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// Copyright 2008 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.
goog.provide('goog.ui.equation.EquationEditorDialog');
goog.require('goog.dom');
goog.require('goog.ui.Dialog');
goog.require('goog.ui.Dialog.ButtonSet');
goog.require('goog.ui.equation.EquationEditor');
goog.require('goog.ui.equation.ImageRenderer');
goog.require('goog.ui.equation.TexEditor');
/**
* User interface for equation editor plugin standalone tests.
* @constructor
* @param {string=} opt_equation Encoded equation. If not specified, starts with
* an empty equation.
* @extends {goog.ui.Dialog}
*/
goog.ui.equation.EquationEditorDialog = function(opt_equation) {
goog.ui.Dialog.call(this);
this.setTitle('Equation Editor');
var buttonSet = new goog.ui.Dialog.ButtonSet();
buttonSet.set(goog.ui.Dialog.DefaultButtonKeys.OK,
opt_equation ? 'Save changes' : 'Insert equation',
true);
buttonSet.set(goog.ui.Dialog.DefaultButtonKeys.CANCEL,
'Cancel', false, true);
this.setButtonSet(buttonSet);
// Create the main editor contents.
var contentElement = this.getContentElement();
var domHelper = goog.dom.getDomHelper(contentElement);
var context = this.populateContext_();
/**
* The equation editor main API.
* @type {goog.ui.equation.TexEditor}
* @private
*/
this.equationEditor_ =
new goog.ui.equation.TexEditor(context, '', domHelper);
this.equationEditor_.addEventListener(
goog.ui.equation.EquationEditor.EventType.CHANGE,
this.onChange_, false, this);
this.equationEditor_.render(this.getContentElement());
this.setEquation(opt_equation || '');
goog.dom.classes.add(this.getDialogElement(), 'ee-modal-dialog');
};
goog.inherits(goog.ui.equation.EquationEditorDialog, goog.ui.Dialog);
/**
* The dialog's OK button element.
* @type {Element?}
* @private
*/
goog.ui.equation.EquationEditorDialog.prototype.okButton_;
/** @override */
goog.ui.equation.EquationEditorDialog.prototype.setVisible = function(visible) {
goog.base(this, 'setVisible', visible);
this.equationEditor_.setVisible(visible);
};
/**
* Populates the context of this dialog.
* @return {Object} The context that this dialog runs in.
* @private
*/
goog.ui.equation.EquationEditorDialog.prototype.populateContext_ = function() {
var context = {};
context.paletteManager = new goog.ui.equation.PaletteManager();
return context;
};
/**
* Handles CHANGE event fired when user changes equation.
* @param {goog.ui.equation.ChangeEvent} e The event object.
* @private
*/
goog.ui.equation.EquationEditorDialog.prototype.onChange_ = function(e) {
if (!this.okButton_) {
this.okButton_ = this.getButtonSet().getButton(
goog.ui.Dialog.DefaultButtonKeys.OK);
}
this.okButton_.disabled = !e.isValid;
};
/**
* Returns the encoded equation.
* @return {string} The encoded equation.
*/
goog.ui.equation.EquationEditorDialog.prototype.getEquation = function() {
return this.equationEditor_.getEquation();
};
/**
* Sets the encoded equation.
* @param {string} equation The encoded equation.
*/
goog.ui.equation.EquationEditorDialog.prototype.setEquation =
function(equation) {
this.equationEditor_.setEquation(equation);
};
/**
* @return {string} The html code to embed in the document.
*/
goog.ui.equation.EquationEditorDialog.prototype.getHtml = function() {
return this.equationEditor_.getHtml();
};
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