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https://github.com/Jermolene/TiddlyWiki5
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be06257430
Belatedly realised that the design would be clearer without these two separate concepts being conflated into a single widget. As a result of this change, any other widget or template that generates transclude widgets has needed adjustment.
110 lines
2.6 KiB
JavaScript
110 lines
2.6 KiB
JavaScript
/*\
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title: $:/core/modules/widgets/grid.js
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type: application/javascript
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module-type: widget
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The grid widget.
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This example renders a table made up of tiddlers titled `MySheet_A_1`, `MySheet_A_2`, `MySheet_A_3`, ... , `MySheet_B_1`, `MySheet_B_2`, `MySheet_B_3` etc.
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```
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<$grid prefix="MySheet" rows=20 cols=20/>
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```
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\*/
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(function(){
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/*jslint node: true, browser: true */
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/*global $tw: false */
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"use strict";
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var GridWidget = function(renderer) {
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// Save state
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this.renderer = renderer;
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// Generate widget elements
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this.generate();
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};
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GridWidget.prototype.generate = function() {
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// Get our attributes
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this.prefix = this.renderer.getAttribute("prefix","Grid");
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this.rows = parseInt(this.renderer.getAttribute("rows","10"),10);
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this.cols = parseInt(this.renderer.getAttribute("cols","10"),10);
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this["class"] = this.renderer.getAttribute("class");
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// Set up the classes
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var classes = ["tw-grid-frame"];
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if(this["class"]) {
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$tw.utils.pushTop(classes,this["class"]);
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}
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// Create the grid table element
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this.tag = "div";
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this.attributes = {
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"class": classes.join(" ")
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};
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this.children = this.renderer.renderTree.createRenderers(this.renderer,this.generateTable());
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};
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GridWidget.prototype.generateTable = function() {
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var rows = [];
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for(var row=0; row<this.rows; row++) {
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var tr = {
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type: "element",
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tag: "tr",
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children: []
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};
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rows.push(tr);
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for(var col=0; col<this.cols; col++) {
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var td = {
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type: "element",
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tag: "td",
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children: [{
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type: "element",
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tag: "$transclude",
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attributes: {
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title: {type: "string", value: this.getTableCellTitle(col,row)}
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}
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}]
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};
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tr.children.push(td);
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}
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}
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return [{
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type: "element",
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tag: "table",
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children: [{
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type: "element",
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tag: "tbody",
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children: rows
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}]
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}];
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};
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GridWidget.prototype.getTableCellTitle = function(col,row) {
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var c = String.fromCharCode(col % 26 + "A".charCodeAt(0));
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col = Math.floor(col/26);
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while(col>0) {
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c = String.fromCharCode(col % 26 + "A".charCodeAt(0) - 1) + c;
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col = Math.floor(col/26);
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}
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return this.prefix + "_" + c + "_" + (row + 1);
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};
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GridWidget.prototype.postRenderInDom = function() {
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};
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GridWidget.prototype.refreshInDom = function(changedAttributes,changedTiddlers) {
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// Reexecute the widget if any of our attributes have changed
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if(true) {
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// Regenerate and rerender the widget and replace the existing DOM node
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this.generate();
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var oldDomNode = this.renderer.domNode,
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newDomNode = this.renderer.renderInDom();
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oldDomNode.parentNode.replaceChild(newDomNode,oldDomNode);
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} else {
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}
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};
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exports.grid = GridWidget;
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})();
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