diff options
Diffstat (limited to 'libmisc/ev-page-action.c')
| -rw-r--r-- | libmisc/ev-page-action.c | 416 |
1 files changed, 416 insertions, 0 deletions
diff --git a/libmisc/ev-page-action.c b/libmisc/ev-page-action.c new file mode 100644 index 0000000..f2a1536 --- /dev/null +++ b/libmisc/ev-page-action.c @@ -0,0 +1,416 @@ +/* + * Copyright (C) 2003, 2004 Marco Pesenti Gritti + * Copyright (C) 2003, 2004 Christian Persch + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2, or (at your option) + * any later version. + * + * 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 General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + * + */ + +#ifdef HAVE_CONFIG_H +#include "config.h" +#endif + +#include <string.h> +#include <stdlib.h> + +#include <glib/gi18n.h> +#include <gtk/gtk.h> + +#include "ev-page-action.h" +#include "ev-page-action-widget.h" + +struct _EvPageActionPrivate +{ + EvPageCache *page_cache; + GtkTreeModel *model; +}; + + +static void ev_page_action_init (EvPageAction *action); +static void ev_page_action_class_init (EvPageActionClass *class); + +enum +{ + ACTIVATE_LINK, + N_SIGNALS +}; + +static guint signals[N_SIGNALS] = {0, }; + +G_DEFINE_TYPE (EvPageAction, ev_page_action, GTK_TYPE_ACTION) + +#define EV_PAGE_ACTION_GET_PRIVATE(object)(G_TYPE_INSTANCE_GET_PRIVATE ((object), EV_TYPE_PAGE_ACTION, EvPageActionPrivate)) + +enum { + PROP_0, + PROP_PAGE_CACHE, + PROP_MODEL, +}; + +static void +update_pages_label (EvPageActionWidget *proxy, + gint page, + EvPageCache *page_cache) +{ + char *label_text; + gint n_pages; + + n_pages = page_cache ? ev_page_cache_get_n_pages (page_cache) : 0; + if (page_cache && ev_page_cache_has_nonnumeric_page_labels (page_cache)) { + label_text = g_strdup_printf (_("(%d of %d)"), page + 1, n_pages); + } else { + label_text = g_strdup_printf (_("of %d"), n_pages); + } + gtk_label_set_text (GTK_LABEL (proxy->label), label_text); + g_free (label_text); +} + +static void +page_changed_cb (EvPageCache *page_cache, + gint page, + EvPageActionWidget *proxy) +{ + g_assert (proxy); + + if (page_cache != NULL && page >= 0) { + gchar *page_label; + + gtk_entry_set_width_chars (GTK_ENTRY (proxy->entry), + CLAMP (ev_page_cache_get_max_label_chars (page_cache), + 6, 12)); + + page_label = ev_page_cache_get_page_label (page_cache, page); + gtk_entry_set_text (GTK_ENTRY (proxy->entry), page_label); + gtk_editable_set_position (GTK_EDITABLE (proxy->entry), -1); + g_free (page_label); + + } else { + gtk_entry_set_text (GTK_ENTRY (proxy->entry), ""); + } + + update_pages_label (proxy, page, page_cache); +} + +static void +activate_cb (GtkWidget *entry, GtkAction *action) +{ + EvPageAction *page = EV_PAGE_ACTION (action); + EvPageCache *page_cache; + const char *text; + gchar *page_label; + + EvLinkDest *link_dest; + EvLinkAction *link_action; + EvLink *link; + gchar *link_text; + + text = gtk_entry_get_text (GTK_ENTRY (entry)); + page_cache = page->priv->page_cache; + + + link_dest = ev_link_dest_new_page_label (text); + link_action = ev_link_action_new_dest (link_dest); + link_text = g_strdup_printf ("Page: %s", text); + link = ev_link_new (link_text, link_action); + + g_signal_emit (action, signals[ACTIVATE_LINK], 0, link); + + g_object_unref (link); + g_free (link_text); + + /* rest the entry to the current page if we were unable to + * change it */ + page_label = ev_page_cache_get_page_label (page_cache, + ev_page_cache_get_current_page (page_cache)); + gtk_entry_set_text (GTK_ENTRY (entry), page_label); + gtk_editable_set_position (GTK_EDITABLE (entry), -1); + g_free (page_label); +} + +static gboolean page_scroll_cb(GtkWidget *widget, GdkEventScroll *event, EvPageAction* action) +{ + gint pageno; + + pageno = ev_page_cache_get_current_page (action->priv->page_cache); + if ((event->direction == GDK_SCROLL_DOWN) && + (pageno < ev_page_cache_get_n_pages(action->priv->page_cache) - 1)) + pageno++; + if ((event->direction == GDK_SCROLL_UP) && (pageno > 0)) + pageno--; + ev_page_cache_set_current_page (action->priv->page_cache, pageno); + + return TRUE; +} + +static GtkWidget * +create_tool_item (GtkAction *action) +{ + EvPageActionWidget *proxy; + GtkWidget *hbox; + AtkObject *obj; + + proxy = g_object_new (ev_page_action_widget_get_type (), NULL); + gtk_container_set_border_width (GTK_CONTAINER (proxy), 6); + gtk_widget_show (GTK_WIDGET (proxy)); + + hbox = gtk_hbox_new (FALSE, 0); + gtk_box_set_spacing (GTK_BOX (hbox), 6); + + proxy->entry = gtk_entry_new (); + obj = gtk_widget_get_accessible (proxy->entry); + atk_object_set_name (obj, "page-label-entry"); + + g_signal_connect(proxy->entry, "scroll-event",G_CALLBACK(page_scroll_cb),action); + gtk_widget_add_events(GTK_WIDGET(proxy->entry),GDK_BUTTON_MOTION_MASK); + gtk_entry_set_width_chars (GTK_ENTRY (proxy->entry), 5); + gtk_box_pack_start (GTK_BOX (hbox), proxy->entry, FALSE, FALSE, 0); + gtk_widget_show (proxy->entry); + g_signal_connect (proxy->entry, "activate", + G_CALLBACK (activate_cb), + action); + + proxy->label = gtk_label_new (NULL); + gtk_box_pack_start (GTK_BOX (hbox), proxy->label, FALSE, FALSE, 0); + gtk_widget_show (proxy->label); + + gtk_container_add (GTK_CONTAINER (proxy), hbox); + gtk_widget_show (hbox); + + return GTK_WIDGET (proxy); +} + +static void +update_page_cache (EvPageAction *page, GParamSpec *pspec, EvPageActionWidget *proxy) +{ + EvPageCache *page_cache; + guint signal_id; + + page_cache = page->priv->page_cache; + + /* clear the old signal */ + if (proxy->signal_id > 0 && proxy->page_cache) + g_signal_handler_disconnect (proxy->page_cache, proxy->signal_id); + + if (page_cache != NULL) { + signal_id = g_signal_connect_object (page_cache, + "page-changed", + G_CALLBACK (page_changed_cb), + proxy, 0); + /* Set the initial value */ + page_changed_cb (page_cache, + ev_page_cache_get_current_page (page_cache), + proxy); + } else { + /* Or clear the entry */ + signal_id = 0; + page_changed_cb (NULL, 0, proxy); + } + ev_page_action_widget_set_page_cache (proxy, page_cache); + proxy->signal_id = signal_id; +} + +static void +activate_link_cb (EvPageActionWidget *proxy, EvLink *link, EvPageAction *action) +{ + g_signal_emit (action, signals[ACTIVATE_LINK], 0, link); +} + +static void +update_model (EvPageAction *page, GParamSpec *pspec, EvPageActionWidget *proxy) +{ + GtkTreeModel *model; + + g_object_get (G_OBJECT (page), + "model", &model, + NULL); + + ev_page_action_widget_update_model (proxy, model); +} + +static void +connect_proxy (GtkAction *action, GtkWidget *proxy) +{ + if (GTK_IS_TOOL_ITEM (proxy)) { + g_signal_connect_object (action, "notify::page-cache", + G_CALLBACK (update_page_cache), + proxy, 0); + g_signal_connect (proxy, "activate_link", + G_CALLBACK (activate_link_cb), + action); + update_page_cache (EV_PAGE_ACTION (action), NULL, + EV_PAGE_ACTION_WIDGET (proxy)); + g_signal_connect_object (action, "notify::model", + G_CALLBACK (update_model), + proxy, 0); + } + + GTK_ACTION_CLASS (ev_page_action_parent_class)->connect_proxy (action, proxy); +} + +static void +ev_page_action_dispose (GObject *object) +{ + EvPageAction *page = EV_PAGE_ACTION (object); + + if (page->priv->page_cache) { + g_object_unref (page->priv->page_cache); + page->priv->page_cache = NULL; + } + + G_OBJECT_CLASS (ev_page_action_parent_class)->dispose (object); +} + +static void +ev_page_action_set_property (GObject *object, + guint prop_id, + const GValue *value, + GParamSpec *pspec) +{ + EvPageAction *page; + EvPageCache *page_cache; + GtkTreeModel *model; + + page = EV_PAGE_ACTION (object); + + switch (prop_id) + { + case PROP_PAGE_CACHE: + page_cache = page->priv->page_cache; + page->priv->page_cache = EV_PAGE_CACHE (g_value_dup_object (value)); + if (page_cache) + g_object_unref (page_cache); + break; + case PROP_MODEL: + model = page->priv->model; + page->priv->model = GTK_TREE_MODEL (g_value_dup_object (value)); + if (model) + g_object_unref (model); + break; + default: + G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); + break; + } +} + +static void +ev_page_action_get_property (GObject *object, + guint prop_id, + GValue *value, + GParamSpec *pspec) +{ + EvPageAction *page; + + page = EV_PAGE_ACTION (object); + + switch (prop_id) + { + case PROP_PAGE_CACHE: + g_value_set_object (value, page->priv->page_cache); + break; + case PROP_MODEL: + g_value_set_object (value, page->priv->model); + break; + default: + G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); + break; + } +} + +void +ev_page_action_set_document (EvPageAction *page, EvDocument *document) +{ + EvPageCache *page_cache = NULL; + + if (document) + page_cache = ev_page_cache_get (document); + + g_object_set (page, + "page-cache", page_cache, + "model", NULL, + NULL); +} + +void +ev_page_action_set_model (EvPageAction *page_action, + GtkTreeModel *model) +{ + g_object_set (page_action, + "model", model, + NULL); +} + +void +ev_page_action_grab_focus (EvPageAction *page_action) +{ + GSList *proxies; + + proxies = gtk_action_get_proxies (GTK_ACTION (page_action)); + for (; proxies != NULL; proxies = proxies->next) { + EvPageActionWidget *proxy; + + proxy = EV_PAGE_ACTION_WIDGET (proxies->data); + + if (GTK_WIDGET_MAPPED (GTK_WIDGET (proxy))) + gtk_widget_grab_focus (proxy->entry); + } +} + +static void +ev_page_action_init (EvPageAction *page) +{ + page->priv = EV_PAGE_ACTION_GET_PRIVATE (page); +} + +static void +ev_page_action_class_init (EvPageActionClass *class) +{ + GObjectClass *object_class = G_OBJECT_CLASS (class); + GtkActionClass *action_class = GTK_ACTION_CLASS (class); + + object_class->dispose = ev_page_action_dispose; + object_class->set_property = ev_page_action_set_property; + object_class->get_property = ev_page_action_get_property; + + action_class->toolbar_item_type = GTK_TYPE_TOOL_ITEM; + action_class->create_tool_item = create_tool_item; + action_class->connect_proxy = connect_proxy; + + signals[ACTIVATE_LINK] = g_signal_new ("activate_link", + G_OBJECT_CLASS_TYPE (object_class), + G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION, + G_STRUCT_OFFSET (EvPageActionClass, activate_link), + NULL, NULL, + g_cclosure_marshal_VOID__OBJECT, + G_TYPE_NONE, 1, + G_TYPE_OBJECT); + + g_object_class_install_property (object_class, + PROP_PAGE_CACHE, + g_param_spec_object ("page-cache", + "Page Cache", + "Current page cache", + EV_TYPE_PAGE_CACHE, + G_PARAM_READWRITE)); + + g_object_class_install_property (object_class, + PROP_MODEL, + g_param_spec_object ("model", + "Model", + "Current Model", + GTK_TYPE_TREE_MODEL, + G_PARAM_READWRITE)); + + g_type_class_add_private (object_class, sizeof (EvPageActionPrivate)); +} |