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gecko/widget/windows/JumpListBuilder.cpp

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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#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 "nsStringStream.h"
#include "nsNetUtil.h"
#include "nsThreadUtils.h"
#include "mozilla/LazyIdleThread.h"
#include "nsIObserverService.h"
#include "WinUtils.h"
// The amount of time, in milliseconds, that our IO thread will stay alive after the last event it processes.
#define DEFAULT_THREAD_TIMEOUT_MS 30000
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_ISUPPORTS(JumpListBuilder, nsIJumpListBuilder, nsIObserver)
#define TOPIC_PROFILE_BEFORE_CHANGE "profile-before-change"
#define TOPIC_CLEAR_PRIVATE_DATA "clear-private-data"
JumpListBuilder::JumpListBuilder() :
mMaxItems(0),
mHasCommit(false)
{
::CoInitialize(nullptr);
CoCreateInstance(CLSID_DestinationList, nullptr, CLSCTX_INPROC_SERVER,
IID_ICustomDestinationList, getter_AddRefs(mJumpListMgr));
// Make a lazy thread for any IO
mIOThread = new LazyIdleThread(DEFAULT_THREAD_TIMEOUT_MS,
NS_LITERAL_CSTRING("Jump List"),
LazyIdleThread::ManualShutdown);
Preferences::AddStrongObserver(this, kPrefTaskbarEnabled);
nsCOMPtr<nsIObserverService> observerService =
do_GetService("@mozilla.org/observer-service;1");
if (observerService) {
observerService->AddObserver(this, TOPIC_PROFILE_BEFORE_CHANGE, false);
observerService->AddObserver(this, TOPIC_CLEAR_PRIVATE_DATA, false);
}
}
JumpListBuilder::~JumpListBuilder()
{
Preferences::RemoveObserver(this, kPrefTaskbarEnabled);
mJumpListMgr = nullptr;
::CoUninitialize();
}
/* readonly attribute short available; */
NS_IMETHODIMP JumpListBuilder::GetAvailable(int16_t *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(int16_t *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;
// The returned objArray of removed items are for manually removed items.
// This does not return items which are removed because they were previously
// part of the jump list but are no longer part of the jump list.
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;
uint32_t length;
items->GetLength(&length);
for (uint32_t i = 0; i < length; ++i) {
//Obtain an IJumpListItem and get the type
nsCOMPtr<nsIJumpListItem> item = do_QueryElementAt(items, i);
if (!item) {
continue;
}
int16_t 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
nsAutoCString spec;
nsresult rv = uri->GetSpec(spec);
NS_ENSURE_SUCCESS(rv, rv);
nsCOMPtr<nsIRunnable> event
= new mozilla::widget::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(nullptr);
}
}
}
} // 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(
mozilla::widget::FaviconHelper::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;
int32_t 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(int16_t 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, nullptr,
CLSCTX_INPROC_SERVER, IID_IObjectCollection,
getter_AddRefs(collection));
if (FAILED(hr))
return NS_ERROR_UNEXPECTED;
// Build the list
uint32_t length;
items->GetLength(&length);
for (uint32_t 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, nullptr,
CLSCTX_INPROC_SERVER, IID_IObjectCollection,
getter_AddRefs(collection));
if (FAILED(hr))
return NS_ERROR_UNEXPECTED;
uint32_t length;
items->GetLength(&length);
for (uint32_t i = 0; i < length; ++i) {
nsCOMPtr<nsIJumpListItem> item = do_QueryElementAt(items, i);
if (!item)
continue;
int16_t 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(reinterpret_cast<const wchar_t*>(catName.BeginReading()), pArray);
if (SUCCEEDED(hr))
*_retval = true;
// Get rid of the old icons
nsCOMPtr<nsIRunnable> event =
new mozilla::widget::AsyncDeleteAllFaviconsFromDisk(true);
mIOThread->Dispatch(event, NS_DISPATCH_NORMAL);
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)
{
int16_t 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;
uint32_t count = 0;
objArray->GetCount(&count);
nsCOMPtr<nsIJumpListItem> item;
for (uint32_t idx = 0; idx < count; idx++) {
IShellLinkW * pLink = nullptr;
IShellItem * pItem = nullptr;
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 char16_t* aData)
{
NS_ENSURE_ARG_POINTER(aTopic);
if (strcmp(aTopic, TOPIC_PROFILE_BEFORE_CHANGE) == 0) {
nsCOMPtr<nsIObserverService> observerService =
do_GetService("@mozilla.org/observer-service;1");
if (observerService) {
observerService->RemoveObserver(this, TOPIC_PROFILE_BEFORE_CHANGE);
}
mIOThread->Shutdown();
} else if (strcmp(aTopic, "nsPref:changed") == 0 &&
nsDependentString(aData).EqualsASCII(kPrefTaskbarEnabled)) {
bool enabled = Preferences::GetBool(kPrefTaskbarEnabled, true);
if (!enabled) {
nsCOMPtr<nsIRunnable> event =
new mozilla::widget::AsyncDeleteAllFaviconsFromDisk();
mIOThread->Dispatch(event, NS_DISPATCH_NORMAL);
}
} else if (strcmp(aTopic, TOPIC_CLEAR_PRIVATE_DATA) == 0) {
// Delete JumpListCache icons from Disk, if any.
nsCOMPtr<nsIRunnable> event =
new mozilla::widget::AsyncDeleteAllFaviconsFromDisk(false);
mIOThread->Dispatch(event, NS_DISPATCH_NORMAL);
}
return NS_OK;
}
} // namespace widget
} // namespace mozilla
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