| New file |
|---|
| 0,0 → 1,113 |
|---|
| if(!dojo._hasResource["dojox.grid._grid.drag"]){ //_hasResource checks added by build. Do not use _hasResource directly in your code. |
| dojo._hasResource["dojox.grid._grid.drag"] = true; |
| dojo.provide("dojox.grid._grid.drag"); |
| |
| // summary: |
| // utility functions for dragging as used in grid. |
| // begin closure |
| (function(){ |
| |
| var dgdrag = dojox.grid.drag = {}; |
| |
| dgdrag.dragging = false; |
| dgdrag.hysteresis = 2; |
| |
| dgdrag.capture = function(inElement) { |
| //console.debug('dojox.grid.drag.capture'); |
| if (inElement.setCapture) |
| inElement.setCapture(); |
| else { |
| document.addEventListener("mousemove", inElement.onmousemove, true); |
| document.addEventListener("mouseup", inElement.onmouseup, true); |
| document.addEventListener("click", inElement.onclick, true); |
| } |
| } |
| |
| dgdrag.release = function(inElement) { |
| //console.debug('dojox.grid.drag.release'); |
| if(inElement.releaseCapture){ |
| inElement.releaseCapture(); |
| }else{ |
| document.removeEventListener("click", inElement.onclick, true); |
| document.removeEventListener("mouseup", inElement.onmouseup, true); |
| document.removeEventListener("mousemove", inElement.onmousemove, true); |
| } |
| } |
| |
| dgdrag.start = function(inElement, inOnDrag, inOnEnd, inEvent, inOnStart){ |
| if(/*dgdrag.elt ||*/ !inElement || dgdrag.dragging){ |
| console.debug('failed to start drag: bad input node or already dragging'); |
| return; |
| } |
| dgdrag.dragging = true; |
| dgdrag.elt = inElement; |
| dgdrag.events = { |
| drag: inOnDrag || dojox.grid.nop, |
| end: inOnEnd || dojox.grid.nop, |
| start: inOnStart || dojox.grid.nop, |
| oldmove: inElement.onmousemove, |
| oldup: inElement.onmouseup, |
| oldclick: inElement.onclick |
| }; |
| dgdrag.positionX = (inEvent && ('screenX' in inEvent) ? inEvent.screenX : false); |
| dgdrag.positionY = (inEvent && ('screenY' in inEvent) ? inEvent.screenY : false); |
| dgdrag.started = (dgdrag.position === false); |
| inElement.onmousemove = dgdrag.mousemove; |
| inElement.onmouseup = dgdrag.mouseup; |
| inElement.onclick = dgdrag.click; |
| dgdrag.capture(dgdrag.elt); |
| } |
| |
| dgdrag.end = function(){ |
| //console.debug("dojox.grid.drag.end"); |
| dgdrag.release(dgdrag.elt); |
| dgdrag.elt.onmousemove = dgdrag.events.oldmove; |
| dgdrag.elt.onmouseup = dgdrag.events.oldup; |
| dgdrag.elt.onclick = dgdrag.events.oldclick; |
| dgdrag.elt = null; |
| try{ |
| if(dgdrag.started){ |
| dgdrag.events.end(); |
| } |
| }finally{ |
| dgdrag.dragging = false; |
| } |
| } |
| |
| dgdrag.calcDelta = function(inEvent){ |
| inEvent.deltaX = inEvent.screenX - dgdrag.positionX; |
| inEvent.deltaY = inEvent.screenY - dgdrag.positionY; |
| } |
| |
| dgdrag.hasMoved = function(inEvent){ |
| return Math.abs(inEvent.deltaX) + Math.abs(inEvent.deltaY) > dgdrag.hysteresis; |
| } |
| |
| dgdrag.mousemove = function(inEvent){ |
| inEvent = dojo.fixEvent(inEvent); |
| dojo.stopEvent(inEvent); |
| dgdrag.calcDelta(inEvent); |
| if((!dgdrag.started)&&(dgdrag.hasMoved(inEvent))){ |
| dgdrag.events.start(inEvent); |
| dgdrag.started = true; |
| } |
| if(dgdrag.started){ |
| dgdrag.events.drag(inEvent); |
| } |
| } |
| |
| dgdrag.mouseup = function(inEvent){ |
| //console.debug("dojox.grid.drag.mouseup"); |
| dojo.stopEvent(dojo.fixEvent(inEvent)); |
| dgdrag.end(); |
| } |
| |
| dgdrag.click = function(inEvent){ |
| dojo.stopEvent(dojo.fixEvent(inEvent)); |
| //dgdrag.end(); |
| } |
| |
| })(); |
| // end closure |
| |
| } |