Merge commit 'origin/1.0-bugfix'

[vlc] / src / interface / dialog.c

diff --git a/src/interface/dialog.c b/src/interface/dialog.c
index d0ba589070863945e020c8285f0d3a6487c46981..22ac7859e77f28269b1e8f5002e941bd27f0dbe9 100644 (file)
--- a/src/interface/dialog.c
+++ b/src/interface/dialog.c
@@ -165,3 +165,96 @@ void dialog_Login (vlc_object_t *obj, char **username, char **password,
     va_end (ap);
     vlc_object_release (provider);
 }
+
+
+#undef dialog_Question
+/**
+ * Asks a total (Yes/No/Cancel) question through the user interface.
+ * @param obj VLC object emitting the question
+ * @param title dialog box title
+ * @param text dialog box text
+ * @param yes first choice/button text
+ * @param no second choice/button text
+ * @param cancel third answer/button text, or NULL if no third option
+ * @return 0 if the user could not answer the question (e.g. there is no UI),
+ * 1, 2 resp. 3 if the user pressed the first, second resp. third button.
+ */
+int dialog_Question (vlc_object_t *obj, const char *title, const char *text,
+                     const char *yes, const char *no, const char *cancel)
+{
+    if (obj->i_flags & OBJECT_FLAGS_NOINTERACT)
+        return 0;
+
+    vlc_object_t *provider = dialog_GetProvider (obj);
+    if (provider == NULL)
+        return 0;
+
+    dialog_question_t dialog = { title, text, yes, no, cancel, 0, };
+    var_SetAddress (provider, "dialog-question", &dialog);
+    vlc_object_release (provider);
+    return dialog.answer;
+}
+
+#undef dialog_ProgressCreate
+/**
+ * Creates a progress bar dialog.
+ */
+dialog_progress_bar_t *
+dialog_ProgressCreate (vlc_object_t *obj, const char *title,
+                       const char *message, const char *cancel)
+{
+    if (obj->i_flags & OBJECT_FLAGS_NOINTERACT)
+        return NULL;
+
+    vlc_object_t *provider = dialog_GetProvider (obj);
+    if (provider == NULL)
+        return NULL;
+
+    dialog_progress_bar_t *dialog = malloc (sizeof (*dialog));
+    if (dialog != NULL)
+    {
+        dialog->title = title;
+        dialog->message = message;
+        dialog->cancel = cancel;
+        var_SetAddress (provider, "dialog-progress-bar", dialog);
+#ifndef NDEBUG
+        dialog->title = dialog->message = dialog->cancel = NULL;
+#endif
+        assert (dialog->pf_update);
+        assert (dialog->pf_check);
+        assert (dialog->pf_destroy);
+    }
+
+    /* FIXME: This could conceivably crash if the dialog provider is destroyed
+     * before the dialog user. Holding the provider does not help, as it only
+     * protects object variable operations. For instance, it does not prevent
+     * unloading of the interface plugin. In the short term, the only solution
+     * is to not use progress dialog after deinitialization of the interfaces.
+     */
+    vlc_object_release (provider);
+    return dialog;
+}
+
+void dialog_ProgressDestroy (dialog_progress_bar_t *dialog)
+{
+    assert (dialog);
+
+    dialog->pf_destroy (dialog->p_sys);
+    free (dialog);
+}
+
+void dialog_ProgressSet (dialog_progress_bar_t *dialog, const char *text,
+                         float value)
+{
+    assert (dialog);
+
+    dialog->pf_update (dialog->p_sys, text, value);
+}
+
+bool dialog_ProgressCancelled (dialog_progress_bar_t *dialog)
+{
+    assert (dialog);
+
+    return dialog->pf_check (dialog->p_sys);
+}
+