Desktop
/* $Id: ghtml-gtktextview.c,v 1.21 2010/08/24 23:44:53 khorben Exp $ */
/* Copyright (c) 2010 Pierre Pronchery <khorben@defora.org> */
/* This file is part of DeforaOS Desktop Surfer */
/* This program 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 3 of the License.
*
* This program 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 <stdlib.h>
#include <errno.h>
#include <libintl.h>
#include <System/Parser/XML.h>
#include "ghtml.h"
#include "../config.h"
#include "common/conn.c"
#include "common/history.c"
#include "common/url.c"
#define _(string) gettext(string)
/* private */
/* types */
typedef struct _GHtml
{
Surfer * surfer;
char const * title;
/* history */
GList * history;
GList * current;
/* search */
size_t search;
/* connection */
Conn * conn;
char * buffer;
size_t buffer_cnt;
/* html widget */
GtkWidget * view;
GtkTextBuffer * tbuffer;
} GHtml;
/* prototypes */
static int _ghtml_document_load(GHtml * ghtml, char const * url,
char const * post);
static int _ghtml_stop(GHtml * ghtml);
/* public */
/* functions */
/* ghtml_new */
GtkWidget * ghtml_new(Surfer * surfer)
{
GHtml * ghtml;
GtkWidget * widget;
if((ghtml = malloc(sizeof(*ghtml))) == NULL)
return NULL;
ghtml->surfer = surfer;
ghtml->title = NULL;
ghtml->history = NULL;
ghtml->current = NULL;
ghtml->conn = NULL;
ghtml->buffer = NULL;
ghtml->buffer_cnt = 0;
widget = gtk_scrolled_window_new(NULL, NULL);
g_object_set_data(G_OBJECT(widget), "ghtml", ghtml);
gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(widget),
GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC);
ghtml->view = gtk_text_view_new();
ghtml->tbuffer = gtk_text_view_get_buffer(GTK_TEXT_VIEW(ghtml->view));
gtk_text_view_set_cursor_visible(GTK_TEXT_VIEW(ghtml->view),
FALSE);
gtk_text_view_set_editable(GTK_TEXT_VIEW(ghtml->view), FALSE);
gtk_text_view_set_wrap_mode(GTK_TEXT_VIEW(ghtml->view),
GTK_WRAP_WORD_CHAR);
gtk_container_add(GTK_CONTAINER(widget), ghtml->view);
return widget;
}
/* ghtml_delete */
void ghtml_delete(GtkWidget * widget)
{
GHtml * ghtml;
ghtml = g_object_get_data(G_OBJECT(widget), "ghtml");
free(ghtml->buffer);
if(ghtml->conn != NULL)
_conn_delete(ghtml->conn);
free(ghtml);
}
/* accessors */
/* ghtml_can_go_back */
gboolean ghtml_can_go_back(GtkWidget * widget)
{
GHtml * ghtml;
ghtml = g_object_get_data(G_OBJECT(widget), "ghtml");
return _history_can_go_back(ghtml->current);
}
/* ghtml_can_go_forward */
gboolean ghtml_can_go_forward(GtkWidget * widget)
{
GHtml * ghtml;
ghtml = g_object_get_data(G_OBJECT(widget), "ghtml");
return _history_can_go_forward(ghtml->current);
}
/* ghtml_get_link_message */
char const * ghtml_get_link_message(GtkWidget * widget)
{
/* FIXME implement */
return NULL;
}
/* ghtml_get_location */
char const * ghtml_get_location(GtkWidget * widget)
{
GHtml * ghtml;
ghtml = g_object_get_data(G_OBJECT(widget), "ghtml");
return _history_get_location(ghtml->current);
}
/* ghtml_get_progress */
gdouble ghtml_get_progress(GtkWidget * widget)
{
GHtml * ghtml;
ghtml = g_object_get_data(G_OBJECT(widget), "ghtml");
if(ghtml->conn == NULL)
return -1.0;
return _conn_get_progress(ghtml->conn);
}
/* ghtml_get_source */
char const * ghtml_get_source(GtkWidget * widget)
{
GHtml * ghtml;
ghtml = g_object_get_data(G_OBJECT(widget), "ghtml");
return ghtml->buffer;
}
/* ghtml_get_status */
char const * ghtml_get_status(GtkWidget * widget)
{
GHtml * ghtml;
ghtml = g_object_get_data(G_OBJECT(widget), "ghtml");
if(ghtml->conn == NULL)
return NULL;
return _conn_get_status(ghtml->conn);
}
/* ghtml_get_title */
char const * ghtml_get_title(GtkWidget * widget)
{
GHtml * ghtml;
ghtml = g_object_get_data(G_OBJECT(widget), "ghtml");
return ghtml->title;
}
/* useful */
/* ghtml_execute */
void ghtml_execute(GtkWidget * ghtml, char const * code)
{
/* FIXME implement */
}
/* ghtml_find */
static char const * _find_string(char const * big, char const * little,
gboolean sensitive);
static gboolean _find_match(GHtml * ghtml, char const * buf, char const * str,
size_t tlen);
gboolean ghtml_find(GtkWidget * widget, char const * text, gboolean sensitive,
gboolean wrap)
{
gboolean ret = FALSE;
GHtml * ghtml;
size_t tlen;
GtkTextIter start;
GtkTextIter end;
gchar * buf;
size_t blen;
char const * str;
if(text == NULL || (tlen = strlen(text)) == 0)
return ret;
ghtml = g_object_get_data(G_OBJECT(widget), "ghtml");
/* XXX highly inefficient */
gtk_text_buffer_get_start_iter(ghtml->tbuffer, &start);
gtk_text_buffer_get_end_iter(ghtml->tbuffer, &end);
buf = gtk_text_buffer_get_text(ghtml->tbuffer, &start, &end, FALSE);
if(buf == NULL || (blen = strlen(buf)) == 0)
return ret;
if(ghtml->search >= blen)
ghtml->search = 0;
if((str = _find_string(&buf[ghtml->search], text, sensitive)) != NULL)
ret = _find_match(ghtml, buf, str, tlen);
else if(wrap && ghtml->search != 0) /* wrap around */
{
buf[ghtml->search] = '\0';
if((str = _find_string(buf, text, sensitive)) != NULL)
ret = _find_match(ghtml, buf, str, tlen);
}
g_free(buf);
return ret;
}
static char const * _find_string(char const * big, char const * little,
gboolean sensitive)
{
return sensitive ? strstr(big, little) : strcasestr(big, little);
}
static gboolean _find_match(GHtml * ghtml, char const * buf, char const * str,
size_t tlen)
{
size_t offset;
GtkTextIter start;
GtkTextIter end;
offset = str - buf;
ghtml->search = offset + 1;
gtk_text_buffer_get_iter_at_offset(ghtml->tbuffer, &start, offset);
gtk_text_buffer_get_iter_at_offset(ghtml->tbuffer, &end, offset + tlen);
gtk_text_buffer_select_range(ghtml->tbuffer, &start, &end);
gtk_text_view_scroll_to_iter(GTK_TEXT_VIEW(ghtml->view), &start, 0.0,
FALSE, 0.0, 0.0);
return TRUE;
}
/* ghtml_go_back */
gboolean ghtml_go_back(GtkWidget * ghtml)
{
/* FIXME implement */
return FALSE;
}
/* ghtml_go_forward */
gboolean ghtml_go_forward(GtkWidget * ghtml)
{
/* FIXME implement */
return FALSE;
}
/* ghtml_load_url */
void ghtml_load_url(GtkWidget * widget, char const * url)
{
GHtml * ghtml;
gchar * link;
ghtml = g_object_get_data(G_OBJECT(widget), "ghtml");
if((link = _ghtml_make_url(NULL, url)) != NULL)
url = link;
_ghtml_document_load(ghtml, url, NULL);
g_free(link);
}
/* ghtml_print */
void ghtml_print(GtkWidget * ghtml)
{
/* FIXME implement */
}
/* ghtml_refresh */
void ghtml_refresh(GtkWidget * widget)
{
GHtml * ghtml;
ghtml = g_object_get_data(G_OBJECT(widget), "ghtml");
_ghtml_stop(ghtml);
/* FIXME give ghtml directly, forgets POST */
ghtml_load_url(widget, _history_get_location(ghtml->current));
}
/* ghtml_reload */
void ghtml_reload(GtkWidget * ghtml)
{
ghtml_refresh(ghtml);
}
/* ghtml_stop */
void ghtml_stop(GtkWidget * widget)
{
GHtml * ghtml;
ghtml = g_object_get_data(G_OBJECT(widget), "ghtml");
_ghtml_stop(ghtml);
}
/* ghtml_select_all */
void ghtml_select_all(GtkWidget * widget)
{
GHtml * ghtml;
GtkTextIter start;
GtkTextIter end;
ghtml = g_object_get_data(G_OBJECT(widget), "ghtml");
gtk_text_buffer_get_start_iter(ghtml->tbuffer, &start);
gtk_text_buffer_get_end_iter(ghtml->tbuffer, &end);
gtk_text_buffer_select_range(ghtml->tbuffer, &start, &end);
}
/* ghtml_unselect_all */
void ghtml_unselect_all(GtkWidget * widget)
{
GHtml * ghtml;
GtkTextIter start;
ghtml = g_object_get_data(G_OBJECT(widget), "ghtml");
gtk_text_buffer_get_start_iter(ghtml->tbuffer, &start);
gtk_text_buffer_select_range(ghtml->tbuffer, &start, &start);
}
/* ghtml_zoom_in */
void ghtml_zoom_in(GtkWidget * ghtml)
{
/* FIXME implement */
}
/* ghtml_zoom_out */
void ghtml_zoom_out(GtkWidget * ghtml)
{
/* FIXME implement */
}
/* ghtml_zoom_reset */
void ghtml_zoom_reset(GtkWidget * ghtml)
{
/* FIXME implement */
}
/* functions */
static ssize_t _document_load_write(Conn * conn, char const * buf, size_t size,
gpointer data);
static gboolean _document_load_idle(gpointer data);
static void _document_load_write_node(GHtml * ghtml, XMLNode * node);
static int _ghtml_document_load(GHtml * ghtml, char const * url,
char const * post)
{
History * h;
_ghtml_stop(ghtml);
if((h = _history_new(url, post)) == NULL)
return 1;
ghtml->history = g_list_append(ghtml->history, h);
ghtml->current = g_list_last(ghtml->history);
gtk_text_buffer_set_text(ghtml->tbuffer, "", 0);
free(ghtml->buffer);
ghtml->buffer = NULL;
ghtml->buffer_cnt = 0;
ghtml->search = 0;
surfer_set_location(ghtml->surfer, url);
surfer_set_title(ghtml->surfer, NULL);
if((ghtml->conn = _conn_new(ghtml->surfer, url, post)) == NULL)
return 1;
_conn_set_callback_write(ghtml->conn, _document_load_write, ghtml);
g_idle_add(_document_load_idle, ghtml);
return 0;
}
static ssize_t _document_load_write(Conn * conn, char const * buf, size_t size,
gpointer data)
{
GHtml * ghtml = data;
XML * xml;
XMLDocument * doc;
char * p;
if(size == 0)
{
if((xml = xml_new_string(ghtml->buffer, ghtml->buffer_cnt))
== NULL)
return 0;
if((doc = xml_get_document(xml)) != NULL)
_document_load_write_node(ghtml, doc->root);
xml_delete(xml);
}
if((p = realloc(ghtml->buffer, ghtml->buffer_cnt + size)) == NULL)
return -error_set_code(1, "%s", strerror(errno));
ghtml->buffer = p;
memcpy(&ghtml->buffer[ghtml->buffer_cnt], buf, size);
ghtml->buffer_cnt += size;
return size;
}
static void _document_load_write_node(GHtml * ghtml, XMLNode * node)
{
size_t i;
GtkTextIter iter;
if(node == NULL)
return;
switch(node->type)
{
case XML_NODE_TYPE_DATA:
/* FIXME looks like memory corruption at some point */
gtk_text_buffer_get_end_iter(ghtml->tbuffer, &iter);
gtk_text_buffer_insert(ghtml->tbuffer, &iter,
node->data.buffer, node->data.size);
break;
case XML_NODE_TYPE_TAG:
for(i = 0; i < node->tag.childs_cnt; i++)
_document_load_write_node(ghtml,
node->tag.childs[i]);
break;
}
}
static gboolean _document_load_idle(gpointer data)
{
GHtml * ghtml = data;
if(ghtml->conn != NULL)
_conn_load(ghtml->conn);
return FALSE;
}
/* ghtml_stop */
static int _ghtml_stop(GHtml * ghtml)
{
if(ghtml->conn == NULL)
return 0;
_conn_delete(ghtml->conn);
ghtml->conn = NULL;
return 0;
}