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gecko-dev/layout/forms/nsListControlFrame.cpp

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/* -*- 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 1.0 (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 Communicator client 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.
*/
#include "nsCOMPtr.h"
#include "nsListControlFrame.h"
#include "nsFormControlHelper.h"
#include "nsFormControlFrame.h"
#include "nsBlockReflowContext.h"
#include "nsBlockBandData.h"
#include "nsBulletFrame.h"
#include "nsLineBox.h"
#include "nsFrameReflowState.h"
#include "nsLineLayout.h"
#include "nsInlineReflow.h"
#include "nsPlaceholderFrame.h"
#include "nsStyleConsts.h"
#include "nsHTMLIIDs.h"
#include "nsCSSRendering.h"
#include "nsIPresContext.h"
#include "nsIPresShell.h"
#include "nsIReflowCommand.h"
#include "nsISpaceManager.h"
#include "nsIStyleContext.h"
#include "nsIView.h"
#include "nsIFontMetrics.h"
#include "nsHTMLParts.h"
#include "nsHTMLAtoms.h"
#include "nsHTMLValue.h"
#include "nsDOMEvent.h"
#include "nsIHTMLContent.h"
#include "prprf.h"
#include "nsLayoutAtoms.h"
#include "nsIFormControl.h"
#include "nsStyleUtil.h"
#include "nsINameSpaceManager.h"
#include "nsIDeviceContext.h" //rods
#include "nsIHTMLContent.h" //rods
#include "nsIDOMHTMLCollection.h" //rods
#include "nsIDOMHTMLSelectElement.h" //rods
//#include "nsIDOMHTMLOListElement.h" //rods
#include "nsIDOMHTMLOptionElement.h" //rods
#include "nsIDOMNode.h" //rods
#include "nsHTMLAtoms.h" //rods
#include "nsIAtom.h" //rods
#include "nsIDOMEventReceiver.h"
#include "nsIComboboxControlFrame.h"
#include "nsComboboxControlFrame.h" // for the static helper function
#include "nsIListControlFrame.h"
#include "nsIViewManager.h"
#include "nsFormFrame.h"
#define CSS_NOTSET -1
#define ATTR_NOTSET -1
// Constants
const char * kNormal = "";
const char * kSelected = "SELECTED";
const char * kSelectedFocus = "SELECTEDFOCUS";
static NS_DEFINE_IID(kIContentIID, NS_ICONTENT_IID);
static NS_DEFINE_IID(kIFormControlFrameIID, NS_IFORMCONTROLFRAME_IID);
#ifdef PLUGGABLE_EVENTS
static NS_DEFINE_IID(kIPluggableEventListenerIID, NS_IPLUGGABLEEVENTLISTENER_IID);
#endif
static NS_DEFINE_IID(kIListControlFrameIID, NS_ILISTCONTROLFRAME_IID);
static NS_DEFINE_IID(kIDOMHTMLSelectElementIID, NS_IDOMHTMLSELECTELEMENT_IID);
static NS_DEFINE_IID(kIDOMHTMLOptionElementIID, NS_IDOMHTMLOPTIONELEMENT_IID);
static NS_DEFINE_IID(kIDOMNodeIID, NS_IDOMNODE_IID);
static NS_DEFINE_IID(kIDOMElementIID, NS_IDOMELEMENT_IID);
//----------------------------------------------------------------------
nsresult
NS_NewListControlFrame(nsIFrame*& aNewFrame)
{
nsListControlFrame* it = new nsListControlFrame;
if (nsnull == it) {
return NS_ERROR_OUT_OF_MEMORY;
}
aNewFrame = it;
return NS_OK;
}
//----------------------------------------------------------------------
nsListControlFrame::nsListControlFrame()
{
mHitFrame = nsnull;
mCurrentHitFrame = nsnull;
mSelectedFrame = nsnull;
mSelectedContent = nsnull;
mSelectedIndex = -1;
mNumRows = 0;
mMaxNumSelections = 64;
mIsInitializedFromContent = PR_FALSE;
PRInt32 i;
for (i=0;i<mMaxNumSelections;i++) {
mIsFrameSelected[i] = PR_FALSE;
}
mNumSelections = 0;
mInDropDownMode = PR_FALSE;
mComboboxFrame = nsnull;
}
//----------------------------------------------------------------------
nsListControlFrame::~nsListControlFrame()
{
NS_IF_RELEASE(mComboboxFrame);
}
//----------------------------------------------------------------------
NS_IMPL_ADDREF(nsListControlFrame)
NS_IMPL_RELEASE(nsListControlFrame)
//----------------------------------------------------------------------
NS_IMETHODIMP
nsListControlFrame::QueryInterface(const nsIID& aIID, void** aInstancePtr)
{
if (NULL == aInstancePtr) {
return NS_ERROR_NULL_POINTER;
}
if (aIID.Equals(kIFormControlFrameIID)) {
*aInstancePtr = (void*) ((nsIFormControlFrame*) this);
return NS_OK;
}
if (aIID.Equals(kIListControlFrameIID)) {
NS_ADDREF_THIS(); // Increase reference count for caller
*aInstancePtr = (void *)((nsIListControlFrame*)this);
return NS_OK;
}
#ifdef PLUGGABLE_EVENTS
if (aIID.Equals(kIPluggableEventListenerIID)) {
NS_ADDREF_THIS(); // Increase reference count for caller
*aInstancePtr = (void *)((nsIPluggableEventListener*)this);
return NS_OK;
}
#endif
return nsScrollFrame::QueryInterface(aIID, aInstancePtr);
}
//----------------------------------------------------------------------
NS_IMETHODIMP
nsListControlFrame::GetFrameForPoint(const nsPoint& aPoint, nsIFrame** aFrame)
{
//nsresult rv = nsScrollFrame::GetFrameForPoint(aPoint, aFrame);
nsresult rv = GetFrameForPointUsing(aPoint, nsnull, aFrame);
if (NS_OK == rv) {
if (*aFrame != this) {
mHitFrame = *aFrame;
*aFrame = this;
}
return NS_OK;
}
*aFrame = this;
return NS_ERROR_FAILURE;
}
//----------------------------------------------------------------------
nsresult
nsListControlFrame::GetFrameForPointUsing(const nsPoint& aPoint,
nsIAtom* aList,
nsIFrame** aFrame)
{
nsIFrame* kid;
nsRect kidRect;
nsPoint tmp;
*aFrame = nsnull;
mContentFrame->FirstChild(aList, &kid);
while (nsnull != kid) {
kid->GetRect(kidRect);
if (kidRect.Contains(aPoint)) {
tmp.MoveTo(aPoint.x - kidRect.x, aPoint.y - kidRect.y);
nsIContent * content;
kid->GetContent(&content);
static NS_DEFINE_IID(kIDOMHTMLOptionElementIID, NS_IDOMHTMLOPTIONELEMENT_IID);
nsIDOMHTMLOptionElement* oe;
if (content && (NS_OK == content->QueryInterface(kIDOMHTMLOptionElementIID, (void**) &oe))) {
*aFrame = kid;
NS_RELEASE(content);
return NS_OK;
}
NS_RELEASE(content);
return kid->GetFrameForPoint(tmp, aFrame);
//*aFrame = kid;
//return NS_OK;
}
kid->GetNextSibling(&kid);
}
mContentFrame->FirstChild(aList, &kid);
while (nsnull != kid) {
nsFrameState state;
kid->GetFrameState(&state);
if (NS_FRAME_OUTSIDE_CHILDREN & state) {
kid->GetRect(kidRect);
tmp.MoveTo(aPoint.x - kidRect.x, aPoint.y - kidRect.y);
if (NS_OK == kid->GetFrameForPoint(tmp, aFrame)) {
return NS_OK;
}
}
kid->GetNextSibling(&kid);
}
*aFrame = this;
return NS_ERROR_FAILURE;
}
//----------------------------------------------------------------------
void
nsListControlFrame::PaintChildren(nsIPresContext& aPresContext,
nsIRenderingContext& aRenderingContext,
const nsRect& aDirtyRect,
nsFramePaintLayer aWhichLayer)
{
nsScrollFrame::PaintChildren(aPresContext,
aRenderingContext,
aDirtyRect, aWhichLayer);
}
//----------------------------------------------------------------------
// XXX this needs to properly deal with max element size. percentage based unconstrained widths cannot
// be allowed to return large max element sizes or tables will get too large.
NS_IMETHODIMP
nsListControlFrame::Reflow(nsIPresContext& aPresContext,
nsHTMLReflowMetrics& aDesiredSize,
const nsHTMLReflowState& aReflowState,
nsReflowStatus& aStatus)
{
if (!mIsInitializedFromContent) {
mIsInitializedFromContent = PR_TRUE;
InitializeFromContent(PR_TRUE);
}
nsIFrame* childFrame;
nscoord scrollbarWidth = 0;
nscoord scrollbarHeight = 0;
GetScrollBarDimensions(aPresContext, scrollbarWidth, scrollbarHeight);
nsFont font(aPresContext.GetDefaultFixedFontDeprecated());
GetFont(&aPresContext, font);
nsSize maxSize(aReflowState.availableWidth, aReflowState.availableHeight);
nsHTMLReflowMetrics desiredSize = aDesiredSize;
aDesiredSize.width = 0;
aDesiredSize.height = 0;
// Calculate the amount of space needed for borders
const nsStyleSpacing* spacing = (const nsStyleSpacing*)mStyleContext->GetStyleData(eStyleStruct_Spacing);
nsMargin border;
if (!spacing->GetBorder(border)) {
border.SizeTo(0, 0, 0, 0);
}
nsSize desiredLineSize;
GetDesiredSize(&aPresContext, aReflowState, aDesiredSize, desiredLineSize);
float p2t;
aPresContext.GetScaledPixelsToTwips(&p2t);
nscoord lineEndPadding = NSIntPixelsToTwips(10, p2t);//GetHorizontalInsidePadding(aPresContext, p2t, 0, 0);
aDesiredSize.width += lineEndPadding;
desiredSize = aDesiredSize;
nsIFrame * firstChild = mFrames.FirstChild();
nsHTMLReflowState reflowState(aPresContext, firstChild, aReflowState, maxSize);
nsIHTMLReflow* htmlReflow;
if (NS_OK == firstChild->QueryInterface(kIHTMLReflowIID, (void**)&htmlReflow)) {
htmlReflow->WillReflow(aPresContext);
htmlReflow->Reflow(aPresContext, desiredSize, reflowState, aStatus);
NS_ASSERTION(NS_FRAME_IS_COMPLETE(aStatus), "bad status");
}
mContentFrame->FirstChild(nsnull, &childFrame);
PRInt32 numChildren = LengthOf(childFrame);
aDesiredSize.width += border.left+border.right;
aDesiredSize.height += border.top+border.bottom;
nscoord insideWidth = aDesiredSize.width-border.left-border.right-1;
if (mInDropDownMode) {
aDesiredSize.width += scrollbarWidth;
insideWidth += scrollbarWidth;
} else {
if (mNumRows < numChildren) {
aDesiredSize.width += scrollbarWidth;
}
}
nsRect rect(0,0, insideWidth, desiredLineSize.height*numChildren);
mContentFrame->SetRect(rect);
mContentFrame->FirstChild(nsnull, &childFrame);
nsPoint offset(0,0);
while (nsnull != childFrame) { // reflow, place, size the children
nsHTMLReflowState reflowState(aPresContext, childFrame, aReflowState, maxSize);
nsIHTMLReflow* htmlReflow;
if (NS_OK == childFrame->QueryInterface(kIHTMLReflowIID, (void**)&htmlReflow)) {
htmlReflow->WillReflow(aPresContext);
htmlReflow->Reflow(aPresContext, desiredSize, reflowState, aStatus);
NS_ASSERTION(NS_FRAME_IS_COMPLETE(aStatus), "bad status");
//??nsRect rect(offset.x, offset.y, desiredLineSize.width+lineEndPadding, desiredLineSize.height);
nsRect rect(offset.x, offset.y, insideWidth, desiredLineSize.height);
childFrame->SetRect(rect);
childFrame->GetNextSibling(&childFrame);
offset.x = 0;
offset.y += desiredLineSize.height;
}
}
if (nsnull != aDesiredSize.maxElementSize) {
//XXX aDesiredSize.AddBorderPaddingToMaxElementSize(borderPadding);
aDesiredSize.maxElementSize->width = aDesiredSize.width;
aDesiredSize.maxElementSize->height = aDesiredSize.height;
}
aStatus = NS_FRAME_COMPLETE;
return NS_OK;
}
NS_IMETHODIMP nsListControlFrame::SetRect(const nsRect& aRect)
{
nsScrollFrame::SetRect(aRect);
return NS_OK;
}
NS_IMETHODIMP nsListControlFrame::SizeTo(nscoord aWidth, nscoord aHeight)
{
nsScrollFrame::SizeTo(aWidth, aHeight);
return NS_OK;
}
//----------------------------------------------------------------------
nsIFrame *
nsListControlFrame::GetOptionFromChild(nsIFrame* aParentFrame)
{
nsIFrame* kid;
aParentFrame->FirstChild(nsnull, &kid);
while (nsnull != kid) {
nsIContent * content;
kid->GetContent(&content);
static NS_DEFINE_IID(kIDOMHTMLOptionElementIID, NS_IDOMHTMLOPTIONELEMENT_IID);
nsIDOMHTMLOptionElement* element;
if (content && (NS_OK == content->QueryInterface(kIDOMHTMLOptionElementIID, (void**) &element))) {
NS_RELEASE(content);
NS_RELEASE(element);
return kid;
}
NS_RELEASE(content);
nsIFrame * frame = GetOptionFromChild(kid);
if (nsnull != frame) {
return frame;
}
kid->GetNextSibling(&kid);
}
return nsnull;
}
//--------------------------------------------------------------
NS_IMETHODIMP
nsListControlFrame::GetFormContent(nsIContent*& aContent) const
{
nsIContent* content;
nsresult rv;
rv = GetContent(&content);
aContent = content;
return rv;
}
//--------------------------------------------------------------
NS_IMETHODIMP
nsListControlFrame::GetFont(nsIPresContext* aPresContext,
nsFont& aFont)
{
nsFormControlHelper::GetFont(this, aPresContext, mStyleContext, aFont);
return NS_OK;
}
//----------------------------------------------------------------------
NS_IMETHODIMP nsListControlFrame::PluggableEventHandler(nsIPresContext& aPresContext,
nsGUIEvent* aEvent,
nsEventStatus& aEventStatus)
{
HandleEvent(aPresContext, aEvent, aEventStatus);
//aEventStatus = nsEventStatus_eConsumeNoDefault;
return NS_OK;
}
//----------------------------------------------------------------------
NS_IMETHODIMP nsListControlFrame::PluggableGetFrameForPoint(const nsPoint& aPoint,
nsIFrame** aFrame)
{
return GetFrameForPoint(aPoint, aFrame);
}
//----------------------------------------------------------------------
PRInt32 nsListControlFrame::SetContentSelected(nsIFrame * aHitFrame,
nsIContent *& aHitContent,
PRBool aIsSelected)
{
PRInt32 index = 0;
nsIFrame* kid;
mContentFrame->FirstChild(nsnull, &kid);
while (nsnull != kid) {
if (kid == aHitFrame) {
NS_IF_RELEASE(aHitContent);
nsIContent* content;
kid->GetContent(&content);
aHitContent = content;
aHitContent->SetAttribute(kNameSpaceID_HTML, nsHTMLAtoms::kClass, (aIsSelected?kSelectedFocus:kNormal), PR_TRUE);
return index;
}
kid->GetNextSibling(&kid);
index++;
}
return -1;
}
//----------------------------------------------------------------------
void nsListControlFrame::ClearSelection()
{
PRInt32 i = 0;
nsIFrame* kid;
mContentFrame->FirstChild(nsnull, &kid);
while (nsnull != kid) {
nsIContent * content;
kid->GetContent(&content);
if (mIsFrameSelected[i]) {
if (i != mSelectedIndex) {
content->SetAttribute(kNameSpaceID_HTML, nsHTMLAtoms::kClass, kNormal, PR_TRUE);
mIsFrameSelected[i] = PR_FALSE;
}
}
NS_RELEASE(content);
kid->GetNextSibling(&kid);
i++;
}
}
//----------------------------------------------------------------------
void nsListControlFrame::ExtendedSelection(PRInt32 aStartIndex, PRInt32 aEndIndex, PRBool aDoInvert, PRBool aSetValue)
{
PRInt32 startInx;
PRInt32 endInx;
if (aStartIndex < aEndIndex) {
startInx = aStartIndex;
endInx = aEndIndex;
} else {
startInx = aEndIndex;
endInx = aStartIndex;
}
PRInt32 i = 0;
nsIFrame* kid;
PRBool startInverting = PR_FALSE;
mContentFrame->FirstChild(nsnull, &kid);
while (nsnull != kid) {
nsIContent * content;
kid->GetContent(&content);
if (i == startInx) {
startInverting = PR_TRUE;
}
if (startInverting && ((i != mStartExtendedIndex && aDoInvert) || !aDoInvert)) {
if (aDoInvert) {
mIsFrameSelected[i] = !mIsFrameSelected[i];
} else {
mIsFrameSelected[i] = aSetValue;
}
if (i != mSelectedIndex) {
content->SetAttribute(kNameSpaceID_HTML, nsHTMLAtoms::kClass, (mIsFrameSelected[i]?kSelected:kNormal), PR_TRUE);
}
}
if (i == endInx) {
startInverting = PR_FALSE;
}
NS_RELEASE(content);
kid->GetNextSibling(&kid);
i++;
}
}
//----------------------------------------------------------------------
NS_IMETHODIMP nsListControlFrame::HandleLikeListEvent(nsIPresContext& aPresContext,
nsGUIEvent* aEvent,
nsEventStatus& aEventStatus)
{
if (aEvent->message == NS_MOUSE_LEFT_BUTTON_DOWN) {
PRInt32 oldSelectedIndex = mSelectedIndex;
mSelectedIndex = (PRInt32)SetContentSelected(mHitFrame, mHitContent, PR_TRUE);
if (-1 < mSelectedIndex) {
PRBool selected = mIsFrameSelected[mSelectedIndex];
if (mMultipleSelections) {
if (((nsMouseEvent *)aEvent)->isShift) {
selected = PR_TRUE;
if (mEndExtendedIndex == -1) {
mEndExtendedIndex = mSelectedIndex;
ExtendedSelection(mStartExtendedIndex, mEndExtendedIndex, PR_FALSE, PR_TRUE);
} else {
if (mStartExtendedIndex < mEndExtendedIndex) {
if (mSelectedIndex < mStartExtendedIndex) {
ExtendedSelection(mSelectedIndex, mEndExtendedIndex, PR_TRUE, PR_TRUE);
mEndExtendedIndex = mSelectedIndex;
} else if (mSelectedIndex > mEndExtendedIndex) {
ExtendedSelection(mEndExtendedIndex+1, mSelectedIndex, PR_FALSE, PR_TRUE);
mEndExtendedIndex = mSelectedIndex;
} else if (mSelectedIndex < mEndExtendedIndex) {
ExtendedSelection(mSelectedIndex+1, mEndExtendedIndex, PR_FALSE, PR_FALSE);
mEndExtendedIndex = mSelectedIndex;
}
} else if (mStartExtendedIndex > mEndExtendedIndex) {
if (mSelectedIndex > mStartExtendedIndex) {
ExtendedSelection(mEndExtendedIndex, mSelectedIndex, PR_TRUE, PR_TRUE);
mEndExtendedIndex = mSelectedIndex;
} else if (mSelectedIndex < mEndExtendedIndex) {
ExtendedSelection(mStartExtendedIndex+1, mEndExtendedIndex-1, PR_FALSE, PR_TRUE);
mEndExtendedIndex = mSelectedIndex;
} else if (mSelectedIndex > mEndExtendedIndex) {
ExtendedSelection(mEndExtendedIndex, mSelectedIndex-1, PR_FALSE, PR_FALSE);
mEndExtendedIndex = mSelectedIndex;
}
}
}
} else if (((nsMouseEvent *)aEvent)->isControl) {
selected = !selected;
if (nsnull != mSelectedContent) {
if (mHitContent != mSelectedContent) {
mSelectedContent->SetAttribute(kNameSpaceID_HTML, nsHTMLAtoms::kClass, (mIsFrameSelected[oldSelectedIndex]?kSelected:kNormal), PR_TRUE);
} else {
mSelectedContent->SetAttribute(kNameSpaceID_HTML, nsHTMLAtoms::kClass, (selected?kSelectedFocus:kNormal), PR_TRUE);
}
}
} else {
mStartExtendedIndex = mSelectedIndex;
mEndExtendedIndex = -1;
ClearSelection();
selected = PR_TRUE;
}
} else {
if (nsnull != mSelectedContent) {
mSelectedContent->SetAttribute(kNameSpaceID_HTML, nsHTMLAtoms::kClass, kNormal, PR_TRUE);
NS_RELEASE(mSelectedContent);
}
}
mIsFrameSelected[mSelectedIndex] = selected;
//mHitContent->SetAttribute(kNameSpaceID_HTML, nsHTMLAtoms::kClass, (selected?kSelectedFocus:kNormal), PR_TRUE);
mSelectedContent = mHitContent;
mSelectedFrame = mHitFrame;
aEventStatus = nsEventStatus_eConsumeNoDefault;
}
} else if (aEvent->message == NS_MOUSE_LEFT_BUTTON_UP) {
aEventStatus = nsEventStatus_eConsumeNoDefault;
}
return NS_OK;
}
//----------------------------------------------------------------------
NS_IMETHODIMP nsListControlFrame::HandleLikeDropDownListEvent(nsIPresContext& aPresContext,
nsGUIEvent* aEvent,
nsEventStatus& aEventStatus)
{
// Mouse Move behavior is as follows:
// When the DropDown occurs, if an item is selected it displayed as being selected.
// It may or may not be currently visible, when the mouse is moved across any item
// in the the list it is displayed as the currently selected item.
// (Selection doesn't actually occur until the mouse is released, or lciked and released)
if (aEvent->message == NS_MOUSE_MOVE) {
// If the DropDown is currently has a selected item
// then clear the selected item
if (nsnull != mSelectedContent) {
mSelectedContent->SetAttribute(kNameSpaceID_HTML, nsHTMLAtoms::kClass, kNormal, PR_TRUE);
NS_RELEASE(mSelectedContent);
}
// Now check to see if the newly hit frame is different
// from the currently hit frame
if (nsnull != mHitFrame && mHitFrame != mCurrentHitFrame) {
// Since the new frame is different then clear the selection on the old frame (the current frame)
if (nsnull != mCurrentHitContent) {
mCurrentHitContent->SetAttribute(kNameSpaceID_HTML, nsHTMLAtoms::kClass, kNormal, PR_TRUE);
NS_RELEASE(mCurrentHitContent);
}
// Find the new hit "content" from the hit frame and select it
SetContentSelected(mHitFrame, mHitContent, PR_TRUE);
// Now cache the the newly hit frame and content as the "current" values
mCurrentHitFrame = mHitFrame;
mCurrentHitContent = mHitContent;
}
} else if (aEvent->message == NS_MOUSE_LEFT_BUTTON_UP) {
// Start by finding the newly "hit" content from the hit frame
PRInt32 index = SetContentSelected(mHitFrame, mHitContent, PR_FALSE);
if (-1 < index) {
nsIDOMHTMLOptionElement* option = nsnull;
nsresult rv = mHitContent->QueryInterface(kIDOMHTMLOptionElementIID, (void**)&option);
if (NS_OK == rv) {
nsAutoString text;
if (NS_CONTENT_ATTR_HAS_VALUE == option->GetText(text)) {
mSelectionStr = text;
}
NS_IF_RELEASE(mSelectedContent);
mSelectedIndex = index;
// Clean up frames before disappearing
if (nsnull != mSelectedContent) {
mSelectedContent->SetAttribute(kNameSpaceID_HTML, nsHTMLAtoms::kClass, kNormal, PR_TRUE);
NS_RELEASE(mSelectedContent);
}
if (nsnull != mHitContent) {
mHitContent->SetAttribute(kNameSpaceID_HTML, nsHTMLAtoms::kClass, kNormal, PR_TRUE);
NS_RELEASE(mHitContent);
}
if (nsnull != mCurrentHitContent) {
mCurrentHitContent->SetAttribute(kNameSpaceID_HTML, nsHTMLAtoms::kClass, kNormal, PR_TRUE);
NS_RELEASE(mCurrentHitContent);
}
NS_RELEASE(option);
}
if (mComboboxFrame) {
mComboboxFrame->ListWasSelected(&aPresContext);
}
}
}
return NS_OK;
}
//----------------------------------------------------------------------
NS_IMETHODIMP nsListControlFrame::HandleEvent(nsIPresContext& aPresContext,
nsGUIEvent* aEvent,
nsEventStatus& aEventStatus)
{
/* const char * desc[] = {"NS_MOUSE_MOVE",
"NS_MOUSE_LEFT_BUTTON_UP",
"NS_MOUSE_LEFT_BUTTON_DOWN",
"<NA>","<NA>","<NA>","<NA>","<NA>","<NA>","<NA>",
"NS_MOUSE_MIDDLE_BUTTON_UP",
"NS_MOUSE_MIDDLE_BUTTON_DOWN",
"<NA>","<NA>","<NA>","<NA>","<NA>","<NA>","<NA>","<NA>",
"NS_MOUSE_RIGHT_BUTTON_UP",
"NS_MOUSE_RIGHT_BUTTON_DOWN",
"NS_MOUSE_ENTER",
"NS_MOUSE_EXIT",
"NS_MOUSE_LEFT_DOUBLECLICK",
"NS_MOUSE_MIDDLE_DOUBLECLICK",
"NS_MOUSE_RIGHT_DOUBLECLICK",
"NS_MOUSE_LEFT_CLICK",
"NS_MOUSE_MIDDLE_CLICK",
"NS_MOUSE_RIGHT_CLICK"};
int inx = aEvent->message-NS_MOUSE_MESSAGE_START;
if (inx >= 0 && inx <= (NS_MOUSE_RIGHT_CLICK-NS_MOUSE_MESSAGE_START)) {
printf("Mouse in ListFrame %s [%d]\n", desc[inx], aEvent->message);
} else {
printf("Mouse in ListFrame <UNKNOWN> [%d]\n", aEvent->message);
}*/
if (nsEventStatus_eConsumeNoDefault == aEventStatus) {
return NS_OK;
}
const nsStyleDisplay* disp = (const nsStyleDisplay*)mStyleContext->GetStyleData(eStyleStruct_Display);
if (!disp->mVisible) {
return NS_OK;
}
if(nsEventStatus_eConsumeNoDefault != aEventStatus) {
aEventStatus = nsEventStatus_eConsumeNoDefault;
if (mInDropDownMode) {
HandleLikeDropDownListEvent(aPresContext, aEvent, aEventStatus);
} else {
HandleLikeListEvent(aPresContext, aEvent, aEventStatus);
}
}
return NS_OK;
}
//----------------------------------------------------------------------
NS_IMETHODIMP
nsListControlFrame::SetInitialChildList(nsIPresContext& aPresContext,
nsIAtom* aListName,
nsIFrame* aChildList)
{
mContentFrame = aChildList;
#ifdef PLUGGABLE_EVENTS
mContentFrame->SetPluggableEventListener(this);
#endif
if (!mInDropDownMode) {
nsFormFrame::AddFormControlFrame(aPresContext, *this);
}
//aChildList->FirstChild(nsnull, mContentFrame);
if (!mIsInitializedFromContent) {
InitializeFromContent();
}
return nsScrollFrame::SetInitialChildList(aPresContext, aListName, aChildList);
}
//----------------------------------------------------------------------
/*nsresult
nsListControlFrame::AppendNewFrames(nsIPresContext& aPresContext,
nsIFrame* aNewFrame)
{
return nsScrollFrame::AppendNewFrames(aPresContext, aNewFrame);
}
//----------------------------------------------------------------------
nsresult
nsListControlFrame::InsertNewFrame(nsIPresContext& aPresContext,
nsBaseIBFrame* aParentFrame,
nsIFrame* aNewFrame,
nsIFrame* aPrevSibling)
{
return nsScrollFrame::InsertNewFrame(aPresContext, aParentFrame, aNewFrame, aPrevSibling);
}
//----------------------------------------------------------------------
nsresult
nsListControlFrame::DoRemoveFrame(nsBlockReflowState& aState,
nsBaseIBFrame* aParentFrame,
nsIFrame* aDeletedFrame,
nsIFrame* aPrevSibling)
{
return nsScrollFrame::DoRemoveFrame(aState, aParentFrame, aDeletedFrame, aPrevSibling);
}*/
//----------------------------------------------------------------------
NS_IMETHODIMP
nsListControlFrame::Init(nsIPresContext& aPresContext,
nsIContent* aContent,
nsIFrame* aParent,
nsIStyleContext* aContext,
nsIFrame* aPrevInFlow)
{
nsresult result = nsScrollFrame::Init(aPresContext, aContent, aParent, aContext,
aPrevInFlow);
/*if (NS_OK == result) {
nsIDOMNode* node;
if (mContent && (NS_OK == mContent->QueryInterface(kIDOMNodeIID, (void**) &node))) {
AddEventListener(node);
NS_RELEASE(node);
}
}*/
if (NS_OK == result) {
nsIDOMHTMLSelectElement* select;
if (mContent && (NS_OK == mContent->QueryInterface(kIDOMHTMLSelectElementIID, (void**) &select))) {
select->GetMultiple(&mMultipleSelections);
select->GetSize(&mNumRows);
NS_RELEASE(select);
}
}
return result;
}
//----------------------------------------------------------------------
NS_IMETHODIMP
nsListControlFrame::GetMaxLength(PRInt32* aSize)
{
*aSize = -1;
nsresult result = NS_CONTENT_ATTR_NOT_THERE;
nsIHTMLContent* content = nsnull;
mContent->QueryInterface(kIHTMLContentIID, (void**) &content);
if (nsnull != content) {
nsHTMLValue value;
result = content->GetHTMLAttribute(nsHTMLAtoms::maxlength, value);
if (eHTMLUnit_Integer == value.GetUnit()) {
*aSize = value.GetIntValue();
}
NS_RELEASE(content);
}
return result;
}
//----------------------------------------------------------------------
nsresult
nsListControlFrame::GetSizeFromContent(PRInt32* aSize) const
{
*aSize = -1;
nsresult result = NS_CONTENT_ATTR_NOT_THERE;
nsIHTMLContent* content = nsnull;
mContent->QueryInterface(kIHTMLContentIID, (void**) &content);
if (nsnull != content) {
nsHTMLValue value;
result = content->GetHTMLAttribute(nsHTMLAtoms::size, value);
if (eHTMLUnit_Integer == value.GetUnit()) {
*aSize = value.GetIntValue();
}
NS_RELEASE(content);
}
return result;
}
//----------------------------------------------------------------------
void
nsListControlFrame::GetScrollBarDimensions(nsIPresContext& aPresContext,
nscoord &aWidth, nscoord &aHeight)
{
aWidth = 0;
aHeight = 0;
float scale;
nsCOMPtr<nsIDeviceContext> dx;
aPresContext.GetDeviceContext(getter_AddRefs(dx));
if (dx) {
float sbWidth;
float sbHeight;
dx->GetCanonicalPixelScale(scale);
dx->GetScrollBarDimensions(sbWidth, sbHeight);
aWidth = PRInt32(sbWidth * scale);
aHeight = PRInt32(sbHeight * scale);
} //else {
//aWidth = 19 * sp2t;
//aHeight = scrollbarWidth;
//}
}
//----------------------------------------------------------------------
nscoord
nsListControlFrame::GetVerticalBorderWidth(float aPixToTwip) const
{
return NSIntPixelsToTwips(3, aPixToTwip);
}
//----------------------------------------------------------------------
nscoord
nsListControlFrame::GetHorizontalBorderWidth(float aPixToTwip) const
{
return GetVerticalBorderWidth(aPixToTwip);
}
//----------------------------------------------------------------------
nscoord
nsListControlFrame::GetVerticalInsidePadding(float aPixToTwip,
nscoord aInnerHeight) const
{
return NSIntPixelsToTwips(0, aPixToTwip); // XXX this is really
}
//----------------------------------------------------------------------
nscoord
nsListControlFrame::GetHorizontalInsidePadding(nsIPresContext& aPresContext,
float aPixToTwip,
nscoord aInnerWidth,
nscoord aCharWidth) const
{
return GetVerticalInsidePadding(aPixToTwip, aInnerWidth);
}
//----------------------------------------------------------------------
void
nsListControlFrame::GetDesiredSize(nsIPresContext* aPresContext,
const nsHTMLReflowState& aReflowState,
nsHTMLReflowMetrics& aDesiredLayoutSize,
nsSize& aDesiredWidgetSize)
{
nsIDOMHTMLSelectElement* select = GetSelect(mContent);
if (!select) {
return;
}
nsIDOMHTMLCollection* options = GetOptions(mContent, select);
if (!options) {
NS_RELEASE(select);
return;
}
// get the css size
nsSize styleSize;
nsFormControlFrame::GetStyleSize(*aPresContext, aReflowState, styleSize);
// get the size of the longest option
PRInt32 maxWidth = 1;
PRUint32 numOptions;
options->GetLength(&numOptions);
for (PRUint32 i = 0; i < numOptions; i++) {
nsIDOMHTMLOptionElement* option = GetOption(*options, i);
if (option) {
//option->CompressContent();
nsAutoString text;
if (NS_CONTENT_ATTR_HAS_VALUE != option->GetText(text)) {
continue;
}
nsSize textSize;
// use the style for the select rather that the option, since widgets don't support it
nsFormControlHelper::GetTextSize(*aPresContext, this, text, textSize, aReflowState.rendContext);
if (textSize.width > maxWidth) {
maxWidth = textSize.width;
}
NS_RELEASE(option);
}
}
PRInt32 rowHeight = 0;
nsSize desiredSize;
nsSize minSize;
PRBool widthExplicit, heightExplicit;
nsInputDimensionSpec textSpec(nsnull, PR_FALSE, nsnull, nsnull,
maxWidth, PR_TRUE, nsHTMLAtoms::size, 1);
// XXX fix CalculateSize to return PRUint32
mNumRows = (PRUint32)nsFormControlHelper::CalculateSize (aPresContext, aReflowState.rendContext, this, styleSize,
textSpec, desiredSize, minSize, widthExplicit,
heightExplicit, rowHeight);
float sp2t;
float p2t;
aPresContext->GetPixelsToTwips(&p2t);
aPresContext->GetScaledPixelsToTwips(&sp2t);
//nscoord scrollbarWidth = 0;
//nscoord scrollbarHeight = 0;
//GetScrollBarDimensions(*aPresContext, scrollbarWidth, scrollbarHeight);
if (mInDropDownMode) {
//PRUint32 numOptions;
//options->GetLength(&numOptions);
nscoord extra = desiredSize.height - (rowHeight * mNumRows);
mNumRows = (numOptions > 20 ? 20 : numOptions);
desiredSize.height = (mNumRows * rowHeight) + extra;
if (mNumRows < 21) {
//calcSize.width += scrollbarWidth;
}
}
aDesiredLayoutSize.width = desiredSize.width;
// account for vertical scrollbar, if present
//if (!widthExplicit && ((mNumRows < numOptions) || mIsComboBox)) {
//if (!widthExplicit && (mNumRows < (PRInt32)numOptions)) {
// aDesiredLayoutSize.width += scrollbarWidth;
// }
// XXX put this in widget library, combo boxes are fixed height (visible part)
//aDesiredLayoutSize.height = (mIsComboBox)
// ? rowHeight + (2 * GetVerticalInsidePadding(p2t, rowHeight))
// : calcSize.height;
aDesiredLayoutSize.height = desiredSize.height;
aDesiredLayoutSize.ascent = aDesiredLayoutSize.height;
aDesiredLayoutSize.descent = 0;
// XXX When this code is working, max element size needs to be set properly from CalculateSize
// above. look at some of the other form control to see how to do it.
aDesiredWidgetSize.width = maxWidth;
aDesiredWidgetSize.height = rowHeight;
//if (mIsComboBox) { // add in pull down size
// PRInt32 extra = NSIntPixelsToTwips(10, p2t*scale);
// aDesiredWidgetSize.height += (rowHeight * (numOptions > 20 ? 20 : numOptions)) + extra;
//}
// override the width and height for a combo box that has already got a widget
//if (mWidget && mIsComboBox) {
// nscoord ignore;
// GetWidgetSize(*aPresContext, ignore, aDesiredLayoutSize.height);
// aDesiredLayoutSize.ascent = aDesiredLayoutSize.height;
//}
NS_RELEASE(select);
NS_RELEASE(options);
}
//----------------------------------------------------------------------
NS_IMETHODIMP
nsListControlFrame::GetMultiple(PRBool* aMultiple, nsIDOMHTMLSelectElement* aSelect)
{
if (!aSelect) {
nsIDOMHTMLSelectElement* select = nsnull;
nsresult result = mContent->QueryInterface(kIDOMHTMLSelectElementIID, (void**)&select);
if ((NS_OK == result) && select) {
result = select->GetMultiple(aMultiple);
NS_RELEASE(select);
}
return result;
} else {
return aSelect->GetMultiple(aMultiple);
}
}
//----------------------------------------------------------------------
nsIDOMHTMLSelectElement*
nsListControlFrame::GetSelect(nsIContent * aContent)
{
nsIDOMHTMLSelectElement* select = nsnull;
nsresult result = aContent->QueryInterface(kIDOMHTMLSelectElementIID, (void**)&select);
if ((NS_OK == result) && select) {
return select;
} else {
return nsnull;
}
}
//----------------------------------------------------------------------
NS_IMETHODIMP
nsListControlFrame::AboutToDropDown()
{
PRInt32 i = 0;
nsIFrame* kid;
mContentFrame->FirstChild(nsnull, &kid);
while (nsnull != kid) {
nsIContent * content;
kid->GetContent(&content);
if (i == mSelectedIndex) {
mSelectedContent = content;
mSelectedFrame = kid;
mSelectedContent->SetAttribute(kNameSpaceID_HTML, nsHTMLAtoms::kClass, kSelected, PR_TRUE);
return NS_OK;
}
NS_RELEASE(content);
kid->GetNextSibling(&kid);
i++;
}
return NS_OK;
}
//----------------------------------------------------------------------
void
nsListControlFrame::InitializeFromContent(PRBool aDoDisplay)
{
PRInt32 i;
for (i=0;i<mMaxNumSelections;i++) {
mIsFrameSelected[i] = PR_FALSE;
}
i = 0;
nsIFrame* kid;
mContentFrame->FirstChild(nsnull, &kid);
while (nsnull != kid) {
nsIContent * content;
kid->GetContent(&content);
nsIDOMHTMLOptionElement* option = nsnull;
nsresult result = content->QueryInterface(kIDOMHTMLOptionElementIID, (void**)&option);
if (result == NS_OK) {
PRBool selected;
option->GetDefaultSelected(&selected);
option->GetSelected(&selected);
mIsFrameSelected[i] = selected;
if (mInDropDownMode) {
if (selected) {
nsAutoString text;
if (NS_CONTENT_ATTR_HAS_VALUE == option->GetText(text)) {
mSelectionStr = text;
}
mSelectedIndex = i;
NS_RELEASE(option);
mSelectedContent = content;
mSelectedFrame = kid;
return;
}
} else {
if (selected && aDoDisplay) {
content->SetAttribute(kNameSpaceID_HTML, nsHTMLAtoms::kClass, (selected?kSelected:kNormal), PR_TRUE);
}
}
NS_RELEASE(option);
}
NS_RELEASE(content);
kid->GetNextSibling(&kid);
i++;
}
}
//----------------------------------------------------------------------
nsIDOMHTMLCollection*
nsListControlFrame::GetOptions(nsIContent * aContent, nsIDOMHTMLSelectElement* aSelect)
{
nsIDOMHTMLCollection* options = nsnull;
if (!aSelect) {
nsIDOMHTMLSelectElement* select = GetSelect(aContent);
if (select) {
select->GetOptions(&options);
NS_RELEASE(select);
return options;
} else {
return nsnull;
}
} else {
aSelect->GetOptions(&options);
return options;
}
}
//----------------------------------------------------------------------
nsIDOMHTMLOptionElement*
nsListControlFrame::GetOption(nsIDOMHTMLCollection& aCollection, PRUint32 aIndex)
{
nsIDOMNode* node = nsnull;
if ((NS_OK == aCollection.Item(aIndex, &node)) && node) {
nsIDOMHTMLOptionElement* option = nsnull;
node->QueryInterface(kIDOMHTMLOptionElementIID, (void**)&option);
NS_RELEASE(node);
return option;
}
return nsnull;
}
//----------------------------------------------------------------------
PRBool
nsListControlFrame::GetOptionValue(nsIDOMHTMLCollection& aCollection, PRUint32 aIndex, nsString& aValue)
{
PRBool status = PR_FALSE;
nsIDOMHTMLOptionElement* option = GetOption(aCollection, aIndex);
if (option) {
nsresult result = option->GetValue(aValue);
if (aValue.Length() > 0) {
status = PR_TRUE;
} else {
result = option->GetText(aValue);
if (aValue.Length() > 0) {
status = PR_TRUE;
}
}
NS_RELEASE(option);
}
return status;
}
//----------------------------------------------------------------------
NS_IMETHODIMP
nsListControlFrame::Deselect()
{
PRInt32 i;
for (i=0;i<mMaxNumSelections;i++) {
mIsFrameSelected[i] = PR_FALSE;
// update visual here
}
mNumSelections = 0;
return NS_OK;
}
#if 0
//------------------------------------------------------------------
nscoord
nsListControlFrame::GetTextSize(nsIPresContext& aPresContext, nsListControlFrame* aFrame,
const nsString& aString, nsSize& aSize,
nsIRenderingContext *aRendContext)
{
nsFont font(aPresContext.GetDefaultFixedFont());
aFrame->GetFont(&aPresContext, font);
nsIDeviceContext* deviceContext = aPresContext.GetDeviceContext();
nsIFontMetrics* fontMet;
deviceContext->GetMetricsFor(font, fontMet);
aRendContext->SetFont(fontMet);
aRendContext->GetWidth(aString, aSize.width);
fontMet->GetHeight(aSize.height);
char char1, char2;
nsCompatibility mode = nsFormControlHelper::GetRepChars(aPresContext, char1, char2);
nscoord char1Width, char2Width;
aRendContext->GetWidth(char1, char1Width);
aRendContext->GetWidth(char2, char2Width);
NS_RELEASE(fontMet);
NS_RELEASE(deviceContext);
if (eCompatibility_Standard == mode) {
return ((char1Width + char2Width) / 2) + 1;
} else {
return char1Width;
}
}
//------------------------------------------------------------------
nscoord
nsListControlFrame::GetTextSize(nsIPresContext& aPresContext, nsListControlFrame* aFrame,
PRInt32 aNumChars, nsSize& aSize,
nsIRenderingContext *aRendContext)
{
nsAutoString val;
char char1, char2;
nsFormControlHelper::GetRepChars(aPresContext, char1, char2);
int i;
for (i = 0; i < aNumChars; i+=2) {
val += char1;
}
for (i = 1; i < aNumChars; i+=2) {
val += char2;
}
return GetTextSize(aPresContext, aFrame, val, aSize, aRendContext);
}
//------------------------------------------------------------------
PRInt32
nsListControlFrame::CalculateSize (nsIPresContext* aPresContext, nsListControlFrame* aFrame,
const nsSize& aCSSSize, nsInputDimensionSpec& aSpec,
nsSize& aBounds, PRBool& aWidthExplicit,
PRBool& aHeightExplicit, nscoord& aRowHeight,
nsIRenderingContext *aRendContext)
{
nscoord charWidth = 0;
PRInt32 numRows = ATTR_NOTSET;
aWidthExplicit = PR_FALSE;
aHeightExplicit = PR_FALSE;
aBounds.width = CSS_NOTSET;
aBounds.height = CSS_NOTSET;
nsSize textSize(0,0);
nsIContent* iContent = nsnull;
aFrame->GetContent((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);
// determine the width
nscoord adjSize;
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) {
col = (col <= 0) ? 15 : col;
aBounds.width = NSIntPixelsToTwips(col, p2t);
}
else {
col = (col <= 0) ? 1 : col;
charWidth = GetTextSize(*aPresContext, aFrame, col, aBounds, aRendContext);
aRowHeight = aBounds.height; // XXX aBounds.height has CSS_NOTSET
}
if (aSpec.mColSizeAttrInPixels) {
aWidthExplicit = PR_TRUE;
}
}
else {
if (CSS_NOTSET != aCSSSize.width) { // css provides width
aBounds.width = (aCSSSize.width > 0) ? aCSSSize.width : 1;
aWidthExplicit = PR_TRUE;
}
else {
if (NS_CONTENT_ATTR_HAS_VALUE == valStatus) { // use width of initial value
charWidth = GetTextSize(*aPresContext, aFrame, valAttr, aBounds, aRendContext);
}
else if (aSpec.mColDefaultValue) { // use default value
charWidth = GetTextSize(*aPresContext, aFrame, *aSpec.mColDefaultValue, aBounds, aRendContext);
}
else if (aSpec.mColDefaultSizeInPixels) { // use default width in pixels
charWidth = GetTextSize(*aPresContext, aFrame, 1, aBounds, aRendContext);
aBounds.width = aSpec.mColDefaultSize;
}
else { // use default width in num characters
charWidth = GetTextSize(*aPresContext, aFrame, aSpec.mColDefaultSize, aBounds, aRendContext);
}
aRowHeight = aBounds.height; // XXX aBounds.height has CSS_NOTSET
}
}
// 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());
adjSize = (rowAttrInt > 0) ? rowAttrInt : 1;
if (0 == charWidth) {
charWidth = GetTextSize(*aPresContext, aFrame, 1, textSize, aRendContext);
aBounds.height = textSize.height * adjSize;
aRowHeight = textSize.height;
numRows = adjSize;
}
else {
aBounds.height = aBounds.height * adjSize;
}
}
else if (CSS_NOTSET != aCSSSize.height) { // css provides height
aBounds.height = (aCSSSize.height > 0) ? aCSSSize.height : 1;
aHeightExplicit = PR_TRUE;
}
else { // use default height in num lines
if (0 == charWidth) {
charWidth = GetTextSize(*aPresContext, aFrame, 1, textSize, aRendContext);
aBounds.height = textSize.height * aSpec.mRowDefaultSize;
aRowHeight = textSize.height;
}
else {
aBounds.height = aBounds.height * aSpec.mRowDefaultSize;
}
}
if ((0 == charWidth) || (0 == textSize.width)) {
charWidth = GetTextSize(*aPresContext, aFrame, 1, textSize, aRendContext);
aRowHeight = textSize.height;
}
// add inside padding if necessary
if (!aWidthExplicit) {
aBounds.width += (2 * aFrame->GetHorizontalInsidePadding(*aPresContext, p2t, aBounds.width, charWidth));
}
if (!aHeightExplicit) {
aBounds.height += (2 * aFrame->GetVerticalInsidePadding(p2t, textSize.height));
}
NS_RELEASE(hContent);
if (ATTR_NOTSET == numRows) {
numRows = aBounds.height / aRowHeight;
}
NS_RELEASE(iContent);
return numRows;
}
#endif
//----------------------------------------------------------------------
//----------------------------------------------------------------------
//----------------------------------------------------------------------
//----------------------------------------------------------------------
//----------------------------------------------------------------------
// nsHTMLContainerFrame
//----------------------------------------------------------------------
PRIntn
nsListControlFrame::GetSkipSides() const
{
return 0;
}
//----------------------------------------------------------------------
//----------------------------------------------------------------------
//----------------------------------------------------------------------
//----------------------------------------------------------------------
//----------------------------------------------------------------------
// nsIFormControlFrame
//----------------------------------------------------------------------
NS_IMETHODIMP
nsListControlFrame::GetType(PRInt32* aType) const
{
/*nsresult result = NS_FORM_NOTOK;
if (mContent) {
nsIFormControl* formControl = nsnull;
result = mContent->QueryInterface(kIFormControlIID, (void**)&formControl);
if ((NS_OK == result) && formControl) {
result = formControl->GetType(aType);
NS_RELEASE(formControl);
}
}
return result;
*/
*aType = NS_FORM_SELECT;
return NS_OK;
}
void
nsListControlFrame::SetFormFrame(nsFormFrame* aFormFrame)
{
mFormFrame = aFormFrame;
}
//----------------------------------------------------------------------
PRBool
nsListControlFrame::IsSuccessful(nsIFormControlFrame* aSubmitter)
{
nsAutoString name;
return (NS_CONTENT_ATTR_HAS_VALUE == GetName(&name));
}
//----------------------------------------------------------------------
void
nsListControlFrame::MouseClicked(nsIPresContext* aPresContext)
{
/*nsIRadioButton* radioWidget;
if (mWidget && (NS_OK == mWidget->QueryInterface(kIRadioIID, (void**)&radioWidget))) {
radioWidget->SetState(PR_TRUE);
NS_RELEASE(radioWidget);
if (mFormFrame) {
mFormFrame->OnRadioChecked(*this);
}
}*/
}
//----------------------------------------------------------------------
PRInt32
nsListControlFrame::GetMaxNumValues()
{
PRBool multiple;
GetMultiple(&multiple);
if (multiple) {
PRUint32 length = 0;
nsIDOMHTMLCollection* options = GetOptions(mContent);
if (options) {
options->GetLength(&length);
}
return (PRInt32)length; // XXX fix return on GetMaxNumValues
} else {
return 1;
}
}
//----------------------------------------------------------------------
void
nsListControlFrame::Reset()
{
SetFocus(PR_TRUE, PR_TRUE);
nsIDOMHTMLCollection* options = GetOptions(mContent);
if (!options) {
return;
}
PRUint32 numOptions;
options->GetLength(&numOptions);
Deselect();
for (PRUint32 i = 0; i < numOptions; i++) {
nsIDOMHTMLOptionElement* option = GetOption(*options, i);
if (option) {
PRBool selected = PR_FALSE;
option->GetSelected(&selected);
if (selected) {
mIsFrameSelected[i] = PR_TRUE;
}
NS_RELEASE(option);
}
}
// update visual here
NS_RELEASE(options);
}
//----------------------------------------------------------------------
NS_IMETHODIMP
nsListControlFrame::GetName(nsString* aResult)
{
nsresult result = NS_FORM_NOTOK;
if (mContent) {
nsIHTMLContent* formControl = nsnull;
result = mContent->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;
}
//----------------------------------------------------------------------
/*PRBool
nsListControlFrame::GetNamesValues(PRInt32 aMaxNumValues, PRInt32& aNumValues,
nsString* aValues, nsString* aNames)
{
aNumValues = 0;
return PR_FALSE;
}*/
//----------------------------------------------------------------------
PRBool
nsListControlFrame::GetNamesValues(PRInt32 aMaxNumValues, PRInt32& aNumValues,
nsString* aValues, nsString* aNames)
{
PRBool status = PR_FALSE;
aNumValues = 0;
nsAutoString name;
nsresult result = GetName(&name);
if ((aMaxNumValues <= 0) || (NS_CONTENT_ATTR_NOT_THERE == result)) {
return PR_FALSE;
}
nsIDOMHTMLCollection* options = GetOptions(mContent);
if (!options) {
return PR_FALSE;
}
NS_ASSERTION(aMaxNumValues >= mNumSelections, "invalid max num values");
if (mNumSelections >= 0) {
PRInt32* selections = new PRInt32[mNumSelections];
PRInt32 i = 0;
PRInt32 inx;
for (inx=0;i<mNumSelections;i++) {
if (mIsFrameSelected[inx]) {
selections[i++] = inx;
}
}
aNumValues = 0;
for (i = 0; i < mNumSelections; i++) {
nsAutoString value;
GetOptionValue(*options, selections[i], value);
aNames[i] = name;
aValues[i] = value;
aNumValues++;
}
delete[] selections;
status = PR_TRUE;
}
NS_RELEASE(options);
return status;
}
//----------------------------------------------------------------------
// native widgets don't unset focus explicitly and don't need to repaint
void
nsListControlFrame::SetFocus(PRBool aOn, PRBool aRepaint)
{
// XXX I don't know whether to use the aRepaint flag as last param
// in this call?
if (mSelectedContent) {
mSelectedContent->SetAttribute(kNameSpaceID_HTML, nsHTMLAtoms::kClass, (aOn?kSelectedFocus:kNormal), PR_TRUE);
}
}
//----------------------------------------------------------------------
// nsIListControlFrame
//----------------------------------------------------------------------
NS_IMETHODIMP
nsListControlFrame::SetComboboxFrame(nsIFrame* aComboboxFrame)
{
static NS_DEFINE_IID(kIComboboxIID, NS_ICOMBOBOXCONTROLFRAME_IID);
if (aComboboxFrame && (NS_OK == aComboboxFrame->QueryInterface(kIComboboxIID, (void**) &mComboboxFrame))) {
mInDropDownMode = PR_TRUE;
}
return NS_OK;
}
//----------------------------------------------------------------------
NS_IMETHODIMP
nsListControlFrame::GetSelectedItem(nsString & aStr)
{
aStr = mSelectionStr;
return NS_OK;
}
NS_IMETHODIMP nsListControlFrame::SetProperty(nsIAtom* aName, const nsString& aValue)
{
return NS_OK;
}
NS_IMETHODIMP nsListControlFrame::GetProperty(nsIAtom* aName, nsString& aValue)
{
return NS_OK;
}
#if 0
//----------------------------------------------------------------------
NS_IMETHODIMP
nsListControlFrame::DeleteFrame(nsIPresContext& aPresContext)
{
nsIDOMNode* node;
if (mContent && (NS_OK == mContent->QueryInterface(kIDOMNodeIID, (void**) &node))) {
RemoveEventListener(node);
NS_RELEASE(node);
}
return nsScrollFrame::DeleteFrame(aPresContext);
}
//-----------------------------------------------------------------
nsresult nsListControlFrame::Focus(nsIDOMEvent* aEvent)
{
return NS_OK;
}
//-----------------------------------------------------------------
nsresult nsListControlFrame::Blur(nsIDOMEvent* aEvent)
{
return NS_OK;
}
//-----------------------------------------------------------------
nsresult nsListControlFrame::ProcessEvent(nsIDOMEvent* aEvent)
{
return NS_OK;
}
//-----------------------------------------------------------------
NS_IMETHODIMP nsListControlFrame::AddEventListener(nsIDOMNode * aNode)
{
nsIDOMEventReceiver * receiver;
if (NS_OK == aNode->QueryInterface(kIDOMEventReceiverIID, (void**) &receiver)) {
receiver->AddEventListener((nsIDOMFocusListener*)this, kIDOMFocusListenerIID);
NS_RELEASE(receiver);
return NS_OK;
}
return NS_ERROR_FAILURE;
}
//-----------------------------------------------------------------
NS_IMETHODIMP nsListControlFrame::RemoveEventListener(nsIDOMNode * aNode)
{
nsIDOMEventReceiver * receiver;
if (NS_OK == aNode->QueryInterface(kIDOMEventReceiverIID, (void**) &receiver)) {
receiver->RemoveEventListener(this, kIDOMFocusListenerIID);
NS_RELEASE(receiver);
return NS_OK;
}
return NS_ERROR_FAILURE;
}
#endif
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