1 files changed, 98 insertions, 0 deletions
diff --git a/layout/forms/nsIListControlFrame.h b/layout/forms/nsIListControlFrame.h
new file mode 100644
index 000000000..03c6ce8b3
--- /dev/null
+++ b/layout/forms/nsIListControlFrame.h
@@ -0,0 +1,98 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef nsIListControlFrame_h___
+#define nsIListControlFrame_h___
+
+#include "nsQueryFrame.h"
+
+class nsAString;
+
+namespace mozilla {
+namespace dom {
+class HTMLOptionElement;
+} // namespace dom
+} // namespace mozilla
+
+/**
+  * nsIListControlFrame is the interface for frame-based listboxes.
+  */
+class nsIListControlFrame : public nsQueryFrame
+{
+public:
+  NS_DECL_QUERYFRAME_TARGET(nsIListControlFrame)
+
+  /**
+   * Sets the ComboBoxFrame
+   *
+   */
+  virtual void SetComboboxFrame(nsIFrame* aComboboxFrame) = 0;
+
+  /**
+   * Get the display string for an item
+   */
+  virtual void GetOptionText(uint32_t aIndex, nsAString& aStr) = 0;
+
+  /**
+   * Get the Selected Item's index
+   *
+   */
+  virtual int32_t GetSelectedIndex() = 0;
+
+  /**
+   * Return current option. The current option is the option displaying
+   * the focus ring when the listbox is focused.
+   */
+  virtual mozilla::dom::HTMLOptionElement* GetCurrentOption() = 0;
+
+  /**
+   * Initiates mouse capture for the listbox
+   *
+   */
+  virtual void CaptureMouseEvents(bool aGrabMouseEvents) = 0;
+
+  /**
+   * Returns the block size of a single row in the list.  This is the
+   * maximum of the block sizes of all the options/optgroups.
+   */
+  virtual nscoord GetBSizeOfARow() = 0;
+
+  /**
+   * Returns the number of options in the listbox
+   */
+
+  virtual uint32_t GetNumberOfOptions() = 0;
+
+  /**
+   * Called by combobox when it's about to drop down
+   */
+  virtual void AboutToDropDown() = 0;
+
+  /**
+   * Called by combobox when it's about to roll up
+   */
+  virtual void AboutToRollup() = 0;
+
+  /**
+   * Fire on input and on change (used by combobox)
+   */
+  virtual void FireOnInputAndOnChange() = 0;
+
+  /**
+   * Tell the selected list to roll up and ensure that the proper index is
+   * selected, possibly firing onChange if the index has changed
+   *
+   * @param aIndex the index to actually select
+   */
+  virtual void ComboboxFinish(int32_t aIndex) = 0;
+
+  /**
+   * Notification that the content has been reset
+   */
+  virtual void OnContentReset() = 0;
+};
+
+#endif
+