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146 lines (132 loc) · 4.92 KB
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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 represents the block options modal.
*
* @author sll@google.com (Sean Lip)
*/
goog.provide('blocklyApp.BlockOptionsModalComponent');
goog.require('blocklyApp.AudioService');
goog.require('blocklyApp.BlockOptionsModalService');
goog.require('blocklyApp.KeyboardInputService');
goog.require('blocklyApp.TranslatePipe');
goog.require('Blockly.CommonModal');
blocklyApp.BlockOptionsModalComponent = ng.core.Component({
selector: 'blockly-block-options-modal',
template: `
<div *ngIf="modalIsVisible" class="blocklyModalCurtain"
(click)="dismissModal()">
<!-- $event.stopPropagation() prevents the modal from closing when its
interior is clicked. -->
<div id="blockOptionsModal" class="blocklyModal" role="alertdialog"
(click)="$event.stopPropagation()" tabindex="-1"
aria-labelledby="blockOptionsModalHeading">
<h3 id="blockOptionsModalHeading">{{'BLOCK_OPTIONS'|translate}}</h3>
<div role="document">
<div class="blocklyModalButtonContainer"
*ngFor="#buttonInfo of actionButtonsInfo; #buttonIndex=index">
<button [id]="getOptionId(buttonIndex)"
(click)="buttonInfo.action(); hideModal();"
[ngClass]="{activeButton: activeButtonIndex == buttonIndex}">
{{buttonInfo.translationIdForText|translate}}
</button>
</div>
</div>
<div class="blocklyModalButtonContainer">
<button [id]="getCancelOptionId()"
(click)="dismissModal()"
[ngClass]="{activeButton: activeButtonIndex == actionButtonsInfo.length}">
{{'CANCEL'|translate}}
</button>
</div>
</div>
</div>
`,
pipes: [blocklyApp.TranslatePipe]
})
.Class({
constructor: [
blocklyApp.BlockOptionsModalService, blocklyApp.KeyboardInputService,
blocklyApp.AudioService,
function(blockOptionsModalService_, keyboardInputService_, audioService_) {
this.blockOptionsModalService = blockOptionsModalService_;
this.keyboardInputService = keyboardInputService_;
this.audioService = audioService_;
this.modalIsVisible = false;
this.actionButtonsInfo = [];
this.activeButtonIndex = -1;
this.onDismissCallback = null;
var that = this;
this.blockOptionsModalService.registerPreShowHook(
function(newActionButtonsInfo, onDismissCallback) {
that.modalIsVisible = true;
that.actionButtonsInfo = newActionButtonsInfo;
that.activeActionButtonIndex = -1;
that.onDismissCallback = onDismissCallback;
Blockly.CommonModal.setupKeyboardOverrides(that);
that.keyboardInputService.addOverride('13', function(evt) {
evt.preventDefault();
evt.stopPropagation();
if (that.activeButtonIndex == -1) {
return;
}
var button = document.getElementById(
that.getOptionId(that.activeButtonIndex));
if (that.activeButtonIndex <
that.actionButtonsInfo.length) {
that.actionButtonsInfo[that.activeButtonIndex].action();
} else {
that.dismissModal();
}
that.hideModal();
});
setTimeout(function() {
document.getElementById('blockOptionsModal').focus();
}, 150);
}
);
}
],
focusOnOption: function(index) {
var button = document.getElementById(this.getOptionId(index));
button.focus();
},
// Counts the number of interactive elements for the modal.
numInteractiveElements: function() {
return this.actionButtonsInfo.length + 1;
},
// Returns the ID for the corresponding option button.
getOptionId: function(index) {
return 'block-options-modal-option-' + index;
},
// Returns the ID for the "cancel" option button.
getCancelOptionId: function() {
return this.getOptionId(this.actionButtonsInfo.length);
},
dismissModal: function() {
this.onDismissCallback();
this.hideModal();
},
// Closes the modal.
hideModal: function() {
this.modalIsVisible = false;
this.keyboardInputService.clearOverride();
this.blockOptionsModalService.hideModal();
}
});