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medit/moo/mooedit/mootextpopup.c

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/*
* mootextpopup.c
*
* Copyright (C) 2004-2006 by Yevgen Muntyan <muntyan@math.tamu.edu>
*
* 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.
*
* See COPYING file that comes with this distribution.
*/
#include "mooedit/mootextpopup.h"
#include "mooutils/moomarshals.h"
#include <gtk/gtk.h>
#include <gdk/gdkkeysyms.h>
#define MAX_POPUP_LEN 10
#define MIN_POPUP_WIDTH 100
struct _MooTextPopupPrivate {
GtkTreeView *treeview;
GtkTreeSelection *selection;
GtkTreeViewColumn *column;
GtkTreeModel *model;
GtkTextView *doc;
GtkTextBuffer *buffer;
GtkTextMark *pos;
int max_len;
guint hide_on_activate : 1;
GtkWidget *window;
GtkScrolledWindow *scrolled_window;
guint visible : 1;
guint in_resize : 1;
};
static void moo_text_popup_set_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec);
static void moo_text_popup_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec);
static void moo_text_popup_dispose (GObject *object);
static void moo_text_popup_show_real (MooTextPopup *popup);
static void moo_text_popup_hide_real (MooTextPopup *popup);
static gboolean moo_text_popup_key_press (MooTextPopup *popup,
GdkEventKey *event);
static void moo_text_popup_ensure_popup (MooTextPopup *popup);
static gboolean moo_text_popup_empty (MooTextPopup *popup);
static void moo_text_popup_resize (MooTextPopup *popup);
static void moo_text_popup_connect (MooTextPopup *popup);
static void moo_text_popup_disconnect (MooTextPopup *popup);
static void moo_text_popup_emit_changed (MooTextPopup *popup);
static void moo_text_popup_select_first (MooTextPopup *popup);
G_DEFINE_TYPE (MooTextPopup, moo_text_popup, G_TYPE_OBJECT)
enum {
SHOW,
HIDE,
ACTIVATE,
TEXT_CHANGED,
KEY_PRESS_EVENT,
N_SIGNALS
};
enum {
PROP_0,
PROP_HIDE_ON_ACTIVATE,
PROP_MAX_LEN,
PROP_POSITION,
PROP_DOC,
PROP_MODEL
};
static guint signals[N_SIGNALS];
static void
moo_text_popup_dispose (GObject *object)
{
MooTextPopup *popup = MOO_TEXT_POPUP (object);
if (popup->priv)
{
moo_text_popup_hide (popup);
moo_text_popup_set_doc (popup, NULL);
moo_text_popup_set_model (popup, NULL);
if (popup->priv->window)
gtk_widget_destroy (popup->priv->window);
popup->priv = NULL;
}
G_OBJECT_CLASS(moo_text_popup_parent_class)->dispose (object);
}
static void
moo_text_popup_class_init (MooTextPopupClass *klass)
{
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
gobject_class->dispose = moo_text_popup_dispose;
gobject_class->set_property = moo_text_popup_set_property;
gobject_class->get_property = moo_text_popup_get_property;
klass->show = moo_text_popup_show_real;
klass->hide = moo_text_popup_hide_real;
klass->key_press_event = moo_text_popup_key_press;
g_type_class_add_private (klass, sizeof (MooTextPopupPrivate));
g_object_class_install_property (gobject_class,
PROP_HIDE_ON_ACTIVATE,
g_param_spec_boolean ("hide-on-activate",
"hide-on-activate",
"hide-on-activate",
TRUE,
G_PARAM_READWRITE));
g_object_class_install_property (gobject_class,
PROP_MAX_LEN,
g_param_spec_int ("max-len",
"max-len",
"max-len",
1, G_MAXINT, MAX_POPUP_LEN,
G_PARAM_READWRITE));
g_object_class_install_property (gobject_class,
PROP_POSITION,
g_param_spec_boxed ("position",
"position",
"position",
GTK_TYPE_TEXT_ITER,
G_PARAM_READWRITE));
g_object_class_install_property (gobject_class,
PROP_DOC,
g_param_spec_object ("doc",
"doc",
"doc",
GTK_TYPE_TEXT_VIEW,
G_PARAM_READWRITE));
g_object_class_install_property (gobject_class,
PROP_MODEL,
g_param_spec_object ("model",
"model",
"model",
GTK_TYPE_TREE_MODEL,
G_PARAM_READWRITE));
signals[SHOW] =
g_signal_new ("show",
G_OBJECT_CLASS_TYPE (klass),
G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (MooTextPopupClass, show),
NULL, NULL,
_moo_marshal_VOID__VOID,
G_TYPE_NONE, 0);
signals[HIDE] =
g_signal_new ("hide",
G_OBJECT_CLASS_TYPE (klass),
G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (MooTextPopupClass, hide),
NULL, NULL,
_moo_marshal_VOID__VOID,
G_TYPE_NONE, 0);
signals[ACTIVATE] =
g_signal_new ("activate",
G_OBJECT_CLASS_TYPE (klass),
G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (MooTextPopupClass, activate),
NULL, NULL,
_moo_marshal_VOID__OBJECT_BOXED,
G_TYPE_NONE, 2,
GTK_TYPE_TREE_MODEL,
GTK_TYPE_TREE_ITER);
signals[TEXT_CHANGED] =
g_signal_new ("text-changed",
G_OBJECT_CLASS_TYPE (klass),
G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (MooTextPopupClass, text_changed),
NULL, NULL,
_moo_marshal_VOID__VOID,
G_TYPE_NONE, 0);
signals[KEY_PRESS_EVENT] =
g_signal_new ("key-press-event",
G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (MooTextPopupClass, key_press_event),
g_signal_accumulator_true_handled, NULL,
_moo_marshal_BOOLEAN__BOXED,
G_TYPE_BOOLEAN, 1,
GDK_TYPE_EVENT | G_SIGNAL_TYPE_STATIC_SCOPE);
}
static void
moo_text_popup_init (MooTextPopup *popup)
{
popup->priv = G_TYPE_INSTANCE_GET_PRIVATE (popup, MOO_TYPE_TEXT_POPUP, MooTextPopupPrivate);
popup->column = popup->priv->column = gtk_tree_view_column_new ();
popup->priv->max_len = MAX_POPUP_LEN;
popup->priv->hide_on_activate = TRUE;
}
static void
moo_text_popup_ensure_popup (MooTextPopup *popup)
{
if (!popup->priv->window)
{
GtkWidget *scrolled_window, *frame;
popup->priv->window = gtk_window_new (GTK_WINDOW_POPUP);
gtk_window_set_default_size (GTK_WINDOW (popup->priv->window), 1, 1);
gtk_widget_add_events (popup->priv->window, GDK_KEY_PRESS_MASK | GDK_BUTTON_PRESS_MASK);
scrolled_window = gtk_scrolled_window_new (NULL, NULL);
popup->priv->scrolled_window = GTK_SCROLLED_WINDOW (scrolled_window);
gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (scrolled_window),
GTK_POLICY_NEVER, GTK_POLICY_AUTOMATIC);
gtk_scrolled_window_set_shadow_type (GTK_SCROLLED_WINDOW (scrolled_window),
GTK_SHADOW_NONE);
/* a nasty hack to get the completions treeview to size nicely */
gtk_widget_set_size_request (GTK_SCROLLED_WINDOW (scrolled_window)->vscrollbar, -1, 0);
frame = gtk_frame_new (NULL);
gtk_frame_set_shadow_type (GTK_FRAME (frame), GTK_SHADOW_OUT);
gtk_container_add (GTK_CONTAINER (frame), scrolled_window);
gtk_container_add (GTK_CONTAINER (popup->priv->window), frame);
popup->priv->treeview = GTK_TREE_VIEW (gtk_tree_view_new ());
gtk_container_add (GTK_CONTAINER (scrolled_window),
GTK_WIDGET (popup->priv->treeview));
gtk_tree_view_set_headers_visible (popup->priv->treeview, FALSE);
gtk_tree_view_append_column (popup->priv->treeview,
popup->priv->column);
#if GTK_CHECK_VERSION(2,6,0)
gtk_tree_view_set_hover_selection (popup->priv->treeview, TRUE);
#endif
gtk_widget_show_all (frame);
popup->priv->selection = gtk_tree_view_get_selection (popup->priv->treeview);
gtk_tree_selection_set_mode (popup->priv->selection, GTK_SELECTION_SINGLE);
if (popup->priv->model)
gtk_tree_view_set_model (popup->priv->treeview, popup->priv->model);
}
}
gboolean
moo_text_popup_show (MooTextPopup *popup,
const GtkTextIter *where)
{
g_return_val_if_fail (MOO_IS_TEXT_POPUP (popup), FALSE);
g_return_val_if_fail (where != NULL || popup->priv->pos != NULL, FALSE);
g_return_val_if_fail (popup->priv->doc != NULL, FALSE);
g_return_val_if_fail (popup->priv->model != NULL, FALSE);
moo_text_popup_set_position (popup, where);
if (!popup->priv->visible)
g_signal_emit (popup, signals[SHOW], 0);
return popup->priv->visible != 0;
}
void
moo_text_popup_update (MooTextPopup *popup)
{
g_return_if_fail (MOO_IS_TEXT_POPUP (popup));
if (!popup->priv->visible || popup->priv->in_resize)
return;
popup->priv->in_resize = TRUE;
if (moo_text_popup_empty (popup))
{
moo_text_popup_hide (popup);
}
else
{
moo_text_popup_resize (popup);
if (!moo_text_popup_get_selected (popup, NULL))
moo_text_popup_select_first (popup);
}
popup->priv->in_resize = FALSE;
}
void
moo_text_popup_hide (MooTextPopup *popup)
{
g_return_if_fail (MOO_IS_TEXT_POPUP (popup));
if (popup->priv->visible)
g_signal_emit (popup, signals[HIDE], 0);
}
void
moo_text_popup_activate (MooTextPopup *popup)
{
GtkTreeIter iter;
gboolean got_selected;
g_return_if_fail (MOO_IS_TEXT_POPUP (popup));
g_return_if_fail (popup->priv->visible);
got_selected = gtk_tree_selection_get_selected (popup->priv->selection, NULL, &iter);
if (got_selected)
g_signal_emit (popup, signals[ACTIVATE], 0, popup->priv->model, &iter);
if (popup->priv->hide_on_activate)
moo_text_popup_hide (popup);
}
static gboolean
moo_text_popup_empty (MooTextPopup *popup)
{
return !popup->priv->model ||
gtk_tree_model_iter_n_children (popup->priv->model, NULL) == 0;
}
static void
moo_text_popup_show_real (MooTextPopup *popup)
{
GtkWidget *toplevel, *doc;
g_return_if_fail (popup->priv->doc != NULL);
g_return_if_fail (GTK_WIDGET_REALIZED (popup->priv->doc));
if (popup->priv->visible || moo_text_popup_empty (popup))
return;
moo_text_popup_ensure_popup (popup);
doc = GTK_WIDGET (popup->priv->doc);
toplevel = gtk_widget_get_toplevel (doc);
g_return_if_fail (GTK_IS_WINDOW (toplevel));
gtk_widget_realize (popup->priv->window);
if (doc->style)
{
gtk_widget_modify_font (GTK_WIDGET (popup->priv->treeview),
doc->style->font_desc);
gtk_widget_modify_base (GTK_WIDGET (popup->priv->treeview),
GTK_STATE_NORMAL, &doc->style->base[GTK_STATE_NORMAL]);
gtk_widget_modify_base (GTK_WIDGET (popup->priv->treeview),
GTK_STATE_SELECTED, &doc->style->base[GTK_STATE_SELECTED]);
gtk_widget_modify_text (GTK_WIDGET (popup->priv->treeview),
GTK_STATE_NORMAL, &doc->style->text[GTK_STATE_NORMAL]);
gtk_widget_modify_text (GTK_WIDGET (popup->priv->treeview),
GTK_STATE_SELECTED, &doc->style->text[GTK_STATE_SELECTED]);
}
if (GTK_WINDOW (toplevel)->group)
gtk_window_group_add_window (GTK_WINDOW (toplevel)->group,
GTK_WINDOW (popup->priv->window));
gtk_window_set_modal (GTK_WINDOW (popup->priv->window), TRUE);
moo_text_popup_resize (popup);
gtk_widget_show (popup->priv->window);
popup->priv->visible = TRUE;
gtk_widget_ensure_style (GTK_WIDGET (popup->priv->treeview));
gtk_widget_modify_bg (GTK_WIDGET (popup->priv->treeview), GTK_STATE_ACTIVE,
&GTK_WIDGET(popup->priv->treeview)->style->base[GTK_STATE_SELECTED]);
gtk_widget_modify_base (GTK_WIDGET (popup->priv->treeview), GTK_STATE_ACTIVE,
&GTK_WIDGET(popup->priv->treeview)->style->base[GTK_STATE_SELECTED]);
gtk_grab_add (popup->priv->window);
gdk_pointer_grab (popup->priv->window->window, TRUE,
GDK_BUTTON_PRESS_MASK |
GDK_BUTTON_RELEASE_MASK |
GDK_POINTER_MOTION_MASK,
NULL, NULL, GDK_CURRENT_TIME);
if (!moo_text_popup_get_selected (popup, NULL))
moo_text_popup_select_first (popup);
moo_text_popup_connect (popup);
}
static void
moo_text_popup_hide_real (MooTextPopup *popup)
{
if (popup->priv->visible)
{
popup->priv->visible = FALSE;
moo_text_popup_disconnect (popup);
gdk_pointer_ungrab (GDK_CURRENT_TIME);
gtk_grab_remove (popup->priv->window);
gtk_widget_hide (popup->priv->window);
}
}
static void
moo_text_popup_resize (MooTextPopup *popup)
{
GtkWidget *widget = GTK_WIDGET (popup->priv->doc);
int x, y, width;
int total_items, items, height;
GdkScreen *screen;
int monitor_num;
GdkRectangle monitor, iter_rect;
GtkRequisition popup_req;
int vert_separator;
GtkTextIter iter;
g_return_if_fail (GTK_WIDGET_REALIZED (widget));
g_return_if_fail (popup->priv->pos);
moo_text_popup_get_position (popup, &iter);
gtk_text_view_get_iter_location (popup->priv->doc, &iter, &iter_rect);
gtk_text_view_buffer_to_window_coords (popup->priv->doc, GTK_TEXT_WINDOW_WIDGET,
iter_rect.x, iter_rect.y,
&iter_rect.x, &iter_rect.y);
gdk_window_get_origin (widget->window, &x, &y);
x += iter_rect.x;
y += iter_rect.y;
total_items = gtk_tree_model_iter_n_children (popup->priv->model, NULL);
items = MIN (total_items, popup->priv->max_len);
gtk_tree_view_column_cell_get_size (popup->priv->column, NULL,
NULL, NULL, &width, &height);
screen = gtk_widget_get_screen (widget);
monitor_num = gdk_screen_get_monitor_at_window (screen, widget->window);
gdk_screen_get_monitor_geometry (screen, monitor_num, &monitor);
gtk_widget_style_get (GTK_WIDGET (popup->priv->treeview),
"vertical-separator", &vert_separator,
NULL);
width = MAX (width, MIN_POPUP_WIDTH);
width = MIN (monitor.width, width);
gtk_widget_set_size_request (GTK_WIDGET (popup->priv->treeview),
-1, items * (height + vert_separator));
if (total_items > items)
gtk_scrolled_window_set_policy (popup->priv->scrolled_window,
GTK_POLICY_NEVER, GTK_POLICY_ALWAYS);
else
gtk_scrolled_window_set_policy (popup->priv->scrolled_window,
GTK_POLICY_NEVER, GTK_POLICY_NEVER);
gtk_widget_size_request (popup->priv->window, &popup_req);
if (x < monitor.x)
x = monitor.x;
else if (x + popup_req.width > monitor.x + monitor.width)
x = monitor.x + monitor.width - popup_req.width;
if (y + iter_rect.height + popup_req.height <= monitor.y + monitor.height)
y += iter_rect.height;
else
y -= popup_req.height;
{
int old_width, old_height;
gtk_window_get_size (GTK_WINDOW (popup->priv->window),
&old_width, &old_height);
if (old_width != popup_req.width || old_height != popup_req.height)
{
gtk_window_resize (GTK_WINDOW (popup->priv->window),
popup_req.width, popup_req.height);
}
}
{
int old_x, old_y;
gdk_window_get_origin (popup->priv->window->window, &old_x, &old_y);
if (old_x != x || old_y != y)
gtk_window_move (GTK_WINDOW (popup->priv->window), x, y);
}
}
void
moo_text_popup_set_doc (MooTextPopup *popup,
GtkTextView *doc)
{
g_return_if_fail (MOO_IS_TEXT_POPUP (popup));
g_return_if_fail (!doc || GTK_IS_TEXT_VIEW (doc));
if (popup->priv->doc == doc)
return;
moo_text_popup_hide (popup);
if (popup->priv->doc)
{
if (popup->priv->pos)
{
gtk_text_buffer_delete_mark (popup->priv->buffer, popup->priv->pos);
popup->priv->pos = NULL;
}
g_object_unref (popup->priv->buffer);
g_object_unref (popup->priv->doc);
popup->priv->doc = NULL;
popup->priv->buffer = NULL;
}
if (doc)
{
popup->priv->doc = g_object_ref (doc);
popup->priv->buffer = g_object_ref (gtk_text_view_get_buffer (doc));
}
g_object_notify (G_OBJECT (popup), "doc");
}
GtkTextView *
moo_text_popup_get_doc (MooTextPopup *popup)
{
g_return_val_if_fail (MOO_IS_TEXT_POPUP (popup), NULL);
return popup->priv->doc;
}
void
moo_text_popup_set_model (MooTextPopup *popup,
GtkTreeModel *model)
{
g_return_if_fail (MOO_IS_TEXT_POPUP (popup));
g_return_if_fail (!model || GTK_IS_TREE_MODEL (model));
if (model == popup->priv->model)
return;
if (popup->priv->model)
g_object_unref (popup->priv->model);
popup->priv->model = model ? g_object_ref (model) : NULL;
if (popup->priv->treeview)
{
gtk_tree_view_set_model (popup->priv->treeview, model);
moo_text_popup_update (popup);
}
g_object_notify (G_OBJECT (popup), "model");
}
GtkTreeModel *
moo_text_popup_get_model (MooTextPopup *popup)
{
g_return_val_if_fail (MOO_IS_TEXT_POPUP (popup), NULL);
return popup->priv->model;
}
gboolean
moo_text_popup_get_position (MooTextPopup *popup,
GtkTextIter *iter)
{
g_return_val_if_fail (MOO_IS_TEXT_POPUP (popup), FALSE);
if (popup->priv->pos)
{
if (iter)
gtk_text_buffer_get_iter_at_mark (popup->priv->buffer, iter,
popup->priv->pos);
return TRUE;
}
return FALSE;
}
void
moo_text_popup_set_position (MooTextPopup *popup,
const GtkTextIter *where)
{
g_return_if_fail (MOO_IS_TEXT_POPUP (popup));
g_return_if_fail (where);
g_return_if_fail (popup->priv->buffer != NULL);
if (!popup->priv->pos)
{
popup->priv->pos =
gtk_text_buffer_create_mark (popup->priv->buffer,
NULL, where, TRUE);
}
else
{
gtk_text_buffer_move_mark (popup->priv->buffer,
popup->priv->pos, where);
}
moo_text_popup_update (popup);
}
/***************************************************************************/
/* Popup events
*/
static gboolean
doc_focus_out (MooTextPopup *popup)
{
moo_text_popup_hide (popup);
return FALSE;
}
static gboolean
popup_button_press (MooTextPopup *popup,
GdkEventButton *event)
{
if (event->window == popup->priv->window->window)
{
int width, height;
gdk_drawable_get_size (GDK_DRAWABLE (event->window),
&width, &height);
if (event->x < 0 || event->x >= width ||
event->y < 0 || event->y >= height)
{
moo_text_popup_hide (popup);
}
return TRUE;
}
else
{
moo_text_popup_hide (popup);
return FALSE;
}
}
static void
popup_move_selection (MooTextPopup *popup,
GdkEventKey *event)
{
int n_items, current_item, new_item = -1;
GtkTreeIter iter;
GtkTreeModel *model;
n_items = gtk_tree_model_iter_n_children (popup->priv->model, NULL);
g_return_if_fail (n_items != 0);
if (gtk_tree_selection_get_selected (popup->priv->selection, &model, &iter))
{
GtkTreePath *path = gtk_tree_model_get_path (model, &iter);
current_item = gtk_tree_path_get_indices (path) [0];
gtk_tree_path_free (path);
}
else
{
current_item = -1;
}
switch (event->keyval)
{
case GDK_Page_Down:
case GDK_KP_Page_Down:
new_item = current_item + popup->priv->max_len - 1;
if (new_item >= n_items)
new_item = n_items - 1;
break;
case GDK_Page_Up:
case GDK_KP_Page_Up:
new_item = current_item - popup->priv->max_len + 1;
if (new_item < 0)
new_item = 0;
break;
case GDK_Tab:
case GDK_KP_Tab:
case GDK_Down:
case GDK_KP_Down:
if (current_item < n_items - 1)
new_item = current_item + 1;
else
new_item = 0;
break;
case GDK_ISO_Left_Tab:
case GDK_Up:
case GDK_KP_Up:
if (current_item <= 0)
new_item = n_items - 1;
else
new_item = current_item - 1;
break;
default:
g_return_if_reached ();
}
if (new_item >= 0 && new_item < n_items)
{
GtkTreePath *path = gtk_tree_path_new_from_indices (new_item, -1);
gtk_tree_view_set_cursor (popup->priv->treeview, path, NULL, FALSE);
gtk_tree_view_scroll_to_cell (popup->priv->treeview, path, NULL, FALSE, 0, 0);
gtk_tree_path_free (path);
}
else
{
gtk_tree_selection_unselect_all (popup->priv->selection);
}
}
static gboolean
popup_key_press (MooTextPopup *popup,
GdkEventKey *event)
{
gboolean retval;
g_signal_emit (popup, signals[KEY_PRESS_EVENT], 0, event, &retval);
return retval;
}
static gboolean
moo_text_popup_key_press (MooTextPopup *popup,
GdkEventKey *event)
{
switch (event->keyval)
{
case GDK_Tab:
case GDK_KP_Tab:
case GDK_Down:
case GDK_Up:
case GDK_KP_Down:
case GDK_KP_Up:
case GDK_Page_Down:
case GDK_Page_Up:
case GDK_ISO_Left_Tab:
popup_move_selection (popup, event);
return TRUE;
case GDK_Escape:
moo_text_popup_hide (popup);
return TRUE;
case GDK_Return:
case GDK_ISO_Enter:
case GDK_KP_Enter:
moo_text_popup_activate (popup);
return TRUE;
default:
return gtk_widget_event (GTK_WIDGET (popup->priv->doc), (GdkEvent*) event);
}
}
static gboolean
list_button_press (MooTextPopup *popup,
GdkEventButton *event)
{
GtkTreePath *path;
GtkTreeIter iter;
if (gtk_tree_view_get_path_at_pos (popup->priv->treeview,
event->x, event->y,
&path, NULL, NULL, NULL))
{
gtk_tree_model_get_iter (popup->priv->model, &iter, path);
gtk_tree_selection_select_iter (popup->priv->selection, &iter);
moo_text_popup_activate (popup);
gtk_tree_path_free (path);
return TRUE;
}
return FALSE;
}
#define popup_get_cursor(popup, iter) \
gtk_text_buffer_get_iter_at_mark (popup->priv->buffer, iter, \
gtk_text_buffer_get_insert (popup->priv->buffer))
static void
buffer_delete_range (MooTextPopup *popup,
GtkTextIter *start,
GtkTextIter *end)
{
GtkTextIter iter;
int offset;
if (gtk_text_iter_compare (start, end) > 0)
{
GtkTextIter *tmp = start;
start = end;
end = tmp;
}
popup_get_cursor (popup, &iter);
if (gtk_text_iter_compare (&iter, end))
goto hide;
offset = gtk_text_iter_get_offset (end) - gtk_text_iter_get_offset (start);
if (ABS (offset) > 1)
goto hide;
return;
hide:
moo_text_popup_hide (popup);
}
static void
buffer_insert_text (MooTextPopup *popup,
GtkTextIter *iter,
const char *text,
int len)
{
GtkTextIter cursor;
gunichar ch;
popup_get_cursor (popup, &cursor);
if (gtk_text_iter_compare (&cursor, iter))
goto hide;
if (len < 0)
len = g_utf8_strlen (text, -1);
if (len > 1)
goto hide;
ch = g_utf8_get_char (text);
if (g_unichar_isspace (ch))
{
switch (ch)
{
case ' ':
case '\t':
break;
default:
goto hide;
}
}
return;
hide:
moo_text_popup_hide (popup);
}
static gboolean
popup_expose (MooTextPopup *popup)
{
moo_text_popup_resize (popup);
return FALSE;
}
static void
moo_text_popup_connect (MooTextPopup *popup)
{
g_return_if_fail (popup->priv->doc && popup->priv->treeview && popup->priv->window);
g_signal_connect_swapped (popup->priv->doc, "focus-out-event",
G_CALLBACK (doc_focus_out), popup);
g_signal_connect_swapped (popup->priv->window, "button-press-event",
G_CALLBACK (popup_button_press), popup);
g_signal_connect_swapped (popup->priv->window, "key-press-event",
G_CALLBACK (popup_key_press), popup);
g_signal_connect_swapped (popup->priv->window, "expose-event",
G_CALLBACK (popup_expose), popup);
g_signal_connect_swapped (popup->priv->treeview, "button-press-event",
G_CALLBACK (list_button_press), popup);
g_signal_connect_swapped (popup->priv->buffer, "delete-range",
G_CALLBACK (buffer_delete_range), popup);
g_signal_connect_swapped (popup->priv->buffer, "insert-text",
G_CALLBACK (buffer_insert_text), popup);
g_signal_connect_data (popup->priv->buffer, "delete-range",
G_CALLBACK (moo_text_popup_emit_changed), popup,
NULL, G_CONNECT_AFTER | G_CONNECT_SWAPPED);
g_signal_connect_data (popup->priv->buffer, "insert-text",
G_CALLBACK (moo_text_popup_emit_changed), popup,
NULL, G_CONNECT_AFTER | G_CONNECT_SWAPPED);
}
static void
moo_text_popup_disconnect (MooTextPopup *popup)
{
g_signal_handlers_disconnect_by_func (popup->priv->doc,
(gpointer) doc_focus_out,
popup);
g_signal_handlers_disconnect_by_func (popup->priv->window,
(gpointer) popup_button_press,
popup);
g_signal_handlers_disconnect_by_func (popup->priv->window,
(gpointer) popup_key_press,
popup);
g_signal_handlers_disconnect_by_func (popup->priv->window,
(gpointer) popup_expose,
popup);
g_signal_handlers_disconnect_by_func (popup->priv->treeview,
(gpointer) list_button_press,
popup);
g_signal_handlers_disconnect_by_func (popup->priv->buffer,
(gpointer) buffer_delete_range,
popup);
g_signal_handlers_disconnect_by_func (popup->priv->buffer,
(gpointer) buffer_insert_text,
popup);
g_signal_handlers_disconnect_by_func (popup->priv->buffer,
(gpointer) moo_text_popup_emit_changed,
popup);
}
static void
moo_text_popup_emit_changed (MooTextPopup *popup)
{
g_signal_emit (popup, signals[TEXT_CHANGED], 0);
}
MooTextPopup *
moo_text_popup_new (GtkTextView *doc)
{
g_return_val_if_fail (!doc || GTK_IS_TEXT_VIEW (doc), NULL);
return g_object_new (MOO_TYPE_TEXT_POPUP, "doc", doc, NULL);
}
static void
moo_text_popup_set_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec)
{
MooTextPopup *popup = MOO_TEXT_POPUP (object);
switch (prop_id)
{
case PROP_HIDE_ON_ACTIVATE:
popup->priv->hide_on_activate = g_value_get_boolean (value) != 0;
g_object_notify (object, "hide-on-activate");
break;
case PROP_MAX_LEN:
popup->priv->max_len = g_value_get_int (value);
g_object_notify (object, "max-len");
break;
case PROP_POSITION:
moo_text_popup_set_position (popup, g_value_get_boxed (value));
break;
case PROP_DOC:
moo_text_popup_set_doc (popup, g_value_get_object (value));
break;
case PROP_MODEL:
moo_text_popup_set_model (popup, g_value_get_object (value));
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
}
}
static void
moo_text_popup_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec)
{
MooTextPopup *popup = MOO_TEXT_POPUP (object);
GtkTextIter iter;
switch (prop_id)
{
case PROP_HIDE_ON_ACTIVATE:
g_value_set_boolean (value, popup->priv->hide_on_activate != 0);
break;
case PROP_MAX_LEN:
g_value_set_int (value, popup->priv->max_len);
break;
case PROP_POSITION:
if (moo_text_popup_get_position (popup, &iter))
g_value_set_boxed (value, &iter);
else
g_value_set_boxed (value, NULL);
break;
case PROP_DOC:
g_value_set_object (value, popup->priv->doc);
break;
case PROP_MODEL:
g_value_set_object (value, popup->priv->model);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
}
}
gboolean
moo_text_popup_get_selected (MooTextPopup *popup,
GtkTreeIter *iter)
{
g_return_val_if_fail (MOO_IS_TEXT_POPUP (popup), FALSE);
g_return_val_if_fail (popup->priv->model != NULL, FALSE);
return gtk_tree_selection_get_selected (popup->priv->selection, NULL, iter);
}
void
moo_text_popup_select (MooTextPopup *popup,
GtkTreeIter *iter)
{
g_return_if_fail (MOO_IS_TEXT_POPUP (popup));
g_return_if_fail (popup->priv->model != NULL);
gtk_tree_selection_select_iter (popup->priv->selection, iter);
if (popup->priv->visible)
{
GtkTreePath *path;
path = gtk_tree_model_get_path (popup->priv->model, iter);
gtk_tree_view_scroll_to_cell (popup->priv->treeview, path,
NULL, FALSE, 0, 0);
gtk_tree_path_free (path);
}
}
static void
moo_text_popup_select_first (MooTextPopup *popup)
{
GtkTreeIter iter;
gtk_tree_model_get_iter_first (popup->priv->model, &iter);
moo_text_popup_select (popup, &iter);
}
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