mirror of
https://github.com/EGroupware/egroupware.git
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231 lines
6.7 KiB
TypeScript
231 lines
6.7 KiB
TypeScript
/**
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* EGroupware eTemplate2 - Functions which allow resizing of table headers
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*
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* @license http://opensource.org/licenses/gpl-license.php GPL - GNU General Public License
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* @package etemplate
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* @subpackage dataview
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* @link http://www.egroupware.org
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* @author Andreas Stöckel
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* @copyright Stylite 2011
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* @version $Id$
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*/
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/**
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* This set of functions is currently only supporting resizing in ew-direction
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*/
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export class et2_dataview_view_resizable
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{
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// Define some constants
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public static readonly RESIZE_BORDER = 12;
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public static readonly RESIZE_MIN_WIDTH = 25;
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public static readonly RESIZE_ADD = 2; // Used to ensure mouse is under the resize element after resizing has finished
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public static helper : JQuery = null;
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public static overlay : JQuery = null;
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public static didResize = false;
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public static resizeWidth = 0;
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// In resize region returns whether the mouse is currently in the
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// "resizeRegion"
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public static inResizeRegion(_x, _elem)
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{
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var ol = _x - _elem.offset().left;
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return (ol > (_elem.outerWidth(true) - et2_dataview_view_resizable.RESIZE_BORDER));
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}
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public static startResize(_outerElem, _elem, _callback, _column)
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{
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if (this.overlay == null || this.helper == null)
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{
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// Prevent text selection
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// FireFox handles highlight prevention (text selection) different than other browsers
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if (typeof _elem[0].style.MozUserSelect !="undefined")
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{
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_elem[0].style.MozUserSelect = "none";
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}
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else
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{
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_elem[0].onselectstart = function() {
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return false;
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};
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}
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// Indicate resizing is in progress
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jQuery(_outerElem).addClass('egwResizing');
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// Reset the "didResize" flag
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this.didResize = false;
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// Create the resize helper
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var left = _elem.offset().left;
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this.helper = jQuery(document.createElement("div"))
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.addClass("egwResizeHelper")
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.appendTo("body")
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.css("top", _elem.offset().top + "px")
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.css("left", left + "px")
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.css("height", _outerElem.outerHeight(true) + "px");
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// Create the overlay which will be catching the mouse movements
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this.overlay = jQuery(document.createElement("div"))
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.addClass("egwResizeOverlay")
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.bind("mousemove", function(e) {
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this.didResize = true;
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this.resizeWidth = Math.max(e.pageX - left + et2_dataview_view_resizable.RESIZE_ADD,
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_column && _column.minWidth ? _column.minWidth : et2_dataview_view_resizable.RESIZE_MIN_WIDTH
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);
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this.helper.css("width", this.resizeWidth + "px");
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}.bind(this))
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.bind("mouseup", function() {
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this.stopResize(_outerElem);
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// Reset text selection
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_elem[0].onselectstart = null;
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// Call the callback if the user actually performed a resize
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if (this.didResize)
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{
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_callback(this.resizeWidth);
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}
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}.bind(this))
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.appendTo("body");
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}
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}
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public static stopResize(_outerElem)
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{
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jQuery(_outerElem).removeClass('egwResizing');
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if (this.helper != null)
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{
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this.helper.remove();
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this.helper = null;
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}
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if (this.overlay != null)
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{
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this.overlay.remove();
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this.overlay = null;
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}
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}
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public static makeResizeable = function(_elem, _callback, _context)
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{
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// Get the table surrounding the given element - this element is used to
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// align the helper properly
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var outerTable = _elem.closest("table");
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// Bind the "mousemove" event in the "resize" namespace
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_elem.bind("mousemove.resize", function(e) {
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var stopResize = false;
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// Stop switch to resize cursor if the mouse position
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// is more intended for scrollbar not the resize edge
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// 8pixel is an arbitary number for scrolbar area
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if (e.target.clientHeight < e.target.scrollHeight && e.target.offsetWidth - e.offsetX <= 8)
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{
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stopResize = true;
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}
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_elem.css("cursor", et2_dataview_view_resizable.inResizeRegion(e.pageX, _elem) && !stopResize? "ew-resize" : "auto");
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});
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// Bind the "mousedown" event in the "resize" namespace
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_elem.bind("mousedown.resize", function(e) {
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var stopResize = false;
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// Stop resize if the mouse position is more intended
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// for scrollbar not the resize edge
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// 8pixel is an arbitary number for scrolbar area
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if (e.target.clientHeight < e.target.scrollHeight && e.target.offsetWidth - e.offsetX <= 8)
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{
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stopResize = true;
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}
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// Do not triger startResize if clicked element is select-tag, as it may causes conflict in some browsers
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if (et2_dataview_view_resizable.inResizeRegion(e.pageX, _elem) && e.target.tagName != 'SELECT' && !stopResize)
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{
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// Start the resizing
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et2_dataview_view_resizable.startResize(outerTable, _elem, function(_w) {
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_callback.call(_context, _w);
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}, _context);
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}
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});
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// Bind double click for auto-size
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_elem.dblclick(function(e) {
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// Just show message for relative width columns
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if(_context && _context.relativeWidth)
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{
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return egw.message(egw.lang('You tried to automatically size a flex column, which always takes the rest of the space','info'));
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}
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// Find column class - it's usually the first one
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var col_class = '';
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for(var i = 0; i < this.classList.length; i++)
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{
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if(this.classList[i].indexOf('gridCont') === 0)
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{
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col_class = this.classList[i];
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break;
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}
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}
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// Find widest part, including header
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var column = jQuery(this);
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column.children().css('width','auto');
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var max_width = column.children().children().innerWidth();
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var padding = column.outerWidth(true) - max_width;
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var resize = jQuery(this).closest('.egwGridView_outer')
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.find('tbody td.'+col_class+'> div:first-child')
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.add(column.children())
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// Set column width to auto to allow space for everything to flow
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.css('width','auto');
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resize.children()
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.css({'white-space':'nowrap'})
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.each(function()
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{
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var col = jQuery(this);
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// Find visible (text) children and force them to not wrap
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var children = col.find('span:visible, time:visible, label:visible')
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.css({'white-space':'nowrap'});
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this.offsetWidth;
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children.each(function()
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{
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var child = jQuery(this);
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this.offsetWidth;
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if(child.outerWidth() > max_width)
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{
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max_width = child.outerWidth();
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}
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window.getComputedStyle(this).width;
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});
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this.offsetWidth;
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if(col.innerWidth() > max_width)
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{
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max_width = col.innerWidth();
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}
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// Reset children
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children.css('white-space','');
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children.css('display','');
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}
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)
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.css({'white-space':''});
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// Reset column
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column.children().css('width','');
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resize.css('width','');
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_callback.call(_context, max_width+padding);
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});
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};
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public static et2_dataview_resetResizeable = function(_elem)
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{
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// Remove all events in the ".resize" namespace from the element
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_elem.unbind(".resize");
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}
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}
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