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/**
* AccessibleBlockly
*
* Copyright 2016 Google Inc.
* https://developers.google.com/blockly/
*
* Licensed under the Apache License, Version 2.0 (the 'License');
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an 'AS IS' BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/**
* @fileoverview Angular2 Component that details how blocks are
* rendered in the toolbox in AccessibleBlockly. Also handles any interactions
* with the blocks.
* @author madeeha@google.com (Madeeha Ghori)
*/
blocklyApp.ToolboxTreeComponent = ng.core
.Component({
selector: 'blockly-toolbox-tree',
template: `
<li #parentList [id]="idMap['parentList']" role="treeitem"
[ngClass]="{blocklyHasChildren: displayBlockMenu, blocklyActiveDescendant: index == 0 && noCategories}"
[attr.aria-labelledBy]="generateAriaLabelledByAttr(idMap['blockSummaryLabel'], 'blockly-toolbox-block')"
[attr.aria-level]="level">
<label #blockSummaryLabel [id]="idMap['blockSummaryLabel']">{{getBlockDescription()}}</label>
<ol role="group" *ngIf="displayBlockMenu">
<li [id]="idMap['workspaceCopy']" role="treeitem"
[attr.aria-labelledBy]="generateAriaLabelledByAttr(idMap['workspaceCopyButton'], 'blockly-button')"
[attr.aria-level]="level + 2">
<button [id]="idMap['workspaceCopyButton']" (click)="copyToWorkspace()" tabindex="-1">
{{'COPY_TO_WORKSPACE'|translate}}
</button>
</li>
<li [id]="idMap['blockCopy']" role="treeitem"
[attr.aria-labelledBy]="generateAriaLabelledByAttr(idMap['blockCopyButton'], 'blockly-button')"
[attr.aria-level]="level + 2">
<button [id]="idMap['blockCopyButton']" (click)="copyToClipboard()" tabindex="-1">
{{'COPY_TO_CLIPBOARD'|translate}}
</button>
</li>
<li [id]="idMap['sendToSelected']" role="treeitem"
[attr.aria-labelledBy]="generateAriaLabelledByAttr(idMap['sendToSelectedButton'], 'blockly-button', !canBeCopiedToMarkedConnection())"
[attr.aria-level]="level + 2">
<button [id]="idMap['sendToSelectedButton']" (click)="copyToMarkedSpot()"
[disabled]="!canBeCopiedToMarkedConnection()" tabindex="-1">
{{'COPY_TO_MARKED_SPOT'|translate}}
</button>
</li>
</ol>
</li>
<blockly-toolbox-tree *ngIf= "block.nextConnection && block.nextConnection.targetBlock()"
[level]="level"
[block]="block.nextConnection.targetBlock()"
[displayBlockMenu]="false">
</blockly-toolbox-tree>
`,
directives: [blocklyApp.FieldComponent, ng.core.forwardRef(function() {
return blocklyApp.ToolboxTreeComponent;
})],
inputs: [
'block', 'displayBlockMenu', 'level', 'index', 'tree', 'noCategories', 'isTopLevel'],
pipes: [blocklyApp.TranslatePipe]
})
.Class({
constructor: [
blocklyApp.ClipboardService, blocklyApp.NotificationsService,
blocklyApp.TreeService, blocklyApp.UtilsService,
function(
_clipboardService, _notificationsService,
_treeService, _utilsService) {
this.clipboardService = _clipboardService;
this.notificationsService = _notificationsService;
this.treeService = _treeService;
this.utilsService = _utilsService;
}],
ngOnInit: function() {
var elementsNeedingIds = ['blockSummaryLabel'];
if (this.displayBlockMenu) {
elementsNeedingIds = elementsNeedingIds.concat(['blockSummarylabel',
'workspaceCopy', 'workspaceCopyButton', 'blockCopy',
'blockCopyButton', 'sendToSelected', 'sendToSelectedButton']);
}
this.idMap = this.utilsService.generateIds(elementsNeedingIds);
if (this.isTopLevel) {
this.idMap['parentList'] = 'blockly-toolbox-tree-node0';
} else {
this.idMap['parentList'] = this.utilsService.generateUniqueId();
}
},
getBlockDescription: function() {
return this.utilsService.getBlockDescription(this.block);
},
generateAriaLabelledByAttr: function(mainLabel, secondLabel, isDisabled) {
return this.utilsService.generateAriaLabelledByAttr(
mainLabel, secondLabel, isDisabled);
},
canBeCopiedToMarkedConnection: function() {
return this.clipboardService.canBeCopiedToMarkedConnection(this.block);
},
copyToWorkspace: function() {
var blockDescription = this.getBlockDescription();
var xml = Blockly.Xml.blockToDom(this.block);
var newBlockId = Blockly.Xml.domToBlock(blocklyApp.workspace, xml).id;
var that = this;
setTimeout(function() {
that.treeService.focusOnBlock(newBlockId);
that.notificationsService.setStatusMessage(
blockDescription + ' copied to workspace. ' +
'Now on copied block in workspace.');
});
},
copyToClipboard: function() {
this.clipboardService.copy(this.block);
this.notificationsService.setStatusMessage(
this.getBlockDescription() + ' ' + Blockly.Msg.COPIED_BLOCK_MSG);
},
copyToMarkedSpot: function() {
var blockDescription = this.getBlockDescription();
// Clean up the active desc for the destination tree.
var oldDestinationTreeId = this.treeService.getTreeIdForBlock(
this.clipboardService.getMarkedConnectionBlock().id);
this.treeService.clearActiveDesc(oldDestinationTreeId);
var newBlockId = this.clipboardService.pasteToMarkedConnection(
this.block);
// Invoke a digest cycle, so that the DOM settles.
var that = this;
setTimeout(function() {
that.treeService.focusOnBlock(newBlockId);
var newDestinationTreeId = that.treeService.getTreeIdForBlock(
newBlockId);
if (newDestinationTreeId != oldDestinationTreeId) {
// It is possible for the tree ID for the pasted block to change
// after the paste operation, e.g. when inserting a block between two
// existing blocks that are joined together. In this case, we need to
// also reset the active desc for the old destination tree.
that.treeService.initActiveDesc(oldDestinationTreeId);
}
that.notificationsService.setStatusMessage(
blockDescription + ' copied to marked spot. ' +
'Now on copied block in workspace.');
});
}
});
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