/*
* e-search-bar.c
*
* This program 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) version 3.
*
* 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with the program; if not, see <http://www.gnu.org/licenses/>
*
*
* Copyright (C) 1999-2008 Novell, Inc. (www.novell.com)
*
*/
#include "e-search-bar.h"
#include <glib/gi18n.h>
#include <gdk/gdkkeysyms.h>
#include <gtkhtml/gtkhtml-search.h>
#define E_SEARCH_BAR_GET_PRIVATE(obj) \
(G_TYPE_INSTANCE_GET_PRIVATE \
((obj), E_TYPE_SEARCH_BAR, ESearchBarPrivate))
struct _ESearchBarPrivate {
EWebView *web_view;
GtkWidget *entry;
GtkWidget *case_sensitive_button;
GtkWidget *wrapped_next_box;
GtkWidget *wrapped_prev_box;
GtkWidget *matches_label;
ESearchingTokenizer *tokenizer;
gchar *active_search;
guint rerun_search : 1;
};
enum {
PROP_0,
PROP_ACTIVE_SEARCH,
PROP_CASE_SENSITIVE,
PROP_TEXT,
PROP_WEB_VIEW
};
enum {
CHANGED,
CLEAR,
LAST_SIGNAL
};
static guint signals[LAST_SIGNAL];
G_DEFINE_TYPE (
ESearchBar,
e_search_bar,
GTK_TYPE_HBOX)
static void
search_bar_update_matches (ESearchBar *search_bar)
{
ESearchingTokenizer *tokenizer;
GtkWidget *matches_label;
gint matches;
gchar *text;
tokenizer = e_search_bar_get_tokenizer (search_bar);
matches_label = search_bar->priv->matches_label;
matches = e_searching_tokenizer_match_count (tokenizer);
text = g_strdup_printf (_("Matches: %d"), matches);
gtk_label_set_text (GTK_LABEL (matches_label), text);
gtk_widget_show (matches_label);
g_free (text);
}
static void
search_bar_update_tokenizer (ESearchBar *search_bar)
{
ESearchingTokenizer *tokenizer;
gboolean case_sensitive;
gchar *active_search;
tokenizer = e_search_bar_get_tokenizer (search_bar);
case_sensitive = e_search_bar_get_case_sensitive (search_bar);
if (gtk_widget_get_visible (GTK_WIDGET (search_bar)))
active_search = search_bar->priv->active_search;
else
active_search = NULL;
e_searching_tokenizer_set_primary_case_sensitivity (
tokenizer, case_sensitive);
e_searching_tokenizer_set_primary_search_string (
tokenizer, active_search);
e_search_bar_changed (search_bar);
}
static void
search_bar_find (ESearchBar *search_bar,
gboolean search_forward)
{
EWebView *web_view;
GtkWidget *widget;
gboolean case_sensitive;
gboolean new_search;
gboolean wrapped = FALSE;
gchar *text;
web_view = e_search_bar_get_web_view (search_bar);
case_sensitive = e_search_bar_get_case_sensitive (search_bar);
text = e_search_bar_get_text (search_bar);
if (text == NULL || *text == '\0') {
e_search_bar_clear (search_bar);
g_free (text);
return;
}
new_search =
(search_bar->priv->active_search == NULL) ||
(g_strcmp0 (text, search_bar->priv->active_search) != 0);
/* XXX On a new search, the HTMLEngine's search state gets
* destroyed when we redraw the message with highlighted
* matches (EMHTMLStream's write() method triggers this,
* but it's really GtkHtml's fault). That's why the first
* match isn't selected automatically. It also causes
* gtk_html_engine_search_next() to return FALSE, which we
* assume to mean the search wrapped.
*
* So to avoid mistakenly thinking the search wrapped when
* it hasn't, we have to trap the first button click after a
* search and re-run the search to recreate the HTMLEngine's
* search state, so that gtk_html_engine_search_next() will
* succeed. */
if (new_search) {
g_free (search_bar->priv->active_search);
search_bar->priv->active_search = text;
search_bar->priv->rerun_search = TRUE;
search_bar_update_tokenizer (search_bar);
} else if (search_bar->priv->rerun_search) {
gtk_html_engine_search (
GTK_HTML (web_view),
search_bar->priv->active_search,
case_sensitive, search_forward, FALSE);
search_bar->priv->rerun_search = FALSE;
g_free (text);
} else {
gtk_html_engine_search_set_forward (
GTK_HTML (web_view), search_forward);
if (!gtk_html_engine_search_next (GTK_HTML (web_view)))
wrapped = TRUE;
g_free (text);
}
if (new_search || wrapped)
gtk_html_engine_search (
GTK_HTML (web_view),
search_bar->priv->active_search,
case_sensitive, search_forward, FALSE);
g_object_notify (G_OBJECT (search_bar), "active-search");
/* Update wrapped label visibility. */
widget = search_bar->priv->wrapped_next_box;
if (wrapped && search_forward)
gtk_widget_show (widget);
else
gtk_widget_hide (widget);
widget = search_bar->priv->wrapped_prev_box;
if (wrapped && !search_forward)
gtk_widget_show (widget);
else
gtk_widget_hide (widget);
}
static void
search_bar_changed_cb (ESearchBar *search_bar)
{
g_object_notify (G_OBJECT (search_bar), "text");
}
static void
search_bar_find_next_cb (ESearchBar *search_bar)
{
search_bar_find (search_bar, TRUE);
}
static void
search_bar_find_previous_cb (ESearchBar *search_bar)
{
search_bar_find (search_bar, FALSE);
}
static void
search_bar_icon_release_cb (ESearchBar *search_bar,
GtkEntryIconPosition icon_pos,
GdkEvent *event)
{
g_return_if_fail (icon_pos == GTK_ENTRY_ICON_SECONDARY);
e_search_bar_clear (search_bar);
gtk_widget_grab_focus (search_bar->priv->entry);
}
static void
search_bar_toggled_cb (ESearchBar *search_bar)
{
g_free (search_bar->priv->active_search);
search_bar->priv->active_search = NULL;
g_object_notify (G_OBJECT (search_bar), "active-search");
g_object_notify (G_OBJECT (search_bar), "case-sensitive");
}
static void
search_bar_set_web_view (ESearchBar *search_bar,
EWebView *web_view)
{
GtkHTML *html;
ESearchingTokenizer *tokenizer;
g_return_if_fail (search_bar->priv->web_view == NULL);
search_bar->priv->web_view = g_object_ref (web_view);
html = GTK_HTML (web_view);
tokenizer = e_search_bar_get_tokenizer (search_bar);
gtk_html_set_tokenizer (html, HTML_TOKENIZER (tokenizer));
}
static void
search_bar_set_property (GObject *object,
guint property_id,
const GValue *value,
GParamSpec *pspec)
{
switch (property_id) {
case PROP_CASE_SENSITIVE:
e_search_bar_set_case_sensitive (
E_SEARCH_BAR (object),
g_value_get_boolean (value));
return;
case PROP_TEXT:
e_search_bar_set_text (
E_SEARCH_BAR (object),
g_value_get_string (value));
return;
case PROP_WEB_VIEW:
search_bar_set_web_view (
E_SEARCH_BAR (object),
g_value_get_object (value));
return;
}
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
}
static void
search_bar_get_property (GObject *object,
guint property_id,
GValue *value,
GParamSpec *pspec)
{
switch (property_id) {
case PROP_ACTIVE_SEARCH:
g_value_set_boolean (
value, e_search_bar_get_active_search (
E_SEARCH_BAR (object)));
return;
case PROP_CASE_SENSITIVE:
g_value_set_boolean (
value, e_search_bar_get_case_sensitive (
E_SEARCH_BAR (object)));
return;
case PROP_TEXT:
g_value_take_string (
value, e_search_bar_get_text (
E_SEARCH_BAR (object)));
return;
case PROP_WEB_VIEW:
g_value_set_object (
value, e_search_bar_get_web_view (
E_SEARCH_BAR (object)));
return;
}
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
}
static void
search_bar_dispose (GObject *object)
{
ESearchBarPrivate *priv;
priv = E_SEARCH_BAR_GET_PRIVATE (object);
if (priv->web_view != NULL) {
g_object_unref (priv->web_view);
priv->web_view = NULL;
}
if (priv->entry != NULL) {
g_object_unref (priv->entry);
priv->entry = NULL;
}
if (priv->case_sensitive_button != NULL) {
g_object_unref (priv->case_sensitive_button);
priv->case_sensitive_button = NULL;
}
if (priv->wrapped_next_box != NULL) {
g_object_unref (priv->wrapped_next_box);
priv->wrapped_next_box = NULL;
}
if (priv->wrapped_prev_box != NULL) {
g_object_unref (priv->wrapped_prev_box);
priv->wrapped_prev_box = NULL;
}
if (priv->matches_label != NULL) {
g_object_unref (priv->matches_label);
priv->matches_label = NULL;
}
if (priv->tokenizer != NULL) {
g_object_unref (priv->tokenizer);
priv->tokenizer = NULL;
}
/* Chain up to parent's dispose() method. */
G_OBJECT_CLASS (e_search_bar_parent_class)->dispose (object);
}
static void
search_bar_finalize (GObject *object)
{
ESearchBarPrivate *priv;
priv = E_SEARCH_BAR_GET_PRIVATE (object);
g_free (priv->active_search);
/* Chain up to parent's finalize() method. */
G_OBJECT_CLASS (e_search_bar_parent_class)->finalize (object);
}
static void
search_bar_constructed (GObject *object)
{
ESearchBarPrivate *priv;
priv = E_SEARCH_BAR_GET_PRIVATE (object);
g_object_bind_property (
object, "case-sensitive",
priv->case_sensitive_button, "active",
G_BINDING_BIDIRECTIONAL |
G_BINDING_SYNC_CREATE);
if (G_OBJECT_CLASS (e_search_bar_parent_class)->constructed)
G_OBJECT_CLASS (e_search_bar_parent_class)->constructed (object);
}
static void
search_bar_show (GtkWidget *widget)
{
ESearchBar *search_bar;
search_bar = E_SEARCH_BAR (widget);
/* Chain up to parent's show() method. */
GTK_WIDGET_CLASS (e_search_bar_parent_class)->show (widget);
gtk_widget_grab_focus (search_bar->priv->entry);
search_bar_update_tokenizer (search_bar);
}
static void
search_bar_hide (GtkWidget *widget)
{
ESearchBar *search_bar;
search_bar = E_SEARCH_BAR (widget);
/* Chain up to parent's hide() method. */
GTK_WIDGET_CLASS (e_search_bar_parent_class)->hide (widget);
search_bar_update_tokenizer (search_bar);
}
static gboolean
search_bar_key_press_event (GtkWidget *widget,
GdkEventKey *event)
{
GtkWidgetClass *widget_class;
if (event->keyval == GDK_KEY_Escape) {
gtk_widget_hide (widget);
return TRUE;
}
/* Chain up to parent's key_press_event() method. */
widget_class = GTK_WIDGET_CLASS (e_search_bar_parent_class);
return widget_class->key_press_event (widget, event);
}
static void
search_bar_clear (ESearchBar *search_bar)
{
g_free (search_bar->priv->active_search);
search_bar->priv->active_search = NULL;
gtk_entry_set_text (GTK_ENTRY (search_bar->priv->entry), "");
gtk_widget_hide (search_bar->priv->wrapped_next_box);
gtk_widget_hide (search_bar->priv->wrapped_prev_box);
gtk_widget_hide (search_bar->priv->matches_label);
search_bar_update_tokenizer (search_bar);
g_object_notify (G_OBJECT (search_bar), "active-search");
}
static void
e_search_bar_class_init (ESearchBarClass *class)
{
GObjectClass *object_class;
GtkWidgetClass *widget_class;
g_type_class_add_private (class, sizeof (ESearchBarPrivate));
object_class = G_OBJECT_CLASS (class);
object_class->set_property = search_bar_set_property;
object_class->get_property = search_bar_get_property;
object_class->dispose = search_bar_dispose;
object_class->finalize = search_bar_finalize;
object_class->constructed = search_bar_constructed;
widget_class = GTK_WIDGET_CLASS (class);
widget_class->show = search_bar_show;
widget_class->hide = search_bar_hide;
widget_class->key_press_event = search_bar_key_press_event;
class->clear = search_bar_clear;
g_object_class_install_property (
object_class,
PROP_ACTIVE_SEARCH,
g_param_spec_boolean (
"active-search",
"Active Search",
NULL,
FALSE,
G_PARAM_READABLE));
g_object_class_install_property (
object_class,
PROP_CASE_SENSITIVE,
g_param_spec_boolean (
"case-sensitive",
"Case Sensitive",
NULL,
FALSE,
G_PARAM_READWRITE));
g_object_class_install_property (
object_class,
PROP_TEXT,
g_param_spec_string (
"text",
"Search Text",
NULL,
NULL,
G_PARAM_READWRITE));
g_object_class_install_property (
object_class,
PROP_WEB_VIEW,
g_param_spec_object (
"web-view",
"Web View",
NULL,
E_TYPE_WEB_VIEW,
G_PARAM_READWRITE |
G_PARAM_CONSTRUCT_ONLY));
signals[CHANGED] = g_signal_new (
"changed",
G_TYPE_FROM_CLASS (class),
G_SIGNAL_RUN_FIRST | G_SIGNAL_ACTION,
G_STRUCT_OFFSET (ESearchBarClass, changed),
NULL, NULL,
g_cclosure_marshal_VOID__VOID,
G_TYPE_NONE, 0);
signals[CLEAR] = g_signal_new (
"clear",
G_TYPE_FROM_CLASS (class),
G_SIGNAL_RUN_FIRST | G_SIGNAL_ACTION,
G_STRUCT_OFFSET (ESearchBarClass, clear),
NULL, NULL,
g_cclosure_marshal_VOID__VOID,
G_TYPE_NONE, 0);
}
static void
e_search_bar_init (ESearchBar *search_bar)
{
GtkWidget *label;
GtkWidget *widget;
GtkWidget *container;
search_bar->priv = E_SEARCH_BAR_GET_PRIVATE (search_bar);
search_bar->priv->tokenizer = e_searching_tokenizer_new ();
g_signal_connect_swapped (
search_bar->priv->tokenizer, "match",
G_CALLBACK (search_bar_update_matches), search_bar);
gtk_box_set_spacing (GTK_BOX (search_bar), 12);
container = GTK_WIDGET (search_bar);
widget = gtk_hbox_new (FALSE, 1);
gtk_box_pack_start (GTK_BOX (container), widget, FALSE, FALSE, 0);
gtk_widget_show (widget);
container = widget;
widget = gtk_button_new ();
gtk_button_set_image (
GTK_BUTTON (widget), gtk_image_new_from_stock (
GTK_STOCK_CLOSE, GTK_ICON_SIZE_MENU));
gtk_button_set_relief (GTK_BUTTON (widget), GTK_RELIEF_NONE);
gtk_widget_set_tooltip_text (widget, _("Close the find bar"));
gtk_box_pack_start (GTK_BOX (container), widget, FALSE, FALSE, 0);
gtk_widget_show (widget);
g_signal_connect_swapped (
widget, "clicked",
G_CALLBACK (gtk_widget_hide), search_bar);
widget = gtk_label_new_with_mnemonic (_("Fin_d:"));
gtk_box_pack_start (GTK_BOX (container), widget, FALSE, FALSE, 3);
gtk_widget_show (widget);
label = widget;
widget = gtk_entry_new ();
gtk_entry_set_icon_from_stock (
GTK_ENTRY (widget), GTK_ENTRY_ICON_SECONDARY,
GTK_STOCK_CLEAR);
gtk_entry_set_icon_tooltip_text (
GTK_ENTRY (widget), GTK_ENTRY_ICON_SECONDARY,
_("Clear the search"));
gtk_label_set_mnemonic_widget (GTK_LABEL (label), widget);
gtk_widget_set_size_request (widget, 200, -1);
gtk_box_pack_start (GTK_BOX (container), widget, FALSE, FALSE, 0);
search_bar->priv->entry = g_object_ref (widget);
gtk_widget_show (widget);
g_object_bind_property (
search_bar, "active-search",
widget, "secondary-icon-sensitive",
G_BINDING_SYNC_CREATE);
g_signal_connect_swapped (
widget, "activate",
G_CALLBACK (search_bar_find_next_cb), search_bar);
g_signal_connect_swapped (
widget, "changed",
G_CALLBACK (search_bar_changed_cb), search_bar);
g_signal_connect_swapped (
widget, "icon-release",
G_CALLBACK (search_bar_icon_release_cb), search_bar);
widget = gtk_button_new_with_mnemonic (_("_Previous"));
gtk_button_set_image (
GTK_BUTTON (widget), gtk_image_new_from_stock (
GTK_STOCK_GO_BACK, GTK_ICON_SIZE_MENU));
gtk_button_set_relief (GTK_BUTTON (widget), GTK_RELIEF_NONE);
gtk_widget_set_tooltip_text (
widget, _("Find the previous occurrence of the phrase"));
gtk_box_pack_start (GTK_BOX (container), widget, FALSE, FALSE, 0);
gtk_widget_show (widget);
g_object_bind_property (
search_bar, "active-search",
widget, "sensitive",
G_BINDING_SYNC_CREATE);
g_signal_connect_swapped (
widget, "clicked",
G_CALLBACK (search_bar_find_previous_cb), search_bar);
widget = gtk_button_new_with_mnemonic (_("_Next"));
gtk_button_set_image (
GTK_BUTTON (widget), gtk_image_new_from_stock (
GTK_STOCK_GO_FORWARD, GTK_ICON_SIZE_MENU));
gtk_button_set_relief (GTK_BUTTON (widget), GTK_RELIEF_NONE);
gtk_widget_set_tooltip_text (
widget, _("Find the next occurrence of the phrase"));
gtk_box_pack_start (GTK_BOX (container), widget, FALSE, FALSE, 0);
gtk_widget_show (widget);
g_object_bind_property (
search_bar, "active-search",
widget, "sensitive",
G_BINDING_SYNC_CREATE);
g_signal_connect_swapped (
widget, "clicked",
G_CALLBACK (search_bar_find_next_cb), search_bar);
widget = gtk_check_button_new_with_mnemonic (_("Mat_ch case"));
gtk_box_pack_start (GTK_BOX (container), widget, FALSE, FALSE, 0);
search_bar->priv->case_sensitive_button = g_object_ref (widget);
gtk_widget_show (widget);
g_signal_connect_swapped (
widget, "toggled",
G_CALLBACK (search_bar_toggled_cb), search_bar);
g_signal_connect_swapped (
widget, "toggled",
G_CALLBACK (search_bar_find_next_cb), search_bar);
container = GTK_WIDGET (search_bar);
widget = gtk_hbox_new (FALSE, 6);
gtk_box_pack_start (GTK_BOX (container), widget, TRUE, TRUE, 0);
search_bar->priv->wrapped_next_box = g_object_ref (widget);
gtk_widget_hide (widget);
container = widget;
widget = gtk_image_new_from_icon_name (
"wrapped", GTK_ICON_SIZE_MENU);
gtk_box_pack_start (GTK_BOX (container), widget, FALSE, FALSE, 0);
gtk_widget_show (widget);
widget = gtk_label_new (
_("Reached bottom of page, continued from top"));
gtk_label_set_ellipsize (
GTK_LABEL (widget), PANGO_ELLIPSIZE_END);
gtk_misc_set_alignment (GTK_MISC (widget), 0.0, 0.5);
gtk_box_pack_start (GTK_BOX (container), widget, TRUE, TRUE, 0);
gtk_widget_show (widget);
container = GTK_WIDGET (search_bar);
widget = gtk_hbox_new (FALSE, 6);
gtk_box_pack_start (GTK_BOX (container), widget, TRUE, TRUE, 0);
search_bar->priv->wrapped_prev_box = g_object_ref (widget);
gtk_widget_hide (widget);
container = widget;
widget = gtk_image_new_from_icon_name (
"wrapped", GTK_ICON_SIZE_MENU);
gtk_box_pack_start (GTK_BOX (container), widget, FALSE, FALSE, 0);
gtk_widget_show (widget);
widget = gtk_label_new (
_("Reached top of page, continued from bottom"));
gtk_label_set_ellipsize (
GTK_LABEL (widget), PANGO_ELLIPSIZE_END);
gtk_misc_set_alignment (GTK_MISC (widget), 0.0, 0.5);
gtk_box_pack_start (GTK_BOX (container), widget, TRUE, TRUE, 0);
gtk_widget_show (widget);
container = GTK_WIDGET (search_bar);
widget = gtk_label_new (NULL);
gtk_box_pack_end (GTK_BOX (container), widget, FALSE, FALSE, 12);
search_bar->priv->matches_label = g_object_ref (widget);
gtk_widget_show (widget);
}
GtkWidget *
e_search_bar_new (EWebView *web_view)
{
g_return_val_if_fail (E_IS_WEB_VIEW (web_view), NULL);
return g_object_new (
E_TYPE_SEARCH_BAR, "web-view", web_view, NULL);
}
void
e_search_bar_clear (ESearchBar *search_bar)
{
g_return_if_fail (E_IS_SEARCH_BAR (search_bar));
g_signal_emit (search_bar, signals[CLEAR], 0);
}
void
e_search_bar_changed (ESearchBar *search_bar)
{
g_return_if_fail (E_IS_SEARCH_BAR (search_bar));
g_signal_emit (search_bar, signals[CHANGED], 0);
}
EWebView *
e_search_bar_get_web_view (ESearchBar *search_bar)
{
g_return_val_if_fail (E_IS_SEARCH_BAR (search_bar), NULL);
return search_bar->priv->web_view;
}
ESearchingTokenizer *
e_search_bar_get_tokenizer (ESearchBar *search_bar)
{
g_return_val_if_fail (E_IS_SEARCH_BAR (search_bar), NULL);
return search_bar->priv->tokenizer;
}
gboolean
e_search_bar_get_active_search (ESearchBar *search_bar)
{
g_return_val_if_fail (E_IS_SEARCH_BAR (search_bar), FALSE);
return (search_bar->priv->active_search != NULL);
}
gboolean
e_search_bar_get_case_sensitive (ESearchBar *search_bar)
{
GtkToggleButton *button;
g_return_val_if_fail (E_IS_SEARCH_BAR (search_bar), FALSE);
button = GTK_TOGGLE_BUTTON (search_bar->priv->case_sensitive_button);
return gtk_toggle_button_get_active (button);
}
void
e_search_bar_set_case_sensitive (ESearchBar *search_bar,
gboolean case_sensitive)
{
GtkToggleButton *button;
g_return_if_fail (E_IS_SEARCH_BAR (search_bar));
button = GTK_TOGGLE_BUTTON (search_bar->priv->case_sensitive_button);
gtk_toggle_button_set_active (button, case_sensitive);
g_object_notify (G_OBJECT (search_bar), "case-sensitive");
}
gchar *
e_search_bar_get_text (ESearchBar *search_bar)
{
GtkEntry *entry;
const gchar *text;
g_return_val_if_fail (E_IS_SEARCH_BAR (search_bar), NULL);
entry = GTK_ENTRY (search_bar->priv->entry);
text = gtk_entry_get_text (entry);
return g_strstrip (g_strdup (text));
}
void
e_search_bar_set_text (ESearchBar *search_bar,
const gchar *text)
{
GtkEntry *entry;
g_return_if_fail (E_IS_SEARCH_BAR (search_bar));
entry = GTK_ENTRY (search_bar->priv->entry);
if (text == NULL)
text = "";
/* This will trigger a "notify::text" signal. */
gtk_entry_set_text (entry, text);
}