1 | /* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */ |
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2 | /* |
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3 | * Copyright (C) 2001-2002 Mikael Hallendal <micke@codefactory.se> |
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4 | * |
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5 | * This program is free software; you can redistribute it and/or |
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6 | * modify it under the terms of the GNU General Public License as |
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7 | * published by the Free Software Foundation; either version 2 of the |
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8 | * License, or (at your option) any later version. |
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9 | * |
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10 | * This program is distributed in the hope that it will be useful, |
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11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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13 | * General Public License for more details. |
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14 | * |
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15 | * You should have received a copy of the GNU General Public |
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16 | * License along with this program; if not, write to the |
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17 | * Free Software Foundation, Inc., 59 Temple Place - Suite 330, |
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18 | * Boston, MA 02111-1307, USA. |
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19 | * |
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20 | * Author: Mikael Hallendal <micke@codefactory.se> |
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21 | */ |
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22 | |
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23 | #ifdef HAVE_CONFIG_H |
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24 | #include <config.h> |
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25 | #endif |
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26 | |
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27 | #include <atk/atk.h> |
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28 | #include <gtk/gtkaccessible.h> |
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29 | #include <gtk/gtkcellrenderertext.h> |
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30 | #include <gtk/gtkentry.h> |
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31 | #include <gtk/gtkframe.h> |
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32 | #include <gtk/gtkhbox.h> |
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33 | #include <gtk/gtkvbox.h> |
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34 | #include <gtk/gtklabel.h> |
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35 | #include <gtk/gtkscrolledwindow.h> |
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36 | #include <gtk/gtktreeview.h> |
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37 | #include <gtk/gtktreeselection.h> |
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38 | #include <libgnome/gnome-i18n.h> |
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39 | #include <string.h> |
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40 | |
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41 | #include "yelp-index-model.h" |
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42 | #include "yelp-html.h" |
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43 | #include "yelp-marshal.h" |
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44 | #include "yelp-reader.h" |
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45 | #include "yelp-view-index.h" |
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46 | |
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47 | #define d(x) |
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48 | |
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49 | static void yvi_init (YelpViewIndex *view); |
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50 | static void yvi_class_init (YelpViewIndexClass *klass); |
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51 | static void yvi_index_selection_changed_cb (GtkTreeSelection *selection, |
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52 | YelpViewIndex *content); |
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53 | static void yvi_html_uri_selected_cb (YelpHtml *html, |
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54 | YelpURI *uri, |
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55 | gboolean handled, |
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56 | YelpViewIndex *view); |
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57 | static void yvi_entry_changed_cb (GtkEntry *entry, |
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58 | YelpViewIndex *view); |
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59 | static void yvi_entry_activated_cb (GtkEntry *entry, |
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60 | YelpViewIndex *view); |
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61 | static void yvi_entry_text_inserted_cb (GtkEntry *entry, |
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62 | const gchar *text, |
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63 | gint length, |
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64 | gint *position, |
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65 | YelpViewIndex *view); |
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66 | static gboolean yvi_complete_idle (YelpViewIndex *view); |
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67 | static gboolean yvi_filter_idle (YelpViewIndex *view); |
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68 | static gchar * yvi_complete_func (YelpSection *section); |
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69 | static void set_relation (GtkWidget *widget, |
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70 | GtkLabel *label); |
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71 | static void yvi_reader_data_cb (YelpReader *reader, |
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72 | const gchar *data, |
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73 | gint len, |
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74 | YelpViewIndex *view); |
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75 | static void yvi_reader_finished_cb (YelpReader *reader, |
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76 | YelpURI *uri, |
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77 | YelpViewIndex *view); |
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78 | |
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79 | |
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80 | struct _YelpViewIndexPriv { |
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81 | /* List of keywords */ |
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82 | GtkWidget *index_view; |
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83 | YelpIndexModel *model; |
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84 | |
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85 | /* Query entry */ |
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86 | GtkWidget *entry; |
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87 | |
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88 | YelpReader *reader; |
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89 | |
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90 | /* Html view */ |
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91 | YelpHtml *html_view; |
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92 | GtkWidget *html_widget; |
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93 | |
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94 | GCompletion *completion; |
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95 | |
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96 | guint idle_complete; |
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97 | guint idle_filter; |
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98 | |
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99 | gboolean first; |
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100 | }; |
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101 | |
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102 | enum { |
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103 | URI_SELECTED, |
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104 | LAST_SIGNAL |
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105 | }; |
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106 | |
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107 | static gint signals[LAST_SIGNAL] = { 0 }; |
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108 | |
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109 | GType |
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110 | yelp_view_index_get_type (void) |
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111 | { |
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112 | static GType view_type = 0; |
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113 | |
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114 | if (!view_type) |
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115 | { |
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116 | static const GTypeInfo view_info = |
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117 | { |
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118 | sizeof (YelpViewIndexClass), |
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119 | NULL, |
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120 | NULL, |
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121 | (GClassInitFunc) yvi_class_init, |
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122 | NULL, |
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123 | NULL, |
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124 | sizeof (YelpViewIndex), |
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125 | 0, |
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126 | (GInstanceInitFunc) yvi_init, |
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127 | }; |
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128 | |
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129 | view_type = g_type_register_static (GTK_TYPE_HPANED, |
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130 | "YelpViewIndex", |
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131 | &view_info, 0); |
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132 | } |
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133 | |
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134 | return view_type; |
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135 | } |
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136 | |
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137 | static void |
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138 | yvi_init (YelpViewIndex *view) |
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139 | { |
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140 | YelpViewIndexPriv *priv; |
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141 | |
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142 | priv = g_new0 (YelpViewIndexPriv, 1); |
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143 | view->priv = priv; |
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144 | |
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145 | priv->idle_complete = 0; |
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146 | priv->idle_filter = 0; |
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147 | |
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148 | priv->completion = |
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149 | g_completion_new ((GCompletionFunc) yvi_complete_func); |
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150 | |
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151 | priv->index_view = gtk_tree_view_new (); |
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152 | priv->model = yelp_index_model_new (); |
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153 | |
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154 | gtk_tree_view_set_model (GTK_TREE_VIEW (priv->index_view), |
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155 | GTK_TREE_MODEL (priv->model)); |
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156 | |
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157 | priv->html_view = yelp_html_new (); |
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158 | priv->html_widget = yelp_html_get_widget (priv->html_view); |
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159 | |
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160 | g_signal_connect (priv->html_view, "uri_selected", |
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161 | G_CALLBACK (yvi_html_uri_selected_cb), |
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162 | view); |
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163 | |
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164 | priv->reader = yelp_reader_new (); |
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165 | |
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166 | g_signal_connect (G_OBJECT (priv->reader), "data", |
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167 | G_CALLBACK (yvi_reader_data_cb), |
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168 | view); |
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169 | g_signal_connect (G_OBJECT (priv->reader), "finished", |
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170 | G_CALLBACK (yvi_reader_finished_cb), |
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171 | view); |
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172 | } |
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173 | |
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174 | static void |
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175 | yvi_class_init (YelpViewIndexClass *klass) |
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176 | { |
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177 | signals[URI_SELECTED] = |
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178 | g_signal_new ("uri_selected", |
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179 | G_TYPE_FROM_CLASS (klass), |
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180 | G_SIGNAL_RUN_LAST, |
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181 | G_STRUCT_OFFSET (YelpViewIndexClass, |
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182 | uri_selected), |
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183 | NULL, NULL, |
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184 | yelp_marshal_VOID__POINTER_BOOLEAN, |
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185 | G_TYPE_NONE, |
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186 | 2, G_TYPE_POINTER, G_TYPE_BOOLEAN); |
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187 | } |
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188 | |
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189 | static void |
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190 | yvi_index_selection_changed_cb (GtkTreeSelection *selection, |
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191 | YelpViewIndex *view) |
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192 | { |
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193 | YelpViewIndexPriv *priv; |
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194 | GtkTreeIter iter; |
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195 | YelpSection *section; |
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196 | |
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197 | g_return_if_fail (GTK_IS_TREE_SELECTION (selection)); |
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198 | g_return_if_fail (YELP_IS_VIEW_INDEX (view)); |
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199 | |
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200 | priv = view->priv; |
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201 | |
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202 | if (gtk_tree_selection_get_selected (selection, NULL, &iter)) { |
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203 | YelpURI *index_uri; |
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204 | |
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205 | gtk_tree_model_get (GTK_TREE_MODEL (priv->model), &iter, |
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206 | YELP_INDEX_MODEL_COL_SECTION, §ion, |
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207 | -1); |
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208 | |
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209 | d(g_print ("Index View: selection changed: %s\n", |
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210 | yelp_uri_to_string (section->uri))); |
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211 | |
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212 | index_uri = yelp_uri_to_index (section->uri); |
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213 | |
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214 | g_signal_emit (view, signals[URI_SELECTED], 0, |
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215 | index_uri, FALSE); |
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216 | |
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217 | yelp_uri_unref (index_uri); |
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218 | } |
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219 | } |
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220 | |
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221 | static void |
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222 | yvi_html_uri_selected_cb (YelpHtml *html, |
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223 | YelpURI *uri, |
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224 | gboolean handled, |
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225 | YelpViewIndex *view) |
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226 | { |
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227 | YelpURI *index_uri; |
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228 | |
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229 | g_return_if_fail (YELP_IS_VIEW_INDEX (view)); |
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230 | |
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231 | d(g_print ("Index View: uri selected: %s\n", |
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232 | yelp_uri_to_string (uri))); |
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233 | |
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234 | index_uri = yelp_uri_to_index (uri); |
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235 | g_signal_emit (view, signals[URI_SELECTED], 0, index_uri, handled); |
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236 | yelp_uri_unref (index_uri); |
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237 | } |
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238 | |
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239 | static void |
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240 | yvi_entry_changed_cb (GtkEntry *entry, YelpViewIndex *view) |
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241 | { |
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242 | YelpViewIndexPriv *priv; |
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243 | |
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244 | g_return_if_fail (GTK_IS_ENTRY (entry)); |
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245 | g_return_if_fail (YELP_IS_VIEW_INDEX (view)); |
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246 | |
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247 | priv = view->priv; |
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248 | |
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249 | d(g_print ("Entry changed\n")); |
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250 | |
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251 | if (!priv->idle_filter) { |
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252 | priv->idle_filter = |
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253 | g_idle_add ((GSourceFunc) yvi_filter_idle, view); |
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254 | } |
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255 | } |
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256 | |
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257 | static void |
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258 | yvi_entry_activated_cb (GtkEntry *entry, YelpViewIndex *view) |
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259 | { |
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260 | YelpViewIndexPriv *priv; |
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261 | gchar *str; |
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262 | |
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263 | g_return_if_fail (GTK_IS_ENTRY (entry)); |
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264 | g_return_if_fail (YELP_IS_VIEW_INDEX (view)); |
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265 | |
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266 | priv = view->priv; |
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267 | |
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268 | str = (gchar *) gtk_entry_get_text (GTK_ENTRY (priv->entry)); |
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269 | |
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270 | yelp_index_model_filter (view->priv->model, str); |
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271 | } |
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272 | |
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273 | static void |
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274 | yvi_entry_text_inserted_cb (GtkEntry *entry, |
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275 | const gchar *text, |
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276 | gint length, |
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277 | gint *position, |
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278 | YelpViewIndex *view) |
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279 | { |
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280 | YelpViewIndexPriv *priv; |
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281 | |
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282 | g_return_if_fail (YELP_IS_VIEW_INDEX (view)); |
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283 | |
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284 | priv = view->priv; |
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285 | |
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286 | if (!priv->idle_complete) { |
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287 | priv->idle_complete = |
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288 | g_idle_add ((GSourceFunc) yvi_complete_idle, view); |
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289 | } |
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290 | } |
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291 | |
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292 | static gboolean |
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293 | yvi_complete_idle (YelpViewIndex *view) |
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294 | { |
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295 | YelpViewIndexPriv *priv; |
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296 | const gchar *text; |
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297 | gchar *completed = NULL; |
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298 | GList *list; |
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299 | gint text_length; |
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300 | |
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301 | g_return_val_if_fail (YELP_IS_VIEW_INDEX (view), FALSE); |
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302 | |
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303 | priv = view->priv; |
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304 | |
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305 | text = gtk_entry_get_text (GTK_ENTRY (priv->entry)); |
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306 | |
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307 | list = g_completion_complete (priv->completion, |
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308 | (gchar *)text, |
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309 | &completed); |
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310 | |
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311 | if (completed) { |
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312 | text_length = strlen (text); |
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313 | |
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314 | gtk_entry_set_text (GTK_ENTRY (priv->entry), completed); |
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315 | gtk_editable_set_position (GTK_EDITABLE (priv->entry), |
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316 | text_length); |
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317 | gtk_editable_select_region (GTK_EDITABLE (priv->entry), |
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318 | text_length, -1); |
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319 | } |
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320 | |
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321 | priv->idle_complete = 0; |
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322 | |
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323 | return FALSE; |
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324 | } |
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325 | |
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326 | static gboolean |
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327 | yvi_filter_idle (YelpViewIndex *view) |
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328 | { |
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329 | YelpViewIndexPriv *priv; |
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330 | gchar *str; |
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331 | |
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332 | g_return_val_if_fail (YELP_IS_VIEW_INDEX (view), FALSE); |
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333 | |
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334 | priv = view->priv; |
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335 | |
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336 | d(g_print ("Filter idle\n")); |
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337 | |
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338 | str = (gchar *) gtk_entry_get_text (GTK_ENTRY (priv->entry)); |
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339 | |
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340 | yelp_index_model_filter (view->priv->model, str); |
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341 | |
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342 | priv->idle_filter = 0; |
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343 | |
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344 | return FALSE; |
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345 | } |
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346 | |
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347 | static gchar * |
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348 | yvi_complete_func (YelpSection *section) |
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349 | { |
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350 | return section->name; |
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351 | } |
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352 | |
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353 | /** |
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354 | * set_relation |
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355 | * @widget : The Gtk widget which is labelled by @label |
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356 | * @label : The label for the @widget. |
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357 | * Description : This function establishes atk relation |
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358 | * between a gtk widget and a label. |
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359 | */ |
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360 | |
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361 | static void |
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362 | set_relation (GtkWidget *widget, GtkLabel *label) |
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363 | { |
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364 | AtkObject *aobject; |
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365 | AtkRelationSet *relation_set; |
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366 | AtkRelation *relation; |
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367 | AtkObject *targets[1]; |
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368 | |
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369 | g_return_if_fail (GTK_IS_WIDGET (widget)); |
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370 | g_return_if_fail (GTK_IS_LABEL (label)); |
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371 | |
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372 | aobject = gtk_widget_get_accessible (widget); |
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373 | |
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374 | /* Return if GAIL is not loaded */ |
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375 | if (! GTK_IS_ACCESSIBLE (aobject)) { |
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376 | return; |
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377 | } |
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378 | |
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379 | /* Set the ATK_RELATION_LABEL_FOR relation */ |
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380 | gtk_label_set_mnemonic_widget (label, widget); |
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381 | |
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382 | targets[0] = gtk_widget_get_accessible (GTK_WIDGET (label)); |
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383 | |
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384 | relation_set = atk_object_ref_relation_set (aobject); |
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385 | |
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386 | relation = atk_relation_new (targets, 1, ATK_RELATION_LABELLED_BY); |
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387 | atk_relation_set_add (relation_set, relation); |
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388 | g_object_unref (G_OBJECT (relation)); |
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389 | } |
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390 | |
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391 | static void |
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392 | yvi_reader_data_cb (YelpReader *reader, |
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393 | const gchar *data, |
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394 | gint len, |
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395 | YelpViewIndex *view) |
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396 | { |
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397 | YelpViewIndexPriv *priv; |
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398 | |
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399 | g_return_if_fail (YELP_IS_READER (reader)); |
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400 | g_return_if_fail (YELP_IS_VIEW_INDEX (view)); |
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401 | |
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402 | priv = view->priv; |
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403 | |
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404 | if (priv->first) { |
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405 | yelp_html_clear (priv->html_view); |
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406 | priv->first = FALSE; |
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407 | } |
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408 | |
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409 | if (len == -1) { |
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410 | len = strlen (data); |
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411 | } |
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412 | |
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413 | if (len <= 0) { |
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414 | return; |
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415 | } |
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416 | |
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417 | yelp_html_write (priv->html_view, data, len); |
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418 | } |
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419 | |
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420 | static void |
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421 | yvi_reader_finished_cb (YelpReader *reader, |
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422 | YelpURI *uri, |
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423 | YelpViewIndex *view) |
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424 | { |
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425 | YelpViewIndexPriv *priv; |
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426 | |
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427 | g_return_if_fail (YELP_IS_READER (reader)); |
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428 | g_return_if_fail (YELP_IS_VIEW_INDEX (view)); |
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429 | |
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430 | priv = view->priv; |
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431 | |
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432 | if (!priv->first) { |
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433 | yelp_html_close (priv->html_view); |
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434 | } |
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435 | |
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436 | gdk_window_set_cursor (priv->html_widget->window, NULL); |
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437 | gtk_widget_grab_focus (priv->html_widget); |
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438 | } |
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439 | |
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440 | GtkWidget * |
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441 | yelp_view_index_new (GList *index) |
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442 | { |
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443 | YelpViewIndex *view; |
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444 | YelpViewIndexPriv *priv; |
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445 | GtkTreeSelection *selection; |
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446 | GtkWidget *html_sw; |
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447 | GtkWidget *list_sw; |
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448 | GtkWidget *frame; |
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449 | GtkWidget *box; |
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450 | GtkWidget *hbox; |
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451 | GtkWidget *label; |
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452 | |
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453 | view = g_object_new (YELP_TYPE_VIEW_INDEX, NULL); |
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454 | priv = view->priv; |
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455 | |
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456 | /* Setup the index box */ |
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457 | box = gtk_vbox_new (FALSE, 0); |
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458 | |
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459 | hbox = gtk_hbox_new (FALSE, 0); |
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460 | |
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461 | label = gtk_label_new (_("Search for:")); |
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462 | |
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463 | gtk_box_pack_start (GTK_BOX (hbox), label, FALSE, FALSE, 4); |
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464 | |
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465 | priv->entry = gtk_entry_new (); |
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466 | |
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467 | set_relation (priv->entry, GTK_LABEL (label)); |
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468 | |
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469 | g_signal_connect (priv->entry, "changed", |
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470 | G_CALLBACK (yvi_entry_changed_cb), |
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471 | view); |
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472 | |
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473 | gtk_box_pack_end (GTK_BOX (hbox), priv->entry, FALSE, FALSE, 0); |
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474 | |
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475 | g_signal_connect (priv->entry, "activate", |
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476 | G_CALLBACK (yvi_entry_activated_cb), |
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477 | view); |
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478 | |
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479 | g_signal_connect (priv->entry, "insert-text", |
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480 | G_CALLBACK (yvi_entry_text_inserted_cb), |
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481 | view); |
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482 | |
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483 | gtk_box_pack_start (GTK_BOX (box), hbox, |
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484 | FALSE, FALSE, 0); |
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485 | |
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486 | frame = gtk_frame_new (NULL); |
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487 | gtk_frame_set_shadow_type (GTK_FRAME (frame), GTK_SHADOW_IN); |
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488 | |
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489 | list_sw = gtk_scrolled_window_new (NULL, NULL); |
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490 | gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (list_sw), |
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491 | GTK_POLICY_AUTOMATIC, |
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492 | GTK_POLICY_AUTOMATIC); |
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493 | |
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494 | gtk_container_add (GTK_CONTAINER (frame), list_sw); |
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495 | |
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496 | gtk_tree_view_insert_column_with_attributes ( |
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497 | GTK_TREE_VIEW (priv->index_view), -1, |
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498 | _("Section"), gtk_cell_renderer_text_new (), |
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499 | "text", 0, |
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500 | NULL); |
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501 | |
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502 | gtk_tree_view_set_headers_visible (GTK_TREE_VIEW (priv->index_view), |
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503 | FALSE); |
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504 | |
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505 | selection = gtk_tree_view_get_selection ( |
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506 | GTK_TREE_VIEW (priv->index_view)); |
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507 | |
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508 | g_signal_connect (selection, "changed", |
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509 | G_CALLBACK (yvi_index_selection_changed_cb), |
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510 | view); |
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511 | |
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512 | gtk_container_add (GTK_CONTAINER (list_sw), priv->index_view); |
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513 | |
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514 | gtk_box_pack_end_defaults (GTK_BOX (box), frame); |
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515 | |
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516 | /* Setup the Html view */ |
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517 | html_sw = gtk_scrolled_window_new (NULL, NULL); |
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518 | gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (html_sw), |
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519 | GTK_POLICY_AUTOMATIC, |
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520 | GTK_POLICY_AUTOMATIC); |
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521 | frame = gtk_frame_new (NULL); |
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522 | gtk_container_add (GTK_CONTAINER (frame), html_sw); |
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523 | gtk_frame_set_shadow_type (GTK_FRAME (frame), GTK_SHADOW_IN); |
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524 | |
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525 | gtk_container_add (GTK_CONTAINER (html_sw), priv->html_widget); |
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526 | |
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527 | /* Add the tree and html view to the paned */ |
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528 | gtk_paned_add1 (GTK_PANED (view), box); |
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529 | gtk_paned_add2 (GTK_PANED (view), frame); |
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530 | gtk_paned_set_position (GTK_PANED (view), 250); |
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531 | |
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532 | d(g_print ("List length: %d\n", g_list_length (index))); |
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533 | |
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534 | g_completion_add_items (priv->completion, index); |
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535 | yelp_index_model_set_words (priv->model, index); |
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536 | |
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537 | return GTK_WIDGET (view); |
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538 | } |
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539 | |
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540 | void |
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541 | yelp_view_index_show_uri (YelpViewIndex *view, |
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542 | YelpURI *index_uri, |
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543 | GError **error) |
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544 | { |
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545 | YelpViewIndexPriv *priv; |
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546 | YelpURI *uri; |
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547 | |
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548 | g_return_if_fail (YELP_IS_VIEW_INDEX (view)); |
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549 | g_return_if_fail (index_uri != NULL); |
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550 | |
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551 | priv = view->priv; |
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552 | |
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553 | d(g_print ("Index show Uri: %s\n", yelp_uri_to_string (index_uri))); |
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554 | |
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555 | if (yelp_uri_no_path (index_uri)) { |
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556 | return; |
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557 | } |
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558 | |
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559 | uri = yelp_uri_from_index (index_uri); |
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560 | |
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561 | priv->first = TRUE; |
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562 | |
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563 | yelp_html_set_base_uri (priv->html_view, uri); |
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564 | |
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565 | if (!yelp_reader_start (priv->reader, uri)) { |
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566 | gchar *loading = _("Loading..."); |
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567 | |
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568 | yelp_html_clear (priv->html_view); |
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569 | |
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570 | yelp_html_printf (priv->html_view, |
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571 | "<html><meta http-equiv=\"Content-Type\" content=\"text/html; charset=utf-8\"><title>..</title><body><center>%s</center></body></html>", |
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572 | loading); |
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573 | yelp_html_close (priv->html_view); |
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574 | } |
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575 | |
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576 | /* FIXME: Handle the GError */ |
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577 | /* yelp_html_open_uri (priv->html_view, uri, error); */ |
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578 | } |
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579 | |
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