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 /* static functions: GObject */
  61 static void modest_recpt_view_instance_init (GTypeInstance *instance, gpointer g_class);
  62 static void modest_recpt_view_finalize (GObject *object);
  63 static void modest_recpt_view_class_init (ModestRecptViewClass *klass);
  64 /* static functions: GtkWidget */
  65 static gint button_press_event (GtkWidget *widget, GdkEventButton *event, gpointer user_data);
  66 static gint button_release_event (GtkWidget *widget, GdkEventButton *event, gpointer user_data);
  67
  68 /**
  69  * modest_recpt_view_new:
  70  *
  71  * Return value: a new #ModestRecptView instance implemented for Gtk+
  72  **/
  73 GtkWidget*
  74 modest_recpt_view_new (void)
  75 {
  76         ModestRecptView *self = g_object_new (MODEST_TYPE_RECPT_VIEW, NULL);
  77
  78         return GTK_WIDGET (self);
  79 }
  80
  81 void
  82 modest_recpt_view_set_recipients (ModestRecptView *recpt_view, const gchar *recipients)
  83 {
  84         const GtkWidget *text_view = NULL;
  85         GtkTextBuffer *buffer = NULL;
  86
  87         text_view = modest_scroll_text_get_text_view (MODEST_SCROLL_TEXT (recpt_view));
  88         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (text_view));
  89
  90         gtk_text_buffer_set_text (buffer, recipients, -1);
  91         if (GTK_WIDGET_REALIZED (recpt_view))
  92                 gtk_widget_queue_resize (GTK_WIDGET (recpt_view));
  93
  94 }
  95
  96 static gint
  97 button_press_event (GtkWidget *widget,
  98                     GdkEventButton *event,
  99                     gpointer user_data)
 100 {
 101         ModestRecptViewPriv *priv = MODEST_RECPT_VIEW_GET_PRIVATE (MODEST_RECPT_VIEW (user_data));
 102
 103         if (event->type == GDK_BUTTON_PRESS && event->button == 1) {
 104                 priv->button_pressed = TRUE;
 105                 priv->pressed_x = event->x;
 106                 priv->pressed_y = event->y;
 107         }
 108         return TRUE;
 109 }
 110
 111 static gint
 112 button_release_event (GtkWidget *widget,
 113                       GdkEventButton *event,
 114                       gpointer user_data)
 115 {
 116         ModestRecptViewPriv *priv = MODEST_RECPT_VIEW_GET_PRIVATE (MODEST_RECPT_VIEW (user_data));
 117         const GtkWidget *text_view = NULL;
 118
 119         text_view = modest_scroll_text_get_text_view (MODEST_SCROLL_TEXT (user_data));
 120
 121         if (event->type != GDK_BUTTON_RELEASE)
 122                 return TRUE;
 123
 124         if ((priv->button_pressed) &&
 125             (event->type == GDK_BUTTON_RELEASE) &&
 126             (priv->pressed_x == event->x) &&
 127             (priv->pressed_y == event->y)) {
 128                 priv->button_pressed = FALSE;
 129                 if (event->button == 1) {
 130                         gint buffer_x, buffer_y;
 131                         int index;
 132                         GtkTextIter iter;
 133                         gtk_text_view_window_to_buffer_coords (GTK_TEXT_VIEW (text_view), GTK_TEXT_WINDOW_WIDGET,
 134                                                                event->x, event->y, &buffer_x, &buffer_y);
 135                         gtk_text_view_get_iter_at_location (GTK_TEXT_VIEW (text_view), &iter, buffer_x, buffer_y);
 136                         index = gtk_text_iter_get_offset (&iter);
 137
 138                         if (!gtk_text_iter_is_end (&iter)) {
 139                                 int selection_start, selection_end;
 140                                 gboolean selected = FALSE;
 141                                 GtkTextIter start_iter, end_iter;
 142                                 GtkTextBuffer *buffer;
 143
 144                                 buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (text_view));
 145                                 if (gtk_text_buffer_get_selection_bounds (buffer, &start_iter, &end_iter) &&
 146                                     gtk_text_iter_in_range (&iter, &start_iter, &end_iter)) {
 147                                         selected = TRUE;
 148                                 } else {
 149                                         gchar *text = NULL;
 150                                         GtkTextIter start_iter, end_iter;
 151
 152                                         gtk_text_buffer_get_start_iter (buffer, &start_iter);
 153                                         gtk_text_buffer_get_end_iter (buffer, &end_iter);
 154                                         text = gtk_text_buffer_get_text (buffer, &start_iter, &end_iter, FALSE);
 155
 156                                         modest_text_utils_address_range_at_position (text,
 157                                                                                      index,
 158                                                                                      &selection_start, &selection_end);
 159                                         /* TODO: now gtk label tries to select more than the label as usual,
 160                                          *  and we force it to recover the selected region for the defined area.
 161                                          *  It should be fixed (maybe preventing gtklabel to manage selections
 162                                          *  in parallel with us
 163                                          */
 164                                         gtk_text_buffer_get_iter_at_offset (buffer, &start_iter, selection_start);
 165                                         gtk_text_buffer_get_iter_at_offset (buffer, &end_iter, selection_end);
 166                                         gtk_text_buffer_select_range (buffer, &start_iter, &end_iter);
 167
 168                                         if (text)
 169                                                 g_free (text);
 170
 171                                 }
 172
 173                                 if (selected) {
 174                                         gchar *selection;
 175
 176                                         gtk_text_buffer_get_selection_bounds (buffer, &start_iter, &end_iter);
 177                                         selection = gtk_text_buffer_get_text (buffer, &start_iter, &end_iter, FALSE);
 178                                         g_signal_emit (G_OBJECT (user_data), signals[ACTIVATE_SIGNAL], 0, selection);
 179                                         g_free (selection);
 180                                 }
 181
 182                         }
 183                         return TRUE;
 184                 }
 185         }
 186         priv->button_pressed = FALSE;
 187         return TRUE;
 188 }
 189
 190 static void
 191 modest_recpt_view_instance_init (GTypeInstance *instance, gpointer g_class)
 192 {
 193         const GtkTextView *text_view = NULL;
 194
 195         text_view = GTK_TEXT_VIEW(modest_scroll_text_get_text_view (MODEST_SCROLL_TEXT (instance)));
 196
 197         g_signal_connect (G_OBJECT (text_view), "button-press-event", G_CALLBACK (button_press_event), instance);
 198         g_signal_connect (G_OBJECT (text_view), "button-release-event", G_CALLBACK (button_release_event), instance);
 199
 200         return;
 201 }
 202
 203 static void
 204 modest_recpt_view_finalize (GObject *object)
 205 {
 206         (*parent_class->finalize) (object);
 207
 208         return;
 209 }
 210
 211 static void
 212 modest_recpt_view_class_init (ModestRecptViewClass *klass)
 213 {
 214         GObjectClass *object_class;
 215         GtkWidgetClass *widget_class;
 216
 217         parent_class = g_type_class_peek_parent (klass);
 218         object_class = (GObjectClass*) klass;
 219         widget_class = GTK_WIDGET_CLASS (klass);
 220
 221         object_class->finalize = modest_recpt_view_finalize;
 222
 223         klass->activate = NULL;
 224
 225         g_type_class_add_private (object_class, sizeof (ModestRecptViewPriv));
 226
 227         signals[ACTIVATE_SIGNAL] =
 228                 g_signal_new ("activate",
 229                               G_TYPE_FROM_CLASS (object_class),
 230                               G_SIGNAL_RUN_FIRST | G_SIGNAL_ACTION,
 231                               G_STRUCT_OFFSET(ModestRecptViewClass, activate),
 232                               NULL, NULL,
 233                               g_cclosure_marshal_VOID__STRING,
 234                               G_TYPE_NONE, 1, G_TYPE_STRING);
 235
 236         return;
 237 }
 238
 239 GType
 240 modest_recpt_view_get_type (void)
 241 {
 242         static GType type = 0;
 243
 244         if (G_UNLIKELY(type == 0))
 245         {
 246                 static const GTypeInfo info =
 247                 {
 248                   sizeof (ModestRecptViewClass),
 249                   NULL,   /* base_init */
 250                   NULL,   /* base_finalize */
 251                   (GClassInitFunc) modest_recpt_view_class_init,   /* class_init */
 252                   NULL,   /* class_finalize */
 253                   NULL,   /* class_data */
 254                   sizeof (ModestRecptView),
 255                   0,      /* n_preallocs */
 256                   modest_recpt_view_instance_init    /* instance_init */
 257                 };
 258
 259                 type = g_type_register_static (MODEST_TYPE_SCROLL_TEXT,
 260                         "ModestRecptView",
 261                         &info, 0);
 262
 263         }
 264
 265         return type;
 266 }