www.gusucode.com > 一个基于extjs的强大聊天插件源码程序 > 一个基于extjs的强大聊天插件/extjame/ext-jame/js/ext2/source/widgets/grid/GridView.js
/*
* Ext JS Library 2.0.2
* Copyright(c) 2006-2008, Ext JS, LLC.
* licensing@extjs.com
*
* http://extjs.com/license
*/
/**
* @class Ext.grid.GridView
* @extends Ext.util.Observable
* <p>This class encapsulates the user interface of an {@link Ext.grid.GridPanel}.
* Methods of this class may be used to access user interface elements to enable
* special display effects. Do not change the DOM structure of the user interface.</p>
* <p>This class does not provide ways to manipulate the underlying data. The data
* model of a Grid is held in an {@link Ext.data.Store}.</p>
* @constructor
* @param {Object} config
*/
Ext.grid.GridView = function(config){
Ext.apply(this, config);
// These events are only used internally by the grid components
this.addEvents(
/**
* @event beforerowremoved
* Internal UI Event. Fired before a row is removed.
* @param {Ext.grid.GridView} view
* @param {Number} rowIndex The index of the row to be removed.
* @param {Ext.data.Record} record The Record to be removed
*/
"beforerowremoved",
/**
* @event beforerowsinserted
* Internal UI Event. Fired before rows are inserted.
* @param {Ext.grid.GridView} view
* @param {Number} firstRow The index of the first row to be inserted.
* @param {Number} lastRow The index of the last row to be inserted.
*/
"beforerowsinserted",
/**
* @event beforerefresh
* Internal UI Event. Fired before the view is refreshed.
* @param {Ext.grid.GridView} view
*/
"beforerefresh",
/**
* @event rowremoved
* Internal UI Event. Fired after a row is removed.
* @param {Ext.grid.GridView} view
* @param {Number} rowIndex The index of the row that was removed.
* @param {Ext.data.Record} record The Record that was removed
*/
"rowremoved",
/**
* @event rowsinserted
* Internal UI Event. Fired after rows are inserted.
* @param {Ext.grid.GridView} view
* @param {Number} firstRow The index of the first inserted.
* @param {Number} lastRow The index of the last row inserted.
*/
"rowsinserted",
/**
* @event rowupdated
* Internal UI Event. Fired after a row has been updated.
* @param {Ext.grid.GridView} view
* @param {Number} firstRow The index of the row updated.
* @param {Ext.data.record} record The Record backing the row updated.
*/
"rowupdated",
/**
* @event refresh
* Internal UI Event. Fired after the GridView's body has been refreshed.
* @param {Ext.grid.GridView} view
*/
"refresh"
);
Ext.grid.GridView.superclass.constructor.call(this);
};
Ext.extend(Ext.grid.GridView, Ext.util.Observable, {
/**
* Override this function to apply custom CSS classes to rows during rendering. You can also supply custom
* parameters to the row template for the current row to customize how it is rendered using the <b>rowParams</b>
* parameter. This function should return the CSS class name (or empty string '' for none) that will be added
* to the row's wrapping div. To apply multiple class names, simply return them space-delimited within the string
* (e.g., 'my-class another-class').
* @param {Record} record The {@link Ext.data.Record} corresponding to the current row
* @param {Number} index The row index
* @param {Object} rowParams A config object that is passed to the row template during rendering that allows
* customization of various aspects of a body row, if applicable. Note that this object will only be applied if
* {@link #enableRowBody} = true, otherwise it will be ignored. The object may contain any of these properties:<ul>
* <li><code>body</code> : String <div class="sub-desc">An HTML fragment to be rendered as the cell's body content (defaults to '').</div></li>
* <li><code>bodyStyle</code> : String <div class="sub-desc">A CSS style string that will be applied to the row's TR style attribute (defaults to '').</div></li>
* <li><code>cols</code> : Number <div class="sub-desc">The column count to apply to the body row's TD colspan attribute (defaults to the current
* column count of the grid).</div></li>
* </ul>
* @param {Store} store The {@link Ext.data.Store} this grid is bound to
* @method getRowClass
* @return {String} a CSS class name to add to the row.
*/
/**
* @cfg {Boolean} enableRowBody True to add a second TR element per row that can be used to provide a row body
* that spans beneath the data row. Use the {@link #getRowClass} method's rowParams config to customize the row body.
*/
/**
* @cfg {String} emptyText Default text to display in the grid body when no rows are available (defaults to '').
*/
/**
* The amount of space to reserve for the scrollbar (defaults to 19 pixels)
* @type Number
*/
scrollOffset: 19,
/**
* @cfg {Boolean} autoFill True to auto expand the columns to fit the grid <b>when the grid is created</b>.
*/
autoFill: false,
/**
* @cfg {Boolean} forceFit True to auto expand/contract the size of the columns to fit the grid width and prevent horizontal scrolling.
*/
forceFit: false,
/**
* The CSS classes applied to a header when it is sorted. (defaults to ["sort-asc", "sort-desc"])
* @type Array
*/
sortClasses : ["sort-asc", "sort-desc"],
/**
* The text displayed in the "Sort Ascending" menu item
* @type String
*/
sortAscText : "Sort Ascending",
/**
* The text displayed in the "Sort Descending" menu item
* @type String
*/
sortDescText : "Sort Descending",
/**
* The text displayed in the "Columns" menu item
* @type String
*/
columnsText : "Columns",
// private
borderWidth: 2,
/* -------------------------------- UI Specific ----------------------------- */
// private
initTemplates : function(){
var ts = this.templates || {};
if(!ts.master){
ts.master = new Ext.Template(
'<div class="x-grid3" hidefocus="true">',
'<div class="x-grid3-viewport">',
'<div class="x-grid3-header"><div class="x-grid3-header-inner"><div class="x-grid3-header-offset">{header}</div></div><div class="x-clear"></div></div>',
'<div class="x-grid3-scroller"><div class="x-grid3-body">{body}</div><a href="#" class="x-grid3-focus" tabIndex="-1"></a></div>',
"</div>",
'<div class="x-grid3-resize-marker"> </div>',
'<div class="x-grid3-resize-proxy"> </div>',
"</div>"
);
}
if(!ts.header){
ts.header = new Ext.Template(
'<table border="0" cellspacing="0" cellpadding="0" style="{tstyle}">',
'<thead><tr class="x-grid3-hd-row">{cells}</tr></thead>',
"</table>"
);
}
if(!ts.hcell){
ts.hcell = new Ext.Template(
'<td class="x-grid3-hd x-grid3-cell x-grid3-td-{id}" style="{style}"><div {tooltip} {attr} class="x-grid3-hd-inner x-grid3-hd-{id}" unselectable="on" style="{istyle}">', this.grid.enableHdMenu ? '<a class="x-grid3-hd-btn" href="#"></a>' : '',
'{value}<img class="x-grid3-sort-icon" src="', Ext.BLANK_IMAGE_URL, '" />',
"</div></td>"
);
}
if(!ts.body){
ts.body = new Ext.Template('{rows}');
}
if(!ts.row){
ts.row = new Ext.Template(
'<div class="x-grid3-row {alt}" style="{tstyle}"><table class="x-grid3-row-table" border="0" cellspacing="0" cellpadding="0" style="{tstyle}">',
'<tbody><tr>{cells}</tr>',
(this.enableRowBody ? '<tr class="x-grid3-row-body-tr" style="{bodyStyle}"><td colspan="{cols}" class="x-grid3-body-cell" tabIndex="0" hidefocus="on"><div class="x-grid3-row-body">{body}</div></td></tr>' : ''),
'</tbody></table></div>'
);
}
if(!ts.cell){
ts.cell = new Ext.Template(
'<td class="x-grid3-col x-grid3-cell x-grid3-td-{id} {css}" style="{style}" tabIndex="0" {cellAttr}>',
'<div class="x-grid3-cell-inner x-grid3-col-{id}" unselectable="on" {attr}>{value}</div>',
"</td>"
);
}
for(var k in ts){
var t = ts[k];
if(t && typeof t.compile == 'function' && !t.compiled){
t.disableFormats = true;
t.compile();
}
}
this.templates = ts;
this.tdClass = 'x-grid3-cell';
this.cellSelector = 'td.x-grid3-cell';
this.hdCls = 'x-grid3-hd';
this.rowSelector = 'div.x-grid3-row';
this.colRe = new RegExp("x-grid3-td-([^\\s]+)", "");
},
// private
fly : function(el){
if(!this._flyweight){
this._flyweight = new Ext.Element.Flyweight(document.body);
}
this._flyweight.dom = el;
return this._flyweight;
},
// private
getEditorParent : function(ed){
return this.scroller.dom;
},
// private
initElements : function(){
var E = Ext.Element;
var el = this.grid.getGridEl().dom.firstChild;
var cs = el.childNodes;
this.el = new E(el);
this.mainWrap = new E(cs[0]);
this.mainHd = new E(this.mainWrap.dom.firstChild);
if(this.grid.hideHeaders){
this.mainHd.setDisplayed(false);
}
this.innerHd = this.mainHd.dom.firstChild;
this.scroller = new E(this.mainWrap.dom.childNodes[1]);
if(this.forceFit){
this.scroller.setStyle('overflow-x', 'hidden');
}
this.mainBody = new E(this.scroller.dom.firstChild);
this.focusEl = new E(this.scroller.dom.childNodes[1]);
this.focusEl.swallowEvent("click", true);
this.resizeMarker = new E(cs[1]);
this.resizeProxy = new E(cs[2]);
},
// private
getRows : function(){
return this.hasRows() ? this.mainBody.dom.childNodes : [];
},
// finder methods, used with delegation
// private
findCell : function(el){
if(!el){
return false;
}
return this.fly(el).findParent(this.cellSelector, 3);
},
// private
findCellIndex : function(el, requiredCls){
var cell = this.findCell(el);
if(cell && (!requiredCls || this.fly(cell).hasClass(requiredCls))){
return this.getCellIndex(cell);
}
return false;
},
// private
getCellIndex : function(el){
if(el){
var m = el.className.match(this.colRe);
if(m && m[1]){
return this.cm.getIndexById(m[1]);
}
}
return false;
},
// private
findHeaderCell : function(el){
var cell = this.findCell(el);
return cell && this.fly(cell).hasClass(this.hdCls) ? cell : null;
},
// private
findHeaderIndex : function(el){
return this.findCellIndex(el, this.hdCls);
},
// private
findRow : function(el){
if(!el){
return false;
}
return this.fly(el).findParent(this.rowSelector, 10);
},
// private
findRowIndex : function(el){
var r = this.findRow(el);
return r ? r.rowIndex : false;
},
// getter methods for fetching elements dynamically in the grid
/**
* Return the <TR> HtmlElement which represents a Grid row for the specified index.
* @param {Number} index The row index
* @return {HtmlElement} The <TR> element.
*/
getRow : function(row){
return this.getRows()[row];
},
/**
* Returns the grid's <TD> HtmlElement at the specified coordinates.
* @param {Number} row The row index in which to find the cell.
* @param {Number} col The column index of the cell.
* @return {HtmlElement} The <TD> at the specified coordinates.
*/
getCell : function(row, col){
return this.getRow(row).getElementsByTagName('td')[col];
},
/**
* Return the <TD> HtmlElement which represents the Grid's header cell for the specified column index.
* @param {Number} index The column index
* @return {HtmlElement} The <TD> element.
*/
getHeaderCell : function(index){
return this.mainHd.dom.getElementsByTagName('td')[index];
},
// manipulating elements
// private - use getRowClass to apply custom row classes
addRowClass : function(row, cls){
var r = this.getRow(row);
if(r){
this.fly(r).addClass(cls);
}
},
// private
removeRowClass : function(row, cls){
var r = this.getRow(row);
if(r){
this.fly(r).removeClass(cls);
}
},
// private
removeRow : function(row){
Ext.removeNode(this.getRow(row));
},
// private
removeRows : function(firstRow, lastRow){
var bd = this.mainBody.dom;
for(var rowIndex = firstRow; rowIndex <= lastRow; rowIndex++){
Ext.removeNode(bd.childNodes[firstRow]);
}
},
// scrolling stuff
// private
getScrollState : function(){
var sb = this.scroller.dom;
return {left: sb.scrollLeft, top: sb.scrollTop};
},
// private
restoreScroll : function(state){
var sb = this.scroller.dom;
sb.scrollLeft = state.left;
sb.scrollTop = state.top;
},
/**
* Scrolls the grid to the top
*/
scrollToTop : function(){
this.scroller.dom.scrollTop = 0;
this.scroller.dom.scrollLeft = 0;
},
// private
syncScroll : function(){
this.syncHeaderScroll();
var mb = this.scroller.dom;
this.grid.fireEvent("bodyscroll", mb.scrollLeft, mb.scrollTop);
},
// private
syncHeaderScroll : function(){
var mb = this.scroller.dom;
this.innerHd.scrollLeft = mb.scrollLeft;
this.innerHd.scrollLeft = mb.scrollLeft; // second time for IE (1/2 time first fails, other browsers ignore)
},
// private
updateSortIcon : function(col, dir){
var sc = this.sortClasses;
var hds = this.mainHd.select('td').removeClass(sc);
hds.item(col).addClass(sc[dir == "DESC" ? 1 : 0]);
},
// private
updateAllColumnWidths : function(){
var tw = this.getTotalWidth();
var clen = this.cm.getColumnCount();
var ws = [];
for(var i = 0; i < clen; i++){
ws[i] = this.getColumnWidth(i);
}
this.innerHd.firstChild.firstChild.style.width = tw;
for(var i = 0; i < clen; i++){
var hd = this.getHeaderCell(i);
hd.style.width = ws[i];
}
var ns = this.getRows();
for(var i = 0, len = ns.length; i < len; i++){
ns[i].style.width = tw;
ns[i].firstChild.style.width = tw;
var row = ns[i].firstChild.rows[0];
for(var j = 0; j < clen; j++){
row.childNodes[j].style.width = ws[j];
}
}
this.onAllColumnWidthsUpdated(ws, tw);
},
// private
updateColumnWidth : function(col, width){
var w = this.getColumnWidth(col);
var tw = this.getTotalWidth();
this.innerHd.firstChild.firstChild.style.width = tw;
var hd = this.getHeaderCell(col);
hd.style.width = w;
var ns = this.getRows();
for(var i = 0, len = ns.length; i < len; i++){
ns[i].style.width = tw;
ns[i].firstChild.style.width = tw;
ns[i].firstChild.rows[0].childNodes[col].style.width = w;
}
this.onColumnWidthUpdated(col, w, tw);
},
// private
updateColumnHidden : function(col, hidden){
var tw = this.getTotalWidth();
this.innerHd.firstChild.firstChild.style.width = tw;
var display = hidden ? 'none' : '';
var hd = this.getHeaderCell(col);
hd.style.display = display;
var ns = this.getRows();
for(var i = 0, len = ns.length; i < len; i++){
ns[i].style.width = tw;
ns[i].firstChild.style.width = tw;
ns[i].firstChild.rows[0].childNodes[col].style.display = display;
}
this.onColumnHiddenUpdated(col, hidden, tw);
delete this.lastViewWidth; // force recalc
this.layout();
},
// private
doRender : function(cs, rs, ds, startRow, colCount, stripe){
var ts = this.templates, ct = ts.cell, rt = ts.row, last = colCount-1;
var tstyle = 'width:'+this.getTotalWidth()+';';
// buffers
var buf = [], cb, c, p = {}, rp = {tstyle: tstyle}, r;
for(var j = 0, len = rs.length; j < len; j++){
r = rs[j]; cb = [];
var rowIndex = (j+startRow);
for(var i = 0; i < colCount; i++){
c = cs[i];
p.id = c.id;
p.css = i == 0 ? 'x-grid3-cell-first ' : (i == last ? 'x-grid3-cell-last ' : '');
p.attr = p.cellAttr = "";
p.value = c.renderer(r.data[c.name], p, r, rowIndex, i, ds);
p.style = c.style;
if(p.value == undefined || p.value === "") p.value = " ";
if(r.dirty && typeof r.modified[c.name] !== 'undefined'){
p.css += ' x-grid3-dirty-cell';
}
cb[cb.length] = ct.apply(p);
}
var alt = [];
if(stripe && ((rowIndex+1) % 2 == 0)){
alt[0] = "x-grid3-row-alt";
}
if(r.dirty){
alt[1] = " x-grid3-dirty-row";
}
rp.cols = colCount;
if(this.getRowClass){
alt[2] = this.getRowClass(r, rowIndex, rp, ds);
}
rp.alt = alt.join(" ");
rp.cells = cb.join("");
buf[buf.length] = rt.apply(rp);
}
return buf.join("");
},
// private
processRows : function(startRow, skipStripe){
if(this.ds.getCount() < 1){
return;
}
skipStripe = skipStripe || !this.grid.stripeRows;
startRow = startRow || 0;
var rows = this.getRows();
var cls = ' x-grid3-row-alt ';
for(var i = startRow, len = rows.length; i < len; i++){
var row = rows[i];
row.rowIndex = i;
if(!skipStripe){
var isAlt = ((i+1) % 2 == 0);
var hasAlt = (' '+row.className + ' ').indexOf(cls) != -1;
if(isAlt == hasAlt){
continue;
}
if(isAlt){
row.className += " x-grid3-row-alt";
}else{
row.className = row.className.replace("x-grid3-row-alt", "");
}
}
}
},
// private
renderUI : function(){
var header = this.renderHeaders();
var body = this.templates.body.apply({rows:''});
var html = this.templates.master.apply({
body: body,
header: header
});
var g = this.grid;
g.getGridEl().dom.innerHTML = html;
this.initElements();
this.mainBody.dom.innerHTML = this.renderRows();
this.processRows(0, true);
// get mousedowns early
Ext.fly(this.innerHd).on("click", this.handleHdDown, this);
this.mainHd.on("mouseover", this.handleHdOver, this);
this.mainHd.on("mouseout", this.handleHdOut, this);
this.mainHd.on("mousemove", this.handleHdMove, this);
this.scroller.on('scroll', this.syncScroll, this);
if(g.enableColumnResize !== false){
this.splitone = new Ext.grid.GridView.SplitDragZone(g, this.mainHd.dom);
}
if(g.enableColumnMove){
this.columnDrag = new Ext.grid.GridView.ColumnDragZone(g, this.innerHd);
this.columnDrop = new Ext.grid.HeaderDropZone(g, this.mainHd.dom);
}
if(g.enableHdMenu !== false){
if(g.enableColumnHide !== false){
this.colMenu = new Ext.menu.Menu({id:g.id + "-hcols-menu"});
this.colMenu.on("beforeshow", this.beforeColMenuShow, this);
this.colMenu.on("itemclick", this.handleHdMenuClick, this);
}
this.hmenu = new Ext.menu.Menu({id: g.id + "-hctx"});
this.hmenu.add(
{id:"asc", text: this.sortAscText, cls: "xg-hmenu-sort-asc"},
{id:"desc", text: this.sortDescText, cls: "xg-hmenu-sort-desc"}
);
if(g.enableColumnHide !== false){
this.hmenu.add('-',
{id:"columns", text: this.columnsText, menu: this.colMenu, iconCls: 'x-cols-icon'}
);
}
this.hmenu.on("itemclick", this.handleHdMenuClick, this);
//g.on("headercontextmenu", this.handleHdCtx, this);
}
if(g.enableDragDrop || g.enableDrag){
var dd = new Ext.grid.GridDragZone(g, {
ddGroup : g.ddGroup || 'GridDD'
});
}
this.updateHeaderSortState();
},
// private
layout : function(){
if(!this.mainBody){
return; // not rendered
}
var g = this.grid;
var c = g.getGridEl(), cm = this.cm,
expandCol = g.autoExpandColumn,
gv = this;
var csize = c.getSize(true);
var vw = csize.width;
if(vw < 20 || csize.height < 20){ // display: none?
return;
}
if(g.autoHeight){
this.scroller.dom.style.overflow = 'visible';
}else{
this.el.setSize(csize.width, csize.height);
var hdHeight = this.mainHd.getHeight();
var vh = csize.height - (hdHeight);
this.scroller.setSize(vw, vh);
if(this.innerHd){
this.innerHd.style.width = (vw)+'px';
}
}
if(this.forceFit){
if(this.lastViewWidth != vw){
this.fitColumns(false, false);
this.lastViewWidth = vw;
}
}else {
this.autoExpand();
this.syncHeaderScroll();
}
this.onLayout(vw, vh);
},
// template functions for subclasses and plugins
// these functions include precalculated values
onLayout : function(vw, vh){
// do nothing
},
onColumnWidthUpdated : function(col, w, tw){
// template method
},
onAllColumnWidthsUpdated : function(ws, tw){
// template method
},
onColumnHiddenUpdated : function(col, hidden, tw){
// template method
},
updateColumnText : function(col, text){
// template method
},
afterMove : function(colIndex){
// template method
},
/* ----------------------------------- Core Specific -------------------------------------------*/
// private
init: function(grid){
this.grid = grid;
this.initTemplates();
this.initData(grid.store, grid.colModel);
this.initUI(grid);
},
// private
getColumnId : function(index){
return this.cm.getColumnId(index);
},
// private
renderHeaders : function(){
var cm = this.cm, ts = this.templates;
var ct = ts.hcell;
var cb = [], sb = [], p = {};
for(var i = 0, len = cm.getColumnCount(); i < len; i++){
p.id = cm.getColumnId(i);
p.value = cm.getColumnHeader(i) || "";
p.style = this.getColumnStyle(i, true);
p.tooltip = this.getColumnTooltip(i);
if(cm.config[i].align == 'right'){
p.istyle = 'padding-right:16px';
} else {
delete p.istyle;
}
cb[cb.length] = ct.apply(p);
}
return ts.header.apply({cells: cb.join(""), tstyle:'width:'+this.getTotalWidth()+';'});
},
// private
getColumnTooltip : function(i){
var tt = this.cm.getColumnTooltip(i);
if(tt){
if(Ext.QuickTips.isEnabled()){
return 'ext:qtip="'+tt+'"';
}else{
return 'title="'+tt+'"';
}
}
return "";
},
// private
beforeUpdate : function(){
this.grid.stopEditing(true);
},
// private
updateHeaders : function(){
this.innerHd.firstChild.innerHTML = this.renderHeaders();
},
/**
* Focuses the specified row.
* @param {Number} row The row index
*/
focusRow : function(row){
this.focusCell(row, 0, false);
},
/**
* Focuses the specified cell.
* @param {Number} row The row index
* @param {Number} col The column index
*/
focusCell : function(row, col, hscroll){
var xy = this.ensureVisible(row, col, hscroll);
this.focusEl.setXY(xy);
if(Ext.isGecko){
this.focusEl.focus();
}else{
this.focusEl.focus.defer(1, this.focusEl);
}
},
// private
ensureVisible : function(row, col, hscroll){
if(typeof row != "number"){
row = row.rowIndex;
}
if(!this.ds){
return;
}
if(row < 0 || row >= this.ds.getCount()){
return;
}
col = (col !== undefined ? col : 0);
var rowEl = this.getRow(row), cellEl;
if(!(hscroll === false && col === 0)){
while(this.cm.isHidden(col)){
col++;
}
cellEl = this.getCell(row, col);
}
if(!rowEl){
return;
}
var c = this.scroller.dom;
var ctop = 0;
var p = rowEl, stop = this.el.dom;
while(p && p != stop){
ctop += p.offsetTop;
p = p.offsetParent;
}
ctop -= this.mainHd.dom.offsetHeight;
var cbot = ctop + rowEl.offsetHeight;
var ch = c.clientHeight;
var stop = parseInt(c.scrollTop, 10);
var sbot = stop + ch;
if(ctop < stop){
c.scrollTop = ctop;
}else if(cbot > sbot){
c.scrollTop = cbot-ch;
}
if(hscroll !== false){
var cleft = parseInt(cellEl.offsetLeft, 10);
var cright = cleft + cellEl.offsetWidth;
var sleft = parseInt(c.scrollLeft, 10);
var sright = sleft + c.clientWidth;
if(cleft < sleft){
c.scrollLeft = cleft;
}else if(cright > sright){
c.scrollLeft = cright-c.clientWidth;
}
}
return cellEl ? Ext.fly(cellEl).getXY() : [c.scrollLeft, Ext.fly(rowEl).getY()];
},
// private
insertRows : function(dm, firstRow, lastRow, isUpdate){
if(!isUpdate && firstRow === 0 && lastRow == dm.getCount()-1){
this.refresh();
}else{
if(!isUpdate){
this.fireEvent("beforerowsinserted", this, firstRow, lastRow);
}
var html = this.renderRows(firstRow, lastRow);
var before = this.getRow(firstRow);
if(before){
Ext.DomHelper.insertHtml('beforeBegin', before, html);
}else{
Ext.DomHelper.insertHtml('beforeEnd', this.mainBody.dom, html);
}
if(!isUpdate){
this.fireEvent("rowsinserted", this, firstRow, lastRow);
this.processRows(firstRow);
}
}
},
// private
deleteRows : function(dm, firstRow, lastRow){
if(dm.getRowCount()<1){
this.refresh();
}else{
this.fireEvent("beforerowsdeleted", this, firstRow, lastRow);
this.removeRows(firstRow, lastRow);
this.processRows(firstRow);
this.fireEvent("rowsdeleted", this, firstRow, lastRow);
}
},
// private
getColumnStyle : function(col, isHeader){
var style = !isHeader ? (this.cm.config[col].css || '') : '';
style += 'width:'+this.getColumnWidth(col)+';';
if(this.cm.isHidden(col)){
style += 'display:none;';
}
var align = this.cm.config[col].align;
if(align){
style += 'text-align:'+align+';';
}
return style;
},
// private
getColumnWidth : function(col){
var w = this.cm.getColumnWidth(col);
if(typeof w == 'number'){
return (Ext.isBorderBox ? w : (w-this.borderWidth > 0 ? w-this.borderWidth:0)) + 'px';
}
return w;
},
// private
getTotalWidth : function(){
return this.cm.getTotalWidth()+'px';
},
// private
fitColumns : function(preventRefresh, onlyExpand, omitColumn){
var cm = this.cm, leftOver, dist, i;
var tw = cm.getTotalWidth(false);
var aw = this.grid.getGridEl().getWidth(true)-this.scrollOffset;
if(aw < 20){ // not initialized, so don't screw up the default widths
return;
}
var extra = aw - tw;
if(extra === 0){
return false;
}
var vc = cm.getColumnCount(true);
var ac = vc-(typeof omitColumn == 'number' ? 1 : 0);
if(ac === 0){
ac = 1;
omitColumn = undefined;
}
var colCount = cm.getColumnCount();
var cols = [];
var extraCol = 0;
var width = 0;
var w;
for (i = 0; i < colCount; i++){
if(!cm.isHidden(i) && !cm.isFixed(i) && i !== omitColumn){
w = cm.getColumnWidth(i);
cols.push(i);
extraCol = i;
cols.push(w);
width += w;
}
}
var frac = (aw - cm.getTotalWidth())/width;
while (cols.length){
w = cols.pop();
i = cols.pop();
cm.setColumnWidth(i, Math.max(this.grid.minColumnWidth, Math.floor(w + w*frac)), true);
}
if((tw = cm.getTotalWidth(false)) > aw){
var adjustCol = ac != vc ? omitColumn : extraCol;
cm.setColumnWidth(adjustCol, Math.max(1,
cm.getColumnWidth(adjustCol)- (tw-aw)), true);
}
if(preventRefresh !== true){
this.updateAllColumnWidths();
}
return true;
},
// private
autoExpand : function(preventUpdate){
var g = this.grid, cm = this.cm;
if(!this.userResized && g.autoExpandColumn){
var tw = cm.getTotalWidth(false);
var aw = this.grid.getGridEl().getWidth(true)-this.scrollOffset;
if(tw != aw){
var ci = cm.getIndexById(g.autoExpandColumn);
var currentWidth = cm.getColumnWidth(ci);
var cw = Math.min(Math.max(((aw-tw)+currentWidth), g.autoExpandMin), g.autoExpandMax);
if(cw != currentWidth){
cm.setColumnWidth(ci, cw, true);
if(preventUpdate !== true){
this.updateColumnWidth(ci, cw);
}
}
}
}
},
// private
getColumnData : function(){
// build a map for all the columns
var cs = [], cm = this.cm, colCount = cm.getColumnCount();
for(var i = 0; i < colCount; i++){
var name = cm.getDataIndex(i);
cs[i] = {
name : (typeof name == 'undefined' ? this.ds.fields.get(i).name : name),
renderer : cm.getRenderer(i),
id : cm.getColumnId(i),
style : this.getColumnStyle(i)
};
}
return cs;
},
// private
renderRows : function(startRow, endRow){
// pull in all the crap needed to render rows
var g = this.grid, cm = g.colModel, ds = g.store, stripe = g.stripeRows;
var colCount = cm.getColumnCount();
if(ds.getCount() < 1){
return "";
}
var cs = this.getColumnData();
startRow = startRow || 0;
endRow = typeof endRow == "undefined"? ds.getCount()-1 : endRow;
// records to render
var rs = ds.getRange(startRow, endRow);
return this.doRender(cs, rs, ds, startRow, colCount, stripe);
},
// private
renderBody : function(){
var markup = this.renderRows();
return this.templates.body.apply({rows: markup});
},
// private
refreshRow : function(record){
var ds = this.ds, index;
if(typeof record == 'number'){
index = record;
record = ds.getAt(index);
}else{
index = ds.indexOf(record);
}
var cls = [];
this.insertRows(ds, index, index, true);
this.getRow(index).rowIndex = index;
this.onRemove(ds, record, index+1, true);
this.fireEvent("rowupdated", this, index, record);
},
/**
* Refreshs the grid UI
* @param {Boolean} headersToo (optional) True to also refresh the headers
*/
refresh : function(headersToo){
this.fireEvent("beforerefresh", this);
this.grid.stopEditing(true);
var result = this.renderBody();
this.mainBody.update(result);
if(headersToo === true){
this.updateHeaders();
this.updateHeaderSortState();
}
this.processRows(0, true);
this.layout();
this.applyEmptyText();
this.fireEvent("refresh", this);
},
// private
applyEmptyText : function(){
if(this.emptyText && !this.hasRows()){
this.mainBody.update('<div class="x-grid-empty">' + this.emptyText + '</div>');
}
},
// private
updateHeaderSortState : function(){
var state = this.ds.getSortState();
if(!state){
return;
}
if(!this.sortState || (this.sortState.field != state.field || this.sortState.direction != state.direction)){
this.grid.fireEvent('sortchange', this.grid, state);
}
this.sortState = state;
var sortColumn = this.cm.findColumnIndex(state.field);
if(sortColumn != -1){
var sortDir = state.direction;
this.updateSortIcon(sortColumn, sortDir);
}
},
// private
destroy : function(){
if(this.colMenu){
this.colMenu.removeAll();
Ext.menu.MenuMgr.unregister(this.colMenu);
this.colMenu.getEl().remove();
delete this.colMenu;
}
if(this.hmenu){
this.hmenu.removeAll();
Ext.menu.MenuMgr.unregister(this.hmenu);
this.hmenu.getEl().remove();
delete this.hmenu;
}
if(this.grid.enableColumnMove){
var dds = Ext.dd.DDM.ids['gridHeader' + this.grid.getGridEl().id];
if(dds){
for(var dd in dds){
if(!dds[dd].config.isTarget && dds[dd].dragElId){
var elid = dds[dd].dragElId;
dds[dd].unreg();
Ext.get(elid).remove();
} else if(dds[dd].config.isTarget){
dds[dd].proxyTop.remove();
dds[dd].proxyBottom.remove();
dds[dd].unreg();
}
if(Ext.dd.DDM.locationCache[dd]){
delete Ext.dd.DDM.locationCache[dd];
}
}
delete Ext.dd.DDM.ids['gridHeader' + this.grid.getGridEl().id];
}
}
Ext.destroy(this.resizeMarker, this.resizeProxy);
this.initData(null, null);
Ext.EventManager.removeResizeListener(this.onWindowResize, this);
},
// private
onDenyColumnHide : function(){
},
// private
render : function(){
var cm = this.cm;
var colCount = cm.getColumnCount();
if(this.autoFill){
this.fitColumns(true, true);
}else if(this.forceFit){
this.fitColumns(true, false);
}else if(this.grid.autoExpandColumn){
this.autoExpand(true);
}
this.renderUI();
},
/* --------------------------------- Model Events and Handlers --------------------------------*/
// private
initData : function(ds, cm){
if(this.ds){
this.ds.un("load", this.onLoad, this);
this.ds.un("datachanged", this.onDataChange, this);
this.ds.un("add", this.onAdd, this);
this.ds.un("remove", this.onRemove, this);
this.ds.un("update", this.onUpdate, this);
this.ds.un("clear", this.onClear, this);
}
if(ds){
ds.on("load", this.onLoad, this);
ds.on("datachanged", this.onDataChange, this);
ds.on("add", this.onAdd, this);
ds.on("remove", this.onRemove, this);
ds.on("update", this.onUpdate, this);
ds.on("clear", this.onClear, this);
}
this.ds = ds;
if(this.cm){
this.cm.un("configchange", this.onColConfigChange, this);
this.cm.un("widthchange", this.onColWidthChange, this);
this.cm.un("headerchange", this.onHeaderChange, this);
this.cm.un("hiddenchange", this.onHiddenChange, this);
this.cm.un("columnmoved", this.onColumnMove, this);
this.cm.un("columnlockchange", this.onColumnLock, this);
}
if(cm){
cm.on("configchange", this.onColConfigChange, this);
cm.on("widthchange", this.onColWidthChange, this);
cm.on("headerchange", this.onHeaderChange, this);
cm.on("hiddenchange", this.onHiddenChange, this);
cm.on("columnmoved", this.onColumnMove, this);
cm.on("columnlockchange", this.onColumnLock, this);
}
this.cm = cm;
},
// private
onDataChange : function(){
this.refresh();
this.updateHeaderSortState();
},
// private
onClear : function(){
this.refresh();
},
// private
onUpdate : function(ds, record){
this.refreshRow(record);
},
// private
onAdd : function(ds, records, index){
this.insertRows(ds, index, index + (records.length-1));
},
// private
onRemove : function(ds, record, index, isUpdate){
if(isUpdate !== true){
this.fireEvent("beforerowremoved", this, index, record);
}
this.removeRow(index);
if(isUpdate !== true){
this.processRows(index);
this.applyEmptyText();
this.fireEvent("rowremoved", this, index, record);
}
},
// private
onLoad : function(){
this.scrollToTop();
},
// private
onColWidthChange : function(cm, col, width){
this.updateColumnWidth(col, width);
},
// private
onHeaderChange : function(cm, col, text){
this.updateHeaders();
},
// private
onHiddenChange : function(cm, col, hidden){
this.updateColumnHidden(col, hidden);
},
// private
onColumnMove : function(cm, oldIndex, newIndex){
this.indexMap = null;
var s = this.getScrollState();
this.refresh(true);
this.restoreScroll(s);
this.afterMove(newIndex);
},
// private
onColConfigChange : function(){
delete this.lastViewWidth;
this.indexMap = null;
this.refresh(true);
},
/* -------------------- UI Events and Handlers ------------------------------ */
// private
initUI : function(grid){
grid.on("headerclick", this.onHeaderClick, this);
if(grid.trackMouseOver){
grid.on("mouseover", this.onRowOver, this);
grid.on("mouseout", this.onRowOut, this);
}
},
// private
initEvents : function(){
},
// private
onHeaderClick : function(g, index){
if(this.headersDisabled || !this.cm.isSortable(index)){
return;
}
g.stopEditing(true);
g.store.sort(this.cm.getDataIndex(index));
},
// private
onRowOver : function(e, t){
var row;
if((row = this.findRowIndex(t)) !== false){
this.addRowClass(row, "x-grid3-row-over");
}
},
// private
onRowOut : function(e, t){
var row;
if((row = this.findRowIndex(t)) !== false && row !== this.findRowIndex(e.getRelatedTarget())){
this.removeRowClass(row, "x-grid3-row-over");
}
},
// private
handleWheel : function(e){
e.stopPropagation();
},
// private
onRowSelect : function(row){
this.addRowClass(row, "x-grid3-row-selected");
},
// private
onRowDeselect : function(row){
this.removeRowClass(row, "x-grid3-row-selected");
},
// private
onCellSelect : function(row, col){
var cell = this.getCell(row, col);
if(cell){
this.fly(cell).addClass("x-grid3-cell-selected");
}
},
// private
onCellDeselect : function(row, col){
var cell = this.getCell(row, col);
if(cell){
this.fly(cell).removeClass("x-grid3-cell-selected");
}
},
// private
onColumnSplitterMoved : function(i, w){
this.userResized = true;
var cm = this.grid.colModel;
cm.setColumnWidth(i, w, true);
if(this.forceFit){
this.fitColumns(true, false, i);
this.updateAllColumnWidths();
}else{
this.updateColumnWidth(i, w);
}
this.grid.fireEvent("columnresize", i, w);
},
// private
handleHdMenuClick : function(item){
var index = this.hdCtxIndex;
var cm = this.cm, ds = this.ds;
switch(item.id){
case "asc":
ds.sort(cm.getDataIndex(index), "ASC");
break;
case "desc":
ds.sort(cm.getDataIndex(index), "DESC");
break;
default:
index = cm.getIndexById(item.id.substr(4));
if(index != -1){
if(item.checked && cm.getColumnsBy(this.isHideableColumn, this).length <= 1){
this.onDenyColumnHide();
return false;
}
cm.setHidden(index, item.checked);
}
}
return true;
},
// private
isHideableColumn : function(c){
return !c.hidden && !c.fixed;
},
// private
beforeColMenuShow : function(){
var cm = this.cm, colCount = cm.getColumnCount();
this.colMenu.removeAll();
for(var i = 0; i < colCount; i++){
if(cm.config[i].fixed !== true && cm.config[i].hideable !== false){
this.colMenu.add(new Ext.menu.CheckItem({
id: "col-"+cm.getColumnId(i),
text: cm.getColumnHeader(i),
checked: !cm.isHidden(i),
hideOnClick:false,
disabled: cm.config[i].hideable === false
}));
}
}
},
// private
handleHdDown : function(e, t){
if(Ext.fly(t).hasClass('x-grid3-hd-btn')){
e.stopEvent();
var hd = this.findHeaderCell(t);
Ext.fly(hd).addClass('x-grid3-hd-menu-open');
var index = this.getCellIndex(hd);
this.hdCtxIndex = index;
var ms = this.hmenu.items, cm = this.cm;
ms.get("asc").setDisabled(!cm.isSortable(index));
ms.get("desc").setDisabled(!cm.isSortable(index));
this.hmenu.on("hide", function(){
Ext.fly(hd).removeClass('x-grid3-hd-menu-open');
}, this, {single:true});
this.hmenu.show(t, "tl-bl?");
}
},
// private
handleHdOver : function(e, t){
var hd = this.findHeaderCell(t);
if(hd && !this.headersDisabled){
this.activeHd = hd;
this.activeHdIndex = this.getCellIndex(hd);
var fly = this.fly(hd);
this.activeHdRegion = fly.getRegion();
if(!this.cm.isMenuDisabled(this.activeHdIndex)){
fly.addClass("x-grid3-hd-over");
this.activeHdBtn = fly.child('.x-grid3-hd-btn');
if(this.activeHdBtn){
this.activeHdBtn.dom.style.height = (hd.firstChild.offsetHeight-1)+'px';
}
}
}
},
// private
handleHdMove : function(e, t){
if(this.activeHd && !this.headersDisabled){
var hw = this.splitHandleWidth || 5;
var r = this.activeHdRegion;
var x = e.getPageX();
var ss = this.activeHd.style;
if(x - r.left <= hw && this.cm.isResizable(this.activeHdIndex-1)){
ss.cursor = Ext.isAir ? 'move' : Ext.isSafari ? 'e-resize' : 'col-resize'; // col-resize not always supported
}else if(r.right - x <= (!this.activeHdBtn ? hw : 2) && this.cm.isResizable(this.activeHdIndex)){
ss.cursor = Ext.isAir ? 'move' : Ext.isSafari ? 'w-resize' : 'col-resize';
}else{
ss.cursor = '';
}
}
},
// private
handleHdOut : function(e, t){
var hd = this.findHeaderCell(t);
if(hd && (!Ext.isIE || !e.within(hd, true))){
this.activeHd = null;
this.fly(hd).removeClass("x-grid3-hd-over");
hd.style.cursor = '';
}
},
// private
hasRows : function(){
var fc = this.mainBody.dom.firstChild;
return fc && fc.className != 'x-grid-empty';
},
// back compat
bind : function(d, c){
this.initData(d, c);
}
});
// private
// This is a support class used internally by the Grid components
Ext.grid.GridView.SplitDragZone = function(grid, hd){
this.grid = grid;
this.view = grid.getView();
this.marker = this.view.resizeMarker;
this.proxy = this.view.resizeProxy;
Ext.grid.GridView.SplitDragZone.superclass.constructor.call(this, hd,
"gridSplitters" + this.grid.getGridEl().id, {
dragElId : Ext.id(this.proxy.dom), resizeFrame:false
});
this.scroll = false;
this.hw = this.view.splitHandleWidth || 5;
};
Ext.extend(Ext.grid.GridView.SplitDragZone, Ext.dd.DDProxy, {
b4StartDrag : function(x, y){
this.view.headersDisabled = true;
var h = this.view.mainWrap.getHeight();
this.marker.setHeight(h);
this.marker.show();
this.marker.alignTo(this.view.getHeaderCell(this.cellIndex), 'tl-tl', [-2, 0]);
this.proxy.setHeight(h);
var w = this.cm.getColumnWidth(this.cellIndex);
var minw = Math.max(w-this.grid.minColumnWidth, 0);
this.resetConstraints();
this.setXConstraint(minw, 1000);
this.setYConstraint(0, 0);
this.minX = x - minw;
this.maxX = x + 1000;
this.startPos = x;
Ext.dd.DDProxy.prototype.b4StartDrag.call(this, x, y);
},
handleMouseDown : function(e){
var t = this.view.findHeaderCell(e.getTarget());
if(t){
var xy = this.view.fly(t).getXY(), x = xy[0], y = xy[1];
var exy = e.getXY(), ex = exy[0], ey = exy[1];
var w = t.offsetWidth, adjust = false;
if((ex - x) <= this.hw){
adjust = -1;
}else if((x+w) - ex <= this.hw){
adjust = 0;
}
if(adjust !== false){
this.cm = this.grid.colModel;
var ci = this.view.getCellIndex(t);
if(adjust == -1){
if (ci + adjust < 0) {
return;
}
while(this.cm.isHidden(ci+adjust)){
--adjust;
if(ci+adjust < 0){
return;
}
}
}
this.cellIndex = ci+adjust;
this.split = t.dom;
if(this.cm.isResizable(this.cellIndex) && !this.cm.isFixed(this.cellIndex)){
Ext.grid.GridView.SplitDragZone.superclass.handleMouseDown.apply(this, arguments);
}
}else if(this.view.columnDrag){
this.view.columnDrag.callHandleMouseDown(e);
}
}
},
endDrag : function(e){
this.marker.hide();
var v = this.view;
var endX = Math.max(this.minX, e.getPageX());
var diff = endX - this.startPos;
v.onColumnSplitterMoved(this.cellIndex, this.cm.getColumnWidth(this.cellIndex)+diff);
setTimeout(function(){
v.headersDisabled = false;
}, 50);
},
autoOffset : function(){
this.setDelta(0,0);
}
});