mirror of https://github.com/gorhill/uBlock.git
Ensure the text cursor in visible when a CodeMirror editor is resized
Related issues: - https://github.com/gorhill/uBlock/issues/3706 - https://github.com/gorhill/uBlock/issues/3701
This commit is contained in:
Raymond Hill
parent
cd597709bb
commit
69668d27b1
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@ -1,7 +1,7 @@
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/*******************************************************************************
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uBlock Origin - a browser extension to block requests.
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Copyright (C) 2014-2018 Raymond Hill
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Copyright (C) 2014-present Raymond Hill
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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@ -33,28 +33,25 @@ self.uBlockDashboard = self.uBlockDashboard || {};
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// Remove literal duplicate lines from a set based on another set.
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self.uBlockDashboard.mergeNewLines = function(text, newText) {
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var lineBeg, textEnd, lineEnd;
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var line, hash, bucket;
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// Step 1: build dictionary for existing lines.
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var fromDict = Object.create(null);
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lineBeg = 0;
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textEnd = text.length;
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const fromDict = Object.create(null);
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let lineBeg = 0;
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let textEnd = text.length;
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while ( lineBeg < textEnd ) {
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lineEnd = text.indexOf('\n', lineBeg);
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let lineEnd = text.indexOf('\n', lineBeg);
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if ( lineEnd === -1 ) {
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lineEnd = text.indexOf('\r', lineBeg);
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if ( lineEnd === -1 ) {
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lineEnd = textEnd;
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}
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}
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line = text.slice(lineBeg, lineEnd).trim();
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let line = text.slice(lineBeg, lineEnd).trim();
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lineBeg = lineEnd + 1;
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if ( line.length === 0 ) {
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continue;
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}
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hash = line.slice(0, 8);
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bucket = fromDict[hash];
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const hash = line.slice(0, 8);
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const bucket = fromDict[hash];
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if ( bucket === undefined ) {
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fromDict[hash] = line;
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} else if ( typeof bucket === 'string' ) {
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@ -65,18 +62,18 @@ self.uBlockDashboard.mergeNewLines = function(text, newText) {
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}
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// Step 2: use above dictionary to filter out duplicate lines.
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var out = [ '' ];
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const out = [ '' ];
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lineBeg = 0;
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textEnd = newText.length;
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while ( lineBeg < textEnd ) {
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lineEnd = newText.indexOf('\n', lineBeg);
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let lineEnd = newText.indexOf('\n', lineBeg);
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if ( lineEnd === -1 ) {
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lineEnd = newText.indexOf('\r', lineBeg);
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if ( lineEnd === -1 ) {
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lineEnd = textEnd;
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}
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}
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line = newText.slice(lineBeg, lineEnd).trim();
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let line = newText.slice(lineBeg, lineEnd).trim();
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lineBeg = lineEnd + 1;
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if ( line.length === 0 ) {
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if ( out[out.length - 1] !== '' ) {
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@ -84,7 +81,7 @@ self.uBlockDashboard.mergeNewLines = function(text, newText) {
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}
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continue;
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}
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bucket = fromDict[line.slice(0, 8)];
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const bucket = fromDict[line.slice(0, 8)];
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if ( bucket === undefined ) {
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out.push(line);
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continue;
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@ -105,7 +102,7 @@ self.uBlockDashboard.mergeNewLines = function(text, newText) {
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/******************************************************************************/
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self.uBlockDashboard.dateNowToSensibleString = function() {
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var now = new Date(Date.now() - (new Date()).getTimezoneOffset() * 60000);
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const now = new Date(Date.now() - (new Date()).getTimezoneOffset() * 60000);
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return now.toISOString().replace(/\.\d+Z$/, '')
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.replace(/:/g, '.')
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.replace('T', '_');
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@ -114,13 +111,14 @@ self.uBlockDashboard.dateNowToSensibleString = function() {
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/******************************************************************************/
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self.uBlockDashboard.patchCodeMirrorEditor = (function() {
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var grabFocusTimer;
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var grabFocusTarget;
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var grabFocus = function() {
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let grabFocusTimer;
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let grabFocusTarget;
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const grabFocus = function() {
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grabFocusTarget.focus();
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grabFocusTimer = grabFocusTarget = undefined;
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};
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var grabFocusAsync = function(cm) {
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const grabFocusAsync = function(cm) {
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grabFocusTarget = cm;
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if ( grabFocusTimer === undefined ) {
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grabFocusTimer = vAPI.setTimeout(grabFocus, 1);
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@ -128,7 +126,7 @@ self.uBlockDashboard.patchCodeMirrorEditor = (function() {
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};
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// https://github.com/gorhill/uBlock/issues/3646
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var patchSelectAll = function(cm, details) {
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const patchSelectAll = function(cm, details) {
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var vp = cm.getViewport();
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if ( details.ranges.length !== 1 ) { return; }
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var range = details.ranges[0],
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@ -146,11 +144,11 @@ self.uBlockDashboard.patchCodeMirrorEditor = (function() {
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grabFocusAsync(cm);
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};
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var lastGutterClick = 0;
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var lastGutterLine = 0;
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let lastGutterClick = 0;
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let lastGutterLine = 0;
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var onGutterClicked = function(cm, line) {
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var delta = Date.now() - lastGutterClick;
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const onGutterClicked = function(cm, line) {
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const delta = Date.now() - lastGutterClick;
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if ( delta >= 500 || line !== lastGutterLine ) {
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cm.setSelection(
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{ line: line, ch: 0 },
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@ -169,23 +167,28 @@ self.uBlockDashboard.patchCodeMirrorEditor = (function() {
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grabFocusAsync(cm);
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};
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var resizeTimer,
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let resizeTimer,
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resizeObserver;
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var resize = function(cm) {
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const resize = function(cm) {
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resizeTimer = undefined;
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var child = document.querySelector('.codeMirrorFillVertical');
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const child = document.querySelector('.codeMirrorFillVertical');
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if ( child === null ) { return; }
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var prect = document.documentElement.getBoundingClientRect();
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var crect = child.getBoundingClientRect();
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var cssHeight = Math.floor(Math.max(prect.bottom - crect.top, 80)) + 'px';
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if ( child.style.height !== cssHeight ) {
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const prect = document.documentElement.getBoundingClientRect();
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const crect = child.getBoundingClientRect();
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const cssHeight = Math.floor(Math.max(prect.bottom - crect.top, 80)) + 'px';
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if ( child.style.height === cssHeight ) { return; }
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child.style.height = cssHeight;
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// https://github.com/gorhill/uBlock/issues/3694
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// Need to call cm.refresh() when resizing occurs. However the
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// cursor position may end up outside the viewport, hence we also
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// call cm.scrollIntoView() to address this.
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// Reference: https://codemirror.net/doc/manual.html#api_sizing
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if ( cm instanceof CodeMirror ) {
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cm.refresh();
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}
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cm.scrollIntoView(null);
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}
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};
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var resizeAsync = function(cm, delay) {
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const resizeAsync = function(cm, delay) {
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if ( resizeTimer !== undefined ) { return; }
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resizeTimer = vAPI.setTimeout(
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resize.bind(null, cm),
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@ -195,7 +198,7 @@ self.uBlockDashboard.patchCodeMirrorEditor = (function() {
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return function(cm) {
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if ( document.querySelector('.codeMirrorFillVertical') !== null ) {
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var boundResizeAsync = resizeAsync.bind(null, cm);
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const boundResizeAsync = resizeAsync.bind(null, cm);
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window.addEventListener('resize', boundResizeAsync);
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resizeObserver = new MutationObserver(boundResizeAsync);
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resizeObserver.observe(document.querySelector('.body'), {
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