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1021 lines
35 KiB
JavaScript
1021 lines
35 KiB
JavaScript
define("dijit/_WidgetBase", [
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"require", // require.toUrl
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"dojo/_base/array", // array.forEach array.map
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"dojo/aspect",
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"dojo/_base/config", // config.blankGif
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"dojo/_base/connect", // connect.connect
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"dojo/_base/declare", // declare
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"dojo/dom", // dom.byId
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"dojo/dom-attr", // domAttr.set domAttr.remove
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"dojo/dom-class", // domClass.add domClass.replace
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"dojo/dom-construct", // domConstruct.create domConstruct.destroy domConstruct.place
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"dojo/dom-geometry", // isBodyLtr
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"dojo/dom-style", // domStyle.set, domStyle.get
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"dojo/_base/kernel",
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"dojo/_base/lang", // mixin(), isArray(), etc.
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"dojo/on",
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"dojo/ready",
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"dojo/Stateful", // Stateful
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"dojo/topic",
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"dojo/_base/window", // win.doc.createTextNode
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"./registry" // registry.getUniqueId(), registry.findWidgets()
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], function(require, array, aspect, config, connect, declare,
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dom, domAttr, domClass, domConstruct, domGeometry, domStyle, kernel,
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lang, on, ready, Stateful, topic, win, registry){
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/*=====
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var Stateful = dojo.Stateful;
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=====*/
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// module:
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// dijit/_WidgetBase
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// summary:
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// Future base class for all Dijit widgets.
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// For back-compat, remove in 2.0.
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if(!kernel.isAsync){
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ready(0, function(){
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var requires = ["dijit/_base/manager"];
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require(requires); // use indirection so modules not rolled into a build
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});
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}
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// Nested hash listing attributes for each tag, all strings in lowercase.
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// ex: {"div": {"style": true, "tabindex" true}, "form": { ...
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var tagAttrs = {};
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function getAttrs(obj){
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var ret = {};
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for(var attr in obj){
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ret[attr.toLowerCase()] = true;
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}
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return ret;
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}
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function nonEmptyAttrToDom(attr){
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// summary:
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// Returns a setter function that copies the attribute to this.domNode,
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// or removes the attribute from this.domNode, depending on whether the
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// value is defined or not.
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return function(val){
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domAttr[val ? "set" : "remove"](this.domNode, attr, val);
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this._set(attr, val);
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};
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}
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return declare("dijit._WidgetBase", Stateful, {
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// summary:
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// Future base class for all Dijit widgets.
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// description:
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// Future base class for all Dijit widgets.
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// _Widget extends this class adding support for various features needed by desktop.
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//
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// Provides stubs for widget lifecycle methods for subclasses to extend, like postMixInProperties(), buildRendering(),
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// postCreate(), startup(), and destroy(), and also public API methods like set(), get(), and watch().
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//
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// Widgets can provide custom setters/getters for widget attributes, which are called automatically by set(name, value).
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// For an attribute XXX, define methods _setXXXAttr() and/or _getXXXAttr().
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//
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// _setXXXAttr can also be a string/hash/array mapping from a widget attribute XXX to the widget's DOMNodes:
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//
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// - DOM node attribute
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// | _setFocusAttr: {node: "focusNode", type: "attribute"}
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// | _setFocusAttr: "focusNode" (shorthand)
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// | _setFocusAttr: "" (shorthand, maps to this.domNode)
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// Maps this.focus to this.focusNode.focus, or (last example) this.domNode.focus
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//
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// - DOM node innerHTML
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// | _setTitleAttr: { node: "titleNode", type: "innerHTML" }
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// Maps this.title to this.titleNode.innerHTML
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//
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// - DOM node innerText
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// | _setTitleAttr: { node: "titleNode", type: "innerText" }
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// Maps this.title to this.titleNode.innerText
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//
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// - DOM node CSS class
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// | _setMyClassAttr: { node: "domNode", type: "class" }
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// Maps this.myClass to this.domNode.className
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//
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// If the value of _setXXXAttr is an array, then each element in the array matches one of the
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// formats of the above list.
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//
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// If the custom setter is null, no action is performed other than saving the new value
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// in the widget (in this).
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//
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// If no custom setter is defined for an attribute, then it will be copied
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// to this.focusNode (if the widget defines a focusNode), or this.domNode otherwise.
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// That's only done though for attributes that match DOMNode attributes (title,
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// alt, aria-labelledby, etc.)
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// id: [const] String
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// A unique, opaque ID string that can be assigned by users or by the
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// system. If the developer passes an ID which is known not to be
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// unique, the specified ID is ignored and the system-generated ID is
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// used instead.
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id: "",
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_setIdAttr: "domNode", // to copy to this.domNode even for auto-generated id's
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// lang: [const] String
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// Rarely used. Overrides the default Dojo locale used to render this widget,
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// as defined by the [HTML LANG](http://www.w3.org/TR/html401/struct/dirlang.html#adef-lang) attribute.
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// Value must be among the list of locales specified during by the Dojo bootstrap,
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// formatted according to [RFC 3066](http://www.ietf.org/rfc/rfc3066.txt) (like en-us).
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lang: "",
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// set on domNode even when there's a focus node. but don't set lang="", since that's invalid.
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_setLangAttr: nonEmptyAttrToDom("lang"),
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// dir: [const] String
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// Bi-directional support, as defined by the [HTML DIR](http://www.w3.org/TR/html401/struct/dirlang.html#adef-dir)
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// attribute. Either left-to-right "ltr" or right-to-left "rtl". If undefined, widgets renders in page's
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// default direction.
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dir: "",
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// set on domNode even when there's a focus node. but don't set dir="", since that's invalid.
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_setDirAttr: nonEmptyAttrToDom("dir"), // to set on domNode even when there's a focus node
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// textDir: String
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// Bi-directional support, the main variable which is responsible for the direction of the text.
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// The text direction can be different than the GUI direction by using this parameter in creation
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// of a widget.
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// Allowed values:
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// 1. "ltr"
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// 2. "rtl"
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// 3. "auto" - contextual the direction of a text defined by first strong letter.
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// By default is as the page direction.
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textDir: "",
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// class: String
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// HTML class attribute
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"class": "",
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_setClassAttr: { node: "domNode", type: "class" },
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// style: String||Object
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// HTML style attributes as cssText string or name/value hash
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style: "",
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// title: String
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// HTML title attribute.
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//
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// For form widgets this specifies a tooltip to display when hovering over
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// the widget (just like the native HTML title attribute).
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//
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// For TitlePane or for when this widget is a child of a TabContainer, AccordionContainer,
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// etc., it's used to specify the tab label, accordion pane title, etc.
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title: "",
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// tooltip: String
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// When this widget's title attribute is used to for a tab label, accordion pane title, etc.,
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// this specifies the tooltip to appear when the mouse is hovered over that text.
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tooltip: "",
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// baseClass: [protected] String
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// Root CSS class of the widget (ex: dijitTextBox), used to construct CSS classes to indicate
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// widget state.
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baseClass: "",
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// srcNodeRef: [readonly] DomNode
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// pointer to original DOM node
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srcNodeRef: null,
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// domNode: [readonly] DomNode
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// This is our visible representation of the widget! Other DOM
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// Nodes may by assigned to other properties, usually through the
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// template system's data-dojo-attach-point syntax, but the domNode
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// property is the canonical "top level" node in widget UI.
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domNode: null,
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// containerNode: [readonly] DomNode
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// Designates where children of the source DOM node will be placed.
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// "Children" in this case refers to both DOM nodes and widgets.
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// For example, for myWidget:
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//
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// | <div data-dojo-type=myWidget>
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// | <b> here's a plain DOM node
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// | <span data-dojo-type=subWidget>and a widget</span>
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// | <i> and another plain DOM node </i>
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// | </div>
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//
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// containerNode would point to:
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//
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// | <b> here's a plain DOM node
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// | <span data-dojo-type=subWidget>and a widget</span>
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// | <i> and another plain DOM node </i>
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//
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// In templated widgets, "containerNode" is set via a
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// data-dojo-attach-point assignment.
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//
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// containerNode must be defined for any widget that accepts innerHTML
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// (like ContentPane or BorderContainer or even Button), and conversely
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// is null for widgets that don't, like TextBox.
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containerNode: null,
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/*=====
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// _started: Boolean
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// startup() has completed.
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_started: false,
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=====*/
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// attributeMap: [protected] Object
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// Deprecated. Instead of attributeMap, widget should have a _setXXXAttr attribute
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// for each XXX attribute to be mapped to the DOM.
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//
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// attributeMap sets up a "binding" between attributes (aka properties)
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// of the widget and the widget's DOM.
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// Changes to widget attributes listed in attributeMap will be
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// reflected into the DOM.
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//
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// For example, calling set('title', 'hello')
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// on a TitlePane will automatically cause the TitlePane's DOM to update
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// with the new title.
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//
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// attributeMap is a hash where the key is an attribute of the widget,
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// and the value reflects a binding to a:
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//
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// - DOM node attribute
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// | focus: {node: "focusNode", type: "attribute"}
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// Maps this.focus to this.focusNode.focus
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//
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// - DOM node innerHTML
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// | title: { node: "titleNode", type: "innerHTML" }
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// Maps this.title to this.titleNode.innerHTML
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//
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// - DOM node innerText
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// | title: { node: "titleNode", type: "innerText" }
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// Maps this.title to this.titleNode.innerText
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//
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// - DOM node CSS class
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// | myClass: { node: "domNode", type: "class" }
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// Maps this.myClass to this.domNode.className
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//
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// If the value is an array, then each element in the array matches one of the
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// formats of the above list.
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//
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// There are also some shorthands for backwards compatibility:
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// - string --> { node: string, type: "attribute" }, for example:
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// | "focusNode" ---> { node: "focusNode", type: "attribute" }
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// - "" --> { node: "domNode", type: "attribute" }
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attributeMap: {},
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// _blankGif: [protected] String
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// Path to a blank 1x1 image.
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// Used by <img> nodes in templates that really get their image via CSS background-image.
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_blankGif: config.blankGif || require.toUrl("dojo/resources/blank.gif"),
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//////////// INITIALIZATION METHODS ///////////////////////////////////////
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postscript: function(/*Object?*/params, /*DomNode|String*/srcNodeRef){
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// summary:
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// Kicks off widget instantiation. See create() for details.
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// tags:
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// private
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this.create(params, srcNodeRef);
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},
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create: function(/*Object?*/params, /*DomNode|String?*/srcNodeRef){
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// summary:
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// Kick off the life-cycle of a widget
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// params:
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// Hash of initialization parameters for widget, including
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// scalar values (like title, duration etc.) and functions,
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// typically callbacks like onClick.
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// srcNodeRef:
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// If a srcNodeRef (DOM node) is specified:
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// - use srcNodeRef.innerHTML as my contents
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// - if this is a behavioral widget then apply behavior
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// to that srcNodeRef
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// - otherwise, replace srcNodeRef with my generated DOM
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// tree
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// description:
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// Create calls a number of widget methods (postMixInProperties, buildRendering, postCreate,
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// etc.), some of which of you'll want to override. See http://dojotoolkit.org/reference-guide/dijit/_WidgetBase.html
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// for a discussion of the widget creation lifecycle.
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//
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// Of course, adventurous developers could override create entirely, but this should
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// only be done as a last resort.
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// tags:
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// private
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// store pointer to original DOM tree
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this.srcNodeRef = dom.byId(srcNodeRef);
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// For garbage collection. An array of listener handles returned by this.connect() / this.subscribe()
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this._connects = [];
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// For widgets internal to this widget, invisible to calling code
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this._supportingWidgets = [];
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// this is here for back-compat, remove in 2.0 (but check NodeList-instantiate.html test)
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if(this.srcNodeRef && (typeof this.srcNodeRef.id == "string")){ this.id = this.srcNodeRef.id; }
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// mix in our passed parameters
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if(params){
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this.params = params;
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lang.mixin(this, params);
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}
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this.postMixInProperties();
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// generate an id for the widget if one wasn't specified
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// (be sure to do this before buildRendering() because that function might
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// expect the id to be there.)
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if(!this.id){
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this.id = registry.getUniqueId(this.declaredClass.replace(/\./g,"_"));
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}
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registry.add(this);
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this.buildRendering();
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if(this.domNode){
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// Copy attributes listed in attributeMap into the [newly created] DOM for the widget.
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// Also calls custom setters for all attributes with custom setters.
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this._applyAttributes();
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// If srcNodeRef was specified, then swap out original srcNode for this widget's DOM tree.
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// For 2.0, move this after postCreate(). postCreate() shouldn't depend on the
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// widget being attached to the DOM since it isn't when a widget is created programmatically like
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// new MyWidget({}). See #11635.
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var source = this.srcNodeRef;
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if(source && source.parentNode && this.domNode !== source){
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source.parentNode.replaceChild(this.domNode, source);
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}
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}
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if(this.domNode){
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// Note: for 2.0 may want to rename widgetId to dojo._scopeName + "_widgetId",
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// assuming that dojo._scopeName even exists in 2.0
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this.domNode.setAttribute("widgetId", this.id);
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}
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this.postCreate();
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// If srcNodeRef has been processed and removed from the DOM (e.g. TemplatedWidget) then delete it to allow GC.
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if(this.srcNodeRef && !this.srcNodeRef.parentNode){
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delete this.srcNodeRef;
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}
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this._created = true;
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},
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_applyAttributes: function(){
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// summary:
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// Step during widget creation to copy widget attributes to the
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// DOM according to attributeMap and _setXXXAttr objects, and also to call
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// custom _setXXXAttr() methods.
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//
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// Skips over blank/false attribute values, unless they were explicitly specified
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// as parameters to the widget, since those are the default anyway,
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// and setting tabIndex="" is different than not setting tabIndex at all.
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//
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// For backwards-compatibility reasons attributeMap overrides _setXXXAttr when
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// _setXXXAttr is a hash/string/array, but _setXXXAttr as a functions override attributeMap.
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// tags:
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// private
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// Get list of attributes where this.set(name, value) will do something beyond
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// setting this[name] = value. Specifically, attributes that have:
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// - associated _setXXXAttr() method/hash/string/array
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// - entries in attributeMap.
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var ctor = this.constructor,
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list = ctor._setterAttrs;
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if(!list){
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list = (ctor._setterAttrs = []);
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for(var attr in this.attributeMap){
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list.push(attr);
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}
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var proto = ctor.prototype;
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for(var fxName in proto){
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if(fxName in this.attributeMap){ continue; }
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var setterName = "_set" + fxName.replace(/^[a-z]|-[a-zA-Z]/g, function(c){ return c.charAt(c.length-1).toUpperCase(); }) + "Attr";
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if(setterName in proto){
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list.push(fxName);
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}
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}
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}
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// Call this.set() for each attribute that was either specified as parameter to constructor,
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// or was found above and has a default non-null value. For correlated attributes like value and displayedValue, the one
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// specified as a parameter should take precedence, so apply attributes in this.params last.
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// Particularly important for new DateTextBox({displayedValue: ...}) since DateTextBox's default value is
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// NaN and thus is not ignored like a default value of "".
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array.forEach(list, function(attr){
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if(this.params && attr in this.params){
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// skip this one, do it below
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}else if(this[attr]){
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this.set(attr, this[attr]);
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}
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}, this);
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for(var param in this.params){
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this.set(param, this[param]);
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}
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},
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postMixInProperties: function(){
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// summary:
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// Called after the parameters to the widget have been read-in,
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// but before the widget template is instantiated. Especially
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// useful to set properties that are referenced in the widget
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// template.
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// tags:
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// protected
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},
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buildRendering: function(){
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// summary:
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// Construct the UI for this widget, setting this.domNode.
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// Most widgets will mixin `dijit._TemplatedMixin`, which implements this method.
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// tags:
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// protected
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if(!this.domNode){
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// Create root node if it wasn't created by _Templated
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this.domNode = this.srcNodeRef || domConstruct.create('div');
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}
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// baseClass is a single class name or occasionally a space-separated list of names.
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// Add those classes to the DOMNode. If RTL mode then also add with Rtl suffix.
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// TODO: make baseClass custom setter
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if(this.baseClass){
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var classes = this.baseClass.split(" ");
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if(!this.isLeftToRight()){
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classes = classes.concat( array.map(classes, function(name){ return name+"Rtl"; }));
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}
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domClass.add(this.domNode, classes);
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}
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},
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postCreate: function(){
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// summary:
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// Processing after the DOM fragment is created
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// description:
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// Called after the DOM fragment has been created, but not necessarily
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// added to the document. Do not include any operations which rely on
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// node dimensions or placement.
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// tags:
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// protected
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},
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startup: function(){
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// summary:
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// Processing after the DOM fragment is added to the document
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// description:
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// Called after a widget and its children have been created and added to the page,
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// and all related widgets have finished their create() cycle, up through postCreate().
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// This is useful for composite widgets that need to control or layout sub-widgets.
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// Many layout widgets can use this as a wiring phase.
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if(this._started){ return; }
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this._started = true;
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array.forEach(this.getChildren(), function(obj){
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if(!obj._started && !obj._destroyed && lang.isFunction(obj.startup)){
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obj.startup();
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obj._started = true;
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}
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});
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},
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//////////// DESTROY FUNCTIONS ////////////////////////////////
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destroyRecursive: function(/*Boolean?*/ preserveDom){
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// summary:
|
|
// Destroy this widget and its descendants
|
|
// description:
|
|
// This is the generic "destructor" function that all widget users
|
|
// should call to cleanly discard with a widget. Once a widget is
|
|
// destroyed, it is removed from the manager object.
|
|
// preserveDom:
|
|
// If true, this method will leave the original DOM structure
|
|
// alone of descendant Widgets. Note: This will NOT work with
|
|
// dijit._Templated widgets.
|
|
|
|
this._beingDestroyed = true;
|
|
this.destroyDescendants(preserveDom);
|
|
this.destroy(preserveDom);
|
|
},
|
|
|
|
destroy: function(/*Boolean*/ preserveDom){
|
|
// summary:
|
|
// Destroy this widget, but not its descendants.
|
|
// This method will, however, destroy internal widgets such as those used within a template.
|
|
// preserveDom: Boolean
|
|
// If true, this method will leave the original DOM structure alone.
|
|
// Note: This will not yet work with _Templated widgets
|
|
|
|
this._beingDestroyed = true;
|
|
this.uninitialize();
|
|
|
|
// remove this.connect() and this.subscribe() listeners
|
|
var c;
|
|
while((c = this._connects.pop())){
|
|
c.remove();
|
|
}
|
|
|
|
// destroy widgets created as part of template, etc.
|
|
var w;
|
|
while((w = this._supportingWidgets.pop())){
|
|
if(w.destroyRecursive){
|
|
w.destroyRecursive();
|
|
}else if(w.destroy){
|
|
w.destroy();
|
|
}
|
|
}
|
|
|
|
this.destroyRendering(preserveDom);
|
|
registry.remove(this.id);
|
|
this._destroyed = true;
|
|
},
|
|
|
|
destroyRendering: function(/*Boolean?*/ preserveDom){
|
|
// summary:
|
|
// Destroys the DOM nodes associated with this widget
|
|
// preserveDom:
|
|
// If true, this method will leave the original DOM structure alone
|
|
// during tear-down. Note: this will not work with _Templated
|
|
// widgets yet.
|
|
// tags:
|
|
// protected
|
|
|
|
if(this.bgIframe){
|
|
this.bgIframe.destroy(preserveDom);
|
|
delete this.bgIframe;
|
|
}
|
|
|
|
if(this.domNode){
|
|
if(preserveDom){
|
|
domAttr.remove(this.domNode, "widgetId");
|
|
}else{
|
|
domConstruct.destroy(this.domNode);
|
|
}
|
|
delete this.domNode;
|
|
}
|
|
|
|
if(this.srcNodeRef){
|
|
if(!preserveDom){
|
|
domConstruct.destroy(this.srcNodeRef);
|
|
}
|
|
delete this.srcNodeRef;
|
|
}
|
|
},
|
|
|
|
destroyDescendants: function(/*Boolean?*/ preserveDom){
|
|
// summary:
|
|
// Recursively destroy the children of this widget and their
|
|
// descendants.
|
|
// preserveDom:
|
|
// If true, the preserveDom attribute is passed to all descendant
|
|
// widget's .destroy() method. Not for use with _Templated
|
|
// widgets.
|
|
|
|
// get all direct descendants and destroy them recursively
|
|
array.forEach(this.getChildren(), function(widget){
|
|
if(widget.destroyRecursive){
|
|
widget.destroyRecursive(preserveDom);
|
|
}
|
|
});
|
|
},
|
|
|
|
uninitialize: function(){
|
|
// summary:
|
|
// Stub function. Override to implement custom widget tear-down
|
|
// behavior.
|
|
// tags:
|
|
// protected
|
|
return false;
|
|
},
|
|
|
|
////////////////// GET/SET, CUSTOM SETTERS, ETC. ///////////////////
|
|
|
|
_setStyleAttr: function(/*String||Object*/ value){
|
|
// summary:
|
|
// Sets the style attribute of the widget according to value,
|
|
// which is either a hash like {height: "5px", width: "3px"}
|
|
// or a plain string
|
|
// description:
|
|
// Determines which node to set the style on based on style setting
|
|
// in attributeMap.
|
|
// tags:
|
|
// protected
|
|
|
|
var mapNode = this.domNode;
|
|
|
|
// Note: technically we should revert any style setting made in a previous call
|
|
// to his method, but that's difficult to keep track of.
|
|
|
|
if(lang.isObject(value)){
|
|
domStyle.set(mapNode, value);
|
|
}else{
|
|
if(mapNode.style.cssText){
|
|
mapNode.style.cssText += "; " + value;
|
|
}else{
|
|
mapNode.style.cssText = value;
|
|
}
|
|
}
|
|
|
|
this._set("style", value);
|
|
},
|
|
|
|
_attrToDom: function(/*String*/ attr, /*String*/ value, /*Object?*/ commands){
|
|
// summary:
|
|
// Reflect a widget attribute (title, tabIndex, duration etc.) to
|
|
// the widget DOM, as specified by commands parameter.
|
|
// If commands isn't specified then it's looked up from attributeMap.
|
|
// Note some attributes like "type"
|
|
// cannot be processed this way as they are not mutable.
|
|
//
|
|
// tags:
|
|
// private
|
|
|
|
commands = arguments.length >= 3 ? commands : this.attributeMap[attr];
|
|
|
|
array.forEach(lang.isArray(commands) ? commands : [commands], function(command){
|
|
|
|
// Get target node and what we are doing to that node
|
|
var mapNode = this[command.node || command || "domNode"]; // DOM node
|
|
var type = command.type || "attribute"; // class, innerHTML, innerText, or attribute
|
|
|
|
switch(type){
|
|
case "attribute":
|
|
if(lang.isFunction(value)){ // functions execute in the context of the widget
|
|
value = lang.hitch(this, value);
|
|
}
|
|
|
|
// Get the name of the DOM node attribute; usually it's the same
|
|
// as the name of the attribute in the widget (attr), but can be overridden.
|
|
// Also maps handler names to lowercase, like onSubmit --> onsubmit
|
|
var attrName = command.attribute ? command.attribute :
|
|
(/^on[A-Z][a-zA-Z]*$/.test(attr) ? attr.toLowerCase() : attr);
|
|
|
|
domAttr.set(mapNode, attrName, value);
|
|
break;
|
|
case "innerText":
|
|
mapNode.innerHTML = "";
|
|
mapNode.appendChild(win.doc.createTextNode(value));
|
|
break;
|
|
case "innerHTML":
|
|
mapNode.innerHTML = value;
|
|
break;
|
|
case "class":
|
|
domClass.replace(mapNode, value, this[attr]);
|
|
break;
|
|
}
|
|
}, this);
|
|
},
|
|
|
|
get: function(name){
|
|
// summary:
|
|
// Get a property from a widget.
|
|
// name:
|
|
// The property to get.
|
|
// description:
|
|
// Get a named property from a widget. The property may
|
|
// potentially be retrieved via a getter method. If no getter is defined, this
|
|
// just retrieves the object's property.
|
|
//
|
|
// For example, if the widget has properties `foo` and `bar`
|
|
// and a method named `_getFooAttr()`, calling:
|
|
// `myWidget.get("foo")` would be equivalent to calling
|
|
// `widget._getFooAttr()` and `myWidget.get("bar")`
|
|
// would be equivalent to the expression
|
|
// `widget.bar2`
|
|
var names = this._getAttrNames(name);
|
|
return this[names.g] ? this[names.g]() : this[name];
|
|
},
|
|
|
|
set: function(name, value){
|
|
// summary:
|
|
// Set a property on a widget
|
|
// name:
|
|
// The property to set.
|
|
// value:
|
|
// The value to set in the property.
|
|
// description:
|
|
// Sets named properties on a widget which may potentially be handled by a
|
|
// setter in the widget.
|
|
//
|
|
// For example, if the widget has properties `foo` and `bar`
|
|
// and a method named `_setFooAttr()`, calling
|
|
// `myWidget.set("foo", "Howdy!")` would be equivalent to calling
|
|
// `widget._setFooAttr("Howdy!")` and `myWidget.set("bar", 3)`
|
|
// would be equivalent to the statement `widget.bar = 3;`
|
|
//
|
|
// set() may also be called with a hash of name/value pairs, ex:
|
|
//
|
|
// | myWidget.set({
|
|
// | foo: "Howdy",
|
|
// | bar: 3
|
|
// | });
|
|
//
|
|
// This is equivalent to calling `set(foo, "Howdy")` and `set(bar, 3)`
|
|
|
|
if(typeof name === "object"){
|
|
for(var x in name){
|
|
this.set(x, name[x]);
|
|
}
|
|
return this;
|
|
}
|
|
var names = this._getAttrNames(name),
|
|
setter = this[names.s];
|
|
if(lang.isFunction(setter)){
|
|
// use the explicit setter
|
|
var result = setter.apply(this, Array.prototype.slice.call(arguments, 1));
|
|
}else{
|
|
// Mapping from widget attribute to DOMNode attribute/value/etc.
|
|
// Map according to:
|
|
// 1. attributeMap setting, if one exists (TODO: attributeMap deprecated, remove in 2.0)
|
|
// 2. _setFooAttr: {...} type attribute in the widget (if one exists)
|
|
// 3. apply to focusNode or domNode if standard attribute name, excluding funcs like onClick.
|
|
// Checks if an attribute is a "standard attribute" by whether the DOMNode JS object has a similar
|
|
// attribute name (ex: accept-charset attribute matches jsObject.acceptCharset).
|
|
// Note also that Tree.focusNode() is a function not a DOMNode, so test for that.
|
|
var defaultNode = this.focusNode && !lang.isFunction(this.focusNode) ? "focusNode" : "domNode",
|
|
tag = this[defaultNode].tagName,
|
|
attrsForTag = tagAttrs[tag] || (tagAttrs[tag] = getAttrs(this[defaultNode])),
|
|
map = name in this.attributeMap ? this.attributeMap[name] :
|
|
names.s in this ? this[names.s] :
|
|
((names.l in attrsForTag && typeof value != "function") ||
|
|
/^aria-|^data-|^role$/.test(name)) ? defaultNode : null;
|
|
if(map != null){
|
|
this._attrToDom(name, value, map);
|
|
}
|
|
this._set(name, value);
|
|
}
|
|
return result || this;
|
|
},
|
|
|
|
_attrPairNames: {}, // shared between all widgets
|
|
_getAttrNames: function(name){
|
|
// summary:
|
|
// Helper function for get() and set().
|
|
// Caches attribute name values so we don't do the string ops every time.
|
|
// tags:
|
|
// private
|
|
|
|
var apn = this._attrPairNames;
|
|
if(apn[name]){ return apn[name]; }
|
|
var uc = name.replace(/^[a-z]|-[a-zA-Z]/g, function(c){ return c.charAt(c.length-1).toUpperCase(); });
|
|
return (apn[name] = {
|
|
n: name+"Node",
|
|
s: "_set"+uc+"Attr", // converts dashes to camel case, ex: accept-charset --> _setAcceptCharsetAttr
|
|
g: "_get"+uc+"Attr",
|
|
l: uc.toLowerCase() // lowercase name w/out dashes, ex: acceptcharset
|
|
});
|
|
},
|
|
|
|
_set: function(/*String*/ name, /*anything*/ value){
|
|
// summary:
|
|
// Helper function to set new value for specified attribute, and call handlers
|
|
// registered with watch() if the value has changed.
|
|
var oldValue = this[name];
|
|
this[name] = value;
|
|
if(this._watchCallbacks && this._created && value !== oldValue){
|
|
this._watchCallbacks(name, oldValue, value);
|
|
}
|
|
},
|
|
|
|
on: function(/*String*/ type, /*Function*/ func){
|
|
// summary:
|
|
// Call specified function when event occurs, ex: myWidget.on("click", function(){ ... }).
|
|
// description:
|
|
// Call specified function when event `type` occurs, ex: `myWidget.on("click", function(){ ... })`.
|
|
// Note that the function is not run in any particular scope, so if (for example) you want it to run in the
|
|
// widget's scope you must do `myWidget.on("click", lang.hitch(myWidget, func))`.
|
|
|
|
return aspect.after(this, this._onMap(type), func, true);
|
|
},
|
|
|
|
_onMap: function(/*String*/ type){
|
|
// summary:
|
|
// Maps on() type parameter (ex: "mousemove") to method name (ex: "onMouseMove")
|
|
var ctor = this.constructor, map = ctor._onMap;
|
|
if(!map){
|
|
map = (ctor._onMap = {});
|
|
for(var attr in ctor.prototype){
|
|
if(/^on/.test(attr)){
|
|
map[attr.replace(/^on/, "").toLowerCase()] = attr;
|
|
}
|
|
}
|
|
}
|
|
return map[type.toLowerCase()]; // String
|
|
},
|
|
|
|
toString: function(){
|
|
// summary:
|
|
// Returns a string that represents the widget
|
|
// description:
|
|
// When a widget is cast to a string, this method will be used to generate the
|
|
// output. Currently, it does not implement any sort of reversible
|
|
// serialization.
|
|
return '[Widget ' + this.declaredClass + ', ' + (this.id || 'NO ID') + ']'; // String
|
|
},
|
|
|
|
getChildren: function(){
|
|
// summary:
|
|
// Returns all the widgets contained by this, i.e., all widgets underneath this.containerNode.
|
|
// Does not return nested widgets, nor widgets that are part of this widget's template.
|
|
return this.containerNode ? registry.findWidgets(this.containerNode) : []; // dijit._Widget[]
|
|
},
|
|
|
|
getParent: function(){
|
|
// summary:
|
|
// Returns the parent widget of this widget
|
|
return registry.getEnclosingWidget(this.domNode.parentNode);
|
|
},
|
|
|
|
connect: function(
|
|
/*Object|null*/ obj,
|
|
/*String|Function*/ event,
|
|
/*String|Function*/ method){
|
|
// summary:
|
|
// Connects specified obj/event to specified method of this object
|
|
// and registers for disconnect() on widget destroy.
|
|
// description:
|
|
// Provide widget-specific analog to dojo.connect, except with the
|
|
// implicit use of this widget as the target object.
|
|
// Events connected with `this.connect` are disconnected upon
|
|
// destruction.
|
|
// returns:
|
|
// A handle that can be passed to `disconnect` in order to disconnect before
|
|
// the widget is destroyed.
|
|
// example:
|
|
// | var btn = new dijit.form.Button();
|
|
// | // when foo.bar() is called, call the listener we're going to
|
|
// | // provide in the scope of btn
|
|
// | btn.connect(foo, "bar", function(){
|
|
// | console.debug(this.toString());
|
|
// | });
|
|
// tags:
|
|
// protected
|
|
|
|
var handle = connect.connect(obj, event, this, method);
|
|
this._connects.push(handle);
|
|
return handle; // _Widget.Handle
|
|
},
|
|
|
|
disconnect: function(handle){
|
|
// summary:
|
|
// Disconnects handle created by `connect`.
|
|
// Also removes handle from this widget's list of connects.
|
|
// tags:
|
|
// protected
|
|
var i = array.indexOf(this._connects, handle);
|
|
if(i != -1){
|
|
handle.remove();
|
|
this._connects.splice(i, 1);
|
|
}
|
|
},
|
|
|
|
subscribe: function(t, method){
|
|
// summary:
|
|
// Subscribes to the specified topic and calls the specified method
|
|
// of this object and registers for unsubscribe() on widget destroy.
|
|
// description:
|
|
// Provide widget-specific analog to dojo.subscribe, except with the
|
|
// implicit use of this widget as the target object.
|
|
// t: String
|
|
// The topic
|
|
// method: Function
|
|
// The callback
|
|
// example:
|
|
// | var btn = new dijit.form.Button();
|
|
// | // when /my/topic is published, this button changes its label to
|
|
// | // be the parameter of the topic.
|
|
// | btn.subscribe("/my/topic", function(v){
|
|
// | this.set("label", v);
|
|
// | });
|
|
// tags:
|
|
// protected
|
|
var handle = topic.subscribe(t, lang.hitch(this, method));
|
|
this._connects.push(handle);
|
|
return handle; // _Widget.Handle
|
|
},
|
|
|
|
unsubscribe: function(/*Object*/ handle){
|
|
// summary:
|
|
// Unsubscribes handle created by this.subscribe.
|
|
// Also removes handle from this widget's list of subscriptions
|
|
// tags:
|
|
// protected
|
|
this.disconnect(handle);
|
|
},
|
|
|
|
isLeftToRight: function(){
|
|
// summary:
|
|
// Return this widget's explicit or implicit orientation (true for LTR, false for RTL)
|
|
// tags:
|
|
// protected
|
|
return this.dir ? (this.dir == "ltr") : domGeometry.isBodyLtr(); //Boolean
|
|
},
|
|
|
|
isFocusable: function(){
|
|
// summary:
|
|
// Return true if this widget can currently be focused
|
|
// and false if not
|
|
return this.focus && (domStyle.get(this.domNode, "display") != "none");
|
|
},
|
|
|
|
placeAt: function(/* String|DomNode|_Widget */reference, /* String?|Int? */position){
|
|
// summary:
|
|
// Place this widget's domNode reference somewhere in the DOM based
|
|
// on standard domConstruct.place conventions, or passing a Widget reference that
|
|
// contains and addChild member.
|
|
//
|
|
// description:
|
|
// A convenience function provided in all _Widgets, providing a simple
|
|
// shorthand mechanism to put an existing (or newly created) Widget
|
|
// somewhere in the dom, and allow chaining.
|
|
//
|
|
// reference:
|
|
// The String id of a domNode, a domNode reference, or a reference to a Widget possessing
|
|
// an addChild method.
|
|
//
|
|
// position:
|
|
// If passed a string or domNode reference, the position argument
|
|
// accepts a string just as domConstruct.place does, one of: "first", "last",
|
|
// "before", or "after".
|
|
//
|
|
// If passed a _Widget reference, and that widget reference has an ".addChild" method,
|
|
// it will be called passing this widget instance into that method, supplying the optional
|
|
// position index passed.
|
|
//
|
|
// returns:
|
|
// dijit._Widget
|
|
// Provides a useful return of the newly created dijit._Widget instance so you
|
|
// can "chain" this function by instantiating, placing, then saving the return value
|
|
// to a variable.
|
|
//
|
|
// example:
|
|
// | // create a Button with no srcNodeRef, and place it in the body:
|
|
// | var button = new dijit.form.Button({ label:"click" }).placeAt(win.body());
|
|
// | // now, 'button' is still the widget reference to the newly created button
|
|
// | button.on("click", function(e){ console.log('click'); }));
|
|
//
|
|
// example:
|
|
// | // create a button out of a node with id="src" and append it to id="wrapper":
|
|
// | var button = new dijit.form.Button({},"src").placeAt("wrapper");
|
|
//
|
|
// example:
|
|
// | // place a new button as the first element of some div
|
|
// | var button = new dijit.form.Button({ label:"click" }).placeAt("wrapper","first");
|
|
//
|
|
// example:
|
|
// | // create a contentpane and add it to a TabContainer
|
|
// | var tc = dijit.byId("myTabs");
|
|
// | new dijit.layout.ContentPane({ href:"foo.html", title:"Wow!" }).placeAt(tc)
|
|
|
|
if(reference.declaredClass && reference.addChild){
|
|
reference.addChild(this, position);
|
|
}else{
|
|
domConstruct.place(this.domNode, reference, position);
|
|
}
|
|
return this;
|
|
},
|
|
|
|
getTextDir: function(/*String*/ text,/*String*/ originalDir){
|
|
// summary:
|
|
// Return direction of the text.
|
|
// The function overridden in the _BidiSupport module,
|
|
// its main purpose is to calculate the direction of the
|
|
// text, if was defined by the programmer through textDir.
|
|
// tags:
|
|
// protected.
|
|
return originalDir;
|
|
},
|
|
|
|
applyTextDir: function(/*===== element, text =====*/){
|
|
// summary:
|
|
// The function overridden in the _BidiSupport module,
|
|
// originally used for setting element.dir according to this.textDir.
|
|
// In this case does nothing.
|
|
// element: DOMNode
|
|
// text: String
|
|
// tags:
|
|
// protected.
|
|
},
|
|
|
|
defer: function(fcn, delay){
|
|
// summary:
|
|
// Wrapper to setTimeout to avoid deferred functions executing
|
|
// after the originating widget has been destroyed.
|
|
// Returns an object handle with a remove method (that returns null) (replaces clearTimeout).
|
|
// fcn: function reference
|
|
// delay: Optional number (defaults to 0)
|
|
// tags:
|
|
// protected.
|
|
var timer = setTimeout(lang.hitch(this,
|
|
function(){
|
|
timer = null;
|
|
if(!this._destroyed){
|
|
lang.hitch(this, fcn)();
|
|
}
|
|
}),
|
|
delay || 0
|
|
);
|
|
return {
|
|
remove: function(){
|
|
if(timer){
|
|
clearTimeout(timer);
|
|
timer = null;
|
|
}
|
|
return null; // so this works well: handle = handle.remove();
|
|
}
|
|
};
|
|
}
|
|
});
|
|
|
|
});
|