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Allow plugins that modify Ace to extend session state #377

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Allow plugins that modify Ace to extend session state #377

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87f56e0
Extensions
dabbler0 Oct 14, 2016
de372dc
Rework extension structure
dabbler0 Oct 21, 2016
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35 changes: 33 additions & 2 deletions plugins/c9.ide.ace/ace.js
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Original file line number Diff line number Diff line change
Expand Up @@ -1623,7 +1623,23 @@ define(function(require, exports, module) {
* @extends Plugin
* @singleton
*/

var extensionID = 0,
serializerExtensions = {},
deserializerExtensions = {};

handle.freezePublicAPI({
/*
* Register a data extension handler, which will add
* extra information to a serialized Ace editor session,
* for plugins that modify the Ace editor.
*/
extendSerializedState: function(serialize, deserialize) {
var id = extensionID++;
serializerExtensions[id] = serialize;
deserializerExtensions[id] = deserialize;
},

/**
* The context menu that is displayed when right clicked in the ace
* editing area.
Expand All @@ -1639,7 +1655,7 @@ define(function(require, exports, module) {
* @readonly
*/
get gutterContextMenu(){ draw(); return mnuGutter },

/**
* Ace Themes
* @property {Object} themese
Expand Down Expand Up @@ -1953,7 +1969,7 @@ define(function(require, exports, module) {
renderer.$updateSizeAsync();
}
}

function getState(doc, state, filter) {
if (filter) return;

Expand Down Expand Up @@ -2001,6 +2017,13 @@ define(function(require, exports, module) {
state: session.bgTokenizer.states[row - 1],
mode: session.$mode.$id
};

state.extensionData = {};

// Any additional state given by ace extensions
for (key in serializerExtensions) {
state.extensionData[key] = serializerExtensions[key](session, doc);
}
}

function setState(doc, state) {
Expand Down Expand Up @@ -2087,6 +2110,13 @@ define(function(require, exports, module) {
ace.on("changeSession", listen);
session.on("unload", clean);
}

// Any additional state given by ace extensions
for (key in deserializerExtensions) {
if ('extensionData' in state && key in state.extensionData) {
deserializerExtensions[key](state.extensionData[key], doc.getSession().session);
}
}
}

function scrollTo(row, column, select, session) {
Expand Down Expand Up @@ -2739,6 +2769,7 @@ define(function(require, exports, module) {
* @param {Number} [state.jump.select.column] The column to select to (0 based)
*/
plugin.freezePublicAPI({

/**
* @ignore
*/
Expand Down