mirror of
https://github.com/ether/etherpad-lite.git
synced 2025-04-22 16:36:15 -04:00
Merge branch 'develop' of github.com:ether/etherpad-lite into mochawesome
This commit is contained in:
John McLear
commit
6eb76a051d
3 changed files with 143 additions and 192 deletions
|
|
@ -1,19 +1,14 @@
|
|||
// Specific hash to display the skin variants builder popup
|
||||
if (window.location.hash.toLowerCase() == '#skinvariantsbuilder') {
|
||||
$('#skin-variants').addClass('popup-show');
|
||||
'use strict';
|
||||
|
||||
$('.skin-variant').change(() => {
|
||||
updateSkinVariantsClasses();
|
||||
});
|
||||
// Specific hash to display the skin variants builder popup
|
||||
if (window.location.hash.toLowerCase() === '#skinvariantsbuilder') {
|
||||
$('#skin-variants').addClass('popup-show');
|
||||
|
||||
const containers = ['editor', 'background', 'toolbar'];
|
||||
const colors = ['super-light', 'light', 'dark', 'super-dark'];
|
||||
|
||||
updateCheckboxFromSkinClasses();
|
||||
updateSkinVariantsClasses();
|
||||
|
||||
// add corresponding classes when config change
|
||||
function updateSkinVariantsClasses() {
|
||||
const updateSkinVariantsClasses = () => {
|
||||
const domsToUpdate = [
|
||||
$('html'),
|
||||
$('iframe[name=ace_outer]').contents().find('html'),
|
||||
|
|
@ -27,23 +22,21 @@ if (window.location.hash.toLowerCase() == '#skinvariantsbuilder') {
|
|||
|
||||
domsToUpdate.forEach((el) => { el.removeClass('full-width-editor'); });
|
||||
|
||||
const new_classes = [];
|
||||
const newClasses = [];
|
||||
$('select.skin-variant-color').each(function () {
|
||||
new_classes.push(`${$(this).val()}-${$(this).data('container')}`);
|
||||
newClasses.push(`${$(this).val()}-${$(this).data('container')}`);
|
||||
});
|
||||
if ($('#skin-variant-full-width').is(':checked')) new_classes.push('full-width-editor');
|
||||
if ($('#skin-variant-full-width').is(':checked')) newClasses.push('full-width-editor');
|
||||
|
||||
domsToUpdate.forEach((el) => { el.addClass(new_classes.join(' ')); });
|
||||
domsToUpdate.forEach((el) => { el.addClass(newClasses.join(' ')); });
|
||||
|
||||
$('#skin-variants-result').val(`"skinVariants": "${new_classes.join(' ')}",`);
|
||||
}
|
||||
$('#skin-variants-result').val(`"skinVariants": "${newClasses.join(' ')}",`);
|
||||
};
|
||||
|
||||
// run on init
|
||||
function updateCheckboxFromSkinClasses() {
|
||||
const updateCheckboxFromSkinClasses = () => {
|
||||
$('html').attr('class').split(' ').forEach((classItem) => {
|
||||
var container = classItem.split('-').slice(-1);
|
||||
|
||||
var container = classItem.substring(classItem.lastIndexOf('-') + 1, classItem.length);
|
||||
const container = classItem.substring(classItem.lastIndexOf('-') + 1, classItem.length);
|
||||
if (containers.indexOf(container) > -1) {
|
||||
const color = classItem.substring(0, classItem.lastIndexOf('-'));
|
||||
$(`.skin-variant-color[data-container="${container}"`).val(color);
|
||||
|
|
@ -51,5 +44,12 @@ if (window.location.hash.toLowerCase() == '#skinvariantsbuilder') {
|
|||
});
|
||||
|
||||
$('#skin-variant-full-width').prop('checked', $('html').hasClass('full-width-editor'));
|
||||
}
|
||||
};
|
||||
|
||||
$('.skin-variant').change(() => {
|
||||
updateSkinVariantsClasses();
|
||||
});
|
||||
|
||||
updateCheckboxFromSkinClasses();
|
||||
updateSkinVariantsClasses();
|
||||
}
|
||||
|
|
|
|||
|
|
@ -1,3 +1,5 @@
|
|||
'use strict';
|
||||
|
||||
/**
|
||||
* This code is mostly from the old Etherpad. Please help us to comment this code.
|
||||
* This helps other people to understand this code better and helps them to improve it.
|
||||
|
|
@ -28,15 +30,13 @@ const noop = Ace2Common.noop;
|
|||
function SkipList() {
|
||||
let PROFILER = window.PROFILER;
|
||||
if (!PROFILER) {
|
||||
PROFILER = function () {
|
||||
return {
|
||||
start: noop,
|
||||
mark: noop,
|
||||
literal: noop,
|
||||
end: noop,
|
||||
cancel: noop,
|
||||
};
|
||||
};
|
||||
PROFILER = () => ({
|
||||
start: noop,
|
||||
mark: noop,
|
||||
literal: noop,
|
||||
end: noop,
|
||||
cancel: noop,
|
||||
});
|
||||
}
|
||||
|
||||
// if there are N elements in the skiplist, "start" is element -1 and "end" is element N
|
||||
|
|
@ -68,7 +68,7 @@ function SkipList() {
|
|||
// this point.
|
||||
|
||||
|
||||
function _getPoint(targetLoc) {
|
||||
const _getPoint = (targetLoc) => {
|
||||
const numLevels = start.levels;
|
||||
let lvl = numLevels - 1;
|
||||
let i = -1;
|
||||
|
|
@ -99,13 +99,11 @@ function SkipList() {
|
|||
idxs,
|
||||
loc: targetLoc,
|
||||
widthSkips,
|
||||
toString() {
|
||||
return `getPoint(${targetLoc})`;
|
||||
},
|
||||
toString: () => `getPoint(${targetLoc})`,
|
||||
};
|
||||
}
|
||||
};
|
||||
|
||||
function _getNodeAtOffset(targetOffset) {
|
||||
const _getNodeAtOffset = (targetOffset) => {
|
||||
let i = 0;
|
||||
let n = start;
|
||||
let lvl = start.levels - 1;
|
||||
|
|
@ -117,16 +115,14 @@ function SkipList() {
|
|||
lvl--;
|
||||
}
|
||||
if (n === start) return (start.downPtrs[0] || null);
|
||||
else if (n === end) return (targetOffset == totalWidth ? (end.upPtrs[0] || null) : null);
|
||||
else if (n === end) return (targetOffset === totalWidth ? (end.upPtrs[0] || null) : null);
|
||||
return n;
|
||||
}
|
||||
};
|
||||
|
||||
function _entryWidth(e) {
|
||||
return (e && e.width) || 0;
|
||||
}
|
||||
const _entryWidth = (e) => (e && e.width) || 0;
|
||||
|
||||
function _insertKeyAtPoint(point, newKey, entry) {
|
||||
const p = PROFILER('insertKey', false);
|
||||
const _insertKeyAtPoint = (point, newKey, entry) => {
|
||||
const p = PROFILER('insertKey', false); // eslint-disable-line new-cap
|
||||
const newNode = {
|
||||
key: newKey,
|
||||
levels: 0,
|
||||
|
|
@ -145,10 +141,10 @@ function SkipList() {
|
|||
|
||||
// The new node will have at least level 1
|
||||
// With a proability of 0.01^(n-1) the nodes level will be >= n
|
||||
while (newNode.levels == 0 || Math.random() < 0.01) {
|
||||
var lvl = newNode.levels;
|
||||
while (newNode.levels === 0 || Math.random() < 0.01) {
|
||||
const lvl = newNode.levels;
|
||||
newNode.levels++;
|
||||
if (lvl == pNodes.length) {
|
||||
if (lvl === pNodes.length) {
|
||||
// assume we have just passed the end of point.nodes, and reached one level greater
|
||||
// than the skiplist currently supports
|
||||
pNodes[lvl] = start;
|
||||
|
|
@ -162,7 +158,7 @@ function SkipList() {
|
|||
point.widthSkips[lvl] = 0;
|
||||
}
|
||||
const me = newNode;
|
||||
var up = pNodes[lvl];
|
||||
const up = pNodes[lvl];
|
||||
const down = up.downPtrs[lvl];
|
||||
const skip1 = pLoc - pIdxs[lvl];
|
||||
const skip2 = up.downSkips[lvl] + 1 - skip1;
|
||||
|
|
@ -179,8 +175,8 @@ function SkipList() {
|
|||
}
|
||||
p.mark('loop2');
|
||||
p.literal(pNodes.length, 'PNL');
|
||||
for (var lvl = newNode.levels; lvl < pNodes.length; lvl++) {
|
||||
var up = pNodes[lvl];
|
||||
for (let lvl = newNode.levels; lvl < pNodes.length; lvl++) {
|
||||
const up = pNodes[lvl];
|
||||
up.downSkips[lvl]++;
|
||||
up.downSkipWidths[lvl] += newWidth;
|
||||
}
|
||||
|
|
@ -189,30 +185,17 @@ function SkipList() {
|
|||
numNodes++;
|
||||
totalWidth += newWidth;
|
||||
p.end();
|
||||
}
|
||||
};
|
||||
|
||||
function _getNodeAtPoint(point) {
|
||||
return point.nodes[0].downPtrs[0];
|
||||
}
|
||||
const _getNodeAtPoint = (point) => point.nodes[0].downPtrs[0];
|
||||
|
||||
function _incrementPoint(point) {
|
||||
point.loc++;
|
||||
for (let i = 0; i < point.nodes.length; i++) {
|
||||
if (point.idxs[i] + point.nodes[i].downSkips[i] < point.loc) {
|
||||
point.idxs[i] += point.nodes[i].downSkips[i];
|
||||
point.widthSkips[i] += point.nodes[i].downSkipWidths[i];
|
||||
point.nodes[i] = point.nodes[i].downPtrs[i];
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
function _deleteKeyAtPoint(point) {
|
||||
const _deleteKeyAtPoint = (point) => {
|
||||
const elem = point.nodes[0].downPtrs[0];
|
||||
const elemWidth = _entryWidth(elem.entry);
|
||||
for (let i = 0; i < point.nodes.length; i++) {
|
||||
if (i < elem.levels) {
|
||||
var up = elem.upPtrs[i];
|
||||
var down = elem.downPtrs[i];
|
||||
const up = elem.upPtrs[i];
|
||||
const down = elem.downPtrs[i];
|
||||
const totalSkip = up.downSkips[i] + elem.downSkips[i] - 1;
|
||||
up.downPtrs[i] = down;
|
||||
down.upPtrs[i] = up;
|
||||
|
|
@ -220,8 +203,7 @@ function SkipList() {
|
|||
const totalWidthSkip = up.downSkipWidths[i] + elem.downSkipWidths[i] - elemWidth;
|
||||
up.downSkipWidths[i] = totalWidthSkip;
|
||||
} else {
|
||||
var up = point.nodes[i];
|
||||
var down = up.downPtrs[i];
|
||||
const up = point.nodes[i];
|
||||
up.downSkips[i]--;
|
||||
up.downSkipWidths[i] -= elemWidth;
|
||||
}
|
||||
|
|
@ -229,9 +211,9 @@ function SkipList() {
|
|||
delete keyToNodeMap[`$KEY$${elem.key}`];
|
||||
numNodes--;
|
||||
totalWidth -= elemWidth;
|
||||
}
|
||||
};
|
||||
|
||||
function _propagateWidthChange(node) {
|
||||
const _propagateWidthChange = (node) => {
|
||||
const oldWidth = node.downSkipWidths[0];
|
||||
const newWidth = _entryWidth(node.entry);
|
||||
const widthChange = newWidth - oldWidth;
|
||||
|
|
@ -245,9 +227,9 @@ function SkipList() {
|
|||
}
|
||||
}
|
||||
totalWidth += widthChange;
|
||||
}
|
||||
};
|
||||
|
||||
function _getNodeIndex(node, byWidth) {
|
||||
const _getNodeIndex = (node, byWidth) => {
|
||||
let dist = (byWidth ? 0 : -1);
|
||||
let n = node;
|
||||
while (n !== start) {
|
||||
|
|
@ -257,27 +239,26 @@ function SkipList() {
|
|||
else dist += n.downSkips[lvl];
|
||||
}
|
||||
return dist;
|
||||
}
|
||||
};
|
||||
|
||||
function _getNodeByKey(key) {
|
||||
return keyToNodeMap[`$KEY$${key}`];
|
||||
}
|
||||
const _getNodeByKey = (key) => keyToNodeMap[`$KEY$${key}`];
|
||||
|
||||
// Returns index of first entry such that entryFunc(entry) is truthy,
|
||||
// or length() if no such entry. Assumes all falsy entries come before
|
||||
// all truthy entries.
|
||||
|
||||
|
||||
function _search(entryFunc) {
|
||||
const _search = (entryFunc) => {
|
||||
let low = start;
|
||||
let lvl = start.levels - 1;
|
||||
let lowIndex = -1;
|
||||
|
||||
function f(node) {
|
||||
const f = (node) => {
|
||||
if (node === start) return false;
|
||||
else if (node === end) return true;
|
||||
else return entryFunc(node.entry);
|
||||
}
|
||||
};
|
||||
|
||||
while (lvl >= 0) {
|
||||
let nextLow = low.downPtrs[lvl];
|
||||
while (!f(nextLow)) {
|
||||
|
|
@ -288,7 +269,7 @@ function SkipList() {
|
|||
lvl--;
|
||||
}
|
||||
return lowIndex + 1;
|
||||
}
|
||||
};
|
||||
|
||||
/*
|
||||
The skip-list contains "entries", JavaScript objects that each must have a unique "key" property
|
||||
|
|
@ -296,16 +277,14 @@ that is a string.
|
|||
*/
|
||||
const self = this;
|
||||
_.extend(this, {
|
||||
length() {
|
||||
return numNodes;
|
||||
},
|
||||
atIndex(i) {
|
||||
length: () => numNodes,
|
||||
atIndex: (i) => {
|
||||
if (i < 0) console.warn(`atIndex(${i})`);
|
||||
if (i >= numNodes) console.warn(`atIndex(${i}>=${numNodes})`);
|
||||
return _getNodeAtPoint(_getPoint(i)).entry;
|
||||
},
|
||||
// differs from Array.splice() in that new elements are in an array, not varargs
|
||||
splice(start, deleteCount, newEntryArray) {
|
||||
splice: (start, deleteCount, newEntryArray) => {
|
||||
if (start < 0) console.warn(`splice(${start}, ...)`);
|
||||
if (start + deleteCount > numNodes) {
|
||||
console.warn(`splice(${start}, ${deleteCount}, ...), N=${numNodes}`);
|
||||
|
|
@ -315,26 +294,22 @@ that is a string.
|
|||
|
||||
if (!newEntryArray) newEntryArray = [];
|
||||
const pt = _getPoint(start);
|
||||
for (var i = 0; i < deleteCount; i++) {
|
||||
for (let i = 0; i < deleteCount; i++) {
|
||||
_deleteKeyAtPoint(pt);
|
||||
}
|
||||
for (var i = (newEntryArray.length - 1); i >= 0; i--) {
|
||||
for (let i = (newEntryArray.length - 1); i >= 0; i--) {
|
||||
const entry = newEntryArray[i];
|
||||
_insertKeyAtPoint(pt, entry.key, entry);
|
||||
const node = _getNodeByKey(entry.key);
|
||||
node.entry = entry;
|
||||
}
|
||||
},
|
||||
next(entry) {
|
||||
return _getNodeByKey(entry.key).downPtrs[0].entry || null;
|
||||
},
|
||||
prev(entry) {
|
||||
return _getNodeByKey(entry.key).upPtrs[0].entry || null;
|
||||
},
|
||||
push(entry) {
|
||||
next: (entry) => _getNodeByKey(entry.key).downPtrs[0].entry || null,
|
||||
prev: (entry) => _getNodeByKey(entry.key).upPtrs[0].entry || null,
|
||||
push: (entry) => {
|
||||
self.splice(numNodes, 0, [entry]);
|
||||
},
|
||||
slice(start, end) {
|
||||
slice: (start, end) => {
|
||||
// act like Array.slice()
|
||||
if (start === undefined) start = 0;
|
||||
else if (start < 0) start += numNodes;
|
||||
|
|
@ -346,7 +321,7 @@ that is a string.
|
|||
if (end < 0) end = 0;
|
||||
if (end > numNodes) end = numNodes;
|
||||
|
||||
dmesg(String([start, end, numNodes]));
|
||||
window.dmesg(String([start, end, numNodes]));
|
||||
if (end <= start) return [];
|
||||
let n = self.atIndex(start);
|
||||
const array = [n];
|
||||
|
|
@ -356,56 +331,34 @@ that is a string.
|
|||
}
|
||||
return array;
|
||||
},
|
||||
atKey(key) {
|
||||
return _getNodeByKey(key).entry;
|
||||
},
|
||||
indexOfKey(key) {
|
||||
return _getNodeIndex(_getNodeByKey(key));
|
||||
},
|
||||
indexOfEntry(entry) {
|
||||
return self.indexOfKey(entry.key);
|
||||
},
|
||||
containsKey(key) {
|
||||
return !!(_getNodeByKey(key));
|
||||
},
|
||||
atKey: (key) => _getNodeByKey(key).entry,
|
||||
indexOfKey: (key) => _getNodeIndex(_getNodeByKey(key)),
|
||||
indexOfEntry: (entry) => self.indexOfKey(entry.key),
|
||||
containsKey: (key) => !!(_getNodeByKey(key)),
|
||||
// gets the last entry starting at or before the offset
|
||||
atOffset(offset) {
|
||||
return _getNodeAtOffset(offset).entry;
|
||||
},
|
||||
keyAtOffset(offset) {
|
||||
return self.atOffset(offset).key;
|
||||
},
|
||||
offsetOfKey(key) {
|
||||
return _getNodeIndex(_getNodeByKey(key), true);
|
||||
},
|
||||
offsetOfEntry(entry) {
|
||||
return self.offsetOfKey(entry.key);
|
||||
},
|
||||
setEntryWidth(entry, width) {
|
||||
atOffset: (offset) => _getNodeAtOffset(offset).entry,
|
||||
keyAtOffset: (offset) => self.atOffset(offset).key,
|
||||
offsetOfKey: (key) => _getNodeIndex(_getNodeByKey(key), true),
|
||||
offsetOfEntry: (entry) => self.offsetOfKey(entry.key),
|
||||
setEntryWidth: (entry, width) => {
|
||||
entry.width = width;
|
||||
_propagateWidthChange(_getNodeByKey(entry.key));
|
||||
},
|
||||
totalWidth() {
|
||||
return totalWidth;
|
||||
},
|
||||
offsetOfIndex(i) {
|
||||
totalWidth: () => totalWidth,
|
||||
offsetOfIndex: (i) => {
|
||||
if (i < 0) return 0;
|
||||
if (i >= numNodes) return totalWidth;
|
||||
return self.offsetOfEntry(self.atIndex(i));
|
||||
},
|
||||
indexOfOffset(offset) {
|
||||
indexOfOffset: (offset) => {
|
||||
if (offset <= 0) return 0;
|
||||
if (offset >= totalWidth) return numNodes;
|
||||
return self.indexOfEntry(self.atOffset(offset));
|
||||
},
|
||||
search(entryFunc) {
|
||||
return _search(entryFunc);
|
||||
},
|
||||
search: (entryFunc) => _search(entryFunc),
|
||||
// debugToString: _debugToString,
|
||||
debugGetPoint: _getPoint,
|
||||
debugDepth() {
|
||||
return start.levels;
|
||||
},
|
||||
debugDepth: () => start.levels,
|
||||
});
|
||||
}
|
||||
|
||||
|
|
|
|||
|
|
@ -1,3 +1,5 @@
|
|||
'use strict';
|
||||
|
||||
/**
|
||||
* This code is mostly from the old Etherpad. Please help us to comment this code.
|
||||
* This helps other people to understand this code better and helps them to improve it.
|
||||
|
|
@ -23,8 +25,8 @@
|
|||
const Changeset = require('./Changeset');
|
||||
const _ = require('./underscore');
|
||||
|
||||
var undoModule = (function () {
|
||||
const stack = (function () {
|
||||
const undoModule = (() => {
|
||||
const stack = (() => {
|
||||
const stackElements = [];
|
||||
// two types of stackElements:
|
||||
// 1) { elementType: UNDOABLE_EVENT, eventType: "anything", [backset: <changeset>,]
|
||||
|
|
@ -36,7 +38,7 @@ var undoModule = (function () {
|
|||
const UNDOABLE_EVENT = 'undoableEvent';
|
||||
const EXTERNAL_CHANGE = 'externalChange';
|
||||
|
||||
function clearStack() {
|
||||
const clearStack = () => {
|
||||
stackElements.length = 0;
|
||||
stackElements.push(
|
||||
{
|
||||
|
|
@ -44,22 +46,23 @@ var undoModule = (function () {
|
|||
eventType: 'bottom',
|
||||
});
|
||||
numUndoableEvents = 1;
|
||||
}
|
||||
};
|
||||
clearStack();
|
||||
|
||||
function pushEvent(event) {
|
||||
const pushEvent = (event) => {
|
||||
const e = _.extend(
|
||||
{}, event);
|
||||
e.elementType = UNDOABLE_EVENT;
|
||||
stackElements.push(e);
|
||||
numUndoableEvents++;
|
||||
// dmesg("pushEvent backset: "+event.backset);
|
||||
}
|
||||
};
|
||||
|
||||
function pushExternalChange(cs) {
|
||||
const pushExternalChange = (cs) => {
|
||||
const idx = stackElements.length - 1;
|
||||
if (stackElements[idx].elementType == EXTERNAL_CHANGE) {
|
||||
stackElements[idx].changeset = Changeset.compose(stackElements[idx].changeset, cs, getAPool());
|
||||
if (stackElements[idx].elementType === EXTERNAL_CHANGE) {
|
||||
stackElements[idx].changeset =
|
||||
Changeset.compose(stackElements[idx].changeset, cs, getAPool());
|
||||
} else {
|
||||
stackElements.push(
|
||||
{
|
||||
|
|
@ -67,14 +70,14 @@ var undoModule = (function () {
|
|||
changeset: cs,
|
||||
});
|
||||
}
|
||||
}
|
||||
};
|
||||
|
||||
function _exposeEvent(nthFromTop) {
|
||||
const _exposeEvent = (nthFromTop) => {
|
||||
// precond: 0 <= nthFromTop < numUndoableEvents
|
||||
const targetIndex = stackElements.length - 1 - nthFromTop;
|
||||
let idx = stackElements.length - 1;
|
||||
while (idx > targetIndex || stackElements[idx].elementType == EXTERNAL_CHANGE) {
|
||||
if (stackElements[idx].elementType == EXTERNAL_CHANGE) {
|
||||
while (idx > targetIndex || stackElements[idx].elementType === EXTERNAL_CHANGE) {
|
||||
if (stackElements[idx].elementType === EXTERNAL_CHANGE) {
|
||||
const ex = stackElements[idx];
|
||||
const un = stackElements[idx - 1];
|
||||
if (un.backset) {
|
||||
|
|
@ -86,15 +89,16 @@ var undoModule = (function () {
|
|||
const newSel = Changeset.characterRangeFollow(excs, un.selStart, un.selEnd);
|
||||
un.selStart = newSel[0];
|
||||
un.selEnd = newSel[1];
|
||||
if (un.selStart == un.selEnd) {
|
||||
if (un.selStart === un.selEnd) {
|
||||
un.selFocusAtStart = false;
|
||||
}
|
||||
}
|
||||
}
|
||||
stackElements[idx - 1] = ex;
|
||||
stackElements[idx] = un;
|
||||
if (idx >= 2 && stackElements[idx - 2].elementType == EXTERNAL_CHANGE) {
|
||||
ex.changeset = Changeset.compose(stackElements[idx - 2].changeset, ex.changeset, getAPool());
|
||||
if (idx >= 2 && stackElements[idx - 2].elementType === EXTERNAL_CHANGE) {
|
||||
ex.changeset =
|
||||
Changeset.compose(stackElements[idx - 2].changeset, ex.changeset, getAPool());
|
||||
stackElements.splice(idx - 2, 1);
|
||||
idx--;
|
||||
}
|
||||
|
|
@ -102,24 +106,22 @@ var undoModule = (function () {
|
|||
idx--;
|
||||
}
|
||||
}
|
||||
}
|
||||
};
|
||||
|
||||
function getNthFromTop(n) {
|
||||
const getNthFromTop = (n) => {
|
||||
// precond: 0 <= n < numEvents()
|
||||
_exposeEvent(n);
|
||||
return stackElements[stackElements.length - 1 - n];
|
||||
}
|
||||
};
|
||||
|
||||
function numEvents() {
|
||||
return numUndoableEvents;
|
||||
}
|
||||
const numEvents = () => numUndoableEvents;
|
||||
|
||||
function popEvent() {
|
||||
const popEvent = () => {
|
||||
// precond: numEvents() > 0
|
||||
_exposeEvent(0);
|
||||
numUndoableEvents--;
|
||||
return stackElements.pop();
|
||||
}
|
||||
};
|
||||
|
||||
return {
|
||||
numEvents,
|
||||
|
|
@ -134,12 +136,12 @@ var undoModule = (function () {
|
|||
// invariant: stack always has at least one undoable event
|
||||
let undoPtr = 0; // zero-index from top of stack, 0 == top
|
||||
|
||||
function clearHistory() {
|
||||
const clearHistory = () => {
|
||||
stack.clearStack();
|
||||
undoPtr = 0;
|
||||
}
|
||||
};
|
||||
|
||||
function _charOccurrences(str, c) {
|
||||
const _charOccurrences = (str, c) => {
|
||||
let i = 0;
|
||||
let count = 0;
|
||||
while (i >= 0 && i < str.length) {
|
||||
|
|
@ -150,13 +152,11 @@ var undoModule = (function () {
|
|||
}
|
||||
}
|
||||
return count;
|
||||
}
|
||||
};
|
||||
|
||||
function _opcodeOccurrences(cs, opcode) {
|
||||
return _charOccurrences(Changeset.unpack(cs).ops, opcode);
|
||||
}
|
||||
const _opcodeOccurrences = (cs, opcode) => _charOccurrences(Changeset.unpack(cs).ops, opcode);
|
||||
|
||||
function _mergeChangesets(cs1, cs2) {
|
||||
const _mergeChangesets = (cs1, cs2) => {
|
||||
if (!cs1) return cs2;
|
||||
if (!cs2) return cs1;
|
||||
|
||||
|
|
@ -170,40 +170,40 @@ var undoModule = (function () {
|
|||
const plusCount2 = _opcodeOccurrences(cs2, '+');
|
||||
const minusCount1 = _opcodeOccurrences(cs1, '-');
|
||||
const minusCount2 = _opcodeOccurrences(cs2, '-');
|
||||
if (plusCount1 == 1 && plusCount2 == 1 && minusCount1 == 0 && minusCount2 == 0) {
|
||||
var merge = Changeset.compose(cs1, cs2, getAPool());
|
||||
var plusCount3 = _opcodeOccurrences(merge, '+');
|
||||
var minusCount3 = _opcodeOccurrences(merge, '-');
|
||||
if (plusCount3 == 1 && minusCount3 == 0) {
|
||||
if (plusCount1 === 1 && plusCount2 === 1 && minusCount1 === 0 && minusCount2 === 0) {
|
||||
const merge = Changeset.compose(cs1, cs2, getAPool());
|
||||
const plusCount3 = _opcodeOccurrences(merge, '+');
|
||||
const minusCount3 = _opcodeOccurrences(merge, '-');
|
||||
if (plusCount3 === 1 && minusCount3 === 0) {
|
||||
return merge;
|
||||
}
|
||||
} else if (plusCount1 == 0 && plusCount2 == 0 && minusCount1 == 1 && minusCount2 == 1) {
|
||||
var merge = Changeset.compose(cs1, cs2, getAPool());
|
||||
var plusCount3 = _opcodeOccurrences(merge, '+');
|
||||
var minusCount3 = _opcodeOccurrences(merge, '-');
|
||||
if (plusCount3 == 0 && minusCount3 == 1) {
|
||||
} else if (plusCount1 === 0 && plusCount2 === 0 && minusCount1 === 1 && minusCount2 === 1) {
|
||||
const merge = Changeset.compose(cs1, cs2, getAPool());
|
||||
const plusCount3 = _opcodeOccurrences(merge, '+');
|
||||
const minusCount3 = _opcodeOccurrences(merge, '-');
|
||||
if (plusCount3 === 0 && minusCount3 === 1) {
|
||||
return merge;
|
||||
}
|
||||
}
|
||||
return null;
|
||||
}
|
||||
};
|
||||
|
||||
function reportEvent(event) {
|
||||
const reportEvent = (event) => {
|
||||
const topEvent = stack.getNthFromTop(0);
|
||||
|
||||
function applySelectionToTop() {
|
||||
const applySelectionToTop = () => {
|
||||
if ((typeof event.selStart) === 'number') {
|
||||
topEvent.selStart = event.selStart;
|
||||
topEvent.selEnd = event.selEnd;
|
||||
topEvent.selFocusAtStart = event.selFocusAtStart;
|
||||
}
|
||||
}
|
||||
};
|
||||
|
||||
if ((!event.backset) || Changeset.isIdentity(event.backset)) {
|
||||
applySelectionToTop();
|
||||
} else {
|
||||
let merged = false;
|
||||
if (topEvent.eventType == event.eventType) {
|
||||
if (topEvent.eventType === event.eventType) {
|
||||
const merge = _mergeChangesets(event.backset, topEvent.backset);
|
||||
if (merge) {
|
||||
topEvent.backset = merge;
|
||||
|
|
@ -225,15 +225,15 @@ var undoModule = (function () {
|
|||
}
|
||||
undoPtr = 0;
|
||||
}
|
||||
}
|
||||
};
|
||||
|
||||
function reportExternalChange(changeset) {
|
||||
const reportExternalChange = (changeset) => {
|
||||
if (changeset && !Changeset.isIdentity(changeset)) {
|
||||
stack.pushExternalChange(changeset);
|
||||
}
|
||||
}
|
||||
};
|
||||
|
||||
function _getSelectionInfo(event) {
|
||||
const _getSelectionInfo = (event) => {
|
||||
if ((typeof event.selStart) !== 'number') {
|
||||
return null;
|
||||
} else {
|
||||
|
|
@ -243,7 +243,7 @@ var undoModule = (function () {
|
|||
selFocusAtStart: event.selFocusAtStart,
|
||||
};
|
||||
}
|
||||
}
|
||||
};
|
||||
|
||||
// For "undo" and "redo", the change event must be returned
|
||||
// by eventFunc and NOT reported through the normal mechanism.
|
||||
|
|
@ -251,7 +251,7 @@ var undoModule = (function () {
|
|||
// or can be called with no arguments to mean that no undo is possible.
|
||||
// "eventFunc" will be called exactly once.
|
||||
|
||||
function performUndo(eventFunc) {
|
||||
const performUndo = (eventFunc) => {
|
||||
if (undoPtr < stack.numEvents() - 1) {
|
||||
const backsetEvent = stack.getNthFromTop(undoPtr);
|
||||
const selectionEvent = stack.getNthFromTop(undoPtr + 1);
|
||||
|
|
@ -259,9 +259,9 @@ var undoModule = (function () {
|
|||
stack.pushEvent(undoEvent);
|
||||
undoPtr += 2;
|
||||
} else { eventFunc(); }
|
||||
}
|
||||
};
|
||||
|
||||
function performRedo(eventFunc) {
|
||||
const performRedo = (eventFunc) => {
|
||||
if (undoPtr >= 2) {
|
||||
const backsetEvent = stack.getNthFromTop(0);
|
||||
const selectionEvent = stack.getNthFromTop(1);
|
||||
|
|
@ -269,11 +269,9 @@ var undoModule = (function () {
|
|||
stack.popEvent();
|
||||
undoPtr -= 2;
|
||||
} else { eventFunc(); }
|
||||
}
|
||||
};
|
||||
|
||||
function getAPool() {
|
||||
return undoModule.apool;
|
||||
}
|
||||
const getAPool = () => undoModule.apool;
|
||||
|
||||
return {
|
||||
clearHistory,
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue