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-rw-r--r--frontends/gtk/tabs.c416
1 files changed, 416 insertions, 0 deletions
diff --git a/frontends/gtk/tabs.c b/frontends/gtk/tabs.c
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index 000000000..67a410d20
--- /dev/null
+++ b/frontends/gtk/tabs.c
@@ -0,0 +1,416 @@
+/*
+ * Copyright 2008 Michael Lester <element3260@gmail.com>
+ *
+ * This file is part of NetSurf, http://www.netsurf-browser.org/
+ *
+ * NetSurf 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; version 2 of the License.
+ *
+ * NetSurf 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, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <stdint.h>
+#include <string.h>
+
+#include "utils/nsoption.h"
+#include "utils/messages.h"
+#include "desktop/browser.h"
+#include "content/content.h"
+#include "desktop/search.h"
+
+#include "gtk/compat.h"
+#include "gtk/window.h"
+#include "gtk/search.h"
+#include "gtk/tabs.h"
+
+#define TAB_WIDTH_N_CHARS 15
+
+/** callback to update sizes when style-set gtk signal */
+static void nsgtk_tab_update_size(GtkWidget *hbox, GtkStyle *previous_style,
+ GtkWidget *close_button)
+{
+ PangoFontMetrics *metrics;
+ PangoContext *context;
+ int char_width, h, w;
+ GtkStyleContext *style;
+ GtkStateFlags state;
+
+ state = nsgtk_widget_get_state_flags(hbox);
+ style = nsgtk_widget_get_style_context(hbox);
+
+ context = gtk_widget_get_pango_context(hbox);
+ metrics = pango_context_get_metrics(context,
+ nsgtk_style_context_get_font(style, state),
+ pango_context_get_language(context));
+
+ char_width = pango_font_metrics_get_approximate_digit_width(metrics);
+ pango_font_metrics_unref(metrics);
+
+ nsgtk_icon_size_lookup_for_settings(gtk_widget_get_settings (hbox),
+ GTK_ICON_SIZE_MENU, &w, &h);
+
+ gtk_widget_set_size_request(hbox,
+ TAB_WIDTH_N_CHARS * PANGO_PIXELS(char_width) + 2 * w,
+ -1);
+
+ gtk_widget_set_size_request(close_button, w + 4, h + 4);
+}
+
+/** Create a notebook tab label */
+static GtkWidget *nsgtk_tab_label_setup(struct gui_window *window)
+{
+ GtkWidget *hbox, *label, *button, *close;
+
+ hbox = nsgtk_hbox_new(FALSE, 2);
+
+ label = gtk_label_new(messages_get("NewTab"));
+ gtk_label_set_ellipsize(GTK_LABEL(label), PANGO_ELLIPSIZE_END);
+ gtk_label_set_single_line_mode(GTK_LABEL(label), TRUE);
+ nsgtk_widget_set_alignment(label, GTK_ALIGN_START, GTK_ALIGN_CENTER);
+ nsgtk_widget_set_margins(label, 0, 0);
+ gtk_widget_show(label);
+
+ button = gtk_button_new();
+
+ close = nsgtk_image_new_from_stock(NSGTK_STOCK_CLOSE,
+ GTK_ICON_SIZE_MENU);
+ gtk_container_add(GTK_CONTAINER(button), close);
+ gtk_button_set_focus_on_click(GTK_BUTTON(button), FALSE);
+ gtk_button_set_relief(GTK_BUTTON(button), GTK_RELIEF_NONE);
+ gtk_widget_set_tooltip_text(button, "Close this tab.");
+
+#ifdef FIXME
+ GtkRcStyle *rcstyle;
+ rcstyle = gtk_rc_style_new();
+ rcstyle->xthickness = rcstyle->ythickness = 0;
+ gtk_widget_modify_style(button, rcstyle);
+ g_object_unref(rcstyle);
+#endif
+
+ g_signal_connect_swapped(button, "clicked",
+ G_CALLBACK(nsgtk_window_destroy_browser), window);
+ g_signal_connect(hbox, "style-set",
+ G_CALLBACK(nsgtk_tab_update_size), button);
+
+ gtk_box_pack_start(GTK_BOX(hbox), label, TRUE, TRUE, 0);
+ gtk_box_pack_start(GTK_BOX(hbox), button, FALSE, FALSE, 0);
+
+ g_object_set_data(G_OBJECT(hbox), "label", label);
+ g_object_set_data(G_OBJECT(hbox), "close-button", button);
+
+
+ gtk_widget_show_all(hbox);
+ return hbox;
+}
+#include "utils/log.h"
+
+/** callback when page is switched */
+
+static gint srcpagenum;
+
+/** The switch-page signal handler
+ *
+ * This signal is handled both before and after delivery to work round
+ * issue that setting the selected tab during the switch-page signal
+ * fails
+ */
+static void
+nsgtk_tab_switch_page(GtkNotebook *notebook,
+ GtkWidget *page,
+ guint selpagenum,
+ gpointer user_data)
+{
+ srcpagenum = gtk_notebook_get_current_page(notebook);
+}
+
+static void
+nsgtk_tab_switch_page_after(GtkNotebook *notebook,
+ GtkWidget *selpage,
+ guint selpagenum,
+ gpointer user_data)
+{
+ GtkWidget *srcpage;
+ GtkWidget *addpage;
+ struct gui_window *gw;
+ nserror error;
+
+ addpage = g_object_get_data(G_OBJECT(notebook), "addtab");
+
+ if (selpage == addpage) {
+ if ((srcpagenum != -1) &&
+ (srcpagenum != (gint)selpagenum)) {
+ /* ensure the add tab is not actually selected */
+ LOG("src %d sel %d", srcpagenum, selpagenum);
+ srcpage = gtk_notebook_get_nth_page(notebook, srcpagenum);
+ gw = g_object_get_data(G_OBJECT(srcpage), "gui_window");
+ if ((gw != NULL) && (nsgtk_get_scaffold(gw) != NULL)) {
+ error = nsgtk_scaffolding_new_tab(gw);
+ if (error != NSERROR_OK) {
+ LOG("Failed to open new tab.");
+ }
+ }
+ }
+ } else {
+ LOG("sel %d", selpagenum);
+ /* tab with page in it */
+ gw = g_object_get_data(G_OBJECT(selpage), "gui_window");
+ if (gw != NULL) {
+ nsgtk_scaffolding_set_top_level(gw);
+ }
+ }
+}
+
+static void nsgtk_tab_page_reordered(GtkNotebook *notebook,
+ GtkWidget *child,
+ guint page_num,
+ gpointer user_data)
+{
+ gint pages;
+ GtkWidget *addpage;
+
+ pages = gtk_notebook_get_n_pages(notebook);
+ addpage = g_object_get_data(G_OBJECT(notebook), "addtab");
+
+ if (((gint)page_num == (pages - 1)) &&
+ (child != addpage)) {
+ /* moved tab to end */
+ gtk_notebook_reorder_child(notebook, addpage, -1);
+ }
+}
+
+static void
+nsgtk_tab_orientation(GtkNotebook *notebook)
+{
+ switch (nsoption_int(position_tab)) {
+ case 0:
+ gtk_notebook_set_tab_pos(notebook, GTK_POS_TOP);
+ break;
+
+ case 1:
+ gtk_notebook_set_tab_pos(notebook, GTK_POS_LEFT);
+ break;
+
+ case 2:
+ gtk_notebook_set_tab_pos(notebook, GTK_POS_RIGHT);
+ break;
+
+ case 3:
+ gtk_notebook_set_tab_pos(notebook, GTK_POS_BOTTOM);
+ break;
+
+ }
+}
+
+/** adds a "new tab" tab */
+static GtkWidget *
+nsgtk_tab_add_newtab(GtkNotebook *notebook)
+{
+ GtkWidget *tablabel;
+ GtkWidget *tabcontents;
+ GtkWidget *add;
+
+ tablabel = nsgtk_hbox_new(FALSE, 1);
+ tabcontents = nsgtk_hbox_new(FALSE, 1);
+
+ add = nsgtk_image_new_from_stock(NSGTK_STOCK_ADD, GTK_ICON_SIZE_MENU);
+
+ gtk_box_pack_start(GTK_BOX(tablabel), add, FALSE, FALSE, 0);
+
+ gtk_widget_show_all(tablabel);
+
+ gtk_notebook_append_page(notebook, tabcontents, tablabel);
+
+ gtk_notebook_set_tab_reorderable(notebook, tabcontents, false);
+
+ gtk_widget_show_all(tabcontents);
+
+ g_object_set_data(G_OBJECT(notebook), "addtab", tabcontents);
+
+ return tablabel;
+}
+
+/** callback to alter tab visibility when pages are added or removed */
+static void
+nsgtk_tab_visibility_update(GtkNotebook *notebook, GtkWidget *child, guint page)
+{
+ gint pagec = gtk_notebook_get_n_pages(notebook);
+ GtkWidget *addpage = g_object_get_data(G_OBJECT(notebook), "addtab");
+
+ if (addpage != NULL) {
+ pagec--; /* skip the add tab */
+ if ((gint)page == pagec) {
+ /* ensure the add new tab cannot be current */
+ gtk_notebook_set_current_page(notebook, page - 1);
+ }
+ }
+
+ if ((nsoption_bool(show_single_tab) == true) || (pagec > 1)) {
+ gtk_notebook_set_show_tabs(notebook, TRUE);
+ } else {
+ gtk_notebook_set_show_tabs(notebook, FALSE);
+ }
+}
+
+/* exported interface documented in gtk/tabs.h */
+void nsgtk_tab_options_changed(GtkNotebook *notebook)
+{
+ nsgtk_tab_orientation(notebook);
+ nsgtk_tab_visibility_update(notebook, NULL, 0);
+}
+
+
+/* exported interface documented in gtk/tabs.h */
+void nsgtk_tab_init(struct nsgtk_scaffolding *gs)
+{
+ GtkNotebook *notebook;
+
+ notebook = nsgtk_scaffolding_notebook(gs);
+
+ nsgtk_tab_add_newtab(notebook);
+
+ g_signal_connect(notebook, "switch-page",
+ G_CALLBACK(nsgtk_tab_switch_page), NULL);
+ g_signal_connect_after(notebook, "switch-page",
+ G_CALLBACK(nsgtk_tab_switch_page_after), NULL);
+
+ g_signal_connect(notebook, "page-removed",
+ G_CALLBACK(nsgtk_tab_visibility_update), NULL);
+ g_signal_connect(notebook, "page-added",
+ G_CALLBACK(nsgtk_tab_visibility_update), NULL);
+ g_signal_connect(notebook, "page-reordered",
+ G_CALLBACK(nsgtk_tab_page_reordered), NULL);
+
+
+ nsgtk_tab_options_changed(notebook);
+}
+
+/* exported interface documented in gtk/tabs.h */
+void nsgtk_tab_add(struct gui_window *gw,
+ GtkWidget *tab_contents,
+ bool background)
+{
+ GtkNotebook *notebook;
+ GtkWidget *tabBox;
+ gint remember;
+ gint pages;
+ gint newpage;
+
+ g_object_set_data(G_OBJECT(tab_contents), "gui_window", gw);
+
+ notebook = nsgtk_scaffolding_notebook(nsgtk_get_scaffold(gw));
+
+ tabBox = nsgtk_tab_label_setup(gw);
+
+ nsgtk_window_set_tab(gw, tabBox);
+
+ remember = gtk_notebook_get_current_page(notebook);
+
+ pages = gtk_notebook_get_n_pages(notebook);
+
+ newpage = gtk_notebook_insert_page(notebook, tab_contents, tabBox, pages - 1);
+
+ gtk_notebook_set_tab_reorderable(notebook, tab_contents, true);
+
+ gtk_widget_show_all(tab_contents);
+
+ if (background) {
+ gtk_notebook_set_current_page(notebook, remember);
+ } else {
+ gtk_notebook_set_current_page(notebook, newpage);
+ }
+
+ gtk_widget_grab_focus(GTK_WIDGET(nsgtk_scaffolding_urlbar(
+ nsgtk_get_scaffold(gw))));
+}
+
+/* exported interface documented in gtk/tabs.h */
+void nsgtk_tab_set_title(struct gui_window *g, const char *title)
+{
+ GtkWidget *label;
+ GtkWidget *tab;
+
+ tab = nsgtk_window_get_tab(g);
+ if (tab == NULL) {
+ return;
+ }
+
+ label = g_object_get_data(G_OBJECT(tab), "label");
+ gtk_label_set_text(GTK_LABEL(label), title);
+ gtk_widget_set_tooltip_text(tab, title);
+}
+
+/* exported interface documented in gtk/tabs.h */
+nserror nsgtk_tab_close_current(GtkNotebook *notebook)
+{
+ gint pagen;
+ GtkWidget *page;
+ struct gui_window *gw;
+ GtkWidget *addpage;
+
+ pagen = gtk_notebook_get_current_page(notebook);
+ if (pagen == -1) {
+ return NSERROR_OK;
+ }
+
+ page = gtk_notebook_get_nth_page(notebook, pagen);
+ if (page == NULL) {
+ return NSERROR_OK;
+ }
+
+ addpage = g_object_get_data(G_OBJECT(notebook), "addtab");
+ if (page == addpage) {
+ /* the add new tab page is current, cannot close that */
+ return NSERROR_OK;
+ }
+
+ gw = g_object_get_data(G_OBJECT(page), "gui_window");
+ if (gw == NULL) {
+ return NSERROR_OK;
+ }
+
+ nsgtk_window_destroy_browser(gw);
+
+ return NSERROR_OK;
+}
+
+nserror nsgtk_tab_prev(GtkNotebook *notebook)
+{
+ gtk_notebook_prev_page(notebook);
+
+ return NSERROR_OK;
+
+}
+
+nserror nsgtk_tab_next(GtkNotebook *notebook)
+{
+ gint pagen;
+ GtkWidget *page;
+ GtkWidget *addpage;
+
+ pagen = gtk_notebook_get_current_page(notebook);
+ if (pagen == -1) {
+ return NSERROR_OK;
+ }
+
+ page = gtk_notebook_get_nth_page(notebook, pagen + 1);
+ if (page == NULL) {
+ return NSERROR_OK;
+ }
+
+ addpage = g_object_get_data(G_OBJECT(notebook), "addtab");
+ if (page == addpage) {
+ /* cannot make add new tab page current */
+ return NSERROR_OK;
+ }
+
+ gtk_notebook_set_current_page(notebook, pagen + 1);
+
+ return NSERROR_OK;
+}