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//>>built
define("dojox/mobile/ScrollableView", [
"dojo/_base/array",
"dojo/_base/declare",
"dojo/dom-class",
"dojo/dom-construct",
"dijit/registry", // registry.byNode
"./View",
"./_ScrollableMixin"
], function(array, declare, domClass, domConstruct, registry, View, ScrollableMixin){
/*=====
var View = dojox.mobile.View;
var ScrollableMixin = dojox.mobile._ScrollableMixin;
=====*/
// module:
// dojox/mobile/ScrollableView
// summary:
// A container that has a touch scrolling capability.
return declare("dojox.mobile.ScrollableView", [View, ScrollableMixin], {
// summary:
// A container that has a touch scrolling capability.
// description:
// ScrollableView is a subclass of View (=dojox.mobile.View).
// Unlike the base View class, ScrollableView's domNode always stays
// at the top of the screen and its height is "100%" of the screen.
// In this fixed domNode, containerNode scrolls. Browser's default
// scrolling behavior is disabled, and the scrolling machinery is
// re-implemented with JavaScript. Thus the user does not need to use the
// two-finger operation to scroll an inner DIV (containerNode).
// The main purpose of this widget is to realize fixed-positioned header
// and/or footer bars.
// scrollableParams: Object
// Parameters for dojox.mobile.scrollable.init().
scrollableParams: null,
// keepScrollPos: Boolean
// Overrides dojox.mobile.View.keepScrollPos.
keepScrollPos: false,
constructor: function(){
this.scrollableParams = {noResize: true};
},
buildRendering: function(){
this.inherited(arguments);
domClass.add(this.domNode, "mblScrollableView");
this.domNode.style.overflow = "hidden";
this.domNode.style.top = "0px";
this.containerNode = domConstruct.create("DIV",
{className:"mblScrollableViewContainer"}, this.domNode);
this.containerNode.style.position = "absolute";
this.containerNode.style.top = "0px"; // view bar is relative
if(this.scrollDir === "v"){
this.containerNode.style.width = "100%";
}
this.reparent();
this.findAppBars();
},
resize: function(){
// summary:
// Calls resize() of each child widget.
this.inherited(arguments); // scrollable#resize() will be called
array.forEach(this.getChildren(), function(child){
if(child.resize){ child.resize(); }
});
},
isTopLevel: function(e){
// summary:
// Returns true if this is a top-level widget.
// Overrides dojox.mobile.scrollable.
var parent = this.getParent && this.getParent();
return (!parent || !parent.resize); // top level widget
},
addChild: function(widget, /*Number?*/insertIndex){
var c = widget.domNode;
var fixed = this.checkFixedBar(c, true);
if(fixed){
// Addition of a fixed bar is an exceptional case.
// It has to be added to domNode, not containerNode.
// In this case, insertIndex is ignored.
this.domNode.appendChild(c);
if(fixed === "top"){
this.fixedHeaderHeight = c.offsetHeight;
this.isLocalHeader = true;
}else if(fixed === "bottom"){
this.fixedFooterHeight = c.offsetHeight;
this.isLocalFooter = true;
c.style.bottom = "0px";
}
this.resize();
if(this._started && !widget._started){
widget.startup();
}
}else{
this.inherited(arguments);
}
},
reparent: function(){
// summary:
// Moves all the children, except header and footer, to
// containerNode.
var i, idx, len, c;
for(i = 0, idx = 0, len = this.domNode.childNodes.length; i < len; i++){
c = this.domNode.childNodes[idx];
// search for view-specific header or footer
if(c === this.containerNode || this.checkFixedBar(c, true)){
idx++;
continue;
}
this.containerNode.appendChild(this.domNode.removeChild(c));
}
},
onAfterTransitionIn: function(moveTo, dir, transition, context, method){
this.flashScrollBar();
},
getChildren: function(){
// summary:
// Overrides _WidgetBase#getChildren to add local fixed bars,
// which are not under containerNode, to the children array.
var children = this.inherited(arguments);
if(this.fixedHeader && this.fixedHeader.parentNode === this.domNode){
children.push(registry.byNode(this.fixedHeader));
}
if(this.fixedFooter && this.fixedFooter.parentNode === this.domNode){
children.push(registry.byNode(this.fixedFooter));
}
return children;
}
});
});
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