can/control/view/view.js

MIT-licensed, client-side, JavaScript framework that makes building rich web applications easy.

steal('can/util', 'can/control', 'can/view', function (can) {

	//!steal-remove-start
	can.dev.warn("can/control/view is a deprecated plugin and will be removed in a future release.");
	//!steal-remove-end

	var URI = steal.URI || steal.File || function(path) {
			return [path];
		};
	can.Control.getFolder = function () {
		return can.underscore(this.fullName.replace(/\./g, '/'))
			.replace('/Controllers', '');
	};
	can.Control._calculatePosition = function (Class, view) {
		var classParts = Class.fullName.split('.'),
			action_name = 'init',
			// Remove prefix (usually 2 elements)
			classPartsWithoutPrefix = classParts.slice(0);
		classPartsWithoutPrefix.splice(0, 2);
		var hasControllers = classParts.length > 2 && classParts[1] === 'Controllers',
			path = hasControllers ? can.underscore(classParts[0]) : can.underscore(classParts.join('/')),
			controller_name = can.underscore(classPartsWithoutPrefix.join('/'))
				.toLowerCase(),
			suffix = typeof view === 'string' && /\.[\w\d]+$/.test(view) ? '' : can.view.ext;
		//calculate view
		if (typeof view === 'string') {
			if (view.substr(0, 2) === '//') {} else {
				view = '//' + URI(path)
					.join('views/' + (view.indexOf('/') !== -1 ? view : (hasControllers ? controller_name + '/' : '') + view)) + suffix;
			}
		} else if (!view) {
			view = '//' + URI(path)
				.join('views/' + (hasControllers ? controller_name + '/' : '') + action_name.replace(/\.|#/g, '')
					.replace(/ /g, '_')) + suffix;
		}
		return view;
	};
	var calculateHelpers = function (myhelpers) {
		var helpers = {};
		if (myhelpers) {
			if (can.isArray(myhelpers)) {
				for (var h = 0; h < myhelpers.length; h++) {
					can.extend(helpers, myhelpers[h]);
				}
			} else {
				can.extend(helpers, myhelpers);
			}
		} else {
			if (this._default_helpers) {
				helpers = this._default_helpers;
			}
			//load from name
			var current = window;
			var parts = this.constructor.fullName.split(/\./);
			for (var i = 0; i < parts.length; i++) {
				if (current) {
					if (typeof current.Helpers === 'object') {
						can.extend(helpers, current.Helpers);
					}
					current = current[parts[i]];
				}
			}
			if (current && typeof current.Helpers === 'object') {
				can.extend(helpers, current.Helpers);
			}
			this._default_helpers = helpers;
		}
		return helpers;
	};
	can.Control.prototype.view = function (view, data, myhelpers) {
		//WARN: can.Control.view is depreciated!
		//shift args if no view is provided
		if (typeof view !== 'string' && !myhelpers) {
			myhelpers = data;
			data = view;
			view = null;
		}
		//guess from controller name
		view = can.Control._calculatePosition(this.constructor, view, this.called);
		//calculate data
		data = data || this;
		//calculate helpers
		var helpers = calculateHelpers.call(this, myhelpers);
		return can.view(view, data, helpers); //what about controllers in other folders?
	};
	return can;
});