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319 lines
11 KiB
JavaScript
319 lines
11 KiB
JavaScript
define("dijit/popup", [
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"dojo/_base/array", // array.forEach array.some
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"dojo/aspect",
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"dojo/_base/connect", // connect._keypress
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"dojo/_base/declare", // declare
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"dojo/dom", // dom.isDescendant
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"dojo/dom-attr", // domAttr.set
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"dojo/dom-construct", // domConstruct.create domConstruct.destroy
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"dojo/dom-geometry", // domGeometry.isBodyLtr
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"dojo/dom-style", // domStyle.set
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"dojo/_base/event", // event.stop
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"dojo/keys",
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"dojo/_base/lang", // lang.hitch
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"dojo/on",
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"dojo/sniff", // has("ie") has("mozilla")
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"./place",
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"./BackgroundIframe",
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"./main" // dijit (defining dijit.popup to match API doc)
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], function(array, aspect, connect, declare, dom, domAttr, domConstruct, domGeometry, domStyle, event, keys, lang, on, has,
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place, BackgroundIframe, dijit){
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// module:
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// dijit/popup
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/*=====
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var __OpenArgs = {
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// popup: Widget
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// widget to display
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// parent: Widget
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// the button etc. that is displaying this popup
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// around: DomNode
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// DOM node (typically a button); place popup relative to this node. (Specify this *or* "x" and "y" parameters.)
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// x: Integer
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// Absolute horizontal position (in pixels) to place node at. (Specify this *or* "around" parameter.)
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// y: Integer
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// Absolute vertical position (in pixels) to place node at. (Specify this *or* "around" parameter.)
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// orient: Object|String
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// When the around parameter is specified, orient should be a list of positions to try, ex:
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// | [ "below", "above" ]
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// For backwards compatibility it can also be an (ordered) hash of tuples of the form
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// (around-node-corner, popup-node-corner), ex:
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// | { "BL": "TL", "TL": "BL" }
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// where BL means "bottom left" and "TL" means "top left", etc.
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//
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// dijit/popup.open() tries to position the popup according to each specified position, in order,
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// until the popup appears fully within the viewport.
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//
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// The default value is ["below", "above"]
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//
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// When an (x,y) position is specified rather than an around node, orient is either
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// "R" or "L". R (for right) means that it tries to put the popup to the right of the mouse,
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// specifically positioning the popup's top-right corner at the mouse position, and if that doesn't
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// fit in the viewport, then it tries, in order, the bottom-right corner, the top left corner,
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// and the top-right corner.
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// onCancel: Function
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// callback when user has canceled the popup by:
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//
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// 1. hitting ESC or
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// 2. by using the popup widget's proprietary cancel mechanism (like a cancel button in a dialog);
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// i.e. whenever popupWidget.onCancel() is called, args.onCancel is called
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// onClose: Function
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// callback whenever this popup is closed
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// onExecute: Function
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// callback when user "executed" on the popup/sub-popup by selecting a menu choice, etc. (top menu only)
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// padding: place.__Position
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// adding a buffer around the opening position. This is only useful when around is not set.
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};
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=====*/
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function destroyWrapper(){
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// summary:
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// Function to destroy wrapper when popup widget is destroyed.
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// Left in this scope to avoid memory leak on IE8 on refresh page, see #15206.
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if(this._popupWrapper){
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domConstruct.destroy(this._popupWrapper);
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delete this._popupWrapper;
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}
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}
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var PopupManager = declare(null, {
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// summary:
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// Used to show drop downs (ex: the select list of a ComboBox)
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// or popups (ex: right-click context menus).
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// _stack: dijit/_WidgetBase[]
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// Stack of currently popped up widgets.
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// (someone opened _stack[0], and then it opened _stack[1], etc.)
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_stack: [],
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// _beginZIndex: Number
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// Z-index of the first popup. (If first popup opens other
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// popups they get a higher z-index.)
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_beginZIndex: 1000,
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_idGen: 1,
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_createWrapper: function(/*Widget*/ widget){
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// summary:
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// Initialization for widgets that will be used as popups.
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// Puts widget inside a wrapper DIV (if not already in one),
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// and returns pointer to that wrapper DIV.
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var wrapper = widget._popupWrapper,
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node = widget.domNode;
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if(!wrapper){
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// Create wrapper <div> for when this widget [in the future] will be used as a popup.
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// This is done early because of IE bugs where creating/moving DOM nodes causes focus
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// to go wonky, see tests/robot/Toolbar.html to reproduce
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wrapper = domConstruct.create("div", {
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"class":"dijitPopup",
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style:{ display: "none"},
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role: "presentation"
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}, widget.ownerDocumentBody);
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wrapper.appendChild(node);
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var s = node.style;
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s.display = "";
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s.visibility = "";
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s.position = "";
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s.top = "0px";
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widget._popupWrapper = wrapper;
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aspect.after(widget, "destroy", destroyWrapper, true);
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}
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return wrapper;
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},
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moveOffScreen: function(/*Widget*/ widget){
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// summary:
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// Moves the popup widget off-screen.
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// Do not use this method to hide popups when not in use, because
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// that will create an accessibility issue: the offscreen popup is
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// still in the tabbing order.
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// Create wrapper if not already there
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var wrapper = this._createWrapper(widget);
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domStyle.set(wrapper, {
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visibility: "hidden",
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top: "-9999px", // prevent transient scrollbar causing misalign (#5776), and initial flash in upper left (#10111)
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display: ""
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});
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},
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hide: function(/*Widget*/ widget){
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// summary:
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// Hide this popup widget (until it is ready to be shown).
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// Initialization for widgets that will be used as popups
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//
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// Also puts widget inside a wrapper DIV (if not already in one)
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//
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// If popup widget needs to layout it should
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// do so when it is made visible, and popup._onShow() is called.
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// Create wrapper if not already there
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var wrapper = this._createWrapper(widget);
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domStyle.set(wrapper, "display", "none");
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},
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getTopPopup: function(){
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// summary:
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// Compute the closest ancestor popup that's *not* a child of another popup.
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// Ex: For a TooltipDialog with a button that spawns a tree of menus, find the popup of the button.
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var stack = this._stack;
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for(var pi=stack.length-1; pi > 0 && stack[pi].parent === stack[pi-1].widget; pi--){
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/* do nothing, just trying to get right value for pi */
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}
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return stack[pi];
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},
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open: function(/*__OpenArgs*/ args){
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// summary:
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// Popup the widget at the specified position
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//
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// example:
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// opening at the mouse position
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// | popup.open({popup: menuWidget, x: evt.pageX, y: evt.pageY});
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//
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// example:
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// opening the widget as a dropdown
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// | popup.open({parent: this, popup: menuWidget, around: this.domNode, onClose: function(){...}});
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//
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// Note that whatever widget called dijit/popup.open() should also listen to its own _onBlur callback
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// (fired from _base/focus.js) to know that focus has moved somewhere else and thus the popup should be closed.
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var stack = this._stack,
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widget = args.popup,
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orient = args.orient || ["below", "below-alt", "above", "above-alt"],
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ltr = args.parent ? args.parent.isLeftToRight() : domGeometry.isBodyLtr(widget.ownerDocument),
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around = args.around,
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id = (args.around && args.around.id) ? (args.around.id+"_dropdown") : ("popup_"+this._idGen++);
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// If we are opening a new popup that isn't a child of a currently opened popup, then
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// close currently opened popup(s). This should happen automatically when the old popups
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// gets the _onBlur() event, except that the _onBlur() event isn't reliable on IE, see [22198].
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while(stack.length && (!args.parent || !dom.isDescendant(args.parent.domNode, stack[stack.length-1].widget.domNode))){
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this.close(stack[stack.length-1].widget);
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}
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// Get pointer to popup wrapper, and create wrapper if it doesn't exist
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var wrapper = this._createWrapper(widget);
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domAttr.set(wrapper, {
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id: id,
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style: {
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zIndex: this._beginZIndex + stack.length
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},
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"class": "dijitPopup " + (widget.baseClass || widget["class"] || "").split(" ")[0] +"Popup",
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dijitPopupParent: args.parent ? args.parent.id : ""
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});
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if(has("ie") || has("mozilla")){
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if(!widget.bgIframe){
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// setting widget.bgIframe triggers cleanup in _Widget.destroy()
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widget.bgIframe = new BackgroundIframe(wrapper);
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}
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}
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// position the wrapper node and make it visible
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var best = around ?
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place.around(wrapper, around, orient, ltr, widget.orient ? lang.hitch(widget, "orient") : null) :
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place.at(wrapper, args, orient == 'R' ? ['TR','BR','TL','BL'] : ['TL','BL','TR','BR'], args.padding);
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wrapper.style.display = "";
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wrapper.style.visibility = "visible";
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widget.domNode.style.visibility = "visible"; // counteract effects from _HasDropDown
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var handlers = [];
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// provide default escape and tab key handling
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// (this will work for any widget, not just menu)
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handlers.push(on(wrapper, connect._keypress, lang.hitch(this, function(evt){
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if(evt.charOrCode == keys.ESCAPE && args.onCancel){
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event.stop(evt);
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args.onCancel();
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}else if(evt.charOrCode === keys.TAB){
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event.stop(evt);
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var topPopup = this.getTopPopup();
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if(topPopup && topPopup.onCancel){
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topPopup.onCancel();
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}
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}
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})));
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// watch for cancel/execute events on the popup and notify the caller
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// (for a menu, "execute" means clicking an item)
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if(widget.onCancel && args.onCancel){
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handlers.push(widget.on("cancel", args.onCancel));
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}
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handlers.push(widget.on(widget.onExecute ? "execute" : "change", lang.hitch(this, function(){
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var topPopup = this.getTopPopup();
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if(topPopup && topPopup.onExecute){
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topPopup.onExecute();
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}
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})));
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stack.push({
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widget: widget,
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parent: args.parent,
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onExecute: args.onExecute,
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onCancel: args.onCancel,
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onClose: args.onClose,
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handlers: handlers
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});
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if(widget.onOpen){
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// TODO: in 2.0 standardize onShow() (used by StackContainer) and onOpen() (used here)
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widget.onOpen(best);
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}
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return best;
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},
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close: function(/*Widget?*/ popup){
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// summary:
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// Close specified popup and any popups that it parented.
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// If no popup is specified, closes all popups.
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var stack = this._stack;
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// Basically work backwards from the top of the stack closing popups
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// until we hit the specified popup, but IIRC there was some issue where closing
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// a popup would cause others to close too. Thus if we are trying to close B in [A,B,C]
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// closing C might close B indirectly and then the while() condition will run where stack==[A]...
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// so the while condition is constructed defensively.
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while((popup && array.some(stack, function(elem){return elem.widget == popup;})) ||
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(!popup && stack.length)){
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var top = stack.pop(),
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widget = top.widget,
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onClose = top.onClose;
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if(widget.onClose){
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// TODO: in 2.0 standardize onHide() (used by StackContainer) and onClose() (used here)
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widget.onClose();
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}
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var h;
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while(h = top.handlers.pop()){ h.remove(); }
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// Hide the widget and it's wrapper unless it has already been destroyed in above onClose() etc.
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if(widget && widget.domNode){
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this.hide(widget);
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}
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if(onClose){
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onClose();
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}
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}
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}
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});
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return (dijit.popup = new PopupManager());
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});
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