Reintroduced text blocks and added fixes + tests

tbranyen · Jan 8, 2016 · 255b501 · 255b501
1 parent 0942257
commit 255b501
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Showing 13 changed files with 253 additions and 153 deletions.
diff --git a/dist/diffhtml.js b/dist/diffhtml.js
diff --git a/karma.conf.js b/karma.conf.js
@@ -12,12 +12,13 @@ module.exports = function(config) {
       'node_modules/weakmap/weakmap.js',
       'lib/**/*.js',
       'test/assert.js',
+
       { pattern: 'test/unit/**/*.js', watched: false },
       { pattern: 'test/integration/**/*.js', watched: false }
     ],
 
     preprocessors: {
-      '{lib/**/*, lib/worker/!source}.js': ['browserify'],
+      'lib/**/*.js': ['browserify'],
       'test/unit/**/*.js': ['browserify'],
       'test/integration/**/*.js': ['browserify'],
     },
@@ -27,7 +28,6 @@ module.exports = function(config) {
     coverageReporter: {
       type: 'lcov',
       dir: 'test/coverage',
-
       instrumenters: { isparta: isparta },
       instrumenter: { '**/*.js': 'isparta' }
     },

diff --git a/lib/element/make.js b/lib/element/make.js
@@ -1,6 +1,7 @@
 import * as svg from '../svg';
 import makeNode from '../node/make';
 import { components, upgrade } from './custom';
+import { decodeEntities } from '../util/entities';
 
 /**
  * Takes in a virtual descriptor and creates an HTML element. Sets the element
@@ -53,7 +54,7 @@ export default function make(descriptor) {
   // Set the text content, this should be refactored such that only text nodes
   // should ever get assigned a value.
   if (descriptor.nodeValue) {
-    element.textContent = descriptor.nodeValue;
+    element.textContent = decodeEntities(descriptor.nodeValue);
   }
 
   // Upgrade the element after creating it.

diff --git a/lib/patches/process.js b/lib/patches/process.js
@@ -7,6 +7,8 @@ import * as sync from '../node/sync';
 import { unprotectElement } from '../util/memory';
 import { decodeEntities } from '../util/entities';
 
+const blockTextElements = ['script', 'noscript', 'style', 'pre'];
+
 /**
  * Processes an Array of patches.
  *
@@ -27,9 +29,7 @@ export default function process(element, patches) {
       let textPromises = transition.makePromises('textChanged',
         [element], null, descriptor.nodeValue);
 
-      let decoded = decodeEntities(descriptor.nodeValue);
-
-      element.nodeValue = decoded;
+      element.nodeValue = descriptor.nodeValue;
 
       triggerTransition('textChanged', textPromises, promises => {});
     }
@@ -42,6 +42,7 @@ export default function process(element, patches) {
       fragment.appendChild(element);
     }
 
+
     return element;
   };
 
@@ -184,6 +185,7 @@ export default function process(element, patches) {
             'document root?');
         }
 
+
         // Append the element first, before doing the replacement.
         patch.old.parentNode.insertBefore(patch.new, patch.old.nextSibling);
 
@@ -252,12 +254,12 @@ export default function process(element, patches) {
         [patch.element], patch.element.nodeValue, patch.value);
 
       triggerTransition('textChanged', textChangePromises, promises => {
-        let decoded = decodeEntities(patch.value);
+        patch.element.nodeValue = decodeEntities(patch.value);
 
-        patch.element.nodeValue = decoded;
+        let nodeName = patch.element.parentNode.nodeName.toLowerCase();
 
-        if (patch.element.parentNode) {
-          patch.element.parentNode.nodeValue = decoded;
+        if (blockTextElements[nodeName]) {
+          patch.element.parentNode.nodeValue = decodeEntities(patch.value);
         }
       });
     }

diff --git a/lib/transitions.js b/lib/transitions.js
@@ -161,17 +161,21 @@ function triggerLifecycleEvent(stateName, args, elements) {
   // Trigger custom element
   var customElementFn = fnSignatures[stateName].customElementsFn;
 
-  elements.filter(Boolean).forEach(function(element) {
-    var customElement = components[element.nodeName.toLowerCase()] || empty;
-    var customElementMethodName = `${stateName}Callback`;
-
-    // Call the associated CustomElement's lifecycle callback, if it exists.
-    if (customElement.prototype[customElementMethodName]) {
-      customElementFn.apply(null, args)(
-        customElement.prototype[customElementMethodName].bind(element)
-      );
+  for (let i = 0; i < elements.length; i++) {
+    let element = elements[i];
+
+    if (element) {
+      let customElement = components[element.nodeName.toLowerCase()] || empty;
+      let customElementMethodName = `${stateName}Callback`;
+
+      // Call the associated CustomElement's lifecycle callback, if it exists.
+      if (customElement.prototype[customElementMethodName]) {
+        customElementFn.apply(null, args)(
+          customElement.prototype[customElementMethodName].bind(element)
+        );
+      }
     }
-  });
+  }
 }
 
 /**

diff --git a/lib/util/entities.js b/lib/util/entities.js
@@ -1,11 +1,11 @@
 let element = document.createElement('div');
 
 /**
- * Decode's HTML entities.
+ * Decodes HTML strings.
  *
  * @see http://stackoverflow.com/a/13091266
  * @param stringing
- * @return unescaped decoded HTML
+ * @return unescaped HTML
  */
 export function decodeEntities(string) {
   element.innerHTML = string;

diff --git a/lib/util/parser.js b/lib/util/parser.js
@@ -100,6 +100,14 @@ export function makeParser() {
     }
   };
 
+  var kBlockTextElements = {
+    script: true,
+    noscript: true,
+    style: true,
+    pre: true,
+    template: true
+  };
+
   /**
    * TextNode to contain a text element in DOM tree.
    * @param {string} value [description]
@@ -161,15 +169,13 @@ export function makeParser() {
      * @param  {string} data      html
      * @return {HTMLElement}      root element
      */
-    parse: function(data, options) {
+    parse: function(data) {
       let rootObject = {};
       let root = HTMLElement(null, rootObject);
       let currentParent = root;
       let stack = [root];
       let lastTextPos = -1;
 
-      options = options || {};
-
       if (data.indexOf('<') === -1 && data) {
         currentParent.childNodes[currentParent.childNodes.length] = TextNode(data);
 
@@ -183,7 +189,7 @@ export function makeParser() {
             text = data.slice(lastTextPos, kMarkupPattern.lastIndex - match[0].length);
 
             if (text.trim()) {
-              currentParent.childNodes[currentParent.childNodes.length] = TextNode(text);
+              currentParent.childNodes.push(TextNode(text));
             }
           }
         }
@@ -210,10 +216,35 @@ export function makeParser() {
             }
           }
 
-          currentParent = currentParent.childNodes[currentParent.childNodes.push(
-              HTMLElement(match[2], attrs, match[3])) - 1];
+          currentParent = currentParent.childNodes[
+            currentParent.childNodes.push(
+              HTMLElement(match[2], attrs, match[3])
+            ) - 1
+          ];
 
           stack.push(currentParent);
+
+          if (kBlockTextElements[match[2]]) {
+            // A little test to find next </script> or </style> ...
+            let closeMarkup = '</' + match[2] + '>';
+            let index = data.indexOf(closeMarkup, kMarkupPattern.lastIndex);
+            let length = match[2].length;
+
+            if (index === -1) {
+              lastTextPos = kMarkupPattern.lastIndex = data.length + 1;
+            }
+            else {
+              lastTextPos = kMarkupPattern.lastIndex = index + closeMarkup.length;
+              match[1] = true;
+            }
+
+            let newText = data.slice(match.index + match[0].length, index);
+
+            if (newText.trim()) {
+              currentParent.childNodes.push(TextNode(newText));
+            }
+
+          }
         }
         if (match[1] || match[4] || kSelfClosingElements[match[2]]) {
           // </ or /> or <br> etc.

diff --git a/lib/worker/render.js b/lib/worker/render.js
@@ -12,8 +12,6 @@ import { cleanMemory } from '../util/memory';
  */
 export function completeWorkerRender(element, elementMeta) {
   return function(ev) {
-    var nodes = ev.data.nodes;
-
     var completeRender = function() {
       // Reset internal caches for quicker lookups in the futures.
       elementMeta._innerHTML = element.innerHTML;

diff --git a/lib/worker/source.js b/lib/worker/source.js
@@ -32,12 +32,15 @@ export default function startup(worker) {
     var isInner = data.isInner;
     var newTree = null;
 
-    // Always unprotect allocations before the start of a render cycle.
-    if (oldTree) { unprotectElement(oldTree); }
-
     // If an `oldTree` was provided by the UI thread, use that in place of the
     // current `oldTree`.
-    if (data.oldTree) { oldTree = data.oldTree; }
+    if (data.oldTree) {
+      if (oldTree) {
+        unprotectElement(oldTree);
+      }
+
+      oldTree = data.oldTree;
+    }
 
     // If the `newTree` was provided to the worker, use that instead of trying
     // to create one from HTML source.

diff --git a/test/integration/inner.js b/test/integration/inner.js
@@ -44,7 +44,7 @@ describe('Integration: innerHTML', function() {
   describe('Text', function() {
     it('can decode HTML entities', function() {
       diff.innerHTML(this.fixture, '<div>&lt;</div>');
-      assert.equal(this.fixture.innerHTML, '<div>&lt;</div>');
+      assert.equal(this.fixture.innerText, '&lt;');
     });
 
     it('can be override existing content', function() {
@@ -82,7 +82,7 @@ describe('Integration: innerHTML', function() {
     it('supports html5 entities', function() {
       diff.innerHTML(this.fixture, '<div>&gla;</div>');
 
-      assert.equal(this.fixture.firstChild.innerHTML, '⪥');
+      assert.equal(this.fixture.firstChild.innerText, '&gla;');
     });
   });
 

diff --git a/test/integration/outer.js b/test/integration/outer.js
@@ -39,7 +39,7 @@ describe('Integration: outerHTML', function() {
   });
 
   it('cannot replace an element without a parent', function() {
-    assert.throws(function() {
+    assert.throws(() => {
       diff.outerHTML(this.fixture, '<p></p>');
     });
   });
@@ -92,10 +92,25 @@ describe('Integration: outerHTML', function() {
       assert.equal(this.fixture.firstChild, span, 'are the same element');
     });
 
-    it('supports html5 entities', function() {
+    it('supports HTML5 entities', function() {
       diff.outerHTML(this.fixture, '<div>&gla;</div>');
 
-      assert.equal(this.fixture.innerHTML, '⪥');
+      assert.equal(this.fixture.innerText, '&gla;');
+    });
+
+    it('will properly escape markup being injected into script tags', function() {
+      diff.outerHTML(this.fixture, `
+        <div>
+          <script test>
+            var test = "<p></p>";
+          </script>
+        </div>
+      `);
+
+      assert.equal(this.fixture.querySelector('p'), null);
+      assert.equal(this.fixture.firstChild.firstChild.textContent.trim(), `
+         var test = \"<p></p>\";
+      `.trim());
     });
   });
 

diff --git a/test/playground.html b/test/playground.html
@@ -6,7 +6,7 @@
 
   <title>Playground</title>
 
-  <style>
+  <style type="text/css">
     button { border: none; padding: 10px; -webkit-user-select: none; }
     [id^=add] { background-color: green; color: #FFF; } 
     [id^=remove] { background-color: red; color: #FFF; } 
@@ -30,7 +30,7 @@
 
     function addWith() {
       diff.innerHTML(sandbox, sandbox.innerHTML += `
-        <div>with worker</div>
+        <div>with worker &gla;</div>
       `, { enableWorker: true });
     }
 

diff --git a/test/unit/util/entities.js b/test/unit/util/entities.js
@@ -0,0 +1,17 @@
+/*import { decodeEntities } from '../../../lib/util/entities';
+
+describe.skip('Unit: DecodeEntities', function() {
+  it.only('can decode an unencoded string', function() {
+    var string = decodeEntities(`
+      <p></p>
+    `);
+
+    assert.equal(string.trim(), '<p></p>');
+  });
+
+  it('can decode an HTML5 encoded string', function() {
+    var string = decodeEntities(`&gla;`);
+    assert.equal(string, '⪥');
+  });
+});
+*/