LCOV - code coverage report
Current view: directory - layout/forms - nsGfxButtonControlFrame.cpp (source / functions) Found Hit Coverage
Test: app.info Lines: 104 0 0.0 %
Date: 2012-06-02 Functions: 19 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 "nsGfxButtonControlFrame.h"
      39                 : #include "nsWidgetsCID.h"
      40                 : #include "nsFormControlFrame.h"
      41                 : #include "nsIFormControl.h"
      42                 : #include "nsINameSpaceManager.h"
      43                 : #ifdef ACCESSIBILITY
      44                 : #include "nsAccessibilityService.h"
      45                 : #endif
      46                 : #include "nsIServiceManager.h"
      47                 : #include "nsIDOMNode.h"
      48                 : #include "nsGkAtoms.h"
      49                 : #include "nsAutoPtr.h"
      50                 : #include "nsStyleSet.h"
      51                 : #include "nsContentUtils.h"
      52                 : // MouseEvent suppression in PP
      53                 : #include "nsGUIEvent.h"
      54                 : #include "nsContentCreatorFunctions.h"
      55                 : 
      56                 : #include "nsNodeInfoManager.h"
      57                 : #include "nsIDOMHTMLInputElement.h"
      58                 : 
      59                 : const nscoord kSuggestedNotSet = -1;
      60                 : 
      61               0 : nsGfxButtonControlFrame::nsGfxButtonControlFrame(nsStyleContext* aContext):
      62               0 :   nsHTMLButtonControlFrame(aContext)
      63                 : {
      64               0 : }
      65                 : 
      66                 : nsIFrame*
      67               0 : NS_NewGfxButtonControlFrame(nsIPresShell* aPresShell, nsStyleContext* aContext)
      68                 : {
      69               0 :   return new (aPresShell) nsGfxButtonControlFrame(aContext);
      70                 : }
      71                 : 
      72               0 : NS_IMPL_FRAMEARENA_HELPERS(nsGfxButtonControlFrame)
      73                 : 
      74               0 : void nsGfxButtonControlFrame::DestroyFrom(nsIFrame* aDestructRoot)
      75                 : {
      76               0 :   nsContentUtils::DestroyAnonymousContent(&mTextContent);
      77               0 :   nsHTMLButtonControlFrame::DestroyFrom(aDestructRoot);
      78               0 : }
      79                 : 
      80                 : nsIAtom*
      81               0 : nsGfxButtonControlFrame::GetType() const
      82                 : {
      83               0 :   return nsGkAtoms::gfxButtonControlFrame;
      84                 : }
      85                 : 
      86                 : // Special check for the browse button of a file input.
      87                 : //
      88                 : // We'll return true if type is NS_FORM_INPUT_BUTTON and our parent
      89                 : // is a file input.
      90                 : bool
      91               0 : nsGfxButtonControlFrame::IsFileBrowseButton(PRInt32 type)
      92                 : {
      93               0 :   bool rv = false;
      94               0 :   if (NS_FORM_INPUT_BUTTON == type) {
      95                 :     // Check to see if parent is a file input
      96                 :     nsCOMPtr<nsIFormControl> formCtrl =
      97               0 :       do_QueryInterface(mContent->GetParent());
      98                 : 
      99               0 :     rv = formCtrl && formCtrl->GetType() == NS_FORM_INPUT_FILE;
     100                 :   }
     101               0 :   return rv;
     102                 : }
     103                 : 
     104                 : #ifdef DEBUG
     105                 : NS_IMETHODIMP
     106               0 : nsGfxButtonControlFrame::GetFrameName(nsAString& aResult) const
     107                 : {
     108               0 :   return MakeFrameName(NS_LITERAL_STRING("ButtonControl"), aResult);
     109                 : }
     110                 : #endif
     111                 : 
     112                 : // Create the text content used as label for the button.
     113                 : // The frame will be generated by the frame constructor.
     114                 : nsresult
     115               0 : nsGfxButtonControlFrame::CreateAnonymousContent(nsTArray<ContentInfo>& aElements)
     116                 : {
     117               0 :   nsXPIDLString label;
     118               0 :   GetLabel(label);
     119                 : 
     120                 :   // Add a child text content node for the label
     121               0 :   NS_NewTextNode(getter_AddRefs(mTextContent),
     122               0 :                  mContent->NodeInfo()->NodeInfoManager());
     123               0 :   if (!mTextContent)
     124               0 :     return NS_ERROR_OUT_OF_MEMORY;
     125                 : 
     126                 :   // set the value of the text node and add it to the child list
     127               0 :   mTextContent->SetText(label, false);
     128               0 :   if (!aElements.AppendElement(mTextContent))
     129               0 :     return NS_ERROR_OUT_OF_MEMORY;
     130               0 :   return NS_OK;
     131                 : }
     132                 : 
     133                 : void
     134               0 : nsGfxButtonControlFrame::AppendAnonymousContentTo(nsBaseContentList& aElements,
     135                 :                                                   PRUint32 aFilter)
     136                 : {
     137               0 :   aElements.MaybeAppendElement(mTextContent);
     138               0 : }
     139                 : 
     140                 : // Create the text content used as label for the button.
     141                 : // The frame will be generated by the frame constructor.
     142                 : nsIFrame*
     143               0 : nsGfxButtonControlFrame::CreateFrameFor(nsIContent*      aContent)
     144                 : {
     145               0 :   nsIFrame * newFrame = nsnull;
     146                 : 
     147               0 :   if (aContent == mTextContent) {
     148               0 :     nsIFrame * parentFrame = mFrames.FirstChild();
     149                 : 
     150               0 :     nsPresContext* presContext = PresContext();
     151               0 :     nsRefPtr<nsStyleContext> textStyleContext;
     152                 :     textStyleContext = presContext->StyleSet()->
     153               0 :       ResolveStyleForNonElement(mStyleContext);
     154                 : 
     155               0 :     if (textStyleContext) {
     156               0 :       newFrame = NS_NewTextFrame(presContext->PresShell(), textStyleContext);
     157               0 :       if (newFrame) {
     158                 :         // initialize the text frame
     159               0 :         newFrame->Init(mTextContent, parentFrame, nsnull);
     160               0 :         mTextContent->SetPrimaryFrame(newFrame);
     161                 :       }
     162                 :     }
     163                 :   }
     164                 : 
     165               0 :   return newFrame;
     166                 : }
     167                 : 
     168                 : nsresult
     169               0 : nsGfxButtonControlFrame::GetFormProperty(nsIAtom* aName, nsAString& aValue) const
     170                 : {
     171               0 :   nsresult rv = NS_OK;
     172               0 :   if (nsGkAtoms::defaultLabel == aName) {
     173                 :     // This property is used by accessibility to get
     174                 :     // the default label of the button.
     175               0 :     nsXPIDLString temp;
     176               0 :     rv = const_cast<nsGfxButtonControlFrame*>(this)->GetDefaultLabel(temp);
     177               0 :     aValue = temp;
     178                 :   } else {
     179               0 :     aValue.Truncate();
     180                 :   }
     181               0 :   return rv;
     182                 : }
     183                 : 
     184               0 : NS_QUERYFRAME_HEAD(nsGfxButtonControlFrame)
     185               0 :   NS_QUERYFRAME_ENTRY(nsIAnonymousContentCreator)
     186               0 : NS_QUERYFRAME_TAIL_INHERITING(nsHTMLButtonControlFrame)
     187                 : 
     188                 : // Initially we hardcoded the default strings here.
     189                 : // Next, we used html.css to store the default label for various types
     190                 : // of buttons. (nsGfxButtonControlFrame::DoNavQuirksReflow rev 1.20)
     191                 : // However, since html.css is not internationalized, we now grab the default
     192                 : // label from a string bundle as is done for all other UI strings.
     193                 : // See bug 16999 for further details.
     194                 : nsresult
     195               0 : nsGfxButtonControlFrame::GetDefaultLabel(nsXPIDLString& aString)
     196                 : {
     197               0 :   nsCOMPtr<nsIFormControl> form = do_QueryInterface(mContent);
     198               0 :   NS_ENSURE_TRUE(form, NS_ERROR_UNEXPECTED);
     199                 : 
     200               0 :   PRInt32 type = form->GetType();
     201                 :   const char *prop;
     202               0 :   if (type == NS_FORM_INPUT_RESET) {
     203               0 :     prop = "Reset";
     204                 :   } 
     205               0 :   else if (type == NS_FORM_INPUT_SUBMIT) {
     206               0 :     prop = "Submit";
     207                 :   } 
     208               0 :   else if (IsFileBrowseButton(type)) {
     209               0 :     prop = "Browse";
     210                 :   }
     211                 :   else {
     212               0 :     aString.Truncate();
     213               0 :     return NS_OK;
     214                 :   }
     215                 : 
     216                 :   return nsContentUtils::GetLocalizedString(nsContentUtils::eFORMS_PROPERTIES,
     217               0 :                                             prop, aString);
     218                 : }
     219                 : 
     220                 : nsresult
     221               0 : nsGfxButtonControlFrame::GetLabel(nsXPIDLString& aLabel)
     222                 : {
     223                 :   // Get the text from the "value" property on our content if there is
     224                 :   // one; otherwise set it to a default value (localized).
     225                 :   nsresult rv;
     226               0 :   nsCOMPtr<nsIDOMHTMLInputElement> elt = do_QueryInterface(mContent);
     227               0 :   if (mContent->HasAttr(kNameSpaceID_None, nsGkAtoms::value) && elt) {
     228               0 :     rv = elt->GetValue(aLabel);
     229                 :   } else {
     230                 :     // Generate localized label.
     231                 :     // We can't make any assumption as to what the default would be
     232                 :     // because the value is localized for non-english platforms, thus
     233                 :     // it might not be the string "Reset", "Submit Query", or "Browse..."
     234               0 :     rv = GetDefaultLabel(aLabel);
     235                 :   }
     236                 : 
     237               0 :   NS_ENSURE_SUCCESS(rv, rv);
     238                 : 
     239                 :   // Compress whitespace out of label if needed.
     240               0 :   if (!GetStyleText()->WhiteSpaceIsSignificant()) {
     241               0 :     aLabel.CompressWhitespace();
     242               0 :   } else if (aLabel.Length() > 2 && aLabel.First() == ' ' &&
     243               0 :              aLabel.CharAt(aLabel.Length() - 1) == ' ') {
     244                 :     // This is a bit of a hack.  The reason this is here is as follows: we now
     245                 :     // have default padding on our buttons to make them non-ugly.
     246                 :     // Unfortunately, IE-windows does not have such padding, so people will
     247                 :     // stick values like " ok " (with the spaces) in the buttons in an attempt
     248                 :     // to make them look decent.  Unfortunately, if they do this the button
     249                 :     // looks way too big in Mozilla.  Worse yet, if they do this _and_ set a
     250                 :     // fixed width for the button we run into trouble because our focus-rect
     251                 :     // border/padding and outer border take up 10px of the horizontal button
     252                 :     // space or so; the result is that the text is misaligned, even with the
     253                 :     // recentering we do in nsHTMLButtonFrame::Reflow.  So to solve this, even
     254                 :     // if the whitespace is significant, single leading and trailing _spaces_
     255                 :     // (and not other whitespace) are removed.  The proper solution, of
     256                 :     // course, is to not have the focus rect painting taking up 6px of
     257                 :     // horizontal space. We should do that instead (via XBL form controls or
     258                 :     // changing the renderer) and remove this.
     259               0 :     aLabel.Cut(0, 1);
     260               0 :     aLabel.Truncate(aLabel.Length() - 1);
     261                 :   }
     262                 : 
     263               0 :   return NS_OK;
     264                 : }
     265                 : 
     266                 : NS_IMETHODIMP
     267               0 : nsGfxButtonControlFrame::AttributeChanged(PRInt32         aNameSpaceID,
     268                 :                                           nsIAtom*        aAttribute,
     269                 :                                           PRInt32         aModType)
     270                 : {
     271               0 :   nsresult rv = NS_OK;
     272                 : 
     273                 :   // If the value attribute is set, update the text of the label
     274               0 :   if (nsGkAtoms::value == aAttribute) {
     275               0 :     if (mTextContent && mContent) {
     276               0 :       nsXPIDLString label;
     277               0 :       rv = GetLabel(label);
     278               0 :       NS_ENSURE_SUCCESS(rv, rv);
     279                 :     
     280               0 :       mTextContent->SetText(label, true);
     281                 :     } else {
     282               0 :       rv = NS_ERROR_UNEXPECTED;
     283                 :     }
     284                 : 
     285                 :   // defer to HTMLButtonControlFrame
     286                 :   } else {
     287               0 :     rv = nsHTMLButtonControlFrame::AttributeChanged(aNameSpaceID, aAttribute, aModType);
     288                 :   }
     289               0 :   return rv;
     290                 : }
     291                 : 
     292                 : bool
     293               0 : nsGfxButtonControlFrame::IsLeaf() const
     294                 : {
     295               0 :   return true;
     296                 : }
     297                 : 
     298                 : nsIFrame*
     299               0 : nsGfxButtonControlFrame::GetContentInsertionFrame()
     300                 : {
     301               0 :   return this;
     302                 : }
     303                 : 
     304                 : NS_IMETHODIMP
     305               0 : nsGfxButtonControlFrame::HandleEvent(nsPresContext* aPresContext, 
     306                 :                                       nsGUIEvent*     aEvent,
     307                 :                                       nsEventStatus*  aEventStatus)
     308                 : {
     309                 :   // Override the HandleEvent to prevent the nsFrame::HandleEvent
     310                 :   // from being called. The nsFrame::HandleEvent causes the button label
     311                 :   // to be selected (Drawn with an XOR rectangle over the label)
     312                 : 
     313                 :   // do we have user-input style?
     314               0 :   const nsStyleUserInterface* uiStyle = GetStyleUserInterface();
     315               0 :   if (uiStyle->mUserInput == NS_STYLE_USER_INPUT_NONE || uiStyle->mUserInput == NS_STYLE_USER_INPUT_DISABLED)
     316               0 :     return nsFrame::HandleEvent(aPresContext, aEvent, aEventStatus);
     317                 :   
     318               0 :   return NS_OK;
     319                 : }

Generated by: LCOV version 1.7