/* -*- Mode: C; indent-tabs-mode: t; c-basic-offset: 8; tab-width: 8 -*- */
/*
 * Copyright (C) 2005 Red Hat, Inc.
 *
 * Caja 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.
 *
 * Caja 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; see the file COPYING.  If not,
 * write to the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
 * Boston, MA 02110-1301, USA.
 *
 * Author: Alexander Larsson <alexl@redhat.com>
 *
 */

#include <config.h>
#include "caja-query-editor.h"
#include "caja-src-marshal.h"
#include "caja-window-slot.h"

#include <string.h>
#include <glib/gi18n.h>
#include <gio/gio.h>
#include <eel/eel-gtk-macros.h>
#include <eel/eel-glib-extensions.h>
#include <gdk/gdkkeysyms.h>
#include <gtk/gtk.h>

#include "glibcompat.h" /* for g_list_free_full */

typedef enum
{
    CAJA_QUERY_EDITOR_ROW_LOCATION,
    CAJA_QUERY_EDITOR_ROW_TYPE,

    CAJA_QUERY_EDITOR_ROW_LAST
} CajaQueryEditorRowType;

typedef struct
{
    CajaQueryEditorRowType type;
    CajaQueryEditor *editor;
    GtkWidget *hbox;
    GtkWidget *combo;

    GtkWidget *type_widget;

    void *data;
} CajaQueryEditorRow;


typedef struct
{
    const char *name;
    GtkWidget * (*create_widgets)      (CajaQueryEditorRow *row);
    void        (*add_to_query)        (CajaQueryEditorRow *row,
                                        CajaQuery          *query);
    void        (*free_data)           (CajaQueryEditorRow *row);
    void        (*add_rows_from_query) (CajaQueryEditor *editor,
                                        CajaQuery *query);
} CajaQueryEditorRowOps;

struct CajaQueryEditorDetails
{
    gboolean is_indexed;
    GtkWidget *entry;
    gboolean change_frozen;
    guint typing_timeout_id;
    gboolean is_visible;
    GtkWidget *invisible_vbox;
    GtkWidget *visible_vbox;

    GList *rows;
    char *last_set_query_text;

    CajaSearchBar *bar;
    CajaWindowSlot *slot;
};

enum
{
    CHANGED,
    CANCEL,
    LAST_SIGNAL
};

static guint signals[LAST_SIGNAL];

static void  caja_query_editor_class_init       (CajaQueryEditorClass *class);
static void  caja_query_editor_init             (CajaQueryEditor      *editor);

static void entry_activate_cb (GtkWidget *entry, CajaQueryEditor *editor);
static void entry_changed_cb  (GtkWidget *entry, CajaQueryEditor *editor);
static void caja_query_editor_changed_force (CajaQueryEditor *editor,
        gboolean             force);
static void caja_query_editor_changed (CajaQueryEditor *editor);
static CajaQueryEditorRow * caja_query_editor_add_row (CajaQueryEditor *editor,
        CajaQueryEditorRowType type);

static GtkWidget *location_row_create_widgets  (CajaQueryEditorRow *row);
static void       location_row_add_to_query    (CajaQueryEditorRow *row,
        CajaQuery          *query);
static void       location_row_free_data       (CajaQueryEditorRow *row);
static void       location_add_rows_from_query (CajaQueryEditor    *editor,
        CajaQuery          *query);
static GtkWidget *type_row_create_widgets      (CajaQueryEditorRow *row);
static void       type_row_add_to_query        (CajaQueryEditorRow *row,
        CajaQuery          *query);
static void       type_row_free_data           (CajaQueryEditorRow *row);
static void       type_add_rows_from_query     (CajaQueryEditor    *editor,
        CajaQuery          *query);



static CajaQueryEditorRowOps row_type[] =
{
    {
        N_("Location"),
        location_row_create_widgets,
        location_row_add_to_query,
        location_row_free_data,
        location_add_rows_from_query
    },
    {
        N_("File Type"),
        type_row_create_widgets,
        type_row_add_to_query,
        type_row_free_data,
        type_add_rows_from_query
    },
};

EEL_CLASS_BOILERPLATE (CajaQueryEditor,
                       caja_query_editor,
                       GTK_TYPE_VBOX)

static void
caja_query_editor_finalize (GObject *object)
{
    CajaQueryEditor *editor;

    editor = CAJA_QUERY_EDITOR (object);

    g_free (editor->details);

    EEL_CALL_PARENT (G_OBJECT_CLASS, finalize, (object));
}

static void
caja_query_editor_dispose (GObject *object)
{
    CajaQueryEditor *editor;

    editor = CAJA_QUERY_EDITOR (object);

    if (editor->details->typing_timeout_id)
    {
        g_source_remove (editor->details->typing_timeout_id);
        editor->details->typing_timeout_id = 0;
    }

    if (editor->details->bar != NULL)
    {
        g_signal_handlers_disconnect_by_func (editor->details->entry,
                                              entry_activate_cb,
                                              editor);
        g_signal_handlers_disconnect_by_func (editor->details->entry,
                                              entry_changed_cb,
                                              editor);

        caja_search_bar_return_entry (editor->details->bar);
        eel_remove_weak_pointer (&editor->details->bar);
    }

    EEL_CALL_PARENT (G_OBJECT_CLASS, dispose, (object));
}

static void
caja_query_editor_class_init (CajaQueryEditorClass *class)
{
    GObjectClass *gobject_class;
    GtkBindingSet *binding_set;

    gobject_class = G_OBJECT_CLASS (class);
    gobject_class->finalize = caja_query_editor_finalize;
    gobject_class->dispose = caja_query_editor_dispose;

    signals[CHANGED] =
        g_signal_new ("changed",
                      G_TYPE_FROM_CLASS (class),
                      G_SIGNAL_RUN_LAST,
                      G_STRUCT_OFFSET (CajaQueryEditorClass, changed),
                      NULL, NULL,
                      caja_src_marshal_VOID__OBJECT_BOOLEAN,
                      G_TYPE_NONE, 2, CAJA_TYPE_QUERY, G_TYPE_BOOLEAN);

    signals[CANCEL] =
        g_signal_new ("cancel",
                      G_TYPE_FROM_CLASS (class),
                      G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
                      G_STRUCT_OFFSET (CajaQueryEditorClass, cancel),
                      NULL, NULL,
                      g_cclosure_marshal_VOID__VOID,
                      G_TYPE_NONE, 0);

    binding_set = gtk_binding_set_by_class (class);
	gtk_binding_entry_add_signal (binding_set, GDK_KEY_Escape, 0, "cancel", 0);
}

static void
entry_activate_cb (GtkWidget *entry, CajaQueryEditor *editor)
{
    if (editor->details->typing_timeout_id)
    {
        g_source_remove (editor->details->typing_timeout_id);
        editor->details->typing_timeout_id = 0;
    }

    caja_query_editor_changed_force (editor, TRUE);
}

static gboolean
typing_timeout_cb (gpointer user_data)
{
    CajaQueryEditor *editor;

    editor = CAJA_QUERY_EDITOR (user_data);

    caja_query_editor_changed (editor);

    editor->details->typing_timeout_id = 0;

    return FALSE;
}

#define TYPING_TIMEOUT 750

static void
entry_changed_cb (GtkWidget *entry, CajaQueryEditor *editor)
{
    if (editor->details->change_frozen)
    {
        return;
    }

    if (editor->details->typing_timeout_id)
    {
        g_source_remove (editor->details->typing_timeout_id);
    }

    editor->details->typing_timeout_id =
        g_timeout_add (TYPING_TIMEOUT,
                       typing_timeout_cb,
                       editor);
}

static void
edit_clicked (GtkButton *button, CajaQueryEditor *editor)
{
    caja_query_editor_set_visible (editor, TRUE);
    caja_query_editor_grab_focus (editor);
}

/* Location */

static GtkWidget *
location_row_create_widgets (CajaQueryEditorRow *row)
{
    GtkWidget *chooser;

    chooser = gtk_file_chooser_button_new (_("Select folder to search in"),
                                           GTK_FILE_CHOOSER_ACTION_SELECT_FOLDER);
    gtk_file_chooser_set_local_only (GTK_FILE_CHOOSER (chooser), TRUE);
    gtk_file_chooser_set_current_folder (GTK_FILE_CHOOSER (chooser),
                                         g_get_home_dir ());
    gtk_widget_show (chooser);

    g_signal_connect_swapped (chooser, "current-folder-changed",
                              G_CALLBACK (caja_query_editor_changed),
                              row->editor);

    gtk_box_pack_start (GTK_BOX (row->hbox), chooser, FALSE, FALSE, 0);

    return chooser;
}

static void
location_row_add_to_query (CajaQueryEditorRow *row,
                           CajaQuery          *query)
{
    char *folder, *uri;

    folder = gtk_file_chooser_get_filename (GTK_FILE_CHOOSER (row->type_widget));
    if (folder == NULL)
    {
        /* I don't know why, but i got NULL here on initial search in browser mode
           even with the location set to the homedir in create_widgets... */
        folder = g_strdup (g_get_home_dir ());
    }

    uri = g_filename_to_uri (folder, NULL, NULL);
    g_free (folder);

    caja_query_set_location (query, uri);
    g_free (uri);
}

static void
location_row_free_data (CajaQueryEditorRow *row)
{
}

static void
location_add_rows_from_query (CajaQueryEditor    *editor,
                              CajaQuery          *query)
{
    CajaQueryEditorRow *row;
    char *uri, *folder;

    uri = caja_query_get_location (query);

    if (uri == NULL)
    {
        return;
    }
    folder = g_filename_from_uri (uri, NULL, NULL);
    g_free (uri);
    if (folder == NULL)
    {
        return;
    }

    row = caja_query_editor_add_row (editor,
                                     CAJA_QUERY_EDITOR_ROW_LOCATION);
    gtk_file_chooser_set_current_folder (GTK_FILE_CHOOSER (row->type_widget),
                                         folder);

    g_free (folder);
}


/* Type */

static gboolean
type_separator_func (GtkTreeModel      *model,
                     GtkTreeIter       *iter,
                     gpointer           data)
{
    char *text;
    gboolean res;

    gtk_tree_model_get (model, iter, 0, &text, -1);

    res = text != NULL && strcmp (text, "---") == 0;

    g_free (text);
    return res;
}

struct
{
    char *name;
    char *mimetypes[20];
} mime_type_groups[] =
{
    {
        N_("Documents"),
        {
            "application/rtf",
            "application/msword",
            "application/vnd.sun.xml.writer",
            "application/vnd.sun.xml.writer.global",
            "application/vnd.sun.xml.writer.template",
            "application/vnd.oasis.opendocument.text",
            "application/vnd.oasis.opendocument.text-template",
            "application/x-abiword",
            "application/x-applix-word",
            "application/x-mswrite",
            "application/docbook+xml",
            "application/x-kword",
            "application/x-kword-crypt",
            "application/x-lyx",
            NULL
        }
    },
    {
        N_("Music"),
        {
            "application/ogg",
            "audio/ac3",
            "audio/basic",
            "audio/midi",
            "audio/x-flac",
            "audio/mp4",
            "audio/mpeg",
            "audio/x-mpeg",
            "audio/x-ms-asx",
            "audio/x-pn-realaudio",
            NULL
        }
    },
    {
        N_("Video"),
        {
            "video/mp4",
            "video/3gpp",
            "video/mpeg",
            "video/quicktime",
            "video/vivo",
            "video/x-avi",
            "video/x-mng",
            "video/x-ms-asf",
            "video/x-ms-wmv",
            "video/x-msvideo",
            "video/x-nsv",
            "video/x-real-video",
            NULL
        }
    },
    {
        N_("Picture"),
        {
            "application/vnd.oasis.opendocument.image",
            "application/x-krita",
            "image/bmp",
            "image/cgm",
            "image/gif",
            "image/jpeg",
            "image/jpeg2000",
            "image/png",
            "image/svg+xml",
            "image/tiff",
            "image/x-compressed-xcf",
            "image/x-pcx",
            "image/x-photo-cd",
            "image/x-psd",
            "image/x-tga",
            "image/x-xcf",
            NULL
        }
    },
    {
        N_("Illustration"),
        {
            "application/illustrator",
            "application/vnd.corel-draw",
            "application/vnd.stardivision.draw",
            "application/vnd.oasis.opendocument.graphics",
            "application/x-dia-diagram",
            "application/x-karbon",
            "application/x-killustrator",
            "application/x-kivio",
            "application/x-kontour",
            "application/x-wpg",
            NULL
        }
    },
    {
        N_("Spreadsheet"),
        {
            "application/vnd.lotus-1-2-3",
            "application/vnd.ms-excel",
            "application/vnd.stardivision.calc",
            "application/vnd.sun.xml.calc",
            "application/vnd.oasis.opendocument.spreadsheet",
            "application/x-applix-spreadsheet",
            "application/x-gnumeric",
            "application/x-kspread",
            "application/x-kspread-crypt",
            "application/x-quattropro",
            "application/x-sc",
            "application/x-siag",
            NULL
        }
    },
    {
        N_("Presentation"),
        {
            "application/vnd.ms-powerpoint",
            "application/vnd.sun.xml.impress",
            "application/vnd.oasis.opendocument.presentation",
            "application/x-magicpoint",
            "application/x-kpresenter",
            NULL
        }
    },
    {
        N_("Pdf / Postscript"),
        {
            "application/pdf",
            "application/postscript",
            "application/x-dvi",
            "image/x-eps",
            NULL
        }
    },
    {
        N_("Text File"),
        {
            "text/plain",
            NULL
        }
    }
};

static void
type_add_custom_type (CajaQueryEditorRow *row,
                      const char *mime_type,
                      const char *description,
                      GtkTreeIter *iter)
{
    GtkTreeModel *model;
    GtkListStore *store;

    model = gtk_combo_box_get_model (GTK_COMBO_BOX (row->type_widget));
    store = GTK_LIST_STORE (model);

    gtk_list_store_append (store, iter);
    gtk_list_store_set (store, iter,
                        0, description,
                        2, mime_type,
                        -1);
}


static void
type_combo_changed (GtkComboBox *combo_box, CajaQueryEditorRow *row)
{
    GtkTreeIter iter;
    gboolean other;
    GtkTreeModel *model;

    if (!gtk_combo_box_get_active_iter  (GTK_COMBO_BOX (row->type_widget),
                                         &iter))
    {
        return;
    }

    model = gtk_combo_box_get_model (GTK_COMBO_BOX (row->type_widget));
    gtk_tree_model_get (model, &iter, 3, &other, -1);

    if (other)
    {
        GList *mime_infos, *l;
        GtkWidget *dialog;
        GtkWidget *scrolled, *treeview;
        GtkListStore *store;
        GtkTreeViewColumn *column;
        GtkCellRenderer *renderer;
        GtkWidget *toplevel;
        GtkTreeSelection *selection;

        mime_infos = g_content_types_get_registered ();

        store = gtk_list_store_new (2, G_TYPE_STRING, G_TYPE_STRING);
        for (l = mime_infos; l != NULL; l = l->next)
        {
            GtkTreeIter iter;
            char *mime_type = l->data;
            char *description;

            description = g_content_type_get_description (mime_type);
            if (description == NULL)
            {
                description = g_strdup (mime_type);
            }

            gtk_list_store_append (store, &iter);
            gtk_list_store_set (store, &iter,
                                0, description,
                                1, mime_type,
                                -1);

            g_free (mime_type);
            g_free (description);
        }
        g_list_free (mime_infos);



        toplevel = gtk_widget_get_toplevel (GTK_WIDGET (combo_box));
        dialog = gtk_dialog_new_with_buttons (_("Select type"),
                                              GTK_WINDOW (toplevel),
                                              0,
                                              GTK_STOCK_OK, GTK_RESPONSE_OK,
                                              NULL);
        gtk_window_set_default_size (GTK_WINDOW (dialog), 400, 600);

        scrolled = gtk_scrolled_window_new (NULL, NULL);
        gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (scrolled),
                                        GTK_POLICY_AUTOMATIC,
                                        GTK_POLICY_AUTOMATIC);
        gtk_scrolled_window_set_shadow_type (GTK_SCROLLED_WINDOW (scrolled),
                                             GTK_SHADOW_IN);

        gtk_widget_show (scrolled);
        gtk_box_pack_start (GTK_BOX (gtk_dialog_get_content_area (GTK_DIALOG (dialog))), scrolled, TRUE, TRUE, 6);

        treeview = gtk_tree_view_new ();
        gtk_tree_view_set_model (GTK_TREE_VIEW (treeview),
                                 GTK_TREE_MODEL (store));
        gtk_tree_sortable_set_sort_column_id (GTK_TREE_SORTABLE (store), 0,
                                              GTK_SORT_ASCENDING);

        selection = gtk_tree_view_get_selection (GTK_TREE_VIEW (treeview));
        gtk_tree_selection_set_mode (selection, GTK_SELECTION_BROWSE);


        renderer = gtk_cell_renderer_text_new ();
        column = gtk_tree_view_column_new_with_attributes ("Name",
                 renderer,
                 "text",
                 0,
                 NULL);
        gtk_tree_view_append_column (GTK_TREE_VIEW (treeview), column);
        gtk_tree_view_set_headers_visible (GTK_TREE_VIEW (treeview), FALSE);

        gtk_widget_show (treeview);
        gtk_container_add (GTK_CONTAINER (scrolled), treeview);

        if (gtk_dialog_run (GTK_DIALOG (dialog)) == GTK_RESPONSE_OK)
        {
            char *mimetype, *description;

            gtk_tree_selection_get_selected (selection, NULL, &iter);
            gtk_tree_model_get (GTK_TREE_MODEL (store), &iter,
                                0, &description,
                                1, &mimetype,
                                -1);

            type_add_custom_type (row, mimetype, description, &iter);
            gtk_combo_box_set_active_iter  (GTK_COMBO_BOX (row->type_widget),
                                            &iter);
        }
        else
        {
            gtk_combo_box_set_active (GTK_COMBO_BOX (row->type_widget), 0);
        }

        gtk_widget_destroy (dialog);
    }

    caja_query_editor_changed (row->editor);
}

static GtkWidget *
type_row_create_widgets (CajaQueryEditorRow *row)
{
    GtkWidget *combo;
    GtkCellRenderer *cell;
    GtkListStore *store;
    GtkTreeIter iter;
    int i;

    store = gtk_list_store_new (4, G_TYPE_STRING, G_TYPE_POINTER, G_TYPE_STRING, G_TYPE_BOOLEAN);
    combo = gtk_combo_box_new_with_model (GTK_TREE_MODEL (store));
    g_object_unref (store);

    cell = gtk_cell_renderer_text_new ();
    gtk_cell_layout_pack_start (GTK_CELL_LAYOUT (combo), cell, TRUE);
    gtk_cell_layout_set_attributes (GTK_CELL_LAYOUT (combo), cell,
                                    "text", 0,
                                    NULL);
    gtk_combo_box_set_row_separator_func (GTK_COMBO_BOX (combo),
                                          type_separator_func,
                                          NULL, NULL);

    gtk_list_store_append (store, &iter);
    gtk_list_store_set (store, &iter, 0, _("Any"), -1);
    gtk_list_store_append (store, &iter);
    gtk_list_store_set (store, &iter, 0, "---",  -1);

    for (i = 0; i < G_N_ELEMENTS (mime_type_groups); i++)
    {
        gtk_list_store_append (store, &iter);
        gtk_list_store_set (store, &iter,
                            0, gettext (mime_type_groups[i].name),
                            1, mime_type_groups[i].mimetypes,
                            -1);
    }

    gtk_list_store_append (store, &iter);
    gtk_list_store_set (store, &iter, 0, "---",  -1);
    gtk_list_store_append (store, &iter);
    gtk_list_store_set (store, &iter, 0, _("Other Type..."), 3, TRUE, -1);

    gtk_combo_box_set_active (GTK_COMBO_BOX (combo), 0);

    g_signal_connect (combo, "changed",
                      G_CALLBACK (type_combo_changed),
                      row);

    gtk_widget_show (combo);

    gtk_box_pack_start (GTK_BOX (row->hbox), combo, FALSE, FALSE, 0);

    return combo;
}

static void
type_row_add_to_query (CajaQueryEditorRow *row,
                       CajaQuery          *query)
{
    GtkTreeIter iter;
    char **mimetypes;
    char *mimetype;
    GtkTreeModel *model;

    if (!gtk_combo_box_get_active_iter  (GTK_COMBO_BOX (row->type_widget),
                                         &iter))
    {
        return;
    }

    model = gtk_combo_box_get_model (GTK_COMBO_BOX (row->type_widget));
    gtk_tree_model_get (model, &iter, 1, &mimetypes, 2, &mimetype, -1);

    if (mimetypes != NULL)
    {
        while (*mimetypes != NULL)
        {
            caja_query_add_mime_type (query, *mimetypes);
            mimetypes++;
        }
    }
    if (mimetype)
    {
        caja_query_add_mime_type (query, mimetype);
        g_free (mimetype);
    }
}

static void
type_row_free_data (CajaQueryEditorRow *row)
{
}

static gboolean
all_group_types_in_list (char **group_types, GList *mime_types)
{
    GList *l;
    char **group_type;
    char *mime_type;
    gboolean found;

    group_type = group_types;
    while (*group_type != NULL)
    {
        found = FALSE;

        for (l = mime_types; l != NULL; l = l->next)
        {
            mime_type = l->data;

            if (strcmp (mime_type, *group_type) == 0)
            {
                found = TRUE;
                break;
            }
        }

        if (!found)
        {
            return FALSE;
        }
        group_type++;
    }
    return TRUE;
}

static GList *
remove_group_types_from_list (char **group_types, GList *mime_types)
{
    GList *l, *next;
    char **group_type;
    char *mime_type;

    group_type = group_types;
    while (*group_type != NULL)
    {
        for (l = mime_types; l != NULL; l = next)
        {
            mime_type = l->data;
            next = l->next;

            if (strcmp (mime_type, *group_type) == 0)
            {
                mime_types = g_list_remove_link (mime_types, l);
                g_free (mime_type);
                break;
            }
        }

        group_type++;
    }
    return mime_types;
}


static void
type_add_rows_from_query (CajaQueryEditor    *editor,
                          CajaQuery          *query)
{
    GList *mime_types;
    char *mime_type;
    const char *desc;
    CajaQueryEditorRow *row;
    GtkTreeIter iter;
    int i;
    GtkTreeModel *model;
    GList *l;

    mime_types = caja_query_get_mime_types (query);

    if (mime_types == NULL)
    {
        return;
    }

    for (i = 0; i < G_N_ELEMENTS (mime_type_groups); i++)
    {
        if (all_group_types_in_list (mime_type_groups[i].mimetypes,
                                     mime_types))
        {
            mime_types = remove_group_types_from_list (mime_type_groups[i].mimetypes,
                         mime_types);

            row = caja_query_editor_add_row (editor,
                                             CAJA_QUERY_EDITOR_ROW_TYPE);

            model = gtk_combo_box_get_model (GTK_COMBO_BOX (row->type_widget));

            gtk_tree_model_iter_nth_child (model, &iter, NULL, i + 2);
            gtk_combo_box_set_active_iter  (GTK_COMBO_BOX (row->type_widget),
                                            &iter);
        }
    }

    for (l = mime_types; l != NULL; l = l->next)
    {
        mime_type = l->data;

        desc = g_content_type_get_description (mime_type);
        if (desc == NULL)
        {
            desc = mime_type;
        }

        row = caja_query_editor_add_row (editor,
                                         CAJA_QUERY_EDITOR_ROW_TYPE);
        model = gtk_combo_box_get_model (GTK_COMBO_BOX (row->type_widget));

        type_add_custom_type (row, mime_type, desc, &iter);
        gtk_combo_box_set_active_iter  (GTK_COMBO_BOX (row->type_widget),
                                        &iter);
    }

    g_list_free_full (mime_types, g_free);
}

/* End of row types */

static CajaQueryEditorRowType
get_next_free_type (CajaQueryEditor *editor)
{
    CajaQueryEditorRow *row;
    CajaQueryEditorRowType type;
    gboolean found;
    GList *l;


    for (type = 0; type < CAJA_QUERY_EDITOR_ROW_LAST; type++)
    {
        found = FALSE;
        for (l = editor->details->rows; l != NULL; l = l->next)
        {
            row = l->data;
            if (row->type == type)
            {
                found = TRUE;
                break;
            }
        }
        if (!found)
        {
            return type;
        }
    }
    return CAJA_QUERY_EDITOR_ROW_TYPE;
}

static void
remove_row_cb (GtkButton *clicked_button, CajaQueryEditorRow *row)
{
    CajaQueryEditor *editor;

    editor = row->editor;
    gtk_container_remove (GTK_CONTAINER (editor->details->visible_vbox),
                          row->hbox);

    editor->details->rows = g_list_remove (editor->details->rows, row);

    row_type[row->type].free_data (row);
    g_free (row);

    caja_query_editor_changed (editor);
}

static void
create_type_widgets (CajaQueryEditorRow *row)
{
    row->type_widget = row_type[row->type].create_widgets (row);
}

static void
row_type_combo_changed_cb (GtkComboBox *combo_box, CajaQueryEditorRow *row)
{
    CajaQueryEditorRowType type;

    type = gtk_combo_box_get_active (combo_box);

    if (type == row->type)
    {
        return;
    }

    if (row->type_widget != NULL)
    {
        gtk_widget_destroy (row->type_widget);
        row->type_widget = NULL;
    }

    row_type[row->type].free_data (row);
    row->data = NULL;

    row->type = type;

    create_type_widgets (row);

    caja_query_editor_changed (row->editor);
}

static CajaQueryEditorRow *
caja_query_editor_add_row (CajaQueryEditor *editor,
                           CajaQueryEditorRowType type)
{
    GtkWidget *hbox, *button, *image, *combo;
    CajaQueryEditorRow *row;
    int i;

    row = g_new0 (CajaQueryEditorRow, 1);
    row->editor = editor;
    row->type = type;

    hbox = gtk_hbox_new (FALSE, 6);
    row->hbox = hbox;
    gtk_widget_show (hbox);
    gtk_box_pack_start (GTK_BOX (editor->details->visible_vbox), hbox, FALSE, FALSE, 0);

    combo = gtk_combo_box_text_new ();
    row->combo = combo;
    for (i = 0; i < CAJA_QUERY_EDITOR_ROW_LAST; i++)
    {
        gtk_combo_box_text_append_text (GTK_COMBO_BOX_TEXT (combo), gettext (row_type[i].name));
    }
    gtk_widget_show (combo);
    gtk_box_pack_start (GTK_BOX (hbox), combo, FALSE, FALSE, 0);

    gtk_combo_box_set_active (GTK_COMBO_BOX (combo), row->type);

    editor->details->rows = g_list_append (editor->details->rows, row);

    g_signal_connect (combo, "changed",
                      G_CALLBACK (row_type_combo_changed_cb), row);

    create_type_widgets (row);

    button = gtk_button_new ();
    image = gtk_image_new_from_stock (GTK_STOCK_REMOVE,
                                      GTK_ICON_SIZE_SMALL_TOOLBAR);
    gtk_container_add (GTK_CONTAINER (button), image);
    gtk_widget_show (image);
    gtk_button_set_relief (GTK_BUTTON (button), GTK_RELIEF_NONE);
    gtk_widget_show (button);

    g_signal_connect (button, "clicked",
                      G_CALLBACK (remove_row_cb), row);
    gtk_widget_set_tooltip_text (button,
                                 _("Remove this criterion from the search"));

    gtk_box_pack_end (GTK_BOX (hbox), button, FALSE, FALSE, 0);

    return row;
}

static void
go_search_cb (GtkButton *clicked_button, CajaQueryEditor *editor)
{
    caja_query_editor_changed_force (editor, TRUE);
}

static void
add_new_row_cb (GtkButton *clicked_button, CajaQueryEditor *editor)
{
    caja_query_editor_add_row (editor, get_next_free_type (editor));
    caja_query_editor_changed (editor);
}

static void
caja_query_editor_init (CajaQueryEditor *editor)
{
    GtkWidget *hbox, *label, *button;
    char *label_markup;

    editor->details = g_new0 (CajaQueryEditorDetails, 1);
    editor->details->is_visible = TRUE;

    editor->details->invisible_vbox = gtk_vbox_new (FALSE, 6);
    gtk_box_pack_start (GTK_BOX (editor), editor->details->invisible_vbox,
                        FALSE, FALSE, 0);
    editor->details->visible_vbox = gtk_vbox_new (FALSE, 6);
    gtk_box_pack_start (GTK_BOX (editor), editor->details->visible_vbox,
                        FALSE, FALSE, 0);
    /* Only show visible vbox */
    gtk_widget_show (editor->details->visible_vbox);

    /* Create invisible part: */
    hbox = gtk_hbox_new (FALSE, 6);
    gtk_box_pack_start (GTK_BOX (editor->details->invisible_vbox),
                        hbox, FALSE, FALSE, 0);
    gtk_widget_show (hbox);

    label = gtk_label_new ("");
    label_markup = g_strconcat ("<b>", _("Search Folder"), "</b>", NULL);
    gtk_label_set_markup (GTK_LABEL (label), label_markup);
    g_free (label_markup);
    gtk_box_pack_start (GTK_BOX (hbox), label, FALSE, FALSE, 0);
    gtk_widget_show (label);

    button = gtk_button_new_with_label (_("Edit"));
    gtk_box_pack_end (GTK_BOX (hbox), button, FALSE, FALSE, 0);
    gtk_widget_show (button);

    g_signal_connect (button, "clicked",
                      G_CALLBACK (edit_clicked), editor);

    gtk_widget_set_tooltip_text (button,
                                 _("Edit the saved search"));
}

void
caja_query_editor_set_default_query (CajaQueryEditor *editor)
{
    if (!editor->details->is_indexed)
    {
        caja_query_editor_add_row (editor, CAJA_QUERY_EDITOR_ROW_LOCATION);
        caja_query_editor_changed (editor);
    }
}

static void
finish_first_line (CajaQueryEditor *editor, GtkWidget *hbox, gboolean use_go)
{
    GtkWidget *button, *image;

    button = gtk_button_new ();
    image = gtk_image_new_from_stock (GTK_STOCK_ADD,
                                      GTK_ICON_SIZE_SMALL_TOOLBAR);
    gtk_container_add (GTK_CONTAINER (button), image);
    gtk_widget_show (image);
    gtk_button_set_relief (GTK_BUTTON (button), GTK_RELIEF_NONE);
    gtk_widget_show (button);

    g_signal_connect (button, "clicked",
                      G_CALLBACK (add_new_row_cb), editor);

    gtk_box_pack_end (GTK_BOX (hbox), button, FALSE, FALSE, 0);

    gtk_widget_set_tooltip_text (button,
                                 _("Add a new criterion to this search"));

    if (!editor->details->is_indexed)
    {
        if (use_go)
        {
            button = gtk_button_new_with_label (_("Go"));
        }
        else
        {
            button = gtk_button_new_with_label (_("Reload"));
        }
        gtk_widget_show (button);

        gtk_widget_set_tooltip_text (button,
                                     _("Perform or update the search"));

        g_signal_connect (button, "clicked",
                          G_CALLBACK (go_search_cb), editor);

        gtk_box_pack_end (GTK_BOX (hbox), button, FALSE, FALSE, 0);
    }
}

static void
setup_internal_entry (CajaQueryEditor *editor)
{
    GtkWidget *hbox, *label;
    char *label_markup;

    /* Create visible part: */
    hbox = gtk_hbox_new (FALSE, 6);
    gtk_widget_show (hbox);
    gtk_box_pack_start (GTK_BOX (editor->details->visible_vbox), hbox, FALSE, FALSE, 0);

    label = gtk_label_new ("");
    label_markup = g_strconcat ("<b>", _("_Search for:"), "</b>", NULL);
    gtk_label_set_markup_with_mnemonic (GTK_LABEL (label), label_markup);
    g_free (label_markup);
    gtk_widget_show (label);
    gtk_box_pack_start (GTK_BOX (hbox), label, FALSE, FALSE, 0);

    editor->details->entry = gtk_entry_new ();
    gtk_label_set_mnemonic_widget (GTK_LABEL (label), editor->details->entry);
    gtk_box_pack_start (GTK_BOX (hbox), editor->details->entry, TRUE, TRUE, 0);

    g_signal_connect (editor->details->entry, "activate",
                      G_CALLBACK (entry_activate_cb), editor);
    g_signal_connect (editor->details->entry, "changed",
                      G_CALLBACK (entry_changed_cb), editor);
    gtk_widget_show (editor->details->entry);

    finish_first_line (editor, hbox, TRUE);
}

static void
setup_external_entry (CajaQueryEditor *editor, GtkWidget *entry)
{
    GtkWidget *hbox, *label;

    /* Create visible part: */
    hbox = gtk_hbox_new (FALSE, 6);
    gtk_widget_show (hbox);
    gtk_box_pack_start (GTK_BOX (editor->details->visible_vbox), hbox, FALSE, FALSE, 0);

    label = gtk_label_new (_("Search results"));
    gtk_widget_show (label);
    gtk_box_pack_start (GTK_BOX (hbox), label, FALSE, FALSE, 0);

    editor->details->entry = entry;
    g_signal_connect (editor->details->entry, "activate",
                      G_CALLBACK (entry_activate_cb), editor);
    g_signal_connect (editor->details->entry, "changed",
                      G_CALLBACK (entry_changed_cb), editor);

    finish_first_line (editor, hbox, FALSE);

}

void
caja_query_editor_set_visible (CajaQueryEditor *editor,
                               gboolean visible)
{
    editor->details->is_visible = visible;
    if (visible)
    {
        gtk_widget_show (editor->details->visible_vbox);
        gtk_widget_hide (editor->details->invisible_vbox);
    }
    else
    {
        gtk_widget_hide (editor->details->visible_vbox);
        gtk_widget_show (editor->details->invisible_vbox);
    }
}

static gboolean
query_is_valid (CajaQueryEditor *editor)
{
    const char *text;

    text = gtk_entry_get_text (GTK_ENTRY (editor->details->entry));

    return text != NULL && text[0] != '\0';
}

static void
caja_query_editor_changed_force (CajaQueryEditor *editor, gboolean force_reload)
{
    CajaQuery *query;

    if (editor->details->change_frozen)
    {
        return;
    }

    if (query_is_valid (editor))
    {
        query = caja_query_editor_get_query (editor);
        g_signal_emit (editor, signals[CHANGED], 0,
                       query, editor->details->is_indexed || force_reload);
        g_object_unref (query);
    }
}

static void
caja_query_editor_changed (CajaQueryEditor *editor)
{
    caja_query_editor_changed_force (editor, FALSE);
}

void
caja_query_editor_grab_focus (CajaQueryEditor *editor)
{
    if (editor->details->is_visible)
    {
        gtk_widget_grab_focus (editor->details->entry);
    }
}

CajaQuery *
caja_query_editor_get_query (CajaQueryEditor *editor)
{
    const char *query_text;
    CajaQuery *query;
    GList *l;
    CajaQueryEditorRow *row;

    if (editor == NULL || editor->details == NULL || editor->details->entry == NULL)
    {
        return NULL;
    }

    query_text = gtk_entry_get_text (GTK_ENTRY (editor->details->entry));

    /* Empty string is a NULL query */
    if (query_text && query_text[0] == '\0')
    {
        return NULL;
    }

    query = caja_query_new ();
    caja_query_set_text (query, query_text);

    for (l = editor->details->rows; l != NULL; l = l->next)
    {
        row = l->data;

        row_type[row->type].add_to_query (row, query);
    }

    return query;
}

void
caja_query_editor_clear_query (CajaQueryEditor *editor)
{
    editor->details->change_frozen = TRUE;
    gtk_entry_set_text (GTK_ENTRY (editor->details->entry), "");

    g_free (editor->details->last_set_query_text);
    editor->details->last_set_query_text = g_strdup ("");

    editor->details->change_frozen = FALSE;
}

GtkWidget *
caja_query_editor_new (gboolean start_hidden,
                       gboolean is_indexed)
{
    GtkWidget *editor;

    editor = g_object_new (CAJA_TYPE_QUERY_EDITOR, NULL);

    CAJA_QUERY_EDITOR (editor)->details->is_indexed = is_indexed;

    caja_query_editor_set_visible (CAJA_QUERY_EDITOR (editor),
                                   !start_hidden);

    setup_internal_entry (CAJA_QUERY_EDITOR (editor));

    return editor;
}

static void
detach_from_external_entry (CajaQueryEditor *editor)
{
    if (editor->details->bar != NULL)
    {
        caja_search_bar_return_entry (editor->details->bar);
        g_signal_handlers_block_by_func (editor->details->entry,
                                         entry_activate_cb,
                                         editor);
        g_signal_handlers_block_by_func (editor->details->entry,
                                         entry_changed_cb,
                                         editor);
    }
}

static void
attach_to_external_entry (CajaQueryEditor *editor)
{
    if (editor->details->bar != NULL)
    {
        caja_search_bar_borrow_entry (editor->details->bar);
        g_signal_handlers_unblock_by_func (editor->details->entry,
                                           entry_activate_cb,
                                           editor);
        g_signal_handlers_unblock_by_func (editor->details->entry,
                                           entry_changed_cb,
                                           editor);

        editor->details->change_frozen = TRUE;
        gtk_entry_set_text (GTK_ENTRY (editor->details->entry),
                            editor->details->last_set_query_text);
        editor->details->change_frozen = FALSE;
    }
}

GtkWidget*
caja_query_editor_new_with_bar (gboolean start_hidden,
                                gboolean is_indexed,
                                gboolean start_attached,
                                CajaSearchBar *bar,
                                CajaWindowSlot *slot)
{
    GtkWidget *entry;
    CajaQueryEditor *editor;

    editor = CAJA_QUERY_EDITOR (g_object_new (CAJA_TYPE_QUERY_EDITOR, NULL));
    editor->details->is_indexed = is_indexed;

    caja_query_editor_set_visible (editor, !start_hidden);

    editor->details->bar = bar;
    eel_add_weak_pointer (&editor->details->bar);

    editor->details->slot = slot;

    entry = caja_search_bar_borrow_entry (bar);
    setup_external_entry (editor, entry);
    if (!start_attached)
    {
        detach_from_external_entry (editor);
    }

    g_signal_connect_object (slot, "active",
                             G_CALLBACK (attach_to_external_entry),
                             editor, G_CONNECT_SWAPPED);
    g_signal_connect_object (slot, "inactive",
                             G_CALLBACK (detach_from_external_entry),
                             editor, G_CONNECT_SWAPPED);

    return GTK_WIDGET (editor);
}

void
caja_query_editor_set_query (CajaQueryEditor *editor, CajaQuery *query)
{
    CajaQueryEditorRowType type;
    char *text;

    if (!query)
    {
        caja_query_editor_clear_query (editor);
        return;
    }

    text = caja_query_get_text (query);

    if (!text)
    {
        text = g_strdup ("");
    }

    editor->details->change_frozen = TRUE;
    gtk_entry_set_text (GTK_ENTRY (editor->details->entry), text);

    for (type = 0; type < CAJA_QUERY_EDITOR_ROW_LAST; type++)
    {
        row_type[type].add_rows_from_query (editor, query);
    }

    editor->details->change_frozen = FALSE;

    g_free (editor->details->last_set_query_text);
    editor->details->last_set_query_text = text;
}
