/** * Plugin to add header resizing functionality to a HeaderContainer. * Always resizing header to the left of the splitter you are resizing. */Ext.define('Ext.grid.plugin.HeaderResizer', { extend: 'Ext.plugin.Abstract', requires: [ 'Ext.dd.DragTracker', 'Ext.util.Region' ], alias: 'plugin.gridheaderresizer', disabled: false, config: { /** * @cfg {Boolean} dynamic * True to resize on the fly rather than using a proxy marker. * @accessor */ dynamic: false }, colHeaderCls: Ext.baseCSSPrefix + 'column-header', minColWidth: 40, maxColWidth: 1000, eResizeCursor: 'col-resize', init: function(headerCt) { var me = this; me.headerCt = headerCt; headerCt.on('render', me.afterHeaderRender, me, {single: me}); // Pull minColWidth from the minWidth in the Column prototype if (!me.minColWidth) { me.self.prototype.minColWidth = Ext.grid.column.Column.prototype.minWidth; } }, /** * @private * Component calls destroy on all its plugins at destroy time. */ destroy: function() { var tracker = this.tracker; if (tracker) { tracker.destroy(); this.tracker = null; } }, afterHeaderRender: function() { var me = this, headerCt = me.headerCt, el = headerCt.el; headerCt.mon(el, 'mousemove', me.onHeaderCtMouseMove, me); me.markerOwner = me.ownerGrid = me.headerCt.up('tablepanel').ownerGrid; me.tracker = new Ext.dd.DragTracker({ disabled: me.disabled, onBeforeStart: me.onBeforeStart.bind(me), onStart: me.onStart.bind(me), onDrag: me.onDrag.bind(me), onEnd: me.onEnd.bind(me), tolerance: 3, autoStart: 300, el: el }); }, // As we mouse over individual headers, change the cursor to indicate // that resizing is available, and cache the resize target header for use // if/when they mousedown. onHeaderCtMouseMove: function(e) { var me = this; if (me.headerCt.dragging || me.disabled) { if (me.activeHd) { me.activeHd.el.dom.style.cursor = ''; delete me.activeHd; } } else if (e.pointerType !== 'touch') { me.findActiveHeader(e); } }, findActiveHeader: function(e) { var me = this, headerCt = me.headerCt, headerEl = e.getTarget('.' + me.colHeaderCls, headerCt.el, true), ownerGrid = me.ownerGrid, ownerLockable = ownerGrid.ownerLockable, overHeader, resizeHeader, headers, header; me.activeHd = null; if (headerEl) { overHeader = Ext.getCmp(headerEl.id); // If near the right edge, we're resizing the column we are over. if (overHeader.isAtEndEdge(e)) { // Cannot resize the only column in a forceFit grid. if (headerCt.visibleColumnManager.getColumns().length === 1 && headerCt.forceFit) { return; } resizeHeader = overHeader; } // Else... we might be near the right edge else if (overHeader.isAtStartEdge(e)) { // Extract previous visible leaf header headers = headerCt.visibleColumnManager.getColumns(); header = overHeader.isGroupHeader ? overHeader.getGridColumns()[0] : overHeader; resizeHeader = headers[Ext.Array.indexOf(headers, header) - 1]; // If there wasn't one, and we are the normal side of a lockable assembly then // use the last visible leaf header of the locked side. if (!resizeHeader && ownerLockable && !ownerGrid.isLocked) { headers = ownerLockable.lockedGrid.headerCt.visibleColumnManager.getColumns(); resizeHeader = headers[headers.length - 1]; } } // We *are* resizing if (resizeHeader) { // If we're attempting to resize a group header, that cannot be resized, // so find its last visible leaf header; Group headers are sized // by the size of their child headers. if (resizeHeader.isGroupHeader) { headers = resizeHeader.getGridColumns(); resizeHeader = headers[headers.length - 1]; } // Check if the header is resizable. Continue checking the old "fixed" property, bug also // check whether the resizable property is set to false. if (resizeHeader && !(resizeHeader.fixed || (resizeHeader.resizable === false))) { me.activeHd = resizeHeader; overHeader.el.dom.style.cursor = me.eResizeCursor; if (overHeader.triggerEl) { overHeader.triggerEl.dom.style.cursor = me.eResizeCursor; } } // reset } else { overHeader.el.dom.style.cursor = ''; if (overHeader.triggerEl) { overHeader.triggerEl.dom.style.cursor = ''; } } } return me.activeHd; }, // only start when there is an activeHd onBeforeStart : function(e) { var me = this; // If on touch, we will have received no mouseover, so we have to // decide whether the touchstart is in a resize zone, and if so, which header is to be sized. // Cache any activeHd because it will be cleared on subsequent mousemoves outside the resize zone. me.dragHd = me.activeHd || e.pointerType === 'touch' && me.findActiveHeader(e); if (me.dragHd && !me.headerCt.dragging) { // Calculate how far off the right marker line the mouse pointer is. // This will be the xDelta during the following drag operation. me.xDelta = me.dragHd.getX() + me.dragHd.getWidth() - me.tracker.getXY()[0]; me.tracker.constrainTo = me.getConstrainRegion(); return true; } else { me.headerCt.dragging = false; return false; } }, // get the region to constrain to, takes into account max and min col widths getConstrainRegion: function() { var me = this, dragHdEl = me.dragHd.el, nextHd, ownerGrid = me.ownerGrid, widthModel = ownerGrid.getSizeModel().width, maxColWidth = widthModel.shrinkWrap ? me.headerCt.getWidth() - me.headerCt.visibleColumnManager.getColumns().length * me.minColWidth : me.maxColWidth, result; // If forceFit, then right constraint is based upon not being able to force the next header // beyond the minColWidth. If there is no next header, then the header may not be expanded. if (me.headerCt.forceFit) { nextHd = me.dragHd.nextNode('gridcolumn:not([hidden]):not([isGroupHeader])'); if (nextHd && me.headerInSameGrid(nextHd)) { maxColWidth = dragHdEl.getWidth() + (nextHd.getWidth() - me.minColWidth); } } // If resize header is in a locked grid, the maxWidth has to be 30px within the available locking grid's width // But only if the locked grid shrinkwraps its columns else if (ownerGrid.isLocked && widthModel.shrinkWrap) { maxColWidth = me.dragHd.up('[scrollerOwner]').getTargetEl().getWidth(true) - ownerGrid.getWidth() - (ownerGrid.ownerLockable.normalGrid.visibleColumnManager.getColumns().length * me.minColWidth + Ext.getScrollbarSize().width); } result = me.adjustConstrainRegion( dragHdEl.getRegion(), 0, 0, 0, me.minColWidth ); result.right = dragHdEl.getX() + maxColWidth; return result; }, // initialize the left and right hand side markers around // the header that we are resizing onStart: function(e) { var me = this, dragHd = me.dragHd, width = dragHd.el.getWidth(), headerCt = dragHd.getRootHeaderCt(), x, y, markerOwner, lhsMarker, rhsMarker, markerHeight; me.headerCt.dragging = true; me.origWidth = width; // setup marker proxies if (!me.dynamic) { markerOwner = me.markerOwner; // https://sencha.jira.com/browse/EXTJSIV-11299 // In Neptune (and other themes with wide frame borders), resize handles are embedded in borders, // *outside* of the outer element's content area, therefore the outer element is set to overflow:visible. // During column resize, we should not see the resize markers outside the grid, so set to overflow:hidden. if (markerOwner.frame && markerOwner.resizable) { me.gridOverflowSetting = markerOwner.el.dom.style.overflow; markerOwner.el.dom.style.overflow = 'hidden'; } x = me.getLeftMarkerX(markerOwner); lhsMarker = markerOwner.getLhsMarker(); rhsMarker = markerOwner.getRhsMarker(); markerHeight = me.ownerGrid.body.getHeight() + headerCt.getHeight(); y = headerCt.getOffsetsTo(markerOwner)[1] - markerOwner.el.getBorderWidth('t'); // Ensure the markers have the correct cursor in case the cursor is *exactly* over // this single pixel line, not just within the active resize zone lhsMarker.dom.style.cursor = me.eResizeCursor; rhsMarker.dom.style.cursor = me.eResizeCursor; lhsMarker.setLocalY(y); rhsMarker.setLocalY(y); lhsMarker.setHeight(markerHeight); rhsMarker.setHeight(markerHeight); me.setMarkerX(lhsMarker, x); me.setMarkerX(rhsMarker, x + width); } }, // synchronize the rhsMarker with the mouse movement onDrag: function(e){ var me = this; if (me.dynamic) { me.doResize(); } else { me.setMarkerX(me.getMovingMarker(me.markerOwner), me.calculateDragX(me.markerOwner)); } }, getMovingMarker: function(markerOwner){ return markerOwner.getRhsMarker(); }, onEnd: function(e) { var me = this, markerOwner = me.markerOwner; me.headerCt.dragging = false; if (me.dragHd) { if (!me.dynamic) { // If we had saved the gridOverflowSetting, restore it if ('gridOverflowSetting' in me) { markerOwner.el.dom.style.overflow = me.gridOverflowSetting; } // hide markers me.setMarkerX(markerOwner.getLhsMarker(), -9999); me.setMarkerX(markerOwner.getRhsMarker(), -9999); } me.doResize(); // On mouseup (a real mouseup), we must be ready to start dragging again immediately - // Leave the activeHd active. if (e.pointerType !== 'touch') { me.dragHd = null; me.activeHd.el.dom.style.cursor = me.eResizeCursor; } else { me.dragHd = me.activeHd = null; } } }, doResize: function() { var me = this, dragHd = me.dragHd, nextHd, offset = me.tracker.getOffset('point'); // Only resize if we have dragged any distance in the X dimension... if (dragHd && offset[0]) { // resize the dragHd if (dragHd.flex) { delete dragHd.flex; } Ext.suspendLayouts(); // Set the new column width. // Adjusted for the offset from the actual column border that the mousedownb too place at. me.adjustColumnWidth(offset[0] - me.xDelta); // In the case of forceFit, change the following Header width. // Constraining so that neither neighbour can be sized to below minWidth is handled in getConstrainRegion if (me.headerCt.forceFit) { nextHd = dragHd.nextNode('gridcolumn:not([hidden]):not([isGroupHeader])'); if (nextHd && !me.headerInSameGrid(nextHd)) { nextHd = null; } if (nextHd) { delete nextHd.flex; nextHd.setWidth(nextHd.getWidth() - offset[0]); } } // Apply the two width changes by laying out the owning HeaderContainer Ext.resumeLayouts(true); } }, // nextNode can traverse out of this grid, possibly to others on the page, so limit it here headerInSameGrid: function(header) { var grid = this.dragHd.up('tablepanel'); return !!header.up(grid); }, disable: function() { var tracker = this.tracker; this.disabled = true; if (tracker) { tracker.disable(); } }, enable: function() { var tracker = this.tracker; this.disabled = false; if (tracker) { tracker.enable(); } }, calculateDragX: function(markerOwner) { return this.tracker.getXY('point')[0] + this.xDelta - markerOwner.getX() - markerOwner.el.getBorderWidth('l'); }, getLeftMarkerX: function(markerOwner) { return this.dragHd.getX() - markerOwner.getX() - markerOwner.el.getBorderWidth('l') - 1; }, setMarkerX: function(marker, x) { marker.setLocalX(x); }, adjustConstrainRegion: function(region, t, r, b, l) { return region.adjust(t, r, b, l); }, adjustColumnWidth: function(offsetX) { this.dragHd.setWidth(this.origWidth + offsetX); }});