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path: root/includes/js/dojox/grid/_grid/scroller.js
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-rw-r--r--includes/js/dojox/grid/_grid/scroller.js489
1 files changed, 0 insertions, 489 deletions
diff --git a/includes/js/dojox/grid/_grid/scroller.js b/includes/js/dojox/grid/_grid/scroller.js
deleted file mode 100644
index d331367..0000000
--- a/includes/js/dojox/grid/_grid/scroller.js
+++ /dev/null
@@ -1,489 +0,0 @@
-if(!dojo._hasResource['dojox.grid._grid.scroller']){ //_hasResource checks added by build. Do not use _hasResource directly in your code.
-dojo._hasResource['dojox.grid._grid.scroller'] = true;
-dojo.provide('dojox.grid._grid.scroller');
-
-dojo.declare('dojox.grid.scroller.base', null, {
- // summary:
- // virtual scrollbox, abstract class
- // Content must in /rows/
- // Rows are managed in contiguous sets called /pages/
- // There are a fixed # of rows per page
- // The minimum rendered unit is a page
- constructor: function(){
- this.pageHeights = [];
- this.stack = [];
- },
- // specified
- rowCount: 0, // total number of rows to manage
- defaultRowHeight: 10, // default height of a row
- keepRows: 100, // maximum number of rows that should exist at one time
- contentNode: null, // node to contain pages
- scrollboxNode: null, // node that controls scrolling
- // calculated
- defaultPageHeight: 0, // default height of a page
- keepPages: 10, // maximum number of pages that should exists at one time
- pageCount: 0,
- windowHeight: 0,
- firstVisibleRow: 0,
- lastVisibleRow: 0,
- // private
- page: 0,
- pageTop: 0,
- // init
- init: function(inRowCount, inKeepRows, inRowsPerPage){
- switch(arguments.length){
- case 3: this.rowsPerPage = inRowsPerPage;
- case 2: this.keepRows = inKeepRows;
- case 1: this.rowCount = inRowCount;
- }
- this.defaultPageHeight = this.defaultRowHeight * this.rowsPerPage;
- //this.defaultPageHeight = this.defaultRowHeight * Math.min(this.rowsPerPage, this.rowCount);
- this.pageCount = Math.ceil(this.rowCount / this.rowsPerPage);
- this.setKeepInfo(this.keepRows);
- this.invalidate();
- if(this.scrollboxNode){
- this.scrollboxNode.scrollTop = 0;
- this.scroll(0);
- this.scrollboxNode.onscroll = dojo.hitch(this, 'onscroll');
- }
- },
- setKeepInfo: function(inKeepRows){
- this.keepRows = inKeepRows;
- this.keepPages = !this.keepRows ? this.keepRows : Math.max(Math.ceil(this.keepRows / this.rowsPerPage), 2);
- },
- // updating
- invalidate: function(){
- this.invalidateNodes();
- this.pageHeights = [];
- this.height = (this.pageCount ? (this.pageCount - 1)* this.defaultPageHeight + this.calcLastPageHeight() : 0);
- this.resize();
- },
- updateRowCount: function(inRowCount){
- this.invalidateNodes();
- this.rowCount = inRowCount;
- // update page count, adjust document height
- oldPageCount = this.pageCount;
- this.pageCount = Math.ceil(this.rowCount / this.rowsPerPage);
- if(this.pageCount < oldPageCount){
- for(var i=oldPageCount-1; i>=this.pageCount; i--){
- this.height -= this.getPageHeight(i);
- delete this.pageHeights[i]
- }
- }else if(this.pageCount > oldPageCount){
- this.height += this.defaultPageHeight * (this.pageCount - oldPageCount - 1) + this.calcLastPageHeight();
- }
- this.resize();
- },
- // abstract interface
- pageExists: function(inPageIndex){
- },
- measurePage: function(inPageIndex){
- },
- positionPage: function(inPageIndex, inPos){
- },
- repositionPages: function(inPageIndex){
- },
- installPage: function(inPageIndex){
- },
- preparePage: function(inPageIndex, inPos, inReuseNode){
- },
- renderPage: function(inPageIndex){
- },
- removePage: function(inPageIndex){
- },
- pacify: function(inShouldPacify){
- },
- // pacification
- pacifying: false,
- pacifyTicks: 200,
- setPacifying: function(inPacifying){
- if(this.pacifying != inPacifying){
- this.pacifying = inPacifying;
- this.pacify(this.pacifying);
- }
- },
- startPacify: function(){
- this.startPacifyTicks = new Date().getTime();
- },
- doPacify: function(){
- var result = (new Date().getTime() - this.startPacifyTicks) > this.pacifyTicks;
- this.setPacifying(true);
- this.startPacify();
- return result;
- },
- endPacify: function(){
- this.setPacifying(false);
- },
- // default sizing implementation
- resize: function(){
- if(this.scrollboxNode){
- this.windowHeight = this.scrollboxNode.clientHeight;
- }
- dojox.grid.setStyleHeightPx(this.contentNode, this.height);
- },
- calcLastPageHeight: function(){
- if(!this.pageCount){
- return 0;
- }
- var lastPage = this.pageCount - 1;
- var lastPageHeight = ((this.rowCount % this.rowsPerPage)||(this.rowsPerPage)) * this.defaultRowHeight;
- this.pageHeights[lastPage] = lastPageHeight;
- return lastPageHeight;
- },
- updateContentHeight: function(inDh){
- this.height += inDh;
- this.resize();
- },
- updatePageHeight: function(inPageIndex){
- if(this.pageExists(inPageIndex)){
- var oh = this.getPageHeight(inPageIndex);
- var h = (this.measurePage(inPageIndex))||(oh);
- this.pageHeights[inPageIndex] = h;
- if((h)&&(oh != h)){
- this.updateContentHeight(h - oh)
- this.repositionPages(inPageIndex);
- }
- }
- },
- rowHeightChanged: function(inRowIndex){
- this.updatePageHeight(Math.floor(inRowIndex / this.rowsPerPage));
- },
- // scroller core
- invalidateNodes: function(){
- while(this.stack.length){
- this.destroyPage(this.popPage());
- }
- },
- createPageNode: function(){
- var p = document.createElement('div');
- p.style.position = 'absolute';
- //p.style.width = '100%';
- p.style[dojo._isBodyLtr() ? "left" : "right"] = '0';
- return p;
- },
- getPageHeight: function(inPageIndex){
- var ph = this.pageHeights[inPageIndex];
- return (ph !== undefined ? ph : this.defaultPageHeight);
- },
- // FIXME: this is not a stack, it's a FIFO list
- pushPage: function(inPageIndex){
- return this.stack.push(inPageIndex);
- },
- popPage: function(){
- return this.stack.shift();
- },
- findPage: function(inTop){
- var i = 0, h = 0;
- for(var ph = 0; i<this.pageCount; i++, h += ph){
- ph = this.getPageHeight(i);
- if(h + ph >= inTop){
- break;
- }
- }
- this.page = i;
- this.pageTop = h;
- },
- buildPage: function(inPageIndex, inReuseNode, inPos){
- this.preparePage(inPageIndex, inReuseNode);
- this.positionPage(inPageIndex, inPos);
- // order of operations is key below
- this.installPage(inPageIndex);
- this.renderPage(inPageIndex);
- // order of operations is key above
- this.pushPage(inPageIndex);
- },
- needPage: function(inPageIndex, inPos){
- var h = this.getPageHeight(inPageIndex), oh = h;
- if(!this.pageExists(inPageIndex)){
- this.buildPage(inPageIndex, this.keepPages&&(this.stack.length >= this.keepPages), inPos);
- h = this.measurePage(inPageIndex) || h;
- this.pageHeights[inPageIndex] = h;
- if(h && (oh != h)){
- this.updateContentHeight(h - oh)
- }
- }else{
- this.positionPage(inPageIndex, inPos);
- }
- return h;
- },
- onscroll: function(){
- this.scroll(this.scrollboxNode.scrollTop);
- },
- scroll: function(inTop){
- this.startPacify();
- this.findPage(inTop);
- var h = this.height;
- var b = this.getScrollBottom(inTop);
- for(var p=this.page, y=this.pageTop; (p<this.pageCount)&&((b<0)||(y<b)); p++){
- y += this.needPage(p, y);
- }
- this.firstVisibleRow = this.getFirstVisibleRow(this.page, this.pageTop, inTop);
- this.lastVisibleRow = this.getLastVisibleRow(p - 1, y, b);
- // indicates some page size has been updated
- if(h != this.height){
- this.repositionPages(p-1);
- }
- this.endPacify();
- },
- getScrollBottom: function(inTop){
- return (this.windowHeight >= 0 ? inTop + this.windowHeight : -1);
- },
- // events
- processNodeEvent: function(e, inNode){
- var t = e.target;
- while(t && (t != inNode) && t.parentNode && (t.parentNode.parentNode != inNode)){
- t = t.parentNode;
- }
- if(!t || !t.parentNode || (t.parentNode.parentNode != inNode)){
- return false;
- }
- var page = t.parentNode;
- e.topRowIndex = page.pageIndex * this.rowsPerPage;
- e.rowIndex = e.topRowIndex + dojox.grid.indexInParent(t);
- e.rowTarget = t;
- return true;
- },
- processEvent: function(e){
- return this.processNodeEvent(e, this.contentNode);
- },
- dummy: 0
-});
-
-dojo.declare('dojox.grid.scroller', dojox.grid.scroller.base, {
- // summary:
- // virtual scroller class, makes no assumption about shape of items being scrolled
- constructor: function(){
- this.pageNodes = [];
- },
- // virtual rendering interface
- renderRow: function(inRowIndex, inPageNode){
- },
- removeRow: function(inRowIndex){
- },
- // page node operations
- getDefaultNodes: function(){
- return this.pageNodes;
- },
- getDefaultPageNode: function(inPageIndex){
- return this.getDefaultNodes()[inPageIndex];
- },
- positionPageNode: function(inNode, inPos){
- inNode.style.top = inPos + 'px';
- },
- getPageNodePosition: function(inNode){
- return inNode.offsetTop;
- },
- repositionPageNodes: function(inPageIndex, inNodes){
- var last = 0;
- for(var i=0; i<this.stack.length; i++){
- last = Math.max(this.stack[i], last);
- }
- //
- var n = inNodes[inPageIndex];
- var y = (n ? this.getPageNodePosition(n) + this.getPageHeight(inPageIndex) : 0);
- //console.log('detected height change, repositioning from #%d (%d) @ %d ', inPageIndex + 1, last, y, this.pageHeights[0]);
- //
- for(var p=inPageIndex+1; p<=last; p++){
- n = inNodes[p];
- if(n){
- //console.log('#%d @ %d', inPageIndex, y, this.getPageNodePosition(n));
- if(this.getPageNodePosition(n) == y){
- return;
- }
- //console.log('placing page %d at %d', p, y);
- this.positionPage(p, y);
- }
- y += this.getPageHeight(p);
- }
- },
- invalidatePageNode: function(inPageIndex, inNodes){
- var p = inNodes[inPageIndex];
- if(p){
- delete inNodes[inPageIndex];
- this.removePage(inPageIndex, p);
- dojox.grid.cleanNode(p);
- p.innerHTML = '';
- }
- return p;
- },
- preparePageNode: function(inPageIndex, inReusePageIndex, inNodes){
- var p = (inReusePageIndex === null ? this.createPageNode() : this.invalidatePageNode(inReusePageIndex, inNodes));
- p.pageIndex = inPageIndex;
- p.id = (this._pageIdPrefix || "") + 'page-' + inPageIndex;
- inNodes[inPageIndex] = p;
- },
- // implementation for page manager
- pageExists: function(inPageIndex){
- return Boolean(this.getDefaultPageNode(inPageIndex));
- },
- measurePage: function(inPageIndex){
- return this.getDefaultPageNode(inPageIndex).offsetHeight;
- },
- positionPage: function(inPageIndex, inPos){
- this.positionPageNode(this.getDefaultPageNode(inPageIndex), inPos);
- },
- repositionPages: function(inPageIndex){
- this.repositionPageNodes(inPageIndex, this.getDefaultNodes());
- },
- preparePage: function(inPageIndex, inReuseNode){
- this.preparePageNode(inPageIndex, (inReuseNode ? this.popPage() : null), this.getDefaultNodes());
- },
- installPage: function(inPageIndex){
- this.contentNode.appendChild(this.getDefaultPageNode(inPageIndex));
- },
- destroyPage: function(inPageIndex){
- var p = this.invalidatePageNode(inPageIndex, this.getDefaultNodes());
- dojox.grid.removeNode(p);
- },
- // rendering implementation
- renderPage: function(inPageIndex){
- var node = this.pageNodes[inPageIndex];
- for(var i=0, j=inPageIndex*this.rowsPerPage; (i<this.rowsPerPage)&&(j<this.rowCount); i++, j++){
- this.renderRow(j, node);
- }
- },
- removePage: function(inPageIndex){
- for(var i=0, j=inPageIndex*this.rowsPerPage; i<this.rowsPerPage; i++, j++){
- this.removeRow(j);
- }
- },
- // scroll control
- getPageRow: function(inPage){
- return inPage * this.rowsPerPage;
- },
- getLastPageRow: function(inPage){
- return Math.min(this.rowCount, this.getPageRow(inPage + 1)) - 1;
- },
- getFirstVisibleRowNodes: function(inPage, inPageTop, inScrollTop, inNodes){
- var row = this.getPageRow(inPage);
- var rows = dojox.grid.divkids(inNodes[inPage]);
- for(var i=0,l=rows.length; i<l && inPageTop<inScrollTop; i++, row++){
- inPageTop += rows[i].offsetHeight;
- }
- return (row ? row - 1 : row);
- },
- getFirstVisibleRow: function(inPage, inPageTop, inScrollTop){
- if(!this.pageExists(inPage)){
- return 0;
- }
- return this.getFirstVisibleRowNodes(inPage, inPageTop, inScrollTop, this.getDefaultNodes());
- },
- getLastVisibleRowNodes: function(inPage, inBottom, inScrollBottom, inNodes){
- var row = this.getLastPageRow(inPage);
- var rows = dojox.grid.divkids(inNodes[inPage]);
- for(var i=rows.length-1; i>=0 && inBottom>inScrollBottom; i--, row--){
- inBottom -= rows[i].offsetHeight;
- }
- return row + 1;
- },
- getLastVisibleRow: function(inPage, inBottom, inScrollBottom){
- if(!this.pageExists(inPage)){
- return 0;
- }
- return this.getLastVisibleRowNodes(inPage, inBottom, inScrollBottom, this.getDefaultNodes());
- },
- findTopRowForNodes: function(inScrollTop, inNodes){
- var rows = dojox.grid.divkids(inNodes[this.page]);
- for(var i=0,l=rows.length,t=this.pageTop,h; i<l; i++){
- h = rows[i].offsetHeight;
- t += h;
- if(t >= inScrollTop){
- this.offset = h - (t - inScrollTop);
- return i + this.page * this.rowsPerPage;
- }
- }
- return -1;
- },
- findScrollTopForNodes: function(inRow, inNodes){
- var rowPage = Math.floor(inRow / this.rowsPerPage);
- var t = 0;
- for(var i=0; i<rowPage; i++){
- t += this.getPageHeight(i);
- }
- this.pageTop = t;
- this.needPage(rowPage, this.pageTop);
- var rows = dojox.grid.divkids(inNodes[rowPage]);
- var r = inRow - this.rowsPerPage * rowPage;
- for(var i=0,l=rows.length; i<l && i<r; i++){
- t += rows[i].offsetHeight;
- }
- return t;
- },
- findTopRow: function(inScrollTop){
- return this.findTopRowForNodes(inScrollTop, this.getDefaultNodes());
- },
- findScrollTop: function(inRow){
- return this.findScrollTopForNodes(inRow, this.getDefaultNodes());
- },
- dummy: 0
-});
-
-dojo.declare('dojox.grid.scroller.columns', dojox.grid.scroller, {
- // summary:
- // Virtual scroller class that scrolls list of columns. Owned by grid and used internally
- // for virtual scrolling.
- constructor: function(inContentNodes){
- this.setContentNodes(inContentNodes);
- },
- // nodes
- setContentNodes: function(inNodes){
- this.contentNodes = inNodes;
- this.colCount = (this.contentNodes ? this.contentNodes.length : 0);
- this.pageNodes = [];
- for(var i=0; i<this.colCount; i++){
- this.pageNodes[i] = [];
- }
- },
- getDefaultNodes: function(){
- return this.pageNodes[0] || [];
- },
- scroll: function(inTop) {
- if(this.colCount){
- dojox.grid.scroller.prototype.scroll.call(this, inTop);
- }
- },
- // resize
- resize: function(){
- if(this.scrollboxNode){
- this.windowHeight = this.scrollboxNode.clientHeight;
- }
- for(var i=0; i<this.colCount; i++){
- dojox.grid.setStyleHeightPx(this.contentNodes[i], this.height);
- }
- },
- // implementation for page manager
- positionPage: function(inPageIndex, inPos){
- for(var i=0; i<this.colCount; i++){
- this.positionPageNode(this.pageNodes[i][inPageIndex], inPos);
- }
- },
- preparePage: function(inPageIndex, inReuseNode){
- var p = (inReuseNode ? this.popPage() : null);
- for(var i=0; i<this.colCount; i++){
- this.preparePageNode(inPageIndex, p, this.pageNodes[i]);
- }
- },
- installPage: function(inPageIndex){
- for(var i=0; i<this.colCount; i++){
- this.contentNodes[i].appendChild(this.pageNodes[i][inPageIndex]);
- }
- },
- destroyPage: function(inPageIndex){
- for(var i=0; i<this.colCount; i++){
- dojox.grid.removeNode(this.invalidatePageNode(inPageIndex, this.pageNodes[i]));
- }
- },
- // rendering implementation
- renderPage: function(inPageIndex){
- var nodes = [];
- for(var i=0; i<this.colCount; i++){
- nodes[i] = this.pageNodes[i][inPageIndex];
- }
- //this.renderRows(inPageIndex*this.rowsPerPage, this.rowsPerPage, nodes);
- for(var i=0, j=inPageIndex*this.rowsPerPage; (i<this.rowsPerPage)&&(j<this.rowCount); i++, j++){
- this.renderRow(j, nodes);
- }
- }
-});
-
-}
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