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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 | define([ 'dojo/_base/declare', 'dojo/_base/array', 'dojo/on', 'dojo/query', 'dojo/_base/lang', 'dojo/dom', 'dojo/dom-construct', 'dojo/dom-geometry', 'dojo/has', '../util/misc', 'dojo/_base/html' ], function (declare, arrayUtil, listen, query, lang, dom, domConstruct, geom, has, miscUtil) { function addRowSpan(table, span, startRow, column, id) { // loop through the rows of the table and add this column's id to // the rows' column for (var i = 1; i < span; i++) { table[startRow + i][column] = id; } } function subRowAssoc(subRows) { // Take a sub-row structure and output an object with key=>value pairs // The keys will be the column id's; the values will be the first-row column // that column's resizer should be associated with. var i = subRows.length, l = i, numCols = arrayUtil.filter(subRows[0], function (column) { return !column.hidden; }).length, table = new Array(i); // create table-like structure in an array so it can be populated // with row-spans and col-spans while (i--) { table[i] = new Array(numCols); } var associations = {}; for (i = 0; i < l; i++) { var row = table[i], subRow = subRows[i]; // j: counter for table columns // js: counter for subrow structure columns for (var j = 0, js = 0; j < numCols; j++) { var cell = subRow[js], k; // if something already exists in the table (row-span), skip this // spot and go to the next if (typeof row[j] !== 'undefined') { continue; } row[j] = cell.id; if (cell.rowSpan && cell.rowSpan > 1) { addRowSpan(table, cell.rowSpan, i, j, cell.id); } // colSpans are only applicable in the second or greater rows // and only if the colSpan is greater than 1 if (i > 0 && cell.colSpan && cell.colSpan > 1) { for (k = 1; k < cell.colSpan; k++) { // increment j and assign the id since this is a span row[++j] = cell.id; if (cell.rowSpan && cell.rowSpan > 1) { addRowSpan(table, cell.rowSpan, i, j, cell.id); } } } associations[cell.id] = subRows[0][j].id; js++; } } return associations; } function resizeColumnWidth(grid, colId, width, parentType, doResize) { // don't react to widths <= 0, e.g. for hidden columns if (width <= 0) { return; } var column = grid.columns[colId], event, rule; if (!column) { return; } event = { grid: grid, columnId: colId, width: width, bubbles: true, cancelable: true }; if (parentType) { event.parentType = parentType; } if (!grid._resizedColumns || listen.emit(grid.headerNode, 'dgrid-columnresize', event)) { // Update width on column object, then convert value for CSS if (width === 'auto') { delete column.width; } else { column.width = width; width += 'px'; } rule = grid._columnSizes[colId]; if (rule) { // Modify existing, rather than deleting + adding rule.set('width', width); } else { // Use miscUtil function directly, since we clean these up ourselves anyway rule = miscUtil.addCssRule('#' + miscUtil.escapeCssIdentifier(grid.domNode.id) + ' .dgrid-column-' + miscUtil.escapeCssIdentifier(colId, '-'), 'width: ' + width + ';'); } // keep a reference for future removal grid._columnSizes[colId] = rule; if (doResize !== false) { grid.resize(); } return true; } } // Functions for shared resizer node var resizerNode, // DOM node for resize indicator, reused between instances resizerGuardNode, // DOM node to guard against clicks registering on header cells (and inducing sort) resizableCount = 0; // Number of ColumnResizer-enabled grid instances var resizer = { // This object contains functions for manipulating the shared resizerNode create: function () { resizerNode = domConstruct.create('div', { className: 'dgrid-column-resizer' }); resizerGuardNode = domConstruct.create('div', { className: 'dgrid-resize-guard' }); }, destroy: function () { domConstruct.destroy(resizerNode); domConstruct.destroy(resizerGuardNode); resizerNode = resizerGuardNode = null; }, show: function (grid) { var pos = geom.position(grid.domNode, true); resizerNode.style.top = pos.y + 'px'; resizerNode.style.height = pos.h + 'px'; document.body.appendChild(resizerNode); grid.domNode.appendChild(resizerGuardNode); }, move: function (x) { resizerNode.style.left = x + 'px'; }, hide: function () { resizerNode.parentNode.removeChild(resizerNode); resizerGuardNode.parentNode.removeChild(resizerGuardNode); } }; return declare(null, { resizeNode: null, // minWidth: Number // Minimum column width, in px. minWidth: 40, // adjustLastColumn: Boolean // If true, adjusts the last column's width to "auto" at times where the // browser would otherwise stretch all columns to span the grid. adjustLastColumn: true, _resizedColumns: false, // flag indicating if resizer has converted column widths to px buildRendering: function () { this.inherited(arguments); // Create resizerNode when first grid w/ ColumnResizer is created if (!resizableCount) { resizer.create(); } resizableCount++; }, destroy: function () { this.inherited(arguments); // Remove any applied column size styles since we're tracking them directly for (var name in this._columnSizes) { this._columnSizes[name].remove(); } // If this is the last grid on the page with ColumnResizer, destroy the // shared resizerNode if (!--resizableCount) { resizer.destroy(); } }, resizeColumnWidth: function (colId, width) { // Summary: // calls grid's styleColumn function to add a style for the column // colId: String // column id // width: Integer // new width of the column return resizeColumnWidth(this, colId, width); }, configStructure: function () { var oldSizes = this._oldColumnSizes = lang.mixin({}, this._columnSizes), // shallow clone k; this._resizedColumns = false; this._columnSizes = {}; this.inherited(arguments); // Remove old column styles that are no longer relevant; this is specifically // done *after* calling inherited so that _columnSizes will contain keys // for all columns in the new structure that were assigned widths. for (k in oldSizes) { if (!(k in this._columnSizes)) { oldSizes[k].remove(); } } delete this._oldColumnSizes; }, _configColumn: function (column) { this.inherited(arguments); var colId = column.id, rule; if ('width' in column) { // Update or add a style rule for the specified width if ((rule = this._oldColumnSizes[colId])) { rule.set('width', column.width + 'px'); } else { rule = miscUtil.addCssRule('#' + miscUtil.escapeCssIdentifier(this.domNode.id) + ' .dgrid-column-' + miscUtil.escapeCssIdentifier(colId, '-'), 'width: ' + column.width + 'px;'); } this._columnSizes[colId] = rule; } }, renderHeader: function () { this.inherited(arguments); var grid = this; var assoc; if (this.columnSets && this.columnSets.length) { var csi = this.columnSets.length; while (csi--) { assoc = lang.mixin(assoc || {}, subRowAssoc(this.columnSets[csi])); } } else if (this.subRows && this.subRows.length > 1) { assoc = subRowAssoc(this.subRows); } var colNodes = query('.dgrid-cell', grid.headerNode), i = colNodes.length; while (i--) { var colNode = colNodes[i], id = colNode.columnId, col = grid.columns[id], childNodes = colNode.childNodes, resizeHandle; if (!col || col.resizable === false) { continue; } var headerTextNode = domConstruct.create('div', { className: 'dgrid-resize-header-container' }); colNode.contents = headerTextNode; // move all the children to the header text node while (childNodes.length > 0) { headerTextNode.appendChild(childNodes[0]); } resizeHandle = domConstruct.create('div', { className: 'dgrid-resize-handle resizeNode-' + miscUtil.escapeCssIdentifier(id, '-') }, headerTextNode); colNode.appendChild(headerTextNode); resizeHandle.columnId = assoc && assoc[id] || id; } if (!grid.mouseMoveListen) { // establish listeners for initiating, dragging, and finishing resize listen(grid.headerNode, '.dgrid-resize-handle:mousedown' + (has('touch') ? ',.dgrid-resize-handle:touchstart' : ''), function (e) { grid._resizeMouseDown(e, this); grid.mouseMoveListen.resume(); grid.mouseUpListen.resume(); } ); grid._listeners.push(grid.mouseMoveListen = listen.pausable(document, 'mousemove' + (has('touch') ? ',touchmove' : ''), miscUtil.throttleDelayed(function (e) { grid._updateResizerPosition(e); }) )); grid._listeners.push(grid.mouseUpListen = listen.pausable(document, 'mouseup' + (has('touch') ? ',touchend' : ''), function (e) { grid._resizeMouseUp(e); grid.mouseMoveListen.pause(); grid.mouseUpListen.pause(); } )); // initially pause the move/up listeners until a drag happens grid.mouseMoveListen.pause(); grid.mouseUpListen.pause(); } }, // end renderHeader _resizeMouseDown: function (e, target) { // Summary: // called when mouse button is pressed on the header // e: Object // mousedown event object // preventDefault actually seems to be enough to prevent browser selection // in all but IE < 9. setSelectable works for those. e.preventDefault(); dom.setSelectable(this.domNode, false); this._startX = this._getResizeMouseLocation(e); //position of the target this._targetCell = query('.dgrid-column-' + miscUtil.escapeCssIdentifier(target.columnId, '-'), this.headerNode)[0]; // Show resizerNode after initializing its x position this._updateResizerPosition(e); resizer.show(this); }, _resizeMouseUp: function (e) { // Summary: // called when mouse button is released // e: Object // mouseup event object var columnSizes = this._columnSizes, colNodes, colWidths, gridWidth; if (this.adjustLastColumn) { // For some reason, total column width needs to be 1 less than this gridWidth = this.headerNode.clientWidth - 1; } //This is used to set all the column widths to a static size if (!this._resizedColumns) { colNodes = query('.dgrid-cell', this.headerNode); if (this.columnSets && this.columnSets.length) { colNodes = colNodes.filter(function (node) { var idx = node.columnId.split('-'); return idx[0] === '0' && !(node.columnId in columnSizes); }); } else if (this.subRows && this.subRows.length > 1) { colNodes = colNodes.filter(function (node) { return node.columnId.charAt(0) === '0' && !(node.columnId in columnSizes); }); } // Get a set of sizes before we start mutating, to avoid // weird disproportionate measures if the grid has set // column widths, but no full grid width set colWidths = colNodes.map(function (colNode) { return colNode.offsetWidth; }); // Set a baseline size for each column based on // its original measure colNodes.forEach(function (colNode, i) { resizeColumnWidth(this, colNode.columnId, colWidths[i], null, false); }, this); this._resizedColumns = true; } dom.setSelectable(this.domNode, true); var cell = this._targetCell, delta = this._getResizeMouseLocation(e) - this._startX, //final change in position of resizer newWidth = cell.offsetWidth + delta, //the new width after resize obj = this._getResizedColumnWidths(),//get current total column widths before resize totalWidth = obj.totalWidth, lastCol = obj.lastColId, lastColWidth = query('.dgrid-column-' + miscUtil.escapeCssIdentifier(lastCol, '-'), this.headerNode)[0].offsetWidth; if (newWidth < this.minWidth) { //enforce minimum widths newWidth = this.minWidth; } if (resizeColumnWidth(this, cell.columnId, newWidth, e.type)) { if (cell.columnId !== lastCol && this.adjustLastColumn) { if (totalWidth + delta < gridWidth) { //need to set last column's width to auto resizeColumnWidth(this, lastCol, 'auto', e.type); } else if (lastColWidth - delta <= this.minWidth) { //change last col width back to px, unless it is the last column itself being resized... resizeColumnWidth(this, lastCol, this.minWidth, e.type); } } } resizer.hide(); // Clean up after the resize operation delete this._startX; delete this._targetCell; }, _updateResizerPosition: function (e) { // Summary: // updates position of resizer bar as mouse moves // e: Object // mousemove event object if (!this._targetCell) { return; // Release event was already processed } var mousePos = this._getResizeMouseLocation(e), delta = mousePos - this._startX, //change from where user clicked to where they drag width = this._targetCell.offsetWidth, left = mousePos; if (width + delta < this.minWidth) { left = this._startX - (width - this.minWidth); } resizer.move(left); }, _getResizeMouseLocation: function (e) { //Summary: // returns position of mouse relative to the left edge // e: event object // mouse move event object var posX = 0; if (e.pageX) { posX = e.pageX; } else if (e.clientX) { posX = e.clientX + document.body.scrollLeft + document.documentElement.scrollLeft; } return posX; }, _getResizedColumnWidths: function () { //Summary: // returns object containing new column width and column id var totalWidth = 0, colNodes = query( (this.columnSets ? '.dgrid-column-set-cell ' : '') + 'tr:first-child .dgrid-cell', this.headerNode); var i = colNodes.length; if (!i) { return {}; } var lastColId = colNodes[i - 1].columnId; while (i--) { totalWidth += colNodes[i].offsetWidth; } return {totalWidth: totalWidth, lastColId: lastColId}; } }); }); |