Desktop
/* $Id: ghtml-gtktextview.c,v 1.13 2010/03/28 15:04:38 khorben Exp $ */
/* Copyright (c) 2010 Pierre Pronchery <khorben@defora.org> */
/* This file is part of DeforaOS Desktop Surfer */
/* Surfer is free software; you can redistribute it and/or modify it under the
* terms of the GNU General Public License version 2 as published by the Free
* Software Foundation.
*
* Surfer 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
* Surfer; if not, write to the Free Software Foundation, Inc., 59 Temple Place,
* Suite 330, Boston, MA 02111-1307 USA */
#include <stdlib.h>
#include "ghtml.h"
#include "../config.h"
#include "common/conn.c"
#include "common/history.c"
#include "common/url.c"
/* private */
/* types */
typedef struct _GHtml
{
Surfer * surfer;
char const * title;
/* history */
GList * history;
GList * current;
/* search */
size_t search;
/* connection */
Conn * conn;
/* html widget */
GtkWidget * view;
GtkTextBuffer * buffer;
} 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;
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->buffer = 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;
}
/* 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_source */
char const * ghtml_get_source(GtkWidget * widget)
{
GHtml * ghtml;
GtkTextIter start;
GtkTextIter end;
ghtml = g_object_get_data(G_OBJECT(widget), "ghtml");
/* FIXME leaks memory and will not always correspond to the source */
gtk_text_buffer_get_start_iter(ghtml->buffer, &start);
gtk_text_buffer_get_end_iter(ghtml->buffer, &end);
return gtk_text_buffer_get_text(ghtml->buffer, &start, &end, FALSE);
}
/* 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_find */
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->buffer, &start);
gtk_text_buffer_get_end_iter(ghtml->buffer, &end);
buf = gtk_text_buffer_get_text(ghtml->buffer, &start, &end, FALSE);
if(buf == NULL || (blen = strlen(buf)) == 0)
return ret;
if(ghtml->search >= blen)
ghtml->search = 0;
if((str = strstr(&buf[ghtml->search], text)) != NULL)
ret = _find_match(ghtml, buf, str, tlen);
else if(wrap && ghtml->search != 0) /* wrap around */
{
buf[ghtml->search] = '\0';
if((str = strstr(buf, text)) != NULL)
ret = _find_match(ghtml, buf, str, tlen);
}
g_free(buf);
return ret;
}
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->buffer, &start, offset);
gtk_text_buffer_get_iter_at_offset(ghtml->buffer, &end, offset + tlen);
gtk_text_buffer_select_range(ghtml->buffer, &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->buffer, &start);
gtk_text_buffer_get_end_iter(ghtml->buffer, &end);
gtk_text_buffer_select_range(ghtml->buffer, &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->buffer, &start);
gtk_text_buffer_select_range(ghtml->buffer, &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, ssize_t size,
gpointer data);
static gboolean _document_load_idle(gpointer data);
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->buffer, "", 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, ssize_t size,
gpointer data)
{
GHtml * ghtml = data;
GtkTextIter iter;
gtk_text_buffer_get_end_iter(ghtml->buffer, &iter);
gtk_text_buffer_insert(ghtml->buffer, &iter, buf, size);
return size;
}
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;
}