pidgin/gtkwebview.h

/**
 * @file gtkwebview.h Wrapper over the Gtk WebKitWebView component
 * @ingroup pidgin
 */

/* Pidgin is the legal property of its developers, whose names are too numerous
 * to list here.  Please refer to the COPYRIGHT file distributed with this
 * source distribution.
 *
 * This program is free software; you can redistribute it and/or modify
 * under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * 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, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02111-1301  USA
 */

#ifndef _PIDGIN_WEBVIEW_H_
#define _PIDGIN_WEBVIEW_H_

#include <glib.h>
#include <gtk/gtk.h>
#include <webkit/webkit.h>

#include "notify.h"

#define GTK_TYPE_WEBVIEW            (gtk_webview_get_type())
#define GTK_WEBVIEW(obj)            (G_TYPE_CHECK_INSTANCE_CAST((obj), GTK_TYPE_WEBVIEW, GtkWebView))
#define GTK_WEBVIEW_CLASS(klass)    (G_TYPE_CHECK_CLASS_CAST((klass), GTK_TYPE_WEBVIEW, GtkWebViewClass))
#define GTK_IS_WEBVIEW(obj)         (G_TYPE_CHECK_INSTANCE_TYPE((obj), GTK_TYPE_WEBVIEW))
#define GTK_IS_IMHTML_CLASS(klass)  (G_TYPE_CHECK_CLASS_TYPE((klass), GTK_TYPE_WEBVIEW))


struct _GtkWebView
{
	WebKitWebView webkit_web_view;

	/*< private >*/
	GHashTable *images; /**< a map from id to temporary file for the image */
	gboolean    empty;  /**< whether anything has been appended **/
	char *script_return; /**< the last value returned from a script **/
};

typedef struct _GtkWebView GtkWebView;

struct _GtkWebViewClass
{
	WebKitWebViewClass parent;
};

typedef struct _GtkWebViewClass GtkWebViewClass;


/**
 * Returns the GType for a GtkWebView widget
 *
 * @return the GType for GtkWebView widget
 */
GType gtk_webview_get_type ();

/**
 * Create a new GtkWebView object
 *
 * @return a GtkWidget corresponding to the GtkWebView object
 */
GtkWidget* gtk_webview_new ();

/**
 * A very basic routine to append html, which can be considered
 * equivalent to a "document.write" using JavaScript.
 *
 * @param webview The GtkWebView object
 * @param markup  The html markup to append
 */
void gtk_webview_append_html (GtkWebView *webview, const char* markup);

/**
 * Rather than use webkit_webview_load_string, this routine
 * parses and displays the <img id=?> tags that make use of the
 * Pidgin imgstore.
 *
 * @param webview The GtkWebView object
 * @param html    The HTML content to load
 */
void gtk_webview_load_html_string_with_imgstore (GtkWebView* webview, const char* html);

/**
 * (To be changed, right now it just tests whether an append has been
 * called since the last clear or since the Widget was created. So it
 * does not test for load_string's called in between.
 *
 * @param webview The GtkWebView object
 * 
 * @return gboolean indicating whether the webview is empty.
 */
gboolean gtk_webview_is_empty (GtkWebView *webview);

/**
 * Executes javascript and returns the answer of the script
 * formatted as string. The return value needs to be freed using
 * g_free. If the return values is not required you may instead
 * use webkit_web_view_execute_script.
 *
 * @param webview The GtkWebView object
 * @param script  The JavaScript to execute
 *
 * @return the return value of the script.
 */
char* gtk_webview_execute_script (GtkWebView *webview, const char *script);

/**
 * Get the current contents of the GtkWebView object.
 *
 * @param webview The GtkWebView object
 *
 * @return a string with the contents. Needs to be g_free'd after use.
 */
char* gtk_webview_get_markup (GtkWebView *webview);

/**
 * Returns the contents of the GtkWebView object, stripped of markups
 *
 * @param webview The GtkWebView object
 *
 * @return a string with the contents. Needs to be g_free'd after use.
 */
char* gtk_webview_get_text (GtkWebView *view);

/**
 * A convenience routine to quote a string for use as a JavaScript 
 * string. For instance, "hello 'world'" becomes "'hello \\'world\\''"
 *
 * @param str The string to escape and quote
 *
 * @return the quoted string.
 */
char* gtk_webview_quote_js_string (const char* str);

#endif /* _PIDGIN_WEBVIEW_H_ */