Sakurai/pdf.js
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Use const in text_layer_builder.js

Browse Source
This commit is contained in:
Wojciech Maj 2019-12-22 18:18:29 +01:00
parent 6316b2a195
commit 8a8f75cf68
No known key found for this signature in database
GPG Key ID: 24A586806A31F908
1 changed files with 22 additions and 20 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

42
web/text_layer_builder.js
View File

@ -12,6 +12,7 @@
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/* eslint no-var: error, prefer-const: error */
import { getGlobalEventBus } from './ui_utils';
import { renderTextLayer } from 'pdfjs-lib';
@ -64,7 +65,7 @@ class TextLayerBuilder {
this.renderingDone = true;
if (!this.enhanceTextSelection) {
let endOfContent = document.createElement('div');
const endOfContent = document.createElement('div');
endOfContent.className = 'endOfContent';
this.textLayerDiv.appendChild(endOfContent);
}
@ -89,7 +90,7 @@ class TextLayerBuilder {
this.cancel();
this.textDivs = [];
let textLayerFrag = document.createDocumentFragment();
const textLayerFrag = document.createDocumentFragment();
this.textLayerRenderTask = renderTextLayer({
textContent: this.textContent,
textContentStream: this.textContentStream,
@ -171,7 +172,7 @@ class TextLayerBuilder {
console.error('Could not find a matching mapping');
}
let match = {
const match = {
begin: {
divIdx: i,
offset: matchIdx - iIndex,
@ -213,23 +214,24 @@ class TextLayerBuilder {
const selectedMatchIdx = findController.selected.matchIdx;
const highlightAll = findController.state.highlightAll;
let prevEnd = null;
let infinity = {
const infinity = {
divIdx: -1,
offset: undefined,
};
function beginText(begin, className) {
let divIdx = begin.divIdx;
const divIdx = begin.divIdx;
textDivs[divIdx].textContent = '';
appendTextToDiv(divIdx, 0, begin.offset, className);
}
function appendTextToDiv(divIdx, fromOffset, toOffset, className) {
let div = textDivs[divIdx];
let content = textContentItemsStr[divIdx].substring(fromOffset, toOffset);
let node = document.createTextNode(content);
const div = textDivs[divIdx];
const content =
textContentItemsStr[divIdx].substring(fromOffset, toOffset);
const node = document.createTextNode(content);
if (className) {
let span = document.createElement('span');
const span = document.createElement('span');
span.className = className;
span.appendChild(node);
div.appendChild(span);
@ -248,9 +250,9 @@ class TextLayerBuilder {
}
for (let i = i0; i < i1; i++) {
let match = matches[i];
let begin = match.begin;
let end = match.end;
const match = matches[i];
const begin = match.begin;
const end = match.end;
const isSelected = (isSelectedPage && i === selectedMatchIdx);
const highlightSuffix = (isSelected ? ' selected' : '');
@ -305,10 +307,10 @@ class TextLayerBuilder {
// Clear all current matches.
for (let i = 0, ii = matches.length; i < ii; i++) {
let match = matches[i];
let begin = Math.max(clearedUntilDivIdx, match.begin.divIdx);
const match = matches[i];
const begin = Math.max(clearedUntilDivIdx, match.begin.divIdx);
for (let n = begin, end = match.end.divIdx; n <= end; n++) {
let div = textDivs[n];
const div = textDivs[n];
div.textContent = textContentItemsStr[n];
div.className = '';
}
@ -335,7 +337,7 @@ class TextLayerBuilder {
* @private
*/
_bindMouse() {
let div = this.textLayerDiv;
const div = this.textLayerDiv;
let expandDivsTimer = null;
div.addEventListener('mousedown', (evt) => {
@ -350,7 +352,7 @@ class TextLayerBuilder {
return;
}
let end = div.querySelector('.endOfContent');
const end = div.querySelector('.endOfContent');
if (!end) {
return;
}
@ -366,8 +368,8 @@ class TextLayerBuilder {
getPropertyValue('-moz-user-select') !== 'none';
}
if (adjustTop) {
let divBounds = div.getBoundingClientRect();
let r = Math.max(0, (evt.pageY - divBounds.top) / divBounds.height);
const divBounds = div.getBoundingClientRect();
const r = Math.max(0, (evt.pageY - divBounds.top) / divBounds.height);
end.style.top = (r * 100).toFixed(2) + '%';
}
}
@ -390,7 +392,7 @@ class TextLayerBuilder {
return;
}
let end = div.querySelector('.endOfContent');
const end = div.querySelector('.endOfContent');
if (!end) {
return;
}