src/imagelink.c

   1 /* logjam - a GTK client for LiveJournal.
   2  * Copyright (C) 2000-2004 Evan Martin <evan@livejournal.com>
   3  */
   4 #include "gtk-all.h"
   5 #include "util-gtk.h"
   6
   7 #include "conf.h"
   8 #include "jamdoc.h"
   9 #include "util.h"
  10
  11
  12 typedef struct {
  13   GtkWidget *dlg;
  14   GtkWidget *url, *get, *width, *height;
  15 } ImageDlg;
  16
  17
  18 static void url_changed_cb (ImageDlg *idlg) {
  19   const char *text = gtk_entry_get_text(GTK_ENTRY(idlg->url));
  20   gtk_widget_set_sensitive(idlg->get, text && text[0]);
  21   gtk_dialog_set_response_sensitive(GTK_DIALOG(idlg->dlg), GTK_RESPONSE_OK, text && text[0]);
  22 }
  23
  24
  25 static void size_cb (ImageDlg *idlg, gint width, gint height) {
  26   char *text = g_strdup_printf("%d", width);
  27   gtk_entry_set_text(GTK_ENTRY(idlg->width), text);
  28   g_free(text);
  29   text = g_strdup_printf("%d", height);
  30   gtk_entry_set_text(GTK_ENTRY(idlg->height), text);
  31   g_free(text);
  32 }
  33
  34
  35 static void get_url_cb (ImageDlg *idlg) {
  36   GdkPixbufLoader *loader;
  37   const char *url;
  38   GString *img;
  39   GError *err = NULL;
  40   /* XXX suboptimal: we retrieve the entire image when we only need a few bytes. */
  41   url = gtk_entry_get_text(GTK_ENTRY(idlg->url));
  42   img = net_get_run(_("Retrieving Image..."), GTK_WINDOW(idlg->dlg), url);
  43   if (!img) return;
  44   loader = gdk_pixbuf_loader_new();
  45   g_signal_connect_swapped(G_OBJECT(loader), "size-prepared", G_CALLBACK(size_cb), idlg);
  46   if (!gdk_pixbuf_loader_write(loader, (unsigned char *)img->str, img->len, &err)) {
  47     jam_warning(GTK_WINDOW(idlg->dlg), _("Error loading image: %s."), err->message);
  48     g_error_free(err);
  49   }
  50   gdk_pixbuf_loader_close(loader, NULL);
  51   g_object_unref(G_OBJECT(loader));
  52 }
  53
  54
  55 static void make_dialog (ImageDlg *idlg, GtkWindow *win) {
  56   GtkWidget *vbox, *hbox, *dimbox;
  57   GtkSizeGroup *sg;
  58
  59   idlg->dlg = gtk_dialog_new_with_buttons(_("Insert Image"),
  60                 win, GTK_DIALOG_MODAL, GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL, GTK_STOCK_OK, GTK_RESPONSE_OK, NULL);
  61   gtk_dialog_set_default_response(GTK_DIALOG(idlg->dlg), GTK_RESPONSE_OK);
  62   g_signal_connect_swapped(G_OBJECT(idlg->dlg), "show", G_CALLBACK(url_changed_cb), idlg);
  63
  64   sg = gtk_size_group_new(GTK_SIZE_GROUP_HORIZONTAL);
  65
  66   vbox = gtk_vbox_new(FALSE, 12);
  67
  68   idlg->url = gtk_entry_new();
  69   g_signal_connect_swapped(G_OBJECT(idlg->url), "changed", G_CALLBACK(url_changed_cb), idlg);
  70   gtk_box_pack_start(GTK_BOX(vbox), labelled_box_new_sg(_("_URL:"), idlg->url, sg), FALSE, FALSE, 0);
  71
  72   hbox = gtk_hbox_new(FALSE, 6);
  73
  74   dimbox = gtk_vbox_new(FALSE, 6);
  75   idlg->width = gtk_entry_new();
  76   gtk_entry_set_width_chars(GTK_ENTRY(idlg->width), 6);
  77   gtk_box_pack_start(GTK_BOX(dimbox), labelled_box_new_sg(_("_Width:"), idlg->width, sg), FALSE, FALSE, 0);
  78
  79   idlg->height = gtk_entry_new();
  80   gtk_entry_set_width_chars(GTK_ENTRY(idlg->height), 6);
  81   gtk_box_pack_start(GTK_BOX(dimbox), labelled_box_new_sg(_("_Height:"), idlg->height, sg), FALSE, FALSE, 0);
  82
  83   gtk_box_pack_start(GTK_BOX(hbox), dimbox, FALSE, FALSE, 0);
  84
  85   dimbox = gtk_vbox_new(FALSE, 6);
  86   idlg->get = gtk_button_new_with_mnemonic(_("_Retrieve Dimensions from Network"));
  87   g_signal_connect_swapped(G_OBJECT(idlg->get), "clicked", G_CALLBACK(get_url_cb), idlg);
  88   gtk_box_pack_start(GTK_BOX(dimbox), idlg->get, TRUE, FALSE, 0);
  89
  90   gtk_box_pack_end(GTK_BOX(hbox), dimbox, FALSE, FALSE, 0);
  91
  92   gtk_box_pack_start(GTK_BOX(vbox), hbox, FALSE, FALSE, 0);
  93
  94   jam_dialog_set_contents(GTK_DIALOG(idlg->dlg), vbox);
  95 }
  96
  97
  98 static gboolean is_image_link (const char *str) {
  99   if (!str) return FALSE;
 100   return (g_str_has_prefix(str, "http://") || g_str_has_prefix(str, "https://") || g_str_has_prefix(str, "ftp://"));
 101 }
 102
 103
 104 void image_dialog_run (GtkWindow *win, JamDoc *doc) {
 105   STACK(ImageDlg, idlg);
 106   GtkTextBuffer *buffer;
 107   GtkTextIter start, end;
 108   char *sel = NULL, *url = NULL;
 109   const char *data;
 110   int width = -1, height = -1;
 111
 112   make_dialog(idlg, win);
 113
 114   buffer = jam_doc_get_text_buffer(doc);
 115   if (gtk_text_buffer_get_selection_bounds(buffer, &start, &end)) {
 116     sel = gtk_text_buffer_get_text(buffer, &start, &end, FALSE);
 117     if (is_image_link(sel)) gtk_entry_set_text(GTK_ENTRY(idlg->url), sel);
 118   } else {
 119     char *clip;
 120     clip = jam_clipboard_wait_for_text_timeout(gtk_clipboard_get(GDK_SELECTION_CLIPBOARD), 50/*ms*/);
 121     if (is_image_link(clip)) gtk_entry_set_text(GTK_ENTRY(idlg->url), clip);
 122     g_free(clip);
 123   }
 124
 125   if (gtk_dialog_run(GTK_DIALOG(idlg->dlg)) == GTK_RESPONSE_OK) {
 126     if (sel) gtk_text_buffer_delete(buffer, &start, &end);
 127     else gtk_text_buffer_get_iter_at_mark(buffer, &start, gtk_text_buffer_get_insert(buffer));
 128
 129     url = g_strdup(gtk_entry_get_text(GTK_ENTRY(idlg->url)));
 130     xml_escape(&url);
 131     gtk_text_buffer_insert(buffer, &start, "<img src='", -1);
 132     gtk_text_buffer_insert(buffer, &start, url, -1);
 133     gtk_text_buffer_insert(buffer, &start, "'", -1);
 134     g_free(url);
 135
 136     data = gtk_entry_get_text(GTK_ENTRY(idlg->width));
 137     width = atoi(data);
 138
 139     data = gtk_entry_get_text(GTK_ENTRY(idlg->height));
 140     height = atoi(data);
 141
 142     if (width > 0) {
 143       char *data = g_strdup_printf(" width='%d'", width);
 144       gtk_text_buffer_insert(buffer, &start, data, -1);
 145       g_free(data);
 146     }
 147     if (height > 0) {
 148       char *data = g_strdup_printf(" height='%d'", height);
 149       gtk_text_buffer_insert(buffer, &start, data, -1);
 150       g_free(data);
 151     }
 152     gtk_text_buffer_insert(buffer, &start, " />", -1);
 153   }
 154
 155   g_free(sel);
 156
 157   gtk_widget_destroy(idlg->dlg);
 158 }