Tree - Multi Expand & Collapse
This example shows how to expand/collapse multiple nodes and demonstrates the sticky header toolbar and info toolbar options.
Z2UI5_CL_SMPC_APP_601
Controls
sap.m
UI5 1.71
The facts
- Repository
- abap2UI5/samples-controls
- Class
Z2UI5_CL_SMPC_APP_601- Source file
z2ui5_cl_smpc_app_601.clas.abap↗- Library
- sap.m
- UI5 entity
sap.m.Tree- Demo kit sample
sap.m.sample.TreeExpandMulti- SAP's own sample
- running at sdk.openui5.org ↗
- Minimum UI5
- 1.71 — the floor abap2UI5 holds its samples to
- In the playground
- runs in the browser, with no system and nothing installed
Keywords: tree, sap.m, treeexpandmulti, overflowtoolbar, title, toolbarspacer, button, multicombobox, item, togglebutton, standardtreeitem
Controls it builds
- sap.m.Button
- sap.m.MultiComboBox
- sap.m.OverflowToolbar
- sap.m.StandardTreeItem
- sap.m.Title
- sap.m.ToggleButton
- sap.m.ToolbarSpacer
- sap.m.Tree
- sap.ui.core.Item
- sap.ui.core.mvc.View
Read out of the builder chain by the abap2UI5 linter, not from the category this sample is filed under — which is what makes “which samples build one of these” a question the catalogue can answer at all.
Libraries
Run it here
The sample running, in this page — the app on its own, with no editor over it.
Switch to Playground with this code
Nothing is installed and nothing is sent anywhere: the ABAP is compiled to JavaScript in this browser and runs against abap2UI5 itself.
The ABAP
z2ui5_cl_smpc_app_601.clas.abap — 276 lines
Click a number to link to a line — shift-click for a range.
Read it on GitHub ↗
" @keywords tree sap.m treeexpandmulti overflowtoolbar title toolbarspacer button multicombobox item togglebutton standardtreeitem
" @summary This example shows how to expand/collapse multiple nodes and demonstrates the sticky header toolbar and info toolbar options.
CLASS z2ui5_cl_smpc_app_601 DEFINITION PUBLIC.
PUBLIC SECTION.
INTERFACES z2ui5_if_app.
TYPES:
BEGIN OF ty_s_node_level5,
text TYPE string,
ref TYPE string,
END OF ty_s_node_level5,
BEGIN OF ty_s_node_level4,
text TYPE string,
ref TYPE string,
nodes TYPE STANDARD TABLE OF ty_s_node_level5 WITH EMPTY KEY,
END OF ty_s_node_level4,
BEGIN OF ty_s_node_level3,
text TYPE string,
ref TYPE string,
nodes TYPE STANDARD TABLE OF ty_s_node_level4 WITH EMPTY KEY,
END OF ty_s_node_level3,
BEGIN OF ty_s_node_level2,
text TYPE string,
ref TYPE string,
nodes TYPE STANDARD TABLE OF ty_s_node_level3 WITH EMPTY KEY,
END OF ty_s_node_level2,
BEGIN OF ty_s_node_level1,
text TYPE string,
ref TYPE string,
nodes TYPE STANDARD TABLE OF ty_s_node_level2 WITH EMPTY KEY,
END OF ty_s_node_level1.
TYPES ty_t_string TYPE STANDARD TABLE OF string WITH EMPTY KEY.
DATA t_nodes TYPE STANDARD TABLE OF ty_s_node_level1 WITH EMPTY KEY.
" the MultiComboBox selection and the Tree's sticky property share one table
DATA t_sticky TYPE ty_t_string.
" the ToggleButton's pressed state; the info toolbar hides while it is set
DATA hide_info TYPE abap_bool.
PROTECTED SECTION.
DATA client TYPE REF TO z2ui5_if_client.
METHODS view_display.
METHODS model_init.
PRIVATE SECTION.
ENDCLASS.
CLASS z2ui5_cl_smpc_app_601 IMPLEMENTATION.
METHOD z2ui5_if_app~main.
me->client = client.
IF client->check_on_init( ).
model_init( ).
view_display( ).
ELSEIF client->check_on_navigated( ).
view_display( ).
ENDIF.
ENDMETHOD.
METHOD view_display.
DATA(view) = z2ui5_cl_ui5_view_builder=>factory( ).
view->ele( n = `View` ns = `mvc`
)->a( n = `xmlns` v = `sap.m`
)->a( n = `xmlns:core` v = `sap.ui.core`
)->a( n = `xmlns:mvc` v = `sap.ui.core.mvc`
)->ele( `Tree`
)->a( n = `id` v = `Tree`
" items path '/' - bind the root table; the nested `nodes` drive the depth
)->a( n = `items` v = client->_bind( t_nodes )
)->a( n = `mode` v = `MultiSelect`
" onSelectionFinish maps the picked keys onto tree.setSticky( ) - the
" MultiComboBox selection and the sticky property share one bound table
)->a( n = `sticky` v = client->_bind( t_sticky )
)->ele( `headerToolbar`
)->ele( `OverflowToolbar`
)->ele( `content`
)->tag( `Title`
)->a( n = `text` v = `Tree Nodes`
)->tag( `ToolbarSpacer`
" expandSelected / collapseSelected read the tree's own
" selection frontend-side. sap.m.Tree exposes only
" getSelectedItems( ) + indexOfItem( ), so mapping it to
" the INDICES expand( )/collapse( ) take is a loop - and
" a loop in an event argument needs a JS callback, which
" UI5's ExpressionParser cannot parse at all (no
" `function` keyword, `{` is the object-literal nud), so
" it takes the whole handler down rather than just that
" argument. app 248 works because sap.ui.table.TreeTable
" has getSelectedIndices( ) and needs no loop.
)->tag( `Button`
)->a( n = `id` v = `expandMulti`
)->a( n = `text` v = `expand selected nodes`
)->a( n = `press` v = client->follow_up_action( val = client->cs_event-control_by_id
t_arg = VALUE #( ( `Tree` )
( `expandSelected` ) ) )
)->tag( `Button`
)->a( n = `id` v = `collapseMulti`
)->a( n = `text` v = `collapse selected nodes`
)->a( n = `press` v = client->follow_up_action( val = client->cs_event-control_by_id
t_arg = VALUE #( ( `Tree` )
( `collapseSelected` ) ) )
)->ele( `MultiComboBox`
)->a( n = `id` v = `idSticky`
)->a( n = `placeholder` v = `Sticky options`
)->a( n = `selectedKeys` v = client->_bind( t_sticky )
)->a( n = `width` v = `15%`
)->ele( `items`
)->tag( n = `Item` ns = `core`
)->a( n = `text` v = `Header Toolbar`
)->a( n = `key` v = `HeaderToolbar`
)->tag( n = `Item` ns = `core`
)->a( n = `text` v = `Info Toolbar`
)->a( n = `key` v = `InfoToolbar`
)->end(
)->end(
" onToggleInfoToolbar sets the info toolbar's visible to the
" NEGATION of the button's pressed state; both are bindable,
" so the two share one flag and no round trip is needed
)->tag( `ToggleButton`
)->a( n = `id` v = `toggleInfoToolbar`
)->a( n = `text` v = `Hide/Show InfoToolbar`
)->a( n = `pressed` v = client->_bind( hide_info )
)->end(
)->end(
)->end(
)->ele( `infoToolbar`
)->ele( `OverflowToolbar`
)->a( n = `visible` v = |\{= !${ client->_bind( hide_info ) } \}|
)->ele( `content`
)->tag( `Title`
)->a( n = `text` v = `Tree's info toolbar`
)->end(
)->end(
)->end(
)->tag( `StandardTreeItem`
)->a( n = `title` v = `{TEXT}` ).
" onInit does tree.expandToLevel( 1 ) - roundtrip-free frontend action
" (expandToLevel is whitelisted, app 248/365 idiom)
client->follow_up_action( val = client->cs_event-control_by_id
t_arg = VALUE #( ( `Tree` ) ( `expandToLevel` ) ( `1` ) ) ).
client->view_display( view->stringify( ) ).
ENDMETHOD.
METHOD model_init.
t_nodes = VALUE #(
( text = `Node1`
ref = `sap-icon://attachment-audio`
nodes = VALUE #(
( text = `Node1-1`
ref = `sap-icon://attachment-e-pub`
nodes = VALUE #(
( text = `Node1-1-1`
ref = `sap-icon://attachment-html` )
( text = `Node1-1-2`
ref = `sap-icon://attachment-photo`
nodes = VALUE #(
( text = `Node1-1-2-1`
ref = `sap-icon://attachment-text-file`
nodes = VALUE #(
( text = `Node1-1-2-1-1`
ref = `sap-icon://attachment-video` )
( text = `Node1-1-2-1-2`
ref = `sap-icon://attachment-zip-file` )
( text = `Node1-1-2-1-3`
ref = `sap-icon://course-program` ) ) ) ) ) ) )
( text = `Node1-2`
ref = `sap-icon://create`
nodes = VALUE #(
( text = `Node1-2-1`
ref = `sap-icon://attachment-html` )
( text = `Node1-2-2`
ref = `sap-icon://attachment-photo`
nodes = VALUE #(
( text = `Node1-2-2-1`
ref = `sap-icon://attachment-text-file`
nodes = VALUE #(
( text = `Node1-2-2-1-1`
ref = `sap-icon://attachment-video` )
( text = `Node1-2-2-1-2`
ref = `sap-icon://attachment-zip-file` )
( text = `Node1-2-2-1-3`
ref = `sap-icon://course-program` ) ) ) ) ) ) )
( text = `Node1-3`
ref = `sap-icon://create`
nodes = VALUE #(
( text = `Node1-3-1`
ref = `sap-icon://attachment-html` )
( text = `Node1-3-2`
ref = `sap-icon://attachment-photo`
nodes = VALUE #(
( text = `Node1-3-2-1`
ref = `sap-icon://attachment-text-file`
nodes = VALUE #(
( text = `Node1-3-2-1-1`
ref = `sap-icon://attachment-video` )
( text = `Node1-3-2-1-2`
ref = `sap-icon://attachment-zip-file` )
( text = `Node1-3-2-1-3`
ref = `sap-icon://course-program` ) ) ) ) ) ) )
( text = `Node1-4`
ref = `sap-icon://attachment-e-pub`
nodes = VALUE #(
( text = `Node1-1-1`
ref = `sap-icon://attachment-html` )
( text = `Node1-1-2`
ref = `sap-icon://attachment-photo`
nodes = VALUE #(
( text = `Node1-1-2-1`
ref = `sap-icon://attachment-text-file`
nodes = VALUE #(
( text = `Node1-1-2-1-1`
ref = `sap-icon://attachment-video` )
( text = `Node1-1-2-1-2`
ref = `sap-icon://attachment-zip-file` )
( text = `Node1-1-2-1-3`
ref = `sap-icon://course-program` ) ) ) ) ) ) )
( text = `Node1-5`
ref = `sap-icon://attachment-e-pub`
nodes = VALUE #(
( text = `Node1-1-1`
ref = `sap-icon://attachment-html` )
( text = `Node1-1-2`
ref = `sap-icon://attachment-photo`
nodes = VALUE #(
( text = `Node1-1-2-1`
ref = `sap-icon://attachment-text-file`
nodes = VALUE #(
( text = `Node1-1-2-1-1`
ref = `sap-icon://attachment-video` )
( text = `Node1-1-2-1-2`
ref = `sap-icon://attachment-zip-file` )
( text = `Node1-1-2-1-3`
ref = `sap-icon://course-program` ) ) ) ) ) ) )
( text = `Node1-6`
ref = `sap-icon://attachment-e-pub`
nodes = VALUE #(
( text = `Node1-1-1`
ref = `sap-icon://attachment-html` )
( text = `Node1-1-2`
ref = `sap-icon://attachment-photo`
nodes = VALUE #(
( text = `Node1-1-2-1`
ref = `sap-icon://attachment-text-file`
nodes = VALUE #(
( text = `Node1-1-2-1-1`
ref = `sap-icon://attachment-video` )
( text = `Node1-1-2-1-2`
ref = `sap-icon://attachment-zip-file` )
( text = `Node1-1-2-1-3`
ref = `sap-icon://course-program` ) ) ) ) ) ) ) ) )
( text = `Node2`
ref = `sap-icon://customer-financial-fact-sheet` ) ).
ENDMETHOD.
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