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// Copyright (c) 2017, Simon Brand
// 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.
"use strict";
var FontScale = require('../fontscale');
var monaco = require('monaco-editor');
var _ = require('underscore');
var $ = require('jquery');
var ga = require('../analytics');
function Ast(hub, container, state) {
this.container = container;
this.eventHub = hub.createEventHub();
this.domRoot = container.getElement();
this.domRoot.html($('#ast').html());
this.astEditor = monaco.editor.create(this.domRoot.find(".monaco-placeholder")[0], {
value: "",
scrollBeyondLastLine: false,
language: 'plaintext',
readOnly: true,
glyphMargin: true,
fontFamily: 'Consolas, "Liberation Mono", Courier, monospace',
quickSuggestions: false,
fixedOverflowWidgets: true,
minimap: {
maxColumn: 80
},
lineNumbersMinChars: 3
});
this._compilerid = state.id;
this._compilerName = state.compilerName;
this._editorid = state.editorid;
this.awaitingInitialResults = false;
this.selection = state.selection;
this.initButtons(state);
this.initCallbacks();
if (state && state.astOutput) {
this.showAstResults(state.astOutput);
}
this.setTitle();
ga.proxy('send', {
hitType: 'event',
eventCategory: 'OpenViewPane',
eventAction: 'Ast'
});
}
Ast.prototype.initButtons = function (state) {
this.fontScale = new FontScale(this.domRoot, state, this.astEditor);
this.topBar = this.domRoot.find(".top-bar");
};
Ast.prototype.initCallbacks = function () {
this.fontScale.on('change', _.bind(this.updateState, this));
this.container.on('destroy', this.close, this);
this.eventHub.on('compileResult', this.onCompileResult, this);
this.eventHub.on('compiler', this.onCompiler, this);
this.eventHub.on('compilerClose', this.onCompilerClose, this);
this.eventHub.on('settingsChange', this.onSettingsChange, this);
this.eventHub.emit('astViewOpened', this._compilerid);
this.eventHub.emit('requestSettings');
this.container.on('resize', this.resize, this);
this.container.on('shown', this.resize, this);
this.cursorSelectionThrottledFunction =
_.throttle(_.bind(this.onDidChangeCursorSelection, this), 500);
this.astEditor.onDidChangeCursorSelection(_.bind(function (e) {
this.cursorSelectionThrottledFunction(e);
}, this));
};
// TODO: de-dupe with compiler etc
Ast.prototype.resize = function () {
var topBarHeight = this.topBar.outerHeight(true);
this.astEditor.layout({
width: this.domRoot.width(),
height: this.domRoot.height() - topBarHeight
});
};
Ast.prototype.onCompileResult = function (id, compiler, result, lang) {
if (this._compilerid !== id) return;
if (result.hasAstOutput) {
this.showAstResults(result.astOutput);
}
else if (compiler.supportsAstView) {
this.showAstResults("<No output>");
}
if (lang && lang.monaco && this.getCurrentEditorLanguage() !== lang.monaco) {
monaco.editor.setModelLanguage(this.astEditor.getModel(), lang.monaco);
}
};
// Monaco language id of the current editor
Ast.prototype.getCurrentEditorLanguage = function () {
return this.astEditor.getModel().getModeId();
};
Ast.prototype.setTitle = function () {
this.container.setTitle(
this._compilerName + " Ast Viewer (Editor #" + this._editorid + ", Compiler #" + this._compilerid + ")"
);
};
Ast.prototype.getDisplayableAst = function (astResult) {
return "**" + astResult.astType + "** - " + astResult.displayString;
};
Ast.prototype.showAstResults = function (results) {
this.astEditor.setValue(results);
if (!this.awaitingInitialResults) {
if (this.selection) {
this.astEditor.setSelection(this.selection);
this.astEditor.revealLinesInCenter(this.selection.startLineNumber,
this.selection.endLineNumber);
}
this.awaitingInitialResults = true;
}
};
Ast.prototype.onCompiler = function (id, compiler, options, editorid) {
if (id === this._compilerid) {
this._compilerName = compiler ? compiler.name : '';
this._editorid = editorid;
this.setTitle();
if (compiler && !compiler.supportsAstView) {
this.astEditor.setValue("<AST output is not supported for this compiler>");
}
}
};
Ast.prototype.onCompilerClose = function (id) {
if (id === this._compilerid) {
// We can't immediately close as an outer loop somewhere in GoldenLayout is iterating over
// the hierarchy. We can't modify while it's being iterated over.
_.defer(function (self) {
self.container.close();
}, this);
}
};
Ast.prototype.updateState = function () {
this.container.setState(this.currentState());
};
Ast.prototype.currentState = function () {
var state = {
id: this._compilerid,
editorid: this._editorid,
selection: this.selection
};
this.fontScale.addState(state);
return state;
};
Ast.prototype.onCompilerClose = function (id) {
if (id === this._compilerid) {
// We can't immediately close as an outer loop somewhere in GoldenLayout is iterating over
// the hierarchy. We can't modify while it's being iterated over.
this.close();
_.defer(function (self) {
self.container.close();
}, this);
}
};
Ast.prototype.onSettingsChange = function (newSettings) {
this.astEditor.updateOptions({
contextmenu: newSettings.useCustomContextMenu,
minimap: {
enabled: newSettings.showMinimap
},
fontFamily: newSettings.editorsFFont,
fontLigatures: newSettings.editorsFLigatures
});
};
Ast.prototype.onDidChangeCursorSelection = function (e) {
if (this.awaitingInitialResults) {
this.selection = e.selection;
this.updateState();
}
};
Ast.prototype.close = function () {
this.eventHub.unsubscribe();
this.eventHub.emit("astViewClosed", this._compilerid);
this.astEditor.dispose();
};
module.exports = {
Ast: Ast
};