mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-11-05 08:35:26 +00:00
1268 lines
32 KiB
C++
1268 lines
32 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* ***** BEGIN LICENSE BLOCK *****
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* Version: NPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Netscape Public License
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* Version 1.1 (the "License"); you may not use this file except in
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* compliance with the License. You may obtain a copy of the License at
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* http://www.mozilla.org/NPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is mozilla.org code.
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*
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* The Initial Developer of the Original Code is
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* Netscape Communications Corporation.
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* Portions created by the Initial Developer are Copyright (C) 1998
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the NPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the NPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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#include "nsImageMap.h"
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#include "nsString.h"
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#include "nsReadableUtils.h"
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#include "nsVoidArray.h"
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#include "nsIRenderingContext.h"
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#include "nsIPresContext.h"
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#include "nsIURL.h"
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#include "nsIURL.h"
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#include "nsIServiceManager.h"
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#include "nsNetUtil.h"
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#include "nsISizeOfHandler.h"
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#include "nsTextFragment.h"
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#include "nsIContent.h"
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#include "nsIDOMHTMLElement.h"
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#include "nsIDOMHTMLMapElement.h"
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#include "nsIDOMHTMLAreaElement.h"
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#include "nsIDOMHTMLAnchorElement.h"
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#include "nsIDOMHTMLCollection.h"
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#include "nsIDocument.h"
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#include "nsINameSpaceManager.h"
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#include "nsHTMLAtoms.h"
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#include "nsIHTMLContent.h"
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#include "nsIDOMEventReceiver.h"
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#include "nsIPresShell.h"
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#include "nsIFrame.h"
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#include "nsIFrameManager.h"
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#include "nsIViewManager.h"
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#include "nsCoord.h"
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#include "nsIImageMap.h"
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#include "nsIConsoleService.h"
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#include "nsIScriptError.h"
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#include "nsIStringBundle.h"
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#include "nsIDocument.h"
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#include "nsINodeInfo.h"
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static NS_DEFINE_CID(kCStringBundleServiceCID, NS_STRINGBUNDLESERVICE_CID);
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class Area {
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public:
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Area(nsIContent* aArea, PRBool aHasURL);
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virtual ~Area();
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virtual void ParseCoords(const nsAString& aSpec);
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virtual PRBool IsInside(nscoord x, nscoord y) const = 0;
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virtual void Draw(nsIPresContext* aCX,
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nsIRenderingContext& aRC) = 0;
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virtual void GetRect(nsIPresContext* aCX, nsRect& aRect) = 0;
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void HasFocus(PRBool aHasFocus);
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void GetHREF(nsAString& aHref) const;
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void GetTarget(nsAString& aTarget) const;
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void GetAltText(nsAString& aAltText) const;
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PRBool GetHasURL() const { return mHasURL; }
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void GetArea(nsIContent** aArea) const;
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#ifdef DEBUG
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virtual void SizeOf(nsISizeOfHandler* aHandler, PRUint32* aResult) const;
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#endif
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nsCOMPtr<nsIContent> mArea;
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nscoord* mCoords;
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PRInt32 mNumCoords;
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PRPackedBool mHasURL;
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PRPackedBool mHasFocus;
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};
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MOZ_DECL_CTOR_COUNTER(Area)
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Area::Area(nsIContent* aArea, PRBool aHasURL)
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: mArea(aArea), mHasURL(aHasURL)
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{
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MOZ_COUNT_CTOR(Area);
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mCoords = nsnull;
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mNumCoords = 0;
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mHasFocus = PR_FALSE;
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}
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Area::~Area()
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{
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MOZ_COUNT_DTOR(Area);
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delete [] mCoords;
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}
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void
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Area::GetHREF(nsAString& aHref) const
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{
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aHref.Truncate();
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if (mArea) {
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mArea->GetAttr(kNameSpaceID_None, nsHTMLAtoms::href, aHref);
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}
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}
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void
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Area::GetTarget(nsAString& aTarget) const
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{
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aTarget.Truncate();
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if (mArea) {
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mArea->GetAttr(kNameSpaceID_None, nsHTMLAtoms::target, aTarget);
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}
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}
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void
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Area::GetAltText(nsAString& aAltText) const
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{
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aAltText.Truncate();
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if (mArea) {
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mArea->GetAttr(kNameSpaceID_None, nsHTMLAtoms::alt, aAltText);
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}
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}
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void
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Area::GetArea(nsIContent** aArea) const
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{
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*aArea = mArea;
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NS_IF_ADDREF(*aArea);
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}
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#ifdef DEBUG
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void
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Area::SizeOf(nsISizeOfHandler* aHandler, PRUint32* aResult) const
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{
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if (aResult) {
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PRUint32 sum = sizeof(*this);
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sum += mNumCoords * sizeof(nscoord);
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*aResult = sum;
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}
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}
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#endif
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#include <stdlib.h>
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inline PRBool
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is_space(char c)
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{
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return (c == ' ' ||
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c == '\f' ||
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c == '\n' ||
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c == '\r' ||
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c == '\t' ||
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c == '\v');
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}
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// XXX straight copy from laymap.c
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static nscoord* lo_parse_coord_list(char *str, PRInt32* value_cnt)
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{
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char *tptr;
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char *n_str;
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PRInt32 i, cnt;
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PRInt32 *value_list;
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/*
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* Nothing in an empty list
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*/
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*value_cnt = 0;
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if (!str || *str == '\0')
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{
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return nsnull;
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}
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/*
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* Skip beginning whitespace, all whitespace is empty list.
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*/
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n_str = str;
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while (is_space(*n_str))
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{
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n_str++;
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}
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if (*n_str == '\0')
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{
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return nsnull;
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}
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/*
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* Make a pass where any two numbers separated by just whitespace
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* are given a comma separator. Count entries while passing.
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*/
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cnt = 0;
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while (*n_str != '\0')
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{
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PRBool has_comma;
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/*
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* Skip to a separator
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*/
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tptr = n_str;
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while (!is_space(*tptr) && *tptr != ',' && *tptr != '\0')
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{
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tptr++;
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}
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n_str = tptr;
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/*
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* If no more entries, break out here
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*/
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if (*n_str == '\0')
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{
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break;
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}
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/*
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* Skip to the end of the separator, noting if we have a
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* comma.
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*/
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has_comma = PR_FALSE;
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while (is_space(*tptr) || *tptr == ',')
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{
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if (*tptr == ',')
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{
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if (has_comma == PR_FALSE)
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{
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has_comma = PR_TRUE;
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}
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else
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{
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break;
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}
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}
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tptr++;
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}
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/*
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* If this was trailing whitespace we skipped, we are done.
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*/
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if ((*tptr == '\0')&&(has_comma == PR_FALSE))
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{
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break;
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}
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/*
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* Else if the separator is all whitespace, and this is not the
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* end of the string, add a comma to the separator.
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*/
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else if (has_comma == PR_FALSE)
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{
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*n_str = ',';
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}
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/*
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* count the entry skipped.
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*/
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cnt++;
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n_str = tptr;
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}
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/*
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* count the last entry in the list.
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*/
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cnt++;
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/*
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* Allocate space for the coordinate array.
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*/
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value_list = new nscoord[cnt];
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if (!value_list)
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{
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return nsnull;
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}
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/*
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* Second pass to copy integer values into list.
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*/
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tptr = str;
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for (i=0; i<cnt; i++)
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{
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char *ptr;
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ptr = strchr(tptr, ',');
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if (ptr)
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{
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*ptr = '\0';
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}
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/*
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* Strip whitespace in front of number because I don't
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* trust atoi to do it on all platforms.
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*/
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while (is_space(*tptr))
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{
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tptr++;
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}
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if (*tptr == '\0')
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{
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value_list[i] = 0;
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}
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else
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{
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value_list[i] = (nscoord) ::atoi(tptr);
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}
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if (ptr)
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{
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*ptr = ',';
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tptr = ptr + 1;
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}
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}
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*value_cnt = cnt;
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return value_list;
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}
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void Area::ParseCoords(const nsAString& aSpec)
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{
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char* cp = ToNewCString(aSpec);
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if (cp) {
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mCoords = lo_parse_coord_list(cp, &mNumCoords);
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nsCRT::free(cp);
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}
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}
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void Area::HasFocus(PRBool aHasFocus)
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{
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mHasFocus = aHasFocus;
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}
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//----------------------------------------------------------------------
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class DefaultArea : public Area {
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public:
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DefaultArea(nsIContent* aArea, PRBool aHasURL);
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~DefaultArea();
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virtual PRBool IsInside(nscoord x, nscoord y) const;
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virtual void Draw(nsIPresContext* aCX,
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nsIRenderingContext& aRC);
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virtual void GetRect(nsIPresContext* aCX, nsRect& aRect);
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};
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DefaultArea::DefaultArea(nsIContent* aArea, PRBool aHasURL)
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: Area(aArea, aHasURL)
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{
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}
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DefaultArea::~DefaultArea()
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{
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}
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PRBool DefaultArea::IsInside(nscoord x, nscoord y) const
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{
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return PR_TRUE;
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}
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void DefaultArea::Draw(nsIPresContext* aCX, nsIRenderingContext& aRC)
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{
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}
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void DefaultArea::GetRect(nsIPresContext* aCX, nsRect& aRect)
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{
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}
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//----------------------------------------------------------------------
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class RectArea : public Area {
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public:
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RectArea(nsIContent* aArea, PRBool aHasURL);
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~RectArea();
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virtual void ParseCoords(const nsAString& aSpec);
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virtual PRBool IsInside(nscoord x, nscoord y) const;
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virtual void Draw(nsIPresContext* aCX,
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nsIRenderingContext& aRC);
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virtual void GetRect(nsIPresContext* aCX, nsRect& aRect);
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};
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RectArea::RectArea(nsIContent* aArea, PRBool aHasURL)
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: Area(aArea, aHasURL)
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{
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}
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RectArea::~RectArea()
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{
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}
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void RectArea::ParseCoords(const nsAString& aSpec)
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{
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Area::ParseCoords(aSpec);
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PRBool saneRect = PR_TRUE;
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PRInt32 flag = nsIScriptError::warningFlag;
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if (mNumCoords >= 4) {
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if (mCoords[0] > mCoords[2]) {
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// x-coords in reversed order
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nscoord x = mCoords[2];
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mCoords[2] = mCoords[0];
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mCoords[0] = x;
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saneRect = PR_FALSE;
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}
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if (mCoords[1] > mCoords[3]) {
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// y-coords in reversed order
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nscoord y = mCoords[3];
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mCoords[3] = mCoords[1];
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mCoords[1] = y;
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saneRect = PR_FALSE;
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}
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if (mNumCoords > 4) {
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// Someone missed the concept of a rect here
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saneRect = PR_FALSE;
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}
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} else {
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saneRect = PR_FALSE;
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flag = nsIScriptError::errorFlag;
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}
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if (!saneRect) {
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// Report the error to the console.
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nsresult rv;
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nsCOMPtr<nsIConsoleService> consoleService =
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do_GetService(NS_CONSOLESERVICE_CONTRACTID, &rv);
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if (NS_FAILED(rv))
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return;
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nsCOMPtr<nsIScriptError> errorObject =
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do_CreateInstance(NS_SCRIPTERROR_CONTRACTID, &rv);
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if (NS_FAILED(rv))
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return;
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nsCOMPtr<nsIStringBundleService> stringBundleService =
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do_GetService(kCStringBundleServiceCID, &rv);
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if (NS_FAILED(rv))
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return;
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nsCOMPtr<nsIStringBundle> bundle;
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rv = stringBundleService->CreateBundle(
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"chrome://global/locale/layout_errors.properties",
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getter_AddRefs(bundle));
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if (NS_FAILED(rv))
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return;
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nsXPIDLString errorText;
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rv =
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bundle->FormatStringFromName(NS_LITERAL_STRING("ImageMapRectBoundsError").get(),
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nsnull, 0,
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getter_Copies(errorText));
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if (NS_FAILED(rv))
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return;
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nsCOMPtr<nsINodeInfo> nodeInfo;
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mArea->GetNodeInfo(*getter_AddRefs(nodeInfo));
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NS_ASSERTION(nodeInfo, "Element with no nodeinfo");
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nsCOMPtr<nsIDocument> doc;
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nodeInfo->GetDocument(*getter_AddRefs(doc));
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nsCAutoString urlSpec;
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if (doc) {
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nsCOMPtr<nsIURI> uri;
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doc->GetDocumentURL(getter_AddRefs(uri));
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if (uri) {
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uri->GetSpec(urlSpec);
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}
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}
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rv = errorObject->Init(errorText.get(),
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NS_ConvertUTF8toUCS2(urlSpec).get(), /* file name */
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|
PromiseFlatString(aSpec).get(), /* source line */
|
|
0, /* line number */
|
|
0, /* column number */
|
|
flag,
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"ImageMap");
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|
if (NS_FAILED(rv))
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return;
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consoleService->LogMessage(errorObject);
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}
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}
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PRBool RectArea::IsInside(nscoord x, nscoord y) const
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{
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if (mNumCoords >= 4) { // Note: > is for nav compatabilty
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nscoord x1 = mCoords[0];
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|
nscoord y1 = mCoords[1];
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nscoord x2 = mCoords[2];
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nscoord y2 = mCoords[3];
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NS_ASSERTION(x1 <= x2 && y1 <= y2,
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|
"Someone screwed up RectArea::ParseCoords");
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|
if ((x >= x1) && (x <= x2) && (y >= y1) && (y <= y2)) {
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|
return PR_TRUE;
|
|
}
|
|
}
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|
return PR_FALSE;
|
|
}
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|
|
void RectArea::Draw(nsIPresContext* aCX, nsIRenderingContext& aRC)
|
|
{
|
|
if (mHasFocus) {
|
|
if (mNumCoords >= 4) {
|
|
float p2t;
|
|
aCX->GetPixelsToTwips(&p2t);
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|
nscoord x1 = NSIntPixelsToTwips(mCoords[0], p2t);
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|
nscoord y1 = NSIntPixelsToTwips(mCoords[1], p2t);
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nscoord x2 = NSIntPixelsToTwips(mCoords[2], p2t);
|
|
nscoord y2 = NSIntPixelsToTwips(mCoords[3], p2t);
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NS_ASSERTION(x1 <= x2 && y1 <= y2,
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|
"Someone screwed up RectArea::ParseCoords");
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aRC.DrawLine(x1, y1, x1, y2);
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|
aRC.DrawLine(x1, y2, x2, y2);
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|
aRC.DrawLine(x1, y1, x2, y1);
|
|
aRC.DrawLine(x2, y1, x2, y2);
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|
}
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|
}
|
|
}
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|
|
void RectArea::GetRect(nsIPresContext* aCX, nsRect& aRect)
|
|
{
|
|
if (mNumCoords >= 4) {
|
|
float p2t;
|
|
aCX->GetPixelsToTwips(&p2t);
|
|
nscoord x1 = NSIntPixelsToTwips(mCoords[0], p2t);
|
|
nscoord y1 = NSIntPixelsToTwips(mCoords[1], p2t);
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|
nscoord x2 = NSIntPixelsToTwips(mCoords[2], p2t);
|
|
nscoord y2 = NSIntPixelsToTwips(mCoords[3], p2t);
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|
NS_ASSERTION(x1 <= x2 && y1 <= y2,
|
|
"Someone screwed up RectArea::ParseCoords");
|
|
|
|
aRect.SetRect(x1, y1, x2, y2);
|
|
}
|
|
}
|
|
|
|
//----------------------------------------------------------------------
|
|
|
|
class PolyArea : public Area {
|
|
public:
|
|
PolyArea(nsIContent* aArea, PRBool aHasURL);
|
|
~PolyArea();
|
|
|
|
virtual PRBool IsInside(nscoord x, nscoord y) const;
|
|
virtual void Draw(nsIPresContext* aCX,
|
|
nsIRenderingContext& aRC);
|
|
virtual void GetRect(nsIPresContext* aCX, nsRect& aRect);
|
|
};
|
|
|
|
PolyArea::PolyArea(nsIContent* aArea, PRBool aHasURL)
|
|
: Area(aArea, aHasURL)
|
|
{
|
|
}
|
|
|
|
PolyArea::~PolyArea()
|
|
{
|
|
}
|
|
|
|
PRBool PolyArea::IsInside(nscoord x, nscoord y) const
|
|
{
|
|
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 (mHasFocus) {
|
|
if (mNumCoords >= 6) {
|
|
float p2t;
|
|
aCX->GetPixelsToTwips(&p2t);
|
|
nscoord x0 = NSIntPixelsToTwips(mCoords[0], p2t);
|
|
nscoord y0 = NSIntPixelsToTwips(mCoords[1], p2t);
|
|
nscoord x1, y1;
|
|
for (PRInt32 i = 2; i < mNumCoords; i += 2) {
|
|
x1 = NSIntPixelsToTwips(mCoords[i], p2t);
|
|
y1 = NSIntPixelsToTwips(mCoords[i+1], p2t);
|
|
aRC.DrawLine(x0, y0, x1, y1);
|
|
x0 = x1;
|
|
y0 = y1;
|
|
}
|
|
x1 = NSIntPixelsToTwips(mCoords[0], p2t);
|
|
y1 = NSIntPixelsToTwips(mCoords[1], p2t);
|
|
aRC.DrawLine(x0, y0, x1, y1);
|
|
}
|
|
}
|
|
}
|
|
|
|
void PolyArea::GetRect(nsIPresContext* aCX, nsRect& aRect)
|
|
{
|
|
if (mNumCoords >= 6) {
|
|
float p2t;
|
|
aCX->GetPixelsToTwips(&p2t);
|
|
nscoord x1, x2, y1, y2, xtmp, ytmp;
|
|
x1 = x2 = NSIntPixelsToTwips(mCoords[0], p2t);
|
|
y1 = y2 = NSIntPixelsToTwips(mCoords[1], p2t);
|
|
for (PRInt32 i = 2; i < mNumCoords; i += 2) {
|
|
xtmp = NSIntPixelsToTwips(mCoords[i], p2t);
|
|
ytmp = NSIntPixelsToTwips(mCoords[i+1], p2t);
|
|
x1 = x1 < xtmp ? x1 : xtmp;
|
|
y1 = y1 < ytmp ? y1 : ytmp;
|
|
x2 = x2 > xtmp ? x2 : xtmp;
|
|
y2 = y2 > ytmp ? y2 : ytmp;
|
|
}
|
|
|
|
aRect.SetRect(x1, y1, x2, y2);
|
|
}
|
|
}
|
|
|
|
//----------------------------------------------------------------------
|
|
|
|
class CircleArea : public Area {
|
|
public:
|
|
CircleArea(nsIContent* aArea, PRBool aHasURL);
|
|
~CircleArea();
|
|
|
|
virtual PRBool IsInside(nscoord x, nscoord y) const;
|
|
virtual void Draw(nsIPresContext* aCX,
|
|
nsIRenderingContext& aRC);
|
|
virtual void GetRect(nsIPresContext* aCX, nsRect& aRect);
|
|
};
|
|
|
|
CircleArea::CircleArea(nsIContent* aArea, PRBool aHasURL)
|
|
: Area(aArea, aHasURL)
|
|
{
|
|
}
|
|
|
|
CircleArea::~CircleArea()
|
|
{
|
|
}
|
|
|
|
PRBool CircleArea::IsInside(nscoord x, nscoord y) const
|
|
{
|
|
// 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 (mHasFocus) {
|
|
if (mNumCoords >= 3) {
|
|
float p2t;
|
|
aCX->GetPixelsToTwips(&p2t);
|
|
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;
|
|
nscoord y = y1 - radius;
|
|
nscoord w = 2 * radius;
|
|
aRC.DrawEllipse(x, y, w, w);
|
|
}
|
|
}
|
|
}
|
|
|
|
void CircleArea::GetRect(nsIPresContext* aCX, nsRect& aRect)
|
|
{
|
|
if (mNumCoords >= 3) {
|
|
float p2t;
|
|
aCX->GetPixelsToTwips(&p2t);
|
|
nscoord x1 = NSIntPixelsToTwips(mCoords[0], p2t);
|
|
nscoord y1 = NSIntPixelsToTwips(mCoords[1], p2t);
|
|
nscoord radius = NSIntPixelsToTwips(mCoords[2], p2t);
|
|
if (radius < 0) {
|
|
return;
|
|
}
|
|
|
|
aRect.SetRect(x1 - radius, y1 - radius, x1 + radius, y1 + radius);
|
|
}
|
|
}
|
|
|
|
//----------------------------------------------------------------------
|
|
|
|
|
|
nsImageMap::nsImageMap()
|
|
{
|
|
NS_INIT_ISUPPORTS();
|
|
mDocument = nsnull;
|
|
mContainsBlockContents = PR_FALSE;
|
|
}
|
|
|
|
nsImageMap::~nsImageMap()
|
|
{
|
|
//Remove all our focus listeners
|
|
PRInt32 i, n = mAreas.Count();
|
|
for (i = 0; i < n; i++) {
|
|
Area* area = (Area*) mAreas.ElementAt(i);
|
|
nsCOMPtr<nsIContent> areaContent;
|
|
area->GetArea(getter_AddRefs(areaContent));
|
|
if (areaContent) {
|
|
nsCOMPtr<nsIDOMEventReceiver> rec(do_QueryInterface(areaContent));
|
|
if (rec) {
|
|
rec->RemoveEventListenerByIID(this, NS_GET_IID(nsIDOMFocusListener));
|
|
}
|
|
}
|
|
}
|
|
|
|
FreeAreas();
|
|
if (nsnull != mDocument) {
|
|
mDocument->RemoveObserver(NS_STATIC_CAST(nsIDocumentObserver*, this));
|
|
}
|
|
}
|
|
|
|
NS_IMPL_ISUPPORTS4(nsImageMap,
|
|
nsIDocumentObserver,
|
|
nsIDOMFocusListener,
|
|
nsIDOMEventListener,
|
|
nsIImageMap);
|
|
|
|
NS_IMETHODIMP
|
|
nsImageMap::GetBoundsForAreaContent(nsIContent *aContent,
|
|
nsIPresContext* aPresContext,
|
|
nsRect& aBounds)
|
|
{
|
|
// Find the Area struct associated with this content node, and return bounds
|
|
PRInt32 i, n = mAreas.Count();
|
|
for (i = 0; i < n; i++) {
|
|
Area* area = (Area*) mAreas.ElementAt(i);
|
|
if (area->mArea == aContent) {
|
|
area->GetRect(aPresContext, aBounds);
|
|
return NS_OK;
|
|
}
|
|
}
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
void
|
|
nsImageMap::FreeAreas()
|
|
{
|
|
nsCOMPtr<nsIFrameManager> frameManager;
|
|
mPresShell->GetFrameManager(getter_AddRefs(frameManager));
|
|
|
|
PRInt32 i, n = mAreas.Count();
|
|
for (i = 0; i < n; i++) {
|
|
Area* area = (Area*) mAreas.ElementAt(i);
|
|
frameManager->SetPrimaryFrameFor(area->mArea, nsnull);
|
|
delete area;
|
|
}
|
|
mAreas.Clear();
|
|
}
|
|
|
|
nsresult
|
|
nsImageMap::Init(nsIPresShell* aPresShell, nsIFrame* aImageFrame, nsIDOMHTMLMapElement* aMap)
|
|
{
|
|
NS_PRECONDITION(nsnull != aMap, "null ptr");
|
|
if (nsnull == aMap) {
|
|
return NS_ERROR_NULL_POINTER;
|
|
}
|
|
mPresShell = aPresShell;
|
|
mImageFrame = aImageFrame;
|
|
|
|
nsresult rv;
|
|
mMap = do_QueryInterface(aMap, &rv);
|
|
NS_ASSERTION(mMap, "aMap is not an nsIHTMLContent!");
|
|
rv = mMap->GetDocument(mDocument);
|
|
if (NS_SUCCEEDED(rv) && (nsnull != mDocument)) {
|
|
mDocument->AddObserver(NS_STATIC_CAST(nsIDocumentObserver*, this));
|
|
// mDocument is a weak reference, so release the reference we got
|
|
nsIDocument *temp = mDocument;
|
|
NS_RELEASE(temp);
|
|
}
|
|
|
|
// "Compile" the areas in the map into faster access versions
|
|
rv = UpdateAreas();
|
|
return rv;
|
|
}
|
|
|
|
|
|
nsresult
|
|
nsImageMap::UpdateAreasForBlock(nsIContent* aParent, PRBool* aFoundAnchor)
|
|
{
|
|
nsresult rv = NS_OK;
|
|
PRInt32 i, n;
|
|
aParent->ChildCount(n);
|
|
for (i = 0; (i < n) && NS_SUCCEEDED(rv); i++) {
|
|
nsCOMPtr<nsIContent> child;
|
|
rv = aParent->ChildAt(i, *getter_AddRefs(child));
|
|
if (NS_SUCCEEDED(rv)) {
|
|
nsCOMPtr<nsIDOMHTMLAnchorElement> area = do_QueryInterface(child, &rv);
|
|
if (NS_SUCCEEDED(rv)) {
|
|
*aFoundAnchor = PR_TRUE;
|
|
rv = AddArea(child);
|
|
}
|
|
else {
|
|
rv = UpdateAreasForBlock(child, aFoundAnchor);
|
|
}
|
|
}
|
|
}
|
|
|
|
return rv;
|
|
}
|
|
|
|
nsresult
|
|
nsImageMap::UpdateAreas()
|
|
{
|
|
// Get rid of old area data
|
|
FreeAreas();
|
|
|
|
PRInt32 i, n;
|
|
PRBool containsBlock = PR_FALSE, containsArea = PR_FALSE;
|
|
|
|
mMap->ChildCount(n);
|
|
for (i = 0; i < n; i++) {
|
|
nsCOMPtr<nsIContent> child;
|
|
mMap->ChildAt(i, *getter_AddRefs(child));
|
|
|
|
// Only look at elements and not text, comments, etc.
|
|
nsCOMPtr<nsIDOMHTMLElement> element = do_QueryInterface(child);
|
|
if (! element)
|
|
continue;
|
|
|
|
// First check if this map element contains an AREA element.
|
|
// If so, we only look for AREA elements
|
|
if (!containsBlock) {
|
|
nsCOMPtr<nsIDOMHTMLAreaElement> area = do_QueryInterface(child);
|
|
if (area) {
|
|
containsArea = PR_TRUE;
|
|
AddArea(child);
|
|
}
|
|
}
|
|
|
|
// If we haven't determined that the map element contains an
|
|
// AREA element yet, the look for a block element with children
|
|
// that are anchors.
|
|
if (!containsArea) {
|
|
UpdateAreasForBlock(child, &containsBlock);
|
|
|
|
if (containsBlock)
|
|
mContainsBlockContents = PR_TRUE;
|
|
}
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult
|
|
nsImageMap::AddArea(nsIContent* aArea)
|
|
{
|
|
nsAutoString shape, coords, baseURL, noHref;
|
|
aArea->GetAttr(kNameSpaceID_None, nsHTMLAtoms::shape, shape);
|
|
aArea->GetAttr(kNameSpaceID_None, nsHTMLAtoms::coords, coords);
|
|
PRBool hasURL = (PRBool)(NS_CONTENT_ATTR_HAS_VALUE != aArea->GetAttr(kNameSpaceID_None, nsHTMLAtoms::nohref, noHref));
|
|
|
|
//Add focus listener to track area focus changes
|
|
nsCOMPtr<nsIDOMEventReceiver> rec(do_QueryInterface(aArea));
|
|
if (rec) {
|
|
rec->AddEventListenerByIID(this, NS_GET_IID(nsIDOMFocusListener));
|
|
}
|
|
|
|
nsCOMPtr<nsIFrameManager> frameManager;
|
|
mPresShell->GetFrameManager(getter_AddRefs(frameManager));
|
|
frameManager->SetPrimaryFrameFor(aArea, mImageFrame);
|
|
|
|
Area* area;
|
|
if ((0 == shape.Length()) ||
|
|
shape.EqualsIgnoreCase("rect") ||
|
|
shape.EqualsIgnoreCase("rectangle")) {
|
|
area = new RectArea(aArea, hasURL);
|
|
}
|
|
else if (shape.EqualsIgnoreCase("poly") ||
|
|
shape.EqualsIgnoreCase("polygon")) {
|
|
area = new PolyArea(aArea, hasURL);
|
|
}
|
|
else if (shape.EqualsIgnoreCase("circle") ||
|
|
shape.EqualsIgnoreCase("circ")) {
|
|
area = new CircleArea(aArea, hasURL);
|
|
}
|
|
else if (shape.EqualsIgnoreCase("default")) {
|
|
area = new DefaultArea(aArea, hasURL);
|
|
}
|
|
else {
|
|
// Unknown area type; bail
|
|
return NS_OK;
|
|
}
|
|
if (!area)
|
|
return NS_ERROR_OUT_OF_MEMORY;
|
|
area->ParseCoords(coords);
|
|
mAreas.AppendElement(area);
|
|
return NS_OK;
|
|
}
|
|
|
|
PRBool
|
|
nsImageMap::IsInside(nscoord aX, nscoord aY,
|
|
nsIContent** aContent,
|
|
nsAString& aAbsURL,
|
|
nsAString& aTarget,
|
|
nsAString& aAltText) const
|
|
{
|
|
NS_ASSERTION(mMap, "Not initialized");
|
|
PRInt32 i, n = mAreas.Count();
|
|
for (i = 0; i < n; i++) {
|
|
Area* area = (Area*) mAreas.ElementAt(i);
|
|
if (area->IsInside(aX, aY)) {
|
|
if (area->GetHasURL()) {
|
|
// Set the image loader's source URL and base URL
|
|
nsCOMPtr<nsIURI> baseUri;
|
|
|
|
mMap->GetBaseURL(*getter_AddRefs(baseUri));
|
|
|
|
if (!baseUri) {
|
|
return PR_FALSE;
|
|
}
|
|
|
|
nsAutoString href;
|
|
area->GetHREF(href);
|
|
NS_MakeAbsoluteURI(aAbsURL, href, baseUri);
|
|
}
|
|
|
|
area->GetTarget(aTarget);
|
|
if (aTarget.IsEmpty())
|
|
mMap->GetBaseTarget(aTarget);
|
|
|
|
area->GetAltText(aAltText);
|
|
|
|
area->GetArea(aContent);
|
|
|
|
return PR_TRUE;
|
|
}
|
|
}
|
|
|
|
return PR_FALSE;
|
|
}
|
|
|
|
PRBool
|
|
nsImageMap::IsInside(nscoord aX, nscoord aY) const
|
|
{
|
|
PRInt32 i, n = mAreas.Count();
|
|
for (i = 0; i < n; i++) {
|
|
Area* area = (Area*) mAreas.ElementAt(i);
|
|
if (area->IsInside(aX, aY)) {
|
|
nsAutoString href;
|
|
area->GetHREF(href);
|
|
if (href.Length() > 0) {
|
|
return PR_TRUE;
|
|
}
|
|
else {
|
|
//We need to return here so we don't hit an overlapping map area
|
|
return PR_FALSE;
|
|
}
|
|
}
|
|
}
|
|
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);
|
|
}
|
|
}
|
|
|
|
NS_IMPL_NSIDOCUMENTOBSERVER_CORE_STUB(nsImageMap)
|
|
NS_IMPL_NSIDOCUMENTOBSERVER_LOAD_STUB(nsImageMap)
|
|
NS_IMPL_NSIDOCUMENTOBSERVER_REFLOW_STUB(nsImageMap)
|
|
NS_IMPL_NSIDOCUMENTOBSERVER_STATE_STUB(nsImageMap)
|
|
NS_IMPL_NSIDOCUMENTOBSERVER_STYLE_STUB(nsImageMap)
|
|
|
|
|
|
PRBool
|
|
nsImageMap::IsAncestorOf(nsIContent* aContent,
|
|
nsIContent* aAncestorContent)
|
|
{
|
|
nsCOMPtr<nsIContent> parent;
|
|
aContent->GetParent(*getter_AddRefs(parent));
|
|
if (parent) {
|
|
return parent == aAncestorContent ||
|
|
IsAncestorOf(parent, aAncestorContent);
|
|
}
|
|
|
|
return PR_FALSE;
|
|
}
|
|
|
|
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.
|
|
nsCOMPtr<nsIContent> parent;
|
|
nsresult rv = aContent->GetParent(*getter_AddRefs(parent));
|
|
if (NS_SUCCEEDED(rv) && (nsnull != parent)) {
|
|
if ((parent == mMap) ||
|
|
(mContainsBlockContents && IsAncestorOf(parent, mMap))) {
|
|
UpdateAreas();
|
|
}
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsImageMap::AttributeChanged(nsIDocument *aDocument,
|
|
nsIContent* aContent,
|
|
PRInt32 aNameSpaceID,
|
|
nsIAtom* aAttribute,
|
|
PRInt32 aModType,
|
|
nsChangeHint aHint)
|
|
{
|
|
// If the parent of the changing content node is our map then update
|
|
// the map.
|
|
nsCOMPtr<nsIContent> parent;
|
|
aContent->GetParent(*getter_AddRefs(parent));
|
|
if ((parent == mMap) ||
|
|
(mContainsBlockContents && IsAncestorOf(parent, mMap))) {
|
|
UpdateAreas();
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsImageMap::ContentAppended(nsIDocument *aDocument,
|
|
nsIContent* aContainer,
|
|
PRInt32 aNewIndexInContainer)
|
|
{
|
|
if ((mMap == aContainer) ||
|
|
(mContainsBlockContents && IsAncestorOf(aContainer, mMap))) {
|
|
UpdateAreas();
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsImageMap::ContentInserted(nsIDocument *aDocument,
|
|
nsIContent* aContainer,
|
|
nsIContent* aChild,
|
|
PRInt32 aIndexInContainer)
|
|
{
|
|
if ((mMap == aContainer) ||
|
|
(mContainsBlockContents && IsAncestorOf(aContainer, mMap))) {
|
|
UpdateAreas();
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsImageMap::ContentReplaced(nsIDocument *aDocument,
|
|
nsIContent* aContainer,
|
|
nsIContent* aOldChild,
|
|
nsIContent* aNewChild,
|
|
PRInt32 aIndexInContainer)
|
|
{
|
|
if ((mMap == aContainer) ||
|
|
(mContainsBlockContents && IsAncestorOf(aContainer, mMap))) {
|
|
UpdateAreas();
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsImageMap::ContentRemoved(nsIDocument *aDocument,
|
|
nsIContent* aContainer,
|
|
nsIContent* aChild,
|
|
PRInt32 aIndexInContainer)
|
|
{
|
|
if ((mMap == aContainer) ||
|
|
(mContainsBlockContents && IsAncestorOf(aContainer, mMap))) {
|
|
UpdateAreas();
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult
|
|
nsImageMap::Focus(nsIDOMEvent* aEvent)
|
|
{
|
|
return ChangeFocus(aEvent, PR_TRUE);
|
|
}
|
|
|
|
nsresult
|
|
nsImageMap::Blur(nsIDOMEvent* aEvent)
|
|
{
|
|
return ChangeFocus(aEvent, PR_FALSE);
|
|
}
|
|
|
|
nsresult
|
|
nsImageMap::ChangeFocus(nsIDOMEvent* aEvent, PRBool aFocus) {
|
|
//Set which one of our areas changed focus
|
|
nsCOMPtr<nsIDOMEventTarget> target;
|
|
if (NS_SUCCEEDED(aEvent->GetTarget(getter_AddRefs(target))) && target) {
|
|
nsCOMPtr<nsIContent> targetContent(do_QueryInterface(target));
|
|
if (targetContent) {
|
|
PRInt32 i, n = mAreas.Count();
|
|
for (i = 0; i < n; i++) {
|
|
Area* area = (Area*) mAreas.ElementAt(i);
|
|
nsCOMPtr<nsIContent> areaContent;
|
|
area->GetArea(getter_AddRefs(areaContent));
|
|
if (areaContent) {
|
|
if (areaContent.get() == targetContent.get()) {
|
|
//Set or Remove internal focus
|
|
area->HasFocus(aFocus);
|
|
//Now invalidate the rect
|
|
nsCOMPtr<nsIDocument> doc;
|
|
//This check is necessary to see if we're still attached to the doc
|
|
if (NS_SUCCEEDED(targetContent->GetDocument(*getter_AddRefs(doc))) && doc) {
|
|
nsCOMPtr<nsIPresShell> presShell;
|
|
doc->GetShellAt(0, getter_AddRefs(presShell));
|
|
if (presShell) {
|
|
nsIFrame* imgFrame;
|
|
if (NS_SUCCEEDED(presShell->GetPrimaryFrameFor(targetContent, &imgFrame)) && imgFrame) {
|
|
nsCOMPtr<nsIPresContext> presContext;
|
|
if (NS_SUCCEEDED(presShell->GetPresContext(getter_AddRefs(presContext))) && presContext) {
|
|
nsRect dmgRect;
|
|
area->GetRect(presContext, dmgRect);
|
|
Invalidate(presContext, imgFrame, dmgRect);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult
|
|
nsImageMap::HandleEvent(nsIDOMEvent* aEvent)
|
|
{
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult
|
|
nsImageMap::Invalidate(nsIPresContext* aPresContext, nsIFrame* aFrame, nsRect& aRect)
|
|
{
|
|
nsCOMPtr<nsIViewManager> viewManager;
|
|
PRUint32 flags = NS_VMREFRESH_IMMEDIATE;
|
|
nsIView* view;
|
|
nsRect damageRect(aRect);
|
|
|
|
aFrame->GetView(aPresContext, &view);
|
|
if (view) {
|
|
view->GetViewManager(*getter_AddRefs(viewManager));
|
|
viewManager->UpdateView(view, damageRect, flags);
|
|
}
|
|
else {
|
|
nsPoint offset;
|
|
|
|
aFrame->GetOffsetFromView(aPresContext, offset, &view);
|
|
NS_ASSERTION(nsnull != view, "no view");
|
|
damageRect += offset;
|
|
view->GetViewManager(*getter_AddRefs(viewManager));
|
|
viewManager->UpdateView(view, damageRect, flags);
|
|
}
|
|
return NS_OK;
|
|
|
|
}
|
|
|
|
void
|
|
nsImageMap::Destroy(void)
|
|
{
|
|
//Remove all our focus listeners
|
|
PRInt32 i, n = mAreas.Count();
|
|
for (i = 0; i < n; i++) {
|
|
Area* area = (Area*) mAreas.ElementAt(i);
|
|
nsCOMPtr<nsIContent> areaContent;
|
|
area->GetArea(getter_AddRefs(areaContent));
|
|
if (areaContent) {
|
|
nsCOMPtr<nsIDOMEventReceiver> rec(do_QueryInterface(areaContent));
|
|
if (rec) {
|
|
rec->RemoveEventListenerByIID(this, NS_GET_IID(nsIDOMFocusListener));
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
#ifdef DEBUG
|
|
void
|
|
nsImageMap::SizeOf(nsISizeOfHandler* aHandler, PRUint32* aResult) const
|
|
{
|
|
if (aResult) {
|
|
PRUint32 sum = sizeof(*this);
|
|
PRInt32 i, n = mAreas.Count();
|
|
for (i = 0; i < n; i++) {
|
|
Area* area = (Area*) mAreas.ElementAt(i);
|
|
PRUint32 areaSize;
|
|
area->SizeOf(aHandler, &areaSize);
|
|
sum += areaSize;
|
|
}
|
|
*aResult = sum;
|
|
}
|
|
}
|
|
#endif
|