chromium添加一个书签项,并自动显示图标

2024-05-08 09:05:33 浏览数 (2)

添加一个书签很简单:

BookmarkModel* model =  BookmarkModelFactory::GetForBrowserContext(browser->profile());

const bookmarks::BookmarkNode* node = bookmarks::AddIfNotBookmarked(model, url, title);

两句话即可。麻烦的是怎么设置完书签以后还要显示这个书签对应的网址的favicon。

这个涉及到chromium的icon管理。

chromium把这块写的很复杂,其实真正的原因是chromium是要做成操作系统的,所以对各种icon有个统一的管理。而favicon的获取,需要打开网页,进行解析。所以所以我们需要创建一个webview控件来做这事情:

代码语言:javascript复制
 views::WebView* webview = g_hidden_web_view;// new views::WebView(browser->profile());

#if 0
  content::WebContentsImpl* web_contents = (content::WebContentsImpl*)webview->GetWebContents();
  new WebContentsBookmarkObserver(web_contents, node, url);

  favicon::CreateContentFaviconDriverForWebContents(web_contents);
  webview->LoadInitialURL(url);
#endif

然后还要记得在DidUpdateFaviconURL这个回调里刷新一下icon:

代码语言:javascript复制
class WebContentsBookmarkObserver : public content::WebContentsObserver {
public:
  WebContentsBookmarkObserver(WebContents* web_contents, const bookmarks::BookmarkNode* node, const GURL& page_url)
    : WebContentsObserver(web_contents) {
    node_ = node;
    page_url_ = page_url;
  }

  void DidUpdateFaviconURL(content::RenderFrameHost* rfh, const std::vector<blink::mojom::FaviconURLPtr>& candidates) override {
    if (candidates.size() == 0)
      return;

    content::BrowserContext* ctx = rfh->GetBrowserContext();
    BookmarkModel* model = BookmarkModelFactory::GetForBrowserContext(ctx);
    //node_->InvalidateFavicon();
    //model->GetFavicon(node_);

    //page_url_ = rfh->GetManifestURL();

    std::set<GURL> page_urls;
    page_urls.insert(page_url_);
    model->OnFaviconsChanged(page_urls, candidates[0]->icon_url);
  }
  const bookmarks::BookmarkNode* node_ = nullptr;
  GURL page_url_;
};

当然,如果不需要在线获取favicon,而是设置一个本地的icon:

代码语言:javascript复制
  favicon::FaviconService* service = FaviconServiceFactory::GetForProfile(browser->profile(), ServiceAccessType::IMPLICIT_ACCESS);

  gfx::Image image = CreateSkBitmap(SK_ColorRED, 16);
  service->SetOnDemandFavicons(url, url2, favicon_base::IconType::kFavicon, image, base::BindOnce(OnFaviocnAddFinish));

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