feat(tooltip): added tooltip-html-unsafe directive

The directive displays the unsanitized HTML in the tooltip instead of
the escaped text.

The $tooltip service has been modified to allow a little more
flexibility in terms of the prefix used on the $observe'd attributes.
For example, the `tooltip-html-unsafe` directive needs to be called as
written, but it would be nonsensical to require all other attributes
(like animation or placement) to also use that verbose prefix as opposed
to the simpler and more familiar `tooltip-` prefix. The service now
allows independent specification of the name and its prefix.

Lastly, the docs for the tooltip and popover have been updated to show
their available optional attributes.

Closes #246

Author: Josh David Miller

Diff for: src/popover/docs/readme.md

@@ -3,3 +3,14 @@ directive supports multiple placements, optional transition animation, and more.
 
 Like the Twitter Bootstrap jQuery plugin, the popover **requires** the tooltip
 module.
+
+The popover directives provides several optional attributes to control how it
+will display:
+
+- `popover-title`: A string to display as a fancy title.
+- `popover-placement`: Where to place it? Defaults to "top", but also accepts
+  "bottom", "left", or "right".
+- `popover-animation`: Should it fade in and out? Defaults to "true".
+- `popover-popup-delay`: For how long should the user have to have the mouse
+  over the element before the popover shows (in milliseconds)? Defaults to 0.
+

Diff for: src/popover/popover.js

@@ -13,6 +13,6 @@ angular.module( 'ui.bootstrap.popover', [ 'ui.bootstrap.tooltip' ] )
   };
 })
 .directive( 'popover', [ '$compile', '$timeout', '$parse', '$window', '$tooltip', function ( $compile, $timeout, $parse, $window, $tooltip ) {
-  return $tooltip( 'popover', 'click' );
+  return $tooltip( 'popover', 'popover', 'click' );
 }]);
 

Diff for: src/tooltip/docs/demo.html

@@ -16,5 +16,9 @@
       at elementum eu, facilisis sed odio morbi quis commodo odio. In cursus
       <a><span tooltip-popup-delay='1000' tooltip='appears with delay'>delayed</span></a> turpis massa tincidunt dui ut.
     </p>
+
+    <p>
+      I can even contain HTML. <a><span tooltip-html-unsafe="{{htmlTooltip}}">Check me out!</span></a>
+    </p>
   </div>
 </div>

Diff for: src/tooltip/docs/demo.js

@@ -1,4 +1,5 @@
 var TooltipDemoCtrl = function ($scope) {
   $scope.dynamicTooltip = "Hello, World!";
   $scope.dynamicTooltipText = "dynamic";
+  $scope.htmlTooltip = "I've been made <b>bold</b>!";
 };

Diff for: src/tooltip/docs/readme.md

@@ -1,2 +1,18 @@
 A lightweight, extensible directive for fancy tooltip creation. The tooltip
 directive supports multiple placements, optional transition animation, and more.
+
+There are two versions of the tooltip: `tooltip` and `tooltip-html-unsafe`. The
+former takes text only and will escape any HTML provided. The latter takes
+whatever HTML is provided and displays it in a tooltip; it called "unsafe"
+because the HTML is not sanitized. *The user is responsible for ensuring the
+content is safe to put into the DOM!*
+
+The tooltip directives provide several optional attributes to control how they
+will display:
+
+- `tooltip-placement`: Where to place it? Defaults to "top", but also accepts
+  "bottom", "left", or "right".
+- `tooltip-animation`: Should it fade in and out? Defaults to "true".
+- `tooltip-popup-delay`: For how long should the user have to have the mouse
+  over the element before the tooltip shows (in milliseconds)? Defaults to 0.
+

Diff for: src/tooltip/test/tooltip.spec.js

@@ -163,6 +163,44 @@ describe('tooltip', function() {
 
 });
 
+describe( 'tooltipHtmlUnsafe', function() {
+  var elm, elmBody, scope;
+
+  // load the tooltip code
+  beforeEach(module('ui.bootstrap.tooltip', function ( $tooltipProvider ) {
+    $tooltipProvider.options({ animation: false });
+  }));
+
+  // load the template
+  beforeEach(module('template/tooltip/tooltip-html-unsafe-popup.html'));
+
+  beforeEach(inject(function($rootScope, $compile) {
+    scope = $rootScope;
+    scope.html = 'I say: <strong class="hello">Hello!</strong>';
+
+    elmBody = $compile( angular.element(
+      '<div><span tooltip-html-unsafe="{{html}}">Selector Text</span></div>'
+    ))( scope );
+    scope.$digest();
+    elm = elmBody.find('span');
+    elmScope = elm.scope();
+  }));
+
+  it( 'should show on mouseenter and hide on mouseleave', inject( function () {
+    expect( elmScope.tt_isOpen ).toBe( false );
+
+    elm.trigger( 'mouseenter' );
+    expect( elmScope.tt_isOpen ).toBe( true );
+    expect( elmBody.children().length ).toBe( 2 );
+
+    expect( elmScope.tt_content ).toEqual( scope.html );
+
+    elm.trigger( 'mouseleave' );
+    expect( elmScope.tt_isOpen ).toBe( false );
+    expect( elmBody.children().length ).toBe( 1 );
+  }));
+});
+
 describe( '$tooltipProvider', function() {
 
   describe( 'popupDelay', function() {

Diff for: src/tooltip/tooltip.js

@@ -33,23 +33,35 @@ angular.module( 'ui.bootstrap.tooltip', [] )
 		angular.extend( globalOptions, value );
 	};
 
+  /**
+   * This is a helper function for translating camel-case to snake-case.
+   */
+  function snake_case(name){
+    var regexp = /[A-Z]/g;
+    var separator = '-';
+    return name.replace(regexp, function(letter, pos) {
+      return (pos ? separator : '') + letter.toLowerCase();
+    });
+  }
+
   /**
    * Returns the actual instance of the $tooltip service.
    * TODO support multiple triggers
    */
   this.$get = [ '$window', '$compile', '$timeout', '$parse', '$document', function ( $window, $compile, $timeout, $parse, $document ) {
-    return function $tooltip ( type, defaultTriggerShow, defaultTriggerHide ) {
+    return function $tooltip ( type, prefix, defaultTriggerShow, defaultTriggerHide ) {
       var options = angular.extend( {}, defaultOptions, globalOptions );
+      var directiveName = snake_case( type );
 
       var template = 
-        '<'+ type +'-popup '+
+        '<'+ directiveName +'-popup '+
           'title="{{tt_title}}" '+
           'content="{{tt_content}}" '+
           'placement="{{tt_placement}}" '+
           'animation="tt_animation()" '+
           'is-open="tt_isOpen"'+
           '>'+
-        '</'+ type +'-popup>';
+        '</'+ directiveName +'-popup>';
 
       // Calculate the current position and size of the directive element.
       function getPosition( element ) {
@@ -75,19 +87,19 @@ angular.module( 'ui.bootstrap.tooltip', [] )
             scope.tt_content = val;
           });
 
-          attrs.$observe( type+'Title', function ( val ) {
+          attrs.$observe( prefix+'Title', function ( val ) {
             scope.tt_title = val;
           });
 
-          attrs.$observe( type+'Placement', function ( val ) {
+          attrs.$observe( prefix+'Placement', function ( val ) {
             scope.tt_placement = angular.isDefined( val ) ? val : options.placement;
           });
 
-          attrs.$observe( type+'Animation', function ( val ) {
+          attrs.$observe( prefix+'Animation', function ( val ) {
             scope.tt_animation = angular.isDefined( val ) ? $parse( val ) : function(){ return options.animation; };
           });
 
-          attrs.$observe( type+'PopupDelay', function ( val ) {
+          attrs.$observe( prefix+'PopupDelay', function ( val ) {
             var delay = parseInt( val, 10 );
             scope.tt_popupDelay = ! isNaN(delay) ? delay : options.popupDelay;
           });
@@ -232,6 +244,21 @@ angular.module( 'ui.bootstrap.tooltip', [] )
 })
 
 .directive( 'tooltip', [ '$tooltip', function ( $tooltip ) {
-  return $tooltip( 'tooltip', 'mouseenter', 'mouseleave' );
-}]);
+  return $tooltip( 'tooltip', 'tooltip', 'mouseenter', 'mouseleave' );
+}])
+
+.directive( 'tooltipHtmlUnsafePopup', function () {
+  return {
+    restrict: 'E',
+    replace: true,
+    scope: { content: '@', placement: '@', animation: '&', isOpen: '&' },
+    templateUrl: 'template/tooltip/tooltip-html-unsafe-popup.html'
+  };
+})
+
+.directive( 'tooltipHtmlUnsafe', [ '$tooltip', function ( $tooltip ) {
+  return $tooltip( 'tooltipHtmlUnsafe', 'tooltip', 'mouseenter', 'mouseleave' );
+}])
+
+;
 

Diff for: template/tooltip/tooltip-html-unsafe-popup.html

@@ -0,0 +1,4 @@
+<div class="tooltip {{placement}}" ng-class="{ in: isOpen(), fade: animation() }">
+  <div class="tooltip-arrow"></div>
+  <div class="tooltip-inner" ng-bind-html-unsafe="content"></div>
+</div>