@glimmer/runtime
Version:
Minimal runtime needed to render Glimmer templates
549 lines (434 loc) • 56 kB
JavaScript
function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }
function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }
function _inheritsLoose(subClass, superClass) { subClass.prototype = Object.create(superClass.prototype); subClass.prototype.constructor = subClass; subClass.__proto__ = superClass; }
import { assert } from '@glimmer/util';
import { ConcreteBounds, CursorImpl } from '../bounds';
import { CURSOR_STACK, NewElementBuilder, RemoteLiveBlock } from './element-builder';
export var SERIALIZATION_FIRST_NODE_STRING = '%+b:0%';
export function isSerializationFirstNode(node) {
return node.nodeValue === SERIALIZATION_FIRST_NODE_STRING;
}
export var RehydratingCursor = /*#__PURE__*/function (_CursorImpl) {
_inheritsLoose(RehydratingCursor, _CursorImpl);
function RehydratingCursor(element, nextSibling, startingBlockDepth) {
var _this;
_this = _CursorImpl.call(this, element, nextSibling) || this;
_this.startingBlockDepth = startingBlockDepth;
_this.candidate = null;
_this.injectedOmittedNode = false;
_this.openBlockDepth = startingBlockDepth - 1;
return _this;
}
return RehydratingCursor;
}(CursorImpl);
export var RehydrateBuilder = /*#__PURE__*/function (_NewElementBuilder) {
_inheritsLoose(RehydrateBuilder, _NewElementBuilder);
function RehydrateBuilder(env, parentNode, nextSibling) {
var _this2;
_this2 = _NewElementBuilder.call(this, env, parentNode, nextSibling) || this;
_this2.unmatchedAttributes = null;
_this2.blockDepth = 0;
if (nextSibling) throw new Error('Rehydration with nextSibling not supported');
var node = _this2.currentCursor.element.firstChild;
while (node !== null) {
if (isOpenBlock(node)) {
break;
}
node = node.nextSibling;
}
false && assert(node, 'Must have opening comment for rehydration.');
_this2.candidate = node;
var startingBlockOffset = getBlockDepth(node);
if (startingBlockOffset !== 0) {
// We are rehydrating from a partial tree and not the root component
// We need to add an extra block before the first block to rehydrate correctly
// The extra block is needed since the renderComponent API creates a synthetic component invocation which generates the extra block
var newBlockDepth = startingBlockOffset - 1;
var newCandidate = _this2.dom.createComment("%+b:" + newBlockDepth + "%");
node.parentNode.insertBefore(newCandidate, _this2.candidate);
var closingNode = node.nextSibling;
while (closingNode !== null) {
if (isCloseBlock(closingNode) && getBlockDepth(closingNode) === startingBlockOffset) {
break;
}
closingNode = closingNode.nextSibling;
}
false && assert(closingNode, 'Must have closing comment for starting block comment');
var newClosingBlock = _this2.dom.createComment("%-b:" + newBlockDepth + "%");
node.parentNode.insertBefore(newClosingBlock, closingNode.nextSibling);
_this2.candidate = newCandidate;
_this2.startingBlockOffset = newBlockDepth;
} else {
_this2.startingBlockOffset = 0;
}
return _this2;
}
var _proto = RehydrateBuilder.prototype;
_proto.disableRehydration = function disableRehydration(nextSibling) {
var currentCursor = this.currentCursor; // rehydration will be disabled until we either:
// * hit popElement (and return to using the parent elements cursor)
// * hit closeBlock and the next sibling is a close block comment
// matching the expected openBlockDepth
currentCursor.candidate = null;
currentCursor.nextSibling = nextSibling;
};
_proto.enableRehydration = function enableRehydration(candidate) {
var currentCursor = this.currentCursor;
currentCursor.candidate = candidate;
currentCursor.nextSibling = null;
};
_proto.pushElement = function pushElement(element, nextSibling) {
if (nextSibling === void 0) {
nextSibling = null;
}
var cursor = new RehydratingCursor(element, nextSibling, this.blockDepth || 0);
/**
* <div> <--------------- currentCursor.element
* <!--%+b:1%--> <------- would have been removed during openBlock
* <div> <--------------- currentCursor.candidate -> cursor.element
* <!--%+b:2%--> <----- currentCursor.candidate.firstChild -> cursor.candidate
* Foo
* <!--%-b:2%-->
* </div>
* <!--%-b:1%--> <------ becomes currentCursor.candidate
*/
if (this.candidate !== null) {
cursor.candidate = element.firstChild;
this.candidate = element.nextSibling;
}
this[CURSOR_STACK].push(cursor);
} // clears until the end of the current container
// either the current open block or higher
;
_proto.clearMismatch = function clearMismatch(candidate) {
var current = candidate;
var currentCursor = this.currentCursor;
if (currentCursor !== null) {
var openBlockDepth = currentCursor.openBlockDepth;
if (openBlockDepth >= currentCursor.startingBlockDepth) {
while (current) {
if (isCloseBlock(current)) {
var closeBlockDepth = getBlockDepthWithOffset(current, this.startingBlockOffset);
if (openBlockDepth >= closeBlockDepth) {
break;
}
}
current = this.remove(current);
}
} else {
while (current !== null) {
current = this.remove(current);
}
} // current cursor parentNode should be openCandidate if element
// or openCandidate.parentNode if comment
this.disableRehydration(current);
}
};
_proto.__openBlock = function __openBlock() {
var currentCursor = this.currentCursor;
if (currentCursor === null) return;
var blockDepth = this.blockDepth;
this.blockDepth++;
var candidate = currentCursor.candidate;
if (candidate === null) return;
var tagName = currentCursor.element.tagName;
if (isOpenBlock(candidate) && getBlockDepthWithOffset(candidate, this.startingBlockOffset) === blockDepth) {
this.candidate = this.remove(candidate);
currentCursor.openBlockDepth = blockDepth;
} else if (tagName !== 'TITLE' && tagName !== 'SCRIPT' && tagName !== 'STYLE') {
this.clearMismatch(candidate);
}
};
_proto.__closeBlock = function __closeBlock() {
var currentCursor = this.currentCursor;
if (currentCursor === null) return; // openBlock is the last rehydrated open block
var openBlockDepth = currentCursor.openBlockDepth; // this currently is the expected next open block depth
this.blockDepth--;
var candidate = currentCursor.candidate;
var isRehydrating = false;
if (candidate !== null) {
isRehydrating = true; //assert(
// openBlockDepth === this.blockDepth,
// 'when rehydrating, openBlockDepth should match this.blockDepth here'
//);
if (isCloseBlock(candidate) && getBlockDepthWithOffset(candidate, this.startingBlockOffset) === openBlockDepth) {
var nextSibling = this.remove(candidate);
this.candidate = nextSibling;
currentCursor.openBlockDepth--;
} else {
// close the block and clear mismatch in parent container
// we will be either at the end of the element
// or at the end of our containing block
this.clearMismatch(candidate);
isRehydrating = false;
}
}
if (isRehydrating === false) {
// check if nextSibling matches our expected close block
// if so, we remove the close block comment and
// restore rehydration after clearMismatch disabled
var _nextSibling = currentCursor.nextSibling;
if (_nextSibling !== null && isCloseBlock(_nextSibling) && getBlockDepthWithOffset(_nextSibling, this.startingBlockOffset) === this.blockDepth) {
// restore rehydration state
var _candidate2 = this.remove(_nextSibling);
this.enableRehydration(_candidate2);
currentCursor.openBlockDepth--;
}
}
};
_proto.__appendNode = function __appendNode(node) {
var candidate = this.candidate; // This code path is only used when inserting precisely one node. It needs more
// comparison logic, but we can probably lean on the cases where this code path
// is actually used.
if (candidate) {
return candidate;
} else {
return _NewElementBuilder.prototype.__appendNode.call(this, node);
}
};
_proto.__appendHTML = function __appendHTML(html) {
var candidateBounds = this.markerBounds();
if (candidateBounds) {
var first = candidateBounds.firstNode();
var last = candidateBounds.lastNode();
var newBounds = new ConcreteBounds(this.element, first.nextSibling, last.previousSibling);
var possibleEmptyMarker = this.remove(first);
this.remove(last);
if (possibleEmptyMarker !== null && isEmpty(possibleEmptyMarker)) {
this.candidate = this.remove(possibleEmptyMarker);
if (this.candidate !== null) {
this.clearMismatch(this.candidate);
}
}
return newBounds;
} else {
return _NewElementBuilder.prototype.__appendHTML.call(this, html);
}
};
_proto.remove = function remove(node) {
var element = node.parentNode;
var next = node.nextSibling;
element.removeChild(node);
return next;
};
_proto.markerBounds = function markerBounds() {
var _candidate = this.candidate;
if (_candidate && isMarker(_candidate)) {
var first = _candidate;
var last = first.nextSibling;
while (last && !isMarker(last)) {
last = last.nextSibling;
}
return new ConcreteBounds(this.element, first, last);
} else {
return null;
}
};
_proto.__appendText = function __appendText(string) {
var candidate = this.candidate;
if (candidate) {
if (isTextNode(candidate)) {
if (candidate.nodeValue !== string) {
candidate.nodeValue = string;
}
this.candidate = candidate.nextSibling;
return candidate;
} else if (isSeparator(candidate)) {
this.candidate = this.remove(candidate);
return this.__appendText(string);
} else if (isEmpty(candidate) && string === '') {
this.candidate = this.remove(candidate);
return this.__appendText(string);
} else {
this.clearMismatch(candidate);
return _NewElementBuilder.prototype.__appendText.call(this, string);
}
} else {
return _NewElementBuilder.prototype.__appendText.call(this, string);
}
};
_proto.__appendComment = function __appendComment(string) {
var _candidate = this.candidate;
if (_candidate && isComment(_candidate)) {
if (_candidate.nodeValue !== string) {
_candidate.nodeValue = string;
}
this.candidate = _candidate.nextSibling;
return _candidate;
} else if (_candidate) {
this.clearMismatch(_candidate);
}
return _NewElementBuilder.prototype.__appendComment.call(this, string);
};
_proto.__openElement = function __openElement(tag) {
var _candidate = this.candidate;
if (_candidate && isElement(_candidate) && isSameNodeType(_candidate, tag)) {
this.unmatchedAttributes = [].slice.call(_candidate.attributes);
return _candidate;
} else if (_candidate) {
if (isElement(_candidate) && _candidate.tagName === 'TBODY') {
this.pushElement(_candidate, null);
this.currentCursor.injectedOmittedNode = true;
return this.__openElement(tag);
}
this.clearMismatch(_candidate);
}
return _NewElementBuilder.prototype.__openElement.call(this, tag);
};
_proto.__setAttribute = function __setAttribute(name, value, namespace) {
var unmatched = this.unmatchedAttributes;
if (unmatched) {
var attr = findByName(unmatched, name);
if (attr) {
if (attr.value !== value) {
attr.value = value;
}
unmatched.splice(unmatched.indexOf(attr), 1);
return;
}
}
return _NewElementBuilder.prototype.__setAttribute.call(this, name, value, namespace);
};
_proto.__setProperty = function __setProperty(name, value) {
var unmatched = this.unmatchedAttributes;
if (unmatched) {
var attr = findByName(unmatched, name);
if (attr) {
if (attr.value !== value) {
attr.value = value;
}
unmatched.splice(unmatched.indexOf(attr), 1);
return;
}
}
return _NewElementBuilder.prototype.__setProperty.call(this, name, value);
};
_proto.__flushElement = function __flushElement(parent, constructing) {
var unmatched = this.unmatchedAttributes;
if (unmatched) {
for (var i = 0; i < unmatched.length; i++) {
this.constructing.removeAttribute(unmatched[i].name);
}
this.unmatchedAttributes = null;
} else {
_NewElementBuilder.prototype.__flushElement.call(this, parent, constructing);
}
};
_proto.willCloseElement = function willCloseElement() {
var candidate = this.candidate,
currentCursor = this.currentCursor;
if (candidate !== null) {
this.clearMismatch(candidate);
}
if (currentCursor && currentCursor.injectedOmittedNode) {
this.popElement();
}
_NewElementBuilder.prototype.willCloseElement.call(this);
};
_proto.getMarker = function getMarker(element, guid) {
var marker = element.querySelector("script[glmr=\"" + guid + "\"]");
if (marker) {
return marker;
}
return null;
};
_proto.__pushRemoteElement = function __pushRemoteElement(element, cursorId, insertBefore) {
var marker = this.getMarker(element, cursorId);
false && assert(!marker || marker.parentNode === element, "expected remote element marker's parent node to match remote element"); // when insertBefore is not present, we clear the element
if (insertBefore === undefined) {
while (element.firstChild !== null && element.firstChild !== marker) {
this.remove(element.firstChild);
}
insertBefore = null;
}
var cursor = new RehydratingCursor(element, null, this.blockDepth);
this[CURSOR_STACK].push(cursor);
if (marker === null) {
this.disableRehydration(insertBefore);
} else {
this.candidate = this.remove(marker);
}
var block = new RemoteLiveBlock(element);
return this.pushLiveBlock(block, true);
};
_proto.didAppendBounds = function didAppendBounds(bounds) {
_NewElementBuilder.prototype.didAppendBounds.call(this, bounds);
if (this.candidate) {
var last = bounds.lastNode();
this.candidate = last && last.nextSibling;
}
return bounds;
};
_createClass(RehydrateBuilder, [{
key: "currentCursor",
get: function get() {
return this[CURSOR_STACK].current;
}
}, {
key: "candidate",
get: function get() {
if (this.currentCursor) {
return this.currentCursor.candidate;
}
return null;
},
set: function set(node) {
var currentCursor = this.currentCursor;
currentCursor.candidate = node;
}
}]);
return RehydrateBuilder;
}(NewElementBuilder);
function isTextNode(node) {
return node.nodeType === 3;
}
function isComment(node) {
return node.nodeType === 8;
}
function isOpenBlock(node) {
return node.nodeType === 8
/* COMMENT_NODE */
&& node.nodeValue.lastIndexOf('%+b:', 0) === 0;
}
function isCloseBlock(node) {
return node.nodeType === 8
/* COMMENT_NODE */
&& node.nodeValue.lastIndexOf('%-b:', 0) === 0;
}
function getBlockDepth(node) {
return parseInt(node.nodeValue.slice(4), 10);
}
function getBlockDepthWithOffset(node, offset) {
return getBlockDepth(node) - offset;
}
function isElement(node) {
return node.nodeType === 1;
}
function isMarker(node) {
return node.nodeType === 8 && node.nodeValue === '%glmr%';
}
function isSeparator(node) {
return node.nodeType === 8 && node.nodeValue === '%|%';
}
function isEmpty(node) {
return node.nodeType === 8 && node.nodeValue === '% %';
}
function isSameNodeType(candidate, tag) {
if (candidate.namespaceURI === "http://www.w3.org/2000/svg"
/* SVG */
) {
return candidate.tagName === tag;
}
return candidate.tagName === tag.toUpperCase();
}
function findByName(array, name) {
for (var i = 0; i < array.length; i++) {
var attr = array[i];
if (attr.name === name) return attr;
}
return undefined;
}
export function rehydrationBuilder(env, cursor) {
return RehydrateBuilder.forInitialRender(env, cursor);
}
//# 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openBlockDepth = currentCursor.openBlockDepth;\n\n    // this currently is the expected next open block depth\n    this.blockDepth--;\n\n    let { candidate } = currentCursor;\n\n    let isRehydrating = false;\n\n    if (candidate !== null) {\n      isRehydrating = true;\n      //assert(\n      //  openBlockDepth === this.blockDepth,\n      //  'when rehydrating, openBlockDepth should match this.blockDepth here'\n      //);\n\n      if (\n        isCloseBlock(candidate) &&\n        getBlockDepthWithOffset(candidate, this.startingBlockOffset) === openBlockDepth\n      ) {\n        let nextSibling = this.remove(candidate);\n        this.candidate = nextSibling;\n        currentCursor.openBlockDepth--;\n      } else {\n        // close the block and clear mismatch in parent container\n        // we will be either at the end of the element\n        // or at the end of our containing block\n        this.clearMismatch(candidate);\n        isRehydrating = false;\n      }\n    }\n\n    if (isRehydrating === false) {\n      // check if nextSibling matches our expected close block\n      // if so, we remove the close block comment and\n      // restore rehydration after clearMismatch disabled\n      let nextSibling = currentCursor.nextSibling;\n      if (\n        nextSibling !== null &&\n        isCloseBlock(nextSibling) &&\n        getBlockDepthWithOffset(nextSibling, this.startingBlockOffset) === this.blockDepth\n      ) {\n        // restore rehydration state\n        let candidate = this.remove(nextSibling);\n        this.enableRehydration(candidate);\n\n        currentCursor.openBlockDepth--;\n      }\n    }\n  }\n\n  __appendNode(node: SimpleNode): SimpleNode {\n    let { candidate } = this;\n\n    // This code path is only used when inserting precisely one node. It needs more\n    // comparison logic, but we can probably lean on the cases where this code path\n    // is actually used.\n    if (candidate) {\n      return candidate;\n    } else {\n      return super.__appendNode(node);\n    }\n  }\n\n  __appendHTML(html: string): Bounds {\n    let candidateBounds = this.markerBounds();\n\n    if (candidateBounds) {\n      let first = candidateBounds.firstNode()!;\n      let last = candidateBounds.lastNode()!;\n\n      let newBounds = new ConcreteBounds(this.element, first.nextSibling!, last.previousSibling!);\n\n      let possibleEmptyMarker = this.remove(first);\n      this.remove(last);\n\n      if (possibleEmptyMarker !== null && isEmpty(possibleEmptyMarker)) {\n        this.candidate = this.remove(possibleEmptyMarker);\n\n        if (this.candidate !== null) {\n          this.clearMismatch(this.candidate);\n        }\n      }\n\n      return newBounds;\n    } else {\n      return super.__appendHTML(html);\n    }\n  }\n\n  protected remove(node: SimpleNode): Option<SimpleNode> {\n    let element = expect(node.parentNode, `cannot remove a detached node`) as SimpleElement;\n    let next = node.nextSibling;\n    element.removeChild(node);\n    return next;\n  }\n\n  private markerBounds(): Option<Bounds> {\n    let _candidate = this.candidate;\n\n    if (_candidate && isMarker(_candidate)) {\n      let first = _candidate;\n      let last = expect(first.nextSibling, `BUG: serialization markers must be paired`);\n\n      while (last && !isMarker(last)) {\n        last = expect(last.nextSibling, `BUG: serialization markers must be paired`);\n      }\n\n      return new ConcreteBounds(this.element, first, last);\n    } else {\n      return null;\n    }\n  }\n\n  __appendText(string: string): SimpleText {\n    let { candidate } = this;\n\n    if (candidate) {\n      if (isTextNode(candidate)) {\n        if (candidate.nodeValue !== string) {\n          candidate.nodeValue = string;\n        }\n        this.candidate = candidate.nextSibling;\n\n        return candidate;\n      } else if (isSeparator(candidate)) {\n        this.candidate = this.remove(candidate);\n\n        return this.__appendText(string);\n      } else if (isEmpty(candidate) && string === '') {\n        this.candidate = this.remove(candidate);\n\n        return this.__appendText(string);\n      } else {\n        this.clearMismatch(candidate);\n\n        return super.__appendText(string);\n      }\n    } else {\n      return super.__appendText(string);\n    }\n  }\n\n  __appendComment(string: string): SimpleComment {\n    let _candidate = this.candidate;\n    if (_candidate && isComment(_candidate)) {\n      if (_candidate.nodeValue !== string) {\n        _candidate.nodeValue = string;\n      }\n\n      this.candidate = _candidate.nextSibling;\n      return _candidate;\n    } else if (_candidate) {\n      this.clearMismatch(_candidate);\n    }\n\n    return super.__appendComment(string);\n  }\n\n  __openElement(tag: string): SimpleElement {\n    let _candidate = this.candidate;\n\n    if (_candidate && isElement(_candidate) && isSameNodeType(_candidate, tag)) {\n      this.unmatchedAttributes = [].slice.call(_candidate.attributes);\n      return _candidate;\n    } else if (_candidate) {\n      if (isElement(_candidate) && _candidate.tagName === 'TBODY') {\n        this.pushElement(_candidate, null);\n        this.currentCursor!.injectedOmittedNode = true;\n        return this.__openElement(tag);\n      }\n      this.clearMismatch(_candidate);\n    }\n\n    return super.__openElement(tag);\n  }\n\n  __setAttribute(name: string, value: string, namespace: Option<AttrNamespace>): void {\n    let unmatched = this.unmatchedAttributes;\n\n    if (unmatched) {\n      let attr = findByName(unmatched, name);\n      if (attr) {\n        if (attr.value !== value) {\n          attr.value = value;\n        }\n 