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// Copyright (c) 2012-2017, Matt Godbolt
//
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//
// * Redistributions of source code must retain the above copyright notice,
// this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above copyright
// notice, this list of conditions and the following disclaimer in the
// documentation and/or other materials provided with the distribution.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
// POSSIBILITY OF SUCH DAMAGE.
define(function (require) {
"use strict";
var _ = require('underscore');
var options = require('options');
var editor = require('editor');
var compiler = require('compiler');
var output = require('output');
var Components = require('components');
var diff = require('diff');
var optView = require('opt-view');
var astView = require('ast-view');
function Ids() {
this.used = {};
}
Ids.prototype.add = function (id) {
this.used[id] = true;
};
Ids.prototype.remove = function (id) {
delete this.used[id];
};
Ids.prototype.next = function () {
for (var i = 1; i < 100000; ++i) {
if (!this.used[i]) {
this.used[i] = true;
return i;
}
}
throw "Ran out of ids!?";
};
function Hub(layout, defaultSrc) {
this.layout = layout;
this.defaultSrc = defaultSrc;
this.editorIds = new Ids();
this.compilerIds = new Ids();
var self = this;
layout.registerComponent(Components.getEditor().componentName,
function (container, state) {
return self.codeEditorFactory(container, state);
});
layout.registerComponent(Components.getCompiler().componentName,
function (container, state) {
return self.compilerFactory(container, state);
});
layout.registerComponent(Components.getOutput().componentName,
function (container, state) {
return self.outputFactory(container, state);
});
layout.registerComponent(diff.getComponent().componentName,
function (container, state) {
return self.diffFactory(container, state);
});
layout.registerComponent(Components.getOptView().componentName,
function (container, state) {
return self.optViewFactory(container, state);
});
layout.registerComponent(Components.getAstView().componentName,
function (container, state) {
return self.astViewFactory(container, state);
});
layout.eventHub.on('editorOpen', function (id) {
this.editorIds.add(id);
}, this);
layout.eventHub.on('editorClose', function (id) {
this.editorIds.remove(id);
}, this);
layout.eventHub.on('compilerOpen', function (id) {
this.compilerIds.add(id);
}, this);
layout.eventHub.on('compilerClose', function (id) {
this.compilerIds.remove(id);
}, this);
layout.init();
}
Hub.prototype.nextEditorId = function () {
return this.editorIds.next();
};
Hub.prototype.nextCompilerId = function () {
return this.compilerIds.next();
};
Hub.prototype.codeEditorFactory = function (container, state) {
// Ensure editors are closable: some older versions had 'isClosable' false.
// NB there doesn't seem to be a better way to do this than reach into the config and rely on the fact nothing
// has used it yet.
container.parent.config.isClosable = true;
return new editor.Editor(this, state, container, options.language, this.defaultSrc);
};
Hub.prototype.compilerFactory = function (container, state) {
return new compiler.Compiler(this, container, state);
};
Hub.prototype.outputFactory = function (container, state) {
return new output.Output(this, container, state);
};
Hub.prototype.diffFactory = function (container, state) {
return new diff.Diff(this, container, state);
};
Hub.prototype.optViewFactory = function (container, state) {
return new optView.Opt(this, container, state);
};
Hub.prototype.astViewFactory = function (container, state) {
return new astView.Ast(this, container, state);
};
function WrappedEventHub(eventHub) {
this.eventHub = eventHub;
this.subscriptions = [];
}
WrappedEventHub.prototype.emit = function () {
this.eventHub.emit.apply(this.eventHub, arguments);
};
WrappedEventHub.prototype.on = function (event, callback, context) {
this.eventHub.on(event, callback, context);
this.subscriptions.push({evt: event, fn: callback, ctx: context});
};
WrappedEventHub.prototype.unsubscribe = function () {
_.each(this.subscriptions, _.bind(function (obj) {
this.eventHub.off(obj.evt, obj.fn, obj.ctx);
}, this));
};
Hub.prototype.createEventHub = function () {
return new WrappedEventHub(this.layout.eventHub);
};
Hub.prototype.findParentRowOrColumn = function (elem) {
while (elem) {
if (elem.isRow || elem.isColumn) return elem;
elem = elem.parent;
}
return elem;
};
Hub.prototype.addAtRoot = function (newElem) {
var rootFirstItem = this.layout.root.contentItems[0];
if (rootFirstItem) {
if (rootFirstItem.isRow || rootFirstItem.isColumn) {
rootFirstItem.addChild(newElem);
} else {
var newRow = this.layout.createContentItem({type: 'row'}, this.layout.root);
this.layout.root.replaceChild(rootFirstItem, newRow);
newRow.addChild(rootFirstItem);
newRow.addChild(newElem);
}
} else {
this.layout.root.addChild({
type: 'row',
content: [newElem]
});
}
};
return Hub;
});