cef/libcef/browser/alloy/browser_platform_delegate_a...

116 lines
4.8 KiB
C++

// Copyright (c) 2015 The Chromium Embedded Framework Authors.
// Portions copyright (c) 2011 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 CEF_LIBCEF_BROWSER_ALLOY_BROWSER_PLATFORM_DELEGATE_ALLOY_H_
#define CEF_LIBCEF_BROWSER_ALLOY_BROWSER_PLATFORM_DELEGATE_ALLOY_H_
#include "libcef/browser/browser_platform_delegate.h"
#include "libcef/browser/web_contents_dialog_helper.h"
#include "base/memory/weak_ptr.h"
#include "content/public/browser/web_contents.h"
#include "ui/gfx/geometry/size.h"
// Implementation of Alloy-based browser functionality.
class CefBrowserPlatformDelegateAlloy : public CefBrowserPlatformDelegate {
public:
content::WebContents* CreateWebContents(CefBrowserCreateParams& create_params,
bool& own_web_contents) override;
void WebContentsCreated(content::WebContents* web_contents,
bool owned) override;
void AddNewContents(content::WebContents* source,
std::unique_ptr<content::WebContents> new_contents,
const GURL& target_url,
WindowOpenDisposition disposition,
const gfx::Rect& initial_rect,
bool user_gesture,
bool* was_blocked) override;
bool ShouldAllowRendererInitiatedCrossProcessNavigation(
bool is_main_frame_navigation) override;
void RenderViewCreated(content::RenderViewHost* render_view_host) override;
void RenderViewReady() override;
void BrowserCreated(CefBrowserHostBase* browser) override;
void CreateExtensionHost(const extensions::Extension* extension,
const GURL& url,
extensions::mojom::ViewType host_type) override;
extensions::ExtensionHost* GetExtensionHost() const override;
void BrowserDestroyed(CefBrowserHostBase* browser) override;
void SendCaptureLostEvent() override;
#if defined(OS_WIN) || (defined(OS_POSIX) && !defined(OS_MAC))
void NotifyMoveOrResizeStarted() override;
#endif
bool PreHandleGestureEvent(content::WebContents* source,
const blink::WebGestureEvent& event) override;
bool IsNeverComposited(content::WebContents* web_contents) override;
void SetAutoResizeEnabled(bool enabled,
const CefSize& min_size,
const CefSize& max_size) override;
void SetAccessibilityState(cef_state_t accessibility_state) override;
bool IsPrintPreviewSupported() const override;
void Print() override;
void PrintToPDF(const CefString& path,
const CefPdfPrintSettings& settings,
CefRefPtr<CefPdfPrintCallback> callback) override;
void Find(int identifier,
const CefString& searchText,
bool forward,
bool matchCase,
bool findNext) override;
void StopFinding(bool clearSelection) override;
protected:
CefBrowserPlatformDelegateAlloy();
base::RepeatingClosure GetBoundsChangedCallback();
// Returns the WebContents most likely to handle an action. If extensions are
// enabled and this browser has a full-page guest (for example, a full-page
// PDF viewer extension) then the guest's WebContents will be returned.
// Otherwise, the browser's WebContents will be returned.
content::WebContents* GetActionableWebContents() const;
// Called from BrowserPlatformDelegateNative::set_windowless_handler().
void set_as_secondary() { primary_ = false; }
private:
void SetOwnedWebContents(content::WebContents* owned_contents);
void DestroyExtensionHost();
void OnExtensionHostDeleted();
void ConfigureAutoResize();
// Non-nullptr if this object owns the WebContents. Will be nullptr for popup
// browsers between the calls to WebContentsCreated() and AddNewContents(),
// and may never be set if the parent browser is destroyed during popup
// creation.
std::unique_ptr<content::WebContents> owned_web_contents_;
// Used for the print preview dialog.
std::unique_ptr<CefWebContentsDialogHelper> web_contents_dialog_helper_;
// Used to provide unique incremental IDs for each find request.
int find_request_id_counter_ = 0;
// Used when the browser is hosting an extension.
extensions::ExtensionHost* extension_host_ = nullptr;
bool is_background_host_ = false;
// Used with auto-resize.
bool auto_resize_enabled_ = false;
gfx::Size auto_resize_min_;
gfx::Size auto_resize_max_;
// True if this is the primary platform delegate, in which case it will
// register WebContents delegate/observers.
bool primary_ = true;
base::WeakPtrFactory<CefBrowserPlatformDelegateAlloy> weak_ptr_factory_;
DISALLOW_COPY_AND_ASSIGN(CefBrowserPlatformDelegateAlloy);
};
#endif // CEF_LIBCEF_BROWSER_ALLOY_BROWSER_PLATFORM_DELEGATE_ALLOY_H_