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77 lines
2.8 KiB
Java
77 lines
2.8 KiB
Java
/* -*- Mode: Java; c-basic-offset: 4; tab-width: 20; indent-tabs-mode: nil; -*-
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* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is Mozilla Android code.
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*
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* The Initial Developer of the Original Code is Mozilla Foundation.
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* Portions created by the Initial Developer are Copyright (C) 2009-2010
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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* Patrick Walton <pcwalton@mozilla.com>
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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package org.mozilla.gecko.gfx;
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/**
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* A layer client provides tiles and manages other information used by the layer controller.
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*/
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public abstract class LayerClient {
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private LayerController mLayerController;
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public abstract void geometryChanged();
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public abstract void viewportSizeChanged();
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protected abstract void render();
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public LayerController getLayerController() { return mLayerController; }
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public void setLayerController(LayerController layerController) {
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mLayerController = layerController;
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}
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/**
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* A utility function for calling Layer.beginTransaction with the
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* appropriate LayerView.
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*/
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public void beginTransaction(Layer aLayer) {
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if (mLayerController != null) {
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LayerView view = mLayerController.getView();
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if (view != null) {
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aLayer.beginTransaction(view);
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return;
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}
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}
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aLayer.beginTransaction();
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}
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// Included for symmetry.
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public void endTransaction(Layer aLayer) {
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aLayer.endTransaction();
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}
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}
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