wikimedia/mediawiki-extensions-VisualEditor
1
0
Fork 0
mirror of https://gerrit.wikimedia.org/r/mediawiki/extensions/VisualEditor synced 2024-09-25 19:26:46 +00:00
Code Issues Packages Projects Releases Wiki Activity

Added isNoOp to ve.dm.Transaction

Browse source 
Also added some checks in content branch conversion to make sure that converting from and to the same thing results in a no-op

Change-Id: Ie47520d666e45a77d12c7ebb9457aef7ab6b8097
This commit is contained in:
Trevor Parscal 2012-08-10 15:35:48 -07:00
parent fed1a98dd7
commit a0fa371481
2 changed files with 21 additions and 1 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

2
modules/ve/dm/ve.dm.Surface.js
View file

@ -88,7 +88,7 @@ ve.dm.Surface.prototype.getFragment = function () {
* @param {ve.Range|undefined} selection
*/
ve.dm.Surface.prototype.change = function ( transaction, selection ) {
if ( transaction ) {
if ( transaction && !transaction.isNoOp() ) {
this.bigStack = this.bigStack.slice( 0, this.bigStack.length - this.undoIndex );
this.undoIndex = 0;
this.smallStack.push( transaction );

20
modules/ve/dm/ve.dm.Transaction.js
View file

@ -278,6 +278,10 @@ ve.dm.Transaction.newFromContentBranchConversion = function ( doc, range, type,
selected = selection[i];
if ( selected.node.isContent() ) {
branch = selected.node.getParent();
// Skip branches that are already of the target type and have identical attributes
if ( branch.getType() === type && ve.compareObjects( branch.getAttributes(), attr ) ) {
continue;
}
branchOuterRange = branch.getOuterRange();
// Don't convert the same branch twice
if ( branch === previousBranch ) {
@ -443,6 +447,22 @@ ve.dm.Transaction.newFromWrap = function ( doc, range, unwrapOuter, wrapOuter, u
/* Methods */
/**
* Checks if transaction would make any actual changes if processed.
*
* There may be more sophisticated checks that can be done, like looking for things being replaced
* with identical content, but such transactions probably should not be created in the first place.
*
* @method
* @returns {Boolean} Transaction is no-op
*/
ve.dm.Transaction.prototype.isNoOp = function () {
return (
this.operations.length === 0 ||
( this.operations.length === 1 && this.operations[0].type === 'retain' )
);
};
/**
* Gets a list of all operations.
*