glowing-bear/js/filters.js

129 lines
4.9 KiB
JavaScript

(function() {
'use strict';
var weechat = angular.module('weechat');
weechat.filter('toArray', function () {
return function (obj, storeIdx) {
if (!(obj instanceof Object)) {
return obj;
}
if (storeIdx) {
return Object.keys(obj).map(function (key, idx) {
return Object.defineProperties(obj[key], {
'$key' : { value: key },
'$idx' : { value: idx, configurable: true }
});
});
}
return Object.keys(obj).map(function (key) {
return Object.defineProperty(obj[key], '$key', { value: key });
});
};
});
weechat.filter('irclinky', ['$filter', function($filter) {
return function(text) {
if (!text) {
return text;
}
// This regex in no way matches all IRC channel names (they could also begin with &, + or an
// exclamation mark followed by 5 alphanumeric characters, and are bounded in length by 50).
// However, it matches all *common* IRC channels while trying to minimise false positives.
// "#1" is much more likely to be "number 1" than "IRC channel #1".
// Thus, we only match channels beginning with a # and having at least one letter in them.
var channelRegex = /(^|[\s,.:;?!"'()+@-\~%])(#+[^\x00\x07\r\n\s,:]*[a-z][^\x00\x07\r\n\s,:]*)/gmi;
// This is SUPER nasty, but ng-click does not work inside a filter, as the markup has to be $compiled first, which is not possible in filter afaik.
// Therefore, get the scope, fire the method, and $apply. Yuck. I sincerely hope someone finds a better way of doing this.
var substitute = '$1<a href="#" onclick="var $scope = angular.element(event.target).scope(); $scope.openBuffer(\'$2\'); $scope.$apply();">$2</a>';
return text.replace(channelRegex, substitute);
};
}]);
weechat.filter('inlinecolour', function() {
return function(text) {
if (!text) {
return text;
}
// only match 6-digit colour codes, 3-digit ones have too many false positives (issue numbers, etc)
var hexColourRegex = /(^|[^&])\#([0-9a-f]{6})($|[^\w'"])/gmi;
var substitute = '$1#$2 <div class="colourbox" style="background-color:#$2"></div> $3';
return text.replace(hexColourRegex, substitute);
};
});
// apply a filter to an HTML string's text nodes, and do so with not exceedingly terrible performance
weechat.filter('DOMfilter', ['$filter', '$sce', function($filter, $sce) {
return function(text, filter) {
if (!text || !filter) {
return text;
}
var filterFunction = $filter(filter);
var el = document.createElement('div');
el.innerHTML = text;
// Recursive DOM-walking function applying the filter to the text nodes
var process = function(node) {
if (node.nodeType === 3) { // text node
var value = filterFunction(node.nodeValue);
if (value !== node.nodeValue) {
// we changed something. create a new node to replace the current one
// we could also only add its children but that would probably incur
// more overhead than it would gain us
var newNode = document.createElement('span');
newNode.innerHTML = value;
var parent = node.parentNode;
var sibling = node.nextSibling;
parent.removeChild(node);
if (sibling) {
parent.insertBefore(newNode, sibling);
} else {
parent.appendChild(newNode);
}
}
}
// recurse
node = node.firstChild;
while (node) {
process(node);
node = node.nextSibling;
}
};
process(el);
return $sce.trustAsHtml(el.innerHTML);
};
}]);
weechat.filter('getBufferQuickKeys', function () {
return function (obj, $scope) {
if (!$scope) { return obj; }
if (($scope.search !== undefined && $scope.search.length) || $scope.onlyUnread) {
obj.forEach(function(buf, idx) {
buf.$quickKey = idx < 10 ? (idx + 1) % 10 : '';
});
} else {
_.map(obj, function(buffer, idx) {
return [buffer.number, buffer.$idx, idx];
}).sort(function(left, right) {
// By default, Array.prototype.sort() sorts alphabetically.
// Pass an ordering function to sort by first element.
return left[0] - right[0] || left[1] - right[1];
}).forEach(function(info, keyIdx) {
obj[ info[2] ].$quickKey = keyIdx < 10 ? (keyIdx + 1) % 10 : '';
});
}
return obj;
};
});
})();