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e0e813fecd
the first item. It will also perform rradiobutton behavior when the frame are hidden (no existent) b=27063 r=kmcclusk
394 lines
12 KiB
C++
394 lines
12 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 "nsGfxRadioControlFrame.h"
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#include "nsHTMLAtoms.h"
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#include "nsHTMLParts.h"
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#include "nsFormFrame.h"
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#include "nsIFormControl.h"
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#include "nsIContent.h"
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#include "nsWidgetsCID.h"
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#include "nsIComponentManager.h"
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#include "nsCOMPtr.h"
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#include "nsCSSRendering.h"
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#include "nsIPresState.h"
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#include "nsINameSpaceManager.h"
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nsresult
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NS_NewGfxRadioControlFrame(nsIPresShell* aPresShell, nsIFrame** aNewFrame)
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{
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NS_PRECONDITION(aNewFrame, "null OUT ptr");
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if (nsnull == aNewFrame) {
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return NS_ERROR_NULL_POINTER;
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}
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nsGfxRadioControlFrame* it = new (aPresShell) nsGfxRadioControlFrame;
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if (!it) {
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return NS_ERROR_OUT_OF_MEMORY;
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}
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*aNewFrame = it;
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return NS_OK;
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}
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nsGfxRadioControlFrame::nsGfxRadioControlFrame()
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{
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// Initialize GFX-rendered state
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mChecked = PR_FALSE;
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mRadioButtonFaceStyle = nsnull;
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}
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nsGfxRadioControlFrame::~nsGfxRadioControlFrame()
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{
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NS_IF_RELEASE(mRadioButtonFaceStyle);
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}
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// Frames are not refcounted, no need to AddRef
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NS_IMETHODIMP
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nsGfxRadioControlFrame::QueryInterface(const nsIID& aIID, void** aInstancePtr)
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{
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NS_PRECONDITION(0 != aInstancePtr, "null ptr");
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if (NULL == aInstancePtr) {
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return NS_ERROR_NULL_POINTER;
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}
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if (aIID.Equals(NS_GET_IID(nsIRadioControlFrame))) {
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*aInstancePtr = (void*) ((nsIRadioControlFrame*) this);
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return NS_OK;
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}
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if (aIID.Equals(NS_GET_IID(nsIStatefulFrame))) {
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*aInstancePtr = (void*) ((nsIStatefulFrame*) this);
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return NS_OK;
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}
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return nsFormControlFrame::QueryInterface(aIID, aInstancePtr);
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}
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//--------------------------------------------------------------
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NS_IMETHODIMP
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nsGfxRadioControlFrame::GetAdditionalStyleContext(PRInt32 aIndex,
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nsIStyleContext** aStyleContext) const
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{
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NS_PRECONDITION(nsnull != aStyleContext, "null OUT parameter pointer");
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if (aIndex < 0) {
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return NS_ERROR_INVALID_ARG;
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}
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*aStyleContext = nsnull;
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switch (aIndex) {
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case NS_GFX_RADIO_CONTROL_FRAME_FACE_CONTEXT_INDEX:
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*aStyleContext = mRadioButtonFaceStyle;
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NS_IF_ADDREF(*aStyleContext);
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break;
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default:
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return NS_ERROR_INVALID_ARG;
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}
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return NS_OK;
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}
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//--------------------------------------------------------------
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NS_IMETHODIMP
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nsGfxRadioControlFrame::SetAdditionalStyleContext(PRInt32 aIndex,
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nsIStyleContext* aStyleContext)
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{
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if (aIndex < 0) {
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return NS_ERROR_INVALID_ARG;
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}
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switch (aIndex) {
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case NS_GFX_RADIO_CONTROL_FRAME_FACE_CONTEXT_INDEX:
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NS_IF_RELEASE(mRadioButtonFaceStyle);
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mRadioButtonFaceStyle = aStyleContext;
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NS_IF_ADDREF(aStyleContext);
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break;
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}
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return NS_OK;
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}
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//--------------------------------------------------------------
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NS_IMETHODIMP nsGfxRadioControlFrame::SetProperty(nsIPresContext* aPresContext, nsIAtom* aName, const nsString& aValue)
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{
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if (nsHTMLAtoms::checked == aName) {
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PRBool state = (aValue == NS_STRING_TRUE) ? PR_TRUE : PR_FALSE;
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// if there is no form than the radiobtn is an orphan
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if (mFormFrame) {
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// if this failed then it didn't have a named radio group
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if (NS_FAILED(mFormFrame->OnRadioChecked(aPresContext, *this, state))) {
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// The line below is commented out to duplicate NavQuirks behavior
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//SetRadioState(aPresContext, state);
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}
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} else {
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SetRadioState(aPresContext, state);
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}
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}
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else {
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return nsFormControlFrame::SetProperty(aPresContext, aName, aValue);
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}
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return NS_OK;
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}
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//--------------------------------------------------------------
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NS_IMETHODIMP nsGfxRadioControlFrame::GetProperty(nsIAtom* aName, nsString& aValue)
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{
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// Return the value of the property from the widget it is not null.
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// If is null, assume the widget is GFX-rendered and return a member variable instead.
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if (nsHTMLAtoms::checked == aName) {
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nsFormControlHelper::GetBoolString(GetRadioState(), aValue);
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} else {
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return nsFormControlFrame::GetProperty(aName, aValue);
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}
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return NS_OK;
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}
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//--------------------------------------------------------------
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PRBool
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nsGfxRadioControlFrame::GetChecked()
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{
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PRBool checked = PR_FALSE;
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GetDefaultCheckState(&checked);
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return(checked);
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}
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//--------------------------------------------------------------
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PRBool
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nsGfxRadioControlFrame::GetDefaultChecked()
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{
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PRBool checked = PR_FALSE;
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GetCurrentCheckState(&checked);
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return(checked);
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}
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//--------------------------------------------------------------
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void
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nsGfxRadioControlFrame::SetChecked(nsIPresContext* aPresContext, PRBool aValue, PRBool aSetInitialValue)
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{
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if (aSetInitialValue) {
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if (aValue) {
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mContent->SetAttribute(kNameSpaceID_HTML, nsHTMLAtoms::checked, nsAutoString("1"), PR_FALSE); // XXX should be "empty" value
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} else {
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mContent->SetAttribute(kNameSpaceID_HTML, nsHTMLAtoms::checked, nsAutoString("0"), PR_FALSE);
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}
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}
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SetRadioState(aPresContext, aValue);
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}
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//--------------------------------------------------------------
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NS_IMETHODIMP
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nsGfxRadioControlFrame::SetRadioButtonFaceStyleContext(nsIStyleContext *aRadioButtonFaceStyleContext)
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{
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mRadioButtonFaceStyle = aRadioButtonFaceStyleContext;
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NS_ADDREF(mRadioButtonFaceStyle);
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return NS_OK;
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}
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//--------------------------------------------------------------
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PRBool
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nsGfxRadioControlFrame::GetNamesValues(PRInt32 aMaxNumValues, PRInt32& aNumValues,
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nsString* aValues, nsString* aNames)
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{
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nsAutoString name;
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nsresult result = GetName(&name);
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if ((aMaxNumValues <= 0) || (NS_CONTENT_ATTR_HAS_VALUE != result)) {
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return PR_FALSE;
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}
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PRBool state = GetRadioState();
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if(PR_TRUE != state) {
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return PR_FALSE;
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}
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nsAutoString value;
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result = GetValue(&value);
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if (NS_CONTENT_ATTR_HAS_VALUE == result) {
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aValues[0] = value;
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} else {
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aValues[0] = "on";
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}
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aNames[0] = name;
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aNumValues = 1;
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return PR_TRUE;
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}
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//--------------------------------------------------------------
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void
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nsGfxRadioControlFrame::Reset(nsIPresContext* aPresContext)
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{
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PRBool checked = PR_TRUE;
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GetDefaultCheckState(&checked);
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SetCurrentCheckState(checked);
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}
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//--------------------------------------------------------------
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void
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nsGfxRadioControlFrame::PaintRadioButton(nsIPresContext* aPresContext,
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nsIRenderingContext& aRenderingContext,
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const nsRect& aDirtyRect)
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{
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PRBool checked = PR_TRUE;
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GetCurrentCheckState(&checked); // Get check state from the content model
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if (PR_TRUE == checked) {
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// Paint the button for the radio button using CSS background rendering code
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if (nsnull != mRadioButtonFaceStyle) {
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const nsStyleColor* myColor = (const nsStyleColor*)
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mRadioButtonFaceStyle->GetStyleData(eStyleStruct_Color);
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const nsStyleSpacing* mySpacing = (const nsStyleSpacing*)
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mRadioButtonFaceStyle->GetStyleData(eStyleStruct_Spacing);
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const nsStylePosition* myPosition = (const nsStylePosition*)
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mRadioButtonFaceStyle->GetStyleData(eStyleStruct_Position);
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nscoord width = myPosition->mWidth.GetCoordValue();
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nscoord height = myPosition->mHeight.GetCoordValue();
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// Position the button centered within the radio control's rectangle.
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nscoord x = (mRect.width - width) / 2;
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nscoord y = (mRect.height - height) / 2;
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nsRect rect(x, y, width, height);
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nsCSSRendering::PaintBackground(aPresContext, aRenderingContext, this,
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aDirtyRect, rect, *myColor, *mySpacing, 0, 0);
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nsCSSRendering::PaintBorder(aPresContext, aRenderingContext, this,
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aDirtyRect, rect, *mySpacing, mRadioButtonFaceStyle, 0);
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}
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}
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}
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//--------------------------------------------------------------
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NS_METHOD
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nsGfxRadioControlFrame::Paint(nsIPresContext* aPresContext,
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nsIRenderingContext& aRenderingContext,
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const nsRect& aDirtyRect,
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nsFramePaintLayer aWhichLayer)
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{
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const nsStyleDisplay* disp = (const nsStyleDisplay*)
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mStyleContext->GetStyleData(eStyleStruct_Display);
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if (disp->mVisible != NS_STYLE_VISIBILITY_VISIBLE)
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return NS_OK;
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// Paint the background
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nsFormControlFrame::Paint(aPresContext, aRenderingContext, aDirtyRect, aWhichLayer);
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if (NS_FRAME_PAINT_LAYER_FOREGROUND == aWhichLayer) {
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PaintRadioButton(aPresContext, aRenderingContext, aDirtyRect);
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}
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return NS_OK;
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}
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//--------------------------------------------------------------
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PRBool nsGfxRadioControlFrame::GetRadioState()
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{
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return mChecked;
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}
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//--------------------------------------------------------------
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void nsGfxRadioControlFrame::SetRadioState(nsIPresContext* aPresContext, PRBool aValue)
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{
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mChecked = aValue;
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nsFormControlHelper::ForceDrawFrame(aPresContext, this);
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}
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void
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nsGfxRadioControlFrame::InitializeControl(nsIPresContext* aPresContext)
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{
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nsFormControlFrame::InitializeControl(aPresContext);
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// set the widget to the initial state
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PRBool checked = PR_FALSE;
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nsresult result = GetDefaultCheckState(&checked);
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if (NS_CONTENT_ATTR_HAS_VALUE == result) {
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SetRadioState(aPresContext, checked);
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}
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}
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//----------------------------------------------------------------------
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// nsIStatefulFrame
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//----------------------------------------------------------------------
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NS_IMETHODIMP
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nsGfxRadioControlFrame::GetStateType(nsIPresContext* aPresContext, nsIStatefulFrame::StateType* aStateType)
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{
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*aStateType = nsIStatefulFrame::eRadioType;
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return NS_OK;
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}
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//----------------------------------------------------------------------
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NS_IMETHODIMP
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nsGfxRadioControlFrame::SaveState(nsIPresContext* aPresContext, nsIPresState** aState)
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{
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// Construct a pres state.
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NS_NewPresState(aState); // The addref happens here.
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// This string will hold a single item, whether or not we're checked.
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nsAutoString stateString;
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nsFormControlHelper::GetBoolString(GetRadioState(), stateString);
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(*aState)->SetStateProperty("checked", stateString);
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return NS_OK;
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}
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//----------------------------------------------------------------------
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NS_IMETHODIMP
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nsGfxRadioControlFrame::RestoreState(nsIPresContext* aPresContext, nsIPresState* aState)
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{
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if (!mDidInit) {
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mPresContext = aPresContext;
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InitializeControl(aPresContext);
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mDidInit = PR_TRUE;
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}
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mIsRestored = PR_TRUE;
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nsAutoString string;
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aState->GetStateProperty("checked", string);
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PRBool state = (string == NS_STRING_TRUE) ? PR_TRUE : PR_FALSE;
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SetRadioState(aPresContext, state); // sets mChecked
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mRestoredChecked = mChecked;
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return NS_OK;
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}
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//----------------------------------------------------------------------
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// Extra Debug Helper Methods
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//----------------------------------------------------------------------
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#ifdef DEBUG_rodsXXX
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NS_IMETHODIMP
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nsGfxRadioControlFrame::Reflow(nsIPresContext* aPresContext,
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nsHTMLReflowMetrics& aDesiredSize,
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const nsHTMLReflowState& aReflowState,
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nsReflowStatus& aStatus)
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{
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nsresult rv = nsNativeFormControlFrame::Reflow(aPresContext, aDesiredSize, aReflowState, aStatus);
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COMPARE_QUIRK_SIZE("nsGfxRadioControlFrame", 12, 11)
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return rv;
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}
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#endif
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