The smoke rises

2015-01-10 15:21:03 -05:00
parent 3f18d22df7
commit 785ed3916c
398 changed files with 82346 additions and 0 deletions
--- a/public/js/lib/codemirror/addon/scroll/annotatescrollbar.js
+++ b/public/js/lib/codemirror/addon/scroll/annotatescrollbar.js
@@ -0,0 +1,76 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+  "use strict";
+
+  CodeMirror.defineExtension("annotateScrollbar", function(className) {
+    return new Annotation(this, className);
+  });
+
+  function Annotation(cm, className) {
+    this.cm = cm;
+    this.className = className;
+    this.annotations = [];
+    this.div = cm.getWrapperElement().appendChild(document.createElement("div"));
+    this.div.style.cssText = "position: absolute; right: 0; top: 0; z-index: 7; pointer-events: none";
+    this.computeScale();
+
+    var self = this;
+    cm.on("refresh", this.resizeHandler = function(){
+      if (self.computeScale()) self.redraw();
+    });
+  }
+
+  Annotation.prototype.computeScale = function() {
+    var cm = this.cm;
+    var hScale = (cm.getWrapperElement().clientHeight - cm.display.barHeight) /
+      cm.heightAtLine(cm.lastLine() + 1, "local");
+    if (hScale != this.hScale) {
+      this.hScale = hScale;
+      return true;
+    }
+  };
+
+  Annotation.prototype.update = function(annotations) {
+    this.annotations = annotations;
+    this.redraw();
+  };
+
+  Annotation.prototype.redraw = function() {
+    var cm = this.cm, hScale = this.hScale;
+    if (!cm.display.barWidth) return;
+
+    var frag = document.createDocumentFragment(), anns = this.annotations;
+    for (var i = 0, nextTop; i < anns.length; i++) {
+      var ann = anns[i];
+      var top = nextTop || cm.charCoords(ann.from, "local").top * hScale;
+      var bottom = cm.charCoords(ann.to, "local").bottom * hScale;
+      while (i < anns.length - 1) {
+        nextTop = cm.charCoords(anns[i + 1].from, "local").top * hScale;
+        if (nextTop > bottom + .9) break;
+        ann = anns[++i];
+        bottom = cm.charCoords(ann.to, "local").bottom * hScale;
+      }
+      var height = Math.max(bottom - top, 3);
+
+      var elt = frag.appendChild(document.createElement("div"));
+      elt.style.cssText = "position: absolute; right: 0px; width: " + Math.max(cm.display.barWidth - 1, 2) + "px; top: " + top + "px; height: " + height + "px";
+      elt.className = this.className;
+    }
+    this.div.textContent = "";
+    this.div.appendChild(frag);
+  };
+
+  Annotation.prototype.clear = function() {
+    this.cm.off("refresh", this.resizeHandler);
+    this.div.parentNode.removeChild(this.div);
+  };
+});