diff options
Diffstat (limited to 'shell/eggfindbar.c')
| -rw-r--r-- | shell/eggfindbar.c | 740 |
1 files changed, 740 insertions, 0 deletions
diff --git a/shell/eggfindbar.c b/shell/eggfindbar.c new file mode 100644 index 00000000..a00e74ed --- /dev/null +++ b/shell/eggfindbar.c @@ -0,0 +1,740 @@ +/* Copyright (C) 2004 Red Hat, Inc. + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Library General Public License as + * published by the Free Software Foundation; either version 2 of the + * License, or (at your option) any later version. + * + * This library 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 + * Library General Public License for more details. + * + * You should have received a copy of the GNU Library General Public + * License along with the Mate Library; see the file COPYING.LIB. If not, + * write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, + * Boston, MA 02110-1301, USA. + */ + +#include "config.h" + +#include <string.h> + +#include <glib/gi18n.h> +#include <gtk/gtk.h> +#include <gdk/gdkkeysyms.h> + +#include "eggfindbar.h" + +struct _EggFindBarPrivate +{ + gchar *search_string; + + GtkToolItem *next_button; + GtkToolItem *previous_button; + GtkToolItem *status_separator; + GtkToolItem *status_item; + GtkToolItem *case_button; + + GtkWidget *find_entry; + GtkWidget *status_label; + + gulong set_focus_handler; + guint case_sensitive : 1; +}; + +#define EGG_FIND_BAR_GET_PRIVATE(obj) (G_TYPE_INSTANCE_GET_PRIVATE ((obj), EGG_TYPE_FIND_BAR, EggFindBarPrivate)) + +enum { + PROP_0, + PROP_SEARCH_STRING, + PROP_CASE_SENSITIVE +}; + +static void egg_find_bar_finalize (GObject *object); +static void egg_find_bar_get_property (GObject *object, + guint prop_id, + GValue *value, + GParamSpec *pspec); +static void egg_find_bar_set_property (GObject *object, + guint prop_id, + const GValue *value, + GParamSpec *pspec); +static void egg_find_bar_show (GtkWidget *widget); +static void egg_find_bar_hide (GtkWidget *widget); +static void egg_find_bar_grab_focus (GtkWidget *widget); + +G_DEFINE_TYPE (EggFindBar, egg_find_bar, GTK_TYPE_TOOLBAR); + +enum + { + NEXT, + PREVIOUS, + CLOSE, + SCROLL, + LAST_SIGNAL + }; + +static guint find_bar_signals[LAST_SIGNAL] = { 0 }; + +static void +egg_find_bar_class_init (EggFindBarClass *klass) +{ + GObjectClass *object_class; + GtkWidgetClass *widget_class; + GtkBindingSet *binding_set; + + egg_find_bar_parent_class = g_type_class_peek_parent (klass); + + object_class = (GObjectClass *)klass; + widget_class = (GtkWidgetClass *)klass; + + object_class->set_property = egg_find_bar_set_property; + object_class->get_property = egg_find_bar_get_property; + + object_class->finalize = egg_find_bar_finalize; + + widget_class->show = egg_find_bar_show; + widget_class->hide = egg_find_bar_hide; + + widget_class->grab_focus = egg_find_bar_grab_focus; + + find_bar_signals[NEXT] = + g_signal_new ("next", + G_OBJECT_CLASS_TYPE (object_class), + G_SIGNAL_RUN_FIRST, + G_STRUCT_OFFSET (EggFindBarClass, next), + NULL, NULL, + g_cclosure_marshal_VOID__VOID, + G_TYPE_NONE, 0); + find_bar_signals[PREVIOUS] = + g_signal_new ("previous", + G_OBJECT_CLASS_TYPE (object_class), + G_SIGNAL_RUN_FIRST, + G_STRUCT_OFFSET (EggFindBarClass, previous), + NULL, NULL, + g_cclosure_marshal_VOID__VOID, + G_TYPE_NONE, 0); + find_bar_signals[CLOSE] = + g_signal_new ("close", + G_OBJECT_CLASS_TYPE (object_class), + G_SIGNAL_RUN_FIRST | G_SIGNAL_ACTION, + G_STRUCT_OFFSET (EggFindBarClass, close), + NULL, NULL, + g_cclosure_marshal_VOID__VOID, + G_TYPE_NONE, 0); + find_bar_signals[SCROLL] = + g_signal_new ("scroll", + G_OBJECT_CLASS_TYPE (object_class), + G_SIGNAL_RUN_FIRST | G_SIGNAL_ACTION, + G_STRUCT_OFFSET (EggFindBarClass, scroll), + NULL, NULL, + g_cclosure_marshal_VOID__ENUM, + G_TYPE_NONE, 1, + GTK_TYPE_SCROLL_TYPE); + + /** + * EggFindBar:search_string: + * + * The current string to search for. NULL or empty string + * both mean no current string. + * + */ + g_object_class_install_property (object_class, + PROP_SEARCH_STRING, + g_param_spec_string ("search_string", + "Search string", + "The name of the string to be found", + NULL, + G_PARAM_READWRITE)); + + /** + * EggFindBar:case_sensitive: + * + * TRUE for a case sensitive search. + * + */ + g_object_class_install_property (object_class, + PROP_CASE_SENSITIVE, + g_param_spec_boolean ("case_sensitive", + "Case sensitive", + "TRUE for a case sensitive search", + FALSE, + G_PARAM_READWRITE)); + + /* Style properties */ + gtk_widget_class_install_style_property (widget_class, + g_param_spec_boxed ("all_matches_color", + "Highlight color", + "Color of highlight for all matches", + GDK_TYPE_COLOR, + G_PARAM_READABLE)); + + gtk_widget_class_install_style_property (widget_class, + g_param_spec_boxed ("current_match_color", + "Current color", + "Color of highlight for the current match", + GDK_TYPE_COLOR, + G_PARAM_READABLE)); + + g_type_class_add_private (object_class, sizeof (EggFindBarPrivate)); + + binding_set = gtk_binding_set_by_class (klass); + + gtk_binding_entry_add_signal (binding_set, GDK_Escape, 0, + "close", 0); + + gtk_binding_entry_add_signal (binding_set, GDK_Up, 0, + "scroll", 1, + GTK_TYPE_SCROLL_TYPE, GTK_SCROLL_STEP_BACKWARD); + gtk_binding_entry_add_signal (binding_set, GDK_Down, 0, + "scroll", 1, + GTK_TYPE_SCROLL_TYPE, GTK_SCROLL_STEP_FORWARD); + gtk_binding_entry_add_signal (binding_set, GDK_Page_Up, 0, + "scroll", 1, + GTK_TYPE_SCROLL_TYPE, GTK_SCROLL_PAGE_BACKWARD); + gtk_binding_entry_add_signal (binding_set, GDK_KP_Page_Up, 0, + "scroll", 1, + GTK_TYPE_SCROLL_TYPE, GTK_SCROLL_PAGE_BACKWARD); + gtk_binding_entry_add_signal (binding_set, GDK_Page_Down, 0, + "scroll", 1, + GTK_TYPE_SCROLL_TYPE, GTK_SCROLL_PAGE_FORWARD); + gtk_binding_entry_add_signal (binding_set, GDK_KP_Page_Down, 0, + "scroll", 1, + GTK_TYPE_SCROLL_TYPE, GTK_SCROLL_PAGE_FORWARD); +} + +static void +egg_find_bar_emit_next (EggFindBar *find_bar) +{ + g_signal_emit (find_bar, find_bar_signals[NEXT], 0); +} + +static void +egg_find_bar_emit_previous (EggFindBar *find_bar) +{ + g_signal_emit (find_bar, find_bar_signals[PREVIOUS], 0); +} + +static void +next_clicked_callback (GtkButton *button, + void *data) +{ + EggFindBar *find_bar = EGG_FIND_BAR (data); + + egg_find_bar_emit_next (find_bar); +} + +static void +previous_clicked_callback (GtkButton *button, + void *data) +{ + EggFindBar *find_bar = EGG_FIND_BAR (data); + + egg_find_bar_emit_previous (find_bar); +} + +static void +case_sensitive_toggled_callback (GtkCheckButton *button, + void *data) +{ + EggFindBar *find_bar = EGG_FIND_BAR (data); + + egg_find_bar_set_case_sensitive (find_bar, + gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON (button))); +} + +static void +entry_activate_callback (GtkEntry *entry, + void *data) +{ + EggFindBar *find_bar = EGG_FIND_BAR (data); + + if (find_bar->priv->search_string != NULL) + egg_find_bar_emit_next (find_bar); +} + +static void +entry_changed_callback (GtkEntry *entry, + void *data) +{ + EggFindBar *find_bar = EGG_FIND_BAR (data); + char *text; + + /* paranoid strdup because set_search_string() sets + * the entry text + */ + text = g_strdup (gtk_entry_get_text (entry)); + + egg_find_bar_set_search_string (find_bar, text); + + g_free (text); +} + +static void +set_focus_cb (GtkWidget *window, + GtkWidget *widget, + EggFindBar *bar) +{ + GtkWidget *wbar = GTK_WIDGET (bar); + + while (widget != NULL && widget != wbar) + { + widget = gtk_widget_get_parent (widget); + } + + /* if widget == bar, the new focus widget is in the bar, so we + * don't deactivate. + */ + if (widget != wbar) + { + g_signal_emit (bar, find_bar_signals[CLOSE], 0); + } +} + +static void +egg_find_bar_init (EggFindBar *find_bar) +{ + EggFindBarPrivate *priv; + GtkWidget *label; + GtkWidget *alignment; + GtkWidget *box; + GtkToolItem *item; + GtkWidget *arrow; + + /* Data */ + priv = EGG_FIND_BAR_GET_PRIVATE (find_bar); + + find_bar->priv = priv; + priv->search_string = NULL; + + gtk_toolbar_set_style (GTK_TOOLBAR (find_bar), GTK_TOOLBAR_BOTH_HORIZ); + + /* Find: |_____| */ + item = gtk_tool_item_new (); + box = gtk_hbox_new (FALSE, 12); + + alignment = gtk_alignment_new (0.0, 0.5, 1.0, 0.0); + gtk_alignment_set_padding (GTK_ALIGNMENT (alignment), 0, 0, 2, 2); + + label = gtk_label_new_with_mnemonic (_("Find:")); + + priv->find_entry = gtk_entry_new (); + gtk_entry_set_width_chars (GTK_ENTRY (priv->find_entry), 32); + gtk_entry_set_max_length (GTK_ENTRY (priv->find_entry), 512); + gtk_label_set_mnemonic_widget (GTK_LABEL (label), priv->find_entry); + + /* Prev */ + arrow = gtk_arrow_new (GTK_ARROW_LEFT, GTK_SHADOW_NONE); + priv->previous_button = gtk_tool_button_new (arrow, Q_("Find Pre_vious")); + gtk_tool_button_set_use_underline (GTK_TOOL_BUTTON (priv->previous_button), TRUE); + gtk_tool_item_set_is_important (priv->previous_button, TRUE); + gtk_widget_set_tooltip_text (GTK_WIDGET (priv->previous_button), + _("Find previous occurrence of the search string")); + + /* Next */ + arrow = gtk_arrow_new (GTK_ARROW_RIGHT, GTK_SHADOW_NONE); + priv->next_button = gtk_tool_button_new (arrow, Q_("Find Ne_xt")); + gtk_tool_button_set_use_underline (GTK_TOOL_BUTTON (priv->next_button), TRUE); + gtk_tool_item_set_is_important (priv->next_button, TRUE); + gtk_widget_set_tooltip_text (GTK_WIDGET (priv->next_button), + _("Find next occurrence of the search string")); + + /* Separator*/ + priv->status_separator = gtk_separator_tool_item_new(); + + /* Case button */ + priv->case_button = gtk_toggle_tool_button_new (); + g_object_set (G_OBJECT (priv->case_button), "label", _("C_ase Sensitive"), NULL); + gtk_tool_item_set_is_important (priv->case_button, TRUE); + gtk_widget_set_tooltip_text (GTK_WIDGET (priv->case_button), + _("Toggle case sensitive search")); + + /* Status */ + priv->status_item = gtk_tool_item_new(); + gtk_tool_item_set_expand (priv->status_item, TRUE); + priv->status_label = gtk_label_new (NULL); + gtk_label_set_ellipsize (GTK_LABEL (priv->status_label), + PANGO_ELLIPSIZE_END); + gtk_misc_set_alignment (GTK_MISC (priv->status_label), 0.0, 0.5); + + + g_signal_connect (priv->find_entry, "changed", + G_CALLBACK (entry_changed_callback), + find_bar); + g_signal_connect (priv->find_entry, "activate", + G_CALLBACK (entry_activate_callback), + find_bar); + g_signal_connect (priv->next_button, "clicked", + G_CALLBACK (next_clicked_callback), + find_bar); + g_signal_connect (priv->previous_button, "clicked", + G_CALLBACK (previous_clicked_callback), + find_bar); + g_signal_connect (priv->case_button, "toggled", + G_CALLBACK (case_sensitive_toggled_callback), + find_bar); + + gtk_box_pack_start (GTK_BOX (box), label, FALSE, FALSE, 0); + gtk_box_pack_start (GTK_BOX (box), priv->find_entry, TRUE, TRUE, 0); + gtk_container_add (GTK_CONTAINER (alignment), box); + gtk_container_add (GTK_CONTAINER (item), alignment); + gtk_toolbar_insert (GTK_TOOLBAR (find_bar), item, -1); + gtk_toolbar_insert (GTK_TOOLBAR (find_bar), priv->previous_button, -1); + gtk_toolbar_insert (GTK_TOOLBAR (find_bar), priv->next_button, -1); + gtk_toolbar_insert (GTK_TOOLBAR (find_bar), priv->case_button, -1); + gtk_toolbar_insert (GTK_TOOLBAR (find_bar), priv->status_separator, -1); + gtk_container_add (GTK_CONTAINER (priv->status_item), priv->status_label); + gtk_toolbar_insert (GTK_TOOLBAR (find_bar), priv->status_item, -1); + + /* don't show status separator/label until they are set */ + + gtk_widget_show_all (GTK_WIDGET (item)); + gtk_widget_show_all (GTK_WIDGET (priv->next_button)); + gtk_widget_show_all (GTK_WIDGET (priv->previous_button)); + gtk_widget_show (priv->status_label); +} + +static void +egg_find_bar_finalize (GObject *object) +{ + EggFindBar *find_bar = EGG_FIND_BAR (object); + EggFindBarPrivate *priv = (EggFindBarPrivate *)find_bar->priv; + + g_free (priv->search_string); + + G_OBJECT_CLASS (egg_find_bar_parent_class)->finalize (object); +} + +static void +egg_find_bar_set_property (GObject *object, + guint prop_id, + const GValue *value, + GParamSpec *pspec) +{ + EggFindBar *find_bar = EGG_FIND_BAR (object); + + switch (prop_id) + { + case PROP_SEARCH_STRING: + egg_find_bar_set_search_string (find_bar, g_value_get_string (value)); + break; + case PROP_CASE_SENSITIVE: + egg_find_bar_set_case_sensitive (find_bar, g_value_get_boolean (value)); + break; + default: + G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); + break; + } +} + +static void +egg_find_bar_get_property (GObject *object, + guint prop_id, + GValue *value, + GParamSpec *pspec) +{ + EggFindBar *find_bar = EGG_FIND_BAR (object); + EggFindBarPrivate *priv = (EggFindBarPrivate *)find_bar->priv; + + switch (prop_id) + { + case PROP_SEARCH_STRING: + g_value_set_string (value, priv->search_string); + break; + case PROP_CASE_SENSITIVE: + g_value_set_boolean (value, priv->case_sensitive); + break; + default: + G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); + break; + } +} + +static void +egg_find_bar_show (GtkWidget *widget) +{ + EggFindBar *bar = EGG_FIND_BAR (widget); + EggFindBarPrivate *priv = bar->priv; + + GTK_WIDGET_CLASS (egg_find_bar_parent_class)->show (widget); + + if (priv->set_focus_handler == 0) + { + GtkWidget *toplevel; + + toplevel = gtk_widget_get_toplevel (widget); + + priv->set_focus_handler = + g_signal_connect (toplevel, "set-focus", + G_CALLBACK (set_focus_cb), bar); + } +} + +static void +egg_find_bar_hide (GtkWidget *widget) +{ + EggFindBar *bar = EGG_FIND_BAR (widget); + EggFindBarPrivate *priv = bar->priv; + + if (priv->set_focus_handler != 0) + { + GtkWidget *toplevel; + + toplevel = gtk_widget_get_toplevel (widget); + + g_signal_handlers_disconnect_by_func + (toplevel, (void (*)) G_CALLBACK (set_focus_cb), bar); + priv->set_focus_handler = 0; + } + + GTK_WIDGET_CLASS (egg_find_bar_parent_class)->hide (widget); +} + +static void +egg_find_bar_grab_focus (GtkWidget *widget) +{ + EggFindBar *find_bar = EGG_FIND_BAR (widget); + EggFindBarPrivate *priv = find_bar->priv; + + gtk_widget_grab_focus (priv->find_entry); +} + +/** + * egg_find_bar_new: + * + * Creates a new #EggFindBar. + * + * Returns: a newly created #EggFindBar + * + * Since: 2.6 + */ +GtkWidget * +egg_find_bar_new (void) +{ + EggFindBar *find_bar; + + find_bar = g_object_new (EGG_TYPE_FIND_BAR, NULL); + + return GTK_WIDGET (find_bar); +} + +/** + * egg_find_bar_set_search_string: + * + * Sets the string that should be found/highlighted in the document. + * Empty string is converted to NULL. + * + * Since: 2.6 + */ +void +egg_find_bar_set_search_string (EggFindBar *find_bar, + const char *search_string) +{ + EggFindBarPrivate *priv; + + g_return_if_fail (EGG_IS_FIND_BAR (find_bar)); + + priv = (EggFindBarPrivate *)find_bar->priv; + + g_object_freeze_notify (G_OBJECT (find_bar)); + + if (priv->search_string != search_string) + { + char *old; + + old = priv->search_string; + + if (search_string && *search_string == '\0') + search_string = NULL; + + /* Only update if the string has changed; setting the entry + * will emit changed on the entry which will re-enter + * this function, but we'll handle that fine with this + * short-circuit. + */ + if ((old && search_string == NULL) || + (old == NULL && search_string) || + (old && search_string && + strcmp (old, search_string) != 0)) + { + gboolean not_empty; + + priv->search_string = g_strdup (search_string); + g_free (old); + + gtk_entry_set_text (GTK_ENTRY (priv->find_entry), + priv->search_string ? + priv->search_string : + ""); + + not_empty = (search_string == NULL) ? FALSE : TRUE; + + gtk_widget_set_sensitive (GTK_WIDGET (find_bar->priv->next_button), not_empty); + gtk_widget_set_sensitive (GTK_WIDGET (find_bar->priv->previous_button), not_empty); + + g_object_notify (G_OBJECT (find_bar), + "search_string"); + } + } + + g_object_thaw_notify (G_OBJECT (find_bar)); +} + + +/** + * egg_find_bar_get_search_string: + * + * Gets the string that should be found/highlighted in the document. + * + * Returns: the string + * + * Since: 2.6 + */ +const char* +egg_find_bar_get_search_string (EggFindBar *find_bar) +{ + EggFindBarPrivate *priv; + + g_return_val_if_fail (EGG_IS_FIND_BAR (find_bar), NULL); + + priv = find_bar->priv; + + return priv->search_string ? priv->search_string : ""; +} + +/** + * egg_find_bar_set_case_sensitive: + * + * Sets whether the search is case sensitive + * + * Since: 2.6 + */ +void +egg_find_bar_set_case_sensitive (EggFindBar *find_bar, + gboolean case_sensitive) +{ + EggFindBarPrivate *priv; + + g_return_if_fail (EGG_IS_FIND_BAR (find_bar)); + + priv = (EggFindBarPrivate *)find_bar->priv; + + g_object_freeze_notify (G_OBJECT (find_bar)); + + case_sensitive = case_sensitive != FALSE; + + if (priv->case_sensitive != case_sensitive) + { + priv->case_sensitive = case_sensitive; + + gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (priv->case_button), + priv->case_sensitive); + + g_object_notify (G_OBJECT (find_bar), + "case_sensitive"); + } + + g_object_thaw_notify (G_OBJECT (find_bar)); +} + +/** + * egg_find_bar_get_case_sensitive: + * + * Gets whether the search is case sensitive + * + * Returns: TRUE if it's case sensitive + * + * Since: 2.6 + */ +gboolean +egg_find_bar_get_case_sensitive (EggFindBar *find_bar) +{ + EggFindBarPrivate *priv; + + g_return_val_if_fail (EGG_IS_FIND_BAR (find_bar), FALSE); + + priv = (EggFindBarPrivate *)find_bar->priv; + + return priv->case_sensitive; +} + +static void +get_style_color (EggFindBar *find_bar, + const char *style_prop_name, + GdkColor *color) +{ + GdkColor *style_color; + + gtk_widget_ensure_style (GTK_WIDGET (find_bar)); + gtk_widget_style_get (GTK_WIDGET (find_bar), + "color", &style_color, NULL); + if (style_color) + { + *color = *style_color; + gdk_color_free (style_color); + } +} + +/** + * egg_find_bar_get_all_matches_color: + * + * Gets the color to use to highlight all the + * known matches. + * + * Since: 2.6 + */ +void +egg_find_bar_get_all_matches_color (EggFindBar *find_bar, + GdkColor *color) +{ + GdkColor found_color = { 0, 0, 0, 0x0f0f }; + + get_style_color (find_bar, "all_matches_color", &found_color); + + *color = found_color; +} + +/** + * egg_find_bar_get_current_match_color: + * + * Gets the color to use to highlight the match + * we're currently on. + * + * Since: 2.6 + */ +void +egg_find_bar_get_current_match_color (EggFindBar *find_bar, + GdkColor *color) +{ + GdkColor found_color = { 0, 0, 0, 0xffff }; + + get_style_color (find_bar, "current_match_color", &found_color); + + *color = found_color; +} + +/** + * egg_find_bar_set_status_text: + * + * Sets some text to display if there's space; typical text would + * be something like "5 results on this page" or "No results" + * + * @text: the text to display + * + * Since: 2.6 + */ +void +egg_find_bar_set_status_text (EggFindBar *find_bar, + const char *text) +{ + EggFindBarPrivate *priv; + + g_return_if_fail (EGG_IS_FIND_BAR (find_bar)); + + priv = (EggFindBarPrivate *)find_bar->priv; + + gtk_label_set_text (GTK_LABEL (priv->status_label), text); + g_object_set (priv->status_separator, "visible", text != NULL && *text != '\0', NULL); + g_object_set (priv->status_item, "visible", text != NULL && *text !='\0', NULL); +} |