X-Git-Url: http://pileus.org/git/?a=blobdiff_plain;f=gtk%2Fgtklinkbutton.c;h=b5981c741f5ea55192dd40ddbeb9d8fb5e7b5f94;hb=1c796018d1dcba002766673c4070c9d98e95fadb;hp=0211f15c4450cb83a3019e5c03137788cfea008c;hpb=b140884fec56d0ac5f15fe3937879a7a1dd6f0c1;p=~andy%2Fgtk diff --git a/gtk/gtklinkbutton.c b/gtk/gtklinkbutton.c index 0211f15c4..b5981c741 100644 --- a/gtk/gtklinkbutton.c +++ b/gtk/gtklinkbutton.c @@ -1,12 +1,12 @@ /* GTK - The GIMP Toolkit * gtklinkbutton.c - an hyperlink-enabled button - * + * * Copyright (C) 2006 Emmanuele Bassi * All rights reserved. * * Based on gnome-href code by: - * James Henstridge - * + * James Henstridge + * * 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 @@ -18,8 +18,30 @@ * Library General Public License for more details. * * You should have received a copy of the GNU Library General Public - * License along with this library; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place - Suite 330, Cambridge, MA 02139, USA. + * License along with this library. If not, see . + */ + +/** + * SECTION:gtklinkbutton + * @Title: GtkLinkButton + * @Short_description: Create buttons bound to a URL + * @See_also: #GtkButton + * + * A GtkLinkButton is a #GtkButton with a hyperlink, similar to the one + * used by web browsers, which triggers an action when clicked. It is useful + * to show quick links to resources. + * + * A link button is created by calling either gtk_link_button_new() or + * gtk_link_button_new_with_label(). If using the former, the URI you pass + * to the constructor is used as a label for the widget. + * + * The URI bound to a GtkLinkButton can be set specifically using + * gtk_link_button_set_uri(), and retrieved using gtk_link_button_get_uri(). + * + * By default, GtkLinkButton calls gtk_show_uri() when the button is + * clicked. This behaviour can be overridden by connecting to the + * #GtkLinkButton::activate-link signal and returning %TRUE from the + * signal handler. */ #include "config.h" @@ -33,15 +55,17 @@ #include "gtkimagemenuitem.h" #include "gtklabel.h" #include "gtkmain.h" +#include "gtkmarshalers.h" #include "gtkmenu.h" #include "gtkmenuitem.h" #include "gtksizerequest.h" #include "gtkstock.h" #include "gtkshow.h" #include "gtktooltip.h" - +#include "gtkprivate.h" #include "gtkintl.h" +#include "a11y/gtklinkbuttonaccessible.h" struct _GtkLinkButtonPrivate { @@ -59,6 +83,12 @@ enum PROP_VISITED }; +enum +{ + ACTIVATE_LINK, + + LAST_SIGNAL +}; static void gtk_link_button_finalize (GObject *object); static void gtk_link_button_get_property (GObject *object, @@ -75,8 +105,8 @@ static gboolean gtk_link_button_button_press (GtkWidget *widget, GdkEventButton *event); static void gtk_link_button_clicked (GtkButton *button); static gboolean gtk_link_button_popup_menu (GtkWidget *widget); -static void gtk_link_button_style_set (GtkWidget *widget, - GtkStyle *old_style); +static void gtk_link_button_style_updated (GtkWidget *widget); +static void gtk_link_button_unrealize (GtkWidget *widget); static gboolean gtk_link_button_enter_cb (GtkWidget *widget, GdkEventCrossing *event, gpointer user_data); @@ -95,7 +125,7 @@ static gboolean gtk_link_button_query_tooltip_cb (GtkWidget *widget, gboolean keyboard_tip, GtkTooltip *tooltip, gpointer data); - +static gboolean gtk_link_button_activate_link (GtkLinkButton *link_button); static const GtkTargetEntry link_drop_types[] = { { "text/uri-list", 0, 0 }, @@ -105,9 +135,7 @@ static const GtkTargetEntry link_drop_types[] = { static const GdkColor default_link_color = { 0, 0, 0, 0xeeee }; static const GdkColor default_visited_link_color = { 0, 0x5555, 0x1a1a, 0x8b8b }; -static GtkLinkButtonUriFunc uri_func = NULL; -static gpointer uri_func_data = NULL; -static GDestroyNotify uri_func_destroy = NULL; +static guint link_signals[LAST_SIGNAL] = { 0, }; G_DEFINE_TYPE (GtkLinkButton, gtk_link_button, GTK_TYPE_BUTTON) @@ -125,16 +153,19 @@ gtk_link_button_class_init (GtkLinkButtonClass *klass) widget_class->button_press_event = gtk_link_button_button_press; widget_class->popup_menu = gtk_link_button_popup_menu; - widget_class->style_set = gtk_link_button_style_set; + widget_class->style_updated = gtk_link_button_style_updated; + widget_class->unrealize = gtk_link_button_unrealize; container_class->add = gtk_link_button_add; button_class->clicked = gtk_link_button_clicked; + klass->activate_link = gtk_link_button_activate_link; + /** - * GtkLinkButton:uri - * - * The URI bound to this button. + * GtkLinkButton:uri: + * + * The URI bound to this button. * * Since: 2.10 */ @@ -146,8 +177,8 @@ gtk_link_button_class_init (GtkLinkButtonClass *klass) NULL, G_PARAM_READWRITE)); /** - * GtkLinkButton:visited - * + * GtkLinkButton:visited: + * * The 'visited' state of this button. A visited link is drawn in a * different color. * @@ -162,6 +193,31 @@ gtk_link_button_class_init (GtkLinkButtonClass *klass) G_PARAM_READWRITE)); g_type_class_add_private (gobject_class, sizeof (GtkLinkButtonPrivate)); + + /** + * GtkLinkButton::activate-link: + * @button: the #GtkLinkButton that emitted the signal + * + * The ::activate-link signal is emitted each time the #GtkLinkButton + * has been clicked. + * + * The default handler will call gtk_show_uri() with the URI stored inside + * the #GtkLinkButton:uri property. + * + * To override the default behavior, you can connect to the ::activate-link + * signal and stop the propagation of the signal by returning %TRUE from + * your handler. + */ + link_signals[ACTIVATE_LINK] = + g_signal_new (I_("activate-link"), + G_TYPE_FROM_CLASS (klass), + G_SIGNAL_RUN_LAST, + G_STRUCT_OFFSET (GtkLinkButtonClass, activate_link), + _gtk_boolean_handled_accumulator, NULL, + _gtk_marshal_BOOLEAN__VOID, + G_TYPE_BOOLEAN, 0); + + gtk_widget_class_set_accessible_type (widget_class, GTK_TYPE_LINK_BUTTON_ACCESSIBLE); } static void @@ -250,6 +306,7 @@ set_link_color (GtkLinkButton *link_button) { GdkColor *link_color = NULL; GtkWidget *label; + GdkRGBA rgba; label = gtk_bin_get_child (GTK_BIN (link_button)); if (!GTK_IS_LABEL (label)) @@ -270,10 +327,14 @@ set_link_color (GtkLinkButton *link_button) link_color = (GdkColor *) &default_link_color; } - gtk_widget_modify_fg (label, GTK_STATE_NORMAL, link_color); - gtk_widget_modify_fg (label, GTK_STATE_ACTIVE, link_color); - gtk_widget_modify_fg (label, GTK_STATE_PRELIGHT, link_color); - gtk_widget_modify_fg (label, GTK_STATE_SELECTED, link_color); + rgba.red = link_color->red / 65535.; + rgba.green = link_color->green / 65535.; + rgba.blue = link_color->blue / 65535.; + rgba.alpha = 1; + gtk_widget_override_color (label, GTK_STATE_FLAG_NORMAL, &rgba); + gtk_widget_override_color (label, GTK_STATE_FLAG_ACTIVE, &rgba); + gtk_widget_override_color (label, GTK_STATE_FLAG_PRELIGHT, &rgba); + gtk_widget_override_color (label, GTK_STATE_FLAG_SELECTED, &rgba); if (link_color != &default_link_color && link_color != &default_visited_link_color) @@ -312,12 +373,11 @@ gtk_link_button_add (GtkContainer *container, } static void -gtk_link_button_style_set (GtkWidget *widget, - GtkStyle *old_style) +gtk_link_button_style_updated (GtkWidget *widget) { - GtkLinkButton *link_button = GTK_LINK_BUTTON (widget); + GTK_WIDGET_CLASS (gtk_link_button_parent_class)->style_updated (widget); - set_link_color (link_button); + set_link_color (GTK_LINK_BUTTON (widget)); } static void @@ -337,7 +397,15 @@ set_hand_cursor (GtkWidget *widget, gdk_display_flush (display); if (cursor) - gdk_cursor_unref (cursor); + g_object_unref (cursor); +} + +static void +gtk_link_button_unrealize (GtkWidget *widget) +{ + set_hand_cursor (widget, FALSE); + + GTK_WIDGET_CLASS (gtk_link_button_parent_class)->unrealize (widget); } static void @@ -369,8 +437,7 @@ popup_position_func (GtkMenu *menu, gdk_window_get_origin (gtk_widget_get_window (widget), x, y); - gtk_size_request_get_size (GTK_SIZE_REQUEST (priv->popup_menu), - &req, NULL); + gtk_widget_get_preferred_size (priv->popup_menu, &req, NULL); gtk_widget_get_allocation (widget, &allocation); *x += allocation.width / 2; @@ -378,7 +445,7 @@ popup_position_func (GtkMenu *menu, monitor_num = gdk_screen_get_monitor_at_point (screen, *x, *y); gtk_menu_set_monitor (menu, monitor_num); - gdk_screen_get_monitor_geometry (screen, monitor_num, &monitor); + gdk_screen_get_monitor_workarea (screen, monitor_num, &monitor); *x = CLAMP (*x, monitor.x, monitor.x + MAX (0, monitor.width - req.width)); *y = CLAMP (*y, monitor.y, monitor.y + MAX (0, monitor.height - req.height)); @@ -459,10 +526,13 @@ gtk_link_button_button_press (GtkWidget *widget, if (!gtk_widget_has_focus (widget)) gtk_widget_grab_focus (widget); - if ((event->button == 3) && (event->type == GDK_BUTTON_PRESS)) + /* Don't popup the menu if there's no URI set, + * otherwise the menu item will trigger a warning */ + if (gdk_event_triggers_context_menu ((GdkEvent *) event) && + GTK_LINK_BUTTON (widget)->priv->uri != NULL) { gtk_link_button_do_popup (GTK_LINK_BUTTON (widget), event); - + return TRUE; } @@ -472,35 +542,40 @@ gtk_link_button_button_press (GtkWidget *widget, return FALSE; } -static void -gtk_link_button_clicked (GtkButton *button) +static gboolean +gtk_link_button_activate_link (GtkLinkButton *link_button) { - GtkLinkButton *link_button = GTK_LINK_BUTTON (button); + GdkScreen *screen; + GError *error; - if (uri_func) - (* uri_func) (link_button, link_button->priv->uri, uri_func_data); + if (gtk_widget_has_screen (GTK_WIDGET (link_button))) + screen = gtk_widget_get_screen (GTK_WIDGET (link_button)); else - { - GdkScreen *screen; - GError *error; + screen = NULL; - if (gtk_widget_has_screen (GTK_WIDGET (button))) - screen = gtk_widget_get_screen (GTK_WIDGET (button)); - else - screen = NULL; + error = NULL; + gtk_show_uri (screen, link_button->priv->uri, GDK_CURRENT_TIME, &error); + if (error) + { + g_warning ("Unable to show '%s': %s", + link_button->priv->uri, + error->message); + g_error_free (error); - error = NULL; - gtk_show_uri (screen, link_button->priv->uri, GDK_CURRENT_TIME, &error); - if (error) - { - g_warning ("Unable to show '%s': %s", - link_button->priv->uri, - error->message); - g_error_free (error); - } + return FALSE; } gtk_link_button_set_visited (link_button, TRUE); + + return TRUE; +} + +static void +gtk_link_button_clicked (GtkButton *button) +{ + gboolean retval = FALSE; + + g_signal_emit (button, link_signals[ACTIVATE_LINK], 0, &retval); } static gboolean @@ -544,7 +619,7 @@ gtk_link_button_drag_data_get_cb (GtkWidget *widget, uri = g_strdup_printf ("%s\r\n", link_button->priv->uri); gtk_selection_data_set (selection, - selection->target, + gtk_selection_data_get_target (selection), 8, (guchar *) uri, strlen (uri)); @@ -697,7 +772,7 @@ gtk_link_button_set_uri (GtkLinkButton *link_button, * * Since: 2.10 */ -G_CONST_RETURN gchar * +const gchar * gtk_link_button_get_uri (GtkLinkButton *link_button) { g_return_val_if_fail (GTK_IS_LINK_BUTTON (link_button), NULL); @@ -705,41 +780,6 @@ gtk_link_button_get_uri (GtkLinkButton *link_button) return link_button->priv->uri; } -/** - * gtk_link_button_set_uri_hook: - * @func: (allow-none): a function called each time a #GtkLinkButton is clicked, or %NULL - * @data: (allow-none): user data to be passed to @func, or %NULL - * @destroy: (allow-none): a #GDestroyNotify that gets called when @data is no longer needed, or %NULL - * - * Sets @func as the function that should be invoked every time a user clicks - * a #GtkLinkButton. This function is called before every callback registered - * for the "clicked" signal. - * - * If no uri hook has been set, GTK+ defaults to calling gtk_show_uri(). - * - * Return value: the previously set hook function. - * - * Since: 2.10 - */ -GtkLinkButtonUriFunc -gtk_link_button_set_uri_hook (GtkLinkButtonUriFunc func, - gpointer data, - GDestroyNotify destroy) -{ - GtkLinkButtonUriFunc old_uri_func; - - if (uri_func_destroy) - (* uri_func_destroy) (uri_func_data); - - old_uri_func = uri_func; - - uri_func = func; - uri_func_data = data; - uri_func_destroy = destroy; - - return old_uri_func; -} - /** * gtk_link_button_set_visited: * @link_button: a #GtkLinkButton