// Copyright © 2015 The CefSharp Authors. All rights reserved.
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//
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// Use of this source code is governed by a BSD-style license that can be found in the LICENSE file.
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using System.Collections.Generic;
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using Size = CefSharp.Structs.Size;
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namespace CefSharp
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{
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/// <summary>
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/// Handle events related to browser display state.
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/// </summary>
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public interface IDisplayHandler
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{
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/// <summary>
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/// Called when a frame's address has changed.
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/// </summary>
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/// <param name="chromiumWebBrowser">the ChromiumWebBrowser control</param>
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/// <param name="addressChangedArgs">args</param>
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void OnAddressChanged(IWebBrowser chromiumWebBrowser, AddressChangedEventArgs addressChangedArgs);
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/// <summary>
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/// Called when auto-resize is enabled via IBrowserHost.SetAutoResizeEnabled and the contents have auto-resized.
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/// </summary>
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/// <param name="chromiumWebBrowser">the ChromiumWebBrowser control</param>
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/// <param name="browser">the browser object</param>
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/// <param name="newSize">will be the desired size in view coordinates</param>
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/// <returns>Return true if the resize was handled or false for default handling. </returns>
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bool OnAutoResize(IWebBrowser chromiumWebBrowser, IBrowser browser, Size newSize);
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/// <summary>
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/// Called when the page title changes.
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/// </summary>
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/// <param name="chromiumWebBrowser">the ChromiumWebBrowser control</param>
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/// <param name="titleChangedArgs">args</param>
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void OnTitleChanged(IWebBrowser chromiumWebBrowser, TitleChangedEventArgs titleChangedArgs);
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/// <summary>
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/// Called when the page icon changes.
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/// </summary>
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/// <param name="chromiumWebBrowser">the ChromiumWebBrowser control</param>
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/// <param name="browser">the browser object</param>
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/// <param name="urls">list of urls where the favicons can be downloaded</param>
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void OnFaviconUrlChange(IWebBrowser chromiumWebBrowser, IBrowser browser, IList<string> urls);
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/// <summary>
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/// Called when web content in the page has toggled fullscreen mode. The client is
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/// responsible for resizing the browser if desired.
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/// </summary>
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/// <param name="chromiumWebBrowser">The ChromiumWebBrowser control</param>
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/// <param name="browser">the browser object</param>
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/// <param name="fullscreen">If true the content will automatically be sized to fill the browser content area.
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/// If false the content will automatically return to its original size and position.</param>
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void OnFullscreenModeChange(IWebBrowser chromiumWebBrowser, IBrowser browser, bool fullscreen);
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/// <summary>
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/// Called when the overall page loading progress has changed
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/// </summary>
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/// <param name="chromiumWebBrowser">The ChromiumWebBrowser control</param>
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/// <param name="browser">the browser object</param>
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/// <param name="progress">ranges from 0.0 to 1.0.</param>
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void OnLoadingProgressChange(IWebBrowser chromiumWebBrowser, IBrowser browser, double progress);
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/// <summary>
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/// Called when the browser is about to display a tooltip. text contains the
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/// text that will be displayed in the tooltip. You can optionally modify text
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/// and then return false to allow the browser to display the tooltip.
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/// When window rendering is disabled the application is responsible for
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/// drawing tooltips and the return value is ignored.
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/// </summary>
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/// <param name="chromiumWebBrowser">The ChromiumWebBrowser control</param>
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/// <param name="text">the text that will be displayed in the tooltip</param>
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/// <returns>To handle the display of the tooltip yourself return true otherwise return false
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/// to allow the browser to display the tooltip.</returns>
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/// <remarks>Only called when using Off-screen rendering (WPF and OffScreen)</remarks>
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bool OnTooltipChanged(IWebBrowser chromiumWebBrowser, ref string text);
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/// <summary>
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/// Called when the browser receives a status message.
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/// </summary>
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/// <param name="chromiumWebBrowser">The <see cref="IWebBrowser"/> control this popup is related to.</param>
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/// <param name="statusMessageArgs">args</param>
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void OnStatusMessage(IWebBrowser chromiumWebBrowser, StatusMessageEventArgs statusMessageArgs);
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/// <summary>
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/// Called to display a console message.
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/// </summary>
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/// <param name="chromiumWebBrowser">The ChromiumWebBrowser control</param>
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/// <param name="consoleMessageArgs">args</param>
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/// <returns>Return true to stop the message from being output to the console.</returns>
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bool OnConsoleMessage(IWebBrowser chromiumWebBrowser, ConsoleMessageEventArgs consoleMessageArgs);
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}
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}
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