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chrome: Add Views API integration (see issue #2969)

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The Chrome browser can now be hosted in a Views-based application on Windows
and Linux.

To launch a fully-featured Chrome window using cefsimple:
$ cefsimple --enable-chrome-runtime

To launch a minimally-styled Views-hosted window using cefsimple:
$ cefsimple --enable-chrome-runtime --use-views

To launch a fully-styled Views-hosted window using cefclient:
$ cefclient --enable-chrome-runtime --use-views

Views unit tests also now pass with the Chrome runtime enabled:
$ ceftests --gtest_filter=Views* --enable-chrome-runtime

Known issues:
- Popup browsers cannot be intercepted and reparented.
This commit is contained in:
Marshall Greenblatt
2021-02-17 20:58:25 -05:00
parent 8f5fdc1f9a
commit 8733cb89c7
31 changed files with 839 additions and 107 deletions
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30
libcef/browser/browser_host_base.h
View File

@@ -38,6 +38,9 @@ struct CefBrowserCreateParams {
settings = that.settings;
request_context = that.request_context;
extra_info = that.extra_info;
#if defined(TOOLKIT_VIEWS)
browser_view = that.browser_view;
#endif
return *this;
}
@@ -45,10 +48,9 @@ struct CefBrowserCreateParams {
// views-hosted browser. Currently used with the alloy runtime only.
std::unique_ptr<CefWindowInfo> window_info;
#if defined(USE_AURA)
// The BrowserView that will own a views-hosted browser. Will be nullptr for
#if defined(TOOLKIT_VIEWS)
// The BrowserView that will own a Views-hosted browser. Will be nullptr for
// popup browsers (the BrowserView will be created later in that case).
// Currently used with the alloy runtime only.
CefRefPtr<CefBrowserView> browser_view;
#endif
@@ -100,6 +102,11 @@ class CefBrowserHostBase : public CefBrowserHost,
virtual ~Observer() {}
};
// Create a new CefBrowserHost instance of the current runtime type with
// owned WebContents.
static CefRefPtr<CefBrowserHostBase> Create(
CefBrowserCreateParams& create_params);
// Returns the browser associated with the specified RenderViewHost.
static CefRefPtr<CefBrowserHostBase> GetBrowserForHost(
const content::RenderViewHost* host);
@@ -127,6 +134,10 @@ class CefBrowserHostBase : public CefBrowserHost,
// Called on the UI thread after the associated WebContents is created.
virtual void InitializeBrowser();
// Called on the UI thread when the OS window hosting the browser is
// destroyed.
virtual void WindowDestroyed() = 0;
// Called on the UI thread after the associated WebContents is destroyed.
// Also called from CefBrowserInfoManager::DestroyAllBrowsers if the browser
// was not properly shut down.
@@ -136,6 +147,7 @@ class CefBrowserHostBase : public CefBrowserHost,
CefRefPtr<CefBrowser> GetBrowser() override;
CefRefPtr<CefClient> GetClient() override;
CefRefPtr<CefRequestContext> GetRequestContext() override;
bool HasView() override;
void StartDownload(const CefString& url) override;
void DownloadImage(const CefString& image_url,
bool is_favicon,
@@ -221,6 +233,7 @@ class CefBrowserHostBase : public CefBrowserHost,
CefRefPtr<CefRequestContextImpl> request_context() const {
return request_context_;
}
bool is_views_hosted() const { return is_views_hosted_; }
// Accessors that must be called on the UI thread.
content::WebContents* GetWebContents() const;
@@ -232,6 +245,16 @@ class CefBrowserHostBase : public CefBrowserHost,
return contents_delegate_.get();
}
#if defined(TOOLKIT_VIEWS)
// Returns the Widget owner for the browser window. Only used with windowed
// rendering.
views::Widget* GetWindowWidget() const;
// Returns the BrowserView associated with this browser. Only used with Views-
// based browsers.
CefRefPtr<CefBrowserView> GetBrowserView() const;
#endif
protected:
// Called from LoadMainFrameURL to perform the actual navigation.
virtual bool Navigate(const content::OpenURLParams& params);
@@ -242,6 +265,7 @@ class CefBrowserHostBase : public CefBrowserHost,
std::unique_ptr<CefBrowserPlatformDelegate> platform_delegate_;
scoped_refptr<CefBrowserInfo> browser_info_;
CefRefPtr<CefRequestContextImpl> request_context_;
const bool is_views_hosted_;
// Only accessed on the UI thread.
std::unique_ptr<CefBrowserContentsDelegate> contents_delegate_;