Index: content/renderer/hyphenator/hyphenator.h |
=================================================================== |
--- content/renderer/hyphenator/hyphenator.h (revision 154648) |
+++ content/renderer/hyphenator/hyphenator.h (working copy) |
@@ -11,6 +11,8 @@ |
#include "base/platform_file.h" |
#include "base/string16.h" |
#include "content/common/content_export.h" |
+#include "content/public/renderer/render_process_observer.h" |
+#include "ipc/ipc_platform_file.h" |
namespace file_util { |
class MemoryMappedFile; |
@@ -19,33 +21,47 @@ |
typedef struct _HyphenDict HyphenDict; |
namespace content { |
+class RenderThread; |
// A class that hyphenates a word. This class encapsulates the hyphen library |
// and manages resources used by the library. When this class uses a huge |
// dictionary, it takes lots of memory (~1.3MB for English). A renderer should |
// create this object only when it renders a page that needs hyphenation and |
// deletes it when it moves to a page that does not need hyphenation. |
-class CONTENT_EXPORT Hyphenator { |
+class CONTENT_EXPORT Hyphenator : public RenderProcessObserver { |
public: |
explicit Hyphenator(base::PlatformFile file); |
- ~Hyphenator(); |
+ virtual ~Hyphenator(); |
// Initializes the hyphen library and allocates resources needed for |
// hyphenation. |
bool Initialize(); |
+ bool Attach(content::RenderThread* thread, const string16& locale); |
+ |
+ // Returns whether this object can hyphenate words. When this object does not |
+ // have a dictionary file attached, this function sends an IPC request to open |
+ // the file. |
+ bool CanHyphenate(const string16& locale); |
+ |
// Returns the last hyphenation point, the position where we can insert a |
// hyphen, before the given position. If there are not any hyphenation points, |
// this function returns 0. |
size_t ComputeLastHyphenLocation(const string16& word, size_t before_index); |
+ // RenderProcessObserver implementation. |
+ virtual bool OnControlMessageReceived(const IPC::Message& message) OVERRIDE; |
+ |
private: |
+ void OnSetDictionary(IPC::PlatformFileForTransit rule_file); |
+ |
// The dictionary used by the hyphen library. |
HyphenDict* dictionary_; |
// The dictionary file and its memory-mapping object. (Our copy of the hyphen |
// library uses a memory-mapped file opened by a browser so renderers can use |
// it without opening the file.) |
+ string16 locale_; |
base::PlatformFile rule_file_; |
scoped_ptr<file_util::MemoryMappedFile> rule_map_; |