/*
* 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 .
*/
#include "gedit-view.h"
#include
#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: */