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gecko-dev/browser/components/shell/nsGNOMEShellService.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 "mozilla/ArrayUtils.h"
#include "nsCOMPtr.h"
#include "nsGNOMEShellService.h"
#include "nsShellService.h"
#include "nsIServiceManager.h"
#include "nsIFile.h"
#include "nsIProperties.h"
#include "nsDirectoryServiceDefs.h"
#include "nsIPrefService.h"
#include "prenv.h"
#include "nsStringAPI.h"
#include "nsIGConfService.h"
#include "nsIGIOService.h"
#include "nsIGSettingsService.h"
#include "nsIStringBundle.h"
#include "nsIOutputStream.h"
#include "nsIProcess.h"
#include "nsServiceManagerUtils.h"
#include "nsComponentManagerUtils.h"
#include "nsIDOMHTMLImageElement.h"
#include "nsIImageLoadingContent.h"
#include "imgIRequest.h"
#include "imgIContainer.h"
#include "prprf.h"
#if defined(MOZ_WIDGET_GTK)
#include "nsIImageToPixbuf.h"
#endif
#include "nsXULAppAPI.h"
#include <glib.h>
#include <glib-object.h>
#include <gtk/gtk.h>
#include <gdk/gdk.h>
#include <gdk-pixbuf/gdk-pixbuf.h>
#include <limits.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[] = {
{ "http", true },
{ "https", true },
{ "ftp", false },
{ "chrome", false }
};
static const MimeTypeAssociation appTypes[] = {
{ "text/html", "htm html shtml" },
{ "application/xhtml+xml", "xhtml xht" }
};
// GConf registry key constants
#define DG_BACKGROUND "/desktop/gnome/background"
static const char kDesktopImageKey[] = DG_BACKGROUND "/picture_filename";
static const char kDesktopOptionsKey[] = DG_BACKGROUND "/picture_options";
static const char kDesktopDrawBGKey[] = DG_BACKGROUND "/draw_background";
static const char kDesktopColorKey[] = DG_BACKGROUND "/primary_color";
static const char kDesktopBGSchema[] = "org.gnome.desktop.background";
static const char kDesktopImageGSKey[] = "picture-uri";
static const char kDesktopOptionGSKey[] = "picture-options";
static const char kDesktopDrawBGGSKey[] = "draw-background";
static const char kDesktopColorGSKey[] = "primary-color";
nsresult
nsGNOMEShellService::Init()
{
nsresult rv;
// GConf, GSettings or GIO _must_ be available, or we do not allow
// CreateInstance to succeed.
nsCOMPtr<nsIGConfService> gconf = do_GetService(NS_GCONFSERVICE_CONTRACTID);
nsCOMPtr<nsIGIOService> giovfs =
do_GetService(NS_GIOSERVICE_CONTRACTID);
nsCOMPtr<nsIGSettingsService> gsettings =
do_GetService(NS_GSETTINGSSERVICE_CONTRACTID);
if (!gconf && !giovfs && !gsettings)
return NS_ERROR_NOT_AVAILABLE;
// 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, nsIShellService)
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 aStartupCheck,
bool aForAllTypes,
bool* aIsDefaultBrowser)
{
*aIsDefaultBrowser = false;
if (aStartupCheck)
mCheckedThisSession = true;
nsCOMPtr<nsIGConfService> gconf = do_GetService(NS_GCONFSERVICE_CONTRACTID);
nsCOMPtr<nsIGIOService> giovfs = do_GetService(NS_GIOSERVICE_CONTRACTID);
bool enabled;
nsAutoCString handler;
nsCOMPtr<nsIGIOMimeApp> gioApp;
for (unsigned int i = 0; i < ArrayLength(appProtocols); ++i) {
if (!appProtocols[i].essential)
continue;
if (gconf) {
handler.Truncate();
gconf->GetAppForProtocol(nsDependentCString(appProtocols[i].name),
&enabled, handler);
if (!CheckHandlerMatchesAppName(handler) || !enabled)
return NS_OK; // the handler is disabled or set to another app
}
if (giovfs) {
handler.Truncate();
giovfs->GetAppForURIScheme(nsDependentCString(appProtocols[i].name),
getter_AddRefs(gioApp));
if (!gioApp)
return NS_OK;
gioApp->GetCommand(handler);
if (!CheckHandlerMatchesAppName(handler))
return NS_OK; // the handler is set to another app
}
}
*aIsDefaultBrowser = true;
return NS_OK;
}
NS_IMETHODIMP
nsGNOMEShellService::SetDefaultBrowser(bool aClaimAllTypes,
bool aForAllUsers)
{
#ifdef DEBUG
if (aForAllUsers)
NS_WARNING("Setting the default browser for all users is not yet supported");
#endif
nsCOMPtr<nsIGConfService> gconf = do_GetService(NS_GCONFSERVICE_CONTRACTID);
nsCOMPtr<nsIGIOService> giovfs = do_GetService(NS_GIOSERVICE_CONTRACTID);
if (gconf) {
nsAutoCString appKeyValue;
if (mAppIsInPath) {
// mAppPath is in the users path, so use only the basename as the launcher
gchar *tmp = g_path_get_basename(mAppPath.get());
appKeyValue = tmp;
g_free(tmp);
} else {
appKeyValue = mAppPath;
}
appKeyValue.AppendLiteral(" %s");
for (unsigned int i = 0; i < ArrayLength(appProtocols); ++i) {
if (appProtocols[i].essential || aClaimAllTypes) {
gconf->SetAppForProtocol(nsDependentCString(appProtocols[i].name),
appKeyValue);
}
}
}
if (giovfs) {
nsresult rv;
nsCOMPtr<nsIStringBundleService> bundleService =
do_GetService(NS_STRINGBUNDLE_CONTRACTID, &rv);
NS_ENSURE_SUCCESS(rv, rv);
nsCOMPtr<nsIStringBundle> brandBundle;
rv = bundleService->CreateBundle(BRAND_PROPERTIES, getter_AddRefs(brandBundle));
NS_ENSURE_SUCCESS(rv, rv);
nsString brandShortName;
brandBundle->GetStringFromName(MOZ_UTF16("brandShortName"),
getter_Copies(brandShortName));
// use brandShortName as the application id.
NS_ConvertUTF16toUTF8 id(brandShortName);
nsCOMPtr<nsIGIOMimeApp> appInfo;
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) {
if (appProtocols[i].essential || aClaimAllTypes) {
appInfo->SetAsDefaultForURIScheme(nsDependentCString(appProtocols[i].name));
}
}
// set handler for .html and xhtml files and MIME types:
if (aClaimAllTypes) {
// 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);
}
return NS_OK;
}
NS_IMETHODIMP
nsGNOMEShellService::GetShouldCheckDefaultBrowser(bool* aResult)
{
// If we've already checked, the browser has been started and this is a
// new window open, and we don't want to check again.
if (mCheckedThisSession) {
*aResult = false;
return NS_OK;
}
nsresult rv;
nsCOMPtr<nsIPrefBranch> prefs(do_GetService(NS_PREFSERVICE_CONTRACTID, &rv));
if (NS_FAILED(rv)) {
return rv;
}
return prefs->GetBoolPref(PREF_CHECKDEFAULTBROWSER, aResult);
}
NS_IMETHODIMP
nsGNOMEShellService::SetShouldCheckDefaultBrowser(bool aShouldCheck)
{
nsresult rv;
nsCOMPtr<nsIPrefBranch> prefs(do_GetService(NS_PREFSERVICE_CONTRACTID, &rv));
if (NS_FAILED(rv)) {
return rv;
}
return prefs->SetBoolPref(PREF_CHECKDEFAULTBROWSER, aShouldCheck);
}
NS_IMETHODIMP
nsGNOMEShellService::GetCanSetDesktopBackground(bool* aResult)
{
// setting desktop background is currently only supported
// for Gnome or desktops using the same GSettings and GConf keys
const char* gnomeSession = getenv("GNOME_DESKTOP_SESSION_ID");
if (gnomeSession) {
*aResult = true;
} else {
*aResult = false;
}
return NS_OK;
}
static nsresult
WriteImage(const nsCString& aPath, imgIContainer* aImage)
{
#if !defined(MOZ_WIDGET_GTK)
return NS_ERROR_NOT_AVAILABLE;
#else
nsCOMPtr<nsIImageToPixbuf> imgToPixbuf =
do_GetService("@mozilla.org/widget/image-to-gdk-pixbuf;1");
if (!imgToPixbuf)
return NS_ERROR_NOT_AVAILABLE;
GdkPixbuf* pixbuf = imgToPixbuf->ConvertImageToPixbuf(aImage);
if (!pixbuf)
return NS_ERROR_NOT_AVAILABLE;
gboolean res = gdk_pixbuf_save(pixbuf, aPath.get(), "png", nullptr, nullptr);
g_object_unref(pixbuf);
return res ? NS_OK : NS_ERROR_FAILURE;
#endif
}
NS_IMETHODIMP
nsGNOMEShellService::SetDesktopBackground(nsIDOMElement* aElement,
int32_t aPosition)
{
nsresult rv;
nsCOMPtr<nsIImageLoadingContent> imageContent = do_QueryInterface(aElement, &rv);
if (!imageContent) return rv;
// get the image container
nsCOMPtr<imgIRequest> request;
rv = imageContent->GetRequest(nsIImageLoadingContent::CURRENT_REQUEST,
getter_AddRefs(request));
if (!request) return rv;
nsCOMPtr<imgIContainer> container;
rv = request->GetImage(getter_AddRefs(container));
if (!container) return rv;
// 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
options.AssignLiteral("centered");
// Write the background file to the home directory.
nsAutoCString filePath(PR_GetEnv("HOME"));
// get the product brand name from localized strings
nsString brandName;
nsCID bundleCID = NS_STRINGBUNDLESERVICE_CID;
nsCOMPtr<nsIStringBundleService> bundleService(do_GetService(bundleCID));
if (bundleService) {
nsCOMPtr<nsIStringBundle> brandBundle;
rv = bundleService->CreateBundle(BRAND_PROPERTIES,
getter_AddRefs(brandBundle));
if (NS_SUCCEEDED(rv) && brandBundle) {
rv = brandBundle->GetStringFromName(MOZ_UTF16("brandShortName"),
getter_Copies(brandName));
NS_ENSURE_SUCCESS(rv, rv);
}
}
// 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
rv = WriteImage(filePath, container);
NS_ENSURE_SUCCESS(rv, rv);
// Try GSettings first. If we don't have GSettings or the right schema, fall back
// to using GConf instead. Note that if GSettings works ok, the changes get
// mirrored to GConf by the gsettings->gconf bridge in gnome-settings-daemon
nsCOMPtr<nsIGSettingsService> gsettings =
do_GetService(NS_GSETTINGSSERVICE_CONTRACTID);
if (gsettings) {
nsCOMPtr<nsIGSettingsCollection> background_settings;
gsettings->GetCollectionForSchema(
NS_LITERAL_CSTRING(kDesktopBGSchema), getter_AddRefs(background_settings));
if (background_settings) {
gchar *file_uri = g_filename_to_uri(filePath.get(), nullptr, nullptr);
if (!file_uri)
return NS_ERROR_FAILURE;
background_settings->SetString(NS_LITERAL_CSTRING(kDesktopOptionGSKey),
options);
background_settings->SetString(NS_LITERAL_CSTRING(kDesktopImageGSKey),
nsDependentCString(file_uri));
g_free(file_uri);
background_settings->SetBoolean(NS_LITERAL_CSTRING(kDesktopDrawBGGSKey),
true);
return rv;
}
}
// if the file was written successfully, set it as the system wallpaper
nsCOMPtr<nsIGConfService> gconf = do_GetService(NS_GCONFSERVICE_CONTRACTID);
if (gconf) {
gconf->SetString(NS_LITERAL_CSTRING(kDesktopOptionsKey), options);
// Set the image to an empty string first to force a refresh
// (since we could be writing a new image on top of an existing
// Firefox_wallpaper.png and nautilus doesn't monitor the file for changes)
gconf->SetString(NS_LITERAL_CSTRING(kDesktopImageKey),
EmptyCString());
gconf->SetString(NS_LITERAL_CSTRING(kDesktopImageKey), filePath);
gconf->SetBool(NS_LITERAL_CSTRING(kDesktopDrawBGKey), true);
}
return rv;
}
#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(
NS_LITERAL_CSTRING(kDesktopBGSchema), getter_AddRefs(background_settings));
if (background_settings) {
background_settings->GetString(NS_LITERAL_CSTRING(kDesktopColorGSKey),
background);
}
}
if (!background_settings) {
nsCOMPtr<nsIGConfService> gconf = do_GetService(NS_GCONFSERVICE_CONTRACTID);
if (gconf)
gconf->GetString(NS_LITERAL_CSTRING(kDesktopColorKey), 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()
char *buf = aResult.BeginWriting(13);
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);
PR_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(
NS_LITERAL_CSTRING(kDesktopBGSchema), getter_AddRefs(background_settings));
if (background_settings) {
background_settings->SetString(NS_LITERAL_CSTRING(kDesktopColorGSKey),
colorString);
return NS_OK;
}
}
nsCOMPtr<nsIGConfService> gconf = do_GetService(NS_GCONFSERVICE_CONTRACTID);
if (gconf) {
gconf->SetString(NS_LITERAL_CSTRING(kDesktopColorKey), colorString);
}
return NS_OK;
}
NS_IMETHODIMP
nsGNOMEShellService::OpenApplication(int32_t aApplication)
{
nsAutoCString scheme;
if (aApplication == APPLICATION_MAIL)
scheme.AssignLiteral("mailto");
else if (aApplication == APPLICATION_NEWS)
scheme.AssignLiteral("news");
else
return NS_ERROR_NOT_AVAILABLE;
nsCOMPtr<nsIGIOService> giovfs = do_GetService(NS_GIOSERVICE_CONTRACTID);
if (giovfs) {
nsCOMPtr<nsIGIOMimeApp> gioApp;
giovfs->GetAppForURIScheme(scheme, getter_AddRefs(gioApp));
if (gioApp)
return gioApp->Launch(EmptyCString());
}
nsCOMPtr<nsIGConfService> gconf = do_GetService(NS_GCONFSERVICE_CONTRACTID);
if (!gconf)
return NS_ERROR_FAILURE;
bool enabled;
nsAutoCString appCommand;
gconf->GetAppForProtocol(scheme, &enabled, appCommand);
if (!enabled)
return NS_ERROR_FAILURE;
// XXX we don't currently handle launching a terminal window.
// If the handler requires a terminal, bail.
bool requiresTerminal;
gconf->HandlerRequiresTerminal(scheme, &requiresTerminal);
if (requiresTerminal)
return NS_ERROR_FAILURE;
// Perform shell argument expansion
int argc;
char **argv;
if (!g_shell_parse_argv(appCommand.get(), &argc, &argv, nullptr))
return NS_ERROR_FAILURE;
char **newArgv = new char*[argc + 1];
int newArgc = 0;
// Run through the list of arguments. Copy all of them to the new
// argv except for %s, which we skip.
for (int i = 0; i < argc; ++i) {
if (strcmp(argv[i], "%s") != 0)
newArgv[newArgc++] = argv[i];
}
newArgv[newArgc] = nullptr;
gboolean err = g_spawn_async(nullptr, newArgv, nullptr, G_SPAWN_SEARCH_PATH,
nullptr, nullptr, nullptr, nullptr);
g_strfreev(argv);
delete[] newArgv;
return err ? NS_OK : NS_ERROR_FAILURE;
}
NS_IMETHODIMP
nsGNOMEShellService::OpenApplicationWithURI(nsIFile* aApplication, const nsACString& aURI)
{
nsresult rv;
nsCOMPtr<nsIProcess> process =
do_CreateInstance("@mozilla.org/process/util;1", &rv);
if (NS_FAILED(rv))
return rv;
rv = process->Init(aApplication);
if (NS_FAILED(rv))
return rv;
const nsCString spec(aURI);
const char* specStr = spec.get();
return process->Run(false, &specStr, 1);
}
NS_IMETHODIMP
nsGNOMEShellService::GetDefaultFeedReader(nsIFile** _retval)
{
return NS_ERROR_NOT_IMPLEMENTED;
}
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