/* this file is part of atril, a mate document viewer * * Copyright (C) 2004 Red Hat, Inc. * * Author: * Jonathan Blandford <jrb@alum.mit.edu> * * Atril 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 of the License, or * (at your option) any later version. * * Atril 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ #ifdef HAVE_CONFIG_H #include "config.h" #endif #include <string.h> #include <glib/gi18n.h> #include <gtk/gtk.h> #include "ev-document-links.h" #include "ev-job-scheduler.h" #include "ev-sidebar-links.h" #include "ev-sidebar-page.h" #include "ev-window.h" struct _EvSidebarLinksPrivate { GtkWidget *tree_view; /* Keep these ids around for blocking */ guint selection_id; guint page_changed_id; guint row_activated_id; EvJob *job; GtkTreeModel *model; EvDocument *document; EvDocumentModel *doc_model; }; enum { PROP_0, PROP_MODEL, PROP_WIDGET, }; enum { LINK_ACTIVATED, N_SIGNALS }; static void update_page_callback (EvSidebarLinks *sidebar_links, gint old_page, gint current_page); static void row_activated_callback (GtkTreeView *treeview, GtkTreePath *arg1, GtkTreeViewColumn *arg2, gpointer user_data); static void ev_sidebar_links_set_links_model (EvSidebarLinks *links, GtkTreeModel *model); static void job_finished_callback (EvJobLinks *job, EvSidebarLinks *sidebar_links); static void ev_sidebar_links_set_current_page (EvSidebarLinks *sidebar_links, gint current_page); static void ev_sidebar_links_page_iface_init (EvSidebarPageInterface *iface); static gboolean ev_sidebar_links_support_document (EvSidebarPage *sidebar_page, EvDocument *document); static const gchar* ev_sidebar_links_get_label (EvSidebarPage *sidebar_page); static guint signals[N_SIGNALS]; G_DEFINE_TYPE_EXTENDED (EvSidebarLinks, ev_sidebar_links, GTK_TYPE_VBOX, 0, G_IMPLEMENT_INTERFACE (EV_TYPE_SIDEBAR_PAGE, ev_sidebar_links_page_iface_init)) #define EV_SIDEBAR_LINKS_GET_PRIVATE(object) \ (G_TYPE_INSTANCE_GET_PRIVATE ((object), EV_TYPE_SIDEBAR_LINKS, EvSidebarLinksPrivate)) static void ev_sidebar_links_set_property (GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec) { EvSidebarLinks *ev_sidebar_links = EV_SIDEBAR_LINKS (object); switch (prop_id) { case PROP_MODEL: ev_sidebar_links_set_links_model (ev_sidebar_links, g_value_get_object (value)); break; default: G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); break; } } static void ev_sidebar_links_get_property (GObject *object, guint prop_id, GValue *value, GParamSpec *pspec) { EvSidebarLinks *ev_sidebar_links; ev_sidebar_links = EV_SIDEBAR_LINKS (object); switch (prop_id) { case PROP_MODEL: g_value_set_object (value, ev_sidebar_links->priv->model); break; case PROP_WIDGET: g_value_set_object (value, ev_sidebar_links->priv->tree_view); break; default: G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); break; } } static void ev_sidebar_links_dispose (GObject *object) { EvSidebarLinks *sidebar = EV_SIDEBAR_LINKS (object); if (sidebar->priv->job) { g_signal_handlers_disconnect_by_func (sidebar->priv->job, job_finished_callback, sidebar); ev_job_cancel (sidebar->priv->job); g_object_unref (sidebar->priv->job); sidebar->priv->job = NULL; } if (sidebar->priv->model) { g_object_unref (sidebar->priv->model); sidebar->priv->model = NULL; } if (sidebar->priv->document) { g_object_unref (sidebar->priv->document); sidebar->priv->document = NULL; sidebar->priv->doc_model = NULL; } G_OBJECT_CLASS (ev_sidebar_links_parent_class)->dispose (object); } static void ev_sidebar_links_map (GtkWidget *widget) { EvSidebarLinks *links; links = EV_SIDEBAR_LINKS (widget); GTK_WIDGET_CLASS (ev_sidebar_links_parent_class)->map (widget); if (links->priv->model) { ev_sidebar_links_set_current_page (links, ev_document_model_get_page (links->priv->doc_model)); } } static void ev_sidebar_links_class_init (EvSidebarLinksClass *ev_sidebar_links_class) { GObjectClass *g_object_class; GtkWidgetClass *widget_class; g_object_class = G_OBJECT_CLASS (ev_sidebar_links_class); widget_class = GTK_WIDGET_CLASS (ev_sidebar_links_class); g_object_class->set_property = ev_sidebar_links_set_property; g_object_class->get_property = ev_sidebar_links_get_property; g_object_class->dispose = ev_sidebar_links_dispose; widget_class->map = ev_sidebar_links_map; signals[LINK_ACTIVATED] = g_signal_new ("link-activated", G_TYPE_FROM_CLASS (g_object_class), G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION, G_STRUCT_OFFSET (EvSidebarLinksClass, link_activated), NULL, NULL, g_cclosure_marshal_VOID__OBJECT, G_TYPE_NONE, 1, G_TYPE_OBJECT); g_object_class_install_property (g_object_class, PROP_MODEL, g_param_spec_object ("model", "Model", "Current Model", GTK_TYPE_TREE_MODEL, G_PARAM_READWRITE)); g_object_class_override_property (g_object_class, PROP_WIDGET, "main-widget"); g_type_class_add_private (g_object_class, sizeof (EvSidebarLinksPrivate)); } static void selection_changed_callback (GtkTreeSelection *selection, EvSidebarLinks *ev_sidebar_links) { EvDocument *document; GtkTreeModel *model; GtkTreeIter iter; document = EV_DOCUMENT (ev_sidebar_links->priv->document); g_return_if_fail (ev_sidebar_links->priv->document != NULL); if (gtk_tree_selection_get_selected (selection, &model, &iter)) { EvLink *link; gtk_tree_model_get (model, &iter, EV_DOCUMENT_LINKS_COLUMN_LINK, &link, -1); if (link == NULL) return; g_signal_handler_block (ev_sidebar_links->priv->doc_model, ev_sidebar_links->priv->page_changed_id); g_signal_emit (ev_sidebar_links, signals[LINK_ACTIVATED], 0, link); g_signal_handler_unblock (ev_sidebar_links->priv->doc_model, ev_sidebar_links->priv->page_changed_id); g_object_unref (link); } } static GtkTreeModel * create_loading_model (void) { GtkTreeModel *retval; GtkTreeIter iter; gchar *markup; /* Creates a fake model to indicate that we're loading */ retval = (GtkTreeModel *)gtk_list_store_new (EV_DOCUMENT_LINKS_COLUMN_NUM_COLUMNS, G_TYPE_STRING, G_TYPE_OBJECT, G_TYPE_BOOLEAN, G_TYPE_STRING); gtk_list_store_append (GTK_LIST_STORE (retval), &iter); markup = g_strdup_printf ("<span size=\"larger\" style=\"italic\">%s</span>", _("Loading…")); gtk_list_store_set (GTK_LIST_STORE (retval), &iter, EV_DOCUMENT_LINKS_COLUMN_MARKUP, markup, EV_DOCUMENT_LINKS_COLUMN_EXPAND, FALSE, EV_DOCUMENT_LINKS_COLUMN_LINK, NULL, -1); g_free (markup); return retval; } static void print_section_cb (GtkWidget *menuitem, EvSidebarLinks *sidebar) { GtkWidget *window; GtkTreeSelection *selection; GtkTreeModel *model; GtkTreeIter iter; selection = gtk_tree_view_get_selection (GTK_TREE_VIEW (sidebar->priv->tree_view)); if (gtk_tree_selection_get_selected (selection, &model, &iter)) { EvLink *link; int first_page, last_page = -1; gtk_tree_model_get (model, &iter, EV_DOCUMENT_LINKS_COLUMN_LINK, &link, -1); if (!link) return; first_page = ev_link_get_page (link); if (first_page == -1) { g_object_unref (link); return; } first_page++; g_object_unref (link); if (gtk_tree_model_iter_next (model, &iter)) { gtk_tree_model_get (model, &iter, EV_DOCUMENT_LINKS_COLUMN_LINK, &link, -1); if (link) { last_page = ev_link_get_page (link); g_object_unref (link); } } else { last_page = ev_document_get_n_pages (sidebar->priv->document); } if (last_page == -1) last_page = ev_document_get_n_pages (sidebar->priv->document); window = gtk_widget_get_toplevel (GTK_WIDGET (sidebar)); if (EV_IS_WINDOW (window)) { ev_window_print_range (EV_WINDOW (window), first_page, last_page); } } } static GtkMenu * build_popup_menu (EvSidebarLinks *sidebar) { GtkWidget *menu; GtkWidget *item; menu = gtk_menu_new (); item = gtk_image_menu_item_new_from_stock (GTK_STOCK_PRINT, NULL); gtk_label_set_label (GTK_LABEL (gtk_bin_get_child (GTK_BIN (item))), _("Print…")); gtk_widget_show (item); gtk_menu_shell_append (GTK_MENU_SHELL (menu), item); g_signal_connect (item, "activate", G_CALLBACK (print_section_cb), sidebar); return GTK_MENU (menu); } static void popup_menu_cb (GtkWidget *treeview, EvSidebarLinks *sidebar) { GtkMenu *menu = build_popup_menu (sidebar); gtk_menu_popup (menu, NULL, NULL, ev_gui_menu_position_tree_selection, sidebar->priv->tree_view, 0, gtk_get_current_event_time ()); gtk_menu_shell_select_first (GTK_MENU_SHELL (menu), FALSE); } static gboolean button_press_cb (GtkWidget *treeview, GdkEventButton *event, EvSidebarLinks *sidebar) { GtkTreePath *path = NULL; if (event->button == 3) { if (gtk_tree_view_get_path_at_pos (GTK_TREE_VIEW (treeview), event->x, event->y, &path, NULL, NULL, NULL)) { gtk_tree_view_set_cursor (GTK_TREE_VIEW (treeview), path, NULL, FALSE); gtk_menu_popup (build_popup_menu (sidebar), NULL, NULL, NULL, NULL, event->button, gtk_get_current_event_time ()); gtk_tree_path_free (path); return TRUE; } } return FALSE; } static void ev_sidebar_links_construct (EvSidebarLinks *ev_sidebar_links) { EvSidebarLinksPrivate *priv; GtkWidget *swindow; GtkTreeViewColumn *column; GtkCellRenderer *renderer; GtkTreeSelection *selection; GtkTreeModel *loading_model; priv = ev_sidebar_links->priv; swindow = gtk_scrolled_window_new (NULL, NULL); gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (swindow), GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC); gtk_scrolled_window_set_shadow_type (GTK_SCROLLED_WINDOW (swindow), GTK_SHADOW_IN); /* Create tree view */ loading_model = create_loading_model (); priv->tree_view = gtk_tree_view_new_with_model (loading_model); g_object_unref (loading_model); selection = gtk_tree_view_get_selection (GTK_TREE_VIEW (priv->tree_view)); gtk_tree_selection_set_mode (selection, GTK_SELECTION_NONE); gtk_tree_view_set_headers_visible (GTK_TREE_VIEW (priv->tree_view), FALSE); gtk_container_add (GTK_CONTAINER (swindow), priv->tree_view); gtk_box_pack_start (GTK_BOX (ev_sidebar_links), swindow, TRUE, TRUE, 0); gtk_widget_show_all (GTK_WIDGET (ev_sidebar_links)); column = gtk_tree_view_column_new (); gtk_tree_view_column_set_expand (GTK_TREE_VIEW_COLUMN (column), TRUE); gtk_tree_view_append_column (GTK_TREE_VIEW (priv->tree_view), column); renderer = (GtkCellRenderer*) g_object_new (GTK_TYPE_CELL_RENDERER_TEXT, "ellipsize", PANGO_ELLIPSIZE_END, NULL); gtk_tree_view_column_pack_start (GTK_TREE_VIEW_COLUMN (column), renderer, TRUE); gtk_tree_view_column_set_attributes (GTK_TREE_VIEW_COLUMN (column), renderer, "markup", EV_DOCUMENT_LINKS_COLUMN_MARKUP, NULL); renderer = gtk_cell_renderer_text_new (); gtk_tree_view_column_pack_end (GTK_TREE_VIEW_COLUMN (column), renderer, FALSE); gtk_tree_view_column_set_attributes (GTK_TREE_VIEW_COLUMN (column), renderer, "text", EV_DOCUMENT_LINKS_COLUMN_PAGE_LABEL, NULL); g_object_set (G_OBJECT (renderer), "style", PANGO_STYLE_ITALIC, NULL); g_signal_connect (priv->tree_view, "button_press_event", G_CALLBACK (button_press_cb), ev_sidebar_links); g_signal_connect (priv->tree_view, "popup_menu", G_CALLBACK (popup_menu_cb), ev_sidebar_links); } static void ev_sidebar_links_init (EvSidebarLinks *ev_sidebar_links) { ev_sidebar_links->priv = EV_SIDEBAR_LINKS_GET_PRIVATE (ev_sidebar_links); ev_sidebar_links_construct (ev_sidebar_links); } static gboolean fill_page_labels (GtkTreeModel *tree_model, GtkTreePath *path, GtkTreeIter *iter, EvSidebarLinks *sidebar_links) { EvLink *link; gint page; gchar *page_label; gtk_tree_model_get (tree_model, iter, EV_DOCUMENT_LINKS_COLUMN_LINK, &link, -1); if (!link) return FALSE; page = ev_link_get_page (link); if (page < 0) return FALSE; page_label = ev_document_get_page_label (sidebar_links->priv->document, page); gtk_tree_store_set (GTK_TREE_STORE (tree_model), iter, EV_DOCUMENT_LINKS_COLUMN_PAGE_LABEL, page_label, -1); g_free (page_label); g_object_unref (link); return FALSE; } /* Public Functions */ GtkWidget * ev_sidebar_links_new (void) { GtkWidget *ev_sidebar_links; ev_sidebar_links = g_object_new (EV_TYPE_SIDEBAR_LINKS, NULL); return ev_sidebar_links; } static gboolean update_page_callback_foreach (GtkTreeModel *model, GtkTreePath *path, GtkTreeIter *iter, gpointer data) { EvSidebarLinks *sidebar_links = (data); EvLink *link; gtk_tree_model_get (model, iter, EV_DOCUMENT_LINKS_COLUMN_LINK, &link, -1); if (link) { int current_page; int dest_page; dest_page = ev_link_get_page (link); g_object_unref (link); current_page = ev_document_model_get_page (sidebar_links->priv->doc_model); if (dest_page == current_page) { gtk_tree_view_expand_to_path (GTK_TREE_VIEW (sidebar_links->priv->tree_view), path); gtk_tree_view_set_cursor (GTK_TREE_VIEW (sidebar_links->priv->tree_view), path, NULL, FALSE); return TRUE; } } return FALSE; } static void ev_sidebar_links_set_current_page (EvSidebarLinks *sidebar_links, gint current_page) { GtkTreeSelection *selection; GtkTreeModel *model; GtkTreeIter iter; /* Widget is not currently visible */ if (!gtk_widget_get_mapped (GTK_WIDGET (sidebar_links))) return; selection = gtk_tree_view_get_selection (GTK_TREE_VIEW (sidebar_links->priv->tree_view)); if (gtk_tree_selection_get_selected (selection, &model, &iter)) { EvLink *link; gtk_tree_model_get (model, &iter, EV_DOCUMENT_LINKS_COLUMN_LINK, &link, -1); if (link) { gint dest_page; dest_page = ev_link_get_page (link); g_object_unref (link); if (dest_page == current_page) return; } } /* We go through the tree linearly looking for the first page that * matches. This is pretty inefficient. We can do something neat with * a GtkTreeModelSort here to make it faster, if it turns out to be * slow. */ g_signal_handler_block (selection, sidebar_links->priv->selection_id); g_signal_handler_block (sidebar_links->priv->tree_view, sidebar_links->priv->row_activated_id); gtk_tree_model_foreach (model, update_page_callback_foreach, sidebar_links); g_signal_handler_unblock (selection, sidebar_links->priv->selection_id); g_signal_handler_unblock (sidebar_links->priv->tree_view, sidebar_links->priv->row_activated_id); } static void update_page_callback (EvSidebarLinks *sidebar_links, gint old_page, gint new_page) { ev_sidebar_links_set_current_page (sidebar_links, new_page); } static void row_activated_callback (GtkTreeView *treeview, GtkTreePath *arg1, GtkTreeViewColumn *arg2, gpointer user_data) { if (gtk_tree_view_row_expanded (GTK_TREE_VIEW (treeview), arg1)) { gtk_tree_view_collapse_row (GTK_TREE_VIEW (treeview), arg1); } else { gtk_tree_view_expand_row (GTK_TREE_VIEW (treeview), arg1, FALSE); } } static void expand_open_links (GtkTreeView *tree_view, GtkTreeModel *model, GtkTreeIter *parent) { GtkTreeIter iter; gboolean expand; if (gtk_tree_model_iter_children (model, &iter, parent)) { do { gtk_tree_model_get (model, &iter, EV_DOCUMENT_LINKS_COLUMN_EXPAND, &expand, -1); if (expand) { GtkTreePath *path; path = gtk_tree_model_get_path (model, &iter); gtk_tree_view_expand_row (tree_view, path, FALSE); gtk_tree_path_free (path); } expand_open_links (tree_view, model, &iter); } while (gtk_tree_model_iter_next (model, &iter)); } } static void ev_sidebar_links_set_links_model (EvSidebarLinks *sidebar_links, GtkTreeModel *model) { EvSidebarLinksPrivate *priv = sidebar_links->priv; if (priv->model == model) return; if (priv->model) g_object_unref (priv->model); priv->model = g_object_ref (model); g_object_notify (G_OBJECT (sidebar_links), "model"); } static void job_finished_callback (EvJobLinks *job, EvSidebarLinks *sidebar_links) { EvSidebarLinksPrivate *priv = sidebar_links->priv; GtkTreeSelection *selection; ev_sidebar_links_set_links_model (sidebar_links, job->model); gtk_tree_model_foreach (priv->model, (GtkTreeModelForeachFunc)fill_page_labels, sidebar_links); gtk_tree_view_set_model (GTK_TREE_VIEW (priv->tree_view), job->model); g_object_unref (job); priv->job = NULL; expand_open_links (GTK_TREE_VIEW (priv->tree_view), priv->model, NULL); selection = gtk_tree_view_get_selection (GTK_TREE_VIEW (priv->tree_view)); gtk_tree_selection_set_mode (selection, GTK_SELECTION_SINGLE); if (priv->selection_id <= 0) { priv->selection_id = g_signal_connect (selection, "changed", G_CALLBACK (selection_changed_callback), sidebar_links); } priv->page_changed_id = g_signal_connect_swapped (priv->doc_model, "page-changed", G_CALLBACK (update_page_callback), sidebar_links); if (priv->row_activated_id <= 0) { priv->row_activated_id = g_signal_connect (priv->tree_view, "row-activated", G_CALLBACK (row_activated_callback), sidebar_links); } ev_sidebar_links_set_current_page (sidebar_links, ev_document_model_get_page (priv->doc_model)); } static void ev_sidebar_links_document_changed_cb (EvDocumentModel *model, GParamSpec *pspec, EvSidebarLinks *sidebar_links) { EvDocument *document = ev_document_model_get_document (model); EvSidebarLinksPrivate *priv = sidebar_links->priv; if (!EV_IS_DOCUMENT_LINKS (document)) return; if (!ev_document_links_has_document_links (EV_DOCUMENT_LINKS (document))) return; if (priv->document) { gtk_tree_view_set_model (GTK_TREE_VIEW (priv->tree_view), NULL); g_object_unref (priv->document); } priv->document = g_object_ref (document); if (priv->job) { g_signal_handlers_disconnect_by_func (priv->job, job_finished_callback, sidebar_links); g_object_unref (priv->job); } priv->job = ev_job_links_new (document); g_signal_connect (priv->job, "finished", G_CALLBACK (job_finished_callback), sidebar_links); /* The priority doesn't matter for this job */ ev_job_scheduler_push_job (priv->job, EV_JOB_PRIORITY_NONE); } static void ev_sidebar_links_set_model (EvSidebarPage *sidebar_page, EvDocumentModel *model) { EvSidebarLinks *sidebar_links = EV_SIDEBAR_LINKS (sidebar_page); EvSidebarLinksPrivate *priv = sidebar_links->priv; if (priv->doc_model == model) return; priv->doc_model = model; g_signal_connect (model, "notify::document", G_CALLBACK (ev_sidebar_links_document_changed_cb), sidebar_page); } static gboolean ev_sidebar_links_support_document (EvSidebarPage *sidebar_page, EvDocument *document) { return (EV_IS_DOCUMENT_LINKS (document) && ev_document_links_has_document_links (EV_DOCUMENT_LINKS (document))); } static const gchar* ev_sidebar_links_get_label (EvSidebarPage *sidebar_page) { return _("Index"); } static void ev_sidebar_links_page_iface_init (EvSidebarPageInterface *iface) { iface->support_document = ev_sidebar_links_support_document; iface->set_model = ev_sidebar_links_set_model; iface->get_label = ev_sidebar_links_get_label; }