mediawiki-extensions-Visual.../modules/ve/ui/ve.ui.Dialog.js
Trevor Parscal 20585c956a Close dialogs on escape
Objective:

* Make the escape key close dialogs, like pressing the X button
* Auto-focus the iframe on window open

Bonus:

* Add ESCAPE and SHIFT to ve.Keys and use instead of hardcoding numbers
* Use ve.Keys in some other places too

Bug: 49809
Change-Id: Ibf1fce5e24efcd83d9e1465c3cdaac24ff3fb45d
2013-06-27 17:00:35 -07:00

167 lines
4.1 KiB
JavaScript

/*!
* VisualEditor UserInterface Dialog class.
*
* @copyright 2011-2013 VisualEditor Team and others; see AUTHORS.txt
* @license The MIT License (MIT); see LICENSE.txt
*/
/**
* UserInterface dialog.
*
* @class
* @abstract
* @extends ve.ui.Window
*
* @constructor
* @param {ve.ui.Surface} surface
* @param {Object} [config] Config options
*/
ve.ui.Dialog = function VeUiDialog( surface, config ) {
// Parent constructor
ve.ui.Window.call( this, surface, config );
// Properties
this.visible = false;
this.onWindowMouseWheelHandler = ve.bind( this.onWindowMouseWheel, this );
this.onDocumentKeyDownHandler = ve.bind( this.onDocumentKeyDown, this );
// Initialization
this.$.addClass( 've-ui-dialog' );
this.$.on( 'mousedown', false );
};
/* Inheritance */
ve.inheritClass( ve.ui.Dialog, ve.ui.Window );
/* Methods */
/**
* Handle close button click events.
*
* @method
*/
ve.ui.Dialog.prototype.onCloseButtonClick = function () {
this.close( 'cancel' );
};
/**
* Handle apply button click events.
*
* @method
*/
ve.ui.Dialog.prototype.onApplyButtonClick = function () {
this.close( 'apply' );
};
/**
* Handle window mouse wheel events.
*
* @method
* @param {jQuery.Event} e Mouse wheel event
*/
ve.ui.Dialog.prototype.onWindowMouseWheel = function () {
return false;
};
/**
* Handle document key down events.
*
* @method
* @param {jQuery.Event} e Key down event
*/
ve.ui.Dialog.prototype.onDocumentKeyDown = function ( e ) {
switch ( e.which ) {
case ve.Keys.PAGEUP:
case ve.Keys.PAGEDOWN:
case ve.Keys.END:
case ve.Keys.HOME:
case ve.Keys.LEFT:
case ve.Keys.UP:
case ve.Keys.RIGHT:
case ve.Keys.DOWN:
// Prevent any key events that might cause scrolling
return false;
}
};
/**
* Handle frame document key down events.
*
* @method
* @param {jQuery.Event} e Key down event
*/
ve.ui.Dialog.prototype.onFrameDocumentKeyDown = function ( e ) {
if ( e.which === ve.Keys.ESCAPE ) {
this.close( 'cancel' );
return false;
}
};
/**
* Open window.
*
* Wraps the parent open method. Disables native top-level window scrolling behavior.
*
* @method
* @emits setup
* @emits open
*/
ve.ui.Dialog.prototype.open = function () {
ve.ui.Window.prototype.open.call( this );
// Prevent scrolling in top-level window
$( window ).on( 'mousewheel', this.onWindowMouseWheelHandler );
$( document ).on( 'keydown', this.onDocumentKeyDownHandler );
};
/**
* Close dialog.
*
* Wraps the parent close method. Allows animation by delaying parent close call, while still
* providing the same recursion blocking. Restores native top-level window scrolling behavior.
*
* @method
* @param {boolean} action Action that caused the window to be closed
* @emits close
*/
ve.ui.Dialog.prototype.close = function ( action ) {
if ( !this.closing ) {
this.$.addClass( 've-ui-dialog-closing' );
setTimeout( ve.bind( function () {
ve.ui.Window.prototype.close.call( this, action );
this.$.removeClass( 've-ui-dialog-closing' );
}, this ), 250 );
// Allow scrolling in top-level window
$( window ).off( 'mousewheel', this.onWindowMouseWheelHandler );
$( document ).off( 'keydown', this.onDocumentKeyDownHandler );
}
};
ve.ui.Dialog.prototype.initialize = function () {
// Parent method
ve.ui.Window.prototype.initialize.call( this );
// Properties
this.applyButton = new ve.ui.ButtonWidget( {
'$$': this.$$, 'label': ve.msg( 'visualeditor-dialog-action-apply' ), 'flags': ['primary']
} );
this.closeButton = new ve.ui.IconButtonWidget( {
'$$': this.$$, 'title': ve.msg( 'visualeditor-dialog-action-close' ), 'icon': 'close'
} );
// Events
this.closeButton.connect( this, { 'click': 'onCloseButtonClick' } );
this.applyButton.connect( this, { 'click': 'onApplyButtonClick' } );
this.frame.$document.on( 'keydown', ve.bind( this.onFrameDocumentKeyDown, this ) );
// Initialization
this.closeButton.$.addClass( 've-ui-window-closeButton' );
this.applyButton.$.addClass( 've-ui-window-applyButton' );
this.$head.append( this.closeButton.$ );
this.$foot.append( this.applyButton.$ );
};
/* Initialization */
ve.ui.Dialog.static.addLocalStylesheets( [ 've.ui.Dialog.css' ] );