JP5685804B2 - Web application linkage method, linkage apparatus, and linkage program - Google Patents

Description

  The present invention relates to a method for linking a plurality of Web applications executed within a Web browser.

  A usage form called a composite application that uses a plurality of Web applications side by side has become widespread. In the composite application, convenience is improved by not only arranging a plurality of applications but also transferring data between the arranged applications.

  In mashups in composite applications, these applications can often be linked by passing data between the applications. However, in the conventional technology, it is usually necessary to create a function for data transfer in advance for an application to be linked, and it is possible to link them without modifying a general Web application. There wasn't.

  A method of transferring data between Web applications using a Web browser can be realized, for example, by monitoring a clipboard change caused by a copy operation performed on another Web application by JavaScript in the Web page. . However, many Web browsers prohibit or restrict the script from accessing the clipboard for security reasons. Therefore, many Web browsers cannot automate data transfer between Web applications by monitoring the clipboard.

As a related technique, a method of managing clipboard data and providing the data in response to a request from a computer on the download side has been proposed. (For example, Patent Document 1 and Patent Document 2)
As another related technique, a method of controlling copying of a part or all of an electronic document using a clipboard has been proposed. In this method, the document determination module determines whether or not each of the copy source document and the copy destination document is an important document. If the copy source document is a general document, the designated copy data is written to the clipboard provided by the OS. If the copy source document is an important document, the designated copy data is written to the important document clipboard by the clipboard suppression module. If the copy destination document is a general document, copy data is read from the clipboard. If the copy destination document is an important document, copy data is read from the important document clipboard by the clipboard suppression module. (For example, Patent Document 3)

JP 2002-288124 A JP 2002-288162 A International Publication WO2006 / 103752

  An object of the present invention is to facilitate data exchange between Web applications.

  A web application linkage method according to one aspect of the present invention is a method for linking first and second web applications provided from a web server to a web browser via a relay server. Injecting the first and second scripts into the application to send the first and second scripts to the Web browser; and in the relay server, in response to requests from the first and second scripts And a step of transferring data from the first Web application to the second Web application.

  When the first script detects a copy operation from the first Web application to the common memory area, the first script transmits copy source information for identifying a copy source and copy data to the relay server, and the common memory A procedure for transmitting paste destination information for identifying a paste destination and paste data to the relay server when a paste operation from the area to the second Web application is detected will be described. The second script transmits cooperation source identification information for identifying a cooperation source element in the first Web application and cooperation target data held in the cooperation source element to the relay server, and A procedure for passing the cooperation target data sent from the relay server to the second Web application based on transfer destination information sent from the relay server is described.

  Further, the relay server holds the copy source information and the paste destination information in association with each other when the copy data and the paste data match each other. In addition, the relay server transmits the cooperation target data to the Web browser when at least part of the cooperation source identification information matches the copy source information, and is held in association with the copy source information. The paste destination information is transmitted to the Web browser as the transfer destination information.

  According to one aspect of the present invention, data can be easily transferred between Web applications.

It is a figure which shows an example of the delivery of the data between Web applications. It is a figure which shows the flow of a cooperation detection. It is a figure which shows the flow of cooperation execution. It is a figure which shows the structure of a relay server. It is a figure which shows an example of the HTML document of a Web application. It is an Example of the copy detection part of a copy and paste operation detection script. It is a sequence diagram of a copy operation detection. It is an Example of the paste detection part of a copy and paste operation detection script. It is a sequence diagram of paste operation detection. It is a figure which shows the other sequence of paste operation detection. It is a display example of a cooperation management screen. It is an Example of a cooperation execution button. It is a sequence diagram of data transmission / reception by a text transmission / reception script. It is a flowchart which shows the key input determination in a browser. It is a flowchart which shows the browser operation | movement corresponding to the instruction | indication from a relay server. It is a figure explaining generalization of URI / XPath. It is a figure which shows the procedure which utilizes a text monitoring script. It is a figure which shows the hardware constitutions of the relay server of embodiment.

  In the web application linkage method of the embodiment, data is transferred from the first web application to the second web application. Hereinafter, an example of data transfer between Web applications will be described with reference to FIG.

  In the example shown in FIG. 1, two Web applications (address book 1 and mailer 4) are displayed on the Web browser. The Web application is not particularly limited, but is executed on a Web server, and the Web browser performs data input and processing result display. The address book 1 includes a name input box 2 and an address display box 3. The mailer 4 also includes an address display box 5 and a document input box 6. The operations of the address book 1 and the mailer 4 are as follows, for example.

(1) As shown in FIG. 1A, the user inputs “Yamada” in the name input box 2 and executes a search. The address request is transmitted to the web server.
(2) The address book application is executed on the Web server and returns a mail address as a search result for the address request. In this embodiment, the returned mail address is “yamada@example.com”. The mail address is displayed in the address display box 3 of the address book 1 as shown in FIG.

  (3) The user copies the mail address obtained from the address book 1 to the address input box 5 of the mailer 4 as shown in FIG. At this time, the mail address is copied from the address book 1 to the clipboard and pasted from the clipboard to the mailer 4.

  (4) As shown in FIG. 1D, the user inputs a document in the document input box 6 and transmits an email. This mail is transferred to the destination by a mailer application operating on the Web server.

  (5) Thereafter, as shown in FIG. 1E, the user also sends mail to “Tanaka”. In this case, the user inputs “Tanaka” in the name input box 2 and executes a search. As a result, a corresponding mail address (tanaka@example.com) is obtained and displayed in the address display box 3. At this time, in the Web application linkage method of the embodiment, the address display of the address book 1 from the address display box 3 of the address book 1 is automatically or semi-automatically performed without performing the copy and paste operation shown in FIG. The e-mail address is delivered to box 5.

  Note that the Web application linkage method of the embodiment is not limited to the linkage between the address book 1 and the mailer 4 described above, and can be applied to a procedure for transferring data between arbitrary Web applications. Copy and paste performed via the clipboard is one example, and the Web application linkage method of the embodiment transfers data using a common memory area between the first and second Web applications. It is applicable to the procedure to do.

Next, the flow of the cooperation method of the embodiment will be briefly described. The cooperation method of the embodiment includes a procedure for detecting cooperation and a procedure for executing cooperation.
FIG. 2 is a diagram illustrating a flow of a procedure for detecting cooperation in the cooperation method of the embodiment. Here, it is assumed that the Web server (address.example.com) 11 provides an address book application, and the Web server (mailer.example.com) 12 provides a mailer application. The client 20 includes a web browser and reads an address book application and a mailer application via the relay server 30. Furthermore, the client 20 includes a cooperation management screen 21 described later. Hereinafter, a procedure after the client 20 requests the address book application and the mailer application from the Web servers 11 and 12 will be described.

  (1) The relay server 30 reads the HTML and script of the address book application and mailer application from the Web servers 11 and 12, and performs address replacement processing for relay. At this time, the relay server 30 injects a copy and paste operation detection script, a link button display script, and a text transmission / reception script into each Web application (here, the address book application and the mailer application). Therefore, when the client 20 uses a Web application, the three scripts embedded in the Web application are called as necessary. In the example illustrated in FIG. 1, when the client 20 uses the address book 1 or the mailer 4, a copy and paste operation detection script, a link button display script, text transmission / reception is performed according to a user operation or an instruction from the relay server 30. The script is called and executed.

  (2) The user performs an address search using the address book 1 displayed on the browser of the client 20. This search request is transferred to the Web server 11 via the relay server 30. Then, the search result by the Web server 11 is returned to the address book 1 of the client 20 via the relay server 30.

  (3) When the user performs a mail address copy operation in the address book 1, a copy and paste operation detection script embedded in the address book 1 is called. When the copy and paste operation detection script detects that a copy operation has been performed in the address book 1, the copy and paste operation detection script notifies the relay server 30 of the copy operation. In response to this notification, the relay server 30 records information related to the copy operation in the final copy operation recording unit 31. At this time, the data copied from the address book 1 is once saved in the clipboard. The last copy operation recording unit 31 records information related to the last copy operation notified to the relay server 30 (that is, the latest copy operation).

  (4) When the user pastes the mail address taken out from the address book 1 into the mailer 4, the copy and paste operation detection script embedded in the mailer 4 detects that the paste operation has been performed on the mailer 4. The paste operation is notified to the relay server 30. The relay server 30 checks whether the notified paste operation corresponds to the copy operation recorded in the final copy operation recording unit 31. When the paste operation corresponds to the copy operation, the relay server 30 records a set of copy operation information and paste operation information related to a series of copy and paste operations in the history DB 32. The set of copy operation information and paste operation information recorded in the history DB 32 includes, for example, copy source information for identifying the copy source of the copy and paste operation and paste destination information for identifying the paste destination.

  (5) The user creates a mail text on the browser and requests transmission of the mail. This request is transferred to the Web server 12 via the relay server 30, and mail is transmitted to the destination.

  As described above, in the cooperation method of the embodiment, when a copy and paste operation is performed between Web applications in the client 20, the copy and paste operation detection script notifies the relay server 30 of the operation. The notified copy and paste operation is recorded in the history DB 32.

  FIG. 3 is a diagram illustrating a flow of a procedure for executing cooperation in the cooperation method of the embodiment. Here, it is assumed that the copy and paste operation is recorded in the history DB 32 by the procedure shown in FIG.

  (1) When a new copy and paste operation is recorded in the history DB 32, the relay server 30 uses the cooperation management screen 21 of the client 20 to determine whether or not to permit a cooperation process related to the copy and paste operation. To the user. In the example shown in FIG. 1, an inquiry is made as to whether or not cooperation relating to a copy and paste operation from the address book 1 to the mailer 4 is permitted.

(2) When the user permits cooperation, a copy and paste operation from the permitted address book 1 to the mailer 4 is registered in the cooperation definition DB 33 of the relay server 30.
(3) The relay server 30 transmits an instruction for displaying the cooperation execution button to the client 20. Then, the cooperation button display script is called in the client 20. At this time, for example, a link button display script embedded in the link source Web application (here, the address book 1 that is the copy source of the copy and paste operation) is called. The cooperation button display script provides an interface for automating (or semi-automating) a copy and paste operation permitted by the user in accordance with an instruction received from the relay server 30. For example, a cooperation execution button is displayed near the address display box 3 of the address book 1.

  (4) As shown in FIG. 1E, the user inputs another “name” using the address book 1 and executes a new address search. In response to this search request, the Web server 11 returns a corresponding mail address. As a result, the mail address corresponding to the new “name” is displayed in the address display box 3 of the address book 1.

  (5) When the user presses the cooperation execution button displayed in the address book 1, the text transmission / reception script embedded in the address book 1 is called. The text transmission / reception script transmits the text (cooperation target data) written in the designated area on the cooperation source Web application and information for specifying the copy source to the relay server 30. In the example shown in FIG. 1 (e), the mail address displayed in the address display box 3 of the address book 1 is transmitted to the relay server 30 as cooperation target data.

  (6) The relay server 30 refers to the cooperation definition DB 33 and determines the transfer destination of the text acquired from the cooperation source Web application. For example, when the link source in (5) above matches the copy source of the copy and paste operation registered in the link definition DB 33, the paste destination of the copy and paste operation is designated as the text transfer destination. The Here, both the link source and the copy source are the address display box 3 of the address book 1, and the address display box 5 of the mailer 4 is designated as the text transfer destination.

  (7) The relay server 30 transmits to the mailer 4 information for specifying the text and the paste destination acquired from the cooperation source Web application in (5) above. Then, the text transmission / reception script embedded in the mailer 4 displays the text received from the relay server 30 in the address display box 5 of the mailer 4.

  As described above, in the cooperation method of the embodiment, when the client 20 requests cooperation execution between Web applications, data to be transferred between Web applications is transmitted to the relay server 30 by the text transmission / reception script. Then, the relay server 30 refers to the cooperation definition DB 33 and transfers the data to the cooperation destination Web application. That is, the user can simply transfer the data between the Web applications via the relay server 30 by simply pressing the cooperation execution button without performing a copy and paste operation.

  FIG. 4 is a diagram illustrating the configuration of the relay server 30. The relay server 30 relays between the client and the Web servers 11 and 12. The client corresponds to, for example, the client 20 (window / (i) frame) shown in FIGS. 2 and 3 and includes a web browser. Applications provided by the Web servers 11 and 12 are, for example, an address book application and a mailer application shown in FIGS. 2 and 3. In this case, the address book 1 and the mailer 4 are displayed on the Web browser.

  The relay server 30 includes a proxy unit 41, a copy and paste history collection unit 44, a cooperation management unit 45, a cooperation button display instruction unit 46, a copy and paste execution instruction unit 47, a request distribution unit 48, a final copy operation recording unit 31, and a history. DB32 and linkage definition DB33 are provided. In FIG. 4, elements not directly related to the cooperation method of the embodiment are omitted.

  The proxy unit 41 includes a URI replacement unit 42 and a script injection unit 43. The URI replacement unit 42 replaces the URI between the Web servers 11 and 12 and the client. As described above, the script unit 43 injects a prepared script into each Web application when the Web application is provided from the Web servers 11 and 12 to the client. As described above, a copy and paste operation detection script, a cooperation button display script, and a text transmission / reception script are injected into each Web application. Therefore, the above three scripts are embedded in each Web application received by the client.

  FIG. 5 is a diagram illustrating an example of an HTML document of a Web application. The script injection unit 43, for example, injects the above three scripts at the end of the body part when providing the HTML document of the Web application to the client. However, the position where the script is injected is not limited to the end of the body part. For example, the script may be injected at the beginning of the body part.

  When receiving the copy operation information (information for identifying the copy source and copy data) from the copy and paste operation detection script of the copy source, the copy and paste history collection unit 44 records it in the final copy operation recording unit 31. Further, when receiving the paste operation information (information for identifying the paste destination and paste data) from the paste-destination copy-and-paste operation detection script, the copy-and-paste history collection unit 44 records it in the history DB 32 in association with the copy operation information. To do.

  The cooperation management unit 45 uses the cooperation management screen 21 of the Web browser to inquire the user whether to permit a cooperation operation (copy and paste processing) between Web applications recorded in the history DB 32. And the cooperation management part 45 records the permitted cooperation operation | movement in cooperation definition DB33.

  The cooperation button display instruction | indication part 46 will transmit the instruction | indication for displaying a cooperation execution button to the cooperation button display script of a cooperation origin, if a new cooperation operation | movement is recorded on the cooperation definition 33. FIG. Thereby, the cooperation button display script displays the cooperation execution button.

  Upon receiving copy operation information (information for identifying the copy source and copy data) from the link source text transmission / reception script, the copy and paste execution instruction unit 47 refers to the link definition DB 33 and determines the link destination. Then, the copy and paste execution instruction unit 47 transmits the received data to the determined text transmission / reception script of the cooperation destination. As a result, data is transferred from the cooperation source to the cooperation destination via the relay server 30.

  The request distribution unit 48 distributes the request received from the client to the corresponding destination. For example, access to the Web server is transferred to the proxy unit 41. The request from the copy and paste operation detection script is transferred to the copy and paste history collection unit 44.

  The last copy operation recording unit 31 records the last notified copy operation information. Specifically, the last copy operation recording unit 31 records, for example, the user ID related to the last copy operation, the date and time when the copy operation was executed, the copy source URI, the copy source XPath, and the copy data. The Past copy operation information may be discarded or may be stored in another storage area. The history DB 32 records copy operation information and paste operation information in association with each other. Specifically, for example, the user ID, the date and time when the copy and paste operation was executed, the copy source URI, the copy source XPath, the paste destination URI, and the paste destination XPath are recorded in the history DB 32. The cooperation definition DB 33 records the cooperation operation permitted by the user. Specifically, for example, the user ID, the date and time when the copy and paste operation was executed, the copy source URI, the copy source XPath, the paste destination URI, and the paste destination XPath are recorded in the cooperation definition DB 33.

  Note that the relay server 30 can operate as a Web application cooperation apparatus. Further, the history DB 32 and / or the linkage definition DB 33 can function as a holding unit that holds copy source information and paste destination information in association with each other. Further, the copy and paste history collection unit 44 and / or the link button display instruction unit 46 and / or the copy and paste execution instruction unit 47 serve as a relay control unit that relays data from the first Web application to the second Web application. Can work.

Hereinafter, the cooperation method of the embodiment will be described in detail.
<Detection of copy operation>
The copy and paste operation detection script monitors user key input. In this embodiment, the copy and paste operation detection script detects that the copy operation has been performed by detecting the input of “Ctrl + C”. According to this method, a copy operation can be detected even when a script is prohibited from accessing the clipboard on a Web browser. “Ctrl + C” corresponds to an instruction to copy designated data. In this embodiment, the copy operation is detected by monitoring the input of “Ctrl + C”, but the copy operation may be detected by other methods.

  FIG. 6 is an example of a copy detection unit of a copy and paste operation detection script. This copy section is executed when “Ctrl + C” is input by the user. That is, when any key is input by the user, the copyPasteMashup_onKeyDown function is called. This function checks whether the input key is "Ctrl + C". If the input key is “Ctrl + C”, descriptions 101 and 102 are executed. The description 101 acquires the text in the range selected in the copy operation. Further, the description 102 acquires the XPath in the range selected in the copy operation. The description 103 designates a path / CopyPasteMashup / Copy reserved in advance in the relay server 30 for the cooperation method of the embodiment. The description 104 transmits a URI, XPath, and text to the path specified in the description 103.

  FIG. 7 is a sequence diagram of the copy operation detection by the copy and paste operation detection script. Here, it is assumed that “Ctrl + C” is input by the user. And by this input, the copyPasteMashup_onKeyDown function is called.

  The copy and paste operation detection script checks whether the input key is “Ctrl + C”. Subsequently, the script acquires text within the copy target range specified by the user. In the example illustrated in FIG. 1, the mail address displayed in the address display box 3 of the address book 1 is acquired. Furthermore, this script acquires the XPath of the copy target range specified by the user. In the example shown in FIG. 1, an XPath indicating the address display box 3 of the address book 1 is acquired.

  Thereafter, the copy and paste operation detection script transmits a copy event (acquired text, URI of the copy source Web application, acquired XPath) to the copy and paste history collection unit 44 of the aggregation server 30. Then, the copy and paste history collection unit 44 records the received information in the final copy operation recording unit 31. On the browser side, after the call to the copyPasteMashup_onKeyDown function is completed, copy processing is executed, and data within the range specified by the user is stored in the clipboard.

<Detection of paste operation>
In this embodiment, the copy and paste operation detection script detects that a paste operation has been performed by detecting the input of “Ctrl + V”. According to this method, even when the script is prohibited from accessing the clipboard on the Web browser, the paste operation can be detected. “Ctrl + V” corresponds to an instruction for pasting data stored in the clipboard into a specified area. In this embodiment, the paste operation is detected by monitoring the input of “Ctrl + V”, but the paste operation may be detected by other methods.

  FIG. 8 is an example of a paste detection unit of a copy and paste operation detection script. This paste portion is executed when “Ctrl + V” is input by the user. That is, when the “Ctrl + V” key is released after any key is pressed by the user, the copyPasteMashup_onKeyUp function is called. This function checks whether the released key is "Ctrl + V". If the released key is “Ctrl + V”, descriptions 111 to 113 are executed. The description 111 acquires the element that is focused in the paste operation. Description 112 obtains the text of the input element that is in focus. The description 113 obtains the XPath of the focused element. Further, the description 114 specifies a path / CopyPasteMashup / Paste reserved in advance in the relay server 30 for the cooperation method of the embodiment. The description 115 transmits a URI, XPath, and text to the path specified in the description 114.

  FIG. 9 is a sequence diagram of the paste operation detection by the copy and paste operation detection script. Here, it is assumed that the user releases the key after pressing the “Ctrl + V” key. When the key operation is pressed, paste processing is executed on the browser. That is, data is pasted from the clipboard to the element specified by the user (the element that is focused). Also, the copyPasteMashup_onKeyUp function is called by releasing the key operation.

  The copy and paste operation detection script checks whether or not the released key is “Ctrl + V”. Subsequently, the script estimates that the text of the focused element is the text stored in the clipboard, and obtains the text of the focused element. In the example shown in FIG. 1C, the mail address is acquired from the address display box 5 of the mailer 4. In addition, this script gets the XPath of the focused element. In the example shown in FIG. 1C, an XPath indicating the address display box 5 of the mailer 4 is acquired.

  Thereafter, the copy and paste operation detection script transmits a paste event (acquired text, paste destination Web application URI, acquired XPath) to the copy and paste history collection unit 44 of the relay server 30. Then, the copy and paste history collection unit 44 checks whether the newly received paste event is a paste operation corresponding to the latest copy operation recorded in the final copy operation recording unit 31. If these copy operations and paste operations correspond to each other, they are recorded in the history DB 32 as copy operations and paste operations belonging to a series of copy and paste operations.

  FIG. 10 is a diagram showing another sequence of paste operation detection. In this sequence, before the paste process is executed (ie, after the “Ctrl + V” key is pressed and before the “Ctrl + V” key is released), the caret position of the text box and The position of the selection range is stored. Then, after the paste process is executed, the text is acquired from the previously stored position. According to this sequence, the paste text can be estimated with high accuracy.

<Detection of a set of copy and paste operations>
As described above, when the copy and paste operation detection script detects a copy operation, the copy source Web application URI, copy source XPath, and copy text are transmitted to the relay server 30. Then, the copy and paste history collection unit 44 of the relay server 30 records the copy source URI, the copy source XPath, and the copy tequipist together with the user ID in the final copy operation recording unit 31. Here, the latest copy operation information is recorded in the final copy operation recording unit 31.

  Further, when detecting the paste operation, the copy and paste operation detection script transmits the URI of the paste destination Web application, the paste destination XPath, and the paste text to the relay server 30. Then, the copy and paste history collection unit 44 compares the copy text of the latest copy operation recorded in the final copy operation recording unit 31 with the newly received paste text. If these copy text and paste text match each other, it is determined that a copy operation and a paste operation belonging to a series of copy and paste operations have been detected. In this case, the user ID, copy source URI, copy source XPath, paste destination URI, and paste destination XPath are recorded in the history DB 32.

  When a copy operation is performed in an application other than the copy and paste operation to be monitored (for example, a Web application or a desktop application that does not pass through the relay server 30), the data stored in the clipboard is changed. The In this case, the paste text detected by the copy and paste operation detection script is different from the copy text recorded in the final copy operation recording unit 31. Therefore, the copy and paste history collection unit 44 avoids linking the copy operation and the paste operation that do not belong to the same copy and paste operation by comparing the copy text and the paste text.

<Management of cooperation>
The cooperation management unit 45 of the relay server 30 presents a set of copy operations and paste operations detected by the copy and paste history collection unit 44 to the user of the Web browser. In this case, the cooperation management unit 45 transmits, for example, a copy and paste history shown in FIG. Here, the copy and paste history is extracted from the history DB 32 using the user ID. Then, the browser displays the copy and paste history received from the relay server 30 on the cooperation management screen 21. The copy and paste history includes the date and time when the copy and paste operation was performed, the copy source URI, the copy source XPath, the paste destination URI, and the paste destination XPath. Furthermore, “action (cooperation permission / deletion from history)” is displayed on the cooperation management screen 21 to inquire the user whether or not the copy and paste operation is to be automated.

  When automating the presented copy and paste, the user selects “cooperation permission”. When the cooperation management unit 45 detects that “cooperation permission” is selected, the cooperation management unit 45 adds the selected copy and paste operation to the cooperation definition DB 33. On the other hand, upon detecting that “delete from history” is selected, the cooperation management unit 45 deletes the selected copy and paste operation from the history DB 32.

  Note that the cooperation management screen 21 displays a list of copy and paste operations in which cooperation is enabled, as shown in FIG. 11B, in accordance with an instruction from the user or the like. Then, when the user wants to cancel the displayed linkage, the user designates “delete from linkage definition”. Then, the cooperation management unit 45 deletes the designated copy and paste operation from the cooperation definition DB 33.

<Linkage button display script>
When a new copy and paste operation is recorded in the cooperation definition DB 33, the cooperation button display instruction unit 46 of the relay server 30 pushes the display instruction of the cooperation execution button to the client. The push method is not particularly limited, but is, for example, Comet. This display instruction may include a cooperation source URI and a cooperation source XPath, for example.

  When the display instruction is received, the cooperation button display script displays a cooperation execution button near the element indicated by the copy source URI / copy source XPath recorded in the cooperation definition. For example, in the example shown in FIG. 1, the copy source URI is the address book 1 and the copy source XPath is the address display box 3. In this case, the cooperation button display script displays a cooperation execution button 7 next to the address display box 3 of the address book 1 as shown in FIG. The cooperation execution button 7 holds the XPath of the corresponding element.

  When the copy and paste operation is deleted from the cooperation definition DB 33, the corresponding cooperation execution button 7 is also deleted. This deletion process is also executed by the cooperation button display script.

<Text transmission / reception script>
FIG. 13 is a sequence diagram of data transmission / reception by a text transmission / reception script. Here, it is assumed that a copy and paste operation between Web applications is permitted by the user, and the cooperation execution button 7 is displayed on the copy source Web application. In FIG. 13, the cooperation source Web application is displayed on the browser 1, and the cooperation destination Web application is displayed on the browser 2.

  When the cooperation execution button is pressed in the cooperation source Web application, the text transmission / reception script is called. The text transmission / reception script acquires the text of the element specified by the copy source XPath held by the cooperation execution button. Then, the text transmission / reception script transmits cooperation source information (cooperation source URI, cooperation source XPath, acquired text) to a path (for example, / CopyPasteMashup / Send) reserved in advance on the relay server 30 by XMLHttpRequest. For example, in the example shown in FIG. 1 (e), the URI of the address book 1, the XPath of the address display box 3, and the mail address displayed in the address display box 3 are transmitted to the relay server 30.

  In the relay server 30, the copy and paste execution instructing unit 47 refers to the cooperation definition DB 33 in order to search for a transmission destination corresponding to the received cooperation source URI and cooperation source XPath. At this time, the copy definition URI 33 is searched for a copy source URI / XPath that matches the link source URI / XPath. Then, the paste destination URI / XPath corresponding to the hit copy source URI / XPath is extracted. For example, it is assumed that the cooperation definition information shown in FIG. 11B is recorded in the cooperation definition DB 33. And when “cooperation source URI: http: //a.test/index.html” “cooperation source XPath: // div [@ id = 'mail']” is received from the text transmission / reception script, “Paste destination URI: http: //b.test/1.html” “Paste destination XPath: // input [@ id = 'to']” is extracted.

  The copy and paste execution instruction unit 47 transmits the paste destination URI, the paste destination XPath, and the text received from the cooperation source to the cooperation destination browser 2. Then, the browser 2 sets the received text according to the received paste destination URI / XPath. As a result, the text instructed by the cooperation execution button in the cooperation source Web application is relayed by the relay server 30 and pasted into the element indicated by the cooperation destination XPath of the cooperation destination Web application. In the example shown in FIG. 1E, the mail address displayed in the address display box 3 of the address book 1 is transferred to the address display box 5 of the mailer 4 via the relay server 30.

  The paste destination URI, paste destination XPath, and text are pushed from the relay server 30 to the client. The push method is not particularly limited, but is, for example, Comet.

  As described above, according to the cooperation method of the embodiment, data transfer between Web applications is realized by an operation simpler than a general copy and paste operation. Here, the script for realizing the data transfer does not access the clipboard. That is, even in a system where access to the clipboard is prohibited or restricted, the linkage method of the embodiment can be realized. Therefore, according to the cooperation method of the embodiment, it is possible to improve user operability while ensuring security.

<Flowchart>
FIG. 14 is a flowchart showing key input determination in the browser. In this browser, a copy and paste operation detection script injected by the relay server 30 is set.

  The browser constantly monitors key input by the user, and when “Ctrl + C” is input, in step S1, a copy and paste operation detection script is called in the copy source Web application. The copy and paste operation detection script transmits the copy source URI, the copy source XPath, and the copy text to the relay server 30 as described with reference to FIGS. In step S2, copy processing is executed. The copy process is executed by the browser.

  When “Ctrl + V” is input, paste processing is executed in step S3. The paste process is executed by the browser. Subsequently, in step S4, a copy and paste operation detection script is called in the paste destination Web application. The copy and paste operation detection script transmits the paste destination URI, the paste destination XPath, and the paste text to the relay server 30 as described with reference to FIGS. If another key is input, the browser executes a process corresponding to the key in step S5.

  FIG. 15 is a flowchart showing a browser operation corresponding to an instruction from the relay server 30. The relay server 30 transmits an instruction to the browser by push communication such as Comet.

  In step S11, the content of the instruction received from the relay server 30 is determined. When the display instruction of the cooperation execution button is received from the cooperation button display instruction unit 46, the cooperation button display script of the cooperation source Web application is called in step S12. The link button display script specifies an element representing the link source based on the link source URI / XPath included in the display instruction. In step S13, the cooperation button display script displays the cooperation execution button 7 near the identified element.

  On the other hand, when the cooperation execution instruction is received from the copy and paste execution instruction unit 47, the text transmission / reception script of the cooperation destination Web application is called in step S14. The text transmission / reception script specifies an element representing the cooperation destination based on the cooperation destination URI / XPath included in the cooperation execution instruction. In step S15, the text transmission / reception script sets the text received together with the cooperation execution instruction as the identified element.

<Variation 1>
The relay server 30 may generalize the URI and XPath of the copy and paste operation. That is, when a plurality of copy source URI / XPath similar to each other are registered in the linkage definition DB 33, the relay server 30 may generalize them. For example, it is assumed that the following two copy and paste operations are registered in the cooperation definition DB 33 as shown in FIG. Here, only the source XPath is shown.
A: // tbody [@ id = 't'] / tr [1] / td [2]
B: // tbody [@ id = 't'] / tr [2] / td [2]
These two XPaths differ in “tr [1]” and “tr [2]”, but the other character strings are the same. That is, these two XPaths are similar to each other. In this case, the relay server 30 generates the following generalized copy source XPath and presents it to the user.
Generic: // tbody [@ id = 't'] / tr / td [2]
When the user permits the cooperation regarding the copy and paste operation including the generalized copy source XPath, the relay server 30 registers the copy and paste operation including the generalized copy source XPath in the cooperation definition DB 33. On the Web browser side, as shown in FIG. 16B, a cooperation execution button is displayed for one or a plurality of elements including the generalized copy source XPath. In this case, a cooperation execution button is displayed at least for the elements A and B shown in FIG. Further, in the example shown in FIG. 16B, a cooperation execution button is also displayed for the element C. The XPath of the element C is, for example, // tbody [@ id = 't'] / tr [3] / td [2]. In the embodiment shown in FIG. 16, XPath is generalized, but URI may be generalized.

  According to this cooperation method, copy and paste operations that may be performed in the future are inferred and registered in advance. That is, when a copy and paste operation is performed between similar Web applications, even a copy and paste operation that has not been performed in the past can be registered. Therefore, user convenience is further improved.

<Variation 2>
In the above-described embodiment, the relay server 30 injects three scripts into the Web application. However, a text monitoring script may be further injected. The text monitoring script monitors the element indicated by the copy source XPath of the copy and paste operation permitted to be linked by the user. For example, in the embodiment shown in FIG. 17, the address display box 3 of the address book 1 is monitored. Hereinafter, it is assumed that the element monitored by the text monitoring script is the address display box 3 of the address book 1.

  The text monitoring script periodically acquires the text displayed in the address display box 3 and stores it in the primary storage area. When the newly acquired text is different from the text stored in the primary storage area, the text monitoring script determines that the address display box 3 has been updated. That is, it is determined that a new address search has been executed using the address book 1. Then, the text monitoring script calls the text transmission / reception script. The subsequent processing is executed by a text transmission / reception script. The processing of the text transmission / reception script is as described above.

  In the embodiment shown in FIG. 17, the mail address “Yamada” is searched by the procedure shown in FIGS. 1A to 1D, and the mail is sent to “Yamada”. The case where the mail address of is searched is shown. In this case, the mail address “yamada@example.com” of “Yamada” is stored in the primary storage area. When the mail address “Tanaka” is searched, the mail address tanaka@example.com is set in the address display box 3. Therefore, the text monitoring script recognizes that the text in the address display box 3 has been changed, and calls the text transmission / reception script. Then, the text transmission / reception script transmits the mail address (and copy source URI, copy source XPath) displayed in the address display box 3 to the relay server 30. Thereafter, the above-described procedure is executed, and the mail address tanaka@example.com is set in the mailer 4.

  According to this cooperation method, the user simply searches for a mail address using the address book 1, and the search result is set in the mailer 4. That is, processing equivalent to data binding between Web applications is automatically realized. Therefore, user convenience is further improved.

<Hardware configuration of relay server 30>
FIG. 18 is a diagram illustrating a hardware configuration of the relay server 30 according to the embodiment. In FIG. 18, the CPU 101 causes the relay server to execute each processing procedure by executing a Web application cooperation program using the memory 103. The storage device 102 is, for example, a hard disk, and stores a Web application cooperation program. Note that the storage device 102 may be an external recording device. The memory 103 is a semiconductor memory, for example, and includes a RAM area and a ROM area.

  The reading device 104 accesses the portable recording medium 105 according to an instruction from the CPU 101. The portable recording medium 105 includes, for example, a semiconductor device (PC card or the like), a medium to / from which information is input / output by a magnetic action, and a medium to / from which information is input / output by an optical action. The communication interface 106 transmits / receives data via a network in accordance with instructions from the CPU 101. The input / output device 107 corresponds to, for example, a device that receives an instruction from a user.

The Web application cooperation program according to the embodiment is provided in the following form, for example.
(1) Installed in advance in the storage device 102.
(2) Provided by the portable recording medium 105.
(3) Download from the program server 110.

  And the relay server concerning embodiment is implement | achieved by running a web application cooperation program with the computer of the said structure.

1 Address Book 3 Address Display Box 4 Mailer 5 Address Display Boxes 11 and 12 Web Server 20 Client 21 Cooperation Management Screen 30 Relay Server 31 Final Copy Operation Recording Unit 32 History DB
33 Linkage definition DB
41 Proxy unit 42 URI replacement unit 43 Script injection unit 44 Copy and paste history collection unit 45 Cooperation management unit 46 Cooperation button display instruction unit 47 Copy and paste execution instruction unit 48 Request distribution unit

Claims (6)

A method for linking first and second Web applications provided from a Web server to a Web browser via a relay server,
Transmitting the first and second scripts to the web browser by injecting the first and second scripts into each web application in the relay server;
In the relay server, in response to a request from said first and second script has the step of passing data to the second Web application from the first Web application,
Wherein the first script upon detection of a copy operation to the common memory area from the first Web application procedure for sending a copy source information and copy data identifying the copy source to the relay server, and, the when the common memory area to detect a paste operation to the second Web application, describe a procedure for transmitting a paste destination information and paste data identifying the paste target to the relay server,
The second script is configured to transmit cooperation source identification information for identifying a cooperation source element in the first Web application and cooperation target data held in the cooperation source element to the relay server, and Based on the transfer destination information sent from the relay server, describe a procedure for passing the cooperation target data sent from the relay server to the second Web application,
The relay server is injected into the second Web application and the copy source information and copy data transmitted from the Web browser by the first script injected into the first Web application. the first script receives the paste target information and pastes data sent from the Web browser, wherein when the copy data and the paste data matches, the copy source information and the paste destination information in association with each unit held in,
Before SL relay server receives the collaboration source identification information and the coordination target data sent from the Web browser by the second script that is injected into the first Web application, the cooperation source identification information When at least part of the data matches the copy source information, the Web browser uses the data to be linked and the paste destination information held in the storage unit in association with the copy source information as the transfer destination information. to send to,
A Web application cooperation method characterized by the above. The web application linkage method according to claim 1,
A third script for inquiring the user whether or not to execute a cooperative operation for transferring data from the copy source to the paste destination and calling the second script when the execution of the cooperative operation is instructed, in the relay server, Web applications coordination method characterized by further comprising the step of injecting the first Web application. The web application linkage method according to claim 1,
Web application cooperation further comprising the step of injecting, into the first Web application, a fourth script that calls the second script when data of the cooperation source element changes Method. The web application cooperation method according to any one of claims 1 to 3,
The relay server holds the latest copy source information and copy data, and holds the latest copy source information and the paste destination information in association with each other when the latest copy data and the paste data match each other. A Web application cooperation method characterized by the above. A web application cooperation apparatus for linking first and second web applications provided from a web server to a web browser ,
A script injection unit that transmits the first and second scripts to the Web browser by injecting the first and second scripts into each Web application;
A relay control unit that relays data from the first Web application to the second Web application in response to requests from the first and second scripts;
The first script transmits a copy source information for identifying a copy source and copy data to the Web application cooperation apparatus when a copy operation from the first Web application to a common memory area is detected; and Describing a procedure for sending paste destination information and paste data for identifying a paste destination to the web application cooperation apparatus when a paste operation from the common memory area to the second web application is detected;
The second script is a procedure for transmitting cooperation source identification information for identifying a cooperation source element in the first web application and cooperation target data held in the cooperation source element to the web application cooperation device; and Describing a procedure for passing the cooperation target data sent from the web application cooperation device to the second web application based on transfer destination information sent from the web application cooperation device;
The Web application cooperation apparatus is injected into the second Web application and the copy source information and copy data transmitted from the Web browser by the first script injected into the first Web application. The paste destination information and the paste data transmitted from the Web browser by the first script are received, and when the copy data and the paste data match, the copy source information and the paste destination information are associated with each other. It further has a storage unit to hold,
The relay control unit receives the cooperation source identification information and the cooperation target data transmitted from the Web browser by the second script injected into the first Web application, and stores the cooperation source identification information. When at least part of the data matches the copy source information, the Web browser uses the data to be linked and the paste destination information held in the storage unit in association with the copy source information as the transfer destination information. A Web application cooperation apparatus, characterized by comprising: A web application linkage program for linking first and second web applications provided from a web server to a web browser via a relay server ,
To the relay server,
Sending the first and second scripts to the web browser by injecting the first and second scripts into each web application;
Passing data from the first web application to the second web application in response to requests from the first and second scripts,
The first script transmits a copy source information for identifying a copy source and copy data to the relay server when a copy operation from the first Web application to a common memory area is detected; and Describes a procedure for transmitting paste destination information for identifying a paste destination and paste data to the relay server when a paste operation from a common memory area to the second Web application is detected.
The second script is configured to transmit cooperation source identification information for identifying a cooperation source element in the first Web application and cooperation target data held in the cooperation source element to the relay server, and Based on the transfer destination information sent from the relay server, describe a procedure for passing the cooperation target data sent from the relay server to the second Web application,
In addition to the relay server,
Copy source information and copy data transmitted from the Web browser by the first script injected into the first Web application, and the first script injected into the second Web application Receiving paste destination information and paste data transmitted from the web browser, and storing the copy source information and the paste destination information in a storage unit in association with each other when the copy data and the paste data match; ,
The cooperation source identification information and the cooperation target data transmitted from the Web browser by the second script injected into the first Web application are received, and at least a part of the cooperation source identification information is the copy A step of transmitting to the web browser as the transfer destination information the paste destination information stored in the storage unit in association with the cooperation target data and the copy source information when the original information is matched. A Web application linkage program characterized by being executed .

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