mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-12-15 11:13:29 +00:00
936 lines
32 KiB
C++
936 lines
32 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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*
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* The contents of this file are subject to the Netscape Public
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* License Version 1.1 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.mozilla.org/NPL/
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*
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* Software distributed under the License is distributed on an "AS
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* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
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* implied. See the License for the specific language governing
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* rights and limitations under the License.
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*
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* The Original Code is mozilla.org code.
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*
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* The Initial Developer of the Original Code is Netscape
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* Communications Corporation. Portions created by Netscape are
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* Copyright (C) 1998 Netscape Communications Corporation. All
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* Rights Reserved.
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*
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* Contributor(s):
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*/
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#include "nsCOMPtr.h"
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#include "nsFormControlHelper.h"
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#include "nsHTMLParts.h"
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#include "nsIHTMLContent.h"
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#include "nsIRenderingContext.h"
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#include "nsIPresShell.h"
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#include "nsIPresContext.h"
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#include "nsIStyleContext.h"
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#include "nsLeafFrame.h"
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#include "nsCSSRendering.h"
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#include "nsHTMLIIDs.h"
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#include "nsIView.h"
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#include "nsIViewManager.h"
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#include "nsCoord.h"
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#include "nsWidgetsCID.h"
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#include "nsViewsCID.h"
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#include "nsIComponentManager.h"
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#include "nsGUIEvent.h"
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#include "nsIFontMetrics.h"
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#include "nsIFormControl.h"
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#include "nsIDeviceContext.h"
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#include "nsHTMLAtoms.h"
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#include "nsIButton.h" // remove this when GetCID is pure virtual
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#include "nsICheckButton.h" //remove this
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#include "nsITextWidget.h" //remove this
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#include "nsISupports.h"
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#include "nsStyleConsts.h"
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#include "nsUnitConversion.h"
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#include "nsStyleUtil.h"
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#include "nsFormFrame.h"
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#include "nsIContent.h"
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#include "nsStyleUtil.h"
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#include "nsINameSpaceManager.h"
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#include "nsIDOMHTMLInputElement.h"
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// Needed for Localization
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#include "nsIServiceManager.h"
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#include "nsIIOService.h"
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#include "nsIURI.h"
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#include "nsIStringBundle.h"
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#include "nsITextContent.h"
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#include "nsISupportsArray.h"
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#include "nsXPIDLString.h"
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static NS_DEFINE_CID(kIOServiceCID, NS_IOSERVICE_CID);
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static NS_DEFINE_CID(kStringBundleServiceCID, NS_STRINGBUNDLESERVICE_CID);
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// done I10N
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static NS_DEFINE_IID(kISupportsIID, NS_ISUPPORTS_IID);
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static NS_DEFINE_IID(kViewCID, NS_VIEW_CID);
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// For figuring out the "WRAP" property
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#define kTextControl_Wrap_Soft "SOFT"
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#define kTextControl_Wrap_Virtual "VIRTUAL" // "virtual" is a synonym for "soft"
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#define kTextControl_Wrap_Hard "HARD"
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#define kTextControl_Wrap_Physical "PHYSICAL" // "physical" is a synonym for "hard"
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#define kTextControl_Wrap_Off "OFF"
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MOZ_DECL_CTOR_COUNTER(nsFormControlHelper)
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nsFormControlHelper::nsFormControlHelper()
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{
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MOZ_COUNT_CTOR(nsFormControlHelper);
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}
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nsFormControlHelper::~nsFormControlHelper()
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{
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MOZ_COUNT_DTOR(nsFormControlHelper);
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}
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void nsFormControlHelper::ForceDrawFrame(nsIPresContext* aPresContext, nsIFrame * aFrame)
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{
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if (aFrame == nsnull) {
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return;
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}
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nsRect rect;
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nsIView * view;
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nsPoint pnt;
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aFrame->GetOffsetFromView(aPresContext, pnt, &view);
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aFrame->GetRect(rect);
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rect.x = pnt.x;
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rect.y = pnt.y;
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if (view != nsnull) {
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nsIViewManager * viewMgr;
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view->GetViewManager(viewMgr);
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if (viewMgr != nsnull) {
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viewMgr->UpdateView(view, rect, NS_VMREFRESH_NO_SYNC);
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NS_RELEASE(viewMgr);
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}
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}
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}
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void nsFormControlHelper::PlatformToDOMLineBreaks(nsString &aString)
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{
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// Windows linebreaks: Map CRLF to LF:
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aString.ReplaceSubstring(NS_ConvertASCIItoUCS2("\r\n"), NS_ConvertASCIItoUCS2("\n"));
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// Mac linebreaks: Map any remaining CR to LF:
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aString.ReplaceSubstring(NS_ConvertASCIItoUCS2("\r"), NS_ConvertASCIItoUCS2("\n"));
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}
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PRBool nsFormControlHelper::GetBool(const nsAReadableString& aValue)
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{
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return aValue.Equals(NS_STRING_TRUE);
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}
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void nsFormControlHelper::GetBoolString(const PRBool aValue,
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nsAWritableString& aResult)
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{
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if (aValue)
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aResult.Assign(NS_STRING_TRUE);
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else
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aResult.Assign(NS_STRING_FALSE);
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}
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nsCompatibility
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nsFormControlHelper::GetRepChars(nsIPresContext* aPresContext, char& char1, char& char2)
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{
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nsCompatibility mode;
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aPresContext->GetCompatibilityMode(&mode);
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if (eCompatibility_Standard == mode) {
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char1 = 'W';
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char2 = 'w';
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return eCompatibility_Standard;
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} else {
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char1 = 'W';
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char2 = 'w';
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return eCompatibility_NavQuirks;
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}
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}
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nsresult nsFormControlHelper::GetFrameFontFM(nsIPresContext* aPresContext,
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nsIFormControlFrame * aFrame,
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nsIFontMetrics** aFontMet)
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{
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// Initialize with default font
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const nsFont * font = nsnull;
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// Get frame font
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if (NS_SUCCEEDED(aFrame->GetFont(aPresContext, font))) {
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nsCOMPtr<nsIDeviceContext> deviceContext;
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aPresContext->GetDeviceContext(getter_AddRefs(deviceContext));
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NS_ASSERTION(deviceContext, "Couldn't get the device context");
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if (font != nsnull) { // Get font metrics
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return deviceContext->GetMetricsFor(*font, *aFontMet);
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}
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}
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return NS_ERROR_FAILURE;
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}
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nsresult
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nsFormControlHelper::GetWrapProperty(nsIContent * aContent, nsString &aOutValue)
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{
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aOutValue.SetLength(0);
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nsresult result = NS_CONTENT_ATTR_NOT_THERE;
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nsIHTMLContent* content = nsnull;
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aContent->QueryInterface(kIHTMLContentIID, (void**) &content);
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if (nsnull != content) {
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nsHTMLValue value;
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result = content->GetHTMLAttribute(nsHTMLAtoms::wrap, value);
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if (eHTMLUnit_String == value.GetUnit()) {
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value.GetStringValue(aOutValue);
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}
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NS_RELEASE(content);
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}
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return result;
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}
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nsresult
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nsFormControlHelper::GetWrapPropertyEnum(nsIContent * aContent, nsHTMLTextWrap& aWrapProp)
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{
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nsString wrap;
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aWrapProp = eHTMLTextWrap_Off; // the default
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nsresult result = GetWrapProperty(aContent, wrap);
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if (NS_CONTENT_ATTR_NOT_THERE != result) {
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nsAutoString wrapHard; wrapHard.AssignWithConversion(kTextControl_Wrap_Hard);
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nsAutoString wrapPhysical; wrapPhysical.AssignWithConversion(kTextControl_Wrap_Physical);
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if (wrap.EqualsIgnoreCase(wrapHard) ||
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wrap.EqualsIgnoreCase(wrapPhysical)) {
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aWrapProp = eHTMLTextWrap_Hard;
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return result;
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}
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nsAutoString wrapSoft; wrapSoft.AssignWithConversion(kTextControl_Wrap_Soft);
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nsAutoString wrapVirtual; wrapVirtual.AssignWithConversion(kTextControl_Wrap_Virtual);
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if (wrap.EqualsIgnoreCase(wrapSoft) ||
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wrap.EqualsIgnoreCase(wrapVirtual)) {
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aWrapProp = eHTMLTextWrap_Soft;
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return result;
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}
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}
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return result;
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}
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nscoord
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nsFormControlHelper::CalcNavQuirkSizing(nsIPresContext* aPresContext,
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nsIRenderingContext* aRendContext,
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nsIFontMetrics* aFontMet,
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nsIFormControlFrame* aFrame,
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nsInputDimensionSpec& aSpec,
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nsSize& aSize)
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{
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float p2t;
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float t2p;
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aPresContext->GetPixelsToTwips(&p2t);
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aPresContext->GetTwipsToPixels(&t2p);
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nscoord ascent;
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nscoord descent;
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nscoord maxCharWidth;
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aFontMet->GetMaxAscent(ascent);
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aFontMet->GetMaxDescent(descent);
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aFontMet->GetMaxAdvance(maxCharWidth);
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ascent = NSToCoordRound(ascent * t2p);
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descent = NSToCoordRound(descent * t2p);
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maxCharWidth = NSToCoordRound(maxCharWidth * t2p);
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char char1, char2;
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GetRepChars(aPresContext, char1, char2);
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nscoord char1Width, char2Width;
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aRendContext->GetWidth(char1, char1Width);
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aRendContext->GetWidth(char2, char2Width);
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char1Width = NSToCoordRound(char1Width * t2p);
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char2Width = NSToCoordRound(char2Width * t2p);
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// Nav Quirk Calculation for TextField
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PRInt32 type;
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aFrame->GetType(&type);
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nscoord width;
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nscoord hgt;
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nscoord height;
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nscoord average = 0;
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if ((NS_FORM_INPUT_TEXT == type) || (NS_FORM_INPUT_PASSWORD == type)) {
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average = (char1Width + char2Width) / 2;
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width = maxCharWidth;
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hgt = ascent + descent;
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height = hgt + (hgt / 2);
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width += aSpec.mColDefaultSize * average;
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} else if (NS_FORM_TEXTAREA == type) {
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nscoord lines = 1;
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nscoord scrollbarWidth = 0;
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nscoord scrollbarHeight = 0;
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float scale;
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nsCOMPtr<nsIDeviceContext> dx;
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aPresContext->GetDeviceContext(getter_AddRefs(dx));
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if (dx) {
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float sbWidth;
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float sbHeight;
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dx->GetCanonicalPixelScale(scale);
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dx->GetScrollBarDimensions(sbWidth, sbHeight);
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scrollbarWidth = PRInt32(sbWidth * scale);
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scrollbarHeight = PRInt32(sbHeight * scale);
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scrollbarWidth = NSToCoordRound(scrollbarWidth * t2p);
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scrollbarHeight = NSToCoordRound(scrollbarHeight * t2p);
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} else {
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NS_ASSERTION(0, "Couldn't get the device context");
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scrollbarWidth = 16;
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scrollbarHeight = 16;
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}
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nsIContent * content;
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aFrame->GetFormContent(content);
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nsCOMPtr<nsIHTMLContent> hContent(do_QueryInterface(content));
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// determine the height
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nsHTMLValue rowAttr;
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nsresult rowStatus = NS_CONTENT_ATTR_NOT_THERE;
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if (nsnull != aSpec.mRowSizeAttr) {
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rowStatus = hContent->GetHTMLAttribute(aSpec.mRowSizeAttr, rowAttr);
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}
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if (NS_CONTENT_ATTR_HAS_VALUE == rowStatus) { // row attr will provide height
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PRInt32 rowAttrInt = ((rowAttr.GetUnit() == eHTMLUnit_Pixel)
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? rowAttr.GetPixelValue() : rowAttr.GetIntValue());
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lines = (rowAttrInt > 0) ? rowAttrInt : 1;
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} else {
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lines = aSpec.mRowDefaultSize;
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}
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average = (char1Width + char2Width) / 2;
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width = ((aSpec.mColDefaultSize + 1) * average) + scrollbarWidth;
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hgt = ascent + descent;
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height = (lines + 1) * hgt;
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// then if not word wrapping
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nsHTMLTextWrap wrapProp;
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nsFormControlHelper::GetWrapPropertyEnum(content, wrapProp);
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if (wrapProp == eHTMLTextWrap_Off) {
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height += scrollbarHeight;
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}
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NS_RELEASE(content);
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} else if (NS_FORM_INPUT_BUTTON == type ||
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NS_FORM_INPUT_SUBMIT == type ||
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NS_FORM_INPUT_RESET == type) {
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GetTextSize(aPresContext, aFrame, *aSpec.mColDefaultValue, aSize, aRendContext);
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aSize.width = NSToCoordRound(aSize.width * t2p);
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aSize.height = NSToCoordRound(aSize.height * t2p);
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width = 3 * aSize.width / 2;
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height = 3 * aSize.height / 2;
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} else if (NS_FORM_INPUT_HIDDEN == type) {
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width = 0;
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height = 0;
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} else {
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width = 0;
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height = 0;
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}
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#ifdef DEBUG_rodsXXXX
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printf("********* Nav Quirks: %d,%d max:%d average:%d ascent:%d descent:%d\n",
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width, height, maxCharWidth, average, ascent, descent);
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#endif
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aSize.width = NSIntPixelsToTwips(width, p2t);
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aSize.height = NSIntPixelsToTwips(height, p2t);
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average = NSIntPixelsToTwips(average, p2t);
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return average;
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}
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nscoord
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nsFormControlHelper::GetTextSize(nsIPresContext* aPresContext, nsIFormControlFrame* aFrame,
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const nsString& aString, nsSize& aSize,
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nsIRenderingContext *aRendContext)
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{
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nsCOMPtr<nsIFontMetrics> fontMet;
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nsresult res = GetFrameFontFM(aPresContext, aFrame, getter_AddRefs(fontMet));
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if (NS_SUCCEEDED(res) && fontMet) {
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aRendContext->SetFont(fontMet);
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// measure string
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aRendContext->GetWidth(aString, aSize.width);
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fontMet->GetHeight(aSize.height);
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} else {
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NS_ASSERTION(PR_FALSE, "Couldn't get Font Metrics");
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aSize.width = 0;
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}
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char char1, char2;
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nsCompatibility mode = GetRepChars(aPresContext, char1, char2);
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nscoord char1Width, char2Width;
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aRendContext->GetWidth(char1, char1Width);
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aRendContext->GetWidth(char2, char2Width);
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if (eCompatibility_Standard == mode) {
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return ((char1Width + char2Width) / 2) + 1;
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} else {
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return (char1Width + char2Width) / 2;
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}
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}
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nscoord
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nsFormControlHelper::GetTextSize(nsIPresContext* aPresContext, nsIFormControlFrame* aFrame,
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PRInt32 aNumChars, nsSize& aSize,
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nsIRenderingContext *aRendContext)
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{
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nsAutoString val;
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char char1, char2;
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GetRepChars(aPresContext, char1, char2);
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int i;
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for (i = 0; i < aNumChars; i+=2) {
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val.AppendWithConversion(char1);
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}
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for (i = 1; i < aNumChars; i+=2) {
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val.AppendWithConversion(char2);
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}
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return GetTextSize(aPresContext, aFrame, val, aSize, aRendContext);
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}
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PRInt32
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nsFormControlHelper::CalculateSize (nsIPresContext* aPresContext,
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nsIRenderingContext* aRendContext,
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nsIFormControlFrame* aFrame,
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const nsSize& aCSSSize,
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nsInputDimensionSpec& aSpec,
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nsSize& aDesiredSize,
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nsSize& aMinSize,
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PRBool& aWidthExplicit,
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PRBool& aHeightExplicit,
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nscoord& aRowHeight)
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{
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nscoord charWidth = 0;
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PRInt32 numRows = ATTR_NOTSET;
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aWidthExplicit = PR_FALSE;
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aHeightExplicit = PR_FALSE;
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aDesiredSize.width = CSS_NOTSET;
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aDesiredSize.height = CSS_NOTSET;
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nsIContent* iContent = nsnull;
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aFrame->GetFormContent((nsIContent*&) iContent);
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if (!iContent) {
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return 0;
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}
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nsIHTMLContent* hContent = nsnull;
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nsresult result = iContent->QueryInterface(kIHTMLContentIID, (void**)&hContent);
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if ((NS_OK != result) || !hContent) {
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NS_RELEASE(iContent);
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return 0;
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}
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nsAutoString valAttr;
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nsresult valStatus = NS_CONTENT_ATTR_NOT_THERE;
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if (nsnull != aSpec.mColValueAttr) {
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valStatus = hContent->GetAttribute(kNameSpaceID_HTML, aSpec.mColValueAttr, valAttr);
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}
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nsHTMLValue colAttr;
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nsresult colStatus = NS_CONTENT_ATTR_NOT_THERE;
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if (nsnull != aSpec.mColSizeAttr) {
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colStatus = hContent->GetHTMLAttribute(aSpec.mColSizeAttr, colAttr);
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}
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float p2t;
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aPresContext->GetScaledPixelsToTwips(&p2t);
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#if 0
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// determine if it is percentage based width, height
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PRBool percentageWidth = PR_FALSE;
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PRBool percentageHeight = PR_FALSE;
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const nsStylePosition* pos;
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nsIFrame* iFrame = nsnull;
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nsresult rv = aFrame->QueryInterface(NS_GET_IID(nsIFrame), (void**)&iFrame);
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if ((NS_OK == rv) && (nsnull != iFrame)) {
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iFrame->GetStyleData(eStyleStruct_Position, (const nsStyleStruct*&)pos);
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if (eStyleUnit_Percent == pos->mWidth.GetUnit()) {
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percentageWidth = PR_TRUE;
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}
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if (eStyleUnit_Percent == pos->mWidth.GetUnit()) {
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percentageHeight = PR_TRUE;
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}
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}
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#endif
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nsCompatibility qMode;
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aPresContext->GetCompatibilityMode(&qMode);
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// determine the width, char height, row height
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if (NS_CONTENT_ATTR_HAS_VALUE == colStatus) { // col attr will provide width
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PRInt32 col = ((colAttr.GetUnit() == eHTMLUnit_Pixel) ? colAttr.GetPixelValue() : colAttr.GetIntValue());
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if (aSpec.mColSizeAttrInPixels) {
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// need to set charWidth and aDesiredSize.height
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charWidth = GetTextSize(aPresContext, aFrame, 1, aDesiredSize, aRendContext);
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col = (col <= 0) ? 15 : col; // XXX why a default of 15 pixels, why hide it
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// XXX this conflicts with a default of 20 found in nsGfxTextControlFrame.
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aDesiredSize.width = NSIntPixelsToTwips(col, p2t);
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} else {
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col = (col <= 0) ? 1 : col; // XXX why a default of 1 char, why hide it
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|
if (eCompatibility_NavQuirks == qMode) {
|
|
nsCOMPtr<nsIFontMetrics> 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<nsIFontMetrics> 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;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
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);
|
|
|
|
}
|
|
|
|
//---------------------------------------------------------------------------
|
|
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::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);
|
|
}
|
|
|
|
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(NS_GET_IID(nsIDOMHTMLInputElement), (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;
|
|
}
|
|
|
|
//----------------------------------------------------------------------------------
|
|
// Return localised string for resource string (e.g. "Submit" -> "Submit Query")
|
|
// This code is derived from nsBookmarksService::Init() and cookie_Localize()
|
|
nsresult
|
|
nsFormControlHelper::GetLocalizedString(const char * aPropFileName, const char* aKey, nsString& oVal)
|
|
{
|
|
nsresult rv;
|
|
nsCOMPtr<nsIStringBundle> 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<nsIURI> uri;
|
|
rv = pNetService->NewURI(aPropFileName, 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<nsILocale> 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<nsIHTMLContent> 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;
|
|
}
|