/*---------------------------------------------------------------------------------------------
 *  Copyright (c) Microsoft Corporation. All rights reserved.
 *  Licensed under the MIT License. See License.txt in the project root for license information.
 *--------------------------------------------------------------------------------------------*/
var __extends = (this && this.__extends) || (function () {
    var extendStatics = function (d, b) {
        extendStatics = Object.setPrototypeOf ||
            ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
        return extendStatics(d, b);
    }
    return function (d, b) {
        extendStatics(d, b);
        function __() { this.constructor = d; }
        d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
    };
})();
import './decorations.css';
import { DynamicViewOverlay } from '../../view/dynamicViewOverlay';
import { Range } from '../../../common/core/range';
import { HorizontalRange } from '../../../common/view/renderingContext';
var DecorationsOverlay = /** @class */ (function (_super) {
    __extends(DecorationsOverlay, _super);
    function DecorationsOverlay(context) {
        var _this = _super.call(this) || this;
        _this._context = context;
        _this._lineHeight = _this._context.configuration.editor.lineHeight;
        _this._typicalHalfwidthCharacterWidth = _this._context.configuration.editor.fontInfo.typicalHalfwidthCharacterWidth;
        _this._renderResult = null;
        _this._context.addEventHandler(_this);
        return _this;
    }
    DecorationsOverlay.prototype.dispose = function () {
        this._context.removeEventHandler(this);
        this._renderResult = null;
        _super.prototype.dispose.call(this);
    };
    // --- begin event handlers
    DecorationsOverlay.prototype.onConfigurationChanged = function (e) {
        if (e.lineHeight) {
            this._lineHeight = this._context.configuration.editor.lineHeight;
        }
        if (e.fontInfo) {
            this._typicalHalfwidthCharacterWidth = this._context.configuration.editor.fontInfo.typicalHalfwidthCharacterWidth;
        }
        return true;
    };
    DecorationsOverlay.prototype.onDecorationsChanged = function (e) {
        return true;
    };
    DecorationsOverlay.prototype.onFlushed = function (e) {
        return true;
    };
    DecorationsOverlay.prototype.onLinesChanged = function (e) {
        return true;
    };
    DecorationsOverlay.prototype.onLinesDeleted = function (e) {
        return true;
    };
    DecorationsOverlay.prototype.onLinesInserted = function (e) {
        return true;
    };
    DecorationsOverlay.prototype.onScrollChanged = function (e) {
        return e.scrollTopChanged || e.scrollWidthChanged;
    };
    DecorationsOverlay.prototype.onZonesChanged = function (e) {
        return true;
    };
    // --- end event handlers
    DecorationsOverlay.prototype.prepareRender = function (ctx) {
        var _decorations = ctx.getDecorationsInViewport();
        // Keep only decorations with `className`
        var decorations = [], decorationsLen = 0;
        for (var i = 0, len = _decorations.length; i < len; i++) {
            var d = _decorations[i];
            if (d.options.className) {
                decorations[decorationsLen++] = d;
            }
        }
        // Sort decorations for consistent render output
        decorations = decorations.sort(function (a, b) {
            if (a.options.zIndex < b.options.zIndex) {
                return -1;
            }
            if (a.options.zIndex > b.options.zIndex) {
                return 1;
            }
            var aClassName = a.options.className;
            var bClassName = b.options.className;
            if (aClassName < bClassName) {
                return -1;
            }
            if (aClassName > bClassName) {
                return 1;
            }
            return Range.compareRangesUsingStarts(a.range, b.range);
        });
        var visibleStartLineNumber = ctx.visibleRange.startLineNumber;
        var visibleEndLineNumber = ctx.visibleRange.endLineNumber;
        var output = [];
        for (var lineNumber = visibleStartLineNumber; lineNumber <= visibleEndLineNumber; lineNumber++) {
            var lineIndex = lineNumber - visibleStartLineNumber;
            output[lineIndex] = '';
        }
        // Render first whole line decorations and then regular decorations
        this._renderWholeLineDecorations(ctx, decorations, output);
        this._renderNormalDecorations(ctx, decorations, output);
        this._renderResult = output;
    };
    DecorationsOverlay.prototype._renderWholeLineDecorations = function (ctx, decorations, output) {
        var lineHeight = String(this._lineHeight);
        var visibleStartLineNumber = ctx.visibleRange.startLineNumber;
        var visibleEndLineNumber = ctx.visibleRange.endLineNumber;
        for (var i = 0, lenI = decorations.length; i < lenI; i++) {
            var d = decorations[i];
            if (!d.options.isWholeLine) {
                continue;
            }
            var decorationOutput = ('<div class="cdr '
                + d.options.className
                + '" style="left:0;width:100%;height:'
                + lineHeight
                + 'px;"></div>');
            var startLineNumber = Math.max(d.range.startLineNumber, visibleStartLineNumber);
            var endLineNumber = Math.min(d.range.endLineNumber, visibleEndLineNumber);
            for (var j = startLineNumber; j <= endLineNumber; j++) {
                var lineIndex = j - visibleStartLineNumber;
                output[lineIndex] += decorationOutput;
            }
        }
    };
    DecorationsOverlay.prototype._renderNormalDecorations = function (ctx, decorations, output) {
        var lineHeight = String(this._lineHeight);
        var visibleStartLineNumber = ctx.visibleRange.startLineNumber;
        var prevClassName = null;
        var prevShowIfCollapsed = false;
        var prevRange = null;
        for (var i = 0, lenI = decorations.length; i < lenI; i++) {
            var d = decorations[i];
            if (d.options.isWholeLine) {
                continue;
            }
            var className = d.options.className;
            var showIfCollapsed = Boolean(d.options.showIfCollapsed);
            var range = d.range;
            if (showIfCollapsed && range.endColumn === 1 && range.endLineNumber !== range.startLineNumber) {
                range = new Range(range.startLineNumber, range.startColumn, range.endLineNumber - 1, this._context.model.getLineMaxColumn(range.endLineNumber - 1));
            }
            if (prevClassName === className && prevShowIfCollapsed === showIfCollapsed && Range.areIntersectingOrTouching(prevRange, range)) {
                // merge into previous decoration
                prevRange = Range.plusRange(prevRange, range);
                continue;
            }
            // flush previous decoration
            if (prevClassName !== null) {
                this._renderNormalDecoration(ctx, prevRange, prevClassName, prevShowIfCollapsed, lineHeight, visibleStartLineNumber, output);
            }
            prevClassName = className;
            prevShowIfCollapsed = showIfCollapsed;
            prevRange = range;
        }
        if (prevClassName !== null) {
            this._renderNormalDecoration(ctx, prevRange, prevClassName, prevShowIfCollapsed, lineHeight, visibleStartLineNumber, output);
        }
    };
    DecorationsOverlay.prototype._renderNormalDecoration = function (ctx, range, className, showIfCollapsed, lineHeight, visibleStartLineNumber, output) {
        var linesVisibleRanges = ctx.linesVisibleRangesForRange(range, /*TODO@Alex*/ className === 'findMatch');
        if (!linesVisibleRanges) {
            return;
        }
        for (var j = 0, lenJ = linesVisibleRanges.length; j < lenJ; j++) {
            var lineVisibleRanges = linesVisibleRanges[j];
            var lineIndex = lineVisibleRanges.lineNumber - visibleStartLineNumber;
            if (showIfCollapsed && lineVisibleRanges.ranges.length === 1) {
                var singleVisibleRange = lineVisibleRanges.ranges[0];
                if (singleVisibleRange.width === 0) {
                    // collapsed range case => make the decoration visible by faking its width
                    lineVisibleRanges.ranges[0] = new HorizontalRange(singleVisibleRange.left, this._typicalHalfwidthCharacterWidth);
                }
            }
            for (var k = 0, lenK = lineVisibleRanges.ranges.length; k < lenK; k++) {
                var visibleRange = lineVisibleRanges.ranges[k];
                var decorationOutput = ('<div class="cdr '
                    + className
                    + '" style="left:'
                    + String(visibleRange.left)
                    + 'px;width:'
                    + String(visibleRange.width)
                    + 'px;height:'
                    + lineHeight
                    + 'px;"></div>');
                output[lineIndex] += decorationOutput;
            }
        }
    };
    DecorationsOverlay.prototype.render = function (startLineNumber, lineNumber) {
        if (!this._renderResult) {
            return '';
        }
        var lineIndex = lineNumber - startLineNumber;
        if (lineIndex < 0 || lineIndex >= this._renderResult.length) {
            return '';
        }
        return this._renderResult[lineIndex];
    };
    return DecorationsOverlay;
}(DynamicViewOverlay));
export { DecorationsOverlay };
