From 7e23cfe542f29148ed315586830785de59201f92 Mon Sep 17 00:00:00 2001 From: Valerio Virgillito Date: Wed, 1 Feb 2012 16:43:08 -0800 Subject: Adding njUtils as a component and adding it to the application object Signed-off-by: Valerio Virgillito --- js/lib/nj-utils.js | 214 +++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 214 insertions(+) create mode 100644 js/lib/nj-utils.js (limited to 'js/lib') diff --git a/js/lib/nj-utils.js b/js/lib/nj-utils.js new file mode 100644 index 00000000..59ea6095 --- /dev/null +++ b/js/lib/nj-utils.js @@ -0,0 +1,214 @@ +/* +This file contains proprietary software owned by Motorola Mobility, Inc.
+No rights, expressed or implied, whatsoever to this software are provided by Motorola Mobility, Inc. hereunder.
+(c) Copyright 2011 Motorola Mobility, Inc. All Rights Reserved. + */ + +var Montage = require("montage/core/core").Montage, + Component = require("montage/ui/component").Component, + ElementModel = require("js/models/element-model").ElementModel, + Properties3D = require("js/models/properties-3d").Properties3D, + ShapeModel = require("js/models/shape-model").ShapeModel, + ControllerFactory = require("js/controllers/elements/controller-factory").ControllerFactory; + +exports.NJUtils = Montage.create( Component, { + + + + /* =============== DOM Access ================ */ + + ///// Quick "getElementById" + $ : { + value: function(id) { + return document.getElementById(id); + } + }, + + ///// Quick "getElementsByClassName" which also returns as an Array + ///// Can return as NodeList by passing true as second argument + $$ : { + value: function(className, asNodeList) { + var list = document.getElementsByClassName(className); + return (asNodeList) ? list : this.toArray(list); + } + }, + + ///// Get child nodes of element + ///// Omit filter to only return element nodes + ///// Pass in filter function to minimize collection, or + ///// set to true to include all nodes + children : { + value : function(el, filter) { + var f = filter || function(item) { + return item.nodeType === 1; + }; + return this.toArray(el.childNodes).filter(f); + } + }, + + /* ============= DOM Manipulation ============= */ + + ///// Creates and returns text node from string + textNode : { + value: function(text) { + return document.createTextNode(text); + } + }, + + ///// Quick "createElement" function "attr" can be classname or object + ///// with attribute key/values + make : { + value: function(tag, attr) { + var el = document.createElement(tag); + if (typeof attr === 'object') { + for (var a in attr) { + if (attr.hasOwnProperty(a)) { + el[a] = attr[a]; + } + } + } else if (typeof attr === 'string') { + el.className = (el.className + ' ' + attr).trim(); + } + + return el; + } + }, + + ///// Element factory function for Ninja Elements + ///// selection is the string displayed in the PI + makeNJElement: { + value: function(tag, selection, controller, attr, isShape) { + var el = this.make(tag, attr); + this.makeElementModel(el, selection, controller, isShape); + + return el; + } + }, + + ///// Element Model creation for existing elements + ///// TODO: find a different place for this function + makeElementModel: { + value: function(el, selection, controller, isShape) { + var p3d = Montage.create(Properties3D).init(el); + var shapeProps = null; + if(isShape) { + shapeProps = Montage.create(ShapeModel); + } + + el.elementModel = Montage.create(ElementModel, { + type: { value: el.nodeName}, + selection: { value: selection}, + controller: { value: ControllerFactory.getController(controller)}, + pi: { value: controller + "Pi"}, + props3D: { value: p3d}, + shapeModel: { value: shapeProps} + }); + + } + }, + + ///// Element Model creation for existing elements based on element type. + ///// TODO: find a different place for this function and return different element models based on type. + makeElementModel2: { + value: function(el) { + this.makeElementModel(el, "Div", "block", false); + } + }, + + ///// Removes all child nodes and returns node + ///// Accepts a single node, or an array of dom nodes + empty : { + value: function(node) { + var elements = [], + self = this; + if (node.constructor === Array) { + node.forEach(function(el) { self.empty(el) }); + } else { + this.toArray(node.childNodes).forEach(function(child) { + child.parentNode.removeChild(child); + }); + } + + return node; + } + }, + + queryParentSelector : { + value: function(el, strSelector) { + // queryParentSelector: + // Given a DOM element el (required), walk up the DOM tree + // and find the first parent that matches selector strSelector (required). + // Returns: The element that matches, or false if there is no match + // or if insufficient parameters are supplied. + + if ((typeof(el) === "undefined") || (typeof(strSelector) === "undefined")) { + // Parameters are required, m'kay? + return false; + } else if ((typeof(el) !== "object") || (typeof(strSelector) !== "string" )) { + // You also have to use the right parameters. + return false; + } + + // First, get an empty clone of the parent. + var myParent = el.parentNode; + var clone = myParent.cloneNode(false); + if (clone === null) { + return false; + } + + // If we're at the top of the DOM, our clone will be an htmlDocument. + // htmlDocument has no tagName. + if (typeof(clone.tagName) !== "undefined") { + // create a bogus div to use as a base for querySelector + var temp = document.createElement("div"); + + // Append the clone to the bogus div + temp.appendChild(clone); + + // Now we can use querySelector! Sweet. + var selectorTest = temp.querySelector(strSelector); + + // What has querySelector returned? + if (selectorTest === null) { + // No match, so recurse. + return this.queryParentSelector(myParent, strSelector); + } else { + // Match! Return the element. + return myParent; + } + } else { + // We're at the top of the DOM so we're done. + return false; + } + } + + }, + + /* ================= Style methods ================= */ + + ///// Get computed height of element + height : { + value: function(node, pseudo) { + return node.ownerDocument.defaultView.getComputedStyle(node, pseudo).getPropertyValue('height'); + } + }, + + /* ================= Array methods ================= */ + + ///// Return an array from an array-like object + toArray : { + value: function(arrayLikeObj) { + return Array.prototype.slice.call(arrayLikeObj); + } + }, + + /* ================= String methods ================= */ + + ///// Return the last part of a path (e.g. filename) + getFileNameFromPath : { + value: function(path) { + return path.substr(path.lastIndexOf('/') + 1); + } + } + +}); -- cgit v1.2.3