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/*
==============================================================================
This file is part of the JUCE library.
Copyright (c) 2015 - ROLI Ltd.
Permission is granted to use this software under the terms of either:
a) the GPL v2 (or any later version)
b) the Affero GPL v3
Details of these licenses can be found at: www.gnu.org/licenses
JUCE is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
A PARTICULAR PURPOSE. See the GNU General Public License for more details.
------------------------------------------------------------------------------
To release a closed-source product which uses JUCE, commercial licenses are
available: visit www.juce.com for more information.
==============================================================================
*/
struct MessageHandler
{
virtual ~MessageHandler() {}
virtual bool sendMessage (const ValueTree&) = 0;
static MemoryBlock convertMessage (const ValueTree& tree)
{
MemoryOutputStream out;
tree.writeToStream (out);
return out.getMemoryBlock();
}
static ValueTree convertMessage (const MemoryBlock& rawData)
{
return ValueTree::readFromData (rawData.getData(), rawData.getSize());
}
};
//==============================================================================
static inline Rectangle<int> varToRect (const var& v)
{
if (const Array<var>* obj = v.getArray())
{
if (obj->size() == 4)
{
int intArray[4];
for (int i = 0; i < 4; ++i)
{
const var& p = obj->getReference (i);
if (p.isInt() || p.isDouble() || p.isInt64())
intArray[i] = static_cast<int> (p);
else
return Rectangle<int>();
}
return Rectangle<int> (intArray[0], intArray[1], intArray[2], intArray[3]);
}
}
return Rectangle<int>();
}
static inline var rectToVar (const Rectangle<int>& rect)
{
Array<var> retval;
retval.add (var (rect.getX()));
retval.add (var (rect.getY()));
retval.add (var (rect.getWidth()));
retval.add (var (rect.getHeight()));
return var (retval);
}
//==============================================================================
namespace MessageTypes
{
inline bool send (MessageHandler& target, const ValueTree& v)
{
//DBG ("Send: " << v.getType().toString());
bool result = target.sendMessage (v);
if (! result)
{
DBG ("*** Message failed: " << v.getType().toString());
}
return result;
}
inline bool sendPing (MessageHandler& target)
{
return send (target, ValueTree (PING));
}
//==============================================================================
// client -> server
inline void sendOpenPreview (MessageHandler& target, const ClassDatabase::Class& comp, Rectangle<int> mainWindowRect)
{
ValueTree v (OPEN_PREVIEW);
v.setProperty (Ids::name, comp.getName(), nullptr);
v.setProperty (Ids::bounds, rectToVar (mainWindowRect), nullptr);
send (target, v);
}
inline void sendReinstantiate (MessageHandler& target)
{
send (target, ValueTree (RELOAD));
}
inline void sendFileChanges (MessageHandler& target, const Array<CodeChange>& changes, const File& file)
{
ValueTree changesMessage (MessageTypes::LIVE_FILE_CHANGES);
changesMessage.setProperty (Ids::file, file.getFullPathName(), nullptr);
for (const CodeChange& change : changes)
{
ValueTree v (CHANGE);
v.setProperty (Ids::start, change.range.getStart(), nullptr);
v.setProperty (Ids::end, change.range.getEnd(), nullptr);
v.setProperty (Ids::text, change.text, nullptr);
changesMessage.addChild (v, -1, nullptr);
}
send (target, changesMessage);
}
inline Array<CodeChange> getChangeArray (const ValueTree& changes)
{
Array<CodeChange> result;
for (int i = 0; i < changes.getNumChildren(); ++i)
{
const ValueTree& v = changes.getChild (i);
result.add (CodeChange (Range<int> (v[Ids::start], v[Ids::end]), v[Ids::text]));
}
return result;
}
inline void sendFileContentFullUpdate (MessageHandler& target, const File& file, const String& text)
{
ValueTree v (LIVE_FILE_UPDATE);
v.setProperty (Ids::file, file.getFullPathName(), nullptr);
v.setProperty (Ids::text, text, nullptr);
send (target, v);
}
inline void sendHandleFileReset (MessageHandler& target, const File& file)
{
ValueTree v (LIVE_FILE_RESET);
v.setProperty (Ids::file, file.getFullPathName(), nullptr);
send (target, v);
}
inline void sendNewBuild (MessageHandler& target, const ProjectBuildInfo& build)
{
send (target, build.tree);
}
inline void sendCleanAll (MessageHandler& target)
{
send (target, ValueTree (CLEAN_ALL));
}
inline void sendNewDiagnosticList (MessageHandler& target, const ValueTree& list)
{
send (target, list);
}
inline void sendEmptyDiagnosticList (MessageHandler& target)
{
send (target, ValueTree (MessageTypes::DIAGNOSTIC_LIST));
}
inline void sendProcessActivationState (MessageHandler& target, bool isNowActive)
{
ValueTree v (FOREGROUND);
v.setProperty (Ids::parentActive, isNowActive, nullptr);
send (target, v);
}
inline void sendLaunchApp (MessageHandler& target) { send (target, ValueTree (LAUNCH_APP)); }
inline void sendQuit (MessageHandler& target) { send (target, ValueTree (QUIT_SERVER)); }
inline void sendShouldCloseIDE (MessageHandler& target) { send (target, ValueTree (QUIT_IDE)); }
//==============================================================================
// server -> client
inline void sendNewClassList (MessageHandler& target, const ClassDatabase::ClassList& classes)
{
send (target, classes.toValueTree());
}
inline void sendCrash (MessageHandler& target, const String& message)
{
ValueTree v (CRASH);
v.setProperty (Ids::message, message, nullptr);
send (target, v);
}
inline void sendSystemHeadersMissing (MessageHandler& target)
{
send (target, ValueTree (MISSING_SYSTEM_HEADERS));
}
inline void sendBuildFailed (MessageHandler& target)
{
send (target, ValueTree (BUILD_FAILED));
}
inline void sendNewActivityList (MessageHandler& target, const StringArray& list)
{
ValueTree v (ACTIVITY_LIST);
v.setProperty (Ids::list, concatenateListOfStrings (list), nullptr);
send (target, v);
}
inline void sendChangeCode (MessageHandler& target, const String& location, const String& newText)
{
if (location.isNotEmpty())
{
ValueTree v (CHANGE_CODE);
v.setProperty (Ids::position, location, nullptr);
v.setProperty (Ids::text, newText, nullptr);
send (target, v);
}
}
inline void sendHighlightCode (MessageHandler& target, const String& location)
{
if (location.isNotEmpty())
{
ValueTree v (HIGHLIGHT_CODE);
v.setProperty (Ids::position, location, nullptr);
send (target, v);
}
}
inline void sendAppLaunched (MessageHandler& target) { send (target, ValueTree (LAUNCHED)); }
inline void sendAppQuit (MessageHandler& target) { send (target, ValueTree (APPQUIT)); }
inline void sendKeyPress (MessageHandler& target, const String& className, const String& keyDesc)
{
ValueTree v (KEY);
v.setProperty (Ids::class_, className, nullptr);
v.setProperty (Ids::key, keyDesc, nullptr);
send (target, v);
}
//==============================================================================
template <class MessageHandlerType>
static void dispatchToClient (MessageHandlerType& target, const ValueTree& v)
{
if (v.hasType (DIAGNOSTIC_LIST)) target.handleNewDiagnosticList (v);
else if (v.hasType (ACTIVITY_LIST)) target.handleActivityListChanged (separateJoinedStrings (v [Ids::list]));
else if (v.hasType (Ids::CLASSLIST)) target.handleClassListChanged (v);
else if (v.hasType (BUILD_FAILED)) target.handleBuildFailed();
else if (v.hasType (CHANGE_CODE)) target.handleChangeCode (v [Ids::position].toString(), v [Ids::text]);
else if (v.hasType (HIGHLIGHT_CODE)) target.handleHighlightCode (v [Ids::position].toString());
else if (v.hasType (LAUNCHED)) target.handleAppLaunched();
else if (v.hasType (APPQUIT)) target.handleAppQuit();
else if (v.hasType (PING)) target.handlePing();
else if (v.hasType (CRASH)) target.handleCrash (v [Ids::message]);
else if (v.hasType (KEY)) target.handleKeyPress (v[Ids::class_], KeyPress::createFromDescription (v[Ids::key]));
else if (v.hasType (QUIT_IDE)) target.handleCloseIDE();
else if (v.hasType (MISSING_SYSTEM_HEADERS)) target.handleMissingSystemHeaders();
else jassertfalse;
}
template <class MessageHandlerType>
static void dispatchToServer (MessageHandlerType& target, const ValueTree& v)
{
if (v.hasType (CLEAN_ALL)) target.handleCleanAll();
else if (v.hasType (BUILDINFO)) target.handleNewBuildSettings (ProjectBuildInfo (v));
else if (v.hasType (OPEN_PREVIEW)) target.handleOpenPreview (v[Ids::name], varToRect (v[Ids::bounds]));
else if (v.hasType (RELOAD)) target.handleReinstantiatePreviews();
else if (v.hasType (LAUNCH_APP)) target.handleLaunchApp();
else if (v.hasType (LIVE_FILE_CHANGES)) target.handleLiveFileChanges (v[Ids::file].toString(), getChangeArray (v));
else if (v.hasType (LIVE_FILE_UPDATE)) target.handleLiveFileFullUpdate (v[Ids::file].toString(), v[Ids::text]);
else if (v.hasType (LIVE_FILE_RESET)) target.handleResetLiveFileContent (v[Ids::file].toString());
else if (v.hasType (FOREGROUND)) target.handleProcessActivationState (v[Ids::parentActive]);
else if (v.hasType (PING)) target.handlePing();
else jassertfalse;
}
}
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