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/* this file is part of atril, a mate document viewer
*
* Copyright (C) 2014 Avishkar Gupta
* Based on ev-view.c
*
* Atril 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; either version 2 of the License, or
* (at your option) any later version.
*
* Atril 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 02110-1301, USA.
*/
#include "config.h"
#include <glib/gi18n-lib.h>
#include <gtk/gtk.h>
#if GTK_CHECK_VERSION (3, 0, 0)
#include <webkit2/webkit2.h>
#else
#include <webkit/webkit.h>
#endif
#include "ev-web-view.h"
#include "ev-document-model.h"
#define EV_WEB_VIEW_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), EV_TYPE_WEB_VIEW, EvWebViewClass))
#define EV_IS_WEB_VIEW_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), EV_TYPE_WEB_VIEW))
#define EV_WEB_VIEW_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), EV_TYPE_WEB_VIEW, EvWebViewClass))
struct _EvWebView
{
WebKitWebView web_view;
EvDocument *document;
EvDocumentModel *model;
gint current_page;
gboolean inverted_colors ;
gboolean fullscreen;
};
struct _EvWebViewClass
{
WebKitWebViewClass base_class;
};
G_DEFINE_TYPE (EvWebView, ev_web_view, WEBKIT_TYPE_WEB_VIEW)
/*** Callbacks ***/
static void ev_web_view_change_page (EvWebView *webview,
gint new_page);
static void ev_web_view_page_changed_cb (EvDocumentModel *model,
gint old_page,
gint new_page,
EvWebView *webview);
/*** GObject ***/
#if GTK_CHECK_VERSION (3, 0, 0)
static void ev_view_dispose (GObject *object);
#else
static void ev_web_view_destroy (GtkObject *object);
#endif
static void ev_web_view_class_init (EvWebViewClass *klass);
static void ev_web_view_init (EvWebView *webview);
static void
web_view_update_range_and_current_page (EvWebView *webview)
{
g_return_if_fail(EV_IS_WEB_VIEW(webview));
if (ev_document_get_n_pages (webview->document) <= 0)
return;
ev_document_model_set_page(webview->model, 0);
webview->current_page = 0;
EvPage *webpage = ev_document_get_page(webview->document,0);
webkit_web_view_load_uri(WEBKIT_WEB_VIEW(webview),(gchar*)webpage->backend_page);
}
static void
#if GTK_CHECK_VERSION (3, 0, 0)
ev_web_view_dispose (GObject *object)
#else
ev_web_view_destroy (GtkObject *object)
#endif
{
EvWebView *webview = EV_WEB_VIEW (object);
if (webview->document) {
g_object_unref(webview->document);
webview->document = NULL ;
}
if (webview->model) {
g_object_unref(webview->model);
webview->model = NULL;
};
#if GTK_CHECK_VERSION (3, 0, 0)
G_OBJECT_CLASS (ev_web_view_parent_class)->dispose (object);
#else
GTK_OBJECT_CLASS (ev_web_view_parent_class)->destroy (object);
#endif
}
static void
ev_web_view_class_init (EvWebViewClass *klass)
{
}
static void
ev_web_view_init (EvWebView *webview)
{
gtk_widget_set_can_focus (GTK_WIDGET (webview), TRUE);
#if GTK_CHECK_VERSION (3, 0, 0)
gtk_widget_set_has_window (GTK_WIDGET (webview), TRUE);
#endif
webview->current_page = 0;
webview->fullscreen = FALSE;
}
/*** Callbacks ***/
static void
ev_web_view_change_page (EvWebView *webview,
gint new_page)
{
g_return_if_fail(EV_IS_WEB_VIEW(webview));
EvDocumentClass *klass = EV_DOCUMENT_GET_CLASS(webview->document);
EvPage *page = klass->get_page(webview->document,new_page);
webkit_web_view_load_uri(WEBKIT_WEB_VIEW(webview),(gchar*)page->backend_page);
webview->current_page = new_page;
}
static void
ev_web_view_page_changed_cb (EvDocumentModel *model,
gint old_page,
gint new_page,
EvWebView *webview)
{
if (!webview->document)
return;
if (webview->current_page != new_page) {
ev_web_view_change_page (webview, new_page);
} else {
webkit_web_view_reload (WEBKIT_WEB_VIEW(webview));
}
}
GtkWidget*
ev_web_view_new (void)
{
GtkWidget *webview;
webview = g_object_new (EV_TYPE_WEB_VIEW, NULL);
return webview;
}
static void
ev_web_view_document_changed_cb (EvDocumentModel *model,
GParamSpec *pspec,
EvWebView *webview)
{
g_return_if_fail(EV_IS_WEB_VIEW(webview));
EvDocument *document = ev_document_model_get_document (model);
if (document != webview->document) {
if (webview->document )
g_object_unref(webview->document);
webview->document = document ;
if(webview->document) {
g_object_ref(webview->document);
}
gint current_page = ev_document_model_get_page(model);
if (webview->current_page != current_page) {
ev_web_view_change_page (webview, current_page);
} else {
webkit_web_view_reload (WEBKIT_WEB_VIEW(webview));
}
}
}
static void
ev_web_view_inverted_colors_changed_cb (EvDocumentModel *model,
GParamSpec *pspec,
EvWebView *webview)
{
guint inverted_colors = ev_document_model_get_inverted_colors (model);
inverted_colors = !inverted_colors;
/*TODO*/
}
static void
ev_web_view_fullscreen_changed_cb (EvDocumentModel *model,
GParamSpec *pspec,
EvWebView *webview)
{
gboolean fullscreen = ev_document_model_get_fullscreen (model);
webview->fullscreen = fullscreen;
#if GTK_CHECK_VERSION (3, 0, 0)
WebKitWindowProperties *window_properties =
webkit_web_view_get_window_properties (WEBKIT_WEB_VIEW(webview));
webkit_window_properties_get_fullscreen(window_properties);
/*TODO*/
#else
webkit_web_view_set_view_mode(WEBKIT_WEB_VIEW(webview), WEBKIT_WEB_VIEW_VIEW_MODE_FULLSCREEN);
#endif
}
void
ev_web_view_set_model (EvWebView *webview,
EvDocumentModel *model)
{
g_return_if_fail (EV_IS_WEB_VIEW (webview));
g_return_if_fail (EV_IS_DOCUMENT_MODEL (model));
if (model == webview->model)
return;
if (webview->model) {
g_signal_handlers_disconnect_by_func (webview->model,
ev_web_view_document_changed_cb,
webview);
g_signal_handlers_disconnect_by_func (webview->model,
ev_web_view_page_changed_cb,
webview);
g_object_unref (webview->model);
}
webview->model = g_object_ref (model);
/* Initialize webview from model */
webview->fullscreen = ev_document_model_get_fullscreen (webview->model);
webview->inverted_colors = ev_document_model_get_inverted_colors(webview->model);
ev_web_view_document_changed_cb (webview->model, NULL, webview);
g_signal_connect (webview->model, "notify::document",
G_CALLBACK (ev_web_view_document_changed_cb),
webview);
g_signal_connect (webview->model, "notify::inverted-colors",
G_CALLBACK (ev_web_view_inverted_colors_changed_cb),
webview);
g_signal_connect (webview->model,"page-changed",
G_CALLBACK(ev_web_view_page_changed_cb),
webview);
}
void
ev_web_view_reload_page (EvWebView *webview,
gint page)
{
webkit_web_view_reload (WEBKIT_WEB_VIEW(webview));
}
void
ev_web_view_reload (EvWebView *webview)
{
web_view_update_range_and_current_page (webview);
}
gboolean
ev_web_view_next_page (EvWebView *webview)
{
int page, n_pages;
g_return_val_if_fail (EV_IS_WEB_VIEW (webview), FALSE);
if (!webview->document)
return FALSE;
page = ev_document_model_get_page (webview->model);
n_pages = ev_document_get_n_pages (webview->document);
page = page + 1;
if (page < n_pages) {
ev_document_model_set_page (webview->model, page);
EvPage *webpage = ev_document_get_page(webview->document,page);
webkit_web_view_load_uri(WEBKIT_WEB_VIEW(webview),(gchar*)webpage->backend_page);
return TRUE;
} else if (page == n_pages) {
ev_document_model_set_page (webview->model, page - 1);
EvPage *webpage = ev_document_get_page(webview->document,page);
webkit_web_view_load_uri(WEBKIT_WEB_VIEW(webview),(gchar*)webpage->backend_page);
return TRUE;
} else {
return FALSE;
}
}
gboolean
ev_web_view_previous_page (EvWebView *webview)
{
int page;
g_return_val_if_fail (EV_IS_WEB_VIEW (webview), FALSE);
if (!webview->document)
return FALSE;
page = ev_document_model_get_page (webview->model);
page = page - 1 ;
if (page >= 0) {
ev_document_model_set_page (webview->model, page);
EvPage *webpage = ev_document_get_page(webview->document,page);
webkit_web_view_load_uri(WEBKIT_WEB_VIEW(webview),(gchar*)webpage->backend_page);
return TRUE;
} else if (page == -1) {
ev_document_model_set_page (webview->model, 0);
EvPage *webpage = ev_document_get_page(webview->document,page);
webkit_web_view_load_uri(WEBKIT_WEB_VIEW(webview),(gchar*)webpage->backend_page);
return TRUE;
} else {
return FALSE;
}
}
void
ev_web_view_handle_link(EvWebView *webview,EvLink *link)
{
}
void
ev_web_view_find_next(EvWebView *webview)
{
}
void
ev_web_view_find_previous(EvWebView *webview)
{
}
gboolean
ev_web_view_get_has_selection(EvWebView *webview)
{
return webkit_web_view_has_selection(WEBKIT_WEB_VIEW(webview));
}
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