large scale refactoring

2018-11-25 03:17:00 +01:00
parent ade3e1949d
commit 9c0da271eb
154 changed files with 1769 additions and 1199 deletions
--- a/examples_all/drawing/index.html
+++ b/examples_all/drawing/index.html
@@ -0,0 +1,20 @@
+<!DOCTYPE html>
+<html>
+<body>
+  <style>
+    path {
+      fill: none;
+      stroke: blue;
+      stroke-width: 1px;
+      stroke-linejoin: round;
+      stroke-linecap: round;
+    }
+  </style>
+  <button type="button" id="clearDrawingCanvas">Clear Drawing</button>
+  <svg id="drawingCanvas" viewbox="0 0 100 100" width="100%"></svg>
+  <script src="../../y.js"></script>
+  <script src='../../../y-websockets-client/y-websockets-client.js'></script>
+  <script src="../bower_components/d3/d3.min.js"></script>
+  <script src="./index.js"></script>
+</body>
+</html>
--- a/examples_all/drawing/index.js
+++ b/examples_all/drawing/index.js
@@ -0,0 +1,74 @@
+/* globals Y, d3 */
+
+let y = new Y('drawing-example', {
+  connector: {
+    name: 'websockets-client',
+    url: 'http://127.0.0.1:1234'
+  }
+})
+
+window.yDrawing = y
+var drawing = y.define('drawing', Y.Array)
+var renderPath = d3.svg.line()
+  .x(function (d) { return d[0] })
+  .y(function (d) { return d[1] })
+  .interpolate('basic')
+
+var svg = d3.select('#drawingCanvas')
+  .call(d3.behavior.drag()
+    .on('dragstart', dragstart)
+    .on('drag', drag)
+    .on('dragend', dragend))
+
+// create line from a shared array object and update the line when the array changes
+function drawLine (yarray) {
+  var line = svg.append('path').datum(yarray.toArray())
+  line.attr('d', renderPath)
+  yarray.observe(function (event) {
+    line.remove()
+    line = svg.append('path').datum(yarray.toArray())
+    line.attr('d', renderPath)
+  })
+}
+// call drawLine every time an array is appended
+drawing.observe(function (event) {
+  event.removedElements.forEach(function () {
+    // if one is deleted, all will be deleted!!
+    svg.selectAll('path').remove()
+  })
+  event.addedElements.forEach(function (path) {
+    drawLine(path)
+  })
+})
+// draw all existing content
+for (var i = 0; i < drawing.length; i++) {
+  drawLine(drawing.get(i))
+}
+
+// clear canvas on request
+document.querySelector('#clearDrawingCanvas').onclick = function () {
+  drawing.delete(0, drawing.length)
+}
+
+var sharedLine = null
+function dragstart () {
+  drawing.insert(drawing.length, [Y.Array])
+  sharedLine = drawing.get(drawing.length - 1)
+}
+
+// After one dragged event is recognized, we ignore them for 33ms.
+var ignoreDrag = null
+function drag () {
+  if (sharedLine != null && ignoreDrag == null) {
+    ignoreDrag = window.setTimeout(function () {
+      ignoreDrag = null
+    }, 10)
+    sharedLine.push([d3.mouse(this)])
+  }
+}
+
+function dragend () {
+  sharedLine = null
+  window.clearTimeout(ignoreDrag)
+  ignoreDrag = null
+}