diff options
Diffstat (limited to 'browser/components/shell/nsGNOMEShellSearchProvider.cpp')
| -rw-r--r-- | browser/components/shell/nsGNOMEShellSearchProvider.cpp | 442 |
1 files changed, 442 insertions, 0 deletions
diff --git a/browser/components/shell/nsGNOMEShellSearchProvider.cpp b/browser/components/shell/nsGNOMEShellSearchProvider.cpp new file mode 100644 index 0000000000..b5658da034 --- /dev/null +++ b/browser/components/shell/nsGNOMEShellSearchProvider.cpp @@ -0,0 +1,442 @@ +/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* vim:expandtab:shiftwidth=2:tabstop=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 "nsGNOMEShellSearchProvider.h" + +#include "nsToolkitCompsCID.h" +#include "nsIFaviconService.h" +#include "base/message_loop.h" // for MessageLoop +#include "base/task.h" // for NewRunnableMethod, etc +#include "mozilla/gfx/2D.h" +#include "nsComponentManagerUtils.h" +#include "nsIIOService.h" +#include "nsIURI.h" +#include "nsNetCID.h" +#include "nsPrintfCString.h" +#include "nsServiceManagerUtils.h" + +#include <dbus/dbus.h> +#include <dbus/dbus-glib-lowlevel.h> + +#include "imgIContainer.h" +#include "imgITools.h" + +using namespace mozilla; +using namespace mozilla::gfx; + +class AsyncFaviconDataReady final : public nsIFaviconDataCallback { + public: + NS_DECL_ISUPPORTS + NS_DECL_NSIFAVICONDATACALLBACK + + AsyncFaviconDataReady(RefPtr<nsGNOMEShellHistorySearchResult> aSearchResult, + int aIconIndex, int aTimeStamp) + : mSearchResult(aSearchResult), + mIconIndex(aIconIndex), + mTimeStamp(aTimeStamp){}; + + private: + ~AsyncFaviconDataReady() {} + + RefPtr<nsGNOMEShellHistorySearchResult> mSearchResult; + int mIconIndex; + int mTimeStamp; +}; + +NS_IMPL_ISUPPORTS(AsyncFaviconDataReady, nsIFaviconDataCallback) + +// Inspired by SurfaceToPackedBGRA +static UniquePtr<uint8_t[]> SurfaceToPackedRGBA(DataSourceSurface* aSurface) { + IntSize size = aSurface->GetSize(); + CheckedInt<size_t> bufferSize = + CheckedInt<size_t>(size.width * 4) * CheckedInt<size_t>(size.height); + if (!bufferSize.isValid()) { + return nullptr; + } + UniquePtr<uint8_t[]> imageBuffer(new (std::nothrow) + uint8_t[bufferSize.value()]); + if (!imageBuffer) { + return nullptr; + } + + DataSourceSurface::MappedSurface map; + if (!aSurface->Map(DataSourceSurface::MapType::READ, &map)) { + return nullptr; + } + + // Convert BGRA to RGBA + uint32_t* aSrc = (uint32_t*)map.mData; + uint32_t* aDst = (uint32_t*)imageBuffer.get(); + for (int i = 0; i < size.width * size.height; i++, aDst++, aSrc++) { + *aDst = *aSrc & 0xff00ff00; + *aDst |= (*aSrc & 0xff) << 16; + *aDst |= (*aSrc & 0xff0000) >> 16; + } + + aSurface->Unmap(); + + return imageBuffer; +} + +NS_IMETHODIMP +AsyncFaviconDataReady::OnComplete(nsIURI* aFaviconURI, uint32_t aDataLen, + const uint8_t* aData, + const nsACString& aMimeType, + uint16_t aWidth) { + // This is a callback from some previous search so we don't want it + if (mTimeStamp != mSearchResult->GetTimeStamp() || !aData || !aDataLen) { + return NS_ERROR_FAILURE; + } + + // 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"); + nsresult rv = imgtool->DecodeImageFromBuffer( + reinterpret_cast<const char*>(aData), aDataLen, aMimeType, + getter_AddRefs(container)); + NS_ENSURE_SUCCESS(rv, rv); + + RefPtr<SourceSurface> surface = container->GetFrame( + imgIContainer::FRAME_FIRST, + imgIContainer::FLAG_SYNC_DECODE | imgIContainer::FLAG_ASYNC_NOTIFY); + + if (!surface || surface->GetFormat() != SurfaceFormat::B8G8R8A8) { + return NS_ERROR_FAILURE; + } + + // Allocate a new buffer that we own. + RefPtr<DataSourceSurface> dataSurface = surface->GetDataSurface(); + UniquePtr<uint8_t[]> data = SurfaceToPackedRGBA(dataSurface); + if (!data) { + return NS_ERROR_OUT_OF_MEMORY; + } + + mSearchResult->SetHistoryIcon(mTimeStamp, std::move(data), + surface->GetSize().width, + surface->GetSize().height, mIconIndex); + return NS_OK; +} + +DBusHandlerResult nsGNOMEShellSearchProvider::HandleSearchResultSet( + DBusMessage* aMsg, bool aInitialSearch) { + // Discard any existing search results. + mSearchResult = nullptr; + + RefPtr<nsGNOMEShellHistorySearchResult> newSearch = + new nsGNOMEShellHistorySearchResult(this, mConnection, + mSearchResultTimeStamp); + mSearchResultTimeStamp++; + newSearch->SetTimeStamp(mSearchResultTimeStamp); + + // Send the search request over DBus. We'll get reply over DBus it will be + // set to mSearchResult by nsGNOMEShellSearchProvider::SetSearchResult(). + return aInitialSearch + ? DBusHandleInitialResultSet(newSearch.forget(), aMsg) + : DBusHandleSubsearchResultSet(newSearch.forget(), aMsg); +} + +DBusHandlerResult nsGNOMEShellSearchProvider::HandleResultMetas( + DBusMessage* aMsg) { + if (!mSearchResult) { + NS_WARNING("Missing nsGNOMEShellHistorySearchResult."); + return DBUS_HANDLER_RESULT_NOT_YET_HANDLED; + } + return DBusHandleResultMetas(mSearchResult, aMsg); +} + +DBusHandlerResult nsGNOMEShellSearchProvider::ActivateResult( + DBusMessage* aMsg) { + if (!mSearchResult) { + NS_WARNING("Missing nsGNOMEShellHistorySearchResult."); + return DBUS_HANDLER_RESULT_NOT_YET_HANDLED; + } + return DBusActivateResult(mSearchResult, aMsg); +} + +DBusHandlerResult nsGNOMEShellSearchProvider::LaunchSearch(DBusMessage* aMsg) { + if (!mSearchResult) { + NS_WARNING("Missing nsGNOMEShellHistorySearchResult."); + return DBUS_HANDLER_RESULT_NOT_YET_HANDLED; + } + return DBusLaunchSearch(mSearchResult, aMsg); +} + +DBusHandlerResult nsGNOMEShellSearchProvider::HandleDBusMessage( + DBusConnection* aConnection, DBusMessage* aMsg) { + NS_ASSERTION(mConnection == aConnection, "Wrong D-Bus connection."); + + const char* method = dbus_message_get_member(aMsg); + const char* iface = dbus_message_get_interface(aMsg); + + if ((strcmp("Introspect", method) == 0) && + (strcmp("org.freedesktop.DBus.Introspectable", iface) == 0)) { + return DBusIntrospect(mConnection, aMsg); + } + + if (strcmp("org.gnome.Shell.SearchProvider2", iface) == 0) { + if (strcmp("GetInitialResultSet", method) == 0) { + return HandleSearchResultSet(aMsg, /* aInitialSearch */ true); + } + if (strcmp("GetSubsearchResultSet", method) == 0) { + return HandleSearchResultSet(aMsg, /* aInitialSearch */ false); + } + if (strcmp("GetResultMetas", method) == 0) { + return HandleResultMetas(aMsg); + } + if (strcmp("ActivateResult", method) == 0) { + return ActivateResult(aMsg); + } + if (strcmp("LaunchSearch", method) == 0) { + return LaunchSearch(aMsg); + } + } + + return DBUS_HANDLER_RESULT_NOT_YET_HANDLED; +} + +void nsGNOMEShellSearchProvider::UnregisterDBusInterface( + DBusConnection* aConnection) { + NS_ASSERTION(mConnection == aConnection, "Wrong D-Bus connection."); + // Not implemented +} + +static DBusHandlerResult message_handler(DBusConnection* conn, + DBusMessage* aMsg, void* user_data) { + auto interface = static_cast<nsGNOMEShellSearchProvider*>(user_data); + return interface->HandleDBusMessage(conn, aMsg); +} + +static void unregister(DBusConnection* conn, void* user_data) { + auto interface = static_cast<nsGNOMEShellSearchProvider*>(user_data); + interface->UnregisterDBusInterface(conn); +} + +static DBusObjectPathVTable remoteHandlersTable = { + .unregister_function = unregister, + .message_function = message_handler, +}; + +nsresult nsGNOMEShellSearchProvider::Startup() { + if (mConnection && dbus_connection_get_is_connected(mConnection)) { + // We're already connected so we don't need to reconnect + return NS_ERROR_ALREADY_INITIALIZED; + } + + mConnection = + already_AddRefed<DBusConnection>(dbus_bus_get(DBUS_BUS_SESSION, nullptr)); + if (!mConnection) { + return NS_ERROR_FAILURE; + } + dbus_connection_set_exit_on_disconnect(mConnection, false); + dbus_connection_setup_with_g_main(mConnection, nullptr); + + DBusError err; + dbus_error_init(&err); + dbus_bus_request_name(mConnection, GetDBusBusName(), + DBUS_NAME_FLAG_DO_NOT_QUEUE, &err); + // The interface is already owned - there is another application/profile + // instance already running. + if (dbus_error_is_set(&err)) { + dbus_error_free(&err); + mConnection = nullptr; + return NS_ERROR_FAILURE; + } + + if (!dbus_connection_register_object_path(mConnection, GetDBusObjectPath(), + &remoteHandlersTable, this)) { + mConnection = nullptr; + return NS_ERROR_FAILURE; + } + + mSearchResultTimeStamp = 0; + return NS_OK; +} + +void nsGNOMEShellSearchProvider::Shutdown() { + if (!mConnection) { + return; + } + + dbus_connection_unregister_object_path(mConnection, GetDBusObjectPath()); + + // dbus_connection_unref() will be called by RefPtr here. + mConnection = nullptr; +} + +bool nsGNOMEShellSearchProvider::SetSearchResult( + RefPtr<nsGNOMEShellHistorySearchResult> aSearchResult) { + MOZ_ASSERT(!mSearchResult); + + if (mSearchResultTimeStamp != aSearchResult->GetTimeStamp()) { + NS_WARNING("Time stamp mismatch."); + return false; + } + mSearchResult = aSearchResult; + return true; +} + +static void DispatchSearchResults( + RefPtr<nsGNOMEShellHistorySearchResult> aSearchResult, + nsCOMPtr<nsINavHistoryContainerResultNode> aHistResultContainer) { + aSearchResult->ReceiveSearchResultContainer(aHistResultContainer); +} + +nsresult nsGNOMEShellHistoryService::QueryHistory( + RefPtr<nsGNOMEShellHistorySearchResult> aSearchResult) { + if (!mHistoryService) { + mHistoryService = do_GetService(NS_NAVHISTORYSERVICE_CONTRACTID); + if (!mHistoryService) { + return NS_ERROR_FAILURE; + } + } + + nsresult rv; + nsCOMPtr<nsINavHistoryQuery> histQuery; + rv = mHistoryService->GetNewQuery(getter_AddRefs(histQuery)); + NS_ENSURE_SUCCESS(rv, rv); + + rv = histQuery->SetSearchTerms( + NS_ConvertUTF8toUTF16(aSearchResult->GetSearchTerm())); + NS_ENSURE_SUCCESS(rv, rv); + + nsCOMPtr<nsINavHistoryQueryOptions> histQueryOpts; + rv = mHistoryService->GetNewQueryOptions(getter_AddRefs(histQueryOpts)); + NS_ENSURE_SUCCESS(rv, rv); + + rv = histQueryOpts->SetSortingMode( + nsINavHistoryQueryOptions::SORT_BY_FRECENCY_DESCENDING); + NS_ENSURE_SUCCESS(rv, rv); + + rv = histQueryOpts->SetMaxResults(MAX_SEARCH_RESULTS_NUM); + NS_ENSURE_SUCCESS(rv, rv); + + nsCOMPtr<nsINavHistoryResult> histResult; + rv = mHistoryService->ExecuteQuery(histQuery, histQueryOpts, + getter_AddRefs(histResult)); + NS_ENSURE_SUCCESS(rv, rv); + + nsCOMPtr<nsINavHistoryContainerResultNode> resultContainer; + + rv = histResult->GetRoot(getter_AddRefs(resultContainer)); + NS_ENSURE_SUCCESS(rv, rv); + + rv = resultContainer->SetContainerOpen(true); + NS_ENSURE_SUCCESS(rv, rv); + + // Simulate async searching by delayed reply. This search API will + // likely become async in the future and we want to be sure to not rely on + // its current synchronous behavior. + MOZ_ASSERT(MessageLoop::current()); + MessageLoop::current()->PostTask( + NewRunnableFunction("Gnome shell search results", &DispatchSearchResults, + aSearchResult, resultContainer)); + + return NS_OK; +} + +static void DBusGetIDKeyForURI(int aIndex, nsAutoCString& aUri, + nsAutoCString& aIDKey) { + // Compose ID as NN:URL where NN is index to our current history + // result container. + aIDKey = nsPrintfCString("%.2d:%s", aIndex, aUri.get()); +} + +void nsGNOMEShellHistorySearchResult::HandleSearchResultReply() { + MOZ_ASSERT(mReply); + + uint32_t childCount = 0; + nsresult rv = mHistResultContainer->GetChildCount(&childCount); + + DBusMessageIter iter; + dbus_message_iter_init_append(mReply, &iter); + DBusMessageIter iterArray; + dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY, "s", &iterArray); + + if (NS_SUCCEEDED(rv) && childCount > 0) { + // Obtain the favicon service and get the favicon for the specified page + nsCOMPtr<nsIFaviconService> favIconSvc( + do_GetService("@mozilla.org/browser/favicon-service;1")); + nsCOMPtr<nsIIOService> ios(do_GetService(NS_IOSERVICE_CONTRACTID)); + + if (childCount > MAX_SEARCH_RESULTS_NUM) { + childCount = MAX_SEARCH_RESULTS_NUM; + } + + for (uint32_t i = 0; i < childCount; i++) { + nsCOMPtr<nsINavHistoryResultNode> child; + mHistResultContainer->GetChild(i, getter_AddRefs(child)); + if (NS_WARN_IF(NS_FAILED(rv))) { + continue; + } + if (!IsHistoryResultNodeURI(child)) { + continue; + } + + nsAutoCString uri; + child->GetUri(uri); + + nsCOMPtr<nsIURI> iconIri; + ios->NewURI(uri, nullptr, nullptr, getter_AddRefs(iconIri)); + nsCOMPtr<nsIFaviconDataCallback> callback = + new AsyncFaviconDataReady(this, i, mTimeStamp); + favIconSvc->GetFaviconDataForPage(iconIri, callback, 0); + + nsAutoCString idKey; + DBusGetIDKeyForURI(i, uri, idKey); + + const char* id = idKey.get(); + dbus_message_iter_append_basic(&iterArray, DBUS_TYPE_STRING, &id); + } + } + + nsPrintfCString searchString("%s:%s", KEYWORD_SEARCH_STRING, + mSearchTerm.get()); + const char* search = searchString.get(); + dbus_message_iter_append_basic(&iterArray, DBUS_TYPE_STRING, &search); + + dbus_message_iter_close_container(&iter, &iterArray); + + dbus_connection_send(mConnection, mReply, nullptr); + dbus_message_unref(mReply); + + mReply = nullptr; +} + +void nsGNOMEShellHistorySearchResult::ReceiveSearchResultContainer( + nsCOMPtr<nsINavHistoryContainerResultNode> aHistResultContainer) { + // Propagate search results to nsGNOMEShellSearchProvider. + // SetSearchResult() checks this is up-to-date search (our time stamp matches + // latest requested search timestamp). + if (mSearchProvider->SetSearchResult(this)) { + mHistResultContainer = aHistResultContainer; + HandleSearchResultReply(); + } +} + +void nsGNOMEShellHistorySearchResult::SetHistoryIcon(int aTimeStamp, + UniquePtr<uint8_t[]> aData, + int aWidth, int aHeight, + int aIconIndex) { + MOZ_ASSERT(mTimeStamp == aTimeStamp); + MOZ_RELEASE_ASSERT(aIconIndex < MAX_SEARCH_RESULTS_NUM); + mHistoryIcons[aIconIndex].Set(mTimeStamp, std::move(aData), aWidth, aHeight); +} + +GnomeHistoryIcon* nsGNOMEShellHistorySearchResult::GetHistoryIcon( + int aIconIndex) { + MOZ_RELEASE_ASSERT(aIconIndex < MAX_SEARCH_RESULTS_NUM); + if (mHistoryIcons[aIconIndex].GetTimeStamp() == mTimeStamp && + mHistoryIcons[aIconIndex].IsLoaded()) { + return mHistoryIcons + aIconIndex; + } + return nullptr; +} + +nsGNOMEShellHistoryService* GetGNOMEShellHistoryService() { + static nsGNOMEShellHistoryService gGNOMEShellHistoryService; + return &gGNOMEShellHistoryService; +} |