e44a7e37b6
git-svn-id: https://semanticscuttle.svn.sourceforge.net/svnroot/semanticscuttle/trunk@151 b3834d28-1941-0410-a4f8-b48e95affb8f
708 lines
20 KiB
JavaScript
708 lines
20 KiB
JavaScript
if(!dojo._hasResource["dojox.widget.FisheyeList"]){ //_hasResource checks added by build. Do not use _hasResource directly in your code.
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dojo._hasResource["dojox.widget.FisheyeList"] = true;
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dojo.provide("dojox.widget.FisheyeList");
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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.declare("dojox.widget.FisheyeList", [dijit._Widget, dijit._Templated, dijit._Container], {
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// summary:
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// Menu similar to the fish eye menu on the Mac OS
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// example:
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// | <div dojoType="FisheyeList"
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// | itemWidth="40" itemHeight="40"
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// | itemMaxWidth="150" itemMaxHeight="150"
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// | orientation="horizontal"
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// | effectUnits="2"
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// | itemPadding="10"
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// | attachEdge="center"
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// | labelEdge="bottom">
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// |
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// | <div dojoType="FisheyeListItem"
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// | id="item1"
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// | onclick="alert('click on' + this.label + '(from widget id ' + this.widgetId + ')!');"
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// | label="Item 1"
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// | iconSrc="images/fisheye_1.png">
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// | </div>
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// | ...
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// | </div>
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//
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constructor: function(){
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//
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// TODO
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// fix really long labels in vertical mode
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//
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this.pos = {'x': -1, 'y': -1}; // current cursor position, relative to the grid
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// for conservative trigger mode, when triggered, timerScale is gradually increased from 0 to 1
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this.timerScale = 1.0;
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},
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EDGE: {
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CENTER: 0,
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LEFT: 1,
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RIGHT: 2,
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TOP: 3,
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BOTTOM: 4
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},
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templateString: '<div class="dojoxFisheyeListBar" dojoAttachPoint="containerNode"></div>',
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snarfChildDomOutput: true,
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// itemWidth: Integer
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// width of menu item (in pixels) in it's dormant state (when the mouse is far away)
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itemWidth: 40,
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// itemHeight: Integer
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// height of menu item (in pixels) in it's dormant state (when the mouse is far away)
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itemHeight: 40,
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// itemMaxWidth: Integer
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// width of menu item (in pixels) in it's fully enlarged state (when the mouse is directly over it)
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itemMaxWidth: 150,
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// itemMaxHeight: Integer
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// height of menu item (in pixels) in it's fully enlarged state (when the mouse is directly over it)
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itemMaxHeight: 150,
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imgNode: null,
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// orientation: String
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// orientation of the menu, either "horizontal" or "vertical"
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orientation: 'horizontal',
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// isFixed: Boolean
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// toggle to enable additional listener (window scroll) if FisheyeList is in a fixed postion
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isFixed: false,
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// conservativeTrigger: Boolean
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// if true, don't start enlarging menu items until mouse is over an image;
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// if false, start enlarging menu items as the mouse moves near them.
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conservativeTrigger: false,
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// effectUnits: Number
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// controls how much reaction the menu makes, relative to the distance of the mouse from the menu
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effectUnits: 2,
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// itemPadding: Integer
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// padding (in pixels) betweeen each menu item
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itemPadding: 10,
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// attachEdge: String
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// controls the border that the menu items don't expand past;
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// for example, if set to "top", then the menu items will drop downwards as they expand.
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// values
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// "center", "left", "right", "top", "bottom".
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attachEdge: 'center',
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// labelEdge: String
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// controls were the labels show up in relation to the menu item icons
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// values
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// "center", "left", "right", "top", "bottom".
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labelEdge: 'bottom',
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postCreate: function(){
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var e = this.EDGE;
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dojo.setSelectable(this.domNode, false);
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var isHorizontal = this.isHorizontal = (this.orientation == 'horizontal');
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this.selectedNode = -1;
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this.isOver = false;
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this.hitX1 = -1;
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this.hitY1 = -1;
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this.hitX2 = -1;
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this.hitY2 = -1;
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//
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// only some edges make sense...
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//
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this.anchorEdge = this._toEdge(this.attachEdge, e.CENTER);
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this.labelEdge = this._toEdge(this.labelEdge, e.TOP);
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if(this.labelEdge == e.CENTER){ this.labelEdge = e.TOP; }
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if(isHorizontal){
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if(this.anchorEdge == e.LEFT){ this.anchorEdge = e.CENTER; }
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if(this.anchorEdge == e.RIGHT){ this.anchorEdge = e.CENTER; }
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if(this.labelEdge == e.LEFT){ this.labelEdge = e.TOP; }
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if(this.labelEdge == e.RIGHT){ this.labelEdge = e.TOP; }
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}else{
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if(this.anchorEdge == e.TOP){ this.anchorEdge = e.CENTER; }
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if(this.anchorEdge == e.BOTTOM){ this.anchorEdge = e.CENTER; }
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if(this.labelEdge == e.TOP){ this.labelEdge = e.LEFT; }
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if(this.labelEdge == e.BOTTOM){ this.labelEdge = e.LEFT; }
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}
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//
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// figure out the proximity size
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//
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var effectUnits = this.effectUnits;
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this.proximityLeft = this.itemWidth * (effectUnits - 0.5);
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this.proximityRight = this.itemWidth * (effectUnits - 0.5);
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this.proximityTop = this.itemHeight * (effectUnits - 0.5);
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this.proximityBottom = this.itemHeight * (effectUnits - 0.5);
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if(this.anchorEdge == e.LEFT){
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this.proximityLeft = 0;
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}
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if(this.anchorEdge == e.RIGHT){
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this.proximityRight = 0;
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}
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if(this.anchorEdge == e.TOP){
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this.proximityTop = 0;
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}
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if(this.anchorEdge == e.BOTTOM){
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this.proximityBottom = 0;
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}
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if(this.anchorEdge == e.CENTER){
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this.proximityLeft /= 2;
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this.proximityRight /= 2;
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this.proximityTop /= 2;
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this.proximityBottom /= 2;
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}
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},
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startup: function(){
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// summary: create our connections and setup our FisheyeList
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this.children = this.getChildren();
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//original postCreate() --tk
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this._initializePositioning();
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//
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// in liberal trigger mode, activate menu whenever mouse is close
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//
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if(!this.conservativeTrigger){
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this._onMouseMoveHandle = dojo.connect(document.documentElement, "onmousemove", this, "_onMouseMove");
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}
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if (this.isFixed){
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this._onScrollHandle = dojo.connect(document,"onscroll",this,"_onScroll");
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}
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// Deactivate the menu if mouse is moved off screen (doesn't work for FF?)
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this._onMouseOutHandle = dojo.connect(document.documentElement, "onmouseout", this, "_onBodyOut");
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this._addChildHandle = dojo.connect(this, "addChild", this, "_initializePositioning");
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this._onResizeHandle = dojo.connect(window,"onresize", this, "_initializePositioning");
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},
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_initializePositioning: function(){
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this.itemCount = this.children.length;
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this.barWidth = (this.isHorizontal ? this.itemCount : 1) * this.itemWidth;
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this.barHeight = (this.isHorizontal ? 1 : this.itemCount) * this.itemHeight;
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this.totalWidth = this.proximityLeft + this.proximityRight + this.barWidth;
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this.totalHeight = this.proximityTop + this.proximityBottom + this.barHeight;
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//
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// calculate effect ranges for each item
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//
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for(var i=0; i<this.children.length; i++){
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this.children[i].posX = this.itemWidth * (this.isHorizontal ? i : 0);
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this.children[i].posY = this.itemHeight * (this.isHorizontal ? 0 : i);
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this.children[i].cenX = this.children[i].posX + (this.itemWidth / 2);
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this.children[i].cenY = this.children[i].posY + (this.itemHeight / 2);
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var isz = this.isHorizontal ? this.itemWidth : this.itemHeight;
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var r = this.effectUnits * isz;
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var c = this.isHorizontal ? this.children[i].cenX : this.children[i].cenY;
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var lhs = this.isHorizontal ? this.proximityLeft : this.proximityTop;
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var rhs = this.isHorizontal ? this.proximityRight : this.proximityBottom;
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var siz = this.isHorizontal ? this.barWidth : this.barHeight;
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var range_lhs = r;
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var range_rhs = r;
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if(range_lhs > c+lhs){ range_lhs = c+lhs; }
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if(range_rhs > (siz-c+rhs)){ range_rhs = siz-c+rhs; }
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this.children[i].effectRangeLeft = range_lhs / isz;
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this.children[i].effectRangeRght = range_rhs / isz;
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//dojo.debug('effect range for '+i+' is '+range_lhs+'/'+range_rhs);
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}
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//
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// create the bar
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//
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this.domNode.style.width = this.barWidth + 'px';
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this.domNode.style.height = this.barHeight + 'px';
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//
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// position the items
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//
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for(var i=0; i<this.children.length; i++){
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var itm = this.children[i];
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var elm = itm.domNode;
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elm.style.left = itm.posX + 'px';
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elm.style.top = itm.posY + 'px';
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elm.style.width = this.itemWidth + 'px';
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elm.style.height = this.itemHeight + 'px';
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itm.imgNode.style.left = this.itemPadding+'%';
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itm.imgNode.style.top = this.itemPadding+'%';
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itm.imgNode.style.width = (100 - 2 * this.itemPadding) + '%';
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itm.imgNode.style.height = (100 - 2 * this.itemPadding) + '%';
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}
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//
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// calc the grid
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//
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this._calcHitGrid();
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},
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_overElement: function(/* DomNode|String */node, /* Event */e){
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// summary:
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// Returns whether the mouse is over the passed element.
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// Node: Must must be display:block (ie, not a <span>)
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node = dojo.byId(node);
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var mouse = {x: e.pageX, y: e.pageY};
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var bb = dojo._getBorderBox(node);
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var absolute = dojo.coords(node, true);
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var top = absolute.y;
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var bottom = top + bb.h;
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var left = absolute.x;
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var right = left + bb.w;
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return (mouse.x >= left
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&& mouse.x <= right
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&& mouse.y >= top
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&& mouse.y <= bottom
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); // boolean
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},
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_onBodyOut: function(/*Event*/ e){
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// clicking over an object inside of body causes this event to fire; ignore that case
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if( this._overElement(dojo.body(), e) ){
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return;
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}
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this._setDormant(e);
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},
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_setDormant: function(/*Event*/ e){
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// summary: called when mouse moves out of menu's range
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if(!this.isOver){ return; } // already dormant?
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this.isOver = false;
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if(this.conservativeTrigger){
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// user can't re-trigger the menu expansion
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// until he mouses over a icon again
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dojo.disconnect(this._onMouseMoveHandle);
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}
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this._onGridMouseMove(-1, -1);
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},
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_setActive: function(/*Event*/ e){
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// summary: called when mouse is moved into menu's range
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if(this.isOver){ return; } // already activated?
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this.isOver = true;
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if(this.conservativeTrigger){
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// switch event handlers so that we handle mouse events from anywhere near
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// the menu
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this._onMouseMoveHandle = dojo.connect(document.documentElement, "onmousemove", this, "_onMouseMove");
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this.timerScale=0.0;
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// call mouse handler to do some initial necessary calculations/positioning
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this._onMouseMove(e);
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// slowly expand the icon size so it isn't jumpy
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this._expandSlowly();
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}
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},
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_onMouseMove: function(/*Event*/ e){
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// summary: called when mouse is moved
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if( (e.pageX >= this.hitX1) && (e.pageX <= this.hitX2) &&
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(e.pageY >= this.hitY1) && (e.pageY <= this.hitY2) ){
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if(!this.isOver){
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this._setActive(e);
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}
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this._onGridMouseMove(e.pageX-this.hitX1, e.pageY-this.hitY1);
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}else{
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if(this.isOver){
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this._setDormant(e);
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}
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}
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},
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_onScroll: function(){
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this._calcHitGrid();
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},
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onResized: function(){
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this._calcHitGrid();
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},
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_onGridMouseMove: function(x, y){
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// summary: called when mouse is moved in the vicinity of the menu
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this.pos = {x:x, y:y};
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this._paint();
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},
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_paint: function(){
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var x=this.pos.x;
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var y=this.pos.y;
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if(this.itemCount <= 0){ return; }
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//
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// figure out our main index
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//
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var pos = this.isHorizontal ? x : y;
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var prx = this.isHorizontal ? this.proximityLeft : this.proximityTop;
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var siz = this.isHorizontal ? this.itemWidth : this.itemHeight;
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var sim = this.isHorizontal ?
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(1.0-this.timerScale)*this.itemWidth + this.timerScale*this.itemMaxWidth :
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(1.0-this.timerScale)*this.itemHeight + this.timerScale*this.itemMaxHeight ;
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var cen = ((pos - prx) / siz) - 0.5;
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var max_off_cen = (sim / siz) - 0.5;
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if(max_off_cen > this.effectUnits){ max_off_cen = this.effectUnits; }
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//
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// figure out our off-axis weighting
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//
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var off_weight = 0;
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if(this.anchorEdge == this.EDGE.BOTTOM){
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var cen2 = (y - this.proximityTop) / this.itemHeight;
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off_weight = (cen2 > 0.5) ? 1 : y / (this.proximityTop + (this.itemHeight / 2));
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}
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if(this.anchorEdge == this.EDGE.TOP){
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var cen2 = (y - this.proximityTop) / this.itemHeight;
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off_weight = (cen2 < 0.5) ? 1 : (this.totalHeight - y) / (this.proximityBottom + (this.itemHeight / 2));
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}
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if(this.anchorEdge == this.EDGE.RIGHT){
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var cen2 = (x - this.proximityLeft) / this.itemWidth;
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off_weight = (cen2 > 0.5) ? 1 : x / (this.proximityLeft + (this.itemWidth / 2));
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}
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if(this.anchorEdge == this.EDGE.LEFT){
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var cen2 = (x - this.proximityLeft) / this.itemWidth;
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off_weight = (cen2 < 0.5) ? 1 : (this.totalWidth - x) / (this.proximityRight + (this.itemWidth / 2));
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}
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if(this.anchorEdge == this.EDGE.CENTER){
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if(this.isHorizontal){
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off_weight = y / (this.totalHeight);
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}else{
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off_weight = x / (this.totalWidth);
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}
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if(off_weight > 0.5){
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off_weight = 1 - off_weight;
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}
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off_weight *= 2;
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}
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//
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// set the sizes
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//
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for(var i=0; i<this.itemCount; i++){
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var weight = this._weighAt(cen, i);
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if(weight < 0){weight = 0;}
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this._setItemSize(i, weight * off_weight);
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}
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//
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// set the positions
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//
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var main_p = Math.round(cen);
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var offset = 0;
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if(cen < 0){
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main_p = 0;
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}else if(cen > this.itemCount - 1){
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main_p = this.itemCount -1;
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}else{
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offset = (cen - main_p) * ((this.isHorizontal ? this.itemWidth : this.itemHeight) - this.children[main_p].sizeMain);
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}
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this._positionElementsFrom(main_p, offset);
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},
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_weighAt: function(/*Integer*/ cen, /*Integer*/ i){
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var dist = Math.abs(cen - i);
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var limit = ((cen - i) > 0) ? this.children[i].effectRangeRght : this.children[i].effectRangeLeft;
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return (dist > limit) ? 0 : (1 - dist / limit); // Integer
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},
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_setItemSize: function(p, scale){
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scale *= this.timerScale;
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var w = Math.round(this.itemWidth + ((this.itemMaxWidth - this.itemWidth ) * scale));
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var h = Math.round(this.itemHeight + ((this.itemMaxHeight - this.itemHeight) * scale));
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if(this.isHorizontal){
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this.children[p].sizeW = w;
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this.children[p].sizeH = h;
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this.children[p].sizeMain = w;
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this.children[p].sizeOff = h;
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var y = 0;
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if(this.anchorEdge == this.EDGE.TOP){
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y = (this.children[p].cenY - (this.itemHeight / 2));
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}else if(this.anchorEdge == this.EDGE.BOTTOM){
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y = (this.children[p].cenY - (h - (this.itemHeight / 2)));
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}else{
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y = (this.children[p].cenY - (h / 2));
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}
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this.children[p].usualX = Math.round(this.children[p].cenX - (w / 2));
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this.children[p].domNode.style.top = y + 'px';
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this.children[p].domNode.style.left = this.children[p].usualX + 'px';
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}else{
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this.children[p].sizeW = w;
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this.children[p].sizeH = h;
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this.children[p].sizeOff = w;
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this.children[p].sizeMain = h;
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var x = 0;
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if(this.anchorEdge == this.EDGE.LEFT){
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x = this.children[p].cenX - (this.itemWidth / 2);
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}else if (this.anchorEdge == this.EDGE.RIGHT){
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x = this.children[p].cenX - (w - (this.itemWidth / 2));
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}else{
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x = this.children[p].cenX - (w / 2);
|
|
}
|
|
|
|
this.children[p].domNode.style.left = x + 'px';
|
|
this.children[p].usualY = Math.round(this.children[p].cenY - (h / 2));
|
|
|
|
this.children[p].domNode.style.top = this.children[p].usualY + 'px';
|
|
}
|
|
|
|
this.children[p].domNode.style.width = w + 'px';
|
|
this.children[p].domNode.style.height = h + 'px';
|
|
|
|
if(this.children[p].svgNode){
|
|
this.children[p].svgNode.setSize(w, h);
|
|
}
|
|
},
|
|
|
|
_positionElementsFrom: function(p, offset){
|
|
var pos = 0;
|
|
|
|
if(this.isHorizontal){
|
|
pos = Math.round(this.children[p].usualX + offset);
|
|
this.children[p].domNode.style.left = pos + 'px';
|
|
}else{
|
|
pos = Math.round(this.children[p].usualY + offset);
|
|
this.children[p].domNode.style.top = pos + 'px';
|
|
}
|
|
this._positionLabel(this.children[p]);
|
|
|
|
// position before
|
|
var bpos = pos;
|
|
for(var i=p-1; i>=0; i--){
|
|
bpos -= this.children[i].sizeMain;
|
|
|
|
if (this.isHorizontal){
|
|
this.children[i].domNode.style.left = bpos + 'px';
|
|
}else{
|
|
this.children[i].domNode.style.top = bpos + 'px';
|
|
}
|
|
this._positionLabel(this.children[i]);
|
|
}
|
|
|
|
// position after
|
|
var apos = pos;
|
|
for(var i=p+1; i<this.itemCount; i++){
|
|
apos += this.children[i-1].sizeMain;
|
|
if(this.isHorizontal){
|
|
this.children[i].domNode.style.left = apos + 'px';
|
|
}else{
|
|
this.children[i].domNode.style.top = apos + 'px';
|
|
}
|
|
this._positionLabel(this.children[i]);
|
|
}
|
|
|
|
},
|
|
|
|
_positionLabel: function(itm){
|
|
var x = 0;
|
|
var y = 0;
|
|
|
|
var mb = dojo.marginBox(itm.lblNode);
|
|
|
|
if(this.labelEdge == this.EDGE.TOP){
|
|
x = Math.round((itm.sizeW / 2) - (mb.w / 2));
|
|
y = -mb.h;
|
|
}
|
|
|
|
if(this.labelEdge == this.EDGE.BOTTOM){
|
|
x = Math.round((itm.sizeW / 2) - (mb.w / 2));
|
|
y = itm.sizeH;
|
|
}
|
|
|
|
if(this.labelEdge == this.EDGE.LEFT){
|
|
x = -mb.w;
|
|
y = Math.round((itm.sizeH / 2) - (mb.h / 2));
|
|
}
|
|
|
|
if(this.labelEdge == this.EDGE.RIGHT){
|
|
x = itm.sizeW;
|
|
y = Math.round((itm.sizeH / 2) - (mb.h / 2));
|
|
}
|
|
|
|
itm.lblNode.style.left = x + 'px';
|
|
itm.lblNode.style.top = y + 'px';
|
|
},
|
|
|
|
_calcHitGrid: function(){
|
|
|
|
var pos = dojo.coords(this.domNode, true);
|
|
|
|
this.hitX1 = pos.x - this.proximityLeft;
|
|
this.hitY1 = pos.y - this.proximityTop;
|
|
this.hitX2 = this.hitX1 + this.totalWidth;
|
|
this.hitY2 = this.hitY1 + this.totalHeight;
|
|
|
|
},
|
|
|
|
_toEdge: function(inp, def){
|
|
return this.EDGE[inp.toUpperCase()] || def;
|
|
},
|
|
|
|
_expandSlowly: function(){
|
|
// summary: slowly expand the image to user specified max size
|
|
if(!this.isOver){ return; }
|
|
this.timerScale += 0.2;
|
|
this._paint();
|
|
if(this.timerScale<1.0){
|
|
setTimeout(dojo.hitch(this, "_expandSlowly"), 10);
|
|
}
|
|
},
|
|
|
|
destroyRecursive: function(){
|
|
// need to disconnect when we destroy
|
|
dojo.disconnect(this._onMouseOutHandle);
|
|
dojo.disconnect(this._onMouseMoveHandle);
|
|
dojo.disconnect(this._addChildHandle);
|
|
if (this.isFixed) { dojo.disconnect(this._onScrollHandle); }
|
|
dojo.disconnect(this._onResizeHandle);
|
|
this.inherited("destroyRecursive",arguments);
|
|
}
|
|
});
|
|
|
|
dojo.declare("dojox.widget.FisheyeListItem", [dijit._Widget, dijit._Templated, dijit._Contained], {
|
|
/*
|
|
* summary
|
|
* Menu item inside of a FisheyeList.
|
|
* See FisheyeList documentation for details on usage.
|
|
*/
|
|
|
|
// iconSrc: String
|
|
// pathname to image file (jpg, gif, png, etc.) of icon for this menu item
|
|
iconSrc: "",
|
|
|
|
// label: String
|
|
// label to print next to the icon, when it is moused-over
|
|
label: "",
|
|
|
|
// id: String
|
|
// will be set to the id of the orginal div element
|
|
id: "",
|
|
|
|
_blankImgPath: dojo.moduleUrl("dojo", "resources/blank.gif"),
|
|
|
|
templateString:
|
|
'<div class="dojoxFisheyeListItem">' +
|
|
' <img class="dojoxFisheyeListItemImage" dojoAttachPoint="imgNode" dojoAttachEvent="onmouseover:onMouseOver,onmouseout:onMouseOut,onclick:onClick">' +
|
|
' <div class="dojoxFisheyeListItemLabel" dojoAttachPoint="lblNode"></div>' +
|
|
'</div>',
|
|
|
|
_isNode: function(/* object */wh){
|
|
// summary:
|
|
// checks to see if wh is actually a node.
|
|
if(typeof Element == "function") {
|
|
try{
|
|
return wh instanceof Element; // boolean
|
|
}catch(e){}
|
|
}else{
|
|
// best-guess
|
|
return wh && !isNaN(wh.nodeType); // boolean
|
|
}
|
|
},
|
|
|
|
_hasParent: function(/*Node*/node){
|
|
// summary:
|
|
// returns whether or not node is a child of another node.
|
|
return Boolean(node && node.parentNode && this._isNode(node.parentNode)); // boolean
|
|
},
|
|
|
|
postCreate: function() {
|
|
|
|
// set image
|
|
if((this.iconSrc.toLowerCase().substring(this.iconSrc.length-4)==".png")&&(dojo.isIE)&&(dojo.isIE<7)){
|
|
/* we set the id of the new fisheyeListItem to the id of the div defined in the HTML */
|
|
if(this._hasParent(this.imgNode) && this.id != ""){
|
|
var parent = this.imgNode.parentNode;
|
|
parent.setAttribute("id", this.id);
|
|
}
|
|
this.imgNode.style.filter = "progid:DXImageTransform.Microsoft.AlphaImageLoader(src='"+this.iconSrc+"', sizingMethod='scale')";
|
|
this.imgNode.src = this._blankImgPath.toString();
|
|
}else{
|
|
if(this._hasParent(this.imgNode) && this.id != ""){
|
|
var parent = this.imgNode.parentNode;
|
|
parent.setAttribute("id", this.id);
|
|
}
|
|
this.imgNode.src = this.iconSrc;
|
|
}
|
|
|
|
// Label
|
|
if(this.lblNode){
|
|
this.lblNode.appendChild(document.createTextNode(this.label));
|
|
}
|
|
dojo.setSelectable(this.domNode, false);
|
|
this.startup();
|
|
},
|
|
|
|
startup: function(){
|
|
this.parent = this.getParent();
|
|
},
|
|
|
|
onMouseOver: function(/*Event*/ e){
|
|
// summary: callback when user moves mouse over this menu item
|
|
// in conservative mode, don't activate the menu until user mouses over an icon
|
|
if(!this.parent.isOver){
|
|
this.parent._setActive(e);
|
|
}
|
|
if(this.label != "" ){
|
|
dojo.addClass(this.lblNode, "dojoxFishSelected");
|
|
this.parent._positionLabel(this);
|
|
}
|
|
},
|
|
|
|
onMouseOut: function(/*Event*/ e){
|
|
// summary: callback when user moves mouse off of this menu item
|
|
dojo.removeClass(this.lblNode, "dojoxFishSelected");
|
|
},
|
|
|
|
onClick: function(/*Event*/ e){
|
|
// summary: user overridable callback when user clicks this menu item
|
|
}
|
|
});
|
|
|
|
}
|