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Change var to let, and use object destructuring, in a couple of previously class converted web/*.js files

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Note that these files were among the first to be converted to ES6 classes, so it probably makes sense to do another pass to bring them inline with the most recent ES6 conversions.
This commit is contained in:
Jonas Jenwald 2017-06-30 12:55:22 +02:00
parent 699f3392e4
commit 614e8cf295
9 changed files with 113 additions and 118 deletions
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45
web/pdf_outline_viewer.js
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@ -35,13 +35,13 @@ class PDFOutlineViewer {
/**
* @param {PDFOutlineViewerOptions} options
*/
constructor(options) {
constructor({ container, linkService, eventBus, }) {
this.outline = null;
this.lastToggleIsShow = true;
this.container = options.container;
this.linkService = options.linkService;
this.eventBus = options.eventBus;
this.container = container;
this.linkService = linkService;
this.eventBus = eventBus;
}
reset() {
@ -77,7 +77,7 @@ class PDFOutlineViewer {
});
return;
}
var destination = item.dest;
let destination = item.dest;
element.href = this.linkService.getDestinationHash(destination);
element.onclick = () => {
@ -92,7 +92,7 @@ class PDFOutlineViewer {
* @private
*/
_setStyles(element, item) {
var styleStr = '';
let styleStr = '';
if (item.bold) {
styleStr += 'font-weight: bold;';
}
@ -112,14 +112,14 @@ class PDFOutlineViewer {
* @private
*/
_addToggleButton(div) {
var toggler = document.createElement('div');
let toggler = document.createElement('div');
toggler.className = 'outlineItemToggler';
toggler.onclick = (evt) => {
evt.stopPropagation();
toggler.classList.toggle('outlineItemsHidden');
if (evt.shiftKey) {
var shouldShowAll = !toggler.classList.contains('outlineItemsHidden');
let shouldShowAll = !toggler.classList.contains('outlineItemsHidden');
this._toggleOutlineItem(div, shouldShowAll);
}
};
@ -137,8 +137,8 @@ class PDFOutlineViewer {
*/
_toggleOutlineItem(root, show) {
this.lastToggleIsShow = show;
var togglers = root.querySelectorAll('.outlineItemToggler');
for (var i = 0, ii = togglers.length; i < ii; ++i) {
let togglers = root.querySelectorAll('.outlineItemToggler');
for (let i = 0, ii = togglers.length; i < ii; ++i) {
togglers[i].classList[show ? 'remove' : 'add']('outlineItemsHidden');
}
}
@ -156,32 +156,31 @@ class PDFOutlineViewer {
/**
* @param {PDFOutlineViewerRenderParameters} params
*/
render(params = {}) {
var outline = params.outline || null;
var outlineCount = 0;
render({ outline, }) {
let outlineCount = 0;
if (this.outline) {
this.reset();
}
this.outline = outline;
this.outline = outline || null;
if (!outline) {
this._dispatchEvent(outlineCount);
return;
}
var fragment = document.createDocumentFragment();
var queue = [{ parent: fragment, items: this.outline, }];
var hasAnyNesting = false;
let fragment = document.createDocumentFragment();
let queue = [{ parent: fragment, items: this.outline, }];
let hasAnyNesting = false;
while (queue.length > 0) {
var levelData = queue.shift();
for (var i = 0, len = levelData.items.length; i < len; i++) {
var item = levelData.items[i];
let levelData = queue.shift();
for (let i = 0, len = levelData.items.length; i < len; i++) {
let item = levelData.items[i];
var div = document.createElement('div');
let div = document.createElement('div');
div.className = 'outlineItem';
var element = document.createElement('a');
let element = document.createElement('a');
this._bindLink(element, item);
this._setStyles(element, item);
element.textContent =
@ -193,7 +192,7 @@ class PDFOutlineViewer {
hasAnyNesting = true;
this._addToggleButton(div);
var itemsDiv = document.createElement('div');
let itemsDiv = document.createElement('div');
itemsDiv.className = 'outlineItems';
div.appendChild(itemsDiv);
queue.push({ parent: itemsDiv, items: item.items, });