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548 lines
19 KiB
JavaScript
548 lines
19 KiB
JavaScript
define("dijit/layout/BorderContainer", [
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"dojo/_base/array", // array.filter array.forEach array.map
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"dojo/cookie", // cookie
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"dojo/_base/declare", // declare
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"dojo/dom-class", // domClass.add domClass.remove domClass.toggle
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"dojo/dom-construct", // domConstruct.destroy domConstruct.place
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"dojo/dom-geometry", // domGeometry.marginBox
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"dojo/dom-style", // domStyle.style
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"dojo/_base/event", // event.stop
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"dojo/keys",
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"dojo/_base/lang", // lang.getObject lang.hitch
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"dojo/on",
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"dojo/touch",
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"../_WidgetBase",
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"../_Widget",
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"../_TemplatedMixin",
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"./_LayoutWidget",
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"./utils" // layoutUtils.layoutChildren
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], function(array, cookie, declare, domClass, domConstruct, domGeometry, domStyle, event, keys, lang, on, touch,
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_WidgetBase, _Widget, _TemplatedMixin, _LayoutWidget, layoutUtils){
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// module:
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// dijit/layout/BorderContainer
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var _Splitter = declare("dijit.layout._Splitter", [_Widget, _TemplatedMixin ],
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{
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// summary:
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// A draggable spacer between two items in a `dijit/layout/BorderContainer`.
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// description:
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// This is instantiated by `dijit/layout/BorderContainer`. Users should not
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// create it directly.
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// tags:
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// private
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/*=====
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// container: [const] dijit/layout/BorderContainer
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// Pointer to the parent BorderContainer
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container: null,
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// child: [const] dijit/layout/_LayoutWidget
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// Pointer to the pane associated with this splitter
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child: null,
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// region: [const] String
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// Region of pane associated with this splitter.
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// "top", "bottom", "left", "right".
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region: null,
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=====*/
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// live: [const] Boolean
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// If true, the child's size changes and the child widget is redrawn as you drag the splitter;
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// otherwise, the size doesn't change until you drop the splitter (by mouse-up)
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live: true,
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templateString: '<div class="dijitSplitter" data-dojo-attach-event="onkeypress:_onKeyPress,press:_startDrag,onmouseenter:_onMouse,onmouseleave:_onMouse" tabIndex="0" role="separator"><div class="dijitSplitterThumb"></div></div>',
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constructor: function(){
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this._handlers = [];
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},
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postMixInProperties: function(){
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this.inherited(arguments);
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this.horizontal = /top|bottom/.test(this.region);
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this._factor = /top|left/.test(this.region) ? 1 : -1;
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this._cookieName = this.container.id + "_" + this.region;
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},
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buildRendering: function(){
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this.inherited(arguments);
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domClass.add(this.domNode, "dijitSplitter" + (this.horizontal ? "H" : "V"));
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if(this.container.persist){
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// restore old size
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var persistSize = cookie(this._cookieName);
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if(persistSize){
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this.child.domNode.style[this.horizontal ? "height" : "width"] = persistSize;
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}
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}
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},
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_computeMaxSize: function(){
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// summary:
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// Return the maximum size that my corresponding pane can be set to
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var dim = this.horizontal ? 'h' : 'w',
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childSize = domGeometry.getMarginBox(this.child.domNode)[dim],
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center = array.filter(this.container.getChildren(), function(child){ return child.region == "center";})[0],
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spaceAvailable = domGeometry.getMarginBox(center.domNode)[dim]; // can expand until center is crushed to 0
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return Math.min(this.child.maxSize, childSize + spaceAvailable);
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},
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_startDrag: function(e){
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if(!this.cover){
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this.cover = domConstruct.place("<div class=dijitSplitterCover></div>", this.child.domNode, "after");
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}
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domClass.add(this.cover, "dijitSplitterCoverActive");
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// Safeguard in case the stop event was missed. Shouldn't be necessary if we always get the mouse up.
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if(this.fake){ domConstruct.destroy(this.fake); }
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if(!(this._resize = this.live)){ //TODO: disable live for IE6?
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// create fake splitter to display at old position while we drag
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(this.fake = this.domNode.cloneNode(true)).removeAttribute("id");
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domClass.add(this.domNode, "dijitSplitterShadow");
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domConstruct.place(this.fake, this.domNode, "after");
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}
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domClass.add(this.domNode, "dijitSplitterActive dijitSplitter" + (this.horizontal ? "H" : "V") + "Active");
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if(this.fake){
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domClass.remove(this.fake, "dijitSplitterHover dijitSplitter" + (this.horizontal ? "H" : "V") + "Hover");
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}
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//Performance: load data info local vars for onmousevent function closure
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var factor = this._factor,
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isHorizontal = this.horizontal,
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axis = isHorizontal ? "pageY" : "pageX",
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pageStart = e[axis],
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splitterStyle = this.domNode.style,
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dim = isHorizontal ? 'h' : 'w',
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childStart = domGeometry.getMarginBox(this.child.domNode)[dim],
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max = this._computeMaxSize(),
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min = this.child.minSize || 20,
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region = this.region,
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splitterAttr = region == "top" || region == "bottom" ? "top" : "left", // style attribute of splitter to adjust
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splitterStart = parseInt(splitterStyle[splitterAttr], 10),
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resize = this._resize,
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layoutFunc = lang.hitch(this.container, "_layoutChildren", this.child.id),
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de = this.ownerDocument;
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this._handlers = this._handlers.concat([
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on(de, touch.move, this._drag = function(e, forceResize){
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var delta = e[axis] - pageStart,
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childSize = factor * delta + childStart,
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boundChildSize = Math.max(Math.min(childSize, max), min);
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if(resize || forceResize){
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layoutFunc(boundChildSize);
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}
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// TODO: setting style directly (usually) sets content box size, need to set margin box size
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splitterStyle[splitterAttr] = delta + splitterStart + factor*(boundChildSize - childSize) + "px";
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}),
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on(de, "dragstart", event.stop),
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on(this.ownerDocumentBody, "selectstart", event.stop),
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on(de, touch.release, lang.hitch(this, "_stopDrag"))
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]);
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event.stop(e);
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},
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_onMouse: function(e){
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// summary:
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// Handler for onmouseenter / onmouseleave events
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var o = (e.type == "mouseover" || e.type == "mouseenter");
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domClass.toggle(this.domNode, "dijitSplitterHover", o);
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domClass.toggle(this.domNode, "dijitSplitter" + (this.horizontal ? "H" : "V") + "Hover", o);
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},
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_stopDrag: function(e){
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try{
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if(this.cover){
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domClass.remove(this.cover, "dijitSplitterCoverActive");
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}
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if(this.fake){ domConstruct.destroy(this.fake); }
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domClass.remove(this.domNode, "dijitSplitterActive dijitSplitter"
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+ (this.horizontal ? "H" : "V") + "Active dijitSplitterShadow");
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this._drag(e); //TODO: redundant with onmousemove?
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this._drag(e, true);
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}finally{
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this._cleanupHandlers();
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delete this._drag;
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}
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if(this.container.persist){
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cookie(this._cookieName, this.child.domNode.style[this.horizontal ? "height" : "width"], {expires:365});
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}
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},
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_cleanupHandlers: function(){
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var h;
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while(h = this._handlers.pop()){ h.remove(); }
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},
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_onKeyPress: function(/*Event*/ e){
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// should we apply typematic to this?
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this._resize = true;
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var horizontal = this.horizontal;
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var tick = 1;
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switch(e.charOrCode){
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case horizontal ? keys.UP_ARROW : keys.LEFT_ARROW:
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tick *= -1;
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// break;
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case horizontal ? keys.DOWN_ARROW : keys.RIGHT_ARROW:
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break;
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default:
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// this.inherited(arguments);
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return;
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}
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var childSize = domGeometry.getMarginSize(this.child.domNode)[ horizontal ? 'h' : 'w' ] + this._factor * tick;
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this.container._layoutChildren(this.child.id, Math.max(Math.min(childSize, this._computeMaxSize()), this.child.minSize));
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event.stop(e);
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},
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destroy: function(){
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this._cleanupHandlers();
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delete this.child;
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delete this.container;
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delete this.cover;
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delete this.fake;
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this.inherited(arguments);
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}
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});
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var _Gutter = declare("dijit.layout._Gutter", [_Widget, _TemplatedMixin],
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{
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// summary:
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// Just a spacer div to separate side pane from center pane.
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// Basically a trick to lookup the gutter/splitter width from the theme.
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// description:
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// Instantiated by `dijit/layout/BorderContainer`. Users should not
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// create directly.
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// tags:
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// private
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templateString: '<div class="dijitGutter" role="presentation"></div>',
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postMixInProperties: function(){
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this.inherited(arguments);
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this.horizontal = /top|bottom/.test(this.region);
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},
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buildRendering: function(){
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this.inherited(arguments);
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domClass.add(this.domNode, "dijitGutter" + (this.horizontal ? "H" : "V"));
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}
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});
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var BorderContainer = declare("dijit.layout.BorderContainer", _LayoutWidget, {
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// summary:
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// Provides layout in up to 5 regions, a mandatory center with optional borders along its 4 sides.
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// description:
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// A BorderContainer is a box with a specified size, such as style="width: 500px; height: 500px;",
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// that contains a child widget marked region="center" and optionally children widgets marked
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// region equal to "top", "bottom", "leading", "trailing", "left" or "right".
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// Children along the edges will be laid out according to width or height dimensions and may
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// include optional splitters (splitter="true") to make them resizable by the user. The remaining
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// space is designated for the center region.
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//
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// The outer size must be specified on the BorderContainer node. Width must be specified for the sides
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// and height for the top and bottom, respectively. No dimensions should be specified on the center;
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// it will fill the remaining space. Regions named "leading" and "trailing" may be used just like
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// "left" and "right" except that they will be reversed in right-to-left environments.
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//
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// For complex layouts, multiple children can be specified for a single region. In this case, the
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// layoutPriority flag on the children determines which child is closer to the edge (low layoutPriority)
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// and which child is closer to the center (high layoutPriority). layoutPriority can also be used
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// instead of the design attribute to control layout precedence of horizontal vs. vertical panes.
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//
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// See `BorderContainer.ChildWidgetProperties` for details on the properties that can be set on
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// children of a `BorderContainer`.
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// example:
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// | <div data-dojo-type="dijit/layout/BorderContainer" data-dojo-props="design: 'sidebar', gutters: false"
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// | style="width: 400px; height: 300px;">
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// | <div data-dojo-type="dijit/layout/ContentPane" data-dojo-props="region: 'top'">header text</div>
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// | <div data-dojo-type="dijit/layout/ContentPane" data-dojo-props="region: 'right', splitter: true" style="width: 200px;">table of contents</div>
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// | <div data-dojo-type="dijit/layout/ContentPane" data-dojo-props="region: 'center'">client area</div>
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// | </div>
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// design: String
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// Which design is used for the layout:
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//
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// - "headline" (default) where the top and bottom extend the full width of the container
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// - "sidebar" where the left and right sides extend from top to bottom.
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design: "headline",
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// gutters: [const] Boolean
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// Give each pane a border and margin.
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// Margin determined by domNode.paddingLeft.
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// When false, only resizable panes have a gutter (i.e. draggable splitter) for resizing.
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gutters: true,
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// liveSplitters: [const] Boolean
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// Specifies whether splitters resize as you drag (true) or only upon mouseup (false)
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liveSplitters: true,
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// persist: Boolean
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// Save splitter positions in a cookie.
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persist: false,
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baseClass: "dijitBorderContainer",
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// _splitterClass: Function||String
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// Optional hook to override the default Splitter widget used by BorderContainer
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_splitterClass: _Splitter,
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postMixInProperties: function(){
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// change class name to indicate that BorderContainer is being used purely for
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// layout (like LayoutContainer) rather than for pretty formatting.
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if(!this.gutters){
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this.baseClass += "NoGutter";
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}
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this.inherited(arguments);
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},
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startup: function(){
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if(this._started){ return; }
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array.forEach(this.getChildren(), this._setupChild, this);
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this.inherited(arguments);
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},
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_setupChild: function(/*dijit/_WidgetBase*/ child){
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// Override _LayoutWidget._setupChild().
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var region = child.region;
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if(region){
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this.inherited(arguments);
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domClass.add(child.domNode, this.baseClass+"Pane");
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var ltr = this.isLeftToRight();
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if(region == "leading"){ region = ltr ? "left" : "right"; }
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if(region == "trailing"){ region = ltr ? "right" : "left"; }
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// Create draggable splitter for resizing pane,
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// or alternately if splitter=false but BorderContainer.gutters=true then
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// insert dummy div just for spacing
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if(region != "center" && (child.splitter || this.gutters) && !child._splitterWidget){
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var _Splitter = child.splitter ? this._splitterClass : _Gutter;
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if(lang.isString(_Splitter)){
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_Splitter = lang.getObject(_Splitter); // for back-compat, remove in 2.0
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}
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var splitter = new _Splitter({
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id: child.id + "_splitter",
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container: this,
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child: child,
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region: region,
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live: this.liveSplitters
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});
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splitter.isSplitter = true;
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child._splitterWidget = splitter;
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domConstruct.place(splitter.domNode, child.domNode, "after");
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// Splitters aren't added as Contained children, so we need to call startup explicitly
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splitter.startup();
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}
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child.region = region; // TODO: technically wrong since it overwrites "trailing" with "left" etc.
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}
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},
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layout: function(){
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// Implement _LayoutWidget.layout() virtual method.
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this._layoutChildren();
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},
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addChild: function(/*dijit/_WidgetBase*/ child, /*Integer?*/ insertIndex){
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// Override _LayoutWidget.addChild().
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this.inherited(arguments);
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if(this._started){
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this.layout(); //OPT
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}
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},
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removeChild: function(/*dijit/_WidgetBase*/ child){
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// Override _LayoutWidget.removeChild().
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var region = child.region;
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var splitter = child._splitterWidget;
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if(splitter){
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splitter.destroy();
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delete child._splitterWidget;
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}
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this.inherited(arguments);
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if(this._started){
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this._layoutChildren();
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}
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// Clean up whatever style changes we made to the child pane.
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// Unclear how height and width should be handled.
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domClass.remove(child.domNode, this.baseClass+"Pane");
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domStyle.set(child.domNode, {
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top: "auto",
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bottom: "auto",
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left: "auto",
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right: "auto",
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position: "static"
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});
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domStyle.set(child.domNode, region == "top" || region == "bottom" ? "width" : "height", "auto");
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},
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getChildren: function(){
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// Override _LayoutWidget.getChildren() to only return real children, not the splitters.
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return array.filter(this.inherited(arguments), function(widget){
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return !widget.isSplitter;
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});
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},
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// TODO: remove in 2.0
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getSplitter: function(/*String*/region){
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// summary:
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// Returns the widget responsible for rendering the splitter associated with region
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// tags:
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// deprecated
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return array.filter(this.getChildren(), function(child){
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return child.region == region;
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})[0]._splitterWidget;
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},
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resize: function(newSize, currentSize){
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// Overrides _LayoutWidget.resize().
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// resetting potential padding to 0px to provide support for 100% width/height + padding
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// TODO: this hack doesn't respect the box model and is a temporary fix
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if(!this.cs || !this.pe){
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var node = this.domNode;
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this.cs = domStyle.getComputedStyle(node);
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this.pe = domGeometry.getPadExtents(node, this.cs);
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this.pe.r = domStyle.toPixelValue(node, this.cs.paddingRight);
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this.pe.b = domStyle.toPixelValue(node, this.cs.paddingBottom);
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domStyle.set(node, "padding", "0px");
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}
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this.inherited(arguments);
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},
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_layoutChildren: function(/*String?*/ changedChildId, /*Number?*/ changedChildSize){
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// summary:
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// This is the main routine for setting size/position of each child.
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// description:
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// With no arguments, measures the height of top/bottom panes, the width
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// of left/right panes, and then sizes all panes accordingly.
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//
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// With changedRegion specified (as "left", "top", "bottom", or "right"),
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// it changes that region's width/height to changedRegionSize and
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// then resizes other regions that were affected.
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// changedChildId:
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// Id of the child which should be resized because splitter was dragged.
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// changedChildSize:
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// The new width/height (in pixels) to make specified child
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if(!this._borderBox || !this._borderBox.h){
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// We are currently hidden, or we haven't been sized by our parent yet.
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// Abort. Someone will resize us later.
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return;
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}
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// Generate list of wrappers of my children in the order that I want layoutChildren()
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// to process them (i.e. from the outside to the inside)
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var wrappers = array.map(this.getChildren(), function(child, idx){
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return {
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pane: child,
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weight: [
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child.region == "center" ? Infinity : 0,
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child.layoutPriority,
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(this.design == "sidebar" ? 1 : -1) * (/top|bottom/.test(child.region) ? 1 : -1),
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idx
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]
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};
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}, this);
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wrappers.sort(function(a, b){
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var aw = a.weight, bw = b.weight;
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for(var i=0; i<aw.length; i++){
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if(aw[i] != bw[i]){
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return aw[i] - bw[i];
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}
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}
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return 0;
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});
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// Make new list, combining the externally specified children with splitters and gutters
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var childrenAndSplitters = [];
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array.forEach(wrappers, function(wrapper){
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var pane = wrapper.pane;
|
|
childrenAndSplitters.push(pane);
|
|
if(pane._splitterWidget){
|
|
childrenAndSplitters.push(pane._splitterWidget);
|
|
}
|
|
});
|
|
|
|
// Compute the box in which to lay out my children
|
|
var dim = {
|
|
l: this.pe.l,
|
|
t: this.pe.t,
|
|
w: this._borderBox.w - this.pe.w,
|
|
h: this._borderBox.h - this.pe.h
|
|
};
|
|
|
|
// Layout the children, possibly changing size due to a splitter drag
|
|
layoutUtils.layoutChildren(this.domNode, dim, childrenAndSplitters,
|
|
changedChildId, changedChildSize);
|
|
},
|
|
|
|
destroyRecursive: function(){
|
|
// Destroy splitters first, while getChildren() still works
|
|
array.forEach(this.getChildren(), function(child){
|
|
var splitter = child._splitterWidget;
|
|
if(splitter){
|
|
splitter.destroy();
|
|
}
|
|
delete child._splitterWidget;
|
|
});
|
|
|
|
// Then destroy the real children, and myself
|
|
this.inherited(arguments);
|
|
}
|
|
});
|
|
|
|
BorderContainer.ChildWidgetProperties = {
|
|
// summary:
|
|
// These properties can be specified for the children of a BorderContainer.
|
|
|
|
// region: [const] String
|
|
// Values: "top", "bottom", "leading", "trailing", "left", "right", "center".
|
|
// See the `dijit/layout/BorderContainer` description for details.
|
|
region: '',
|
|
|
|
// layoutPriority: [const] Number
|
|
// Children with a higher layoutPriority will be placed closer to the BorderContainer center,
|
|
// between children with a lower layoutPriority.
|
|
layoutPriority: 0,
|
|
|
|
// splitter: [const] Boolean
|
|
// Parameter for children where region != "center".
|
|
// If true, enables user to resize the widget by putting a draggable splitter between
|
|
// this widget and the region=center widget.
|
|
splitter: false,
|
|
|
|
// minSize: [const] Number
|
|
// Specifies a minimum size (in pixels) for this widget when resized by a splitter.
|
|
minSize: 0,
|
|
|
|
// maxSize: [const] Number
|
|
// Specifies a maximum size (in pixels) for this widget when resized by a splitter.
|
|
maxSize: Infinity
|
|
};
|
|
|
|
// Since any widget can be specified as a LayoutContainer child, mix it
|
|
// into the base widget class. (This is a hack, but it's effective.)
|
|
// This is for the benefit of the parser. Remove for 2.0. Also, hide from doc viewer.
|
|
lang.extend(_WidgetBase, /*===== {} || =====*/ BorderContainer.ChildWidgetProperties);
|
|
|
|
// For monkey patching
|
|
BorderContainer._Splitter = _Splitter;
|
|
BorderContainer._Gutter = _Gutter;
|
|
|
|
return BorderContainer;
|
|
});
|