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Web Dynpro ABAP 116 Posts 1 hellip 3 4 5 6 7 8

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Direct Mapping Reverse Mapping

Please refer to picture 626 Please refer to picture 628

Component Component

Y_EM_CONTEXT Y_EM_CONTEXT_RM

1 get records from Database 1 get records from Database

2 doesnt contain any view 2 a view to embed interface view

3 define a node STUDENT with attribute 3 define usage of component Y_EM_LAYOUT_RM

Interface Node Yes (can access by other component) 4 define a InterfaceController_usage mapping Student to that of

Y_EM_LAYOUT_RM

Input Element NO (cant Input by other comp ) 5 In WDDOINIT append some records to Node STUDENT

4 In WDDOINIT append some records to Node STUDENT Y_EM_LAYOUT_RM

Y_EM_LAYOUT 1 show records in a table

1 show records in a table 2 define a node STUDENT with attribute

2 define usage of component Y_EM_CONTEXT Interface Node Yes (can access by other component)

3 mapping the two STUDENT from Y_EM_CONTEXT and

Y_EM_LAYOUT in tab context

Input Element Yes ( Input by Y_EM_CONTEXT_RM)

372 View s 0 Comments Tags w eb_dynpro mapping direct reverse

Direct and Reverse mapping

Posted by he longyang Apr 10 2013

Below are the highlights of the new SAP Corbu theme for Web Dynpro ABAP

Corbu Theme for WebDynpro ABAP

Posted by Tarun Telang Apr 8 2013

Highlights of the new SAP Corbu theme for Web Dynpro ABAP

A new modern simple looking theme with improved overall look

Neutral design with light panes and flat surfaces

Reduced contrasts amp gradients create a light and clear user interface

Color Reduced use of neutral and dimmed colors increases the compatibility with other SAP designss

Structure Less structuring and separating elements to support a flat and lightweight appearance

Correct Prioritization Visual focus is on the content instead of on navigation and functions

Tables amp Containers Reduced colors and line contrast creates a less block-like appearance

Increased font sizes to improve readability

Readability Enlarged and easier to read typography for example larger font

Enhanced look for specific controls

new panel stack visualizations

new calendar design

Large set of new icons and pictograms that are modernized with new theme without affecting existing icons in

older themes -

new icon style with 16 x16 pixel size icons

All icons referenced as ~Icon are automatically replaced based on the used theme

Icons from the old icon library referenced as ICON_ or nn are not automatically replaced

Prerequisite

SAP Corbu theme is available for the following support packs

NW 731 SP02

the new theme is delivered with further optimizations in NW 731 SP03 and SP04

How To Apply Corbu Theme to Web Dynpro for ABAP application

To apply or activate the newly-delivered SAP CORBU theme you have to simply append the URL parameter

ampsap-theme=sap_corbu to your application

(otherwise by default Wedynpro for ABAP applications use the SAP Tradeshow Plus theme )

Development Effort Required

the Corbu theme works for all WD ABAP applications out of the box with no additional development effort

Please perform visual verification of UIs to ensure no truncation of texts or misalignment occurs due to increased font

sizes and line height

3806 View s 17 Comments Tags w eb_dynpro w ebdynpro w eb_dynpro_abap w ebdynpro_abap abap_w d

Hi

can any one provide clarity on these plz

Thanks

Aashish

146 View s 0 Comments Tags w eb_dynpro

Difference among component configurationapplication configration and controller configuration

Posted by SAP WD Mar 13 2013

Please find the list of step need to perform to achieve the handling of event from source view to target view

Raising the event from one view and handling thesame event in another view

Posted by Om Awasthi Feb 1 2013

Step 1 Identify the source view from where the event will be triggered

Step 2 Identify the target view where the event should be handled

Step 3 Register the listener name handle name controller and event name in the targeted view

middot Listener name ndash name of the view where even will be handled

middot Handler name ndash the method in the target view which will handle the event raised in source view

middot Controller name ndash Name of the component controller used

middot Event name ndash Name of the event which is raised

Sample code for target view written in DOINIT method

DATA lo_componentcontroller TYPE REF TO ig_componentcontroller

lo_api_componentcontroller TYPE REF TO if_wd_component

lo_api_componentcontroller-gtadd_event_handler(

listener_name = V_MAIN

handler_name = OK_HANDLE_MAIN

controller_name = COMPONENTCONTROLLER

event_name = OK_CLICKED_MAIN )

Step 4 you want the target view to handle the source view event just raise the event which is declared in component

controller like below

wd_comp_controller-gtfire_ok_clicked_main_evt( )

Resultant Now once the ok_clicked_main event is raised from source view the same event can be handled in the

target view method OK_HANDLE_MAIN You can perform any actionpopulation in this method

1075 View s 0 Comments Tags w eb_dynpro w eb_dynpro_abap w ebdynpro_abap abap_w d

We have published a survey ( link) to check with Web Dynpro ABAP community if they want a more modern and

productive development environment for Web Dynpro ABAP applications development

The results were quite positive and ABAP in Eclipse is going in the direction to provide support for Web Dynpro

ABAP applications development

ABAP in Eclipse 20 is just out as trial Refer to blog to check how to download it SCN Trial ABAP Development

Tools 20

ABAP in Eclipse doesnt come bundled with Theme editorTheme editor is available as standalone delivery which you

can use to edit Web Dynpro Themes

What about having Theme Editor installed within ABAP in Eclipse IDE

One of the main objectives of ABAP in Eclipse was to bring all development scenarios into one IDE Using eclipse as

a base it is enabled automatically

Execute following steps to install Theme Editor in ABAP in Eclipse

1 Open the link Theme Editor download link

2 Download Eclipse PlugIn from the list of available downloads

3 Install ABAP in Eclipse Follow the blog to check exact steps Enabling ABAP in Eclipse

4 Open ABAP in Eclipse

5 Go to Help-gtInstal New Software and choose Add option

6 Choose Archive option and select the zip file downloaded from step 2

7 Follow the wizard ABAP in Eclipse will be restarted

And you have Theme editor installed in ABAP in Eclipse Now you can do your ABAP development and also edit Web

Dynpro ABAP themes using same IDE

Refer to the document (Link) to know more about theme editor

1211 View s 1 Comments Tags abap abap_in_eclipse w eb_dynpro_abap

Edit Web Dynpro ABAP themes in ABAP in Eclipse

Posted by Ashwani Kumar Sharma Jan 31 2013

Steps of calling of different component from select option F4 and using the value which are selected in different

component

1 Create a component ZTEST This component will have our select option Also make component usage of

WDR_SELECT_OPTIONS in the used components In our example we have made GC_SELECT1

2 Go to main view Make a components add the component usage from step 1 ( which is created in component

controller )

3 Create a viewContainer UI element in your MAIN view

4 Add the WND_SELECTION_SCREEN view in the viewContainer UI element Go to MAIN window expand the

window and in the viewContainer UI element right click and embed

5 Code in DOINIT method of view to create select option with a m_value_help_id = lsquoGC_SELECT1 which is created

as a used component

6 Go to WDR_SELECT_OPTIONS component Click on enhancement add the component which you wants to add

which should be called at the click of select option

7 Once added when you click on select option F4 the component added in WDR_SELECT_OPTIONS is

called

8 What ever value are entered can be passed back to the select option from where it is called

Calling of different component from select option F4and using the value which are selected in differentcomponent

Posted by Om Awasthi Jan 25 2013

254 View s 0 Comments Tags w eb_dynpro w ebdynpro w eb_dynpro_abap w ebdynpro_abap abap_w d

Step to read the selected data from the table in webdynpro abap

1 Create a method for the table in the property onselect ( like get_data ) Please find the screen shot below

2 Declare the internal table and work area for the attribute to fetch which is selected

3 Give the reference to the table which you want to have use method get_selected_elements for the node

which is declared above to fetch the data

4 Loop the selected elements and extrat the exact data which is present in the selected instance

Sample code

DATA lt_sel_elem TYPE wdr_context_element_set

FIELD-SYMBOLS ltls_sel_elemgt TYPE REF TO if_wd_context_element

DATA lo_nd_n_result TYPE REF TO if_wd_context_node

DATA ls_n_result TYPE wd_this-gtelement_n_result

DATA lt_n_result TYPE wd_this-gtelements_n_result

navigate from ltCONTEXTgt to ltN_RESULTgt via lead selection

lo_nd_n_result = wd_context-gtget_child_node( name = wd_this-gtwdctx_n_result )

TODO handle non existant child

IF lo_nd_n_result IS INITIAL

ENDIF

CALL METHOD lo_nd_n_result-gtget_selected_elements

RECEIVING

set = lt_sel_elem

fetching selected entries

LOOP AT lt_sel_elem ASSIGNING ltls_sel_elemgt

CALL METHOD ltls_sel_elemgt-gtget_static_attributes

IMPORTING

static_attributes = ls_n_result

APPEND ls_n_result TO lt_n_result

ENDLOOP

1172 View s 0 Comments

Tags abap w eb_dynpro w eb_dynpro_abap w ebdynpro_abap w ebdynproabap w ebdynpro_for_abap

Read selected values from table in webdynpro ABAP

Posted by Om Awasthi Jan 25 2013

Method invocation queue

Posted by Uwe Kunath Jan 24 2013

Popups in Webdynpro for ABAP are annoying

Recently I had the pleasure to show one of these Are you sure popups in the UI The issue with popups in

webdynpro is due to the web based architecture the fact that there is no real synchronous program flow as we were

used to in SAP GUI

Instead of stopping the program flow when a popup is shown the Webdynpro runtime continues in order to fulfill the

HTTP web request

This means instead of receiving the result of the users decision right after the popup call we usually need to

implement callback methods which are called when the user presses either Ok No and so on

In the sample this would be the views method ONACTIONAPPLY_CONFIRM

Did you recognize line 29 - 34 Actually what is done here is the preparation of the backend call which is to be

executed depending on the users decision The method parameters are already stored in some attributes and read

for later purpose

In the callback method the backend invocation might look like the code below

Every parameter that will conditionally passed to the backend will have to be stored somewhere

You do this kind of work one time maybe two times or three times and you are going to be annoyed at it

Couldnt this behaviour be achieved easier and more conventiently

What is a method invocation queue

A method invocation queue records method calls for later execution Instead of storing parameters for later usage

you will store the objects and their method calls including parameters for later usage As ABAP still lacks function

pointers we will need to implement it manually

Compare the above shown coding starting at line 29 with this one

Looks more complicated at the beginning But the big advantage of this concept is that you will now only have to keep

track of the method invocation queue not method parameters No further attributes are required

Actually using the fluent API you could write lines 6 to 8 in just one single line

The popups callback method now looks like this

01 DATA lo_comp_api TYPE REF TO if_wd_component

02 DATA lo_controller_api TYPE REF TO if_wd_controller

03 DATA ls_config TYPE wdr_popup_to_confirm

04 DATA lt_text_table TYPE string_table

05 lv_text_table TYPE string

06 lv_title TYPE string

07 ls_config-button_cancel-enabled = abap_false

08 lo_controller_api = wd_this-gtwd_get_api( )

09 lo_comp_api = wd_comp_controller-gtwd_get_api( )

10 lv_title = Are you sure

11 lv_text_table = Really

12 APPEND lv_text_table TO lt_text_table

13 TRY

14 CALL METHOD cl_wd_popup_factory=gtpopup_to_confirm

15 EXPORTING

16 component = lo_comp_api

17 text = lt_text_table

18 window_title = lv_title

19 configuration = ls_config

20 RECEIVING

21 popup_to_confirm = wd_this-gtmo_popup

22 wd_this-gtmo_popup-gtsubscribe_to_events(

23 controller = lo_controller_api

24 handler_name = ONACTIONAPPLY_CONFIRM )

25 retrieve backend call parameters

26 DATA lv_p1 TYPE i

27 DATA lv_p2 TYPE string

28 retrieve parameters

29 store backend call parameters in the views attributes

30 wd_this-gtmv_p1 = lv_p1

31 wd_this-gtmv_p2 = lv_p2

01 METHOD ONACTIONAPPLY_CONFIRM

02 CHECK wd_this-gtmo_popup-gtanswer = if_wd_popup_to_confirm=gtco_button_1_pressed

03 wd_this-gtmo_some_weird_backend-gtperform_some_weird_operation( iv_p1 = wd_this-gtmv_p1 iv_p2 = wd_this-gtmv_p2 )

04 ENDMETHOD

01 retrieve backend call parameters and record backend calls

02 DATA lv_p1 TYPE i

03 DATA lv_p2 TYPE string

04 retrieve parameters

05 wd_this-gtmo_method_queue = zcl_method_queue=gtnew_method_invocation( )

06 wd_this-gtmo_method_queue-gtwith( wd_this-gtmo_some_weird_backend )-gton( perform_some_weird_operation )

07 wd_this-gtmo_method_queue-gtadd_parameter( iv_name = iv_p1 iv_value = lv_p1 )

08 wd_this-gtmo_method_queue-gtadd_parameter( iv_name = iv_p2 iv_value = lv_p2 )

01 METHOD ONACTIONAPPLY_CONFIRM

02 CHECK wd_this-gtmo_popup-gtanswer = if_wd_popup_to_confirm=gtco_button_1_pressed

03 wd_this-gtmo_method_queue-gtflush( )

04 ENDMETHOD

Interested

So here is the coding Please be aware this is just experimental and not meant for productive usage

This code lacks the support of any other parameter type than IMPORTING parameters as well as proper exception

handling However you may consider to enhance it and write about what you found out -)

01 CLASS zcl_method_queue DEFINITION

02 PUBLIC

03 FINAL

04 CREATE PROTECTED

05 PUBLIC SECTION

06 TYPE-POOLS abap

07 CLASS-METHODS new_method_invocation

08 RETURNING

09 value(ro_method_queue) TYPE REF TO zcl_method_queue

10 METHODS with

11 IMPORTING

12 io_caller TYPE REF TO object

13 RETURNING

14 value(ro_method_queue) TYPE REF TO zcl_method_queue

15 METHODS on

16 IMPORTING

17 iv_method TYPE seocpdname

18 RETURNING

19 value(ro_method_queue) TYPE REF TO zcl_method_queue

20 METHODS add_parameter

21 IMPORTING

22 iv_name TYPE abap_parmname

23 value(iv_value) TYPE any

24 RETURNING

25 value(ro_method_queue) TYPE REF TO zcl_method_queue

26 METHODS finalize

27 METHODS flush

28 RAISING

29 zcx_method_queue

30 PROTECTED SECTION

31 TYPES

32 BEGIN OF ty_s_method_invocation

33 caller TYPE REF TO object

34 method TYPE seocpdname

35 parameters TYPE abap_parmbind_tab

36 END OF ty_s_method_invocation

37 DATA ms_method_invocation TYPE ty_s_method_invocation

38 DATA

39 mt_method_invocations TYPE TABLE OF ty_s_method_invocation

40 METHODS copy_value

41 IMPORTING

42 ir_ref TYPE REF TO data

43 RETURNING

44 value(rr_ref) TYPE REF TO data

45 METHODS constructor

46 PRIVATE SECTION

47 ENDCLASS

48 CLASS ZCL_METHOD_QUEUE IMPLEMENTATION

49 METHOD add_parameter

50 ro_method_queue = me

51 DATA ls_parameter TYPE abap_parmbind

52 DATA lr_value TYPE REF TO data

53 ls_parameter-name = iv_name

54 TRANSLATE ls_parameter-name TO UPPER CASE

55 ls_parameter-kind = cl_abap_objectdescr=gtexporting

56 GET REFERENCE OF iv_value INTO lr_value

57 ls_parameter-value = copy_value( lr_value )

58 INSERT ls_parameter INTO TABLE ms_method_invocation-parameters

59 ENDMETHOD add_parameter

60 METHOD constructor

61 ENDMETHOD CONSTRUCTOR

62 METHOD copy_value

63 FIELD-SYMBOLS ltlv_ingt TYPE any

64 FIELD-SYMBOLS ltlv_outgt TYPE any

65 ASSIGN ir_ref-gt TO ltlv_ingt

66 CREATE DATA rr_ref LIKE ltlv_ingt

67 ASSIGN rr_ref-gt TO ltlv_outgt

68 ltlv_outgt = ltlv_ingt

69 ENDMETHOD

70 METHOD finalize

71 CHECK ms_method_invocation-caller IS NOT INITIAL AND ms_method_invocation-method IS NOT INITIAL

72 APPEND ms_method_invocation TO mt_method_invocations

73 CLEAR ms_method_invocation

74 ENDMETHOD

75 METHOD flush

Drawbacks of this approach

However theres no such thing as a free lunch

If you decide to use such a method invocation queue you lose the where-used-list support of your backends

methods

Also you can only access real backend methods and not component controller methods as they are accesssible for

their views or windows but not for any other objects unless these methods are declared public

So stay careful be watchful and enjoy

557 View s 0 Comments Tags abap w eb_dynpro w ebdynpro popup popup_w indow method_queue

76 FIELD-SYMBOLS ltls_callgt TYPE ty_s_method_invocation

77 DATA lo_cx_root TYPE REF TO cx_root

78 DATA lo_objectdescr TYPE REF TO cl_abap_classdescr

79 DATA lo_cx_sy_dyn_call_illegal_meth TYPE REF TO cx_sy_dyn_call_illegal_method

80 DATA ls_method TYPE abap_methdescr

81 DATA lv_has_method_been_called TYPE abap_bool

82 DATA lv_count TYPE i

83 DATA lt_method_parts TYPE string_table

84 DATA lv_method_name TYPE string

85 finalize( )

86 LOOP AT mt_method_invocations ASSIGNING ltls_callgt

87 TRY

88 CALL METHOD ltls_callgt-caller-gt(ltls_callgt-method) PARAMETER-TABLE ltls_callgt-parameters

89 CATCH cx_sy_dyn_call_illegal_method INTO lo_cx_sy_dyn_call_illegal_meth

90 no such method - try to call named method in any interface that the current object might implement

91 lv_has_method_been_called = abap_false

92 lo_objectdescr = cl_abap_classdescr=gtdescribe_by_object_ref( ltls_callgt-caller )

93 LOOP AT lo_objectdescr-gtmethods INTO ls_method

94 TRY

95 lv_method_name = ls_method-name

96 SPLIT lv_method_name AT ~ INTO TABLE lt_method_parts

97 FIND ltls_callgt-method IN TABLE lt_method_parts MATCH COUNT lv_count

98 IF lv_count gt 0

99 CALL METHOD ltls_callgt-caller-gt(ls_method-name) PARAMETER-TABLE ltls_callgt-parameters

100 lv_has_method_been_called = abap_true

101 EXIT

102 ENDIF

103 CATCH cx_root INTO lo_cx_root

104 CONTINUE

105 ENDTRY

106 ENDLOOP

107 has method been found

108 IF lv_has_method_been_called = abap_false

109 RAISE EXCEPTION TYPE zcx_method_queue

110 EXPORTING

111 previous = lo_cx_root

112 method = ltls_callgt-method

113 ENDIF

114 CATCH cx_root INTO lo_cx_root

115 RAISE EXCEPTION TYPE zcx_method_queue

116 EXPORTING

117 previous = lo_cx_root

118 method = ltls_callgt-method

119 ENDTRY

120 ENDLOOP

121 ENDMETHOD flush

122 METHOD new_method_invocation

123 CREATE OBJECT ro_method_queue

124 ENDMETHOD new_method_invocation

125 METHOD on

126 ro_method_queue = me

127 ms_method_invocation-method = iv_method

128 TRANSLATE ms_method_invocation-method TO UPPER CASE

129 ENDMETHOD on

130 METHOD with

131 ro_method_queue = me

132 IF ms_method_invocation-caller IS NOT INITIAL AND ms_method_invocation-method IS NOT INITIAL

133 finalize( )

134 ENDIF

135 ms_method_invocation-caller = io_caller

136 ENDMETHOD with

137 ENDCLASS

How to display GOS PDF document from Webdynpro

Interested

So here is the coding Please be aware this is just experimental and not meant for productive usage

This code lacks the support of any other parameter type than IMPORTING parameters as well as proper exception

handling However you may consider to enhance it and write about what you found out -)

01 CLASS zcl_method_queue DEFINITION

02 PUBLIC

03 FINAL

04 CREATE PROTECTED

05 PUBLIC SECTION

06 TYPE-POOLS abap

07 CLASS-METHODS new_method_invocation

08 RETURNING

09 value(ro_method_queue) TYPE REF TO zcl_method_queue

10 METHODS with

11 IMPORTING

12 io_caller TYPE REF TO object

13 RETURNING

14 value(ro_method_queue) TYPE REF TO zcl_method_queue

15 METHODS on

16 IMPORTING

17 iv_method TYPE seocpdname

18 RETURNING

19 value(ro_method_queue) TYPE REF TO zcl_method_queue

20 METHODS add_parameter

21 IMPORTING

22 iv_name TYPE abap_parmname

23 value(iv_value) TYPE any

24 RETURNING

25 value(ro_method_queue) TYPE REF TO zcl_method_queue

26 METHODS finalize

27 METHODS flush

28 RAISING

29 zcx_method_queue

30 PROTECTED SECTION

31 TYPES

32 BEGIN OF ty_s_method_invocation

33 caller TYPE REF TO object

34 method TYPE seocpdname

35 parameters TYPE abap_parmbind_tab

36 END OF ty_s_method_invocation

37 DATA ms_method_invocation TYPE ty_s_method_invocation

38 DATA

39 mt_method_invocations TYPE TABLE OF ty_s_method_invocation

40 METHODS copy_value

41 IMPORTING

42 ir_ref TYPE REF TO data

43 RETURNING

44 value(rr_ref) TYPE REF TO data

45 METHODS constructor

46 PRIVATE SECTION

47 ENDCLASS

48 CLASS ZCL_METHOD_QUEUE IMPLEMENTATION

49 METHOD add_parameter

50 ro_method_queue = me

51 DATA ls_parameter TYPE abap_parmbind

52 DATA lr_value TYPE REF TO data

53 ls_parameter-name = iv_name

54 TRANSLATE ls_parameter-name TO UPPER CASE

55 ls_parameter-kind = cl_abap_objectdescr=gtexporting

56 GET REFERENCE OF iv_value INTO lr_value

57 ls_parameter-value = copy_value( lr_value )

58 INSERT ls_parameter INTO TABLE ms_method_invocation-parameters

59 ENDMETHOD add_parameter

60 METHOD constructor

61 ENDMETHOD CONSTRUCTOR

62 METHOD copy_value

63 FIELD-SYMBOLS ltlv_ingt TYPE any

64 FIELD-SYMBOLS ltlv_outgt TYPE any

65 ASSIGN ir_ref-gt TO ltlv_ingt

66 CREATE DATA rr_ref LIKE ltlv_ingt

67 ASSIGN rr_ref-gt TO ltlv_outgt

68 ltlv_outgt = ltlv_ingt

69 ENDMETHOD

70 METHOD finalize

71 CHECK ms_method_invocation-caller IS NOT INITIAL AND ms_method_invocation-method IS NOT INITIAL

72 APPEND ms_method_invocation TO mt_method_invocations

73 CLEAR ms_method_invocation

74 ENDMETHOD

75 METHOD flush

Drawbacks of this approach

However theres no such thing as a free lunch

If you decide to use such a method invocation queue you lose the where-used-list support of your backends

methods

Also you can only access real backend methods and not component controller methods as they are accesssible for

their views or windows but not for any other objects unless these methods are declared public

So stay careful be watchful and enjoy

557 View s 0 Comments Tags abap w eb_dynpro w ebdynpro popup popup_w indow method_queue

76 FIELD-SYMBOLS ltls_callgt TYPE ty_s_method_invocation

77 DATA lo_cx_root TYPE REF TO cx_root

78 DATA lo_objectdescr TYPE REF TO cl_abap_classdescr

79 DATA lo_cx_sy_dyn_call_illegal_meth TYPE REF TO cx_sy_dyn_call_illegal_method

80 DATA ls_method TYPE abap_methdescr

81 DATA lv_has_method_been_called TYPE abap_bool

82 DATA lv_count TYPE i

83 DATA lt_method_parts TYPE string_table

84 DATA lv_method_name TYPE string

85 finalize( )

86 LOOP AT mt_method_invocations ASSIGNING ltls_callgt

87 TRY

88 CALL METHOD ltls_callgt-caller-gt(ltls_callgt-method) PARAMETER-TABLE ltls_callgt-parameters

89 CATCH cx_sy_dyn_call_illegal_method INTO lo_cx_sy_dyn_call_illegal_meth

90 no such method - try to call named method in any interface that the current object might implement

91 lv_has_method_been_called = abap_false

92 lo_objectdescr = cl_abap_classdescr=gtdescribe_by_object_ref( ltls_callgt-caller )

93 LOOP AT lo_objectdescr-gtmethods INTO ls_method

94 TRY

95 lv_method_name = ls_method-name

96 SPLIT lv_method_name AT ~ INTO TABLE lt_method_parts

97 FIND ltls_callgt-method IN TABLE lt_method_parts MATCH COUNT lv_count

98 IF lv_count gt 0

99 CALL METHOD ltls_callgt-caller-gt(ls_method-name) PARAMETER-TABLE ltls_callgt-parameters

100 lv_has_method_been_called = abap_true

101 EXIT

102 ENDIF

103 CATCH cx_root INTO lo_cx_root

104 CONTINUE

105 ENDTRY

106 ENDLOOP

107 has method been found

108 IF lv_has_method_been_called = abap_false

109 RAISE EXCEPTION TYPE zcx_method_queue

110 EXPORTING

111 previous = lo_cx_root

112 method = ltls_callgt-method

113 ENDIF

114 CATCH cx_root INTO lo_cx_root

115 RAISE EXCEPTION TYPE zcx_method_queue

116 EXPORTING

117 previous = lo_cx_root

118 method = ltls_callgt-method

119 ENDTRY

120 ENDLOOP

121 ENDMETHOD flush

122 METHOD new_method_invocation

123 CREATE OBJECT ro_method_queue

124 ENDMETHOD new_method_invocation

125 METHOD on

126 ro_method_queue = me

127 ms_method_invocation-method = iv_method

128 TRANSLATE ms_method_invocation-method TO UPPER CASE

129 ENDMETHOD on

130 METHOD with

131 ro_method_queue = me

132 IF ms_method_invocation-caller IS NOT INITIAL AND ms_method_invocation-method IS NOT INITIAL

133 finalize( )

134 ENDIF

135 ms_method_invocation-caller = io_caller

136 ENDMETHOD with

137 ENDCLASS

How to display GOS PDF document from Webdynpro

Drawbacks of this approach

However theres no such thing as a free lunch

If you decide to use such a method invocation queue you lose the where-used-list support of your backends

methods

Also you can only access real backend methods and not component controller methods as they are accesssible for

their views or windows but not for any other objects unless these methods are declared public

So stay careful be watchful and enjoy

557 View s 0 Comments Tags abap w eb_dynpro w ebdynpro popup popup_w indow method_queue

76 FIELD-SYMBOLS ltls_callgt TYPE ty_s_method_invocation

77 DATA lo_cx_root TYPE REF TO cx_root

78 DATA lo_objectdescr TYPE REF TO cl_abap_classdescr

79 DATA lo_cx_sy_dyn_call_illegal_meth TYPE REF TO cx_sy_dyn_call_illegal_method

80 DATA ls_method TYPE abap_methdescr

81 DATA lv_has_method_been_called TYPE abap_bool

82 DATA lv_count TYPE i

83 DATA lt_method_parts TYPE string_table

84 DATA lv_method_name TYPE string

85 finalize( )

86 LOOP AT mt_method_invocations ASSIGNING ltls_callgt

87 TRY

88 CALL METHOD ltls_callgt-caller-gt(ltls_callgt-method) PARAMETER-TABLE ltls_callgt-parameters

89 CATCH cx_sy_dyn_call_illegal_method INTO lo_cx_sy_dyn_call_illegal_meth

90 no such method - try to call named method in any interface that the current object might implement

91 lv_has_method_been_called = abap_false

92 lo_objectdescr = cl_abap_classdescr=gtdescribe_by_object_ref( ltls_callgt-caller )

93 LOOP AT lo_objectdescr-gtmethods INTO ls_method

94 TRY

95 lv_method_name = ls_method-name

96 SPLIT lv_method_name AT ~ INTO TABLE lt_method_parts

97 FIND ltls_callgt-method IN TABLE lt_method_parts MATCH COUNT lv_count

98 IF lv_count gt 0

99 CALL METHOD ltls_callgt-caller-gt(ls_method-name) PARAMETER-TABLE ltls_callgt-parameters

100 lv_has_method_been_called = abap_true

101 EXIT

102 ENDIF

103 CATCH cx_root INTO lo_cx_root

104 CONTINUE

105 ENDTRY

106 ENDLOOP

107 has method been found

108 IF lv_has_method_been_called = abap_false

109 RAISE EXCEPTION TYPE zcx_method_queue

110 EXPORTING

111 previous = lo_cx_root

112 method = ltls_callgt-method

113 ENDIF

114 CATCH cx_root INTO lo_cx_root

115 RAISE EXCEPTION TYPE zcx_method_queue

116 EXPORTING

117 previous = lo_cx_root

118 method = ltls_callgt-method

119 ENDTRY

120 ENDLOOP

121 ENDMETHOD flush

122 METHOD new_method_invocation

123 CREATE OBJECT ro_method_queue

124 ENDMETHOD new_method_invocation

125 METHOD on

126 ro_method_queue = me

127 ms_method_invocation-method = iv_method

128 TRANSLATE ms_method_invocation-method TO UPPER CASE

129 ENDMETHOD on

130 METHOD with

131 ro_method_queue = me

132 IF ms_method_invocation-caller IS NOT INITIAL AND ms_method_invocation-method IS NOT INITIAL

133 finalize( )

134 ENDIF

135 ms_method_invocation-caller = io_caller

136 ENDMETHOD with

137 ENDCLASS

How to display GOS PDF document from Webdynpro

Dear All

One of the way to display the GOS PDF document via Webdynpro hope this will help

Step1 Select the list of attachments from the business document using function module

BDS_ALL_CONNECTIONS_GET for this you need the following inputs Classname Classtype and objkey

Step2 Convert the file ID (loio_id from the above function module) to xstring using the method

ldquoattachment_get_detailrdquo from the class ldquocl_hap_wd_document_uirdquo

Data

lv_aid type bds_docid

lv_fcon type string

lv_fchex type xstring

lv_mftyp type string

lv_ret type bapiret2

attachment_get_detail

(exporting

attachment_id = lv_aid

attachment_type = pdf

importing

file_content = lv_fcon

file_content_hex = lv_fchex

mime_file_type = lv_mftyp

s_return = lv_ret )

Step3 Display the document in new browser using the method attach_file_to_response from class

cl_wd_runtime_services

data

l_file type string

l_mime type string

pdf_data type xstring

l_mime = applicationpdf

l_file = titlepdf

call method

cl_wd_runtime_services=gtattach_file_to_response

exporting

i_filename = l_file

i_content = lv_fchex

i_mime_type = l_mime

698 View s 0 Comments Tags w eb_dynpro

Posted by Prabhu Rajesh Jan 16 2013

So you want to adaptchange your SAP standard Web Dynpro ABAP (WDA) application but yoursquod like to avoid using

code enhancements if possible One way to achive this is Administrator Personalization and in this blog Ill explain

and give examples of this There are other ways to achieve the same which are not covered by this blog The other

methods to achieve code free changes to WDA applications are called Component Customization and code free

Enhancements which I might cover in a future blog

The list of options is not exhaustive and the recommendations are my personal opinions and not necessarily based

on SAP recommendations

1 Admin Personalization (Application Customization)

If you want to perform small changes like hiding an input field changing a label rearranging a table column or field

then this is the way to go If you come from a Web Dynpro Java background the options at your hand using this

technique are very similar to the old ctrl+right click technique

To get started log on to your development system and simply locate the Web Dynpro application in SE80 or SE84

Now you might want to take a copy of the SAP standard application to perform the customization on so that you keep a

clean SAP version I would recommend taking a copy but up to you and your companies policies If you chose to

customize directly on the standard application your changes will not be lost during an upgrade and you can always go

Admin Personalization of your SAP Standard WDAapplication ndash How To

Posted by Jan Thomas Nygaard Jan 14 2013

back and check which elements where changed and reset the changes (I will show that towards the bottom of this

blog)

You now need to execute the application using shift+F8 or Web dynpro application-gtTest-gt In browser - admin

mode

You can also do the same from your development portal by executing the iview in preview mode (but I have not tested

this out in the portal so cant say if you get prompts for transports etc)

Then locate the UI object you wish to change right click it and chose Settings for current configuration Below Ive

given a couple of examples and hints

If you clicked on a table column you will be able to rearrange it and AddRemove columns

If you click on an input field you can change text make it invisble add a tooltip and even mark it as mandatory

using the state property

NOTE If you mark a field as mandatory it simply gives you a indicator on the field and you need to ensure

that a check for mandatory attributes has or is also implemented for example using

cl_wd_dynamic_tool=gtcheck_mandatory_attr_on_view( view_controller = l_view_controller

display_messages = abap_true )

If you want to rearrange the input fields you have to click on the container element for example Grouping of UI

Elements as shown below You then press the Re-Sort link and you will be able to move them Up and Down

When your done and click the Save and Close button in the bottom right hand corner you will be prompted to save

your changes in a customization transport As a result you only need to do this on your development systemclient -

nice

I have sometimes experienced that this customization seems to be done on the application NOT the application

configuration which means

a) The admin personalization of the application will be available on all the application configurations associated with

it

b) You can perform admin personalization even if the application doesnt have a configuration

However other times it is done on the application configuration as Vikrant Raj also points out in his comments to

this blog I believe there is a bug that gives this inconsistency but the intention from SAP is probably that it should be

saved on the application configuration as I think that makes most sense If anyone can shed any further light on this

(eg refer to a SAP note) please let me know

If you want to check which parts of an application has been customized select the drop down option Personalized

Elements and you will get a list of customized elements and be able to reset them to standard

So this is one way to achieve the described changes As mentioned in the introduction there aare also other ways to

do the same not covered by this blog

NOTE In a lot of SAP standard applications it is also possible to achieve similar things in IMG customizing so ask

your functional IMG expert first

Here are some useful links

End User and Administrator Personalization (SAP Library - Web Dynpro for ABAP)

Personalization and Customizing - Web Dynpro ABAP Configuration Framework - SAP Library

And even though this document is written for FPM it has a brilliant section regarding adaptation options that some of

the way are also applicable for standard WDA applications

httpwwwsdnsapcomirjscngoportalprtrootdocslibraryuuidc0a2b7c2-1598-2e10-45bc-c556df3b9576

QuickLink=indexampoverridelayout=trueamp51591147228485

Best Regards Jan

2528 View s 9 Comments

Tags netw eaver w da abap w eb_dynpro portal sap_portal w ebdynpro customizing netw eaver_portal

w eb_dynpro_abap w ebdynpro_abap enhancement sap_netw eaver adaptation enhancing customization personalization

abap_w d

Create one webdynpro component in se80 like below screen shot

Call the other component from ur component

Posted by John Kalaiyarasan Jan 10 2013

then create one button in your view controller layout-gtfor that button create one custom action

then click on that action write the following code

DATA LO_WINDOW_MANAGER TYPE REF TO IF_WD_WINDOW_MANAGER

DATA LO_API_COMPONENT TYPE REF TO IF_WD_COMPONENT

DATA LO_WINDOW TYPE REF TO IF_WD_WINDOW

data lv_str type string

LO_API_COMPONENT = WD_COMP_CONTROLLER-gtWD_GET_API( )

LO_WINDOW_MANAGER = LO_API_COMPONENT-gtGET_WINDOW_MANAGER( )

CALL METHOD CL_WD_UTILITIES=gtCONSTRUCT_WD_URL

EXPORTING

APPLICATION_NAME = ZWD_TRAINING_FEEDBACK

IMPORTING

OUT_ABSOLUTE_URL = lv_str

In the above screen shot mention your webdynpro component name and defined variable name to hold the

component url

CALL METHOD LO_WINDOW_MANAGER-gtCREATE_EXTERNAL_WINDOW

EXPORTING

URL = lv_str

MODAL = ABAP_true

HAS_MENUBAR = ABAP_TRUE

IS_RESIZABLE = ABAP_TRUE

HAS_SCROLLBARS = ABAP_TRUE

HAS_STATUSBAR = ABAP_TRUE

HAS_TOOLBAR = ABAP_TRUE

HAS_LOCATION = ABAP_TRUE

RECEIVING

WINDOW = LO_WINDOW

LO_WINDOW-gtOPEN( )

In the above screen shot call external popup window and also pass the component url

then right on your webdynpro component-gtwebdynpro application

save active and test your application it will call the other component

1069 View s 2 Comments Tags w eb_dynpro

This blog explains how to navigate from one component view to other component view without adding Used

Components

Scenario Source component contains View with LinkToAction UI element on click of this Link navigates to

Destination component View without adding Used Component in the Source ComponentThis is can be achieved

using Dynamic Navigation by following interface IF_WD_NAVIGATION_SERVICES and method

do_dynamic_navigation

Prerequisites Should have basic knowledge on Web Dynpro ABAP

Create Two Web Dynpro Component by following

Destination Component

Create Web Dynpro with View and Window

Insert Caption UI Element in the View

Navigation from one component view to othercomponet view without adding Used Components

Posted by Sridhar S Jan 7 2013

Embed the View into WindowActivate whole component

Source Component

Create Web Dynpro with View and Window See below there is no Used Component

Insert LinkToAction UI Element in the View and Create Action write the below code assign this action to LinkToAction

UI Element

Code

data lv_view_api type ref to if_wd_view_controller

lv_nav_serv type ref to if_wd_navigation_services

lv_view_api = wd_this-gtwd_get_api( )

lv_nav_serv = lv_view_api

lv_nav_serv-gtdo_dynamic_navigation(

source_window_name = W_COMP2

source_vusage_name = V_COMP2_USAGE_1

source_plug_name = DEFAULT

PLUG_PARAMETERS = PLUG_PARAMETERS

target_component_name = ZTEST_COMP1

target_component_usage = ZTEST_COMP1

target_view_name = W_COMP1

target_plug_name = DEFAULT

TARGET_EMBEDDING_POSITION = TARGET_EMBEDDING_POSITION

)

Embed this View into Window Activate whole component

Create the Webdynpro Application by following

Demo Select the above application Right click and Test When you clicks on below link it navigates to Destination

Components View

1212 View s 0 Comments Tags navigation w eb_dynpro dynamic

Dear All One of the way to display the GOS PDF document via Webdynpro hope this will help Step1 Select the list of

attachments from the business document using function module BDS_ALL_CONNECTIONS_GET for this you need

the following inputs Classname Classtype and objkey Step2 Convert the file ID (loio_id from the above function

module) to xstring using the method ldquoattachment_get_detailrdquo from the class ldquocl_hap_wd_document_uirdquo Data

lv_aid type bds_docid lv_fcon type string lv_fchex type xstring lv_mftyp type string lv_ret type bapiret2

attachment_get_detail( exporting attachment_id = lv_aid attachment_type = pdf importing

file_content = lv_fcon file_content_hex = lv_fchex mime_file_type = lv_mftyp s_return =

lv_ret ) Step3 Display the document in new browser using the method attach_file_to_response from

class cl_wd_runtime_services data l_file type string l_mime type string pdf_data type xstring l_mime =

applicationpdf l_file = titlepdf call method cl_wd_runtime_services=gtattach_file_to_response exporting

i_filename = l_file i_content = lv_fchex i_mime_type = l_mime

479 View s 2 Comments Tags w eb_dynpro

How to display GOS PDF document from Webdynpro

Posted by Prabhu Rajesh Jan 4 2013

In this blog I will give a simple example on how to use a captcha in ABAP Webdynpro

ArchitectureWe generate a simple string in ABAP and send it to a servlet on a J2EE server This servlet generates an image with

SimpleCaptcha httpsimplecaptchasourceforgenet The generated images is received on the ABAP stack and

copied to a cached response so the captchastring is not in the url of the image

The source of the java application can be downloaded here (tested on SAP NW 731 SP5)

Captcha ServletThis is a simple servlet application that generates a captcha image from a given string

1 Download the simplecaptcha library

2 Create an external library DC and name it captchalib

3 Add the simplecaptcha jar-file to the libraries folder

4 Add the jar-files to the public part of the library

5 Create a new web module development component and name it captcha

6 Add a DC dependency between the web module and the library

7 Add a new servlet and give it a name and package

8 Copy the simplecaptchajar to the WEB-INFlib directory

9 Enter the following code

Using captcha in ABAP Webdynpro

Posted by Joachim Van Praet Dec 11 2012

01 package comflexsocaptcha

10 Add a class WordGenerator to be able to decide which word will be used to generate the captcha image

11 Adapt the webxml

12 Create an enterprise application DC with the name captchaear

13 Add the web module to the captchaear project

14 Adapt the applicationxml

02 import javaioIOException

03 import javautilArrayList

04 import javautilList

05 import javaxservletServletException

06 import javaxservlethttpHttpServlet

07 import javaxservlethttpHttpServletRequest

08 import javaxservlethttpHttpServletResponse

09 import comflexsocaptchanoiseCustomNoiseProducer

10 import nlcaptchaCaptcha

11 import nlcaptchaservletCaptchaServletUtil

12 import javaawtColor

13 import javaawtFont

14 public class CaptchaImage extends HttpServlet

15 private static final long serialVersionUID = 1L

16 private static int _width = 180

17 private static int _height = 60

18 private static final ListltColorgt COLORS = new ArrayListltColorgt(2)

19 private static final ListltFontgt FONTS = new ArrayListltFontgt(3)

20 static

21 COLORSadd(ColorBLACK)

22 COLORSadd(ColorBLUE)

23 FONTSadd(new Font(Geneva 2 48))

24 FONTSadd(new Font(Courier 1 48))

25 FONTSadd(new Font(Arial 1 48))

26

27 public CaptchaImage()

28 super()

29

30 protected void doGet(HttpServletRequest request HttpServletResponse response) throws ServletException IOException

31 responsesetContentType(imagepng)

32 responsesetCharacterEncoding(UTF-8)

33 String word = requestgetParameter(captcha)

34 WordGenerator wordRenderer = new WordGenerator(word)

35 Captcha captcha = new CaptchaBuilder(_width _height)addText(wordRenderer)

36 gimp()

37 addNoise())

38 build()

39 CaptchaServletUtilwriteImage(response captchagetImage())

40

41

01 package comflexsocaptcha

02 import nlcaptchatextproducerTextProducer

03 public class WordGenerator implements TextProducer

04

05 private String text =

06 public WordGenerator(String text)

07 thistext = text

08

09 public String getText()

10 return thistext

11

12

01 ltxml version=10 encoding=UTF-8gt

02 ltweb-app xmlnsxsi=httpwwww3org2001XMLSchema-instance xmlns=httpjavasuncomxmlnsjavaee

03 ltdisplay-namegtLocalDevelopment~captcha~flexsocomltdisplay-namegt

04 ltservletgt

05 ltdescriptiongtltdescriptiongt

06 ltdisplay-namegtCaptchaImageltdisplay-namegt

07 ltservlet-namegtCaptchaImageltservlet-namegt

08 ltservlet-classgtcomflexsocaptchaCaptchaImageltservlet-classgt

09 ltservletgt

10 ltservlet-mappinggt

11 ltservlet-namegtCaptchaImageltservlet-namegt

12 lturl-patterngtcaptchapnglturl-patterngt

13 ltservlet-mappinggt

14 ltweb-appgt

01 ltxml version=10 encoding=ASCIIgt

02 ltapplication xmlnsxsi=httpwwww3org2001XMLSchema-instance xmlns=httpjavasuncomxmlnsjavaee

03 ltdisplay-namegtLocalDevelopment~captcha~ear~flexsocomltdisplay-namegt

04 ltmodulegt

05 ltwebgt

06 ltweb-urigtflexsocom~captchawarltweb-urigt

07 ltcontext-rootgtcaptchaltcontext-rootgt

08 ltwebgt

15 Deploy the ear file

16 Test the captcha httpltportalservergtltportgtcaptchacaptchapngcaptcha=test

ABAP Webdynpro application

In the ABAP WD application we build a random string to send to the captcha application

We request the captcha image on the ABAP server and provide it in a cached response to our webdynpro application

to hide the captcha string in the url

1 Create a new web dynpro component

2 In the component controller create a context node CAPTCHA with 3 strings SOURCE ANSWER IMAGE

3 Create method generate_captcha in the component controller In this method we create a random string with

this string we build the url to the J2EE server to generate the captcha image At the end of the method we copy the

image from the java server to a cached response on the ABAP stack and then we fill the context This is the code

4 To copy the image from the JAVA response to the ABAP response I created a separate method

GET_CACHED_URL Importing parameter IV_URL (STRING) and returning parameter OV_URL(STRING)

09 ltmodulegt

10 ltapplicationgt

01 method GENERATE_CAPTCHA

02 CONSTANTS CO_ALFABET type CHAR30 VALUE abcdefghijklmnopqrstuvwxyz

03 DATA lv_captcha type CHAR08

04 lv_i type i

05 lv_char type CHAR01

06 lv_seed type i

07 lo_ran type ref to cl_abap_random_int

08 lv_url type string

09 lv_length type i value 8

10 generate a random string with length lv_length

11 lv_seed = sy-timlo

12 lv_i = STRLEN( co_alfabet ) - 1

13 lo_ran = cl_abap_random_int=gtcreate( min = 0 max = lv_i seed = lv_seed )

14 DO lv_length TIMES

15 lv_i = lo_ran-gtget_next( )

16 lv_char = CO_ALFABET+lv_i(1)

17 lv_i = lo_ran-gtget_next( )

18 if lv_i MOD 2 = 0

19 TRANSLATE lv_char TO UPPER CASE

20 endif

21 CONCATENATE lv_captcha lv_char into lv_captcha

22 ENDDO

23 build url to generate captcha image

24 CONCATENATE captchacaptchapngcaptcha= lv_captcha into lv_url

25 lv_url = wd_this-gtGET_CACHED_URL( lv_url )

26 Set data in context

27 DATA lo_nd_captcha TYPE REF TO if_wd_context_node

28 DATA lo_el_captcha TYPE REF TO if_wd_context_element

29 DATA ls_captcha TYPE wd_this-gtElement_captcha

30 lo_nd_captcha = wd_context-gtget_child_node( name = wd_this-gtwdctx_captcha )

31 lo_el_captcha = lo_nd_captcha-gtget_element( )

32 lo_el_captcha-gtset_attribute( name = `SOURCE` value = lv_captcha )

33 lo_el_captcha-gtset_attribute( name = `IMAGE` value = lv_url )

34 endmethod

01 method GET_CACHED_URL

02 DATA lo_http_client TYPE REF TO if_http_client

03 lo_cached_response TYPE REF TO IF_HTTP_RESPONSE

04 lv_image TYPE xstring

05 lv_guid TYPE GUID_32

06 read the image on the java server

07 CALL METHOD cl_http_client=gtcreate_by_url

08 EXPORTING

09 url = httpltjavaservergtltportgt

15 Deploy the ear file

16 Test the captcha httpltportalservergtltportgtcaptchacaptchapngcaptcha=test

ABAP Webdynpro application

In the ABAP WD application we build a random string to send to the captcha application

We request the captcha image on the ABAP server and provide it in a cached response to our webdynpro application

to hide the captcha string in the url

1 Create a new web dynpro component

2 In the component controller create a context node CAPTCHA with 3 strings SOURCE ANSWER IMAGE

3 Create method generate_captcha in the component controller In this method we create a random string with

this string we build the url to the J2EE server to generate the captcha image At the end of the method we copy the

image from the java server to a cached response on the ABAP stack and then we fill the context This is the code

4 To copy the image from the JAVA response to the ABAP response I created a separate method

GET_CACHED_URL Importing parameter IV_URL (STRING) and returning parameter OV_URL(STRING)

09 ltmodulegt

10 ltapplicationgt

01 method GENERATE_CAPTCHA

02 CONSTANTS CO_ALFABET type CHAR30 VALUE abcdefghijklmnopqrstuvwxyz

03 DATA lv_captcha type CHAR08

04 lv_i type i

05 lv_char type CHAR01

06 lv_seed type i

07 lo_ran type ref to cl_abap_random_int

08 lv_url type string

09 lv_length type i value 8

10 generate a random string with length lv_length

11 lv_seed = sy-timlo

12 lv_i = STRLEN( co_alfabet ) - 1

13 lo_ran = cl_abap_random_int=gtcreate( min = 0 max = lv_i seed = lv_seed )

14 DO lv_length TIMES

15 lv_i = lo_ran-gtget_next( )

16 lv_char = CO_ALFABET+lv_i(1)

17 lv_i = lo_ran-gtget_next( )

18 if lv_i MOD 2 = 0

19 TRANSLATE lv_char TO UPPER CASE

20 endif

21 CONCATENATE lv_captcha lv_char into lv_captcha

22 ENDDO

23 build url to generate captcha image

24 CONCATENATE captchacaptchapngcaptcha= lv_captcha into lv_url

25 lv_url = wd_this-gtGET_CACHED_URL( lv_url )

26 Set data in context

27 DATA lo_nd_captcha TYPE REF TO if_wd_context_node

28 DATA lo_el_captcha TYPE REF TO if_wd_context_element

29 DATA ls_captcha TYPE wd_this-gtElement_captcha

30 lo_nd_captcha = wd_context-gtget_child_node( name = wd_this-gtwdctx_captcha )

31 lo_el_captcha = lo_nd_captcha-gtget_element( )

32 lo_el_captcha-gtset_attribute( name = `SOURCE` value = lv_captcha )

33 lo_el_captcha-gtset_attribute( name = `IMAGE` value = lv_url )

34 endmethod

01 method GET_CACHED_URL

02 DATA lo_http_client TYPE REF TO if_http_client

03 lo_cached_response TYPE REF TO IF_HTTP_RESPONSE

04 lv_image TYPE xstring

05 lv_guid TYPE GUID_32

06 read the image on the java server

07 CALL METHOD cl_http_client=gtcreate_by_url

08 EXPORTING

09 url = httpltjavaservergtltportgt

5 Open the view of the webdynpro

6 In the context tab bind the CAPTCHA node from the componentcontroller

7 In the layout tab add following elements to the view

a An image and bind the source property to attribute IMAGE af the CAPTCHA node

b An input field and bind the property value to attribute ANSWER of the CAPTCHA node

c A button lsquocheck captcharsquo and assign an action CHECK

d A button refresh and assign an action REFRESH

8 Implement the 2 actionhandlers

10 IMPORTING

11 client = lo_http_client

12 EXCEPTIONS

13 OTHERS = 1

14 CALL METHOD lo_http_client-gtrequest-gtset_header_field

15 EXPORTING

16 name = ~request_uri

17 value = iv_url

18 CALL METHOD lo_http_client-gtsend

19 EXCEPTIONS

20 http_communication_failure = 1

21 http_invalid_state = 2

22 http_processing_failed = 3

23 CALL METHOD lo_http_client-gtreceive

24 EXCEPTIONS

25 http_communication_failure = 1

26 http_invalid_state = 2

27 http_processing_failed = 3

28 lv_image = lo_http_client-gtresponse-gtget_data( )

29 send the image to the cached response on the ABAP server

30 CREATE OBJECT lo_cached_response TYPE CL_HTTP_RESPONSE EXPORTING ADD_C_MSG = 1

31 SET IMAGE TO MIME

32 lo_cached_response-gtSET_DATA( lv_image )

33 lo_cached_response-gtSET_HEADER_FIELD( NAME = IF_HTTP_HEADER_FIELDS=gtCONTENT_TYPE VALUE = imagepng )

34 lo_cached_response-gtSET_STATUS( CODE = 200 REASON = OK )

35 lo_cached_response-gtSERVER_CACHE_EXPIRE_REL( EXPIRES_REL = 100 )

36 generate an url

37 CALL FUNCTION GUID_CREATE

38 IMPORTING

39 EV_GUID_32 = lv_guid

40 CL_WD_UTILITIES=gtCONSTRUCT_WD_URL( EXPORTING

41 APPLICATION_NAME = Z_CAPTCHA WEBDYNPRO APPLICATION NAME

42 IMPORTING OUT_LOCAL_URL = OV_URL )

43 CONCATENATE OV_URL lv_guid sy-uzeit png INTO OV_URL

44 CL_HTTP_SERVER=gtSERVER_CACHE_UPLOAD( URL = OV_URL RESPONSE = lo_CACHED_RESPONSE )

45 endmethod

01 method ONACTIONCHECK

02 DATA lo_nd_captcha TYPE REF TO if_wd_context_node

03 DATA lo_el_captcha TYPE REF TO if_wd_context_element

04 DATA ls_captcha TYPE wd_this-gtElement_captcha

05 get message manager

06 data lo_api_controller type ref to if_wd_controller

07 data lo_message_manager type ref to if_wd_message_manager

08 data lv_Str type string

09 lv_text type string

10 lv_type type I

11 read context

12 lo_nd_captcha = wd_context-gtget_child_node( name = wd_this-gtwdctx_captcha )

13 lo_el_captcha = lo_nd_captcha-gtget_element( )

14 lo_el_captcha-gtget_static_attributes( IMPORTING static_attributes = ls_captcha )

15 get message manager

Create a web dynpro application object and test the application

Result

1867 View s 5 Comments Tags w eb_dynpro w eb_dynpro_abap captcha abap_w d

16 lo_api_controller = wd_This-gtWd_Get_Api( )

17 CALL METHOD lo_api_controller-gtGET_MESSAGE_MANAGER

18 RECEIVING

19 MESSAGE_MANAGER = lo_message_manager

20

21 lv_type = IF_WD_MESSAGE_MANAGER=gtCO_TYPE_ERROR

22 lv_text = ERROR

23 TRANSLATE LS_CAPTCHA-SOURCE TO UPPER CASE

24 TRANSLATE LS_CAPTCHA-ANSWER TO UPPER CASE

25 compare captcha answer with the source

26 if LS_CAPTCHA-SOURCE = LS_CAPTCHA-ANSWER

27 lv_type = IF_WD_MESSAGE_MANAGER=gtCO_TYPE_STANDARD

28 lv_text = OK

29 endif

30 report message

31 CALL METHOD lo_message_manager-gtREPORT_MESSAGE

32 EXPORTING

33 MESSAGE_TEXT = lv_text

34 MESSAGE_TYPE = lv_type

35 RECEIVING

36 MESSAGE_ID = lv_str

37

38 endmethod

39 method ONACTIONREFRESH

40 WD_COMP_CONTROLLER-gtGENERATE_CAPTCHA( )

41 endmethod

Go to Tcode SE80

Select MIME Repository

Select faviconico The path is SAP gt PUBLIC gt BC gt UR gt Login gt assests

Change Logo on Address Bar for WD Appl

Posted by Dhivya Baskaran Dec 6 2012

Change the icon by Right Click faviconico and select Upload and Replace from UploadDownload dropdown

Then select the image from local disk

Save the properties

Follow SCNSite Index Contact Us SAP Help Portal

Privacy Terms of Use Legal Disclosure Copyright

Now if you restart the application The URL address bar image will be the image you have uploaded Thus we

successfully changed the Logo in Address bar

1285 View s 7 Comments Tags w eb_dynpro basis w ebdynpro_abap

1 hellip 3 4 5 6 7 8

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