source: Dev/trunk/src/client/dojo/robot.js @ 531

define([
        "./_base/array",
        "./dom",
        "./dom-geometry",
        "./_base/kernel",
        "./_base/lang",
        "./_base/window",
        "doh/_browserRunner",
        "doh/robot",
        "./window"
], function(array, dom, geom, kernel, lang, win, doh, robot, winUtils){

kernel.experimental("dojo.robot");

// users who use doh+dojo get the added convenience of robot.mouseMoveAt(),
// instead of computing the absolute coordinates of their elements themselves
lang.mixin(robot, {

        _resolveNode: function(/*String||DOMNode||Function*/ n){
                if(typeof n == "function"){
                        // if the user passed a function returning a node, evaluate it
                        n = n();
                }
                return n ? dom.byId(n) : null;
        },

        _scrollIntoView: function(/*Node*/ n){
                // scrolls the passed node into view, scrolling all ancestor frames/windows as well.
                // Assumes parent iframes can be made fully visible given the current browser window size
                var p = null;
                array.forEach(robot._getWindowChain(n), function(w){
                        // get the position of the node wrt its parent window
                        // if it is a parent frame, its padding and border extents will get added in
                        var p2 = geom.position(n, false),
                                b = geom.getPadBorderExtents(n),
                                oldp = null;
                        // if p2 is the position of the original passed node, store the position away as p
                        // otherwise, node is actually an iframe. in this case, add the iframe's position wrt its parent window and also the iframe's padding and border extents
                        if(!p){
                                p = p2;
                        }else{
                                oldp = p;
                                p = {x: p.x+p2.x+b.l,
                                        y: p.y+p2.y+b.t,
                                        w: p.w,
                                        h: p.h};

                        }
                        // scroll the parent window so that the node translated into the parent window's coordinate space is in view
                        winUtils.scrollIntoView(n,p);
                        // adjust position for the new scroll offsets
                        p2 = geom.position(n, false);
                        if(!oldp){
                                p = p2;
                        }else{
                                p = {x: oldp.x+p2.x+b.l,
                                        y: oldp.y+p2.y+b.t,
                                        w: p.w,
                                        h: p.h};
                        }
                        // get the parent iframe so it can be scrolled too
                        n = w.frameElement;
                });
        },

        _position: function(/*Node*/ n){
                // Returns the geom.position of the passed node wrt the passed window's viewport,
                // following any parent iframes containing the node and clipping the node to each iframe.
                // precondition: _scrollIntoView already called
                var p = null, max = Math.max, min = Math.min;
                // p: the returned position of the node
                array.forEach(robot._getWindowChain(n), function(w){
                        // get the position of the node wrt its parent window
                        // if it is a parent frame, its padding and border extents will get added in
                        var p2 = geom.position(n, false), b = geom.getPadBorderExtents(n);
                        // if p2 is the position of the original passed node, store the position away as p
                        // otherwise, node is actually an iframe. in this case, add the iframe's position wrt its parent window and also the iframe's padding and border extents
                        if(!p){
                                p = p2;
                        }else{
                                var view = winUtils.getBox(n.contentWindow.document);
                                p2.r = p2.x+view.w;
                                p2.b = p2.y+view.h;
                                p = {x: max(p.x+p2.x,p2.x)+b.l, // clip left edge of node wrt the iframe
                                        y: max(p.y+p2.y,p2.y)+b.t,      // top edge
                                        r: min(p.x+p2.x+p.w,p2.r)+b.l,  // right edge (to compute width)
                                        b: min(p.y+p2.y+p.h,p2.b)+b.t}; // bottom edge (to compute height)
                                // save a few bytes by computing width and height from r and b
                                p.w = p.r-p.x;
                                p.h = p.b-p.y;
                        }
                        // the new node is now the old node's parent iframe
                        n=w.frameElement;
                });
                return p;
        },

        _getWindowChain : function(/*Node*/ n){
                // Returns an array of windows starting from the passed node's parent window and ending at dojo's window
                var cW = winUtils.get(n.ownerDocument);
                var arr = [cW];
                var f = cW.frameElement;
                return (cW == win.global || !f) ? arr : arr.concat(robot._getWindowChain(f));
        },

        scrollIntoView : function(/*String||DOMNode||Function*/ node, /*Number, optional*/ delay){
                // summary:
                //              Scroll the passed node into view, if it is not.
                // node:
                //              The id of the node, or the node itself, to move the mouse to.
                //              If you pass an id or a function that returns a node, the node will not be evaluated until the movement executes.
                //              This is useful if you need to move the mouse to an node that is not yet present.
                // delay:
                //              Delay, in milliseconds, to wait before firing.
                //              The delay is a delta with respect to the previous automation call.

                robot.sequence(function(){
                        robot._scrollIntoView(robot._resolveNode(node));
                }, delay);
        },

        mouseMoveAt : function(/*String||DOMNode||Function*/ node, /*Integer, optional*/ delay, /*Integer, optional*/ duration, /*Number, optional*/ offsetX, /*Number, optional*/ offsetY){
                // summary:
                //              Moves the mouse over the specified node at the specified relative x,y offset.
                // description:
                //              Moves the mouse over the specified node at the specified relative x,y offset.
                //              If you do not specify an offset, mouseMove will default to move to the middle of the node.
                //              Example: to move the mouse over a ComboBox's down arrow node, call doh.mouseMoveAt(dijit.byId('setvaluetest').downArrowNode);
                // node:
                //              The id of the node, or the node itself, to move the mouse to.
                //              If you pass an id or a function that returns a node, the node will not be evaluated until the movement executes.
                //              This is useful if you need to move the mouse to an node that is not yet present.
                // delay:
                //              Delay, in milliseconds, to wait before firing.
                //              The delay is a delta with respect to the previous automation call.
                //              For example, the following code ends after 600ms:
                // |    robot.mouseClick({left:true}, 100) // first call; wait 100ms
                // |    robot.typeKeys("dij", 500) // 500ms AFTER previous call; 600ms in all
                // duration:
                //              Approximate time Robot will spend moving the mouse
                //              The default is 100ms.
                // offsetX:
                //              x offset relative to the node, in pixels, to move the mouse. The default is half the node's width.
                // offsetY:
                //              y offset relative to the node, in pixels, to move the mouse. The default is half the node's height.

                robot._assertRobot();

                // Schedule an action to scroll the node into view, then calculate it's center point
                var point = {};
                this.sequence(function(){
                        node = robot._resolveNode(node);
                        robot._scrollIntoView(node);
                        var pos = robot._position(node);
                        if(offsetY === undefined){
                                offsetX = pos.w/2;
                                offsetY = pos.h/2;
                        }
                        point.x = pos.x+offsetX;
                        point.y = pos.y+offsetY;
                }, delay);

                // Schedule a bunch of actions to move the mouse from the current position to point.
                // These actions won't run until after the above callback.
                this.mouseMoveTo(point, 0, duration, false);
        }
});

return robot;
});