mozilla
/
gecko-dev
зеркало из https://github.com/mozilla/gecko-dev.git
1
0
Форкнуть 0
Код Задачи Пакеты Проекты Релизы Вики Активность
gecko-dev/layout/generic/nsFrameSetFrame.cpp

1709 строки
56 KiB
C++
Исходник Ответственный История

/* -*- 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 "NPL"); you may not use this file except in
* compliance with the NPL. You may obtain a copy of the NPL at
* http://www.mozilla.org/NPL/
*
* Software distributed under the NPL is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
* for the specific language governing rights and limitations under the
* NPL.
*
* The Initial Developer of this code under the NPL is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All Rights
* Reserved.
*/
#include "nsFrameSetFrame.h"
#include "nsIHTMLContent.h"
#include "nsLeafFrame.h"
#include "nsHTMLContainerFrame.h"
#include "nsIWebShell.h"
#include "nsIPresContext.h"
#include "nsIPresShell.h"
#include "nsHTMLIIDs.h"
#include "nsRepository.h"
#include "nsIStreamListener.h"
#include "nsIURL.h"
#include "nsIDocument.h"
#include "nsIView.h"
#include "nsIViewManager.h"
#include "nsWidgetsCID.h"
#include "nsViewsCID.h"
#include "nsHTMLAtoms.h"
#include "nsIScrollableView.h"
#include "nsStyleCoord.h"
#include "nsStyleConsts.h"
#include "nsIStyleContext.h"
#include "nsIDocumentLoader.h"
#include "nsGenericHTMLElement.h"
#include "nsHTMLParts.h"
// masks for mEdgeVisibility
#define LEFT_VIS 0x0001
#define RIGHT_VIS 0x0002
#define TOP_VIS 0x0004
#define BOTTOM_VIS 0x0008
#define ALL_VIS 0x000F
#define NONE_VIS 0x0000
static nsPoint NULL_POINT(-1000000,1000000);
static PRInt32 LEFT_EDGE = -1;
static PRInt32 RIGHT_EDGE = 1000000;
static NS_DEFINE_IID(kIFramesetFrameIID, NS_IFRAMESETFRAME_IID);
/*******************************************************************************
* nsHTMLFramesetBorderFrame
******************************************************************************/
class nsHTMLFramesetBorderFrame : public nsLeafFrame {
public:
NS_IMETHOD ListTag(FILE* out = stdout) const;
NS_IMETHOD HandleEvent(nsIPresContext& aPresContext,
nsGUIEvent* aEvent,
nsEventStatus& aEventStatus);
NS_IMETHOD Paint(nsIPresContext& aPresContext,
nsIRenderingContext& aRenderingContext,
const nsRect& aDirtyRect);
NS_IMETHOD Reflow(nsIPresContext& aPresContext,
nsHTMLReflowMetrics& aDesiredSize,
const nsHTMLReflowState& aReflowState,
nsReflowStatus& aStatus);
PRBool GetVisibility() { return mVisibility; }
void SetVisibility(PRBool aVisibility);
void SetColor(nscolor aColor);
protected:
nsHTMLFramesetBorderFrame(nsIContent* aContent, nsIFrame* aParentFrame,
PRInt32 aWidth, PRBool aVertical, PRBool aVisible);
virtual ~nsHTMLFramesetBorderFrame();
virtual void GetDesiredSize(nsIPresContext* aPresContext,
const nsHTMLReflowState& aReflowState,
nsHTMLReflowMetrics& aDesiredSize);
PRInt32 mWidth;
PRBool mVertical;
PRBool mVisibility;
nscolor mColor;
// the prev and next neighbors are indexes into the row (for a horizontal border) or col (for
// a vertical border) of nsHTMLFramesetFrames or nsHTMLFrames
PRInt32 mPrevNeighbor;
PRInt32 mNextNeighbor;
PRBool mCanResize;
friend class nsHTMLFramesetFrame;
};
/*******************************************************************************
* nsHTMLFramesetBlankFrame
******************************************************************************/
class nsHTMLFramesetBlankFrame : public nsLeafFrame {
public:
NS_IMETHOD List(FILE* out = stdout, PRInt32 aIndent = 0) const;
NS_IMETHOD Paint(nsIPresContext& aPresContext,
nsIRenderingContext& aRenderingContext,
const nsRect& aDirtyRect);
NS_IMETHOD Reflow(nsIPresContext& aPresContext,
nsHTMLReflowMetrics& aDesiredSize,
const nsHTMLReflowState& aReflowState,
nsReflowStatus& aStatus);
protected:
nsHTMLFramesetBlankFrame(nsIContent* aContent, nsIFrame* aParentFrame);
virtual ~nsHTMLFramesetBlankFrame();
virtual void GetDesiredSize(nsIPresContext* aPresContext,
const nsHTMLReflowState& aReflowState,
nsHTMLReflowMetrics& aDesiredSize);
friend class nsHTMLFramesetFrame;
friend class nsHTMLFrameset;
};
/*******************************************************************************
* nsHTMLFramesetFrame
******************************************************************************/
PRInt32 nsHTMLFramesetFrame::gMaxNumRowColSpecs = 25;
PRBool nsHTMLFramesetFrame::gDragInProgress = PR_FALSE;
nsHTMLFramesetFrame::nsHTMLFramesetFrame(nsIContent* aContent, nsIFrame* aParent)
: nsHTMLContainerFrame(aContent, aParent)
{
mNumRows = 0;
mRowSpecs = nsnull;
mRowSizes = nsnull;
mNumCols = 0;
mColSpecs = nsnull;
mColSizes = nsnull;
mEdgeVisibility = 0;
mEdgeColors.Set(NO_COLOR);
mParentFrameborder = eFrameborder_Yes; // default
mParentBorderWidth = -1; // default not set
mParentBorderColor = NO_COLOR; // default not set
mLastDragPoint.x = mLastDragPoint.y = 0;
mMinDrag = 0;
}
nsHTMLFramesetFrame::~nsHTMLFramesetFrame()
{
printf("nsFramesetFrame destructor %X \n", this);
if (mRowSizes) delete [] mRowSizes;
if (mRowSpecs) delete [] mRowSpecs;
if (mColSizes) delete [] mColSizes;
if (mColSpecs) delete [] mColSpecs;
mRowSizes = mColSizes = nsnull;
mRowSpecs = mColSpecs = nsnull;
}
nsresult nsHTMLFramesetFrame::QueryInterface(const nsIID& aIID, void** aInstancePtr)
{
if (NULL == aInstancePtr) {
return NS_ERROR_NULL_POINTER;
} else if (aIID.Equals(kIFramesetFrameIID)) {
*aInstancePtr = (void*)this;
return NS_OK;
}
return nsHTMLContainerFrame::QueryInterface(aIID, aInstancePtr);
}
/**
* Translate the rows/cols specs into an array of integer sizes for
* each cell in the frameset. The sizes are computed by first
* rationalizing the spec into a set of percentages that total
* 100. Then the cell sizes are computed.
*/
// XXX This doesn't do a good job of translating "*,625,*" specs
void nsHTMLFramesetFrame::CalculateRowCol(nsIPresContext* aPresContext, nscoord aSize,
PRInt32 aNumSpecs, nsFramesetSpec* aSpecs,
nscoord* aValues)
{
// Total up the three different type of grid cell
// percentages. Transfer the resulting values into result for
// temporary storage (we don't overwrite the cell specs)
PRInt32 free = 0;
PRInt32 percent = 0;
PRInt32 pixel = 0;
float p2t = aPresContext->GetPixelsToTwips();
int i; // feeble compiler
for (i = 0; i < aNumSpecs; i++) {
switch (aSpecs[i].mUnit) {
case eFramesetUnit_Pixel:
// Now that we know the size we are laying out in, turn fixed
// pixel dimensions into percents.
// XXX maybe use UnitConverter for proper rounding? MMP
aValues[i] = NSToCoordRound(100 * p2t * aSpecs[i].mValue / aSize);
if (aValues[i] < 1) aValues[i] = 1;
pixel += aValues[i];
break;
case eFramesetUnit_Percent:
aValues[i] = aSpecs[i].mValue;
percent += aValues[i];
break;
case eFramesetUnit_Free:
aValues[i] = aSpecs[i].mValue;
free += aValues[i];
break;
}
}
if (percent + pixel < 100) {
// The user didn't explicitly use up all the space. Spread the
// left over space to the free percentage cells first, then to
// the normal percentage cells second, and finally to the fixed
// cells as a last resort.
if (free != 0) {
// We have some free percentage cells that want to soak up the
// excess space. Spread out the left over space to those cells.
int used = 0;
int last = -1;
int leftOver = 100 - (percent + pixel);
for (int i = 0; i < aNumSpecs; i++) {
if (eFramesetUnit_Free == aSpecs[i].mUnit) {
aValues[i] = aValues[i] * leftOver / free;
if (aValues[i] < 1) aValues[i] = 1;
used += aValues[i];
last = i;
}
}
int remainder = 100 - percent - pixel - used;
if ((remainder > 0) && (last >= 0)) {
// Slop the extra space into the last qualifying cell
aValues[last] += remainder;
}
} else if (percent != 0) {
// We have no free cells but have some normal percentage
// cells. Distribute the extra space among them.
int used = 0;
int last = -1;
int leftOver = 100 - pixel;
for (int i = 0; i < aNumSpecs; i++) {
if (eFramesetUnit_Percent == aSpecs[i].mUnit) {
aValues[i] = aValues[i] * leftOver / percent;
used += aValues[i];
last = i;
}
}
if ((used < leftOver) && (last >= 0)) {
// Slop the extra space into the last qualifying cell
aValues[last] = aValues[last] + (leftOver - used);
}
} else {
// Give the leftover space to the fixed percentage
// cells. Recall that at the start of this method we converted
// the fixed pixel values into percentages.
int used = 0;
for (int i = 0; i < aNumSpecs; i++) {
aValues[i] = aValues[i] * 100 / pixel;
used += aValues[i];
}
if ((used < 100) && (aNumSpecs > 0)) {
// Slop the extra space into the last cell
aValues[aNumSpecs - 1] += (100 - used);
}
}
} else if (percent + pixel > 100) {
// The user overallocated the space. We need to shrink something.
// If there is not too much fixed percentage added, we can
// just shrink the normal percentage cells to make things fit.
if (pixel <= 100) {
int used = 0;
int last = -1;
int val = 100 - pixel;
for (int i = 0; i < aNumSpecs; i++) {
if (eFramesetUnit_Percent == aSpecs[i].mUnit) {
aValues[i] = aValues[i] * val / percent;
used += aValues[i];
last = i;
}
}
// Since integer division always truncates, we either made
// it fit exactly, or overcompensated and made it too small.
if ((used < val) && (last >= 0)) {
aValues[last] += (val - used);
}
} else {
// There is too much fixed percentage as well. We will just
// shrink all the cells.
int used = 0;
for (int i = 0; i < aNumSpecs; i++) {
if (eFramesetUnit_Free == aSpecs[i].mUnit) {
aValues[i] = 0;
} else {
aValues[i] = aValues[i] * 100 / (percent + pixel);
}
used += aValues[i];
}
if ((used < 100) && (aNumSpecs > 0)) {
aValues[aNumSpecs-1] += (100 - used);
}
}
}
// Now map the result which contains nothing but percentages into
// fixed pixel values.
int sum = 0;
for (i = 0; i < aNumSpecs; i++) {
aValues[i] = (aValues[i] * aSize) / 100;
sum += aValues[i];
}
//Assert.Assertion(sum <= aSize);
if ((sum < aSize) && (aNumSpecs > 0)) {
// Any remaining pixels (from roundoff) go into the last cell
aValues[aNumSpecs-1] += aSize - sum;
}
}
PRInt32 nsHTMLFramesetFrame::GetBorderWidth(nsIPresContext* aPresContext)
{
float p2t = aPresContext->GetPixelsToTwips();
nsHTMLValue htmlVal;
PRInt32 intVal;
nsIHTMLContent* content = nsnull;
mContent->QueryInterface(kIHTMLContentIID, (void**)&content);
if (nsnull != content) {
if (NS_CONTENT_ATTR_HAS_VALUE == (content->GetAttribute(nsHTMLAtoms::border, htmlVal))) {
if (eHTMLUnit_Pixel == htmlVal.GetUnit()) {
intVal = htmlVal.GetPixelValue();
} else {
intVal = htmlVal.GetIntValue();
}
if (intVal < 0) {
intVal = 0;
}
NS_RELEASE(content);
return NSIntPixelsToTwips(intVal, p2t);
}
NS_RELEASE(content);
}
if (mParentBorderWidth >= 0) {
return mParentBorderWidth;
}
return NSIntPixelsToTwips(6, p2t);
}
PRIntn
nsHTMLFramesetFrame::GetSkipSides() const
{
return 0;
}
void
nsHTMLFramesetFrame::GetDesiredSize(nsIPresContext* aPresContext,
const nsHTMLReflowState& aReflowState,
nsHTMLReflowMetrics& aDesiredSize)
{
nsHTMLFramesetFrame* framesetParent = GetFramesetParent(this);
if (nsnull == framesetParent) {
nsRect area;
aPresContext->GetVisibleArea(area);
aDesiredSize.width = area.width;
aDesiredSize.height= area.height;
} else {
nsSize size;
framesetParent->GetSizeOfChild(this, size);
aDesiredSize.width = size.width;
aDesiredSize.height = size.height;
}
aDesiredSize.ascent = aDesiredSize.height;
aDesiredSize.descent = 0;
}
nsHTMLFramesetFrame* nsHTMLFramesetFrame::GetFramesetParent(nsIFrame* aChild)
{
nsHTMLFramesetFrame* parent = nsnull;
nsIContent* content = nsnull;
aChild->GetContent(content);
if (nsnull != content) {
nsIContent* contentParent = nsnull;
content->GetParent(contentParent);
if (nsnull != contentParent) {
nsIHTMLContent* contentParent2 = nsnull;
contentParent->QueryInterface(kIHTMLContentIID, (void**)&contentParent2);
if (nsnull != contentParent2) {
nsIAtom* tag;
contentParent2->GetTag(tag);
if (nsHTMLAtoms::frameset == tag) {
aChild->GetGeometricParent((nsIFrame*&)parent);
}
NS_IF_RELEASE(tag);
NS_RELEASE(contentParent2);
}
NS_RELEASE(contentParent);
}
NS_RELEASE(content);
}
return parent;
}
// only valid for non border children
void nsHTMLFramesetFrame::GetSizeOfChildAt(PRInt32 aIndexInParent, nsSize& aSize, nsPoint& aCellIndex)
{
PRInt32 row = aIndexInParent / mNumCols;
PRInt32 col = aIndexInParent - (row * mNumCols); // remainder from dividing index by mNumCols
if ((row < mNumRows) && (col < mNumCols)) {
aSize.width = mColSizes[col];
aSize.height = mRowSizes[row];
aCellIndex.x = col;
aCellIndex.y = row;
} else {
aSize.width = aSize.height = aCellIndex.x = aCellIndex.y = 0;
}
}
// only valid for non border children
void nsHTMLFramesetFrame::GetSizeOfChild(nsIFrame* aChild,
nsSize& aSize)
{
// Reflow only creates children frames for <frameset> and <frame> content.
// this assumption is used here
int i = 0;
for (nsIFrame* child = mFirstChild; child; child->GetNextSibling(child)) {
if (aChild == child) {
nsPoint ignore;
GetSizeOfChildAt(i, aSize, ignore);
return;
}
i++;
}
aSize.width = 0;
aSize.height = 0;
}
NS_METHOD nsHTMLFramesetFrame::HandleEvent(nsIPresContext& aPresContext,
nsGUIEvent* aEvent,
nsEventStatus& aEventStatus)
{
nsIView* view;
GetView(view);
if (view) {
nsIViewManager* viewMan;
view->GetViewManager(viewMan);
if (viewMan) {
nsIView* grabber;
viewMan->GetMouseEventGrabber(grabber);
if (grabber == view) {
// the nsFramesetBorderFrame has captured NS_MOUSE_DOWN and changed the cursor to a resize
switch (aEvent->message) {
case NS_MOUSE_MOVE:
MouseDrag(aPresContext, aEvent);
break;
case NS_MOUSE_LEFT_BUTTON_UP:
nsIWidget* window;
GetWindow(window);
if (window) {
window->SetCursor(eCursor_standard);
NS_RELEASE(window);
}
EndMouseDrag();
break;
}
aEventStatus = nsEventStatus_eConsumeNoDefault;
NS_RELEASE(viewMan);
return NS_OK;
}
NS_RELEASE(viewMan);
}
}
// to avoid processing events after destruction of this or children, call super as follows
// switch (aEvent->message) {
// case NS_MOUSE_MOVE:
// case NS_MOUSE_ENTER:
// case NS_MOUSE_EXIT:
// case NS_MOUSE_LEFT_BUTTON_UP:
// case NS_MOUSE_LEFT_BUTTON_DOWN:
// aEventStatus = nsEventStatus_eIgnore;
if (nsnull == mFirstChild) { // XXX see corresponding hack in nsHTMLContainerFrame::DeleteFrame
aEventStatus = nsEventStatus_eConsumeNoDefault;
return NS_OK;
} else {
return nsHTMLContainerFrame::HandleEvent(aPresContext, aEvent, aEventStatus);
}
}
NS_IMETHODIMP
nsHTMLFramesetFrame::Paint(nsIPresContext& aPresContext,
nsIRenderingContext& aRenderingContext,
const nsRect& aDirtyRect)
{
//printf("frameset paint %X (%d,%d,%d,%d) \n", this, aDirtyRect.x, aDirtyRect.y, aDirtyRect.width, aDirtyRect.height);
return nsHTMLContainerFrame::Paint(aPresContext, aRenderingContext, aDirtyRect);
}
void nsHTMLFramesetFrame::ParseRowCol(nsIAtom* aAttrType, PRInt32& aNumSpecs, nsFramesetSpec** aSpecs)
{
nsHTMLValue value;
nsAutoString rowsCols;
nsIHTMLContent* content = nsnull;
nsresult result = mContent->QueryInterface(kIHTMLContentIID, (void**)&content);
if (nsnull != content) {
if (NS_CONTENT_ATTR_HAS_VALUE == content->GetAttribute(aAttrType, value)) {
if (eHTMLUnit_String == value.GetUnit()) {
value.GetStringValue(rowsCols);
nsFramesetSpec* specs = new nsFramesetSpec[gMaxNumRowColSpecs];
aNumSpecs = ParseRowColSpec(rowsCols, gMaxNumRowColSpecs, specs);
*aSpecs = new nsFramesetSpec[aNumSpecs];
for (int i = 0; i < aNumSpecs; i++) {
(*aSpecs)[i] = specs[i];
}
delete [] specs;
NS_RELEASE(content);
return;
}
}
NS_RELEASE(content);
}
aNumSpecs = 1;
*aSpecs = new nsFramesetSpec[1];
aSpecs[0]->mUnit = eFramesetUnit_Free;
aSpecs[0]->mValue = 1;
}
/**
* Translate a "rows" or "cols" spec into an array of nsFramesetSpecs
*/
PRInt32
nsHTMLFramesetFrame::ParseRowColSpec(nsString& aSpec, PRInt32 aMaxNumValues,
nsFramesetSpec* aSpecs)
{
static const PRUnichar ASTER('*');
static const PRUnichar PERCENT('%');
static const PRUnichar COMMA(',');
// Count the commas
PRInt32 commaX = aSpec.Find(COMMA);
PRInt32 count = 1;
while (commaX >= 0) {
count++;
commaX = aSpec.Find(COMMA, commaX + 1);
}
if (count > aMaxNumValues) {
NS_ASSERTION(0, "Not enough space for values");
count = aMaxNumValues;
}
// Parse each comma separated token
PRInt32 start = 0;
PRInt32 specLen = aSpec.Length();
for (PRInt32 i = 0; i < count; i++) {
// Find our comma
commaX = aSpec.Find(COMMA, start);
PRInt32 end = (commaX < 0) ? specLen : commaX;
// Note: If end == start then it means that the token has no
// data in it other than a terminating comma (or the end of the spec)
aSpecs[i].mUnit = eFramesetUnit_Pixel;
if (end > start) {
PRInt32 numberEnd = end - 1;
PRUnichar ch = aSpec.CharAt(numberEnd);
if (ASTER == ch) {
aSpecs[i].mUnit = eFramesetUnit_Free;
numberEnd--;
} else if (PERCENT == ch) {
aSpecs[i].mUnit = eFramesetUnit_Percent;
numberEnd--;
}
// Translate value to an integer
nsString token("");
aSpec.Mid(token, start, 1 + numberEnd - start);
//aValues[i] = nsCRT::atoi(token); XXX this is broken, consequently the next 3 lines?
char* tokenIso = token.ToNewCString();
aSpecs[i].mValue = atoi(tokenIso);
delete [] tokenIso;
if (eFramesetUnit_Percent == aSpecs[i].mUnit) {
if (aSpecs[i].mValue <= 0) {
aSpecs[i].mValue = 100 / count;
}
}
if (aSpecs[i].mValue < 1) aSpecs[i].mValue = 1;
start = end + 1;
}
}
return count;
}
void
nsHTMLFramesetFrame::ReflowPlaceChild(nsIFrame* aChild,
nsIPresContext& aPresContext,
const nsHTMLReflowState& aReflowState,
nsPoint& aOffset,
nsSize& aSize,
nsFramesetDrag* aDrag,
nsPoint* aCellIndex)
{
PRBool needFramesetReflow = PR_FALSE;
nsFramesetDrag* childDrag = nsnull;
if (aDrag && aCellIndex && ChildIsFrameset(aChild)) {
nsIContent* childContent;
aChild->GetContent(childContent);
if (childContent) {
nsIAtom* tag;
childContent->GetTag(tag);
if (nsHTMLAtoms::frameset == tag) {
nsHTMLFramesetFrame* childFS = (nsHTMLFramesetFrame*)aChild;
if (!aDrag->mConsumed) {
PRBool vertical = PR_TRUE;
PRInt32 side = RIGHT_EDGE;
if (aDrag->mVertical) {
if (aDrag->mIndex == aCellIndex->x) {
childFS->mColSizes[childFS->mNumCols-1] += aDrag->mChange;
} else if (aDrag->mIndex == RIGHT_EDGE) {
//aSize.width += aDrag->mChange;
childFS->mColSizes[childFS->mNumCols-1] += aDrag->mChange;
} else if (aDrag->mIndex+1 == aCellIndex->x) {
side = LEFT_EDGE;
childFS->mColSizes[0] -= aDrag->mChange;
} else if (aDrag->mIndex == LEFT_EDGE) {
side = LEFT_EDGE;
//aSize.width -= aDrag->mChange;
childFS->mColSizes[0] -= aDrag->mChange;
//aOffset.x += aDrag->mChange;
}
} else {
vertical = PR_FALSE;
if (aDrag->mIndex == aCellIndex->y) {
childFS->mRowSizes[childFS->mNumRows-1] += aDrag->mChange;
} else if (aDrag->mIndex == RIGHT_EDGE) {
//aSize.height += aDrag->mChange;
childFS->mRowSizes[childFS->mNumRows-1] += aDrag->mChange;
} else if (aDrag->mIndex+1 == aCellIndex->y) {
side = LEFT_EDGE;
childFS->mRowSizes[0] -= aDrag->mChange;
} else if (aDrag->mIndex == LEFT_EDGE) {
side = LEFT_EDGE;
//aSize.height -= aDrag->mChange;
childFS->mRowSizes[0] -= aDrag->mChange;
//aOffset.y += aDrag->mChange;
}
}
childDrag = new nsFramesetDrag(vertical, side, aDrag->mChange, aDrag->mSource);
} else {
childDrag = new nsFramesetDrag(); // consumed drag
}
needFramesetReflow = PR_TRUE;
}
NS_IF_RELEASE(tag);
NS_RELEASE(childContent);
}
}
nsHTMLReflowState reflowState(aPresContext, aChild, aReflowState, aSize);
nsIHTMLReflow* htmlReflow;
if (NS_OK == aChild->QueryInterface(kIHTMLReflowIID, (void**)&htmlReflow)) {
nsHTMLReflowMetrics metrics(nsnull);
metrics.width = aSize.width;
metrics.height= aSize.height;
nsReflowStatus status;
if (needFramesetReflow) {
htmlReflow->WillReflow(aPresContext);
status = ((nsHTMLFramesetFrame*)aChild)->Reflow(aPresContext, childDrag, metrics,
reflowState, status);
} else {
ReflowChild(aChild, aPresContext, metrics, reflowState, status);
}
NS_ASSERTION(NS_FRAME_IS_COMPLETE(status), "bad status");
if (childDrag) {
delete childDrag;
}
// Place and size the child
nsRect rect(aOffset.x, aOffset.y, aSize.width, aSize.height);
// XXX We shouldn't just whack the frame set bits. Clear just the bits
// we need to clear...
#if 0
aChild->SetFrameState(NS_FRAME_SYNC_FRAME_AND_VIEW);
#endif
aChild->SetRect(rect);
htmlReflow->DidReflow(aPresContext, NS_FRAME_REFLOW_FINISHED); // XXX do we need this
}
}
nsFrameborder GetFrameBorderHelper(nsIHTMLContent* aContent, PRBool aStandardMode)
{
if (nsnull != aContent) {
nsHTMLValue value;
if (NS_CONTENT_ATTR_HAS_VALUE == (aContent->GetAttribute(nsHTMLAtoms::frameborder, value))) {
if (eHTMLUnit_Enumerated == value.GetUnit()) {
PRInt32 intValue;
intValue = value.GetIntValue();
if (!aStandardMode) {
if (NS_STYLE_FRAME_YES == intValue) {
intValue = NS_STYLE_FRAME_1;
}
else if (NS_STYLE_FRAME_NO == intValue) {
intValue = NS_STYLE_FRAME_0;
}
}
if (NS_STYLE_FRAME_0 == intValue) {
return eFrameborder_No;
}
else if (NS_STYLE_FRAME_1 == intValue) {
return eFrameborder_Yes;
}
}
}
}
return eFrameborder_Notset;
}
nsFrameborder nsHTMLFramesetFrame::GetFrameBorder(PRBool aStandardMode)
{
nsFrameborder result = eFrameborder_Notset;
nsIHTMLContent* content = nsnull;
mContent->QueryInterface(kIHTMLContentIID, (void**) &content);
if (nsnull != content) {
result = GetFrameBorderHelper(content, aStandardMode);
NS_RELEASE(content);
}
// XXX if we get here, check for nsIDOMFRAMEElement interface
if (eFrameborder_Notset == result) {
return mParentFrameborder;
}
return result;
}
nsFrameborder nsHTMLFramesetFrame::GetFrameBorder(nsIContent* aContent, PRBool aStandardMode)
{
nsFrameborder result = eFrameborder_Notset;
nsIHTMLContent* content = nsnull;
aContent->QueryInterface(kIHTMLContentIID, (void**) &content);
if (nsnull != content) {
result = GetFrameBorderHelper(content, aStandardMode);
NS_RELEASE(content);
}
// XXX if we get here, check for nsIDOMFRAMEElement interface
if (eFrameborder_Notset == result) {
return GetFrameBorder(aStandardMode);
}
return result;
}
nscolor nsHTMLFramesetFrame::GetBorderColor()
{
nscolor result = NO_COLOR;
nsIHTMLContent* content = nsnull;
mContent->QueryInterface(kIHTMLContentIID, (void**)&content);
if (nsnull != content) {
nsHTMLValue value;
if (NS_CONTENT_ATTR_HAS_VALUE == (content->GetAttribute(nsHTMLAtoms::bordercolor, value))) {
if (value.GetUnit() == eHTMLUnit_Color) {
result = value.GetColorValue();
} else if (value.GetUnit() == eHTMLUnit_String) {
nsAutoString buffer;
value.GetStringValue(buffer);
char cbuf[40];
buffer.ToCString(cbuf, sizeof(cbuf));
NS_ColorNameToRGB(cbuf, &result);
}
}
NS_RELEASE(content);
}
if (NO_COLOR == result) {
return mParentBorderColor;
}
return result;
}
nscolor nsHTMLFramesetFrame::GetBorderColor(nsIContent* aContent)
{
nscolor result = NO_COLOR;
nsIHTMLContent* content = nsnull;
aContent->QueryInterface(kIHTMLContentIID, (void**)&content);
if (nsnull != content) {
nsHTMLValue value;
if (NS_CONTENT_ATTR_HAS_VALUE == (content->GetAttribute(nsHTMLAtoms::bordercolor, value))) {
if (value.GetUnit() == eHTMLUnit_Color) {
result = value.GetColorValue();
} else if (value.GetUnit() == eHTMLUnit_String) {
nsAutoString buffer;
value.GetStringValue(buffer);
char cbuf[40];
buffer.ToCString(cbuf, sizeof(cbuf));
NS_ColorNameToRGB(cbuf, &result);
}
}
NS_RELEASE(content);
}
if (NO_COLOR == result) {
return GetBorderColor();
}
return result;
}
#define FRAMESET 0
#define FRAME 1
#define BLANK 2
NS_IMETHODIMP
nsHTMLFramesetFrame::Reflow(nsIPresContext& aPresContext,
nsHTMLReflowMetrics& aDesiredSize,
const nsHTMLReflowState& aReflowState,
nsReflowStatus& aStatus)
{
//printf("FramesetFrame::Reflow %X (%d,%d) \n", this, aReflowState.maxSize.width, aReflowState.maxSize.height);
return Reflow(aPresContext, nsnull, aDesiredSize, aReflowState, aStatus);
}
static NS_DEFINE_IID(kViewCID, NS_VIEW_CID);
static NS_DEFINE_IID(kIViewIID, NS_IVIEW_IID);
NS_IMETHODIMP
nsHTMLFramesetFrame::Reflow(nsIPresContext& aPresContext,
nsFramesetDrag* aDrag,
nsHTMLReflowMetrics& aDesiredSize,
const nsHTMLReflowState& aReflowState,
nsReflowStatus& aStatus)
{
//printf("FramesetFrame2::Reflow %X (%d,%d) \n", this, aReflowState.maxSize.width, aReflowState.maxSize.height);
// Always get the size so that the caller knows how big we are
GetDesiredSize(&aPresContext, aReflowState, aDesiredSize);
PRBool firstTime = (0 == mNumRows);
if (firstTime) {
// create the view. a view is needed since it needs to be a mouse grabber
// make sure the style context is set
if (nsnull == mStyleContext) {
GetStyleContext(&aPresContext, mStyleContext);
}
nsIView* view;
nsresult result = nsRepository::CreateInstance(kViewCID, nsnull, kIViewIID,
(void **)&view);
nsIPresShell *presShell = aPresContext.GetShell();
nsIViewManager *viewMan = presShell->GetViewManager();
NS_RELEASE(presShell);
nsIFrame* parWithView;
nsIView *parView;
GetParentWithView(parWithView);
parWithView->GetView(parView);
nsRect boundBox(0, 0, aDesiredSize.width, aDesiredSize.height);
result = view->Init(viewMan, boundBox, parView, nsnull);
viewMan->InsertChild(parView, view, 0);
SetView(view);
NS_RELEASE(viewMan);
// parse the rows= cols= data
ParseRowCol(nsHTMLAtoms::rows, mNumRows, &mRowSpecs);
ParseRowCol(nsHTMLAtoms::cols, mNumCols, &mColSpecs);
mRowSizes = new nscoord[mNumRows];
mColSizes = new nscoord[mNumCols];
}
PRInt32 numCells = mNumRows*mNumCols;
nscoord width = (aDesiredSize.width <= aReflowState.maxSize.width)
? aDesiredSize.width : aReflowState.maxSize.width;
nscoord height = (aDesiredSize.height <= aReflowState.maxSize.height)
? aDesiredSize.height : aReflowState.maxSize.height;
// subtract out the width of all of the potential borders. There are
// only borders between <frame>s. There are none on the edges (e.g the
// leftmost <frame> has no left border).
PRInt32 borderWidth = GetBorderWidth(&aPresContext);
width -= (mNumCols - 1) * borderWidth;
height -= (mNumRows - 1) * borderWidth;
if (!aDrag && ( (firstTime) ||
( (mRect.width != 0) && (mRect.height != 0) &&
(aDesiredSize.width != 0) && (aDesiredSize.height != 0) &&
((aDesiredSize.width != mRect.width) || (aDesiredSize.height != mRect.height))) ) ) {
CalculateRowCol(&aPresContext, width, mNumCols, mColSpecs, mColSizes);
CalculateRowCol(&aPresContext, height, mNumRows, mRowSpecs, mRowSizes);
}
PRBool* verBordersVis; // vertical borders visibility
nsHTMLFramesetBorderFrame** verBorders; // vertical borders
nscolor* verBorderColors;
PRBool* horBordersVis; // horizontal borders visibility
nsHTMLFramesetBorderFrame** horBorders; // horizontal borders
nscolor* horBorderColors;
PRInt32* childTypes; // frameset/frame distinction of children
nsFrameborder* childFrameborder; // the frameborder attr of children
nsFrameborder frameborder;
nsBorderColor* childBorderColors;
nscolor borderColor;
if (firstTime) {
verBorders = new nsHTMLFramesetBorderFrame*[mNumCols]; // 1 more than number of ver borders
verBordersVis = new PRBool[mNumCols];
verBorderColors = new nscolor[mNumCols];
for (int verX = 0; verX < mNumCols; verX++) {
verBorders[verX] = nsnull;
verBordersVis[verX] = PR_FALSE;
verBorderColors[verX] = NO_COLOR;
}
horBorders = new nsHTMLFramesetBorderFrame*[mNumRows]; // 1 more than number of hor borders
horBordersVis = new PRBool[mNumRows];
horBorderColors = new nscolor[mNumRows];
for (int horX = 0; horX < mNumRows; horX++) {
horBorders[horX] = nsnull;
horBordersVis[horX] = PR_FALSE;
horBorderColors[horX] = NO_COLOR;
}
childTypes = new PRInt32[numCells];
childFrameborder = new nsFrameborder[numCells];
frameborder = GetFrameBorder(PR_FALSE);
childBorderColors = new nsBorderColor[numCells];
borderColor = GetBorderColor();
}
// create the children frames; skip content which isn't <frameset> or <frame>
nsIFrame* lastChild = nsnull;
if (firstTime) {
mChildCount = 0;
if (nsnull != mContent) {
nsIFrame* frame;
PRInt32 numChildren;
mContent->ChildCount(numChildren);
for (int childX = 0; childX < numChildren; childX++) {
nsIContent* childCon;
mContent->ChildAt(childX, childCon);
nsIHTMLContent* child = nsnull;
nsresult result = childCon->QueryInterface(kIHTMLContentIID, (void**)&child);
if (nsnull == child) {
continue;
}
nsIAtom* tag;
child->GetTag(tag);
if ((nsHTMLAtoms::frameset == tag) || (nsHTMLAtoms::frame == tag)) {
nsIStyleContext* kidSC = aPresContext.ResolveStyleContextFor(child, this);
nsresult result;
if (nsHTMLAtoms::frameset == tag) {
result = NS_NewHTMLFramesetFrame(child, this, frame);
childTypes[mChildCount] = FRAMESET;
nsHTMLFramesetFrame* childFrame = (nsHTMLFramesetFrame*)frame;
childFrame->SetParentFrameborder(frameborder);
childFrame->SetParentBorderWidth(borderWidth);
childFrame->SetParentBorderColor(borderColor);
childBorderColors[mChildCount].Set(childFrame->GetBorderColor());
} else { // frame
result = NS_NewHTMLFrameOuterFrame(child, this, frame);
childTypes[mChildCount] = FRAME;
//
childFrameborder[mChildCount] = GetFrameBorder(child, PR_FALSE);
childBorderColors[mChildCount].Set(GetBorderColor(child));
}
if (NS_OK != result) {
NS_RELEASE(tag);
NS_RELEASE(child);
NS_RELEASE(kidSC);
return result;
}
// Set the style context
frame->SetStyleContext(&aPresContext, kidSC);
NS_RELEASE(kidSC);
if (nsnull == lastChild) {
mFirstChild = frame;
} else {
lastChild->SetNextSibling(frame);
}
lastChild = frame;
mChildCount++;
}
NS_RELEASE(child);
NS_IF_RELEASE(tag);
}
mNonBlankChildCount = mChildCount;
// add blank frames for frameset cells that had no content provided
for (int blankX = mChildCount; blankX < numCells; blankX++) {
// XXX the blank frame is using the content of its parent - at some point it should just have null content
nsHTMLFramesetBlankFrame* blankFrame = new nsHTMLFramesetBlankFrame(mContent, this);
nsIStyleContext* pseudoStyleContext =
aPresContext.ResolvePseudoStyleContextFor(nsHTMLAtoms::framesetBlankPseudo, this);
blankFrame->SetStyleContext(&aPresContext, pseudoStyleContext);
NS_RELEASE(pseudoStyleContext);
if (nsnull == lastChild) {
mFirstChild = blankFrame;
} else {
lastChild->SetNextSibling(blankFrame);
}
lastChild = blankFrame;
childTypes[mChildCount] = BLANK;
childBorderColors[mChildCount].Set(NO_COLOR);
mChildCount++;
}
mNonBorderChildCount = mChildCount;
}
}
// reflow the children
PRInt32 lastRow = 0;
PRInt32 lastCol = 0;
PRInt32 borderChildX = mNonBorderChildCount; // index of border children
nsHTMLFramesetBorderFrame* borderFrame = nsnull;
nsPoint offset(0,0);
nsSize size, lastSize;
nsIFrame* child = mFirstChild;
for (PRInt32 childX = 0; childX < mNonBorderChildCount; childX++) {
nsPoint cellIndex;
GetSizeOfChildAt(childX, size, cellIndex);
if (lastRow != cellIndex.y) { // changed to next row
offset.x = 0;
offset.y += lastSize.height;
if (borderWidth > 0) {
if (firstTime) { // create horizontal border
borderFrame = new nsHTMLFramesetBorderFrame(mContent, this, borderWidth, PR_FALSE, PR_FALSE);
nsIStyleContext* pseudoStyleContext =
aPresContext.ResolvePseudoStyleContextFor(nsHTMLAtoms::horizontalFramesetBorderPseudo, this);
borderFrame->SetStyleContext(&aPresContext, pseudoStyleContext);
NS_RELEASE(pseudoStyleContext);
mChildCount++;
lastChild->SetNextSibling(borderFrame);
lastChild = borderFrame;
horBorders[cellIndex.y-1] = borderFrame;
// set the neighbors for determining drag boundaries
borderFrame->mPrevNeighbor = lastRow;
borderFrame->mNextNeighbor = cellIndex.y;
} else {
borderFrame = (nsHTMLFramesetBorderFrame*)FrameAt(mFirstChild, borderChildX);
borderChildX++;
}
nsSize borderSize(aDesiredSize.width, borderWidth);
ReflowPlaceChild(borderFrame, aPresContext, aReflowState, offset, borderSize);
offset.y += borderWidth;
}
} else {
if ((cellIndex.x > 0) && (borderWidth > 0)) { // moved to next col in same row
if (0 == cellIndex.y) { // in 1st row
if (firstTime) { // create vertical border
borderFrame = new nsHTMLFramesetBorderFrame(mContent, this, borderWidth, PR_TRUE, PR_FALSE);
nsIStyleContext* pseudoStyleContext =
aPresContext.ResolvePseudoStyleContextFor(nsHTMLAtoms::verticalFramesetBorderPseudo, this);
borderFrame->SetStyleContext(&aPresContext, pseudoStyleContext);
NS_RELEASE(pseudoStyleContext);
mChildCount++;
lastChild->SetNextSibling(borderFrame);
lastChild = borderFrame;
verBorders[cellIndex.x-1] = borderFrame;
// set the neighbors for determining drag boundaries
borderFrame->mPrevNeighbor = lastCol;
borderFrame->mNextNeighbor = cellIndex.x;
} else {
borderFrame = (nsHTMLFramesetBorderFrame*)FrameAt(mFirstChild, borderChildX);
borderChildX++;
}
nsSize borderSize(borderWidth, aDesiredSize.height);
ReflowPlaceChild(borderFrame, aPresContext, aReflowState, offset, borderSize);
}
offset.x += borderWidth;
}
}
ReflowPlaceChild(child, aPresContext, aReflowState, offset, size, aDrag, &cellIndex);
if (firstTime) {
PRInt32 childVis;
if (FRAMESET == childTypes[childX]) {
nsHTMLFramesetFrame* childFS = (nsHTMLFramesetFrame*)child;
childVis = childFS->mEdgeVisibility;
childBorderColors[childX] = childFS->mEdgeColors;
} else if (FRAME == childTypes[childX]) {
if (eFrameborder_Yes == childFrameborder[childX]) {
childVis = ALL_VIS;
} else if (eFrameborder_No == childFrameborder[childX]) {
childVis = NONE_VIS;
} else { // notset
childVis = (eFrameborder_No == frameborder) ? NONE_VIS : ALL_VIS;
}
} else { // blank
childVis = NONE_VIS;
}
nsBorderColor childColors = childBorderColors[childX];
// set the visibility, color of our edge borders based on children
if (0 == cellIndex.x) {
if (!(mEdgeVisibility & LEFT_VIS)) {
mEdgeVisibility |= (LEFT_VIS & childVis);
}
if (NO_COLOR == mEdgeColors.mLeft) {
mEdgeColors.mLeft = childColors.mLeft;
}
}
if (0 == cellIndex.y) {
if (!(mEdgeVisibility & TOP_VIS)) {
mEdgeVisibility |= (TOP_VIS & childVis);
}
if (NO_COLOR == mEdgeColors.mTop) {
mEdgeColors.mTop = childColors.mTop;
}
}
if (mNumCols-1 == cellIndex.x) {
if (!(mEdgeVisibility & RIGHT_VIS)) {
mEdgeVisibility |= (RIGHT_VIS & childVis);
}
if (NO_COLOR == mEdgeColors.mRight) {
mEdgeColors.mRight = childColors.mRight;
}
}
if (mNumRows-1 == cellIndex.y) {
if (!(mEdgeVisibility & BOTTOM_VIS)) {
mEdgeVisibility |= (BOTTOM_VIS & childVis);
}
if (NO_COLOR == mEdgeColors.mBottom) {
mEdgeColors.mBottom = childColors.mBottom;
}
}
// set the visibility of borders that the child may affect
if (childVis & RIGHT_VIS) {
verBordersVis[cellIndex.x] = PR_TRUE;
}
if (childVis & BOTTOM_VIS) {
horBordersVis[cellIndex.y] = PR_TRUE;
}
if ((cellIndex.x > 0) && (childVis & LEFT_VIS)) {
verBordersVis[cellIndex.x-1] = PR_TRUE;
}
if ((cellIndex.y > 0) && (childVis & TOP_VIS)) {
horBordersVis[cellIndex.y-1] = PR_TRUE;
}
// set the colors of borders that the child may affect
if (NO_COLOR == verBorderColors[cellIndex.x]) {
verBorderColors[cellIndex.x] = childBorderColors[childX].mRight;
}
if (NO_COLOR == horBorderColors[cellIndex.y]) {
horBorderColors[cellIndex.y] = childBorderColors[childX].mBottom;
}
if ((cellIndex.x > 0) && (NO_COLOR == verBorderColors[cellIndex.x-1])) {
verBorderColors[cellIndex.x-1] = childBorderColors[childX].mLeft;
}
if ((cellIndex.y > 0) && (NO_COLOR == horBorderColors[cellIndex.y-1])) {
horBorderColors[cellIndex.y-1] = childBorderColors[childX].mTop;
}
}
lastRow = cellIndex.y;
lastCol = cellIndex.x;
lastSize = size;
offset.x += size.width;
child->GetNextSibling(child);
}
if (firstTime) {
nscolor childColor;
// set the visibility, color, mouse sensitivity of borders
for (int verX = 0; verX < mNumCols-1; verX++) {
if (verBorders[verX]) {
verBorders[verX]->SetVisibility(verBordersVis[verX]);
SetBorderResize(childTypes, verBorders[verX]);
childColor = (NO_COLOR == verBorderColors[verX]) ? borderColor : verBorderColors[verX];
verBorders[verX]->SetColor(childColor);
}
}
for (int horX = 0; horX < mNumRows-1; horX++) {
if (horBorders[horX]) {
horBorders[horX]->SetVisibility(horBordersVis[horX]);
SetBorderResize(childTypes, horBorders[horX]);
childColor = (NO_COLOR == horBorderColors[horX]) ? borderColor : horBorderColors[horX];
horBorders[horX]->SetColor(childColor);
}
}
delete[] verBordersVis;
delete[] verBorders;
delete[] verBorderColors;
delete[] horBordersVis;
delete[] horBorders;
delete[] horBorderColors;
delete[] childTypes;
delete[] childFrameborder;
delete[] childBorderColors;
}
if (nsnull != aDesiredSize.maxElementSize) {
aDesiredSize.maxElementSize->width = aDesiredSize.width;
aDesiredSize.maxElementSize->height = aDesiredSize.height;
}
aStatus = NS_FRAME_COMPLETE;
return NS_OK;
}
PRBool
nsHTMLFramesetFrame::ChildIsFrameset(nsIFrame* aChild)
{
nsIFrame* childFrame = nsnull;
nsresult result = aChild->QueryInterface(kIFramesetFrameIID, (void**)&childFrame);
if (childFrame) {
return PR_TRUE;
}
return PR_FALSE;
}
PRBool
nsHTMLFramesetFrame::CanResize(PRBool aVertical, PRBool aLeft)
{
nsIFrame* child;
PRInt32 childX;
PRInt32 startX;
if (aVertical) {
startX = (aLeft) ? 0 : mNumCols-1;
for (childX = startX; childX < mNonBorderChildCount; childX += mNumCols) {
child = FrameAt(mFirstChild, childX);
if (!CanChildResize(aVertical, aLeft, childX, ChildIsFrameset(child))) {
return PR_FALSE;
}
}
} else {
startX = (aLeft) ? 0 : (mNumRows - 1) * mNumCols;
PRInt32 endX = startX + mNumCols;
for (childX = startX; childX < endX; childX++) {
child = FrameAt(mFirstChild, childX);
if (!CanChildResize(aVertical, aLeft, childX, ChildIsFrameset(child))) {
return PR_FALSE;
}
}
}
return PR_TRUE;
}
PRBool
nsHTMLFramesetFrame::GetNoResize(nsIFrame* aChildFrame)
{
PRBool result = PR_FALSE;
nsIContent* content = nsnull;
aChildFrame->GetContent(content);
if (nsnull != content) {
nsIHTMLContent* htmlContent = nsnull;
content->QueryInterface(kIHTMLContentIID, (void**)&htmlContent);
if (nsnull != htmlContent) {
nsHTMLValue value;
if (NS_CONTENT_ATTR_HAS_VALUE == htmlContent->GetAttribute(nsHTMLAtoms::noresize, value)) {
result = PR_TRUE;
}
NS_RELEASE(htmlContent);
}
NS_RELEASE(content);
}
return result;
}
PRBool
nsHTMLFramesetFrame::CanChildResize(PRBool aVertical, PRBool aLeft, PRInt32 aChildX, PRBool aFrameset)
{
nsIFrame* child = FrameAt(mFirstChild, aChildX);
if (aFrameset) {
return ((nsHTMLFramesetFrame*)child)->CanResize(aVertical, aLeft);
} else {
return !GetNoResize(child);
}
}
void
nsHTMLFramesetFrame::SetBorderResize(PRInt32* aChildTypes, nsHTMLFramesetBorderFrame* aBorderFrame)
{
if (aBorderFrame->mVertical) {
for (int rowX = 0; rowX < mNumRows; rowX++) {
PRInt32 childX = aBorderFrame->mPrevNeighbor + (rowX * mNumCols);
if (!CanChildResize(PR_TRUE, PR_FALSE, childX, (FRAMESET == aChildTypes[childX])) ||
!CanChildResize(PR_TRUE, PR_TRUE, childX+1,(FRAMESET == aChildTypes[childX]))) {
aBorderFrame->mCanResize = PR_FALSE;
}
}
} else {
PRInt32 childX = aBorderFrame->mPrevNeighbor * mNumCols;
PRInt32 endX = childX + mNumCols;
for (; childX < endX; childX++) {
if (!CanChildResize(PR_FALSE, PR_FALSE, childX, (FRAMESET == aChildTypes[childX]))) {
aBorderFrame->mCanResize = PR_FALSE;
}
}
endX = endX + mNumCols;
for (; childX < endX; childX++) {
if (!CanChildResize(PR_FALSE, PR_TRUE, childX, (FRAMESET == aChildTypes[childX]))) {
aBorderFrame->mCanResize = PR_FALSE;
}
}
}
}
NS_IMETHODIMP
nsHTMLFramesetFrame::VerifyTree() const
{
// XXX Completely disabled for now; once pseud-frames are reworked
// then we can turn it back on.
return NS_OK;
}
void
nsHTMLFramesetFrame::StartMouseDrag(nsIPresContext& aPresContext, nsHTMLFramesetBorderFrame* aBorder,
nsGUIEvent* aEvent)
{
if (mMinDrag == 0) {
float p2t = aPresContext.GetPixelsToTwips();
mMinDrag = NSIntPixelsToTwips(2, p2t); // set min drag and min frame size to 2 pixels
}
#if 0
PRInt32 index;
IndexOf(aBorder, index);
NS_ASSERTION((nsnull != aBorder) && (index >= 0), "invalid dragger");
#endif
nsIView* view;
GetView(view);
if (view) {
nsIViewManager* viewMan;
view->GetViewManager(viewMan);
if (viewMan) {
PRBool ignore;
viewMan->GrabMouseEvents(view, ignore);
NS_RELEASE(viewMan);
mDragger = aBorder;
mLastDragPoint = NULL_POINT; // can't set it to this event's point - it is not in framesetframe coords
gDragInProgress = PR_TRUE;
}
}
}
void
nsHTMLFramesetFrame::MouseDrag(nsIPresContext& aPresContext, nsGUIEvent* aEvent)
{
if (NULL_POINT == mLastDragPoint) {
mLastDragPoint.x = aEvent->point.x;
mLastDragPoint.y = aEvent->point.y;
return;
}
PRInt32 change; // measured positive from left-to-right or top-to-bottom
if (mDragger->mVertical) {
change = aEvent->point.x - mLastDragPoint.x;
if (change < 0) {
if (mMinDrag >= -change) {
return;
}
PRInt32 index = mDragger->mPrevNeighbor;
if (mColSizes[index] + change < mMinDrag) {
change = mMinDrag - mColSizes[index];
}
} else if (change > 0) {
if (mMinDrag >= change) {
return;
}
PRInt32 index = mDragger->mNextNeighbor;
if (mColSizes[index] - change < mMinDrag) {
change = mColSizes[index] - mMinDrag;
}
}
mColSizes[mDragger->mPrevNeighbor] += change;
mColSizes[mDragger->mNextNeighbor] -= change;
} else {
change = aEvent->point.y - mLastDragPoint.y;
if (change < 0) {
if (mMinDrag >= -change) {
return;
}
PRInt32 index = mDragger->mPrevNeighbor;
if (mRowSizes[index] + change < mMinDrag) {
change = mMinDrag - mRowSizes[index];
}
} else if (change > 0) {
if (mMinDrag >= change) {
return;
}
PRInt32 index = mDragger->mNextNeighbor;
if (mRowSizes[index] - change < mMinDrag) {
change = mRowSizes[index] - mMinDrag;
}
}
mRowSizes[mDragger->mPrevNeighbor] += change;
mRowSizes[mDragger->mNextNeighbor] -= change;
}
if (change != 0) {
nsHTMLReflowMetrics metrics(nsnull);
nsSize size;
GetSize(size);
nsIPresShell *shell;
nsIRenderingContext *acx;
shell = aPresContext.GetShell();
shell->CreateRenderingContext(this, acx);
NS_RELEASE(shell);
nsHTMLReflowState state(aPresContext, this, eReflowReason_Initial,
size, acx);
state.reason = eReflowReason_Incremental;
nsReflowStatus status;
nsDidReflowStatus didStatus;
WillReflow(aPresContext);
nsFramesetDrag drag(mDragger->mVertical, mDragger->mPrevNeighbor, change, this);
Reflow(aPresContext, &drag, metrics, state, status);
// XXX Compiler warning that didStatus is being used without having been
// initialized...
DidReflow(aPresContext, didStatus);
NS_IF_RELEASE(acx);
}
mLastDragPoint.x = aEvent->point.x;
mLastDragPoint.y = aEvent->point.y;
}
void
nsHTMLFramesetFrame::EndMouseDrag()
{
nsIView* view;
GetView(view);
if (view) {
nsIViewManager* viewMan;
view->GetViewManager(viewMan);
if (viewMan) {
mDragger = nsnull;
PRBool ignore;
viewMan->GrabMouseEvents(nsnull, ignore);
NS_RELEASE(viewMan);
}
}
gDragInProgress = PR_FALSE;
}
nsresult
NS_NewHTMLFramesetFrame(nsIContent* aContent, nsIFrame* aParentFrame,
nsIFrame*& aResult)
{
nsIFrame* frame = new nsHTMLFramesetFrame(aContent, aParentFrame);
if (nsnull == frame) {
return NS_ERROR_OUT_OF_MEMORY;
}
aResult = frame;
return NS_OK;
}
/*******************************************************************************
* nsHTMLFramesetBorderFrame
******************************************************************************/
nsHTMLFramesetBorderFrame::nsHTMLFramesetBorderFrame(nsIContent* aContent, nsIFrame* aParent,
PRInt32 aWidth, PRBool aVertical, PRBool aVisibility)
: nsLeafFrame(aContent, aParent), mWidth(aWidth), mVertical(aVertical), mVisibility(aVisibility)
{
mCanResize = PR_TRUE;
mColor = NO_COLOR;
}
nsHTMLFramesetBorderFrame::~nsHTMLFramesetBorderFrame()
{
printf("nsHTMLFramesetBorderFrame destructor %X \n", this);
}
void nsHTMLFramesetBorderFrame::GetDesiredSize(nsIPresContext* aPresContext,
const nsHTMLReflowState& aReflowState,
nsHTMLReflowMetrics& aDesiredSize)
{
aDesiredSize.width = aReflowState.maxSize.width;
aDesiredSize.height = aReflowState.maxSize.height;
aDesiredSize.ascent = aDesiredSize.width;
aDesiredSize.descent = 0;
}
void nsHTMLFramesetBorderFrame::SetVisibility(PRBool aVisibility)
{
mVisibility = aVisibility;
}
void nsHTMLFramesetBorderFrame::SetColor(nscolor aColor)
{
mColor = aColor;
}
NS_IMETHODIMP
nsHTMLFramesetBorderFrame::Reflow(nsIPresContext& aPresContext,
nsHTMLReflowMetrics& aDesiredSize,
const nsHTMLReflowState& aReflowState,
nsReflowStatus& aStatus)
{
//printf("BorderFrame::Reflow %X (%d,%d) \n", this, aReflowState.maxSize.width, aReflowState.maxSize.height);
GetDesiredSize(&aPresContext, aReflowState, aDesiredSize);
aStatus = NS_FRAME_COMPLETE;
return NS_OK;
}
NS_METHOD
nsHTMLFramesetBorderFrame::Paint(nsIPresContext& aPresContext,
nsIRenderingContext& aRenderingContext,
const nsRect& aDirtyRect)
{
//printf("border frame paint %X (%d,%d,%d,%d) \n", this, aDirtyRect.x, aDirtyRect.y, aDirtyRect.width, aDirtyRect.height);
static nscolor GREY = NS_RGB(200, 200, 200);
static nscolor WHITE = NS_RGB(255, 255, 255);
static nscolor BLACK = NS_RGB(0, 0, 0);
static nscolor DARK_GREY = NS_RGB(130, 130, 130);
nscoord widthInPixels = NSTwipsToIntPixels(mWidth, aPresContext.GetTwipsToPixels());
nscoord pixelWidth = NSIntPixelsToTwips(1, aPresContext.GetPixelsToTwips());
if (widthInPixels <= 0) {
return NS_OK;
}
nscoord x0 = 0;
nscoord y0 = 0;
nscoord x1 = (mVertical) ? x0 : mRect.width;
nscoord y1 = (mVertical) ? mRect.height : x0;
nscolor color = WHITE;
if (mVisibility) {
color = (NO_COLOR == mColor) ? GREY : mColor;
}
aRenderingContext.SetColor(color);
// draw grey or white first
for (int i = 0; i < widthInPixels; i++) {
aRenderingContext.DrawLine (x0, y0, x1, y1);
if (mVertical) {
x0 += pixelWidth;
x1 = x0;
} else {
y0 += pixelWidth;
y1 = y0;
}
}
if (!mVisibility) {
return NS_OK;
}
if (widthInPixels >= 5) {
aRenderingContext.SetColor(WHITE);
x0 = (mVertical) ? pixelWidth : 0;
y0 = (mVertical) ? 0 : pixelWidth;
x1 = (mVertical) ? x0 : mRect.width;
y1 = (mVertical) ? mRect.height : y0;
aRenderingContext.DrawLine(x0, y0, x1, y1);
}
if (widthInPixels >= 2) {
aRenderingContext.SetColor(DARK_GREY);
x0 = (mVertical) ? mRect.width - (2 * pixelWidth) : 0;
y0 = (mVertical) ? 0 : mRect.height - (2 * pixelWidth);
x1 = (mVertical) ? x0 : mRect.width;
y1 = (mVertical) ? mRect.height : y0;
aRenderingContext.DrawLine(x0, y0, x1, y1);
}
if (widthInPixels >= 1) {
aRenderingContext.SetColor(BLACK);
x0 = (mVertical) ? mRect.width - pixelWidth : 0;
y0 = (mVertical) ? 0 : mRect.height - pixelWidth;
x1 = (mVertical) ? x0 : mRect.width;
y1 = (mVertical) ? mRect.height : y0;
aRenderingContext.DrawLine(x0, y0, x1, y1);
}
return NS_OK;
}
NS_METHOD nsHTMLFramesetBorderFrame::HandleEvent(nsIPresContext& aPresContext,
nsGUIEvent* aEvent,
nsEventStatus& aEventStatus)
{
if (!mCanResize) {
aEventStatus = nsEventStatus_eIgnore;
return NS_OK;
}
aEventStatus = nsEventStatus_eConsumeNoDefault;
nsIWidget* window;
nsCursor cursor;
switch (aEvent->message) {
case NS_MOUSE_ENTER:
case NS_MOUSE_MOVE:
GetWindow(window);
if (window) {
cursor = (mVertical) ? eCursor_sizeWE : eCursor_sizeNS;
window->SetCursor(eCursor_standard); // XXX why is this necessary
window->SetCursor(cursor);
NS_RELEASE(window);
}
break;
case NS_MOUSE_EXIT:
GetWindow(window);
if (window) {
cursor = (mVertical) ? eCursor_sizeWE : eCursor_sizeNS;
window->SetCursor(cursor); // XXX why is this necessary
window->SetCursor(eCursor_standard);
NS_RELEASE(window);
}
break;
case NS_MOUSE_LEFT_BUTTON_DOWN:
nsHTMLFramesetFrame* parentFrame = nsnull;
GetGeometricParent((nsIFrame*&)parentFrame);
parentFrame->StartMouseDrag(aPresContext, this, aEvent);
break;
}
return NS_OK;
}
NS_IMETHODIMP nsHTMLFramesetBorderFrame::ListTag(FILE* out) const
{
nsLeafFrame::ListTag(out);
fputs(" (BORDER)", out);
return NS_OK;
}
/*******************************************************************************
* nsHTMLFramesetBlankFrame
******************************************************************************/
nsHTMLFramesetBlankFrame::nsHTMLFramesetBlankFrame(nsIContent* aContent, nsIFrame* aParent)
: nsLeafFrame(aContent, aParent)
{
}
nsHTMLFramesetBlankFrame::~nsHTMLFramesetBlankFrame()
{
printf("nsHTMLFramesetBlankFrame destructor %X \n", this);
}
void nsHTMLFramesetBlankFrame::GetDesiredSize(nsIPresContext* aPresContext,
const nsHTMLReflowState& aReflowState,
nsHTMLReflowMetrics& aDesiredSize)
{
aDesiredSize.width = aReflowState.maxSize.width;
aDesiredSize.height = aReflowState.maxSize.height;
aDesiredSize.ascent = aDesiredSize.width;
aDesiredSize.descent = 0;
}
NS_IMETHODIMP
nsHTMLFramesetBlankFrame::Reflow(nsIPresContext& aPresContext,
nsHTMLReflowMetrics& aDesiredSize,
const nsHTMLReflowState& aReflowState,
nsReflowStatus& aStatus)
{
GetDesiredSize(&aPresContext, aReflowState, aDesiredSize);
aStatus = NS_FRAME_COMPLETE;
return NS_OK;
}
NS_METHOD
nsHTMLFramesetBlankFrame::Paint(nsIPresContext& aPresContext,
nsIRenderingContext& aRenderingContext,
const nsRect& aDirtyRect)
{
nscolor white = NS_RGB(255,255,255);
aRenderingContext.SetColor (white);
// XXX FillRect doesn't seem to work
//aRenderingContext.FillRect (mRect);
float p2t = aPresContext.GetPixelsToTwips();
nscoord x0 = 0;
nscoord y0 = 0;
nscoord x1 = x0;
nscoord y1 = mRect.height;
nscoord pixel = NSIntPixelsToTwips(1, p2t);
aRenderingContext.SetColor(white);
for (int i = 0; i < mRect.width; i += pixel) {
aRenderingContext.DrawLine (x0, y0, x1, y1);
x0 += NSIntPixelsToTwips(1, p2t);
x1 = x0;
}
return NS_OK;
}
NS_IMETHODIMP nsHTMLFramesetBlankFrame::List(FILE* out, PRInt32 aIndent) const
{
for (PRInt32 i = aIndent; --i >= 0; ) fputs(" ", out); // Indent
fprintf(out, "%X BLANK \n", this);
return nsLeafFrame::List(out, aIndent);
}
Ссылка в новой задаче Показать git blame Копировать постоянную ссылку