From 0ee842ac627f30fa14d75b06cd7147a67090731e Mon Sep 17 00:00:00 2001 From: Thomas Meire Date: Tue, 12 Jan 2010 15:34:39 +0000 Subject: Add search bar in chat text views (#585168) --- libempathy-gtk/empathy-search-bar.c | 263 ++++++++++++++++++++++++++++++++++++ 1 file changed, 263 insertions(+) create mode 100644 libempathy-gtk/empathy-search-bar.c (limited to 'libempathy-gtk/empathy-search-bar.c') diff --git a/libempathy-gtk/empathy-search-bar.c b/libempathy-gtk/empathy-search-bar.c new file mode 100644 index 000000000..e4bad3b43 --- /dev/null +++ b/libempathy-gtk/empathy-search-bar.c @@ -0,0 +1,263 @@ +/* -*- Mode: C; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* + * Copyright (C) 2010 Thomas Meire + * + * The code contained in this file 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. + * + * This file 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 this code; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include +#include +#include + +#include + +#include "empathy-chat-view.h" +#include "empathy-search-bar.h" +#include "empathy-ui-utils.h" + +#define GET_PRIV(obj) EMPATHY_GET_PRIV (obj, EmpathySearchBar) + +G_DEFINE_TYPE (EmpathySearchBar, empathy_search_bar, GTK_TYPE_BIN); + +typedef struct _EmpathySearchBarPriv EmpathySearchBarPriv; +struct _EmpathySearchBarPriv +{ + EmpathyChatView *chat_view; + + GtkWidget *search_entry; + gchar *last_search; + + GtkWidget *search_close; + GtkWidget *search_previous; + GtkWidget *search_next; + GtkWidget *search_not_found; +}; + +GtkWidget * +empathy_search_bar_new (EmpathyChatView *view) +{ + EmpathySearchBar *self = g_object_new (EMPATHY_TYPE_SEARCH_BAR, NULL); + + GET_PRIV (self)->chat_view = view; + + return GTK_WIDGET (self); +} + +static void +empathy_search_bar_size_request (GtkWidget *widget, + GtkRequisition *requisition) +{ + GtkBin *bin; + GtkWidget *child; + + bin = GTK_BIN (widget); + child = gtk_bin_get_child (bin); + + if (child && gtk_widget_get_visible (child)) + { + GtkRequisition child_requisition; + + gtk_widget_size_request (child, &child_requisition); + + requisition->width = child_requisition.width; + requisition->height = child_requisition.height; + } +} + +static void +empathy_search_bar_size_allocate (GtkWidget *widget, + GtkAllocation *allocation) +{ + GtkBin *bin; + GtkWidget *child; + GtkAllocation child_allocation; + + bin = GTK_BIN (widget); + child = gtk_bin_get_child (bin); + + gtk_widget_set_allocation (widget, allocation); + + if (child && gtk_widget_get_visible (child)) + { + child_allocation.x = allocation->x; + child_allocation.y = allocation->y; + child_allocation.width = MAX (allocation->width, 0); + child_allocation.height = MAX (allocation->height, 0); + + gtk_widget_size_allocate (child, &child_allocation); + } +} + +static void +empathy_search_bar_finalize (GObject *object) +{ + EmpathySearchBarPriv *priv = GET_PRIV (object); + + g_free (priv->last_search); +} + +static void +empathy_search_bar_update_buttons (EmpathySearchBar *self) +{ + gboolean can_go_forward = FALSE; + gboolean can_go_backward = FALSE; + + EmpathySearchBarPriv* priv = GET_PRIV (self); + + /* update previous / next buttons */ + if (priv->last_search) + { + empathy_chat_view_find_abilities (priv->chat_view, priv->last_search, + &can_go_backward, &can_go_forward); + } + + gtk_widget_set_sensitive (priv->search_previous, + can_go_backward && !EMP_STR_EMPTY (priv->last_search)); + gtk_widget_set_sensitive (priv->search_next, + can_go_forward && !EMP_STR_EMPTY (priv->last_search)); +} + +void +empathy_search_bar_show (EmpathySearchBar *self) +{ + EmpathySearchBarPriv *priv = GET_PRIV (self); + + if (priv->last_search) + { + /* make sure we have an up to date last_search */ + g_free (priv->last_search); + priv->last_search = gtk_editable_get_chars ( + GTK_EDITABLE (priv->search_entry), 0, -1); + } + empathy_chat_view_highlight (priv->chat_view, priv->last_search); + empathy_search_bar_update_buttons (self); + + /* grab the focus to the search entry */ + gtk_widget_grab_focus (priv->search_entry); + + gtk_widget_show (GTK_WIDGET (self)); +} + + +static void +empathy_search_bar_close_cb (GtkButton *button, + gpointer user_data) +{ + EmpathySearchBarPriv *priv = GET_PRIV (user_data); + + empathy_chat_view_highlight (priv->chat_view, ""); + gtk_widget_hide (GTK_WIDGET (user_data)); + + /* give the focus back to the focus-chain with the chat view */ + gtk_widget_grab_focus (GTK_WIDGET (priv->chat_view)); +} + +static void +empathy_search_bar_entry_changed (GtkEditable *entry, + gpointer user_data) +{ + EmpathySearchBarPriv *priv; + gboolean found; + gchar *search; + + priv = GET_PRIV (user_data); + + search = gtk_editable_get_chars (entry, 0, -1); + + found = empathy_chat_view_find_previous (priv->chat_view, search, TRUE); + gtk_widget_set_visible (priv->search_not_found, + !(found || EMP_STR_EMPTY (search))); + + empathy_chat_view_highlight (priv->chat_view, search); + + g_free (priv->last_search); + priv->last_search = search; + + empathy_search_bar_update_buttons (EMPATHY_SEARCH_BAR (user_data)); +} + +static void +empathy_search_bar_next_cb (GtkButton *button, + gpointer user_data) +{ + EmpathySearchBarPriv *priv = GET_PRIV (user_data); + + empathy_chat_view_find_next (priv->chat_view, priv->last_search, FALSE); + empathy_search_bar_update_buttons (EMPATHY_SEARCH_BAR (user_data)); +} + +static void +empathy_search_bar_previous_cb (GtkButton *button, + gpointer user_data) +{ + EmpathySearchBarPriv *priv = GET_PRIV (user_data); + + empathy_chat_view_find_previous (priv->chat_view, priv->last_search, FALSE); + empathy_search_bar_update_buttons (EMPATHY_SEARCH_BAR (user_data)); +} + +static void +empathy_search_bar_init (EmpathySearchBar * self) +{ + gchar *filename; + GtkBuilder *gui; + GtkWidget *internal; + EmpathySearchBarPriv *priv; + + priv = G_TYPE_INSTANCE_GET_PRIVATE (self, EMPATHY_TYPE_SEARCH_BAR, + EmpathySearchBarPriv); + + self->priv = priv; + + filename = empathy_file_lookup ("empathy-search-bar.ui", "libempathy-gtk"); + gui = empathy_builder_get_file (filename, + "search_widget", &internal, + "search_close", &priv->search_close, + "search_entry", &priv->search_entry, + "search_previous", &priv->search_previous, + "search_next", &priv->search_next, + "search_not_found", &priv->search_not_found, + NULL); + g_free (filename); + + /* Add the signals */ + empathy_builder_connect (gui, self, + "search_close", "clicked", empathy_search_bar_close_cb, + "search_entry", "changed", empathy_search_bar_entry_changed, + "search_previous", "clicked", empathy_search_bar_previous_cb, + "search_next", "clicked", empathy_search_bar_next_cb, + NULL); + + gtk_container_add (GTK_CONTAINER (self), internal); + gtk_widget_show_all (internal); + gtk_widget_hide (priv->search_not_found); + g_object_unref (gui); +} + +static void +empathy_search_bar_class_init (EmpathySearchBarClass *class) +{ + GObjectClass *gobject_class = G_OBJECT_CLASS (class); + GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (class); + + gobject_class->finalize = empathy_search_bar_finalize; + + g_type_class_add_private (gobject_class, sizeof (EmpathySearchBarPriv)); + + /* Neither GtkBin nor GtkContainer seems to do this for us :( */ + widget_class->size_request = empathy_search_bar_size_request; + widget_class->size_allocate = empathy_search_bar_size_allocate; +} + -- cgit v1.2.3