зеркало из https://github.com/mozilla/pjs.git
1020 строки
24 KiB
C++
1020 строки
24 KiB
C++
/* -*- 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 "nsImageMap.h"
|
|
#include "nsString.h"
|
|
#include "nsVoidArray.h"
|
|
#include "nsCoord.h"
|
|
#include "nsIRenderingContext.h"
|
|
#include "nsIPresContext.h"
|
|
#include "nsIURL.h"
|
|
#include "nsXIFConverter.h"
|
|
#include "nsISizeOfHandler.h"
|
|
#include "nsTextFragment.h"
|
|
#include "nsIContent.h"
|
|
#include "nsIDOMHTMLMapElement.h"
|
|
#include "nsIDOMHTMLAreaElement.h"
|
|
#include "nsIDOMHTMLCollection.h"
|
|
#include "nsIDocument.h"
|
|
|
|
class Area {
|
|
public:
|
|
Area(const nsString& aBaseURL, const nsString& aHREF,
|
|
const nsString& aTarget, const nsString& aAltText,
|
|
PRBool aSuppress);
|
|
virtual ~Area();
|
|
|
|
void ParseCoords(const nsString& aSpec);
|
|
|
|
virtual PRBool IsInside(nscoord x, nscoord y) = 0;
|
|
virtual void Draw(nsIPresContext& aCX,
|
|
nsIRenderingContext& aRC) = 0;
|
|
virtual void GetShapeName(nsString& aResult) const = 0;
|
|
|
|
void ToHTML(nsString& aResult);
|
|
|
|
|
|
/**
|
|
* Translate the content object into the (XIF) XML Interchange Format
|
|
* XIF is an intermediate form of the content model, the buffer
|
|
* will then be parsed into any number of formats including HTML, TXT, etc.
|
|
*/
|
|
virtual void BeginConvertToXIF(nsXIFConverter& aConverter) const;
|
|
virtual void ConvertContentToXIF(nsXIFConverter& aConverter) const;
|
|
virtual void FinishConvertToXIF(nsXIFConverter& aConverter) const;
|
|
|
|
|
|
|
|
const nsString& GetBase() const { return mBase; }
|
|
const nsString& GetHREF() const { return mHREF; }
|
|
const nsString& GetTarget() const { return mTarget; }
|
|
const nsString& GetAltText() const { return mAltText; }
|
|
PRBool GetSuppress() const { return mSuppressFeedback; }
|
|
|
|
virtual void SizeOf(nsISizeOfHandler* aHandler) const;
|
|
|
|
nsString mBase;
|
|
nsString mHREF;
|
|
nsString mTarget;
|
|
nsString mAltText;
|
|
nscoord* mCoords;
|
|
PRInt32 mNumCoords;
|
|
PRBool mSuppressFeedback;
|
|
};
|
|
|
|
Area::Area(const nsString& aBaseURL, const nsString& aHREF,
|
|
const nsString& aTarget, const nsString& aAltText,
|
|
PRBool aSuppress)
|
|
: mBase(aBaseURL), mHREF(aHREF), mTarget(aTarget), mAltText(aAltText),
|
|
mSuppressFeedback(aSuppress)
|
|
{
|
|
mCoords = nsnull;
|
|
mNumCoords = 0;
|
|
}
|
|
|
|
Area::~Area()
|
|
{
|
|
delete [] mCoords;
|
|
}
|
|
|
|
void
|
|
Area::SizeOf(nsISizeOfHandler* aHandler) const
|
|
{
|
|
aHandler->Add(sizeof(*this));
|
|
aHandler->Add((size_t) (- ((PRInt32)sizeof(nsString) * 4) ) );
|
|
mBase.SizeOf(aHandler);
|
|
mHREF.SizeOf(aHandler);
|
|
mTarget.SizeOf(aHandler);
|
|
mAltText.SizeOf(aHandler);
|
|
aHandler->Add(mNumCoords * sizeof(nscoord));
|
|
}
|
|
|
|
#include <stdlib.h>
|
|
#define XP_ATOI(_s) ::atoi(_s)
|
|
|
|
// XXX straight copy from laymap.c
|
|
static nscoord* lo_parse_coord_list(char *str, PRInt32* value_cnt)
|
|
{
|
|
char *tptr;
|
|
char *n_str;
|
|
PRInt32 i, cnt;
|
|
PRInt32 *value_list;
|
|
|
|
/*
|
|
* Nothing in an empty list
|
|
*/
|
|
*value_cnt = 0;
|
|
if ((str == NULL)||(*str == '\0'))
|
|
{
|
|
return((PRInt32 *)NULL);
|
|
}
|
|
|
|
/*
|
|
* Skip beginning whitespace, all whitespace is empty list.
|
|
*/
|
|
n_str = str;
|
|
while (XP_IS_SPACE(*n_str))
|
|
{
|
|
n_str++;
|
|
}
|
|
if (*n_str == '\0')
|
|
{
|
|
return((PRInt32 *)NULL);
|
|
}
|
|
|
|
/*
|
|
* Make a pass where any two numbers separated by just whitespace
|
|
* are given a comma separator. Count entries while passing.
|
|
*/
|
|
cnt = 0;
|
|
while (*n_str != '\0')
|
|
{
|
|
PRBool has_comma;
|
|
|
|
/*
|
|
* Skip to a separator
|
|
*/
|
|
tptr = n_str;
|
|
while ((!XP_IS_SPACE(*tptr))&&(*tptr != ',')&&(*tptr != '\0'))
|
|
{
|
|
tptr++;
|
|
}
|
|
n_str = tptr;
|
|
|
|
/*
|
|
* If no more entries, break out here
|
|
*/
|
|
if (*n_str == '\0')
|
|
{
|
|
break;
|
|
}
|
|
|
|
/*
|
|
* Skip to the end of the separator, noting if we have a
|
|
* comma.
|
|
*/
|
|
has_comma = PR_FALSE;
|
|
while ((XP_IS_SPACE(*tptr))||(*tptr == ','))
|
|
{
|
|
if (*tptr == ',')
|
|
{
|
|
if (has_comma == PR_FALSE)
|
|
{
|
|
has_comma = PR_TRUE;
|
|
}
|
|
else
|
|
{
|
|
break;
|
|
}
|
|
}
|
|
tptr++;
|
|
}
|
|
/*
|
|
* If this was trailing whitespace we skipped, we are done.
|
|
*/
|
|
if ((*tptr == '\0')&&(has_comma == PR_FALSE))
|
|
{
|
|
break;
|
|
}
|
|
/*
|
|
* Else if the separator is all whitespace, and this is not the
|
|
* end of the string, add a comma to the separator.
|
|
*/
|
|
else if (has_comma == PR_FALSE)
|
|
{
|
|
*n_str = ',';
|
|
}
|
|
|
|
/*
|
|
* count the entry skipped.
|
|
*/
|
|
cnt++;
|
|
|
|
n_str = tptr;
|
|
}
|
|
/*
|
|
* count the last entry in the list.
|
|
*/
|
|
cnt++;
|
|
|
|
*value_cnt = cnt;
|
|
|
|
/*
|
|
* Allocate space for the coordinate array.
|
|
*/
|
|
value_list = new nscoord[cnt];
|
|
if (value_list == NULL)
|
|
{
|
|
return((PRInt32 *)NULL);
|
|
}
|
|
|
|
/*
|
|
* Second pass to copy integer values into list.
|
|
*/
|
|
tptr = str;
|
|
for (i=0; i<cnt; i++)
|
|
{
|
|
char *ptr;
|
|
|
|
ptr = strchr(tptr, ',');
|
|
if (ptr != NULL)
|
|
{
|
|
*ptr = '\0';
|
|
}
|
|
/*
|
|
* Strip whitespace in front of number because I don't
|
|
* trust atoi to do it on all platforms.
|
|
*/
|
|
while (XP_IS_SPACE(*tptr))
|
|
{
|
|
tptr++;
|
|
}
|
|
if (*tptr == '\0')
|
|
{
|
|
value_list[i] = 0;
|
|
}
|
|
else
|
|
{
|
|
value_list[i] = (nscoord)XP_ATOI(tptr);
|
|
}
|
|
if (ptr != NULL)
|
|
{
|
|
*ptr = ',';
|
|
tptr = (char *)(ptr + 1);
|
|
}
|
|
}
|
|
return(value_list);
|
|
}
|
|
|
|
void Area::ParseCoords(const nsString& aSpec)
|
|
{
|
|
char* cp = aSpec.ToNewCString();
|
|
mCoords = lo_parse_coord_list(cp, &mNumCoords);
|
|
delete cp;
|
|
}
|
|
|
|
void Area::ToHTML(nsString& aResult)
|
|
{
|
|
aResult.Truncate();
|
|
aResult.Append("<AREA SHAPE=");
|
|
nsAutoString shape;
|
|
GetShapeName(shape);
|
|
aResult.Append(shape);
|
|
aResult.Append(" COORDS=\"");
|
|
if (nsnull != mCoords) {
|
|
PRInt32 i, n = mNumCoords;
|
|
for (i = 0; i < n; i++) {
|
|
aResult.Append(mCoords[i], 10);
|
|
if (i < n - 1) {
|
|
aResult.Append(',');
|
|
}
|
|
}
|
|
}
|
|
aResult.Append("\" HREF=\"");
|
|
aResult.Append(mHREF);
|
|
aResult.Append("\"");
|
|
if (0 < mTarget.Length()) {
|
|
aResult.Append(" TARGET=\"");
|
|
aResult.Append(mTarget);
|
|
aResult.Append("\"");
|
|
}
|
|
if (0 < mAltText.Length()) {
|
|
aResult.Append(" ALT=\"");
|
|
aResult.Append(mAltText);
|
|
aResult.Append("\"");
|
|
}
|
|
if (mSuppressFeedback) {
|
|
aResult.Append(" SUPPRESS");
|
|
}
|
|
aResult.Append('>');
|
|
}
|
|
|
|
/**
|
|
* Translate the content object into the (XIF) XML Interchange Format
|
|
* XIF is an intermediate form of the content model, the buffer
|
|
* will then be parsed into any number of formats including HTML, TXT, etc.
|
|
*/
|
|
|
|
void Area::BeginConvertToXIF(nsXIFConverter& aConverter) const
|
|
{
|
|
nsAutoString tag("area");
|
|
aConverter.BeginStartTag(tag);
|
|
|
|
|
|
nsAutoString name("shape");
|
|
nsAutoString shape;
|
|
GetShapeName(shape);
|
|
aConverter.AddAttribute(name,shape);
|
|
|
|
|
|
nsAutoString coords;
|
|
if (nsnull != mCoords) {
|
|
PRInt32 i, n = mNumCoords;
|
|
for (i = 0; i < n; i++) {
|
|
coords.Append(mCoords[i], 10);
|
|
if (i < n - 1) {
|
|
coords.Append(',');
|
|
}
|
|
}
|
|
}
|
|
name.SetString("coords");
|
|
aConverter.AddAttribute(name,coords);
|
|
|
|
name.SetString("href");
|
|
aConverter.AddAttribute(name,mHREF);
|
|
|
|
|
|
if (0 < mTarget.Length()) {
|
|
name.SetString("target");
|
|
aConverter.AddAttribute(name,mTarget);
|
|
}
|
|
if (0 < mAltText.Length()) {
|
|
name.SetString("alt");
|
|
aConverter.AddAttribute(name,mTarget);
|
|
}
|
|
if (mSuppressFeedback) {
|
|
name.SetString("suppress");
|
|
aConverter.AddAttribute(name);
|
|
}
|
|
}
|
|
|
|
void Area::FinishConvertToXIF(nsXIFConverter& aConverter) const
|
|
{
|
|
nsAutoString tag("area");
|
|
aConverter.FinishStartTag(tag,PR_TRUE);
|
|
}
|
|
|
|
void Area::ConvertContentToXIF(nsXIFConverter& aConverter) const
|
|
{
|
|
// Nothing needs to be done here, all of the logic
|
|
// is handled in the start and finish methods
|
|
|
|
}
|
|
|
|
|
|
//----------------------------------------------------------------------
|
|
|
|
class DefaultArea : public Area {
|
|
public:
|
|
DefaultArea(const nsString& aBaseURL, const nsString& aHREF,
|
|
const nsString& aTarget, const nsString& aAltText,
|
|
PRBool aSuppress);
|
|
~DefaultArea();
|
|
|
|
virtual PRBool IsInside(nscoord x, nscoord y);
|
|
virtual void Draw(nsIPresContext& aCX,
|
|
nsIRenderingContext& aRC);
|
|
virtual void GetShapeName(nsString& aResult) const;
|
|
};
|
|
|
|
DefaultArea::DefaultArea(const nsString& aBaseURL, const nsString& aHREF,
|
|
const nsString& aTarget, const nsString& aAltText,
|
|
PRBool aSuppress)
|
|
: Area(aBaseURL, aHREF, aTarget, aAltText, aSuppress)
|
|
{
|
|
}
|
|
|
|
DefaultArea::~DefaultArea()
|
|
{
|
|
}
|
|
|
|
PRBool DefaultArea::IsInside(nscoord x, nscoord y)
|
|
{
|
|
return PR_TRUE;
|
|
}
|
|
|
|
void DefaultArea::Draw(nsIPresContext& aCX, nsIRenderingContext& aRC)
|
|
{
|
|
}
|
|
|
|
void DefaultArea::GetShapeName(nsString& aResult) const
|
|
{
|
|
aResult.Append("default");
|
|
}
|
|
|
|
//----------------------------------------------------------------------
|
|
|
|
class RectArea : public Area {
|
|
public:
|
|
RectArea(const nsString& aBaseURL, const nsString& aHREF,
|
|
const nsString& aTarget, const nsString& aAltText,
|
|
PRBool aSuppress);
|
|
~RectArea();
|
|
|
|
virtual PRBool IsInside(nscoord x, nscoord y);
|
|
virtual void Draw(nsIPresContext& aCX,
|
|
nsIRenderingContext& aRC);
|
|
virtual void GetShapeName(nsString& aResult) const;
|
|
};
|
|
|
|
RectArea::RectArea(const nsString& aBaseURL, const nsString& aHREF,
|
|
const nsString& aTarget, const nsString& aAltText,
|
|
PRBool aSuppress)
|
|
: Area(aBaseURL, aHREF, aTarget, aAltText, aSuppress)
|
|
{
|
|
}
|
|
|
|
RectArea::~RectArea()
|
|
{
|
|
}
|
|
|
|
PRBool RectArea::IsInside(nscoord x, nscoord y)
|
|
{
|
|
if (mNumCoords >= 4) { // Note: > is for nav compatabilty
|
|
nscoord x1 = mCoords[0];
|
|
nscoord y1 = mCoords[1];
|
|
nscoord x2 = mCoords[2];
|
|
nscoord y2 = mCoords[3];
|
|
if ((x1 > x2)|| (y1 > y2)) {
|
|
// Can't be inside a screwed up rect
|
|
return PR_FALSE;
|
|
}
|
|
if ((x >= x1) && (x <= x2) && (y >= y1) && (y <= y2)) {
|
|
return PR_TRUE;
|
|
}
|
|
}
|
|
return PR_FALSE;
|
|
}
|
|
|
|
void RectArea::Draw(nsIPresContext& aCX, nsIRenderingContext& aRC)
|
|
{
|
|
if (mNumCoords >= 4) {
|
|
float p2t = aCX.GetPixelsToTwips();
|
|
nscoord x1 = NSIntPixelsToTwips(mCoords[0], p2t);
|
|
nscoord y1 = NSIntPixelsToTwips(mCoords[1], p2t);
|
|
nscoord x2 = NSIntPixelsToTwips(mCoords[2], p2t);
|
|
nscoord y2 = NSIntPixelsToTwips(mCoords[3], p2t);
|
|
if ((x1 > x2)|| (y1 > y2)) {
|
|
return;
|
|
}
|
|
aRC.DrawRect(x1, y1, x2 - x1, y2 - y1);
|
|
}
|
|
}
|
|
|
|
void RectArea::GetShapeName(nsString& aResult) const
|
|
{
|
|
aResult.Append("rect");
|
|
}
|
|
|
|
//----------------------------------------------------------------------
|
|
|
|
class PolyArea : public Area {
|
|
public:
|
|
PolyArea(const nsString& aBaseURL, const nsString& aHREF,
|
|
const nsString& aTarget, const nsString& aAltText,
|
|
PRBool aSuppress);
|
|
~PolyArea();
|
|
|
|
virtual PRBool IsInside(nscoord x, nscoord y);
|
|
virtual void Draw(nsIPresContext& aCX,
|
|
nsIRenderingContext& aRC);
|
|
virtual void GetShapeName(nsString& aResult) const;
|
|
};
|
|
|
|
PolyArea::PolyArea(const nsString& aBaseURL, const nsString& aHREF,
|
|
const nsString& aTarget, const nsString& aAltText,
|
|
PRBool aSuppress)
|
|
: Area(aBaseURL, aHREF, aTarget, aAltText, aSuppress)
|
|
{
|
|
}
|
|
|
|
PolyArea::~PolyArea()
|
|
{
|
|
}
|
|
|
|
PRBool PolyArea::IsInside(nscoord x, nscoord y)
|
|
{
|
|
if (mNumCoords >= 6) {
|
|
PRInt32 intersects = 0;
|
|
nscoord wherex = x;
|
|
nscoord wherey = y;
|
|
PRInt32 totalv = mNumCoords / 2;
|
|
PRInt32 totalc = totalv * 2;
|
|
nscoord xval = mCoords[totalc - 2];
|
|
nscoord yval = mCoords[totalc - 1];
|
|
PRInt32 end = totalc;
|
|
PRInt32 pointer = 1;
|
|
|
|
if ((yval >= wherey) != (mCoords[pointer] >= wherey))
|
|
if ((xval >= wherex) == (mCoords[0] >= wherex))
|
|
intersects += (xval >= wherex) ? 1 : 0;
|
|
else
|
|
intersects += ((xval - (yval - wherey) *
|
|
(mCoords[0] - xval) /
|
|
(mCoords[pointer] - yval)) >= wherex) ? 1 : 0;
|
|
|
|
// XXX I wonder what this is doing; this is a translation of ptinpoly.c
|
|
while (pointer < end) {
|
|
yval = mCoords[pointer];
|
|
pointer += 2;
|
|
if (yval >= wherey) {
|
|
while((pointer < end) && (mCoords[pointer] >= wherey))
|
|
pointer+=2;
|
|
if (pointer >= end)
|
|
break;
|
|
if ((mCoords[pointer-3] >= wherex) ==
|
|
(mCoords[pointer-1] >= wherex)) {
|
|
intersects += (mCoords[pointer-3] >= wherex) ? 1 : 0;
|
|
} else {
|
|
intersects +=
|
|
((mCoords[pointer-3] - (mCoords[pointer-2] - wherey) *
|
|
(mCoords[pointer-1] - mCoords[pointer-3]) /
|
|
(mCoords[pointer] - mCoords[pointer - 2])) >= wherex) ? 1:0;
|
|
}
|
|
} else {
|
|
while((pointer < end) && (mCoords[pointer] < wherey))
|
|
pointer+=2;
|
|
if (pointer >= end)
|
|
break;
|
|
if ((mCoords[pointer-3] >= wherex) ==
|
|
(mCoords[pointer-1] >= wherex)) {
|
|
intersects += (mCoords[pointer-3] >= wherex) ? 1:0;
|
|
} else {
|
|
intersects +=
|
|
((mCoords[pointer-3] - (mCoords[pointer-2] - wherey) *
|
|
(mCoords[pointer-1] - mCoords[pointer-3]) /
|
|
(mCoords[pointer] - mCoords[pointer - 2])) >= wherex) ? 1:0;
|
|
}
|
|
}
|
|
}
|
|
if ((intersects & 1) != 0) {
|
|
return PR_TRUE;
|
|
}
|
|
}
|
|
return PR_FALSE;
|
|
}
|
|
|
|
void PolyArea::Draw(nsIPresContext& aCX, nsIRenderingContext& aRC)
|
|
{
|
|
if (mNumCoords >= 6) {
|
|
float p2t = aCX.GetPixelsToTwips();
|
|
nscoord x0 = NSIntPixelsToTwips(mCoords[0], p2t);
|
|
nscoord y0 = NSIntPixelsToTwips(mCoords[1], p2t);
|
|
for (PRInt32 i = 2; i < mNumCoords; i += 2) {
|
|
nscoord x1 = NSIntPixelsToTwips(mCoords[i], p2t);
|
|
nscoord y1 = NSIntPixelsToTwips(mCoords[i+1], p2t);
|
|
aRC.DrawLine(x0, y0, x1, y1);
|
|
x0 = x1;
|
|
y0 = y1;
|
|
}
|
|
aRC.DrawLine(x0, y0, mCoords[0], mCoords[1]);
|
|
}
|
|
}
|
|
|
|
void PolyArea::GetShapeName(nsString& aResult) const
|
|
{
|
|
aResult.Append("polygon");
|
|
}
|
|
|
|
//----------------------------------------------------------------------
|
|
|
|
class CircleArea : public Area {
|
|
public:
|
|
CircleArea(const nsString& aBaseURL, const nsString& aHREF,
|
|
const nsString& aTarget, const nsString& aAltText,
|
|
PRBool aSuppress);
|
|
~CircleArea();
|
|
|
|
virtual PRBool IsInside(nscoord x, nscoord y);
|
|
virtual void Draw(nsIPresContext& aCX,
|
|
nsIRenderingContext& aRC);
|
|
virtual void GetShapeName(nsString& aResult) const;
|
|
};
|
|
|
|
CircleArea::CircleArea(const nsString& aBaseURL, const nsString& aHREF,
|
|
const nsString& aTarget, const nsString& aAltText,
|
|
PRBool aSuppress)
|
|
: Area(aBaseURL, aHREF, aTarget, aAltText, aSuppress)
|
|
{
|
|
}
|
|
|
|
CircleArea::~CircleArea()
|
|
{
|
|
}
|
|
|
|
PRBool CircleArea::IsInside(nscoord x, nscoord y)
|
|
{
|
|
// Note: > is for nav compatabilty
|
|
if (mNumCoords >= 3) {
|
|
nscoord x1 = mCoords[0];
|
|
nscoord y1 = mCoords[1];
|
|
nscoord radius = mCoords[2];
|
|
if (radius < 0) {
|
|
return PR_FALSE;
|
|
}
|
|
nscoord dx = x1 - x;
|
|
nscoord dy = y1 - y;
|
|
nscoord dist = (dx * dx) + (dy * dy);
|
|
if (dist <= (radius * radius)) {
|
|
return PR_TRUE;
|
|
}
|
|
}
|
|
return PR_FALSE;
|
|
}
|
|
|
|
void CircleArea::Draw(nsIPresContext& aCX, nsIRenderingContext& aRC)
|
|
{
|
|
if (mNumCoords >= 3) {
|
|
float p2t = aCX.GetPixelsToTwips();
|
|
nscoord x1 = NSIntPixelsToTwips(mCoords[0], p2t);
|
|
nscoord y1 = NSIntPixelsToTwips(mCoords[1], p2t);
|
|
nscoord radius = NSIntPixelsToTwips(mCoords[2], p2t);
|
|
if (radius < 0) {
|
|
return;
|
|
}
|
|
nscoord x = x1 - radius / 2;
|
|
nscoord y = y1 - radius / 2;
|
|
nscoord w = 2 * radius;
|
|
aRC.DrawEllipse(x, y, w, w);
|
|
}
|
|
}
|
|
|
|
void CircleArea::GetShapeName(nsString& aResult) const
|
|
{
|
|
aResult.Append("circle");
|
|
}
|
|
|
|
//----------------------------------------------------------------------
|
|
|
|
static NS_DEFINE_IID(kIContentIID, NS_ICONTENT_IID);
|
|
static NS_DEFINE_IID(kIDOMHTMLAreaElementIID, NS_IDOMHTMLAREAELEMENT_IID);
|
|
static NS_DEFINE_IID(kIDocumentObserverIID, NS_IDOCUMENT_OBSERVER_IID);
|
|
|
|
nsImageMap::nsImageMap()
|
|
{
|
|
mMap = nsnull;
|
|
mDomMap = nsnull;
|
|
mRefCnt = 1;
|
|
mDocument = nsnull;
|
|
}
|
|
|
|
nsImageMap::~nsImageMap()
|
|
{
|
|
FreeAreas();
|
|
if (nsnull != mDocument) {
|
|
mDocument->RemoveObserver(NS_STATIC_CAST(nsIDocumentObserver*, this));
|
|
NS_RELEASE(mDocument);
|
|
}
|
|
NS_IF_RELEASE(mDomMap);
|
|
NS_IF_RELEASE(mMap);
|
|
}
|
|
|
|
NS_IMPL_ISUPPORTS(nsImageMap, kIDocumentObserverIID);
|
|
|
|
void
|
|
nsImageMap::FreeAreas()
|
|
{
|
|
PRInt32 i, n = mAreas.Count();
|
|
for (i = 0; i < n; i++) {
|
|
Area* area = (Area*) mAreas.ElementAt(i);
|
|
delete area;
|
|
}
|
|
mAreas.Clear();
|
|
}
|
|
|
|
nsresult
|
|
nsImageMap::Init(nsIDOMHTMLMapElement* aMap)
|
|
{
|
|
NS_PRECONDITION(nsnull != aMap, "null ptr");
|
|
if (nsnull == aMap) {
|
|
return NS_ERROR_NULL_POINTER;
|
|
}
|
|
mDomMap = aMap;
|
|
NS_ADDREF(aMap);
|
|
|
|
nsresult rv = aMap->QueryInterface(kIContentIID, (void**) &mMap);
|
|
if (NS_SUCCEEDED(rv)) {
|
|
rv = mMap->GetDocument(mDocument);
|
|
if (NS_SUCCEEDED(rv) && (nsnull != mDocument)) {
|
|
mDocument->AddObserver(NS_STATIC_CAST(nsIDocumentObserver*, this));
|
|
}
|
|
}
|
|
|
|
// "Compile" the areas in the map into faster access versions
|
|
rv = UpdateAreas();
|
|
return rv;
|
|
}
|
|
|
|
nsresult
|
|
nsImageMap::UpdateAreas()
|
|
{
|
|
// Get rid of old area data
|
|
FreeAreas();
|
|
|
|
nsIDOMHTMLCollection* col = nsnull;
|
|
nsresult rv = mDomMap->GetAreas(&col);
|
|
if (NS_FAILED(rv)) {
|
|
return rv;
|
|
}
|
|
if (nsnull != col) {
|
|
PRUint32 i, n;
|
|
col->GetLength(&n);
|
|
for (i = 0; (i < n) && NS_SUCCEEDED(rv); i++) {
|
|
nsIDOMNode* node = nsnull;
|
|
rv = col->Item(i, &node);
|
|
if (NS_SUCCEEDED(rv) && (nsnull != node)) {
|
|
nsIDOMHTMLAreaElement* area;
|
|
rv = node->QueryInterface(kIDOMHTMLAreaElementIID, (void**) &area);
|
|
if (NS_SUCCEEDED(rv)) {
|
|
rv = AddArea(area);
|
|
NS_RELEASE(area);
|
|
}
|
|
else {
|
|
rv = NS_OK;
|
|
}
|
|
NS_RELEASE(node);
|
|
}
|
|
}
|
|
NS_RELEASE(col);
|
|
}
|
|
return rv;
|
|
}
|
|
|
|
nsresult
|
|
nsImageMap::AddArea(nsIDOMHTMLAreaElement* aArea)
|
|
{
|
|
nsAutoString shape, coords, baseURL, href, target, altText;
|
|
aArea->GetShape(shape);
|
|
aArea->GetCoords(coords);
|
|
aArea->GetHref(href);
|
|
aArea->GetTarget(target);
|
|
aArea->GetAlt(altText);
|
|
PRBool suppress = PR_FALSE;/* XXX */
|
|
|
|
Area* area;
|
|
if ((0 == shape.Length()) || shape.EqualsIgnoreCase("rect")) {
|
|
area = new RectArea(baseURL, href, target, altText, suppress);
|
|
} else if (shape.EqualsIgnoreCase("poly") ||
|
|
shape.EqualsIgnoreCase("polygon")) {
|
|
area = new PolyArea(baseURL, href, target, altText, suppress);
|
|
} else if (shape.EqualsIgnoreCase("circle")) {
|
|
area = new CircleArea(baseURL, href, target, altText, suppress);
|
|
}
|
|
else {
|
|
area = new DefaultArea(baseURL, href, target, altText, suppress);
|
|
}
|
|
area->ParseCoords(coords);
|
|
mAreas.AppendElement(area);
|
|
return NS_OK;
|
|
}
|
|
|
|
PRBool
|
|
nsImageMap::IsInside(nscoord aX, nscoord aY,
|
|
nsIURL* aDocURL,
|
|
nsString& aAbsURL,
|
|
nsString& aTarget,
|
|
nsString& aAltText,
|
|
PRBool* aSuppress)
|
|
{
|
|
PRInt32 i, n = mAreas.Count();
|
|
for (i = 0; i < n; i++) {
|
|
Area* area = (Area*) mAreas.ElementAt(i);
|
|
if (area->IsInside(aX, aY)) {
|
|
NS_MakeAbsoluteURL(aDocURL, area->mBase, area->mHREF, aAbsURL);
|
|
aTarget = area->mTarget;
|
|
aAltText = area->mAltText;
|
|
*aSuppress = area->mSuppressFeedback;
|
|
return PR_TRUE;
|
|
}
|
|
}
|
|
return PR_FALSE;
|
|
}
|
|
|
|
PRBool
|
|
nsImageMap::IsInside(nscoord aX, nscoord aY)
|
|
{
|
|
PRInt32 i, n = mAreas.Count();
|
|
for (i = 0; i < n; i++) {
|
|
Area* area = (Area*) mAreas.ElementAt(i);
|
|
if (area->IsInside(aX, aY)) {
|
|
if ((area->mHREF).Length() > 0) {
|
|
return PR_TRUE;
|
|
}
|
|
}
|
|
}
|
|
return PR_FALSE;
|
|
}
|
|
|
|
void
|
|
nsImageMap::Draw(nsIPresContext& aCX, nsIRenderingContext& aRC)
|
|
{
|
|
PRInt32 i, n = mAreas.Count();
|
|
for (i = 0; i < n; i++) {
|
|
Area* area = (Area*) mAreas.ElementAt(i);
|
|
area->Draw(aCX, aRC);
|
|
}
|
|
}
|
|
|
|
#if 0
|
|
NS_IMETHODIMP
|
|
nsImageMap::SizeOf(nsISizeOfHandler* aHandler) const
|
|
{
|
|
aHandler->Add(sizeof(*this));
|
|
|
|
aHandler->Add((size_t) (- ((PRInt32) sizeof(mName))));
|
|
mName.SizeOf(aHandler);
|
|
|
|
if (!aHandler->HaveSeen(mTag)) {
|
|
mTag->SizeOf(aHandler);
|
|
}
|
|
|
|
aHandler->Add((size_t) (- ((PRInt32) sizeof(mAreas))));
|
|
mAreas.SizeOf(aHandler);
|
|
|
|
PRInt32 i, n = mAreas.Count();
|
|
for (i = 0; i < n; i++) {
|
|
Area* area = (Area*) mAreas[i];
|
|
area->SizeOf(aHandler);
|
|
}
|
|
return NS_OK;
|
|
}
|
|
#endif
|
|
|
|
NS_IMETHODIMP
|
|
nsImageMap::BeginUpdate(nsIDocument *aDocument)
|
|
{
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsImageMap::EndUpdate(nsIDocument *aDocument)
|
|
{
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsImageMap::BeginLoad(nsIDocument *aDocument)
|
|
{
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsImageMap::EndLoad(nsIDocument *aDocument)
|
|
{
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsImageMap::BeginReflow(nsIDocument *aDocument, nsIPresShell* aShell)
|
|
{
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsImageMap::EndReflow(nsIDocument *aDocument, nsIPresShell* aShell)
|
|
{
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsImageMap::ContentChanged(nsIDocument *aDocument,
|
|
nsIContent* aContent,
|
|
nsISupports* aSubContent)
|
|
{
|
|
// If the parent of the changing content node is our map then update
|
|
// the map.
|
|
nsIContent* parent;
|
|
nsresult rv = aContent->GetParent(parent);
|
|
if (NS_SUCCEEDED(rv) && (nsnull != parent)) {
|
|
if (parent == mMap) {
|
|
UpdateAreas();
|
|
}
|
|
NS_RELEASE(parent);
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsImageMap::AttributeChanged(nsIDocument *aDocument,
|
|
nsIContent* aContent,
|
|
nsIAtom* aAttribute,
|
|
PRInt32 aHint)
|
|
{
|
|
// If the parent of the changing content node is our map then update
|
|
// the map.
|
|
nsIContent* parent;
|
|
nsresult rv = aContent->GetParent(parent);
|
|
if (NS_SUCCEEDED(rv) && (nsnull != parent)) {
|
|
if (parent == mMap) {
|
|
UpdateAreas();
|
|
}
|
|
NS_RELEASE(parent);
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsImageMap::ContentAppended(nsIDocument *aDocument,
|
|
nsIContent* aContainer,
|
|
PRInt32 aNewIndexInContainer)
|
|
{
|
|
if (mMap == aContainer) {
|
|
UpdateAreas();
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsImageMap::ContentInserted(nsIDocument *aDocument,
|
|
nsIContent* aContainer,
|
|
nsIContent* aChild,
|
|
PRInt32 aIndexInContainer)
|
|
{
|
|
if (mMap == aContainer) {
|
|
UpdateAreas();
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsImageMap::ContentReplaced(nsIDocument *aDocument,
|
|
nsIContent* aContainer,
|
|
nsIContent* aOldChild,
|
|
nsIContent* aNewChild,
|
|
PRInt32 aIndexInContainer)
|
|
{
|
|
if (mMap == aContainer) {
|
|
UpdateAreas();
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsImageMap::ContentRemoved(nsIDocument *aDocument,
|
|
nsIContent* aContainer,
|
|
nsIContent* aChild,
|
|
PRInt32 aIndexInContainer)
|
|
{
|
|
if (mMap == aContainer) {
|
|
UpdateAreas();
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsImageMap::StyleSheetAdded(nsIDocument *aDocument,
|
|
nsIStyleSheet* aStyleSheet)
|
|
{
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsImageMap::StyleSheetRemoved(nsIDocument *aDocument,
|
|
nsIStyleSheet* aStyleSheet)
|
|
{
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsImageMap::StyleSheetDisabledStateChanged(nsIDocument *aDocument,
|
|
nsIStyleSheet* aStyleSheet,
|
|
PRBool aDisabled)
|
|
{
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsImageMap::StyleRuleChanged(nsIDocument *aDocument,
|
|
nsIStyleSheet* aStyleSheet,
|
|
nsIStyleRule* aStyleRule,
|
|
PRInt32 aHint)
|
|
{
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsImageMap::StyleRuleAdded(nsIDocument *aDocument,
|
|
nsIStyleSheet* aStyleSheet,
|
|
nsIStyleRule* aStyleRule)
|
|
{
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsImageMap::StyleRuleRemoved(nsIDocument *aDocument,
|
|
nsIStyleSheet* aStyleSheet,
|
|
nsIStyleRule* aStyleRule)
|
|
{
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsImageMap::DocumentWillBeDestroyed(nsIDocument *aDocument)
|
|
{
|
|
return NS_OK;
|
|
}
|