headless: Initial headless embedder API implementation

headless/public/web_contents.h

-// Copyright 2015 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#ifndef HEADLESS_PUBLIC_WEB_CONTENTS_H_
-#define HEADLESS_PUBLIC_WEB_CONTENTS_H_
-
-#include "base/callback.h"
-#include "base/macros.h"
-#include "base/memory/scoped_ptr.h"
-#include "headless/public/headless_export.h"
-#include "url/gurl.h"
-
-class SkBitmap;
-
-namespace content {
-class WebContents;
-}
-
-namespace headless {
-class WebFrame;
-
-// Class representing contents of a browser tab.
-// Should be accessed from browser main thread.
-class HEADLESS_EXPORT WebContents {
- public:
-  virtual ~WebContents() {}
-
-  class Observer {
-   public:
-    // Will be called on browser thread.
-    virtual void DidNavigateMainFrame() = 0;
-    virtual void DocumentOnLoadCompletedInMainFrame() = 0;
-
-    virtual void OnLoadProgressChanged(double progress) = 0;
-    virtual void AddMessageToConsole(const std::string& message) = 0;
-    virtual bool ShouldSuppressDialogs(WebContents* source) = 0;
-    virtual void OnModalAlertDialog(const std::string& message) = 0;
-    virtual bool OnModalConfirmDialog(const std::string& message) = 0;
-    virtual std::string OnModalPromptDialog(
-        const std::string& message,
-        const std::string& default_value) = 0;
-
-   protected:
-    explicit Observer(WebContents* web_contents);
-    virtual ~Observer();
-
-   private:
-    class ObserverImpl;
-    scoped_ptr<ObserverImpl> observer_;
-
-    DISALLOW_COPY_AND_ASSIGN(Observer);
-  };
-
-  class Settings {
-    virtual void SetWebSecurityEnabled(bool enabled) = 0;
-    virtual void SetLocalStorageEnabled(bool enabled) = 0;
-    virtual void SetJavaScriptCanOpenWindowsAutomatically(bool enabled) = 0;
-    virtual void SetAllowScriptsToCloseWindows(bool enabled) = 0;
-    virtual void SetImagesEnabled(bool enabled) = 0;
-    virtual void SetJavascriptEnabled(bool enabled) = 0;
-    virtual void SetXSSAuditorEnabled(bool enabled) = 0;
-    virtual void SetDefaultTextEncoding(const std::string& encoding) = 0;
-  };
-
-  virtual Settings* GetSettings() = 0;
-  virtual const Settings* GetSettings() const = 0;
-
-  virtual NavigationController* GetController() = 0;
-  virtual const NavigationController* GetController() const = 0;
-
-  virtual std::string GetTitle() const = 0;
-  virtual const GURL& GetVisibleURL() const = 0;
-  virtual const GURL& GetLastCommittedURL() const = 0;
-  virtual bool IsLoading() const = 0;
-
-  virtual bool SetViewportSize(const gfx::Size& size) const = 0;
-
-  // Returns main frame for web page. Note that the returned interface should
-  // only be used on the renderer main thread.
-  virtual WebFrame* GetMainFrame() = 0;
-
-  // Requests browser tab to navigate to given url.
-  virtual void OpenURL(const GURL& url) = 0;
-
-  using ScreenshotCallback = base::Callback<void(scoped_ptr<SkBitmap>)>;
-  // Requests an image of web contents.
-  virtual void GetScreenshot(const ScreenshotCallback& callback) = 0;
-
- protected:
-  virtual content::WebContents* web_contents() = 0;
-
- private:
-  DISALLOW_COPY_AND_ASSIGN(WebContents);
-};
-
-}  // namespace headless
-
-#endif  // HEADLESS_PUBLIC_WEB_CONTENTS_H_