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* VisualEditor UserInterface Tool classes.
*
* @copyright See AUTHORS.txt
*/
/**
* UserInterface tool.
*
* @class
* @abstract
* @extends OO.ui.Tool
*
* @constructor
* @param {OO.ui.ToolGroup} toolGroup
* @param {Object} [config] Configuration options
*/
ve.ui.Tool = function VeUiTool() {
// Parent constructor
ve.ui.Tool.super.apply( this, arguments );
// Disable initially
this.setDisabled( true );
};
/* Inheritance */
OO.inheritClass( ve.ui.Tool, OO.ui.Tool );
/* Static Properties */
/**
* Command to execute when tool is selected.
*
* @static
* @property {string|null}
* @inheritable
*/
ve.ui.Tool.static.commandName = null;
/**
* Deactivate tool after it's been selected.
*
* Use this for tools which don't display as active when relevant content is selected, such as
* insertion-only tools.
*
* @static
* @property {boolean}
* @inheritable
*/
ve.ui.Tool.static.deactivateOnSelect = true;
/**
* If this tool is used to create a ve.ui.ToolContextItem, should that item be embeddable
*
* @static
* @property {boolean}
* @inheritable
*/
ve.ui.Tool.static.makesEmbeddableContextItem = true;
/**
* Icon to use when this tool is shown in a non-toolbar context
*
* @static
* @property {string|null}
* @inheritable
*/
ve.ui.Tool.static.fallbackIcon = null;
/**
* Get the symbolic command name for this tool.
*
* @static
* @return {string|null}
*/
ve.ui.Tool.static.getCommandName = function () {
return this.commandName;
};
/**
* Get the command for this tool in a given surface context
*
* @static
* @param {ve.ui.Surface} surface
* @return {ve.ui.Command|null|undefined} Undefined means command not found, null means no command set
*/
ve.ui.Tool.static.getCommand = function ( surface ) {
var commandName = this.getCommandName();
if ( commandName === null ) {
return null;
}
return surface.commandRegistry.lookup( commandName );
};
/* Methods */
/**
* Handle the toolbar state being updated.
*
* @param {ve.dm.SurfaceFragment|null} fragment Surface fragment
* @param {Object|null} direction Context direction with 'inline' & 'block' properties
*/
ve.ui.Tool.prototype.onUpdateState = function ( fragment ) {
var command = this.getCommand();
if ( command !== null ) {
this.setDisabled(
!command || !fragment || !command.isExecutable( fragment ) ||
// Show command as disabled if a selection is required and the surface
// is read-only. Don't do this in Command as some are actually allowed
// to run, e.g. selectAll
// TODO: Add an allowedInReadOnly flag to some commands
( command.supportedSelections && fragment.getSurface() && fragment.getSurface().isReadOnly() )
);
}
};
/**
* @inheritdoc
*/
ve.ui.Tool.prototype.onSelect = function () {
var contextClosePromise,
command = this.getCommand(),
surface = this.toolbar.getSurface(),
tool = this;
if ( command instanceof ve.ui.Command ) {
if ( surface.context.inspector ) {
contextClosePromise = surface.context.inspector.close().closed;
} else {
contextClosePromise = ve.createDeferred().resolve().promise();
}
}
if ( this.constructor.static.deactivateOnSelect ) {
// It's fine to call setActive here before the promise resolves; it
// just disables the button, stopping double-clicks and making it feel more responsive
// if the promise is slow.
this.setActive( false );
}
if ( contextClosePromise ) {
// N.B. If contextClosePromise is already resolved, then the handler is called
// before the call to .done returns
contextClosePromise.done( function () {
if ( !command.execute( surface, undefined, 'tool' ) ) {
// If the command fails, ensure the tool is not active
tool.setActive( false );
}
} );
}
};
/**
* Get the command for this tool.
*
* @return {ve.ui.Command|null|undefined} Undefined means command not found, null means no command set
*/
ve.ui.Tool.prototype.getCommand = function () {
return this.constructor.static.getCommand( this.toolbar.getSurface() );
};
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