dom/base/nsQueryContentEventResult.cpp

   1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
   2 /* This Source Code Form is subject to the terms of the Mozilla Public
   3  * License, v. 2.0. If a copy of the MPL was not distributed with this
   4  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   5
   6 #include "nsQueryContentEventResult.h"
   7 #include "nsIWidget.h"
   8 #include "nsPoint.h"
   9 #include "mozilla/TextEvents.h"
  10
  11 using namespace mozilla;
  12
  13 NS_INTERFACE_MAP_BEGIN(nsQueryContentEventResult)
  14   NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, nsIQueryContentEventResult)
  15   NS_INTERFACE_MAP_ENTRY(nsIQueryContentEventResult)
  16 NS_INTERFACE_MAP_END
  17
  18 NS_IMPL_ADDREF(nsQueryContentEventResult)
  19 NS_IMPL_RELEASE(nsQueryContentEventResult)
  20
  21 nsQueryContentEventResult::nsQueryContentEventResult() :
  22   mEventID(0), mSucceeded(false)
  23 {
  24 }
  25
  26 nsQueryContentEventResult::~nsQueryContentEventResult()
  27 {
  28 }
  29
  30 NS_IMETHODIMP
  31 nsQueryContentEventResult::GetOffset(uint32_t *aOffset)
  32 {
  33   bool notFound;
  34   nsresult rv = GetNotFound(&notFound);
  35   NS_ENSURE_SUCCESS(rv, rv);
  36   NS_ENSURE_TRUE(!notFound, NS_ERROR_NOT_AVAILABLE);
  37   *aOffset = mOffset;
  38   return NS_OK;
  39 }
  40
  41 static bool IsRectEnabled(uint32_t aEventID)
  42 {
  43   return aEventID == NS_QUERY_CARET_RECT ||
  44          aEventID == NS_QUERY_TEXT_RECT ||
  45          aEventID == NS_QUERY_EDITOR_RECT ||
  46          aEventID == NS_QUERY_CHARACTER_AT_POINT;
  47 }
  48
  49 NS_IMETHODIMP
  50 nsQueryContentEventResult::GetReversed(bool *aReversed)
  51 {
  52   NS_ENSURE_TRUE(mSucceeded, NS_ERROR_NOT_AVAILABLE);
  53   NS_ENSURE_TRUE(mEventID == NS_QUERY_SELECTED_TEXT,
  54                  NS_ERROR_NOT_AVAILABLE);
  55   *aReversed = mReversed;
  56   return NS_OK;
  57 }
  58
  59 NS_IMETHODIMP
  60 nsQueryContentEventResult::GetLeft(int32_t *aLeft)
  61 {
  62   NS_ENSURE_TRUE(mSucceeded, NS_ERROR_NOT_AVAILABLE);
  63   NS_ENSURE_TRUE(IsRectEnabled(mEventID),
  64                  NS_ERROR_NOT_AVAILABLE);
  65   *aLeft = mRect.x;
  66   return NS_OK;
  67 }
  68
  69 NS_IMETHODIMP
  70 nsQueryContentEventResult::GetWidth(int32_t *aWidth)
  71 {
  72   NS_ENSURE_TRUE(mSucceeded, NS_ERROR_NOT_AVAILABLE);
  73   NS_ENSURE_TRUE(IsRectEnabled(mEventID),
  74                  NS_ERROR_NOT_AVAILABLE);
  75   *aWidth = mRect.width;
  76   return NS_OK;
  77 }
  78
  79 NS_IMETHODIMP
  80 nsQueryContentEventResult::GetTop(int32_t *aTop)
  81 {
  82   NS_ENSURE_TRUE(mSucceeded, NS_ERROR_NOT_AVAILABLE);
  83   NS_ENSURE_TRUE(IsRectEnabled(mEventID),
  84                  NS_ERROR_NOT_AVAILABLE);
  85   *aTop = mRect.y;
  86   return NS_OK;
  87 }
  88
  89 NS_IMETHODIMP
  90 nsQueryContentEventResult::GetHeight(int32_t *aHeight)
  91 {
  92   NS_ENSURE_TRUE(mSucceeded, NS_ERROR_NOT_AVAILABLE);
  93   NS_ENSURE_TRUE(IsRectEnabled(mEventID),
  94                  NS_ERROR_NOT_AVAILABLE);
  95   *aHeight = mRect.height;
  96   return NS_OK;
  97 }
  98
  99 NS_IMETHODIMP
 100 nsQueryContentEventResult::GetText(nsAString &aText)
 101 {
 102   NS_ENSURE_TRUE(mSucceeded, NS_ERROR_NOT_AVAILABLE);
 103   NS_ENSURE_TRUE(mEventID == NS_QUERY_SELECTED_TEXT ||
 104                  mEventID == NS_QUERY_TEXT_CONTENT,
 105                  NS_ERROR_NOT_AVAILABLE);
 106   aText = mString;
 107   return NS_OK;
 108 }
 109
 110 NS_IMETHODIMP
 111 nsQueryContentEventResult::GetSucceeded(bool *aSucceeded)
 112 {
 113   NS_ENSURE_TRUE(mEventID != 0, NS_ERROR_NOT_INITIALIZED);
 114   *aSucceeded = mSucceeded;
 115   return NS_OK;
 116 }
 117
 118 NS_IMETHODIMP
 119 nsQueryContentEventResult::GetNotFound(bool *aNotFound)
 120 {
 121   NS_ENSURE_TRUE(mSucceeded, NS_ERROR_NOT_AVAILABLE);
 122   NS_ENSURE_TRUE(mEventID == NS_QUERY_SELECTED_TEXT ||
 123                  mEventID == NS_QUERY_CHARACTER_AT_POINT,
 124                  NS_ERROR_NOT_AVAILABLE);
 125   *aNotFound = (mOffset == WidgetQueryContentEvent::NOT_FOUND);
 126   return NS_OK;
 127 }
 128
 129 void
 130 nsQueryContentEventResult::SetEventResult(nsIWidget* aWidget,
 131                                           const WidgetQueryContentEvent &aEvent)
 132 {
 133   mEventID = aEvent.message;
 134   mSucceeded = aEvent.mSucceeded;
 135   mReversed = aEvent.mReply.mReversed;
 136   mRect = aEvent.mReply.mRect;
 137   mOffset = aEvent.mReply.mOffset;
 138   mString = aEvent.mReply.mString;
 139
 140   if (!IsRectEnabled(mEventID) || !aWidget || !mSucceeded) {
 141     return;
 142   }
 143
 144   nsIWidget* topWidget = aWidget->GetTopLevelWidget();
 145   if (!topWidget || topWidget == aWidget) {
 146     return;
 147   }
 148
 149   // Convert the top widget related coordinates to the given widget's.
 150   nsIntPoint offset =
 151     aWidget->WidgetToScreenOffset() - topWidget->WidgetToScreenOffset();
 152   mRect.MoveBy(-offset);
 153 }