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WebSurf/frontends/gtk/gui.c

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/*
* Copyright 2004-2010 James Bursa <bursa@users.sourceforge.net>
* Copyright 2010-2016 Vincent Sanders <vince@netsurf-browser.org>
* Copyright 2004-2009 John-Mark Bell <jmb@netsurf-browser.org>
* Copyright 2009 Paul Blokus <paul_pl@users.sourceforge.net>
* Copyright 2006-2009 Daniel Silverstone <dsilvers@netsurf-browser.org>
* Copyright 2006-2008 Rob Kendrick <rjek@netsurf-browser.org>
* Copyright 2008 John Tytgat <joty@netsurf-browser.org>
* Copyright 2008 Adam Blokus <adamblokus@gmail.com>
*
* This file is part of NetSurf, http://www.netsurf-browser.org/
*
* NetSurf is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License.
*
* NetSurf is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <assert.h>
#include <stdbool.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <gtk/gtk.h>
#include "utils/filepath.h"
#include "utils/log.h"
#include "utils/messages.h"
#include "utils/utils.h"
#include "utils/file.h"
#include "utils/nsoption.h"
#include "content/fetchers.h"
#include "content/hlcache.h"
#include "content/urldb.h"
#include "content/backing_store.h"
#include "desktop/browser.h"
#include "desktop/save_complete.h"
#include "desktop/save_pdf.h"
#include "desktop/searchweb.h"
#include "desktop/textinput.h"
#include "desktop/tree.h"
#include "netsurf/misc.h"
#include "netsurf/netsurf.h"
#include "gtk/compat.h"
#include "gtk/warn.h"
#include "gtk/completion.h"
#include "gtk/cookies.h"
#include "gtk/download.h"
#include "gtk/fetch.h"
#include "gtk/gui.h"
#include "gtk/history.h"
#include "gtk/hotlist.h"
#include "gtk/throbber.h"
#include "gtk/treeview.h"
#include "gtk/scaffolding.h"
#include "gtk/window.h"
#include "gtk/schedule.h"
#include "gtk/selection.h"
#include "gtk/search.h"
#include "gtk/ssl_cert.h"
#include "gtk/bitmap.h"
#include "gtk/resources.h"
#include "gtk/login.h"
#include "gtk/layout_pango.h"
bool nsgtk_complete = false;
char *nsgtk_config_home; /* exported global defined in gtk/gui.h */
GdkPixbuf *favicon_pixbuf; /** favicon default pixbuf */
GdkPixbuf *win_default_icon_pixbuf; /** default window icon pixbuf */
GdkPixbuf *arrow_down_pixbuf; /** arrow down pixbuf */
GtkBuilder *warning_builder;
char **respaths; /** resource search path vector */
/**
* Cause an abnormal program termination.
*
* \note This never returns and is intended to terminate without any cleanup.
*
* \param error The message to display to the user.
*/
static void die(const char * const error)
{
fprintf(stderr, "%s", error);
exit(EXIT_FAILURE);
}
/**
* Create an array of valid paths to search for resources.
*
* The idea is that all the complex path computation to find resources
* is performed here, once, rather than every time a resource is
* searched for.
*/
static char **
nsgtk_init_resource_path(const char *config_home)
{
char *resource_path;
int resource_path_len;
const gchar * const *langv;
char **pathv; /* resource path string vector */
char **respath; /* resource paths vector */
if (config_home != NULL) {
resource_path_len = snprintf(NULL, 0,
"%s:${NETSURFRES}:%s",
config_home,
GTK_RESPATH);
resource_path = malloc(resource_path_len + 1);
if (resource_path == NULL) {
return NULL;
}
snprintf(resource_path, resource_path_len + 1,
"%s:${NETSURFRES}:%s",
config_home,
GTK_RESPATH);
} else {
resource_path_len = snprintf(NULL, 0,
"${NETSURFRES}:%s",
GTK_RESPATH);
resource_path = malloc(resource_path_len + 1);
if (resource_path == NULL) {
return NULL;
}
snprintf(resource_path,
resource_path_len + 1,
"${NETSURFRES}:%s",
GTK_RESPATH);
}
pathv = filepath_path_to_strvec(resource_path);
langv = g_get_language_names();
respath = filepath_generate(pathv, langv);
filepath_free_strvec(pathv);
free(resource_path);
return respath;
}
/**
* Set option defaults for gtk frontend.
*
* @param defaults The option table to update.
* @return error status.
*/
static nserror set_defaults(struct nsoption_s *defaults)
{
char *fname;
/* cookie file default */
fname = NULL;
netsurf_mkpath(&fname, NULL, 2, nsgtk_config_home, "Cookies");
if (fname != NULL) {
nsoption_setnull_charp(cookie_file, fname);
}
/* cookie jar default */
fname = NULL;
netsurf_mkpath(&fname, NULL, 2, nsgtk_config_home, "Cookies");
if (fname != NULL) {
nsoption_setnull_charp(cookie_jar, fname);
}
/* url database default */
fname = NULL;
netsurf_mkpath(&fname, NULL, 2, nsgtk_config_home, "URLs");
if (fname != NULL) {
nsoption_setnull_charp(url_file, fname);
}
/* bookmark database default */
fname = NULL;
netsurf_mkpath(&fname, NULL, 2, nsgtk_config_home, "Hotlist");
if (fname != NULL) {
nsoption_setnull_charp(hotlist_path, fname);
}
/* download directory default */
fname = getenv("HOME");
if (fname != NULL) {
nsoption_setnull_charp(downloads_directory, strdup(fname));
}
/* default path to certificates */
nsoption_setnull_charp(ca_path, strdup("/etc/ssl/certs"));
if ((nsoption_charp(cookie_file) == NULL) ||
(nsoption_charp(cookie_jar) == NULL) ||
(nsoption_charp(url_file) == NULL) ||
(nsoption_charp(hotlist_path) == NULL) ||
(nsoption_charp(downloads_directory) == NULL) ||
(nsoption_charp(ca_path) == NULL)) {
LOG("Failed initialising default resource paths");
return NSERROR_BAD_PARAMETER;
}
/* set default font names */
nsoption_set_charp(font_sans, strdup("Sans"));
nsoption_set_charp(font_serif, strdup("Serif"));
nsoption_set_charp(font_mono, strdup("Monospace"));
nsoption_set_charp(font_cursive, strdup("Serif"));
nsoption_set_charp(font_fantasy, strdup("Serif"));
return NSERROR_OK;
}
/**
* Initialize GTK interface.
*/
static nserror nsgtk_init(int argc, char** argv, char **respath)
{
char buf[PATH_MAX];
char *resource_filename;
char *addr = NULL;
nsurl *url;
nserror error;
error = nsgtk_builder_new_from_resname("warning", &warning_builder);
if (error != NSERROR_OK) {
LOG("Unable to initialise warning dialog");
return error;
}
gtk_builder_connect_signals(warning_builder, NULL);
/* set default icon if its available */
error = nsgdk_pixbuf_new_from_resname("netsurf.xpm",
&win_default_icon_pixbuf);
if (error == NSERROR_OK) {
LOG("Seting default window icon");
gtk_window_set_default_icon(win_default_icon_pixbuf);
}
/* Search engine sources */
resource_filename = filepath_find(respath, "SearchEngines");
search_web_init(resource_filename);
if (resource_filename != NULL) {
LOG("Using '%s' as Search Engines file", resource_filename);
free(resource_filename);
}
/* Default favicon */
error = nsgdk_pixbuf_new_from_resname("favicon.png", &favicon_pixbuf);
if (error != NSERROR_OK) {
favicon_pixbuf = gdk_pixbuf_new(GDK_COLORSPACE_RGB,
false, 8, 16, 16);
}
/* arrow down icon */
error = nsgdk_pixbuf_new_from_resname("arrow_down_8x32.png",
&arrow_down_pixbuf);
if (error != NSERROR_OK) {
arrow_down_pixbuf = gdk_pixbuf_new(GDK_COLORSPACE_RGB,
false, 8, 8, 32);
}
/* initialise throbber */
error = nsgtk_throbber_init();
if (error != NSERROR_OK) {
LOG("Unable to initialise throbber.");
return error;
}
/* Initialise completions - cannot fail */
nsgtk_completion_init();
filepath_sfinddef(respath, buf, "mime.types", "/etc/");
gtk_fetch_filetype_init(buf);
save_complete_init();
urldb_load(nsoption_charp(url_file));
urldb_load_cookies(nsoption_charp(cookie_file));
/* The tree view system needs to know the screen's DPI, so we
* find that out here, rather than when we create a first browser
* window.
*/
browser_set_dpi(gdk_screen_get_resolution(gdk_screen_get_default()));
LOG("Set CSS DPI to %d", browser_get_dpi());
/* Initialise top level UI elements */
error = nsgtk_history_init();
if (error != NSERROR_OK) {
LOG("Unable to initialise global history window.");
return error;
}
error = nsgtk_download_init();
if (error != NSERROR_OK) {
LOG("Unable to initialise download window.");
return error;
}
error = nsgtk_cookies_init();
if (error != NSERROR_OK) {
LOG("Unable to initialise cookies window.");
return error;
}
error = nsgtk_hotlist_init();
if (error != NSERROR_OK) {
LOG("Unable to initialise hotlist window.");
return error;
}
/* If there is a url specified on the command line use it */
if (argc > 1) {
struct stat fs;
if (stat(argv[1], &fs) == 0) {
size_t addrlen;
char *rp = realpath(argv[1], NULL);
assert(rp != NULL);
/* calculate file url length including terminator */
addrlen = SLEN("file://") + strlen(rp) + 1;
addr = malloc(addrlen);
assert(addr != NULL);
snprintf(addr, addrlen, "file://%s", rp);
free(rp);
} else {
addr = strdup(argv[1]);
}
}
if (addr != NULL) {
/* managed to set up based on local launch */
} else if (nsoption_charp(homepage_url) != NULL) {
addr = strdup(nsoption_charp(homepage_url));
} else {
addr = strdup(NETSURF_HOMEPAGE);
}
/* create an initial browser window */
error = nsurl_create(addr, &url);
if (error == NSERROR_OK) {
error = browser_window_create(BW_CREATE_HISTORY,
url,
NULL,
NULL,
NULL);
nsurl_unref(url);
}
free(addr);
return error;
}
/**
* Ensures output logging stream is correctly configured
*/
static bool nslog_stream_configure(FILE *fptr)
{
/* set log stream to be non-buffering */
setbuf(fptr, NULL);
return true;
}
/**
* Run the gtk event loop.
*
* The same as the standard gtk_main loop except this ensures active
* FD are added to the gtk poll event set.
*/
static void nsgtk_main(void)
{
fd_set read_fd_set, write_fd_set, exc_fd_set;
int max_fd;
GPollFD *fd_list[1000];
unsigned int fd_count;
while (!nsgtk_complete) {
max_fd = -1;
fd_count = 0;
FD_ZERO(&read_fd_set);
FD_ZERO(&write_fd_set);
FD_ZERO(&exc_fd_set);
fetcher_fdset(&read_fd_set, &write_fd_set, &exc_fd_set, &max_fd);
for (int i = 0; i <= max_fd; i++) {
if (FD_ISSET(i, &read_fd_set)) {
GPollFD *fd = malloc(sizeof *fd);
fd->fd = i;
fd->events = G_IO_IN | G_IO_HUP | G_IO_ERR;
g_main_context_add_poll(0, fd, 0);
fd_list[fd_count++] = fd;
}
if (FD_ISSET(i, &write_fd_set)) {
GPollFD *fd = malloc(sizeof *fd);
fd->fd = i;
fd->events = G_IO_OUT | G_IO_ERR;
g_main_context_add_poll(0, fd, 0);
fd_list[fd_count++] = fd;
}
if (FD_ISSET(i, &exc_fd_set)) {
GPollFD *fd = malloc(sizeof *fd);
fd->fd = i;
fd->events = G_IO_ERR;
g_main_context_add_poll(0, fd, 0);
fd_list[fd_count++] = fd;
}
}
schedule_run();
gtk_main_iteration();
for (unsigned int i = 0; i != fd_count; i++) {
g_main_context_remove_poll(0, fd_list[i]);
free(fd_list[i]);
}
}
}
static void gui_quit(void)
{
LOG("Quitting GUI");
/* Ensure all scaffoldings are destroyed before we go into exit */
nsgtk_download_destroy();
urldb_save_cookies(nsoption_charp(cookie_jar));
urldb_save(nsoption_charp(url_file));
nsgtk_cookies_destroy();
nsgtk_history_destroy();
nsgtk_hotlist_destroy();
free(nsgtk_config_home);
gtk_fetch_filetype_fin();
}
static nserror gui_launch_url(struct nsurl *url)
{
gboolean ok;
GError *error = NULL;
ok = nsgtk_show_uri(NULL, nsurl_access(url), GDK_CURRENT_TIME, &error);
if (ok == TRUE) {
return NSERROR_OK;
}
if (error) {
nsgtk_warning(messages_get("URIOpenError"), error->message);
g_error_free(error);
}
return NSERROR_NO_FETCH_HANDLER;
}
/* exported function documented in gtk/warn.h */
nserror nsgtk_warning(const char *warning, const char *detail)
{
char buf[300]; /* 300 is the size the RISC OS GUI uses */
static GtkWindow *nsgtk_warning_window;
GtkLabel *WarningLabel;
LOG("%s %s", warning, detail ? detail : "");
fflush(stdout);
nsgtk_warning_window = GTK_WINDOW(gtk_builder_get_object(warning_builder, "wndWarning"));
WarningLabel = GTK_LABEL(gtk_builder_get_object(warning_builder,
"labelWarning"));
snprintf(buf, sizeof(buf), "%s %s", messages_get(warning),
detail ? detail : "");
buf[sizeof(buf) - 1] = 0;
gtk_label_set_text(WarningLabel, buf);
gtk_widget_show_all(GTK_WIDGET(nsgtk_warning_window));
return NSERROR_OK;
}
static void nsgtk_PDF_set_pass(GtkButton *w, gpointer data)
{
char **owner_pass = ((void **)data)[0];
char **user_pass = ((void **)data)[1];
GtkWindow *wnd = ((void **)data)[2];
GtkBuilder *password_builder = ((void **)data)[3];
char *path = ((void **)data)[4];
char *op, *op1;
char *up, *up1;
op = strdup(gtk_entry_get_text(
GTK_ENTRY(gtk_builder_get_object(password_builder,
"entryPDFOwnerPassword"))));
op1 = strdup(gtk_entry_get_text(
GTK_ENTRY(gtk_builder_get_object(password_builder,
"entryPDFOwnerPassword1"))));
up = strdup(gtk_entry_get_text(
GTK_ENTRY(gtk_builder_get_object(password_builder,
"entryPDFUserPassword"))));
up1 = strdup(gtk_entry_get_text(
GTK_ENTRY(gtk_builder_get_object(password_builder,
"entryPDFUserPassword1"))));
if (op[0] == '\0') {
gtk_label_set_text(GTK_LABEL(gtk_builder_get_object(password_builder,
"labelInfo")),
"Owner password must be at least 1 character long:");
free(op);
free(up);
} else if (!strcmp(op, up)) {
gtk_label_set_text(GTK_LABEL(gtk_builder_get_object(password_builder,
"labelInfo")),
"User and owner passwords must be different:");
free(op);
free(up);
} else if (!strcmp(op, op1) && !strcmp(up, up1)) {
*owner_pass = op;
if (up[0] == '\0')
free(up);
else
*user_pass = up;
free(data);
gtk_widget_destroy(GTK_WIDGET(wnd));
g_object_unref(G_OBJECT(password_builder));
save_pdf(path);
free(path);
} else {
gtk_label_set_text(GTK_LABEL(gtk_builder_get_object(password_builder,
"labelInfo")), "Passwords not confirmed:");
free(op);
free(up);
}
free(op1);
free(up1);
}
static void nsgtk_PDF_no_pass(GtkButton *w, gpointer data)
{
GtkWindow *wnd = ((void **)data)[2];
GtkBuilder *password_builder = ((void **)data)[3];
char *path = ((void **)data)[4];
free(data);
gtk_widget_destroy(GTK_WIDGET(wnd));
g_object_unref(G_OBJECT(password_builder));
save_pdf(path);
free(path);
}
static void nsgtk_pdf_password(char **owner_pass, char **user_pass, char *path)
{
GtkButton *ok, *no;
GtkWindow *wnd;
void **data;
GtkBuilder *password_builder;
nserror res;
res = nsgtk_builder_new_from_resname("password", &password_builder);
if (res != NSERROR_OK) {
LOG("Password UI builder init failed");
return;
}
gtk_builder_connect_signals(password_builder, NULL);
wnd = GTK_WINDOW(gtk_builder_get_object(password_builder,
"wndPDFPassword"));
data = malloc(5 * sizeof(void *));
*owner_pass = NULL;
*user_pass = NULL;
data[0] = owner_pass;
data[1] = user_pass;
data[2] = wnd;
data[3] = password_builder;
data[4] = path;
ok = GTK_BUTTON(gtk_builder_get_object(password_builder,
"buttonPDFSetPassword"));
no = GTK_BUTTON(gtk_builder_get_object(password_builder,
"buttonPDFNoPassword"));
g_signal_connect(G_OBJECT(ok), "clicked",
G_CALLBACK(nsgtk_PDF_set_pass), (gpointer)data);
g_signal_connect(G_OBJECT(no), "clicked",
G_CALLBACK(nsgtk_PDF_no_pass), (gpointer)data);
gtk_widget_show(GTK_WIDGET(wnd));
}
uint32_t gtk_gui_gdkkey_to_nskey(GdkEventKey *key)
{
/* this function will need to become much more complex to support
* everything that the RISC OS version does. But this will do for
* now. I hope.
*/
switch (key->keyval) {
case GDK_KEY(Tab):
return NS_KEY_TAB;
case GDK_KEY(BackSpace):
if (key->state & GDK_SHIFT_MASK)
return NS_KEY_DELETE_LINE_START;
else
return NS_KEY_DELETE_LEFT;
case GDK_KEY(Delete):
if (key->state & GDK_SHIFT_MASK)
return NS_KEY_DELETE_LINE_END;
else
return NS_KEY_DELETE_RIGHT;
case GDK_KEY(Linefeed): return 13;
case GDK_KEY(Return): return 10;
case GDK_KEY(Left): return NS_KEY_LEFT;
case GDK_KEY(Right): return NS_KEY_RIGHT;
case GDK_KEY(Up): return NS_KEY_UP;
case GDK_KEY(Down): return NS_KEY_DOWN;
case GDK_KEY(Home):
if (key->state & GDK_CONTROL_MASK)
return NS_KEY_TEXT_START;
else
return NS_KEY_LINE_START;
case GDK_KEY(End):
if (key->state & GDK_CONTROL_MASK)
return NS_KEY_TEXT_END;
else
return NS_KEY_LINE_END;
case GDK_KEY(Page_Up):
return NS_KEY_PAGE_UP;
case GDK_KEY(Page_Down):
return NS_KEY_PAGE_DOWN;
case 'a':
if (key->state & GDK_CONTROL_MASK)
return NS_KEY_SELECT_ALL;
return gdk_keyval_to_unicode(key->keyval);
case 'u':
if (key->state & GDK_CONTROL_MASK)
return NS_KEY_DELETE_LINE;
return gdk_keyval_to_unicode(key->keyval);
case 'c':
if (key->state & GDK_CONTROL_MASK)
return NS_KEY_COPY_SELECTION;
return gdk_keyval_to_unicode(key->keyval);
case 'v':
if (key->state & GDK_CONTROL_MASK)
return NS_KEY_PASTE;
return gdk_keyval_to_unicode(key->keyval);
case 'x':
if (key->state & GDK_CONTROL_MASK)
return NS_KEY_CUT_SELECTION;
return gdk_keyval_to_unicode(key->keyval);
case 'Z':
case 'y':
if (key->state & GDK_CONTROL_MASK)
return NS_KEY_REDO;
return gdk_keyval_to_unicode(key->keyval);
case 'z':
if (key->state & GDK_CONTROL_MASK)
return NS_KEY_UNDO;
return gdk_keyval_to_unicode(key->keyval);
case GDK_KEY(Escape):
return NS_KEY_ESCAPE;
/* Modifiers - do nothing for now */
case GDK_KEY(Shift_L):
case GDK_KEY(Shift_R):
case GDK_KEY(Control_L):
case GDK_KEY(Control_R):
case GDK_KEY(Caps_Lock):
case GDK_KEY(Shift_Lock):
case GDK_KEY(Meta_L):
case GDK_KEY(Meta_R):
case GDK_KEY(Alt_L):
case GDK_KEY(Alt_R):
case GDK_KEY(Super_L):
case GDK_KEY(Super_R):
case GDK_KEY(Hyper_L):
case GDK_KEY(Hyper_R):
return 0;
default:
return gdk_keyval_to_unicode(key->keyval);
}
}
/**
* create directory name and check it is acessible and a directory.
*/
static nserror
check_dirname(const char *path, const char *leaf, char **dirname_out)
{
nserror ret;
char *dirname = NULL;
struct stat dirname_stat;
ret = netsurf_mkpath(&dirname, NULL, 2, path, leaf);
if (ret != NSERROR_OK) {
return ret;
}
/* ensure access is possible and the entry is actualy
* a directory.
*/
if (stat(dirname, &dirname_stat) == 0) {
if (S_ISDIR(dirname_stat.st_mode)) {
if (access(dirname, R_OK | W_OK) == 0) {
*dirname_out = dirname;
return NSERROR_OK;
} else {
ret = NSERROR_PERMISSION;
}
} else {
ret = NSERROR_NOT_DIRECTORY;
}
} else {
ret = NSERROR_NOT_FOUND;
}
free(dirname);
return ret;
}
/**
* Get the path to the config directory.
*
* @param config_home_out Path to configuration directory.
* @return NSERROR_OK on sucess and \a config_home_out updated else error code.
*/
static nserror get_config_home(char **config_home_out)
{
nserror ret;
char *home_dir;
char *xdg_config_dir;
char *config_home;
home_dir = getenv("HOME");
/* The old $HOME/.netsurf/ directory should be used if it
* exists and is accessible.
*/
if (home_dir != NULL) {
ret = check_dirname(home_dir, ".netsurf", &config_home);
if (ret == NSERROR_OK) {
LOG("\"%s\"", config_home);
*config_home_out = config_home;
return ret;
}
}
/* $XDG_CONFIG_HOME defines the base directory
* relative to which user specific configuration files
* should be stored.
*/
xdg_config_dir = getenv("XDG_CONFIG_HOME");
if ((xdg_config_dir == NULL) || (*xdg_config_dir == 0)) {
/* If $XDG_CONFIG_HOME is either not set or empty, a
* default equal to $HOME/.config should be used.
*/
/** @todo the meaning of empty is never defined so I
* am assuming it is a zero length string but is it
* supposed to mean "whitespace" and if so what counts
* as whitespace? (are tabs etc. counted or should
* isspace() be used)
*/
/* the HOME envvar is required */
if (home_dir == NULL) {
return NSERROR_NOT_DIRECTORY;
}
ret = check_dirname(home_dir, ".config/netsurf", &config_home);
if (ret != NSERROR_OK) {
return ret;
}
} else {
ret = check_dirname(xdg_config_dir, "netsurf", &config_home);
if (ret != NSERROR_OK) {
return ret;
}
}
LOG("\"%s\"", config_home);
*config_home_out = config_home;
return NSERROR_OK;
}
static nserror create_config_home(char **config_home_out)
{
char *config_home = NULL;
char *home_dir;
char *xdg_config_dir;
nserror ret;
LOG("Attempting to create configuration directory");
/* $XDG_CONFIG_HOME defines the base directory
* relative to which user specific configuration files
* should be stored.
*/
xdg_config_dir = getenv("XDG_CONFIG_HOME");
if ((xdg_config_dir == NULL) || (*xdg_config_dir == 0)) {
home_dir = getenv("HOME");
if ((home_dir == NULL) || (*home_dir == 0)) {
return NSERROR_NOT_DIRECTORY;
}
ret = netsurf_mkpath(&config_home, NULL, 4, home_dir, ".config","netsurf", "/");
if (ret != NSERROR_OK) {
return ret;
}
} else {
ret = netsurf_mkpath(&config_home, NULL, 3, xdg_config_dir, "netsurf", "/");
if (ret != NSERROR_OK) {
return ret;
}
}
/* ensure all elements of path exist (the trailing / is required) */
ret = netsurf_mkdir_all(config_home);
if (ret != NSERROR_OK) {
free(config_home);
return ret;
}
/* strip the trailing separator */
config_home[strlen(config_home) - 1] = 0;
LOG("\"%s\"", config_home);
*config_home_out = config_home;
return NSERROR_OK;
}
/**
* Get the path to the cache directory.
*
* @param cache_home_out Path to cache directory.
* @return NSERROR_OK on sucess and \a cache_home_out updated else error code.
*/
static nserror get_cache_home(char **cache_home_out)
{
nserror ret;
char *xdg_cache_dir;
char *cache_home;
char *home_dir;
/* $XDG_CACHE_HOME defines the base directory relative to
* which user specific non-essential data files should be
* stored.
*/
xdg_cache_dir = getenv("XDG_CACHE_HOME");
if ((xdg_cache_dir == NULL) || (*xdg_cache_dir == 0)) {
/* If $XDG_CACHE_HOME is either not set or empty, a
* default equal to $HOME/.cache should be used.
*/
home_dir = getenv("HOME");
/* the HOME envvar is required */
if (home_dir == NULL) {
return NSERROR_NOT_DIRECTORY;
}
ret = check_dirname(home_dir, ".cache/netsurf", &cache_home);
if (ret != NSERROR_OK) {
return ret;
}
} else {
ret = check_dirname(xdg_cache_dir, "netsurf", &cache_home);
if (ret != NSERROR_OK) {
return ret;
}
}
LOG("\"%s\"", cache_home);
*cache_home_out = cache_home;
return NSERROR_OK;
}
static nserror create_cache_home(char **cache_home_out)
{
char *cache_home = NULL;
char *home_dir;
char *xdg_cache_dir;
nserror ret;
LOG("Attempting to create configuration directory");
/* $XDG_CACHE_HOME defines the base directory
* relative to which user specific cache files
* should be stored.
*/
xdg_cache_dir = getenv("XDG_CACHE_HOME");
if ((xdg_cache_dir == NULL) || (*xdg_cache_dir == 0)) {
home_dir = getenv("HOME");
if ((home_dir == NULL) || (*home_dir == 0)) {
return NSERROR_NOT_DIRECTORY;
}
ret = netsurf_mkpath(&cache_home, NULL, 4, home_dir, ".cache", "netsurf", "/");
if (ret != NSERROR_OK) {
return ret;
}
} else {
ret = netsurf_mkpath(&cache_home, NULL, 3, xdg_cache_dir, "netsurf", "/");
if (ret != NSERROR_OK) {
return ret;
}
}
/* ensure all elements of path exist (the trailing / is required) */
ret = netsurf_mkdir_all(cache_home);
if (ret != NSERROR_OK) {
free(cache_home);
return ret;
}
/* strip the trailing separator */
cache_home[strlen(cache_home) - 1] = 0;
LOG("\"%s\"", cache_home);
*cache_home_out = cache_home;
return NSERROR_OK;
}
static nserror nsgtk_option_init(int *pargc, char** argv)
{
nserror ret;
char *choices = NULL;
/* user options setup */
ret = nsoption_init(set_defaults, &nsoptions, &nsoptions_default);
if (ret != NSERROR_OK) {
return ret;
}
/* Attempt to load the user choices */
ret = netsurf_mkpath(&choices, NULL, 2, nsgtk_config_home, "Choices");
if (ret == NSERROR_OK) {
nsoption_read(choices, nsoptions);
free(choices);
}
/* overide loaded options with those from commandline */
nsoption_commandline(pargc, argv, nsoptions);
/* ensure all options fall within sensible bounds */
/* Attempt to handle nonsense status bar widths. These may exist
* in people's Choices as the GTK front end used to abuse the
* status bar width option by using it for an absolute value in px.
* The GTK front end now correctly uses it as a proportion of window
* width. Here we assume that a value of less than 15% is wrong
* and set to the default two thirds. */
if (nsoption_int(toolbar_status_size) < 1500) {
nsoption_set_int(toolbar_status_size, 6667);
}
return NSERROR_OK;
}
static struct gui_misc_table nsgtk_misc_table = {
.schedule = nsgtk_schedule,
.warning = nsgtk_warning,
.quit = gui_quit,
.launch_url = gui_launch_url,
.cert_verify = gtk_cert_verify,
.login = gui_401login_open,
.pdf_password = nsgtk_pdf_password,
};
static nserror nsgtk_messages_init(char **respaths)
{
const char *messages;
nserror ret;
const uint8_t *data;
size_t data_size;
ret = nsgtk_data_from_resname("Messages", &data, &data_size);
if (ret == NSERROR_OK) {
ret = messages_add_from_inline(data, data_size);
} else {
/* Obtain path to messages */
ret = nsgtk_path_from_resname("Messages", &messages);
if (ret == NSERROR_OK) {
ret = messages_add_from_file(messages);
}
}
return ret;
}
/**
* Main entry point from OS.
*/
int main(int argc, char** argv)
{
char *cache_home = NULL;
nserror ret;
struct netsurf_table nsgtk_table = {
.misc = &nsgtk_misc_table,
.window = nsgtk_window_table,
.clipboard = nsgtk_clipboard_table,
.download = nsgtk_download_table,
.fetch = nsgtk_fetch_table,
.llcache = filesystem_llcache_table,
.search = nsgtk_search_table,
.search_web = nsgtk_search_web_table,
.bitmap = nsgtk_bitmap_table,
.layout = nsgtk_layout_table,
};
ret = netsurf_register(&nsgtk_table);
if (ret != NSERROR_OK) {
die("NetSurf operation table failed registration\n");
}
/* Locate the correct user configuration directory path */
ret = get_config_home(&nsgtk_config_home);
if (ret == NSERROR_NOT_FOUND) {
/* no config directory exists yet so try to create one */
ret = create_config_home(&nsgtk_config_home);
}
if (ret != NSERROR_OK) {
LOG("Unable to locate a configuration directory.");
nsgtk_config_home = NULL;
}
/* Initialise gtk */
gtk_init(&argc, &argv);
/* initialise logging. Not fatal if it fails but not much we
* can do about it either.
*/
nslog_init(nslog_stream_configure, &argc, argv);
/* build the common resource path list */
respaths = nsgtk_init_resource_path(nsgtk_config_home);
if (respaths == NULL) {
fprintf(stderr, "Unable to locate resources\n");
return 1;
}
/* initialise the gtk resource handling */
ret = nsgtk_init_resources(respaths);
if (ret != NSERROR_OK) {
fprintf(stderr, "GTK resources failed to initialise (%s)\n",
messages_get_errorcode(ret));
return 1;
}
/* Initialise user options */
ret = nsgtk_option_init(&argc, argv);
if (ret != NSERROR_OK) {
fprintf(stderr, "Options failed to initialise (%s)\n",
messages_get_errorcode(ret));
return 1;
}
/* Initialise translated messages */
ret = nsgtk_messages_init(respaths);
if (ret != NSERROR_OK) {
fprintf(stderr, "Unable to load translated messages (%s)\n",
messages_get_errorcode(ret));
LOG("Unable to load translated messages");
/** \todo decide if message load faliure should be fatal */
}
/* Locate the correct user cache directory path */
ret = get_cache_home(&cache_home);
if (ret == NSERROR_NOT_FOUND) {
/* no cache directory exists yet so try to create one */
ret = create_cache_home(&cache_home);
}
if (ret != NSERROR_OK) {
LOG("Unable to locate a cache directory.");
}
/* core initialisation */
ret = netsurf_init(cache_home);
free(cache_home);
if (ret != NSERROR_OK) {
fprintf(stderr, "NetSurf core failed to initialise (%s)\n",
messages_get_errorcode(ret));
return 1;
}
/* run the browser */
ret = nsgtk_init(argc, argv, respaths);
if (ret != NSERROR_OK) {
fprintf(stderr, "NetSurf gtk initialise failed (%s)\n",
messages_get_errorcode(ret));
} else {
nsgtk_main();
}
/* common finalisation */
netsurf_exit();
/* finalise options */
nsoption_finalise(nsoptions, nsoptions_default);
return 0;
}
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