path: root/embed/downloader-view.c

/*
 *  Copyright (C) 2000, 2001, 2002 Marco Pesenti Gritti
 *
 *  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 "downloader-view.h"
#include "ephy-gui.h"
#include "ephy-prefs.h"
#include "ephy-ellipsizing-label.h"
#include "ephy-embed-utils.h"
#include "ephy-file-helpers.h"
#include "ephy-embed-shell.h"
#include "ephy-stock-icons.h"

#include <gtk/gtktreeview.h>
#include <gtk/gtkliststore.h>
#include <gtk/gtktreeviewcolumn.h>
#include <bonobo/bonobo-i18n.h>
#include <libgnomeui/gnome-dialog-util.h>
#include <libgnomeui/gnome-dialog.h>
#include <gtk/gtkprogressbar.h>
#include <libgnomevfs/gnome-vfs-mime-handlers.h>

enum
{
    DOWNLOAD_REMOVE,
    DOWNLOAD_PAUSE,
    DOWNLOAD_RESUME,
        LAST_SIGNAL
};

enum
{
    COL_PERCENT,
    COL_FILENAME,
    COL_SIZE,
    COL_REMAINING,
    COL_PERSIST_OBJECT
};

struct DownloaderViewPrivate
{
    GHashTable *details_hash;
    GtkTreeModel *model;
    gboolean show_details;

    /* Widgets */
    GtkWidget *window;
    GtkWidget *treeview;
    GtkWidget *details_location;
    GtkWidget *details_status;
    GtkWidget *details_elapsed;
    GtkWidget *details_remaining;
    GtkWidget *details_progress;
    GtkWidget *details_button;

    GtkWidget *open_button;
    GtkWidget *pause_button;
    GtkWidget *abort_button;
};

typedef struct
{
    glong elapsed;
    glong remaining;
    gfloat speed;
    gint size_total;
    gint size_done;
    gfloat progress;
    gchar *filename;
    gchar *source;
    gchar *dest;
    DownloadStatus status;

    GtkTreeRowReference *ref;
} DownloadDetails;

typedef struct
{
    gboolean is_paused;
    gboolean can_abort;
    gboolean can_open;
    DownloaderViewPrivate *priv;
} ControlsInfo;

enum
{
    PROP_WINDOW,
    PROP_TREEVIEW,
    PROP_DETAILS_FRAME,
    PROP_DETAILS_TABLE,
    PROP_DETAILS_STATUS,
    PROP_DETAILS_ELAPSED,
    PROP_DETAILS_REMAINING,
    PROP_DETAILS_PROGRESS,
    PROP_OPEN_BUTTON,
    PROP_PAUSE_BUTTON,
    PROP_ABORT_BUTTON,
    PROP_DETAILS_BUTTON
};

static const
EphyDialogProperty properties [] =
{
    { PROP_WINDOW, "download_manager_dialog", NULL, PT_NORMAL, NULL},
        { PROP_TREEVIEW, "clist", NULL, PT_NORMAL, NULL },
    { PROP_DETAILS_FRAME, "details_frame", NULL, PT_NORMAL, NULL },
    { PROP_DETAILS_TABLE, "details_table", NULL, PT_NORMAL, NULL },
    { PROP_DETAILS_STATUS, "details_status", NULL, PT_NORMAL, NULL },
    { PROP_DETAILS_ELAPSED, "details_elapsed", NULL, PT_NORMAL, NULL },
    { PROP_DETAILS_REMAINING, "details_remaining", NULL, PT_NORMAL, NULL },
    { PROP_DETAILS_PROGRESS, "details_progress", NULL, PT_NORMAL, NULL },
    { PROP_OPEN_BUTTON, "open_button", NULL, PT_NORMAL, NULL },
    { PROP_PAUSE_BUTTON, "pause_button", NULL, PT_NORMAL, NULL },
    { PROP_ABORT_BUTTON, "abort_button", NULL, PT_NORMAL, NULL },
    { PROP_DETAILS_BUTTON, "details_togglebutton", CONF_DOWNLOADING_SHOW_DETAILS, PT_NORMAL, NULL },

        { -1, NULL, NULL }
};

static void
downloader_view_build_ui (DownloaderView *dv);
static void
downloader_view_class_init (DownloaderViewClass *klass);
static void
downloader_view_finalize (GObject *object);
static void
downloader_view_init (DownloaderView *dv);

/* Callbacks */
void
download_dialog_pause_cb (GtkButton *button, DownloaderView *dv);
void
download_dialog_abort_cb (GtkButton *button, DownloaderView *dv);
static void
downloader_treeview_selection_changed_cb (GtkTreeSelection *selection,
                      DownloaderView *dv);
gboolean
download_dialog_delete_cb (GtkWidget *window, GdkEventAny *event,
               DownloaderView *dv);
void
download_dialog_details_cb (GtkToggleButton *button,
                DownloaderView *dv);
void
download_dialog_open_cb (GtkWidget *button,
             DownloaderView *dv);

static GObjectClass *parent_class = NULL;
static guint downloader_view_signals[LAST_SIGNAL] = { 0 };

GType
downloader_view_get_type (void)
{
       static GType downloader_view_type = 0;

        if (downloader_view_type == 0)
        {
                static const GTypeInfo our_info =
                {
                        sizeof (DownloaderViewClass),
                        NULL, /* base_init */
                        NULL, /* base_finalize */
                        (GClassInitFunc) downloader_view_class_init,
                        NULL, /* class_finalize */
                        NULL, /* class_data */
                        sizeof (DownloaderView),
                        0,    /* n_preallocs */
                        (GInstanceInitFunc) downloader_view_init
                };

                downloader_view_type = g_type_register_static (EPHY_DIALOG_TYPE,
                                                               "DownloaderView",
                                                               &our_info, 0);
        }

        return downloader_view_type;
}

static void
format_time (gchar *buffer, glong time)
{
    gint secs, hours, mins;

    secs = (gint)(time + .5);
    hours = secs / 3600;
    secs -= hours * 3600;
    mins = secs / 60;
    secs -= mins * 60;

    if (hours)
    {
        /* Hours, Minutes, Seconds */
        sprintf (buffer, _("%u:%02u.%02u"), hours, mins, secs);
    }
    else
    {
        /* Minutes, Seconds */
        sprintf (buffer, _("%02u.%02u"), mins, secs);
    }
}

static void
downloader_view_class_init (DownloaderViewClass *klass)
{
    GObjectClass *object_class = G_OBJECT_CLASS (klass);
    EphyDialogClass *ephy_dialog_class;

        parent_class = g_type_class_peek_parent (klass);
        ephy_dialog_class = EPHY_DIALOG_CLASS (klass);

        object_class->finalize = downloader_view_finalize;

        /* init signals */
        downloader_view_signals[DOWNLOAD_REMOVE] =
                g_signal_new ("download_remove",
                              G_OBJECT_CLASS_TYPE (object_class),
                              G_SIGNAL_RUN_LAST,
                              G_STRUCT_OFFSET (DownloaderViewClass, download_remove),
                              NULL, NULL,
                              g_cclosure_marshal_VOID__POINTER,
                              G_TYPE_NONE, 1,
                  G_TYPE_POINTER);
    downloader_view_signals[DOWNLOAD_PAUSE] =
                g_signal_new ("download_pause",
                              G_OBJECT_CLASS_TYPE (object_class),
                              G_SIGNAL_RUN_LAST,
                              G_STRUCT_OFFSET (DownloaderViewClass, download_pause),
                              NULL, NULL,
                              g_cclosure_marshal_VOID__POINTER,
                              G_TYPE_NONE, 1,
                  G_TYPE_POINTER);
    downloader_view_signals[DOWNLOAD_RESUME] =
                g_signal_new ("download_resume",
                              G_OBJECT_CLASS_TYPE (object_class),
                              G_SIGNAL_RUN_LAST,
                              G_STRUCT_OFFSET (DownloaderViewClass, download_resume),
                              NULL, NULL,
                              g_cclosure_marshal_VOID__POINTER,
                              G_TYPE_NONE, 1,
                  G_TYPE_POINTER);
}

static void
destroy_details_cb (DownloadDetails *details)
{
    g_free (details->filename);
    g_free (details->source);
    g_free (details->dest);
    g_free (details);
}

static void
downloader_view_init (DownloaderView *dv)
{
        dv->priv = g_new0 (DownloaderViewPrivate, 1);
    dv->priv->details_hash = g_hash_table_new_full (g_direct_hash,
                            g_direct_equal,
                            NULL,
                            (GDestroyNotify)destroy_details_cb);
    downloader_view_build_ui (dv);

    g_object_ref (embed_shell);
}

static void
downloader_view_finalize (GObject *object)
{
        DownloaderView *dv;

        g_return_if_fail (object != NULL);
        g_return_if_fail (IS_DOWNLOADER_VIEW (object));

        dv = DOWNLOADER_VIEW (object);

        g_return_if_fail (dv->priv != NULL);

    g_hash_table_destroy (dv->priv->details_hash);

    g_object_unref (embed_shell);

    g_free (dv->priv);

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

DownloaderView *
downloader_view_new (void)
{
    return DOWNLOADER_VIEW (g_object_new
            (DOWNLOADER_VIEW_TYPE, NULL));
}

static void
controls_info_foreach (GtkTreeModel *model,
               GtkTreePath  *path,
               GtkTreeIter  *iter,
               ControlsInfo *info)
{
    DownloadDetails *details;
    GValue val = {0, };
    gpointer persist_object;

    gtk_tree_model_get_value (model, iter, COL_PERSIST_OBJECT, &val);
    persist_object = g_value_get_pointer (&val);

    details = g_hash_table_lookup (info->priv->details_hash,
                       persist_object);

    info->is_paused |= (details->status == DOWNLOAD_STATUS_PAUSED);
    info->can_abort |= (details->status != DOWNLOAD_STATUS_COMPLETED);
    info->can_open |= (details->status == DOWNLOAD_STATUS_COMPLETED);
}

static void
downloader_view_update_controls (DownloaderViewPrivate *priv)
{
    GtkTreeSelection *selection;
    ControlsInfo *info;

    selection = gtk_tree_view_get_selection (GTK_TREE_VIEW(priv->treeview));

    info = g_new0 (ControlsInfo, 1);
    info->priv = priv;

    /* initial conditions */
    info->is_paused = info->can_abort = info->can_open = FALSE;

    if (selection)
    {
        gtk_tree_selection_selected_foreach
            (selection,
             (GtkTreeSelectionForeachFunc)controls_info_foreach,
             info);
    }

    /* setup buttons */
    gtk_widget_set_sensitive (priv->open_button, info->can_open);
    gtk_widget_set_sensitive (priv->pause_button, info->can_abort);
    /* As long as we can abort, we can pause/resume */
    gtk_widget_set_sensitive (priv->abort_button, info->can_abort);

    if (info->is_paused)
    {
        gtk_button_set_label (GTK_BUTTON (priv->pause_button), _("_Resume"));
    }
    else
    {
        gtk_button_set_label (GTK_BUTTON (priv->pause_button), _("_Pause"));
    }
    
    g_free (info);
}

static void
downloader_view_update_details (DownloaderViewPrivate *priv,
                DownloadDetails *details)
{
    gchar buffer[50];

    ephy_ellipsizing_label_set_text
        (EPHY_ELLIPSIZING_LABEL (priv->details_location),
         details->source);

    if (details->size_total >= 10000)
    {
        sprintf (buffer, _("%.1f of %.1f MB"),
             details->size_done / 1024.0,
             details->size_total / 1024.0);
    }
    else if (details->size_total > 0)
    {
        sprintf (buffer, _("%d of %d KB"),
             details->size_done,
             details->size_total);
    }
    else
    {
        sprintf (buffer, _("%d KB"),
             details->size_done);
    }

    if (details->speed > 0)
    {
        sprintf (buffer, "%s at %.1f KB/s", buffer, details->speed);
    }
    gtk_label_set_text (GTK_LABEL (priv->details_status),
                buffer);

    format_time (buffer, details->elapsed/1000000);
    gtk_label_set_text (GTK_LABEL (priv->details_elapsed),
                buffer);

    format_time (buffer, details->remaining);
    gtk_label_set_text (GTK_LABEL (priv->details_remaining),
                buffer);

    if (details->progress >= 0)
    {
        gtk_progress_bar_set_fraction
            (GTK_PROGRESS_BAR (priv->details_progress),
             details->progress);
    }
    else
    {
        gtk_progress_bar_pulse
            (GTK_PROGRESS_BAR (priv->details_progress));
    }
}

static gboolean
get_selected_row (DownloaderViewPrivate *priv, GtkTreeIter *iter)
{
    GList *l;
    GtkTreePath *node;
    GtkTreeSelection *selection;
    GtkTreeModel *model;

    selection = gtk_tree_view_get_selection (GTK_TREE_VIEW(priv->treeview));
    l = gtk_tree_selection_get_selected_rows (selection, &model);

    if (l == NULL) return FALSE;

    node = l->data;
    gtk_tree_model_get_iter (model, iter, node);

    g_list_foreach (l, (GFunc)gtk_tree_path_free, NULL);
    g_list_free (l);

    return TRUE;
}

static void
downloader_view_set_download_info (DownloaderViewPrivate *priv,
                   DownloadDetails *details,
                   GtkTreeIter *iter)
{
    gchar buffer[50];
    GtkTreePath *path;
    GtkTreePath *selected_path = NULL;
    GtkTreeIter selected_iter;
    GtkTreeSelection *selection;

    selection = gtk_tree_view_get_selection
        (GTK_TREE_VIEW(priv->treeview));

    if (get_selected_row (priv, &selected_iter))
    {
        selected_path = gtk_tree_model_get_path
            (priv->model, &selected_iter);
    }

    path = gtk_tree_row_reference_get_path (details->ref);

    gtk_list_store_set (GTK_LIST_STORE (priv->model),
                iter,
                COL_FILENAME, details->filename,
                -1);

    /* Progress */
    if (details->status == DOWNLOAD_STATUS_COMPLETED)
        details->progress = 1;
    sprintf (buffer, "%.1f%%",
         details->progress > 0 ?
         details->progress * 100.0 :
         0);
    gtk_list_store_set (GTK_LIST_STORE (priv->model),
                iter,
                COL_PERCENT, buffer,
                -1);

    /* Total */
    if (details->size_total >= 10000)
    {
        sprintf (buffer, "%.2f MB", details->size_total / 1024.0);
    }
    else if (details->size_total > 0)
    {
        sprintf (buffer, "%d KB", details->size_total);
    }
    else
    {
        sprintf (buffer, _("Unknown"));
    }

    gtk_list_store_set (GTK_LIST_STORE (priv->model),
                iter,
                COL_SIZE, buffer,
                -1);

    /* Remaining */
    if (details->remaining >= 0)
    {
        format_time (buffer, details->remaining);
    }
    else
    {
        sprintf (buffer,
             details->progress > 0 ?
             "00.00" :
             _("Unknown"));
    }
    
    gtk_list_store_set (GTK_LIST_STORE (priv->model),
                iter,
                COL_REMAINING, buffer,
                -1);

    if (gtk_tree_path_compare (path, selected_path) == 0)
    {
        downloader_view_update_details (priv, details);
    }
}

static void
ensure_selected_row (DownloaderView *dv)
{
    GtkTreeIter iter;
    GtkTreeSelection *selection;

    g_return_if_fail (IS_DOWNLOADER_VIEW(dv));

    selection = gtk_tree_view_get_selection
        (GTK_TREE_VIEW(dv->priv->treeview));
    if (get_selected_row (dv->priv, &iter))
    {
        /* there is already a selection */
        return;
    }

    if (gtk_tree_model_get_iter_first (dv->priv->model, &iter))
    {
        gtk_tree_selection_select_iter (selection, &iter);
    }
}

void
downloader_view_add_download (DownloaderView *dv,
                  gchar *filename,
                  gchar *source,
                  gchar *dest,
                  gpointer persist_object)
{
    GtkTreeIter iter;
    DownloadDetails *details;
    GtkTreeSelection *selection;

    details = g_new0 (DownloadDetails, 1);
    details->filename = g_strdup (filename);
    details->source = g_strdup (source);
    details->dest = g_strdup (dest);
    details->elapsed = -1;
    details->remaining = -1;
    details->speed = -1;
    details->size_total = -1;
    details->size_done = -1;
    details->progress = -1;
    dv->priv->show_details = FALSE;

    g_hash_table_insert (dv->priv->details_hash,
                 persist_object,
                 details);

    gtk_list_store_append (GTK_LIST_STORE (dv->priv->model),
                   &iter);

    details->ref = gtk_tree_row_reference_new
        (GTK_TREE_MODEL (dv->priv->model),
         gtk_tree_model_get_path
         (GTK_TREE_MODEL (dv->priv->model), &iter));

    gtk_list_store_set (GTK_LIST_STORE (dv->priv->model),
                &iter,
                COL_PERSIST_OBJECT, persist_object,
                -1);

    selection = gtk_tree_view_get_selection
        (GTK_TREE_VIEW(dv->priv->treeview));
    gtk_tree_selection_unselect_all (selection);
    gtk_tree_selection_select_iter (selection, &iter);

    downloader_view_set_download_info (dv->priv, details, &iter);

    ephy_dialog_show (EPHY_DIALOG (dv));
}

void
downloader_view_remove_download (DownloaderView *dv,
                 gpointer persist_object)
{
    DownloadDetails *details;
    GtkTreeIter iter;

    details = g_hash_table_lookup (dv->priv->details_hash,
                       persist_object);
    g_return_if_fail (details);

    gtk_tree_model_get_iter (GTK_TREE_MODEL (dv->priv->model),
                 &iter,
                 gtk_tree_row_reference_get_path (details->ref));

    gtk_list_store_remove (GTK_LIST_STORE (dv->priv->model), &iter);

    g_hash_table_remove (dv->priv->details_hash,
                 persist_object);

    ensure_selected_row (dv);
}

void
downloader_view_set_download_progress (DownloaderView *dv,
                       glong elapsed,
                       glong remaining,
                       gfloat speed,
                       gint size_total,
                       gint size_done,
                       gfloat progress,
                       gpointer persist_object)
{
    DownloadDetails *details;
    GtkTreeIter iter;

    details = g_hash_table_lookup (dv->priv->details_hash,
                       persist_object);
    g_return_if_fail (details);

    details->elapsed = elapsed;
    details->remaining = remaining;
    details->speed = speed;
    details->size_total = size_total;
    details->size_done = size_done;
    details->progress = progress;

    gtk_tree_model_get_iter (GTK_TREE_MODEL (dv->priv->model),
                 &iter,
                 gtk_tree_row_reference_get_path (details->ref));

    downloader_view_set_download_info (dv->priv, details, &iter);
}

void
downloader_view_set_download_status (DownloaderView *dv,
                     DownloadStatus status,
                     gpointer persist_object)
{
    DownloadDetails *details;
    GtkTreeIter iter;

    details = g_hash_table_lookup (dv->priv->details_hash,
                       persist_object);
    g_return_if_fail (details);

    details->status = status;

    gtk_tree_model_get_iter (GTK_TREE_MODEL (dv->priv->model),
                 &iter,
                 gtk_tree_row_reference_get_path (details->ref));

    downloader_view_set_download_info (dv->priv, details, &iter);
    downloader_view_update_controls (dv->priv);

/*  if (status == DOWNLOAD_STATUS_COMPLETED)
    {
        downloader_view_remove_download (dv, persist_object);
    }*/
}

static void
downloader_view_build_ui (DownloaderView *dv)
{
    DownloaderViewPrivate *priv = dv->priv;
    GtkListStore *liststore;
    GtkTreeViewColumn *column;
    GtkCellRenderer *renderer;
    GtkTreeSelection *selection;
    GtkWidget *details_table;
    GdkPixbuf *icon;
    EphyDialog *d = EPHY_DIALOG (dv);

    ephy_dialog_construct (d,
                               properties,
                               "epiphany.glade",
                               "download_manager_dialog");

    /* lookup needed widgets */
    priv->window = ephy_dialog_get_control(d, PROP_WINDOW);
    priv->treeview = ephy_dialog_get_control (d, PROP_TREEVIEW);
    priv->details_status = ephy_dialog_get_control (d, PROP_DETAILS_STATUS);
    priv->details_elapsed = ephy_dialog_get_control (d, PROP_DETAILS_ELAPSED);
    priv->details_remaining = ephy_dialog_get_control (d, PROP_DETAILS_REMAINING);
    priv->details_progress = ephy_dialog_get_control (d, PROP_DETAILS_PROGRESS);
    priv->details_button = ephy_dialog_get_control (d, PROP_DETAILS_BUTTON);
    priv->open_button = ephy_dialog_get_control (d, PROP_OPEN_BUTTON);
    priv->pause_button = ephy_dialog_get_control (d, PROP_PAUSE_BUTTON);
    priv->abort_button = ephy_dialog_get_control (d, PROP_ABORT_BUTTON);
    details_table = ephy_dialog_get_control (d, PROP_DETAILS_TABLE);

    /* create file and location details labels */
    priv->details_location = ephy_ellipsizing_label_new ("");
    gtk_table_attach_defaults (GTK_TABLE(details_table),
                   priv->details_location,
                   1, 2, 1, 2);
    gtk_misc_set_alignment (GTK_MISC(priv->details_location), 0, 0);
    gtk_label_set_selectable (GTK_LABEL(priv->details_location), TRUE);
    gtk_widget_show (priv->details_location);

    liststore = gtk_list_store_new (5,
                    G_TYPE_STRING,
                    G_TYPE_STRING,
                    G_TYPE_STRING,
                    G_TYPE_STRING,
                    G_TYPE_POINTER);

    gtk_tree_view_set_model (GTK_TREE_VIEW(priv->treeview),
                 GTK_TREE_MODEL (liststore));
    gtk_tree_view_set_headers_visible (GTK_TREE_VIEW(priv->treeview),
                       TRUE);

    renderer = gtk_cell_renderer_text_new ();

    gtk_tree_view_insert_column_with_attributes (GTK_TREE_VIEW(priv->treeview),
                             0, _("%"),
                             renderer,
                             "text", 0,
                             NULL);
    column = gtk_tree_view_get_column (GTK_TREE_VIEW(priv->treeview), 0);
        gtk_tree_view_column_set_resizable (column, TRUE);
        gtk_tree_view_column_set_reorderable (column, TRUE);
        gtk_tree_view_column_set_sort_column_id (column, COL_PERCENT);

    gtk_tree_view_insert_column_with_attributes (GTK_TREE_VIEW(priv->treeview),
                             COL_FILENAME, _("Filename"),
                             renderer,
                             "text", COL_FILENAME,
                             NULL);
    column = gtk_tree_view_get_column (GTK_TREE_VIEW(priv->treeview),
                       COL_FILENAME);
        gtk_tree_view_column_set_resizable (column, TRUE);
        gtk_tree_view_column_set_reorderable (column, TRUE);
        gtk_tree_view_column_set_sort_column_id (column, COL_FILENAME);

    gtk_tree_view_insert_column_with_attributes (GTK_TREE_VIEW(priv->treeview),
                             COL_SIZE, _("Size"),
                             renderer,
                             "text", COL_SIZE,
                             NULL);
    column = gtk_tree_view_get_column (GTK_TREE_VIEW(priv->treeview),
                       COL_SIZE);
        gtk_tree_view_column_set_resizable (column, TRUE);
        gtk_tree_view_column_set_reorderable (column, TRUE);
        gtk_tree_view_column_set_sort_column_id (column, COL_SIZE);

    gtk_tree_view_insert_column_with_attributes (GTK_TREE_VIEW(priv->treeview),
                             COL_REMAINING, _("Remaining"),
                             renderer,
                             "text", COL_REMAINING,
                             NULL);
    column = gtk_tree_view_get_column (GTK_TREE_VIEW(priv->treeview),
                       COL_REMAINING);
        gtk_tree_view_column_set_resizable (column, TRUE);
        gtk_tree_view_column_set_reorderable (column, TRUE);
        gtk_tree_view_column_set_sort_column_id (column, COL_REMAINING);

    selection = gtk_tree_view_get_selection (GTK_TREE_VIEW(priv->treeview));
    gtk_tree_selection_set_mode (selection, GTK_SELECTION_SINGLE);
        g_signal_connect (G_OBJECT (selection), "changed",
                          G_CALLBACK (downloader_treeview_selection_changed_cb), dv);

    priv->model = GTK_TREE_MODEL (liststore);

    icon = gtk_widget_render_icon (GTK_WIDGET (priv->window),
                       EPHY_STOCK_DOWNLOAD,
                       GTK_ICON_SIZE_MENU,
                       NULL);
    gtk_window_set_icon (GTK_WINDOW(priv->window), icon);
}

void
download_dialog_pause_cb (GtkButton *button, DownloaderView *dv)
{
    GtkTreeSelection *selection;
    GtkTreeModel *model;
    GtkTreeIter iter;
    DownloadDetails *details;
    GValue val = {0, };
    gpointer *persist_object;

    selection = gtk_tree_view_get_selection (GTK_TREE_VIEW(dv->priv->treeview));

    if (!gtk_tree_selection_get_selected (selection, &model, &iter)) return;

    gtk_tree_model_get_value (model, &iter, COL_PERSIST_OBJECT, &val);
    persist_object = g_value_get_pointer (&val);

    details = g_hash_table_lookup (dv->priv->details_hash,
                       persist_object);
    g_return_if_fail (details);

    if (details->status == DOWNLOAD_STATUS_COMPLETED) 
    {
        return;
    }
    else if (details->status == DOWNLOAD_STATUS_DOWNLOADING ||
         details->status == DOWNLOAD_STATUS_RESUMING)
    {
        g_signal_emit (G_OBJECT (dv), downloader_view_signals[DOWNLOAD_PAUSE], 0, persist_object);
        downloader_view_set_download_status (dv, DOWNLOAD_STATUS_PAUSED, persist_object);
    }
    else if (details->status == DOWNLOAD_STATUS_PAUSED)
    {
        g_signal_emit (G_OBJECT (dv), downloader_view_signals[DOWNLOAD_RESUME], 0, persist_object);
        downloader_view_set_download_status (dv, DOWNLOAD_STATUS_RESUMING, persist_object);
    }
}

void
download_dialog_abort_cb (GtkButton *button, DownloaderView *dv)
{
    GList *l, *r = NULL;
    GtkTreeSelection *selection;
    GtkTreeModel *model;

    selection = gtk_tree_view_get_selection (GTK_TREE_VIEW(dv->priv->treeview));
    l = gtk_tree_selection_get_selected_rows (selection, &model);
    for (;l != NULL; l = l->next)
    {
        r = g_list_append (r, gtk_tree_row_reference_new
                   (model, (GtkTreePath *)l->data));
    }

        for (; r != NULL; r = g_list_next (r))
        {
                GtkTreeRowReference *node = r->data;
        GValue val = {0, };
        gpointer *persist_object;
        GtkTreeIter iter;
        DownloadDetails *details;

                gtk_tree_model_get_iter (model, &iter,
                                         gtk_tree_row_reference_get_path (node));

        gtk_tree_model_get_value (model, &iter,
                      COL_PERSIST_OBJECT, &val);
        persist_object = g_value_get_pointer (&val);

        details = g_hash_table_lookup (dv->priv->details_hash,
                           persist_object);
        g_return_if_fail (details);

        g_signal_emit (G_OBJECT (dv), downloader_view_signals[DOWNLOAD_REMOVE], 0, persist_object);

        downloader_view_remove_download (dv, persist_object);

                gtk_tree_row_reference_free (node);
        }

    l = g_list_first (l);
    g_list_foreach (l, (GFunc)gtk_tree_path_free, NULL);
        g_list_free (l);
    g_list_free (r);
}

static void
downloader_treeview_selection_changed_cb (GtkTreeSelection *selection,
                      DownloaderView *dv)
{
    GtkTreeIter iter;
    GValue val = {0, };
    gpointer *persist_object;
    DownloadDetails *details = NULL;
    GtkWidget *details_button;
    GtkWidget *details_frame;
    DownloaderViewPrivate *priv= dv->priv;

    details_button = ephy_dialog_get_control (EPHY_DIALOG(dv),
                          PROP_DETAILS_BUTTON);
    details_frame = ephy_dialog_get_control (EPHY_DIALOG(dv),
                         PROP_DETAILS_FRAME);

    if (get_selected_row (priv, &iter))
    {
        gtk_tree_model_get_value (priv->model, &iter, COL_PERSIST_OBJECT, &val);
        persist_object = g_value_get_pointer (&val);

        details = g_hash_table_lookup (priv->details_hash,
                           persist_object);
        g_return_if_fail (details);

        gtk_widget_set_sensitive (details_button, TRUE);
        gtk_widget_set_sensitive (details_frame, TRUE);

        downloader_view_update_details (priv, details);
        downloader_view_update_controls (priv);
    }
    else
    {
        gtk_label_set_text (GTK_LABEL (priv->details_location), "");
        gtk_label_set_text (GTK_LABEL (priv->details_status), "");
        gtk_label_set_text (GTK_LABEL (priv->details_elapsed), "");
        gtk_label_set_text (GTK_LABEL (priv->details_remaining), "");
        gtk_progress_bar_set_fraction
            (GTK_PROGRESS_BAR (priv->details_progress),
             0);

        gtk_widget_set_sensitive (details_frame, FALSE);
        if (!gtk_tree_model_get_iter_first (priv->model, &iter))
            gtk_widget_set_sensitive (details_button, FALSE);
    }
}

static void
alive_download_foreach (gpointer persist_object,
            DownloadDetails *details,
            gboolean *alive)
{
    if (details->status != DOWNLOAD_STATUS_COMPLETED)
    {
        *alive = TRUE;
    }
}

static gboolean
delete_pending_foreach  (gpointer persist_object,
             DownloadDetails *details,
             DownloaderView *dv)
{
    g_signal_emit (G_OBJECT (dv), downloader_view_signals[DOWNLOAD_REMOVE],
               0, persist_object);

    return TRUE;
}

gboolean
download_dialog_delete_cb (GtkWidget *window, GdkEventAny *event,
               DownloaderView *dv)
{
    GtkWidget *dialog;
    gboolean choice;
    gboolean alive_download = FALSE;

    g_hash_table_foreach (dv->priv->details_hash,
                  (GHFunc)alive_download_foreach,
                  &alive_download);

    if (!alive_download) return FALSE;

    /* build question dialog */
    dialog = gtk_message_dialog_new (
         GTK_WINDOW (window),
         GTK_DIALOG_MODAL,
         GTK_MESSAGE_WARNING,
         GTK_BUTTONS_YES_NO,
         _("Cancel all pending downloads?"));

    /* run it */
    choice = gtk_dialog_run (GTK_DIALOG (dialog));
    gtk_widget_destroy (dialog);

    /* do the appropriate thing */
    if (choice == GTK_RESPONSE_YES)
    {
        g_hash_table_foreach_remove (dv->priv->details_hash,
                             (GHRFunc)delete_pending_foreach,
                             dv);
        return FALSE;
    }

    return TRUE;
}

void
download_dialog_details_cb (GtkToggleButton *button,
                DownloaderView *dv)
{
    GtkWidget *details_frame;

    details_frame = ephy_dialog_get_control (EPHY_DIALOG(dv),
                           PROP_DETAILS_FRAME);
    if (gtk_toggle_button_get_active (button))
    {
        gtk_widget_show (GTK_WIDGET (details_frame));
        dv->priv->show_details = TRUE;
    }
    else
    {
        gtk_widget_hide (GTK_WIDGET (details_frame));
        dv->priv->show_details = FALSE;
    }

}

static void
open_selection_foreach (GtkTreeModel *model, GtkTreePath *path, GtkTreeIter *iter,
            DownloaderView *dv)
{
    DownloadDetails *details;
    GValue val = {0, };
    gpointer *persist_object;
    GnomeVFSMimeApplication *app;
    char *mime;

    gtk_tree_model_get_value (model, iter, COL_PERSIST_OBJECT, &val);
    persist_object = g_value_get_pointer (&val);

    details = g_hash_table_lookup (dv->priv->details_hash,
                       persist_object);
    g_return_if_fail (details);

    if (details->status != DOWNLOAD_STATUS_COMPLETED) return;

    mime = gnome_vfs_get_mime_type (details->dest);
    g_return_if_fail (mime != NULL);

    app = gnome_vfs_mime_get_default_application (mime);
    if (app)
    {
        ephy_file_launch_application (app->command,
                          details->dest,
                          app->requires_terminal);
    }
    else
    {
        GtkWidget *parent;
        parent = gtk_widget_get_toplevel (dv->priv->open_button);
        ephy_embed_utils_nohandler_dialog_run (parent);
    }

    g_free(mime);
}

void
download_dialog_open_cb (GtkWidget *button,
             DownloaderView *dv)
{
    GtkTreeSelection *selection;

    selection = gtk_tree_view_get_selection (GTK_TREE_VIEW(dv->priv->treeview));

    gtk_tree_selection_selected_foreach
        (selection,
         (GtkTreeSelectionForeachFunc)open_selection_foreach,
         (gpointer)dv);
}