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// Copyright 2010 The Closure Library Authors. All Rights Reserved.
//
// 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 Displays and edits the value of a cookie.
* Intended only for debugging.
*/
goog.provide('goog.ui.CookieEditor');
goog.require('goog.dom');
goog.require('goog.dom.TagName');
goog.require('goog.events.EventType');
goog.require('goog.net.cookies');
goog.require('goog.string');
goog.require('goog.style');
goog.require('goog.ui.Component');
/**
* Displays and edits the value of a cookie.
* @param {goog.dom.DomHelper=} opt_domHelper Optional DOM helper.
* @constructor
* @extends {goog.ui.Component}
*/
goog.ui.CookieEditor = function(opt_domHelper) {
goog.base(this, opt_domHelper);
};
goog.inherits(goog.ui.CookieEditor, goog.ui.Component);
/**
* Cookie key.
* @type {?string}
* @private
*/
goog.ui.CookieEditor.prototype.cookieKey_;
/**
* Text area.
* @type {HTMLTextAreaElement}
* @private
*/
goog.ui.CookieEditor.prototype.textAreaElem_;
/**
* Clear button.
* @type {HTMLButtonElement}
* @private
*/
goog.ui.CookieEditor.prototype.clearButtonElem_;
/**
* Invalid value warning text.
* @type {HTMLSpanElement}
* @private
*/
goog.ui.CookieEditor.prototype.valueWarningElem_;
/**
* Update button.
* @type {HTMLButtonElement}
* @private
*/
goog.ui.CookieEditor.prototype.updateButtonElem_;
// TODO(user): add combobox for user to select different cookies
/**
* Sets the cookie which this component will edit.
* @param {string} cookieKey Cookie key.
*/
goog.ui.CookieEditor.prototype.selectCookie = function(cookieKey) {
goog.asserts.assert(goog.net.cookies.isValidName(cookieKey));
this.cookieKey_ = cookieKey;
if (this.textAreaElem_) {
this.textAreaElem_.value = goog.net.cookies.get(cookieKey) || '';
}
};
/** @override */
goog.ui.CookieEditor.prototype.canDecorate = function() {
return false;
};
/** @override */
goog.ui.CookieEditor.prototype.createDom = function() {
// Debug-only, so we don't need i18n.
this.clearButtonElem_ = /** @type {HTMLButtonElement} */ (goog.dom.createDom(
goog.dom.TagName.BUTTON, /* attributes */ null, 'Clear'));
this.updateButtonElem_ = /** @type {HTMLButtonElement} */ (goog.dom.createDom(
goog.dom.TagName.BUTTON, /* attributes */ null, 'Update'));
var value = this.cookieKey_ && goog.net.cookies.get(this.cookieKey_);
this.textAreaElem_ = /** @type {HTMLTextAreaElement} */ (goog.dom.createDom(
goog.dom.TagName.TEXTAREA, /* attibutes */ null, value || ''));
this.valueWarningElem_ = /** @type {HTMLSpanElement} */ (goog.dom.createDom(
goog.dom.TagName.SPAN, /* attibutes */ {
'style': 'display:none;color:red'
}, 'Invalid cookie value.'));
this.setElementInternal(goog.dom.createDom(goog.dom.TagName.DIV,
/* attibutes */ null,
this.valueWarningElem_,
goog.dom.createDom(goog.dom.TagName.BR),
this.textAreaElem_,
goog.dom.createDom(goog.dom.TagName.BR),
this.clearButtonElem_,
this.updateButtonElem_));
};
/** @override */
goog.ui.CookieEditor.prototype.enterDocument = function() {
goog.base(this, 'enterDocument');
this.getHandler().listen(this.clearButtonElem_,
goog.events.EventType.CLICK,
this.handleClear_);
this.getHandler().listen(this.updateButtonElem_,
goog.events.EventType.CLICK,
this.handleUpdate_);
};
/**
* Handles user clicking clear button.
* @param {!goog.events.Event} e The click event.
* @private
*/
goog.ui.CookieEditor.prototype.handleClear_ = function(e) {
if (this.cookieKey_) {
goog.net.cookies.remove(this.cookieKey_);
}
this.textAreaElem_.value = '';
};
/**
* Handles user clicking update button.
* @param {!goog.events.Event} e The click event.
* @private
*/
goog.ui.CookieEditor.prototype.handleUpdate_ = function(e) {
if (this.cookieKey_) {
var value = this.textAreaElem_.value;
if (value) {
// Strip line breaks.
value = goog.string.stripNewlines(value);
}
if (goog.net.cookies.isValidValue(value)) {
goog.net.cookies.set(this.cookieKey_, value);
goog.style.showElement(this.valueWarningElem_, false);
} else {
goog.style.showElement(this.valueWarningElem_, true);
}
}
};
/** @override */
goog.ui.CookieEditor.prototype.disposeInternal = function() {
this.clearButtonElem_ = null;
this.cookieKey_ = null;
this.textAreaElem_ = null;
this.updateButtonElem_ = null;
this.valueWarningElem_ = null;
};
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