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https://gitlab.gnome.org/GNOME/gtk.git
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76 lines
2.7 KiB
C
76 lines
2.7 KiB
C
/* Links
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*
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* GtkLabel can show hyperlinks. The default action is to call
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* gtk_show_uri() on their URI, but it is possible to override
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* this with a custom handler.
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*/
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#include <gtk/gtk.h>
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static gboolean
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activate_link (GtkWidget *label,
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const char *uri,
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gpointer data)
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{
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if (g_strcmp0 (uri, "keynav") == 0)
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{
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GtkAlertDialog *dialog;
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dialog = gtk_alert_dialog_new ("Keyboard navigation");
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gtk_alert_dialog_set_detail (dialog,
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"The term ‘keynav’ is a shorthand for "
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"keyboard navigation and refers to the process of using "
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"a program (exclusively) via keyboard input.");
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gtk_alert_dialog_show (dialog, GTK_WINDOW (gtk_widget_get_root (label)));
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g_object_unref (dialog);
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return TRUE;
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}
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return FALSE;
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}
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GtkWidget *
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do_links (GtkWidget *do_widget)
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{
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static GtkWidget *window = NULL;
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GtkWidget *label;
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if (!window)
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{
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window = gtk_window_new ();
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gtk_window_set_display (GTK_WINDOW (window),
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gtk_widget_get_display (do_widget));
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gtk_window_set_title (GTK_WINDOW (window), "Links");
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gtk_window_set_resizable (GTK_WINDOW (window), FALSE);
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g_object_add_weak_pointer (G_OBJECT (window), (gpointer *)&window);
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label = gtk_label_new ("Some <a href=\"http://en.wikipedia.org/wiki/Text\""
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"title=\"plain text\">text</a> may be marked up "
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"as hyperlinks, which can be clicked "
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"or activated via <a href=\"keynav\">keynav</a> "
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"and they work fine with other markup, like when "
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"linking to <a href=\"http://www.flathub.org/\"><b>"
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"<span letter_spacing=\"1024\" underline=\"none\" color=\"pink\" background=\"darkslategray\">Flathub</span>"
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"</b></a>.");
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gtk_label_set_use_markup (GTK_LABEL (label), TRUE);
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gtk_label_set_max_width_chars (GTK_LABEL (label), 40);
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gtk_label_set_wrap (GTK_LABEL (label), TRUE);
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gtk_label_set_wrap_mode (GTK_LABEL (label), PANGO_WRAP_WORD);
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g_signal_connect (label, "activate-link", G_CALLBACK (activate_link), NULL);
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gtk_widget_set_margin_start (label, 20);
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gtk_widget_set_margin_end (label, 20);
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gtk_widget_set_margin_top (label, 20);
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gtk_widget_set_margin_bottom (label, 20);
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gtk_window_set_child (GTK_WINDOW (window), label);
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gtk_widget_show (label);
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}
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if (!gtk_widget_get_visible (window))
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gtk_widget_show (window);
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else
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gtk_window_destroy (GTK_WINDOW (window));
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return window;
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}
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