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author | mensonge <mensonge@b3834d28-1941-0410-a4f8-b48e95affb8f> | 2008-11-13 09:49:11 +0000 |
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committer | mensonge <mensonge@b3834d28-1941-0410-a4f8-b48e95affb8f> | 2008-11-13 09:49:11 +0000 |
commit | e44a7e37b6c7b5961adaffc62b9042b8d442938e (patch) | |
tree | 95b67c356e93163467db2451f2b8cce84ed5d582 /includes/js/dijit/_base/place.js | |
parent | a62b9742ee5e28bcec6872d88f50f25b820914f6 (diff) | |
download | semanticscuttle-e44a7e37b6c7b5961adaffc62b9042b8d442938e.tar.gz semanticscuttle-e44a7e37b6c7b5961adaffc62b9042b8d442938e.tar.bz2 |
New feature: basic Ajax suggestion for tags and implementation of Dojo toolkit
git-svn-id: https://semanticscuttle.svn.sourceforge.net/svnroot/semanticscuttle/trunk@151 b3834d28-1941-0410-a4f8-b48e95affb8f
Diffstat (limited to 'includes/js/dijit/_base/place.js')
-rw-r--r-- | includes/js/dijit/_base/place.js | 213 |
1 files changed, 213 insertions, 0 deletions
diff --git a/includes/js/dijit/_base/place.js b/includes/js/dijit/_base/place.js new file mode 100644 index 0000000..3165c11 --- /dev/null +++ b/includes/js/dijit/_base/place.js @@ -0,0 +1,213 @@ +if(!dojo._hasResource["dijit._base.place"]){ //_hasResource checks added by build. Do not use _hasResource directly in your code. +dojo._hasResource["dijit._base.place"] = true; +dojo.provide("dijit._base.place"); + +// ported from dojo.html.util + +dijit.getViewport = function(){ + // summary + // Returns the dimensions and scroll position of the viewable area of a browser window + + var _window = dojo.global; + var _document = dojo.doc; + + // get viewport size + var w = 0, h = 0; + var de = _document.documentElement; + var dew = de.clientWidth, deh = de.clientHeight; + if(dojo.isMozilla){ + // mozilla + // _window.innerHeight includes the height taken by the scroll bar + // clientHeight is ideal but has DTD issues: + // #4539: FF reverses the roles of body.clientHeight/Width and documentElement.clientHeight/Width based on the DTD! + // check DTD to see whether body or documentElement returns the viewport dimensions using this algorithm: + var minw, minh, maxw, maxh; + var dbw = _document.body.clientWidth; + if(dbw > dew){ + minw = dew; + maxw = dbw; + }else{ + maxw = dew; + minw = dbw; + } + var dbh = _document.body.clientHeight; + if(dbh > deh){ + minh = deh; + maxh = dbh; + }else{ + maxh = deh; + minh = dbh; + } + w = (maxw > _window.innerWidth) ? minw : maxw; + h = (maxh > _window.innerHeight) ? minh : maxh; + }else if(!dojo.isOpera && _window.innerWidth){ + //in opera9, dojo.body().clientWidth should be used, instead + //of window.innerWidth/document.documentElement.clientWidth + //so we have to check whether it is opera + w = _window.innerWidth; + h = _window.innerHeight; + }else if(dojo.isIE && de && deh){ + w = dew; + h = deh; + }else if(dojo.body().clientWidth){ + // IE5, Opera + w = dojo.body().clientWidth; + h = dojo.body().clientHeight; + } + + // get scroll position + var scroll = dojo._docScroll(); + + return { w: w, h: h, l: scroll.x, t: scroll.y }; // object +}; + +dijit.placeOnScreen = function( + /* DomNode */ node, + /* Object */ pos, + /* Object */ corners, + /* boolean? */ tryOnly){ + // summary: + // Keeps 'node' in the visible area of the screen while trying to + // place closest to pos.x, pos.y. The input coordinates are + // expected to be the desired document position. + // + // Set which corner(s) you want to bind to, such as + // + // placeOnScreen(node, {x: 10, y: 20}, ["TR", "BL"]) + // + // The desired x/y will be treated as the topleft(TL)/topright(TR) or + // BottomLeft(BL)/BottomRight(BR) corner of the node. Each corner is tested + // and if a perfect match is found, it will be used. Otherwise, it goes through + // all of the specified corners, and choose the most appropriate one. + // + // NOTE: node is assumed to be absolutely or relatively positioned. + + var choices = dojo.map(corners, function(corner){ return { corner: corner, pos: pos }; }); + + return dijit._place(node, choices); +} + +dijit._place = function(/*DomNode*/ node, /* Array */ choices, /* Function */ layoutNode){ + // summary: + // Given a list of spots to put node, put it at the first spot where it fits, + // of if it doesn't fit anywhere then the place with the least overflow + // choices: Array + // Array of elements like: {corner: 'TL', pos: {x: 10, y: 20} } + // Above example says to put the top-left corner of the node at (10,20) + // layoutNode: Function(node, aroundNodeCorner, nodeCorner) + // for things like tooltip, they are displayed differently (and have different dimensions) + // based on their orientation relative to the parent. This adjusts the popup based on orientation. + + // get {x: 10, y: 10, w: 100, h:100} type obj representing position of + // viewport over document + var view = dijit.getViewport(); + + // This won't work if the node is inside a <div style="position: relative">, + // so reattach it to dojo.doc.body. (Otherwise, the positioning will be wrong + // and also it might get cutoff) + if(!node.parentNode || String(node.parentNode.tagName).toLowerCase() != "body"){ + dojo.body().appendChild(node); + } + + var best = null; + dojo.some(choices, function(choice){ + var corner = choice.corner; + var pos = choice.pos; + + // configure node to be displayed in given position relative to button + // (need to do this in order to get an accurate size for the node, because + // a tooltips size changes based on position, due to triangle) + if(layoutNode){ + layoutNode(node, choice.aroundCorner, corner); + } + + // get node's size + var style = node.style; + var oldDisplay = style.display; + var oldVis = style.visibility; + style.visibility = "hidden"; + style.display = ""; + var mb = dojo.marginBox(node); + style.display = oldDisplay; + style.visibility = oldVis; + + // coordinates and size of node with specified corner placed at pos, + // and clipped by viewport + var startX = (corner.charAt(1) == 'L' ? pos.x : Math.max(view.l, pos.x - mb.w)), + startY = (corner.charAt(0) == 'T' ? pos.y : Math.max(view.t, pos.y - mb.h)), + endX = (corner.charAt(1) == 'L' ? Math.min(view.l + view.w, startX + mb.w) : pos.x), + endY = (corner.charAt(0) == 'T' ? Math.min(view.t + view.h, startY + mb.h) : pos.y), + width = endX - startX, + height = endY - startY, + overflow = (mb.w - width) + (mb.h - height); + + if(best == null || overflow < best.overflow){ + best = { + corner: corner, + aroundCorner: choice.aroundCorner, + x: startX, + y: startY, + w: width, + h: height, + overflow: overflow + }; + } + return !overflow; + }); + + node.style.left = best.x + "px"; + node.style.top = best.y + "px"; + if(best.overflow && layoutNode){ + layoutNode(node, best.aroundCorner, best.corner); + } + return best; +} + +dijit.placeOnScreenAroundElement = function( + /* DomNode */ node, + /* DomNode */ aroundNode, + /* Object */ aroundCorners, + /* Function */ layoutNode){ + + // summary + // Like placeOnScreen, except it accepts aroundNode instead of x,y + // and attempts to place node around it. Uses margin box dimensions. + // + // aroundCorners + // specify Which corner of aroundNode should be + // used to place the node => which corner(s) of node to use (see the + // corners parameter in dijit.placeOnScreen) + // e.g. {'TL': 'BL', 'BL': 'TL'} + // + // layoutNode: Function(node, aroundNodeCorner, nodeCorner) + // for things like tooltip, they are displayed differently (and have different dimensions) + // based on their orientation relative to the parent. This adjusts the popup based on orientation. + + + // get coordinates of aroundNode + aroundNode = dojo.byId(aroundNode); + var oldDisplay = aroundNode.style.display; + aroundNode.style.display=""; + // #3172: use the slightly tighter border box instead of marginBox + var aroundNodeW = aroundNode.offsetWidth; //mb.w; + var aroundNodeH = aroundNode.offsetHeight; //mb.h; + var aroundNodePos = dojo.coords(aroundNode, true); + aroundNode.style.display=oldDisplay; + + // Generate list of possible positions for node + var choices = []; + for(var nodeCorner in aroundCorners){ + choices.push( { + aroundCorner: nodeCorner, + corner: aroundCorners[nodeCorner], + pos: { + x: aroundNodePos.x + (nodeCorner.charAt(1) == 'L' ? 0 : aroundNodeW), + y: aroundNodePos.y + (nodeCorner.charAt(0) == 'T' ? 0 : aroundNodeH) + } + }); + } + + return dijit._place(node, choices, layoutNode); +} + +} |