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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
#include "mozilla/ArrayUtils.h"
#include "mozilla/Preferences.h"
#include "nsCOMPtr.h"
#include "nsGNOMEShellService.h"
#include "nsShellService.h"
#include "nsIFile.h"
#include "nsIProperties.h"
#include "nsDirectoryServiceDefs.h"
#include "prenv.h"
#include "nsString.h"
#include "nsIGIOService.h"
#include "nsIGSettingsService.h"
#include "nsIStringBundle.h"
#include "nsServiceManagerUtils.h"
#include "nsIImageLoadingContent.h"
#include "imgIRequest.h"
#include "imgIContainer.h"
#include "mozilla/Components.h"
#include "mozilla/GRefPtr.h"
#include "mozilla/GUniquePtr.h"
#include "mozilla/WidgetUtilsGtk.h"
#include "mozilla/dom/Element.h"
#include "nsImageToPixbuf.h"
#include "nsXULAppAPI.h"
#include "gfxPlatform.h"
#include <glib.h>
#include <gdk/gdk.h>
#include <gdk-pixbuf/gdk-pixbuf.h>
#include <stdlib.h>
using namespace mozilla;
struct ProtocolAssociation {
const char* name;
bool essential;
};
struct MimeTypeAssociation {
const char* mimeType;
const char* extensions;
};
static const ProtocolAssociation appProtocols[] = {
// clang-format off
{ "http", true },
{ "https", true },
{ "chrome", false }
// clang-format on
};
static const MimeTypeAssociation appTypes[] = {
// clang-format off
{ "text/html", "htm html shtml" },
{ "application/xhtml+xml", "xhtml xht" }
// clang-format on
};
#define kDesktopBGSchema "org.gnome.desktop.background"_ns
#define kDesktopColorGSKey "primary-color"_ns
nsresult nsGNOMEShellService::Init() {
nsresult rv;
if (gfxPlatform::IsHeadless()) {
return NS_ERROR_NOT_AVAILABLE;
}
// GSettings or GIO _must_ be available, or we do not allow
// CreateInstance to succeed.
nsCOMPtr<nsIGIOService> giovfs = do_GetService(NS_GIOSERVICE_CONTRACTID);
nsCOMPtr<nsIGSettingsService> gsettings =
do_GetService(NS_GSETTINGSSERVICE_CONTRACTID);
if (!giovfs && !gsettings) return NS_ERROR_NOT_AVAILABLE;
#ifdef MOZ_ENABLE_DBUS
if (widget::IsGnomeDesktopEnvironment() &&
Preferences::GetBool("browser.gnome-search-provider.enabled", false)) {
mSearchProvider.Startup();
}
#endif
// Check G_BROKEN_FILENAMES. If it's set, then filenames in glib use
// the locale encoding. If it's not set, they use UTF-8.
mUseLocaleFilenames = PR_GetEnv("G_BROKEN_FILENAMES") != nullptr;
if (GetAppPathFromLauncher()) return NS_OK;
nsCOMPtr<nsIProperties> dirSvc(
do_GetService("@mozilla.org/file/directory_service;1"));
NS_ENSURE_TRUE(dirSvc, NS_ERROR_NOT_AVAILABLE);
nsCOMPtr<nsIFile> appPath;
rv = dirSvc->Get(XRE_EXECUTABLE_FILE, NS_GET_IID(nsIFile),
getter_AddRefs(appPath));
NS_ENSURE_SUCCESS(rv, rv);
return appPath->GetNativePath(mAppPath);
}
NS_IMPL_ISUPPORTS(nsGNOMEShellService, nsIGNOMEShellService, nsIShellService,
nsIToolkitShellService)
bool nsGNOMEShellService::GetAppPathFromLauncher() {
gchar* tmp;
const char* launcher = PR_GetEnv("MOZ_APP_LAUNCHER");
if (!launcher) return false;
if (g_path_is_absolute(launcher)) {
mAppPath = launcher;
tmp = g_path_get_basename(launcher);
gchar* fullpath = g_find_program_in_path(tmp);
if (fullpath && mAppPath.Equals(fullpath)) mAppIsInPath = true;
g_free(fullpath);
} else {
tmp = g_find_program_in_path(launcher);
if (!tmp) return false;
mAppPath = tmp;
mAppIsInPath = true;
}
g_free(tmp);
return true;
}
bool nsGNOMEShellService::KeyMatchesAppName(const char* aKeyValue) const {
gchar* commandPath;
if (mUseLocaleFilenames) {
gchar* nativePath =
g_filename_from_utf8(aKeyValue, -1, nullptr, nullptr, nullptr);
if (!nativePath) {
NS_ERROR("Error converting path to filesystem encoding");
return false;
}
commandPath = g_find_program_in_path(nativePath);
g_free(nativePath);
} else {
commandPath = g_find_program_in_path(aKeyValue);
}
if (!commandPath) return false;
bool matches = mAppPath.Equals(commandPath);
g_free(commandPath);
return matches;
}
bool nsGNOMEShellService::CheckHandlerMatchesAppName(
const nsACString& handler) const {
gint argc;
gchar** argv;
nsAutoCString command(handler);
// The string will be something of the form: [/path/to/]browser "%s"
// We want to remove all of the parameters and get just the binary name.
if (g_shell_parse_argv(command.get(), &argc, &argv, nullptr) && argc > 0) {
command.Assign(argv[0]);
g_strfreev(argv);
}
if (!KeyMatchesAppName(command.get()))
return false; // the handler is set to another app
return true;
}
NS_IMETHODIMP
nsGNOMEShellService::IsDefaultBrowser(bool aForAllTypes,
bool* aIsDefaultBrowser) {
*aIsDefaultBrowser = false;
if (widget::IsRunningUnderSnap()) {
const gchar* argv[] = {"xdg-settings", "check", "default-web-browser",
(MOZ_APP_NAME ".desktop"), nullptr};
GSpawnFlags flags = static_cast<GSpawnFlags>(G_SPAWN_SEARCH_PATH |
G_SPAWN_STDERR_TO_DEV_NULL);
gchar* output = nullptr;
gint exit_status = 0;
if (!g_spawn_sync(nullptr, (gchar**)argv, nullptr, flags, nullptr, nullptr,
&output, nullptr, &exit_status, nullptr)) {
return NS_OK;
}
if (exit_status != 0) {
g_free(output);
return NS_OK;
}
if (strcmp(output, "yes\n") == 0) {
*aIsDefaultBrowser = true;
}
g_free(output);
return NS_OK;
}
nsCOMPtr<nsIGIOService> giovfs = do_GetService(NS_GIOSERVICE_CONTRACTID);
nsAutoCString handler;
nsCOMPtr<nsIGIOMimeApp> gioApp;
for (unsigned int i = 0; i < ArrayLength(appProtocols); ++i) {
if (!appProtocols[i].essential) continue;
if (!IsDefaultForSchemeHelper(nsDependentCString(appProtocols[i].name),
giovfs)) {
return NS_OK;
}
}
*aIsDefaultBrowser = true;
return NS_OK;
}
bool nsGNOMEShellService::IsDefaultForSchemeHelper(
const nsACString& aScheme, nsIGIOService* giovfs) const {
nsCOMPtr<nsIGIOService> gioService;
if (!giovfs) {
gioService = do_GetService(NS_GIOSERVICE_CONTRACTID);
giovfs = gioService.get();
}
if (!giovfs) {
return false;
}
nsCOMPtr<nsIGIOMimeApp> gioApp;
nsCOMPtr<nsIHandlerApp> handlerApp;
giovfs->GetAppForURIScheme(aScheme, getter_AddRefs(handlerApp));
gioApp = do_QueryInterface(handlerApp);
if (!gioApp) {
return false;
}
nsAutoCString handler;
gioApp->GetCommand(handler);
return CheckHandlerMatchesAppName(handler);
}
NS_IMETHODIMP
nsGNOMEShellService::IsDefaultForScheme(const nsACString& aScheme,
bool* aIsDefaultBrowser) {
*aIsDefaultBrowser = IsDefaultForSchemeHelper(aScheme, nullptr);
return NS_OK;
}
NS_IMETHODIMP
nsGNOMEShellService::SetDefaultBrowser(bool aForAllUsers) {
#ifdef DEBUG
if (aForAllUsers)
NS_WARNING(
"Setting the default browser for all users is not yet supported");
#endif
if (widget::IsRunningUnderSnap()) {
const gchar* argv[] = {"xdg-settings", "set", "default-web-browser",
(MOZ_APP_NAME ".desktop"), nullptr};
GSpawnFlags flags = static_cast<GSpawnFlags>(G_SPAWN_SEARCH_PATH |
G_SPAWN_STDOUT_TO_DEV_NULL |
G_SPAWN_STDERR_TO_DEV_NULL);
g_spawn_sync(nullptr, (gchar**)argv, nullptr, flags, nullptr, nullptr,
nullptr, nullptr, nullptr, nullptr);
return NS_OK;
}
nsCOMPtr<nsIGIOService> giovfs = do_GetService(NS_GIOSERVICE_CONTRACTID);
if (giovfs) {
nsresult rv;
nsCOMPtr<nsIStringBundleService> bundleService =
components::StringBundle::Service(&rv);
NS_ENSURE_SUCCESS(rv, rv);
nsCOMPtr<nsIStringBundle> brandBundle;
rv = bundleService->CreateBundle(BRAND_PROPERTIES,
getter_AddRefs(brandBundle));
NS_ENSURE_SUCCESS(rv, rv);
nsAutoString brandShortName;
brandBundle->GetStringFromName("brandShortName", brandShortName);
// use brandShortName as the application id.
NS_ConvertUTF16toUTF8 id(brandShortName);
nsCOMPtr<nsIGIOMimeApp> appInfo;
rv = giovfs->FindAppFromCommand(mAppPath, getter_AddRefs(appInfo));
if (NS_FAILED(rv)) {
// Application was not found in the list of installed applications
// provided by OS. Fallback to create appInfo from command and name.
rv = giovfs->CreateAppFromCommand(mAppPath, id, getter_AddRefs(appInfo));
NS_ENSURE_SUCCESS(rv, rv);
}
// set handler for the protocols
for (unsigned int i = 0; i < ArrayLength(appProtocols); ++i) {
appInfo->SetAsDefaultForURIScheme(
nsDependentCString(appProtocols[i].name));
}
// set handler for .html and xhtml files and MIME types:
// Add mime types for html, xhtml extension and set app to just created
// appinfo.
for (unsigned int i = 0; i < ArrayLength(appTypes); ++i) {
appInfo->SetAsDefaultForMimeType(
nsDependentCString(appTypes[i].mimeType));
appInfo->SetAsDefaultForFileExtensions(
nsDependentCString(appTypes[i].extensions));
}
}
nsCOMPtr<nsIPrefBranch> prefs(do_GetService(NS_PREFSERVICE_CONTRACTID));
if (prefs) {
(void)prefs->SetBoolPref(PREF_CHECKDEFAULTBROWSER, true);
// Reset the number of times the dialog should be shown
// before it is silenced.
(void)prefs->SetIntPref(PREF_DEFAULTBROWSERCHECKCOUNT, 0);
}
return NS_OK;
}
NS_IMETHODIMP
nsGNOMEShellService::GetCanSetDesktopBackground(bool* aResult) {
// setting desktop background is currently only supported
// for Gnome or desktops using the same GSettings keys
if (widget::IsGnomeDesktopEnvironment()) {
*aResult = true;
return NS_OK;
}
*aResult = !!getenv("GNOME_DESKTOP_SESSION_ID");
return NS_OK;
}
static nsresult WriteImage(const nsCString& aPath, imgIContainer* aImage) {
RefPtr<GdkPixbuf> pixbuf = nsImageToPixbuf::ImageToPixbuf(aImage);
if (!pixbuf) {
return NS_ERROR_NOT_AVAILABLE;
}
gboolean res = gdk_pixbuf_save(pixbuf, aPath.get(), "png", nullptr, nullptr);
return res ? NS_OK : NS_ERROR_FAILURE;
}
NS_IMETHODIMP
nsGNOMEShellService::SetDesktopBackground(dom::Element* aElement,
int32_t aPosition,
const nsACString& aImageName) {
nsCOMPtr<nsIImageLoadingContent> imageContent = do_QueryInterface(aElement);
if (!imageContent) {
return NS_ERROR_FAILURE;
}
// get the image container
nsCOMPtr<imgIRequest> request;
imageContent->GetRequest(nsIImageLoadingContent::CURRENT_REQUEST,
getter_AddRefs(request));
if (!request) {
return NS_ERROR_FAILURE;
}
nsCOMPtr<imgIContainer> container;
request->GetImage(getter_AddRefs(container));
if (!container) {
return NS_ERROR_FAILURE;
}
// Set desktop wallpaper filling style
nsAutoCString options;
if (aPosition == BACKGROUND_TILE)
options.AssignLiteral("wallpaper");
else if (aPosition == BACKGROUND_STRETCH)
options.AssignLiteral("stretched");
else if (aPosition == BACKGROUND_FILL)
options.AssignLiteral("zoom");
else if (aPosition == BACKGROUND_FIT)
options.AssignLiteral("scaled");
else if (aPosition == BACKGROUND_SPAN)
options.AssignLiteral("spanned");
else
options.AssignLiteral("centered");
// Write the background file to the home directory.
nsAutoCString filePath(PR_GetEnv("HOME"));
nsAutoString brandName;
// get the product brand name from localized strings
if (nsCOMPtr<nsIStringBundleService> bundleService =
components::StringBundle::Service()) {
nsCOMPtr<nsIStringBundle> brandBundle;
bundleService->CreateBundle(BRAND_PROPERTIES, getter_AddRefs(brandBundle));
if (bundleService) {
brandBundle->GetStringFromName("brandShortName", brandName);
}
}
// build the file name
filePath.Append('/');
filePath.Append(NS_ConvertUTF16toUTF8(brandName));
filePath.AppendLiteral("_wallpaper.png");
// write the image to a file in the home dir
MOZ_TRY(WriteImage(filePath, container));
nsCOMPtr<nsIGSettingsService> gsettings =
do_GetService(NS_GSETTINGSSERVICE_CONTRACTID);
if (!gsettings) {
return NS_ERROR_FAILURE;
}
nsCOMPtr<nsIGSettingsCollection> backgroundSettings;
gsettings->GetCollectionForSchema(kDesktopBGSchema,
getter_AddRefs(backgroundSettings));
if (!backgroundSettings) {
return NS_ERROR_FAILURE;
}
GUniquePtr<gchar> fileURI(
g_filename_to_uri(filePath.get(), nullptr, nullptr));
if (!fileURI) {
return NS_ERROR_FAILURE;
}
backgroundSettings->SetString("picture-options"_ns, options);
backgroundSettings->SetString("picture-uri"_ns,
nsDependentCString(fileURI.get()));
backgroundSettings->SetString("picture-uri-dark"_ns,
nsDependentCString(fileURI.get()));
backgroundSettings->SetBoolean("draw-background"_ns, true);
return NS_OK;
}
#define COLOR_16_TO_8_BIT(_c) ((_c) >> 8)
#define COLOR_8_TO_16_BIT(_c) ((_c) << 8 | (_c))
NS_IMETHODIMP
nsGNOMEShellService::GetDesktopBackgroundColor(uint32_t* aColor) {
nsCOMPtr<nsIGSettingsService> gsettings =
do_GetService(NS_GSETTINGSSERVICE_CONTRACTID);
nsCOMPtr<nsIGSettingsCollection> background_settings;
nsAutoCString background;
if (gsettings) {
gsettings->GetCollectionForSchema(kDesktopBGSchema,
getter_AddRefs(background_settings));
if (background_settings) {
background_settings->GetString(kDesktopColorGSKey, background);
}
}
if (background.IsEmpty()) {
*aColor = 0;
return NS_OK;
}
GdkColor color;
gboolean success = gdk_color_parse(background.get(), &color);
NS_ENSURE_TRUE(success, NS_ERROR_FAILURE);
*aColor = COLOR_16_TO_8_BIT(color.red) << 16 |
COLOR_16_TO_8_BIT(color.green) << 8 | COLOR_16_TO_8_BIT(color.blue);
return NS_OK;
}
static void ColorToCString(uint32_t aColor, nsCString& aResult) {
// The #rrrrggggbbbb format is used to match gdk_color_to_string()
aResult.SetLength(13);
char* buf = aResult.BeginWriting();
if (!buf) return;
uint16_t red = COLOR_8_TO_16_BIT((aColor >> 16) & 0xff);
uint16_t green = COLOR_8_TO_16_BIT((aColor >> 8) & 0xff);
uint16_t blue = COLOR_8_TO_16_BIT(aColor & 0xff);
snprintf(buf, 14, "#%04x%04x%04x", red, green, blue);
}
NS_IMETHODIMP
nsGNOMEShellService::SetDesktopBackgroundColor(uint32_t aColor) {
NS_ASSERTION(aColor <= 0xffffff, "aColor has extra bits");
nsAutoCString colorString;
ColorToCString(aColor, colorString);
nsCOMPtr<nsIGSettingsService> gsettings =
do_GetService(NS_GSETTINGSSERVICE_CONTRACTID);
if (gsettings) {
nsCOMPtr<nsIGSettingsCollection> background_settings;
gsettings->GetCollectionForSchema(nsLiteralCString(kDesktopBGSchema),
getter_AddRefs(background_settings));
if (background_settings) {
background_settings->SetString(kDesktopColorGSKey, colorString);
return NS_OK;
}
}
return NS_ERROR_FAILURE;
}