CN102110083A - Client device and method for supporting online and offline editing of document - Google Patents

Abstract

The invention discloses a client device and method supporting online and offline document editing. The document editing method includes: downloading the document content and document status information of the server through the client device; marking the document as a locked state on the server to prohibit others from modifying the document content; editing the document content; and submitting the edited document. document content, and revoke the lock status of the document to allow others to modify the document content; the steps of submitting the edited document content and revoking the lock status of the document to allow others to modify the document content include: In the case of , submit the edited document directly to the server and revoke the lock status of the document to allow others to modify the content of the document; and when the client device is offline, the edited document will be submitted to the server The auto-commit commands are stored in the local auto-commit command queue of the client device.

Description

Client device and method supporting online and offline document editing

technical field

The invention relates to the technical field of prepress computer typesetting, in particular to a client device and method supporting online and offline document editing.

Background technique

With the development of computer technology, document editing systems based on C/S architecture have also been widely used, such as collaborative editing systems, documents are stored in the server, the client device downloads and edits the document, and then uploads it to the server. Involves a change in the state of the document flow. With the diversity of the working environment of the client device, it may be impossible for the client device to connect to the server in some cases. However, in many applications, it is often necessary to ensure that the client device can normally edit and submit work when the client device cannot connect to the server. At present, the offline editing function of the client device generally directly edits the downloaded document, and then uploads the document after the client device goes online to modify the document flow status.

Specifically, in the existing technology, the offline editing of the client device is limited to the files that the client device has downloaded locally, and it cannot be compared with the server's file in the offline state, or undo its own modification, restore Go to the initial state where editing started this time. Although the Undo/Redo function supported by the existing software can perform some restoration functions, if the program is closed and opened again, the modification cannot be restored.

Moreover, in the existing technology, the switching instruction of the document process cannot be submitted offline (for example, after the document writing is completed, it needs to be submitted to the next process, or it is determined that the document is unqualified and needs to be returned to the previous process), only It can be submitted manually after the client device is online.

Therefore, the existing technical solutions limit the applicable environment and the convenience of use of the document editor. It is hoped that an improved solution that can overcome the above-mentioned defects of the prior art can be proposed, and it can realize one or more of the following functions: offline submission of documents, undoing document modification in offline state, and ensuring correctness of downloaded and uploaded documents sex.

Contents of the invention

An object of the present invention is to provide a client device and method supporting online and offline document editing, which is used to ensure that the document editor client device can work both online and offline, and provide as complete functions as possible to expand the document The applicable environment of the editor enhances its convenience of use; specifically, the method and device according to the present invention can realize one or more of the following functions: offline submission of documents, undoing of document revisions in an offline state, and guaranteed downloading and the correctness of uploaded documents.

In order to achieve the above object, according to the first aspect of the present invention, a method for document editing is provided, the method includes the steps of: downloading the document content and document status information of the server through the client device; marking the document at the server Be in a locked state to prevent others from modifying the content of the document; edit the content of the document; and submit the edited content of the document, and revoke the lock status of the document to allow others to modify the content of the document; wherein, the submitted edited The step of modifying the content of the document and revoking the lock status of the document to allow others to modify the content of the document includes: submitting the edited document directly to the server when the client device is online, and revoking the lock status of the document To allow others to modify the content of the document; and when the client device is offline, the automatic submission instruction for submitting the edited document to the server is saved in the local automatic submission instruction queue of the client device. Wherein, "the client device is online" may specifically mean that the client device is connected to the server, and "client device is offline" may specifically mean that the client device is not connected to the server.

Specifically, the "automatic submission instruction" can specifically refer to an instruction that mainly includes the following operations: 1. Submitting and returning the edited document content to switch the status of the document process; 2. Unmarking the document to allow others to modify it , that is, "check in"; 3. Update the content and state information of the local baseDocument document on the client device. Also, "auto-commit command queue" may refer to a command queue including auto-commit commands. Here, it should be noted that baseDocument is used to refer to the document and document status information downloaded from the server, and the copy obtained by automatically copying the document and document status information.

In this way, the method of the present invention supports the operation of the flow state of the document in the offline state, and the modification of the content of the document and the operation of the state of the document can be automatically uploaded after the editor is online. The adoption of the method of the invention ensures that the document editing client device can still modify the document flow state in an offline state, so that the applicable environment of the document editor client device is more extensive and flexible.

In a preferred embodiment of the present invention, the method further includes: periodically or regularly detecting the automatic submission command queue and network status in the client device, if the automatic submission command queue is not empty, then execute in order when the network status is connected Autocommit instructions in the autocommit instruction queue. This provides a feasible solution to automatically upload changes to document content and operations on document status after the editor is online.

In a preferred embodiment of the present invention, after the step of downloading the document content and document state information of the server, the downloaded document content is compared with the document content of the server document, and if the document content is different, the document is re-downloaded. Specifically, it is possible to compare whether the contents of the documents are the same by comparing the MD5 check code of the document to be submitted with the MD5 check code of the server document.

The correctness of the downloaded content can be ensured by comparing the downloaded document content with the document content of the server document. In particular, using the MD5 check code to compare document content makes the comparison operation more convenient, simple and fast.

In a preferred embodiment of the present invention, the downloaded document content is automatically copied to obtain a copy before editing, and when it is necessary to undo the modification, the document content being modified is compared with the document content of the copy to obtain a copy. Undo changes.

In the method according to the present invention, by automatically copying the downloaded document content to obtain a copy, the document editor can check the modification of the document content even after being offline, and allow the revision of the document content to be undone. In this way, the user can implement recovery of undesired modifications.

In a preferred embodiment of the present invention, before submitting the document content, first compare the document content to be submitted with the document content of the server document, if they are the same, the document content will not be uploaded; if they are different, the document content will be uploaded. Specifically, it is possible to compare whether the contents of the documents are the same by comparing the MD5 check code of the document to be submitted with the MD5 check code of the server document.

Compare the MD5 check code of the document before uploading, which can prevent repeated uploading of the document and ensure that the content of the uploaded document is correct.

According to another aspect of the present invention, there is provided a client device for document editing, which is arranged to perform the method as described above. Those skilled in the art can understand that the client device according to the present invention can execute the above-mentioned method according to the present invention, thus, the client device according to the present invention can also realize all the beneficial effects achieved by the method of the present invention.

Specifically, the client device includes a controller, which is used to download the document content and document status information of the server through the client device; mark the document as a locked state at the server to prohibit others from modifying the document content; the editor, It is used to edit the content of the document; and the controller is also used to submit the edited document content, and cancel the lock status of the document to allow others to modify the content of the document; wherein, the controller submits the edited When the content of the updated document is used, it is used to directly submit the edited document to the server when the client device is online; and when the client device is offline, it will submit the edited document to the server The autocommit command is stored in a local autocommit command queue of the client device.

In a preferred embodiment, the controller is also used to regularly detect the automatic submission command queue in the client device and the network connection status between the client device and the server. If the automatic submission command queue is not empty, the network When the state is connected, the auto-commit instructions in the auto-commit instruction queue are executed in sequence.

According to yet another aspect of the present invention, a collaborative document editing system is provided, the collaborative document editing system adopts the above-mentioned client device, so the collaborative document editing system according to the present invention can also realize all the functions realized by the method of the present invention Beneficial effect.

Description of drawings

Fig. 1 is the local file storage structure of the client device according to the present invention;

Fig. 2 is the flow system environment applicable to the client device of the present invention;

Fig. 3 is a flow chart of the method of the present invention;

Fig. 4 is a flowchart of the check-in operation described in the present invention;

Fig. 5 is a flow chart of the process operation of the client device according to the present invention;

Fig. 6 is a flow chart of the local inspection operation queue of the client device according to the present invention;

Fig. 7 is a data structure diagram of the document state information stored locally by the client device according to the present invention; and

FIG. 8 is a structural block diagram of a client device according to the present invention.

The drawings are schematic and serve to illustrate the invention rather than limit it.

Detailed ways

Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

Fig. 1 is the local file storage structure of the client device of the present invention, as shown in Fig. 1: the file downloaded from the server is saved in the working directory, and the additional process information is stored in the xml file with the same name as the file in the directory. Also, make a copy of the document into the baseDocument directory.

Fig. 2 is a process system environment applicable to the system of the present invention. Specifically, in this embodiment, the process environment system is a collaborative document editing system environment. As shown in Figure 2, the document editing system has a document process, and each process has an independent responsible person who is responsible for editing the document. The responsible person uses the document editor to download the document submitted by the previous process on the client device, and submits it to the next process node after editing .

Fig. 3 is a flow chart of the method of the present invention, as shown in the figure:

Step 301: Download document content and document status information. An example of specific state information is shown in FIG. 7 , including server address, user name, and password (the password part has been encrypted when stored locally on the client device). The client device calculates the MD5 check code according to the downloaded file content. In this embodiment, the calculated and downloaded document MD5 check code is compared with the server document check code, and if the check code is different, the file is re-downloaded, and if the check code is the same, the document is considered to be the same. And, before the document is edited, the downloaded document is copied to obtain a copy of the document.

Among them, MD5 is an information digest algorithm, which can generate a unique MD5 verification code for any file. Once the content of the file is damaged or modified during transmission, the MD5 code of the file will change. , by verifying the MD5 of the file, it can be known whether the obtained file is complete. A professional document describing the MD5 algorithm can be obtained from http://www.ietf.org/rfc/rfc1321.txt, which was submitted to ieft by ronald l.rivest in August 1992.

Step 302: check out the document, mark the document as locked on the server side, and prohibit others from modifying it.

Step 303: The user checks whether the downloaded document meets the requirements of the process. If it does not meet the requirements of the current process, it can return to the previous process, and the person in charge of the previous process will continue to process. If it meets the requirements of the current process, enter the editing state. Wherein, "whether the document complies with the requirements of the process" may specifically mean, but is not limited to, checking whether the document has been processed in the previous process satisfactorily.

Step 304: The client device edits the document locally. During the editing process, it can compare with the content of the document copy obtained in step 301 at any time to obtain the modification, or cancel the modification and return to the original state.

Step 305: Enter the check-in operation process. For the detailed operation process, please refer to FIG. 4 and the specific description of FIG. 4 below.

Step 306: the operation flow of the client device submitting the document. For the detailed operation flow, please refer to FIG. 5 and the specific description of FIG. 5 below.

Fig. 4 is a flowchart of the check-in operation described in the present invention, as shown in Fig. 4:

Step 401: Save the document.

Step 402: Determine whether the client device is online, and if so, go to step 403. If offline, go to step 406.

Step 403: Upload the document content, compare the MD5 verification value of the client device and the server document before uploading, if the verification value is the same, do not upload again.

Step 404: Undo the document on the server Unmark the document on the server, allowing others to modify it, that is, to check in.

Step 405: Update the content and state information of the local baseDocument of the client device. Go to step 407. Specifically, the local baseDocument document of the client device is a copy of the server document, so when the server document changes, the document changes accordingly. In step 405, since updating the local baseDocument is after uploading the document content and checking in, the <Checksum>14c88bd49089a8d51181275d76d99862</Checksum> of the document state information shown in Figure 7 will be changed to the checksum of the new document content code. <IsCheckout>True</IsCheckout> indicating the checkout status will also be changed to <IsCheckout>False</IsCheckout>.

Step 406: Add the operation instructions related to the automatic submission of the edited document into the local operation instruction queue of the client device.

Step 407: Modify the status of the working directory document and mark it as checked in.

It should be noted that the term "check out" mentioned in the process means "mark the document as locked on the server side and prohibit others from modifying it". Moreover, those skilled in the art can understand that, generally, the client device performs a checkout operation after downloading the document content correctly. , and the term "check-in" correspondingly means "unmark the server-side document to allow others to modify it". Likewise, those skilled in the art can understand that the client device generally performs a check-in operation after uploading the edited document content correctly.

Fig. 5 is a flow chart of the process operation of the client device according to the present invention, as shown in Fig. 5:

Step 501 judges whether the client device is online, if online, proceeds to step 502, and if the client device is offline, proceeds to step 504.

Step 502: Send a process operation instruction to the server, thereby instructing the document to enter the next process state. Specifically, the main operation of the process operation instruction can be "submit the main file, and enter the next process" or "return the document, and return to the previous process; and, the process operation instruction can also include "revoke the document mark, allow others to Modify" to enable process transfer after unmarking a document.

Step 503: Update the local baseDocument document state information of the client device. Thus, the operation ends. Specifically, in step 503, since updating the local baseDocument is after sending the flow operation to the server, the <DocumentFlowId>2</DocumentFlowId> in Figure 7 will be changed to a new node value.

Step 504: Save the process operation instruction into the local automatic submission instruction queue of the client device.

Fig. 6 is another process operation flow chart of the client device according to the present invention, specifically, it shows the process of the client device automatically submitting documents, for example, this process can be automatically executed when the client device is turned on, or Automatically run when starting a certain software, etc. As shown in Figure 6:

Step 601: Determine whether the operation queue in the client device is empty, if it is empty, go back to step 601 after a predetermined delay, if not, go to step 602. Wherein, the predetermined delay can be set according to specific conditions.

Step 602: Determine whether the client device is connected to the server, if not, go back to step 601 after a delay, and go to step 603 if connected.

Step 603: Take out an operation instruction from the operation queue in sequence.

Step 604: Execute the operation instruction. Operate according to the type of operation instruction, see Figure 4 and Figure 5 for the detailed execution process, to complete the submission of the edited document content, modify the document flow status to allow others to modify, update the local baseDocument document content and Status information, and instructions to enter the next document editing process and other operations.

The present invention also provides a client device, which can execute the above-mentioned operation flow to execute the method of the present invention. Specifically, for example, the implementation form of the client device may be an electronic device with corresponding functions such as a personal computer (PC), a notebook computer, and a palmtop computer. Moreover, the present invention does not require to specifically limit the form of the client device, but various functions of the client device may be realized by software, hardware or a combination of the two.

FIG. 8 is a structural block diagram of a client device according to the present invention. It can be seen that the client device 10 of this embodiment includes a controller 20 and an editor 30 . The editor 30 is used for editing the content of the downloaded document, and the controller 20 is used for performing other functions (for example, downloading the document, marking, checking the network connection status, submitting the document, etc.) other than editing. In an alternate embodiment, editor 30 may be incorporated into controller 20 as part of controller 20 . Also, the client device may include a memory for storing the downloaded document and its copy, but alternatively, the downloaded document and its copy may also be stored in the internal memory of the controller 20 .

Although the present invention has been described in detail with specific examples, these examples are for illustrating the present invention rather than limiting the present invention. Those skilled in the art can understand that, according to specific application environments and application requirements, some steps described in the example embodiments may be omitted. For example, for a specific application that only wants to realize the function of automatic submission without the function of revocation of document modification, the step of copying may not be performed.

And, although the client device according to the present invention is described by dividing the client device into two modules of the controller and the editor, this is only an example and does not limit the present invention. Those skilled in the art can understand that different functions of the same module can be implemented by multiple separate sub-modules, and similarly, the functions of different modules can be integrated into one module.

It will be apparent to those skilled in the art that various changes and modifications can be made in the present invention without departing from the scope of the invention. The described embodiments are only used to illustrate the invention, not to limit it. The invention is not limited to the described embodiments, but only by the appended claims.

Claims (10)

1. method that is used for documents editing, described method comprises step:

Document content and document status information by client terminal device download service end;

At service end mark the document is that lock-out state is made amendment to document content to forbid other people;

Document content is edited; And

Submission behind editor document content and the lock-out state of cancelling the document to allow other people document content is made amendment;

It is characterized in that, described submission behind editor document content and the lock-out state of cancelling the document comprise with the step that allows other people that document content is made amendment:

Under the online situation of client terminal device, directly submit document behind editor to, and the lock-out state of cancelling the document is made amendment to document content to allow other people to service end; And

Under the situation of client terminal device off-line, then will submit to the automatic submission instruction of the document behind editor to be saved in the automatic submission instruction queue of this locality of client terminal device to service end.

2. the method for claim 1, wherein described method also comprises:

Automatic submission instruction queue in the regular detection client terminal device and the network connection state between client terminal device and the service end, if it is not empty submitting instruction queue automatically to, then when being communicated with, network state carries out the automatic submission instruction in the automatic submission instruction queue in order.

3. the method for claim 1, wherein, described method also is included in after the step of the document content of download service end and document status information, and the document content that download is obtained and the document content of service end document compare, if the document content difference is then downloaded document again.

4. the method for claim 1, wherein, described method also was included in before document content is edited, the document content of being downloaded is copied automatically to obtain a copy, and document content is being carried out in the edit step, when needs are cancelled when revising, the document content revised and the document content of described copy are compared, to cancel modification.

5. the method for claim 1, wherein before submitting document content to, if the document content that relatively will submit to and the document content of service end document earlier are identical then no longer upload document content; If difference then upload document content.

6. as claim 3 or 5 described methods, wherein, come the comparison document content whether identical with service end document MD5 check code by the MD5 check code that compares the document that to submit to.

7. client terminal device that is used for documents editing, described client terminal device comprises:

Controller is used for document content and document status information by client terminal device download service end; At service end mark the document is that lock-out state is made amendment to document content to forbid other people;

Editing machine is used for document content is edited; And

Described controller also is used to submit to the document content behind editor, and the lock-out state of cancelling the document is made amendment to document content to allow other people;

It is characterized in that described controller is used under the online situation of client terminal device when the document content of submitting to behind editor, directly to the document of service end submission behind editor; And under the situation of client terminal device off-line, then will submit to the automatic submission instruction of the document behind editor to be saved in the automatic submission instruction queue of this locality of client terminal device to service end.

8. client terminal device as claimed in claim 1, wherein said controller also is used for regularly detecting the automatic submission instruction queue of client terminal device and the network connection state between client terminal device and the service end, if it is not empty submitting instruction queue automatically to, then when being communicated with, network state carries out the automatic submission instruction in the automatic submission instruction queue in order.

9. client terminal device as claimed in claim 1, wherein said controller also was used for before document content is edited, the document content of being downloaded is copied automatically to obtain a copy, and document content is being carried out in the edit step, when needs are cancelled modification, the document content revised and the document content of described copy are compared, to cancel modification.

10. one kind has been adopted the cooperated documents editing system as the described client terminal device of one of claim 7 to 9.

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