src/gui/gtk/JubGtkChatUI.m

   1 #import "JubGtkChatUI.h"
   2 #import "JubGtkHelper.h"
   3
   4 struct call_send_block_params {
   5         jub_send_block_t block;
   6         JubGtkChatUI *chat;
   7 };
   8
   9 static gboolean call_send_block(GtkEntry *entry, GdkEventKey *event,
  10     gpointer data)
  11 {
  12         struct call_send_block_params *params = data;
  13         if (event->keyval != GDK_KEY_Return &&
  14             event->keyval != GDK_KEY_KP_Enter) return TRUE;
  15
  16         OFString *text =
  17             [[OFString alloc] initWithUTF8String: gtk_entry_get_text(entry)];
  18         gtk_entry_set_text(entry, "");
  19         params->block(text);
  20         [params->chat addMessage: text
  21                           sender: @"You"];
  22         [text release];
  23
  24         return TRUE;
  25 }
  26
  27 static gboolean call_close_block(GtkWidget *object, gpointer data)
  28 {
  29         jub_close_block_t block = data;
  30         block();
  31
  32         return FALSE;
  33 }
  34
  35 @implementation JubGtkChatUI
  36 - initWithTitle: (OFString*)title
  37      closeBlock: (jub_close_block_t)closeBlock_
  38       sendBlock: (jub_send_block_t)sendBlock_
  39 {
  40         self = [super init];
  41
  42         @try {
  43                 __block volatile BOOL initialized = NO;
  44                 __block GtkWidget *chat_window_;
  45                 __block GtkTextBuffer *chat_buffer_;
  46
  47                 closeBlock = [closeBlock_ copy];
  48                 sendBlock = [sendBlock_ copy];
  49                 bufferEmpty = YES;
  50
  51                 g_idle_add_block(^{
  52                         GtkTextView *chat_view;
  53                         GtkEntry *chat_entry;
  54
  55                         GtkBuilder *builder = gtk_builder_new();
  56                         gtk_builder_add_from_file(builder, "data/gtk/chat.ui",
  57                             NULL);
  58
  59                         chat_window_ = GTK_WIDGET(
  60                             gtk_builder_get_object(builder, "ChatWindow"));
  61                         g_signal_connect(chat_window_, "destroy",
  62                             G_CALLBACK(call_close_block), closeBlock);
  63
  64                         chat_view = GTK_TEXT_VIEW(
  65                             gtk_builder_get_object(builder, "ChatTextView"));
  66                         chat_buffer_ = gtk_text_view_get_buffer(chat_view);
  67                         gtk_text_buffer_create_tag(chat_buffer_, "bold",
  68                             "weight", PANGO_WEIGHT_BOLD, NULL);
  69
  70                         chat_entry = GTK_ENTRY(
  71                             gtk_builder_get_object(builder, "ChatEntry"));
  72                         struct call_send_block_params *send_params =
  73                             [self allocMemoryWithSize: sizeof(*send_params)];
  74                         send_params->block = sendBlock;
  75                         send_params->chat = self;
  76                         g_signal_connect(chat_entry, "key_release_event",
  77                             G_CALLBACK(call_send_block), send_params);
  78
  79                         gtk_window_set_title(GTK_WINDOW(chat_window_),
  80                             [title UTF8String]);
  81                         gtk_widget_show(chat_window_);
  82
  83                         initialized = YES;
  84
  85                         g_object_unref(builder);
  86                 });
  87
  88                 while (!initialized);
  89
  90                 chat_buffer = chat_buffer_;
  91                 chat_window = chat_window_;
  92         } @catch (id e) {
  93                 [self release];
  94                 @throw e;
  95         }
  96
  97         return self;
  98 }
  99
 100 - (void)dealloc
 101 {
 102         gtk_widget_destroy(chat_window);
 103         [sendBlock release];
 104         [closeBlock release];
 105
 106         [super dealloc];
 107 }
 108
 109 - (void)addMessage: (OFString*)text
 110             sender: (OFString*)sender
 111 {
 112         BOOL first = bufferEmpty;
 113         if (OF_UNLIKELY(bufferEmpty)) bufferEmpty = NO;
 114
 115         g_object_ref(chat_buffer);
 116         g_idle_add_block(^{
 117                 GtkTextIter endIter;
 118                 if (OF_LIKELY(!first))
 119                         gtk_text_buffer_insert_at_cursor(chat_buffer, "\n", 1);
 120
 121                 gtk_text_buffer_get_end_iter(chat_buffer, &endIter);
 122                 gtk_text_buffer_insert_with_tags_by_name(chat_buffer, &endIter,
 123                     [sender UTF8String], [sender UTF8StringLength], "bold",
 124                     NULL);
 125                 gtk_text_buffer_get_end_iter(chat_buffer, &endIter);
 126                 gtk_text_buffer_insert_with_tags_by_name(chat_buffer, &endIter,
 127                     ": ", 2, "bold", NULL);
 128
 129                 gtk_text_buffer_insert_at_cursor(chat_buffer, [text UTF8String],
 130                     [text UTF8StringLength]);
 131                 g_object_unref(chat_buffer);
 132         });
 133 }
 134 @end