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* VisualEditor UserInterface Command class.
*
* @copyright See AUTHORS.txt
*/
/**
* Command that executes an action.
*
* @class
*
* @constructor
* @param {string} name Symbolic name for the command
* @param {string} action Action to execute when command is triggered
* @param {string} method Method to call on action when executing
* @param {Object} [options]
* @param {string[]|null} [options.supportedSelections] List of supported selection types, or null for all
* @param {Array} [options.args] Additional arguments to pass to the action when executing
*/
ve.ui.Command = function VeUiCommand( name, action, method, options ) {
options = options || {};
this.name = name;
this.action = action;
this.method = method;
this.supportedSelections = options.supportedSelections || null;
this.args = options.args || [];
};
/* Methods */
/**
* Execute command on a surface.
*
* @param {ve.ui.Surface} surface Surface to execute command on
* @param {Array} [args] Custom arguments to override defaults
* @param {string} [source] Label for the source of the command.
* One of 'trigger', 'sequence', 'tool', or 'context'
* @return {boolean} Command was executed
*/
ve.ui.Command.prototype.execute = function ( surface, args, source ) {
args = args || this.args;
if ( this.isExecutable( surface.getModel().getFragment() ) ) {
return surface.executeWithSource.apply( surface, [ this.action, this.method, source ].concat( args ) );
} else {
return false;
}
};
/**
* Check if this command is executable on a given surface fragment
*
* @param {ve.dm.SurfaceFragment} fragment Surface fragment
* @return {boolean} The command can execute on this fragment
*/
ve.ui.Command.prototype.isExecutable = function ( fragment ) {
return !this.supportedSelections ||
this.supportedSelections.indexOf( fragment.getSelection().getName() ) !== -1;
};
/**
* Get command action.
*
* @return {string} action Action to execute when command is triggered
*/
ve.ui.Command.prototype.getAction = function () {
return this.action;
};
/**
* Get command method.
*
* @return {string} method Method to call on action when executing
*/
ve.ui.Command.prototype.getMethod = function () {
return this.method;
};
/**
* Get command name.
*
* @return {string} name The symbolic name of the command.
*/
ve.ui.Command.prototype.getName = function () {
return this.name;
};
/**
* Get command arguments.
*
* @return {Array} args Additional arguments to pass to the action when executing
*/
ve.ui.Command.prototype.getArgs = function () {
return this.args;
};
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