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

   1 /* Copyright (c) 2006, 2008 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
  31 #include                                        "modest-wp-text-view.h"
  32 #include <math.h>
  33
  34 #define MODEST_WP_TEXT_VIEW_DRAG_THRESHOLD 16.0
  35
  36 G_DEFINE_TYPE                                   (ModestWpTextView, modest_wp_text_view, WP_TYPE_TEXT_VIEW);
  37
  38 #define                                         MODEST_WP_TEXT_VIEW_GET_PRIVATE(obj) \
  39                                                 (G_TYPE_INSTANCE_GET_PRIVATE ((obj), \
  40                                                 MODEST_TYPE_WP_TEXT_VIEW, ModestWpTextViewPrivate));
  41
  42 typedef struct                                  _ModestWpTextViewPrivate ModestWpTextViewPrivate;
  43
  44 struct                                          _ModestWpTextViewPrivate
  45 {
  46     gdouble x;                                                      /* tap x position */
  47     gdouble y;                                                      /* tap y position */
  48 };
  49
  50 GtkWidget *
  51 modest_wp_text_view_new                            (void)
  52 {
  53     GtkWidget *entry = g_object_new (MODEST_TYPE_WP_TEXT_VIEW, NULL);
  54
  55     return entry;
  56 }
  57
  58 static gint
  59 modest_wp_text_view_button_press_event (GtkWidget        *widget,
  60                                         GdkEventButton   *event)
  61 {
  62     ModestWpTextViewPrivate *priv = MODEST_WP_TEXT_VIEW_GET_PRIVATE (widget);
  63
  64     if (GTK_TEXT_VIEW (widget)->editable
  65 #ifdef MAEMO_CHANGES
  66         && hildon_gtk_im_context_filter_event (GTK_TEXT_VIEW (widget)->im_context, (GdkEvent*)event)
  67 #endif
  68         ) {
  69         GTK_TEXT_VIEW (widget)->need_im_reset = TRUE;
  70         return TRUE;
  71     }
  72
  73     if (event->button == 1 && event->type == GDK_BUTTON_PRESS) {
  74         priv->x = event->x;
  75         priv->y = event->y;
  76
  77         return TRUE;
  78     }
  79
  80     return FALSE;
  81 }
  82
  83 static gint
  84 modest_wp_text_view_button_release_event (GtkWidget        *widget,
  85                                           GdkEventButton   *event)
  86 {
  87     GtkTextView *text_view = GTK_TEXT_VIEW (widget);
  88     ModestWpTextViewPrivate *priv = MODEST_WP_TEXT_VIEW_GET_PRIVATE (widget);
  89     GtkTextIter iter;
  90     gint x, y;
  91
  92     if (text_view->editable
  93 #ifdef MAEMO_CHANGES
  94         && hildon_gtk_im_context_filter_event (text_view->im_context, (GdkEvent*)event)
  95 #endif
  96         ) {
  97         text_view->need_im_reset = TRUE;
  98         return TRUE;
  99     }
 100
 101     if (event->button == 1 && event->type == GDK_BUTTON_RELEASE) {
 102         if (fabs (priv->x - event->x) < MODEST_WP_TEXT_VIEW_DRAG_THRESHOLD &&
 103             fabs (priv->y - event->y) < MODEST_WP_TEXT_VIEW_DRAG_THRESHOLD) {
 104             GtkTextWindowType window_type;
 105             GtkTextBuffer *buffer;
 106
 107             window_type = gtk_text_view_get_window_type (text_view, event->window);
 108             gtk_text_view_window_to_buffer_coords (text_view,
 109                                                    window_type,
 110                                                    event->x, event->y,
 111                                                    &x, &y);
 112             gtk_text_view_get_iter_at_location (text_view, &iter, x, y);
 113             buffer = gtk_text_view_get_buffer (text_view);
 114             if (gtk_text_buffer_get_char_count (buffer))
 115                 gtk_text_buffer_place_cursor (buffer, &iter);
 116
 117             gtk_widget_grab_focus (GTK_WIDGET (text_view));
 118
 119             return TRUE;
 120         }
 121     }
 122     return FALSE;
 123 }
 124
 125 static void
 126 modest_wp_text_view_finalize                       (GObject *object)
 127 {
 128     if (G_OBJECT_CLASS (modest_wp_text_view_parent_class)->finalize)
 129         G_OBJECT_CLASS (modest_wp_text_view_parent_class)->finalize (object);
 130 }
 131
 132 static void
 133 modest_wp_text_view_class_init                     (ModestWpTextViewClass *klass)
 134 {
 135     GObjectClass *gobject_class = (GObjectClass *)klass;
 136     GtkWidgetClass *widget_class = (GtkWidgetClass *)klass;
 137
 138     gobject_class->finalize = modest_wp_text_view_finalize;
 139     widget_class->motion_notify_event = NULL;
 140     widget_class->button_press_event = modest_wp_text_view_button_press_event;
 141     widget_class->button_release_event = modest_wp_text_view_button_release_event;
 142
 143     g_type_class_add_private (klass, sizeof (ModestWpTextViewPrivate));
 144 }
 145
 146 static void
 147 modest_wp_text_view_init                           (ModestWpTextView *self)
 148 {
 149 }