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// Copyright 2015 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
/**
* @fileoverview
* 'settings-change-picture' is the settings subpage containing controls to
* edit a ChromeOS user's picture.
*/
Polymer({
is: 'settings-change-picture',
behaviors: [
settings.RouteObserverBehavior,
I18nBehavior,
WebUIListenerBehavior,
],
properties: {
/**
* True if the user has a plugged-in webcam.
* @private {boolean}
*/
cameraPresent_: {
type: Boolean,
value: false,
},
/**
* The currently selected item. This property is bound to the iron-selector
* and never directly assigned. This may be undefined momentarily as
* the selection changes due to iron-selector implementation details.
* @private {?CrPicture.ImageElement}
*/
selectedItem_: {
type: Object,
value: null,
},
/**
* The active set of default user images.
* @private {!Array<!settings.DefaultImage>}
*/
defaultImages_: {
type: Array,
value: function() {
return [];
},
},
/**
* The index of the first default image to use in the selection list.
* @private
*/
firstDefaultImageIndex_: Number,
},
listeners: {
'discard-image': 'onDiscardImage_',
'image-activate': 'onImageActivate_',
'photo-taken': 'onPhotoTaken_',
'switch-mode': 'onSwitchMode_',
},
/** @private {?settings.ChangePictureBrowserProxy} */
browserProxy_: null,
/** @private {?CrPictureListElement} */
pictureList_: null,
/** @override */
ready: function() {
this.browserProxy_ = settings.ChangePictureBrowserProxyImpl.getInstance();
this.pictureList_ =
/** @type {CrPictureListElement} */ (this.$.pictureList);
},
/** @override */
attached: function() {
this.addWebUIListener(
'default-images-changed', this.receiveDefaultImages_.bind(this));
this.addWebUIListener(
'selected-image-changed', this.receiveSelectedImage_.bind(this));
this.addWebUIListener(
'old-image-changed', this.receiveOldImage_.bind(this));
this.addWebUIListener(
'profile-image-changed', this.receiveProfileImage_.bind(this));
this.addWebUIListener(
'camera-presence-changed', this.receiveCameraPresence_.bind(this));
},
/** @protected */
currentRouteChanged: function(newRoute) {
if (newRoute == settings.routes.CHANGE_PICTURE) {
this.browserProxy_.initialize();
this.browserProxy_.requestSelectedImage();
this.pictureList_.setFocus();
} else {
// Ensure we deactivate the camera when we navigate away.
this.selectedItem_ = null;
}
},
/**
* Handler for the 'default-images-changed' event.
* @param {{first: number, images: !Array<!settings.DefaultImage>}} info
* @private
*/
receiveDefaultImages_: function(info) {
this.defaultImages_ = info.images;
this.firstDefaultImageIndex_ = info.first;
},
/**
* Handler for the 'selected-image-changed' event. Is only called with
* default images.
* @param {string} imageUrl
* @private
*/
receiveSelectedImage_: function(imageUrl) {
this.pictureList_.setSelectedImageUrl(imageUrl);
},
/**
* Handler for the 'old-image-changed' event. The Old image is any selected
* non-profile and non-default image. It can be from the camera, a file, or a
* deprecated default image. When this method is called, the Old image
* becomes the selected image.
* @param {!{url: string, index: number}} imageInfo
* @private
*/
receiveOldImage_: function(imageInfo) {
this.pictureList_.setOldImageUrl(imageInfo.url, imageInfo.index);
},
/**
* Handler for the 'profile-image-changed' event.
* @param {string} imageUrl
* @param {boolean} selected
* @private
*/
receiveProfileImage_: function(imageUrl, selected) {
this.pictureList_.setProfileImageUrl(imageUrl, selected);
},
/**
* Handler for the 'camera-presence-changed' event.
* @param {boolean} cameraPresent
* @private
*/
receiveCameraPresence_: function(cameraPresent) {
this.cameraPresent_ = cameraPresent;
},
/**
* Selects an image element.
* @param {!CrPicture.ImageElement} image
* @private
*/
selectImage_: function(image) {
switch (image.dataset.type) {
case CrPicture.SelectionTypes.CAMERA:
/** CrPicturePaneElement */ (this.$.picturePane).takePhoto();
break;
case CrPicture.SelectionTypes.FILE:
this.browserProxy_.chooseFile();
break;
case CrPicture.SelectionTypes.PROFILE:
this.browserProxy_.selectProfileImage();
break;
case CrPicture.SelectionTypes.OLD:
var imageIndex = image.dataset.imageIndex;
if (imageIndex !== undefined && imageIndex >= 0 && image.src)
this.browserProxy_.selectDefaultImage(image.src);
else
this.browserProxy_.selectOldImage();
break;
case CrPicture.SelectionTypes.DEFAULT:
this.browserProxy_.selectDefaultImage(image.dataset.url);
break;
default:
assertNotReached('Selected unknown image type');
}
},
/**
* Handler for when an image is activated.
* @param {!{detail: !CrPicture.ImageElement}} event
* @private
*/
onImageActivate_: function(event) {
this.selectImage_(event.detail);
},
/**
* @param {!{detail: !{photoDataUrl: string}}} event
* @private
*/
onPhotoTaken_: function(event) {
this.browserProxy_.photoTaken(event.detail.photoDataUrl);
this.pictureList_.setOldImageUrl(event.detail.photoDataUrl);
this.pictureList_.setFocus();
announceAccessibleMessage(
loadTimeData.getString('photoCaptureAccessibleText'));
},
/**
* @param {!{detail: boolean}} event
* @private
*/
onSwitchMode_: function(event) {
var videomode = event.detail;
announceAccessibleMessage(this.i18n(
videomode ? 'videoModeAccessibleText' : 'photoModeAccessibleText'));
},
/** @private */
onDiscardImage_: function() {
this.pictureList_.setOldImageUrl(CrPicture.kDefaultImageUrl);
// Revert to profile image as we don't know what last used default image is.
this.browserProxy_.selectProfileImage();
announceAccessibleMessage(this.i18n('photoDiscardAccessibleText'));
},
/**
* @param {CrPicture.ImageElement} selectedItem
* @return {string}
* @private
*/
getImageSrc_: function(selectedItem) {
return (selectedItem && selectedItem.dataset.url) || '';
},
/**
* @param {CrPicture.ImageElement} selectedItem
* @return {string}
* @private
*/
getImageType_: function(selectedItem) {
return (selectedItem && selectedItem.dataset.type) ||
CrPicture.SelectionTypes.NONE;
},
/**
* @param {!Array<!settings.DefaultImage>} defaultImages
* @param {number} firstDefaultImageIndex
* @return {!Array<!settings.DefaultImage>}
* @private
*/
getDefaultImages_(defaultImages, firstDefaultImageIndex) {
return defaultImages.slice(firstDefaultImageIndex);
},
/**
* @param {CrPicture.ImageElement} selectedItem
* @return {boolean} True if the author credit text is shown.
* @private
*/
isAuthorCreditShown_: function(selectedItem) {
return !!selectedItem &&
(selectedItem.dataset.type == CrPicture.SelectionTypes.DEFAULT ||
(selectedItem.dataset.imageIndex !== undefined &&
selectedItem.dataset.imageIndex >= 0));
},
/**
* @param {!CrPicture.ImageElement} selectedItem
* @param {!Array<!settings.DefaultImage>} defaultImages
* @return {string} The author name for the selected default image. An empty
* string is returned if there is no valid author name.
* @private
*/
getAuthorCredit_: function(selectedItem, defaultImages) {
var index = selectedItem ? selectedItem.dataset.imageIndex : undefined;
if (index === undefined || index < 0 || index >= defaultImages.length)
return '';
var author = defaultImages[index].author;
return author ? this.i18n('authorCreditText', author) : '';
},
/**
* @param {!CrPicture.ImageElement} selectedItem
* @param {!Array<!settings.DefaultImage>} defaultImages
* @return {string} The author name for the selected default image. An empty
* string is returned if there is no valid author name.
* @private
*/
getAuthorWebsite_: function(selectedItem, defaultImages) {
var index = selectedItem ? selectedItem.dataset.imageIndex : undefined;
if (index === undefined || index < 0 || index >= defaultImages.length)
return '';
return defaultImages[index].website || '';
},
});
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