/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- * * The contents of this file are subject to the Netscape 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/NPL/ * * 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 Netscape are * Copyright (C) 1998 Netscape Communications Corporation. All * Rights Reserved. * * Contributor(s): */ #include "nsCOMPtr.h" #include "nsFormControlHelper.h" #include "nsHTMLParts.h" #include "nsIHTMLContent.h" #include "nsIRenderingContext.h" #include "nsIPresShell.h" #include "nsIPresContext.h" #include "nsIStyleContext.h" #include "nsLeafFrame.h" #include "nsCSSRendering.h" #include "nsHTMLIIDs.h" #include "nsIView.h" #include "nsIViewManager.h" #include "nsCoord.h" #include "nsWidgetsCID.h" #include "nsViewsCID.h" #include "nsIComponentManager.h" #include "nsGUIEvent.h" #include "nsDOMEvent.h" #include "nsIFontMetrics.h" #include "nsIFormControl.h" #include "nsIDeviceContext.h" #include "nsHTMLAtoms.h" #include "nsIButton.h" // remove this when GetCID is pure virtual #include "nsICheckButton.h" //remove this #include "nsITextWidget.h" //remove this #include "nsISupports.h" #include "nsStyleConsts.h" #include "nsUnitConversion.h" #include "nsStyleUtil.h" #include "nsFormFrame.h" #include "nsIContent.h" #include "nsStyleUtil.h" #include "nsINameSpaceManager.h" #include "nsIDOMHTMLInputElement.h" // Needed for Localization #include "nsIServiceManager.h" #include "nsIIOService.h" #include "nsIURI.h" #include "nsIStringBundle.h" #include "nsITextContent.h" #include "nsISupportsArray.h" #include "nsXPIDLString.h" static NS_DEFINE_CID(kIOServiceCID, NS_IOSERVICE_CID); static NS_DEFINE_CID(kStringBundleServiceCID, NS_STRINGBUNDLESERVICE_CID); // done I10N static NS_DEFINE_IID(kIWidgetIID, NS_IWIDGET_IID); static NS_DEFINE_IID(kIFormControlIID, NS_IFORMCONTROL_IID); static NS_DEFINE_IID(kIFormControlFrameIID, NS_IFORMCONTROLFRAME_IID); static NS_DEFINE_IID(kISupportsIID, NS_ISUPPORTS_IID); static NS_DEFINE_IID(kViewCID, NS_VIEW_CID); static NS_DEFINE_IID(kIViewIID, NS_IVIEW_IID); static NS_DEFINE_IID(kIFrameIID, NS_IFRAME_IID); static NS_DEFINE_IID(kIDOMHTMLInputElementIID, NS_IDOMHTMLINPUTELEMENT_IID); // For figuring out the "WRAP" property #define kTextControl_Wrap_Soft "SOFT" #define kTextControl_Wrap_Virtual "VIRTUAL" // "virtual" is a synonym for "soft" #define kTextControl_Wrap_Hard "HARD" #define kTextControl_Wrap_Physical "PHYSICAL" // "physical" is a synonym for "hard" #define kTextControl_Wrap_Off "OFF" MOZ_DECL_CTOR_COUNTER(nsFormControlHelper); nsFormControlHelper::nsFormControlHelper() { MOZ_COUNT_CTOR(nsFormControlHelper); } nsFormControlHelper::~nsFormControlHelper() { MOZ_COUNT_DTOR(nsFormControlHelper); } void nsFormControlHelper::ForceDrawFrame(nsIPresContext* aPresContext, nsIFrame * aFrame) { if (aFrame == nsnull) { return; } nsRect rect; nsIView * view; nsPoint pnt; aFrame->GetOffsetFromView(aPresContext, pnt, &view); aFrame->GetRect(rect); rect.x = pnt.x; rect.y = pnt.y; if (view != nsnull) { nsIViewManager * viewMgr; view->GetViewManager(viewMgr); if (viewMgr != nsnull) { viewMgr->UpdateView(view, rect, NS_VMREFRESH_NO_SYNC); NS_RELEASE(viewMgr); } } } void nsFormControlHelper::PlatformToDOMLineBreaks(nsString &aString) { // Windows linebreaks: Map CRLF to LF: aString.ReplaceSubstring(NS_ConvertASCIItoUCS2("\r\n"), NS_ConvertASCIItoUCS2("\n")); // Mac linebreaks: Map any remaining CR to LF: aString.ReplaceSubstring(NS_ConvertASCIItoUCS2("\r"), NS_ConvertASCIItoUCS2("\n")); } PRBool nsFormControlHelper::GetBool(const nsAReadableString& aValue) { return aValue.Equals(NS_STRING_TRUE); } void nsFormControlHelper::GetBoolString(const PRBool aValue, nsAWritableString& aResult) { if (aValue) aResult.Assign(NS_STRING_TRUE); else aResult.Assign(NS_STRING_FALSE); } nsCompatibility nsFormControlHelper::GetRepChars(nsIPresContext* aPresContext, char& char1, char& char2) { nsCompatibility mode; aPresContext->GetCompatibilityMode(&mode); if (eCompatibility_Standard == mode) { char1 = 'W'; char2 = 'w'; return eCompatibility_Standard; } else { char1 = 'W'; char2 = 'w'; return eCompatibility_NavQuirks; } } nsresult nsFormControlHelper::GetFrameFontFM(nsIPresContext* aPresContext, nsIFormControlFrame * aFrame, nsIFontMetrics** aFontMet) { // Initialize with default font const nsFont * font = nsnull; // Get frame font if (NS_SUCCEEDED(aFrame->GetFont(aPresContext, font))) { nsCOMPtr deviceContext; aPresContext->GetDeviceContext(getter_AddRefs(deviceContext)); NS_ASSERTION(deviceContext, "Couldn't get the device context"); if (font != nsnull) { // Get font metrics return deviceContext->GetMetricsFor(*font, *aFontMet); } } return NS_ERROR_FAILURE; } nsresult nsFormControlHelper::GetWrapProperty(nsIContent * aContent, nsString &aOutValue) { aOutValue.SetLength(0); nsresult result = NS_CONTENT_ATTR_NOT_THERE; nsIHTMLContent* content = nsnull; aContent->QueryInterface(kIHTMLContentIID, (void**) &content); if (nsnull != content) { nsHTMLValue value; result = content->GetHTMLAttribute(nsHTMLAtoms::wrap, value); if (eHTMLUnit_String == value.GetUnit()) { value.GetStringValue(aOutValue); } NS_RELEASE(content); } return result; } nsresult nsFormControlHelper::GetWrapPropertyEnum(nsIContent * aContent, nsHTMLTextWrap& aWrapProp) { nsString wrap; aWrapProp = eHTMLTextWrap_Off; // the default nsresult result = GetWrapProperty(aContent, wrap); if (NS_CONTENT_ATTR_NOT_THERE != result) { nsAutoString wrapHard; wrapHard.AssignWithConversion(kTextControl_Wrap_Hard); nsAutoString wrapPhysical; wrapPhysical.AssignWithConversion(kTextControl_Wrap_Physical); if (wrap.EqualsIgnoreCase(wrapHard) || wrap.EqualsIgnoreCase(wrapPhysical)) { aWrapProp = eHTMLTextWrap_Hard; return result; } nsAutoString wrapSoft; wrapSoft.AssignWithConversion(kTextControl_Wrap_Soft); nsAutoString wrapVirtual; wrapVirtual.AssignWithConversion(kTextControl_Wrap_Virtual); if (wrap.EqualsIgnoreCase(wrapSoft) || wrap.EqualsIgnoreCase(wrapVirtual)) { aWrapProp = eHTMLTextWrap_Soft; return result; } } return result; } nscoord nsFormControlHelper::CalcNavQuirkSizing(nsIPresContext* aPresContext, nsIRenderingContext* aRendContext, nsIFontMetrics* aFontMet, nsIFormControlFrame* aFrame, nsInputDimensionSpec& aSpec, nsSize& aSize) { float p2t; float t2p; aPresContext->GetPixelsToTwips(&p2t); aPresContext->GetTwipsToPixels(&t2p); nscoord ascent; nscoord descent; nscoord maxCharWidth; aFontMet->GetMaxAscent(ascent); aFontMet->GetMaxDescent(descent); aFontMet->GetMaxAdvance(maxCharWidth); ascent = NSToCoordRound(ascent * t2p); descent = NSToCoordRound(descent * t2p); maxCharWidth = NSToCoordRound(maxCharWidth * t2p); char char1, char2; GetRepChars(aPresContext, char1, char2); nscoord char1Width, char2Width; aRendContext->GetWidth(char1, char1Width); aRendContext->GetWidth(char2, char2Width); char1Width = NSToCoordRound(char1Width * t2p); char2Width = NSToCoordRound(char2Width * t2p); // Nav Quirk Calculation for TextField PRInt32 type; aFrame->GetType(&type); nscoord width; nscoord hgt; nscoord height; nscoord average = 0; if ((NS_FORM_INPUT_TEXT == type) || (NS_FORM_INPUT_PASSWORD == type)) { average = (char1Width + char2Width) / 2; width = maxCharWidth; hgt = ascent + descent; height = hgt + (hgt / 2); width += aSpec.mColDefaultSize * average; } else if (NS_FORM_TEXTAREA == type) { nscoord lines = 1; nscoord scrollbarWidth = 0; nscoord scrollbarHeight = 0; float scale; nsCOMPtr dx; aPresContext->GetDeviceContext(getter_AddRefs(dx)); if (dx) { float sbWidth; float sbHeight; dx->GetCanonicalPixelScale(scale); dx->GetScrollBarDimensions(sbWidth, sbHeight); scrollbarWidth = PRInt32(sbWidth * scale); scrollbarHeight = PRInt32(sbHeight * scale); scrollbarWidth = NSToCoordRound(scrollbarWidth * t2p); scrollbarHeight = NSToCoordRound(scrollbarHeight * t2p); } else { NS_ASSERTION(0, "Couldn't get the device context"); scrollbarWidth = 16; scrollbarHeight = 16; } nsIContent * content; aFrame->GetFormContent(content); nsCOMPtr hContent(do_QueryInterface(content)); // determine the height nsHTMLValue rowAttr; nsresult rowStatus = NS_CONTENT_ATTR_NOT_THERE; if (nsnull != aSpec.mRowSizeAttr) { rowStatus = hContent->GetHTMLAttribute(aSpec.mRowSizeAttr, rowAttr); } if (NS_CONTENT_ATTR_HAS_VALUE == rowStatus) { // row attr will provide height PRInt32 rowAttrInt = ((rowAttr.GetUnit() == eHTMLUnit_Pixel) ? rowAttr.GetPixelValue() : rowAttr.GetIntValue()); lines = (rowAttrInt > 0) ? rowAttrInt : 1; } else { lines = aSpec.mRowDefaultSize; } average = (char1Width + char2Width) / 2; width = ((aSpec.mColDefaultSize + 1) * average) + scrollbarWidth; hgt = ascent + descent; height = (lines + 1) * hgt; // then if not word wrapping nsHTMLTextWrap wrapProp; nsFormControlHelper::GetWrapPropertyEnum(content, wrapProp); if (wrapProp == eHTMLTextWrap_Off) { height += scrollbarHeight; } NS_RELEASE(content); } else if (NS_FORM_INPUT_BUTTON == type || NS_FORM_INPUT_SUBMIT == type || NS_FORM_INPUT_RESET == type) { GetTextSize(aPresContext, aFrame, *aSpec.mColDefaultValue, aSize, aRendContext); aSize.width = NSToCoordRound(aSize.width * t2p); aSize.height = NSToCoordRound(aSize.height * t2p); width = 3 * aSize.width / 2; height = 3 * aSize.height / 2; } else if (NS_FORM_INPUT_HIDDEN == type) { width = 0; height = 0; } else { width = 0; height = 0; } #ifdef DEBUG_rodsXXXX printf("********* Nav Quirks: %d,%d max:%d average:%d ascent:%d descent:%d\n", width, height, maxCharWidth, average, ascent, descent); #endif aSize.width = NSIntPixelsToTwips(width, p2t); aSize.height = NSIntPixelsToTwips(height, p2t); average = NSIntPixelsToTwips(average, p2t); return average; } nscoord nsFormControlHelper::GetTextSize(nsIPresContext* aPresContext, nsIFormControlFrame* aFrame, const nsString& aString, nsSize& aSize, nsIRenderingContext *aRendContext) { nsCOMPtr fontMet; nsresult res = GetFrameFontFM(aPresContext, aFrame, getter_AddRefs(fontMet)); if (NS_SUCCEEDED(res) && fontMet) { aRendContext->SetFont(fontMet); // measure string aRendContext->GetWidth(aString, aSize.width); fontMet->GetHeight(aSize.height); } else { NS_ASSERTION(PR_FALSE, "Couldn't get Font Metrics"); aSize.width = 0; } char char1, char2; nsCompatibility mode = GetRepChars(aPresContext, char1, char2); nscoord char1Width, char2Width; aRendContext->GetWidth(char1, char1Width); aRendContext->GetWidth(char2, char2Width); if (eCompatibility_Standard == mode) { return ((char1Width + char2Width) / 2) + 1; } else { return (char1Width + char2Width) / 2; } } nscoord nsFormControlHelper::GetTextSize(nsIPresContext* aPresContext, nsIFormControlFrame* aFrame, PRInt32 aNumChars, nsSize& aSize, nsIRenderingContext *aRendContext) { nsAutoString val; char char1, char2; GetRepChars(aPresContext, char1, char2); int i; for (i = 0; i < aNumChars; i+=2) { val.AppendWithConversion(char1); } for (i = 1; i < aNumChars; i+=2) { val.AppendWithConversion(char2); } return GetTextSize(aPresContext, aFrame, val, aSize, aRendContext); } PRInt32 nsFormControlHelper::CalculateSize (nsIPresContext* aPresContext, nsIRenderingContext* aRendContext, nsIFormControlFrame* aFrame, const nsSize& aCSSSize, nsInputDimensionSpec& aSpec, nsSize& aDesiredSize, nsSize& aMinSize, PRBool& aWidthExplicit, PRBool& aHeightExplicit, nscoord& aRowHeight) { nscoord charWidth = 0; PRInt32 numRows = ATTR_NOTSET; aWidthExplicit = PR_FALSE; aHeightExplicit = PR_FALSE; aDesiredSize.width = CSS_NOTSET; aDesiredSize.height = CSS_NOTSET; nsIContent* iContent = nsnull; aFrame->GetFormContent((nsIContent*&) iContent); if (!iContent) { return 0; } nsIHTMLContent* hContent = nsnull; nsresult result = iContent->QueryInterface(kIHTMLContentIID, (void**)&hContent); if ((NS_OK != result) || !hContent) { NS_RELEASE(iContent); return 0; } nsAutoString valAttr; nsresult valStatus = NS_CONTENT_ATTR_NOT_THERE; if (nsnull != aSpec.mColValueAttr) { valStatus = hContent->GetAttribute(kNameSpaceID_HTML, aSpec.mColValueAttr, valAttr); } nsHTMLValue colAttr; nsresult colStatus = NS_CONTENT_ATTR_NOT_THERE; if (nsnull != aSpec.mColSizeAttr) { colStatus = hContent->GetHTMLAttribute(aSpec.mColSizeAttr, colAttr); } float p2t; aPresContext->GetScaledPixelsToTwips(&p2t); #if 0 // determine if it is percentage based width, height PRBool percentageWidth = PR_FALSE; PRBool percentageHeight = PR_FALSE; const nsStylePosition* pos; nsIFrame* iFrame = nsnull; nsresult rv = aFrame->QueryInterface(kIFrameIID, (void**)&iFrame); if ((NS_OK == rv) && (nsnull != iFrame)) { iFrame->GetStyleData(eStyleStruct_Position, (const nsStyleStruct*&)pos); if (eStyleUnit_Percent == pos->mWidth.GetUnit()) { percentageWidth = PR_TRUE; } if (eStyleUnit_Percent == pos->mWidth.GetUnit()) { percentageHeight = PR_TRUE; } } #endif nsCompatibility qMode; aPresContext->GetCompatibilityMode(&qMode); // determine the width, char height, row height if (NS_CONTENT_ATTR_HAS_VALUE == colStatus) { // col attr will provide width PRInt32 col = ((colAttr.GetUnit() == eHTMLUnit_Pixel) ? colAttr.GetPixelValue() : colAttr.GetIntValue()); if (aSpec.mColSizeAttrInPixels) { // need to set charWidth and aDesiredSize.height charWidth = GetTextSize(aPresContext, aFrame, 1, aDesiredSize, aRendContext); col = (col <= 0) ? 15 : col; // XXX why a default of 15 pixels, why hide it // XXX this conflicts with a default of 20 found in nsGfxTextControlFrame. aDesiredSize.width = NSIntPixelsToTwips(col, p2t); } else { col = (col <= 0) ? 1 : col; // XXX why a default of 1 char, why hide it if (eCompatibility_NavQuirks == qMode) { nsCOMPtr fontMet; nsresult res = GetFrameFontFM(aPresContext, aFrame, getter_AddRefs(fontMet)); if (NS_SUCCEEDED(res) && fontMet) { aRendContext->SetFont(fontMet); aSpec.mColDefaultSize = col; charWidth = CalcNavQuirkSizing(aPresContext, aRendContext, fontMet, aFrame, aSpec, aDesiredSize); } else { charWidth = GetTextSize(aPresContext, aFrame, col, aDesiredSize, aRendContext); } } } if (eCompatibility_Standard == qMode) { if (aSpec.mColSizeAttrInPixels) { aWidthExplicit = PR_TRUE; } } aMinSize.width = aDesiredSize.width; } else { // set aDesiredSize for height calculation below. CSS may override width if (NS_CONTENT_ATTR_HAS_VALUE == valStatus) { // use width of initial value charWidth = GetTextSize(aPresContext, aFrame, valAttr, aDesiredSize, aRendContext); } else if (aSpec.mColDefaultValue) { // use default value charWidth = GetTextSize(aPresContext, aFrame, *aSpec.mColDefaultValue, aDesiredSize, aRendContext); } else if (aSpec.mColDefaultSizeInPixels) { // use default width in pixels charWidth = GetTextSize(aPresContext, aFrame, 1, aDesiredSize, aRendContext); aDesiredSize.width = aSpec.mColDefaultSize; } else { // use default width in num characters if (eCompatibility_NavQuirks == qMode) { nsCOMPtr fontMet; nsresult res = GetFrameFontFM(aPresContext, aFrame, getter_AddRefs(fontMet)); if (NS_SUCCEEDED(res) && fontMet) { aRendContext->SetFont(fontMet); // this passes in a charWidth = CalcNavQuirkSizing(aPresContext, aRendContext, fontMet, aFrame, aSpec, aDesiredSize); } else { NS_ASSERTION(fontMet, "Couldn't get Font Metrics"); aDesiredSize.width = 300; // arbitrary values aDesiredSize.width = 1500; } } else { charWidth = GetTextSize(aPresContext, aFrame, aSpec.mColDefaultSize, aDesiredSize, aRendContext); } } aMinSize.width = aDesiredSize.width; if (CSS_NOTSET != aCSSSize.width) { // css provides width NS_ASSERTION(aCSSSize.width >= 0, "form control's computed width is < 0"); if (NS_INTRINSICSIZE != aCSSSize.width) { aDesiredSize.width = PR_MAX(aDesiredSize.width,aCSSSize.width); aWidthExplicit = PR_TRUE; } } } aRowHeight = aDesiredSize.height; aMinSize.height = aDesiredSize.height; // determine the height if (eCompatibility_Standard == qMode) { nsHTMLValue rowAttr; nsresult rowStatus = NS_CONTENT_ATTR_NOT_THERE; if (nsnull != aSpec.mRowSizeAttr) { rowStatus = hContent->GetHTMLAttribute(aSpec.mRowSizeAttr, rowAttr); } if (NS_CONTENT_ATTR_HAS_VALUE == rowStatus) { // row attr will provide height PRInt32 rowAttrInt = ((rowAttr.GetUnit() == eHTMLUnit_Pixel) ? rowAttr.GetPixelValue() : rowAttr.GetIntValue()); numRows = (rowAttrInt > 0) ? rowAttrInt : 1; aDesiredSize.height = aDesiredSize.height * numRows; } else { aDesiredSize.height = aDesiredSize.height * aSpec.mRowDefaultSize; if (CSS_NOTSET != aCSSSize.height) { // css provides height NS_ASSERTION(aCSSSize.height > 0, "form control's computed height is <= 0"); if (NS_INTRINSICSIZE != aCSSSize.height) { aDesiredSize.height = PR_MAX(aDesiredSize.height,aCSSSize.height); aHeightExplicit = PR_TRUE; } } } } nsWidgetRendering mode; aPresContext->GetWidgetRenderingMode(&mode); // only add in padding if we are not Gfx, or if we're a Gfx text widget PRBool requiresWidget = PR_FALSE; aFrame->RequiresWidget(requiresWidget); PRInt32 type; aFrame->GetType(&type); if (PR_TRUE == requiresWidget || eWidgetRendering_Native == mode || type==NS_FORM_INPUT_TEXT || type==NS_FORM_TEXTAREA || type==NS_FORM_INPUT_PASSWORD) { if (!aWidthExplicit && mode == eWidgetRendering_Native) { //if (!aWidthExplicit) { PRInt32 hPadding = (2 * aFrame->GetHorizontalInsidePadding(aPresContext, p2t, aDesiredSize.width, charWidth)); aDesiredSize.width += hPadding; aMinSize.width += hPadding; } if (!aHeightExplicit && mode == eWidgetRendering_Native) { //if (!aHeightExplicit) { PRInt32 vPadding = (2 * aFrame->GetVerticalInsidePadding(aPresContext, p2t, aRowHeight)); aDesiredSize.height += vPadding; aMinSize.height += vPadding; } } NS_RELEASE(hContent); if (ATTR_NOTSET == numRows) { numRows = (aRowHeight > 0) ? (aDesiredSize.height / aRowHeight) : 0; } NS_RELEASE(iContent); return numRows; } // this handles all of the input types rather than having them do it. nsresult nsFormControlHelper::GetFont(nsIFormControlFrame * aFormFrame, nsIPresContext* aPresContext, nsIStyleContext * aStyleContext, const nsFont*& aFont) { const nsStyleFont* styleFont = (const nsStyleFont*)aStyleContext->GetStyleData(eStyleStruct_Font); nsWidgetRendering m; aPresContext->GetWidgetRenderingMode(&m); // only add in padding if we are not Gfx, excluding the text widgets PRBool requiresWidget = PR_FALSE; aFormFrame->RequiresWidget(requiresWidget); PRInt32 type; aFormFrame->GetType(&type); if (type!=NS_FORM_INPUT_TEXT && type!=NS_FORM_TEXTAREA && type!=NS_FORM_INPUT_PASSWORD) { if (PR_TRUE != requiresWidget && eWidgetRendering_Gfx == m) { aFont = &styleFont->mFont; return NS_OK; } } nsCompatibility mode; aPresContext->GetCompatibilityMode(&mode); if (eCompatibility_Standard == mode) { aFont = &styleFont->mFont; return NS_OK; } switch (type) { case NS_FORM_INPUT_TEXT: case NS_FORM_TEXTAREA: case NS_FORM_INPUT_PASSWORD: aFont = &styleFont->mFont; break; case NS_FORM_INPUT_BUTTON: case NS_FORM_INPUT_SUBMIT: case NS_FORM_INPUT_RESET: case NS_FORM_SELECT: NS_ASSERTION(0, "getting the font here has been predicated"); #if 0 if ((styleFont->mFlags & NS_STYLE_FONT_FACE_EXPLICIT) || (styleFont->mFlags & NS_STYLE_FONT_SIZE_EXPLICIT)) { aFont = styleFont->mFixedFont; aFont.weight = NS_FONT_WEIGHT_NORMAL; // always normal weight aFont.size = styleFont->mFont.size; // normal font size if (0 == (styleFont->mFlags & NS_STYLE_FONT_FACE_EXPLICIT)) { aFont.name = "Arial"; // XXX windows specific font } } else { // use arial, scaled down one HTML size // italics, decoration & variant(?) get used aFont = styleFont->mFont; aFont.name = "Arial"; // XXX windows specific font aFont.weight = NS_FONT_WEIGHT_NORMAL; const nsFont& normal = aPresContext->GetDefaultFontDeprecated(); PRInt32 scaler; aPresContext->GetFontScaler(&scaler); float scaleFactor = nsStyleUtil::GetScalingFactor(scaler); PRInt32 fontIndex = nsStyleUtil::FindNextSmallerFontSize(aFont.size, (PRInt32)normal.size, scaleFactor, aPresContext); aFont.size = nsStyleUtil::CalcFontPointSize(fontIndex, (PRInt32)normal.size, scaleFactor, aPresContext); } #endif break; } return NS_OK; } // //------------------------------------------------------------------------------------- // Utility methods for rendering Form Elements using GFX //------------------------------------------------------------------------------------- // void nsFormControlHelper::PaintLine(nsIRenderingContext& aRenderingContext, nscoord aSX, nscoord aSY, nscoord aEX, nscoord aEY, PRBool aHorz, nscoord aWidth, nscoord aOnePixel) { nsPoint p[5]; if (aHorz) { aEX++; p[0].x = nscoord(float(aSX)*aOnePixel); p[0].y = nscoord(float(aSY)*aOnePixel); p[1].x = nscoord(float(aEX)*aOnePixel); p[1].y = nscoord(float(aEY)*aOnePixel); p[2].x = nscoord(float(aEX)*aOnePixel); p[2].y = nscoord(float(aEY+1)*aOnePixel); p[3].x = nscoord(float(aSX)*aOnePixel); p[3].y = nscoord(float(aSY+1)*aOnePixel); p[4].x = nscoord(float(aSX)*aOnePixel); p[4].y = nscoord(float(aSY)*aOnePixel); } else { aEY++; p[0].x = nscoord(float(aSX)*aOnePixel); p[0].y = nscoord(float(aSY)*aOnePixel); p[1].x = nscoord(float(aEX)*aOnePixel); p[1].y = nscoord(float(aEY)*aOnePixel); p[2].x = nscoord(float(aEX+1)*aOnePixel); p[2].y = nscoord(float(aEY)*aOnePixel); p[3].x = nscoord(float(aSX+1)*aOnePixel); p[3].y = nscoord(float(aSY)*aOnePixel); p[4].x = nscoord(float(aSX)*aOnePixel); p[4].y = nscoord(float(aSY)*aOnePixel); } aRenderingContext.FillPolygon(p, 5); } //--------------------------------------------------------------------------- //--------------------------------------------------------------------------- //--------------------------------------------------------------------------- // Offset for arrow centerpoint static const nscoord nsArrowOffsetX = 3; static const nscoord nsArrowOffsetY = 3; static nscoord nsArrowRightPoints[] = {0, 0, 0, 6, 6, 3 }; static nscoord nsArrowLeftPoints[] = {0, 3, 6, 0, 6, 6 }; static nscoord nsArrowUpPoints[] = {3, 0, 6, 6, 0, 6 }; static nscoord nsArrowDownPoints[] = {0, 0, 3, 6, 6, 0 }; //--------------------------------------------------------------------------- void nsFormControlHelper::SetupPoints(PRUint32 aNumberOfPoints, nscoord* aPoints, nsPoint* aPolygon, nscoord aScaleFactor, nscoord aX, nscoord aY, nscoord aCenterX, nscoord aCenterY) { const nscoord offsetX = aCenterX * aScaleFactor; const nscoord offsetY = aCenterY * aScaleFactor; PRUint32 i = 0; PRUint32 count = 0; for (i = 0; i < aNumberOfPoints; i++) { aPolygon[i].x = (aPoints[count] * aScaleFactor) + aX - offsetX; count++; aPolygon[i].y = (aPoints[count] * aScaleFactor) + aY - offsetY; count++; } } //--------------------------------------------------------------------------- void nsFormControlHelper::PaintArrowGlyph(nsIRenderingContext& aRenderingContext, nscoord aSX, nscoord aSY, nsArrowDirection aArrowDirection, nscoord aOnePixel) { nsPoint polygon[3]; switch(aArrowDirection) { case eArrowDirection_Left: SetupPoints(3, nsArrowLeftPoints, polygon, aOnePixel, aSX, aSY, nsArrowOffsetX, nsArrowOffsetY); break; case eArrowDirection_Right: SetupPoints(3, nsArrowRightPoints, polygon, aOnePixel, aSX, aSY, nsArrowOffsetX, nsArrowOffsetY); break; case eArrowDirection_Up: SetupPoints(3, nsArrowUpPoints, polygon, aOnePixel, aSX, aSY, nsArrowOffsetX, nsArrowOffsetY); break; case eArrowDirection_Down: SetupPoints(3, nsArrowDownPoints, polygon, aOnePixel, aSX, aSY, nsArrowOffsetX, nsArrowOffsetY); break; } aRenderingContext.FillPolygon(polygon, 3); } //--------------------------------------------------------------------------- void nsFormControlHelper::PaintArrow(nsArrowDirection aArrowDirection, nsIRenderingContext& aRenderingContext, nsIPresContext* aPresContext, const nsRect& aDirtyRect, nsRect& aRect, nscoord aOnePixel, nsIStyleContext* aArrowStyle, const nsStyleSpacing& aSpacing, nsIFrame* aForFrame, nsRect& aFrameRect) { // Draw border using CSS const nsStyleColor* color = (const nsStyleColor*) aArrowStyle->GetStyleData(eStyleStruct_Color); nsCSSRendering::PaintBackground(aPresContext, aRenderingContext, aForFrame, aDirtyRect, aRect, *color, aSpacing, 0, 0); nsCSSRendering::PaintBorder(aPresContext, aRenderingContext, aForFrame, aDirtyRect, aRect, aSpacing, aArrowStyle, 0); // Draw the glyph in black aRenderingContext.SetColor(NS_RGB(0, 0, 0)); // Draw arrow centered in the rectangle PaintArrowGlyph(aRenderingContext, aRect.x + (aRect.width / 2), aRect.y + (aRect.height / 2), aArrowDirection, aOnePixel); } //--------------------------------------------------------------------------- void nsFormControlHelper::PaintScrollbar(nsIRenderingContext& aRenderingContext, nsIPresContext* aPresContext, const nsRect& aDirtyRect, nsRect& aRect, PRBool aHorizontal, nscoord aOnePixel, nsIStyleContext* aScrollbarStyleContext, nsIStyleContext* aScrollbarArrowStyleContext, nsIFrame* aForFrame, nsRect& aFrameRect) { // Get the Scrollbar's Style structs const nsStyleColor* scrollbarColor = (const nsStyleColor*)aScrollbarStyleContext->GetStyleData(eStyleStruct_Color); // Get the Scrollbar's Arrow's Style structs const nsStyleSpacing* arrowSpacing = (const nsStyleSpacing*)aScrollbarArrowStyleContext->GetStyleData(eStyleStruct_Spacing); const nsStyleColor* arrowColor = (const nsStyleColor*)aScrollbarArrowStyleContext->GetStyleData(eStyleStruct_Color); // Paint background for scrollbar nsCSSRendering::PaintBackground(aPresContext, aRenderingContext, aForFrame, aDirtyRect, aRect, *scrollbarColor, *arrowSpacing, 0, 0); if (PR_TRUE == aHorizontal) { // Draw horizontal Arrow nscoord arrowWidth = aRect.height; nsRect arrowLeftRect(aRect.x, aRect.y, arrowWidth, arrowWidth); PaintArrow(eArrowDirection_Left,aRenderingContext,aPresContext, aDirtyRect, arrowLeftRect,aOnePixel, aScrollbarArrowStyleContext, *arrowSpacing, aForFrame, aFrameRect); nsRect thumbRect(aRect.x+arrowWidth, aRect.y, arrowWidth, arrowWidth); nsCSSRendering::PaintBackground(aPresContext, aRenderingContext, aForFrame, aDirtyRect, thumbRect, *arrowColor, *arrowSpacing, 0, 0); nsCSSRendering::PaintBorder(aPresContext, aRenderingContext, aForFrame, aDirtyRect, thumbRect, *arrowSpacing,aScrollbarArrowStyleContext, 0); nsRect arrowRightRect(aRect.x + (aRect.width - arrowWidth), aRect.y, arrowWidth, arrowWidth); PaintArrow(eArrowDirection_Right,aRenderingContext,aPresContext, aDirtyRect, arrowRightRect,aOnePixel, aScrollbarArrowStyleContext, *arrowSpacing, aForFrame, aFrameRect); } else { // Paint vertical arrow nscoord arrowHeight = aRect.width; nsRect arrowUpRect(aRect.x, aRect.y, arrowHeight, arrowHeight); PaintArrow(eArrowDirection_Up,aRenderingContext,aPresContext, aDirtyRect, arrowUpRect,aOnePixel, aScrollbarArrowStyleContext, *arrowSpacing, aForFrame, aFrameRect); nsRect thumbRect(aRect.x, aRect.y+arrowHeight, arrowHeight, arrowHeight); nsCSSRendering::PaintBackground(aPresContext, aRenderingContext, aForFrame, aDirtyRect, thumbRect, *arrowColor, *arrowSpacing, 0, 0); nsCSSRendering::PaintBorder(aPresContext, aRenderingContext, aForFrame, aDirtyRect, thumbRect, *arrowSpacing,aScrollbarArrowStyleContext, 0); nsRect arrowDownRect(aRect.x, aRect.y + (aRect.height - arrowHeight), arrowHeight, arrowHeight); PaintArrow(eArrowDirection_Down,aRenderingContext,aPresContext, aDirtyRect, arrowDownRect,aOnePixel, aScrollbarArrowStyleContext, *arrowSpacing, aForFrame, aFrameRect); } } void nsFormControlHelper::PaintFixedSizeCheckMark(nsIRenderingContext& aRenderingContext, float aPixelsToTwips) { // Offsets to x,y location, These offsets are used to place the checkmark in the middle // of it's 12X12 pixel box. const PRUint32 ox = 3; const PRUint32 oy = 3; nscoord onePixel = NSIntPixelsToTwips(1, aPixelsToTwips); // Draw checkmark using a series of rectangles. This builds an replica of the // way the checkmark looks under Windows. Using a polygon does not correctly // represent a checkmark under Windows. This is due to round-off error in the // Twips to Pixel conversions. PaintLine(aRenderingContext, 0 + ox, 2 + oy, 0 + ox, 4 + oy, PR_FALSE, 1, onePixel); PaintLine(aRenderingContext, 1 + ox, 3 + oy, 1 + ox, 5 + oy, PR_FALSE, 1, onePixel); PaintLine(aRenderingContext, 2 + ox, 4 + oy, 2 + ox, 6 + oy, PR_FALSE, 1, onePixel); PaintLine(aRenderingContext, 3 + ox, 3 + oy, 3 + ox, 5 + oy, PR_FALSE, 1, onePixel); PaintLine(aRenderingContext, 4 + ox, 2 + oy, 4 + ox, 4 + oy, PR_FALSE, 1, onePixel); PaintLine(aRenderingContext, 5 + ox, 1 + oy, 5 + ox, 3 + oy, PR_FALSE, 1, onePixel); PaintLine(aRenderingContext, 6 + ox, 0 + oy, 6 + ox, 2 + oy, PR_FALSE, 1, onePixel); } void nsFormControlHelper::PaintFixedSizeCheckMarkBorder(nsIRenderingContext& aRenderingContext, float aPixelsToTwips, const nsStyleColor& aBackgroundColor) { // Offsets to x,y location PRUint32 ox = 0; PRUint32 oy = 0; nscoord onePixel = NSIntPixelsToTwips(1, aPixelsToTwips); nscoord twelvePixels = NSIntPixelsToTwips(12, aPixelsToTwips); // Draw Background aRenderingContext.SetColor(aBackgroundColor.mColor); nsRect rect(0, 0, twelvePixels, twelvePixels); aRenderingContext.FillRect(rect); // Draw Border aRenderingContext.SetColor(NS_RGB(128, 128, 128)); PaintLine(aRenderingContext, 0 + ox, 0 + oy, 11 + ox, 0 + oy, PR_TRUE, 1, onePixel); PaintLine(aRenderingContext, 0 + ox, 0 + oy, 0 + ox, 11 + oy, PR_FALSE, 1, onePixel); aRenderingContext.SetColor(NS_RGB(192, 192, 192)); PaintLine(aRenderingContext, 1 + ox, 11 + oy, 11 + ox, 11 + oy, PR_TRUE, 1, onePixel); PaintLine(aRenderingContext, 11 + ox, 1 + oy, 11 + ox, 11 + oy, PR_FALSE, 1, onePixel); aRenderingContext.SetColor(NS_RGB(0, 0, 0)); PaintLine(aRenderingContext, 1 + ox, 1 + oy, 10 + ox, 1 + oy, PR_TRUE, 1, onePixel); PaintLine(aRenderingContext, 1 + ox, 1 + oy, 1 + ox, 10 + oy, PR_FALSE, 1, onePixel); } //Draw a checkmark in any size. void nsFormControlHelper::PaintCheckMark(nsIRenderingContext& aRenderingContext, float aPixelsToTwips, const nsRect & aRect) { // Width and height of the fixed size checkmark in TWIPS. const PRInt32 fixedSizeCheckmarkWidth = 165; const PRInt32 fixedSizeCheckmarkHeight = 165; if ((fixedSizeCheckmarkWidth == aRect.width) && (fixedSizeCheckmarkHeight == aRect.height)) { // Standard size, so draw a fixed size check mark instead of a scaled check mark. PaintFixedSizeCheckMark(aRenderingContext, aPixelsToTwips); return; } const PRUint32 checkpoints = 7; const PRUint32 checksize = 9; //This is value is determined by added 2 units to the end //of the 7X& pixel rectangle below to provide some white space //around the checkmark when it is rendered. // Points come from the coordinates on a 7X7 pixels // box with 0,0 at the lower left. nscoord checkedPolygonDef[] = {0,2, 2,4, 6,0 , 6,2, 2,6, 0,4, 0,2 }; // Location of the center point of the checkmark const PRUint32 centerx = 3; const PRUint32 centery = 3; nsPoint checkedPolygon[checkpoints]; PRUint32 defIndex = 0; PRUint32 polyIndex = 0; // Scale the checkmark based on the smallest dimension PRUint32 size = aRect.width / checksize; if (aRect.height < aRect.width) { size = aRect.height / checksize; } // Center and offset each point in the polygon definition. for (defIndex = 0; defIndex < (checkpoints * 2); defIndex++) { checkedPolygon[polyIndex].x = nscoord((((checkedPolygonDef[defIndex]) - centerx) * (size)) + (aRect.width / 2) + aRect.x); defIndex++; checkedPolygon[polyIndex].y = nscoord((((checkedPolygonDef[defIndex]) - centery) * (size)) + (aRect.height / 2) + aRect.y); polyIndex++; } aRenderingContext.FillPolygon(checkedPolygon, checkpoints); } void nsFormControlHelper::PaintFocus(nsIRenderingContext& aRenderingContext, const nsRect& aDirtyRect, nsRect& aInside, nsRect& aOutside) { // draw dashed line to indicate selection, XXX don't calc rect every time PRUint8 borderStyles[4]; nscolor borderColors[4]; nscolor black = NS_RGB(0,0,0); for (PRInt32 i = 0; i < 4; i++) { borderStyles[i] = NS_STYLE_BORDER_STYLE_DOTTED; borderColors[i] = black; } nsCSSRendering::DrawDashedSides(0, aRenderingContext,aDirtyRect, borderStyles, borderColors, aOutside, aInside, PR_FALSE, nsnull); } void nsFormControlHelper::PaintRectangularButton(nsIPresContext* aPresContext, nsIRenderingContext& aRenderingContext, const nsRect& aDirtyRect, const nsRect& aRect, PRBool aPressed, PRBool aShowFocus, PRBool aDisabled, PRBool aDrawOutline, nsIStyleContext* outlineStyle, nsIStyleContext* focusStyle, nsIStyleContext* aStyleContext, nsString& aLabel, nsIFrame* aForFrame) { nsIFormControlFrame * formFrame; nsresult result = aForFrame->QueryInterface(kIFormControlFrameIID, (void**)&formFrame); if (NS_OK != result) { NS_RELEASE(formFrame); } aRenderingContext.PushState(); // Draw border using CSS // Get the Scrollbar's Arrow's Style structs const nsStyleSpacing* spacing = (const nsStyleSpacing*)aStyleContext->GetStyleData(eStyleStruct_Spacing); const nsStyleColor* color = (const nsStyleColor*)aStyleContext->GetStyleData(eStyleStruct_Color); nsRect rect(aRect.x, aRect.y, aRect.width, aRect.height); const nsStyleSpacing* outline = (const nsStyleSpacing*)outlineStyle->GetStyleData(eStyleStruct_Spacing); const nsStyleSpacing* focus = (const nsStyleSpacing*)focusStyle->GetStyleData(eStyleStruct_Spacing); nsMargin outlineBorder; outline->CalcBorderFor(aForFrame, outlineBorder); nsMargin focusBorder; focus->CalcBorderFor(aForFrame, focusBorder); int left = (focusBorder.left > outlineBorder.left) ? focusBorder.left : outlineBorder.left; int right = (focusBorder.right > outlineBorder.right) ? focusBorder.right : outlineBorder.right; int top = (focusBorder.top > outlineBorder.top) ? focusBorder.top : outlineBorder.top; int bottom = (focusBorder.bottom > outlineBorder.bottom) ? focusBorder.bottom : outlineBorder.bottom; if (aShowFocus) { int l = left - focusBorder.left; int t = top - focusBorder.top; int b = bottom - focusBorder.bottom; int r = right - focusBorder.right; int w = aRect.width - (l + r); int h = aRect.height - (t + b); nsRect focusRect(l, t, w, h); nsCSSRendering::PaintBorder(aPresContext, aRenderingContext, aForFrame, aDirtyRect, focusRect, *focus, aStyleContext, 0); } if (aDrawOutline) { int l = left - outlineBorder.left; int t = top - outlineBorder.top; int b = bottom - outlineBorder.bottom; int r = right - outlineBorder.right; int w = aRect.width - (l + r); int h = aRect.height - (t + b); nsRect outlineRect(l, t, w, h); nsCSSRendering::PaintBorder(aPresContext, aRenderingContext, aForFrame, aDirtyRect, outlineRect, *outline, aStyleContext, 0); } rect.x += left; rect.y += right; rect.width -= (left + right); rect.height -= (top + bottom); nsCSSRendering::PaintBackground(aPresContext, aRenderingContext, aForFrame, aDirtyRect, rect, *color, *spacing, 0, 0); nsCSSRendering::PaintBorder(aPresContext, aRenderingContext, aForFrame, aDirtyRect, rect, *spacing,aStyleContext, 0); nsMargin border; spacing->CalcBorderFor(aForFrame, border); float p2t; aPresContext->GetScaledPixelsToTwips(&p2t); nscoord onePixel = NSIntPixelsToTwips(1, p2t); nsRect outside(aRect.x, aRect.y, aRect.width, aRect.height); outside.Deflate(border); outside.Deflate(onePixel, onePixel); nsRect inside(outside); inside.Deflate(onePixel, onePixel); /* if (aShowFocus) { PaintFocus(aRenderingContext, aDirtyRect, inside, outside); } */ aRenderingContext.SetColor(NS_RGB(255,255,255)); float appUnits; float devUnits; float scale; nsIDeviceContext * context; aRenderingContext.GetDeviceContext(context); context->GetCanonicalPixelScale(scale); context->GetAppUnitsToDevUnits(devUnits); context->GetDevUnitsToAppUnits(appUnits); const nsFont * font = nsnull; nsresult res = formFrame->GetFont(aPresContext, font); if (NS_SUCCEEDED(res) && font != nsnull) { aRenderingContext.SetFont(*font); } nscoord ascent; nscoord descent; nscoord textWidth; nscoord textHeight; aRenderingContext.GetWidth(aLabel, textWidth); nsIFontMetrics* metrics; context->GetMetricsFor(*font, metrics); metrics->GetMaxAscent(ascent); metrics->GetMaxDescent(descent); textHeight = ascent + descent; nscoord x = ((inside.width - textWidth) / 2) + inside.x; nscoord y = ((inside.height - textHeight) / 2) + inside.y; if (PR_TRUE == aPressed) { x += onePixel; y += onePixel; } if (aDisabled) { aRenderingContext.SetColor(NS_RGB(255,255,255)); aRenderingContext.DrawString(aLabel, x+onePixel, y+onePixel); } aRenderingContext.SetColor(color->mColor); aRenderingContext.DrawString(aLabel, x, y); NS_RELEASE(context); PRBool clipEmpty; aRenderingContext.PopState(clipEmpty); NS_RELEASE(formFrame); } void nsFormControlHelper::GetCircularRect(PRUint32 aWidth, PRUint32 aHeight, nsRect& aRect) { if (aWidth > aHeight) aRect.SetRect((aWidth/2) - (aHeight/2), 0, aHeight, aHeight); else aRect.SetRect(0, (aHeight/2) - (aWidth/2), aWidth, aWidth); } void nsFormControlHelper::PaintCircularBackground(nsIPresContext* aPresContext, nsIRenderingContext& aRenderingContext, const nsRect& aDirtyRect, nsIStyleContext* aStyleContext, PRBool aInset, nsIFrame* aForFrame, PRUint32 aWidth, PRUint32 aHeight) { float p2t; aPresContext->GetScaledPixelsToTwips(&p2t); nscoord onePixel = NSIntPixelsToTwips(1, p2t); nsRect outside; nsFormControlHelper::GetCircularRect(aWidth, aHeight, outside); outside.Deflate(onePixel, onePixel); outside.Deflate(onePixel, onePixel); const nsStyleColor* color = (const nsStyleColor*) aStyleContext->GetStyleData(eStyleStruct_Color); aRenderingContext.SetColor(color->mBackgroundColor); aRenderingContext.FillArc(outside, 0, 180); aRenderingContext.FillArc(outside, 180, 360); } //XXX: TODO Remove this. It is no longer needed since circular borders //are painted by the standard border code by setting a border radius //to 1/2 the width of the border void nsFormControlHelper::PaintCircularBorder(nsIPresContext* aPresContext, nsIRenderingContext& aRenderingContext, const nsRect& aDirtyRect, nsIStyleContext* aStyleContext, PRBool aInset, nsIFrame* aForFrame, PRUint32 aWidth, PRUint32 aHeight) { const PRUint32 standardWidth = 180; const PRUint32 standardHeight = 180; aRenderingContext.PushState(); float p2t; aPresContext->GetScaledPixelsToTwips(&p2t); const nsStyleSpacing* spacing = (const nsStyleSpacing*)aStyleContext->GetStyleData(eStyleStruct_Spacing); nsMargin border; spacing->CalcBorderFor(aForFrame, border); nscoord onePixel = NSIntPixelsToTwips(1, p2t); nscoord twelvePixels = NSIntPixelsToTwips(12, p2t); nsRect outside(0, 0, aWidth, aHeight); PRBool standardSize = ((aWidth == standardWidth) && (aHeight == standardHeight)); if (PR_TRUE == standardSize) { outside.SetRect(0, 0, twelvePixels, twelvePixels); if (PR_TRUE == aInset) { outside.Deflate(onePixel, onePixel); outside.Deflate(onePixel, onePixel); aRenderingContext.SetColor(NS_RGB(192,192,192)); aRenderingContext.FillArc(outside, 0, 180); aRenderingContext.FillArc(outside, 180, 360); outside.SetRect(0, 0, twelvePixels, twelvePixels); } // DrakGray // PRUint8 borderStyle = aBorderStyle.GetBorderStyle(NS_SIDE_TOP), // nscolor borderColor = aBorderStyle.GetBorderColor(NS_SIDE_TOP), aRenderingContext.SetColor(NS_RGB(128,128,128)); // aRenderingContext.SetColor(borderColor); PaintLine(aRenderingContext, 4, 0, 7, 0, PR_TRUE, 1, onePixel); PaintLine(aRenderingContext, 2, 1, 3, 1, PR_TRUE, 1, onePixel); PaintLine(aRenderingContext, 8, 1, 9, 1, PR_TRUE, 1, onePixel); PaintLine(aRenderingContext, 1, 2, 1, 3, PR_FALSE, 1, onePixel); PaintLine(aRenderingContext, 0, 4, 0, 7, PR_FALSE, 1, onePixel); PaintLine(aRenderingContext, 1, 8, 1, 9, PR_FALSE, 1, onePixel); // Black // nscolor borderColor = aBorderStyle.GetBorderColor(NS_SIDE_BOTTOM); // aRenderingContext.SetColor(borderColor); aRenderingContext.SetColor(NS_RGB(0,0,0)); PaintLine(aRenderingContext, 4, 1, 7, 1, PR_TRUE, 1, onePixel); PaintLine(aRenderingContext, 2, 2, 3, 2, PR_TRUE, 1, onePixel); PaintLine(aRenderingContext, 8, 2, 9, 2, PR_TRUE, 1, onePixel); PaintLine(aRenderingContext, 2, 2, 2, 3, PR_FALSE, 1, onePixel); PaintLine(aRenderingContext, 1, 4, 1, 7, PR_FALSE, 1, onePixel); PaintLine(aRenderingContext, 2, 8, 2, 8, PR_FALSE, 1, onePixel); // Gray aRenderingContext.SetColor(NS_RGB(192, 192, 192)); PaintLine(aRenderingContext, 2, 9, 3, 9, PR_TRUE, 1, onePixel); PaintLine(aRenderingContext, 8, 9, 9, 9, PR_TRUE, 1, onePixel); PaintLine(aRenderingContext, 4, 10, 7, 10, PR_TRUE, 1, onePixel); PaintLine(aRenderingContext, 9, 3, 9, 3, PR_FALSE, 1, onePixel); PaintLine(aRenderingContext, 10, 4, 10, 7, PR_FALSE, 1, onePixel); PaintLine(aRenderingContext, 9, 8, 9, 9, PR_FALSE, 1, onePixel); outside.Deflate(onePixel, onePixel); outside.Deflate(onePixel, onePixel); outside.Deflate(onePixel, onePixel); outside.Deflate(onePixel, onePixel); } else { nsFormControlHelper::GetCircularRect(aWidth, aHeight, outside); aRenderingContext.SetColor(NS_RGB(128,128,128)); aRenderingContext.FillArc(outside, 46, 225); aRenderingContext.SetColor(NS_RGB(255,255,255)); aRenderingContext.FillArc(outside, 225, 360); aRenderingContext.FillArc(outside, 0, 44); outside.Deflate(onePixel, onePixel); aRenderingContext.SetColor(NS_RGB(0,0,0)); aRenderingContext.FillArc(outside, 46, 225); aRenderingContext.SetColor(NS_RGB(192,192,192)); aRenderingContext.FillArc(outside, 225, 360); aRenderingContext.FillArc(outside, 0, 44); } PRBool clip; aRenderingContext.PopState(clip); } nsresult nsFormControlHelper::GetName(nsIContent* aContent,nsString* aResult) { nsresult result = NS_FORM_NOTOK; if (nsnull != aContent) { nsIHTMLContent* formControl = nsnull; result = aContent->QueryInterface(kIHTMLContentIID, (void**)&formControl); if ((NS_OK == result) && formControl) { nsHTMLValue value; result = formControl->GetHTMLAttribute(nsHTMLAtoms::name, value); if (NS_CONTENT_ATTR_HAS_VALUE == result) { if (eHTMLUnit_String == value.GetUnit()) { value.GetStringValue(*aResult); } } NS_RELEASE(formControl); } } return result; } nsresult nsFormControlHelper::GetValue(nsIContent* aContent, nsString* aResult) { nsresult result = NS_FORM_NOTOK; if (nsnull != aContent) { nsIHTMLContent* formControl = nsnull; result = aContent->QueryInterface(kIHTMLContentIID, (void**)&formControl); if ((NS_OK == result) && formControl) { nsHTMLValue value; result = formControl->GetHTMLAttribute(nsHTMLAtoms::value, value); if (NS_CONTENT_ATTR_HAS_VALUE == result) { if (eHTMLUnit_String == value.GetUnit()) { value.GetStringValue(*aResult); } } NS_RELEASE(formControl); } } return result; } nsresult nsFormControlHelper::GetInputElementValue(nsIContent* aContent, nsString* aText, PRBool aInitialValue) { nsresult result = NS_OK; nsIDOMHTMLInputElement* inputElem = nsnull; result = aContent->QueryInterface(kIDOMHTMLInputElementIID, (void**)&inputElem); if ((NS_OK == result) && inputElem) { if (PR_TRUE == aInitialValue) { result = inputElem->GetDefaultValue(*aText); } else { result = inputElem->GetValue(*aText); } NS_RELEASE(inputElem); } return result; } //---------------------------------------------------------------------------------- #define form_properties "chrome://communicator/locale/layout/HtmlForm.properties" // Return localised string for resource string (e.g. "Submit" -> "Submit Query") // This code is derived from nsBookmarksService::Init() and cookie_Localize() nsresult nsFormControlHelper::GetLocalizedString(char* aKey, nsString& oVal) { nsresult rv; nsCOMPtr bundle; // Create a URL for the string resource file // Create a bundle for the localization NS_WITH_SERVICE(nsIIOService, pNetService, kIOServiceCID, &rv); if (NS_SUCCEEDED(rv) && pNetService) { nsCOMPtr uri; rv = pNetService->NewURI(form_properties, nsnull, getter_AddRefs(uri)); if (NS_SUCCEEDED(rv) && uri) { // Create bundle NS_WITH_SERVICE(nsIStringBundleService, stringService, kStringBundleServiceCID, &rv); if (NS_SUCCEEDED(rv) && stringService) { nsXPIDLCString spec; rv = uri->GetSpec(getter_Copies(spec)); if (NS_SUCCEEDED(rv) && spec) { nsCOMPtr locale = nsnull; rv = stringService->CreateBundle(spec, locale, getter_AddRefs(bundle)); } } } } // Determine default label from string bundle if (NS_SUCCEEDED(rv) && bundle && aKey) { nsXPIDLString valUni; nsAutoString key; key.AssignWithConversion(aKey); rv = bundle->GetStringFromName(key.GetUnicode(), getter_Copies(valUni)); if (NS_SUCCEEDED(rv) && valUni) { oVal.Assign(valUni); } else { oVal.Truncate(); } } return rv; } // Return value of disabled attribute or PR_FALSE if none set nsresult nsFormControlHelper::GetDisabled(nsIContent* aContent, PRBool* oIsDisabled) { nsCOMPtr formControl = do_QueryInterface(aContent); nsHTMLValue value; nsresult result = formControl->GetHTMLAttribute(nsHTMLAtoms::disabled, value); if (NS_CONTENT_ATTR_HAS_VALUE == result) { if (eHTMLUnit_Empty == value.GetUnit()) { *oIsDisabled = PR_TRUE; } else { *oIsDisabled = PR_FALSE; } } else { *oIsDisabled = PR_FALSE; } return NS_OK; }