diff options
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/dom_utils.coffee | 1 | ||||
| -rw-r--r-- | lib/handler_stack.coffee | 34 |
2 files changed, 34 insertions, 1 deletions
diff --git a/lib/dom_utils.coffee b/lib/dom_utils.coffee index 9d7ca867..322188b3 100644 --- a/lib/dom_utils.coffee +++ b/lib/dom_utils.coffee @@ -206,6 +206,7 @@ DomUtils = # Suppress the next keyup event for Escape. suppressKeyupAfterEscape: (handlerStack) -> handlerStack.push + _name: "dom_utils/suppressKeyupAfterEscape" keyup: (event) -> return true unless KeyboardUtils.isEscape event @remove() diff --git a/lib/handler_stack.coffee b/lib/handler_stack.coffee index 44c7538b..22d04941 100644 --- a/lib/handler_stack.coffee +++ b/lib/handler_stack.coffee @@ -3,6 +3,8 @@ root = exports ? window class HandlerStack constructor: -> + @debug = false + @eventNumber = 0 @stack = [] @counter = 0 @@ -22,8 +24,10 @@ class HandlerStack # Adds a handler to the top of the stack. Returns a unique ID for that handler that can be used to remove it # later. push: (handler) -> - @stack.push handler handler.id = ++@counter + handler._name ||= "anon-#{@counter}" + @stack.push handler + handler.id # Adds a handler to the bottom of the stack. Returns a unique ID for that handler that can be used to remove # it later. @@ -35,6 +39,7 @@ class HandlerStack # event's propagation by returning a falsy value, or stop bubbling by returning @stopBubblingAndFalse or # @stopBubblingAndTrue. bubbleEvent: (type, event) -> + @eventNumber += 1 # We take a copy of the array in order to avoid interference from concurrent removes (for example, to # avoid calling the same handler twice, because elements have been spliced out of the array by remove). for handler in @stack[..].reverse() @@ -42,6 +47,7 @@ class HandlerStack if handler?.id and handler[type] @currentId = handler.id result = handler[type].call @, event + @logResult type, event, handler, result if @debug if not result DomUtils.suppressEvent(event) if @isChromeEvent event return false @@ -75,5 +81,31 @@ class HandlerStack handler() false + # Debugging. + debugOn: -> @debug = true + debugOff: -> @debug = false + + logResult: (type, event, handler, result) -> + # FIXME(smblott). Badge updating is too noisy, so we filter it out. However, we do need to look at how + # many badge update events are happening. It seems to be more than necessary. + return if type == "updateBadge" + label = + switch result + when @stopBubblingAndTrue then "stop/true" + when @stopBubblingAndFalse then "stop/false" + when @restartBubbling then "rebubble" + when true then "continue" + label ||= if result then "continue/truthy" else "suppress" + @log @eventNumber, type, handler._name, label + + logRecords: [] + log: (args...) -> + line = args.join " " + @logRecords.push line + console.log line + + clipLog: -> + Clipboard.copy logRecords.join "\n" + root.HandlerStack = HandlerStack root.handlerStack = new HandlerStack |