mirror of
https://github.com/google/blockly.git
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91 lines
3.2 KiB
JavaScript
91 lines
3.2 KiB
JavaScript
/**
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* AccessibleBlockly
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*
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* Copyright 2016 Google Inc.
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* https://developers.google.com/blockly/
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*
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* Licensed under the Apache License, Version 2.0 (the 'License');
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an 'AS IS' BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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/**
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* @fileoverview Angular2 Component that details how a Blockly.Workspace is
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* rendered in AccessibleBlockly.
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*
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* @author madeeha@google.com (Madeeha Ghori)
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*/
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blocklyApp.WorkspaceComponent = ng.core.Component({
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selector: 'blockly-workspace',
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template: `
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<div class="blocklyWorkspaceColumn">
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<h3 #workspaceTitle id="blockly-workspace-title">{{'WORKSPACE'|translate}}</h3>
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<div *ngIf="workspace" class="blocklyWorkspace">
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<ol #tree *ngFor="#block of workspace.topBlocks_; #i = index"
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tabindex="0" role="tree" class="blocklyTree blocklyWorkspaceFocusTarget"
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[attr.aria-activedescendant]="getActiveDescId(tree.id)"
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[attr.aria-labelledby]="workspaceTitle.id"
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(keydown)="onKeypress($event, tree)"
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(focus)="speakLocation(i)">
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<blockly-workspace-block [level]="0" [block]="block" [tree]="tree" [isTopLevel]="true">
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</blockly-workspace-block>
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</ol>
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<span *ngIf="workspace.topBlocks_.length === 0">
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<p id="emptyWorkspaceBtnLabel">
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There are no blocks in the workspace.
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<button (click)="showToolboxModalForCreateNewGroup()"
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class="blocklyWorkspaceFocusTarget"
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id="{{ID_FOR_EMPTY_WORKSPACE_BTN}}"
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aria-describedby="emptyWorkspaceBtnLabel">
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Create new block group...
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</button>
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</p>
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</span>
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</div>
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</div>
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`,
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directives: [blocklyApp.WorkspaceBlockComponent],
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pipes: [blocklyApp.TranslatePipe]
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})
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.Class({
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constructor: [
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blocklyApp.NotificationsService,
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blocklyApp.ToolboxModalService,
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blocklyApp.TreeService,
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function(notificationsService, toolboxModalService, treeService) {
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this.notificationsService = notificationsService;
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this.toolboxModalService = toolboxModalService;
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this.treeService = treeService;
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this.workspace = blocklyApp.workspace;
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this.ID_FOR_EMPTY_WORKSPACE_BTN = blocklyApp.ID_FOR_EMPTY_WORKSPACE_BTN;
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}
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],
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getActiveDescId: function(treeId) {
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return this.treeService.getActiveDescId(treeId);
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},
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onKeypress: function(e, tree) {
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this.treeService.onKeypress(e, tree);
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},
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showToolboxModalForCreateNewGroup: function() {
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this.toolboxModalService.showToolboxModalForCreateNewGroup(
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this.ID_FOR_EMPTY_WORKSPACE_BTN);
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},
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speakLocation: function(index) {
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this.notificationsService.speak(
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'Now in workspace group ' + (index + 1) + ' of ' +
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this.workspace.topBlocks_.length);
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}
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});
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