Use GetValue() instead of GetAttr(nsGkAtoms::value) for getting the button

value.  And make the value determination consistent for initial and
value-changed.  Bug 326250, r=sicking, sr=roc

layout/forms/nsFormControlHelper.cpp

@@ -315,14 +315,6 @@ nsFormControlHelper::PaintCheckMark(nsIRenderingContext& aRenderingContext,
   aRenderingContext.FillPolygon(checkedPolygon, checkpoints);
 }
 
-PRBool
-nsFormControlHelper::GetValueAttr(nsIContent* aContent, nsAString* aResult)
-{
-  NS_PRECONDITION(aResult, "Null pointer bad!");
-  return aContent->IsContentOfType(nsIContent::eHTML) &&
-         aContent->GetAttr(kNameSpaceID_None, nsHTMLAtoms::value, *aResult);
-}
-
 //----------------------------------------------------------------------------------
 
 nsresult

layout/forms/nsFormControlHelper.h

@@ -1,263 +0,0 @@
-/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* ***** BEGIN LICENSE BLOCK *****
- * Version: MPL 1.1/GPL 2.0/LGPL 2.1
- *
- * The contents of this file are subject to the Mozilla Public License Version
- * 1.1 (the "License"); you may not use this file except in compliance with
- * the License. You may obtain a copy of the License at
- * http://www.mozilla.org/MPL/
- *
- * Software distributed under the License is distributed on an "AS IS" basis,
- * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
- * for the specific language governing rights and limitations under the
- * License.
- *
- * The Original Code is mozilla.org code.
- *
- * The Initial Developer of the Original Code is
- * Netscape Communications Corporation.
- * Portions created by the Initial Developer are Copyright (C) 1998
- * the Initial Developer. All Rights Reserved.
- *
- * Contributor(s):
- *
- * Alternatively, the contents of this file may be used under the terms of
- * either of the GNU General Public License Version 2 or later (the "GPL"),
- * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
- * in which case the provisions of the GPL or the LGPL are applicable instead
- * of those above. If you wish to allow use of your version of this file only
- * under the terms of either the GPL or the LGPL, and not to allow others to
- * use your version of this file under the terms of the MPL, indicate your
- * decision by deleting the provisions above and replace them with the notice
- * and other provisions required by the GPL or the LGPL. If you do not delete
- * the provisions above, a recipient may use your version of this file under
- * the terms of any one of the MPL, the GPL or the LGPL.
- *
- * ***** END LICENSE BLOCK ***** */
-
-#ifndef nsFormControlHelper_h___
-#define nsFormControlHelper_h___
-
-#include "nsIFormControlFrame.h"
-#include "nsISupports.h"
-#include "nsIWidget.h"
-#include "nsLeafFrame.h"
-#include "nsCoord.h"
-#include "nsHTMLAtoms.h"
-#include "nsINameSpaceManager.h"
-
-class nsIView;
-class nsPresContext;
-class nsStyleCoord;
-class nsStyleContext;
-
-#define CSS_NOTSET -1
-#define ATTR_NOTSET -1
-
-#define NS_STRING_TRUE   NS_LITERAL_STRING("1")
-#define NS_STRING_FALSE  NS_LITERAL_STRING("0")
-
-/**
-  * Enumeration of possible mouse states used to detect mouse clicks
-  */
-enum nsMouseState {
-  eMouseNone,
-  eMouseEnter,
-  eMouseExit,
-  eMouseDown,
-  eMouseUp
-};
-
-
-/** 
-  * nsFormControlHelper is the base class for frames of form controls. It
-  * provides a uniform way of creating widgets, resizing, and painting.
-  * @see nsLeafFrame and its base classes for more info
-  */
-class nsFormControlHelper 
-{
-
-public:
-  
-  // returns the an addref'ed FontMetrics for the default font for the frame
-  static nsresult GetFrameFontFM(nsIFrame* aFrame,
-                                 nsIFontMetrics** aFontMet);
-
-  // Map platform line endings (CR, CRLF, LF) to DOM line endings (LF)
-  static void PlatformToDOMLineBreaks(nsString &aString);
-
-  /**
-   * Get whether a form control is disabled
-   * @param aContent the content of the form control in question
-   * @return whether the form control is disabled
-   */
-  static PRBool GetDisabled(nsIContent* aContent) {
-    return aContent->HasAttr(kNameSpaceID_None, nsHTMLAtoms::disabled);
-  };
-
-  /**
-   * Get the value of the form control (if it's just living in an attr)
-   * @param aContent the content to get the name of
-   * @param aResult the returned value of the form control [OUT]
-   * @return PR_TRUE if things go well
-   *         PR_FALSE if the name attribute is undefined
-   */
-  static PRBool GetValueAttr(nsIContent* aContent, nsAString* aResult);
-  /**
-   * Cause the form control to reset its value
-   * @param aFrame the frame who owns the form control
-   * @param aPresContext the pres context
-   */
-  static nsresult Reset(nsIFrame* aFrame, nsPresContext* aPresContext);
-
-  /** 
-   * Utility to convert a string to a PRBool
-   * @param aValue string to convert to a PRBool
-   * @returns PR_TRUE if aValue = "1", PR_FALSE otherwise
-   */
-  static PRBool GetBool(const nsAString& aValue);
-
-  /** 
-   * Utility to convert a PRBool to a string
-   * @param aValue Boolean value to convert to string.
-   * @param aResult string to hold the boolean value. It is set to "1" 
-   *        if aValue equals PR_TRUE, "0" if aValue equals PR_FALSE.
-   */
-  static void  GetBoolString(const PRBool aValue, nsAString& aResult);
-  
-
-  static void GetRepChars(char& char1, char& char2) {
-    char1 = 'W';
-    char2 = 'w';
-  }
-
-  // wrap can be one of these three values.  
-  typedef enum {
-    eHTMLTextWrap_Off     = 1,    // "off"
-    eHTMLTextWrap_Hard    = 2,    // "hard"
-    eHTMLTextWrap_Soft    = 3     // the default
-  } nsHTMLTextWrap;
-
-  static PRBool GetWrapPropertyEnum(nsIContent * aContent, nsHTMLTextWrap& aWrapProp);
-
-//
-//-------------------------------------------------------------------------------------
-// Utility methods for rendering Form Elements using GFX
-//-------------------------------------------------------------------------------------
-//
-// XXX: The following location for the paint code is TEMPORARY. 
-// It is being used to get printing working
-// under windows. Later it will be used to GFX-render the controls to the display. 
-// Expect this code to repackaged and moved to a new location in the future.
-
-   /**
-    * Enumeration of possible mouse states used to detect mouse clicks
-    */
-   enum nsArrowDirection {
-    eArrowDirection_Left,
-    eArrowDirection_Right,
-    eArrowDirection_Up,
-    eArrowDirection_Down
-   };
-
-   /**
-    * Scale, translate and convert an arrow of poitns from nscoord's to nsPoints's.
-    *
-    * @param aNumberOfPoints number of (x,y) pairs
-    * @param aPoints arrow of points to convert
-    * @param aScaleFactor scale factor to apply to each points translation.
-    * @param aX x coordinate to add to each point after scaling
-    * @param aY y coordinate to add to each point after scaling
-    * @param aCenterX x coordinate of the center point in the original array of points.
-    * @param aCenterY y coordiante of the center point in the original array of points.
-    */
-
-   static void SetupPoints(PRUint32 aNumberOfPoints, nscoord* aPoints, 
-     nsPoint* aPolygon, nscoord aScaleFactor, nscoord aX, nscoord aY,
-     nscoord aCenterX, nscoord aCenterY);
-
-   /**
-    * Paint a fat line. The line is drawn as a polygon with a specified width.
-	  *  
-    * @param aRenderingContext the rendering context
-    * @param aSX starting x in pixels
-	  * @param aSY starting y in pixels
-	  * @param aEX ending x in pixels
-	  * @param aEY ending y in pixels
-    * @param aHorz PR_TRUE if aWidth is added to x coordinates to form polygon. If 
-	  *              PR_FALSE  then aWidth as added to the y coordinates.
-    * @param aOnePixel number of twips in a single pixel.
-    */
-
-  static void PaintLine(nsIRenderingContext& aRenderingContext, 
-                 nscoord aSX, nscoord aSY, nscoord aEX, nscoord aEY, 
-                 PRBool aHorz, nscoord aWidth, nscoord aOnePixel);
-
-   /**
-    * Paint a fixed size checkmark
-	  * 
-    * @param aRenderingContext the rendering context
-	  * @param aPixelsToTwips scale factor for convering pixels to twips.
-    */
-
-  static void PaintFixedSizeCheckMark(nsIRenderingContext& aRenderingContext, 
-                                     float aPixelsToTwips);
-                       
-  /**
-    * Paint a checkmark
-	  * 
-    * @param aRenderingContext the rendering context
-	  * @param aPixelsToTwips scale factor for convering pixels to twips.
-    * @param aWidth width in twips
-    * @param aHeight height in twips
-    */
-
-  static void PaintCheckMark(nsIRenderingContext& aRenderingContext,
-                             float aPixelsToTwips, const nsRect & aRect);
-
-   /**
-    * Paint a fixed size checkmark border
-	  * 
-    * @param aRenderingContext the rendering context
-	  * @param aPixelsToTwips scale factor for convering pixels to twips.
-    * @param aBackgroundColor color for background of the checkbox 
-    */
-
-  static void PaintFixedSizeCheckMarkBorder(nsIRenderingContext& aRenderingContext,
-                         float aPixelsToTwips, const nsStyleColor& aBackgroundColor);
-
-   /**
-    * Paint a rectangular button. Includes background, string, and focus indicator
-	  * 
-    * @param aPresContext the presentation context
-    * @param aRenderingContext the rendering context
-    * @param aDirtyRect rectangle requiring update
-    * @param aRect  x,y, width, and height of the button in TWIPS
-    * @param aShift if PR_TRUE offset button as if it were pressed
-    * @param aShowFocus if PR_TRUE draw focus rectangle over button
-    * @param aStyleContext style context used for drawing button background 
-    * @param aLabel label for button
-    * @param aForFrame the frame that the scrollbar will be rendered in to
-    */
-
-  static void PaintRectangularButton(nsPresContext* aPresContext,
-                            nsIRenderingContext& aRenderingContext,
-                            const nsRect& aDirtyRect, const nsRect& aRect, 
-                            PRBool aShift, PRBool aShowFocus, PRBool aDisabled,
-							              PRBool aDrawOutline,
-							              nsStyleContext* aOutlineStyle,
-							              nsStyleContext* aFocusStyle,
-                            nsStyleContext* aStyleContext, nsString& aLabel, 
-                            nsIFrame* aForFrame);
-
-  static void StyleChangeReflow(nsPresContext* aPresContext,
-                                nsIFrame* aFrame);
-
-protected:
-  nsFormControlHelper();
-  virtual ~nsFormControlHelper();
-
-};
-
-#endif
-

layout/forms/nsGfxButtonControlFrame.cpp

@@ -56,6 +56,7 @@
 #include "nsGUIEvent.h"
 
 #include "nsNodeInfoManager.h"
+#include "nsIDOMHTMLInputElement.h"
 
 const nscoord kSuggestedNotSet = -1;
 
@@ -108,44 +109,8 @@ NS_IMETHODIMP
 nsGfxButtonControlFrame::CreateAnonymousContent(nsPresContext* aPresContext,
                                                 nsISupportsArray& aChildList)
 {
-  // Get the text from the "value" attribute.
+  nsXPIDLString label;
-  // If it is zero length, set it to a default value (localized)
+  GetLabel(label);
-  nsAutoString initValue;
-  nsFormControlHelper::GetValueAttr(mContent, &initValue);
-  nsXPIDLString value;
-  value.Assign(initValue);
-  if (value.IsEmpty()) {
-    // Generate localized label.
-    // We can't make any assumption as to what the default would be
-    // because the value is localized for non-english platforms, thus
-    // it might not be the string "Reset", "Submit Query", or "Browse..."
-    nsresult rv = GetDefaultLabel(value);
-    NS_ENSURE_SUCCESS(rv, rv);
-  }
-
-  // Compress whitespace out of label if needed.
-  if (!GetStyleText()->WhiteSpaceIsSignificant()) {
-    value.CompressWhitespace();
-  } else if (value.Length() > 2 && value.First() == ' ' &&
-             value.CharAt(value.Length() - 1) == ' ') {
-    // This is a bit of a hack.  The reason this is here is as follows: we now
-    // have default padding on our buttons to make them non-ugly.
-    // Unfortunately, IE-windows does not have such padding, so people will
-    // stick values like " ok " (with the spaces) in the buttons in an attempt
-    // to make them look decent.  Unfortunately, if they do this the button
-    // looks way too big in Mozilla.  Worse yet, if they do this _and_ set a
-    // fixed width for the button we run into trouble because our focus-rect
-    // border/padding and outer border take up 10px of the horizontal button
-    // space or so; the result is that the text is misaligned, even with the
-    // recentering we do in nsHTMLButtonFrame::Reflow.  So to solve this, even
-    // if the whitespace is significant, single leading and trailing _spaces_
-    // (and not other whitespace) are removed.  The proper solution, of
-    // course, is to not have the focus rect painting taking up 6px of
-    // horizontal space. We should do that instead (via XBL form controls or
-    // changing the renderer) and remove this.
-    value.Cut(0, 1);
-    value.Truncate(value.Length() - 1);
-  }
   
   // Add a child text content node for the label
   nsCOMPtr<nsITextContent> labelContent;
@@ -154,7 +119,7 @@ nsGfxButtonControlFrame::CreateAnonymousContent(nsPresContext* aPresContext,
   if (labelContent) {
     // set the value of the text node and add it to the child list
     mTextContent.swap(labelContent);
-    mTextContent->SetText(value, PR_TRUE);
+    mTextContent->SetText(label, PR_FALSE);
     aChildList.AppendElement(mTextContent);
   }
   return NS_OK;
@@ -263,6 +228,52 @@ nsGfxButtonControlFrame::GetDefaultLabel(nsXPIDLString& aString)
                                             prop, aString);
 }
 
+nsresult
+nsGfxButtonControlFrame::GetLabel(nsXPIDLString& aLabel)
+{
+  // Get the text from the "value" property on our content.
+  // If it comes out empty, set it to a default value (localized)
+  nsCOMPtr<nsIDOMHTMLInputElement> elt = do_QueryInterface(mContent);
+  nsresult rv = NS_OK;
+  if (elt) {
+    rv = elt->GetValue(aLabel);
+  }
+  if (NS_FAILED(rv) || aLabel.IsEmpty()) {
+    // Generate localized label.
+    // We can't make any assumption as to what the default would be
+    // because the value is localized for non-english platforms, thus
+    // it might not be the string "Reset", "Submit Query", or "Browse..."
+    rv = GetDefaultLabel(aLabel);
+    NS_ENSURE_SUCCESS(rv, rv);
+  }
+
+    // Compress whitespace out of label if needed.
+  if (!GetStyleText()->WhiteSpaceIsSignificant()) {
+    aLabel.CompressWhitespace();
+  } else if (aLabel.Length() > 2 && aLabel.First() == ' ' &&
+             aLabel.CharAt(aLabel.Length() - 1) == ' ') {
+    // This is a bit of a hack.  The reason this is here is as follows: we now
+    // have default padding on our buttons to make them non-ugly.
+    // Unfortunately, IE-windows does not have such padding, so people will
+    // stick values like " ok " (with the spaces) in the buttons in an attempt
+    // to make them look decent.  Unfortunately, if they do this the button
+    // looks way too big in Mozilla.  Worse yet, if they do this _and_ set a
+    // fixed width for the button we run into trouble because our focus-rect
+    // border/padding and outer border take up 10px of the horizontal button
+    // space or so; the result is that the text is misaligned, even with the
+    // recentering we do in nsHTMLButtonFrame::Reflow.  So to solve this, even
+    // if the whitespace is significant, single leading and trailing _spaces_
+    // (and not other whitespace) are removed.  The proper solution, of
+    // course, is to not have the focus rect painting taking up 6px of
+    // horizontal space. We should do that instead (via XBL form controls or
+    // changing the renderer) and remove this.
+    aLabel.Cut(0, 1);
+    aLabel.Truncate(aLabel.Length() - 1);
+  }
+
+  return NS_OK;
+}
+
 NS_IMETHODIMP
 nsGfxButtonControlFrame::AttributeChanged(PRInt32         aNameSpaceID,
                                           nsIAtom*        aAttribute,
@@ -272,10 +283,12 @@ nsGfxButtonControlFrame::AttributeChanged(PRInt32         aNameSpaceID,
 
   // If the value attribute is set, update the text of the label
   if (nsHTMLAtoms::value == aAttribute) {
-    nsAutoString value;
     if (mTextContent && mContent) {
-      mContent->GetAttr(kNameSpaceID_None, nsHTMLAtoms::value, value);
+      nsXPIDLString label;
-      mTextContent->SetText(value, PR_TRUE);
+      rv = GetLabel(label);
+      NS_ENSURE_SUCCESS(rv, rv);
+    
+      mTextContent->SetText(label, PR_TRUE);
     } else {
       rv = NS_ERROR_UNEXPECTED;
     }

layout/forms/nsGfxButtonControlFrame.h

@@ -106,6 +106,8 @@ public:
 protected:
   nsresult GetDefaultLabel(nsXPIDLString& aLabel);
 
+  nsresult GetLabel(nsXPIDLString& aLabel);
+
   PRBool IsFileBrowseButton(PRInt32 type); // Browse button of file input
 
 private: