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do a bit of work to preserve cursors

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This commit is contained in:
ansuz 2016-11-14 18:03:17 +01:00
parent ac43f4cb1f
commit eb50177201
1 changed files with 26 additions and 8 deletions
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34
www/poll/test/render.js
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@ -1,8 +1,9 @@
define([
'/common/cryptpad-common.js',
'/bower_components/hyperjson/hyperjson.js',
'/bower_components/textpatcher/TextPatcher.js',
'/bower_components/diff-dom/diffDOM.js',
], function (Cryptpad, Hyperjson) {
], function (Cryptpad, Hyperjson, TextPatcher) {
var DiffDOM = window.diffDOM;
var Example = {
@ -274,6 +275,28 @@ by maintaining indexes in rowsOrder and colsOrder
return Cryptpad.find(info, ['node', 'type']);
};
var preserveCursor = Render.preserveCursor = function (info) {
if (['modifyValue', 'modifyAttribute'].indexOf(info.diff.action) !== -1) {
var element = info.node;
var o = info.oldValue || '';
var n = info.newValue || '';
var op = TextPatcher.diff(o, n);
info.selection = ['selectionStart', 'selectionEnd'].map(function (attr) {
var before = info.node[attr];
var after = TextPatcher.transformCursor(element[attr], op);
return after;
});
}
};
var recoverCursor = Render.recoverCursor = function (info) {
if (info.selection && info.node) {
info.node.selectionStart = info.selection[0];
info.node.selectionEnd = info.selection[1];
}
};
var diffOptions = {
preDiffApply: function (info) {
if (!diffIsInput(info)) { return; }
@ -281,20 +304,15 @@ by maintaining indexes in rowsOrder and colsOrder
case 'checkbox':
//console.log('checkbox');
//console.log("[preDiffApply]", info);
/*
['modifyAttribute',
'addAttribute',
'removeAttribute'
].some(function (x) {
//if (x === info.diff.action) { }
});*/
break;
case 'text':
preserveCursor(info);
break;
default: break;
}
},
postDiffApply: function (info) {
if (info.selection) { recoverCursor(info); }
/*
if (!diffIsInput(info)) { return; }
switch (getInputType(info)) {