view.c

#include "_cgo_export.h"
#include "view_my.h"
#include <gdk/gdkkeysyms.h>
#include <gtk/gtk.h>
#include <string.h>
#include <webkit2/webkit2.h>

char *view_ui_single =
    "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n"
    "<!-- Generated with glade 3.20.0 -->\n"
    "<interface>\n"
    "  <requires lib=\"gtk+\" version=\"3.18\"/>\n"
    "  <object class=\"GtkWindow\" id=\"main-window\">\n"
    "    <property name=\"can_focus\">False</property>\n"
    "    <property name=\"border_width\">5</property>\n"
    "    <property name=\"title\" translatable=\"yes\">Alpino "
    "Viewer</property>\n"
    "    <property name=\"default_width\">1800</property>\n"
    "    <property name=\"default_height\">1100</property>\n"
    "    <property name=\"icon_name\">face-monkey</property>\n"
    "    <signal name=\"delete-event\" handler=\"delete_event\" "
    "swapped=\"no\"/>\n"
    "    <signal name=\"destroy\" handler=\"destroy\" swapped=\"no\"/>\n"
    "    <child>\n"
    "      <object class=\"GtkBox\" id=\"my-box\">\n"
    "        <property name=\"visible\">True</property>\n"
    "        <property name=\"can_focus\">False</property>\n"
    "        <property name=\"vexpand\">True</property>\n"
    "        <property name=\"orientation\">vertical</property>\n"
    "        <child>\n"
    "          <placeholder/>\n"
    "        </child>\n"
    "      </object>\n"
    "    </child>\n"
    "  </object>\n"
    "</interface>\n";

char *view_ui_multi = "\
<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n\
<!-- Generated with glade 3.40.0 -->\n\
<interface>\n\
  <requires lib=\"gtk+\" version=\"3.18\"/>\n\
  <object class=\"GtkWindow\" id=\"main-window\">\n\
    <property name=\"can-focus\">False</property>\n\
    <property name=\"border-width\">5</property>\n\
    <property name=\"title\" translatable=\"yes\">Alpino Viewer</property>\n\
    <property name=\"default-width\">1600</property>\n\
    <property name=\"default-height\">1000</property>\n\
    <property name=\"icon-name\">face-monkey</property>\n\
    <signal name=\"delete-event\" handler=\"delete_event\" swapped=\"no\"/>\n\
    <signal name=\"destroy\" handler=\"destroy\" swapped=\"no\"/>\n\
    <child>\n\
      <object class=\"GtkPaned\" id=\"panels\">\n\
        <property name=\"visible\">True</property>\n\
        <property name=\"can-focus\">True</property>\n\
        <child>\n\
          <object class=\"GtkScrolledWindow\" id=\"filepanel\">\n\
            <property name=\"visible\">True</property>\n\
            <property name=\"can-focus\">True</property>\n\
            <property name=\"hscrollbar-policy\">never</property>\n\
            <property name=\"shadow-type\">in</property>\n\
            <child>\n\
              <object class=\"GtkTreeView\" id=\"files\">\n\
                <property name=\"visible\">True</property>\n\
                <property name=\"can-focus\">True</property>\n\
                <child internal-child=\"selection\">\n\
                  <object class=\"GtkTreeSelection\" id=\"file\"/>\n\
                </child>\n\
              </object>\n\
            </child>\n\
          </object>\n\
          <packing>\n\
            <property name=\"resize\">False</property>\n\
            <property name=\"shrink\">True</property>\n\
          </packing>\n\
        </child>\n\
        <child>\n\
          <object class=\"GtkBox\" id=\"my-box\">\n\
            <property name=\"visible\">True</property>\n\
            <property name=\"can-focus\">False</property>\n\
            <property name=\"orientation\">vertical</property>\n\
            <child>\n\
              <placeholder/>\n\
            </child>\n\
          </object>\n\
          <packing>\n\
            <property name=\"resize\">True</property>\n\
            <property name=\"shrink\">True</property>\n\
          </packing>\n\
        </child>\n\
      </object>\n\
    </child>\n\
  </object>\n\
</interface>\n";

int nfiles = 0;
char const **filenames = NULL;

WebKitWebView *webview = NULL;
GtkWidget *window = NULL;

G_MODULE_EXPORT void tree_row_activated_cb(GtkTreeView *treeview,
                                           GtkTreePath *path,
                                           GtkTreeViewColumn *column,
                                           gpointer userdata) {
    GtkTreeIter iter;
    GtkTreeModel *model;
    gchar *item;

    model = gtk_tree_view_get_model(treeview);
    if (gtk_tree_model_get_iter(model, &iter, path)) {
        gtk_tree_model_get(model, &iter, 0, &item, -1);

        go_message(idSELECT, item);

        g_free(item);
    }
}

G_MODULE_EXPORT gboolean web_view_key_pressed(WebKitWebView *web_view,
                                              GdkEventKey *event,
                                              gpointer user_data) {

    if (event->keyval == GDK_KEY_q && (event->state & GDK_CONTROL_MASK)) {
        gtk_main_quit();
        return TRUE;
    }
    if (event->keyval == GDK_KEY_minus && (event->state & GDK_CONTROL_MASK)) {
        gdouble lvl;
        lvl = webkit_web_view_get_zoom_level(webview) - .05;
        if (lvl < .2) {
            lvl = .2;
        }
        webkit_web_view_set_zoom_level(webview, lvl);
    }
    if (event->keyval == GDK_KEY_equal && (event->state & GDK_CONTROL_MASK)) {
        gdouble lvl;
        lvl = webkit_web_view_get_zoom_level(webview) + .05;
        if (lvl > 3) {
            lvl = 3;
        }
        webkit_web_view_set_zoom_level(webview, lvl);
    }
    if (event->keyval == GDK_KEY_0 && (event->state & GDK_CONTROL_MASK)) {
        webkit_web_view_set_zoom_level(webview, 1);
    }

    return FALSE;
}

static GtkTreeModel *create_and_fill_model(void) {
    GtkListStore *store = gtk_list_store_new(1, G_TYPE_STRING);

    /* Append a row and fill in some data */
    GtkTreeIter iter;
    for (int i = 0; i < nfiles; i++) {
        gtk_list_store_append(store, &iter);
        gtk_list_store_set(store, &iter, 0, filenames[i], -1);
    }

    return GTK_TREE_MODEL(store);
}

void setnfiles(int n) {
    filenames = (char const **)malloc(n * sizeof(char const *));
}

void addfile(char const *filename) { filenames[nfiles++] = filename; }

void reload(char const *title) {
    gtk_window_set_title(GTK_WINDOW(window), title);
    webkit_web_view_reload(webview);
}

/*
// vanaf glib 2.50
GLogWriterOutput myGLogWriterFunc(GLogLevelFlags log_level,
                                  const GLogField *fields, gsize n_fields,
                                  gpointer user_data) {
    return G_LOG_WRITER_HANDLED;
}
*/

/*
// ouder dan glib 2.50
void myGLogFunc(const gchar *log_domain, GLogLevelFlags log_level,
                const gchar *message, gpointer unused_data) {
    printf("TEST: %s: %s\n", log_domain, message);
}
*/

void run(char const *url, char const *title) {
    static char buf[1000];
    GtkBuilder *builder;
    GError *error = NULL;
    GtkWidget *box, *files;
    WebKitSettings *settings = NULL;

    /*
    // vanaf glib 2.50
    g_log_set_writer_func(myGLogWriterFunc, NULL, NULL);
    */
    /*
    // ouder dan glib 2.50
    g_log_set_default_handler(myGLogFunc, NULL);
    */

    gtk_init(NULL, NULL);

    builder = gtk_builder_new();
    if (!gtk_builder_add_from_string(
            builder, nfiles > 1 ? view_ui_multi : view_ui_single, -1, &error)) {
        g_snprintf(buf, 999, "%s", error->message);
        go_message(idERROR, buf);
        return;
    }
    gtk_builder_connect_signals(builder, NULL);

    window = GTK_WIDGET(gtk_builder_get_object(builder, "main-window"));
    if (strlen(title) > 0) {
        gtk_window_set_title(GTK_WINDOW(window), title);
    }

    if (nfiles > 1) {
        files = GTK_WIDGET(gtk_builder_get_object(builder, "files"));
        GtkCellRenderer *renderer;
        renderer = gtk_cell_renderer_text_new();
        gtk_tree_view_insert_column_with_attributes(
            GTK_TREE_VIEW(files), -1, "Bestand", renderer, "text", 0, NULL);
        GtkTreeModel *model = create_and_fill_model();
        gtk_tree_view_set_model(GTK_TREE_VIEW(files), model);
        g_object_unref(model);
        g_signal_connect(G_OBJECT(files), "row-activated",
                         G_CALLBACK(tree_row_activated_cb), NULL);
    }

    box = GTK_WIDGET(gtk_builder_get_object(builder, "my-box"));
    settings = webkit_settings_new();
    webkit_settings_set_default_font_size(settings, 18);
    webkit_settings_set_default_monospace_font_size(settings, 14);
    webkit_settings_set_default_charset(settings, "utf-8");
    webkit_settings_set_default_font_family(settings, "serif");
    webview = WEBKIT_WEB_VIEW(webkit_web_view_new_with_settings(settings));
    gtk_box_pack_start(GTK_BOX(box), GTK_WIDGET(webview), TRUE, TRUE, 0);
    webkit_web_view_load_uri(webview, url);

    g_signal_connect(window, "key-press-event",
                     G_CALLBACK(web_view_key_pressed), NULL);

    go_message(idREADY, "Let's begin!");
    gtk_widget_show_all(window);
    gtk_main();
}

G_MODULE_EXPORT gboolean delete_event(GtkWidget *widget, GdkEvent *event,
                                      gpointer data) {
    /* If you return FALSE in the "delete-event" signal handler,
     * GTK will emit the "destroy" signal. Returning TRUE means
     * you don't want the window to be destroyed.
     * This is useful for popping up 'are you sure you want to quit?'
     * type dialogs. */

    go_message(idDELETE, "Delete!");

    return FALSE;
}

G_MODULE_EXPORT void destroy(GtkWidget *widget, gpointer data) {
    gtk_main_quit();

    go_message(idDESTROY, "Destroy!");
}