ev-page-action-widget.c File Reference

#include "config.h"
#include <string.h>
#include <glib/gi18n.h>
#include <gtk/gtk.h>
#include <evince-document.h>
#include "ev-page-action-widget.h"

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Data Structures
struct	_EvPageActionWidget

Macros
#define	EPA_FILTER_MODEL_DATA   "epa-filter-model"

Enumerations
enum	{ WIDGET_ACTIVATE_LINK, WIDGET_N_SIGNALS }

Functions
static void	ev_page_action_widget_init (EvPageActionWidget *action_widget)
static void	ev_page_action_widget_class_init (EvPageActionWidgetClass *action_widget)
static gboolean	show_page_number_in_pages_label (EvPageActionWidget *action_widget, gint page)
static void	update_pages_label (EvPageActionWidget *action_widget, gint page)
static void	ev_page_action_widget_set_current_page (EvPageActionWidget *action_widget, gint page)
static void	ev_page_action_widget_update_max_width (EvPageActionWidget *action_widget)
static void	page_changed_cb (EvDocumentModel *model, gint old_page, gint new_page, EvPageActionWidget *action_widget)
static gboolean	page_scroll_cb (EvPageActionWidget *action_widget, GdkEventScroll *event)
static void	activate_cb (EvPageActionWidget *action_widget)
static gboolean	focus_out_cb (EvPageActionWidget *action_widget)
static void	ev_page_action_widget_set_document (EvPageActionWidget *action_widget, EvDocument *document)
static void	ev_page_action_widget_document_changed_cb (EvDocumentModel *model, GParamSpec *pspec, EvPageActionWidget *action_widget)
void	ev_page_action_widget_set_model (EvPageActionWidget *action_widget, EvDocumentModel *model)
static void	ev_page_action_widget_finalize (GObject *object)
static void	ev_page_action_widget_get_preferred_width (GtkWidget *widget, gint *minimum_width, gint *natural_width)
static gboolean	match_selected_cb (GtkEntryCompletion *completion, GtkTreeModel *filter_model, GtkTreeIter *filter_iter, EvPageActionWidget *proxy)
static void	display_completion_text (GtkCellLayout *cell_layout, GtkCellRenderer *renderer, GtkTreeModel *filter_model, GtkTreeIter *filter_iter, EvPageActionWidget *proxy)
static gboolean	match_completion (GtkEntryCompletion *completion, const gchar *key, GtkTreeIter *filter_iter, EvPageActionWidget *proxy)
static gboolean	build_new_tree_cb (GtkTreeModel *model, GtkTreePath *path, GtkTreeIter *iter, gpointer data)
static GtkTreeModel *	get_filter_model_from_model (GtkTreeModel *model)
void	ev_page_action_widget_update_links_model (EvPageActionWidget *proxy, GtkTreeModel *model)
void	ev_page_action_widget_grab_focus (EvPageActionWidget *proxy)

Variables
static guint	widget_signals [WIDGET_N_SIGNALS] = {0, }

Macro Definition Documentation

#define EPA_FILTER_MODEL_DATA   "epa-filter-model"

Definition at line 477 of file ev-page-action-widget.c.

Enumeration Type Documentation

anonymous enum

Enumerator
WIDGET_ACTIVATE_LINK
WIDGET_N_SIGNALS

Definition at line 34 of file ev-page-action-widget.c.

{
    WIDGET_ACTIVATE_LINK,
    WIDGET_N_SIGNALS
};

Function Documentation

static void activate_cb ( EvPageActionWidget *  action_widget)

static

Definition at line 168 of file ev-page-action-widget.c.

{
    EvDocumentModel *model;
    const char *text;
    EvLinkDest *link_dest;
    EvLinkAction *link_action;
    EvLink *link;
    gchar *link_text;
    gint current_page;

    model = action_widget->doc_model;
    current_page = ev_document_model_get_page (model);

    text = gtk_entry_get_text (GTK_ENTRY (action_widget->entry));

    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_widget, widget_signals[WIDGET_ACTIVATE_LINK], 0, link);

    g_object_unref (link_dest);
    g_object_unref (link_action);
    g_object_unref (link);
    g_free (link_text);

    if (current_page == ev_document_model_get_page (model))
        ev_page_action_widget_set_current_page (action_widget, current_page);
}

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static gboolean build_new_tree_cb ( GtkTreeModel *  model, GtkTreePath *  path, GtkTreeIter *  iter, gpointer  data  )

static

Definition at line 480 of file ev-page-action-widget.c.

{
    GtkTreeModel *filter_model = GTK_TREE_MODEL (data);
    EvLink *link;
    EvLinkAction *action;
    EvLinkActionType type;

    gtk_tree_model_get (model, iter,
                EV_DOCUMENT_LINKS_COLUMN_LINK, &link,
                -1);

    if (!link)
        return FALSE;

    action = ev_link_get_action (link);
    if (!action) {
        g_object_unref (link);
        return FALSE;
    }
    
    type = ev_link_action_get_action_type (action);

    if (type == EV_LINK_ACTION_TYPE_GOTO_DEST) {
        GtkTreeIter filter_iter;

        gtk_list_store_append (GTK_LIST_STORE (filter_model), &filter_iter);
        gtk_list_store_set (GTK_LIST_STORE (filter_model), &filter_iter,
                    0, iter,
                    -1);
    }
    
    g_object_unref (link);
    
    return FALSE;
}

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static void display_completion_text ( GtkCellLayout *  cell_layout, GtkCellRenderer *  renderer, GtkTreeModel *  filter_model, GtkTreeIter *  filter_iter, EvPageActionWidget *  proxy  )

static

Definition at line 400 of file ev-page-action-widget.c.

{
    EvLink *link;
    GtkTreeIter *iter;

    gtk_tree_model_get (filter_model, filter_iter,
                0, &iter,
                -1);
    gtk_tree_model_get (proxy->model, iter,
                EV_DOCUMENT_LINKS_COLUMN_LINK, &link,
                -1);

    g_object_set (renderer, "text", ev_link_get_title (link), NULL);

    if (link)
        g_object_unref (link);
    
    gtk_tree_iter_free (iter);
}

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static void ev_page_action_widget_class_init ( EvPageActionWidgetClass *  action_widget)

static

Definition at line 352 of file ev-page-action-widget.c.

{
    GObjectClass *object_class = G_OBJECT_CLASS (klass);
        GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);

    object_class->finalize = ev_page_action_widget_finalize;
        widget_class->get_preferred_width = ev_page_action_widget_get_preferred_width;

    widget_signals[WIDGET_ACTIVATE_LINK] =
        g_signal_new ("activate_link",
                  G_OBJECT_CLASS_TYPE (object_class),
                  G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
                  G_STRUCT_OFFSET (EvPageActionWidgetClass, activate_link),
                  NULL, NULL,
                  g_cclosure_marshal_VOID__OBJECT,
                  G_TYPE_NONE, 1,
                  G_TYPE_OBJECT);

}

static void ev_page_action_widget_document_changed_cb ( EvDocumentModel *  model, GParamSpec *  pspec, EvPageActionWidget *  action_widget  )

static

Definition at line 288 of file ev-page-action-widget.c.

{
        ev_page_action_widget_set_document (action_widget, ev_document_model_get_document (model));
}

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static void ev_page_action_widget_finalize ( GObject *  object)

static

Definition at line 314 of file ev-page-action-widget.c.

{
    EvPageActionWidget *action_widget = EV_PAGE_ACTION_WIDGET (object);

    if (action_widget->doc_model != NULL) {
        if (action_widget->signal_id > 0) {
            g_signal_handler_disconnect (action_widget->doc_model,
                             action_widget->signal_id);
            action_widget->signal_id = 0;
        }
        g_object_remove_weak_pointer (G_OBJECT (action_widget->doc_model),
                          (gpointer)&action_widget->doc_model);
        action_widget->doc_model = NULL;
    }

        ev_page_action_widget_set_document (action_widget, NULL);

    G_OBJECT_CLASS (ev_page_action_widget_parent_class)->finalize (object);
}

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static void ev_page_action_widget_get_preferred_width ( GtkWidget *  widget, gint *  minimum_width, gint *  natural_width  )

static

Definition at line 335 of file ev-page-action-widget.c.

{
        GtkWidget *child;

        *minimum_width = *natural_width = 0;

        child = gtk_bin_get_child (GTK_BIN (widget));
        if (!child || !gtk_widget_get_visible (child))
                return;

        gtk_widget_get_preferred_width (child, minimum_width, natural_width);
        *natural_width = *minimum_width;
}

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void ev_page_action_widget_grab_focus

(

EvPageActionWidget *

proxy)

Definition at line 581 of file ev-page-action-widget.c.

{
    gtk_widget_grab_focus (proxy->entry);
}

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static void ev_page_action_widget_init ( EvPageActionWidget *  action_widget)

static

Definition at line 208 of file ev-page-action-widget.c.

{
    GtkWidget *hbox;
    AtkObject *obj;
        GtkStyleContext *style_context;

    hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 0);

        style_context = gtk_widget_get_style_context (hbox);
        gtk_style_context_add_class (style_context, GTK_STYLE_CLASS_RAISED);
        gtk_style_context_add_class (style_context, GTK_STYLE_CLASS_LINKED);

    action_widget->entry = gtk_entry_new ();
    gtk_widget_add_events (action_widget->entry,
                   GDK_BUTTON_MOTION_MASK);
    gtk_entry_set_width_chars (GTK_ENTRY (action_widget->entry), 5);
    gtk_entry_set_text (GTK_ENTRY (action_widget->entry), "");
    g_signal_connect_swapped (action_widget->entry, "scroll-event",
                  G_CALLBACK (page_scroll_cb),
                  action_widget);
    g_signal_connect_swapped (action_widget->entry, "activate",
                  G_CALLBACK (activate_cb),
                  action_widget);
        g_signal_connect_swapped (action_widget->entry, "focus-out-event",
                                  G_CALLBACK (focus_out_cb),
                                  action_widget);

    obj = gtk_widget_get_accessible (action_widget->entry);
    atk_object_set_name (obj, "page-label-entry");

    gtk_box_pack_start (GTK_BOX (hbox), action_widget->entry,
                FALSE, FALSE, 0);
    gtk_widget_show (action_widget->entry);

    action_widget->label = gtk_entry_new ();
        gtk_widget_set_sensitive (action_widget->label, FALSE);
        gtk_entry_set_width_chars (GTK_ENTRY (action_widget->label), 5);
    gtk_box_pack_start (GTK_BOX (hbox), action_widget->label,
                FALSE, FALSE, 0);
    gtk_widget_show (action_widget->label);

    gtk_container_add (GTK_CONTAINER (action_widget), hbox);
    gtk_widget_show (hbox);

        gtk_widget_set_sensitive (GTK_WIDGET (action_widget), FALSE);
}

static void ev_page_action_widget_set_current_page ( EvPageActionWidget *  action_widget, gint  page  )

static

Definition at line 92 of file ev-page-action-widget.c.

{
    if (page >= 0) {
        gchar *page_label;

        page_label = ev_document_get_page_label (action_widget->document, page);
        gtk_entry_set_text (GTK_ENTRY (action_widget->entry), page_label);
        gtk_editable_set_position (GTK_EDITABLE (action_widget->entry), -1);
        g_free (page_label);
    } else {
        gtk_entry_set_text (GTK_ENTRY (action_widget->entry), "");
    }

    update_pages_label (action_widget, page);
}

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static void ev_page_action_widget_set_document ( EvPageActionWidget *  action_widget, EvDocument *  document  )

static

Definition at line 256 of file ev-page-action-widget.c.

{
        if (document) {
                g_object_ref (document);
                gtk_widget_set_sensitive (GTK_WIDGET (action_widget), ev_document_get_n_pages (document) > 0);
        }

        if (action_widget->signal_id > 0) {
                g_signal_handler_disconnect (action_widget->doc_model,
                                             action_widget->signal_id);
                action_widget->signal_id = 0;
        }

        if (action_widget->document)
                g_object_unref (action_widget->document);
        action_widget->document = document;
        if (!action_widget->document)
                return;

        action_widget->signal_id =
                g_signal_connect (action_widget->doc_model,
                                  "page-changed",
                                  G_CALLBACK (page_changed_cb),
                                  action_widget);

        ev_page_action_widget_set_current_page (action_widget,
                                                ev_document_model_get_page (action_widget->doc_model));
        ev_page_action_widget_update_max_width (action_widget);
}

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void ev_page_action_widget_set_model	(	EvPageActionWidget *	action_widget,
		EvDocumentModel *	model
	)

Definition at line 296 of file ev-page-action-widget.c.

{
    if (action_widget->doc_model) {
        g_object_remove_weak_pointer (G_OBJECT (action_widget->doc_model),
                          (gpointer)&action_widget->doc_model);
    }
    action_widget->doc_model = model;
    g_object_add_weak_pointer (G_OBJECT (model),
                   (gpointer)&action_widget->doc_model);

        ev_page_action_widget_set_document (action_widget, ev_document_model_get_document (model));
    g_signal_connect (model, "notify::document",
              G_CALLBACK (ev_page_action_widget_document_changed_cb),
              action_widget);
}

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void ev_page_action_widget_update_links_model	(	EvPageActionWidget *	proxy,
		GtkTreeModel *	model
	)

Definition at line 540 of file ev-page-action-widget.c.

{
    GtkTreeModel *filter_model;
    GtkEntryCompletion *completion;
    GtkCellRenderer *renderer;

    if (!model || model == proxy->model)
        return;

    /* Magik */
    proxy->model = model;
    filter_model = get_filter_model_from_model (model);

    completion = gtk_entry_completion_new ();
    g_object_set (G_OBJECT (completion),
              "popup-set-width", FALSE,
              "model", filter_model,
              NULL);

    g_signal_connect (completion, "match-selected", G_CALLBACK (match_selected_cb), proxy);
    gtk_entry_completion_set_match_func (completion,
                         (GtkEntryCompletionMatchFunc) match_completion,
                         proxy, NULL);

    /* Set up the layout */
    renderer = (GtkCellRenderer *)
        g_object_new (GTK_TYPE_CELL_RENDERER_TEXT,
                  "ellipsize", PANGO_ELLIPSIZE_END,
                  "width_chars", 30,
                  NULL);
    gtk_cell_layout_pack_start (GTK_CELL_LAYOUT (completion), renderer, TRUE);
    gtk_cell_layout_set_cell_data_func (GTK_CELL_LAYOUT (completion),
                        renderer,
                        (GtkCellLayoutDataFunc) display_completion_text,
                        proxy, NULL);
    gtk_entry_set_completion (GTK_ENTRY (proxy->entry), completion);

    g_object_unref (completion);
}

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static void ev_page_action_widget_update_max_width ( EvPageActionWidget *  action_widget)

static

Definition at line 110 of file ev-page-action-widget.c.

{
        gchar *max_label;
        gint   n_pages;
        gint   max_label_len;
        gchar *max_page_label;
        gchar *max_page_numeric_label;

        n_pages = ev_document_get_n_pages (action_widget->document);

        max_page_label = ev_document_get_page_label (action_widget->document, n_pages - 1);
        max_page_numeric_label = g_strdup_printf ("%d", n_pages);
        if (ev_document_has_text_page_labels (action_widget->document) != 0) {
                max_label = g_strdup_printf (_("(%d of %d)"), n_pages, n_pages);
                /* Do not take into account the parentheses for the size computation */
                max_label_len = g_utf8_strlen (max_label, -1) - 2;
        } else {
                max_label = g_strdup_printf (_("of %d"), n_pages);
                max_label_len = g_utf8_strlen (max_label, -1);
        }
        g_free (max_page_label);

        gtk_entry_set_width_chars (GTK_ENTRY (action_widget->label), max_label_len);
        g_free (max_label);

        max_label_len = ev_document_get_max_label_len (action_widget->document);
        gtk_entry_set_width_chars (GTK_ENTRY (action_widget->entry),
                                   CLAMP (max_label_len, strlen (max_page_numeric_label) + 1, 12));
        g_free (max_page_numeric_label);
}

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static gboolean focus_out_cb ( EvPageActionWidget *  action_widget)

static

Definition at line 200 of file ev-page-action-widget.c.

{
        ev_page_action_widget_set_current_page (action_widget,
                                                ev_document_model_get_page (action_widget->doc_model));
        return FALSE;
}

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static GtkTreeModel* get_filter_model_from_model ( GtkTreeModel *  model)

static

Definition at line 520 of file ev-page-action-widget.c.

{
    GtkTreeModel *filter_model;

    filter_model =
        (GtkTreeModel *) g_object_get_data (G_OBJECT (model), EPA_FILTER_MODEL_DATA);
    if (filter_model == NULL) {
        filter_model = (GtkTreeModel *) gtk_list_store_new (1, GTK_TYPE_TREE_ITER);

        gtk_tree_model_foreach (model,
                    build_new_tree_cb,
                    filter_model);
        g_object_set_data_full (G_OBJECT (model), EPA_FILTER_MODEL_DATA, filter_model, g_object_unref);
    }

    return filter_model;
}

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static gboolean match_completion ( GtkEntryCompletion *  completion, const gchar *  key, GtkTreeIter *  filter_iter, EvPageActionWidget *  proxy  )

static

Definition at line 425 of file ev-page-action-widget.c.

{
    EvLink *link;
    GtkTreeIter *iter;
    const gchar *text = NULL;

    gtk_tree_model_get (gtk_entry_completion_get_model (completion),
                filter_iter,
                0, &iter,
                -1);
    gtk_tree_model_get (proxy->model, iter,
                EV_DOCUMENT_LINKS_COLUMN_LINK, &link,
                -1);


    if (link) {
        text = ev_link_get_title (link);
        g_object_unref (link);
    }

    gtk_tree_iter_free (iter);

    if (text && key) {
        gchar *normalized_text;
        gchar *normalized_key;
        gchar *case_normalized_text;
        gchar *case_normalized_key;
        gboolean retval = FALSE;

        normalized_text = g_utf8_normalize (text, -1, G_NORMALIZE_ALL);
        normalized_key = g_utf8_normalize (key, -1, G_NORMALIZE_ALL);
        case_normalized_text = g_utf8_casefold (normalized_text, -1);
        case_normalized_key = g_utf8_casefold (normalized_key, -1);

        if (strstr (case_normalized_text, case_normalized_key))
            retval = TRUE;

        g_free (normalized_text);
        g_free (normalized_key);
        g_free (case_normalized_text);
        g_free (case_normalized_key);

        return retval;
    }

    return FALSE;
}

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static gboolean match_selected_cb ( GtkEntryCompletion *  completion, GtkTreeModel *  filter_model, GtkTreeIter *  filter_iter, EvPageActionWidget *  proxy  )

static

Definition at line 373 of file ev-page-action-widget.c.

{
    EvLink *link;
    GtkTreeIter *iter;

    gtk_tree_model_get (filter_model, filter_iter,
                0, &iter,
                -1);
    gtk_tree_model_get (proxy->model, iter,
                EV_DOCUMENT_LINKS_COLUMN_LINK, &link,
                -1);

    g_signal_emit (proxy, widget_signals[WIDGET_ACTIVATE_LINK], 0, link);

    if (link)
        g_object_unref (link);

    gtk_tree_iter_free (iter);
    
    return TRUE;
}

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static void page_changed_cb ( EvDocumentModel *  model, gint  old_page, gint  new_page, EvPageActionWidget *  action_widget  )

static

Definition at line 142 of file ev-page-action-widget.c.

{
    ev_page_action_widget_set_current_page (action_widget, new_page);
}

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static gboolean page_scroll_cb ( EvPageActionWidget *  action_widget, GdkEventScroll *  event  )

static

Definition at line 151 of file ev-page-action-widget.c.

{
    EvDocumentModel *model = action_widget->doc_model;
    gint pageno;

    pageno = ev_document_model_get_page (model);
    if ((event->direction == GDK_SCROLL_DOWN) &&
        (pageno < ev_document_get_n_pages (action_widget->document) - 1))
        pageno++;
    if ((event->direction == GDK_SCROLL_UP) && (pageno > 0))
        pageno--;
    ev_document_model_set_page (model, pageno);

    return TRUE;
}

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static gboolean show_page_number_in_pages_label ( EvPageActionWidget *  action_widget, gint  page  )

static

Definition at line 59 of file ev-page-action-widget.c.

{
        gchar   *page_label;
        gboolean retval;

        if (!ev_document_has_text_page_labels (action_widget->document))
                return FALSE;

        page_label = g_strdup_printf ("%d", page + 1);
        retval = g_strcmp0 (page_label, gtk_entry_get_text (GTK_ENTRY (action_widget->entry))) != 0;
        g_free (page_label);

        return retval;
}

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static void update_pages_label ( EvPageActionWidget *  action_widget, gint  page  )

static

Definition at line 76 of file ev-page-action-widget.c.

{
    char *label_text;
    gint n_pages;

    n_pages = ev_document_get_n_pages (action_widget->document);
        if (show_page_number_in_pages_label (action_widget, page))
                label_text = g_strdup_printf (_("(%d of %d)"), page + 1, n_pages);
        else
                label_text = g_strdup_printf (_("of %d"), n_pages);
    gtk_entry_set_text (GTK_ENTRY (action_widget->label), label_text);
    g_free (label_text);
}

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Variable Documentation

guint widget_signals[WIDGET_N_SIGNALS] = {0, }

static

Definition at line 54 of file ev-page-action-widget.c.