git.maemo.org Git - modest/blob - src/hildon2/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         hildon_gtk_im_context_filter_event (GTK_TEXT_VIEW (widget)->im_context, (GdkEvent*)event)) {
  66         GTK_TEXT_VIEW (widget)->need_im_reset = TRUE;
  67         return TRUE;
  68     }
  69
  70     if (event->button == 1 && event->type == GDK_BUTTON_PRESS) {
  71         priv->x = event->x;
  72         priv->y = event->y;
  73
  74         return TRUE;
  75     }
  76
  77     return FALSE;
  78 }
  79
  80 static gint
  81 modest_wp_text_view_button_release_event (GtkWidget        *widget,
  82                                           GdkEventButton   *event)
  83 {
  84     GtkTextView *text_view = GTK_TEXT_VIEW (widget);
  85     ModestWpTextViewPrivate *priv = MODEST_WP_TEXT_VIEW_GET_PRIVATE (widget);
  86     GtkTextIter iter;
  87     gint x, y;
  88
  89     if (text_view->editable &&
  90         hildon_gtk_im_context_filter_event (text_view->im_context, (GdkEvent*)event)) {
  91         text_view->need_im_reset = TRUE;
  92         return TRUE;
  93     }
  94
  95     if (event->button == 1 && event->type == GDK_BUTTON_RELEASE) {
  96         if (fabs (priv->x - event->x) < MODEST_WP_TEXT_VIEW_DRAG_THRESHOLD &&
  97             fabs (priv->y - event->y) < MODEST_WP_TEXT_VIEW_DRAG_THRESHOLD) {
  98             GtkTextWindowType window_type;
  99             GtkTextBuffer *buffer;
 100
 101             window_type = gtk_text_view_get_window_type (text_view, event->window);
 102             gtk_text_view_window_to_buffer_coords (text_view,
 103                                                    window_type,
 104                                                    event->x, event->y,
 105                                                    &x, &y);
 106             gtk_text_view_get_iter_at_location (text_view, &iter, x, y);
 107             buffer = gtk_text_view_get_buffer (text_view);
 108             if (gtk_text_buffer_get_char_count (buffer))
 109                 gtk_text_buffer_place_cursor (buffer, &iter);
 110
 111             gtk_widget_grab_focus (GTK_WIDGET (text_view));
 112
 113             return TRUE;
 114         }
 115     }
 116     return FALSE;
 117 }
 118
 119 static void
 120 modest_wp_text_view_finalize                       (GObject *object)
 121 {
 122     if (G_OBJECT_CLASS (modest_wp_text_view_parent_class)->finalize)
 123         G_OBJECT_CLASS (modest_wp_text_view_parent_class)->finalize (object);
 124 }
 125
 126 static void
 127 modest_wp_text_view_class_init                     (ModestWpTextViewClass *klass)
 128 {
 129     GObjectClass *gobject_class = (GObjectClass *)klass;
 130     GtkWidgetClass *widget_class = (GtkWidgetClass *)klass;
 131
 132     gobject_class->finalize = modest_wp_text_view_finalize;
 133     widget_class->motion_notify_event = NULL;
 134     widget_class->button_press_event = modest_wp_text_view_button_press_event;
 135     widget_class->button_release_event = modest_wp_text_view_button_release_event;
 136
 137     g_type_class_add_private (klass, sizeof (ModestWpTextViewPrivate));
 138 }
 139
 140 static void
 141 modest_wp_text_view_init                           (ModestWpTextView *self)
 142 {
 143 }