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Diffstat (limited to 'libview/ev-web-view.c')
| -rw-r--r-- | libview/ev-web-view.c | 349 |
1 files changed, 349 insertions, 0 deletions
diff --git a/libview/ev-web-view.c b/libview/ev-web-view.c new file mode 100644 index 00000000..96fb6c46 --- /dev/null +++ b/libview/ev-web-view.c @@ -0,0 +1,349 @@ +/* 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; + } + WebKitWebViewClass *klass = WEBKIT_WEB_VIEW_GET_CLASS(webview); + +#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 (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); + return TRUE; + } else if (page == n_pages) { + ev_document_model_set_page (webview->model, page - 1); + 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); + return TRUE; + } else if (page == -1) { + ev_document_model_set_page (webview->model, 0); + 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) +{ + +} |