X-Git-Url: http://git.ithinksw.org/extjs.git/blobdiff_plain/ee06f37b0f6f6d94cd05a6ffae556660f7c4a2bc..c930e9176a5a85509c5b0230e2bff5c22a591432:/src/widgets/grid/ColumnDD.js

diff --git a/src/widgets/grid/ColumnDD.js b/src/widgets/grid/ColumnDD.js
new file mode 100644
index 00000000..96fe6fd3
--- /dev/null
+++ b/src/widgets/grid/ColumnDD.js
@@ -0,0 +1,199 @@
+/*!
+ * Ext JS Library 3.0.0
+ * Copyright(c) 2006-2009 Ext JS, LLC
+ * licensing@extjs.com
+ * http://www.extjs.com/license
+ */
+// private
+// This is a support class used internally by the Grid components
+Ext.grid.HeaderDragZone = function(grid, hd, hd2){
+    this.grid = grid;
+    this.view = grid.getView();
+    this.ddGroup = "gridHeader" + this.grid.getGridEl().id;
+    Ext.grid.HeaderDragZone.superclass.constructor.call(this, hd);
+    if(hd2){
+        this.setHandleElId(Ext.id(hd));
+        this.setOuterHandleElId(Ext.id(hd2));
+    }
+    this.scroll = false;
+};
+Ext.extend(Ext.grid.HeaderDragZone, Ext.dd.DragZone, {
+    maxDragWidth: 120,
+    getDragData : function(e){
+        var t = Ext.lib.Event.getTarget(e);
+        var h = this.view.findHeaderCell(t);
+        if(h){
+            return {ddel: h.firstChild, header:h};
+        }
+        return false;
+    },
+
+    onInitDrag : function(e){
+        this.view.headersDisabled = true;
+        var clone = this.dragData.ddel.cloneNode(true);
+        clone.id = Ext.id();
+        clone.style.width = Math.min(this.dragData.header.offsetWidth,this.maxDragWidth) + "px";
+        this.proxy.update(clone);
+        return true;
+    },
+
+    afterValidDrop : function(){
+        var v = this.view;
+        setTimeout(function(){
+            v.headersDisabled = false;
+        }, 50);
+    },
+
+    afterInvalidDrop : function(){
+        var v = this.view;
+        setTimeout(function(){
+            v.headersDisabled = false;
+        }, 50);
+    }
+});
+
+// private
+// This is a support class used internally by the Grid components
+Ext.grid.HeaderDropZone = function(grid, hd, hd2){
+    this.grid = grid;
+    this.view = grid.getView();
+    // split the proxies so they don't interfere with mouse events
+    this.proxyTop = Ext.DomHelper.append(document.body, {
+        cls:"col-move-top", html:" "
+    }, true);
+    this.proxyBottom = Ext.DomHelper.append(document.body, {
+        cls:"col-move-bottom", html:" "
+    }, true);
+    this.proxyTop.hide = this.proxyBottom.hide = function(){
+        this.setLeftTop(-100,-100);
+        this.setStyle("visibility", "hidden");
+    };
+    this.ddGroup = "gridHeader" + this.grid.getGridEl().id;
+    // temporarily disabled
+    //Ext.dd.ScrollManager.register(this.view.scroller.dom);
+    Ext.grid.HeaderDropZone.superclass.constructor.call(this, grid.getGridEl().dom);
+};
+Ext.extend(Ext.grid.HeaderDropZone, Ext.dd.DropZone, {
+    proxyOffsets : [-4, -9],
+    fly: Ext.Element.fly,
+
+    getTargetFromEvent : function(e){
+        var t = Ext.lib.Event.getTarget(e);
+        var cindex = this.view.findCellIndex(t);
+        if(cindex !== false){
+            return this.view.getHeaderCell(cindex);
+        }
+    },
+
+    nextVisible : function(h){
+        var v = this.view, cm = this.grid.colModel;
+        h = h.nextSibling;
+        while(h){
+            if(!cm.isHidden(v.getCellIndex(h))){
+                return h;
+            }
+            h = h.nextSibling;
+        }
+        return null;
+    },
+
+    prevVisible : function(h){
+        var v = this.view, cm = this.grid.colModel;
+        h = h.prevSibling;
+        while(h){
+            if(!cm.isHidden(v.getCellIndex(h))){
+                return h;
+            }
+            h = h.prevSibling;
+        }
+        return null;
+    },
+
+    positionIndicator : function(h, n, e){
+        var x = Ext.lib.Event.getPageX(e);
+        var r = Ext.lib.Dom.getRegion(n.firstChild);
+        var px, pt, py = r.top + this.proxyOffsets[1];
+        if((r.right - x) <= (r.right-r.left)/2){
+            px = r.right+this.view.borderWidth;
+            pt = "after";
+        }else{
+            px = r.left;
+            pt = "before";
+        }
+
+        if(this.grid.colModel.isFixed(this.view.getCellIndex(n))){
+            return false;
+        }
+
+        px +=  this.proxyOffsets[0];
+        this.proxyTop.setLeftTop(px, py);
+        this.proxyTop.show();
+        if(!this.bottomOffset){
+            this.bottomOffset = this.view.mainHd.getHeight();
+        }
+        this.proxyBottom.setLeftTop(px, py+this.proxyTop.dom.offsetHeight+this.bottomOffset);
+        this.proxyBottom.show();
+        return pt;
+    },
+
+    onNodeEnter : function(n, dd, e, data){
+        if(data.header != n){
+            this.positionIndicator(data.header, n, e);
+        }
+    },
+
+    onNodeOver : function(n, dd, e, data){
+        var result = false;
+        if(data.header != n){
+            result = this.positionIndicator(data.header, n, e);
+        }
+        if(!result){
+            this.proxyTop.hide();
+            this.proxyBottom.hide();
+        }
+        return result ? this.dropAllowed : this.dropNotAllowed;
+    },
+
+    onNodeOut : function(n, dd, e, data){
+        this.proxyTop.hide();
+        this.proxyBottom.hide();
+    },
+
+    onNodeDrop : function(n, dd, e, data){
+        var h = data.header;
+        if(h != n){
+            var cm = this.grid.colModel;
+            var x = Ext.lib.Event.getPageX(e);
+            var r = Ext.lib.Dom.getRegion(n.firstChild);
+            var pt = (r.right - x) <= ((r.right-r.left)/2) ? "after" : "before";
+            var oldIndex = this.view.getCellIndex(h);
+            var newIndex = this.view.getCellIndex(n);
+            if(pt == "after"){
+                newIndex++;
+            }
+            if(oldIndex < newIndex){
+                newIndex--;
+            }
+            cm.moveColumn(oldIndex, newIndex);
+            this.grid.fireEvent("columnmove", oldIndex, newIndex);
+            return true;
+        }
+        return false;
+    }
+});
+
+
+Ext.grid.GridView.ColumnDragZone = function(grid, hd){
+    Ext.grid.GridView.ColumnDragZone.superclass.constructor.call(this, grid, hd, null);
+    this.proxy.el.addClass('x-grid3-col-dd');
+};
+
+Ext.extend(Ext.grid.GridView.ColumnDragZone, Ext.grid.HeaderDragZone, {
+    handleMouseDown : function(e){
+
+    },
+
+    callHandleMouseDown : function(e){
+        Ext.grid.GridView.ColumnDragZone.superclass.handleMouseDown.call(this, e);
+    }
+});
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