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335 lines
11 KiB
JavaScript
335 lines
11 KiB
JavaScript
/*
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Copyright (c) 2004-2011, The Dojo Foundation All Rights Reserved.
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Available via Academic Free License >= 2.1 OR the modified BSD license.
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see: http://dojotoolkit.org/license for details
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*/
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if(!dojo._hasResource["dijit.layout.StackController"]){ //_hasResource checks added by build. Do not use _hasResource directly in your code.
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dojo._hasResource["dijit.layout.StackController"] = true;
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dojo.provide("dijit.layout.StackController");
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dojo.require("dijit._Widget");
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dojo.require("dijit._Templated");
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dojo.require("dijit._Container");
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dojo.require("dijit.form.ToggleButton");
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dojo.requireLocalization("dijit", "common", null, "ROOT,ar,ca,cs,da,de,el,es,fi,fr,he,hu,it,ja,kk,ko,nb,nl,pl,pt,pt-pt,ro,ru,sk,sl,sv,th,tr,zh,zh-tw");
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dojo.declare(
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"dijit.layout.StackController",
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[dijit._Widget, dijit._Templated, dijit._Container],
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{
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// summary:
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// Set of buttons to select a page in a page list.
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// description:
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// Monitors the specified StackContainer, and whenever a page is
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// added, deleted, or selected, updates itself accordingly.
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templateString: "<span role='tablist' dojoAttachEvent='onkeypress' class='dijitStackController'></span>",
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// containerId: [const] String
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// The id of the page container that I point to
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containerId: "",
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// buttonWidget: [const] String
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// The name of the button widget to create to correspond to each page
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buttonWidget: "dijit.layout._StackButton",
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constructor: function(){
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this.pane2button = {}; // mapping from pane id to buttons
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this.pane2connects = {}; // mapping from pane id to this.connect() handles
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this.pane2watches = {}; // mapping from pane id to watch() handles
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},
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buildRendering: function(){
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this.inherited(arguments);
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dijit.setWaiRole(this.domNode, "tablist"); // TODO: unneeded? it's in template above.
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},
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postCreate: function(){
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this.inherited(arguments);
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// Listen to notifications from StackContainer
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this.subscribe(this.containerId+"-startup", "onStartup");
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this.subscribe(this.containerId+"-addChild", "onAddChild");
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this.subscribe(this.containerId+"-removeChild", "onRemoveChild");
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this.subscribe(this.containerId+"-selectChild", "onSelectChild");
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this.subscribe(this.containerId+"-containerKeyPress", "onContainerKeyPress");
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},
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onStartup: function(/*Object*/ info){
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// summary:
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// Called after StackContainer has finished initializing
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// tags:
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// private
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dojo.forEach(info.children, this.onAddChild, this);
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if(info.selected){
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// Show button corresponding to selected pane (unless selected
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// is null because there are no panes)
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this.onSelectChild(info.selected);
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}
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},
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destroy: function(){
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for(var pane in this.pane2button){
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this.onRemoveChild(dijit.byId(pane));
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}
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this.inherited(arguments);
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},
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onAddChild: function(/*dijit._Widget*/ page, /*Integer?*/ insertIndex){
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// summary:
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// Called whenever a page is added to the container.
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// Create button corresponding to the page.
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// tags:
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// private
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// create an instance of the button widget
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var cls = dojo.getObject(this.buttonWidget);
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var button = new cls({
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id: this.id + "_" + page.id,
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label: page.title,
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dir: page.dir,
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lang: page.lang,
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showLabel: page.showTitle,
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iconClass: page.iconClass,
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closeButton: page.closable,
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title: page.tooltip
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});
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dijit.setWaiState(button.focusNode,"selected", "false");
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// map from page attribute to corresponding tab button attribute
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var pageAttrList = ["title", "showTitle", "iconClass", "closable", "tooltip"],
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buttonAttrList = ["label", "showLabel", "iconClass", "closeButton", "title"];
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// watch() so events like page title changes are reflected in tab button
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this.pane2watches[page.id] = dojo.map(pageAttrList, function(pageAttr, idx){
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return page.watch(pageAttr, function(name, oldVal, newVal){
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button.set(buttonAttrList[idx], newVal);
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});
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});
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// connections so that clicking a tab button selects the corresponding page
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this.pane2connects[page.id] = [
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this.connect(button, 'onClick', dojo.hitch(this,"onButtonClick", page)),
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this.connect(button, 'onClickCloseButton', dojo.hitch(this,"onCloseButtonClick", page))
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];
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this.addChild(button, insertIndex);
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this.pane2button[page.id] = button;
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page.controlButton = button; // this value might be overwritten if two tabs point to same container
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if(!this._currentChild){ // put the first child into the tab order
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button.focusNode.setAttribute("tabIndex", "0");
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dijit.setWaiState(button.focusNode, "selected", "true");
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this._currentChild = page;
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}
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// make sure all tabs have the same length
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if(!this.isLeftToRight() && dojo.isIE && this._rectifyRtlTabList){
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this._rectifyRtlTabList();
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}
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},
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onRemoveChild: function(/*dijit._Widget*/ page){
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// summary:
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// Called whenever a page is removed from the container.
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// Remove the button corresponding to the page.
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// tags:
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// private
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if(this._currentChild === page){ this._currentChild = null; }
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// disconnect/unwatch connections/watches related to page being removed
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dojo.forEach(this.pane2connects[page.id], dojo.hitch(this, "disconnect"));
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delete this.pane2connects[page.id];
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dojo.forEach(this.pane2watches[page.id], function(w){ w.unwatch(); });
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delete this.pane2watches[page.id];
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var button = this.pane2button[page.id];
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if(button){
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this.removeChild(button);
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delete this.pane2button[page.id];
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button.destroy();
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}
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delete page.controlButton;
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},
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onSelectChild: function(/*dijit._Widget*/ page){
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// summary:
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// Called when a page has been selected in the StackContainer, either by me or by another StackController
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// tags:
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// private
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if(!page){ return; }
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if(this._currentChild){
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var oldButton=this.pane2button[this._currentChild.id];
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oldButton.set('checked', false);
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dijit.setWaiState(oldButton.focusNode, "selected", "false");
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oldButton.focusNode.setAttribute("tabIndex", "-1");
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}
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var newButton=this.pane2button[page.id];
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newButton.set('checked', true);
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dijit.setWaiState(newButton.focusNode, "selected", "true");
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this._currentChild = page;
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newButton.focusNode.setAttribute("tabIndex", "0");
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var container = dijit.byId(this.containerId);
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dijit.setWaiState(container.containerNode, "labelledby", newButton.id);
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},
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onButtonClick: function(/*dijit._Widget*/ page){
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// summary:
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// Called whenever one of my child buttons is pressed in an attempt to select a page
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// tags:
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// private
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var container = dijit.byId(this.containerId);
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container.selectChild(page);
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},
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onCloseButtonClick: function(/*dijit._Widget*/ page){
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// summary:
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// Called whenever one of my child buttons [X] is pressed in an attempt to close a page
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// tags:
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// private
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var container = dijit.byId(this.containerId);
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container.closeChild(page);
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if(this._currentChild){
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var b = this.pane2button[this._currentChild.id];
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if(b){
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dijit.focus(b.focusNode || b.domNode);
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}
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}
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},
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// TODO: this is a bit redundant with forward, back api in StackContainer
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adjacent: function(/*Boolean*/ forward){
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// summary:
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// Helper for onkeypress to find next/previous button
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// tags:
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// private
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if(!this.isLeftToRight() && (!this.tabPosition || /top|bottom/.test(this.tabPosition))){ forward = !forward; }
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// find currently focused button in children array
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var children = this.getChildren();
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var current = dojo.indexOf(children, this.pane2button[this._currentChild.id]);
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// pick next button to focus on
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var offset = forward ? 1 : children.length - 1;
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return children[ (current + offset) % children.length ]; // dijit._Widget
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},
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onkeypress: function(/*Event*/ e){
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// summary:
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// Handle keystrokes on the page list, for advancing to next/previous button
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// and closing the current page if the page is closable.
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// tags:
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// private
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if(this.disabled || e.altKey ){ return; }
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var forward = null;
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if(e.ctrlKey || !e._djpage){
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var k = dojo.keys;
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switch(e.charOrCode){
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case k.LEFT_ARROW:
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case k.UP_ARROW:
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if(!e._djpage){ forward = false; }
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break;
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case k.PAGE_UP:
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if(e.ctrlKey){ forward = false; }
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break;
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case k.RIGHT_ARROW:
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case k.DOWN_ARROW:
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if(!e._djpage){ forward = true; }
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break;
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case k.PAGE_DOWN:
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if(e.ctrlKey){ forward = true; }
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break;
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case k.HOME:
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case k.END:
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var children = this.getChildren();
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if(children && children.length){
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children[e.charOrCode == k.HOME ? 0 : children.length-1].onClick();
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}
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dojo.stopEvent(e);
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break;
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case k.DELETE:
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if(this._currentChild.closable){
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this.onCloseButtonClick(this._currentChild);
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}
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dojo.stopEvent(e);
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break;
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default:
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if(e.ctrlKey){
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if(e.charOrCode === k.TAB){
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this.adjacent(!e.shiftKey).onClick();
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dojo.stopEvent(e);
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}else if(e.charOrCode == "w"){
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if(this._currentChild.closable){
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this.onCloseButtonClick(this._currentChild);
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}
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dojo.stopEvent(e); // avoid browser tab closing.
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}
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}
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}
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// handle next/previous page navigation (left/right arrow, etc.)
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if(forward !== null){
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this.adjacent(forward).onClick();
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dojo.stopEvent(e);
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}
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}
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},
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onContainerKeyPress: function(/*Object*/ info){
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// summary:
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// Called when there was a keypress on the container
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// tags:
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// private
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info.e._djpage = info.page;
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this.onkeypress(info.e);
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}
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});
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dojo.declare("dijit.layout._StackButton",
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dijit.form.ToggleButton,
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{
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// summary:
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// Internal widget used by StackContainer.
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// description:
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// The button-like or tab-like object you click to select or delete a page
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// tags:
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// private
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// Override _FormWidget.tabIndex.
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// StackContainer buttons are not in the tab order by default.
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// Probably we should be calling this.startupKeyNavChildren() instead.
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tabIndex: "-1",
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buildRendering: function(/*Event*/ evt){
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this.inherited(arguments);
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dijit.setWaiRole((this.focusNode || this.domNode), "tab");
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},
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onClick: function(/*Event*/ evt){
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// summary:
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// This is for TabContainer where the tabs are <span> rather than button,
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// so need to set focus explicitly (on some browsers)
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// Note that you shouldn't override this method, but you can connect to it.
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dijit.focus(this.focusNode);
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// ... now let StackController catch the event and tell me what to do
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},
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onClickCloseButton: function(/*Event*/ evt){
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// summary:
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// StackContainer connects to this function; if your widget contains a close button
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// then clicking it should call this function.
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// Note that you shouldn't override this method, but you can connect to it.
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evt.stopPropagation();
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}
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});
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}
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