path: root/calendar/gui/dialogs/memo-page.c

/* Evolution calendar - Main page of the memo editor dialog
 *
 * Copyright (C) 2001 Ximian, Inc.
 *
 * Authors: Federico Mena-Quintero <federico@ximian.com>
 *          Miguel de Icaza <miguel@ximian.com>
 *          Seth Alves <alves@hungry.com>
 *          JP Rosevear <jpr@ximian.com>
 *          Nathan Owens <pianocomp81@yahoo.com>
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of version 2 of the GNU General Public
 * License as published by the Free Software Foundation.
 *
 * 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 <string.h>
#include <gtk/gtksignal.h>
#include <gtk/gtktextview.h>
#include <gtk/gtktogglebutton.h>
#include <gtk/gtkspinbutton.h>
#include <gtk/gtkoptionmenu.h>
#include <gtk/gtkmessagedialog.h>
#include <libgnome/gnome-i18n.h>
#include <glade/glade.h>
#include <libedataserverui/e-source-option-menu.h>
#include <widgets/misc/e-dateedit.h>

#include "common/authentication.h"
#include "e-util/e-dialog-widgets.h"
#include "e-util/e-categories-config.h"
#include "e-util/e-util-private.h"
#include "../calendar-config.h"
#include "comp-editor.h"
#include "comp-editor-util.h"
#include "e-send-options-utils.h"
#include "memo-page.h"


/* Private part of the TaskPage structure */
struct _MemoPagePrivate {
    /* Glade XML data */
    GladeXML *xml;

    /* Widgets from the Glade file */
    GtkWidget *main;

    GtkWidget *memo_content;

    /* Bonobo Controller for the menu/toolbar */
    BonoboUIComponent *uic;

    ECalComponentClassification classification;

    GtkWidget *categories_btn;
    GtkWidget *categories;

    GtkWidget *source_selector;

    gboolean updating;
};

static const int classification_map[] = {
    E_CAL_COMPONENT_CLASS_PUBLIC,
    E_CAL_COMPONENT_CLASS_PRIVATE,
    E_CAL_COMPONENT_CLASS_CONFIDENTIAL,
    -1
};



static void memo_page_finalize (GObject *object);

static GtkWidget *memo_page_get_widget (CompEditorPage *page);
static void memo_page_focus_main_widget (CompEditorPage *page);
static gboolean memo_page_fill_widgets (CompEditorPage *page, ECalComponent *comp);
static gboolean memo_page_fill_component (CompEditorPage *page, ECalComponent *comp);

G_DEFINE_TYPE (MemoPage, memo_page, TYPE_COMP_EDITOR_PAGE)



/**
 * memo_page_get_type:
 * 
 * Registers the #TaskPage class if necessary, and returns the type ID
 * associated to it.
 * 
 * Return value: The type ID of the #TaskPage class.
 **/

/* Class initialization function for the memo page */
static void
memo_page_class_init (MemoPageClass *klass)
{
    CompEditorPageClass *editor_page_class;
    GObjectClass *object_class;

    editor_page_class = (CompEditorPageClass *) klass;
    object_class = (GObjectClass *) klass;

    editor_page_class->get_widget = memo_page_get_widget;
    editor_page_class->focus_main_widget = memo_page_focus_main_widget;
    editor_page_class->fill_widgets = memo_page_fill_widgets;
    editor_page_class->fill_component = memo_page_fill_component;
    
    object_class->finalize = memo_page_finalize;
}

/* Object initialization function for the memo page */
static void
memo_page_init (MemoPage *mpage)
{
    MemoPagePrivate *priv;

    priv = g_new0 (MemoPagePrivate, 1);
    mpage->priv = priv;

    priv->xml = NULL;

    priv->main = NULL;
    priv->memo_content = NULL;
    priv->classification = E_CAL_COMPONENT_CLASS_NONE;
    priv->categories_btn = NULL;
    priv->categories = NULL;

    priv->updating = FALSE;

}

/* Destroy handler for the memo page */
static void
memo_page_finalize (GObject *object)
{
    MemoPage *mpage;
    MemoPagePrivate *priv;

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

    mpage = MEMO_PAGE (object);
    priv = mpage->priv;
    
    if (priv->main)
        gtk_widget_unref (priv->main);

    if (priv->xml) {
        g_object_unref (priv->xml);
        priv->xml = NULL;
    }

    g_free (priv);
    mpage->priv = NULL;

    if (G_OBJECT_CLASS (memo_page_parent_class)->finalize)
        (* G_OBJECT_CLASS (memo_page_parent_class)->finalize) (object);
}

static void
set_classification_menu (MemoPage *page, gint class)
{
    bonobo_ui_component_freeze (page->priv->uic, NULL);
    switch (class) {
        case E_CAL_COMPONENT_CLASS_PUBLIC:
            bonobo_ui_component_set_prop (
                page->priv->uic, "/commands/ActionClassPublic",
                "state", "1", NULL);
            break;
        case E_CAL_COMPONENT_CLASS_CONFIDENTIAL:
            bonobo_ui_component_set_prop (
                page->priv->uic, "/commands/ActionClassConfidential",
                "state", "1", NULL);
            break;
        case E_CAL_COMPONENT_CLASS_PRIVATE:
            bonobo_ui_component_set_prop (
                page->priv->uic, "/commands/ActionClassPrivate",
                "state", "1", NULL);
            break;
    }
    bonobo_ui_component_thaw (page->priv->uic, NULL);
}

/* get_widget handler for the task page */
static GtkWidget *
memo_page_get_widget (CompEditorPage *page)
{
    MemoPage *mpage;
    MemoPagePrivate *priv;

    mpage = MEMO_PAGE (page);
    priv = mpage->priv;

    return priv->main;
}

/* focus_main_widget handler for the memo page */
static void
memo_page_focus_main_widget (CompEditorPage *page)
{
    MemoPage *mpage;
    MemoPagePrivate *priv;

    mpage = MEMO_PAGE (page);
    priv = mpage->priv;

    gtk_widget_grab_focus (priv->memo_content);
}

/* Fills the widgets with default values */
static void
clear_widgets (MemoPage *mpage)
{
    MemoPagePrivate *priv;

    priv = mpage->priv;

    /* memo content */
    gtk_text_buffer_set_text (gtk_text_view_get_buffer (GTK_TEXT_VIEW (priv->memo_content)), "", 0);

    /* Classification */
    priv->classification = E_CAL_COMPONENT_CLASS_PRIVATE;
    set_classification_menu (mpage, priv->classification);

    /* Categories */
    e_dialog_editable_set (priv->categories, NULL);
}

void 
memo_page_set_classification (MemoPage *page, ECalComponentClassification class)
{
    page->priv->classification = class;
}

static void
sensitize_widgets (MemoPage *mpage)
{
    gboolean read_only, sens, sensitize;
    MemoPagePrivate *priv;
    
    priv = mpage->priv;

    if (!e_cal_is_read_only (COMP_EDITOR_PAGE (mpage)->client, &read_only, NULL))
        read_only = TRUE;
    
    if (COMP_EDITOR_PAGE (mpage)->flags & COMP_EDITOR_IS_ASSIGNED)
        sens = COMP_EDITOR_PAGE (mpage)->flags & COMP_EDITOR_PAGE_USER_ORG;

    sensitize = (!read_only && sens);
    
    priv = mpage->priv;

    if (!e_cal_is_read_only (COMP_EDITOR_PAGE (mpage)->client, &read_only, NULL))
        read_only = TRUE;
    
    gtk_widget_set_sensitive (priv->memo_content, !read_only);
    gtk_widget_set_sensitive (priv->categories_btn, !read_only);
    gtk_entry_set_editable (GTK_ENTRY (priv->categories), !read_only);

    bonobo_ui_component_set_prop (priv->uic, "/commands/ActionClassPublic", "sensitive", sensitize ? "1" : "0"
            , NULL);
    bonobo_ui_component_set_prop (priv->uic, "/commands/ActionClassPrivate", "sensitive", sensitize ? "1" : "0"
            , NULL);
    bonobo_ui_component_set_prop (priv->uic, "/commands/ActionClassConfidential", "sensitive",
                sensitize ? "1" : "0", NULL);
    bonobo_ui_component_set_prop (priv->uic, "/commands/ViewCategories", "sensitive", sensitize ? "1" : "0"
            , NULL);
}

/* fill_widgets handler for the memo page */
static gboolean
memo_page_fill_widgets (CompEditorPage *page, ECalComponent *comp)
{
    MemoPage *mpage;
    MemoPagePrivate *priv;
    ECalComponentClassification cl;
    GSList *l;
    const char *categories;
    ESource *source;

    mpage = MEMO_PAGE (page);
    priv = mpage->priv;

    priv->updating = TRUE;
    
    /* Clean the screen */
    clear_widgets (mpage);

    e_cal_component_get_description_list (comp, &l);
    if (l && l->data) {
        ECalComponentText *dtext;
        
        dtext = l->data;
        gtk_text_buffer_set_text (gtk_text_view_get_buffer (GTK_TEXT_VIEW (priv->memo_content)),
                      dtext->value ? dtext->value : "", -1);
    } else {
        gtk_text_buffer_set_text (gtk_text_view_get_buffer (GTK_TEXT_VIEW (priv->memo_content)),
                      "", 0);
    }
    e_cal_component_free_text_list (l);

    /* Classification. */
    e_cal_component_get_classification (comp, &cl);

    switch (cl) {
    case E_CAL_COMPONENT_CLASS_PUBLIC:
        {
            cl = E_CAL_COMPONENT_CLASS_PUBLIC;
            break;
        }
    case E_CAL_COMPONENT_CLASS_PRIVATE:
        {   
            cl = E_CAL_COMPONENT_CLASS_PRIVATE;
            break;
        }
    case E_CAL_COMPONENT_CLASS_CONFIDENTIAL:
        {
            cl = E_CAL_COMPONENT_CLASS_CONFIDENTIAL;
            break;
        }
    default:
        /* default to PUBLIC */
        cl = E_CAL_COMPONENT_CLASS_PUBLIC;
                break;
    }
    set_classification_menu (mpage, cl);

    /* Categories */
    e_cal_component_get_categories (comp, &categories);
    e_dialog_editable_set (priv->categories, categories);

    /* Source */
    source = e_cal_get_source (page->client);
    e_source_option_menu_select (E_SOURCE_OPTION_MENU (priv->source_selector), source);

    priv->updating = FALSE;

    sensitize_widgets (mpage);

    return TRUE;
}

/* fill_component handler for the memo page */
static gboolean
memo_page_fill_component (CompEditorPage *page, ECalComponent *comp)
{
    MemoPage *mpage;
    MemoPagePrivate *priv;
    char *cat, *str;
    int i;
    GtkTextBuffer *text_buffer;
    GtkTextIter text_iter_start, text_iter_end;

    mpage = MEMO_PAGE (page);
    priv = mpage->priv;
    text_buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (priv->memo_content));

    /* Memo Content */

    gtk_text_buffer_get_start_iter (text_buffer, &text_iter_start);
    gtk_text_buffer_get_end_iter   (text_buffer, &text_iter_end);
    str = gtk_text_buffer_get_text (text_buffer, &text_iter_start, &text_iter_end, FALSE);

    if (!str || strlen (str) == 0){
        e_cal_component_set_description_list (comp, NULL);
        e_cal_component_set_summary(comp, NULL);
    }
    else {
        int idxToUse = -1, nstr = strlen(str);
        gboolean foundNL = FALSE;
        GSList l;
        ECalComponentText text, sumText;
        char *txt;

        for(i = 0; i<nstr && i<50; i++){
            if(str[i] == '\n'){
                idxToUse = i;
                foundNL = TRUE;
                break;
            }
        }
        
        if(foundNL == FALSE){
            if(nstr > 50){
                sumText.value = txt = g_strndup(str, 50);
            }
            else{
                sumText.value = txt = g_strdup(str);
            }
        }
        else{
            sumText.value = txt = g_strndup(str, idxToUse); /* cuts off '\n' */
        }
        
        sumText.altrep = NULL;

        text.value = str;
        text.altrep = NULL;
        l.data = &text;
        l.next = NULL;

        e_cal_component_set_summary(comp, &sumText);
        e_cal_component_set_description_list (comp, &l);
        
        g_free(txt);
    }

    if (str)
        g_free (str);

    /* Classification. */
    e_cal_component_set_classification (comp, priv->classification);

    /* Categories */
    cat = e_dialog_editable_get (priv->categories);
    str = comp_editor_strip_categories (cat);
    if (cat)
        g_free (cat);

    e_cal_component_set_categories (comp, str);

    if (str)
        g_free (str);

    return TRUE;
}

void
memo_page_set_show_categories (MemoPage *page, gboolean state)
{
    if (state) {
        gtk_widget_show (page->priv->categories_btn);
        gtk_widget_show (page->priv->categories);   
    } else {
        gtk_widget_hide (page->priv->categories_btn);
        gtk_widget_hide (page->priv->categories);
    }
}

/* Gets the widgets from the XML file and returns if they are all available. */
static gboolean
get_widgets (MemoPage *mpage)
{
    CompEditorPage *page = COMP_EDITOR_PAGE (mpage);
    MemoPagePrivate *priv;
    GSList *accel_groups;
    GtkWidget *toplevel;

    priv = mpage->priv;

#define GW(name) glade_xml_get_widget (priv->xml, name)

    priv->main = GW ("memo-page");
    if (!priv->main){
        g_warning("couldn't find memo-page!");
        return FALSE;
    }

    /* Get the GtkAccelGroup from the toplevel window, so we can install
       it when the notebook page is mapped. */
    toplevel = gtk_widget_get_toplevel (priv->main);
    accel_groups = gtk_accel_groups_from_object (G_OBJECT (toplevel));
    if (accel_groups) {
        page->accel_group = accel_groups->data;
        gtk_accel_group_ref (page->accel_group);
    }

    gtk_widget_ref (priv->main);
    gtk_container_remove (GTK_CONTAINER (priv->main->parent), priv->main);

    priv->memo_content = GW ("memo_content");

    priv->categories_btn = GW ("categories-button");
    priv->categories = GW ("categories");

    priv->source_selector = GW ("source");

#undef GW

    return (priv->memo_content
        && priv->categories_btn
        && priv->categories);
}

/* Callback used when the categories button is clicked; we must bring up the
 * category list dialog.
 */
static void
categories_clicked_cb (GtkWidget *button, gpointer data)
{
    MemoPage *mpage;
    MemoPagePrivate *priv;
    GtkWidget *entry;

    mpage = MEMO_PAGE (data);
    priv = mpage->priv;

    entry = priv->categories;
    e_categories_config_open_dialog_for_entry (GTK_ENTRY (entry));
}

/* This is called when any field is changed; it notifies upstream. */
static void
field_changed_cb (GtkWidget *widget, gpointer data)
{
    MemoPage *mpage;
    MemoPagePrivate *priv;
    
    mpage = MEMO_PAGE (data);
    priv = mpage->priv;
    
    if (!priv->updating)
        comp_editor_page_notify_changed (COMP_EDITOR_PAGE (mpage));
}

static void
source_changed_cb (GtkWidget *widget, ESource *source, gpointer data)
{
    MemoPage *mpage;
    MemoPagePrivate *priv;

    mpage = MEMO_PAGE (data);
    priv = mpage->priv;

    if (!priv->updating) {
        ECal *client;

        client = auth_new_cal_from_source (source, E_CAL_SOURCE_TYPE_JOURNAL);
        if (!client || !e_cal_open (client, FALSE, NULL)) {
            GtkWidget *dialog;

            if (client)
                g_object_unref (client);

            e_source_option_menu_select (E_SOURCE_OPTION_MENU (priv->source_selector),
                             e_cal_get_source (COMP_EDITOR_PAGE (mpage)->client));

            dialog = gtk_message_dialog_new (NULL, GTK_DIALOG_MODAL,
                             GTK_MESSAGE_WARNING, GTK_BUTTONS_OK,
                             _("Unable to open memos in '%s'."),
                             e_source_peek_name (source));
            gtk_dialog_run (GTK_DIALOG (dialog));
            gtk_widget_destroy (dialog);
        } else {
            comp_editor_notify_client_changed (
                COMP_EDITOR (gtk_widget_get_toplevel (priv->main)),
                client);
            sensitize_widgets (mpage);
        }
    }
}

/*sets the current focused widget */
static gboolean
widget_focus_in_cb (GtkWidget *widget, GdkEventFocus *event, gpointer data)
{
    MemoPage *mpage;
    mpage = MEMO_PAGE (data);

    comp_editor_page_set_focused_widget (COMP_EDITOR_PAGE (mpage), widget);

    return FALSE;
}

/*unset the current focused widget */
static gboolean
widget_focus_out_cb (GtkWidget *widget, GdkEventFocus *event, gpointer data)
{
    MemoPage *mpage;
    mpage = MEMO_PAGE (data);

    comp_editor_page_unset_focused_widget (COMP_EDITOR_PAGE (mpage), widget);

    return FALSE;
}

/* Hooks the widget signals */
static gboolean
init_widgets (MemoPage *mpage)
{
    MemoPagePrivate *priv;
    GtkTextBuffer *text_buffer;

    priv = mpage->priv;

    /* Memo Content */
    text_buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (priv->memo_content));

    gtk_text_view_set_wrap_mode (GTK_TEXT_VIEW (priv->memo_content), GTK_WRAP_WORD);

    g_signal_connect(priv->memo_content, "focus-in-event",
        G_CALLBACK (widget_focus_in_cb), mpage);
    g_signal_connect(priv->memo_content, "focus-out-event",
        G_CALLBACK (widget_focus_out_cb), mpage);

    /* Categories button */
    g_signal_connect((priv->categories_btn), "clicked",
                G_CALLBACK (categories_clicked_cb), mpage);

    /* Source selector */
    g_signal_connect((priv->source_selector), "source_selected",
             G_CALLBACK (source_changed_cb), mpage);

    /* Connect the default signal handler to use to make sure the "changed"
       field gets set whenever a field is changed. */

    /* Belongs to priv->memo_content */
    g_signal_connect ((text_buffer), "changed",
              G_CALLBACK (field_changed_cb), mpage);

    g_signal_connect((priv->categories), "changed",
                G_CALLBACK (field_changed_cb), mpage);

    memo_page_set_show_categories (mpage, calendar_config_get_show_categories());

    return TRUE;
}


/**
 * memo_page_construct:
 * @mpage: An memo page.
 * 
 * Constructs an memo page by loading its Glade data.
 * 
 * Return value: The same object as @mpage, or NULL if the widgets could not be
 * created.
 **/
MemoPage *
memo_page_construct (MemoPage *mpage)
{
    MemoPagePrivate *priv;
    char *gladefile;

    priv = mpage->priv;

    gladefile = g_build_filename (EVOLUTION_GLADEDIR,
                      "memo-page.glade",
                      NULL);
    priv->xml = glade_xml_new (gladefile, NULL, NULL);
    g_free (gladefile);

    if (!priv->xml) {
        g_message ("memo_page_construct(): "
               "Could not load the Glade XML file!");
        return NULL;
    }

    if (!get_widgets (mpage)) {
        g_message ("memo_page_construct(): "
               "Could not find all widgets in the XML file!");
        return NULL;
    }

    if (!init_widgets (mpage)) {
        g_message ("memo_page_construct(): " 
               "Could not initialize the widgets!");
        return NULL;
    }

    return mpage;
}

/**
 * memo_page_new:
 * 
 * Creates a new memo page.
 * 
 * Return value: A newly-created task page, or NULL if the page could
 * not be created.
 **/
MemoPage *
memo_page_new (BonoboUIComponent *uic)
{
    MemoPage *mpage;

    mpage = gtk_type_new (TYPE_MEMO_PAGE);
    mpage->priv->uic = uic;
    if (!memo_page_construct (mpage)) {
        g_object_unref (mpage);
        return NULL;
    }

    return mpage;
}

GtkWidget *memo_page_create_source_option_menu (void);

GtkWidget *
memo_page_create_source_option_menu (void)
{
    GtkWidget   *menu;
    GConfClient *gconf_client;
    ESourceList *source_list;

    gconf_client = gconf_client_get_default ();
    source_list = e_source_list_new_for_gconf (gconf_client, "/apps/evolution/memos/sources");

    menu = e_source_option_menu_new (source_list);
    g_object_unref (source_list);

    gtk_widget_show (menu);
    return menu;
}