src/alertpanel.c

   1 /*
   2  * Claws Mail -- a GTK+ based, lightweight, and fast e-mail client
   3  * Copyright (C) 1999-2017 Hiroyuki Yamamoto and the Claws Mail team
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 3 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this program. If not, see <http://www.gnu.org/licenses/>.
  17  */
  18
  19 #ifdef HAVE_CONFIG_H
  20 #  include "config.h"
  21 #include "claws-features.h"
  22 #endif
  23
  24 #include <stddef.h>
  25
  26 #include <glib.h>
  27 #include <glib/gi18n.h>
  28 #include <gtk/gtk.h>
  29 #include <gdk/gdkkeysyms.h>
  30
  31 #include "hooks.h"
  32 #include "mainwindow.h"
  33 #include "alertpanel.h"
  34 #include "manage_window.h"
  35 #include "utils.h"
  36 #include "gtkutils.h"
  37 #include "inc.h"
  38 #include "logwindow.h"
  39 #include "prefs_common.h"
  40
  41 #define ALERT_PANEL_WIDTH       380
  42 #define TITLE_HEIGHT            72
  43 #define MESSAGE_HEIGHT          62
  44 #define ALERT_PANEL_BUFSIZE     1024
  45
  46 static AlertValue value;
  47 static gboolean alertpanel_is_open = FALSE;
  48 static GtkWidget *dialog;
  49
  50 static void alertpanel_show             (void);
  51 static void alertpanel_create           (const gchar    *title,
  52                                          const gchar    *message,
  53                                          const gchar    *button1_label,
  54                                          const gchar    *button2_label,
  55                                          const gchar    *button3_label,
  56                                          AlertFocus    focus,
  57                                          gboolean        can_disable,
  58                                          GtkWidget      *custom_widget,
  59                                          gint            alert_type);
  60
  61 static void alertpanel_button_toggled   (GtkToggleButton        *button,
  62                                          gpointer                data);
  63 static void alertpanel_button_clicked   (GtkWidget              *widget,
  64                                          gpointer                data);
  65 static gint alertpanel_deleted          (GtkWidget              *widget,
  66                                          GdkEventAny            *event,
  67                                          gpointer                data);
  68 static gboolean alertpanel_close        (GtkWidget              *widget,
  69                                          GdkEventAny            *event,
  70                                          gpointer                data);
  71
  72 AlertValue alertpanel_with_widget(const gchar *title,
  73                                   const gchar *message,
  74                                   const gchar *button1_label,
  75                                   const gchar *button2_label,
  76                                   const gchar *button3_label,
  77                                         AlertFocus   focus,
  78                                   gboolean     can_disable,
  79                                   GtkWidget   *widget)
  80 {
  81         return alertpanel_full(title, message, button1_label,
  82                                     button2_label, button3_label, focus,
  83                                     can_disable, widget, ALERT_QUESTION);
  84 }
  85
  86 AlertValue alertpanel_full(const gchar *title, const gchar *message,
  87                            const gchar *button1_label,
  88                            const gchar *button2_label,
  89                            const gchar *button3_label,
  90                                  AlertFocus   focus,
  91                            gboolean     can_disable,
  92                            GtkWidget   *widget,
  93                            AlertType    alert_type)
  94 {
  95         if (alertpanel_is_open)
  96                 return -1;
  97         else {
  98                 alertpanel_is_open = TRUE;
  99                 hooks_invoke(ALERTPANEL_OPENED_HOOKLIST, &alertpanel_is_open);
 100         }
 101         alertpanel_create(title, message, button1_label, button2_label,
 102                           button3_label, focus, can_disable, widget, alert_type);
 103         alertpanel_show();
 104
 105         debug_print("return value = %d\n", value);
 106         return value;
 107 }
 108
 109 AlertValue alertpanel(const gchar *title,
 110                       const gchar *message,
 111                       const gchar *button1_label,
 112                       const gchar *button2_label,
 113                       const gchar *button3_label,
 114                                         AlertFocus   focus)
 115 {
 116         return alertpanel_full(title, message, button1_label, button2_label,
 117                                button3_label, focus, FALSE, NULL, ALERT_QUESTION);
 118 }
 119
 120 static void alertpanel_message(const gchar *title, const gchar *message, gint type)
 121 {
 122         if (alertpanel_is_open)
 123                 return;
 124         else {
 125                 alertpanel_is_open = TRUE;
 126                 hooks_invoke(ALERTPANEL_OPENED_HOOKLIST, &alertpanel_is_open);
 127         }
 128
 129         alertpanel_create(title, message, GTK_STOCK_CLOSE, NULL, NULL,
 130                           ALERTFOCUS_FIRST, FALSE, NULL, type);
 131         alertpanel_show();
 132 }
 133
 134 void alertpanel_notice(const gchar *format, ...)
 135 {
 136         va_list args;
 137         gchar buf[ALERT_PANEL_BUFSIZE];
 138
 139         va_start(args, format);
 140         g_vsnprintf(buf, sizeof(buf), format, args);
 141         va_end(args);
 142         strretchomp(buf);
 143
 144         alertpanel_message(_("Notice"), buf, ALERT_NOTICE);
 145 }
 146
 147 void alertpanel_warning(const gchar *format, ...)
 148 {
 149         va_list args;
 150         gchar buf[ALERT_PANEL_BUFSIZE];
 151
 152         va_start(args, format);
 153         g_vsnprintf(buf, sizeof(buf), format, args);
 154         va_end(args);
 155         strretchomp(buf);
 156
 157         alertpanel_message(_("Warning"), buf, ALERT_WARNING);
 158 }
 159
 160 void alertpanel_error(const gchar *format, ...)
 161 {
 162         va_list args;
 163         gchar buf[ALERT_PANEL_BUFSIZE];
 164
 165         va_start(args, format);
 166         g_vsnprintf(buf, sizeof(buf), format, args);
 167         va_end(args);
 168         strretchomp(buf);
 169
 170         alertpanel_message(_("Error"), buf, ALERT_ERROR);
 171 }
 172
 173 /*!
 174  *\brief        display an error with a View Log button
 175  *
 176  */
 177 void alertpanel_error_log(const gchar *format, ...)
 178 {
 179         va_list args;
 180         int val;
 181         MainWindow *mainwin;
 182         gchar buf[ALERT_PANEL_BUFSIZE];
 183
 184         va_start(args, format);
 185         g_vsnprintf(buf, sizeof(buf), format, args);
 186         va_end(args);
 187         strretchomp(buf);
 188
 189         mainwin = mainwindow_get_mainwindow();
 190
 191         if (mainwin && mainwin->logwin) {
 192                 mainwindow_clear_error(mainwin);
 193                 val = alertpanel_full(_("Error"), buf, GTK_STOCK_CLOSE,
 194                                       _("_View log"), NULL, ALERTFOCUS_FIRST, FALSE, NULL,
 195                                       ALERT_ERROR);
 196                 if (val == G_ALERTALTERNATE)
 197                         log_window_show(mainwin->logwin);
 198         } else
 199                 alertpanel_error("%s", buf);
 200 }
 201
 202 static void alertpanel_show(void)
 203 {
 204         gtk_window_set_modal(GTK_WINDOW(dialog), TRUE);
 205         manage_window_set_transient(GTK_WINDOW(dialog));
 206         gtk_widget_show_all(dialog);
 207         value = G_ALERTWAIT;
 208
 209         if (gdk_pointer_is_grabbed())
 210                 gdk_pointer_ungrab(GDK_CURRENT_TIME);
 211         inc_lock();
 212         while ((value & G_ALERT_VALUE_MASK) == G_ALERTWAIT)
 213                 gtk_main_iteration();
 214
 215         gtk_widget_destroy(dialog);
 216         GTK_EVENTS_FLUSH();
 217
 218         alertpanel_is_open = FALSE;
 219         hooks_invoke(ALERTPANEL_OPENED_HOOKLIST, &alertpanel_is_open);
 220
 221         inc_unlock();
 222 }
 223
 224 static void alertpanel_create(const gchar *title,
 225                               const gchar *message,
 226                               const gchar *button1_label,
 227                               const gchar *button2_label,
 228                               const gchar *button3_label,
 229                                                 AlertFocus   focus,
 230                               gboolean     can_disable,
 231                               GtkWidget   *custom_widget,
 232                               gint         alert_type)
 233 {
 234         static PangoFontDescription *font_desc;
 235         GtkWidget *image;
 236         GtkWidget *label;
 237         GtkWidget *hbox;
 238         GtkWidget *vbox;
 239         GtkWidget *disable_checkbtn;
 240         GtkWidget *confirm_area;
 241         GtkWidget *button1;
 242         GtkWidget *button2;
 243         GtkWidget *button3;
 244         GtkWidget *focusbutton;
 245         const gchar *label2;
 246         const gchar *label3;
 247         gchar *tmp = title?g_markup_printf_escaped("%s", title)
 248                         :g_strdup("");
 249         gchar *title_full = g_strdup_printf("<span weight=\"bold\" "
 250                                 "size=\"larger\">%s</span>",
 251                                 tmp);
 252         g_free(tmp);
 253         debug_print("Creating alert panel dialog...\n");
 254
 255         dialog = gtk_dialog_new();
 256         gtk_window_set_title(GTK_WINDOW(dialog), title);
 257         gtk_window_set_resizable(GTK_WINDOW(dialog), TRUE);
 258
 259         gtk_window_set_default_size(GTK_WINDOW(dialog), 375, 100);
 260
 261         gtk_window_set_position(GTK_WINDOW(dialog), GTK_WIN_POS_CENTER);
 262         g_signal_connect(G_OBJECT(dialog), "delete_event",
 263                          G_CALLBACK(alertpanel_deleted),
 264                          (gpointer)G_ALERTCANCEL);
 265         g_signal_connect(G_OBJECT(dialog), "key_press_event",
 266                          G_CALLBACK(alertpanel_close),
 267                          (gpointer)G_ALERTCANCEL);
 268
 269         /* for title icon, label and message */
 270         hbox = gtk_hbox_new(FALSE, 12);
 271         gtk_container_set_border_width(GTK_CONTAINER(hbox), 12);
 272         gtk_box_pack_start(GTK_BOX(gtk_dialog_get_content_area(GTK_DIALOG(dialog))),
 273                            hbox, FALSE, FALSE, 0);
 274
 275         /* title icon */
 276         switch (alert_type) {
 277         case ALERT_QUESTION:
 278                 image = gtk_image_new_from_stock
 279                         (GTK_STOCK_DIALOG_QUESTION, GTK_ICON_SIZE_DIALOG);
 280                 break;
 281         case ALERT_WARNING:
 282                 image = gtk_image_new_from_stock
 283                         (GTK_STOCK_DIALOG_WARNING, GTK_ICON_SIZE_DIALOG);
 284                 break;
 285         case ALERT_ERROR:
 286                 image = gtk_image_new_from_stock
 287                         (GTK_STOCK_DIALOG_ERROR, GTK_ICON_SIZE_DIALOG);
 288                 break;
 289         case ALERT_NOTICE:
 290         default:
 291                 image = gtk_image_new_from_stock
 292                         (GTK_STOCK_DIALOG_INFO, GTK_ICON_SIZE_DIALOG);
 293                 break;
 294         }
 295         gtk_misc_set_alignment(GTK_MISC(image), 0.5, 0.0);
 296         gtk_box_pack_start(GTK_BOX(hbox), image, FALSE, FALSE, 0);
 297
 298         vbox = gtk_vbox_new (FALSE, 12);
 299         gtk_box_pack_start (GTK_BOX (hbox), vbox, TRUE, TRUE, 0);
 300         gtk_widget_show (vbox);
 301
 302         label = gtk_label_new(title_full);
 303         gtk_misc_set_alignment(GTK_MISC(label), 0, 0.5);
 304         gtk_label_set_justify(GTK_LABEL(label), GTK_JUSTIFY_LEFT);
 305         gtk_label_set_use_markup(GTK_LABEL (label), TRUE);
 306         gtk_box_pack_start(GTK_BOX(vbox), label, FALSE, FALSE, 0);
 307         gtk_label_set_line_wrap(GTK_LABEL(label), TRUE);
 308         if (!font_desc) {
 309                 gint size;
 310
 311                 size = pango_font_description_get_size
 312                         (gtk_widget_get_style(label)->font_desc);
 313                 font_desc = pango_font_description_new();
 314                 pango_font_description_set_weight
 315                         (font_desc, PANGO_WEIGHT_BOLD);
 316                 pango_font_description_set_size
 317                         (font_desc, size * PANGO_SCALE_LARGE);
 318         }
 319         if (font_desc)
 320                 gtk_widget_modify_font(label, font_desc);
 321         g_free(title_full);
 322
 323         label = gtk_label_new(message);
 324         gtk_misc_set_alignment(GTK_MISC(label), 0, 0.5);
 325         gtk_label_set_justify(GTK_LABEL(label), GTK_JUSTIFY_LEFT);
 326         gtk_label_set_line_wrap(GTK_LABEL(label), TRUE);
 327         gtk_label_set_selectable(GTK_LABEL(label), TRUE);
 328         gtk_label_set_use_markup(GTK_LABEL(label), TRUE);
 329         gtk_widget_set_can_focus(label, FALSE);
 330         gtk_box_pack_start(GTK_BOX(vbox), label, FALSE, FALSE, 0);
 331         gtk_widget_show(label);
 332
 333         /* Claws: custom widget */
 334         if (custom_widget) {
 335                 gtk_box_pack_start(GTK_BOX(vbox), custom_widget, FALSE,
 336                                    FALSE, 0);
 337         }
 338
 339         if (can_disable) {
 340                 hbox = gtk_hbox_new(FALSE, 0);
 341                 gtk_box_pack_start(GTK_BOX(
 342                         gtk_dialog_get_content_area(GTK_DIALOG(dialog))), hbox,
 343                                    FALSE, FALSE, 0);
 344
 345                 disable_checkbtn = gtk_check_button_new_with_label
 346                         (_("Show this message next time"));
 347                 gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(disable_checkbtn),
 348                                              TRUE);
 349                 gtk_box_pack_start(GTK_BOX(hbox), disable_checkbtn,
 350                                    FALSE, FALSE, 12);
 351                 g_signal_connect(G_OBJECT(disable_checkbtn), "toggled",
 352                                  G_CALLBACK(alertpanel_button_toggled),
 353                                  GUINT_TO_POINTER(G_ALERTDISABLE));
 354         }
 355
 356         /* for button(s) */
 357         if (!button1_label)
 358                 button1_label = GTK_STOCK_OK;
 359         label2 = button2_label;
 360         label3 = button3_label;
 361
 362         gtkut_stock_button_set_create(&confirm_area,
 363                                       &button1, button1_label,
 364                                       button2_label ? &button2 : NULL, label2,
 365                                       button3_label ? &button3 : NULL, label3);
 366
 367         gtk_box_pack_end(GTK_BOX(gtk_dialog_get_action_area(GTK_DIALOG(dialog))),
 368                          confirm_area, FALSE, FALSE, 0);
 369         gtk_container_set_border_width(GTK_CONTAINER(confirm_area), 5);
 370
 371         /* Set focus on correct button as requested. */
 372         focusbutton = button1;
 373         switch (focus) {
 374                 case ALERTFOCUS_SECOND:
 375                         if (button2_label != NULL)
 376                                 focusbutton = button2;
 377                         break;
 378                 case ALERTFOCUS_THIRD:
 379                         if (button3_label != NULL)
 380                                 focusbutton = button3;
 381                         break;
 382                 case ALERTFOCUS_FIRST:
 383                 default:
 384                         focusbutton = button1;
 385                         break;
 386         }
 387         gtk_widget_grab_default(focusbutton);
 388         gtk_widget_grab_focus(focusbutton);
 389
 390         g_signal_connect(G_OBJECT(button1), "clicked",
 391                          G_CALLBACK(alertpanel_button_clicked),
 392                          GUINT_TO_POINTER(G_ALERTDEFAULT));
 393         if (button2_label)
 394                 g_signal_connect(G_OBJECT(button2), "clicked",
 395                                  G_CALLBACK(alertpanel_button_clicked),
 396                                  GUINT_TO_POINTER(G_ALERTALTERNATE));
 397         if (button3_label)
 398                 g_signal_connect(G_OBJECT(button3), "clicked",
 399                                  G_CALLBACK(alertpanel_button_clicked),
 400                                  GUINT_TO_POINTER(G_ALERTOTHER));
 401
 402         gtk_widget_show_all(dialog);
 403 }
 404
 405 static void alertpanel_button_toggled(GtkToggleButton *button,
 406                                       gpointer data)
 407 {
 408         if (gtk_toggle_button_get_active(button))
 409                 value &= ~GPOINTER_TO_UINT(data);
 410         else
 411                 value |= GPOINTER_TO_UINT(data);
 412 }
 413
 414 static void alertpanel_button_clicked(GtkWidget *widget, gpointer data)
 415 {
 416         value = (value & ~G_ALERT_VALUE_MASK) | (AlertValue)data;
 417 }
 418
 419 static gint alertpanel_deleted(GtkWidget *widget, GdkEventAny *event,
 420                                gpointer data)
 421 {
 422         value = (value & ~G_ALERT_VALUE_MASK) | (AlertValue)data;
 423         return TRUE;
 424 }
 425
 426 static gboolean alertpanel_close(GtkWidget *widget, GdkEventAny *event,
 427                                  gpointer data)
 428 {
 429         if (event->type == GDK_KEY_PRESS)
 430                 if (((GdkEventKey *)event)->keyval != GDK_KEY_Escape)
 431                         return FALSE;
 432
 433         value = (value & ~G_ALERT_VALUE_MASK) | (AlertValue)data;
 434         return FALSE;
 435 }