@tko/binding.if - npm Package Compare versions

Comparing version 4.0.0-alpha9.0 to 4.0.0-beta1.0

dist/ConditionalBindingHandler.js

+// @tko/binding.if 🥊 4.0.0-beta1.0 ESM
+var __async = (__this, __arguments, generator) => {
+  return new Promise((resolve, reject) => {
+    var fulfilled = (value) => {
+      try {
+        step(generator.next(value));
+      } catch (e) {
+        reject(e);
+      }
+    };
+    var rejected = (value) => {
+      try {
+        step(generator.throw(value));
+      } catch (e) {
+        reject(e);
+      }
+    };
+    var step = (x) => x.done ? resolve(x.value) : Promise.resolve(x.value).then(fulfilled, rejected);
+    step((generator = generator.apply(__this, __arguments)).next());
+  });
+};
+import {
+  cloneNodes,
+  virtualElements,
+  cleanNode,
+  domData
+} from "@tko/utils";
+import {
+  dependencyDetection,
+  observable
+} from "@tko/observable";
+import {
+  applyBindingsToDescendants,
+  AsyncBindingHandler
+} from "@tko/bind";
+export default class ConditionalBindingHandler extends AsyncBindingHandler {
+  constructor(params) {
+    super(params);
+    this.hasElse = this.detectElse(this.$element);
+    const elseChainSatisfied = this.completesElseChain = observable();
+    domData.set(this.$element, "conditional", { elseChainSatisfied });
+  }
+  getIfElseNodes() {
+    if (this.ifElseNodes) {
+      return this.ifElseNodes;
+    }
+    if (dependencyDetection.getDependenciesCount() || this.hasElse) {
+      return this.cloneIfElseNodes(this.$element, this.hasElse);
+    }
+  }
+  render() {
+    const isFirstRender = !this.ifElseNodes;
+    const { shouldDisplay } = this.renderStatus();
+    this.ifElseNodes = this.getIfElseNodes() || {};
+    if (shouldDisplay) {
+      const useOriginalNodes = isFirstRender && !this.hasElse;
+      this.renderAndApplyBindings(this.ifElseNodes.ifNodes, useOriginalNodes);
+    } else if (this.hasElse) {
+      this.renderAndApplyBindings(this.ifElseNodes.elseNodes);
+    } else {
+      virtualElements.emptyNode(this.$element);
+    }
+  }
+  renderAndApplyBindings(nodes, useOriginalNodes) {
+    return __async(this, null, function* () {
+      if (!useOriginalNodes) {
+        virtualElements.setDomNodeChildren(this.$element, cloneNodes(nodes));
+      }
+      const bound = yield applyBindingsToDescendants(this.bindingContext, this.$element);
+      this.completeBinding(bound);
+    });
+  }
+  get elseChainIsAlreadySatisfied() {
+    return false;
+  }
+  isElseNode(node) {
+    return node.nodeType === 8 && node.nodeValue.trim().toLowerCase() === "else";
+  }
+  detectElse(element) {
+    var children = virtualElements.childNodes(element);
+    for (var i = 0, j = children.length; i < j; ++i) {
+      if (this.isElseNode(children[i])) {
+        return true;
+      }
+    }
+    return false;
+  }
+  cloneIfElseNodes(element, hasElse) {
+    const children = virtualElements.childNodes(element);
+    const ifNodes = [];
+    const elseNodes = [];
+    let target = ifNodes;
+    for (var i = 0, j = children.length; i < j; ++i) {
+      if (hasElse && this.isElseNode(children[i])) {
+        target = elseNodes;
+        hasElse = false;
+      } else {
+        target.push(cleanNode(children[i].cloneNode(true)));
+      }
+    }
+    return { ifNodes, elseNodes };
+  }
+  get controlsDescendants() {
+    return true;
+  }
+  static get allowVirtualElements() {
+    return true;
+  }
+}

dist/ConditionalBindingHandler.js.map

+{
+  "version": 3,
+  "sources": ["../src/ConditionalBindingHandler.ts"],
+  "sourcesContent": ["import {\n    cloneNodes, virtualElements, cleanNode, domData\n} from '@tko/utils'\n\nimport {\n    dependencyDetection, observable\n} from '@tko/observable'\n\nimport {\n    applyBindingsToDescendants, AsyncBindingHandler\n} from '@tko/bind'\n\n/**\n * Create a DOMbinding that controls DOM nodes presence\n *\n * Covers e.g.\n *\n * 1. DOM Nodes contents\n *\n * <div data-bind='if: x'>\n * <!-- else --> ... an optional 'if'\n * </div>\n *\n * 2. Virtual elements\n *\n * <!-- ko if: x -->\n * <!-- else -->\n * <!-- /ko -->\n *\n * 3. Else binding\n * <div data-bind='if: x'></div>\n * <div data-bind='else'></div>\n *\n * Requires `renderStatus` and `get bindingContext` to be overloaded,\n * and this.computed('render') must be called in the child constructor.\n */\nexport default class ConditionalBindingHandler extends AsyncBindingHandler {\n  constructor (params) {\n    super(params)\n    this.hasElse = this.detectElse(this.$element)\n    const elseChainSatisfied = this.completesElseChain = observable()\n    domData.set(this.$element, 'conditional', { elseChainSatisfied })\n  }\n\n  getIfElseNodes () {\n    if (this.ifElseNodes) { return this.ifElseNodes }\n    if (dependencyDetection.getDependenciesCount() || this.hasElse) {\n      return this.cloneIfElseNodes(this.$element, this.hasElse)\n    }\n  }\n\n  render () {\n    const isFirstRender = !this.ifElseNodes\n    const {shouldDisplay} = this.renderStatus()\n\n    // Save the nodes before we possibly remove them from the DOM.\n    this.ifElseNodes = this.getIfElseNodes() || {}\n\n    if (shouldDisplay) {\n      const useOriginalNodes = isFirstRender && !this.hasElse\n      this.renderAndApplyBindings(this.ifElseNodes.ifNodes, useOriginalNodes)\n    } else if (this.hasElse) {\n      this.renderAndApplyBindings(this.ifElseNodes.elseNodes)\n    } else {\n      virtualElements.emptyNode(this.$element)\n    }\n  }\n\n  async renderAndApplyBindings (nodes, useOriginalNodes) {\n    if (!useOriginalNodes) {\n      virtualElements.setDomNodeChildren(this.$element, cloneNodes(nodes))\n    }\n    const bound = await applyBindingsToDescendants(this.bindingContext, this.$element)\n    this.completeBinding(bound)\n  }\n\n  /**\n   * This may be truthy for the `else` binding.\n   */\n  get elseChainIsAlreadySatisfied () { return false }\n\n  /**\n   * Test a node for whether it represents an 'else' condition.\n   * @param  {HTMLElement}  node to be tested\n   * @return {Boolean}      true when\n   *\n   * Matches <!-- else -->\n   */\n  isElseNode (node) {\n    return node.nodeType === 8 &&\n          node.nodeValue.trim().toLowerCase() === 'else'\n  }\n\n  detectElse (element) {\n    var children = virtualElements.childNodes(element)\n    for (var i = 0, j = children.length; i < j; ++i) {\n      if (this.isElseNode(children[i])) { return true }\n    }\n    return false\n  }\n\n  /**\n   * Clone the nodes, returning `ifNodes`, `elseNodes`\n   * @param  {HTMLElement} element The nodes to be cloned\n   * @param  {boolean}    hasElse short-circuit to speed up the inner-loop.\n   * @return {object}         Containing the cloned nodes.\n   */\n  cloneIfElseNodes (element, hasElse) {\n    const children = virtualElements.childNodes(element)\n    const ifNodes = []\n    const elseNodes = []\n    let target = ifNodes\n\n    for (var i = 0, j = children.length; i < j; ++i) {\n      if (hasElse && this.isElseNode(children[i])) {\n        target = elseNodes\n        hasElse = false\n      } else {\n        target.push(cleanNode(children[i].cloneNode(true)))\n      }\n    }\n\n    return { ifNodes, elseNodes }\n  }\n\n  get controlsDescendants () { return true }\n  static get allowVirtualElements () { return true }\n}\n"],
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+  "names": []
+}

dist/else.js

+// @tko/binding.if 🥊 4.0.0-beta1.0 ESM
+import {
+  virtualElements,
+  domData
+} from "@tko/utils";
+import {
+  unwrap
+} from "@tko/observable";
+import {
+  IfBindingHandler
+} from "./ifUnless";
+export class ElseBindingHandler extends IfBindingHandler {
+  shouldDisplayIf() {
+    return super.shouldDisplayIf() || this.value === void 0;
+  }
+  get elseChainIsAlreadySatisfied() {
+    if (!this._elseChain) {
+      this._elseChain = this.readElseChain();
+    }
+    return unwrap(this._elseChain.elseChainSatisfied);
+  }
+  readElseChain() {
+    let node = this.$element;
+    do {
+      node = node.previousSibling;
+    } while (node && node.nodeType !== 1 && node.nodeType !== 8);
+    if (!node) {
+      return false;
+    }
+    if (node.nodeType === 8) {
+      node = virtualElements.previousSibling(node);
+    }
+    return domData.get(node, "conditional") || {};
+  }
+}

dist/else.js.map

+{
+  "version": 3,
+  "sources": ["../src/else.ts"],
+  "sourcesContent": ["import {\n    virtualElements, domData\n} from '@tko/utils'\n\nimport {\n    unwrap\n} from '@tko/observable'\n\nimport {\n  IfBindingHandler\n} from './ifUnless'\n\n/**\n * The `else` binding\n * (not to be mistaken for `<!-- else -->` inside if bindings.\n */\nexport class ElseBindingHandler extends IfBindingHandler {\n  shouldDisplayIf () {\n    return super.shouldDisplayIf() || this.value === undefined\n  }\n\n  /**\n   * Return any conditional that precedes the given node.\n   * @return {object}      { elseChainSatisfied: observable }\n   */\n  get elseChainIsAlreadySatisfied () {\n    if (!this._elseChain) { this._elseChain = this.readElseChain() }\n    return unwrap(this._elseChain.elseChainSatisfied)\n  }\n\n  readElseChain () {\n    let node = this.$element\n    do {\n      node = node.previousSibling\n    } while (node && node.nodeType !== 1 && node.nodeType !== 8)\n\n    if (!node) { return false }\n\n    if (node.nodeType === 8) {\n      node = virtualElements.previousSibling(node)\n    }\n\n    return domData.get(node, 'conditional') || {}\n  }\n}\n"],
+  "mappings": ";AAAA;AAAA;AAAA;AAAA;AAIA;AAAA;AAAA;AAIA;AAAA;AAAA;AAQO,aAAM,2BAA2B,iBAAiB;AAAA,EACvD,kBAAmB;AACjB,WAAO,MAAM,gBAAgB,KAAK,KAAK,UAAU;AAAA,EACnD;AAAA,MAMI,8BAA+B;AACjC,QAAI,CAAC,KAAK,YAAY;AAAE,WAAK,aAAa,KAAK,cAAc;AAAA,IAAE;AAC/D,WAAO,OAAO,KAAK,WAAW,kBAAkB;AAAA,EAClD;AAAA,EAEA,gBAAiB;AACf,QAAI,OAAO,KAAK;AAChB,OAAG;AACD,aAAO,KAAK;AAAA,IACd,SAAS,QAAQ,KAAK,aAAa,KAAK,KAAK,aAAa;AAE1D,QAAI,CAAC,MAAM;AAAE,aAAO;AAAA,IAAM;AAE1B,QAAI,KAAK,aAAa,GAAG;AACvB,aAAO,gBAAgB,gBAAgB,IAAI;AAAA,IAC7C;AAEA,WAAO,QAAQ,IAAI,MAAM,aAAa,KAAK,CAAC;AAAA,EAC9C;AACF;",
+  "names": []
+}

dist/ifUnless.js

+// @tko/binding.if 🥊 4.0.0-beta1.0 ESM
+import {
+  unwrap
+} from "@tko/observable";
+import ConditionalBindingHandler from "./ConditionalBindingHandler";
+export class IfBindingHandler extends ConditionalBindingHandler {
+  constructor(...args) {
+    super(...args);
+    this.ifCondition = this.computed(() => !!unwrap(this.value));
+    this.computed("render");
+  }
+  shouldDisplayIf() {
+    return this.ifCondition();
+  }
+  get bindingContext() {
+    return this.ifCondition.isActive() ? this.$context.extend(() => {
+      this.ifCondition();
+      return null;
+    }) : this.$context;
+  }
+  renderStatus() {
+    let shouldDisplay = this.shouldDisplayIf();
+    if (this.elseChainIsAlreadySatisfied) {
+      shouldDisplay = false;
+      this.completesElseChain(true);
+    } else {
+      this.completesElseChain(shouldDisplay);
+    }
+    return { shouldDisplay };
+  }
+}
+export class UnlessBindingHandler extends IfBindingHandler {
+  shouldDisplayIf() {
+    return !super.shouldDisplayIf();
+  }
+}

dist/ifUnless.js.map

+{
+  "version": 3,
+  "sources": ["../src/ifUnless.ts"],
+  "sourcesContent": ["\nimport {\n    unwrap\n} from '@tko/observable'\n\nimport ConditionalBindingHandler from './ConditionalBindingHandler'\n\n/**\n * For the `if:` binding.\n */\nexport class IfBindingHandler extends ConditionalBindingHandler {\n  constructor (...args) {\n    super(...args)\n    this.ifCondition = this.computed(() => !!unwrap(this.value))\n    this.computed('render')\n  }\n\n  shouldDisplayIf () {\n    return this.ifCondition()\n  }\n\n  get bindingContext () {\n    return this.ifCondition.isActive()\n      ? this.$context.extend(() => {\n        // Ensure that this context is dependant upon the conditional, so the\n        // order of binding application is: conditional before its children.\n        // See https://github.com/knockout/kn\n        // ockout/pull/2226\n        this.ifCondition()\n        return null\n      })\n      : this.$context\n  }\n\n  renderStatus () {\n    let shouldDisplay = this.shouldDisplayIf()\n\n    if (this.elseChainIsAlreadySatisfied) {\n      shouldDisplay = false\n      // needsRefresh = isFirstRender || this.didDisplayOnLastUpdate FIXME\n      this.completesElseChain(true)\n    } else {\n      this.completesElseChain(shouldDisplay)\n    }\n    return {shouldDisplay}\n  }\n}\n\nexport class UnlessBindingHandler extends IfBindingHandler {\n  shouldDisplayIf () { return !super.shouldDisplayIf() }\n}\n"],
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+  "names": []
+}

dist/index.js

+// @tko/binding.if 🥊 4.0.0-beta1.0 ESM
+import {
+  IfBindingHandler,
+  UnlessBindingHandler
+} from "./ifUnless";
+import {
+  WithBindingHandler
+} from "./with";
+import {
+  ElseBindingHandler
+} from "./else";
+export const bindings = {
+  "if": IfBindingHandler,
+  "with": WithBindingHandler,
+  ifnot: UnlessBindingHandler,
+  unless: UnlessBindingHandler,
+  "else": ElseBindingHandler,
+  "elseif": ElseBindingHandler
+};

dist/index.js.map

+{
+  "version": 3,
+  "sources": ["../src/index.ts"],
+  "sourcesContent": ["\nimport {\n  IfBindingHandler,\n  UnlessBindingHandler\n} from './ifUnless'\n\nimport {\n  WithBindingHandler\n} from './with'\n\nimport {\n  ElseBindingHandler\n} from './else'\n\nexport const bindings = {\n  'if': IfBindingHandler,\n  'with': WithBindingHandler,\n  ifnot: UnlessBindingHandler,\n  unless: UnlessBindingHandler,\n  'else': ElseBindingHandler,\n  'elseif': ElseBindingHandler\n}\n"],
+  "mappings": ";AACA;AAAA;AAAA;AAAA;AAKA;AAAA;AAAA;AAIA;AAAA;AAAA;AAIO,aAAM,WAAW;AAAA,EACtB,MAAM;AAAA,EACN,QAAQ;AAAA,EACR,OAAO;AAAA,EACP,QAAQ;AAAA,EACR,QAAQ;AAAA,EACR,UAAU;AACZ;",
+  "names": []
+}

dist/index.mjs

+// @tko/binding.if 🥊 4.0.0-beta1.0 MJS
+import {
+  IfBindingHandler,
+  UnlessBindingHandler
+} from "./ifUnless";
+import {
+  WithBindingHandler
+} from "./with";
+import {
+  ElseBindingHandler
+} from "./else";
+export const bindings = {
+  "if": IfBindingHandler,
+  "with": WithBindingHandler,
+  ifnot: UnlessBindingHandler,
+  unless: UnlessBindingHandler,
+  "else": ElseBindingHandler,
+  "elseif": ElseBindingHandler
+};

dist/index.mjs.map

+{
+  "version": 3,
+  "sources": ["../src/index.ts"],
+  "sourcesContent": ["\nimport {\n  IfBindingHandler,\n  UnlessBindingHandler\n} from './ifUnless'\n\nimport {\n  WithBindingHandler\n} from './with'\n\nimport {\n  ElseBindingHandler\n} from './else'\n\nexport const bindings = {\n  'if': IfBindingHandler,\n  'with': WithBindingHandler,\n  ifnot: UnlessBindingHandler,\n  unless: UnlessBindingHandler,\n  'else': ElseBindingHandler,\n  'elseif': ElseBindingHandler\n}\n"],
+  "mappings": ";AACA;AAAA;AAAA;AAAA;AAKA;AAAA;AAAA;AAIA;AAAA;AAAA;AAIO,aAAM,WAAW;AAAA,EACtB,MAAM;AAAA,EACN,QAAQ;AAAA,EACR,OAAO;AAAA,EACP,QAAQ;AAAA,EACR,QAAQ;AAAA,EACR,UAAU;AACZ;",
+  "names": []
+}

dist/with.js

+// @tko/binding.if 🥊 4.0.0-beta1.0 ESM
+import {
+  options
+} from "@tko/utils";
+import {
+  unwrap
+} from "@tko/observable";
+import ConditionalBindingHandler from "./ConditionalBindingHandler";
+export class WithBindingHandler extends ConditionalBindingHandler {
+  constructor(...args) {
+    super(...args);
+    this.asOption = this.allBindings.get("as");
+    const conditionalFn = this.asOption && !options.createChildContextWithAs ? () => Boolean(unwrap(this.value)) : () => unwrap(this.value);
+    this.conditional = this.computed(conditionalFn);
+    this.computed("render");
+  }
+  get bindingContext() {
+    if (!this.asOption) {
+      return this.$context.createChildContext(this.valueAccessor);
+    }
+    return options.createChildContextWithAs ? this.$context.createChildContext(this.value, this.asOption) : this.$context.extend({ [this.asOption]: this.value });
+  }
+  renderStatus() {
+    const shouldDisplay = Boolean(this.conditional());
+    return { shouldDisplay };
+  }
+}

dist/with.js.map

+{
+  "version": 3,
+  "sources": ["../src/with.ts"],
+  "sourcesContent": ["\nimport {\n  options\n} from '@tko/utils'\n\nimport {\n  unwrap\n} from '@tko/observable'\n\nimport ConditionalBindingHandler from './ConditionalBindingHandler'\n\n/**\n * The following fails somewhere in the `limit` functions of Observables i.e.\n * it's an issue related to async/deferUpdates.\n */\nexport class WithBindingHandler extends ConditionalBindingHandler {\n  constructor (...args) {\n    super(...args)\n    this.asOption = this.allBindings.get('as')\n\n    // If given `as`, reduce the condition to a boolean, so it does not\n    // change & refresh when the value is updated.\n    const conditionalFn = this.asOption && !options.createChildContextWithAs\n      ? () => Boolean(unwrap(this.value)) : () => unwrap(this.value)\n    this.conditional = this.computed(conditionalFn)\n\n    this.computed('render')\n  }\n\n  get bindingContext () {\n    if (!this.asOption) {\n      return this.$context.createChildContext(this.valueAccessor)\n    }\n    return options.createChildContextWithAs\n      ? this.$context.createChildContext(this.value, this.asOption)\n      : this.$context.extend({[this.asOption]: this.value})\n  }\n\n  renderStatus () {\n    const shouldDisplay = Boolean(this.conditional())\n    return { shouldDisplay }\n  }\n}\n"],
+  "mappings": ";AACA;AAAA;AAAA;AAIA;AAAA;AAAA;AAIA;AAMO,aAAM,2BAA2B,0BAA0B;AAAA,EAChE,eAAgB,MAAM;AACpB,UAAM,GAAG,IAAI;AACb,SAAK,WAAW,KAAK,YAAY,IAAI,IAAI;AAIzC,UAAM,gBAAgB,KAAK,YAAY,CAAC,QAAQ,2BAC5C,MAAM,QAAQ,OAAO,KAAK,KAAK,CAAC,IAAI,MAAM,OAAO,KAAK,KAAK;AAC/D,SAAK,cAAc,KAAK,SAAS,aAAa;AAE9C,SAAK,SAAS,QAAQ;AAAA,EACxB;AAAA,MAEI,iBAAkB;AACpB,QAAI,CAAC,KAAK,UAAU;AAClB,aAAO,KAAK,SAAS,mBAAmB,KAAK,aAAa;AAAA,IAC5D;AACA,WAAO,QAAQ,2BACX,KAAK,SAAS,mBAAmB,KAAK,OAAO,KAAK,QAAQ,IAC1D,KAAK,SAAS,OAAO,GAAE,KAAK,WAAW,KAAK,MAAK,CAAC;AAAA,EACxD;AAAA,EAEA,eAAgB;AACd,UAAM,gBAAgB,QAAQ,KAAK,YAAY,CAAC;AAChD,WAAO,EAAE,cAAc;AAAA,EACzB;AACF;",
+  "names": []
+}

package.json

 {
+  "version": "4.0.0-beta1.0",
   "name": "@tko/binding.if",
-  "version": "4.0.0-alpha9.0",
   "description": "TKO conditional (if/ifnot/unless/with/else) bindings",
@@ -12,3 +12,3 @@ "module": "dist/binding.if.js",
     "type": "git",
-    "url": "git+https://github.com/knockout/tko.binding.if.git"
+    "url": "git+https://github.com/knockout/tko.git"
   },
@@ -20,14 +20,14 @@ "keywords": [
   ],
-  "author": "Knockout",
+  "author": "The Knockout Team",
   "license": "MIT",
   "bugs": {
-    "url": "https://github.com/knockout/tko.binding.if/issues"
+    "url": "https://github.com/knockout/tko/issues"
   },
   "homepage": "https://tko.io",
   "dependencies": {
-    "@tko/bind": "^4.0.0-alpha9.0",
-    "@tko/computed": "^4.0.0-alpha8.0",
-    "@tko/observable": "^4.0.0-alpha8.0",
-    "@tko/utils": "^4.0.0-alpha8.0",
-    "tslib": "^1.8.0"
+    "@tko/bind": "^4.0.0-beta1.0",
+    "@tko/computed": "^4.0.0-beta1.0",
+    "@tko/observable": "^4.0.0-beta1.0",
+    "@tko/utils": "^4.0.0-beta1.0",
+    "tslib": "^2.2.0"
   },
@@ -39,26 +39,16 @@ "karma": {
   },
-  "__about__shared.package.json": "These properties are copied into all packages/*/package.json.  Run `yarn repackage`",
-  "standard": {
-    "env": [
-      "browser",
-      "jasmine",
-      "mocha"
-    ]
-  },
-  "scripts": {
-    "test": "npx karma start ../../karma.conf.js --once",
-    "build": "npx rollup -c ../../rollup.config.js",
-    "watch": "npx karma start ../../karma.conf.js",
-    "prepare": "npx rollup -c ../../rollup.config.js"
-  },
-  "publishConfig": {
-    "access": "public"
-  },
   "licenses": [
     {
       "type": "MIT",
-      "url": "http://www.opensource.org/licenses/mit-license.php"
+      "url": "https://opensource.org/licenses/MIT"
     }
   ],
-  "gitHead": "90cdb597db01d50725c567810af092e70a5b32d9"
+  "exports": {
+    ".": {
+      "require": "./dist/index.cjs",
+      "import": "./dist/index.js"
+    },
+    "./helpers/*": "./helpers/*"
+  },
+  "gitHead": "99114c4deded3fc5dbddd5c7c9c63c845a18263b"
 }

dist/binding.if.es6.js

-/*!
- * TKO conditional (if/ifnot/unless/with/else) bindings 🥊  @tko/binding.if@4.0.0-alpha9.0
- * (c) The Knockout.js Team - https://tko.io
- * License: MIT (http://www.opensource.org/licenses/mit-license.php)
- */
-
-import { cloneNodes, virtualElements, cleanNode, domData, options } from '@tko/utils';
-import { dependencyDetection, observable, unwrap } from '@tko/observable';
-import { applyBindingsToDescendants, AsyncBindingHandler } from '@tko/bind';
-
-/**
- * Create a DOMbinding that controls DOM nodes presence
- *
- * Covers e.g.
- *
- * 1. DOM Nodes contents
- *
- * <div data-bind='if: x'>
- * <!-- else --> ... an optional 'if'
- * </div>
- *
- * 2. Virtual elements
- *
- * <!-- ko if: x -->
- * <!-- else -->
- * <!-- /ko -->
- *
- * 3. Else binding
- * <div data-bind='if: x'></div>
- * <div data-bind='else'></div>
- *
- * Requires `renderStatus` and `get bindingContext` to be overloaded,
- * and this.computed('render') must be called in the child constructor.
- */
-class ConditionalBindingHandler extends AsyncBindingHandler {
-  constructor (params) {
-    super(params);
-    this.hasElse = this.detectElse(this.$element);
-    const elseChainSatisfied = this.completesElseChain = observable();
-    domData.set(this.$element, 'conditional', { elseChainSatisfied });
-  }
-
-  getIfElseNodes () {
-    if (this.ifElseNodes) { return this.ifElseNodes }
-    if (dependencyDetection.getDependenciesCount() || this.hasElse) {
-      return this.cloneIfElseNodes(this.$element, this.hasElse)
-    }
-  }
-
-  render () {
-    const isFirstRender = !this.ifElseNodes;
-    const {shouldDisplay} = this.renderStatus();
-
-    // Save the nodes before we possibly remove them from the DOM.
-    this.ifElseNodes = this.getIfElseNodes() || {};
-
-    if (shouldDisplay) {
-      const useOriginalNodes = isFirstRender && !this.hasElse;
-      this.renderAndApplyBindings(this.ifElseNodes.ifNodes, useOriginalNodes);
-    } else if (this.hasElse) {
-      this.renderAndApplyBindings(this.ifElseNodes.elseNodes);
-    } else {
-      virtualElements.emptyNode(this.$element);
-    }
-  }
-
-  async renderAndApplyBindings (nodes, useOriginalNodes) {
-    if (!useOriginalNodes) {
-      virtualElements.setDomNodeChildren(this.$element, cloneNodes(nodes));
-    }
-    const bound = await applyBindingsToDescendants(this.bindingContext, this.$element);
-    this.completeBinding(bound);
-  }
-
-  /**
-   * This may be truthy for the `else` binding.
-   */
-  get elseChainIsAlreadySatisfied () { return false }
-
-  /**
-   * Test a node for whether it represents an 'else' condition.
-   * @param  {HTMLElement}  node to be tested
-   * @return {Boolean}      true when
-   *
-   * Matches <!-- else -->
-   */
-  isElseNode (node) {
-    return node.nodeType === 8 &&
-          node.nodeValue.trim().toLowerCase() === 'else'
-  }
-
-  detectElse (element) {
-    var children = virtualElements.childNodes(element);
-    for (var i = 0, j = children.length; i < j; ++i) {
-      if (this.isElseNode(children[i])) { return true }
-    }
-    return false
-  }
-
-  /**
-   * Clone the nodes, returning `ifNodes`, `elseNodes`
-   * @param  {HTMLElement} element The nodes to be cloned
-   * @param  {boolean}    hasElse short-circuit to speed up the inner-loop.
-   * @return {object}         Containing the cloned nodes.
-   */
-  cloneIfElseNodes (element, hasElse) {
-    const children = virtualElements.childNodes(element);
-    const ifNodes = [];
-    const elseNodes = [];
-    let target = ifNodes;
-
-    for (var i = 0, j = children.length; i < j; ++i) {
-      if (hasElse && this.isElseNode(children[i])) {
-        target = elseNodes;
-        hasElse = false;
-      } else {
-        target.push(cleanNode(children[i].cloneNode(true)));
-      }
-    }
-
-    return { ifNodes, elseNodes }
-  }
-
-  get controlsDescendants () { return true }
-  static get allowVirtualElements () { return true }
-}
-
-/**
- * For the `if:` binding.
- */
-class IfBindingHandler extends ConditionalBindingHandler {
-  constructor (...args) {
-    super(...args);
-    this.ifCondition = this.computed(() => !!unwrap(this.value));
-    this.computed('render');
-  }
-
-  shouldDisplayIf () {
-    return this.ifCondition()
-  }
-
-  get bindingContext () {
-    return this.ifCondition.isActive()
-      ? this.$context.extend(() => {
-        // Ensure that this context is dependant upon the conditional, so the
-        // order of binding application is: conditional before its children.
-        // See https://github.com/knockout/kn
-        // ockout/pull/2226
-        this.ifCondition();
-        return null
-      })
-      : this.$context
-  }
-
-  renderStatus () {
-    let shouldDisplay = this.shouldDisplayIf();
-
-    if (this.elseChainIsAlreadySatisfied) {
-      shouldDisplay = false;
-      // needsRefresh = isFirstRender || this.didDisplayOnLastUpdate FIXME
-      this.completesElseChain(true);
-    } else {
-      this.completesElseChain(shouldDisplay);
-    }
-    return {shouldDisplay}
-  }
-}
-
-class UnlessBindingHandler extends IfBindingHandler {
-  shouldDisplayIf () { return !super.shouldDisplayIf() }
-}
-
-/**
- * The following fails somewhere in the `limit` functions of Observables i.e.
- * it's an issue related to async/deferUpdates.
- */
-class WithBindingHandler extends ConditionalBindingHandler {
-  constructor (...args) {
-    super(...args);
-    this.asOption = this.allBindings.get('as');
-
-    // If given `as`, reduce the condition to a boolean, so it does not
-    // change & refresh when the value is updated.
-    const conditionalFn = this.asOption && !options.createChildContextWithAs
-      ? () => Boolean(unwrap(this.value)) : () => unwrap(this.value);
-    this.conditional = this.computed(conditionalFn);
-
-    this.computed('render');
-  }
-
-  get bindingContext () {
-    if (!this.asOption) {
-      return this.$context.createChildContext(this.valueAccessor)
-    }
-    return options.createChildContextWithAs
-      ? this.$context.createChildContext(this.value, this.asOption)
-      : this.$context.extend({[this.asOption]: this.value})
-  }
-
-  renderStatus () {
-    const shouldDisplay = Boolean(this.conditional());
-    return { shouldDisplay }
-  }
-}
-
-/**
- * The `else` binding
- * (not to be mistaken for `<!-- else -->` inside if bindings.
- */
-class ElseBindingHandler extends IfBindingHandler {
-  shouldDisplayIf () {
-    return super.shouldDisplayIf() || this.value === undefined
-  }
-
-  /**
-   * Return any conditional that precedes the given node.
-   * @return {object}      { elseChainSatisfied: observable }
-   */
-  get elseChainIsAlreadySatisfied () {
-    if (!this._elseChain) { this._elseChain = this.readElseChain(); }
-    return unwrap(this._elseChain.elseChainSatisfied)
-  }
-
-  readElseChain () {
-    let node = this.$element;
-    do {
-      node = node.previousSibling;
-    } while (node && node.nodeType !== 1 && node.nodeType !== 8)
-
-    if (!node) { return false }
-
-    if (node.nodeType === 8) {
-      node = virtualElements.previousSibling(node);
-    }
-
-    return domData.get(node, 'conditional') || {}
-  }
-}
-
-const bindings = {
-  'if': IfBindingHandler,
-  'with': WithBindingHandler,
-  ifnot: UnlessBindingHandler,
-  unless: UnlessBindingHandler,
-  'else': ElseBindingHandler,
-  'elseif': ElseBindingHandler
-};
-
-export { bindings };
-//# sourceMappingURL=binding.if.es6.js.map

dist/binding.if.es6.js.map

-{"version":3,"file":"binding.if.es6.js","sources":["../src/ConditionalBindingHandler.js","../src/ifUnless.js","../src/with.js","../src/else.js","../src/index.js"],"sourcesContent":["import {\n    cloneNodes, virtualElements, cleanNode, domData\n} from '@tko/utils'\n\nimport {\n    dependencyDetection, observable\n} from '@tko/observable'\n\nimport {\n    applyBindingsToDescendants, AsyncBindingHandler\n} from '@tko/bind'\n\n/**\n * Create a DOMbinding that controls DOM nodes presence\n *\n * Covers e.g.\n *\n * 1. DOM Nodes contents\n *\n * <div data-bind='if: x'>\n * <!-- else --> ... an optional 'if'\n * </div>\n *\n * 2. Virtual elements\n *\n * <!-- ko if: x -->\n * <!-- else -->\n * <!-- /ko -->\n *\n * 3. Else binding\n * <div data-bind='if: x'></div>\n * <div data-bind='else'></div>\n *\n * Requires `renderStatus` and `get bindingContext` to be overloaded,\n * and this.computed('render') must be called in the child constructor.\n */\nexport default class ConditionalBindingHandler extends AsyncBindingHandler {\n  constructor (params) {\n    super(params)\n    this.hasElse = this.detectElse(this.$element)\n    const elseChainSatisfied = this.completesElseChain = observable()\n    domData.set(this.$element, 'conditional', { elseChainSatisfied })\n  }\n\n  getIfElseNodes () {\n    if (this.ifElseNodes) { return this.ifElseNodes }\n    if (dependencyDetection.getDependenciesCount() || this.hasElse) {\n      return this.cloneIfElseNodes(this.$element, this.hasElse)\n    }\n  }\n\n  render () {\n    const isFirstRender = !this.ifElseNodes\n    const {shouldDisplay} = this.renderStatus()\n\n    // Save the nodes before we possibly remove them from the DOM.\n    this.ifElseNodes = this.getIfElseNodes() || {}\n\n    if (shouldDisplay) {\n      const useOriginalNodes = isFirstRender && !this.hasElse\n      this.renderAndApplyBindings(this.ifElseNodes.ifNodes, useOriginalNodes)\n    } else if (this.hasElse) {\n      this.renderAndApplyBindings(this.ifElseNodes.elseNodes)\n    } else {\n      virtualElements.emptyNode(this.$element)\n    }\n  }\n\n  async renderAndApplyBindings (nodes, useOriginalNodes) {\n    if (!useOriginalNodes) {\n      virtualElements.setDomNodeChildren(this.$element, cloneNodes(nodes))\n    }\n    const bound = await applyBindingsToDescendants(this.bindingContext, this.$element)\n    this.completeBinding(bound)\n  }\n\n  /**\n   * This may be truthy for the `else` binding.\n   */\n  get elseChainIsAlreadySatisfied () { return false }\n\n  /**\n   * Test a node for whether it represents an 'else' condition.\n   * @param  {HTMLElement}  node to be tested\n   * @return {Boolean}      true when\n   *\n   * Matches <!-- else -->\n   */\n  isElseNode (node) {\n    return node.nodeType === 8 &&\n          node.nodeValue.trim().toLowerCase() === 'else'\n  }\n\n  detectElse (element) {\n    var children = virtualElements.childNodes(element)\n    for (var i = 0, j = children.length; i < j; ++i) {\n      if (this.isElseNode(children[i])) { return true }\n    }\n    return false\n  }\n\n  /**\n   * Clone the nodes, returning `ifNodes`, `elseNodes`\n   * @param  {HTMLElement} element The nodes to be cloned\n   * @param  {boolean}    hasElse short-circuit to speed up the inner-loop.\n   * @return {object}         Containing the cloned nodes.\n   */\n  cloneIfElseNodes (element, hasElse) {\n    const children = virtualElements.childNodes(element)\n    const ifNodes = []\n    const elseNodes = []\n    let target = ifNodes\n\n    for (var i = 0, j = children.length; i < j; ++i) {\n      if (hasElse && this.isElseNode(children[i])) {\n        target = elseNodes\n        hasElse = false\n      } else {\n        target.push(cleanNode(children[i].cloneNode(true)))\n      }\n    }\n\n    return { ifNodes, elseNodes }\n  }\n\n  get controlsDescendants () { return true }\n  static get allowVirtualElements () { return true }\n}\n","\nimport {\n    unwrap\n} from '@tko/observable'\n\nimport ConditionalBindingHandler from './ConditionalBindingHandler'\n\n/**\n * For the `if:` binding.\n */\nexport class IfBindingHandler extends ConditionalBindingHandler {\n  constructor (...args) {\n    super(...args)\n    this.ifCondition = this.computed(() => !!unwrap(this.value))\n    this.computed('render')\n  }\n\n  shouldDisplayIf () {\n    return this.ifCondition()\n  }\n\n  get bindingContext () {\n    return this.ifCondition.isActive()\n      ? this.$context.extend(() => {\n        // Ensure that this context is dependant upon the conditional, so the\n        // order of binding application is: conditional before its children.\n        // See https://github.com/knockout/kn\n        // ockout/pull/2226\n        this.ifCondition()\n        return null\n      })\n      : this.$context\n  }\n\n  renderStatus () {\n    let shouldDisplay = this.shouldDisplayIf()\n\n    if (this.elseChainIsAlreadySatisfied) {\n      shouldDisplay = false\n      // needsRefresh = isFirstRender || this.didDisplayOnLastUpdate FIXME\n      this.completesElseChain(true)\n    } else {\n      this.completesElseChain(shouldDisplay)\n    }\n    return {shouldDisplay}\n  }\n}\n\nexport class UnlessBindingHandler extends IfBindingHandler {\n  shouldDisplayIf () { return !super.shouldDisplayIf() }\n}\n","\nimport {\n  options\n} from '@tko/utils'\n\nimport {\n  unwrap\n} from '@tko/observable'\n\nimport ConditionalBindingHandler from './ConditionalBindingHandler'\n\n/**\n * The following fails somewhere in the `limit` functions of Observables i.e.\n * it's an issue related to async/deferUpdates.\n */\nexport class WithBindingHandler extends ConditionalBindingHandler {\n  constructor (...args) {\n    super(...args)\n    this.asOption = this.allBindings.get('as')\n\n    // If given `as`, reduce the condition to a boolean, so it does not\n    // change & refresh when the value is updated.\n    const conditionalFn = this.asOption && !options.createChildContextWithAs\n      ? () => Boolean(unwrap(this.value)) : () => unwrap(this.value)\n    this.conditional = this.computed(conditionalFn)\n\n    this.computed('render')\n  }\n\n  get bindingContext () {\n    if (!this.asOption) {\n      return this.$context.createChildContext(this.valueAccessor)\n    }\n    return options.createChildContextWithAs\n      ? this.$context.createChildContext(this.value, this.asOption)\n      : this.$context.extend({[this.asOption]: this.value})\n  }\n\n  renderStatus () {\n    const shouldDisplay = Boolean(this.conditional())\n    return { shouldDisplay }\n  }\n}\n","import {\n    virtualElements, domData\n} from '@tko/utils'\n\nimport {\n    unwrap\n} from '@tko/observable'\n\nimport {\n  IfBindingHandler\n} from './ifUnless.js'\n\n/**\n * The `else` binding\n * (not to be mistaken for `<!-- else -->` inside if bindings.\n */\nexport class ElseBindingHandler extends IfBindingHandler {\n  shouldDisplayIf () {\n    return super.shouldDisplayIf() || this.value === undefined\n  }\n\n  /**\n   * Return any conditional that precedes the given node.\n   * @return {object}      { elseChainSatisfied: observable }\n   */\n  get elseChainIsAlreadySatisfied () {\n    if (!this._elseChain) { this._elseChain = this.readElseChain() }\n    return unwrap(this._elseChain.elseChainSatisfied)\n  }\n\n  readElseChain () {\n    let node = this.$element\n    do {\n      node = node.previousSibling\n    } while (node && node.nodeType !== 1 && node.nodeType !== 8)\n\n    if (!node) { return false }\n\n    if (node.nodeType === 8) {\n      node = virtualElements.previousSibling(node)\n    }\n\n    return domData.get(node, 'conditional') || {}\n  }\n}\n","\nimport {\n  IfBindingHandler,\n  UnlessBindingHandler\n} from './ifUnless'\n\nimport {\n  WithBindingHandler\n} from './with'\n\nimport {\n  ElseBindingHandler\n} from './else'\n\nexport const bindings = {\n  'if': IfBindingHandler,\n  'with': WithBindingHandler,\n  ifnot: UnlessBindingHandler,\n  unless: UnlessBindingHandler,\n  'else': ElseBindingHandler,\n  'elseif': 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dist/binding.if.js

-/*!
- * TKO conditional (if/ifnot/unless/with/else) bindings 🥊  @tko/binding.if@4.0.0-alpha9.0
- * (c) The Knockout.js Team - https://tko.io
- * License: MIT (http://www.opensource.org/licenses/mit-license.php)
- */
-
-import { cloneNodes, virtualElements, cleanNode, domData, options } from '@tko/utils';
-import { dependencyDetection, observable, unwrap } from '@tko/observable';
-import { applyBindingsToDescendants, AsyncBindingHandler } from '@tko/bind';
-
-/*! *****************************************************************************
-Copyright (c) Microsoft Corporation. All rights reserved.
-Licensed under the Apache License, Version 2.0 (the "License"); you may not use
-this file except in compliance with the License. You may obtain a copy of the
-License at http://www.apache.org/licenses/LICENSE-2.0
-
-THIS CODE IS PROVIDED ON AN *AS IS* BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
-KIND, EITHER EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION ANY IMPLIED
-WARRANTIES OR CONDITIONS OF TITLE, FITNESS FOR A PARTICULAR PURPOSE,
-MERCHANTABLITY OR NON-INFRINGEMENT.
-
-See the Apache Version 2.0 License for specific language governing permissions
-and limitations under the License.
-***************************************************************************** */
-/* global Reflect, Promise */
-
-var extendStatics = function(d, b) {
-    extendStatics = Object.setPrototypeOf ||
-        ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-        function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
-    return extendStatics(d, b);
-};
-
-function __extends(d, b) {
-    extendStatics(d, b);
-    function __() { this.constructor = d; }
-    d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
-}
-
-function __awaiter(thisArg, _arguments, P, generator) {
-    return new (P || (P = Promise))(function (resolve, reject) {
-        function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
-        function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
-        function step(result) { result.done ? resolve(result.value) : new P(function (resolve) { resolve(result.value); }).then(fulfilled, rejected); }
-        step((generator = generator.apply(thisArg, _arguments || [])).next());
-    });
-}
-
-function __generator(thisArg, body) {
-    var _ = { label: 0, sent: function() { if (t[0] & 1) throw t[1]; return t[1]; }, trys: [], ops: [] }, f, y, t, g;
-    return g = { next: verb(0), "throw": verb(1), "return": verb(2) }, typeof Symbol === "function" && (g[Symbol.iterator] = function() { return this; }), g;
-    function verb(n) { return function (v) { return step([n, v]); }; }
-    function step(op) {
-        if (f) throw new TypeError("Generator is already executing.");
-        while (_) try {
-            if (f = 1, y && (t = op[0] & 2 ? y["return"] : op[0] ? y["throw"] || ((t = y["return"]) && t.call(y), 0) : y.next) && !(t = t.call(y, op[1])).done) return t;
-            if (y = 0, t) op = [op[0] & 2, t.value];
-            switch (op[0]) {
-                case 0: case 1: t = op; break;
-                case 4: _.label++; return { value: op[1], done: false };
-                case 5: _.label++; y = op[1]; op = [0]; continue;
-                case 7: op = _.ops.pop(); _.trys.pop(); continue;
-                default:
-                    if (!(t = _.trys, t = t.length > 0 && t[t.length - 1]) && (op[0] === 6 || op[0] === 2)) { _ = 0; continue; }
-                    if (op[0] === 3 && (!t || (op[1] > t[0] && op[1] < t[3]))) { _.label = op[1]; break; }
-                    if (op[0] === 6 && _.label < t[1]) { _.label = t[1]; t = op; break; }
-                    if (t && _.label < t[2]) { _.label = t[2]; _.ops.push(op); break; }
-                    if (t[2]) _.ops.pop();
-                    _.trys.pop(); continue;
-            }
-            op = body.call(thisArg, _);
-        } catch (e) { op = [6, e]; y = 0; } finally { f = t = 0; }
-        if (op[0] & 5) throw op[1]; return { value: op[0] ? op[1] : void 0, done: true };
-    }
-}
-
-function __read(o, n) {
-    var m = typeof Symbol === "function" && o[Symbol.iterator];
-    if (!m) return o;
-    var i = m.call(o), r, ar = [], e;
-    try {
-        while ((n === void 0 || n-- > 0) && !(r = i.next()).done) ar.push(r.value);
-    }
-    catch (error) { e = { error: error }; }
-    finally {
-        try {
-            if (r && !r.done && (m = i["return"])) m.call(i);
-        }
-        finally { if (e) throw e.error; }
-    }
-    return ar;
-}
-
-function __spread() {
-    for (var ar = [], i = 0; i < arguments.length; i++)
-        ar = ar.concat(__read(arguments[i]));
-    return ar;
-}
-
-/**
- * Create a DOMbinding that controls DOM nodes presence
- *
- * Covers e.g.
- *
- * 1. DOM Nodes contents
- *
- * <div data-bind='if: x'>
- * <!-- else --> ... an optional 'if'
- * </div>
- *
- * 2. Virtual elements
- *
- * <!-- ko if: x -->
- * <!-- else -->
- * <!-- /ko -->
- *
- * 3. Else binding
- * <div data-bind='if: x'></div>
- * <div data-bind='else'></div>
- *
- * Requires `renderStatus` and `get bindingContext` to be overloaded,
- * and this.computed('render') must be called in the child constructor.
- */
-var ConditionalBindingHandler = /** @class */ (function (_super) {
-    __extends(ConditionalBindingHandler, _super);
-    function ConditionalBindingHandler(params) {
-        var _this = _super.call(this, params) || this;
-        _this.hasElse = _this.detectElse(_this.$element);
-        var elseChainSatisfied = _this.completesElseChain = observable();
-        domData.set(_this.$element, 'conditional', { elseChainSatisfied: elseChainSatisfied });
-        return _this;
-    }
-    ConditionalBindingHandler.prototype.getIfElseNodes = function () {
-        if (this.ifElseNodes) {
-            return this.ifElseNodes;
-        }
-        if (dependencyDetection.getDependenciesCount() || this.hasElse) {
-            return this.cloneIfElseNodes(this.$element, this.hasElse);
-        }
-    };
-    ConditionalBindingHandler.prototype.render = function () {
-        var isFirstRender = !this.ifElseNodes;
-        var shouldDisplay = this.renderStatus().shouldDisplay;
-        // Save the nodes before we possibly remove them from the DOM.
-        this.ifElseNodes = this.getIfElseNodes() || {};
-        if (shouldDisplay) {
-            var useOriginalNodes = isFirstRender && !this.hasElse;
-            this.renderAndApplyBindings(this.ifElseNodes.ifNodes, useOriginalNodes);
-        }
-        else if (this.hasElse) {
-            this.renderAndApplyBindings(this.ifElseNodes.elseNodes);
-        }
-        else {
-            virtualElements.emptyNode(this.$element);
-        }
-    };
-    ConditionalBindingHandler.prototype.renderAndApplyBindings = function (nodes, useOriginalNodes) {
-        return __awaiter(this, void 0, void 0, function () {
-            var bound;
-            return __generator(this, function (_a) {
-                switch (_a.label) {
-                    case 0:
-                        if (!useOriginalNodes) {
-                            virtualElements.setDomNodeChildren(this.$element, cloneNodes(nodes));
-                        }
-                        return [4 /*yield*/, applyBindingsToDescendants(this.bindingContext, this.$element)];
-                    case 1:
-                        bound = _a.sent();
-                        this.completeBinding(bound);
-                        return [2 /*return*/];
-                }
-            });
-        });
-    };
-    Object.defineProperty(ConditionalBindingHandler.prototype, "elseChainIsAlreadySatisfied", {
-        /**
-         * This may be truthy for the `else` binding.
-         */
-        get: function () { return false; },
-        enumerable: true,
-        configurable: true
-    });
-    /**
-     * Test a node for whether it represents an 'else' condition.
-     * @param  {HTMLElement}  node to be tested
-     * @return {Boolean}      true when
-     *
-     * Matches <!-- else -->
-     */
-    ConditionalBindingHandler.prototype.isElseNode = function (node) {
-        return node.nodeType === 8 &&
-            node.nodeValue.trim().toLowerCase() === 'else';
-    };
-    ConditionalBindingHandler.prototype.detectElse = function (element) {
-        var children = virtualElements.childNodes(element);
-        for (var i = 0, j = children.length; i < j; ++i) {
-            if (this.isElseNode(children[i])) {
-                return true;
-            }
-        }
-        return false;
-    };
-    /**
-     * Clone the nodes, returning `ifNodes`, `elseNodes`
-     * @param  {HTMLElement} element The nodes to be cloned
-     * @param  {boolean}    hasElse short-circuit to speed up the inner-loop.
-     * @return {object}         Containing the cloned nodes.
-     */
-    ConditionalBindingHandler.prototype.cloneIfElseNodes = function (element, hasElse) {
-        var children = virtualElements.childNodes(element);
-        var ifNodes = [];
-        var elseNodes = [];
-        var target = ifNodes;
-        for (var i = 0, j = children.length; i < j; ++i) {
-            if (hasElse && this.isElseNode(children[i])) {
-                target = elseNodes;
-                hasElse = false;
-            }
-            else {
-                target.push(cleanNode(children[i].cloneNode(true)));
-            }
-        }
-        return { ifNodes: ifNodes, elseNodes: elseNodes };
-    };
-    Object.defineProperty(ConditionalBindingHandler.prototype, "controlsDescendants", {
-        get: function () { return true; },
-        enumerable: true,
-        configurable: true
-    });
-    Object.defineProperty(ConditionalBindingHandler, "allowVirtualElements", {
-        get: function () { return true; },
-        enumerable: true,
-        configurable: true
-    });
-    return ConditionalBindingHandler;
-}(AsyncBindingHandler));
-
-/**
- * For the `if:` binding.
- */
-var IfBindingHandler = /** @class */ (function (_super) {
-    __extends(IfBindingHandler, _super);
-    function IfBindingHandler() {
-        var args = [];
-        for (var _i = 0; _i < arguments.length; _i++) {
-            args[_i] = arguments[_i];
-        }
-        var _this = _super.apply(this, __spread(args)) || this;
-        _this.ifCondition = _this.computed(function () { return !!unwrap(_this.value); });
-        _this.computed('render');
-        return _this;
-    }
-    IfBindingHandler.prototype.shouldDisplayIf = function () {
-        return this.ifCondition();
-    };
-    Object.defineProperty(IfBindingHandler.prototype, "bindingContext", {
-        get: function () {
-            var _this = this;
-            return this.ifCondition.isActive()
-                ? this.$context.extend(function () {
-                    // Ensure that this context is dependant upon the conditional, so the
-                    // order of binding application is: conditional before its children.
-                    // See https://github.com/knockout/kn
-                    // ockout/pull/2226
-                    _this.ifCondition();
-                    return null;
-                })
-                : this.$context;
-        },
-        enumerable: true,
-        configurable: true
-    });
-    IfBindingHandler.prototype.renderStatus = function () {
-        var shouldDisplay = this.shouldDisplayIf();
-        if (this.elseChainIsAlreadySatisfied) {
-            shouldDisplay = false;
-            // needsRefresh = isFirstRender || this.didDisplayOnLastUpdate FIXME
-            this.completesElseChain(true);
-        }
-        else {
-            this.completesElseChain(shouldDisplay);
-        }
-        return { shouldDisplay: shouldDisplay };
-    };
-    return IfBindingHandler;
-}(ConditionalBindingHandler));
-var UnlessBindingHandler = /** @class */ (function (_super) {
-    __extends(UnlessBindingHandler, _super);
-    function UnlessBindingHandler() {
-        return _super !== null && _super.apply(this, arguments) || this;
-    }
-    UnlessBindingHandler.prototype.shouldDisplayIf = function () { return !_super.prototype.shouldDisplayIf.call(this); };
-    return UnlessBindingHandler;
-}(IfBindingHandler));
-
-/**
- * The following fails somewhere in the `limit` functions of Observables i.e.
- * it's an issue related to async/deferUpdates.
- */
-var WithBindingHandler = /** @class */ (function (_super) {
-    __extends(WithBindingHandler, _super);
-    function WithBindingHandler() {
-        var args = [];
-        for (var _i = 0; _i < arguments.length; _i++) {
-            args[_i] = arguments[_i];
-        }
-        var _this = _super.apply(this, __spread(args)) || this;
-        _this.asOption = _this.allBindings.get('as');
-        // If given `as`, reduce the condition to a boolean, so it does not
-        // change & refresh when the value is updated.
-        var conditionalFn = _this.asOption && !options.createChildContextWithAs
-            ? function () { return Boolean(unwrap(_this.value)); } : function () { return unwrap(_this.value); };
-        _this.conditional = _this.computed(conditionalFn);
-        _this.computed('render');
-        return _this;
-    }
-    Object.defineProperty(WithBindingHandler.prototype, "bindingContext", {
-        get: function () {
-            var _a;
-            if (!this.asOption) {
-                return this.$context.createChildContext(this.valueAccessor);
-            }
-            return options.createChildContextWithAs
-                ? this.$context.createChildContext(this.value, this.asOption)
-                : this.$context.extend((_a = {}, _a[this.asOption] = this.value, _a));
-        },
-        enumerable: true,
-        configurable: true
-    });
-    WithBindingHandler.prototype.renderStatus = function () {
-        var shouldDisplay = Boolean(this.conditional());
-        return { shouldDisplay: shouldDisplay };
-    };
-    return WithBindingHandler;
-}(ConditionalBindingHandler));
-
-/**
- * The `else` binding
- * (not to be mistaken for `<!-- else -->` inside if bindings.
- */
-var ElseBindingHandler = /** @class */ (function (_super) {
-    __extends(ElseBindingHandler, _super);
-    function ElseBindingHandler() {
-        return _super !== null && _super.apply(this, arguments) || this;
-    }
-    ElseBindingHandler.prototype.shouldDisplayIf = function () {
-        return _super.prototype.shouldDisplayIf.call(this) || this.value === undefined;
-    };
-    Object.defineProperty(ElseBindingHandler.prototype, "elseChainIsAlreadySatisfied", {
-        /**
-         * Return any conditional that precedes the given node.
-         * @return {object}      { elseChainSatisfied: observable }
-         */
-        get: function () {
-            if (!this._elseChain) {
-                this._elseChain = this.readElseChain();
-            }
-            return unwrap(this._elseChain.elseChainSatisfied);
-        },
-        enumerable: true,
-        configurable: true
-    });
-    ElseBindingHandler.prototype.readElseChain = function () {
-        var node = this.$element;
-        do {
-            node = node.previousSibling;
-        } while (node && node.nodeType !== 1 && node.nodeType !== 8);
-        if (!node) {
-            return false;
-        }
-        if (node.nodeType === 8) {
-            node = virtualElements.previousSibling(node);
-        }
-        return domData.get(node, 'conditional') || {};
-    };
-    return ElseBindingHandler;
-}(IfBindingHandler));
-
-var bindings = {
-    'if': IfBindingHandler,
-    'with': WithBindingHandler,
-    ifnot: UnlessBindingHandler,
-    unless: UnlessBindingHandler,
-    'else': ElseBindingHandler,
-    'elseif': ElseBindingHandler
-};
-
-export { bindings };
-//# sourceMappingURL=binding.if.js.map

dist/binding.if.js.map

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New alerts

Major refactor

Supply chain risk

Package has recently undergone a major refactor. It may be unstable or indicate significant internal changes. Use caution when updating to versions that include significant changes.

Found 1 instance in 1 package

Long strings

Supply chain risk

Contains long string literals, which may be a sign of obfuscated or packed code.

Found 1 instance in 1 package

Fixed alerts

Long strings

Supply chain risk

Contains long string literals, which may be a sign of obfuscated or packed code.

Found 1 instance in 1 package

Mixed license

License

Package contains multiple licenses.

Found 1 instance in 1 package

Improved metrics

Total package byte prevSize

300367

447.8%

Number of package files

16

166.67%

Number of low license alerts

0

-100%

Lines of code

3094

424.41%

Worsened metrics

Number of low supply chain risk alerts

3

50%

Number of medium supply chain risk alerts

1

Infinity%

Dependency changes

• + Added

  tslib@2.8.1
  (transitive)

• - Removed

  tslib@1.14.1
  (transitive)

• Updated

  @tko/bind@^4.0.0-beta1.0

• Updated

  @tko/computed@^4.0.0-beta1.0

• Updated

  @tko/observable@^4.0.0-beta1.0

• Updated

  @tko/utils@^4.0.0-beta1.0

• Updated

  tslib@^2.2.0