LCOV - code coverage report
Current view: directory - accessible/src/atk - nsMaiHyperlink.cpp (source / functions) Found Hit Coverage
Test: app.info Lines: 86 0 0.0 %
Date: 2012-06-02 Functions: 14 0 0.0 %

       1                 : /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
       2                 : /* vim: set ts=2 et sw=2 tw=80: */
       3                 : /* ***** BEGIN LICENSE BLOCK *****
       4                 :  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
       5                 :  *
       6                 :  * The contents of this file are subject to the Mozilla Public License Version
       7                 :  * 1.1 (the "License"); you may not use this file except in compliance with
       8                 :  * the License. You may obtain a copy of the License at
       9                 :  * http://www.mozilla.org/MPL/
      10                 :  *
      11                 :  * Software distributed under the License is distributed on an "AS IS" basis,
      12                 :  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
      13                 :  * for the specific language governing rights and limitations under the
      14                 :  * License.
      15                 :  *
      16                 :  * The Original Code is mozilla.org code.
      17                 :  *
      18                 :  * The Initial Developer of the Original Code is
      19                 :  * Sun Microsystems, Inc.
      20                 :  * Portions created by the Initial Developer are Copyright (C) 2002
      21                 :  * the Initial Developer. All Rights Reserved.
      22                 :  *
      23                 :  * Contributor(s):
      24                 :  *   Bolian Yin (bolian.yin@sun.com)
      25                 :  *
      26                 :  * Alternatively, the contents of this file may be used under the terms of
      27                 :  * either the GNU General Public License Version 2 or later (the "GPL"), or
      28                 :  * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
      29                 :  * in which case the provisions of the GPL or the LGPL are applicable instead
      30                 :  * of those above. If you wish to allow use of your version of this file only
      31                 :  * under the terms of either the GPL or the LGPL, and not to allow others to
      32                 :  * use your version of this file under the terms of the MPL, indicate your
      33                 :  * decision by deleting the provisions above and replace them with the notice
      34                 :  * and other provisions required by the GPL or the LGPL. If you do not delete
      35                 :  * the provisions above, a recipient may use your version of this file under
      36                 :  * the terms of any one of the MPL, the GPL or the LGPL.
      37                 :  *
      38                 :  * ***** END LICENSE BLOCK ***** */
      39                 : 
      40                 : #include "nsIURI.h"
      41                 : #include "nsMaiHyperlink.h"
      42                 : 
      43                 : /* MaiAtkHyperlink */
      44                 : 
      45                 : #define MAI_TYPE_ATK_HYPERLINK      (mai_atk_hyperlink_get_type ())
      46                 : #define MAI_ATK_HYPERLINK(obj)      (G_TYPE_CHECK_INSTANCE_CAST ((obj),\
      47                 :                                      MAI_TYPE_ATK_HYPERLINK, MaiAtkHyperlink))
      48                 : #define MAI_ATK_HYPERLINK_CLASS(klass)  (G_TYPE_CHECK_CLASS_CAST ((klass),\
      49                 :                                  MAI_TYPE_ATK_HYPERLINK, MaiAtkHyperlinkClass))
      50                 : #define MAI_IS_ATK_HYPERLINK(obj)      (G_TYPE_CHECK_INSTANCE_TYPE ((obj),\
      51                 :                                         MAI_TYPE_ATK_HYPERLINK))
      52                 : #define MAI_IS_ATK_HYPERLINK_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass),\
      53                 :                                         MAI_TYPE_ATK_HYPERLINK))
      54                 : #define MAI_ATK_HYPERLINK_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj),\
      55                 :                                  MAI_TYPE_ATK_HYPERLINK, MaiAtkHyperlinkClass))
      56                 : 
      57                 : /**
      58                 :  * This MaiAtkHyperlink is a thin wrapper, in the MAI namespace,
      59                 :  * for AtkHyperlink
      60                 :  */
      61                 : 
      62                 : struct MaiAtkHyperlink
      63                 : {
      64                 :     AtkHyperlink parent;
      65                 : 
      66                 :     /*
      67                 :      * The MaiHyperlink whose properties and features are exported via this
      68                 :      * hyperlink instance.
      69                 :      */
      70                 :     MaiHyperlink *maiHyperlink;
      71                 : };
      72                 : 
      73                 : struct MaiAtkHyperlinkClass
      74                 : {
      75                 :     AtkHyperlinkClass parent_class;
      76                 : };
      77                 : 
      78                 : GType mai_atk_hyperlink_get_type(void);
      79                 : 
      80                 : G_BEGIN_DECLS
      81                 : /* callbacks for AtkHyperlink */
      82                 : static void classInitCB(AtkHyperlinkClass *aClass);
      83                 : static void finalizeCB(GObject *aObj);
      84                 : 
      85                 : /* callbacks for AtkHyperlink virtual functions */
      86                 : static gchar *getUriCB(AtkHyperlink *aLink, gint aLinkIndex);
      87                 : static AtkObject *getObjectCB(AtkHyperlink *aLink, gint aLinkIndex);
      88                 : static gint getEndIndexCB(AtkHyperlink *aLink);
      89                 : static gint getStartIndexCB(AtkHyperlink *aLink);
      90                 : static gboolean isValidCB(AtkHyperlink *aLink);
      91                 : static gint getAnchorCountCB(AtkHyperlink *aLink);
      92                 : G_END_DECLS
      93                 : 
      94                 : static gpointer parent_class = NULL;
      95                 : static nsAccessible*
      96                 : get_accessible_hyperlink(AtkHyperlink *aHyperlink);
      97                 : 
      98                 : GType
      99               0 : mai_atk_hyperlink_get_type(void)
     100                 : {
     101                 :     static GType type = 0;
     102                 : 
     103               0 :     if (!type) {
     104                 :         static const GTypeInfo tinfo = {
     105                 :             sizeof(MaiAtkHyperlinkClass),
     106                 :             (GBaseInitFunc)NULL,
     107                 :             (GBaseFinalizeFunc)NULL,
     108                 :             (GClassInitFunc)classInitCB,
     109                 :             (GClassFinalizeFunc)NULL,
     110                 :             NULL, /* class data */
     111                 :             sizeof(MaiAtkHyperlink), /* instance size */
     112                 :             0, /* nb preallocs */
     113                 :             (GInstanceInitFunc)NULL,
     114                 :             NULL /* value table */
     115                 :         };
     116                 : 
     117                 :         type = g_type_register_static(ATK_TYPE_HYPERLINK,
     118                 :                                       "MaiAtkHyperlink",
     119               0 :                                       &tinfo, GTypeFlags(0));
     120                 :     }
     121               0 :     return type;
     122                 : }
     123                 : 
     124               0 : MaiHyperlink::MaiHyperlink(nsAccessible* aHyperLink) :
     125                 :     mHyperlink(aHyperLink),
     126               0 :     mMaiAtkHyperlink(nsnull)
     127                 : {
     128               0 : }
     129                 : 
     130               0 : MaiHyperlink::~MaiHyperlink()
     131                 : {
     132               0 :     if (mMaiAtkHyperlink) {
     133               0 :         MAI_ATK_HYPERLINK(mMaiAtkHyperlink)->maiHyperlink = nsnull;
     134               0 :         g_object_unref(mMaiAtkHyperlink);
     135                 :     }
     136               0 : }
     137                 : 
     138                 : AtkHyperlink*
     139               0 : MaiHyperlink::GetAtkHyperlink(void)
     140                 : {
     141               0 :   NS_ENSURE_TRUE(mHyperlink, nsnull);
     142                 : 
     143               0 :   if (mMaiAtkHyperlink)
     144               0 :     return mMaiAtkHyperlink;
     145                 : 
     146               0 :   if (!mHyperlink->IsLink())
     147               0 :     return nsnull;
     148                 : 
     149                 :     mMaiAtkHyperlink =
     150                 :         reinterpret_cast<AtkHyperlink *>
     151               0 :                         (g_object_new(mai_atk_hyperlink_get_type(), NULL));
     152               0 :     NS_ASSERTION(mMaiAtkHyperlink, "OUT OF MEMORY");
     153               0 :     NS_ENSURE_TRUE(mMaiAtkHyperlink, nsnull);
     154                 : 
     155                 :     /* be sure to initialize it with "this" */
     156               0 :     MaiHyperlink::Initialize(mMaiAtkHyperlink, this);
     157                 : 
     158               0 :     return mMaiAtkHyperlink;
     159                 : }
     160                 : 
     161                 : /* static */
     162                 : 
     163                 : /* remember to call this static function when a MaiAtkHyperlink
     164                 :  * is created
     165                 :  */
     166                 : 
     167                 : nsresult
     168               0 : MaiHyperlink::Initialize(AtkHyperlink *aObj, MaiHyperlink *aHyperlink)
     169                 : {
     170               0 :     NS_ENSURE_ARG(MAI_IS_ATK_HYPERLINK(aObj));
     171               0 :     NS_ENSURE_ARG(aHyperlink);
     172                 : 
     173                 :     /* initialize hyperlink */
     174               0 :     MAI_ATK_HYPERLINK(aObj)->maiHyperlink = aHyperlink;
     175               0 :     return NS_OK;
     176                 : }
     177                 : 
     178                 : /* static functions for ATK callbacks */
     179                 : 
     180                 : void
     181               0 : classInitCB(AtkHyperlinkClass *aClass)
     182                 : {
     183               0 :     GObjectClass *gobject_class = G_OBJECT_CLASS(aClass);
     184                 : 
     185               0 :     parent_class = g_type_class_peek_parent(aClass);
     186                 : 
     187               0 :     aClass->get_uri = getUriCB;
     188               0 :     aClass->get_object = getObjectCB;
     189               0 :     aClass->get_end_index = getEndIndexCB;
     190               0 :     aClass->get_start_index = getStartIndexCB;
     191               0 :     aClass->is_valid = isValidCB;
     192               0 :     aClass->get_n_anchors = getAnchorCountCB;
     193                 : 
     194               0 :     gobject_class->finalize = finalizeCB;
     195               0 : }
     196                 : 
     197                 : void
     198               0 : finalizeCB(GObject *aObj)
     199                 : {
     200               0 :     NS_ASSERTION(MAI_IS_ATK_HYPERLINK(aObj), "Invalid MaiAtkHyperlink");
     201               0 :     if (!MAI_IS_ATK_HYPERLINK(aObj))
     202               0 :         return;
     203                 : 
     204               0 :     MaiAtkHyperlink *maiAtkHyperlink = MAI_ATK_HYPERLINK(aObj);
     205               0 :     maiAtkHyperlink->maiHyperlink = nsnull;
     206                 : 
     207                 :     /* call parent finalize function */
     208               0 :     if (G_OBJECT_CLASS (parent_class)->finalize)
     209               0 :         G_OBJECT_CLASS (parent_class)->finalize(aObj);
     210                 : }
     211                 : 
     212                 : gchar *
     213               0 : getUriCB(AtkHyperlink *aLink, gint aLinkIndex)
     214                 : {
     215               0 :     nsAccessible* hyperlink = get_accessible_hyperlink(aLink);
     216               0 :     NS_ENSURE_TRUE(hyperlink, nsnull);
     217                 : 
     218               0 :     nsCOMPtr<nsIURI> uri = hyperlink->AnchorURIAt(aLinkIndex);
     219               0 :     if (!uri)
     220               0 :         return nsnull;
     221                 : 
     222               0 :     nsCAutoString cautoStr;
     223               0 :     nsresult rv = uri->GetSpec(cautoStr);
     224               0 :     NS_ENSURE_SUCCESS(rv, nsnull);
     225                 : 
     226               0 :     return g_strdup(cautoStr.get());
     227                 : }
     228                 : 
     229                 : AtkObject *
     230               0 : getObjectCB(AtkHyperlink *aLink, gint aLinkIndex)
     231                 : {
     232               0 :     nsAccessible* hyperlink = get_accessible_hyperlink(aLink);
     233               0 :     NS_ENSURE_TRUE(hyperlink, nsnull);
     234                 : 
     235               0 :     nsAccessible* anchor = hyperlink->AnchorAt(aLinkIndex);
     236               0 :     NS_ENSURE_TRUE(anchor, nsnull);
     237                 : 
     238               0 :     AtkObject *atkObj = nsAccessibleWrap::GetAtkObject(anchor);
     239                 :     //no need to add ref it, because it is "get" not "ref"
     240               0 :     return atkObj;
     241                 : }
     242                 : 
     243                 : gint
     244               0 : getEndIndexCB(AtkHyperlink *aLink)
     245                 : {
     246               0 :     nsAccessible* hyperlink = get_accessible_hyperlink(aLink);
     247               0 :     NS_ENSURE_TRUE(hyperlink, -1);
     248                 : 
     249               0 :     return static_cast<gint>(hyperlink->EndOffset());
     250                 : }
     251                 : 
     252                 : gint
     253               0 : getStartIndexCB(AtkHyperlink *aLink)
     254                 : {
     255               0 :     nsAccessible* hyperlink = get_accessible_hyperlink(aLink);
     256               0 :     NS_ENSURE_TRUE(hyperlink, -1);
     257                 : 
     258               0 :     return static_cast<gint>(hyperlink->StartOffset());
     259                 : }
     260                 : 
     261                 : gboolean
     262               0 : isValidCB(AtkHyperlink *aLink)
     263                 : {
     264               0 :     nsAccessible* hyperlink = get_accessible_hyperlink(aLink);
     265               0 :     NS_ENSURE_TRUE(hyperlink, FALSE);
     266                 : 
     267               0 :     return static_cast<gboolean>(hyperlink->IsLinkValid());
     268                 : }
     269                 : 
     270                 : gint
     271               0 : getAnchorCountCB(AtkHyperlink *aLink)
     272                 : {
     273               0 :     nsAccessible* hyperlink = get_accessible_hyperlink(aLink);
     274               0 :     NS_ENSURE_TRUE(hyperlink, -1);
     275                 : 
     276               0 :     return static_cast<gint>(hyperlink->AnchorCount());
     277                 : }
     278                 : 
     279                 : // Check if aHyperlink is a valid MaiHyperlink, and return the
     280                 : // HyperLinkAccessible related.
     281                 : nsAccessible*
     282               0 : get_accessible_hyperlink(AtkHyperlink *aHyperlink)
     283                 : {
     284               0 :     NS_ENSURE_TRUE(MAI_IS_ATK_HYPERLINK(aHyperlink), nsnull);
     285                 :     MaiHyperlink * maiHyperlink =
     286               0 :         MAI_ATK_HYPERLINK(aHyperlink)->maiHyperlink;
     287               0 :     NS_ENSURE_TRUE(maiHyperlink != nsnull, nsnull);
     288               0 :     NS_ENSURE_TRUE(maiHyperlink->GetAtkHyperlink() == aHyperlink, nsnull);
     289               0 :     return maiHyperlink->GetAccHyperlink();
     290                 : }

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