content/base/src/nsScriptElement.h

   1 /* This Source Code Form is subject to the terms of the Mozilla Public
   2  * License, v. 2.0. If a copy of the MPL was not distributed with this
   3  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   4
   5 #ifndef nsScriptElement_h
   6 #define nsScriptElement_h
   7
   8 #include "mozilla/Attributes.h"
   9 #include "nsIScriptLoaderObserver.h"
  10 #include "nsIScriptElement.h"
  11 #include "nsStubMutationObserver.h"
  12
  13 /**
  14  * Baseclass useful for script elements (such as <xhtml:script> and
  15  * <svg:script>). Currently the class assumes that only the 'src'
  16  * attribute and the children of the class affect what script to execute.
  17  */
  18
  19 class nsScriptElement : public nsIScriptElement,
  20                         public nsStubMutationObserver
  21 {
  22 public:
  23   // nsIScriptLoaderObserver
  24   NS_DECL_NSISCRIPTLOADEROBSERVER
  25
  26   // nsIMutationObserver
  27   NS_DECL_NSIMUTATIONOBSERVER_CHARACTERDATACHANGED
  28   NS_DECL_NSIMUTATIONOBSERVER_ATTRIBUTECHANGED
  29   NS_DECL_NSIMUTATIONOBSERVER_CONTENTAPPENDED
  30   NS_DECL_NSIMUTATIONOBSERVER_CONTENTINSERTED
  31
  32   explicit nsScriptElement(mozilla::dom::FromParser aFromParser)
  33     : nsIScriptElement(aFromParser)
  34   {
  35   }
  36
  37   virtual nsresult FireErrorEvent() MOZ_OVERRIDE;
  38
  39 protected:
  40   // Internal methods
  41
  42   /**
  43    * Check if this element contains any script, linked or inline
  44    */
  45   virtual bool HasScriptContent() = 0;
  46
  47   virtual bool MaybeProcessScript() MOZ_OVERRIDE;
  48 };
  49
  50 #endif // nsScriptElement_h