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Diffstat (limited to 'libview/ev-web-view.c')
| -rw-r--r-- | libview/ev-web-view.c | 873 |
1 files changed, 873 insertions, 0 deletions
diff --git a/libview/ev-web-view.c b/libview/ev-web-view.c new file mode 100644 index 00000000..b42da163 --- /dev/null +++ b/libview/ev-web-view.c @@ -0,0 +1,873 @@ +/* this file is part of atril, a mate document viewer + * + * Copyright (C) 2014 Avishkar Gupta + * Based on ev-view.c, also a part of atril, a mate document viewer. + * + * 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> +#include <stdlib.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" +#include "ev-jobs.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)) + + typedef enum { + EV_WEB_VIEW_FIND_NEXT, + EV_WEB_VIEW_FIND_PREV + } EvWebViewFindDirection; + +typedef struct _SearchParams { + gboolean case_sensitive; + gchar* search_string; + EvWebViewFindDirection direction; + gboolean search_jump; + gint on_result; + guint *results; +}SearchParams; + +struct _EvWebView +{ + WebKitWebView web_view; + EvDocument *document; + EvDocumentModel *model; + gint current_page; + gboolean inverted_stylesheet ; + gboolean fullscreen; + SearchParams *search; +#if GTK_CHECK_VERSION (3, 0, 0) + WebKitFindController *findcontroller; + WebKitFindOptions findoptions; + gdouble zoom_level; +#endif + gchar *hlink; +}; + +struct _EvWebViewClass +{ + WebKitWebViewClass base_class; +}; + +/*** 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 ***/ +static void ev_web_view_dispose (GObject *object); + +static void ev_web_view_finalize (GObject *object); +static void ev_web_view_class_init (EvWebViewClass *klass); +static void ev_web_view_init (EvWebView *webview); + +G_DEFINE_TYPE (EvWebView, ev_web_view, WEBKIT_TYPE_WEB_VIEW) + +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 +ev_web_view_dispose (GObject *object) +{ + 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 (webview->hlink) { + g_free(webview->hlink); + webview->hlink = NULL; + } + + if (webview->search) { + g_free(webview->search); + webview->search = NULL; + } + + G_OBJECT_CLASS (ev_web_view_parent_class)->dispose (object); +} + +static void +ev_web_view_class_init (EvWebViewClass *klass) +{ + G_OBJECT_CLASS(klass)->finalize = ev_web_view_finalize; + G_OBJECT_CLASS(klass)->dispose = ev_web_view_dispose; +} + +static void +ev_web_view_init (EvWebView *webview) +{ + gtk_widget_set_can_focus (GTK_WIDGET (webview), TRUE); + + gtk_widget_set_has_window (GTK_WIDGET (webview), TRUE); + + webview->current_page = 0; + + webview->search = g_new0(SearchParams, 1); + webview->search->search_string = NULL; + + webview->search->on_result = -1 ; + webview->search->results = NULL; + webview->search->search_jump = TRUE ; + + webview->fullscreen = FALSE; + webview->inverted_stylesheet = FALSE; + webview->hlink = NULL; +} + +static void +ev_web_view_finalize (GObject *object) +{ + G_OBJECT_CLASS(ev_web_view_parent_class)->finalize(object); +} + +/*** 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); + + webview->current_page = new_page; + ev_document_model_set_page(webview->model,new_page); +#if GTK_CHECK_VERSION (3, 0, 0) + webkit_find_controller_search_finish(webview->findcontroller); +#else + webkit_web_view_unmark_text_matches (WEBKIT_WEB_VIEW(webview)); +#endif + if (webview->hlink) { + webkit_web_view_load_uri(WEBKIT_WEB_VIEW(webview),(gchar*)webview->hlink); + g_free(webview->hlink); + webview->hlink = NULL; + } + else { + EvPage *page = klass->get_page(webview->document,new_page); + webkit_web_view_load_uri(WEBKIT_WEB_VIEW(webview),(gchar*)page->backend_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); + + #if GTK_CHECK_VERSION (3, 0, 0) + EV_WEB_VIEW(webview)->findcontroller = webkit_web_view_get_find_controller (WEBKIT_WEB_VIEW(webview)); + EV_WEB_VIEW(webview)->findoptions = webkit_find_controller_get_options (EV_WEB_VIEW(webview)->findcontroller); + + EV_WEB_VIEW(webview)->zoom_level = 1.0; + + EV_WEB_VIEW(webview)->findoptions |= WEBKIT_FIND_OPTIONS_NONE; + #endif + + 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); + } + webview->inverted_stylesheet = FALSE; + gint current_page = ev_document_model_get_page(model); + + ev_web_view_change_page (webview, current_page); + + } +} + +static void +ev_web_view_inverted_colors_changed_cb (EvDocumentModel *model, + GParamSpec *pspec, + EvWebView *webview) +{ + EvDocument *document = ev_document_model_get_document(model); + + if (ev_document_model_get_inverted_colors(model) == TRUE) { + if (document == NULL) { + ev_document_model_set_inverted_colors(model,FALSE); + return; + } + if (webview->inverted_stylesheet == FALSE) { + ev_document_check_add_night_sheet(document); + webview->inverted_stylesheet = TRUE; + } + ev_document_toggle_night_mode(document,TRUE); + webkit_web_view_reload(WEBKIT_WEB_VIEW(webview)); + } + else { + if (document != NULL) { + ev_document_toggle_night_mode(document,FALSE); + webkit_web_view_reload(WEBKIT_WEB_VIEW(webview)); + } + } +} + +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->document = ev_document_model_get_document(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); + webview->current_page = 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) +{ + EvLinkAction *action = NULL; + EvLinkDest *dest = NULL; + EvLinkDestType dest_type ; + action = ev_link_get_action(link); + + if (action == NULL) + return; + + dest = ev_link_action_get_dest(action); + + if (dest == NULL) + return; + + dest_type = ev_link_dest_get_dest_type(dest); + + switch(dest_type) { + case EV_LINK_DEST_TYPE_PAGE: { + ev_document_model_set_page(webview->model,ev_link_dest_get_page(dest)); + break; + } + + case EV_LINK_DEST_TYPE_PAGE_LABEL: { + const gchar *text = ev_link_dest_get_page_label (dest); + gint page = atoi(text); + + if (page <= ev_document_get_n_pages(webview->document) && page > 0) { + ev_document_model_set_page(webview->model,page-1); + } + break; + } + case EV_LINK_DEST_TYPE_HLINK: { + const gchar *uri = ev_link_dest_get_named_dest(dest); + ev_document_model_set_page(webview->model,ev_link_dest_get_page(dest)); + webkit_web_view_load_uri(WEBKIT_WEB_VIEW(webview),uri); + break; + + default:return; + } + } +} +/* Searching */ + +#if !GTK_CHECK_VERSION (3, 0, 0) +static void +jump_to_find_result_on_page(EvWebView *webview, + EvWebViewFindDirection direction) +{ + gboolean forward,wrap; + + if (direction == EV_WEB_VIEW_FIND_NEXT) { + forward = TRUE; + wrap = FALSE; + } + else { + forward = FALSE; + wrap = FALSE; + } + + if (webview->search->search_jump) { + wrap = TRUE; + } + webkit_web_view_search_text (WEBKIT_WEB_VIEW(webview), + webview->search->search_string, + webview->search->case_sensitive, + forward, + wrap); + + webview->search->search_jump = FALSE; +} +#endif + +#if GTK_CHECK_VERSION (3, 0, 0) +static void +results_counted_cb(WebKitFindController *findcontroller, + guint match_count, + EvWebView *webview) +{ + if (match_count > 0 && webview->search->on_result < match_count) { + webkit_find_controller_search(findcontroller, + webview->search->search_string, + webview->findoptions, + match_count); + webview->search->search_jump = FALSE; + } +} +#endif +/* + * Jump to find results once we have changed the page in the webview. + */ +#if GTK_CHECK_VERSION (3, 0, 0) +static void +jump_to_find_results(EvWebView *webview, + WebKitLoadEvent load_event, + gpointer data) +#else +static void +jump_to_find_results(EvWebView *webview, + GParamSpec *pspec, + gpointer data) +#endif +{ + #if !GTK_CHECK_VERSION (3, 0, 0) + gint n_results; + gboolean forward ; + gboolean wrap ; + + if (webkit_web_view_get_load_status(WEBKIT_WEB_VIEW(webview)) != WEBKIT_LOAD_FINISHED) { + return; + } +#else + if ( load_event != WEBKIT_LOAD_FINISHED) { + return; + } +#endif + if (!webview->search->search_string) { + return; + } + +#if GTK_CHECK_VERSION (3, 0, 0) + if (webview->search->direction == EV_WEB_VIEW_FIND_NEXT) { + webview->findoptions &= ~WEBKIT_FIND_OPTIONS_BACKWARDS; + webview->findoptions &= ~WEBKIT_FIND_OPTIONS_WRAP_AROUND; + } + else { + webview->findoptions |= WEBKIT_FIND_OPTIONS_BACKWARDS; + webview->findoptions |= WEBKIT_FIND_OPTIONS_WRAP_AROUND; + } + + webkit_find_controller_count_matches (webview->findcontroller, + webview->search->search_string, + webview->findoptions, + G_MAXUINT); +#else + n_results = webkit_web_view_mark_text_matches (WEBKIT_WEB_VIEW(webview), + webview->search->search_string, + webview->search->case_sensitive, + 0); + + ev_web_view_find_set_highlight_search(webview,TRUE); + + if (webview->search->direction == EV_WEB_VIEW_FIND_NEXT) { + forward = TRUE ; + wrap = FALSE; + } + else { + forward = FALSE; + wrap = TRUE ; + } + + if (n_results > 0 && webview->search->on_result < n_results) { + webkit_web_view_search_text (WEBKIT_WEB_VIEW(webview), + webview->search->search_string, + webview->search->case_sensitive, + forward, + wrap); + + webview->search->search_jump = FALSE; + } +#endif + webview->search->search_jump = FALSE; +} + +static gint +ev_web_view_find_get_n_results (EvWebView *webview, gint page) +{ + return webview->search->results[page]; +} + +/** + * jump_to_find_page + * @webview: #EvWebView instance + * @direction: Direction to look + * @shift: Shift from current page + * + * Jumps to the first page that has occurences of searched word. + * Uses a direction where to look and a shift from current page. +**/ +static void +jump_to_find_page (EvWebView *webview, EvWebViewFindDirection direction, gint shift) +{ + int n_pages, i; + + n_pages = ev_document_get_n_pages (webview->document); + + for (i = 0; i < n_pages; i++) { + int page; + + if (direction == EV_WEB_VIEW_FIND_NEXT) + page = webview->current_page + i; + else + page = webview->current_page - i; + page += shift; + + if (page >= n_pages) { + page = page - n_pages; + } else if (page < 0) + page = page + n_pages; + + if (page == webview->current_page && ev_web_view_find_get_n_results(webview,page) > 0) { +#if !GTK_CHECK_VERSION (3, 0, 0) + jump_to_find_result_on_page(webview,EV_WEB_VIEW_FIND_NEXT); +#else + if (direction == EV_WEB_VIEW_FIND_PREV) { + webview->findoptions |= WEBKIT_FIND_OPTIONS_WRAP_AROUND; + webview->findoptions |= WEBKIT_FIND_OPTIONS_BACKWARDS; + } + else { + if (webview->search->search_jump) + webview->findoptions |= WEBKIT_FIND_OPTIONS_WRAP_AROUND; + else + webview->findoptions &= ~WEBKIT_FIND_OPTIONS_WRAP_AROUND; + + webview->findoptions &= ~WEBKIT_FIND_OPTIONS_BACKWARDS; + } + + webkit_find_controller_search (webview->findcontroller, + webview->search->search_string, + webview->findoptions, + /*Highlight all the results.*/ + G_MAXUINT); + webview->search->search_jump = FALSE; +#endif + break; + } + + if (ev_web_view_find_get_n_results (webview, page) > 0) { + webview->search->direction = direction; +#if !GTK_CHECK_VERSION (3, 0, 0) + webkit_web_view_unmark_text_matches (WEBKIT_WEB_VIEW(webview)); +#else + webkit_find_controller_search_finish(webview->findcontroller); +#endif + ev_document_model_set_page (webview->model, page); + break; + } + } +} + +void +ev_web_view_find_changed (EvWebView *webview, guint *results, gchar *text,gboolean case_sensitive) +{ + webview->search->results = results; + webview->search->on_result = 0; + webview->search->search_string = g_strdup(text); + webview->search->case_sensitive = case_sensitive; + if (webview->search->search_jump == TRUE) { +#if GTK_CHECK_VERSION (3, 0, 0) + if (!case_sensitive) { + webview->findoptions |= WEBKIT_FIND_OPTIONS_CASE_INSENSITIVE; + } + else { + webview->findoptions &= ~WEBKIT_FIND_OPTIONS_CASE_INSENSITIVE; + } +#endif + jump_to_find_page (webview, EV_WEB_VIEW_FIND_NEXT, 0); + } +} + +void +ev_web_view_find_next (EvWebView *webview) +{ + gint n_results; + + n_results = ev_web_view_find_get_n_results (webview, webview->current_page); + webview->search->on_result++; + + if (webview->search->on_result >= n_results) { + webview->search->on_result = 0; + jump_to_find_page (webview, EV_WEB_VIEW_FIND_NEXT, 1); + } + else { +#if GTK_CHECK_VERSION (3, 0, 0) + webkit_find_controller_search_next(webview->findcontroller); +#else + jump_to_find_result_on_page (webview, EV_WEB_VIEW_FIND_NEXT); +#endif + } +} + +void +ev_web_view_find_previous (EvWebView *webview) +{ + webview->search->on_result--; + + if (webview->search->on_result < 0) { + jump_to_find_page (webview, EV_WEB_VIEW_FIND_PREV, -1); + webview->search->on_result = MAX (0, ev_web_view_find_get_n_results (webview, webview->current_page) - 1); + } else { +#if GTK_CHECK_VERSION (3, 0, 0) + webkit_find_controller_search_previous(webview->findcontroller); +#else + jump_to_find_result_on_page (webview,EV_WEB_VIEW_FIND_PREV); +#endif + } +} + +void +ev_web_view_find_search_changed (EvWebView *webview) +{ + /* search string has changed, focus on new search result */ +#if !GTK_CHECK_VERSION(3, 0, 0) + webkit_web_view_unmark_text_matches(WEBKIT_WEB_VIEW(webview)); +#endif + if (webview->search->search_string) { + g_free(webview->search->search_string); + webview->search->search_string = NULL; + } +#if GTK_CHECK_VERSION(3, 0, 0) + webkit_find_controller_search_finish(webview->findcontroller); +#endif + + webview->search->search_jump = TRUE; +} + +#if !GTK_CHECK_VERSION (3, 0, 0) +void +ev_web_view_find_set_highlight_search (EvWebView *webview, gboolean value) +{ + webkit_web_view_set_highlight_text_matches (WEBKIT_WEB_VIEW(webview),value); +} +#endif + +void +ev_web_view_find_cancel (EvWebView *webview) +{ +#if GTK_CHECK_VERSION (3, 0, 0) + webkit_find_controller_search_finish (webview->findcontroller); +#else + webkit_web_view_unmark_text_matches(WEBKIT_WEB_VIEW(webview)); + ev_web_view_find_set_highlight_search(webview,FALSE); +#endif +} + + + +void +ev_web_view_set_handler(EvWebView *webview,gboolean visible) +{ + if (visible) { + g_signal_connect(webview, +#if GTK_CHECK_VERSION (3, 0, 0) + "load-changed", +#else + "notify::load-status", +#endif + G_CALLBACK(jump_to_find_results), + NULL); +#if GTK_CHECK_VERSION (3, 0, 0) + g_signal_connect(webview->findcontroller, + "counted-matches", + G_CALLBACK(results_counted_cb), + webview); +#endif + } + else { + g_signal_handlers_disconnect_by_func(webview, + jump_to_find_results, + NULL); +#if GTK_CHECK_VERSION (3, 0, 0) + g_signal_handlers_disconnect_by_func(webview, + results_counted_cb, + NULL); +#endif + } +} + +/* Selection and copying*/ +#if !GTK_CHECK_VERSION (3, 0, 0) +gboolean +ev_web_view_get_has_selection(EvWebView *webview) +{ + return webkit_web_view_has_selection(WEBKIT_WEB_VIEW(webview)); +} +#endif + +void +ev_web_view_select_all(EvWebView *webview) +{ +#if GTK_CHECK_VERSION (3, 0, 0) + webkit_web_view_execute_editing_command(WEBKIT_WEB_VIEW(webview), + WEBKIT_EDITING_COMMAND_SELECT_ALL); +#else + webkit_web_view_select_all(WEBKIT_WEB_VIEW(webview)); +#endif +} + +#if GTK_CHECK_VERSION (3, 0, 0) +static void +copy_text_cb(WebKitWebView *webview, + GAsyncResult *res, + gpointer data) +{ + gboolean okay_to_copy = webkit_web_view_can_execute_editing_command_finish (WEBKIT_WEB_VIEW(webview), + res, + NULL); + + if (okay_to_copy) { + webkit_web_view_execute_editing_command (WEBKIT_WEB_VIEW(webview), + WEBKIT_EDITING_COMMAND_COPY); + } +} +#endif + +void +ev_web_view_copy(EvWebView *webview) +{ +#if !GTK_CHECK_VERSION (3, 0, 0) + /* If for some reason we don't have a selection any longer,best to be safe */ + if (ev_web_view_get_has_selection(webview) == FALSE) + return; + if (webkit_web_view_can_copy_clipboard(WEBKIT_WEB_VIEW(webview))) { + webkit_web_view_copy_clipboard(WEBKIT_WEB_VIEW(webview)); + } +#else + webkit_web_view_can_execute_editing_command(WEBKIT_WEB_VIEW(webview), + WEBKIT_EDITING_COMMAND_COPY, + NULL, + (GAsyncReadyCallback)copy_text_cb, + NULL); + +#endif + +} + +/*Zoom control*/ +gboolean +ev_web_view_zoom_in(EvWebView *webview) +{ +#if GTK_CHECK_VERSION (3, 0, 0) + webkit_web_view_set_zoom_level (WEBKIT_WEB_VIEW(webview), + (webview->zoom_level+= 0.1)); +#else + webkit_web_view_zoom_in(WEBKIT_WEB_VIEW(webview)); +#endif + return TRUE; +} + +gboolean +ev_web_view_zoom_out(EvWebView *webview) +{ +#if GTK_CHECK_VERSION (3, 0, 0) + if (webview->zoom_level == 1) + return FALSE; + + webkit_web_view_set_zoom_level (WEBKIT_WEB_VIEW(webview), + (webview->zoom_level -= 0.1)); +#else + webkit_web_view_zoom_out(WEBKIT_WEB_VIEW(webview)); +#endif + return TRUE; +} + +/** + * ev_web_view_disconnect_handlers + * @webview : #EvWebView instance + * + * This function call will disconnect all model signal handlers from the webview, to ensure smooth operation of the Atril-view. + * Equivalent to function ev_view_disconnect_handlers in ev-view.c + */ +void +ev_web_view_disconnect_handlers(EvWebView *webview) +{ + 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_inverted_colors_changed_cb, + webview); + g_signal_handlers_disconnect_by_func(webview->model, + ev_web_view_page_changed_cb, + webview); +}
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