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handle undo/redo for (partially or fully) unsuccessful copy/paste/move operations

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This commit is contained in:
rolux 2013-08-04 11:20:46 +00:00
parent b1a8d76e83
commit ba5f39bac5
1 changed files with 65 additions and 40 deletions
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101
static/js/utils.js
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@ -290,6 +290,17 @@ pandora.createLinks = function($element) {
pandora.doHistory = function(action, items, targets, callback) {
items = Ox.makeArray(items);
targets = Ox.makeArray(targets);
if (action == 'copy' || action == 'paste') {
addItems(items, targets[0], addToHistory);
} else if (action == 'cut' || action == 'delete') {
removeItems(items, targets[0], addToHistory);
} else if (action == 'move') {
removeItems(
items, targets[0],
addItems(items, targets[1], addToHistory)
);
}
function addToHistory(result, addedItems) {
var actions = {
copy: 'Copying',
cut: 'Cutting',
@ -302,20 +313,11 @@ pandora.createLinks = function($element) {
items.length == 1 ? Ox._(type == 'item' ? pandora.site.itemName.singular : 'Clip')
: items.length + ' ' + Ox._(type == 'item' ? pandora.site.itemName.plural : 'Clips')
);
if (action == 'copy' || action == 'paste') {
addItems(items, targets[0], addToHistory);
} else if (action == 'cut' || action == 'delete') {
removeItems(items, targets[0], addToHistory);
} else if (action == 'move') {
removeItems(
items, targets[0],
addItems(items, targets[1], addToHistory)
);
}
function addToHistory(result) {
pandora.history.add({
action: action,
items: items,
items: action == 'cut' || action == 'delete' ? items
: action == 'copy' || action == 'paste' ? addedItems
: [items, addedItems],
targets: targets,
text: text
});
@ -327,46 +329,69 @@ pandora.createLinks = function($element) {
pandora.redoHistory = function(callback) {
var object = pandora.history.redo();
if (object) {
if (object.action == 'copy' || object.action == 'paste') {
addItems(object.items, object.targets[0], done(object, callback));
} else if (object.action == 'cut' || object.action == 'delete') {
removeItems(object.items, object.targets[0], done(object, callback));
} else if (object.action == 'move') {
removeItems(
object.items, object.targets[0],
addItems(object.items, object.targets[1], done(object, callback))
);
}
pandora.$ui.mainMenu.replaceItemMenu();
if (object.action == 'copy' || object.action == 'paste') {
addItems(object.items, object.targets[0], done);
} else if (object.action == 'cut' || object.action == 'delete') {
removeItems(object.items, object.targets[0], done);
} else if (object.action == 'move') {
removeItems(object.items[0], object.targets[0], function() {
addItems(object.items[1], object.targets[1], done);
});
}
}
function done() {
doneHistory(object, callback);
}
};
pandora.undoHistory = function(callback) {
var object = pandora.history.undo();
if (object) {
if (object.action == 'copy' || object.action == 'paste') {
removeItems(object.items, object.targets[0], done(object, callback));
} else if (object.action == 'cut' || object.action == 'delete') {
addItems(object.items, object.targets[0], done(object, callback));
} else if (object.action == 'move') {
removeItems(
object.items, object.targets[1],
addItems(object.items, object.targets[0], done(object, callback))
);
}
pandora.$ui.mainMenu.replaceItemMenu();
if (object.action == 'copy' || object.action == 'paste') {
removeItems(object.items, object.targets[0], done);
} else if (object.action == 'cut' || object.action == 'delete') {
addItems(object.removedItems, object.targets[0], done);
} else if (object.action == 'move') {
removeItems(object.items[1], object.targets[1], function() {
addItems(object.items[0], object.targets[0], done);
});
}
}
function done() {
doneHistory(object, callback);
}
};
function addItems(items, target, callback) {
var type = getType(items);
pandora.api[type == 'item' ? 'addListItems' : 'addClips'](
Ox.extend({items: items}, type == 'item' ? 'list' : 'edit', target),
callback
);
if (type == 'item') {
pandora.api.find({
query: {
conditions: [{key: 'list', operator: '==', value: target}],
operator: '&'
},
positions: items
}, function(result) {
var existingItems = Object.keys(result.data.positions),
addedItems = items.filter(function(item) {
return !Ox.contains(existingItems, item);
});
if (addedItems.length) {
pandora.api.addListItems({items: addedItems, list: target}, function(result) {
callback(result, addedItems);
});
} else {
callback(null, []);
}
});
} else {
pandora.api.addClips({items: items, edit: target}, callback);
}
}
function done(object, callback) {
function doneHistory(object, callback) {
var list, listData,
type = getType(object.items),
ui = pandora.user.ui;
@ -398,7 +423,7 @@ pandora.createLinks = function($element) {
}
function getType(items) {
return Ox.contains(items[0], '/') ? 'clip' : 'item';
return items[0] && Ox.contains(items[0], '/') ? 'clip' : 'item';
};
function removeItems(items, target, callback) {