From a747f89b7137b9f6cf9bbd1ba14749c9a8fb5e72 Mon Sep 17 00:00:00 2001
From: Lewis Hemens <lewis@hemens.co.uk>
Date: Sun, 23 Mar 2014 22:47:15 +0000
Subject: [PATCH] Added safe request wrapper for mitigating errors on mobile

---
 js-compiled.js             | 318 +++++++++++++++++++------------------
 js-lib/drive-controller.js |  20 ++-
 2 files changed, 179 insertions(+), 159 deletions(-)

diff --git a/js-compiled.js b/js-compiled.js
index 5061d21..821b37c 100644
--- a/js-compiled.js
+++ b/js-compiled.js
@@ -102,7 +102,7 @@ function fa(a) {
       if (x(h) || null != h.f && " " != w(h)) {
         a.context.fillStyle = null != h.f ? "#DEF" : "#F5F5F5", b.fillRect(9 * g - a.offset.x, 17 * (k - 1) - a.offset.y, 9, 17);
       }
-      var t = E(a.state, new l(g, k));
+      var t = ga(a.state, new l(g, k));
       null == t || x(h) && !e || (a.context.fillStyle = "#000000", b.fillText(t, 9 * g - a.offset.x, 17 * k - a.offset.y - 3));
     }
   }
@@ -126,62 +126,62 @@ function fa(a) {
 function B(a, b) {
   return new l(Math.min(Math.max(1, Math.round(((new l((b.x - a.canvas.width / 2) / a.zoom + a.offset.x, (b.y - a.canvas.height / 2) / a.zoom + a.offset.y)).x - 4.5) / 9)), 1998), Math.min(Math.max(1, Math.round(((new l((b.x - a.canvas.width / 2) / a.zoom + a.offset.x, (b.y - a.canvas.height / 2) / a.zoom + a.offset.y)).y + 8.5) / 17)), 598));
 }
-;function F(a, b, c, d, e) {
+;function E(a, b, c, d, e) {
   e = e || "+";
   var g = Math.min(b.x, c.x), k = Math.min(b.y, c.y), h = Math.max(b.x, c.x), t = Math.max(b.y, c.y), u = d ? c.x : b.x;
   for (d = d ? b.y : c.y;g++ < h;) {
     var Q = new l(g, d), D = a.getContext(new l(g, d));
-    " " == e && 2 == D.m + D.j || H(a, Q, e);
+    " " == e && 2 == D.m + D.j || F(a, Q, e);
   }
   for (;k++ < t;) {
-    Q = new l(u, k), D = a.getContext(new l(u, k)), " " == e && 2 == D.left + D.right || H(a, Q, e);
+    Q = new l(u, k), D = a.getContext(new l(u, k)), " " == e && 2 == D.left + D.right || F(a, Q, e);
   }
-  I(a, b, e);
-  I(a, c, e);
-  H(a, new l(u, d), e);
+  H(a, b, e);
+  H(a, c, e);
+  F(a, new l(u, d), e);
 }
-function J(a) {
+function I(a) {
   this.state = a;
   this.a = null;
 }
-J.prototype.start = function(a) {
+I.prototype.start = function(a) {
   this.a = a;
 };
-J.prototype.move = function(a) {
+I.prototype.move = function(a) {
   this.g = a;
+  J(this.state);
+  E(this.state, this.a, a, !0);
+  E(this.state, this.a, a, !1);
+};
+I.prototype.end = function() {
   K(this.state);
-  F(this.state, this.a, a, !0);
-  F(this.state, this.a, a, !1);
 };
-J.prototype.end = function() {
-  L(this.state);
-};
-J.prototype.l = function() {
+I.prototype.l = function() {
   return "crosshair";
 };
-J.prototype.e = function() {
+I.prototype.e = function() {
 };
-function M(a) {
+function L(a) {
   this.state = a;
   this.a = null;
 }
-M.prototype.start = function(a) {
+L.prototype.start = function(a) {
   this.a = a;
 };
-M.prototype.move = function(a) {
-  K(this.state);
+L.prototype.move = function(a) {
+  J(this.state);
   var b = this.state.getContext(this.a), c = this.state.getContext(a);
-  F(this.state, this.a, a, b.m && b.j || c.left && c.right);
+  E(this.state, this.a, a, b.m && b.j || c.left && c.right);
 };
-M.prototype.end = function() {
-  L(this.state);
+L.prototype.end = function() {
+  K(this.state);
 };
-M.prototype.l = function() {
+L.prototype.l = function() {
   return "crosshair";
 };
-M.prototype.e = function() {
+L.prototype.e = function() {
 };
-function N(a, b) {
+function M(a, b) {
   this.state = a;
   this.value = b;
   f && ($("#freeform-tool-input").val(""), $("#freeform-tool-input").hide(0, function() {
@@ -190,84 +190,84 @@ function N(a, b) {
     });
   }));
 }
-N.prototype.start = function(a) {
-  I(this.state, a, this.value);
+M.prototype.start = function(a) {
+  H(this.state, a, this.value);
 };
-N.prototype.move = function(a) {
-  I(this.state, a, this.value);
+M.prototype.move = function(a) {
+  H(this.state, a, this.value);
 };
-N.prototype.end = function() {
-  L(this.state);
+M.prototype.end = function() {
+  K(this.state);
 };
-N.prototype.l = function() {
+M.prototype.l = function() {
   return "crosshair";
 };
-N.prototype.e = function(a) {
+M.prototype.e = function(a) {
   f && (this.value = $("#freeform-tool-input").val().substr(0, 1), $("#freeform-tool-input").blur(), $("#freeform-tool-input").hide(0));
   1 == a.length && (this.value = a);
 };
-function O(a) {
+function N(a) {
   this.state = a;
   this.a = null;
 }
-O.prototype.start = function(a) {
-  L(this.state);
+N.prototype.start = function(a) {
+  K(this.state);
   $("#text-tool-input").val("");
   this.a = a;
   a = w(C(this.state, this.a));
-  I(this.state, this.a, null == a ? "\u2009" : a);
+  H(this.state, this.a, null == a ? "\u2009" : a);
 };
-O.prototype.move = function() {
+N.prototype.move = function() {
 };
-O.prototype.end = function() {
+N.prototype.end = function() {
   null != this.a && (this.g = this.a, this.a = null, $("#text-tool-widget").hide(0, function() {
     $("#text-tool-widget").show(0, function() {
       $("#text-tool-input").focus();
     });
   }));
 };
-O.prototype.l = function() {
+N.prototype.l = function() {
   return "pointer";
 };
-O.prototype.e = function() {
+N.prototype.e = function() {
   var a = $("#text-tool-input").val();
-  K(this.state);
+  J(this.state);
   for (var b = 0, c = 0, d = 0;d < a.length;d++) {
-    "\n" == a[d] ? (c++, b = 0) : (I(this.state, this.g.add(new l(b, c)), a[d]), b++);
+    "\n" == a[d] ? (c++, b = 0) : (H(this.state, this.g.add(new l(b, c)), a[d]), b++);
   }
 };
-function P(a) {
+function O(a) {
   this.state = a;
   this.g = this.a = null;
 }
-P.prototype.start = function(a) {
+O.prototype.start = function(a) {
   this.a = a;
   this.move(a);
 };
-P.prototype.move = function(a) {
-  K(this.state);
+O.prototype.move = function(a) {
+  J(this.state);
   this.g = a;
   var b = Math.min(this.a.x, this.g.x);
   a = Math.min(this.a.y, this.g.y);
   for (var c = Math.max(this.a.x, this.g.x), d = Math.max(this.a.y, this.g.y);b <= c;b++) {
     for (var e = a;e <= d;e++) {
-      I(this.state, new l(b, e), "\u2009");
+      H(this.state, new l(b, e), "\u2009");
     }
   }
 };
-P.prototype.end = function() {
-  L(this.state);
+O.prototype.end = function() {
+  K(this.state);
 };
-P.prototype.l = function() {
+O.prototype.l = function() {
   return "crosshair";
 };
-P.prototype.e = function() {
+O.prototype.e = function() {
 };
-function R(a) {
+function P(a) {
   this.state = a;
   this.h = this.a = null;
 }
-R.prototype.start = function(a) {
+P.prototype.start = function(a) {
   if (f && !x(C(this.state, a))) {
     var b = v.concat([p.add(r), p.add(s), q.add(r), q.add(s)]), c = null, d = 0, e;
     for (e in b) {
@@ -282,13 +282,13 @@ R.prototype.start = function(a) {
     this.state.getContext(this.a);
     a = [];
     for (var h in v) {
-      var b = ga(this, this.a, v[h]), t;
+      var b = ha(this, this.a, v[h]), t;
       for (t in b) {
         if (c = b[t], d = 0 != v[h].x, 1 == y(this.state.getContext(c))) {
           a.push({position:c, v:d});
         } else {
           for (var u in v) {
-            0 != v[h].add(v[u]).length() && 2 != v[h].add(v[u]).length() && (e = ga(this, c, v[u]), 0 != e.length && a.push({position:e[e.length - 1], v:d}));
+            0 != v[h].add(v[u]).length() && 2 != v[h].add(v[u]).length() && (e = ha(this, c, v[u]), 0 != e.length && a.push({position:e[e.length - 1], v:d}));
           }
         }
       }
@@ -297,19 +297,19 @@ R.prototype.start = function(a) {
     this.move(this.a);
   }
 };
-R.prototype.move = function(a) {
-  K(this.state);
+P.prototype.move = function(a) {
+  J(this.state);
   for (var b in this.h) {
-    F(this.state, this.a, this.h[b].position, this.h[b].v, " ");
+    E(this.state, this.a, this.h[b].position, this.h[b].v, " ");
   }
   for (b in this.h) {
-    F(this.state, a, this.h[b].position, this.h[b].v);
+    E(this.state, a, this.h[b].position, this.h[b].v);
   }
 };
-R.prototype.end = function() {
-  L(this.state);
+P.prototype.end = function() {
+  K(this.state);
 };
-function ga(a, b, c) {
+function ha(a, b, c) {
   for (var d = b.clone(), e = [];;) {
     var g = d.add(c);
     if (!x(C(a.state, g))) {
@@ -319,12 +319,12 @@ function ga(a, b, c) {
     3 == y(a.state.getContext(d)) && e.push(d);
   }
 }
-R.prototype.l = function(a) {
+P.prototype.l = function(a) {
   return x(C(this.state, a)) ? "pointer" : "default";
 };
-R.prototype.e = function() {
+P.prototype.e = function() {
 };
-function S() {
+function R() {
   this.cells = Array(2E3);
   this.i = [];
   this.d = !0;
@@ -337,33 +337,33 @@ function S() {
     }
   }
 }
-S.prototype.clear = function() {
+R.prototype.clear = function() {
   for (var a = 0;a < this.cells.length;a++) {
     for (var b = 0;b < this.cells[a].length;b++) {
-      null != w(this.cells[a][b]) && I(this, new l(a, b), "\u2009");
+      null != w(this.cells[a][b]) && H(this, new l(a, b), "\u2009");
     }
   }
-  L(this);
+  K(this);
 };
 function C(a, b) {
   return a.cells[b.x][b.y];
 }
-function I(a, b, c) {
+function H(a, b, c) {
   var d = C(a, b);
   a.i.push(new ea(b, d));
   d.f = c;
   a.d = !0;
 }
-function H(a, b, c) {
-  w(C(a, b)) != c && I(a, b, c);
+function F(a, b, c) {
+  w(C(a, b)) != c && H(a, b, c);
 }
-function K(a) {
+function J(a) {
   for (var b in a.i) {
     a.i[b].F.f = null;
   }
   a.i.length = 0;
 }
-function E(a, b) {
+function ga(a, b) {
   var c = C(a, b), c = null != c.f ? c.f : c.value;
   if ("+" != c) {
     return c;
@@ -371,12 +371,12 @@ function E(a, b) {
   c = a.getContext(b);
   return c.left && c.right && !c.m && !c.j ? "\u2013" : !c.left && !c.right && c.m && c.j ? "|" : c.left && c.right && c.m && c.j ? "\u2013" : "+";
 }
-S.prototype.getContext = function(a) {
+R.prototype.getContext = function(a) {
   var b = x(C(this, a.add(p))), c = x(C(this, a.add(q))), d = x(C(this, a.add(r)));
   a = x(C(this, a.add(s)));
   return new ca(b, c, d, a);
 };
-function L(a, b) {
+function K(a, b) {
   var c = [], d = a.i.map(function(a) {
     return a.position.x.toString() + a.position.y.toString();
   }), e = a.i.filter(function(a, b) {
@@ -397,27 +397,27 @@ function L(a, b) {
   0 < c.length && (50 < e.length && e.shift(), e.push(c));
   a.d = !0;
 }
-function ha(a) {
+function ia(a) {
   if (0 != a.D.length) {
     var b = a.D.pop(), c;
     for (c in b) {
       var d = b[c];
-      I(a, d.position, d.value);
+      H(a, d.position, d.value);
     }
-    L(a, !0);
+    K(a, !0);
   }
 }
-function ia(a) {
+function ja(a) {
   if (0 != a.C.length) {
     var b = a.C.pop(), c;
     for (c in b) {
       var d = b[c];
-      I(a, d.position, d.value);
+      H(a, d.position, d.value);
     }
-    L(a);
+    K(a);
   }
 }
-function T(a) {
+function S(a) {
   for (var b = new l(Number.MAX_VALUE, Number.MAX_VALUE), c = new l(-1, -1), d = 0;d < a.cells.length;d++) {
     for (var e = 0;e < a.cells[d].length;e++) {
       null != w(a.cells[d][e]) && (d < b.x && (b.x = d), e < b.y && (b.y = e), d > c.x && (c.x = d), e > c.y && (c.y = e));
@@ -428,13 +428,13 @@ function T(a) {
   }
   for (var g = "", e = b.y;e <= c.y;e++) {
     for (var k = "", d = b.x;d <= c.x;d++) {
-      var h = E(a, new l(d, e)), k = k + (null == h ? " " : h)
+      var h = ga(a, new l(d, e)), k = k + (null == h ? " " : h)
     }
     g += k.replace("\\s+$/g", "") + "\n";
   }
   return g;
 }
-function ja(a, b, c) {
+function ka(a, b, c) {
   b = b.split("\n");
   for (var d = new l(0, Math.round(b.length / 2)), e = 0;e < b.length;e++) {
     d.x = Math.max(d.x, Math.round(b[e].length / 2));
@@ -445,19 +445,19 @@ function ja(a, b, c) {
       if ("\u2013" == h || "|" == h) {
         h = "+";
       }
-      I(a, n((new l(k, e)).add(c), d), h);
+      H(a, n((new l(k, e)).add(c), d), h);
     }
   }
-  L(a);
+  K(a);
 }
-;function U(a, b) {
+;function T(a, b) {
   this.view = a;
   this.state = b;
-  this.c = new J(b);
+  this.c = new I(b);
   this.mode = 0;
   this.n();
 }
-U.prototype.r = function(a) {
+T.prototype.r = function(a) {
   var b = B(this.view, a);
   null == this.o && (this.o = b);
   m(b, this.o) || (this.view.canvas.style.cursor = this.c.l(b));
@@ -470,14 +470,14 @@ U.prototype.r = function(a) {
   }
   this.o = b;
 };
-function V(a) {
+function U(a) {
   2 == a.mode && a.c.end();
   a.mode = 0;
   a.w = null;
   a.A = null;
   a.o = null;
 }
-U.prototype.n = function() {
+T.prototype.n = function() {
   var a = this;
   $(window).resize(function() {
     A(a.view);
@@ -488,30 +488,30 @@ U.prototype.n = function() {
     $("#draw-tools > button.tool").removeClass("active");
     $("#" + a).toggleClass("active");
     $(".dialog").removeClass("visible");
-    "box-button" == a && (this.c = new J(this.state));
-    "line-button" == a && (this.c = new M(this.state));
-    "freeform-button" == a && (this.c = new N(this.state, "+"));
-    "erase-button" == a && (this.c = new P(this.state));
-    "move-button" == a && (this.c = new R(this.state));
-    "text-button" == a && (this.c = new O(this.state));
-    L(this.state);
+    "box-button" == a && (this.c = new I(this.state));
+    "line-button" == a && (this.c = new L(this.state));
+    "freeform-button" == a && (this.c = new M(this.state, "+"));
+    "erase-button" == a && (this.c = new O(this.state));
+    "move-button" == a && (this.c = new P(this.state));
+    "text-button" == a && (this.c = new N(this.state));
+    K(this.state);
     this.view.canvas.focus();
   }.bind(this));
   $("#file-tools > button.tool").click(function(a) {
     a = a.target.id;
     $(".dialog").removeClass("visible");
     $("#" + a + "-dialog").toggleClass("visible");
-    "export-button" == a && ($("#export-area").val(T(this.state)), $("#export-area").focus(), $("#export-area").select());
+    "export-button" == a && ($("#export-area").val(S(this.state)), $("#export-area").focus(), $("#export-area").select());
     "clear-button" == a && this.state.clear();
-    "undo-button" == a && ha(this.state);
-    "redo-button" == a && ia(this.state);
+    "undo-button" == a && ia(this.state);
+    "redo-button" == a && ja(this.state);
   }.bind(this));
   $("button.close-dialog-button").click(function() {
     $(".dialog").removeClass("visible");
   }.bind(this));
   $("#import-submit-button").click(function() {
     this.state.clear();
-    ja(this.state, $("#import-area").val(), B(this.view, new l(this.view.canvas.width / 2, this.view.canvas.height / 2)));
+    ka(this.state, $("#import-area").val(), B(this.view, new l(this.view.canvas.width / 2, this.view.canvas.height / 2)));
     $("#import-area").val("");
   }.bind(this));
   $("#use-lines-button").click(function() {
@@ -532,7 +532,7 @@ U.prototype.n = function() {
   $(window).keydown(function(a) {
     var c = null;
     if (a.ctrlKey || a.metaKey) {
-      67 == a.keyCode && (c = "<copy>"), 86 == a.keyCode && (c = "<paste>"), 90 == a.keyCode && ha(this.state), 89 == a.keyCode && ia(this.state), 88 == a.keyCode && (c = "<cut>");
+      67 == a.keyCode && (c = "<copy>"), 86 == a.keyCode && (c = "<paste>"), 90 == a.keyCode && ia(this.state), 89 == a.keyCode && ja(this.state), 88 == a.keyCode && (c = "<cut>");
     }
     8 == a.keyCode && (c = "<backspace>");
     13 == a.keyCode && (c = "<enter>");
@@ -550,27 +550,27 @@ U.prototype.n = function() {
   }.bind(this));
   $("#text-tool-close").click(function() {
     $("#text-tool-widget").hide();
-    L(this.state);
+    K(this.state);
   }.bind(this));
 };
-function ka(a, b) {
+function la(a, b) {
   this.p = !1;
   this.state = a;
   this.view = b;
   this.file = null;
-  la(this);
+  ma(this);
   $("#drive-button").click(function() {
-    this.p ? ma(this) : (W(this, !1), na(this));
+    this.p ? na(this) : (V(this, !1), oa(this));
   }.bind(this));
   $("#drive-filename").click(function() {
     var a = "" + $("#drive-filename").text(), a = prompt("Enter new filename:", a);
     this.file.title = a;
     this.save();
-    oa(this);
+    pa(this);
   }.bind(this));
-  pa(this);
+  qa(this);
   $(window).bind("hashchange", function() {
-    qa(this);
+    ra(this);
   }.bind(this));
   $("#drive-new-file-button").click(function() {
     this.file = null;
@@ -580,34 +580,34 @@ function ka(a, b) {
     $("#drive-dialog").removeClass("visible");
   }.bind(this));
 }
-function W(a, b) {
+function V(a, b) {
   window.gapi.auth.authorize({client_id:"125643747010-9s9n1ne2fnnuh5v967licfkt83r4vba5.apps.googleusercontent.com", scope:"https://www.googleapis.com/auth/drive", immediate:b}, function(a) {
-    !a || a.error || this.p || (this.p = !0, $("#drive-button").addClass("active"), qa(this));
+    !a || a.error || this.p || (this.p = !0, $("#drive-button").addClass("active"), ra(this));
   }.bind(a));
 }
-function la(a) {
-  window.gapi && window.gapi.auth && window.gapi.auth.authorize ? W(a, !0) : window.setTimeout(function() {
-    la(this);
+function ma(a) {
+  window.gapi && window.gapi.auth && window.gapi.auth.authorize ? V(a, !0) : window.setTimeout(function() {
+    ma(this);
   }.bind(a), 500);
 }
-function na(a) {
+function oa(a) {
   window.setTimeout(function() {
-    this.p ? ma(this) : (W(this, !0), na(this));
+    this.p ? na(this) : (V(this, !0), oa(this));
   }.bind(a), 1E3);
 }
-function ra(a, b) {
+function sa(a, b) {
   a.file = b;
   $("#drive-filename").text(b.title);
   window.location.hash = b.id;
 }
-function ma(a) {
+function na(a) {
   $("#drive-dialog").addClass("visible");
-  var b = T(a.state);
+  var b = S(a.state);
   5 < b.length && b != a.u && a.save();
-  oa(a);
+  pa(a);
 }
-function oa(a) {
-  window.gapi.client.request({path:"/drive/v2/files", params:{q:"mimeType = 'text/plain' and trashed = false"}, method:"GET"}).execute(function(a) {
+function pa(a) {
+  W(window.gapi.client.request({path:"/drive/v2/files", params:{q:"mimeType = 'text/plain' and trashed = false"}, method:"GET"}), function(a) {
     $("#drive-file-list").children().remove();
     a = a.items;
     for (var c in a) {
@@ -617,40 +617,48 @@ function oa(a) {
     }
   }.bind(a));
 }
-function pa(a) {
-  T(a.state) != a.u && a.file && a.file.editable && a.save();
+function W(a, b) {
+  try {
+    a.execute(function(a) {
+      a.error || b(a);
+    });
+  } catch (c) {
+  }
+}
+function qa(a) {
+  S(a.state) != a.u && a.file && a.file.editable && a.save();
   window.setTimeout(function() {
-    pa(this);
+    qa(this);
   }.bind(a), 5E3);
 }
-ka.prototype.save = function() {
-  var a = T(this.state);
+la.prototype.save = function() {
+  var a = S(this.state);
   $("#drive-save-state").text("Saving...");
-  sa(this, a).execute(function(b) {
-    ra(this, b);
+  W(ta(this, a), function(b) {
+    sa(this, b);
     $("#drive-save-state").text("Saved");
     this.u = a;
   }.bind(this));
 };
-function qa(a) {
-  1 < window.location.hash.length && ($("#drive-save-state").text("Loading..."), window.gapi.client.request({path:"/drive/v2/files/" + window.location.hash.substr(1, window.location.hash.length - 1), method:"GET"}).execute(function(a) {
-    ra(this, a);
-    ta(this);
+function ra(a) {
+  1 < window.location.hash.length && ($("#drive-save-state").text("Loading..."), W(window.gapi.client.request({path:"/drive/v2/files/" + window.location.hash.substr(1, window.location.hash.length - 1), method:"GET"}), function(a) {
+    sa(this, a);
+    ua(this);
   }.bind(a)));
 }
-function ta(a) {
-  ua(a.file.downloadUrl, function(a) {
+function ua(a) {
+  va(a.file.downloadUrl, function(a) {
     $("#drive-save-state").text("Loaded");
     this.state.clear();
-    ja(this.state, a, B(this.view, new l(this.view.canvas.width / 2, this.view.canvas.height / 2)));
-    this.u = T(this.state);
+    ka(this.state, a, B(this.view, new l(this.view.canvas.width / 2, this.view.canvas.height / 2)));
+    this.u = S(this.state);
   }.bind(a));
 }
-function sa(a, b) {
+function ta(a, b) {
   var c = "\r\n---------314159265358979323846\r\nContent-Type: application/json\r\n\r\n" + JSON.stringify({title:null == a.file ? "Untitled ASCII Diagram" : a.file.title, mimeType:"text/plain"}) + "\r\n---------314159265358979323846\r\nContent-Type: text/plain\r\n\r\n" + b + "\r\n---------314159265358979323846--";
   return window.gapi.client.request({path:"/upload/drive/v2/files" + (null == a.file ? "" : "/" + a.file.id), method:null == a.file ? "POST" : "PUT", params:{uploadType:"multipart"}, headers:{"Content-Type":'multipart/mixed; boundary="-------314159265358979323846"'}, body:c});
 }
-function ua(a, b) {
+function va(a, b) {
   var c = window.gapi.auth.getToken().access_token, d = new XMLHttpRequest;
   d.open("GET", a);
   d.setRequestHeader("Authorization", "Bearer " + c);
@@ -662,11 +670,11 @@ function ua(a, b) {
   };
   d.send();
 }
-;function va(a) {
+;function wa(a) {
   this.b = a;
   this.n();
 }
-va.prototype.n = function() {
+wa.prototype.n = function() {
   var a = this.b.view.canvas;
   $(a).bind("mousewheel", function(a) {
     a = this.b.view.zoom * (0 < a.originalEvent.wheelDelta ? 1.1 : 0.9);
@@ -687,10 +695,10 @@ va.prototype.n = function() {
     }
   }.bind(this));
   $(a).mouseup(function() {
-    V(this.b);
+    U(this.b);
   }.bind(this));
   $(a).mouseleave(function() {
-    V(this.b);
+    U(this.b);
   }.bind(this));
   $(a).mousemove(function(a) {
     this.b.r(new l(a.clientX, a.clientY));
@@ -701,7 +709,7 @@ function X(a) {
   this.t = this.k = !1;
   this.n();
 }
-function wa(a, b) {
+function xa(a, b) {
   a.B = b;
   a.I = $.now();
   a.k = !1;
@@ -732,12 +740,12 @@ X.prototype.n = function() {
   $(a).bind("touchstart", function(a) {
     a.preventDefault();
     if (1 == a.originalEvent.touches.length) {
-      wa(this, new l(a.originalEvent.touches[0].pageX, a.originalEvent.touches[0].pageY));
+      xa(this, new l(a.originalEvent.touches[0].pageX, a.originalEvent.touches[0].pageY));
     } else {
       if (1 < a.originalEvent.touches.length) {
         var c = new l(a.originalEvent.touches[0].pageX, a.originalEvent.touches[0].pageY);
         a = new l(a.originalEvent.touches[1].pageX, a.originalEvent.touches[1].pageY);
-        V(this.b);
+        U(this.b);
         this.t = !0;
         this.k = !1;
         this.J = n(c, a).length();
@@ -760,12 +768,12 @@ X.prototype.n = function() {
   $(a).bind("touchend", function(a) {
     a.preventDefault();
     this.reset();
-    V(this.b);
+    U(this.b);
   }.bind(this));
 };
-var Y = new S, Z = new z(Y), xa = new U(Z, Y);
-new X(xa);
-new va(xa);
-new ka(Y, Z);
+var Y = new R, Z = new z(Y), ya = new T(Z, Y);
+new X(ya);
+new wa(ya);
+new la(Y, Z);
 Z.animate();
 
diff --git a/js-lib/drive-controller.js b/js-lib/drive-controller.js
index 5ab27f1..6815c92 100644
--- a/js-lib/drive-controller.js
+++ b/js-lib/drive-controller.js
@@ -102,7 +102,7 @@ ascii.DriveController.prototype.waitForFullAuth = function() {
 ascii.DriveController.prototype.handleFile = function(file) {
   this.file = file;
   $('#drive-filename').text(file['title']);
-  window.location.hash = file.id;
+  window.location.hash = file['id'];
 };
 
 
@@ -121,7 +121,7 @@ ascii.DriveController.prototype.loadDialog = function() {
 };
 
 ascii.DriveController.prototype.loadFileList = function() {
-  this.getListRequest().execute(function(result) {
+  this.safeExecute(this.getListRequest(), function(result) {
     $('#drive-file-list').children().remove();
     var items = result['items'];
     for (var i in items) {
@@ -131,6 +131,18 @@ ascii.DriveController.prototype.loadFileList = function() {
     }
   }.bind(this));
 }
+
+ascii.DriveController.prototype.safeExecute = function(request, callback) {
+  // Could make the API call, don't blow up tho (mobiles n stuff).
+  try {
+    request['execute'](function(result) {
+      if (!result['error']) {
+        callback(result);
+      }
+    });
+  } catch (e) {}
+};
+
 /**
  * Repeatedly save the diagram if it is editable and loaded.
  */
@@ -150,7 +162,7 @@ ascii.DriveController.prototype.loopSave = function() {
 ascii.DriveController.prototype.save = function() {
   var text = this.state.outputText();
   $('#drive-save-state').text('Saving...');
-  this.getSaveRequest(text).execute(function(result) {
+  this.safeExecute(this.getSaveRequest(text), function(result) {
     this.handleFile(result);
     $('#drive-save-state').text('Saved');
     this.cachedText = text;
@@ -161,7 +173,7 @@ ascii.DriveController.prototype.loadFromHash = function() {
   if (window.location.hash.length > 1) {
     $('#drive-save-state').text('Loading...');
     var fileId = window.location.hash.substr(1, window.location.hash.length - 1);
-    this.getLoadRequest(fileId).execute(function(result) {
+    this.safeExecute(this.getLoadRequest(fileId), function(result) {
       this.handleFile(result);
       this.reloadFileContent();
     }.bind(this));