Add some simple chat UI

[jubjub.git] / src / gui / gtk / JubGtkChatUI.m

diff --git a/src/gui/gtk/JubGtkChatUI.m b/src/gui/gtk/JubGtkChatUI.m
new file mode 100644 (file)
index 0000000..1dd1155
--- /dev/null
+++ b/src/gui/gtk/JubGtkChatUI.m
@@ -0,0 +1,143 @@
+#import "JubGtkChatUI.h"
+
+struct show_chat_params {
+       GtkWidget *window;
+       OFString *title;
+};
+
+static gboolean show_chat(gpointer data)
+{
+       struct show_chat_params *params = data;
+
+       gtk_window_set_title(GTK_WINDOW(params->window),
+           [params->title UTF8String]);
+       gtk_widget_show(params->window);
+
+       g_object_unref(params->window);
+       [params->title release];
+       free(params);
+
+       return FALSE;
+}
+
+struct add_text_params {
+       OFString *name;
+       OFString *text;
+       GtkTextBuffer *buffer;
+       BOOL first;
+};
+
+static gboolean add_text(gpointer data)
+{
+       GtkTextIter endIter;
+       struct add_text_params *params = data;
+
+       if (OF_LIKELY(!params->first))
+               gtk_text_buffer_insert_at_cursor(params->buffer, "\n", 1);
+
+       gtk_text_buffer_get_end_iter(params->buffer, &endIter);
+       gtk_text_buffer_insert_with_tags_by_name(params->buffer, &endIter,
+           [params->name UTF8String], [params->name UTF8StringLength], "bold",
+           NULL);
+       gtk_text_buffer_get_end_iter(params->buffer, &endIter);
+       gtk_text_buffer_insert_with_tags_by_name(params->buffer, &endIter,
+           ": ", 2, "bold", NULL);
+
+       gtk_text_buffer_insert_at_cursor(params->buffer,
+           [params->text UTF8String], [params->text UTF8StringLength]);
+
+       [params->name release];
+       [params->text release];
+       g_object_unref(params->buffer);
+       free(params);
+
+       return FALSE;
+}
+
+static gboolean call_send_block(GtkEntry *entry, GdkEventKey *event,
+    gpointer data)
+{
+       if (event->keyval != GDK_KEY_Return) return TRUE;
+
+       jub_send_block_t block = data;
+       OFString *text =
+           [[OFString alloc] initWithUTF8String: gtk_entry_get_text(entry)];
+       gtk_entry_set_text(entry, "");
+       block(text);
+       [text release];
+
+       return TRUE;
+}
+
+static gboolean add_tags(gpointer data) {
+       gtk_text_buffer_create_tag(data, "bold", "weight",
+           PANGO_WEIGHT_BOLD, NULL);
+
+       return FALSE;
+}
+
+@implementation JubGtkChatUI
+- initWithTitle: (OFString*)title
+      sendBlock: (jub_send_block_t)sendBlock_
+{
+       self = [super init];
+
+       @try {
+               GtkTextView *chat_view;
+               GtkEntry *chat_entry;
+               GtkBuilder *builder = gtk_builder_new();
+
+               sendBlock = [sendBlock_ copy];
+               bufferEmpty = YES;
+
+               gtk_builder_add_from_file(builder, "data/gtk/chat.ui", NULL);
+
+               chat_window = GTK_WIDGET(
+                   gtk_builder_get_object(builder, "ChatWindow"));
+
+               chat_view = GTK_TEXT_VIEW(
+                   gtk_builder_get_object(builder, "ChatTextView"));
+
+               chat_entry = GTK_ENTRY(
+                   gtk_builder_get_object(builder, "ChatEntry"));
+
+               g_signal_connect(chat_entry, "key_release_event",
+                   G_CALLBACK(call_send_block), sendBlock);
+
+               chat_buffer = gtk_text_view_get_buffer(chat_view);
+               g_idle_add(add_tags, chat_buffer);
+
+               struct show_chat_params *params = malloc(sizeof(*params));
+               params->window = g_object_ref(chat_window);
+               params->title = [title retain];
+               g_idle_add(show_chat, params);
+
+               g_object_unref(builder);
+       } @catch (id e) {
+               [self release];
+               @throw e;
+       }
+
+       return self;
+}
+
+- (void)dealloc
+{
+       gtk_widget_destroy(chat_window);
+       [sendBlock release];
+
+       [super dealloc];
+}
+
+- (void)addMessage: (OFString*)text
+           sender: (OFString*)sender;
+{
+       struct add_text_params *params = malloc(sizeof(*params));
+       params->name = [sender retain];
+       params->text = [text retain];
+       params->buffer = g_object_ref(chat_buffer);
+       params->first = bufferEmpty;
+       g_idle_add(add_text, params);
+       if (OF_UNLIKELY(bufferEmpty)) bufferEmpty = NO;
+}
+@end