From d21447d096a320a08b3efb2b8768fad0dcdcfd64 Mon Sep 17 00:00:00 2001 From: Vincent Sanders Date: Thu, 5 May 2016 22:28:51 +0100 Subject: move frontends into sub directory --- frontends/gtk/tabs.c | 416 +++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 416 insertions(+) create mode 100644 frontends/gtk/tabs.c (limited to 'frontends/gtk/tabs.c') diff --git a/frontends/gtk/tabs.c b/frontends/gtk/tabs.c new file mode 100644 index 000000000..67a410d20 --- /dev/null +++ b/frontends/gtk/tabs.c @@ -0,0 +1,416 @@ +/* + * Copyright 2008 Michael Lester + * + * 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 . + */ + +#include +#include + +#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; +} -- cgit v1.2.3