accessible/src/msaa/nsXULTreeAccessibleWrap.cpp

   1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
   2 /* ***** BEGIN LICENSE BLOCK *****
   3  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
   4  *
   5  * The contents of this file are subject to the Mozilla Public License Version
   6  * 1.1 (the "License"); you may not use this file except in compliance with
   7  * the License. You may obtain a copy of the License at
   8  * http://www.mozilla.org/MPL/
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  10  * Software distributed under the License is distributed on an "AS IS" basis,
  11  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
  12  * for the specific language governing rights and limitations under the
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  15  * The Original Code is mozilla.org code.
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  17  * The Initial Developer of the Original Code is
  18  * Netscape Corp.
  19  * Portions created by the Initial Developer are Copyright (C) 2003
  20  * the Initial Developer. All Rights Reserved.
  21  *
  22  * Contributor(s):
  23  *   Aaron Leventhal
  24  *
  25  * Alternatively, the contents of this file may be used under the terms of
  26  * either the GNU General Public License Version 2 or later (the "GPL"), or
  27  * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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  37  * ***** END LICENSE BLOCK ***** */
  38
  39 #include "nsXULTreeAccessibleWrap.h"
  40 #include "nsTextFormatter.h"
  41 #include "nsIFrame.h"
  42
  43 // --------------------------------------------------------
  44 // nsXULTreeAccessibleWrap
  45 // --------------------------------------------------------
  46
  47 nsXULTreeAccessibleWrap::nsXULTreeAccessibleWrap(nsIDOMNode *aDOMNode, nsIWeakReference *aShell):
  48 nsXULTreeAccessible(aDOMNode, aShell)
  49 {
  50 }
  51
  52 NS_IMETHODIMP nsXULTreeAccessibleWrap::GetRole(PRUint32 *aRole)
  53 {
  54   NS_ENSURE_STATE(mTree);
  55
  56   nsCOMPtr<nsITreeColumns> cols;
  57   mTree->GetColumns(getter_AddRefs(cols));
  58   nsCOMPtr<nsITreeColumn> primaryCol;
  59   if (cols) {
  60     cols->GetPrimaryColumn(getter_AddRefs(primaryCol));
  61   }
  62   // No primary column means we're in a list
  63   // In fact, history and mail turn off the primary flag when switching to a flat view
  64   *aRole = primaryCol ? nsIAccessibleRole::ROLE_OUTLINE :
  65                         nsIAccessibleRole::ROLE_LIST;
  66
  67   return NS_OK;
  68 }
  69
  70 // --------------------------------------------------------
  71 // nsXULTreeitemAccessibleWrap Accessible
  72 // --------------------------------------------------------
  73
  74 nsXULTreeitemAccessibleWrap::nsXULTreeitemAccessibleWrap(nsIAccessible *aParent,
  75                                                          nsIDOMNode *aDOMNode,
  76                                                          nsIWeakReference *aShell,
  77                                                          PRInt32 aRow,
  78                                                          nsITreeColumn* aColumn) :
  79 nsXULTreeitemAccessible(aParent, aDOMNode, aShell, aRow, aColumn)
  80 {
  81 }
  82
  83 NS_IMETHODIMP nsXULTreeitemAccessibleWrap::GetRole(PRUint32 *aRole)
  84 {
  85   // No primary column means we're in a list
  86   // In fact, history and mail turn off the primary flag when switching to a flat view
  87   NS_ENSURE_STATE(mColumn);
  88   PRBool isPrimary = PR_FALSE;
  89   mColumn->GetPrimary(&isPrimary);
  90   *aRole = isPrimary ? nsIAccessibleRole::ROLE_OUTLINEITEM :
  91                        nsIAccessibleRole::ROLE_LISTITEM;
  92
  93   return NS_OK;
  94 }
  95
  96 NS_IMETHODIMP nsXULTreeitemAccessibleWrap::GetBounds(PRInt32 *x, PRInt32 *y, PRInt32 *width, PRInt32 *height)
  97 {
  98   nsresult rv = nsXULTreeitemAccessible::GetBounds(x, y, width, height);
  99   if (NS_FAILED(rv)) {
 100     return rv;
 101   }
 102   nsIFrame *frame = GetFrame();
 103   if (frame) {
 104     // Will subtract first cell's start x from total width
 105     PRInt32 cellStartX, cellStartY;
 106     NS_ENSURE_STATE(mTree);
 107     mTree->GetCoordsForCellItem(mRow, mColumn, EmptyCString(), &cellStartX, &cellStartY, width, height);
 108     // Use entire row width, not just key column's width
 109     *width = GetPresContext()->AppUnitsToDevPixels(frame->GetRect().width) -
 110              cellStartX;
 111   }
 112
 113   return NS_OK;
 114 }
 115
 116 NS_IMETHODIMP
 117 nsXULTreeitemAccessibleWrap::GetName(nsAString& aName)
 118 {
 119   NS_ENSURE_STATE(mTree);
 120   nsCOMPtr<nsITreeColumns> cols;
 121   mTree->GetColumns(getter_AddRefs(cols));
 122   if (!cols) {
 123     return NS_OK;
 124   }
 125   nsCOMPtr<nsITreeColumn> column;
 126   cols->GetFirstColumn(getter_AddRefs(column));
 127   while (column) {
 128     nsAutoString colText;
 129     mTreeView->GetCellText(mRow, column, colText);
 130     aName += colText + NS_LITERAL_STRING("  ");
 131     nsCOMPtr<nsITreeColumn> nextColumn;
 132     column->GetNext(getter_AddRefs(nextColumn));
 133     column = nextColumn;
 134   }
 135
 136   return NS_OK;
 137 }
 138