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/*
 * e-shell-view.h
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2 of the License, or (at your option) version 3.
 *
 * 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with the program; if not, see <http://www.gnu.org/licenses/>
 *
 *
 * Copyright (C) 1999-2008 Novell, Inc. (www.novell.com)
 *
 */

#ifndef E_SHELL_VIEW_H
#define E_SHELL_VIEW_H

#include <shell/e-shell-common.h>
#include <shell/e-shell-backend.h>
#include <shell/e-shell-content.h>
#include <shell/e-shell-sidebar.h>
#include <shell/e-shell-taskbar.h>
#include <shell/e-shell-window.h>

#include <filter/e-filter-rule.h>
#include <filter/e-rule-context.h>
#include <menus/gal-view-collection.h>
#include <menus/gal-view-instance.h>

/* Standard GObject macros */
#define E_TYPE_SHELL_VIEW \
    (e_shell_view_get_type ())
#define E_SHELL_VIEW(obj) \
    (G_TYPE_CHECK_INSTANCE_CAST \
    ((obj), E_TYPE_SHELL_VIEW, EShellView))
#define E_SHELL_VIEW_CLASS(cls) \
    (G_TYPE_CHECK_CLASS_CAST \
    ((cls), E_TYPE_SHELL_VIEW, EShellViewClass))
#define E_IS_SHELL_VIEW(obj) \
    (G_TYPE_CHECK_INSTANCE_TYPE \
    ((obj), E_TYPE_SHELL_VIEW))
#define E_IS_SHELL_VIEW_CLASS(cls) \
    (G_TYPE_CHECK_CLASS_TYPE \
    ((cls), E_TYPE_SHELL_VIEW))
#define E_SHELL_VIEW_GET_CLASS(obj) \
    (G_TYPE_INSTANCE_GET_CLASS \
    ((obj), E_TYPE_SHELL_VIEW, EShellViewClass))

G_BEGIN_DECLS

typedef struct _EShellView EShellView;
typedef struct _EShellViewClass EShellViewClass;
typedef struct _EShellViewPrivate EShellViewPrivate;

/**
 * EShellView:
 *
 * Contains only private data that should be read and manipulated using the
 * functions below.
 **/
struct _EShellView {
    GObject parent;
    EShellViewPrivate *priv;
};

/**
 * EShellViewClass:
 * @parent_class:   The parent class structure.
 * @label:      The initial value for the switcher action's
 *          #GtkAction:label property.  See
 *          e_shell_view_get_action().
 * @icon_name:      The initial value for the switcher action's
 *          #GtkAction:icon-name property.  See
 *          e_shell_view_get_action().
 * @ui_definition:  Base name of the UI definintion file to add
 *          when the shell view is activated.
 * @ui_manager_id:  The #GtkUIManager ID for #EPluginUI.  Plugins
 *          should use to this ID in their "eplug" files to
 *          add menu and toolbar items to the shell view.
 * @search_context_type:GType of the search context, which should be an
 *          instance of ERuleContextClass or a custom subclass.
 * @search_context: A unique @search_context_type instance is created
 *          automatically for each subclass and shared across
 *          all instances of that subclass.
 * @search_options: Widget path in the UI definition to the search
 *          options popup menu.  The menu gets shown when the
 *          user clicks the "find" icon in the search entry.
 * @search_rules:   Base name of the XML file containing predefined
 *          search rules for this shell view.  The XML files
 *          are usually named something like <filename>
 *          <emphasis>view</emphasis>types.xml</filename>.
 * @view_collection:    A unique #GalViewCollection instance is created
 *          for each subclass and shared across all instances
 *          of that subclass.  That much is done automatically
 *          for subclasses, but subclasses are still responsible
 *          for adding the appropriate #GalView factories to the
 *          view collection.
 * @shell_backend:  The corresponding #EShellBackend for the shell view.
 * @new_shell_content:  Factory method for the shell view's #EShellContent.
 *          See e_shell_view_get_shell_content().
 * @new_shell_sidebar:  Factory method for the shell view's #EShellSidebar.
 *          See e_shell_view_get_shell_sidebar().
 * @new_shell_taskbar:  Factory method for the shell view's #EShellTaskbar.
 *          See e_shell_view_get_shell_taskbar().
 * @toggled:        Class method for the #EShellView::toggled signal.
 *          Subclasses should rarely need to override the
 *          default behavior.
 * @clear_search:   Class method for the #EShellView::clear-search
 *          signal.  The default method sets the
 *          #EShellView:search-rule to %NULL and then emits
 *          the #EShellView::execute-search signal.
 * @custom_search:  Class method for the #EShellView::custom-search
 *          signal.  This is emitted prior to executing an
 *          advanced or saved search.  The default method sets
 *          the #EShellView:search-rule property and then emits
 *          the #EShellView::execute-search signal.
 * @execute_search: Class method for the #EShellView::execute-search
 *          signal.  There is no default behavior; subclasses
 *          should override this.
 * @update_actions: Class method for the #EShellView::update-actions
 *          signal.  There is no default behavior; subclasses
 *          should override this.
 *
 * #EShellViewClass contains a number of important settings for subclasses.
 **/
struct _EShellViewClass {
    GObjectClass parent_class;

    /* Initial switcher action values. */
    const gchar *label;
    const gchar *icon_name;

    /* Base name of the UI definition file. */
    const gchar *ui_definition;

    /* GtkUIManager identifier for use with EPluginUI.
     * Usually "org.gnome.evolution.$(VIEW_NAME)". */
    const gchar *ui_manager_id;

    /* Search context.  Subclasses may override the type.
     * A unique instance is created for each subclass. */
    GType search_context_type;
    ERuleContext *search_context;

    /* Widget path to the search options popup menu. */
    const gchar *search_options;

    /* Base name of the search rule definition file. */
    const gchar *search_rules;

    /* A unique instance is created for each subclass. */
    GalViewCollection *view_collection;

    /* This is set by the corresponding EShellBackend. */
    EShellBackend *shell_backend;

    /* Factory Methods */
    GtkWidget * (*new_shell_content)    (EShellView *shell_view);
    GtkWidget * (*new_shell_sidebar)    (EShellView *shell_view);
    GtkWidget * (*new_shell_taskbar)    (EShellView *shell_view);

    /* Create, configure and pack a search bar widget. */
    GtkWidget * (*construct_searchbar)  (EShellView *shell_view);
    gchar *     (*get_search_name)  (EShellView *shell_view);

    /* Signals */
    void        (*toggled)      (EShellView *shell_view);
    void        (*clear_search)     (EShellView *shell_view);
    void        (*custom_search)    (EShellView *shell_view,
                         EFilterRule *custom_rule);
    void        (*execute_search)   (EShellView *shell_view);
    void        (*update_actions)   (EShellView *shell_view);
};

GType       e_shell_view_get_type       (void);
const gchar *   e_shell_view_get_name       (EShellView *shell_view);
GtkAction * e_shell_view_get_action     (EShellView *shell_view);
const gchar *   e_shell_view_get_title      (EShellView *shell_view);
void        e_shell_view_set_title      (EShellView *shell_view,
                         const gchar *title);
const gchar *   e_shell_view_get_view_id    (EShellView *shell_view);
void        e_shell_view_set_view_id    (EShellView *shell_view,
                         const gchar *view_id);
gboolean    e_shell_view_is_active      (EShellView *shell_view);
gint        e_shell_view_get_page_num   (EShellView *shell_view);
void        e_shell_view_set_page_num   (EShellView *shell_view,
                         gint page_num);
GtkWidget * e_shell_view_get_searchbar  (EShellView *shell_view);
gchar *     e_shell_view_get_search_name    (EShellView *shell_view);
EFilterRule *   e_shell_view_get_search_rule    (EShellView *shell_view);
void        e_shell_view_set_search_rule    (EShellView *shell_view,
                         EFilterRule *search_rule);
gchar *     e_shell_view_get_search_query   (EShellView *shell_view);
GtkSizeGroup *  e_shell_view_get_size_group (EShellView *shell_view);
EShellBackend * e_shell_view_get_shell_backend  (EShellView *shell_view);
EShellContent * e_shell_view_get_shell_content  (EShellView *shell_view);
EShellSidebar * e_shell_view_get_shell_sidebar  (EShellView *shell_view);
EShellTaskbar * e_shell_view_get_shell_taskbar  (EShellView *shell_view);
EShellWindow *  e_shell_view_get_shell_window   (EShellView *shell_view);
GKeyFile *  e_shell_view_get_state_key_file (EShellView *shell_view);
void        e_shell_view_set_state_dirty    (EShellView *shell_view);
void        e_shell_view_clear_search   (EShellView *shell_view);
void        e_shell_view_custom_search  (EShellView *shell_view,
                         EFilterRule *custom_rule);
void        e_shell_view_execute_search (EShellView *shell_view);
void        e_shell_view_block_execute_search
                        (EShellView *shell_view);
void        e_shell_view_unblock_execute_search
                        (EShellView *shell_view);
void        e_shell_view_update_actions (EShellView *shell_view);
GtkWidget * e_shell_view_show_popup_menu    (EShellView *shell_view,
                         const gchar *widget_path,
                         GdkEventButton *event);
GalViewInstance *
        e_shell_view_new_view_instance  (EShellView *shell_view,
                         const gchar *instance_id);

G_END_DECLS

#endif /* E_SHELL_VIEW_H */