mirror of
https://github.com/netsurf-browser/netsurf
synced 2024-12-11 15:04:03 +03:00
417 lines
10 KiB
C
417 lines
10 KiB
C
/*
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* Copyright 2008 Michael Lester <element3260@gmail.com>
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*
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* This file is part of NetSurf, http://www.netsurf-browser.org/
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*
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* NetSurf is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 of the License.
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*
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* NetSurf is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <stdint.h>
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#include <string.h>
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#include "utils/nsoption.h"
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#include "utils/messages.h"
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#include "netsurf/browser_window.h"
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#include "desktop/search.h"
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#include "gtk/compat.h"
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#include "gtk/scaffolding.h"
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#include "gtk/window.h"
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#include "gtk/search.h"
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#include "gtk/tabs.h"
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#define TAB_WIDTH_N_CHARS 15
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/** callback to update sizes when style-set gtk signal */
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static void nsgtk_tab_update_size(GtkWidget *hbox, GtkStyle *previous_style,
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GtkWidget *close_button)
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{
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PangoFontMetrics *metrics;
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PangoContext *context;
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int char_width, h, w;
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GtkStyleContext *style;
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GtkStateFlags state;
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state = nsgtk_widget_get_state_flags(hbox);
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style = nsgtk_widget_get_style_context(hbox);
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context = gtk_widget_get_pango_context(hbox);
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metrics = pango_context_get_metrics(context,
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nsgtk_style_context_get_font(style, state),
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pango_context_get_language(context));
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char_width = pango_font_metrics_get_approximate_digit_width(metrics);
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pango_font_metrics_unref(metrics);
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nsgtk_icon_size_lookup_for_settings(gtk_widget_get_settings (hbox),
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GTK_ICON_SIZE_MENU, &w, &h);
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gtk_widget_set_size_request(hbox,
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TAB_WIDTH_N_CHARS * PANGO_PIXELS(char_width) + 2 * w,
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-1);
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gtk_widget_set_size_request(close_button, w + 4, h + 4);
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}
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/** Create a notebook tab label */
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static GtkWidget *nsgtk_tab_label_setup(struct gui_window *window)
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{
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GtkWidget *hbox, *label, *button, *close;
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hbox = nsgtk_hbox_new(FALSE, 2);
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label = gtk_label_new(messages_get("NewTab"));
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gtk_label_set_ellipsize(GTK_LABEL(label), PANGO_ELLIPSIZE_END);
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gtk_label_set_single_line_mode(GTK_LABEL(label), TRUE);
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nsgtk_widget_set_alignment(label, GTK_ALIGN_START, GTK_ALIGN_CENTER);
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nsgtk_widget_set_margins(label, 0, 0);
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gtk_widget_show(label);
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button = gtk_button_new();
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close = nsgtk_image_new_from_stock(NSGTK_STOCK_CLOSE,
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GTK_ICON_SIZE_MENU);
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gtk_container_add(GTK_CONTAINER(button), close);
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gtk_button_set_focus_on_click(GTK_BUTTON(button), FALSE);
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gtk_button_set_relief(GTK_BUTTON(button), GTK_RELIEF_NONE);
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gtk_widget_set_tooltip_text(button, "Close this tab.");
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#ifdef FIXME
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GtkRcStyle *rcstyle;
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rcstyle = gtk_rc_style_new();
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rcstyle->xthickness = rcstyle->ythickness = 0;
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gtk_widget_modify_style(button, rcstyle);
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g_object_unref(rcstyle);
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#endif
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g_signal_connect_swapped(button, "clicked",
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G_CALLBACK(nsgtk_window_destroy_browser), window);
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g_signal_connect(hbox, "style-set",
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G_CALLBACK(nsgtk_tab_update_size), button);
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gtk_box_pack_start(GTK_BOX(hbox), label, TRUE, TRUE, 0);
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gtk_box_pack_start(GTK_BOX(hbox), button, FALSE, FALSE, 0);
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g_object_set_data(G_OBJECT(hbox), "label", label);
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g_object_set_data(G_OBJECT(hbox), "close-button", button);
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gtk_widget_show_all(hbox);
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return hbox;
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}
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#include "utils/log.h"
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/** callback when page is switched */
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static gint srcpagenum;
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/** The switch-page signal handler
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*
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* This signal is handled both before and after delivery to work round
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* issue that setting the selected tab during the switch-page signal
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* fails
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*/
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static void
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nsgtk_tab_switch_page(GtkNotebook *notebook,
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GtkWidget *page,
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guint selpagenum,
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gpointer user_data)
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{
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srcpagenum = gtk_notebook_get_current_page(notebook);
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}
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static void
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nsgtk_tab_switch_page_after(GtkNotebook *notebook,
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GtkWidget *selpage,
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guint selpagenum,
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gpointer user_data)
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{
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GtkWidget *srcpage;
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GtkWidget *addpage;
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struct gui_window *gw;
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nserror error;
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addpage = g_object_get_data(G_OBJECT(notebook), "addtab");
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if (selpage == addpage) {
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if ((srcpagenum != -1) &&
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(srcpagenum != (gint)selpagenum)) {
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/* ensure the add tab is not actually selected */
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LOG("src %d sel %d", srcpagenum, selpagenum);
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srcpage = gtk_notebook_get_nth_page(notebook, srcpagenum);
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gw = g_object_get_data(G_OBJECT(srcpage), "gui_window");
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if ((gw != NULL) && (nsgtk_get_scaffold(gw) != NULL)) {
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error = nsgtk_scaffolding_new_tab(gw);
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if (error != NSERROR_OK) {
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LOG("Failed to open new tab.");
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}
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}
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}
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} else {
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LOG("sel %d", selpagenum);
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/* tab with page in it */
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gw = g_object_get_data(G_OBJECT(selpage), "gui_window");
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if (gw != NULL) {
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nsgtk_scaffolding_set_top_level(gw);
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}
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}
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}
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static void nsgtk_tab_page_reordered(GtkNotebook *notebook,
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GtkWidget *child,
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guint page_num,
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gpointer user_data)
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{
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gint pages;
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GtkWidget *addpage;
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pages = gtk_notebook_get_n_pages(notebook);
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addpage = g_object_get_data(G_OBJECT(notebook), "addtab");
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if (((gint)page_num == (pages - 1)) &&
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(child != addpage)) {
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/* moved tab to end */
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gtk_notebook_reorder_child(notebook, addpage, -1);
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}
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}
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static void
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nsgtk_tab_orientation(GtkNotebook *notebook)
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{
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switch (nsoption_int(position_tab)) {
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case 0:
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gtk_notebook_set_tab_pos(notebook, GTK_POS_TOP);
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break;
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case 1:
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gtk_notebook_set_tab_pos(notebook, GTK_POS_LEFT);
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break;
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case 2:
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gtk_notebook_set_tab_pos(notebook, GTK_POS_RIGHT);
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break;
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case 3:
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gtk_notebook_set_tab_pos(notebook, GTK_POS_BOTTOM);
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break;
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}
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}
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/** adds a "new tab" tab */
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static GtkWidget *
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nsgtk_tab_add_newtab(GtkNotebook *notebook)
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{
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GtkWidget *tablabel;
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GtkWidget *tabcontents;
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GtkWidget *add;
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tablabel = nsgtk_hbox_new(FALSE, 1);
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tabcontents = nsgtk_hbox_new(FALSE, 1);
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add = nsgtk_image_new_from_stock(NSGTK_STOCK_ADD, GTK_ICON_SIZE_MENU);
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gtk_box_pack_start(GTK_BOX(tablabel), add, FALSE, FALSE, 0);
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gtk_widget_show_all(tablabel);
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gtk_notebook_append_page(notebook, tabcontents, tablabel);
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gtk_notebook_set_tab_reorderable(notebook, tabcontents, false);
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gtk_widget_show_all(tabcontents);
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g_object_set_data(G_OBJECT(notebook), "addtab", tabcontents);
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return tablabel;
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}
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/** callback to alter tab visibility when pages are added or removed */
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static void
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nsgtk_tab_visibility_update(GtkNotebook *notebook, GtkWidget *child, guint page)
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{
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gint pagec = gtk_notebook_get_n_pages(notebook);
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GtkWidget *addpage = g_object_get_data(G_OBJECT(notebook), "addtab");
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if (addpage != NULL) {
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pagec--; /* skip the add tab */
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if ((gint)page == pagec) {
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/* ensure the add new tab cannot be current */
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gtk_notebook_set_current_page(notebook, page - 1);
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}
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}
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if ((nsoption_bool(show_single_tab) == true) || (pagec > 1)) {
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gtk_notebook_set_show_tabs(notebook, TRUE);
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} else {
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gtk_notebook_set_show_tabs(notebook, FALSE);
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}
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}
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/* exported interface documented in gtk/tabs.h */
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void nsgtk_tab_options_changed(GtkNotebook *notebook)
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{
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nsgtk_tab_orientation(notebook);
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nsgtk_tab_visibility_update(notebook, NULL, 0);
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}
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/* exported interface documented in gtk/tabs.h */
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void nsgtk_tab_init(struct nsgtk_scaffolding *gs)
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{
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GtkNotebook *notebook;
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notebook = nsgtk_scaffolding_notebook(gs);
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nsgtk_tab_add_newtab(notebook);
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g_signal_connect(notebook, "switch-page",
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G_CALLBACK(nsgtk_tab_switch_page), NULL);
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g_signal_connect_after(notebook, "switch-page",
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G_CALLBACK(nsgtk_tab_switch_page_after), NULL);
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g_signal_connect(notebook, "page-removed",
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G_CALLBACK(nsgtk_tab_visibility_update), NULL);
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g_signal_connect(notebook, "page-added",
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G_CALLBACK(nsgtk_tab_visibility_update), NULL);
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g_signal_connect(notebook, "page-reordered",
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G_CALLBACK(nsgtk_tab_page_reordered), NULL);
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nsgtk_tab_options_changed(notebook);
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}
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/* exported interface documented in gtk/tabs.h */
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void nsgtk_tab_add(struct gui_window *gw,
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GtkWidget *tab_contents,
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bool background)
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{
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GtkNotebook *notebook;
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GtkWidget *tabBox;
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gint remember;
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gint pages;
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gint newpage;
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g_object_set_data(G_OBJECT(tab_contents), "gui_window", gw);
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notebook = nsgtk_scaffolding_notebook(nsgtk_get_scaffold(gw));
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tabBox = nsgtk_tab_label_setup(gw);
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nsgtk_window_set_tab(gw, tabBox);
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remember = gtk_notebook_get_current_page(notebook);
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pages = gtk_notebook_get_n_pages(notebook);
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newpage = gtk_notebook_insert_page(notebook, tab_contents, tabBox, pages - 1);
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gtk_notebook_set_tab_reorderable(notebook, tab_contents, true);
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gtk_widget_show_all(tab_contents);
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if (background) {
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gtk_notebook_set_current_page(notebook, remember);
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} else {
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gtk_notebook_set_current_page(notebook, newpage);
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}
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gtk_widget_grab_focus(GTK_WIDGET(nsgtk_scaffolding_urlbar(
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nsgtk_get_scaffold(gw))));
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}
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/* exported interface documented in gtk/tabs.h */
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void nsgtk_tab_set_title(struct gui_window *g, const char *title)
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{
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GtkWidget *label;
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GtkWidget *tab;
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tab = nsgtk_window_get_tab(g);
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if (tab == NULL) {
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return;
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}
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label = g_object_get_data(G_OBJECT(tab), "label");
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gtk_label_set_text(GTK_LABEL(label), title);
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gtk_widget_set_tooltip_text(tab, title);
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}
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/* exported interface documented in gtk/tabs.h */
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nserror nsgtk_tab_close_current(GtkNotebook *notebook)
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{
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gint pagen;
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GtkWidget *page;
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struct gui_window *gw;
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GtkWidget *addpage;
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pagen = gtk_notebook_get_current_page(notebook);
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if (pagen == -1) {
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return NSERROR_OK;
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}
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page = gtk_notebook_get_nth_page(notebook, pagen);
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if (page == NULL) {
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return NSERROR_OK;
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}
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addpage = g_object_get_data(G_OBJECT(notebook), "addtab");
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if (page == addpage) {
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/* the add new tab page is current, cannot close that */
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return NSERROR_OK;
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}
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gw = g_object_get_data(G_OBJECT(page), "gui_window");
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if (gw == NULL) {
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return NSERROR_OK;
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}
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nsgtk_window_destroy_browser(gw);
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return NSERROR_OK;
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}
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nserror nsgtk_tab_prev(GtkNotebook *notebook)
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{
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gtk_notebook_prev_page(notebook);
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return NSERROR_OK;
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}
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nserror nsgtk_tab_next(GtkNotebook *notebook)
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{
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gint pagen;
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GtkWidget *page;
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GtkWidget *addpage;
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pagen = gtk_notebook_get_current_page(notebook);
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if (pagen == -1) {
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return NSERROR_OK;
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}
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page = gtk_notebook_get_nth_page(notebook, pagen + 1);
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if (page == NULL) {
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return NSERROR_OK;
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}
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addpage = g_object_get_data(G_OBJECT(notebook), "addtab");
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if (page == addpage) {
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/* cannot make add new tab page current */
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return NSERROR_OK;
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}
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gtk_notebook_set_current_page(notebook, pagen + 1);
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return NSERROR_OK;
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}
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