git.maemo.org Git - modest/blob - src/widgets/modest-recpt-view.c

   1 /* Copyright (c) 2007, Nokia Corporation
   2  * All rights reserved.
   3  *
   4  * Redistribution and use in source and binary forms, with or without
   5  * modification, are permitted provided that the following conditions are
   6  * met:
   7  *
   8  * * Redistributions of source code must retain the above copyright
   9  *   notice, this list of conditions and the following disclaimer.
  10  * * Redistributions in binary form must reproduce the above copyright
  11  *   notice, this list of conditions and the following disclaimer in the
  12  *   documentation and/or other materials provided with the distribution.
  13  * * Neither the name of the Nokia Corporation nor the names of its
  14  *   contributors may be used to endorse or promote products derived from
  15  *   this software without specific prior written permission.
  16  *
  17  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
  18  * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  19  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
  20  * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
  21  * OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
  22  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  23  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
  24  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
  25  * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
  26  * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
  27  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  28  */
  29
  30 #include <config.h>
  31
  32 #include <glib/gi18n-lib.h>
  33
  34 #include <gtk/gtkwidget.h>
  35
  36 #include <modest-text-utils.h>
  37 #include <modest-recpt-view.h>
  38
  39 static GObjectClass *parent_class = NULL;
  40
  41 /* signals */
  42 enum {
  43         ACTIVATE_SIGNAL,
  44         LAST_SIGNAL
  45 };
  46
  47 typedef struct _ModestRecptViewPriv ModestRecptViewPriv;
  48
  49 struct _ModestRecptViewPriv
  50 {
  51         gboolean button_pressed;
  52         gdouble pressed_x, pressed_y;
  53 };
  54
  55 #define MODEST_RECPT_VIEW_GET_PRIVATE(o)        \
  56         (G_TYPE_INSTANCE_GET_PRIVATE ((o), MODEST_TYPE_RECPT_VIEW, ModestRecptViewPriv))
  57
  58 static guint signals[LAST_SIGNAL] = {0};
  59
  60
  61 /**
  62  * modest_recpt_view_new:
  63  *
  64  * Return value: a new #ModestRecptView instance implemented for Gtk+
  65  **/
  66 GtkWidget*
  67 modest_recpt_view_new (void)
  68 {
  69         ModestRecptView *self = g_object_new (MODEST_TYPE_RECPT_VIEW, NULL);
  70
  71         return GTK_WIDGET (self);
  72 }
  73
  74 void
  75 modest_recpt_view_set_recipients (ModestRecptView *recpt_view, const gchar *recipients)
  76 {
  77         const GtkWidget *text_view = NULL;
  78         GtkTextBuffer *buffer = NULL;
  79
  80         text_view = modest_scroll_text_get_text_view (MODEST_SCROLL_TEXT (recpt_view));
  81         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (text_view));
  82
  83         gtk_text_buffer_set_text (buffer, recipients, -1);
  84         if (GTK_WIDGET_REALIZED (recpt_view))
  85                 gtk_widget_queue_resize (GTK_WIDGET (recpt_view));
  86
  87 }
  88
  89 static gint
  90 button_press_event (GtkWidget *widget,
  91                     GdkEventButton *event,
  92                     gpointer user_data)
  93 {
  94         ModestRecptViewPriv *priv = MODEST_RECPT_VIEW_GET_PRIVATE (MODEST_RECPT_VIEW (user_data));
  95
  96         if (event->type == GDK_BUTTON_PRESS && event->button == 1) {
  97                 priv->button_pressed = TRUE;
  98                 priv->pressed_x = event->x;
  99                 priv->pressed_y = event->y;
 100         }
 101         return TRUE;
 102 }
 103
 104 static gint
 105 button_release_event (GtkWidget *widget,
 106                       GdkEventButton *event,
 107                       gpointer user_data)
 108 {
 109         ModestRecptViewPriv *priv = MODEST_RECPT_VIEW_GET_PRIVATE (MODEST_RECPT_VIEW (user_data));
 110         const GtkWidget *text_view = NULL;
 111
 112         text_view = modest_scroll_text_get_text_view (MODEST_SCROLL_TEXT (user_data));
 113
 114         if (event->type != GDK_BUTTON_RELEASE)
 115                 return TRUE;
 116
 117         if ((priv->button_pressed) &&
 118             (event->type == GDK_BUTTON_RELEASE) &&
 119             (priv->pressed_x == event->x) &&
 120             (priv->pressed_y == event->y)) {
 121                 priv->button_pressed = FALSE;
 122                 if (event->button == 1) {
 123                         gint buffer_x, buffer_y;
 124                         int index;
 125                         GtkTextIter iter;
 126                         gtk_text_view_window_to_buffer_coords (GTK_TEXT_VIEW (text_view), GTK_TEXT_WINDOW_WIDGET,
 127                                                                event->x, event->y, &buffer_x, &buffer_y);
 128                         gtk_text_view_get_iter_at_location (GTK_TEXT_VIEW (text_view), &iter, buffer_x, buffer_y);
 129                         index = gtk_text_iter_get_offset (&iter);
 130
 131                         if (!gtk_text_iter_is_end (&iter)) {
 132                                 int selection_start, selection_end;
 133                                 gboolean selected = FALSE;
 134                                 GtkTextIter start_iter, end_iter;
 135                                 GtkTextBuffer *buffer;
 136
 137                                 buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (text_view));
 138                                 if (gtk_text_buffer_get_selection_bounds (buffer, &start_iter, &end_iter) &&
 139                                     gtk_text_iter_in_range (&iter, &start_iter, &end_iter)) {
 140                                         selected = TRUE;
 141                                 } else {
 142                                         gchar *text = NULL;
 143                                         GtkTextIter start_iter, end_iter;
 144
 145                                         gtk_text_buffer_get_start_iter (buffer, &start_iter);
 146                                         gtk_text_buffer_get_end_iter (buffer, &end_iter);
 147                                         text = gtk_text_buffer_get_text (buffer, &start_iter, &end_iter, FALSE);
 148
 149                                         modest_text_utils_address_range_at_position (text,
 150                                                                                      index,
 151                                                                                      &selection_start, &selection_end);
 152                                         /* TODO: now gtk label tries to select more than the label as usual,
 153                                          *  and we force it to recover the selected region for the defined area.
 154                                          *  It should be fixed (maybe preventing gtklabel to manage selections
 155                                          *  in parallel with us
 156                                          */
 157                                         gtk_text_buffer_get_iter_at_offset (buffer, &start_iter, selection_start);
 158                                         gtk_text_buffer_get_iter_at_offset (buffer, &end_iter, selection_end);
 159                                         gtk_text_buffer_select_range (buffer, &start_iter, &end_iter);
 160
 161                                         if (text)
 162                                                 g_free (text);
 163
 164                                 }
 165
 166                                 if (selected) {
 167                                         gchar *selection;
 168
 169                                         gtk_text_buffer_get_selection_bounds (buffer, &start_iter, &end_iter);
 170                                         selection = gtk_text_buffer_get_text (buffer, &start_iter, &end_iter, FALSE);
 171                                         g_signal_emit (G_OBJECT (user_data), signals[ACTIVATE_SIGNAL], 0, selection);
 172                                         g_free (selection);
 173                                 }
 174
 175                         }
 176                         return TRUE;
 177                 }
 178         }
 179         priv->button_pressed = FALSE;
 180         return TRUE;
 181 }
 182
 183 static void
 184 modest_recpt_view_instance_init (GTypeInstance *instance, gpointer g_class)
 185 {
 186         const GtkTextView *text_view = NULL;
 187
 188         text_view = GTK_TEXT_VIEW(modest_scroll_text_get_text_view (MODEST_SCROLL_TEXT (instance)));
 189
 190         g_signal_connect (G_OBJECT (text_view), "button-press-event", G_CALLBACK (button_press_event), instance);
 191         g_signal_connect (G_OBJECT (text_view), "button-release-event", G_CALLBACK (button_release_event), instance);
 192
 193         return;
 194 }
 195
 196 static void
 197 modest_recpt_view_finalize (GObject *object)
 198 {
 199         (*parent_class->finalize) (object);
 200
 201         return;
 202 }
 203
 204 static void
 205 modest_recpt_view_class_init (ModestRecptViewClass *klass)
 206 {
 207         GObjectClass *object_class;
 208         GtkWidgetClass *widget_class;
 209
 210         parent_class = g_type_class_peek_parent (klass);
 211         object_class = (GObjectClass*) klass;
 212         widget_class = GTK_WIDGET_CLASS (klass);
 213
 214         object_class->finalize = modest_recpt_view_finalize;
 215
 216         klass->activate = NULL;
 217
 218         g_type_class_add_private (object_class, sizeof (ModestRecptViewPriv));
 219
 220         signals[ACTIVATE_SIGNAL] =
 221                 g_signal_new ("activate",
 222                               G_TYPE_FROM_CLASS (object_class),
 223                               G_SIGNAL_RUN_FIRST | G_SIGNAL_ACTION,
 224                               G_STRUCT_OFFSET(ModestRecptViewClass, activate),
 225                               NULL, NULL,
 226                               g_cclosure_marshal_VOID__STRING,
 227                               G_TYPE_NONE, 1, G_TYPE_STRING);
 228
 229         return;
 230 }
 231
 232 GType
 233 modest_recpt_view_get_type (void)
 234 {
 235         static GType type = 0;
 236
 237         if (G_UNLIKELY(type == 0))
 238         {
 239                 static const GTypeInfo info =
 240                 {
 241                   sizeof (ModestRecptViewClass),
 242                   NULL,   /* base_init */
 243                   NULL,   /* base_finalize */
 244                   (GClassInitFunc) modest_recpt_view_class_init,   /* class_init */
 245                   NULL,   /* class_finalize */
 246                   NULL,   /* class_data */
 247                   sizeof (ModestRecptView),
 248                   0,      /* n_preallocs */
 249                   modest_recpt_view_instance_init    /* instance_init */
 250                 };
 251
 252                 type = g_type_register_static (MODEST_TYPE_SCROLL_TEXT,
 253                         "ModestRecptView",
 254                         &info, 0);
 255
 256         }
 257
 258         return type;
 259 }