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pjs/widget/windows/JumpListBuilder.cpp

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/* -*- 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
* Mozilla Foundation.
* Portions created by the Initial Developer are Copyright (C) 2009
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Jim Mathies <jmathies@mozilla.com>
* Brian R. Bondy <netzen@gmail.com>
*
* Alternatively, the contents of this file may be used under the terms of
* either 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 ***** */
#if MOZ_WINSDK_TARGETVER >= MOZ_NTDDI_WIN7
#include "JumpListBuilder.h"
#include "nsError.h"
#include "nsCOMPtr.h"
#include "nsServiceManagerUtils.h"
#include "nsAutoPtr.h"
#include "nsString.h"
#include "nsArrayUtils.h"
#include "nsIMutableArray.h"
#include "nsWidgetsCID.h"
#include "WinTaskbar.h"
#include "nsDirectoryServiceUtils.h"
#include "nsISimpleEnumerator.h"
#include "mozilla/Preferences.h"
#include "imgIContainer.h"
#include "imgITools.h"
#include "nsStringStream.h"
#include "nsNetUtil.h"
#include "nsThreadUtils.h"
namespace mozilla {
namespace widget {
static NS_DEFINE_CID(kJumpListItemCID, NS_WIN_JUMPLISTITEM_CID);
static NS_DEFINE_CID(kJumpListLinkCID, NS_WIN_JUMPLISTLINK_CID);
static NS_DEFINE_CID(kJumpListShortcutCID, NS_WIN_JUMPLISTSHORTCUT_CID);
// defined in WinTaskbar.cpp
extern const wchar_t *gMozillaJumpListIDGeneric;
bool JumpListBuilder::sBuildingList = false;
const char kPrefTaskbarEnabled[] = "browser.taskbar.lists.enabled";
NS_IMPL_ISUPPORTS2(JumpListBuilder, nsIJumpListBuilder, nsIObserver)
NS_IMPL_ISUPPORTS1(AsyncFaviconDataReady, nsIFaviconDataCallback)
NS_IMPL_THREADSAFE_ISUPPORTS1(AsyncWriteIconToDisk, nsIRunnable)
NS_IMPL_THREADSAFE_ISUPPORTS1(AsyncDeleteIconFromDisk, nsIRunnable)
NS_IMPL_THREADSAFE_ISUPPORTS1(AsyncDeleteAllFaviconsFromDisk, nsIRunnable)
JumpListBuilder::JumpListBuilder() :
mMaxItems(0),
mHasCommit(false)
{
::CoInitialize(NULL);
CoCreateInstance(CLSID_DestinationList, NULL, CLSCTX_INPROC_SERVER,
IID_ICustomDestinationList, getter_AddRefs(mJumpListMgr));
NS_NewThread(getter_AddRefs(mIOThread));
Preferences::AddStrongObserver(this, kPrefTaskbarEnabled);
}
JumpListBuilder::~JumpListBuilder()
{
mIOThread->Shutdown();
Preferences::RemoveObserver(this, kPrefTaskbarEnabled);
mJumpListMgr = nsnull;
::CoUninitialize();
}
/* readonly attribute short available; */
NS_IMETHODIMP JumpListBuilder::GetAvailable(PRInt16 *aAvailable)
{
*aAvailable = false;
if (mJumpListMgr)
*aAvailable = true;
return NS_OK;
}
/* readonly attribute boolean isListCommitted; */
NS_IMETHODIMP JumpListBuilder::GetIsListCommitted(bool *aCommit)
{
*aCommit = mHasCommit;
return NS_OK;
}
/* readonly attribute short maxItems; */
NS_IMETHODIMP JumpListBuilder::GetMaxListItems(PRInt16 *aMaxItems)
{
if (!mJumpListMgr)
return NS_ERROR_NOT_AVAILABLE;
*aMaxItems = 0;
if (sBuildingList) {
*aMaxItems = mMaxItems;
return NS_OK;
}
IObjectArray *objArray;
if (SUCCEEDED(mJumpListMgr->BeginList(&mMaxItems, IID_PPV_ARGS(&objArray)))) {
*aMaxItems = mMaxItems;
if (objArray)
objArray->Release();
mJumpListMgr->AbortList();
}
return NS_OK;
}
/* boolean initListBuild(in nsIMutableArray removedItems); */
NS_IMETHODIMP JumpListBuilder::InitListBuild(nsIMutableArray *removedItems, bool *_retval)
{
NS_ENSURE_ARG_POINTER(removedItems);
*_retval = false;
if (!mJumpListMgr)
return NS_ERROR_NOT_AVAILABLE;
if(sBuildingList)
AbortListBuild();
IObjectArray *objArray;
if (SUCCEEDED(mJumpListMgr->BeginList(&mMaxItems, IID_PPV_ARGS(&objArray)))) {
if (objArray) {
TransferIObjectArrayToIMutableArray(objArray, removedItems);
objArray->Release();
}
RemoveIconCacheForItems(removedItems);
sBuildingList = true;
*_retval = true;
return NS_OK;
}
return NS_OK;
}
// Ensures that we don't have old ICO files that aren't in our jump lists
// anymore left over in the cache.
nsresult JumpListBuilder::RemoveIconCacheForItems(nsIMutableArray *items)
{
NS_ENSURE_ARG_POINTER(items);
nsresult rv;
PRUint32 length;
items->GetLength(&length);
for (PRUint32 i = 0; i < length; ++i) {
//Obtain an IJumpListItem and get the type
nsCOMPtr<nsIJumpListItem> item = do_QueryElementAt(items, i);
if (!item) {
continue;
}
PRInt16 type;
if (NS_FAILED(item->GetType(&type))) {
continue;
}
// If the item is a shortcut, remove its associated icon if any
if (type == nsIJumpListItem::JUMPLIST_ITEM_SHORTCUT) {
nsCOMPtr<nsIJumpListShortcut> shortcut = do_QueryInterface(item);
if (shortcut) {
nsCOMPtr<nsIURI> uri;
rv = shortcut->GetFaviconPageUri(getter_AddRefs(uri));
if (NS_SUCCEEDED(rv) && uri) {
// The local file path is stored inside the nsIURI
// Get the nsIURI spec which stores the local path for the icon to remove
nsCAutoString spec;
nsresult rv = uri->GetSpec(spec);
NS_ENSURE_SUCCESS(rv, rv);
nsCOMPtr<nsIRunnable> event
= new AsyncDeleteIconFromDisk(NS_ConvertUTF8toUTF16(spec));
mIOThread->Dispatch(event, NS_DISPATCH_NORMAL);
// The shortcut was generated from an IShellLinkW so IShellLinkW can
// only tell us what the original icon is and not the URI.
// So this field was used only temporarily as the actual icon file
// path. It should be cleared.
shortcut->SetFaviconPageUri(nsnull);
}
}
}
} // end for
return NS_OK;
}
// Ensures that we have no old ICO files left in the jump list cache
nsresult JumpListBuilder::RemoveIconCacheForAllItems()
{
// Construct the path of our jump list cache
nsCOMPtr<nsIFile> jumpListCacheDir;
nsresult rv = NS_GetSpecialDirectory("ProfLDS",
getter_AddRefs(jumpListCacheDir));
NS_ENSURE_SUCCESS(rv, rv);
rv = jumpListCacheDir->AppendNative(nsDependentCString(JumpListItem::kJumpListCacheDir));
NS_ENSURE_SUCCESS(rv, rv);
nsCOMPtr<nsISimpleEnumerator> entries;
rv = jumpListCacheDir->GetDirectoryEntries(getter_AddRefs(entries));
NS_ENSURE_SUCCESS(rv, rv);
// Loop through each directory entry and remove all ICO files found
do {
bool hasMore = false;
if (NS_FAILED(entries->HasMoreElements(&hasMore)) || !hasMore)
break;
nsCOMPtr<nsISupports> supp;
if (NS_FAILED(entries->GetNext(getter_AddRefs(supp))))
break;
nsCOMPtr<nsIFile> currFile(do_QueryInterface(supp));
nsAutoString path;
if (NS_FAILED(currFile->GetPath(path)))
continue;
PRInt32 len = path.Length();
if (StringTail(path, 4).LowerCaseEqualsASCII(".ico")) {
// Check if the cached ICO file exists
bool exists;
if (NS_FAILED(currFile->Exists(&exists)) || !exists)
continue;
// We found an ICO file that exists, so we should remove it
currFile->Remove(false);
}
} while(true);
return NS_OK;
}
/* boolean addListToBuild(in short aCatType, [optional] in nsIArray items, [optional] in AString catName); */
NS_IMETHODIMP JumpListBuilder::AddListToBuild(PRInt16 aCatType, nsIArray *items, const nsAString &catName, bool *_retval)
{
nsresult rv;
*_retval = false;
if (!mJumpListMgr)
return NS_ERROR_NOT_AVAILABLE;
switch(aCatType) {
case nsIJumpListBuilder::JUMPLIST_CATEGORY_TASKS:
{
NS_ENSURE_ARG_POINTER(items);
HRESULT hr;
nsRefPtr<IObjectCollection> collection;
hr = CoCreateInstance(CLSID_EnumerableObjectCollection, NULL, CLSCTX_INPROC_SERVER,
IID_IObjectCollection, getter_AddRefs(collection));
if (FAILED(hr))
return NS_ERROR_UNEXPECTED;
// Build the list
PRUint32 length;
items->GetLength(&length);
for (PRUint32 i = 0; i < length; ++i) {
nsCOMPtr<nsIJumpListItem> item = do_QueryElementAt(items, i);
if (!item)
continue;
// Check for separators
if (IsSeparator(item)) {
nsRefPtr<IShellLinkW> link;
rv = JumpListSeparator::GetSeparator(link);
if (NS_FAILED(rv))
return rv;
collection->AddObject(link);
continue;
}
// These should all be ShellLinks
nsRefPtr<IShellLinkW> link;
rv = JumpListShortcut::GetShellLink(item, link, mIOThread);
if (NS_FAILED(rv))
return rv;
collection->AddObject(link);
}
// We need IObjectArray to submit
nsRefPtr<IObjectArray> pArray;
hr = collection->QueryInterface(IID_IObjectArray, getter_AddRefs(pArray));
if (FAILED(hr))
return NS_ERROR_UNEXPECTED;
// Add the tasks
hr = mJumpListMgr->AddUserTasks(pArray);
if (SUCCEEDED(hr))
*_retval = true;
return NS_OK;
}
break;
case nsIJumpListBuilder::JUMPLIST_CATEGORY_RECENT:
{
if (SUCCEEDED(mJumpListMgr->AppendKnownCategory(KDC_RECENT)))
*_retval = true;
return NS_OK;
}
break;
case nsIJumpListBuilder::JUMPLIST_CATEGORY_FREQUENT:
{
if (SUCCEEDED(mJumpListMgr->AppendKnownCategory(KDC_FREQUENT)))
*_retval = true;
return NS_OK;
}
break;
case nsIJumpListBuilder::JUMPLIST_CATEGORY_CUSTOMLIST:
{
NS_ENSURE_ARG_POINTER(items);
if (catName.IsEmpty())
return NS_ERROR_INVALID_ARG;
HRESULT hr;
nsRefPtr<IObjectCollection> collection;
hr = CoCreateInstance(CLSID_EnumerableObjectCollection, NULL, CLSCTX_INPROC_SERVER,
IID_IObjectCollection, getter_AddRefs(collection));
if (FAILED(hr))
return NS_ERROR_UNEXPECTED;
PRUint32 length;
items->GetLength(&length);
for (PRUint32 i = 0; i < length; ++i) {
nsCOMPtr<nsIJumpListItem> item = do_QueryElementAt(items, i);
if (!item)
continue;
PRInt16 type;
if (NS_FAILED(item->GetType(&type)))
continue;
switch(type) {
case nsIJumpListItem::JUMPLIST_ITEM_SEPARATOR:
{
nsRefPtr<IShellLinkW> shellItem;
rv = JumpListSeparator::GetSeparator(shellItem);
if (NS_FAILED(rv))
return rv;
collection->AddObject(shellItem);
}
break;
case nsIJumpListItem::JUMPLIST_ITEM_LINK:
{
nsRefPtr<IShellItem2> shellItem;
rv = JumpListLink::GetShellItem(item, shellItem);
if (NS_FAILED(rv))
return rv;
collection->AddObject(shellItem);
}
break;
case nsIJumpListItem::JUMPLIST_ITEM_SHORTCUT:
{
nsRefPtr<IShellLinkW> shellItem;
rv = JumpListShortcut::GetShellLink(item, shellItem, mIOThread);
if (NS_FAILED(rv))
return rv;
collection->AddObject(shellItem);
}
break;
}
}
// We need IObjectArray to submit
nsRefPtr<IObjectArray> pArray;
hr = collection->QueryInterface(IID_IObjectArray, (LPVOID*)&pArray);
if (FAILED(hr))
return NS_ERROR_UNEXPECTED;
// Add the tasks
hr = mJumpListMgr->AppendCategory(catName.BeginReading(), pArray);
if (SUCCEEDED(hr))
*_retval = true;
return NS_OK;
}
break;
}
return NS_OK;
}
/* void abortListBuild(); */
NS_IMETHODIMP JumpListBuilder::AbortListBuild()
{
if (!mJumpListMgr)
return NS_ERROR_NOT_AVAILABLE;
mJumpListMgr->AbortList();
sBuildingList = false;
return NS_OK;
}
/* boolean commitListBuild(); */
NS_IMETHODIMP JumpListBuilder::CommitListBuild(bool *_retval)
{
*_retval = false;
if (!mJumpListMgr)
return NS_ERROR_NOT_AVAILABLE;
HRESULT hr = mJumpListMgr->CommitList();
sBuildingList = false;
// XXX We might want some specific error data here.
if (SUCCEEDED(hr)) {
*_retval = true;
mHasCommit = true;
}
return NS_OK;
}
/* boolean deleteActiveList(); */
NS_IMETHODIMP JumpListBuilder::DeleteActiveList(bool *_retval)
{
*_retval = false;
if (!mJumpListMgr)
return NS_ERROR_NOT_AVAILABLE;
if(sBuildingList)
AbortListBuild();
nsAutoString uid;
if (!WinTaskbar::GetAppUserModelID(uid))
return NS_OK;
if (SUCCEEDED(mJumpListMgr->DeleteList(uid.get())))
*_retval = true;
return NS_OK;
}
/* internal */
bool JumpListBuilder::IsSeparator(nsCOMPtr<nsIJumpListItem>& item)
{
PRInt16 type;
item->GetType(&type);
if (NS_FAILED(item->GetType(&type)))
return false;
if (type == nsIJumpListItem::JUMPLIST_ITEM_SEPARATOR)
return true;
return false;
}
// TransferIObjectArrayToIMutableArray - used in converting removed items
// to our objects.
nsresult JumpListBuilder::TransferIObjectArrayToIMutableArray(IObjectArray *objArray, nsIMutableArray *removedItems)
{
NS_ENSURE_ARG_POINTER(objArray);
NS_ENSURE_ARG_POINTER(removedItems);
nsresult rv;
PRUint32 count = 0;
objArray->GetCount(&count);
nsCOMPtr<nsIJumpListItem> item;
for (PRUint32 idx = 0; idx < count; idx++) {
IShellLinkW * pLink = nsnull;
IShellItem * pItem = nsnull;
if (SUCCEEDED(objArray->GetAt(idx, IID_IShellLinkW, (LPVOID*)&pLink))) {
nsCOMPtr<nsIJumpListShortcut> shortcut =
do_CreateInstance(kJumpListShortcutCID, &rv);
if (NS_FAILED(rv))
return NS_ERROR_UNEXPECTED;
rv = JumpListShortcut::GetJumpListShortcut(pLink, shortcut);
item = do_QueryInterface(shortcut);
}
else if (SUCCEEDED(objArray->GetAt(idx, IID_IShellItem, (LPVOID*)&pItem))) {
nsCOMPtr<nsIJumpListLink> link =
do_CreateInstance(kJumpListLinkCID, &rv);
if (NS_FAILED(rv))
return NS_ERROR_UNEXPECTED;
rv = JumpListLink::GetJumpListLink(pItem, link);
item = do_QueryInterface(link);
}
if (pLink)
pLink->Release();
if (pItem)
pItem->Release();
if (NS_SUCCEEDED(rv)) {
removedItems->AppendElement(item, false);
}
}
return NS_OK;
}
NS_IMETHODIMP JumpListBuilder::Observe(nsISupports* aSubject,
const char* aTopic,
const PRUnichar* aData)
{
if (nsDependentString(aData).EqualsASCII(kPrefTaskbarEnabled)) {
bool enabled = Preferences::GetBool(kPrefTaskbarEnabled, true);
if (!enabled) {
nsCOMPtr<nsIRunnable> event = new AsyncDeleteAllFaviconsFromDisk();
mIOThread->Dispatch(event, NS_DISPATCH_NORMAL);
}
}
return NS_OK;
}
AsyncFaviconDataReady::AsyncFaviconDataReady(nsIURI *aNewURI,
nsCOMPtr<nsIThread> &aIOThread)
: mNewURI(aNewURI),
mIOThread(aIOThread)
{
}
NS_IMETHODIMP
AsyncFaviconDataReady::OnFaviconDataAvailable(nsIURI *aFaviconURI,
PRUint32 aDataLen,
const PRUint8 *aData,
const nsACString &aMimeType)
{
if (!aDataLen || !aData) {
return NS_OK;
}
nsCOMPtr<nsIFile> icoFile;
nsresult rv = JumpListShortcut::GetOutputIconPath(mNewURI, icoFile);
NS_ENSURE_SUCCESS(rv, rv);
nsAutoString path;
rv = icoFile->GetPath(path);
NS_ENSURE_SUCCESS(rv, rv);
// Allocate a new buffer that we own and can use out of line in
// another thread. Copy the favicon raw data into it.
const fallible_t fallible = fallible_t();
PRUint8 *data = new (fallible) PRUint8[aDataLen];
if (!data) {
return NS_ERROR_OUT_OF_MEMORY;
}
memcpy(data, aData, aDataLen);
//AsyncWriteIconToDisk takes ownership of the heap allocated buffer.
nsCOMPtr<nsIRunnable> event = new AsyncWriteIconToDisk(path, aMimeType,
data,
aDataLen);
mIOThread->Dispatch(event, NS_DISPATCH_NORMAL);
return NS_OK;
}
// Warning: AsyncWriteIconToDisk assumes ownership of the aData buffer passed in
AsyncWriteIconToDisk::AsyncWriteIconToDisk(const nsAString &aIconPath,
const nsACString &aMimeTypeOfInputData,
PRUint8 *aBuffer,
PRUint32 aBufferLength)
: mIconPath(aIconPath),
mMimeTypeOfInputData(aMimeTypeOfInputData),
mBuffer(aBuffer),
mBufferLength(aBufferLength)
{
}
NS_IMETHODIMP AsyncWriteIconToDisk::Run()
{
NS_PRECONDITION(!NS_IsMainThread(), "Should not be called on the main thread.");
// Convert the obtained favicon data to an input stream
nsCOMPtr<nsIInputStream> stream;
nsresult rv = NS_NewByteInputStream(getter_AddRefs(stream),
reinterpret_cast<const char*>(mBuffer.get()),
mBufferLength,
NS_ASSIGNMENT_DEPEND);
NS_ENSURE_SUCCESS(rv, rv);
// Decode the image from the format it was returned to us in (probably PNG)
nsCOMPtr<imgIContainer> container;
nsCOMPtr<imgITools> imgtool = do_CreateInstance("@mozilla.org/image/tools;1");
rv = imgtool->DecodeImageData(stream, mMimeTypeOfInputData,
getter_AddRefs(container));
NS_ENSURE_SUCCESS(rv, rv);
// Get the recommended icon width and height, or if failure to obtain
// these settings, fall back to 16x16 ICOs. These values can be different
// if the user has a different DPI setting other than 100%.
// Windows would scale the 16x16 icon themselves, but it's better
// we let our ICO encoder do it.
PRInt32 systemIconWidth = GetSystemMetrics(SM_CXSMICON);
PRInt32 systemIconHeight = GetSystemMetrics(SM_CYSMICON);
if (systemIconWidth == 0 || systemIconHeight == 0) {
systemIconWidth = 16;
systemIconHeight = 16;
}
// Scale the image to the needed size and in ICO format
mMimeTypeOfInputData.AssignLiteral("image/vnd.microsoft.icon");
nsCOMPtr<nsIInputStream> iconStream;
rv = imgtool->EncodeScaledImage(container, mMimeTypeOfInputData,
systemIconWidth,
systemIconHeight,
EmptyString(),
getter_AddRefs(iconStream));
NS_ENSURE_SUCCESS(rv, rv);
nsCOMPtr<nsILocalFile> icoFile
= do_CreateInstance("@mozilla.org/file/local;1");
NS_ENSURE_TRUE(icoFile, NS_ERROR_FAILURE);
rv = icoFile->InitWithPath(mIconPath);
// Setup the output stream for the ICO file on disk
nsCOMPtr<nsIOutputStream> outputStream;
rv = NS_NewLocalFileOutputStream(getter_AddRefs(outputStream), icoFile);
NS_ENSURE_SUCCESS(rv, rv);
// Obtain the ICO buffer size from the re-encoded ICO stream
PRUint32 bufSize;
rv = iconStream->Available(&bufSize);
NS_ENSURE_SUCCESS(rv, rv);
// Setup a buffered output stream from the stream object
// so that we can simply use WriteFrom with the stream object
nsCOMPtr<nsIOutputStream> bufferedOutputStream;
rv = NS_NewBufferedOutputStream(getter_AddRefs(bufferedOutputStream),
outputStream, bufSize);
NS_ENSURE_SUCCESS(rv, rv);
// Write out the icon stream to disk and make sure we wrote everything
PRUint32 wrote;
rv = bufferedOutputStream->WriteFrom(iconStream, bufSize, &wrote);
NS_ASSERTION(bufSize == wrote, "Icon wrote size should be equal to requested write size");
// Cleanup
bufferedOutputStream->Close();
outputStream->Close();
return rv;
}
AsyncWriteIconToDisk::~AsyncWriteIconToDisk()
{
}
AsyncDeleteIconFromDisk::AsyncDeleteIconFromDisk(const nsAString &aIconPath)
: mIconPath(aIconPath)
{
}
NS_IMETHODIMP AsyncDeleteIconFromDisk::Run()
{
// Construct the parent path of the passed in path
nsCOMPtr<nsILocalFile> icoFile = do_CreateInstance("@mozilla.org/file/local;1");
NS_ENSURE_TRUE(icoFile, NS_ERROR_FAILURE);
nsresult rv = icoFile->InitWithPath(mIconPath);
NS_ENSURE_SUCCESS(rv, rv);
// Check if the cached ICO file exists
bool exists;
rv = icoFile->Exists(&exists);
NS_ENSURE_SUCCESS(rv, rv);
// Check that we aren't deleting some arbitrary file that is not an icon
if (StringTail(mIconPath, 4).LowerCaseEqualsASCII(".ico")) {
// Check if the cached ICO file exists
bool exists;
if (NS_FAILED(icoFile->Exists(&exists)) || !exists)
return NS_ERROR_FAILURE;
// We found an ICO file that exists, so we should remove it
icoFile->Remove(false);
}
return NS_OK;
}
AsyncDeleteIconFromDisk::~AsyncDeleteIconFromDisk()
{
}
AsyncDeleteAllFaviconsFromDisk::AsyncDeleteAllFaviconsFromDisk()
{
}
NS_IMETHODIMP AsyncDeleteAllFaviconsFromDisk::Run()
{
// Construct the path of our jump list cache
nsCOMPtr<nsIFile> jumpListCacheDir;
nsresult rv = NS_GetSpecialDirectory("ProfLDS",
getter_AddRefs(jumpListCacheDir));
NS_ENSURE_SUCCESS(rv, rv);
rv = jumpListCacheDir->AppendNative(nsDependentCString(JumpListItem::kJumpListCacheDir));
NS_ENSURE_SUCCESS(rv, rv);
nsCOMPtr<nsISimpleEnumerator> entries;
rv = jumpListCacheDir->GetDirectoryEntries(getter_AddRefs(entries));
NS_ENSURE_SUCCESS(rv, rv);
// Loop through each directory entry and remove all ICO files found
do {
bool hasMore = false;
if (NS_FAILED(entries->HasMoreElements(&hasMore)) || !hasMore)
break;
nsCOMPtr<nsISupports> supp;
if (NS_FAILED(entries->GetNext(getter_AddRefs(supp))))
break;
nsCOMPtr<nsIFile> currFile(do_QueryInterface(supp));
nsAutoString path;
if (NS_FAILED(currFile->GetPath(path)))
continue;
PRInt32 len = path.Length();
if (StringTail(path, 4).LowerCaseEqualsASCII(".ico")) {
// Check if the cached ICO file exists
bool exists;
if (NS_FAILED(currFile->Exists(&exists)) || !exists)
continue;
// We found an ICO file that exists, so we should remove it
currFile->Remove(false);
}
} while(true);
return NS_OK;
}
AsyncDeleteAllFaviconsFromDisk::~AsyncDeleteAllFaviconsFromDisk()
{
}
} // namespace widget
} // namespace mozilla
#endif // MOZ_WINSDK_TARGETVER >= MOZ_NTDDI_WIN7
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