WO2024082888A1 - 一种内容共享方法、装置、设备及介质 - Google Patents

一种内容共享方法、装置、设备及介质 Download PDF

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Publication number
WO2024082888A1
WO2024082888A1 PCT/CN2023/118877 CN2023118877W WO2024082888A1 WO 2024082888 A1 WO2024082888 A1 WO 2024082888A1 CN 2023118877 W CN2023118877 W CN 2023118877W WO 2024082888 A1 WO2024082888 A1 WO 2024082888A1
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WIPO (PCT)
Prior art keywords
content
sharing
shared
screen
asynchronous
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PCT/CN2023/118877
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English (en)
French (fr)
Inventor
吴依桐
喻宙
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北京字跳网络技术有限公司
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Publication of WO2024082888A1 publication Critical patent/WO2024082888A1/zh

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/02—Details
    • H04L12/16—Arrangements for providing special services to substations
    • H04L12/18—Arrangements for providing special services to substations for broadcast or conference, e.g. multicast
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L49/00—Packet switching elements
    • H04L49/10—Packet switching elements characterised by the switching fabric construction
    • H04L49/102—Packet switching elements characterised by the switching fabric construction using shared medium, e.g. bus or ring
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/40—Support for services or applications
    • H04L65/401—Support for services or applications wherein the services involve a main real-time session and one or more additional parallel real-time or time sensitive sessions, e.g. white board sharing or spawning of a subconference
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/14—Systems for two-way working
    • H04N7/15—Conference systems

Definitions

  • the present disclosure relates to the field of computer technology, and in particular to a content sharing method, device, equipment and medium.
  • the present disclosure provides a content sharing method, apparatus, device and medium.
  • the present disclosure provides a content sharing method, the method comprising:
  • the screen content displaying the webpage content is sent to the shared end, so that the shared end displays the screen content;
  • the identification information of the webpage content is obtained, and the identification information is sent to the shared terminal, so that the shared terminal asynchronously displays the webpage content corresponding to the identification information based on an asynchronous access operation.
  • the present disclosure also provides a content sharing device, the device comprising:
  • a screen sharing module configured to send the screen content displaying the webpage content to the shared end in response to the screen sharing triggering operation, so that the shared end displays the screen content
  • the asynchronous display module is used to obtain the identification information of the web page content and send the identification information to the shared terminal, so that the shared terminal asynchronously displays the web page content corresponding to the identification information based on the asynchronous access operation.
  • An embodiment of the present disclosure also provides an electronic device, comprising: a processor; a memory for storing executable instructions of the processor; the processor is used to read the executable instructions from the memory and execute the instructions to implement the content sharing method provided by the embodiment of the present disclosure.
  • the embodiment of the present disclosure further provides a computer-readable storage medium, wherein the storage medium stores a computer program, and the computer program is used to execute the content sharing method provided by the embodiment of the present disclosure.
  • the embodiments of the present disclosure further provide a computer program product, including a computer program, wherein when the computer program is executed by a processor, the content sharing method provided by the embodiments of the present disclosure is implemented.
  • the content sharing solution provided by the embodiment of the present disclosure in response to the screen sharing trigger operation, sends the screen content showing the web page content to the shared end, so that the shared end displays the screen content; obtains the identification information of the web page content, and sends the identification information to the shared end, so that the shared end asynchronously displays the web page content corresponding to the identification information based on the asynchronous access operation.
  • the sharing end when the sharing end realizes web page content sharing through screen sharing, the sharing end can send the identification information of the web page content to the shared end, so that the shared end can asynchronously display the web page content under the asynchronous access operation based on the identification information, which solves the problem of high content limitation and low degree of freedom that may exist in the shared end, and realizes that the shared person of the web page content sharing can asynchronously access the same web page content relative to the sharer, improves the degree of freedom and content access experience of the shared person, and can meet higher content sharing requirements.
  • FIG1 is a flow chart of a content sharing method provided by some embodiments of the present disclosure.
  • FIG2 is a schematic diagram of screen sharing provided by some embodiments of the present disclosure.
  • FIG3 is a schematic diagram of another screen sharing provided by some embodiments of the present disclosure.
  • FIG4 is a schematic diagram of a webpage content display provided by some embodiments of the present disclosure.
  • FIG5 is a schematic diagram of a preset anti-counterfeiting mark provided in some embodiments of the present disclosure.
  • FIG6 is a schematic diagram of webpage content sharing provided by some embodiments of the present disclosure.
  • FIG7 is a schematic diagram of the structure of a content sharing device provided by some embodiments of the present disclosure.
  • FIG8 is a schematic diagram of the structure of an electronic device provided in some embodiments of the present disclosure.
  • the web page content can be cloud document content or ordinary web page content.
  • this method has the following problems on the sharee's side: low clarity, which is limited by the screen clarity and network bandwidth of the sharing end and/or the shared end; because the visible range of the content on the shared end is limited by the window size of the sharer, the content is highly limited; low degree of freedom, the pace of viewing shared content is limited by the sharer's operations, and it is impossible to spend more time on the content that the sharer is more concerned about, and the sharer cannot take care of the different shared content access needs of multiple sharees at the same time.
  • the related technology cannot solve the above problems, and thus cannot meet higher document sharing requirements.
  • the present disclosure provides a content sharing method, which is described below in conjunction with specific embodiments.
  • FIG1 is a flowchart of a content sharing method provided by some embodiments of the present disclosure, which can be performed by a content sharing device, wherein the device can be implemented by software and/or hardware, and can generally be integrated in an electronic device.
  • the method is applied to a sharing end or a server end, and the server end can be a content sharing server end (such as a conference server end) to be introduced later, or a cloud document server end.
  • the method includes:
  • Step 101 In response to a screen sharing triggering operation, a screen content displaying web page content is sent to a shared terminal, so that the shared terminal displays the screen content.
  • Screen sharing can be understood as screen projection, that is, sharing the content displayed on the screen through video streaming, allowing multiple users to browse the same content simultaneously. If a user initiates screen sharing, the current screen display content can be sent to other users in the form of a video stream, and other users can synchronously present the same screen display content.
  • the screen sharing trigger operation can be a specific operation that triggers screen sharing in different scenarios.
  • the scenario can be a multimedia conference scenario, which can specifically include gesture control operations (such as clicking, long pressing, double clicking, etc.) of the preset screen sharing controls in the page (for example, the multimedia conference client interface), voice control operations, or expression control operations, etc., and the embodiments of the present disclosure are not limited to this.
  • Web page content may be the content displayed on the screen after the shared user currently opens a specific web page through a browser.
  • web page content may include cloud documents or other content.
  • a cloud document may be a document that can be accessed through a browser, for example, the cloud document may have a corresponding access address, and the shared user may display the cloud document by entering the access address in the browser; and the cloud document may be stored in the cloud, and the cloud document supports editing by users with editing permissions, and the user with editing permissions may be the sharing user, the shared user, or other users with management permissions for the cloud document.
  • the shared user may edit the cloud document in the sharing window, so that the shared user in the synchronous access state can view the edited content in the sharing window.
  • the shared user in the asynchronous access state may edit the cloud document in the sharing window, so that the shared user and/or other shared users can view the edited content in the sharing window.
  • the specific content format of the cloud document in the embodiment of the present disclosure is not limited, for example, the content format of the cloud document may include text, table, schedule, audio, video and other formats. Other content may be content that can only be accessed but not edited through a browser. For example, other content may be content of an ordinary web page obtained from the Internet. The format of the specific content is not limited.
  • the screen content can be the content obtained by collecting data from the screen currently displaying the webpage content, and can specifically include images obtained by screenshots and/or videos obtained by screen recordings.
  • the sharing user can be the user who actively initiates screen sharing, and the corresponding client is the sharing end.
  • the shared user can be the user who passively shares the screen, such as the other users in the meeting except the sharing user. At least some of the participants other than the above-mentioned participants may be shared users, and the client corresponding to the shared user is the shared end.
  • the content sharing method of the embodiment of the present disclosure may be executed by the sharing end or the service end, that is, the content sharing device is arranged on the sharing end or the service end.
  • the content sharing device After receiving the screen sharing trigger operation of the sharing user, the content sharing device can obtain the screen content with the webpage content displayed on the screen of the sharing end, and send the screen content to the shared end, so that the shared end and the sharing end can present the screen content synchronously. That is, the shared user and the sharing user can browse the webpage content in the screen content synchronously. Moreover, when the sharing end changes the display of the webpage content, the shared end can follow the change display.
  • Step 102 Acquire identification information of the webpage content, and send the identification information to the shared terminal, so that the shared terminal asynchronously displays the webpage content corresponding to the identification information based on the asynchronous access operation.
  • the identification information may be information used to uniquely characterize the web page content, and is used to locate a web page content among multiple web page contents.
  • the identification information of the web page content may be preset information, at least one of the summary information of the web page content, or a web page address, etc., which may be determined based on actual conditions.
  • the asynchronous access operation may be an operation for performing free access to the web page content displayed on the screen by the sharing end, which is not restricted by the sharing end. The access process is asynchronous with the sharing end and is not affected by the sharing end.
  • the specific operation form is not limited.
  • the asynchronous access operation may be a trigger operation for a preset asynchronous access control, a trigger operation for an asynchronous authorization notification, or an upward or downward slide operation for the currently displayed screen content, etc.
  • the content sharing device may obtain identification information of the web page content based on the summary information of the web page content or the above-mentioned screen content, and then may send the identification information to the shared end.
  • the shared end receives the identification information of the web page content, when an asynchronous access operation of the shared user is detected, it may obtain the web page address of the web page content based on the identification information of the web page content, and switch the currently displayed screen content to the web page content displayed on a new page based on the web page address.
  • the currently displayed screen content may be closed, and the web page content may be displayed on a new page based on the web page address.
  • the rendering state of the web page content may be rendered and displayed starting from the initial position, and the initial position may be understood as the first content in the web page content. At the position.
  • the initial position may be the position of the first text or the first image in the cloud document.
  • the rendering state of the web page state may also be rendered and displayed starting from the position corresponding to the asynchronous access operation, and the position corresponding to the asynchronous access operation may be the access position of the web page content in the screen content when the asynchronous access operation is triggered.
  • the content sharing device may switch the rendering state of the web page content in response to the free browsing operation of the shared user, that is, switch the specific display position of the web page content.
  • the shared end obtains the web address of the cloud document, closes the currently displayed screen content, and displays the cloud document in a new page based on the web address.
  • the shared user can browse the cloud document independently, for example, can browse the tenth line of the cloud document, which is different from the sharing user; and the shared user can later switch from the tenth line of the cloud document to the twentieth line for browsing.
  • obtaining identification information of web page content may include: obtaining summary information of the web page content based on the browser window targeted by the screen sharing trigger operation through the system application interface of the sharing end; obtaining identification information based on first preset information pre-added in the summary information, or extracting second preset information in the summary information as identification information.
  • the summary information may be information related to the web page content that can be obtained through the browser window.
  • the summary information may include the title content of the current web page content and the titles of pages opened in other browsers. The following description is made by taking the title content of the current web page content as an example.
  • the first preset information may be information pre-added to the title content of the web page content.
  • the first preset information may be invisible characters or visible characters, and the format of the characters is not limited.
  • the first preset information may be added before the shared user displays the web page content, or after the shared user displays the web page content.
  • the specific information included in the first preset information may be different when the first preset information is added at different times.
  • the second preset information may be obtained by combining at least two types of information of the web page content, and may specifically include at least two of the title, author, creation time, etc.
  • the title part of the page will also be displayed on the title of the browser window.
  • the sharing end displays the web page content through the browser, it can read the title part of the browser window displayed on the screen sharing trigger operation through the system application programming interface (API).
  • the content sharing device can obtain the summary information of the web page content in the title part, and then extract the first preset information or the second preset information in the summary information. If the first preset information is extracted, it means that the current web page content is a web page content with editing authority, such as a cloud document.
  • the first preset information can be determined as the identification information of the web page content; or, if the second preset information is extracted, the second preset information can be directly determined as the identification information of the web page content.
  • obtaining identification information of web page content may include: performing text recognition and address extraction on screen content to obtain a web page address, and determining the web page address as identification information of web page content.
  • the web page address may be a resource address of the web page content.
  • the web page address may be an access address of a document resource of the cloud document, through which the cloud document may be obtained and displayed.
  • the content sharing device can also perform text recognition on the screen content to obtain the screen text.
  • the specific text recognition method is not limited. For example, it can be recognized through a preset program interface or optical character recognition (OCR).
  • OCR optical character recognition
  • the address can be extracted from the screen text based on the format of the web page address, the extracted text is determined as the web page address, and the web page address is determined as the identification information of the web page content.
  • the identification information of the webpage content can be represented by a variety of information, and different information can be obtained in different ways, which effectively improves the robustness of obtaining the identification information and facilitates asynchronous access during subsequent webpage sharing.
  • the document is opened on the local end through the access address, and the screen of the sharer is larger, so the content that the sharer is explaining may not be seen by the sharer; vice versa, assuming that the sharer is a computer and the person being shared is a conference room, the conference room will see more content than the sharer;
  • the performance problem of event stream following is mainly the performance problem of cloud documents themselves, because the capabilities of cloud documents are not just "reading", but also include a lot of collaboration and editing capabilities, which will also be consumed in the process of following, but are not necessary for following itself.
  • This solution provides the possibility for the shared end with asynchronous access requirements to autonomously access the shared content based on the local end operation, so that the shared person can asynchronously access the online document, thereby improving the freedom of the shared person.
  • Some embodiments of this solution also solve the problem of follow-up performance existing in the related technology, and can meet higher document sharing requirements.
  • the content sharing scheme provided by some embodiments of the present disclosure sends the screen content showing the web page content to the shared end in response to the screen sharing trigger operation, so that the shared end displays the screen content; obtains the identification information of the web page content, and sends the identification information to the shared end, so that the shared end asynchronously displays the web page content corresponding to the identification information based on the asynchronous access operation.
  • the sharing end when the sharing end realizes web page content sharing through screen sharing, the sharing end can send the identification information of the web page content to the shared end, so that the shared end can asynchronously display the web page content under the asynchronous access operation based on the identification information, which solves the problem of high content limitation and low degree of freedom that may exist in the shared end, and realizes that the person who shares the web page content can asynchronously access the same web page content relative to the sharer, thereby improving the degree of freedom and content access experience of the person who shares the web page, and can meet higher content sharing requirements.
  • the content sharing method may further include: generating first preset information of the web page content after loading the web page content through a browser or switching a tab that displays the web page content; and adding the first preset information to the summary information of the web page content.
  • the first preset information can be generated in real time by the browser that displays the webpage content.
  • the first preset information generated when different users open the webpage content is different, and the specific format of the first preset information is not limited.
  • the first preset information can be represented by zero-width characters.
  • the first preset information may include tab information for marking the tab where the current sharing user displays the webpage content on the screen, that is, in which tab the webpage content is displayed. Different first preset information may be generated for the same webpage content displayed on different tabs.
  • the content sharing device loads the web page content for the first time through the browser, or after switching the tab page for displaying the web page content again, the browser can generate corresponding first preset information for the current web page content, and add the first preset information to the summary information of the web page content, so that the summary information can be obtained as the identification information of the web page content in the above step 102.
  • the above switching the tab page for displaying the web page content again means that the sharing end has already displayed the tab page of the web page content but switched to other pages, and then switched from other pages to the tab page where the web page content is located again.
  • the identification information of the web page content when the identification information of the web page content is the first preset information, it can be generated and added to the web page content during display, so that the web page content can be quickly located based on the first preset information, and specific tab information can also be added, which is helpful to achieve a better web page content display effect later.
  • the content sharing method may further include: before displaying the webpage content, adding the first preset information to the summary information of the webpage content.
  • the first preset information can be added when the cloud document is created.
  • the first preset information is pre-set information, such as visible characters or invisible characters, and is fixed information that does not change due to different opening times, opening users, or opening tabs.
  • the content sharing device may add the first preset information to the summary information of the web page content, so that the first preset information can be obtained as the identification information of the web page content in the above step 102. Since the content sharing device can be set at the sharing end or the service end, the first preset information can be added to the summary information of the web page content by the sharing end or the service end.
  • the identification information of the webpage content when the identification information of the webpage content is the first preset information, it can be added in advance. It is added to the summary information of the webpage content or stored in advance, so that the webpage content can be quickly located based on the first preset information later.
  • the shared end displays new web page content in response to a triggering operation on the page entry information.
  • the page entry information may be entry information for entering another page different from the page where the current web page content is located (for example, a link embedded in a web page), and the page entry information may be set in the form of a control or text, without limitation.
  • the shared terminal in the asynchronous access state may be understood as a shared terminal that currently asynchronously displays the web page content corresponding to the identification information based on an asynchronous access operation, that is, a shared terminal in a free browsing state.
  • the shared end can receive the shared user's trigger operation on the page entry information while being in an asynchronous access state, obtain the corresponding new web page content based on the web page address of the page entry information, and display the new web page content on a new page, thereby enabling the shared end to freely browse other web page content.
  • the shared end can not only achieve asynchronous access to the web page content being shared by the sharing end, but also, if the web page content also includes embedded page entry information of other pages, it can browse other pages asynchronously and freely based on the page entry information without being affected by the sharing end, thereby expanding the scope of asynchronous access and further improving the content access experience of the shared users.
  • the content sharing method may further include: in response to receiving an asynchronous access request sent by the shared end, sending the sharing end's access information to the web page content to the shared end, so that the shared end determines the initial rendering state of the web page content under the asynchronous access operation based on the access information.
  • the access information may represent the current access location of the web page content displayed by the sharing end when receiving the asynchronous access request, the currently displayed access content, and other information, that is, the access information reflects the specific part of the web page content browsed by the shared end before the asynchronous access operation.
  • the access information may be the tenth line of the web page content.
  • the shared end After detecting the asynchronous access operation of the shared user, the shared end can send an asynchronous access request to the content sharing device; after receiving the asynchronous access request, if the web page content is a cloud document with editing permissions, the content sharing device can obtain the access information of the sharing end to the web page content at this time, and send the access information to the shared end; after receiving the access information, the shared end can determine the initial rendering state of the web page content under the asynchronous access operation based on the access information, and after obtaining the web page content based on the identification information, render and display it in the initial rendering state, thereby realizing that when the shared end freely accesses the web page content, it can start browsing from the position that the sharing end is accessing when the asynchronous access operation is triggered.
  • the shared end can freely access the cloud document starting from the third line of the cloud document.
  • the web page content when the shared end switches from the screen sharing mode to the free browsing mode of the web page content, the web page content can be displayed starting from the position that the sharing end is accessing when the switch is made. After that, the shared end can independently display the web page content based on the operation of the shared user, but will not be affected by subsequent changes of the sharing end; and the web page content viewed by the shared user will not jump due to the switch from the screen sharing state to the asynchronous access state, thereby ensuring the browsing continuity of the shared user and improving the user's content access experience.
  • the content sharing method may further include: in response to a page switching operation of the sharing end, sending the switched screen content of the sharing end to the shared end in an asynchronous access state, so that the shared end switches from the asynchronous access state back to the screen sharing state and displays the switched screen content.
  • the page switching operation can be understood as an operation of switching the page where the currently displayed webpage content is located to another page.
  • the webpage content of the other page is displayed on the screen after the switch.
  • the shared terminal in the asynchronous access state can be understood as the shared terminal that currently asynchronously displays the webpage content corresponding to the identification information based on the asynchronous access operation, that is, the shared terminal in the free browsing state.
  • the screen sharing state can be a state in which the screen content of the sharing terminal is displayed to achieve the same content display synchronously with the sharing terminal.
  • the content sharing device can obtain the switched screen content displayed on the screen after switching to another page in the sharing end, and send the switched screen content to the shared end in the asynchronous access state; after receiving the switched screen content, the shared end can return to the screen sharing state from the asynchronous access state and display the switched screen content, forcing the return from the asynchronous access state to the web page content to continue to display the same screen content synchronously with the sharing end.
  • the shared end when the shared end is in the process of asynchronously accessing the web page content being shared by the sharing end, when the sharing end switches pages, the screen content after the switch can be sent to force the shared end to return to the screen sharing state, and the screen content after the switch can be displayed synchronously with the sharing end.
  • the shared end can passively switch from the asynchronous access state back to the screen sharing state, ensuring that the shared end can know and follow when the sharing end switches pages, further improving the content sharing experience of the shared end.
  • the content sharing method may further include: acquiring a synchronization access request sent by the shared end, and sending the current screen content of the sharing end to the shared end, so that the shared end displays the current screen content.
  • the synchronous access request may be a request sent by the shared terminal in the asynchronous access state after detecting a trigger operation of the shared user to return to the screen sharing state.
  • the current screen content may be the content obtained by collecting data from the screen of the sharing terminal at the moment of receiving the synchronous access request.
  • a synchronous access request can be sent to the content sharing device; the content sharing device can obtain the current screen content of the sharing end and send the current screen content to the shared end; the shared end can switch from the asynchronous access state back to the screen sharing content and display the current Screen contents.
  • the shared end can actively return to the screen sharing state based on the operation of the shared user and continue to share the screen with the sharing end, which is more in line with the actual needs of the user and further improves the content sharing experience.
  • the content sharing method may further include: in response to the asynchronous authorization triggering operation, setting an asynchronous access permission of the shared user to the webpage content.
  • the asynchronous authorization trigger operation can be understood as a specific operation for triggering the granting of asynchronous access rights to web page content to the shared user, and can include gesture control operations on preset asynchronous authorization controls (such as click, long press, double click, etc.), etc.
  • the operation of the sharing user allowing the shared user to access asynchronously can be regarded as the asynchronous authorization trigger operation.
  • the asynchronous access right can be understood as the right to allow the shared user to access the web page content asynchronously with the sharing user, that is, the shared user can freely access the target online document without being affected by the sharing user.
  • the asynchronous access right includes browsing rights, and can also include editing rights and/or sharing rights, etc. according to actual conditions.
  • the content sharing device After detecting the asynchronous authorization triggering operation, the content sharing device sends an asynchronous authorization request to the server of the web page content, and the server of the web page content can set the asynchronous access permission of the shared user to the web page content.
  • the content sharing device when the content sharing device is set at the sharing end, the content sharing device can send an asynchronous authorization request to the server after detecting the asynchronous authorization trigger operation.
  • the server here can be the content sharing server.
  • the content sharing server can send the asynchronous authorization request to the web content server, and the web content server can set the shared user's asynchronous access rights to the web content.
  • the content sharing device When the content sharing device is set at the content sharing server, the content sharing device can send an asynchronous authorization request to the web content server after detecting the asynchronous authorization trigger operation.
  • the web content server can set the shared user's asynchronous access rights to the web content.
  • the above-mentioned content sharing server can be a conference server when the content sharing method is applied to a multimedia conference.
  • the content sharing method further includes at least one of the following: triggering screen sharing at the sharing end; In the process of sharing, an asynchronous authorization trigger operation is performed; in response to the asynchronous access request of the shared end, the asynchronous access request information is presented on the sharing end so that the sharing end performs the asynchronous authorization trigger operation.
  • the content sharing method may also include: in response to receiving an asynchronous authorization trigger operation from a user with a preset identity, granting asynchronous access rights to at least some of the participants of the multimedia conference.
  • the above asynchronous authorization triggering operation can be implemented at multiple times such as during the sharing process, during the separation process, and during the multimedia conference process, without limitation.
  • the content sharing device When the content sharing device performs the asynchronous authorization triggering operation, it can be performed during the process of triggering screen sharing at the sharing end; and/or, after receiving the asynchronous access request from the shared end, the content sharing device can present the asynchronous access request information at the sharing end, and the sharing end can perform the asynchronous authorization triggering operation based on the asynchronous access request information.
  • the asynchronous access request information can be information that reminds the sharing user that there is a shared user requesting asynchronous access rights, and the specific information content and format are not limited.
  • the sharing end can perform the asynchronous authorization triggering operation by triggering the asynchronous access request information or other forms of operations.
  • the content sharing method When the content sharing method is applied to a multimedia conference, after the content sharing device detects the asynchronous authorization trigger operation of a user with a preset identity, the asynchronous access rights of at least some of the participants to the webpage content can be set, so that at least some of the participants can asynchronously access the webpage content as shared users in the subsequent screen sharing process.
  • the asynchronous authorization trigger operation is for one or more participants currently participating in the multimedia conference.
  • the user with the preset identity can be a sharing user or any user with authorization rights to the webpage content.
  • the asynchronous access rights of the shared user to the webpage content can be authorized in various scenarios, and the authorization form is more flexible, so that the shared user can quickly switch between the screen sharing state and the asynchronous access state.
  • the content sharing method may further include: sending an asynchronous authorization notification to the shared end, so that the shared end displays the asynchronous authorization notification and receives an asynchronous access operation based on the asynchronous authorization notification.
  • Asynchronous authorization notification can be used to notify the shared user that asynchronous access to the web page has been obtained.
  • the asynchronous access operation can be the triggering operation of the asynchronous authorization notification.
  • the shared end After receiving the asynchronous authorization notification, the shared end can display the asynchronous authorization notification and receive the asynchronous access operation of the shared user. Then, the shared end obtains the document access address of the target online document based on the identification information of the target online document, closes the currently displayed screen content, and switches to display the target online document in the document page based on the document access address. The shared end can browse the target online document autonomously.
  • FIG2 is a schematic diagram of a screen sharing provided by some embodiments of the present disclosure.
  • the figure takes the scene of a multimedia conference as an example, and shows a real-time conference interface 200 for screen sharing on the sharing end, and the webpage content takes a cloud document as an example.
  • screen content including a cloud document 201 can be displayed.
  • the cloud document 201 has been opened through a browser, and the title is "Sharing Panel-Outline"; and the real-time conference interface 200 can also include an area 203, which can be superimposed on the screen content for display, and can include an asynchronous authorization control 203.
  • the sharing user can grant the asynchronous access right of the cloud document 201 to the shared user, or cancel the asynchronous access right of the shared user to the cloud document 201 by triggering the asynchronous authorization control 203.
  • the area 202 can also include a variety of functional controls in the process of the multimedia conference, such as the microphone, camera, security, participants, chat, sharing, recording, expression and stop sharing in the figure. Since the screen is currently in the state of sharing, the sharing control is used for re-sharing, which is only an example.
  • FIG3 is a schematic diagram of another screen sharing provided by some embodiments of the present disclosure.
  • FIG3 is based on FIG2 and shows a real-time conference interface 300 for screen sharing by the shared end.
  • the real-time conference interface 300 can synchronize the same screen content as that displayed by the sharing end in FIG2, and displays a prompt message "Little A is sharing the screen"; after the sharing user grants the asynchronous access right of the cloud document 201 to the shared user and sends an asynchronous authorization notification to the shared end, the real-time conference interface 300 of the shared end can display an asynchronous authorization notification 301 and an asynchronous access control 302, wherein the asynchronous authorization notification 301 includes a prompt message "The sharer has been allowed to freely browse the document sharing panel-outline", prompting the shared user that the shared user has now obtained the asynchronous access right of the target online document, and the asynchronous access control 302
  • the component 302 includes a prompt message of "free browsing".
  • the shared user can switch from the current screen content to display
  • FIG4 is a schematic diagram of a web page content display provided by some embodiments of the present disclosure. As shown in FIG4, compared with FIG3, FIG4 switches from the real-time conference interface 300 of screen sharing to a document page 400 for displaying a cloud document.
  • the document page 400 displays a cloud document 401, which is the same as the cloud document 201 in the screen content in FIGS. 2 and 3. The difference is that the cloud document 301 in FIGS.
  • the document page 400 may also include an asynchronous access notification 402, which includes a prompt message "You have entered free browsing", which is used to prompt the user that the cloud document 401 can currently be accessed asynchronously.
  • a synchronous access control 403 can also be set in the document page 400.
  • the synchronous access control 403 can include a "return to screen sharing" prompt message.
  • the shared end can respond to the user's trigger operation on the synchronous access control 403 and return to the display screen content from the document page 400 including the cloud document 401, that is, return from the document page 400 to the real-time conference interface 300 of screen sharing in Figure 3.
  • setting the asynchronous access rights of the shared user to the web page content includes: if the verification determines that the screen content includes the preset anti-counterfeiting mark, then executing the setting of the asynchronous access rights of the shared user to the cloud document.
  • the preset anti-counterfeiting mark can be a mark used to prevent the cloud document from being forged and ensure the access security of the cloud document.
  • the specific manifestation of the preset anti-counterfeiting mark can include multiple forms, which are not limited to specific forms.
  • the preset anti-counterfeiting mark can include a dark watermark, a bright watermark, a QR code or a barcode, etc.
  • the content sharing device may add a preset anti-counterfeiting mark to the cloud document in advance. Then, when the content sharing device is set at the sharing end, the screen content is obtained. After that, the screen content can be sent to the server of the cloud document, and the server of the cloud document can determine whether the screen content includes a preset anti-counterfeiting mark through a preset verification program; and when the content sharing device is set on the server, and the server includes the server of the cloud document, the content sharing device can determine whether the screen content includes a preset anti-counterfeiting mark through a preset verification program; if so, the verification passes, and the asynchronous access permission of the shared user to the cloud document can be automatically set, or the asynchronous access permission of the shared user to the cloud document can be set in response to an asynchronous authorization operation; if the screen content does not include the preset anti-counterfeiting mark, the verification fails, the cloud document may be forged, and the setting of asynchronous
  • the content sharing device may crop the screen content to reduce the amount of image data and save time for verification.
  • the preset anti-counterfeiting mark is added in the middle of the upper half of the cloud document
  • the lower half of the screen content may be cropped, and the left and right areas of the screen content may also be cropped, leaving only the middle area of the upper half including the preset anti-counterfeiting mark.
  • Figure 5 is a schematic diagram of a preset anti-counterfeiting mark provided by some embodiments of the present disclosure.
  • an exemplary cloud document 500 is shown in the figure.
  • the cloud document 500 may include information such as a preset anti-counterfeiting mark 501, text, title, and avatar.
  • the preset anti-counterfeiting mark 501 in the figure is a clear watermark, and is located in the middle area of the title area of the cloud 500. This is only an example.
  • Figure 6 is a schematic diagram of a web content sharing provided by some embodiments of the present disclosure.
  • the figure takes the scene of a multimedia conference and the web content as a cloud document as an example to show the process of sharing a cloud document by the sharing end through screen sharing.
  • the bold arrows in the figure indicate the specific sharing process, the document represents a cloud document, and the identification information of the cloud document is used as the first preset information for explanation.
  • the figure includes the interaction process between the sharing end, the conference server, the cloud document server and the cloud document browser.
  • Specific process It may include: after the cloud document browser successfully loads the document or switches to the document tab, it may generate the first preset information of the document as a unique identity document (ID), that is, identification information. Then, the unique ID is added to the title of the document, and the unique ID is sent to the cloud document server.
  • the cloud document server may store the mapping relationship between the document and its unique ID.
  • the cloud document browser may also monitor the long chain message of the cloud document server to see if there is an event to turn on/off sharing.
  • the sharing end initiates a sharing window, that is, initiates screen sharing, and may periodically check the browser title to identify the unique ID, and query the conference server for a token based on the unique ID, that is, query which document corresponds to the unique ID.
  • the conference server obtains the query result from the cloud document server and may push the token information to the sharing end and each shared end.
  • the token information includes the unique ID of the document; the conference server may notify the cloud document browser to start sharing through the cloud document server, and transmit the unique ID, token and share_id of the document, where share_id indicates the sharing event of the document currently being shared.
  • the browser of the cloud document can load the shared code and logic, and send the user operation data (including the above-mentioned access information and other operation data) to the conference server through a short link, such as sending the access location.
  • the conference server can push the user operation data to all participants through a long link, that is, all shared terminals.
  • the shared terminal switches from the real-time conference interface of screen sharing to the document page of the document that can be browsed freely, the access location in the user operation data can be applied, and the document can be displayed from the access location.
  • the sharing terminal ends the sharing, it can notify the browser of the cloud document through the conference server and the cloud document server.
  • the browser of the cloud document can end the sharing logic and restore it to the state before loading the document or switching the document tab, and notify the cloud document server to delete the unique ID of the document.
  • FIG7 is a schematic diagram of a structure of a content sharing device provided in some embodiments of the present disclosure. As shown in FIG7 , the device includes:
  • the screen sharing module 701 is used to send the screen content showing the webpage content to the shared terminal in response to the screen sharing triggering operation, so that the shared terminal shows the screen content;
  • Asynchronous display module 702 used to obtain the identification information of the webpage content and The identification information is sent to the shared terminal, so that the shared terminal asynchronously displays the webpage content corresponding to the identification information based on an asynchronous access operation.
  • the asynchronous display module 702 includes a first acquisition unit, configured to:
  • the identification information is obtained based on first preset information pre-added in the summary information, or second preset information in the summary information is extracted as the identification information.
  • the first preset information is invisible characters or visible characters
  • the second preset information includes at least two of the title, author, and creation time.
  • the device further includes a first adding module, configured to:
  • the first preset information is added to the summary information of the webpage content.
  • the device further includes a second adding module, configured to:
  • the first preset information is added to the summary information of the webpage content.
  • the asynchronous display module 702 includes a second acquisition unit, configured to:
  • the screen content is subjected to text recognition and address extraction to obtain a web page address, and the web page address is determined as identification information of the web page content.
  • the device further includes a page module, which is used to:
  • the web page content includes page entry information
  • the web page address of the page entry information is sent to the shared end, so that the shared end displays new web page content based on the web page address of the page entry information.
  • the shared end displays new web page content in response to a triggering operation on the page entry information.
  • the device further comprises a passive switching module for
  • the switching screen content of the sharing terminal is The shared end is sent to the shared end in the asynchronous access state, so that the shared end switches from the asynchronous access state back to the screen sharing state and displays the switched screen content.
  • the device further comprises a synchronous switching module, for
  • a synchronous access request sent by the shared end is obtained, and the current screen content of the sharing end is sent to the shared end, so that the shared end displays the current screen content.
  • the device further includes an asynchronous authorization module, configured to:
  • an asynchronous access permission of the shared user to the webpage content is set.
  • the device further includes at least one of the following modules:
  • a first authorization module used for performing the asynchronous authorization triggering operation in the process of triggering screen sharing at the sharing end;
  • the second authorization module is used to respond to the asynchronous access request of the shared terminal and present the asynchronous access request information on the sharing terminal so that the sharing terminal performs the asynchronous authorization triggering operation.
  • the content sharing method is applied to a multimedia conference, and the device further includes a third authorization module, which is used to:
  • asynchronous access rights are granted to at least some of the participants of the multimedia conference.
  • the device further includes a notification module, configured to:
  • An asynchronous authorization notification is sent to the shared end, so that the shared end displays the asynchronous authorization notification and receives the asynchronous access operation based on the asynchronous authorization notification.
  • the asynchronous authorization module is used to:
  • the step of setting the asynchronous access permission of the shared user to the cloud document is executed.
  • the preset anti-counterfeiting mark includes a dark watermark, a bright watermark, a QR code or a barcode.
  • the content sharing device provided in the embodiments of the present disclosure can execute the content sharing method provided in any embodiment of the present disclosure, and has the corresponding functional modules and beneficial effects of the execution method.
  • the modules included are only divided according to functional logic, but are not limited to the above-mentioned division, as long as the corresponding functions can be realized; in addition, the specific names of the functional modules are only for the convenience of distinguishing each other, and are not used to limit the protection scope of the present disclosure.
  • the content sharing device can be implemented by software and/or hardware, and can generally be integrated in an electronic device.
  • the modules of the content sharing device can be implemented as software components executed on one or more general-purpose processors, or can be implemented as hardware such as programmable logic devices and/or application-specific integrated circuits for performing certain functions.
  • these modules can be embodied in the form of software products, which can be stored in non-volatile storage media.
  • These non-volatile storage media include computer devices (such as personal computers, servers, network devices, mobile terminals, etc.) to execute the content sharing method described in the embodiments of the present disclosure.
  • the above modules can also be implemented on a single device or distributed on multiple devices. The functions of these modules can be merged with each other or further divided into multiple sub-modules.
  • the embodiments of the present disclosure further provide a computer program product, including a computer program/instruction, which implements the content sharing method provided by any embodiment of the present disclosure when executed by a processor.
  • FIG8 is a schematic diagram of the structure of an electronic device provided in some embodiments of the present disclosure. Referring specifically to FIG8 below, it shows a schematic diagram of the structure of an electronic device 800 suitable for implementing the embodiments of the present disclosure.
  • the electronic device 800 in the embodiments of the present disclosure may include, but is not limited to, mobile terminals such as mobile phones, laptop computers, digital broadcast receivers, personal digital assistants (PDAs), tablet computers (PADs), portable multimedia players (PMPs), vehicle-mounted terminals (such as vehicle-mounted navigation terminals), etc., and fixed terminals such as digital televisions (TVs), desktop computers, etc.
  • PDAs personal digital assistants
  • PADs tablet computers
  • PMPs portable multimedia players
  • vehicle-mounted terminals such as vehicle-mounted navigation terminals
  • fixed terminals such as digital televisions (TVs), desktop computers, etc.
  • TVs digital televisions
  • the electronic device shown in FIG8 is merely an example and should not impose any limitations on the functions and scope of use of the embodiments
  • the electronic device 800 may include a processing device (e.g., a central processing unit, a graphics processing unit, etc.) 801, which may be configured to process data according to a program stored in a read-only memory (ROM) 802 or a program loaded from a storage device 808 to a random access memory (RAM) 803.
  • the processing device 801, the ROM 802 and the RAM 803 are connected to each other via a bus 804.
  • An input/output (I/O) interface 805 is also connected to the bus 804.
  • the following devices may be connected to the I/O interface 805: input devices 806 including, for example, a touch screen, a touchpad, a keyboard, a mouse, a camera, a microphone, an accelerometer, a gyroscope, etc.; output devices 807 including, for example, a liquid crystal display (LCD), a speaker, a vibrator, etc.; storage devices 808 including, for example, a magnetic tape, a hard disk, etc.; and communication devices 809.
  • the communication device 809 may allow the electronic device 800 to communicate wirelessly or wired with other devices to exchange data.
  • FIG. 8 shows an electronic device 800 with various devices, it should be understood that it is not required to implement or have all the devices shown. More or fewer devices may be implemented or have alternatively.
  • an embodiment of the present disclosure includes a computer program product, which includes a computer program carried on a non-transitory computer-readable medium, and the computer program contains program code for executing the method shown in the flowchart.
  • the computer program can be downloaded and installed from a network through a communication device 809, or installed from a storage device 808, or installed from a ROM 802.
  • the processing device 801 the above-mentioned functions defined in the content sharing method of the embodiment of the present disclosure are executed.
  • the computer-readable medium disclosed above may be a computer-readable signal medium or a computer-readable storage medium or any combination of the two.
  • the computer-readable storage medium may be, for example, but not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, device or device, or any combination of the above.
  • Computer-readable storage media may include, but are not limited to: an electrical connection with one or more wires, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or or any suitable combination of the above.
  • a computer-readable storage medium may be any tangible medium containing or storing a program that can be used by or in combination with an instruction execution system, device or device.
  • a computer-readable signal medium may include a data signal propagated in a baseband or as part of a carrier wave, which carries a computer-readable program code. Such propagated data signals may take a variety of forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination of the above.
  • a computer-readable signal medium may also be any computer-readable medium other than a computer-readable storage medium, which may send, propagate, or transmit a program for use by or in combination with an instruction execution system, device or device.
  • the program code contained on the computer-readable medium may be transmitted using any suitable medium, including but not limited to: wires, optical cables, radio frequencies (RF), etc., or any suitable combination of the above.
  • the client and server may communicate using any currently known or future developed network protocol, such as HyperText Transfer Protocol (HTTP), and may be interconnected with any form or medium of digital data communication (e.g., a communication network).
  • HTTP HyperText Transfer Protocol
  • Examples of communication networks include a local area network ("LAN”), a wide area network ("WAN”), an internet (e.g., the Internet), and a peer-to-peer network (e.g., an ad hoc peer-to-peer network), as well as any currently known or future developed network.
  • the computer-readable medium may be included in the electronic device, or may exist independently without being incorporated into the electronic device.
  • the above-mentioned computer-readable medium carries one or more programs.
  • the electronic device responds to the screen sharing trigger operation, sends the screen content displaying the web page content to the shared end, so that the shared end displays the screen content; obtains the identification information of the web page content, and sends the identification information to the shared end, so that the shared end asynchronously displays the web page content corresponding to the identification information based on the asynchronous access operation.
  • Computer program code for performing operations of the present disclosure may be written in one or more programming languages, or a combination thereof, including but not limited to object-oriented programming languages such as Java, Smalltalk, C++, and conventional procedural programming languages.
  • the program code may be executed entirely on the user's computer, partially on the user's computer, as a separate software package, partially on the user's computer and partially on a remote computer, or entirely on the remote computer or server.
  • the remote computer may be connected to the user's computer through any type of network, including a local area network (LAN) or a wide area network (WAN), or may be connected to an external computer (e.g., through the Internet using an Internet service provider).
  • LAN local area network
  • WAN wide area network
  • Internet service provider e.g., AT&T, MCI, Sprint, EarthLink, MSN, GTE, etc.
  • each square box in the flow chart or block diagram can represent a module, a program segment or a part of a code, and the module, the program segment or a part of the code contains one or more executable instructions for realizing the specified logical function.
  • the functions marked in the square box can also occur in a sequence different from that marked in the accompanying drawings. For example, two square boxes represented in succession can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, depending on the functions involved.
  • each square box in the block diagram and/or flow chart, and the combination of the square boxes in the block diagram and/or flow chart can be implemented with a dedicated hardware-based system that performs a specified function or operation, or can be implemented with a combination of dedicated hardware and computer instructions.
  • the units involved in the embodiments described in the present disclosure may be implemented by software or hardware, wherein the name of a unit does not, in some cases, constitute a limitation on the unit itself.
  • exemplary types of hardware logic components include: field programmable gate arrays (FPGAs), application specific integrated circuits (ASICs), application specific standard products (ASSPs), systems on chip (SOCs), complex programmable logic devices (CPLDs), and the like.
  • FPGAs field programmable gate arrays
  • ASICs application specific integrated circuits
  • ASSPs application specific standard products
  • SOCs systems on chip
  • CPLDs complex programmable logic devices
  • a machine-readable medium may be a tangible medium that may contain or store a program for use by or in conjunction with an instruction execution system, apparatus, or device.
  • a machine-readable medium may be a machine-readable signal medium or a Machine-readable storage medium.
  • a machine-readable medium may include, but is not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any suitable combination of the foregoing.
  • machine-readable storage media would include an electrical connection based on one or more wires, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.
  • RAM random access memory
  • ROM read-only memory
  • EPROM or flash memory erasable programmable read-only memory
  • CD-ROM portable compact disk read-only memory
  • magnetic storage device or any suitable combination of the foregoing.

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Abstract

一种内容共享方法、装置、设备及介质，其中该方法包括：响应于屏幕共享触发操作，将展示有网页内容的屏幕内容发送至被共享端，以使被共享端展示屏幕内容；获取网页内容的标识信息，并将标识信息发送至被共享端，以使被共享端基于异步访问操作异步地展示与标识信息对应的网页内容。

Description

一种内容共享方法、装置、设备及介质
相关申请的交叉引用
本申请是以中国申请号为202211280880.3、申请日为2022年10月19日的中国专利申请为基础，并主张其优先权，该中国专利申请的公开内容在此作为整体引入本申请中。
技术领域
本公开涉及计算机技术领域，尤其涉及一种内容共享方法、装置、设备及介质。
背景技术
随着互联网技术的不断发展，在线会议因其便捷和高效的特性得到广泛的应用。
在会议中，不同用户之间可以通过屏幕共享的方式来共享内容，但是该屏幕共享的方式在被共享端可能存在内容局限性高、自由度低的问题。
发明内容
为了解决上述技术问题，本公开提供了一种内容共享方法、装置、设备及介质。
本公开实施例提供了一种内容共享方法，所述方法包括：
响应于屏幕共享触发操作，将展示有网页内容的屏幕内容发送至被共享端，以使所述被共享端展示所述屏幕内容；
获取所述网页内容的标识信息，并将所述标识信息发送至所述被共享端，以使所述被共享端基于异步访问操作异步地展示与所述标识信息对应的所述网页内容。
本公开实施例还提供了一种内容共享装置，所述装置包括：
屏幕共享模块，用于响应于屏幕共享触发操作，将展示有网页内容的屏幕内容发送至被共享端，以使所述被共享端展示所述屏幕内容；
异步展示模块，用于获取所述网页内容的标识信息，并将所述标识信息发送至所述被共享端，以使所述被共享端基于异步访问操作异步地展示与所述标识信息对应的所述网页内容。
本公开实施例还提供了一种电子设备，所述电子设备包括：处理器；用于存储所述处理器可执行指令的存储器；所述处理器，用于从所述存储器中读取所述可执行指令，并执行所述指令以实现如本公开实施例提供的内容共享方法。
本公开实施例还提供了一种计算机可读存储介质，所述存储介质存储有计算机程序，所述计算机程序用于执行如本公开实施例提供的内容共享方法。
本公开实施例还提供了一种计算机程序产品，包括计算机程序，其中，所述计算机程序被处理器执行时实现如本公开实施例提供的内容共享方法。
本公开实施例提供的技术方案与现有技术相比具有如下优点：本公开实施例提供的内容共享方案，响应于屏幕共享触发操作，将展示有网页内容的屏幕内容发送至被共享端，以使被共享端展示屏幕内容；获取网页内容的标识信息，并将标识信息发送至被共享端，以使被共享端基于异步访问操作异步地展示与标识信息对应的网页内容。采用上述技术方案，共享端在通过屏幕共享实现网页内容共享的情况下，可以发送网页内容的标识信息至被共享端，以使被共享端能够基于该标识信息在异步访问操作下异步地展示网页内容，解决了被共享端可能存在的内容局限性高、自由度低的问题，实现了网页内容共享的被共享人能够相对共享人异步访问同一网页内容，提升被共享人的自由度和内容访问体验效果，能够满足更高的内容共享需求。
附图说明
结合附图并参考以下具体实施方式，本公开各实施例的上述和其他特征、优点及方面将变得更加明显。贯穿附图中，相同或相似的附图标记表示相同或相似的元素。应当理解附图是示意性的，原件和元素不一定按照比例绘制。
图1为本公开一些实施例提供的一种内容共享方法的流程示意图；
图2为本公开一些实施例提供的一种屏幕共享的示意图；
图3为本公开一些实施例提供的另一种屏幕共享的示意图；
图4为本公开一些实施例提供的一种网页内容展示的示意图；
图5为本公开一些实施例提供的一种预设防伪标记的示意图；
图6为本公开一些实施例提供的一种网页内容共享的示意图；
图7为本公开一些实施例提供的一种内容共享装置的结构示意图；
图8为本公开一些实施例提供的一种电子设备的结构示意图。
具体实施方式
下面将参照附图更详细地描述本公开的实施例。虽然附图中显示了本公开的某些实施例，然而应当理解的是，本公开可以通过各种形式来实现，而且不应该被解释为限于这里阐述的实施例，相反提供这些实施例是为了更加透彻和完整地理解本公开。应当理解的是，本公开的附图及实施例仅用于示例性作用，并非用于限制本公开的保护范围。
应当理解，本公开的方法实施方式中记载的各个步骤可以按照不同的顺序执行，和/或并行执行。此外，方法实施方式可以包括附加的步骤和/或省略执行示出的步骤。本公开的范围在此方面不受限制。
本文使用的术语“包括”及其变形是开放性包括，即“包括但不限于”。术语“基于”是“至少部分地基于”。术语“一个实施例”表示“至少一个实施例”；术语“另一实施例”表示“至少一个另外的实施例”；术语“一些实施例”表示“至少一些实施例”。其他术语的相关定义将在下文描述中给出。
需要注意，本公开中提及的“第一”、“第二”等概念仅用于对不同的装置、模块或单元进行区分，并非用于限定这些装置、模块或单元所执行的功能的顺序或者相互依存关系。
需要注意，本公开中提及的“一个”、“多个”的修饰是示意性而非限制性的，本领域技术人员应当理解，除非在上下文另有明确指出，否则应该理解为“一个或多个”。
本公开实施方式中的多个装置之间所交互的消息或者信息的名称仅用于说明性的目的，而并不是用于对这些消息或信息的范围进行限制。
相关技术中，不同用户之间可以通过屏幕共享的方式来共享网页内容，例如网页内容可以为云文档内容或普通网页内容，但是这种方式被共享人侧具有以下问题：清晰度低，会受限于共享端和/或被共享端的屏幕清晰度以及网络带宽；因被共享端对内容的可见范围受限于共享人的窗口大小，内容局限性高；自由度低，观看共享内容的节奏受限于共享人的操作，在自己更加关注的内容上无法做更多的停留，共享人无法同时照顾到多个被共享人不同的共享内容的访问需求。
相关技术不能解决上述问题，进而不能满足更高的文档共享需求。为了解决上述问题中的至少一些，本公开实施例提供了一种内容共享方法，下面结合具体的实施例对该方法进行介绍。
图1为本公开一些实施例提供的一种内容共享方法的流程示意图，该方法可以由内容共享装置执行，其中该装置可以采用软件和/或硬件实现，一般可集成在电子设备中。该方法应用于共享端或服务端，该服务端可以是后面将介绍的内容共享的服务端(例如会议服务端)，也可以是云文档的服务端。如图1所示，该方法包括：
步骤101、响应于屏幕共享触发操作，将展示有网页内容的屏幕内容发送至被共享端，以使被共享端展示屏幕内容。
屏幕共享可以理解为投屏，也即通过视频流的方式进行屏幕上展示内容的共享，实现多个用户同步浏览相同的内容。在一些应用场景中， 一个用户若发起屏幕共享，可以将当前的屏幕展示内容以视频流的方式发送给其他用户，其他用户可以同步呈现相同的屏幕展示内容。屏幕共享触发操作可以是在不同场景下触发屏幕共享的具体操作，例如场景可以为多媒体会议的场景，具体可以包括对页面(例如，多媒体会议客户端界面)中预设的屏幕共享控件的手势控制操作(如点击、长按、双击等)、语音控制操作或者表情控制操作等等，本公开实施例对此不作限制。
网页内容可以是共享用户当前通过浏览器打开具体网页之后展示在屏幕上的内容。本公开一些实施例中网页内容可以包括云文档或其他内容。云文档可以是能够通过浏览器能够访问的文档，例如该云文档可以具有对应的访问地址，共享用户通过在浏览器输入该访问地址可以显示该云文档；并且云文档能够存储在云端，并且该云文档支持具有编辑权限的用户进行编辑，具有编辑权限的用户可以为共享用户、被共享用户或对云文档具有管理权限的其他用户等。可选的或附加的，若共享用户对该云文档具有编辑权限，共享用户可在共享窗口中对该云文档进行编辑，从而，使得处于同步访问状态下的被共享用户可以在共享窗口中查看到被编辑的内容。附加的或可替代的，若被共享用户对该云文档具有编辑权限，则处于异步访问状态下的被共享用户可在共享窗口中对该云文档进行编辑，从而，使得共享用户和/或其他被共享用户可以在共享窗口中查看被编辑的内容。此外，本公开实施例的云文档的具体内容格式不限，例如云文档的内容格式可以包括文字、表格、日程、音频、视频等格式。其他内容可以是通过浏览器仅仅能够访问但不能编辑的内容，例如其他内容可以是互联网上获取的普通网页的内容，具体内容的格式也不限。
屏幕内容可以是对当前展示有网页内容的屏幕进行数据采集得到的内容，具体可以包括屏幕截图得到的图像和/或屏幕录屏得到的视频等。共享用户可以是主动发起屏幕共享的用户，对应的客户端为共享端。被共享用户可以是被动进行屏幕共享的用户，例如会议的除共享用户 之外的参会人中至少部分参会人可以为被共享用户，被共享用户对应的客户端为被共享端。本公开实施例的内容共享方式可以由共享端或服务端来执行，也即内容共享装置设置在共享端或服务端。
内容共享装置在接收到共享用户的屏幕共享触发操作之后，可以获取在共享端屏幕上展示有网页内容的屏幕内容，并将该屏幕内容发送至被共享端，以使被共享端与共享端同步呈现该屏幕内容。也即，被共享用户和共享用户可以同步浏览到屏幕内容中的网页内容。并且，当共享端对网页内容进行变动展示时，被共享端可以跟随实现变动展示。
步骤102、获取网页内容的标识信息，并将标识信息发送至被共享端，以使被共享端基于异步访问操作异步地展示与标识信息对应的网页内容。
在一些实施例中，标识信息可以是用于唯一表征网页内容的信息，用于在多个网页内容中定位一个网页内容。本公开一些实施例中网页内容的标识信息可以为预设的信息、网页内容的概要信息中的至少一种信息或者网页地址等等，具体可以根据实际情况确定。异步访问操作可以为针对共享端在屏幕上展示的网页内容，进行不受限于共享端的自由访问的操作。访问过程与共享端是异步的，不受共享端的影响，具体操作形式不限，例如该异步访问操作可以为对预设的异步访问控件的触发操作、对异步授权通知的触发操作或者对当前展示的屏幕内容的向上滑动操作或向下滑动操作等等。
本公开一些实施例中，内容共享装置可以基于网页内容的概要信息或上述屏幕内容获取网页内容的标识信息，之后可以将该标识信息发送至被共享端。被共享端接收到网页内容的标识信息之后，当检测到被共享用户的异步访问操作，可以基于该网页内容的标识信息获取网页内容的网页地址，基于网页地址将当前展示的屏幕内容切换为新的页面展示的网页内容。例如，可以将当前展示的屏幕内容关闭，并基于网页地址在新的页面展示网页内容。该网页内容的渲染状态可以从初始位置开始渲染展示，该初始位置可以理解为网页内容中首个内容所 在位置。例如，当网页内容为云文档，初始位置可以为云文档中首个文字或首个图片所在位置。该网页状态的渲染状态也可以从异步访问操作对应的位置开始渲染展示，该异步访问操作对应的位置可以是在异步访问操作被触发的时刻网页内容在屏幕内容中的访问位置。例如，当网页内容为云文档并且异步访问操作被触发时，屏幕内容中云文档的访问位置为第三行，则异步访问操作对应的位置即为第三行。之后内容共享装置可以响应于被共享用户的自由浏览操作对网页内容的渲染状态进行切换，也即对网页内容的具体展示位置进行切换。
示例性的，当网页内容为云文档，共享用户正在浏览该文档的第一行，被共享端获取云文档的网页地址，将当前展示的屏幕内容关闭，并基于网页地址在新的页面中展示该云文档，被共享用户可以自主地浏览该云文档，例如可以浏览该云文档的第十行，与共享用户不同；并且之后被共享用户还可以从该云文档的第十行切换到第二十行浏览。
在一些实施例中，获取网页内容的标识信息，可以包括：通过共享端的系统应用程序接口基于屏幕共享触发操作针对的浏览器窗口，获取网页内容的概要信息；基于概要信息中预先添加的第一预设信息得到标识信息，或者，提取概要信息中的第二预设信息作为标识信息。
在一些实施例中，概要信息可以是通过浏览器窗口能够获得的网页内容的相关信息。例如，概要信息可以包括当前的网页内容的标题内容以及其他浏览器中打开的页面标题等。下面以概要信息为当前的网页内容的标题内容为例进行说明。
第一预设信息可以为预先添加在网页内容的标题内容中的信息。第一预设信信息可以为不可见字符或可见字符，并且字符的格式不限。并且，第一预设信息的添加时机可以为共享用户展示网页内容之前，或者共享用户展示网页内容之后。第一预设信息的添加时机不同时其中包括的具体信息可以不同。第二预设信息可以由网页内容的至少两种信息组合得到，具体可以包括标题、作者、创建时间等中的至少两种。
由于浏览器中当一个标签(Tab)页处于前端显示状态时，这个页 面标题的部分会同样展示在浏览器窗口的标题上，共享端在通过浏览器展示网页内容之后，可以通过系统应用程序接口(Application Programming Interface，API)读取展示在屏幕共享触发操作针对的浏览器窗口的标题部分，内容共享装置可以获取到标题部分中网页内容的概要信息，之后可以提取概要信息中的第一预设信息或第二预设信息，如果提取到第一预设信息，说明当前的网页内容为具有编辑权限的网页内容，例如云文档，可以将该第一预设信息确定为网页内容的标识信息；或者，如果提取到第二预设信息，可以直接将该第二预设信息确定为网页内容的标识信息。
在另一些实施例中，获取网页内容的标识信息，可以包括：对屏幕内容进行文字识别和地址提取，得到网页地址，将网页地址确定为网页内容的标识信息。
在一些实施例中，网页地址可以是网页内容的资源地址。例如当网页内容为云文档时，该网页地址可以是云文档的文档资源的访问地址，通过该网页地址可以获取到云文档并展示。
内容共享装置在获取网页内容的标识信息时，还可以对屏幕内容进行文字识别，得到屏幕文本。具体文字识别的方式不限。例如可以通过预设的程序接口或光学字符识别(Optical Character Recognition，OCR)方式进行识别。之后可以从屏幕文本中基于网页地址的格式进行地址提取，将提取到的文本确定为网页地址，并将该网页地址确定为网页内容的标识信息。
上述方案中，网页内容的标识信息可以采用多种信息来表征，并且对于不同的信息可以通过不同的方式进行获取，有效提升了标识信息的获取鲁棒性，有助于后续的网页共享时的异步访问。
相关技术中，当网页内容为云文档，不同用户之间可以通过在线文档共享的方式来共享云文档，但是这种方式具有以下问题：内容一致性问题，由于屏幕或窗口大小不一致，导致共享人和被共享人看到的内容不一致，比如共享人为电脑，被共享人是手机，由于两端都基于云文档 的访问地址在本端打开文档，且共享人的屏幕更大，所以可能会出现共享人正在讲解的内容无法被共享人看到的情况；反之亦然，假设共享人是电脑，被共享人是会议室，则会出现会议室看到的内容比共享人更多的情况；事件流跟随的性能问题，主要是云文档本身的性能问题，因为云文档的能力不仅仅只是“阅读”，而包含大量协同、编辑的能力，这部分能力在跟随的过程中也会产生消耗，但却不是跟随本身必要的。
本方案提供了有异步访问需求的被共享端基于本端操作自主访问共享内容的可能，实现了文档共享的被共享人能够异步访问在线文档，提升被共享人的自由度。本方案的一些实施例还解决了相关技术中存在的跟随性能的问题，能够满足更高的文档共享需求。
本公开一些实施例提供的内容共享方案，响应于屏幕共享触发操作，将展示有网页内容的屏幕内容发送至被共享端，以使被共享端展示屏幕内容；获取网页内容的标识信息，并将标识信息发送至被共享端，以使被共享端基于异步访问操作异步地展示与标识信息对应的网页内容。采用上述技术方案，共享端在通过屏幕共享实现网页内容共享的情况下，可以发送网页内容的标识信息至被共享端，以使被共享端能够基于该标识信息在异步访问操作下异步地展示网页内容，解决了被共享端可能存在的内容局限性高、自由度低的问题，实现了网页内容共享的被共享人能够相对共享人异步访问同一网页内容，提升被共享人的自由度和内容访问体验效果，能够满足更高的内容共享需求。
在一些实施例中，内容共享方法还可以包括：在通过浏览器加载网页内容或者切换展示网页内容的标签页之后，生成网页内容的第一预设信息；将第一预设信息添加在网页内容的概要信息中。
在内容共享装置对网页内容具有编辑权限，第一预设信息的添加时机为共享用户展示网页内容之后的情况下，可以由展示网页内容的浏览器实时生成上述第一预设信息。不同用户打开该网页内容时生成的第一预设信息不同，并且第一预设信息的具体格式不限。例如第一预设信息可以采用零宽字符表示。可选的，当网页内容在至少两个标签页 中展示时，第一预设信息中可以包括标签页信息，用于标记当前共享用户在屏幕上展示网页内容所在的标签页，也即在哪个标签页中展示网页内容。针对不同标签页展示的同一网页内容可以生成不同的第一预设信息。
内容共享装置在上述步骤101之前，通过浏览器首次加载展示网页内容，或者再次切换展示网页内容的标签页之后，可以通过浏览器为当前的网页内容生成对应的第一预设信息，并将该第一预设信息添加在网页内容的概要信息中，以在上述步骤102中可以获取到该概要信息作为网页内容的标识信息。上述再次切换展示网页内容的标签页表示：共享端已经展示网页内容的标签页但切换到其他页面，之后再次从其他页面切换到网页内容所在标签页。
上述方案中，网页内容的标识信息为第一预设信息时，可以在展示时生成并添加在网页内容中，以使后续可以快速基于该第一预设信息定位网页内容，并且还可以增加具体的标签页信息，有助于后续实现更优的网页内容展示效果。
在一些实施例中，内容共享方法还可以包括：在网页内容展示之前，将第一预设信息添加在网页内容的概要信息中。
在内容共享装置对网页内容具有编辑权限，第一预设信息的添加时机为共享用户展示网页内容之前(例如当网页内容为云文档)的情况下，第一预设信息的添加时机可以为云文档创建时。第一预设信息为预先设置好的信息，例如可见字符或不可见字符，该信息为固定的信息，不会因打开时机、打开用户或打开标签页等不同而发生变化。
内容共享装置在网页内容展示之前，可以将第一预设信息添加在网页内容的概要信息中，以在上述步骤102中可以获取到该第一预设信息作为网页内容的标识信息。由于内容共享装置可以设置在共享端或服务端，可以由共享端或服务端将第一预设信息添加在网页内容的概要信息中。
上述方案中，网页内容的标识信息为第一预设信息时，可以提前添 加在网页内容的概要信息中或提前存储，以使后续可以快速基于该第一预设信息定位网页内容。
在一些实施例中，若网页内容中包括页面入口信息，被共享端响应于对页面入口信息的触发操作展示新网页内容。
在一些实施例中，页面入口信息可以是用于进入一个与当前的网页内容所在页面不同的另一页面的入口信息(例如，嵌入在网页中的链接)，该页面入口信息可以控件或文本的形式设置，具体不限。由于被共享端的数量可以为两个或两个以上，异步访问状态的被共享端可以理解为当前基于异步访问操作异步地展示与标识信息对应的网页内容的被共享端，也即处于自由浏览状态的被共享端。
当网页内容中包括页面入口信息时，被共享端在处于异步访问状态的同时，可以接收被共享用户对该页面入口信息的触发操作，基于页面入口信息的网页地址获取对应的新网页内容，并在新的页面上展示该新网页内容，实现了被共享端对其他网页内容的自由浏览。
上述方案中，被共享端不仅能够对共享端正在共享的网页内容实现异步访问，而且如果网页内容中还包括内嵌的其他页面的页面入口信息，能够基于该页面入口信息对其他页面进行异步地自由浏览，而不受共享端的影响，扩展了异步访问的范围，进一步提升了被共享用户的内容访问体验效果。
在一些实施例中，内容共享方法还可以包括：响应于接收到被共享端发送的异步访问请求，将共享端对网页内容的访问信息发送至被共享端，以使被共享端基于访问信息确定异步访问操作下，网页内容的初始渲染状态。
在一些实施例中，访问信息可以表征在接收到异步访问请求时，共享端展示的网页内容当前所处的访问位置、当前所展示的访问内容等信息，也即该访问信息反映了被共享端在异步访问操作之前共享端浏览网页内容的具体部分，例如访问信息可以为网页内容的第十行。当共享端提供了接口以支持共享端对共享的网页内容的操作信息被采集和 传输时，内容共享装置可以通过该接口获取到上述访问信息。初始渲染状态可以理解为被共享端在异步地展示网页内容时从具体哪个位置开始渲染并展示的状态。
被共享端在检测到被共享用户的异步访问操作之后，可以发送异步访问请求至内容共享装置；内容共享装置接收到该异步访问请求之后，如果网页内容为具有编辑权限的云文档，可以获取此时共享端对网页内容的访问信息，并将该访问信息发送至被共享端；被共享端接收到访问信息之后，可以基于访问信息确定异步访问操作下网页内容的初始渲染状态，并在基于标识信息获取网页内容之后将其以初始渲染状态进行渲染和展示，实现了被共享端对网页内容进行自由访问时可以从异步访问操作触发时刻共享端正在访问的位置开始进行浏览。
示例性的，当网页内容为云文档，异步访问操作时共享用户正在访问云文档的第三行，则被共享端可以云文档的第三行开始对云文档进行自由访问。
上述方案中，被共享端从屏幕共享的模式切换为对网页内容的自由浏览模式时，可以从切换时共享端正在访问的位置处开始对网页内容进行展示，之后被共享端可以基于被共享用户的操作对网页内容进行自主展示，但不会被共享端的后续变动所影响；并且使得被共享用户观看到的网页内容不会因为从屏幕共享状态切换到异步访问状态而发生跳变，保证了被共享用户的浏览连续性，提升了用户的内容访问体验效果。
在一些实施例中，内容共享方法还可以包括：响应于共享端的页面切换操作，将共享端的切换后屏幕内容发送至处于异步访问状态的被共享端，以使被共享端从异步访问状态切换回屏幕共享状态，并展示切换后屏幕内容。
在一些实施例中，页面切换操作可以理解为将当前展示的网页内容所在页面切换为另一个页面的操作，此时切换后屏幕内容中展示的是另一个页面的网页内容。由于被共享端的数量可以为两个或两个以 上，异步访问状态的被共享端可以理解为当前基于异步访问操作异步地展示与标识信息对应的网页内容的被共享端，也即处于自由浏览状态的被共享端。屏幕共享状态针对被共享端而言，可以是展示共享端的屏幕内容以实现与共享端同步展示相同内容的状态。
内容共享装置在检测到共享用户在共享端的页面切换操作之后，可以获取共享端中切换另一页面之后展示在屏幕上的切换后屏幕内容，并将该切换后屏幕内容发送至处于异步访问状态的被共享端；被共享端在接收到切换后屏幕内容之后，可以从异步访问状态返回屏幕共享状态，并展示切换后屏幕内容，强制从对网页内容的异步访问状态中返回继续与共享端同步展示相同的屏幕内容。
上述方案中，被共享端在对共享端正在共享的网页内容实现异步访问的过程中，当共享端进行页面切换时，可以发送切换后屏幕内容使被共享端强制返回屏幕共享的状态，同步与共享端展示切换后屏幕内容，被共享端可以被动从异步访问状态切换回屏幕共享状态，保证了被共享端能够在共享端切换页面时知晓并跟随，进一步提升了被共享端的内容共享体验效果。
在一些实施例中，内容共享方法还可以包括：获取被共享端发送的同步访问请求，将共享端的当前屏幕内容发送至被共享端，以使被共享端展示当前屏幕内容。
在一些实施例中，同步访问请求可以是处于异步访问状态的被共享端在检测到被共享用户的返回屏幕共享状态的触发操作之后发送的请求。当前屏幕内容可以是接收到同步访问请求的时刻对共享端的屏幕进行数据采集得到的内容。
被共享端基于异步访问操作异步地展示与标识信息对应的网页内容之后，处于异步访问状态时，在检测到被共享用户返回屏幕共享状态的触发操作之后可以发送同步访问请求至内容共享装置；内容共享装置可以获取共享端的当前屏幕内容，并将该当前屏幕内容发送至被共享端；被共享端可以从异步访问状态切换回屏幕共享内容，并展示当前 屏幕内容。
上述方案中，被共享端在对共享端正在共享的网页内容实现异步访问的过程中，可以基于被共享用户的操作主动返回屏幕共享状态，继续与共享端进行屏幕共享，更符合用户的实际需求，进一步提升了内容共享体验效果。
在一些实施例中，内容共享方法还可以包括：响应于异步授权触发操作，设置被共享用户对网页内容的异步访问权限。
在一些实施例中，异步授权触发操作可以理解为用于触发将网页内容的异步访问权限授予被共享用户的具体操作，可以包括对预设的异步授权控件的手势控制操作(如点击、长按、双击等)等等，例如可以将共享用户允许被共享用户异步访问的操作视为该异步授权触发操作。异步访问权限可以理解为允许被共享用户与共享用户异步的对网页内容进行访问的权限，也即被共享用户可以自由访问目标在线文档，而不受共享用户的影响。异步访问权限包括浏览权限，还可以根据实际情况包括编辑权限和/或分享权限等等。
内容共享装置在检测到异步授权触发操作之后，发送异步授权请求至网页内容的服务端，网页内容的服务端可以设置被共享用户对网页内容的异步访问权限。
具体的，当内容共享装置设置在共享端，内容共享装置在检测到异步授权触发操作之后，可以发送异步授权请求至服务端，此处的服务端可以为内容共享的服务端，内容共享的服务端可以向网页内容的服务端发送该异步授权请求，网页内容的服务端可以设置被共享用户对网页内容的异步访问权限。当内容共享装置设置在内容共享的服务端，内容共享装置在检测到异步授权触发操作之后，可以发送异步授权请求至网页内容的服务端，网页内容的服务端可以设置被共享用户对网页内容的异步访问权限。上述内容共享的服务端在内容共享方法应用在多媒体会议时可以为会议服务端。
可选的，内容共享方法还包括以下至少一者：在共享端触发屏幕共 享的过程中执行异步授权触发操作；响应于被共享端的异步访问请求，在共享端呈现异步访问请求信息，以使共享端执行异步授权触发操作。可选的，当内容共享方法应用于多媒体会议中，内容共享方法还可以包括：响应于接收到具有预设身份的用户的异步授权触发操作，向多媒体会议的至少部分参会者赋予异步访问权限。
上述异步授权触发操作可以在共享过程中、脱离共享过程以及多媒体会议过程等多个时刻实现，具体不限。
内容共享装置在执行异步授权触发操作时，可以在共享端触发屏幕共享的过程中执行；和/或，内容共享装置可以在接收到被共享端的异步访问请求之后，在共享端呈现异步访问请求信息，共享端基于该异步访问请求信息可以执行异步授权触发操作。该异步访问请求信息可以是提醒共享用户存在被共享用户请求异步访问权限的信息，具体信息内容和格式不限。共享端可以通过对该异步访问请求信息的触发操作或者其他形式的操作执行异步授权触发操作。
当内容共享方法应用于多媒体会议中时，内容共享装置检测到具有预设身份的用户的异步授权触发操作之后，可以设置至少部分参会者对该网页内容的异步访问权限，使得至少部分参会者在后续屏幕共享过程中作为被共享用户能够异步访问该网页内容。此时异步授权触发操作针对的是当前参与多媒体会议的一个或多个参会者。预设身份的用户可以是共享用户，也可以是任意一个对该网页内容具有授权权限的用户。
上述方案中，在多种场景下可以实现对被共享用户对网页内容的异步访问权限的授权，授权形式更加灵活，使得被共享用户可以快速实现屏幕共享状态与异步访问状态的切换。
在一些实施例中，内容共享方法还可以包括：发送异步授权通知至被共享端，以使被共享端展示异步授权通知，并基于异步授权通知接收异步访问操作。
异步授权通知可以是通知被共享用户已经获取到网页的异步访问 权限的通知，此时异步访问操作可以为该异步授权通知的触发操作。
被共享端接收到异步授权通知之后可以展示该异步授权通知，并接收被共享用户的异步访问操作。之后被共享端基于目标在线文档的标识信息获取目标在线文档的文档访问地址，并将当前展示的屏幕内容关闭，基于文档访问地址在文档页面中切换展示目标在线文档。被共享端可以自主地浏览该目标在线文档。
示例性的，图2为本公开一些实施例提供的一种屏幕共享的示意图。如图2所示，图中以多媒体会议的场景为例，展示了共享端进行屏幕共享的实时会议界面200，并且网页内容以云文档为例。在该实时会议界面200中可以展示包括云文档201的屏幕内容。云文档201已经通过浏览器打开，并且标题为“共享面板-提纲”；并且，该实时会议界面200中还可以包括区域203，该区域203可以叠加在屏幕内容之上进行展示，可以包括异步授权控件203。共享用户通过对该异步授权控件203的触发操作，可以实现将云文档201的异步访问权限授予被共享用户，或者取消被共享用户对云文档201的异步访问权限。此外，区域202中还可以包括多媒体会议的过程中的多种功能控件，例如图中的麦克风、摄像头、安全、参会人、聊天、共享、录制、表情和停止共享等，由于当前已经在屏幕共享的状态，因此共享控件用于进行重新共享，仅为示例。
示例性的，图3为本公开一些实施例提供的另一种屏幕共享的示意图，如图3所示，图3以图2为基础，展示了被共享端进行屏幕共享的实时会议界面300，该实时会议界面300中可以同步与图2中的共享端展示相同的屏幕内容，并且展示了“小A正在共享屏幕”的提示信息；在共享用户将云文档201的异步访问权限授予被共享用户并发送异步授权通知给被共享端之后，被共享端的实时会议界面300中可以展示异步授权通知301和异步访问控件302，该异步授权通知301中包括“共享人已允许自由浏览文档共享面板-提纲”的提示信息，提示被共享用户此时已经获得目标在线文档的异步访问权限，异步访问控 件302中包括“自由浏览”的提示信息，被共享用户通过对异步访问控件302进行触发操作，可以从当前屏幕内容切换展示图4所示的包括云文档201的文档页面400。
示例性的，图4为本公开一些实施例提供的一种网页内容展示的示意图，如图4所示，相较于图3，图4中从屏幕共享的实时会议界面300切换为展示云文档的文档页面400，该文档页面400中展示有云文档401，与图2、图3中屏幕内容中的云文档201相同，不同的是图2、图3中的云文档301是通过屏幕共享的方式展示，而云文档401是在被共享端中通过浏览器在页面中重新加载展示；该文档页面400中还可以包括异步访问通知402，该异步访问通知402中包括“您已进入自由浏览”的提示信息，用于提示用户当前能够对云文档401进行异步访问。此外，该文档页面400中还可以设置同步访问控件403，同步访问控件403中可以包括“回到屏幕共享”提示信息，被共享端可以响应于用户对该同步访问控件403的触发操作，从包括云文档401的文档页面400返回展示屏幕内容，也即从文档页面400返回图3中屏幕共享的实时会议界面300。
可以理解的是，上述图2、图3、图4中展示的界面仅为本公开一些实施例的内容共享的一种场景示意图，仅为示例，而非限定。
在一些实施例中，当网页内容为云文档并且云文档中包括预设防伪标记，设置被共享用户对网页内容的异步访问权限，包括：若校验确定屏幕内容中包括预设防伪标记，则执行设置被共享用户对云文档的异步访问权限。
在一些实施例中，预设防伪标记可以是用于防止云文档被伪造，保证云文档的访问安全性的标记。本公开实施例中预设防伪标记的具体表现形式可以包括多种，具体不限，例如预设防伪标记可以包括暗水印、明水印、二维码或条形码等。
本公开一些实施例中，内容共享装置可以预先在云文档中添加预设防伪标记。然后，当内容共享装置设置在共享端，获取到屏幕内容之 后，可以将该屏幕内容发送至云文档的服务端，云文档的服务端可以通过预设的校验程序判断屏幕内容中是否包括预设防伪标记；而当内容共享装置设置在服务端，服务端包括云文档的服务端，内容共享装置可以通过预设的校验程序判断屏幕内容中是否包括预设防伪标记；若是，则校验通过，可以自动设置被共享用户对云文档的异步访问权限，或者响应于异步授权操作设置被共享用户对云文档的异步访问权限；如果屏幕内容中不包括预设防伪标记，则校验未通过，云文档可能是伪造的，不支持设置异步访问权限。
可选的，在校验确定屏幕内容是否包括预设防伪标记之前，内容共享装置可以对屏幕内容进行裁剪，以减少图像数据量，节省校验的时间消耗。例如当预设防伪标记添加在云文档的上半部分的正中间，可以裁剪掉屏幕内容的下半部分，还可以裁剪掉屏幕内容左右部分区域，只保留上半部分包括预设防伪标记的中间区域。
示例性的，图5为本公开一些实施例提供的一种预设防伪标记的示意图，如图5所示，图中展示了一个示例性的云文档500，该云文档500中可以包括预设防伪标记501、正文、标题和头像等信息，图中预设防伪标记501为明水印，并且位置在云500的标题区域的中间区域，仅为示例。
上述方案中，通过在云文档中增加防伪标记的方式能够防止云文档的伪造，解决欺骗云文档访问权限的问题，保证了云文档的访问安全性。
接下来通过一个具体的实例对本公开一些实施例的内容共享方法进行进一步说明。示例性的，图6为本公开一些实施例提供的一种网页内容共享的示意图。如图6所示，图中以多媒体会议的场景和网页内容为云文档为例，展示了共享端通过屏幕共享的方式进行云文档共享的过程。图中加粗箭头表示具体的共享过程，文档表示云文档，以云文档的标识信息为第一预设信息为例进行说明。图中包括共享端、会议服务端、云文档的服务端和云文档的浏览器之间的交互过程。具体过程 可以包括：云文档的浏览器在文档加载成功或者切换到文档标签页后，可以生成该文档的第一预设信息作为唯一身份标识(Identity document，ID)，也即标识信息。之后将该唯一ID添加在文档的标题中，并将唯一ID发送给云文档的服务端。云文档的服务端可以将该文档和其唯一ID的映射关系进行存储。云文档的浏览器还可以监听云文档的服务端的长链消息，是否具有开启/关闭共享的事件。共享端发起共享窗口，也即发起屏幕共享，可以定时检查浏览器标题识别唯一ID，基于该唯一ID向会议服务端查询令牌(token)，也即查询唯一ID对应的文档是哪一个。会议服务端从云文档的服务端中获取到查询结果，可以推送token信息至共享端以及各被共享端。token信息中包括该文档的唯一ID；会议服务端可以通过云文档的服务端通知云文档的浏览器开启共享，并且传输该文档的唯一ID、token和share_id，share_id表示当前正在共享该文档的共享事件。云文档的浏览器可以加载共享代码与逻辑，并将用户操作数据(包括上述访问信息以及其他操作数据)通过短链发送至会议服务端，例如发送访问位置。会议服务端可以将用户操作数据通过长链推送给所有参会人，也即所有被共享端。被共享端在从屏幕共享的实时会议界面切换到自由浏览的该文档的文档页面时可以应用用户操作数据中的访问位置，从该访问位置处开始展示该文档。共享端结束共享之后，可以通过会议服务端、云文档的服务端通知云文档的浏览器，云文档的浏览器可以结束共享逻辑，并恢复到加载文档前或切换文档标签页前，并通知云文档的服务端删除该文档的唯一ID。
图7为本公开一些实施例提供的一种内容共享装置的结构示意图。如图7所示，该装置包括：
屏幕共享模块701，用于响应于屏幕共享触发操作，将展示有网页内容的屏幕内容发送至被共享端，以使所述被共享端展示所述屏幕内容；
异步展示模块702，用于获取所述网页内容的标识信息，并将所述 标识信息发送至所述被共享端，以使所述被共享端基于异步访问操作异步地展示与所述标识信息对应的所述网页内容。
可选的，所述异步展示模块702包括第一获取单元，用于：
通过共享端的系统应用程序接口基于所述屏幕共享触发操作针对的浏览器窗口，获取所述网页内容的概要信息；
基于所述概要信息中预先添加的第一预设信息得到所述标识信息，或者，提取所述概要信息中的第二预设信息作为所述标识信息。
可选的，所述第一预设信息为不可见字符或可见字符，所述第二预设信息包括标题、作者、创建时间中的至少两种。
可选的，所述装置还包括第一添加模块，用于：
在通过浏览器加载所述网页内容或者切换展示所述网页内容的标签页之后，生成所述网页内容的第一预设信息；
将所述第一预设信息添加在所述网页内容的概要信息中。
可选的，所述装置还包括第二添加模块，用于：
在所述网页内容展示之前，将第一预设信息添加在所述网页内容的概要信息中。
可选的，所述异步展示模块702包括第二获取单元，用于：
对所述屏幕内容进行文字识别和地址提取，得到网页地址，将所述网页地址确定为所述网页内容的标识信息。
可选的，所述装置还包括页面模块，用于：
若所述网页内容中包括页面入口信息，响应于接收到处于异步访问状态的被共享端通过触发所述页面入口信息发送的异步访问请求，将所述页面入口信息的网页地址发送至所述被共享端，以使所述被共享端基于所述页面入口信息的网页地址展示新网页内容。
可选的，若所述网页内容中包括页面入口信息，所述被共享端响应于对所述页面入口信息的触发操作展示新网页内容。
可选的，所述装置还包括被动切换模块，用于
响应于共享端的页面切换操作，将所述共享端的切换后屏幕内容 发送至处于异步访问状态的被共享端，以使所述被共享端从所述异步访问状态切换回屏幕共享状态，并展示所述切换后屏幕内容。
可选的，所述装置还包括同步切换模块，用于
获取被共享端发送的同步访问请求，将共享端的当前屏幕内容发送至所述被共享端，以使所述被共享端展示所述当前屏幕内容。
可选的，所述装置还包括异步授权模块，用于：
响应于异步授权触发操作，设置被共享用户对所述网页内容的异步访问权限。
可选的，所述装置还包括如下至少一个模块：
第一授权模块，用于在共享端触发屏幕共享的过程中执行所述异步授权触发操作；
第二授权模块，用于响应于所述被共享端的异步访问请求，在所述共享端呈现所述异步访问请求信息，以使所述共享端执行所述异步授权触发操作。
可选的，所述内容共享方法应用于多媒体会议中，所述装置还包括第三授权模块，用于：
响应于接收到具有预设身份的用户的异步授权触发操作，向所述多媒体会议的至少部分参会者赋予异步访问权限。
可选的，所述装置还包括通知模块，用于：
发送异步授权通知至所述被共享端，以使所述被共享端展示所述异步授权通知，并基于所述异步授权通知接收所述异步访问操作。
可选的，当所述网页内容为云文档并且所述云文档中包括预设防伪标记，所述异步授权模块用于：
若校验确定所述屏幕内容中包括所述预设防伪标记，则执行所述设置被共享用户对所述云文档的异步访问权限。
可选的，所述预设防伪标记包括暗水印、明水印、二维码或条形码。
本公开实施例所提供的内容共享装置可执行本公开任意实施例所提供的内容共享方法，具备执行方法相应的功能模块和有益效果。
值得注意的是，上述内容共享装置的实施例中，所包括的各个模块只是按照功能逻辑进行划分的，但并不局限于上述的划分，只要能够实现相应的功能即可；另外，各功能模块的具体名称也只是为了便于相互区分，并不用于限制本公开的保护范围。内容共享装置可以采用软件和/或硬件来实现，一般可集成在电子设备中。具体来说，内容共享装置的各个模块可以被实现为在一个或多个通用处理器上执行的软件组件，也可以被实现为诸如用于执行某些功能的硬件，诸如可编程逻辑器件和/或专用集成电路。在一些实施例中，这些模块可以体现为软件产品的形式，该软件产品可以存储在非易失性存储介质中。这些非易失性存储介质中包括使得计算机设备(例如个人计算机、服务器、网络设备、移动终端等)执行本公开实施例中描述的内容共享方法。在一些实施例中，上述模块还可以在单个设备上实现，也可以分布在多个设备上。这些模块的功能可以相互合并，也可以进一步拆分为多个子模块。
本公开实施例还提供了一种计算机程序产品，包括计算机程序/指令，该计算机程序/指令被处理器执行时实现本公开任意实施例所提供的内容共享方法。
图8为本公开一些实施例提供的一种电子设备的结构示意图。下面具体参考图8，其示出了适于用来实现本公开实施例中的电子设备800的结构示意图。本公开实施例中的电子设备800可以包括但不限于诸如移动电话、笔记本电脑、数字广播接收器、个人数字助理(Personal Digital Assistant，PDA)、平板电脑(PAD)、便携式多媒体播放器(Portable Media Player，PMP)、车载终端(例如车载导航终端)等等的移动终端以及诸如数字电视(Television，TV)、台式计算机等等的固定终端。图8示出的电子设备仅仅是一个示例，不应对本公开实施例的功能和使用范围带来任何限制。
如图8所示，电子设备800可以包括处理装置(例如中央处理器、图形处理器等)801，其可以根据存储在只读存储器(ROM)802中的程序或者从存储装置808加载到随机访问存储器(RAM)803中的程 序而执行各种适当的动作和处理。在RAM 803中，还存储有电子设备800操作所需的各种程序和数据。处理装置801、ROM 802以及RAM 803通过总线804彼此相连。输入/输出(I/O)接口805也连接至总线804。
通常，以下装置可以连接至I/O接口805：包括例如触摸屏、触摸板、键盘、鼠标、摄像头、麦克风、加速度计、陀螺仪等的输入装置806；包括例如液晶显示器(LCD)、扬声器、振动器等的输出装置807；包括例如磁带、硬盘等的存储装置808；以及通信装置809。通信装置809可以允许电子设备800与其他设备进行无线或有线通信以交换数据。虽然图8示出了具有各种装置的电子设备800，但是应理解的是，并不要求实施或具备所有示出的装置。可以替代地实施或具备更多或更少的装置。
特别地，根据本公开的实施例，上文参考流程图描述的过程可以被实现为计算机软件程序。例如，本公开的实施例包括一种计算机程序产品，其包括承载在非暂态计算机可读介质上的计算机程序，该计算机程序包含用于执行流程图所示的方法的程序代码。在这样的实施例中，该计算机程序可以通过通信装置809从网络上被下载和安装，或者从存储装置808被安装，或者从ROM 802被安装。在该计算机程序被处理装置801执行时，执行本公开实施例的内容共享方法中限定的上述功能。
需要说明的是，本公开上述的计算机可读介质可以是计算机可读信号介质或者计算机可读存储介质或者是上述两者的任意组合。计算机可读存储介质例如可以是——但不限于——电、磁、光、电磁、红外线、或半导体的系统、装置或器件，或者任意以上的组合。计算机可读存储介质的更具体的例子可以包括但不限于：具有一个或多个导线的电连接、便携式计算机磁盘、硬盘、随机访问存储器(RAM)、只读存储器(ROM)、可擦式可编程只读存储器(EPROM或闪存)、光纤、便携式紧凑磁盘只读存储器(CD-ROM)、光存储器件、磁存储器件、或 者上述的任意合适的组合。在本公开中，计算机可读存储介质可以是任何包含或存储程序的有形介质，该程序可以被指令执行系统、装置或者器件使用或者与其结合使用。而在本公开中，计算机可读信号介质可以包括在基带中或者作为载波一部分传播的数据信号，其中承载了计算机可读的程序代码。这种传播的数据信号可以采用多种形式，包括但不限于电磁信号、光信号或上述的任意合适的组合。计算机可读信号介质还可以是计算机可读存储介质以外的任何计算机可读介质，该计算机可读信号介质可以发送、传播或者传输用于由指令执行系统、装置或者器件使用或者与其结合使用的程序。计算机可读介质上包含的程序代码可以用任何适当的介质传输，包括但不限于：电线、光缆、射频(Radio Frequency，RF)等等，或者上述的任意合适的组合。
在一些实施方式中，客户端、服务器可以利用诸如超文本传输协议(HyperText Transfer Protocol，HTTP)之类的任何当前已知或未来研发的网络协议进行通信，并且可以与任意形式或介质的数字数据通信(例如，通信网络)互连。通信网络的示例包括局域网(“LAN”)，广域网(“WAN”)，网际网(例如，互联网)以及端对端网络(例如，ad hoc端对端网络)，以及任何当前已知或未来研发的网络。
上述计算机可读介质可以是上述电子设备中所包含的；也可以是单独存在，而未装配入该电子设备中。
上述计算机可读介质承载有一个或者多个程序，当上述一个或者多个程序被该电子设备执行时，使得该电子设备：响应于屏幕共享触发操作，将展示有网页内容的屏幕内容发送至被共享端，以使所述被共享端展示所述屏幕内容；获取所述网页内容的标识信息，并将所述标识信息发送至所述被共享端，以使所述被共享端基于异步访问操作异步地展示与所述标识信息对应的所述网页内容。
可以以一种或多种程序设计语言或其组合来编写用于执行本公开的操作的计算机程序代码，上述程序设计语言包括但不限于面向对象的程序设计语言—诸如Java、Smalltalk、C++，还包括常规的过程式程 序设计语言—诸如“C”语言或类似的程序设计语言。程序代码可以完全地在用户计算机上执行、部分地在用户计算机上执行、作为一个独立的软件包执行、部分在用户计算机上部分在远程计算机上执行、或者完全在远程计算机或服务器上执行。在涉及远程计算机的情形中，远程计算机可以通过任意种类的网络——包括局域网(LAN)或广域网(WAN)—连接到用户计算机，或者，可以连接到外部计算机(例如利用因特网服务提供商来通过因特网连接)。
附图中的流程图和框图，图示了按照本公开各种实施例的系统、方法和计算机程序产品的可能实现的体系架构、功能和操作。在这点上，流程图或框图中的每个方框可以代表一个模块、程序段、或代码的一部分，该模块、程序段、或代码的一部分包含一个或多个用于实现规定的逻辑功能的可执行指令。也应当注意，在有些作为替换的实现中，方框中所标注的功能也可以以不同于附图中所标注的顺序发生。例如，两个接连地表示的方框实际上可以基本并行地执行，它们有时也可以按相反的顺序执行，这依所涉及的功能而定。也要注意的是，框图和/或流程图中的每个方框、以及框图和/或流程图中的方框的组合，可以用执行规定的功能或操作的专用的基于硬件的系统来实现，或者可以用专用硬件与计算机指令的组合来实现。
描述于本公开实施例中所涉及到的单元可以通过软件的方式实现，也可以通过硬件的方式来实现。其中，单元的名称在某种情况下并不构成对该单元本身的限定。
本文中以上描述的功能可以至少部分地由一个或多个硬件逻辑部件来执行。例如，非限制性地，可以使用的示范类型的硬件逻辑部件包括：现场可编程门阵列(FPGA)、专用集成电路(ASIC)、专用标准产品(ASSP)、片上系统(SOC)、复杂可编程逻辑设备(CPLD)等等。
在本公开的上下文中，机器可读介质可以是有形的介质，其可以包含或存储以供指令执行系统、装置或设备使用或与指令执行系统、装置或设备结合地使用的程序。机器可读介质可以是机器可读信号介质或 机器可读储存介质。机器可读介质可以包括但不限于电子的、磁性的、光学的、电磁的、红外的、或半导体系统、装置或设备，或者上述内容的任何合适组合。机器可读存储介质的更具体示例会包括基于一个或多个线的电气连接、便携式计算机盘、硬盘、随机存取存储器(RAM)、只读存储器(ROM)、可擦除可编程只读存储器(EPROM或快闪存储器)、光纤、便捷式紧凑盘只读存储器(CD-ROM)、光学储存设备、磁储存设备、或上述内容的任何合适组合。
可以理解的是，在使用本公开各实施例公开的技术方案之前，应当依据相关法律法规通过恰当的方式对本公开所涉及的信息的类型、使用范围、使用场景等告知用户并获得用户的授权。
以上描述仅为本公开的较佳实施例以及对所运用技术原理的说明。本领域技术人员应当理解，本公开中所涉及的公开范围，并不限于上述技术特征的特定组合而成的技术方案，同时也应涵盖在不脱离上述公开构思的情况下，由上述技术特征或其等同特征进行任意组合而形成的其它技术方案。例如上述特征与本公开中公开的(但不限于)具有类似功能的技术特征进行互相替换而形成的技术方案。
此外，虽然采用特定次序描绘了各操作，但是这不应当理解为要求这些操作以所示出的特定次序或以顺序次序执行来执行。在一定环境下，多任务和并行处理可能是有利的。同样地，虽然在上面论述中包含了若干具体实现细节，但是这些不应当被解释为对本公开的范围的限制。在单独的实施例的上下文中描述的某些特征还可以组合地实现在单个实施例中。相反地，在单个实施例的上下文中描述的各种特征也可以单独地或以任何合适的子组合的方式实现在多个实施例中。
尽管已经采用特定于结构特征和/或方法逻辑动作的语言描述了本主题，但是应当理解所附权利要求书中所限定的主题未必局限于上面描述的特定特征或动作。相反，上面所描述的特定特征和动作仅仅是实现权利要求书的示例形式。

Claims (20)

  1. 一种内容共享方法，包括：
    响应于屏幕共享触发操作，将展示有网页内容的屏幕内容发送至被共享端，以使所述被共享端展示所述屏幕内容；
    获取所述网页内容的标识信息，并将所述标识信息发送至所述被共享端，以使所述被共享端基于异步访问操作异步地展示与所述标识信息对应的所述网页内容。
  2. 根据权利要求1所述的方法，其中，所述获取所述网页内容的标识信息，包括：
    通过共享端的系统应用程序接口基于所述屏幕共享触发操作针对的浏览器窗口，获取所述网页内容的概要信息；
    基于所述概要信息中预先添加的第一预设信息得到所述标识信息，或者，提取所述概要信息中的第二预设信息作为所述标识信息。
  3. 根据权利要求2所述的方法，其中，所述第一预设信息为不可见字符或可见字符，所述第二预设信息包括标题、作者、创建时间中的至少两种。
  4. 根据权利要求1-3所述的方法，还包括：
    在通过浏览器加载所述网页内容或者切换展示所述网页内容的标签页之后，生成所述网页内容的第一预设信息；
    将所述第一预设信息添加在所述网页内容的概要信息中。
  5. 根据权利要求1-4所述的方法，还包括：
    在所述网页内容展示之前，将第一预设信息添加在所述网页内容的概要信息中。
  6. 根据权利要求1-5所述的方法，其中，所述获取所述网页内容的标识信息，包括：
    对所述屏幕内容进行文字识别和地址提取，得到网页地址，将所述网页地址确定为所述网页内容的标识信息。
  7. 根据权利要求1-6所述的方法，其中，
    若所述网页内容中包括页面入口信息，所述被共享端响应于对所述页面入口信息的触发操作展示新网页内容。
  8. 根据权利要求1-7所述的方法，还包括：
    响应于接收到被共享端发送的异步访问请求，将所述共享端对所述网页内容的访问信息发送至所述被共享端，以使所述被共享端基于所述访问信息确定异步访问操作下所述网页内容的初始渲染状态。
  9. 根据权利要求1-8所述的方法，还包括：
    响应于共享端的页面切换操作，将所述共享端的切换后屏幕内容发送至处于异步访问状态的被共享端，以使所述被共享端从所述异步访问状态切换回屏幕共享状态，并展示所述切换后屏幕内容。
  10. 根据权利要求1-9所述的方法，还包括：
    获取被共享端发送的同步访问请求，将共享端的当前屏幕内容发送至所述被共享端，以使所述被共享端展示所述当前屏幕内容。
  11. 根据权利要求1-10所述的方法，还包括：
    响应于异步授权触发操作，设置被共享用户对所述网页内容的异步访问权限。
  12. 根据权利要求11所述的方法，还包括以下至少一者：
    在共享端触发屏幕共享的过程中执行所述异步授权触发操作；
    响应于所述被共享端的异步访问请求，在所述共享端呈现所述异步访问请求信息，以使所述共享端执行所述异步授权触发操作。
  13. 根据权利要求11-12所述的方法，其中，所述内容共享方法应用于多媒体会议中，所述方法还包括：
    响应于接收到具有预设身份的用户的异步授权触发操作，向所述多媒体会议的至少部分参会者赋予异步访问权限。
  14. 根据权利要求11-13所述的方法，还包括：
    发送异步授权通知至所述被共享端，以使所述被共享端展示所述异步授权通知，并基于所述异步授权通知接收所述异步访问操作。
  15. 根据权利要求11-14所述的方法，其中，当所述网页内容为云文档并且所述云文档中包括预设防伪标记，所述设置被共享用户对所述网页内容的异步访问权限，包括：
    若校验确定所述屏幕内容中包括所述预设防伪标记，则执行所述设置被共享用户对所述云文档的异步访问权限。
  16. 根据权利要求15所述的方法，其中，所述预设防伪标记包括暗水印、明水印、二维码或条形码。
  17. 一种内容共享装置，包括：
    屏幕共享模块，用于响应于屏幕共享触发操作，将展示有网页内容的屏幕内容发送至被共享端，以使所述被共享端展示所述屏幕内容；
    异步展示模块，用于获取所述网页内容的标识信息，并将所述标识信息发送至所述被共享端，以使所述被共享端基于异步访问操作异步地展示与所述标识信息对应的所述网页内容。
  18. 一种电子设备，包括：
    处理器；
    用于存储所述处理器可执行指令的存储器；
    所述处理器，用于从所述存储器中读取所述可执行指令，并执行所述指令以实现上述权利要求1-16中任一所述的内容共享方法。
  19. 一种计算机可读存储介质，其中，所述存储介质存储有计算机程序，所述计算机程序用于执行上述权利要求1-16中任一所述的内容共享方法。
  20. 一种计算机程序产品，包括计算机程序，其中，所述计算机程序被处理器执行时实现权利要求1-16任意一项所述的方法。
PCT/CN2023/118877 2022-10-19 2023-09-14 一种内容共享方法、装置、设备及介质 WO2024082888A1 (zh)

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