gecko-dev/dom/base/nsHistory.cpp
Benjamin Smedberg 555ae1b325 Bug 481102 - Reorganize dom/public, dom/public/base, and dom/src/base to dom/base, r+sr=jst
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rename : dom/src/base/Makefile.in => dom/base/Makefile.in
rename : dom/src/base/crashtests/244933-1.html => dom/base/crashtests/244933-1.html
rename : dom/src/base/crashtests/275912-1.html => dom/base/crashtests/275912-1.html
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rename : dom/src/base/crashtests/327695-1.html => dom/base/crashtests/327695-1.html
rename : dom/src/base/crashtests/329481-1.xhtml => dom/base/crashtests/329481-1.xhtml
rename : dom/src/base/crashtests/338674-1.xhtml => dom/base/crashtests/338674-1.xhtml
rename : dom/src/base/crashtests/346381-1.html => dom/base/crashtests/346381-1.html
rename : dom/src/base/crashtests/359432-1.xhtml => dom/base/crashtests/359432-1.xhtml
rename : dom/src/base/crashtests/369413-1.html => dom/base/crashtests/369413-1.html
rename : dom/src/base/crashtests/372554-1.html => dom/base/crashtests/372554-1.html
rename : dom/src/base/crashtests/404869-1.xul => dom/base/crashtests/404869-1.xul
rename : dom/src/base/crashtests/439206-1.html => dom/base/crashtests/439206-1.html
rename : dom/src/base/crashtests/462947.html => dom/base/crashtests/462947.html
rename : dom/src/base/crashtests/473284.xul => dom/base/crashtests/473284.xul
rename : dom/src/base/crashtests/90613-1.html => dom/base/crashtests/90613-1.html
rename : dom/src/base/crashtests/crashtests.list => dom/base/crashtests/crashtests.list
rename : dom/src/base/domerr.msg => dom/base/domerr.msg
rename : dom/src/base/nsBarProps.cpp => dom/base/nsBarProps.cpp
rename : dom/src/base/nsBarProps.h => dom/base/nsBarProps.h
rename : dom/public/nsDOMCID.h => dom/base/nsDOMCID.h
rename : dom/src/base/nsDOMClassInfo.cpp => dom/base/nsDOMClassInfo.cpp
rename : dom/src/base/nsDOMClassInfo.h => dom/base/nsDOMClassInfo.h
rename : dom/public/nsDOMClassInfoID.h => dom/base/nsDOMClassInfoID.h
rename : dom/public/nsDOMError.h => dom/base/nsDOMError.h
rename : dom/src/base/nsDOMException.cpp => dom/base/nsDOMException.cpp
rename : dom/src/base/nsDOMException.h => dom/base/nsDOMException.h
rename : dom/public/nsDOMJSUtils.h => dom/base/nsDOMJSUtils.h
rename : dom/src/base/nsDOMScriptObjectFactory.cpp => dom/base/nsDOMScriptObjectFactory.cpp
rename : dom/src/base/nsDOMScriptObjectFactory.h => dom/base/nsDOMScriptObjectFactory.h
rename : dom/public/nsDOMScriptObjectHolder.h => dom/base/nsDOMScriptObjectHolder.h
rename : dom/public/nsDOMString.h => dom/base/nsDOMString.h
rename : dom/src/base/nsDOMWindowList.cpp => dom/base/nsDOMWindowList.cpp
rename : dom/src/base/nsDOMWindowList.h => dom/base/nsDOMWindowList.h
rename : dom/src/base/nsDOMWindowUtils.cpp => dom/base/nsDOMWindowUtils.cpp
rename : dom/src/base/nsDOMWindowUtils.h => dom/base/nsDOMWindowUtils.h
rename : dom/src/base/nsFocusController.cpp => dom/base/nsFocusController.cpp
rename : dom/src/base/nsFocusController.h => dom/base/nsFocusController.h
rename : dom/src/base/nsGlobalWindow.cpp => dom/base/nsGlobalWindow.cpp
rename : dom/src/base/nsGlobalWindow.h => dom/base/nsGlobalWindow.h
rename : dom/src/base/nsGlobalWindowCommands.cpp => dom/base/nsGlobalWindowCommands.cpp
rename : dom/src/base/nsGlobalWindowCommands.h => dom/base/nsGlobalWindowCommands.h
rename : dom/src/base/nsHistory.cpp => dom/base/nsHistory.cpp
rename : dom/src/base/nsHistory.h => dom/base/nsHistory.h
rename : dom/public/nsIBaseDOMException.h => dom/base/nsIBaseDOMException.h
rename : dom/public/nsIDOMClassInfo.h => dom/base/nsIDOMClassInfo.h
rename : dom/public/nsIDOMScriptObjectFactory.h => dom/base/nsIDOMScriptObjectFactory.h
rename : dom/public/nsIEntropyCollector.idl => dom/base/nsIEntropyCollector.idl
rename : dom/public/base/nsIFocusController.h => dom/base/nsIFocusController.h
rename : dom/public/nsIJSEventListener.h => dom/base/nsIJSEventListener.h
rename : dom/public/nsIJSNativeInitializer.h => dom/base/nsIJSNativeInitializer.h
rename : dom/public/nsIScriptChannel.idl => dom/base/nsIScriptChannel.idl
rename : dom/public/nsIScriptContext.h => dom/base/nsIScriptContext.h
rename : dom/public/nsIScriptExternalNameSet.h => dom/base/nsIScriptExternalNameSet.h
rename : dom/public/nsIScriptGlobalObject.h => dom/base/nsIScriptGlobalObject.h
rename : dom/public/nsIScriptGlobalObjectOwner.h => dom/base/nsIScriptGlobalObjectOwner.h
rename : dom/public/nsIScriptNameSpaceManager.h => dom/base/nsIScriptNameSpaceManager.h
rename : dom/public/nsIScriptObjectOwner.h => dom/base/nsIScriptObjectOwner.h
rename : dom/public/nsIScriptObjectPrincipal.h => dom/base/nsIScriptObjectPrincipal.h
rename : dom/public/nsIScriptRuntime.h => dom/base/nsIScriptRuntime.h
rename : dom/public/nsIScriptTimeoutHandler.h => dom/base/nsIScriptTimeoutHandler.h
rename : dom/src/base/nsJSEnvironment.cpp => dom/base/nsJSEnvironment.cpp
rename : dom/src/base/nsJSEnvironment.h => dom/base/nsJSEnvironment.h
rename : dom/src/base/nsJSTimeoutHandler.cpp => dom/base/nsJSTimeoutHandler.cpp
rename : dom/src/base/nsJSUtils.cpp => dom/base/nsJSUtils.cpp
rename : dom/src/base/nsJSUtils.h => dom/base/nsJSUtils.h
rename : dom/src/base/nsLocation.cpp => dom/base/nsLocation.cpp
rename : dom/src/base/nsMimeTypeArray.cpp => dom/base/nsMimeTypeArray.cpp
rename : dom/src/base/nsMimeTypeArray.h => dom/base/nsMimeTypeArray.h
rename : dom/public/base/nsPIDOMWindow.h => dom/base/nsPIDOMWindow.h
rename : dom/public/base/nsPIWindowRoot.h => dom/base/nsPIWindowRoot.h
rename : dom/src/base/nsPluginArray.cpp => dom/base/nsPluginArray.cpp
rename : dom/src/base/nsPluginArray.h => dom/base/nsPluginArray.h
rename : dom/src/base/nsScreen.cpp => dom/base/nsScreen.cpp
rename : dom/src/base/nsScreen.h => dom/base/nsScreen.h
rename : dom/src/base/nsScriptNameSpaceManager.cpp => dom/base/nsScriptNameSpaceManager.cpp
rename : dom/src/base/nsScriptNameSpaceManager.h => dom/base/nsScriptNameSpaceManager.h
rename : dom/src/base/nsWindowRoot.cpp => dom/base/nsWindowRoot.cpp
rename : dom/src/base/nsWindowRoot.h => dom/base/nsWindowRoot.h
rename : dom/public/nsWrapperCache.h => dom/base/nsWrapperCache.h
2009-03-11 10:10:19 -04:00

335 lines
9.5 KiB
C++

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is mozilla.org code.
*
* The Initial Developer of the Original Code is
* Netscape Communications Corporation.
* Portions created by the Initial Developer are Copyright (C) 1998
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Travis Bogard <travis@netscape.com>
*
* Alternatively, the contents of this file may be used under the terms of
* either of the GNU General Public License Version 2 or later (the "GPL"),
* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#include "nsCOMPtr.h"
#include "nscore.h"
#include "nsHistory.h"
#include "nsIDOMWindowInternal.h"
#include "nsPIDOMWindow.h"
#include "nsIScriptGlobalObject.h"
#include "nsIDOMDocument.h"
#include "nsIDocument.h"
#include "nsIPresShell.h"
#include "nsPresContext.h"
#include "nsIDocShell.h"
#include "nsIDocShellTreeItem.h"
#include "nsIWebNavigation.h"
#include "nsIHistoryEntry.h"
#include "nsIURI.h"
#include "nsIServiceManager.h"
#include "nsIInterfaceRequestorUtils.h"
#include "nsXPIDLString.h"
#include "nsReadableUtils.h"
#include "nsDOMClassInfo.h"
#include "nsContentUtils.h"
//
// History class implementation
//
nsHistory::nsHistory(nsIDocShell* aDocShell) : mDocShell(aDocShell)
{
}
nsHistory::~nsHistory()
{
}
// QueryInterface implementation for nsHistory
NS_INTERFACE_MAP_BEGIN(nsHistory)
NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, nsIDOMHistory)
NS_INTERFACE_MAP_ENTRY(nsIDOMHistory)
NS_DOM_INTERFACE_MAP_ENTRY_CLASSINFO(History)
NS_INTERFACE_MAP_END
NS_IMPL_ADDREF(nsHistory)
NS_IMPL_RELEASE(nsHistory)
void
nsHistory::SetDocShell(nsIDocShell *aDocShell)
{
mDocShell = aDocShell; // Weak Reference
}
NS_IMETHODIMP
nsHistory::GetLength(PRInt32* aLength)
{
nsCOMPtr<nsISHistory> sHistory;
// Get session History from docshell
GetSessionHistoryFromDocShell(mDocShell, getter_AddRefs(sHistory));
NS_ENSURE_TRUE(sHistory, NS_ERROR_FAILURE);
return sHistory->GetCount(aLength);
}
NS_IMETHODIMP
nsHistory::GetCurrent(nsAString& aCurrent)
{
PRInt32 curIndex=0;
nsCAutoString curURL;
nsCOMPtr<nsISHistory> sHistory;
// Get SessionHistory from docshell
GetSessionHistoryFromDocShell(mDocShell, getter_AddRefs(sHistory));
NS_ENSURE_TRUE(sHistory, NS_ERROR_FAILURE);
// Get the current index at session History
sHistory->GetIndex(&curIndex);
nsCOMPtr<nsIHistoryEntry> curEntry;
nsCOMPtr<nsIURI> uri;
// Get the SH entry for the current index
sHistory->GetEntryAtIndex(curIndex, PR_FALSE, getter_AddRefs(curEntry));
NS_ENSURE_TRUE(curEntry, NS_ERROR_FAILURE);
// Get the URI for the current entry
curEntry->GetURI(getter_AddRefs(uri));
NS_ENSURE_TRUE(uri, NS_ERROR_FAILURE);
uri->GetSpec(curURL);
CopyUTF8toUTF16(curURL, aCurrent);
return NS_OK;
}
NS_IMETHODIMP
nsHistory::GetPrevious(nsAString& aPrevious)
{
PRInt32 curIndex;
nsCAutoString prevURL;
nsCOMPtr<nsISHistory> sHistory;
// Get session History from docshell
GetSessionHistoryFromDocShell(mDocShell, getter_AddRefs(sHistory));
NS_ENSURE_TRUE(sHistory, NS_ERROR_FAILURE);
// Get the current index at session History
sHistory->GetIndex(&curIndex);
nsCOMPtr<nsIHistoryEntry> prevEntry;
nsCOMPtr<nsIURI> uri;
// Get the previous SH entry
sHistory->GetEntryAtIndex((curIndex-1), PR_FALSE, getter_AddRefs(prevEntry));
NS_ENSURE_TRUE(prevEntry, NS_ERROR_FAILURE);
// Get the URI for the previous entry
prevEntry->GetURI(getter_AddRefs(uri));
NS_ENSURE_TRUE(uri, NS_ERROR_FAILURE);
uri->GetSpec(prevURL);
CopyUTF8toUTF16(prevURL, aPrevious);
return NS_OK;
}
NS_IMETHODIMP
nsHistory::GetNext(nsAString& aNext)
{
PRInt32 curIndex;
nsCAutoString nextURL;
nsCOMPtr<nsISHistory> sHistory;
// Get session History from docshell
GetSessionHistoryFromDocShell(mDocShell, getter_AddRefs(sHistory));
NS_ENSURE_TRUE(sHistory, NS_ERROR_FAILURE);
// Get the current index at session History
sHistory->GetIndex(&curIndex);
nsCOMPtr<nsIHistoryEntry> nextEntry;
nsCOMPtr<nsIURI> uri;
// Get the next SH entry
sHistory->GetEntryAtIndex((curIndex+1), PR_FALSE, getter_AddRefs(nextEntry));
NS_ENSURE_TRUE(nextEntry, NS_ERROR_FAILURE);
// Get the URI for the next entry
nextEntry->GetURI(getter_AddRefs(uri));
NS_ENSURE_TRUE(uri, NS_ERROR_FAILURE);
uri->GetSpec(nextURL);
CopyUTF8toUTF16(nextURL, aNext);
return NS_OK;
}
NS_IMETHODIMP
nsHistory::Back()
{
nsCOMPtr<nsISHistory> sHistory;
GetSessionHistoryFromDocShell(mDocShell, getter_AddRefs(sHistory));
NS_ENSURE_TRUE(sHistory, NS_ERROR_FAILURE);
//QI SHistory to WebNavigation
nsCOMPtr<nsIWebNavigation> webNav(do_QueryInterface(sHistory));
NS_ENSURE_TRUE(webNav, NS_ERROR_FAILURE);
webNav->GoBack();
return NS_OK;
}
NS_IMETHODIMP
nsHistory::Forward()
{
nsCOMPtr<nsISHistory> sHistory;
GetSessionHistoryFromDocShell(mDocShell, getter_AddRefs(sHistory));
NS_ENSURE_TRUE(sHistory, NS_ERROR_FAILURE);
//QI SHistory to WebNavigation
nsCOMPtr<nsIWebNavigation> webNav(do_QueryInterface(sHistory));
NS_ENSURE_TRUE(webNav, NS_ERROR_FAILURE);
webNav->GoForward();
return NS_OK;
}
NS_IMETHODIMP
nsHistory::Go(PRInt32 aDelta)
{
if (aDelta == 0) {
nsCOMPtr<nsPIDOMWindow> window(do_GetInterface(mDocShell));
if (window && window->IsHandlingResizeEvent()) {
// history.go(0) (aka location.reload()) was called on a window
// that is handling a resize event. Sites do this since Netscape
// 4.x needed it, but we don't, and it's a horrible experience
// for nothing. In stead of reloading the page, just clear
// style data and reflow the page since some sites may use this
// trick to work around gecko reflow bugs, and this should have
// the same effect.
nsCOMPtr<nsIDocument> doc =
do_QueryInterface(window->GetExtantDocument());
nsIPresShell *shell;
nsPresContext *pcx;
if (doc && (shell = doc->GetPrimaryShell()) &&
(pcx = shell->GetPresContext())) {
pcx->RebuildAllStyleData(NS_STYLE_HINT_REFLOW);
}
return NS_OK;
}
}
nsCOMPtr<nsISHistory> session_history;
GetSessionHistoryFromDocShell(mDocShell, getter_AddRefs(session_history));
NS_ENSURE_TRUE(session_history, NS_ERROR_FAILURE);
// QI SHistory to nsIWebNavigation
nsCOMPtr<nsIWebNavigation> webnav(do_QueryInterface(session_history));
NS_ENSURE_TRUE(webnav, NS_ERROR_FAILURE);
PRInt32 curIndex=-1;
PRInt32 len = 0;
nsresult rv = session_history->GetIndex(&curIndex);
rv = session_history->GetCount(&len);
PRInt32 index = curIndex + aDelta;
if (index > -1 && index < len)
webnav->GotoIndex(index);
// We always want to return a NS_OK, since returning errors
// from GotoIndex() can lead to exceptions and a possible leak
// of history length
return NS_OK;
}
NS_IMETHODIMP
nsHistory::Item(PRUint32 aIndex, nsAString& aReturn)
{
aReturn.Truncate();
nsresult rv = NS_OK;
nsCOMPtr<nsISHistory> session_history;
GetSessionHistoryFromDocShell(mDocShell, getter_AddRefs(session_history));
NS_ENSURE_TRUE(session_history, NS_ERROR_FAILURE);
nsCOMPtr<nsIHistoryEntry> sh_entry;
nsCOMPtr<nsIURI> uri;
rv = session_history->GetEntryAtIndex(aIndex, PR_FALSE,
getter_AddRefs(sh_entry));
if (sh_entry) {
rv = sh_entry->GetURI(getter_AddRefs(uri));
}
if (uri) {
nsCAutoString urlCString;
rv = uri->GetSpec(urlCString);
CopyUTF8toUTF16(urlCString, aReturn);
}
return rv;
}
nsresult
nsHistory::GetSessionHistoryFromDocShell(nsIDocShell * aDocShell,
nsISHistory ** aReturn)
{
NS_ENSURE_TRUE(aDocShell, NS_ERROR_FAILURE);
/* The docshell we have may or may not be
* the root docshell. So, get a handle to
* SH from the root docshell
*/
// QI mDocShell to nsIDocShellTreeItem
nsCOMPtr<nsIDocShellTreeItem> dsTreeItem(do_QueryInterface(mDocShell));
NS_ENSURE_TRUE(dsTreeItem, NS_ERROR_FAILURE);
// Get the root DocShell from it
nsCOMPtr<nsIDocShellTreeItem> root;
dsTreeItem->GetSameTypeRootTreeItem(getter_AddRefs(root));
NS_ENSURE_TRUE(root, NS_ERROR_FAILURE);
//QI root to nsIWebNavigation
nsCOMPtr<nsIWebNavigation> webNav(do_QueryInterface(root));
NS_ENSURE_TRUE(webNav, NS_ERROR_FAILURE);
//Get SH from nsIWebNavigation
return webNav->GetSessionHistory(aReturn);
}