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directive_module.directive('apollodiff',
function ($compile, $window) {
return {
restrict: 'E',
templateUrl: '../../views/component/diff.html',
transclude: true,
replace: true,
scope: {
oldStr: '=',
newStr: '=',
apolloId: '='
},
link: function (scope, element, attrs) {
scope.$watch('oldStr', makeDiff);
scope.$watch('newStr', makeDiff);
function makeDiff() {
var displayArea = document.getElementById(scope.apolloId);
if (!displayArea){
return;
}
//clear
displayArea.innerHTML = '';
var color = '',
span = null,
pre = '';
var diff = JsDiff.diffLines(scope.oldStr, scope.newStr),
fragment = document.createDocumentFragment();
diff.forEach(function (part) {
// green for additions, red for deletions
// grey for common parts
color = part.added ? 'green' :
part.removed ? 'red' : 'grey';
span = document.createElement('span');
span.style.color = color;
pre = part.added ? '+' :
part.removed ? '-' : '';
span.appendChild(document.createTextNode(pre + part.value));
fragment.appendChild(span);
});
displayArea.appendChild(fragment);
}
}
}
});