tor-browser

The Tor Browser
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nsMaiInterfaceSelection.cpp (2696B)

      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 /* This Source Code Form is subject to the terms of the Mozilla Public
      4 * License, v. 2.0. If a copy of the MPL was not distributed with this
      5 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
      6 
      7 #include "InterfaceInitFuncs.h"
      8 
      9 #include "LocalAccessible-inl.h"
     10 #include "AccessibleWrap.h"
     11 #include "nsMai.h"
     12 #include "mozilla/Likely.h"
     13 
     14 #include <atk/atkobject.h>
     15 #include <atk/atkselection.h>
     16 
     17 using namespace mozilla::a11y;
     18 
     19 extern "C" {
     20 
     21 static gboolean addSelectionCB(AtkSelection* aSelection, gint i) {
     22  Accessible* acc = GetInternalObj(ATK_OBJECT(aSelection));
     23  if (acc && acc->IsSelect()) {
     24    return acc->AddItemToSelection(i);
     25  }
     26 
     27  return FALSE;
     28 }
     29 
     30 static gboolean clearSelectionCB(AtkSelection* aSelection) {
     31  Accessible* acc = GetInternalObj(ATK_OBJECT(aSelection));
     32  if (acc && acc->IsSelect()) {
     33    return acc->UnselectAll();
     34  }
     35 
     36  return FALSE;
     37 }
     38 
     39 static AtkObject* refSelectionCB(AtkSelection* aSelection, gint i) {
     40  AtkObject* atkObj = nullptr;
     41  Accessible* acc = GetInternalObj(ATK_OBJECT(aSelection));
     42  Accessible* selectedItem = acc->GetSelectedItem(i);
     43  if (selectedItem) {
     44    atkObj = GetWrapperFor(selectedItem);
     45  }
     46 
     47  if (atkObj) {
     48    g_object_ref(atkObj);
     49  }
     50 
     51  return atkObj;
     52 }
     53 
     54 static gint getSelectionCountCB(AtkSelection* aSelection) {
     55  Accessible* acc = GetInternalObj(ATK_OBJECT(aSelection));
     56  if (acc && acc->IsSelect()) {
     57    return acc->SelectedItemCount();
     58  }
     59 
     60  return -1;
     61 }
     62 
     63 static gboolean isChildSelectedCB(AtkSelection* aSelection, gint i) {
     64  Accessible* acc = GetInternalObj(ATK_OBJECT(aSelection));
     65  if (acc && acc->IsSelect()) {
     66    return acc->IsItemSelected(i);
     67  }
     68 
     69  return FALSE;
     70 }
     71 
     72 static gboolean removeSelectionCB(AtkSelection* aSelection, gint i) {
     73  Accessible* acc = GetInternalObj(ATK_OBJECT(aSelection));
     74  if (acc && acc->IsSelect()) {
     75    return acc->RemoveItemFromSelection(i);
     76  }
     77 
     78  return FALSE;
     79 }
     80 
     81 static gboolean selectAllSelectionCB(AtkSelection* aSelection) {
     82  Accessible* acc = GetInternalObj(ATK_OBJECT(aSelection));
     83  if (acc && acc->IsSelect()) {
     84    return acc->SelectAll();
     85  }
     86 
     87  return FALSE;
     88 }
     89 }
     90 
     91 void selectionInterfaceInitCB(AtkSelectionIface* aIface) {
     92  NS_ASSERTION(aIface, "Invalid aIface");
     93  if (MOZ_UNLIKELY(!aIface)) return;
     94 
     95  aIface->add_selection = addSelectionCB;
     96  aIface->clear_selection = clearSelectionCB;
     97  aIface->ref_selection = refSelectionCB;
     98  aIface->get_selection_count = getSelectionCountCB;
     99  aIface->is_child_selected = isChildSelectedCB;
    100  aIface->remove_selection = removeSelectionCB;
    101  aIface->select_all_selection = selectAllSelectionCB;
    102 }