一、扩展接口定义 chrome.bookmarks
使用 chrome.bookmarks API 创建、整理以及以其他方式操纵书签。另请参阅覆盖网页（可用于创建自定义“书签管理器”页面）。
更多参考chrome.bookmarks | API | Chrome for Developers (google.cn)
扩展可以请从 chrome-extension-samples 安装 bookmarks API 示例 存储库
二、扩展接口c++定义
chrome\common\extensions\api\bookmarks.json
// Copyright 2012 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.[{"namespace": "bookmarks","description": "Use the <code>chrome.bookmarks</code> API to create, organize, and otherwise manipulate bookmarks. Also see <a href='override'>Override Pages</a>, which you can use to create a custom Bookmark Manager page.","properties": {"MAX_WRITE_OPERATIONS_PER_HOUR": {"value": 1000000,"deprecated": "Bookmark write operations are no longer limited by Chrome.","description": ""},"MAX_SUSTAINED_WRITE_OPERATIONS_PER_MINUTE": {"value": 1000000,"deprecated": "Bookmark write operations are no longer limited by Chrome.","description": ""}},"types": [{"id": "BookmarkTreeNodeUnmodifiable","type": "string","enum": ["managed"],"description": "Indicates the reason why this node is unmodifiable. The <var>managed</var> value indicates that this node was configured by the system administrator. Omitted if the node can be modified by the user and the extension (default)."},{"id": "BookmarkTreeNode","type": "object","description": "A node (either a bookmark or a folder) in the bookmark tree. Child nodes are ordered within their parent folder.","properties": {"id": {"type": "string","minimum": 0,"description": "The unique identifier for the node. IDs are unique within the current profile, and they remain valid even after the browser is restarted."},"parentId": {"type": "string","minimum": 0,"optional": true,"description": "The <code>id</code> of the parent folder. Omitted for the root node."},"index": {"type": "integer","optional": true,"description": "The 0-based position of this node within its parent folder."},"url": {"type": "string","optional": true,"description": "The URL navigated to when a user clicks the bookmark. Omitted for folders."},"title": {"type": "string","description": "The text displayed for the node."},"dateAdded": {"type": "number","optional": true,"description": "When this node was created, in milliseconds since the epoch (<code>new Date(dateAdded)</code>)."},"dateLastUsed": {"type": "number","optional": true,"description": "When this node was last opened, in milliseconds since the epoch. Not set for folders."},"dateGroupModified": {"type": "number","optional": true,"description": "When the contents of this folder last changed, in milliseconds since the epoch."},"unmodifiable": {"$ref": "BookmarkTreeNodeUnmodifiable","optional": true,"description": "Indicates the reason why this node is unmodifiable. The <var>managed</var> value indicates that this node was configured by the system administrator or by the custodian of a supervised user. Omitted if the node can be modified by the user and the extension (default)."},"children": {"type": "array","optional": true,"items": { "$ref": "BookmarkTreeNode" },"description": "An ordered list of children of this node."}}},{"id": "CreateDetails","description": "Object passed to the create() function.","inline_doc": true,"type": "object","properties": {"parentId": {"type": "string","serialized_type": "int64","optional": true,"description": "Defaults to the Other Bookmarks folder."},"index": {"type": "integer","minimum": 0,"optional": true},"title": {"type": "string","optional": true},"url": {"type": "string","optional": true}}}],"functions": [{"name": "get","type": "function","description": "Retrieves the specified BookmarkTreeNode(s).","parameters": [{"name": "idOrIdList","description": "A single string-valued id, or an array of string-valued ids","choices": [{"type": "string","serialized_type": "int64"},{"type": "array","items": {"type": "string","serialized_type": "int64"},"minItems": 1}]}],"returns_async": {"name": "callback","parameters": [{"name": "results","type": "array","items": { "$ref": "BookmarkTreeNode" }}]}},{"name": "getChildren","type": "function","description": "Retrieves the children of the specified BookmarkTreeNode id.","parameters": [{"type": "string","serialized_type": "int64","name": "id"}],"returns_async": {"name": "callback","parameters": [{"name": "results","type": "array","items": { "$ref": "BookmarkTreeNode"}}]}},{"name": "getRecent","type": "function","description": "Retrieves the recently added bookmarks.","parameters": [{"type": "integer","minimum": 1,"name": "numberOfItems","description": "The maximum number of items to return."}],"returns_async": {"name": "callback","parameters": [{"name": "results","type": "array","items": { "$ref": "BookmarkTreeNode" }}]}},{"name": "getTree","type": "function","description": "Retrieves the entire Bookmarks hierarchy.","parameters": [],"returns_async": {"name": "callback","parameters": [{"name": "results","type": "array","items": { "$ref": "BookmarkTreeNode" }}]}},{"name": "getSubTree","type": "function","description": "Retrieves part of the Bookmarks hierarchy, starting at the specified node.","parameters": [{"type": "string","serialized_type": "int64","name": "id","description": "The ID of the root of the subtree to retrieve."}],"returns_async": {"name": "callback","parameters": [{"name": "results","type": "array","items": { "$ref": "BookmarkTreeNode" }}]}},{"name": "search","type": "function","description": "Searches for BookmarkTreeNodes matching the given query. Queries specified with an object produce BookmarkTreeNodes matching all specified properties.","parameters": [{"name": "query","description": "Either a string of words and quoted phrases that are matched against bookmark URLs and titles, or an object. If an object, the properties <code>query</code>, <code>url</code>, and <code>title</code> may be specified and bookmarks matching all specified properties will be produced.","choices": [{"type": "string","description": "A string of words and quoted phrases that are matched against bookmark URLs and titles."},{"type": "object","description": "An object specifying properties and values to match when searching. Produces bookmarks matching all properties.","properties": {"query": {"type": "string","optional": true,"description": "A string of words and quoted phrases that are matched against bookmark URLs and titles."},"url": {"type": "string","optional": true,"description": "The URL of the bookmark; matches verbatim. Note that folders have no URL."},"title": {"type": "string","optional": true,"description": "The title of the bookmark; matches verbatim."}}}]}],"returns_async": {"name": "callback","parameters": [{"name": "results","type": "array","items": { "$ref": "BookmarkTreeNode" }}]}},{"name": "create","type": "function","description": "Creates a bookmark or folder under the specified parentId. If url is NULL or missing, it will be a folder.","parameters": [{"$ref": "CreateDetails","name": "bookmark"}],"returns_async": {"name": "callback","optional": true,"parameters": [{"name": "result","$ref": "BookmarkTreeNode"}]}},{"name": "move","type": "function","description": "Moves the specified BookmarkTreeNode to the provided location.","parameters": [{"type": "string","serialized_type": "int64","name": "id"},{"type": "object","name": "destination","properties": {"parentId": {"type": "string","optional": true},"index": {"type": "integer","minimum": 0,"optional": true}}}],"returns_async": {"name": "callback","optional": true,"parameters": [{"name": "result","$ref": "BookmarkTreeNode"}]}},{"name": "update","type": "function","description": "Updates the properties of a bookmark or folder. Specify only the properties that you want to change; unspecified properties will be left unchanged. <b>Note:</b> Currently, only 'title' and 'url' are supported.","parameters": [{"type": "string","serialized_type": "int64","name": "id"},{"type": "object","name": "changes","properties": {"title": {"type": "string","optional": true},"url": {"type": "string","optional": true}}}],"returns_async": {"name": "callback","optional": true,"parameters": [{"name": "result","$ref": "BookmarkTreeNode"}]}},{"name": "remove","type": "function","description": "Removes a bookmark or an empty bookmark folder.","parameters": [{"type": "string","serialized_type": "int64","name": "id"}],"returns_async": {"name": "callback","optional": true,"parameters": []}},{"name": "removeTree","type": "function","description": "Recursively removes a bookmark folder.","parameters": [{"type": "string","serialized_type": "int64","name": "id"}],"returns_async": {"name": "callback","optional": true,"parameters": []}}],"events": [{"name": "onCreated","type": "function","description": "Fired when a bookmark or folder is created.","parameters": [{"type": "string","name": "id"},{"$ref": "BookmarkTreeNode","name": "bookmark"}]},{"name": "onRemoved","type": "function","description": "Fired when a bookmark or folder is removed. When a folder is removed recursively, a single notification is fired for the folder, and none for its contents.","parameters": [{"type": "string","name": "id"},{"type": "object","name": "removeInfo","properties": {"parentId": { "type": "string" },"index": { "type": "integer" },"node": { "$ref": "BookmarkTreeNode" }}}]},{"name": "onChanged","type": "function","description": "Fired when a bookmark or folder changes. <b>Note:</b> Currently, only title and url changes trigger this.","parameters": [{"type": "string","name": "id"},{"type": "object","name": "changeInfo","properties": {"title": { "type": "string" },"url": {"type": "string","optional": true}}}]},{"name": "onMoved","type": "function","description": "Fired when a bookmark or folder is moved to a different parent folder.","parameters": [{"type": "string","name": "id"},{"type": "object","name": "moveInfo","properties": {"parentId": { "type": "string" },"index": { "type": "integer" },"oldParentId": { "type": "string" },"oldIndex": { "type": "integer" }}}]},{"name": "onChildrenReordered","type": "function","description": "Fired when the children of a folder have changed their order due to the order being sorted in the UI. This is not called as a result of a move().","parameters": [{"type": "string","name": "id"},{"type": "object","name": "reorderInfo","properties": {"childIds": {"type": "array","items": { "type": "string" }}}}]},{"name": "onImportBegan","type": "function","description": "Fired when a bookmark import session is begun. Expensive observers should ignore onCreated updates until onImportEnded is fired. Observers should still handle other notifications immediately.","parameters": []},{"name": "onImportEnded","type": "function","description": "Fired when a bookmark import session is ended.","parameters": []}]}
]
bookmarks.json生成对应文件：
out\Debug\gen\chrome\common\extensions\api\bookmarks.cc
out\Debug\gen\chrome\common\extensions\api\bookmarks.h
三、bookmarks函数实现：
chrome\browser\extensions\api\bookmarks\bookmarks_api.h
chrome\browser\extensions\api\bookmarks\bookmarks_api.cc
// Copyright 2012 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.#ifndef CHROME_BROWSER_EXTENSIONS_API_BOOKMARKS_BOOKMARKS_API_H_
#define CHROME_BROWSER_EXTENSIONS_API_BOOKMARKS_BOOKMARKS_API_H_#include <stdint.h>#include <memory>
#include <set>
#include <string>
#include <vector>#include "base/memory/raw_ptr.h"
#include "base/memory/ref_counted.h"
#include "base/values.h"
#include "components/bookmarks/browser/base_bookmark_model_observer.h"
#include "components/bookmarks/browser/bookmark_node.h"
#include "extensions/browser/browser_context_keyed_api_factory.h"
#include "extensions/browser/event_router.h"
#include "extensions/browser/extension_function.h"
#include "ui/shell_dialogs/select_file_dialog.h"class Profile;namespace base {
class FilePath;
}namespace bookmarks {
class BookmarkModel;
class ManagedBookmarkService;
}namespace content {
class BrowserContext;
}namespace extensions {namespace api {
namespace bookmarks {
struct CreateDetails;
}
}// Observes BookmarkModel and then routes the notifications as events to
// the extension system.
class BookmarkEventRouter : public bookmarks::BookmarkModelObserver {public:explicit BookmarkEventRouter(Profile* profile);BookmarkEventRouter(const BookmarkEventRouter&) = delete;BookmarkEventRouter& operator=(const BookmarkEventRouter&) = delete;~BookmarkEventRouter() override;// bookmarks::BookmarkModelObserver:void BookmarkModelLoaded(bookmarks::BookmarkModel* model,bool ids_reassigned) override;void BookmarkModelBeingDeleted(bookmarks::BookmarkModel* model) override;void BookmarkNodeMoved(bookmarks::BookmarkModel* model,const bookmarks::BookmarkNode* old_parent,size_t old_index,const bookmarks::BookmarkNode* new_parent,size_t new_index) override;void BookmarkNodeAdded(bookmarks::BookmarkModel* model,const bookmarks::BookmarkNode* parent,size_t index,bool added_by_user) override;void BookmarkNodeRemoved(bookmarks::BookmarkModel* model,const bookmarks::BookmarkNode* parent,size_t old_index,const bookmarks::BookmarkNode* node,const std::set<GURL>& removed_urls) override;void BookmarkAllUserNodesRemoved(bookmarks::BookmarkModel* model,const std::set<GURL>& removed_urls) override;void BookmarkNodeChanged(bookmarks::BookmarkModel* model,const bookmarks::BookmarkNode* node) override;void BookmarkNodeFaviconChanged(bookmarks::BookmarkModel* model,const bookmarks::BookmarkNode* node) override;void BookmarkNodeChildrenReordered(bookmarks::BookmarkModel* model,const bookmarks::BookmarkNode* node) override;void ExtensiveBookmarkChangesBeginning(bookmarks::BookmarkModel* model) override;void ExtensiveBookmarkChangesEnded(bookmarks::BookmarkModel* model) override;private:// Helper to actually dispatch an event to extension listeners.void DispatchEvent(events::HistogramValue histogram_value,const std::string& event_name,base::Value::List event_args);raw_ptr<content::BrowserContext> browser_context_;raw_ptr<bookmarks::BookmarkModel> model_;raw_ptr<bookmarks::ManagedBookmarkService> managed_;
};class BookmarksAPI : public BrowserContextKeyedAPI,public EventRouter::Observer {public:explicit BookmarksAPI(content::BrowserContext* context);~BookmarksAPI() override;// KeyedService implementation.void Shutdown() override;// BrowserContextKeyedAPI implementation.static BrowserContextKeyedAPIFactory<BookmarksAPI>* GetFactoryInstance();// EventRouter::Observer implementation.void OnListenerAdded(const EventListenerInfo& details) override;private:friend class BrowserContextKeyedAPIFactory<BookmarksAPI>;raw_ptr<content::BrowserContext> browser_context_;// BrowserContextKeyedAPI implementation.static const char* service_name() {return "BookmarksAPI";}static const bool kServiceIsNULLWhileTesting = true;// Created lazily upon OnListenerAdded.std::unique_ptr<BookmarkEventRouter> bookmark_event_router_;
};class BookmarksFunction : public ExtensionFunction,public bookmarks::BaseBookmarkModelObserver {public:// ExtensionFunction:ResponseAction Run() override;protected:~BookmarksFunction() override {}// Run semantic equivalent called when the bookmarks are ready.// Overrides can return nullptr to further delay responding (a.k.a.// RespondLater()).virtual ResponseValue RunOnReady() = 0;// Helper to get the BookmarkModel.bookmarks::BookmarkModel* GetBookmarkModel();// Helper to get the ManagedBookmarkService.bookmarks::ManagedBookmarkService* GetManagedBookmarkService();// Helper to get the bookmark node from a given string id.// If the given id can't be parsed or doesn't refer to a valid node, sets// |error| and returns nullptr.const bookmarks::BookmarkNode* GetBookmarkNodeFromId(const std::string& id_string,std::string* error);// Helper to create a bookmark node from a CreateDetails object. If a node// can't be created based on the given details, sets |error| and returns// nullptr.const bookmarks::BookmarkNode* CreateBookmarkNode(bookmarks::BookmarkModel* model,const api::bookmarks::CreateDetails& details,std::string* error);// Helper that checks if bookmark editing is enabled.bool EditBookmarksEnabled();// Helper that checks if |node| can be modified. Returns false if |node|// is nullptr, or a managed node, or the root node. In these cases the node// can't be edited, can't have new child nodes appended, and its direct// children can't be moved or reordered.bool CanBeModified(const bookmarks::BookmarkNode* node, std::string* error);Profile* GetProfile();private:// bookmarks::BaseBookmarkModelObserver:void BookmarkModelChanged() override;void BookmarkModelLoaded(bookmarks::BookmarkModel* model,bool ids_reassigned) override;// ExtensionFunction:void OnResponded() override;
};class BookmarksGetFunction : public BookmarksFunction {public:DECLARE_EXTENSION_FUNCTION("bookmarks.get", BOOKMARKS_GET)protected:~BookmarksGetFunction() override {}// BookmarksFunction:ResponseValue RunOnReady() override;
};class BookmarksGetChildrenFunction : public BookmarksFunction {public:DECLARE_EXTENSION_FUNCTION("bookmarks.getChildren", BOOKMARKS_GETCHILDREN)protected:~BookmarksGetChildrenFunction() override {}// BookmarksFunction:ResponseValue RunOnReady() override;
};class BookmarksGetRecentFunction : public BookmarksFunction {public:DECLARE_EXTENSION_FUNCTION("bookmarks.getRecent", BOOKMARKS_GETRECENT)protected:~BookmarksGetRecentFunction() override {}// BookmarksFunction:ResponseValue RunOnReady() override;
};class BookmarksGetTreeFunction : public BookmarksFunction {public:DECLARE_EXTENSION_FUNCTION("bookmarks.getTree", BOOKMARKS_GETTREE)protected:~BookmarksGetTreeFunction() override {}// BookmarksFunction:ResponseValue RunOnReady() override;
};class BookmarksGetSubTreeFunction : public BookmarksFunction {public:DECLARE_EXTENSION_FUNCTION("bookmarks.getSubTree", BOOKMARKS_GETSUBTREE)protected:~BookmarksGetSubTreeFunction() override {}// BookmarksFunction:ResponseValue RunOnReady() override;
};class BookmarksSearchFunction : public BookmarksFunction {public:DECLARE_EXTENSION_FUNCTION("bookmarks.search", BOOKMARKS_SEARCH)protected:~BookmarksSearchFunction() override {}// BookmarksFunction:ResponseValue RunOnReady() override;
};class BookmarksRemoveFunctionBase : public BookmarksFunction {protected:~BookmarksRemoveFunctionBase() override {}virtual bool is_recursive() const = 0;// BookmarksFunction:ResponseValue RunOnReady() override;
};class BookmarksRemoveFunction : public BookmarksRemoveFunctionBase {public:DECLARE_EXTENSION_FUNCTION("bookmarks.remove", BOOKMARKS_REMOVE)protected:~BookmarksRemoveFunction() override {}// BookmarksRemoveFunctionBase:bool is_recursive() const override;
};class BookmarksRemoveTreeFunction : public BookmarksRemoveFunctionBase {public:DECLARE_EXTENSION_FUNCTION("bookmarks.removeTree", BOOKMARKS_REMOVETREE)protected:~BookmarksRemoveTreeFunction() override {}// BookmarksRemoveFunctionBase:bool is_recursive() const override;
};class BookmarksCreateFunction : public BookmarksFunction {public:DECLARE_EXTENSION_FUNCTION("bookmarks.create", BOOKMARKS_CREATE)protected:~BookmarksCreateFunction() override {}// BookmarksFunction:ResponseValue RunOnReady() override;
};class BookmarksMoveFunction : public BookmarksFunction {public:DECLARE_EXTENSION_FUNCTION("bookmarks.move", BOOKMARKS_MOVE)protected:~BookmarksMoveFunction() override {}// BookmarksFunction:ResponseValue RunOnReady() override;
};class BookmarksUpdateFunction : public BookmarksFunction {public:DECLARE_EXTENSION_FUNCTION("bookmarks.update", BOOKMARKS_UPDATE)protected:~BookmarksUpdateFunction() override {}// BookmarksFunction:ResponseValue RunOnReady() override;
};} // namespace extensions#endif // CHROME_BROWSER_EXTENSIONS_API_BOOKMARKS_BOOKMARKS_API_H_