_drop
+ * functions to get URIs
+ *
+ * If the mime type is text/uri-list, then we will accept
+ * the potential drop, or request the data (depending on the
+ * function).
+ *
+ * If the drag context has any other mime type, then pass the
+ * information onto the GtkTextView's standard handlers.
+ *
+ * See bug #89881 for details
+ */
+ widget_class->drag_motion = gedit_view_drag_motion;
+ widget_class->drag_data_received = gedit_view_drag_data_received;
+ widget_class->drag_drop = gedit_view_drag_drop;
+
+ widget_class->realize = gedit_view_realize;
+ widget_class->unrealize = gedit_view_unrealize;
+
+ text_view_class->create_buffer = gedit_view_create_buffer;
+
+ /**
+ * GeditView::drop-uris:
+ * @view: a #GeditView.
+ * @uri_list: a %NULL-terminated list of URIs.
+ *
+ * The #GeditView::drop-uris signal allows plugins to intercept the
+ * default drag-and-drop behaviour of 'text/uri-list'. #GeditView
+ * handles drag-and-drop in the default handlers of
+ * #GtkWidget::drag-drop, #GtkWidget::drag-motion and
+ * #GtkWidget::drag-data-received. The view emits the
+ * #GeditView::drop-uris signal from #GtkWidget::drag-data-received if
+ * valid URIs have been dropped. Plugins should connect to
+ * #GtkWidget::drag-motion, #GtkWidget::drag-drop and
+ * #GtkWidget::drag-data-received to change this default behaviour. They
+ * should NOT use this signal because this will not prevent gedit from
+ * loading the URI.
+ */
+ signals[SIGNAL_DROP_URIS] =
+ g_signal_new ("drop-uris",
+ G_TYPE_FROM_CLASS (object_class),
+ G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
+ G_STRUCT_OFFSET (GeditViewClass, drop_uris),
+ NULL, NULL, NULL,
+ G_TYPE_NONE, 1, G_TYPE_STRV);
+
+ /* FIXME: some of these bindings - especially for the "change-case" -
+ * could be moved to a plugin that enables more advanced keyboard
+ * shortcuts. Enabling too many keyboard shortcuts by default makes the
+ * user experience worse, because when mistyping a key it could trigger
+ * an unknown/unexpected action, so it's a bit a WTF moment for the
+ * user. gedit must not become like Emacs or Vim. More advanced stuff
+ * are put in plugins. Also, the "change-case" is available in the
+ * right-click menu, so it's already easily accessible.
+ */
+ binding_set = gtk_binding_set_by_class (klass);
+
+ gtk_binding_entry_add_signal (binding_set,
+ GDK_KEY_d,
+ GDK_CONTROL_MASK,
+ "delete-from-cursor", 2,
+ G_TYPE_ENUM, GTK_DELETE_PARAGRAPHS,
+ G_TYPE_INT, 1);
+
+ gtk_binding_entry_add_signal (binding_set,
+ GDK_KEY_u,
+ GDK_CONTROL_MASK,
+ "change-case", 1,
+ G_TYPE_ENUM, GTK_SOURCE_CHANGE_CASE_UPPER);
+
+ gtk_binding_entry_add_signal (binding_set,
+ GDK_KEY_l,
+ GDK_CONTROL_MASK,
+ "change-case", 1,
+ G_TYPE_ENUM, GTK_SOURCE_CHANGE_CASE_LOWER);
+
+ gtk_binding_entry_add_signal (binding_set,
+ GDK_KEY_asciitilde,
+ GDK_CONTROL_MASK,
+ "change-case", 1,
+ G_TYPE_ENUM, GTK_SOURCE_CHANGE_CASE_TOGGLE);
+}
+
+/**
+ * gedit_view_new:
+ * @doc: a #GeditDocument
+ *
+ * Creates a new #GeditView object displaying the @doc document.
+ * @doc cannot be %NULL.
+ *
+ * Returns: a new #GeditView.
+ */
+GtkWidget *
+gedit_view_new (GeditDocument *doc)
+{
+ g_return_val_if_fail (GEDIT_IS_DOCUMENT (doc), NULL);
+
+ return g_object_new (GEDIT_TYPE_VIEW,
+ "buffer", doc,
+ NULL);
+}
+
+/* ex:set ts=8 noet: */
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