diff options
Diffstat (limited to 'shell/search-bar.c')
| -rw-r--r-- | shell/search-bar.c | 238 |
1 files changed, 238 insertions, 0 deletions
diff --git a/shell/search-bar.c b/shell/search-bar.c new file mode 100644 index 00000000..f560f649 --- /dev/null +++ b/shell/search-bar.c @@ -0,0 +1,238 @@ +/* + * This file is part of libslab. + * + * Copyright (c) 2006 Novell, Inc. + * + * Libslab 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 of the License, or (at your option) + * any later version. + * + * Libslab 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 Lesser General Public License for + * more details. + * + * You should have received a copy of the GNU Lesser General Public License + * along with libslab; if not, write to the Free Software Foundation, Inc., 51 + * Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include "search-bar.h" +#include "config.h" + +#include "nld-marshal.h" + +#include <glib/gi18n-lib.h> + +typedef struct +{ + GtkWidget *hbox; + GtkEntry *entry; + GtkWidget *button; + + int search_timeout; + guint timeout_id; + + gboolean block_signal; +} NldSearchBarPrivate; + +static void nld_search_bar_finalize (GObject *); + +static gboolean nld_search_bar_focus (GtkWidget *, GtkDirectionType); +static void nld_search_bar_grab_focus (GtkWidget *); + +enum +{ + SEARCH, + LAST_SIGNAL +}; + +static guint signals[LAST_SIGNAL] = { 0 }; + +G_DEFINE_TYPE_WITH_PRIVATE (NldSearchBar, nld_search_bar, GTK_TYPE_BOX) + +static void emit_search (NldSearchBar * search_bar); +static void emit_search_callback (GtkWidget * widget, gpointer search_bar); + +static void nld_search_bar_class_init (NldSearchBarClass * nld_search_bar_class) +{ + GObjectClass *object_class = G_OBJECT_CLASS (nld_search_bar_class); + GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (nld_search_bar_class); + + object_class->finalize = nld_search_bar_finalize; + widget_class->focus = nld_search_bar_focus; + widget_class->grab_focus = nld_search_bar_grab_focus; + + signals[SEARCH] = + g_signal_new ("search", G_TYPE_FROM_CLASS (nld_search_bar_class), + G_SIGNAL_RUN_FIRST | G_SIGNAL_ACTION, G_STRUCT_OFFSET (NldSearchBarClass, search), + NULL, NULL, nld_marshal_VOID__STRING, G_TYPE_NONE, 1, G_TYPE_STRING); +} + +static void +nld_search_bar_init (NldSearchBar * search_bar) +{ + NldSearchBarPrivate *priv = nld_search_bar_get_instance_private (search_bar); + GtkWidget *entry; + + gtk_widget_set_can_focus (GTK_WIDGET (search_bar), TRUE); + gtk_orientable_set_orientation (GTK_ORIENTABLE (search_bar), GTK_ORIENTATION_VERTICAL); + + priv->hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 3); + gtk_box_pack_start (GTK_BOX (search_bar), priv->hbox, TRUE, FALSE, 0); + + entry = gtk_search_entry_new (); + gtk_widget_set_halign (entry, GTK_ALIGN_START); + gtk_widget_set_valign (entry, GTK_ALIGN_CENTER); + priv->entry = GTK_ENTRY (entry); + gtk_widget_show (entry); + gtk_box_pack_start (GTK_BOX (priv->hbox), entry, TRUE, TRUE, 0); + + g_signal_connect (entry, "activate", G_CALLBACK (emit_search_callback), search_bar); + + priv->search_timeout = -1; +} + +static void +nld_search_bar_finalize (GObject * object) +{ + NldSearchBarPrivate *priv = nld_search_bar_get_instance_private (NLD_SEARCH_BAR(object)); + + if (priv->timeout_id) + g_source_remove (priv->timeout_id); + + G_OBJECT_CLASS (nld_search_bar_parent_class)->finalize (object); +} + +static gboolean +nld_search_bar_focus (GtkWidget * widget, GtkDirectionType dir) +{ + NldSearchBarPrivate *priv = nld_search_bar_get_instance_private (NLD_SEARCH_BAR(widget)); + + return gtk_widget_child_focus (priv->hbox, dir); +} + +gboolean +nld_search_bar_has_focus (NldSearchBar * search_bar) +{ + NldSearchBarPrivate *priv = nld_search_bar_get_instance_private (search_bar); + + return gtk_widget_has_focus (GTK_WIDGET (priv->entry)); +} + +static void +nld_search_bar_grab_focus (GtkWidget * widget) +{ + NldSearchBarPrivate *priv = nld_search_bar_get_instance_private (NLD_SEARCH_BAR(widget)); + + gtk_widget_grab_focus (GTK_WIDGET (priv->entry)); +} + +GtkWidget * +nld_search_bar_new (void) +{ + return g_object_new (NLD_TYPE_SEARCH_BAR, NULL); +} + +void +nld_search_bar_clear (NldSearchBar * search_bar) +{ + NldSearchBarPrivate *priv = nld_search_bar_get_instance_private (search_bar); + + priv->block_signal = TRUE; + gtk_entry_set_text (priv->entry, ""); + priv->block_signal = FALSE; +} + +static void +emit_search (NldSearchBar * search_bar) +{ + NldSearchBarPrivate *priv = nld_search_bar_get_instance_private (search_bar); + + if (priv->block_signal) + return; + + if (priv->timeout_id) + { + g_source_remove (priv->timeout_id); + priv->timeout_id = 0; + } + + g_signal_emit (search_bar, signals[SEARCH], 0, + nld_search_bar_get_text (search_bar)); +} + +static void +emit_search_callback (GtkWidget * widget, gpointer search_bar) +{ + emit_search (search_bar); +} + +static gboolean +search_timeout (gpointer search_bar) +{ + NldSearchBarPrivate *priv = nld_search_bar_get_instance_private (search_bar); + + priv->timeout_id = 0; + emit_search (search_bar); + return FALSE; +} + +static void +entry_changed (GtkWidget * entry, gpointer search_bar) +{ + NldSearchBarPrivate *priv = nld_search_bar_get_instance_private (search_bar); + + if (priv->search_timeout == 0) + emit_search (search_bar); + else if (priv->search_timeout > 0) + { + if (priv->timeout_id != 0) + g_source_remove (priv->timeout_id); + priv->timeout_id = + g_timeout_add (priv->search_timeout * 1000, search_timeout, search_bar); + } +} + +int +nld_search_bar_get_search_timeout (NldSearchBar * search_bar) +{ + NldSearchBarPrivate *priv = nld_search_bar_get_instance_private (search_bar); + + return priv->search_timeout; +} + +void +nld_search_bar_set_search_timeout (NldSearchBar * search_bar, int search_timeout) +{ + NldSearchBarPrivate *priv = nld_search_bar_get_instance_private (search_bar); + + if (priv->search_timeout != -1 && search_timeout == -1) + g_signal_handlers_disconnect_by_func (priv->entry, entry_changed, search_bar); + else if (search_timeout != -1) + { + g_signal_connect (priv->entry, "changed", G_CALLBACK (entry_changed), search_bar); + } + + priv->search_timeout = search_timeout; +} + +const char * +nld_search_bar_get_text (NldSearchBar * search_bar) +{ + NldSearchBarPrivate *priv = nld_search_bar_get_instance_private (search_bar); + + return gtk_entry_get_text (priv->entry); +} + +void +nld_search_bar_set_text (NldSearchBar * search_bar, const char *text, gboolean activate) +{ + NldSearchBarPrivate *priv = nld_search_bar_get_instance_private (search_bar); + + gtk_entry_set_text (priv->entry, text); + if (activate) + emit_search (search_bar); +} + |