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// Copyright 2013 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CONTENT_SHELL_BROWSER_SHELL_H_
#define CONTENT_SHELL_BROWSER_SHELL_H_
#include <stdint.h>
#include <memory>
#include <string>
#include <vector>
#include "base/functional/callback_forward.h"
#include "base/memory/ref_counted.h"
#include "base/memory/scoped_refptr.h"
#include "build/build_config.h"
#include "content/public/browser/session_storage_namespace.h"
#include "content/public/browser/web_contents_delegate.h"
#include "content/public/browser/web_contents_observer.h"
#include "content/shell/browser/shell_platform_delegate.h"
#include "ipc/ipc_channel.h"
#include "ui/gfx/geometry/size.h"
#include "ui/gfx/native_widget_types.h"
class GURL;
namespace content {
class FileSelectListener;
class BrowserContext;
class JavaScriptDialogManager;
class ShellDevToolsFrontend;
class SiteInstance;
class WebContents;
class RenderFrameHost;
// This represents one window of the Content Shell, i.e. all the UI including
// buttons and url bar, as well as the web content area.
class Shell : public WebContentsDelegate, public WebContentsObserver {
public:
~Shell() override;
void LoadURL(const GURL& url);
void LoadURLForFrame(const GURL& url,
const std::string& frame_name,
ui::PageTransition);
void LoadDataWithBaseURL(const GURL& url,
const std::string& data,
const GURL& base_url);
#if BUILDFLAG(IS_ANDROID)
// Android-only path to allow loading long data strings.
void LoadDataAsStringWithBaseURL(const GURL& url,
const std::string& data,
const GURL& base_url);
#endif
void GoBackOrForward(int offset);
void Reload();
void ReloadBypassingCache();
void Stop();
void UpdateNavigationControls(bool should_show_loading_ui);
void Close();
void ShowDevTools();
void CloseDevTools();
// Resizes the web content view to the given dimensions.
void ResizeWebContentForTests(const gfx::Size& content_size);
// Do one-time initialization at application startup. This must be matched
// with a Shell::Shutdown() at application termination, where |platform|
// will be released.
static void Initialize(std::unique_ptr<ShellPlatformDelegate> platform);
// Closes all windows, pumps teardown tasks and signal the main message loop
// to quit.
static void Shutdown(); // Idempotent, can be called twice.
static Shell* CreateNewWindow(
BrowserContext* browser_context,
const GURL& url,
const scoped_refptr<SiteInstance>& site_instance,
const gfx::Size& initial_size);
// Returns the Shell object corresponding to the given WebContents.
static Shell* FromWebContents(WebContents* web_contents);
// Returns the currently open windows.
static std::vector<Shell*>& windows() { return windows_; }
// Stores the supplied |quit_closure|, to be run when the last Shell instance
// is destroyed.
static void SetMainMessageLoopQuitClosure(base::OnceClosure quit_closure);
// Used by the WebTestControlHost to stop the message loop before closing all
// windows, for specific tests. Has no effect if the loop is already quitting.
static void QuitMainMessageLoopForTesting();
// Used for content_browsertests. Called once.
static void SetShellCreatedCallback(
base::OnceCallback<void(Shell*)> shell_created_callback);
static bool ShouldHideToolbar();
WebContents* web_contents() const { return web_contents_.get(); }
#if !BUILDFLAG(IS_ANDROID)
gfx::NativeWindow window();
#endif
#if BUILDFLAG(IS_MAC)
// Public to be called by an ObjC bridge object.
void ActionPerformed(int control);
void URLEntered(const std::string& url_string);
#endif
// WebContentsDelegate
WebContents* OpenURLFromTab(
WebContents* source,
const OpenURLParams& params,
base::OnceCallback<void(content::NavigationHandle&)>
navigation_handle_callback) override;
WebContents* AddNewContents(
WebContents* source,
std::unique_ptr<WebContents> new_contents,
const GURL& target_url,
WindowOpenDisposition disposition,
const blink::mojom::WindowFeatures& window_features,
bool user_gesture,
bool* was_blocked) override;
void LoadingStateChanged(WebContents* source,
bool should_show_loading_ui) override;
#if BUILDFLAG(IS_ANDROID)
void SetOverlayMode(bool use_overlay_mode) override;
#endif
void EnterFullscreenModeForTab(
RenderFrameHost* requesting_frame,
const blink::mojom::FullscreenOptions& options) override;
void ExitFullscreenModeForTab(WebContents* web_contents) override;
bool IsFullscreenForTabOrPending(const WebContents* web_contents) override;
blink::mojom::DisplayMode GetDisplayMode(
const WebContents* web_contents) override;
#if !BUILDFLAG(IS_ANDROID)
void RegisterProtocolHandler(RenderFrameHost* requesting_frame,
const std::string& protocol,
const GURL& url,
bool user_gesture) override;
void UnregisterProtocolHandler(RenderFrameHost* requesting_frame,
const std::string& protocol,
const GURL& url,
bool user_gesture) override;
#endif
void RequestPointerLock(WebContents* web_contents,
bool user_gesture,
bool last_unlocked_by_target) override;
void CloseContents(WebContents* source) override;
bool CanOverscrollContent() override;
void NavigationStateChanged(WebContents* source,
InvalidateTypes changed_flags) override;
JavaScriptDialogManager* GetJavaScriptDialogManager(
WebContents* source) override;
#if BUILDFLAG(IS_MAC)
bool HandleKeyboardEvent(WebContents* source,
const input::NativeWebKeyboardEvent& event) override;
#endif
bool DidAddMessageToConsole(WebContents* source,
blink::mojom::ConsoleMessageLevel log_level,
const std::u16string& message,
int32_t line_no,
const std::u16string& source_id) override;
void RendererUnresponsive(
WebContents* source,
RenderWidgetHost* render_widget_host,
base::RepeatingClosure hang_monitor_restarter) override;
void ActivateContents(WebContents* contents) override;
#if BUILDFLAG(IS_ANDROID) || BUILDFLAG(IS_IOS)
std::unique_ptr<ColorChooser> OpenColorChooser(
WebContents* web_contents,
SkColor color,
const std::vector<blink::mojom::ColorSuggestionPtr>& suggestions)
override;
#endif
void RunFileChooser(RenderFrameHost* render_frame_host,
scoped_refptr<FileSelectListener> listener,
const blink::mojom::FileChooserParams& params) override;
void EnumerateDirectory(WebContents* web_contents,
scoped_refptr<FileSelectListener> listener,
const base::FilePath& path) override;
bool IsBackForwardCacheSupported(WebContents& contents) override;
PreloadingEligibility IsPrerender2Supported(
WebContents& web_contents,
PreloadingTriggerType trigger_type) override;
bool ShouldAllowRunningInsecureContent(WebContents* web_contents,
bool allowed_per_prefs,
const url::Origin& origin,
const GURL& resource_url) override;
PictureInPictureResult EnterPictureInPicture(
WebContents* web_contents) override;
bool ShouldResumeRequestsForCreatedWindow() override;
void SetContentsBounds(WebContents* source, const gfx::Rect& bounds) override;
static gfx::Size GetShellDefaultSize();
void set_delay_popup_contents_delegate_for_testing(bool delay) {
delay_popup_contents_delegate_for_testing_ = delay;
}
void set_hold_file_chooser() { hold_file_chooser_ = true; }
// Counts both RunFileChooser and EnumerateDirectory.
size_t run_file_chooser_count() const { return run_file_chooser_count_; }
private:
class DevToolsWebContentsObserver;
Shell(std::unique_ptr<WebContents> web_contents, bool should_set_delegate);
// Helper to create a new Shell given a newly created WebContents.
static Shell* CreateShell(std::unique_ptr<WebContents> web_contents,
const gfx::Size& initial_size,
bool should_set_delegate);
// Adjust the size when Blink sends 0 for width and/or height.
// This happens when Blink requests a default-sized window.
static gfx::Size AdjustWindowSize(const gfx::Size& initial_size);
// Helper method for the two public LoadData methods.
void LoadDataWithBaseURLInternal(const GURL& url,
const std::string& data,
const GURL& base_url,
bool load_as_string);
gfx::NativeView GetContentView();
void ToggleFullscreenModeForTab(WebContents* web_contents,
bool enter_fullscreen);
// WebContentsObserver
#if BUILDFLAG(IS_ANDROID)
void LoadProgressChanged(double progress) override;
#endif
void TitleWasSet(NavigationEntry* entry) override;
void RenderFrameCreated(RenderFrameHost* frame_host) override;
#if BUILDFLAG(IS_MAC)
void PrimaryPageChanged(Page& page) override;
#endif
std::unique_ptr<JavaScriptDialogManager> dialog_manager_;
std::unique_ptr<WebContents> web_contents_;
base::WeakPtr<ShellDevToolsFrontend> devtools_frontend_;
bool is_fullscreen_ = false;
gfx::Size content_size_;
bool delay_popup_contents_delegate_for_testing_ = false;
bool hold_file_chooser_ = false;
scoped_refptr<FileSelectListener> held_file_chooser_listener_;
size_t run_file_chooser_count_ = 0u;
// A container of all the open windows. We use a vector so we can keep track
// of ordering.
static std::vector<Shell*> windows_;
static base::OnceCallback<void(Shell*)> shell_created_callback_;
};
} // namespace content
#endif // CONTENT_SHELL_BROWSER_SHELL_H_
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