LCOV - code coverage report
Current view: directory - layout/forms - nsFormControlFrame.cpp (source / functions) Found Hit Coverage
Test: app.info Lines: 73 0 0.0 %
Date: 2012-06-02 Functions: 18 0 0.0 %

       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/
       9                 :  *
      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
      13                 :  * License.
      14                 :  *
      15                 :  * The Original Code is mozilla.org code.
      16                 :  *
      17                 :  * The Initial Developer of the Original Code is
      18                 :  * Netscape Communications Corporation.
      19                 :  * Portions created by the Initial Developer are Copyright (C) 1998
      20                 :  * the Initial Developer. All Rights Reserved.
      21                 :  *
      22                 :  * Contributor(s):
      23                 :  *
      24                 :  * Alternatively, the contents of this file may be used under the terms of
      25                 :  * either of the GNU General Public License Version 2 or later (the "GPL"),
      26                 :  * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
      27                 :  * in which case the provisions of the GPL or the LGPL are applicable instead
      28                 :  * of those above. If you wish to allow use of your version of this file only
      29                 :  * under the terms of either the GPL or the LGPL, and not to allow others to
      30                 :  * use your version of this file under the terms of the MPL, indicate your
      31                 :  * decision by deleting the provisions above and replace them with the notice
      32                 :  * and other provisions required by the GPL or the LGPL. If you do not delete
      33                 :  * the provisions above, a recipient may use your version of this file under
      34                 :  * the terms of any one of the MPL, the GPL or the LGPL.
      35                 :  *
      36                 :  * ***** END LICENSE BLOCK ***** */
      37                 : 
      38                 : #include "nsFormControlFrame.h"
      39                 : #include "nsGkAtoms.h"
      40                 : #include "nsLayoutUtils.h"
      41                 : #include "nsIDOMHTMLInputElement.h"
      42                 : #include "nsEventStateManager.h"
      43                 : #include "mozilla/LookAndFeel.h"
      44                 : 
      45                 : using namespace mozilla;
      46                 : 
      47                 : //#define FCF_NOISY
      48                 : 
      49                 : const PRInt32 kSizeNotSet = -1;
      50                 : 
      51               0 : nsFormControlFrame::nsFormControlFrame(nsStyleContext* aContext) :
      52               0 :   nsLeafFrame(aContext)
      53                 : {
      54               0 : }
      55                 : 
      56               0 : nsFormControlFrame::~nsFormControlFrame()
      57                 : {
      58               0 : }
      59                 : 
      60                 : void
      61               0 : nsFormControlFrame::DestroyFrom(nsIFrame* aDestructRoot)
      62                 : {
      63                 :   // Unregister the access key registered in reflow
      64               0 :   nsFormControlFrame::RegUnRegAccessKey(static_cast<nsIFrame*>(this), false);
      65               0 :   nsLeafFrame::DestroyFrom(aDestructRoot);
      66               0 : }
      67                 : 
      68               0 : NS_QUERYFRAME_HEAD(nsFormControlFrame)
      69               0 :   NS_QUERYFRAME_ENTRY(nsIFormControlFrame)
      70               0 : NS_QUERYFRAME_TAIL_INHERITING(nsLeafFrame)
      71                 : 
      72               0 : NS_IMPL_FRAMEARENA_HELPERS(nsFormControlFrame)
      73                 : 
      74                 : nscoord
      75               0 : nsFormControlFrame::GetIntrinsicWidth()
      76                 : {
      77                 :   // Provide a reasonable default for sites that use an "auto" height.
      78                 :   // Note that if you change this, you should change the values in forms.css
      79                 :   // as well.  This is the 13px default width minus the 2px default border.
      80               0 :   return nsPresContext::CSSPixelsToAppUnits(13 - 2 * 2);
      81                 : }
      82                 : 
      83                 : nscoord
      84               0 : nsFormControlFrame::GetIntrinsicHeight()
      85                 : {
      86                 :   // Provide a reasonable default for sites that use an "auto" height.
      87                 :   // Note that if you change this, you should change the values in forms.css
      88                 :   // as well. This is the 13px default width minus the 2px default border.
      89               0 :   return nsPresContext::CSSPixelsToAppUnits(13 - 2 * 2);
      90                 : }
      91                 : 
      92                 : nscoord
      93               0 : nsFormControlFrame::GetBaseline() const
      94                 : {
      95               0 :   NS_ASSERTION(!NS_SUBTREE_DIRTY(this),
      96                 :                "frame must not be dirty");
      97                 :   // Treat radio buttons and checkboxes as having an intrinsic baseline
      98                 :   // at the bottom of the control (use the bottom content edge rather
      99                 :   // than the bottom margin edge).
     100               0 :   return mRect.height - GetUsedBorderAndPadding().bottom;
     101                 : }
     102                 : 
     103                 : NS_METHOD
     104               0 : nsFormControlFrame::Reflow(nsPresContext*          aPresContext,
     105                 :                            nsHTMLReflowMetrics&     aDesiredSize,
     106                 :                            const nsHTMLReflowState& aReflowState,
     107                 :                            nsReflowStatus&          aStatus)
     108                 : {
     109               0 :   DO_GLOBAL_REFLOW_COUNT("nsFormControlFrame");
     110               0 :   DISPLAY_REFLOW(aPresContext, this, aReflowState, aDesiredSize, aStatus);
     111                 : 
     112               0 :   if (mState & NS_FRAME_FIRST_REFLOW) {
     113               0 :     RegUnRegAccessKey(static_cast<nsIFrame*>(this), true);
     114                 :   }
     115                 : 
     116                 :   nsresult rv = nsLeafFrame::Reflow(aPresContext, aDesiredSize, aReflowState,
     117               0 :                                     aStatus);
     118               0 :   if (NS_FAILED(rv)) {
     119               0 :     return rv;
     120                 :   }
     121                 : 
     122               0 :   if (nsLayoutUtils::FontSizeInflationEnabled(aPresContext)) {
     123                 :     float inflation =
     124               0 :       nsLayoutUtils::FontSizeInflationFor(this, nsLayoutUtils::eInReflow);
     125               0 :     aDesiredSize.width *= inflation;
     126               0 :     aDesiredSize.height *= inflation;
     127               0 :     aDesiredSize.UnionOverflowAreasWithDesiredBounds();
     128               0 :     FinishAndStoreOverflow(&aDesiredSize);
     129                 :   }
     130               0 :   return NS_OK;
     131                 : }
     132                 : 
     133                 : nsresult
     134               0 : nsFormControlFrame::RegUnRegAccessKey(nsIFrame * aFrame, bool aDoReg)
     135                 : {
     136               0 :   NS_ENSURE_ARG_POINTER(aFrame);
     137                 :   
     138               0 :   nsPresContext* presContext = aFrame->PresContext();
     139                 :   
     140               0 :   NS_ASSERTION(presContext, "aPresContext is NULL in RegUnRegAccessKey!");
     141                 : 
     142               0 :   nsAutoString accessKey;
     143                 : 
     144               0 :   nsIContent* content = aFrame->GetContent();
     145               0 :   content->GetAttr(kNameSpaceID_None, nsGkAtoms::accesskey, accessKey);
     146               0 :   if (!accessKey.IsEmpty()) {
     147               0 :     nsEventStateManager *stateManager = presContext->EventStateManager();
     148               0 :     if (aDoReg) {
     149               0 :       stateManager->RegisterAccessKey(content, (PRUint32)accessKey.First());
     150                 :     } else {
     151               0 :       stateManager->UnregisterAccessKey(content, (PRUint32)accessKey.First());
     152                 :     }
     153               0 :     return NS_OK;
     154                 :   }
     155               0 :   return NS_ERROR_FAILURE;
     156                 : }
     157                 : 
     158                 : void 
     159               0 : nsFormControlFrame::SetFocus(bool aOn, bool aRepaint)
     160                 : {
     161               0 : }
     162                 : 
     163                 : NS_METHOD
     164               0 : nsFormControlFrame::HandleEvent(nsPresContext* aPresContext, 
     165                 :                                           nsGUIEvent* aEvent,
     166                 :                                           nsEventStatus* aEventStatus)
     167                 : {
     168                 :   // Check for user-input:none style
     169               0 :   const nsStyleUserInterface* uiStyle = GetStyleUserInterface();
     170               0 :   if (uiStyle->mUserInput == NS_STYLE_USER_INPUT_NONE ||
     171                 :       uiStyle->mUserInput == NS_STYLE_USER_INPUT_DISABLED)
     172               0 :     return nsFrame::HandleEvent(aPresContext, aEvent, aEventStatus);
     173                 : 
     174               0 :   return NS_OK;
     175                 : }
     176                 : 
     177                 : void
     178               0 : nsFormControlFrame::GetCurrentCheckState(bool *aState)
     179                 : {
     180               0 :   nsCOMPtr<nsIDOMHTMLInputElement> inputElement = do_QueryInterface(mContent);
     181               0 :   if (inputElement) {
     182               0 :     inputElement->GetChecked(aState);
     183                 :   }
     184               0 : }
     185                 : 
     186                 : nsresult
     187               0 : nsFormControlFrame::SetFormProperty(nsIAtom* aName, const nsAString& aValue)
     188                 : {
     189               0 :   return NS_OK;
     190                 : }
     191                 : 
     192                 : nsresult
     193               0 : nsFormControlFrame::GetFormProperty(nsIAtom* aName, nsAString& aValue) const
     194                 : {
     195               0 :   aValue.Truncate();
     196               0 :   return NS_OK;
     197                 : }
     198                 : 
     199                 : // static
     200                 : nsRect
     201               0 : nsFormControlFrame::GetUsableScreenRect(nsPresContext* aPresContext)
     202                 : {
     203               0 :   nsRect screen;
     204                 : 
     205               0 :   nsDeviceContext *context = aPresContext->DeviceContext();
     206                 :   PRInt32 dropdownCanOverlapOSBar =
     207               0 :     LookAndFeel::GetInt(LookAndFeel::eIntID_MenusCanOverlapOSBar, 0);
     208               0 :   if ( dropdownCanOverlapOSBar )
     209               0 :     context->GetRect(screen);
     210                 :   else
     211               0 :     context->GetClientRect(screen);
     212                 : 
     213                 :   return screen;
     214                 : }

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