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// Copyright (c) 2014 The Chromium Embedded Framework Authors. All rights
// reserved. Use of this source code is governed by a BSD-style license that
// can be found in the LICENSE file.

package org.cef.handler;

import org.cef.CefSettings;
import org.cef.browser.CefBrowser;
import org.cef.browser.CefFrame;

/**
 * Implement this interface to handle events related to browser display state.
 * The methods of this class will be called on the UI thread.
 */
public interface CefDisplayHandler {
    /**
     * Handle address changes.
     * @param browser The browser generating the event.
     * @param frame The frame generating the event.
     * @param url The new address.
     */
    public void onAddressChange(CefBrowser browser, CefFrame frame, String url);

    /**
     * Handle title changes.
     * @param browser The browser generating the event.
     * @param title The new title.
     */
    public void onTitleChange(CefBrowser browser, String title);

    /**
     * Called when the browser is about to display a tooltip.
     *
     * @param browser The browser generating the event.
     * @param text Contains the text that will be displayed in the tooltip.
     * @return To handle the display of the tooltip yourself return true.
     */
    public boolean onTooltip(CefBrowser browser, String text);

    /**
     * Called when the browser receives a status message.
     *
     * @param browser The browser generating the event.
     * @param value Contains the text that will be displayed in the status message.
     */
    public void onStatusMessage(CefBrowser browser, String value);

    /**
     * Called to display a console message.
     *
     * @param browser The browser generating the event.
     * @param level
     * @param message
     * @param source
     * @param line
     * @return true to stop the message from being output to the console.
     */
    public boolean onConsoleMessage(CefBrowser browser, CefSettings.LogSeverity level,
                                    String message, String source, int line);
}