medit/moo/mooutils/moohistorycombo.c

625 lines
19 KiB
C

/*
* moohistorycombo.c
*
* Copyright (C) 2004-2007 by Yevgen Muntyan <muntyan@math.tamu.edu>
*
* This library 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 2.1 of the License, or (at your option) any later version.
*
* See COPYING file that comes with this distribution.
*/
#include "mooutils/moomarshals.h"
#include "mooutils/moohistorycombo.h"
#include "mooutils/mooutils-misc.h"
#include <gtk/gtk.h>
#include <gdk/gdkkeysyms.h>
#include <string.h>
struct _MooHistoryComboPrivate {
gboolean enable_completion;
gboolean called_popup;
guint completion_popup_timeout_id;
guint completion_popup_timeout;
MooHistoryList *list;
GtkTreeModel *model;
GtkTreeModel *filter;
char *completion_text;
MooHistoryComboFilterFunc filter_func;
gpointer filter_data;
gboolean disable_filter;
gboolean sort_history;
gboolean sort_completion;
};
static void moo_history_combo_finalize (GObject *object);
static void moo_history_combo_set_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec);
static void moo_history_combo_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec);
static void moo_history_combo_popup (MooCombo *combo);
static void moo_history_combo_changed (MooCombo *combo);
static gboolean completion_visible_func (GtkTreeModel *model,
GtkTreeIter *iter,
MooHistoryCombo *combo);
static gboolean default_filter_func (const char *text,
GtkTreeModel *model,
GtkTreeIter *iter,
gpointer data);
static int default_sort_func (GtkTreeModel *model,
GtkTreeIter *a,
GtkTreeIter *b);
static void cell_data_func (GtkCellLayout *cell_layout,
GtkCellRenderer *cell,
GtkTreeModel *tree_model,
GtkTreeIter *iter);
static gboolean row_separator_func (GtkTreeModel *model,
GtkTreeIter *iter,
gpointer data);
static char *get_text_func (GtkTreeModel *model,
GtkTreeIter *iter,
gpointer data);
/* MOO_TYPE_HISTORY_COMBO */
G_DEFINE_TYPE (MooHistoryCombo, moo_history_combo, MOO_TYPE_COMBO)
enum {
PROP_0,
PROP_LIST,
PROP_SORT_HISTORY,
PROP_SORT_COMPLETION,
PROP_HISTORY_LIST_ID,
PROP_ENABLE_COMPLETION
};
static void
moo_history_combo_class_init (MooHistoryComboClass *klass)
{
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
MooComboClass *combo_class = MOO_COMBO_CLASS (klass);
moo_history_combo_parent_class = g_type_class_peek_parent (klass);
gobject_class->finalize = moo_history_combo_finalize;
gobject_class->set_property = moo_history_combo_set_property;
gobject_class->get_property = moo_history_combo_get_property;
combo_class->popup = moo_history_combo_popup;
combo_class->changed = moo_history_combo_changed;
g_object_class_install_property (gobject_class,
PROP_LIST,
g_param_spec_object ("list",
"list",
"list",
MOO_TYPE_HISTORY_LIST,
G_PARAM_READWRITE));
g_object_class_install_property (gobject_class,
PROP_SORT_HISTORY,
g_param_spec_boolean ("sort-history",
"sort-history",
"sort-history",
TRUE,
G_PARAM_READWRITE));
g_object_class_install_property (gobject_class,
PROP_SORT_COMPLETION,
g_param_spec_boolean ("sort-completion",
"sort-completion",
"sort-completion",
FALSE,
G_PARAM_READWRITE));
g_object_class_install_property (gobject_class,
PROP_ENABLE_COMPLETION,
g_param_spec_boolean ("enable-completion",
"enable-completion",
"enable-completion",
TRUE,
G_PARAM_READWRITE));
g_object_class_install_property (gobject_class,
PROP_HISTORY_LIST_ID,
g_param_spec_string ("history-list-id",
"history-list-id",
"history-list-id",
NULL,
G_PARAM_WRITABLE));
}
static void
moo_history_combo_init (MooHistoryCombo *combo)
{
GtkCellRenderer *cell;
combo->priv = g_new0 (MooHistoryComboPrivate, 1);
combo->priv->filter_func = default_filter_func;
combo->priv->filter_data = combo;
combo->priv->completion_text = g_strdup ("");
combo->priv->enable_completion = TRUE;
gtk_cell_layout_clear (GTK_CELL_LAYOUT (combo));
cell = gtk_cell_renderer_text_new ();
g_object_set (cell, "single-paragraph-mode", TRUE, NULL);
gtk_cell_layout_pack_start (GTK_CELL_LAYOUT (combo), cell, TRUE);
gtk_cell_layout_set_cell_data_func (GTK_CELL_LAYOUT (combo), cell,
(GtkCellLayoutDataFunc) cell_data_func,
combo, NULL);
combo->priv->list = moo_history_list_new (NULL);
combo->priv->model = gtk_tree_model_sort_new_with_model (moo_history_list_get_model (combo->priv->list));
combo->priv->filter = gtk_tree_model_filter_new (combo->priv->model, NULL);
gtk_tree_model_filter_set_visible_func (GTK_TREE_MODEL_FILTER (combo->priv->filter),
(GtkTreeModelFilterVisibleFunc) completion_visible_func,
combo, NULL);
moo_combo_set_model (MOO_COMBO (combo), combo->priv->filter);
moo_combo_set_row_separator_func (MOO_COMBO (combo), row_separator_func, NULL);
moo_combo_set_get_text_func (MOO_COMBO (combo), get_text_func, NULL);
}
static void
set_history_list_id (MooHistoryCombo *combo,
const char *id)
{
if (id)
{
MooHistoryList *list = moo_history_list_new (id);
moo_history_combo_set_list (combo, list);
g_object_unref (list);
}
}
static void
moo_history_combo_set_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec)
{
MooHistoryCombo *combo = MOO_HISTORY_COMBO (object);
switch (prop_id)
{
case PROP_LIST:
moo_history_combo_set_list (combo, g_value_get_object (value));
break;
case PROP_SORT_HISTORY:
combo->priv->sort_history = g_value_get_boolean (value);
g_object_notify (object, "sort-history");
break;
case PROP_SORT_COMPLETION:
combo->priv->sort_completion = g_value_get_boolean (value);
g_object_notify (object, "sort-completion");
break;
case PROP_ENABLE_COMPLETION:
combo->priv->enable_completion = g_value_get_boolean (value);
g_object_notify (object, "enable-completion");
break;
case PROP_HISTORY_LIST_ID:
set_history_list_id (combo, g_value_get_string (value));
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
moo_history_combo_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec)
{
MooHistoryCombo *combo = MOO_HISTORY_COMBO (object);
switch (prop_id)
{
case PROP_LIST:
g_value_set_object (value, combo->priv->list);
break;
case PROP_SORT_HISTORY:
g_value_set_boolean (value, combo->priv->sort_history);
break;
case PROP_SORT_COMPLETION:
g_value_set_boolean (value, combo->priv->sort_completion);
break;
case PROP_ENABLE_COMPLETION:
g_value_set_boolean (value, combo->priv->enable_completion);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
moo_history_combo_finalize (GObject *object)
{
MooHistoryCombo *combo = MOO_HISTORY_COMBO (object);
g_free (combo->priv->completion_text);
if (combo->priv->filter)
g_object_unref (combo->priv->filter);
g_object_unref (combo->priv->list);
g_free (combo->priv);
G_OBJECT_CLASS (moo_history_combo_parent_class)->finalize (object);
}
static gboolean
model_is_empty (GtkTreeModel *model)
{
GtkTreeIter iter;
return !gtk_tree_model_get_iter_first (model, &iter);
}
static void
get_entry_text (MooHistoryCombo *combo)
{
g_free (combo->priv->completion_text);
combo->priv->completion_text = g_strdup (moo_combo_entry_get_text (MOO_COMBO (combo)));
}
static void
moo_history_combo_popup (MooCombo *combo)
{
MooHistoryCombo *entry = MOO_HISTORY_COMBO (combo);
gboolean do_sort = FALSE;
if (!entry->priv->called_popup)
{
entry->priv->disable_filter = TRUE;
if (entry->priv->sort_history)
do_sort = TRUE;
}
else
{
entry->priv->completion_popup_timeout_id = 0;
entry->priv->disable_filter = FALSE;
entry->priv->called_popup = FALSE;
if (entry->priv->sort_completion)
do_sort = TRUE;
if (moo_combo_popup_shown (MOO_COMBO (entry)))
return;
if (!entry->priv->filter)
return;
get_entry_text (entry);
}
if (do_sort)
gtk_tree_sortable_set_default_sort_func (GTK_TREE_SORTABLE (entry->priv->model),
(GtkTreeIterCompareFunc) default_sort_func,
NULL, NULL);
else
gtk_tree_model_sort_reset_default_sort_func (GTK_TREE_MODEL_SORT (entry->priv->model));
gtk_tree_model_filter_refilter (GTK_TREE_MODEL_FILTER (entry->priv->filter));
entry->priv->disable_filter = FALSE;
MOO_COMBO_CLASS(moo_history_combo_parent_class)->popup (combo);
}
static int
default_sort_func (GtkTreeModel *model,
GtkTreeIter *a,
GtkTreeIter *b)
{
MooHistoryItem *e1 = NULL, *e2 = NULL;
int result;
/* XXX 0 is not good */
gtk_tree_model_get (model, a, 0, &e1, -1);
gtk_tree_model_get (model, b, 0, &e2, -1);
if (!e1 && !e2)
result = 0;
else if (!e1)
result = e2->builtin ? 1 : -1;
else if (!e2)
result = e1->builtin ? -1 : 1;
else if (e1->builtin != e2->builtin)
result = e1->builtin ? -1 : 1;
else
result = strcmp (e1->data, e2->data);
moo_history_item_free (e1);
moo_history_item_free (e2);
return result;
}
static void
refilter (MooHistoryCombo *combo)
{
get_entry_text (combo);
gtk_tree_model_filter_refilter (GTK_TREE_MODEL_FILTER (combo->priv->filter));
if (model_is_empty (combo->priv->filter))
moo_combo_popdown (MOO_COMBO (combo));
else
moo_combo_update_popup (MOO_COMBO (combo));
}
static gboolean
popup (MooHistoryCombo *combo)
{
combo->priv->called_popup = TRUE;
moo_combo_popup (MOO_COMBO (combo));
return FALSE;
}
static void
moo_history_combo_changed (MooCombo *combo)
{
MooHistoryCombo *hist_combo = MOO_HISTORY_COMBO (combo);
if (!GTK_WIDGET_MAPPED (combo))
return;
if (!hist_combo->priv->enable_completion &&
!moo_combo_popup_shown (combo))
return;
get_entry_text (hist_combo);
if (!hist_combo->priv->completion_text[0] ||
moo_combo_get_active_iter (combo, NULL))
{
if (hist_combo->priv->completion_popup_timeout_id)
g_source_remove (hist_combo->priv->completion_popup_timeout_id);
moo_combo_popdown (combo);
}
else if (moo_combo_popup_shown (combo))
{
refilter (hist_combo);
}
else if (hist_combo->priv->completion_popup_timeout)
{
if (hist_combo->priv->completion_popup_timeout_id)
g_source_remove (hist_combo->priv->completion_popup_timeout_id);
hist_combo->priv->completion_popup_timeout_id =
_moo_timeout_add (hist_combo->priv->completion_popup_timeout,
(GSourceFunc) popup,
combo);
}
else
{
popup (hist_combo);
}
}
static gboolean
completion_visible_func (GtkTreeModel *model,
GtkTreeIter *iter,
MooHistoryCombo *combo)
{
if (combo->priv->disable_filter)
return TRUE;
else
return combo->priv->filter_func (combo->priv->completion_text,
model, iter, combo->priv->filter_data);
}
static gboolean
default_filter_func (const char *entry_text,
GtkTreeModel *model,
GtkTreeIter *iter,
G_GNUC_UNUSED gpointer data)
{
gboolean visible;
MooHistoryItem *e = NULL;
gtk_tree_model_get (model, iter, 0, &e, -1);
if (entry_text[0])
{
if (!e)
visible = FALSE;
else
visible = !strncmp (entry_text, e->data, strlen (entry_text));
}
else
{
visible = TRUE;
}
moo_history_item_free (e);
return visible ? TRUE : FALSE;
}
GtkWidget*
moo_history_combo_new (const char *user_id)
{
MooHistoryCombo *combo;
combo = g_object_new (MOO_TYPE_HISTORY_COMBO, NULL);
if (user_id)
{
MooHistoryList *list = moo_history_list_new (user_id);
moo_history_combo_set_list (combo, list);
g_object_unref (list);
}
return GTK_WIDGET (combo);
}
void
moo_history_combo_add_text (MooHistoryCombo *combo,
const char *text)
{
g_return_if_fail (MOO_IS_HISTORY_COMBO (combo));
g_return_if_fail (text != NULL);
moo_history_list_add (combo->priv->list, text);
}
void
moo_history_combo_commit (MooHistoryCombo *combo)
{
GtkTreeIter iter;
const char *text;
MooHistoryItem *freeme = NULL;
g_return_if_fail (MOO_IS_HISTORY_COMBO (combo));
text = moo_combo_entry_get_text (MOO_COMBO (combo));
if (!text || !*text)
return;
if (moo_history_list_find (combo->priv->list, text, &iter))
{
freeme = moo_history_list_get_item (combo->priv->list, &iter);
text = freeme->data;
}
moo_history_combo_add_text (combo, text);
if (freeme)
moo_history_item_free (freeme);
}
void
moo_history_combo_set_list (MooHistoryCombo *combo,
MooHistoryList *list)
{
g_return_if_fail (MOO_IS_HISTORY_COMBO (combo));
g_return_if_fail (!list || MOO_IS_HISTORY_LIST (list));
if (combo->priv->list == list)
return;
if (!list)
{
list = moo_history_list_new (NULL);
moo_history_combo_set_list (combo, list);
g_object_unref (list);
return;
}
g_object_unref (combo->priv->list);
moo_combo_set_model (MOO_COMBO (combo), NULL);
g_object_unref (combo->priv->filter);
combo->priv->list = list;
g_object_ref (combo->priv->list);
combo->priv->model = gtk_tree_model_sort_new_with_model (moo_history_list_get_model (combo->priv->list));
combo->priv->filter = gtk_tree_model_filter_new (combo->priv->model, NULL);
gtk_tree_model_filter_set_visible_func (GTK_TREE_MODEL_FILTER (combo->priv->filter),
(GtkTreeModelFilterVisibleFunc) completion_visible_func,
combo, NULL);
moo_combo_set_model (MOO_COMBO (combo), combo->priv->filter);
_moo_history_list_load (list);
g_object_notify (G_OBJECT (combo), "list");
}
MooHistoryList*
moo_history_combo_get_list (MooHistoryCombo *combo)
{
g_return_val_if_fail (MOO_IS_HISTORY_COMBO (combo), NULL);
return combo->priv->list;
}
static void
cell_data_func (G_GNUC_UNUSED GtkCellLayout *cell_layout,
GtkCellRenderer *cell,
GtkTreeModel *model,
GtkTreeIter *iter)
{
MooHistoryItem *e = NULL;
gtk_tree_model_get (model, iter, 0, &e, -1);
if (e)
{
g_object_set (cell, "text", e->display, NULL);
moo_history_item_free (e);
}
}
static gboolean
row_separator_func (GtkTreeModel *model,
GtkTreeIter *iter,
G_GNUC_UNUSED gpointer data)
{
gboolean separator;
MooHistoryItem *item = NULL;
gtk_tree_model_get (model, iter, 0, &item, -1);
separator = item == NULL;
moo_history_item_free (item);
return separator;
}
static char*
get_text_func (GtkTreeModel *model,
GtkTreeIter *iter,
G_GNUC_UNUSED gpointer data)
{
MooHistoryItem *e = NULL;
char *text;
gtk_tree_model_get (model, iter, 0, &e, -1);
g_return_val_if_fail (e != NULL, NULL);
g_return_val_if_fail (g_utf8_validate (e->data, -1, NULL), NULL);
text = g_strdup (e->data);
moo_history_item_free (e);
return text;
}