dom/base/nsQueryContentEventResult.cpp

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   3  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
   4  *
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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
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  19  * Portions created by the Initial Developer are Copyright (C) 2009
  20  * the Initial Developer. All Rights Reserved.
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  22  * Contributor(s):
  23  *   Masayuki Nakano <masayuki@d-toybox.com>
  24  *
  25  * Alternatively, the contents of this file may be used under the terms of
  26  * either of the GNU General Public License Version 2 or later (the "GPL"),
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  37  * ***** END LICENSE BLOCK ***** */
  38
  39 #include "nsQueryContentEventResult.h"
  40 #include "nsGUIEvent.h"
  41 #include "nsIWidget.h"
  42 #include "nsPoint.h"
  43
  44 NS_INTERFACE_MAP_BEGIN(nsQueryContentEventResult)
  45   NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, nsIQueryContentEventResult)
  46   NS_INTERFACE_MAP_ENTRY(nsIQueryContentEventResult)
  47 NS_INTERFACE_MAP_END
  48
  49 NS_IMPL_ADDREF(nsQueryContentEventResult)
  50 NS_IMPL_RELEASE(nsQueryContentEventResult)
  51
  52 nsQueryContentEventResult::nsQueryContentEventResult() :
  53   mEventID(0), mSucceeded(PR_FALSE)
  54 {
  55 }
  56
  57 nsQueryContentEventResult::~nsQueryContentEventResult()
  58 {
  59 }
  60
  61 NS_IMETHODIMP
  62 nsQueryContentEventResult::GetOffset(PRUint32 *aOffset)
  63 {
  64   PRBool notFound;
  65   nsresult rv = GetNotFound(&notFound);
  66   NS_ENSURE_SUCCESS(rv, rv);
  67   NS_ENSURE_TRUE(!notFound, NS_ERROR_NOT_AVAILABLE);
  68   *aOffset = mOffset;
  69   return NS_OK;
  70 }
  71
  72 static PRBool IsRectEnabled(PRUint32 aEventID)
  73 {
  74   return aEventID == NS_QUERY_CARET_RECT ||
  75          aEventID == NS_QUERY_TEXT_RECT ||
  76          aEventID == NS_QUERY_EDITOR_RECT ||
  77          aEventID == NS_QUERY_CHARACTER_AT_POINT;
  78 }
  79
  80 NS_IMETHODIMP
  81 nsQueryContentEventResult::GetReversed(PRBool *aReversed)
  82 {
  83   NS_ENSURE_TRUE(mSucceeded, NS_ERROR_NOT_AVAILABLE);
  84   NS_ENSURE_TRUE(mEventID == NS_QUERY_SELECTED_TEXT,
  85                  NS_ERROR_NOT_AVAILABLE);
  86   *aReversed = mReversed;
  87   return NS_OK;
  88 }
  89
  90 NS_IMETHODIMP
  91 nsQueryContentEventResult::GetLeft(PRInt32 *aLeft)
  92 {
  93   NS_ENSURE_TRUE(mSucceeded, NS_ERROR_NOT_AVAILABLE);
  94   NS_ENSURE_TRUE(IsRectEnabled(mEventID),
  95                  NS_ERROR_NOT_AVAILABLE);
  96   *aLeft = mRect.x;
  97   return NS_OK;
  98 }
  99
 100 NS_IMETHODIMP
 101 nsQueryContentEventResult::GetWidth(PRInt32 *aWidth)
 102 {
 103   NS_ENSURE_TRUE(mSucceeded, NS_ERROR_NOT_AVAILABLE);
 104   NS_ENSURE_TRUE(IsRectEnabled(mEventID),
 105                  NS_ERROR_NOT_AVAILABLE);
 106   *aWidth = mRect.width;
 107   return NS_OK;
 108 }
 109
 110 NS_IMETHODIMP
 111 nsQueryContentEventResult::GetTop(PRInt32 *aTop)
 112 {
 113   NS_ENSURE_TRUE(mSucceeded, NS_ERROR_NOT_AVAILABLE);
 114   NS_ENSURE_TRUE(IsRectEnabled(mEventID),
 115                  NS_ERROR_NOT_AVAILABLE);
 116   *aTop = mRect.y;
 117   return NS_OK;
 118 }
 119
 120 NS_IMETHODIMP
 121 nsQueryContentEventResult::GetHeight(PRInt32 *aHeight)
 122 {
 123   NS_ENSURE_TRUE(mSucceeded, NS_ERROR_NOT_AVAILABLE);
 124   NS_ENSURE_TRUE(IsRectEnabled(mEventID),
 125                  NS_ERROR_NOT_AVAILABLE);
 126   *aHeight = mRect.height;
 127   return NS_OK;
 128 }
 129
 130 NS_IMETHODIMP
 131 nsQueryContentEventResult::GetText(nsAString &aText)
 132 {
 133   NS_ENSURE_TRUE(mSucceeded, NS_ERROR_NOT_AVAILABLE);
 134   NS_ENSURE_TRUE(mEventID == NS_QUERY_SELECTED_TEXT ||
 135                  mEventID == NS_QUERY_TEXT_CONTENT,
 136                  NS_ERROR_NOT_AVAILABLE);
 137   aText = mString;
 138   return NS_OK;
 139 }
 140
 141 NS_IMETHODIMP
 142 nsQueryContentEventResult::GetSucceeded(PRBool *aSucceeded)
 143 {
 144   NS_ENSURE_TRUE(mEventID != 0, NS_ERROR_NOT_INITIALIZED);
 145   *aSucceeded = mSucceeded;
 146   return NS_OK;
 147 }
 148
 149 NS_IMETHODIMP
 150 nsQueryContentEventResult::GetNotFound(PRBool *aNotFound)
 151 {
 152   NS_ENSURE_TRUE(mSucceeded, NS_ERROR_NOT_AVAILABLE);
 153   NS_ENSURE_TRUE(mEventID == NS_QUERY_SELECTED_TEXT ||
 154                  mEventID == NS_QUERY_CHARACTER_AT_POINT,
 155                  NS_ERROR_NOT_AVAILABLE);
 156   *aNotFound = (mOffset == nsQueryContentEvent::NOT_FOUND);
 157   return NS_OK;
 158 }
 159
 160 void
 161 nsQueryContentEventResult::SetEventResult(nsIWidget* aWidget,
 162                                           const nsQueryContentEvent &aEvent)
 163 {
 164   mEventID = aEvent.message;
 165   mSucceeded = aEvent.mSucceeded;
 166   mReversed = aEvent.mReply.mReversed;
 167   mRect = aEvent.mReply.mRect;
 168   mOffset = aEvent.mReply.mOffset;
 169   mString = aEvent.mReply.mString;
 170
 171   if (!IsRectEnabled(mEventID) || !aWidget || !mSucceeded) {
 172     return;
 173   }
 174
 175   nsIWidget* topWidget = aWidget->GetTopLevelWidget();
 176   if (!topWidget || topWidget == aWidget) {
 177     return;
 178   }
 179
 180   // Convert the top widget related coordinates to the given widget's.
 181   nsIntPoint offset =
 182     aWidget->WidgetToScreenOffset() - topWidget->WidgetToScreenOffset();
 183   mRect.MoveBy(-offset);
 184 }