mediawiki-extensions-Visual.../modules/ve/ui/tools/ve.ui.DropdownTool.js
Ed Sanders 0ce20b6e16 Create MediaWiki specific nodes to contain MW specific rules.
Heading and Preformatted nodes have rules that should only
exist under a document node in MediaWiki.

Two new node types have been created as has a new DropdownTool which
uses these. The MW init options have been changed to use the new
DropdownTool.

Bug: 45295

Change-Id: I3f47e1ae1f5c1415bde58a75385e4bf5f4b8fffc
2013-03-12 16:28:29 -07:00

156 lines
3.8 KiB
JavaScript

/*!
* VisualEditor UserInterface DropdownTool class.
*
* @copyright 2011-2013 VisualEditor Team and others; see AUTHORS.txt
* @license The MIT License (MIT); see LICENSE.txt
*/
/**
* UserInterface dropdown tool.
*
* @abstract
* @class
* @extends ve.ui.Tool
* @constructor
* @param {ve.ui.Toolbar} toolbar
* @param {Object} [config] Config options
*/
ve.ui.DropdownTool = function VeUiDropdownTool( toolbar, config ) {
// Parent constructor
ve.ui.Tool.call( this, toolbar, config );
// Properties
this.menu = new ve.ui.MenuWidget();
this.$icon = this.$$( '<div class="ve-ui-dropdownTool-icon ve-ui-icon-down"></div>' );
this.$label = this.$$( '<div class="ve-ui-dropdownTool-label"></div>' );
this.$labelText = this.$$( '<span>&nbsp;</span>' );
// Events
this.$$( document )
.add( this.toolbar.getSurface().getView().$ )
.mousedown( ve.bind( this.onBlur, this ) );
this.$.on( {
'mousedown': ve.bind( this.onMouseDown, this ),
'mouseup': ve.bind( this.onMouseUp, this )
} );
this.menu.on( 'select', ve.bind( this.onMenuItemSelect, this ) );
// Initialization
this.$
.append( this.$icon, this.$label, this.menu.$ )
.addClass( 've-ui-dropdownTool ve-ui-dropdownTool-' + ( this.constructor.static.cssName || this.constructor.static.name ) )
.attr( 'title', ve.msg( this.constructor.static.titleMessage ) );
this.$label.append( this.$labelText );
};
/* Inheritance */
ve.inheritClass( ve.ui.DropdownTool, ve.ui.Tool );
/* Methods */
/**
* Handle the mouse button being pressed.
*
* @method
* @param {jQuery.Event} e Mouse down event
*/
ve.ui.DropdownTool.prototype.onMouseDown = function ( e ) {
if ( e.which === 1 ) {
return false;
}
};
/**
* Handle the mouse button being released.
*
* @method
* @param {jQuery.Event} e Mouse up event
*/
ve.ui.DropdownTool.prototype.onMouseUp = function ( e ) {
if ( e.which === 1 ) {
// Toggle menu
if ( this.menu.isVisible() ) {
this.menu.hide();
} else {
this.menu.show();
}
}
return false;
};
/**
* Handle focus being lost.
*
* The event is actually generated from a mousedown on an element outside the menu, so it is not
* a normal blur event object.
*
* @method
* @param {jQuery.Event} e Mouse down event
*/
ve.ui.DropdownTool.prototype.onBlur = function ( e ) {
if ( e.which === 1 ) {
this.menu.hide();
}
};
/**
* Handle one of the items in the menu being selected.
*
* This should not be overridden in subclasses, it simple connects events from the internal menu
* to the onSelect method.
*
* @method
* @param {ve.ui.MenuItemWidget|null} item Selected menu item, null if none is selected
*/
ve.ui.DropdownTool.prototype.onMenuItemSelect = function ( item ) {
if ( this.toolbar.getSurface().isEnabled() ) {
this.setLabel( item && item.label );
this.onSelect( item );
}
};
/**
* Handle dropdown option being selected.
*
* This is an abstract method that must be overridden in a concrete subclass.
*
* @abstract
* @method
* @param {ve.ui.MenuItemWidget} item Menu item
*/
ve.ui.DropdownTool.prototype.onSelect = function () {
throw new Error(
've.ui.DropdownTool.onSelect not implemented in this subclass:' + this.constructor
);
};
/**
* Handle toolbar state being cleared.
*
* @method
*/
ve.ui.DropdownTool.prototype.onClearState = function () {
this.setLabel();
};
/**
* Set the label.
*
* If the label value is empty, undefined or only contains whitespace an empty label will be used.
*
* @method
* @param {jQuery|string} [value] Label text
* @chainable
*/
ve.ui.DropdownTool.prototype.setLabel = function ( value ) {
if ( typeof value === 'string' && value.length && /[^\s]*/.test( value ) ) {
this.$labelText.text( value );
} else if ( value instanceof jQuery ) {
this.$labelText.empty().append( value );
} else {
this.$labelText.html( '&nbsp;' );
}
return this;
};