mediawiki-extensions-Visual.../modules/ve/ui/tools/ve.ui.DropdownTool.js
Timo Tijhof 4e64187beb Document and clean up events in all the things
* Document them consistently between secetions Inheritance and
  Static Properties under their own (new) section Events.
* Removed any quotes or brackets around the event name in existing
  @emit annotations
  Search: @emit.*['"{}(){}]
* For every call to this.emit() anywhere, added @emits.
* Fixed all warnings for references to undefined events
  (introduced as a result of the previous point).
  Event handler parameter documented based on the emit() call
  and actual handlers using the event. Usually the latter is
  more elaborate.
* Extend coverage of jQuery as needed
  (copied from mwcore/maintenance/jsduck/external.js
  written by me, hereby implicitly and explicitly released under MIT).

Specifics
* ve.ce.Surface#onContentChange: Fixed type of range from Object to ve.Range.
* ve.ce.SurfaceObserver#poll: Fix syntax for code from {} to `backticks`.
* ve.ui.Toolbar#onContextChange: Doesn't actually emit "clearState" event.
  Removed #onClearState in Tool, ButtonTool and DropdownTool.

Bug: 45872
Change-Id: Id879aa769b2c72d86a0322e75dddeb868211ce28
2013-03-20 09:58:27 -07:00

152 lines
3.7 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 )
);
if ( this.constructor.static.titleMessage ) {
this.$.attr( 'title', ve.msg( this.constructor.static.titleMessage ) );
}
this.$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
);
};
/**
* 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;
};