/*global define*/
define([
'../../Core/defaultValue',
'../../Core/defined',
'../../Core/defineProperties',
'../../Core/Event',
'../../Core/formatError',
'../../Core/TaskProcessor',
'../../ThirdParty/knockout',
'../../ThirdParty/when'
], function(
defaultValue,
defined,
defineProperties,
Event,
formatError,
TaskProcessor,
knockout,
when) {
"use strict";
var cameraEnabledPath = 'M 13.84375 7.03125 C 11.412798 7.03125 9.46875 8.975298 9.46875 11.40625 L 9.46875 11.59375 L 2.53125 7.21875 L 2.53125 24.0625 L 9.46875 19.6875 C 9.4853444 22.104033 11.423165 24.0625 13.84375 24.0625 L 25.875 24.0625 C 28.305952 24.0625 30.28125 22.087202 30.28125 19.65625 L 30.28125 11.40625 C 30.28125 8.975298 28.305952 7.03125 25.875 7.03125 L 13.84375 7.03125 z';
var cameraDisabledPath = 'M 27.34375 1.65625 L 5.28125 27.9375 L 8.09375 30.3125 L 30.15625 4.03125 L 27.34375 1.65625 z M 13.84375 7.03125 C 11.412798 7.03125 9.46875 8.975298 9.46875 11.40625 L 9.46875 11.59375 L 2.53125 7.21875 L 2.53125 24.0625 L 9.46875 19.6875 C 9.4724893 20.232036 9.5676108 20.7379 9.75 21.21875 L 21.65625 7.03125 L 13.84375 7.03125 z M 28.21875 7.71875 L 14.53125 24.0625 L 25.875 24.0625 C 28.305952 24.0625 30.28125 22.087202 30.28125 19.65625 L 30.28125 11.40625 C 30.28125 9.8371439 29.456025 8.4902779 28.21875 7.71875 z';
/**
* The view model for {@link InfoBox}.
* @alias InfoBoxViewModel
* @constructor
*/
var InfoBoxViewModel = function() {
this._sanitizer = undefined;
this._descriptionRawHtml = '';
this._descriptionSanitizedHtml = '';
this._cameraClicked = new Event();
this._closeClicked = new Event();
/**
* Gets or sets the maximum height of the info box in pixels. This property is observable.
* @type {Number}
*/
this.maxHeight = 500;
/**
* Gets or sets whether the camera tracking icon is enabled.
* @type {Boolean}
*/
this.enableCamera = false;
/**
* Gets or sets the status of current camera tracking of the selected object.
* @type {Boolean}
*/
this.isCameraTracking = false;
/**
* Gets or sets the visibility of the info box.
* @type {Boolean}
*/
this.showInfo = false;
/**
* Gets or sets the title text in the info box.
* @type {String}
*/
this.titleText = '';
/**
* Gets or sets the HTML for the loading indicator during sanitization of the raw description.
* @type {String}
*/
this.loadingIndicatorHtml = '<div class="cesium-infoBox-loadingContainer"><span class="cesium-infoBox-loading"></span></div>';
knockout.track(this, ['showInfo', 'titleText', '_descriptionRawHtml', '_descriptionSanitizedHtml', 'maxHeight', 'enableCamera', 'isCameraTracking']);
/**
* Gets or sets the un-sanitized description HTML for the info box.
* @type {String}
*/
this.descriptionRawHtml = undefined;
knockout.defineProperty(this, 'descriptionRawHtml', {
get : function() {
return this._descriptionRawHtml;
},
set : function(value) {
if (this._descriptionRawHtml !== value) {
this._descriptionRawHtml = value;
this._descriptionSanitizedHtml = this.loadingIndicatorHtml;
var that = this;
when(this.sanitizer(value), function(sanitized) {
// make sure the raw HTML still matches the input we sanitized,
// in case it was changed again while we were sanitizing.
if (that._descriptionRawHtml === value) {
that._descriptionSanitizedHtml = sanitized;
}
}).otherwise(function(error) {
/*global console*/
console.log('An error occurred while sanitizing HTML: ' + formatError(error));
});
}
}
});
/**
* Gets the sanitized description HTML for the info box.
* @type {String}
*/
this.descriptionSanitizedHtml = undefined;
knockout.defineProperty(this, 'descriptionSanitizedHtml', {
get : function() {
return this._descriptionSanitizedHtml;
}
});
/**
* Gets the SVG path of the camera icon, which can change to be "crossed out" or not.
* @type {String}
*/
this.cameraIconPath = undefined;
knockout.defineProperty(this, 'cameraIconPath', {
get : function() {
return (this.enableCamera || this.isCameraTracking) ? cameraEnabledPath : cameraDisabledPath;
}
});
knockout.defineProperty(this, '_bodyless', {
get : function() {
return !this._descriptionSanitizedHtml;
}
});
};
/**
* Gets the maximum height of sections within the info box, minus an offset, in CSS-ready form.
* @param {Number} offset The offset in pixels.
* @returns {String}
*/
InfoBoxViewModel.prototype.maxHeightOffset = function(offset) {
return (this.maxHeight - offset) + 'px';
};
var sanitizerTaskProcessor;
function defaultSanitizer(html) {
if (!defined(sanitizerTaskProcessor)) {
sanitizerTaskProcessor = new TaskProcessor('sanitizeHtml', Infinity);
}
return sanitizerTaskProcessor.scheduleTask(html);
}
/**
* Gets or sets the default HTML sanitization function to use for all instances.
* By default, the Google Caja HTML/CSS sanitizer is loaded in a worker.
* A specific instance can override this property by setting its sanitizer property.
*
* @member
* @type {InfoBoxViewModel~Sanitizer}
*/
InfoBoxViewModel.defaultSanitizer = defaultSanitizer;
defineProperties(InfoBoxViewModel.prototype, {
/**
* Gets an {@link Event} that is fired when the user clicks the camera icon.
* @memberof InfoBoxViewModel.prototype
* @type {Event}
*/
cameraClicked : {
get : function() {
return this._cameraClicked;
}
},
/**
* Gets an {@link Event} that is fired when the user closes the info box.
* @memberof InfoBoxViewModel.prototype
* @type {Event}
*/
closeClicked : {
get : function() {
return this._closeClicked;
}
},
/**
* Gets the HTML sanitization function to use for the selection description.
* @memberof InfoBoxViewModel.prototype
* @type {InfoBoxViewModel~Sanitizer}
*/
sanitizer : {
get : function() {
return defaultValue(this._sanitizer, InfoBoxViewModel.defaultSanitizer);
},
set : function(value) {
this._sanitizer = value;
//Force resanitization of existing text
var oldHtml = this._descriptionRawHtml;
this._descriptionRawHtml = '';
this.descriptionRawHtml = oldHtml;
}
}
});
/**
* A function that sanitizes HTML from a potentially untrusted source, for display in the
* info box.
* @callback InfoBoxViewModel~Sanitizer
*
* @param {String} rawHTML Raw HTML to display.
* @returns {String|Promise} Sanitized HTML, or a Promise for sanitized HTML.
*
* @see InfoBoxViewModel.defaultSanitizer
*/
return InfoBoxViewModel;
});