LCOV - app.info - layout/forms/nsGfxButtonControlFrame.cpp

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: | 2012-04-21 | 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                 : }

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