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-define("dijit/layout/_ContentPaneResizeMixin", [
- "dojo/_base/array", // array.filter array.forEach
- "dojo/_base/declare", // declare
- "dojo/dom-class", // domClass.contains domClass.toggle
- "dojo/dom-geometry",// domGeometry.contentBox domGeometry.marginBox
- "dojo/dom-style",
- "dojo/_base/lang", // lang.mixin
- "dojo/query", // query
- "dojo/sniff", // has("ie")
- "../registry", // registry.byId
- "../Viewport",
- "./utils" // marginBox2contextBox
-], function(array, declare, domClass, domGeometry, domStyle, lang, query, has,
- registry, Viewport, layoutUtils){
-
-// module:
-// dijit/layout/_ContentPaneResizeMixin
-
-
-return declare("dijit.layout._ContentPaneResizeMixin", null, {
- // summary:
- // Resize() functionality of ContentPane. If there's a single layout widget
- // child then it will call resize() with the same dimensions as the ContentPane.
- // Otherwise just calls resize on each child.
- //
- // Also implements basic startup() functionality, where starting the parent
- // will start the children
-
- // doLayout: Boolean
- // - false - don't adjust size of children
- // - true - if there is a single visible child widget, set it's size to however big the ContentPane is
- doLayout: true,
-
- // isLayoutContainer: [protected] Boolean
- // Indicates that this widget will call resize() on it's child widgets
- // when they become visible.
- isLayoutContainer: true,
-
- startup: function(){
- // summary:
- // See `dijit/layout/_LayoutWidget.startup()` for description.
- // Although ContentPane doesn't extend _LayoutWidget, it does implement
- // the same API.
-
- if(this._started){ return; }
-
- var parent = this.getParent();
- this._childOfLayoutWidget = parent && parent.isLayoutContainer;
-
- // I need to call resize() on my child/children (when I become visible), unless
- // I'm the child of a layout widget in which case my parent will call resize() on me and I'll do it then.
- this._needLayout = !this._childOfLayoutWidget;
-
- this.inherited(arguments);
-
- if(this._isShown()){
- this._onShow();
- }
-
- if(!this._childOfLayoutWidget){
- // Since my parent isn't a layout container, and my style *may be* width=height=100%
- // or something similar (either set directly or via a CSS class),
- // monitor when viewport size changes so that I can re-layout.
- // This is more for subclasses of ContentPane than ContentPane itself, although it
- // could be useful for a ContentPane if it has a single child widget inheriting ContentPane's size.
- this.own(Viewport.on("resize", lang.hitch(this, "resize")));
- }
- },
-
- _checkIfSingleChild: function(){
- // summary:
- // Test if we have exactly one visible widget as a child,
- // and if so assume that we are a container for that widget,
- // and should propagate startup() and resize() calls to it.
- // Skips over things like data stores since they aren't visible.
-
- var candidateWidgets = [],
- otherVisibleNodes = false;
-
- query("> *", this.containerNode).some(function(node){
- var widget = registry.byNode(node);
- if(widget && widget.resize){
- candidateWidgets.push(widget);
- }else if(node.offsetHeight){
- otherVisibleNodes = true;
- }
- });
-
- this._singleChild = candidateWidgets.length == 1 && !otherVisibleNodes ?
- candidateWidgets[0] : null;
-
- // So we can set overflow: hidden to avoid a safari bug w/scrollbars showing up (#9449)
- domClass.toggle(this.containerNode, this.baseClass + "SingleChild", !!this._singleChild);
- },
-
- resize: function(changeSize, resultSize){
- // summary:
- // See `dijit/layout/_LayoutWidget.resize()` for description.
- // Although ContentPane doesn't extend _LayoutWidget, it does implement
- // the same API.
-
- this._resizeCalled = true;
-
- this._scheduleLayout(changeSize, resultSize);
- },
-
- _scheduleLayout: function(changeSize, resultSize){
- // summary:
- // Resize myself, and call resize() on each of my child layout widgets, either now
- // (if I'm currently visible) or when I become visible
- if(this._isShown()){
- this._layout(changeSize, resultSize);
- }else{
- this._needLayout = true;
- this._changeSize = changeSize;
- this._resultSize = resultSize;
- }
- },
-
- _layout: function(changeSize, resultSize){
- // summary:
- // Resize myself according to optional changeSize/resultSize parameters, like a layout widget.
- // Also, since I am an isLayoutContainer widget, each of my children expects me to
- // call resize() or layout() on it.
- //
- // Should be called on initialization and also whenever we get new content
- // (from an href, or from set('content', ...))... but deferred until
- // the ContentPane is visible
-
- delete this._needLayout;
-
- // For the TabContainer --> BorderContainer --> ContentPane case, _onShow() is
- // never called directly, so resize() is our trigger to do the initial href download (see [20099]).
- // However, don't load href for closed TitlePanes.
- if(!this._wasShown && this.open !== false){
- this._onShow();
- }
-
- // Set margin box size, unless it wasn't specified, in which case use current size.
- if(changeSize){
- domGeometry.setMarginBox(this.domNode, changeSize);
- }
-
- // Compute content box size of containerNode in case we [later] need to size our single child.
- var cn = this.containerNode;
- if(cn === this.domNode){
- // If changeSize or resultSize was passed to this method and this.containerNode ==
- // this.domNode then we can compute the content-box size without querying the node,
- // which is more reliable (similar to LayoutWidget.resize) (see for example #9449).
- var mb = resultSize || {};
- lang.mixin(mb, changeSize || {}); // changeSize overrides resultSize
- if(!("h" in mb) || !("w" in mb)){
- mb = lang.mixin(domGeometry.getMarginBox(cn), mb); // just use domGeometry.setMarginBox() to fill in missing values
- }
- this._contentBox = layoutUtils.marginBox2contentBox(cn, mb);
- }else{
- this._contentBox = domGeometry.getContentBox(cn);
- }
-
- this._layoutChildren();
- },
-
- _layoutChildren: function(){
- // Call _checkIfSingleChild() again in case app has manually mucked w/the content
- // of the ContentPane (rather than changing it through the set("content", ...) API.
- if(this.doLayout){
- this._checkIfSingleChild();
- }
-
- if(this._singleChild && this._singleChild.resize){
- var cb = this._contentBox || domGeometry.getContentBox(this.containerNode);
-
- // note: if widget has padding this._contentBox will have l and t set,
- // but don't pass them to resize() or it will doubly-offset the child
- this._singleChild.resize({w: cb.w, h: cb.h});
- }else{
- // All my child widgets are independently sized (rather than matching my size),
- // but I still need to call resize() on each child to make it layout.
- array.forEach(this.getChildren(), function(widget){
- if(widget.resize){
- widget.resize();
- }
- });
- }
- },
-
- _isShown: function(){
- // summary:
- // Returns true if the content is currently shown.
- // description:
- // If I am a child of a layout widget then it actually returns true if I've ever been visible,
- // not whether I'm currently visible, since that's much faster than tracing up the DOM/widget
- // tree every call, and at least solves the performance problem on page load by deferring loading
- // hidden ContentPanes until they are first shown
-
- if(this._childOfLayoutWidget){
- // If we are TitlePane, etc - we return that only *IF* we've been resized
- if(this._resizeCalled && "open" in this){
- return this.open;
- }
- return this._resizeCalled;
- }else if("open" in this){
- return this.open; // for TitlePane, etc.
- }else{
- var node = this.domNode, parent = this.domNode.parentNode;
- return (node.style.display != 'none') && (node.style.visibility != 'hidden') && !domClass.contains(node, "dijitHidden") &&
- parent && parent.style && (parent.style.display != 'none');
- }
- },
-
- _onShow: function(){
- // summary:
- // Called when the ContentPane is made visible
- // description:
- // For a plain ContentPane, this is called on initialization, from startup().
- // If the ContentPane is a hidden pane of a TabContainer etc., then it's
- // called whenever the pane is made visible.
- //
- // Does layout/resize of child widget(s)
-
- // Need to keep track of whether ContentPane has been shown (which is different than
- // whether or not it's currently visible).
- this._wasShown = true;
-
- if(this._needLayout){
- // If a layout has been scheduled for when we become visible, do it now
- this._layout(this._changeSize, this._resultSize);
- }
-
- this.inherited(arguments);
- }
-});
-
-});