mirror of
https://github.com/mindoc-org/mindoc.git
synced 2025-10-25 19:17:05 +08:00
1686 lines
58 KiB
Go
1686 lines
58 KiB
Go
"use strict";
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(function( window, document, jQuery, CodeMirror ){
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var Mgly = {};
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Mgly.Timer = function(){
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var self = this;
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self.start = function() { self.t0 = new Date().getTime(); };
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self.stop = function() {
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var t1 = new Date().getTime();
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var d = t1 - self.t0;
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self.t0 = t1;
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return d;
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};
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self.start();
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};
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Mgly.ChangeExpression = new RegExp(/(^(?![><\-])*\d+(?:,\d+)?)([acd])(\d+(?:,\d+)?)/);
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Mgly.DiffParser = function(diff) {
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var changes = [];
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var change_id = 0;
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// parse diff
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var diff_lines = diff.split(/\n/);
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for (var i = 0; i < diff_lines.length; ++i) {
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if (diff_lines[i].length == 0) continue;
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var change = {};
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var test = Mgly.ChangeExpression.exec(diff_lines[i]);
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if (test == null) continue;
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// lines are zero-based
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var fr = test[1].split(',');
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change['lhs-line-from'] = fr[0] - 1;
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if (fr.length == 1) change['lhs-line-to'] = fr[0] - 1;
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else change['lhs-line-to'] = fr[1] - 1;
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var to = test[3].split(',');
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change['rhs-line-from'] = to[0] - 1;
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if (to.length == 1) change['rhs-line-to'] = to[0] - 1;
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else change['rhs-line-to'] = to[1] - 1;
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change['op'] = test[2];
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changes[change_id++] = change;
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}
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return changes;
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};
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Mgly.sizeOf = function(obj) {
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var size = 0, key;
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for (key in obj) {
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if (obj.hasOwnProperty(key)) size++;
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}
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return size;
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};
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Mgly.LCS = function(x, y) {
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this.x = x.replace(/[ ]{1}/g, '\n');
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this.y = y.replace(/[ ]{1}/g, '\n');
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};
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jQuery.extend(Mgly.LCS.prototype, {
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clear: function() { this.ready = 0; },
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diff: function(added, removed) {
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var d = new Mgly.diff(this.x, this.y, {ignorews: false});
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var changes = Mgly.DiffParser(d.normal_form());
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var li = 0, lj = 0;
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for (var i = 0; i < changes.length; ++i) {
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var change = changes[i];
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if (change.op != 'a') {
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// find the starting index of the line
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li = d.getLines('lhs').slice(0, change['lhs-line-from']).join(' ').length;
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// get the index of the the span of the change
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lj = change['lhs-line-to'] + 1;
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// get the changed text
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var lchange = d.getLines('lhs').slice(change['lhs-line-from'], lj).join(' ');
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if (change.op == 'd') lchange += ' ';// include the leading space
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else if (li > 0 && change.op == 'c') li += 1; // ignore leading space if not first word
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// output the changed index and text
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removed(li, li + lchange.length);
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}
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if (change.op != 'd') {
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// find the starting index of the line
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li = d.getLines('rhs').slice(0, change['rhs-line-from']).join(' ').length;
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// get the index of the the span of the change
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lj = change['rhs-line-to'] + 1;
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// get the changed text
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var rchange = d.getLines('rhs').slice(change['rhs-line-from'], lj).join(' ');
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if (change.op == 'a') rchange += ' ';// include the leading space
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else if (li > 0 && change.op == 'c') li += 1; // ignore leading space if not first word
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// output the changed index and text
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added(li, li + rchange.length);
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}
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}
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}
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});
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Mgly.CodeifyText = function(settings) {
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this._max_code = 0;
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this._diff_codes = {};
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this.ctxs = {};
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this.options = {ignorews: false};
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jQuery.extend(this, settings);
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this.lhs = settings.lhs.split('\n');
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this.rhs = settings.rhs.split('\n');
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};
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jQuery.extend(Mgly.CodeifyText.prototype, {
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getCodes: function(side) {
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if (!this.ctxs.hasOwnProperty(side)) {
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var ctx = this._diff_ctx(this[side]);
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this.ctxs[side] = ctx;
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ctx.codes.length = Object.keys(ctx.codes).length;
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}
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return this.ctxs[side].codes;
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},
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getLines: function(side) {
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return this.ctxs[side].lines;
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},
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_diff_ctx: function(lines) {
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var ctx = {i: 0, codes: {}, lines: lines};
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this._codeify(lines, ctx);
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return ctx;
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},
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_codeify: function(lines, ctx) {
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var code = this._max_code;
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for (var i = 0; i < lines.length; ++i) {
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var line = lines[i];
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if (this.options.ignorews) {
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line = line.replace(/\s+/g, '');
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}
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if (this.options.ignorecase) {
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line = line.toLowerCase();
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}
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var aCode = this._diff_codes[line];
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if (aCode != undefined) {
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ctx.codes[i] = aCode;
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}
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else {
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this._max_code++;
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this._diff_codes[line] = this._max_code;
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ctx.codes[i] = this._max_code;
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}
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}
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}
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});
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Mgly.diff = function(lhs, rhs, options) {
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var opts = jQuery.extend({ignorews: false}, options);
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this.codeify = new Mgly.CodeifyText({
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lhs: lhs,
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rhs: rhs,
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options: opts
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});
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var lhs_ctx = {
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codes: this.codeify.getCodes('lhs'),
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modified: {}
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};
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var rhs_ctx = {
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codes: this.codeify.getCodes('rhs'),
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modified: {}
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};
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var max = (lhs_ctx.codes.length + rhs_ctx.codes.length + 1);
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var vector_d = [];
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var vector_u = [];
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this._lcs(lhs_ctx, 0, lhs_ctx.codes.length, rhs_ctx, 0, rhs_ctx.codes.length, vector_u, vector_d);
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this._optimize(lhs_ctx);
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this._optimize(rhs_ctx);
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this.items = this._create_diffs(lhs_ctx, rhs_ctx);
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};
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jQuery.extend(Mgly.diff.prototype, {
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changes: function() { return this.items; },
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getLines: function(side) {
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return this.codeify.getLines(side);
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},
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normal_form: function() {
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var nf = '';
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for (var index = 0; index < this.items.length; ++index) {
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var item = this.items[index];
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var lhs_str = '';
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var rhs_str = '';
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var change = 'c';
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if (item.lhs_deleted_count == 0 && item.rhs_inserted_count > 0) change = 'a';
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else if (item.lhs_deleted_count > 0 && item.rhs_inserted_count == 0) change = 'd';
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if (item.lhs_deleted_count == 1) lhs_str = item.lhs_start + 1;
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else if (item.lhs_deleted_count == 0) lhs_str = item.lhs_start;
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else lhs_str = (item.lhs_start + 1) + ',' + (item.lhs_start + item.lhs_deleted_count);
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if (item.rhs_inserted_count == 1) rhs_str = item.rhs_start + 1;
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else if (item.rhs_inserted_count == 0) rhs_str = item.rhs_start;
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else rhs_str = (item.rhs_start + 1) + ',' + (item.rhs_start + item.rhs_inserted_count);
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nf += lhs_str + change + rhs_str + '\n';
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var lhs_lines = this.getLines('lhs');
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var rhs_lines = this.getLines('rhs');
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if (rhs_lines && lhs_lines) {
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var i;
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// if rhs/lhs lines have been retained, output contextual diff
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for (i = item.lhs_start; i < item.lhs_start + item.lhs_deleted_count; ++i) {
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nf += '< ' + lhs_lines[i] + '\n';
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}
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if (item.rhs_inserted_count && item.lhs_deleted_count) nf += '---\n';
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for (i = item.rhs_start; i < item.rhs_start + item.rhs_inserted_count; ++i) {
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nf += '> ' + rhs_lines[i] + '\n';
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}
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}
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}
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return nf;
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},
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_lcs: function(lhs_ctx, lhs_lower, lhs_upper, rhs_ctx, rhs_lower, rhs_upper, vector_u, vector_d) {
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while ( (lhs_lower < lhs_upper) && (rhs_lower < rhs_upper) && (lhs_ctx.codes[lhs_lower] == rhs_ctx.codes[rhs_lower]) ) {
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++lhs_lower;
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++rhs_lower;
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}
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while ( (lhs_lower < lhs_upper) && (rhs_lower < rhs_upper) && (lhs_ctx.codes[lhs_upper - 1] == rhs_ctx.codes[rhs_upper - 1]) ) {
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--lhs_upper;
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--rhs_upper;
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}
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if (lhs_lower == lhs_upper) {
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while (rhs_lower < rhs_upper) {
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rhs_ctx.modified[ rhs_lower++ ] = true;
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}
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}
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else if (rhs_lower == rhs_upper) {
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while (lhs_lower < lhs_upper) {
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lhs_ctx.modified[ lhs_lower++ ] = true;
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}
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}
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else {
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var sms = this._sms(lhs_ctx, lhs_lower, lhs_upper, rhs_ctx, rhs_lower, rhs_upper, vector_u, vector_d);
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this._lcs(lhs_ctx, lhs_lower, sms.x, rhs_ctx, rhs_lower, sms.y, vector_u, vector_d);
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this._lcs(lhs_ctx, sms.x, lhs_upper, rhs_ctx, sms.y, rhs_upper, vector_u, vector_d);
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}
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},
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_sms: function(lhs_ctx, lhs_lower, lhs_upper, rhs_ctx, rhs_lower, rhs_upper, vector_u, vector_d) {
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var max = lhs_ctx.codes.length + rhs_ctx.codes.length + 1;
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var kdown = lhs_lower - rhs_lower;
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var kup = lhs_upper - rhs_upper;
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var delta = (lhs_upper - lhs_lower) - (rhs_upper - rhs_lower);
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var odd = (delta & 1) != 0;
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var offset_down = max - kdown;
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var offset_up = max - kup;
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var maxd = ((lhs_upper - lhs_lower + rhs_upper - rhs_lower) / 2) + 1;
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vector_d[ offset_down + kdown + 1 ] = lhs_lower;
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vector_u[ offset_up + kup - 1 ] = lhs_upper;
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var ret = {x:0,y:0}, d, k, x, y;
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for (d = 0; d <= maxd; ++d) {
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for (k = kdown - d; k <= kdown + d; k += 2) {
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if (k == kdown - d) {
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x = vector_d[ offset_down + k + 1 ];//down
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}
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else {
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x = vector_d[ offset_down + k - 1 ] + 1;//right
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if ((k < (kdown + d)) && (vector_d[ offset_down + k + 1 ] >= x)) {
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x = vector_d[ offset_down + k + 1 ];//down
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}
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}
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y = x - k;
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// find the end of the furthest reaching forward D-path in diagonal k.
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while ((x < lhs_upper) && (y < rhs_upper) && (lhs_ctx.codes[x] == rhs_ctx.codes[y])) {
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x++; y++;
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}
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vector_d[ offset_down + k ] = x;
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// overlap ?
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if (odd && (kup - d < k) && (k < kup + d)) {
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if (vector_u[offset_up + k] <= vector_d[offset_down + k]) {
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ret.x = vector_d[offset_down + k];
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ret.y = vector_d[offset_down + k] - k;
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return (ret);
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}
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}
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}
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// Extend the reverse path.
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for (k = kup - d; k <= kup + d; k += 2) {
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// find the only or better starting point
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if (k == kup + d) {
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x = vector_u[offset_up + k - 1]; // up
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} else {
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x = vector_u[offset_up + k + 1] - 1; // left
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if ((k > kup - d) && (vector_u[offset_up + k - 1] < x))
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x = vector_u[offset_up + k - 1]; // up
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}
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y = x - k;
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while ((x > lhs_lower) && (y > rhs_lower) && (lhs_ctx.codes[x - 1] == rhs_ctx.codes[y - 1])) {
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// diagonal
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x--;
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y--;
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}
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vector_u[offset_up + k] = x;
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// overlap ?
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if (!odd && (kdown - d <= k) && (k <= kdown + d)) {
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if (vector_u[offset_up + k] <= vector_d[offset_down + k]) {
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ret.x = vector_d[offset_down + k];
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ret.y = vector_d[offset_down + k] - k;
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return (ret);
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}
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}
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}
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}
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throw "the algorithm should never come here.";
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},
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_optimize: function(ctx) {
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var start = 0, end = 0;
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while (start < ctx.codes.length) {
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while ((start < ctx.codes.length) && (ctx.modified[start] == undefined || ctx.modified[start] == false)) {
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start++;
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}
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end = start;
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while ((end < ctx.codes.length) && (ctx.modified[end] == true)) {
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end++;
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}
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if ((end < ctx.codes.length) && (ctx.codes[start] == ctx.codes[end])) {
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ctx.modified[start] = false;
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ctx.modified[end] = true;
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}
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else {
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start = end;
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}
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}
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},
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_create_diffs: function(lhs_ctx, rhs_ctx) {
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var items = [];
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var lhs_start = 0, rhs_start = 0;
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var lhs_line = 0, rhs_line = 0;
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while (lhs_line < lhs_ctx.codes.length || rhs_line < rhs_ctx.codes.length) {
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if ((lhs_line < lhs_ctx.codes.length) && (!lhs_ctx.modified[lhs_line])
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&& (rhs_line < rhs_ctx.codes.length) && (!rhs_ctx.modified[rhs_line])) {
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// equal lines
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lhs_line++;
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rhs_line++;
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}
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else {
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// maybe deleted and/or inserted lines
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lhs_start = lhs_line;
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rhs_start = rhs_line;
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while (lhs_line < lhs_ctx.codes.length && (rhs_line >= rhs_ctx.codes.length || lhs_ctx.modified[lhs_line]))
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lhs_line++;
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while (rhs_line < rhs_ctx.codes.length && (lhs_line >= lhs_ctx.codes.length || rhs_ctx.modified[rhs_line]))
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rhs_line++;
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if ((lhs_start < lhs_line) || (rhs_start < rhs_line)) {
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// store a new difference-item
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items.push({
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lhs_start: lhs_start,
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rhs_start: rhs_start,
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lhs_deleted_count: lhs_line - lhs_start,
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rhs_inserted_count: rhs_line - rhs_start
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});
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}
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}
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}
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return items;
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}
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});
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Mgly.mergely = function(el, options) {
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if (el) {
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this.init(el, options);
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}
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};
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jQuery.extend(Mgly.mergely.prototype, {
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name: 'mergely',
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//http://jupiterjs.com/news/writing-the-perfect-jquery-plugin
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init: function(el, options) {
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this.diffView = new Mgly.CodeMirrorDiffView(el, options);
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this.bind(el);
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},
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bind: function(el) {
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this.diffView.bind(el);
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}
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});
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Mgly.CodeMirrorDiffView = function(el, options) {
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CodeMirror.defineExtension('centerOnCursor', function() {
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var coords = this.cursorCoords(null, 'local');
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this.scrollTo(null,
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(coords.y + coords.yBot) / 2 - (this.getScrollerElement().clientHeight / 2));
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});
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this.init(el, options);
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};
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jQuery.extend(Mgly.CodeMirrorDiffView.prototype, {
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init: function(el, options) {
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this.settings = {
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autoupdate: true,
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autoresize: true,
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rhs_margin: 'right',
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wrap_lines: false,
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line_numbers: true,
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lcs: true,
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sidebar: true,
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viewport: false,
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ignorews: false,
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ignorecase: false,
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fadein: 'fast',
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editor_width: '650px',
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editor_height: '400px',
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resize_timeout: 500,
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change_timeout: 150,
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fgcolor: {a:'#4ba3fa',c:'#a3a3a3',d:'#ff7f7f', // color for differences (soft color)
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ca:'#4b73ff',cc:'#434343',cd:'#ff4f4f'}, // color for currently active difference (bright color)
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bgcolor: '#eee',
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vpcolor: 'rgba(0, 0, 200, 0.5)',
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lhs: function(setValue) { },
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rhs: function(setValue) { },
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loaded: function() { },
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_auto_width: function(w) { return w; },
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resize: function(init) {
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var scrollbar = init ? 16 : 0;
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var w = jQuery(el).parent().width() + scrollbar, h = 0;
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if (this.width == 'auto') {
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w = this._auto_width(w);
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}
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else {
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w = this.width;
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this.editor_width = w;
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}
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if (this.height == 'auto') {
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//h = this._auto_height(h);
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h = jQuery(el).parent().height();
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}
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else {
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h = this.height;
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this.editor_height = h;
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}
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var content_width = w / 2.0 - 2 * 8 - 8;
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var content_height = h;
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var self = jQuery(el);
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self.find('.mergely-column').css({ width: content_width + 'px' });
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self.find('.mergely-column, .mergely-canvas, .mergely-margin, .mergely-column textarea, .CodeMirror-scroll, .cm-s-default').css({ height: content_height + 'px' });
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self.find('.mergely-canvas').css({ height: content_height + 'px' });
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self.find('.mergely-column textarea').css({ width: content_width + 'px' });
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self.css({ width: w, height: h, clear: 'both' });
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if (self.css('display') == 'none') {
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if (this.fadein != false) self.fadeIn(this.fadein);
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else self.show();
|
|
if (this.loaded) this.loaded();
|
|
}
|
|
if (this.resized) this.resized();
|
|
},
|
|
_debug: '', //scroll,draw,calc,diff,markup,change
|
|
resized: function() { }
|
|
};
|
|
var cmsettings = {
|
|
mode: 'text/plain',
|
|
readOnly: false,
|
|
lineWrapping: this.settings.wrap_lines,
|
|
lineNumbers: this.settings.line_numbers,
|
|
gutters: ['merge', 'CodeMirror-linenumbers']
|
|
};
|
|
this.lhs_cmsettings = {};
|
|
this.rhs_cmsettings = {};
|
|
|
|
// save this element for faster queries
|
|
this.element = jQuery(el);
|
|
|
|
// save options if there are any
|
|
if (options && options.cmsettings) jQuery.extend(this.lhs_cmsettings, cmsettings, options.cmsettings, options.lhs_cmsettings);
|
|
if (options && options.cmsettings) jQuery.extend(this.rhs_cmsettings, cmsettings, options.cmsettings, options.rhs_cmsettings);
|
|
//if (options) jQuery.extend(this.settings, options);
|
|
|
|
// bind if the element is destroyed
|
|
this.element.bind('destroyed', jQuery.proxy(this.teardown, this));
|
|
|
|
// save this instance in jQuery data, binding this view to the node
|
|
jQuery.data(el, 'mergely', this);
|
|
|
|
this._setOptions(options);
|
|
},
|
|
unbind: function() {
|
|
if (this.changed_timeout != null) clearTimeout(this.changed_timeout);
|
|
this.editor[this.id + '-lhs'].toTextArea();
|
|
this.editor[this.id + '-rhs'].toTextArea();
|
|
jQuery(window).off('.mergely');
|
|
},
|
|
destroy: function() {
|
|
this.element.unbind('destroyed', this.teardown);
|
|
this.teardown();
|
|
},
|
|
teardown: function() {
|
|
this.unbind();
|
|
},
|
|
lhs: function(text) {
|
|
this.editor[this.id + '-lhs'].setValue(text);
|
|
},
|
|
rhs: function(text) {
|
|
this.editor[this.id + '-rhs'].setValue(text);
|
|
},
|
|
update: function() {
|
|
this._changing(this.id + '-lhs', this.id + '-rhs');
|
|
},
|
|
unmarkup: function() {
|
|
this._clear();
|
|
},
|
|
scrollToDiff: function(direction) {
|
|
if (!this.changes.length) return;
|
|
if (direction == 'next') {
|
|
if (this._current_diff == this.changes.length -1) {
|
|
this._current_diff = 0;
|
|
} else {
|
|
this._current_diff = Math.min(++this._current_diff, this.changes.length - 1);
|
|
}
|
|
}
|
|
else if (direction == 'prev') {
|
|
if (this._current_diff == 0) {
|
|
this._current_diff = this.changes.length - 1;
|
|
} else {
|
|
this._current_diff = Math.max(--this._current_diff, 0);
|
|
}
|
|
}
|
|
this._scroll_to_change(this.changes[this._current_diff]);
|
|
this._changed(this.id + '-lhs', this.id + '-rhs');
|
|
},
|
|
mergeCurrentChange: function(side) {
|
|
if (!this.changes.length) return;
|
|
if (side == 'lhs' && !this.lhs_cmsettings.readOnly) {
|
|
this._merge_change(this.changes[this._current_diff], 'rhs', 'lhs');
|
|
}
|
|
else if (side == 'rhs' && !this.rhs_cmsettings.readOnly) {
|
|
this._merge_change(this.changes[this._current_diff], 'lhs', 'rhs');
|
|
}
|
|
},
|
|
scrollTo: function(side, num) {
|
|
var le = this.editor[this.id + '-lhs'];
|
|
var re = this.editor[this.id + '-rhs'];
|
|
if (side == 'lhs') {
|
|
le.setCursor(num);
|
|
le.centerOnCursor();
|
|
}
|
|
else {
|
|
re.setCursor(num);
|
|
re.centerOnCursor();
|
|
}
|
|
},
|
|
_setOptions: function(opts) {
|
|
jQuery.extend(this.settings, opts);
|
|
if (this.settings.hasOwnProperty('rhs_margin')) {
|
|
// dynamically swap the margin
|
|
if (this.settings.rhs_margin == 'left') {
|
|
this.element.find('.mergely-margin:last-child').insertAfter(
|
|
this.element.find('.mergely-canvas'));
|
|
}
|
|
else {
|
|
var target = this.element.find('.mergely-margin').last();
|
|
target.appendTo(target.parent());
|
|
}
|
|
}
|
|
if (this.settings.hasOwnProperty('sidebar')) {
|
|
// dynamically enable sidebars
|
|
if (this.settings.sidebar) {
|
|
this.element.find('.mergely-margin').css({display: 'block'});
|
|
}
|
|
else {
|
|
this.element.find('.mergely-margin').css({display: 'none'});
|
|
}
|
|
}
|
|
var le, re;
|
|
if (this.settings.hasOwnProperty('wrap_lines')) {
|
|
if (this.editor) {
|
|
le = this.editor[this.id + '-lhs'];
|
|
re = this.editor[this.id + '-rhs'];
|
|
le.setOption('lineWrapping', this.settings.wrap_lines);
|
|
re.setOption('lineWrapping', this.settings.wrap_lines);
|
|
}
|
|
}
|
|
if (this.settings.hasOwnProperty('line_numbers')) {
|
|
if (this.editor) {
|
|
le = this.editor[this.id + '-lhs'];
|
|
re = this.editor[this.id + '-rhs'];
|
|
le.setOption('lineNumbers', this.settings.line_numbers);
|
|
re.setOption('lineNumbers', this.settings.line_numbers);
|
|
}
|
|
}
|
|
},
|
|
options: function(opts) {
|
|
if (opts) {
|
|
this._setOptions(opts);
|
|
if (this.settings.autoresize) this.resize();
|
|
if (this.settings.autoupdate) this.update();
|
|
}
|
|
else {
|
|
return this.settings;
|
|
}
|
|
},
|
|
swap: function() {
|
|
if (this.lhs_cmsettings.readOnly || this.rhs_cmsettings.readOnly) return;
|
|
var le = this.editor[this.id + '-lhs'];
|
|
var re = this.editor[this.id + '-rhs'];
|
|
var tmp = re.getValue();
|
|
re.setValue(le.getValue());
|
|
le.setValue(tmp);
|
|
},
|
|
merge: function(side) {
|
|
var le = this.editor[this.id + '-lhs'];
|
|
var re = this.editor[this.id + '-rhs'];
|
|
if (side == 'lhs' && !this.lhs_cmsettings.readOnly) le.setValue(re.getValue());
|
|
else if (!this.rhs_cmsettings.readOnly) re.setValue(le.getValue());
|
|
},
|
|
get: function(side) {
|
|
var ed = this.editor[this.id + '-' + side];
|
|
var t = ed.getValue();
|
|
if (t == undefined) return '';
|
|
return t;
|
|
},
|
|
clear: function(side) {
|
|
if (side == 'lhs' && this.lhs_cmsettings.readOnly) return;
|
|
if (side == 'rhs' && this.rhs_cmsettings.readOnly) return;
|
|
var ed = this.editor[this.id + '-' + side];
|
|
ed.setValue('');
|
|
},
|
|
cm: function(side) {
|
|
return this.editor[this.id + '-' + side];
|
|
},
|
|
search: function(side, query, direction) {
|
|
var le = this.editor[this.id + '-lhs'];
|
|
var re = this.editor[this.id + '-rhs'];
|
|
var editor;
|
|
if (side == 'lhs') editor = le;
|
|
else editor = re;
|
|
direction = (direction == 'prev') ? 'findPrevious' : 'findNext';
|
|
if ((editor.getSelection().length == 0) || (this.prev_query[side] != query)) {
|
|
this.cursor[this.id] = editor.getSearchCursor(query, { line: 0, ch: 0 }, false);
|
|
this.prev_query[side] = query;
|
|
}
|
|
var cursor = this.cursor[this.id];
|
|
|
|
if (cursor[direction]()) {
|
|
editor.setSelection(cursor.from(), cursor.to());
|
|
}
|
|
else {
|
|
cursor = editor.getSearchCursor(query, { line: 0, ch: 0 }, false);
|
|
}
|
|
},
|
|
resize: function() {
|
|
this.settings.resize();
|
|
this._changing(this.id + '-lhs', this.id + '-rhs');
|
|
this._set_top_offset(this.id + '-lhs');
|
|
},
|
|
diff: function() {
|
|
var lhs = this.editor[this.id + '-lhs'].getValue();
|
|
var rhs = this.editor[this.id + '-rhs'].getValue();
|
|
var d = new Mgly.diff(lhs, rhs, this.settings);
|
|
return d.normal_form();
|
|
},
|
|
bind: function(el) {
|
|
this.element.hide();//hide
|
|
this.id = jQuery(el).attr('id');
|
|
this.changed_timeout = null;
|
|
this.chfns = {};
|
|
this.chfns[this.id + '-lhs'] = [];
|
|
this.chfns[this.id + '-rhs'] = [];
|
|
this.prev_query = [];
|
|
this.cursor = [];
|
|
this._skipscroll = {};
|
|
this.change_exp = new RegExp(/(\d+(?:,\d+)?)([acd])(\d+(?:,\d+)?)/);
|
|
var merge_lhs_button;
|
|
var merge_rhs_button;
|
|
if (jQuery.button != undefined) {
|
|
//jquery ui
|
|
merge_lhs_button = '<button title="Merge left"></button>';
|
|
merge_rhs_button = '<button title="Merge right"></button>';
|
|
}
|
|
else {
|
|
// homebrew
|
|
var style = 'opacity:0.4;width:10px;height:15px;background-color:#888;cursor:pointer;text-align:center;color:#eee;border:1px solid: #222;margin-right:5px;margin-top: -2px;';
|
|
merge_lhs_button = '<div style="' + style + '" title="Merge left"><</div>';
|
|
merge_rhs_button = '<div style="' + style + '" title="Merge right">></div>';
|
|
}
|
|
this.merge_rhs_button = jQuery(merge_rhs_button);
|
|
this.merge_lhs_button = jQuery(merge_lhs_button);
|
|
|
|
// create the textarea and canvas elements
|
|
var height = this.settings.editor_height;
|
|
var width = this.settings.editor_width;
|
|
this.element.append(jQuery('<div class="mergely-margin" style="height: ' + height + '"><canvas id="' + this.id + '-lhs-margin" width="8px" height="' + height + '"></canvas></div>'));
|
|
this.element.append(jQuery('<div style="position:relative;width:' + width + '; height:' + height + '" id="' + this.id + '-editor-lhs" class="mergely-column"><textarea style="" id="' + this.id + '-lhs"></textarea></div>'));
|
|
this.element.append(jQuery('<div class="mergely-canvas" style="height: ' + height + '"><canvas id="' + this.id + '-lhs-' + this.id + '-rhs-canvas" style="width:28px" width="28px" height="' + height + '"></canvas></div>'));
|
|
var rmargin = jQuery('<div class="mergely-margin" style="height: ' + height + '"><canvas id="' + this.id + '-rhs-margin" width="8px" height="' + height + '"></canvas></div>');
|
|
if (!this.settings.sidebar) {
|
|
this.element.find('.mergely-margin').css({display: 'none'});
|
|
}
|
|
if (this.settings.rhs_margin == 'left') {
|
|
this.element.append(rmargin);
|
|
}
|
|
this.element.append(jQuery('<div style="width:' + width + '; height:' + height + '" id="' + this.id + '-editor-rhs" class="mergely-column"><textarea style="" id="' + this.id + '-rhs"></textarea></div>'));
|
|
if (this.settings.rhs_margin != 'left') {
|
|
this.element.append(rmargin);
|
|
}
|
|
|
|
// get current diff border color
|
|
var color = jQuery('<div style="display:none" class="mergely current start" />').appendTo('body').css('border-top-color');
|
|
this.current_diff_color = color;
|
|
|
|
// codemirror
|
|
var cmstyle = '#' + this.id + ' .CodeMirror-gutter-text { padding: 5px 0 0 0; }' +
|
|
'#' + this.id + ' .CodeMirror-lines pre, ' + '#' + this.id + ' .CodeMirror-gutter-text pre { line-height: 18px; }' +
|
|
'.CodeMirror-linewidget { overflow: hidden; };';
|
|
if (this.settings.autoresize) {
|
|
cmstyle += this.id + ' .CodeMirror-scroll { height: 100%; overflow: auto; }';
|
|
}
|
|
// adjust the margin line height
|
|
cmstyle += '\n.CodeMirror { line-height: 18px; }';
|
|
jQuery('<style type="text/css">' + cmstyle + '</style>').appendTo('head');
|
|
|
|
//bind
|
|
var rhstx = this.element.find('#' + this.id + '-rhs').get(0);
|
|
if (!rhstx) {
|
|
console.error('rhs textarea not defined - Mergely not initialized properly');
|
|
return;
|
|
}
|
|
var lhstx = this.element.find('#' + this.id + '-lhs').get(0);
|
|
if (!rhstx) {
|
|
console.error('lhs textarea not defined - Mergely not initialized properly');
|
|
return;
|
|
}
|
|
var self = this;
|
|
this.editor = [];
|
|
this.editor[this.id + '-lhs'] = CodeMirror.fromTextArea(lhstx, this.lhs_cmsettings);
|
|
this.editor[this.id + '-rhs'] = CodeMirror.fromTextArea(rhstx, this.rhs_cmsettings);
|
|
this.editor[this.id + '-lhs'].on('change', function(){ if (self.settings.autoupdate) self._changing(self.id + '-lhs', self.id + '-rhs'); });
|
|
this.editor[this.id + '-lhs'].on('scroll', function(){ self._scrolling(self.id + '-lhs'); });
|
|
this.editor[this.id + '-rhs'].on('change', function(){ if (self.settings.autoupdate) self._changing(self.id + '-lhs', self.id + '-rhs'); });
|
|
this.editor[this.id + '-rhs'].on('scroll', function(){ self._scrolling(self.id + '-rhs'); });
|
|
// resize
|
|
if (this.settings.autoresize) {
|
|
var sz_timeout1 = null;
|
|
var sz = function(init) {
|
|
//self.em_height = null; //recalculate
|
|
if (self.settings.resize) self.settings.resize(init);
|
|
self.editor[self.id + '-lhs'].refresh();
|
|
self.editor[self.id + '-rhs'].refresh();
|
|
if (self.settings.autoupdate) {
|
|
self._changing(self.id + '-lhs', self.id + '-rhs');
|
|
}
|
|
};
|
|
jQuery(window).on('resize.mergely',
|
|
function () {
|
|
if (sz_timeout1) clearTimeout(sz_timeout1);
|
|
sz_timeout1 = setTimeout(sz, self.settings.resize_timeout);
|
|
}
|
|
);
|
|
sz(true);
|
|
}
|
|
|
|
// scrollToDiff() from gutter
|
|
function gutterClicked(side, line, ev) {
|
|
// The "Merge left/right" buttons are also located in the gutter.
|
|
// Don't interfere with them:
|
|
if (ev.target && (jQuery(ev.target).closest('.merge-button').length > 0)) {
|
|
return;
|
|
}
|
|
|
|
// See if the user clicked the line number of a difference:
|
|
var i, change;
|
|
for (i = 0; i < this.changes.length; i++) {
|
|
change = this.changes[i];
|
|
if (line >= change[side+'-line-from'] && line <= change[side+'-line-to']) {
|
|
this._current_diff = i;
|
|
// I really don't like this here - something about gutterClick does not
|
|
// like mutating editor here. Need to trigger the scroll to diff from
|
|
// a timeout.
|
|
setTimeout(function() { this.scrollToDiff(); }.bind(this), 10);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
this.editor[this.id + '-lhs'].on('gutterClick', function(cm, n, gutterClass, ev) {
|
|
gutterClicked.call(this, 'lhs', n, ev);
|
|
}.bind(this));
|
|
|
|
this.editor[this.id + '-rhs'].on('gutterClick', function(cm, n, gutterClass, ev) {
|
|
gutterClicked.call(this, 'rhs', n, ev);
|
|
}.bind(this));
|
|
|
|
//bind
|
|
var setv;
|
|
if (this.settings.lhs) {
|
|
setv = this.editor[this.id + '-lhs'].getDoc().setValue;
|
|
this.settings.lhs(setv.bind(this.editor[this.id + '-lhs'].getDoc()));
|
|
}
|
|
if (this.settings.rhs) {
|
|
setv = this.editor[this.id + '-rhs'].getDoc().setValue;
|
|
this.settings.rhs(setv.bind(this.editor[this.id + '-rhs'].getDoc()));
|
|
}
|
|
},
|
|
|
|
_scroll_to_change : function(change) {
|
|
if (!change) return;
|
|
var self = this;
|
|
var led = self.editor[self.id+'-lhs'];
|
|
var red = self.editor[self.id+'-rhs'];
|
|
// set cursors
|
|
led.setCursor(Math.max(change["lhs-line-from"],0), 0); // use led.getCursor().ch ?
|
|
red.setCursor(Math.max(change["rhs-line-from"],0), 0);
|
|
led.scrollIntoView({line: change["lhs-line-to"]});
|
|
},
|
|
|
|
_scrolling: function(editor_name) {
|
|
if (this._skipscroll[editor_name] === true) {
|
|
// scrolling one side causes the other to event - ignore it
|
|
this._skipscroll[editor_name] = false;
|
|
return;
|
|
}
|
|
var scroller = jQuery(this.editor[editor_name].getScrollerElement());
|
|
if (this.midway == undefined) {
|
|
this.midway = (scroller.height() / 2.0 + scroller.offset().top).toFixed(2);
|
|
}
|
|
// balance-line
|
|
var midline = this.editor[editor_name].coordsChar({left:0, top:this.midway});
|
|
var top_to = scroller.scrollTop();
|
|
var left_to = scroller.scrollLeft();
|
|
|
|
this.trace('scroll', 'side', editor_name);
|
|
this.trace('scroll', 'midway', this.midway);
|
|
this.trace('scroll', 'midline', midline);
|
|
this.trace('scroll', 'top_to', top_to);
|
|
this.trace('scroll', 'left_to', left_to);
|
|
|
|
var editor_name1 = this.id + '-lhs';
|
|
var editor_name2 = this.id + '-rhs';
|
|
|
|
for (var name in this.editor) {
|
|
if (!this.editor.hasOwnProperty(name)) continue;
|
|
if (editor_name == name) continue; //same editor
|
|
var this_side = editor_name.replace(this.id + '-', '');
|
|
var other_side = name.replace(this.id + '-', '');
|
|
var top_adjust = 0;
|
|
|
|
// find the last change that is less than or within the midway point
|
|
// do not move the rhs until the lhs end point is >= the rhs end point.
|
|
var last_change = null;
|
|
var force_scroll = false;
|
|
for (var i = 0; i < this.changes.length; ++i) {
|
|
var change = this.changes[i];
|
|
if ((midline.line >= change[this_side+'-line-from'])) {
|
|
last_change = change;
|
|
if (midline.line >= last_change[this_side+'-line-to']) {
|
|
if (!change.hasOwnProperty(this_side+'-y-start') ||
|
|
!change.hasOwnProperty(this_side+'-y-end') ||
|
|
!change.hasOwnProperty(other_side+'-y-start') ||
|
|
!change.hasOwnProperty(other_side+'-y-end')){
|
|
// change outside of viewport
|
|
force_scroll = true;
|
|
}
|
|
else {
|
|
top_adjust +=
|
|
(change[this_side+'-y-end'] - change[this_side+'-y-start']) -
|
|
(change[other_side+'-y-end'] - change[other_side+'-y-start']);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
var vp = this.editor[name].getViewport();
|
|
var scroll = true;
|
|
if (last_change) {
|
|
this.trace('scroll', 'last change before midline', last_change);
|
|
if (midline.line >= vp.from && midline <= vp.to) {
|
|
scroll = false;
|
|
}
|
|
}
|
|
this.trace('scroll', 'scroll', scroll);
|
|
if (scroll || force_scroll) {
|
|
// scroll the other side
|
|
this.trace('scroll', 'scrolling other side', top_to - top_adjust);
|
|
this._skipscroll[name] = true;//disable next event
|
|
this.editor[name].scrollTo(left_to, top_to - top_adjust);
|
|
}
|
|
else this.trace('scroll', 'not scrolling other side');
|
|
|
|
if (this.settings.autoupdate) {
|
|
var timer = new Mgly.Timer();
|
|
this._calculate_offsets(editor_name1, editor_name2, this.changes);
|
|
this.trace('change', 'offsets time', timer.stop());
|
|
this._markup_changes(editor_name1, editor_name2, this.changes);
|
|
this.trace('change', 'markup time', timer.stop());
|
|
this._draw_diff(editor_name1, editor_name2, this.changes);
|
|
this.trace('change', 'draw time', timer.stop());
|
|
}
|
|
this.trace('scroll', 'scrolled');
|
|
}
|
|
},
|
|
_changing: function(editor_name1, editor_name2) {
|
|
this.trace('change', 'changing-timeout', this.changed_timeout);
|
|
var self = this;
|
|
if (this.changed_timeout != null) clearTimeout(this.changed_timeout);
|
|
this.changed_timeout = setTimeout(function(){
|
|
var timer = new Mgly.Timer();
|
|
self._changed(editor_name1, editor_name2);
|
|
self.trace('change', 'total time', timer.stop());
|
|
}, this.settings.change_timeout);
|
|
},
|
|
_changed: function(editor_name1, editor_name2) {
|
|
this._clear();
|
|
this._diff(editor_name1, editor_name2);
|
|
},
|
|
_clear: function() {
|
|
var self = this, name, editor, fns, timer, i, change, l;
|
|
|
|
var clear_changes = function() {
|
|
timer = new Mgly.Timer();
|
|
for (i = 0, l = editor.lineCount(); i < l; ++i) {
|
|
editor.removeLineClass(i, 'background');
|
|
}
|
|
for (i = 0; i < fns.length; ++i) {
|
|
//var edid = editor.getDoc().id;
|
|
change = fns[i];
|
|
//if (change.doc.id != edid) continue;
|
|
if (change.lines.length) {
|
|
self.trace('change', 'clear text', change.lines[0].text);
|
|
}
|
|
change.clear();
|
|
}
|
|
editor.clearGutter('merge');
|
|
self.trace('change', 'clear time', timer.stop());
|
|
};
|
|
|
|
for (name in this.editor) {
|
|
if (!this.editor.hasOwnProperty(name)) continue;
|
|
editor = this.editor[name];
|
|
fns = self.chfns[name];
|
|
// clear editor changes
|
|
editor.operation(clear_changes);
|
|
}
|
|
self.chfns[name] = [];
|
|
|
|
var ex = this._draw_info(this.id + '-lhs', this.id + '-rhs');
|
|
var ctx_lhs = ex.clhs.get(0).getContext('2d');
|
|
var ctx_rhs = ex.crhs.get(0).getContext('2d');
|
|
var ctx = ex.dcanvas.getContext('2d');
|
|
|
|
ctx_lhs.beginPath();
|
|
ctx_lhs.fillStyle = this.settings.bgcolor;
|
|
ctx_lhs.strokeStyle = '#888';
|
|
ctx_lhs.fillRect(0, 0, 6.5, ex.visible_page_height);
|
|
ctx_lhs.strokeRect(0, 0, 6.5, ex.visible_page_height);
|
|
|
|
ctx_rhs.beginPath();
|
|
ctx_rhs.fillStyle = this.settings.bgcolor;
|
|
ctx_rhs.strokeStyle = '#888';
|
|
ctx_rhs.fillRect(0, 0, 6.5, ex.visible_page_height);
|
|
ctx_rhs.strokeRect(0, 0, 6.5, ex.visible_page_height);
|
|
|
|
ctx.beginPath();
|
|
ctx.fillStyle = '#fff';
|
|
ctx.fillRect(0, 0, this.draw_mid_width, ex.visible_page_height);
|
|
},
|
|
_diff: function(editor_name1, editor_name2) {
|
|
var lhs = this.editor[editor_name1].getValue();
|
|
var rhs = this.editor[editor_name2].getValue();
|
|
var timer = new Mgly.Timer();
|
|
var d = new Mgly.diff(lhs, rhs, this.settings);
|
|
this.trace('change', 'diff time', timer.stop());
|
|
this.changes = Mgly.DiffParser(d.normal_form());
|
|
this.trace('change', 'parse time', timer.stop());
|
|
if (this._current_diff === undefined && this.changes.length) {
|
|
// go to first difference on start-up
|
|
this._current_diff = 0;
|
|
this._scroll_to_change(this.changes[0]);
|
|
}
|
|
this.trace('change', 'scroll_to_change time', timer.stop());
|
|
this._calculate_offsets(editor_name1, editor_name2, this.changes);
|
|
this.trace('change', 'offsets time', timer.stop());
|
|
this._markup_changes(editor_name1, editor_name2, this.changes);
|
|
this.trace('change', 'markup time', timer.stop());
|
|
this._draw_diff(editor_name1, editor_name2, this.changes);
|
|
this.trace('change', 'draw time', timer.stop());
|
|
},
|
|
_parse_diff: function (editor_name1, editor_name2, diff) {
|
|
this.trace('diff', 'diff results:\n', diff);
|
|
var changes = [];
|
|
var change_id = 0;
|
|
// parse diff
|
|
var diff_lines = diff.split(/\n/);
|
|
for (var i = 0; i < diff_lines.length; ++i) {
|
|
if (diff_lines[i].length == 0) continue;
|
|
var change = {};
|
|
var test = this.change_exp.exec(diff_lines[i]);
|
|
if (test == null) continue;
|
|
// lines are zero-based
|
|
var fr = test[1].split(',');
|
|
change['lhs-line-from'] = fr[0] - 1;
|
|
if (fr.length == 1) change['lhs-line-to'] = fr[0] - 1;
|
|
else change['lhs-line-to'] = fr[1] - 1;
|
|
var to = test[3].split(',');
|
|
change['rhs-line-from'] = to[0] - 1;
|
|
if (to.length == 1) change['rhs-line-to'] = to[0] - 1;
|
|
else change['rhs-line-to'] = to[1] - 1;
|
|
// TODO: optimize for changes that are adds/removes
|
|
if (change['lhs-line-from'] < 0) change['lhs-line-from'] = 0;
|
|
if (change['lhs-line-to'] < 0) change['lhs-line-to'] = 0;
|
|
if (change['rhs-line-from'] < 0) change['rhs-line-from'] = 0;
|
|
if (change['rhs-line-to'] < 0) change['rhs-line-to'] = 0;
|
|
change['op'] = test[2];
|
|
changes[change_id++] = change;
|
|
this.trace('diff', 'change', change);
|
|
}
|
|
return changes;
|
|
},
|
|
_get_viewport: function(editor_name1, editor_name2) {
|
|
var lhsvp = this.editor[editor_name1].getViewport();
|
|
var rhsvp = this.editor[editor_name2].getViewport();
|
|
return {from: Math.min(lhsvp.from, rhsvp.from), to: Math.max(lhsvp.to, rhsvp.to)};
|
|
},
|
|
_is_change_in_view: function(vp, change) {
|
|
if (!this.settings.viewport) return true;
|
|
if ((change['lhs-line-from'] < vp.from && change['lhs-line-to'] < vp.to) ||
|
|
(change['lhs-line-from'] > vp.from && change['lhs-line-to'] > vp.to) ||
|
|
(change['rhs-line-from'] < vp.from && change['rhs-line-to'] < vp.to) ||
|
|
(change['rhs-line-from'] > vp.from && change['rhs-line-to'] > vp.to)) {
|
|
// if the change is outside the viewport, skip
|
|
return false;
|
|
}
|
|
return true;
|
|
},
|
|
_set_top_offset: function (editor_name1) {
|
|
// save the current scroll position of the editor
|
|
var saveY = this.editor[editor_name1].getScrollInfo().top;
|
|
// temporarily scroll to top
|
|
this.editor[editor_name1].scrollTo(null, 0);
|
|
|
|
// this is the distance from the top of the screen to the top of the
|
|
// content of the first codemirror editor
|
|
var topnode = this.element.find('.CodeMirror-measure').first();
|
|
var top_offset = topnode.offset().top - 4;
|
|
if(!top_offset) return false;
|
|
|
|
// restore editor's scroll position
|
|
this.editor[editor_name1].scrollTo(null, saveY);
|
|
|
|
this.draw_top_offset = 0.5 - top_offset;
|
|
return true;
|
|
},
|
|
_calculate_offsets: function (editor_name1, editor_name2, changes) {
|
|
if (this.em_height == null) {
|
|
if(!this._set_top_offset(editor_name1)) return; //try again
|
|
this.em_height = this.editor[editor_name1].defaultTextHeight();
|
|
if (!this.em_height) {
|
|
console.warn('Failed to calculate offsets, using 18 by default');
|
|
this.em_height = 18;
|
|
}
|
|
this.draw_lhs_min = 0.5;
|
|
var c = jQuery('#' + editor_name1 + '-' + editor_name2 + '-canvas');
|
|
if (!c.length) {
|
|
console.error('failed to find canvas', '#' + editor_name1 + '-' + editor_name2 + '-canvas');
|
|
}
|
|
if (!c.width()) {
|
|
console.error('canvas width is 0');
|
|
return;
|
|
}
|
|
this.draw_mid_width = jQuery('#' + editor_name1 + '-' + editor_name2 + '-canvas').width();
|
|
this.draw_rhs_max = this.draw_mid_width - 0.5; //24.5;
|
|
this.draw_lhs_width = 5;
|
|
this.draw_rhs_width = 5;
|
|
this.trace('calc', 'change offsets calculated', {top_offset: this.draw_top_offset, lhs_min: this.draw_lhs_min, rhs_max: this.draw_rhs_max, lhs_width: this.draw_lhs_width, rhs_width: this.draw_rhs_width});
|
|
}
|
|
var lhschc = this.editor[editor_name1].charCoords({line: 0});
|
|
var rhschc = this.editor[editor_name2].charCoords({line: 0});
|
|
var vp = this._get_viewport(editor_name1, editor_name2);
|
|
|
|
for (var i = 0; i < changes.length; ++i) {
|
|
var change = changes[i];
|
|
|
|
if (!this.settings.sidebar && !this._is_change_in_view(vp, change)) {
|
|
// if the change is outside the viewport, skip
|
|
delete change['lhs-y-start'];
|
|
delete change['lhs-y-end'];
|
|
delete change['rhs-y-start'];
|
|
delete change['rhs-y-end'];
|
|
continue;
|
|
}
|
|
var llf = change['lhs-line-from'] >= 0 ? change['lhs-line-from'] : 0;
|
|
var llt = change['lhs-line-to'] >= 0 ? change['lhs-line-to'] : 0;
|
|
var rlf = change['rhs-line-from'] >= 0 ? change['rhs-line-from'] : 0;
|
|
var rlt = change['rhs-line-to'] >= 0 ? change['rhs-line-to'] : 0;
|
|
|
|
var ls, le, rs, re, tls, tle, lhseh, lhssh, rhssh, rhseh;
|
|
if (this.editor[editor_name1].getOption('lineWrapping') || this.editor[editor_name2].getOption('lineWrapping')) {
|
|
// If using line-wrapping, we must get the height of the line
|
|
tls = this.editor[editor_name1].cursorCoords({line: llf, ch: 0}, 'page');
|
|
lhssh = this.editor[editor_name1].getLineHandle(llf);
|
|
ls = { top: tls.top, bottom: tls.top + lhssh.height };
|
|
|
|
tle = this.editor[editor_name1].cursorCoords({line: llt, ch: 0}, 'page');
|
|
lhseh = this.editor[editor_name1].getLineHandle(llt);
|
|
le = { top: tle.top, bottom: tle.top + lhseh.height };
|
|
|
|
tls = this.editor[editor_name2].cursorCoords({line: rlf, ch: 0}, 'page');
|
|
rhssh = this.editor[editor_name2].getLineHandle(rlf);
|
|
rs = { top: tls.top, bottom: tls.top + rhssh.height };
|
|
|
|
tle = this.editor[editor_name2].cursorCoords({line: rlt, ch: 0}, 'page');
|
|
rhseh = this.editor[editor_name2].getLineHandle(rlt);
|
|
re = { top: tle.top, bottom: tle.top + rhseh.height };
|
|
}
|
|
else {
|
|
// If not using line-wrapping, we can calculate the line position
|
|
ls = {
|
|
top: lhschc.top + llf * this.em_height,
|
|
bottom: lhschc.bottom + llf * this.em_height + 2
|
|
};
|
|
le = {
|
|
top: lhschc.top + llt * this.em_height,
|
|
bottom: lhschc.bottom + llt * this.em_height + 2
|
|
};
|
|
rs = {
|
|
top: rhschc.top + rlf * this.em_height,
|
|
bottom: rhschc.bottom + rlf * this.em_height + 2
|
|
};
|
|
re = {
|
|
top: rhschc.top + rlt * this.em_height,
|
|
bottom: rhschc.bottom + rlt * this.em_height + 2
|
|
};
|
|
}
|
|
|
|
if (change['op'] == 'a') {
|
|
// adds (right), normally start from the end of the lhs,
|
|
// except for the case when the start of the rhs is 0
|
|
if (rlf > 0) {
|
|
ls.top = ls.bottom;
|
|
ls.bottom += this.em_height;
|
|
le = ls;
|
|
}
|
|
}
|
|
else if (change['op'] == 'd') {
|
|
// deletes (left) normally finish from the end of the rhs,
|
|
// except for the case when the start of the lhs is 0
|
|
if (llf > 0) {
|
|
rs.top = rs.bottom;
|
|
rs.bottom += this.em_height;
|
|
re = rs;
|
|
}
|
|
}
|
|
change['lhs-y-start'] = this.draw_top_offset + ls.top;
|
|
if (change['op'] == 'c' || change['op'] == 'd') {
|
|
change['lhs-y-end'] = this.draw_top_offset + le.bottom;
|
|
}
|
|
else {
|
|
change['lhs-y-end'] = this.draw_top_offset + le.top;
|
|
}
|
|
change['rhs-y-start'] = this.draw_top_offset + rs.top;
|
|
if (change['op'] == 'c' || change['op'] == 'a') {
|
|
change['rhs-y-end'] = this.draw_top_offset + re.bottom;
|
|
}
|
|
else {
|
|
change['rhs-y-end'] = this.draw_top_offset + re.top;
|
|
}
|
|
this.trace('calc', 'change calculated', i, change);
|
|
}
|
|
return changes;
|
|
},
|
|
_markup_changes: function (editor_name1, editor_name2, changes) {
|
|
this.element.find('.merge-button').remove(); //clear
|
|
|
|
var self = this;
|
|
var led = this.editor[editor_name1];
|
|
var red = this.editor[editor_name2];
|
|
var current_diff = this._current_diff;
|
|
|
|
var timer = new Mgly.Timer();
|
|
led.operation(function() {
|
|
for (var i = 0; i < changes.length; ++i) {
|
|
var change = changes[i];
|
|
var llf = change['lhs-line-from'] >= 0 ? change['lhs-line-from'] : 0;
|
|
var llt = change['lhs-line-to'] >= 0 ? change['lhs-line-to'] : 0;
|
|
var rlf = change['rhs-line-from'] >= 0 ? change['rhs-line-from'] : 0;
|
|
var rlt = change['rhs-line-to'] >= 0 ? change['rhs-line-to'] : 0;
|
|
|
|
var clazz = ['mergely', 'lhs', change['op'], 'cid-' + i];
|
|
led.addLineClass(llf, 'background', 'start');
|
|
led.addLineClass(llt, 'background', 'end');
|
|
|
|
if (current_diff == i) {
|
|
if (llf != llt) {
|
|
led.addLineClass(llf, 'background', 'current');
|
|
}
|
|
led.addLineClass(llt, 'background', 'current');
|
|
}
|
|
if (llf == 0 && llt == 0 && rlf == 0) {
|
|
led.addLineClass(llf, 'background', clazz.join(' '));
|
|
led.addLineClass(llf, 'background', 'first');
|
|
}
|
|
else {
|
|
// apply change for each line in-between the changed lines
|
|
for (var j = llf; j <= llt; ++j) {
|
|
led.addLineClass(j, 'background', clazz.join(' '));
|
|
led.addLineClass(j, 'background', clazz.join(' '));
|
|
}
|
|
}
|
|
|
|
if (!red.getOption('readOnly')) {
|
|
// add widgets to lhs, if rhs is not read only
|
|
var rhs_button = self.merge_rhs_button.clone();
|
|
if (rhs_button.button) {
|
|
//jquery-ui support
|
|
rhs_button.button({icons: {primary: 'ui-icon-triangle-1-e'}, text: false});
|
|
}
|
|
rhs_button.addClass('merge-button');
|
|
rhs_button.attr('id', 'merge-rhs-' + i);
|
|
led.setGutterMarker(llf, 'merge', rhs_button.get(0));
|
|
}
|
|
}
|
|
});
|
|
|
|
var vp = this._get_viewport(editor_name1, editor_name2);
|
|
|
|
this.trace('change', 'markup lhs-editor time', timer.stop());
|
|
red.operation(function() {
|
|
for (var i = 0; i < changes.length; ++i) {
|
|
var change = changes[i];
|
|
var llf = change['lhs-line-from'] >= 0 ? change['lhs-line-from'] : 0;
|
|
var llt = change['lhs-line-to'] >= 0 ? change['lhs-line-to'] : 0;
|
|
var rlf = change['rhs-line-from'] >= 0 ? change['rhs-line-from'] : 0;
|
|
var rlt = change['rhs-line-to'] >= 0 ? change['rhs-line-to'] : 0;
|
|
|
|
if (!self._is_change_in_view(vp, change)) {
|
|
// if the change is outside the viewport, skip
|
|
continue;
|
|
}
|
|
|
|
var clazz = ['mergely', 'rhs', change['op'], 'cid-' + i];
|
|
red.addLineClass(rlf, 'background', 'start');
|
|
red.addLineClass(rlt, 'background', 'end');
|
|
|
|
if (current_diff == i) {
|
|
if (rlf != rlt) {
|
|
red.addLineClass(rlf, 'background', 'current');
|
|
}
|
|
red.addLineClass(rlt, 'background', 'current');
|
|
}
|
|
if (rlf == 0 && rlt == 0 && llf == 0) {
|
|
red.addLineClass(rlf, 'background', clazz.join(' '));
|
|
red.addLineClass(rlf, 'background', 'first');
|
|
}
|
|
else {
|
|
// apply change for each line in-between the changed lines
|
|
for (var j = rlf; j <= rlt; ++j) {
|
|
red.addLineClass(j, 'background', clazz.join(' '));
|
|
red.addLineClass(j, 'background', clazz.join(' '));
|
|
}
|
|
}
|
|
|
|
if (!led.getOption('readOnly')) {
|
|
// add widgets to rhs, if lhs is not read only
|
|
var lhs_button = self.merge_lhs_button.clone();
|
|
if (lhs_button.button) {
|
|
//jquery-ui support
|
|
lhs_button.button({icons: {primary: 'ui-icon-triangle-1-w'}, text: false});
|
|
}
|
|
lhs_button.addClass('merge-button');
|
|
lhs_button.attr('id', 'merge-lhs-' + i);
|
|
red.setGutterMarker(rlf, 'merge', lhs_button.get(0));
|
|
}
|
|
}
|
|
});
|
|
this.trace('change', 'markup rhs-editor time', timer.stop());
|
|
|
|
// mark text deleted, LCS changes
|
|
var marktext = [], i, j, k, p;
|
|
for (i = 0; this.settings.lcs && i < changes.length; ++i) {
|
|
var change = changes[i];
|
|
var llf = change['lhs-line-from'] >= 0 ? change['lhs-line-from'] : 0;
|
|
var llt = change['lhs-line-to'] >= 0 ? change['lhs-line-to'] : 0;
|
|
var rlf = change['rhs-line-from'] >= 0 ? change['rhs-line-from'] : 0;
|
|
var rlt = change['rhs-line-to'] >= 0 ? change['rhs-line-to'] : 0;
|
|
|
|
if (!this._is_change_in_view(vp, change)) {
|
|
// if the change is outside the viewport, skip
|
|
continue;
|
|
}
|
|
if (change['op'] == 'd') {
|
|
// apply delete to cross-out (left-hand side only)
|
|
var from = llf;
|
|
var to = llt;
|
|
var to_ln = led.lineInfo(to);
|
|
if (to_ln) {
|
|
marktext.push([led, {line:from, ch:0}, {line:to, ch:to_ln.text.length}, {className: 'mergely ch d lhs'}]);
|
|
}
|
|
}
|
|
else if (change['op'] == 'c') {
|
|
// apply LCS changes to each line
|
|
for (j = llf, k = rlf, p = 0;
|
|
((j >= 0) && (j <= llt)) || ((k >= 0) && (k <= rlt));
|
|
++j, ++k) {
|
|
var lhs_line, rhs_line;
|
|
if (k + p > rlt) {
|
|
// lhs continues past rhs, mark lhs as deleted
|
|
lhs_line = led.getLine( j );
|
|
marktext.push([led, {line:j, ch:0}, {line:j, ch:lhs_line.length}, {className: 'mergely ch d lhs'}]);
|
|
continue;
|
|
}
|
|
if (j + p > llt) {
|
|
// rhs continues past lhs, mark rhs as added
|
|
rhs_line = red.getLine( k );
|
|
marktext.push([red, {line:k, ch:0}, {line:k, ch:rhs_line.length}, {className: 'mergely ch a rhs'}]);
|
|
continue;
|
|
}
|
|
lhs_line = led.getLine( j );
|
|
rhs_line = red.getLine( k );
|
|
var lcs = new Mgly.LCS(lhs_line, rhs_line);
|
|
lcs.diff(
|
|
function added (from, to) {
|
|
marktext.push([red, {line:k, ch:from}, {line:k, ch:to}, {className: 'mergely ch a rhs'}]);
|
|
},
|
|
function removed (from, to) {
|
|
marktext.push([led, {line:j, ch:from}, {line:j, ch:to}, {className: 'mergely ch d lhs'}]);
|
|
}
|
|
);
|
|
}
|
|
}
|
|
}
|
|
this.trace('change', 'LCS marktext time', timer.stop());
|
|
|
|
// mark changes outside closure
|
|
led.operation(function() {
|
|
// apply lhs markup
|
|
for (var i = 0; i < marktext.length; ++i) {
|
|
var m = marktext[i];
|
|
if (m[0].doc.id != led.getDoc().id) continue;
|
|
self.chfns[self.id + '-lhs'].push(m[0].markText(m[1], m[2], m[3]));
|
|
}
|
|
});
|
|
red.operation(function() {
|
|
// apply lhs markup
|
|
for (var i = 0; i < marktext.length; ++i) {
|
|
var m = marktext[i];
|
|
if (m[0].doc.id != red.getDoc().id) continue;
|
|
self.chfns[self.id + '-rhs'].push(m[0].markText(m[1], m[2], m[3]));
|
|
}
|
|
});
|
|
|
|
this.trace('change', 'LCS markup time', timer.stop());
|
|
|
|
// merge buttons
|
|
var ed = {lhs:led, rhs:red};
|
|
this.element.find('.merge-button').on('click', function(ev){
|
|
// side of mouseenter
|
|
var side = 'rhs';
|
|
var oside = 'lhs';
|
|
var parent = jQuery(this).parents('#' + self.id + '-editor-lhs');
|
|
if (parent.length) {
|
|
side = 'lhs';
|
|
oside = 'rhs';
|
|
}
|
|
var pos = ed[side].coordsChar({left:ev.pageX, top:ev.pageY});
|
|
|
|
// get the change id
|
|
var cid = null;
|
|
var info = ed[side].lineInfo(pos.line);
|
|
jQuery.each(info.bgClass.split(' '), function(i, clazz) {
|
|
if (clazz.indexOf('cid-') == 0) {
|
|
cid = parseInt(clazz.split('-')[1], 10);
|
|
return false;
|
|
}
|
|
});
|
|
var change = self.changes[cid];
|
|
self._merge_change(change, side, oside);
|
|
return false;
|
|
});
|
|
|
|
// gutter markup
|
|
var lhsLineNumbers = jQuery('#mergely-lhs ~ .CodeMirror').find('.CodeMirror-linenumber');
|
|
var rhsLineNumbers = jQuery('#mergely-rhs ~ .CodeMirror').find('.CodeMirror-linenumber');
|
|
rhsLineNumbers.removeClass('mergely current');
|
|
lhsLineNumbers.removeClass('mergely current');
|
|
for (var i = 0; i < changes.length; ++i) {
|
|
if (current_diff == i && change.op !== 'd') {
|
|
var change = changes[i];
|
|
var j, jf = change['rhs-line-from'], jt = change['rhs-line-to'] + 1;
|
|
for (j = jf; j < jt; j++) {
|
|
var n = (j + 1).toString();
|
|
rhsLineNumbers
|
|
.filter(function(i, node) { return jQuery(node).text() === n; })
|
|
.addClass('mergely current');
|
|
}
|
|
}
|
|
if (current_diff == i && change.op !== 'a') {
|
|
var change = changes[i];
|
|
jf = change['lhs-line-from'], jt = change['lhs-line-to'] + 1;
|
|
for (j = jf; j < jt; j++) {
|
|
var n = (j + 1).toString();
|
|
lhsLineNumbers.filter(function(i, node) { return jQuery(node).text() === n; })
|
|
.addClass('mergely current');
|
|
}
|
|
}
|
|
}
|
|
|
|
this.trace('change', 'markup buttons time', timer.stop());
|
|
},
|
|
_merge_change : function(change, side, oside) {
|
|
if (!change) return;
|
|
var led = this.editor[this.id+'-lhs'];
|
|
var red = this.editor[this.id+'-rhs'];
|
|
var ed = {lhs:led, rhs:red};
|
|
var i, from, to;
|
|
|
|
var text = ed[side].getRange(
|
|
CodeMirror.Pos(change[side + '-line-from'], 0),
|
|
CodeMirror.Pos(change[side + '-line-to'] + 1, 0));
|
|
|
|
if (change['op'] == 'c') {
|
|
ed[oside].replaceRange(text,
|
|
CodeMirror.Pos(change[oside + '-line-from'], 0),
|
|
CodeMirror.Pos(change[oside + '-line-to'] + 1, 0));
|
|
}
|
|
else if (side == 'rhs') {
|
|
if (change['op'] == 'a') {
|
|
ed[oside].replaceRange(text,
|
|
CodeMirror.Pos(change[oside + '-line-from'] + 1, 0),
|
|
CodeMirror.Pos(change[oside + '-line-to'] + 1, 0));
|
|
}
|
|
else {// 'd'
|
|
from = parseInt(change[oside + '-line-from'], 10);
|
|
to = parseInt(change[oside + '-line-to'], 10);
|
|
for (i = to; i >= from; --i) {
|
|
ed[oside].setCursor({line: i, ch: -1});
|
|
ed[oside].execCommand('deleteLine');
|
|
}
|
|
}
|
|
}
|
|
else if (side == 'lhs') {
|
|
if (change['op'] == 'a') {
|
|
from = parseInt(change[oside + '-line-from'], 10);
|
|
to = parseInt(change[oside + '-line-to'], 10);
|
|
for (i = to; i >= from; --i) {
|
|
//ed[oside].removeLine(i);
|
|
ed[oside].setCursor({line: i, ch: -1});
|
|
ed[oside].execCommand('deleteLine');
|
|
}
|
|
}
|
|
else {// 'd'
|
|
ed[oside].replaceRange( text,
|
|
CodeMirror.Pos(change[oside + '-line-from'] + 1, 0));
|
|
}
|
|
}
|
|
//reset
|
|
ed['lhs'].setValue(ed['lhs'].getValue());
|
|
ed['rhs'].setValue(ed['rhs'].getValue());
|
|
|
|
this._scroll_to_change(change);
|
|
},
|
|
_draw_info: function(editor_name1, editor_name2) {
|
|
var visible_page_height = jQuery(this.editor[editor_name1].getScrollerElement()).height();
|
|
var gutter_height = jQuery(this.editor[editor_name1].getScrollerElement()).children(':first-child').height();
|
|
var dcanvas = document.getElementById(editor_name1 + '-' + editor_name2 + '-canvas');
|
|
if (dcanvas == undefined) throw 'Failed to find: ' + editor_name1 + '-' + editor_name2 + '-canvas';
|
|
var clhs = this.element.find('#' + this.id + '-lhs-margin');
|
|
var crhs = this.element.find('#' + this.id + '-rhs-margin');
|
|
return {
|
|
visible_page_height: visible_page_height,
|
|
gutter_height: gutter_height,
|
|
visible_page_ratio: (visible_page_height / gutter_height),
|
|
margin_ratio: (visible_page_height / gutter_height),
|
|
lhs_scroller: jQuery(this.editor[editor_name1].getScrollerElement()),
|
|
rhs_scroller: jQuery(this.editor[editor_name2].getScrollerElement()),
|
|
lhs_lines: this.editor[editor_name1].lineCount(),
|
|
rhs_lines: this.editor[editor_name2].lineCount(),
|
|
dcanvas: dcanvas,
|
|
clhs: clhs,
|
|
crhs: crhs,
|
|
lhs_xyoffset: jQuery(clhs).offset(),
|
|
rhs_xyoffset: jQuery(crhs).offset()
|
|
};
|
|
},
|
|
_draw_diff: function(editor_name1, editor_name2, changes) {
|
|
var ex = this._draw_info(editor_name1, editor_name2);
|
|
var mcanvas_lhs = ex.clhs.get(0);
|
|
var mcanvas_rhs = ex.crhs.get(0);
|
|
var ctx = ex.dcanvas.getContext('2d');
|
|
var ctx_lhs = mcanvas_lhs.getContext('2d');
|
|
var ctx_rhs = mcanvas_rhs.getContext('2d');
|
|
|
|
this.trace('draw', 'visible_page_height', ex.visible_page_height);
|
|
this.trace('draw', 'gutter_height', ex.gutter_height);
|
|
this.trace('draw', 'visible_page_ratio', ex.visible_page_ratio);
|
|
this.trace('draw', 'lhs-scroller-top', ex.lhs_scroller.scrollTop());
|
|
this.trace('draw', 'rhs-scroller-top', ex.rhs_scroller.scrollTop());
|
|
|
|
jQuery.each(this.element.find('canvas'), function () {
|
|
jQuery(this).get(0).height = ex.visible_page_height;
|
|
});
|
|
|
|
ex.clhs.unbind('click');
|
|
ex.crhs.unbind('click');
|
|
|
|
ctx_lhs.beginPath();
|
|
ctx_lhs.fillStyle = this.settings.bgcolor;
|
|
ctx_lhs.strokeStyle = '#888';
|
|
ctx_lhs.fillRect(0, 0, 6.5, ex.visible_page_height);
|
|
ctx_lhs.strokeRect(0, 0, 6.5, ex.visible_page_height);
|
|
|
|
ctx_rhs.beginPath();
|
|
ctx_rhs.fillStyle = this.settings.bgcolor;
|
|
ctx_rhs.strokeStyle = '#888';
|
|
ctx_rhs.fillRect(0, 0, 6.5, ex.visible_page_height);
|
|
ctx_rhs.strokeRect(0, 0, 6.5, ex.visible_page_height);
|
|
|
|
var vp = this._get_viewport(editor_name1, editor_name2);
|
|
for (var i = 0; i < changes.length; ++i) {
|
|
var change = changes[i];
|
|
var fill = this.settings.fgcolor[change['op']];
|
|
if (this._current_diff === i) {
|
|
fill = this.current_diff_color;
|
|
}
|
|
|
|
this.trace('draw', change);
|
|
// margin indicators
|
|
var lhs_y_start = ((change['lhs-y-start'] + ex.lhs_scroller.scrollTop()) * ex.visible_page_ratio);
|
|
var lhs_y_end = ((change['lhs-y-end'] + ex.lhs_scroller.scrollTop()) * ex.visible_page_ratio) + 1;
|
|
var rhs_y_start = ((change['rhs-y-start'] + ex.rhs_scroller.scrollTop()) * ex.visible_page_ratio);
|
|
var rhs_y_end = ((change['rhs-y-end'] + ex.rhs_scroller.scrollTop()) * ex.visible_page_ratio) + 1;
|
|
this.trace('draw', 'marker calculated', lhs_y_start, lhs_y_end, rhs_y_start, rhs_y_end);
|
|
|
|
ctx_lhs.beginPath();
|
|
ctx_lhs.fillStyle = fill;
|
|
ctx_lhs.strokeStyle = '#000';
|
|
ctx_lhs.lineWidth = 0.5;
|
|
ctx_lhs.fillRect(1.5, lhs_y_start, 4.5, Math.max(lhs_y_end - lhs_y_start, 5));
|
|
ctx_lhs.strokeRect(1.5, lhs_y_start, 4.5, Math.max(lhs_y_end - lhs_y_start, 5));
|
|
|
|
ctx_rhs.beginPath();
|
|
ctx_rhs.fillStyle = fill;
|
|
ctx_rhs.strokeStyle = '#000';
|
|
ctx_rhs.lineWidth = 0.5;
|
|
ctx_rhs.fillRect(1.5, rhs_y_start, 4.5, Math.max(rhs_y_end - rhs_y_start, 5));
|
|
ctx_rhs.strokeRect(1.5, rhs_y_start, 4.5, Math.max(rhs_y_end - rhs_y_start, 5));
|
|
|
|
if (!this._is_change_in_view(vp, change)) {
|
|
continue;
|
|
}
|
|
|
|
lhs_y_start = change['lhs-y-start'];
|
|
lhs_y_end = change['lhs-y-end'];
|
|
rhs_y_start = change['rhs-y-start'];
|
|
rhs_y_end = change['rhs-y-end'];
|
|
|
|
var radius = 3;
|
|
|
|
// draw left box
|
|
ctx.beginPath();
|
|
ctx.strokeStyle = fill;
|
|
ctx.lineWidth = (this._current_diff==i) ? 1.5 : 1;
|
|
|
|
var rectWidth = this.draw_lhs_width;
|
|
var rectHeight = lhs_y_end - lhs_y_start - 1;
|
|
var rectX = this.draw_lhs_min;
|
|
var rectY = lhs_y_start;
|
|
// top and top top-right corner
|
|
|
|
// draw left box
|
|
ctx.moveTo(rectX, rectY);
|
|
if (navigator.appName == 'Microsoft Internet Explorer') {
|
|
// IE arcs look awful
|
|
ctx.lineTo(this.draw_lhs_min + this.draw_lhs_width, lhs_y_start);
|
|
ctx.lineTo(this.draw_lhs_min + this.draw_lhs_width, lhs_y_end + 1);
|
|
ctx.lineTo(this.draw_lhs_min, lhs_y_end + 1);
|
|
}
|
|
else {
|
|
if (rectHeight <= 0) {
|
|
ctx.lineTo(rectX + rectWidth, rectY);
|
|
}
|
|
else {
|
|
ctx.arcTo(rectX + rectWidth, rectY, rectX + rectWidth, rectY + radius, radius);
|
|
ctx.arcTo(rectX + rectWidth, rectY + rectHeight, rectX + rectWidth - radius, rectY + rectHeight, radius);
|
|
}
|
|
// bottom line
|
|
ctx.lineTo(rectX, rectY + rectHeight);
|
|
}
|
|
ctx.stroke();
|
|
|
|
rectWidth = this.draw_rhs_width;
|
|
rectHeight = rhs_y_end - rhs_y_start - 1;
|
|
rectX = this.draw_rhs_max;
|
|
rectY = rhs_y_start;
|
|
|
|
// draw right box
|
|
ctx.moveTo(rectX, rectY);
|
|
if (navigator.appName == 'Microsoft Internet Explorer') {
|
|
ctx.lineTo(this.draw_rhs_max - this.draw_rhs_width, rhs_y_start);
|
|
ctx.lineTo(this.draw_rhs_max - this.draw_rhs_width, rhs_y_end + 1);
|
|
ctx.lineTo(this.draw_rhs_max, rhs_y_end + 1);
|
|
}
|
|
else {
|
|
if (rectHeight <= 0) {
|
|
ctx.lineTo(rectX - rectWidth, rectY);
|
|
}
|
|
else {
|
|
ctx.arcTo(rectX - rectWidth, rectY, rectX - rectWidth, rectY + radius, radius);
|
|
ctx.arcTo(rectX - rectWidth, rectY + rectHeight, rectX - radius, rectY + rectHeight, radius);
|
|
}
|
|
ctx.lineTo(rectX, rectY + rectHeight);
|
|
}
|
|
ctx.stroke();
|
|
|
|
// connect boxes
|
|
var cx = this.draw_lhs_min + this.draw_lhs_width;
|
|
var cy = lhs_y_start + (lhs_y_end + 1 - lhs_y_start) / 2.0;
|
|
var dx = this.draw_rhs_max - this.draw_rhs_width;
|
|
var dy = rhs_y_start + (rhs_y_end + 1 - rhs_y_start) / 2.0;
|
|
ctx.moveTo(cx, cy);
|
|
if (cy == dy) {
|
|
ctx.lineTo(dx, dy);
|
|
}
|
|
else {
|
|
// fancy!
|
|
ctx.bezierCurveTo(
|
|
cx + 12, cy - 3, // control-1 X,Y
|
|
dx - 12, dy - 3, // control-2 X,Y
|
|
dx, dy);
|
|
}
|
|
ctx.stroke();
|
|
}
|
|
|
|
// visible window feedback
|
|
ctx_lhs.fillStyle = this.settings.vpcolor;
|
|
ctx_rhs.fillStyle = this.settings.vpcolor;
|
|
|
|
var lto = ex.clhs.height() * ex.visible_page_ratio;
|
|
var lfrom = (ex.lhs_scroller.scrollTop() / ex.gutter_height) * ex.clhs.height();
|
|
var rto = ex.crhs.height() * ex.visible_page_ratio;
|
|
var rfrom = (ex.rhs_scroller.scrollTop() / ex.gutter_height) * ex.crhs.height();
|
|
this.trace('draw', 'cls.height', ex.clhs.height());
|
|
this.trace('draw', 'lhs_scroller.scrollTop()', ex.lhs_scroller.scrollTop());
|
|
this.trace('draw', 'gutter_height', ex.gutter_height);
|
|
this.trace('draw', 'visible_page_ratio', ex.visible_page_ratio);
|
|
this.trace('draw', 'lhs from', lfrom, 'lhs to', lto);
|
|
this.trace('draw', 'rhs from', rfrom, 'rhs to', rto);
|
|
|
|
ctx_lhs.fillRect(1.5, lfrom, 4.5, lto);
|
|
ctx_rhs.fillRect(1.5, rfrom, 4.5, rto);
|
|
|
|
ex.clhs.click(function (ev) {
|
|
var y = ev.pageY - ex.lhs_xyoffset.top - (lto / 2);
|
|
var sto = Math.max(0, (y / mcanvas_lhs.height) * ex.lhs_scroller.get(0).scrollHeight);
|
|
ex.lhs_scroller.scrollTop(sto);
|
|
});
|
|
ex.crhs.click(function (ev) {
|
|
var y = ev.pageY - ex.rhs_xyoffset.top - (rto / 2);
|
|
var sto = Math.max(0, (y / mcanvas_rhs.height) * ex.rhs_scroller.get(0).scrollHeight);
|
|
ex.rhs_scroller.scrollTop(sto);
|
|
});
|
|
},
|
|
trace: function(name) {
|
|
if(this.settings._debug.indexOf(name) >= 0) {
|
|
arguments[0] = name + ':';
|
|
console.log([].slice.apply(arguments));
|
|
}
|
|
}
|
|
});
|
|
|
|
jQuery.pluginMaker = function(plugin) {
|
|
// add the plugin function as a jQuery plugin
|
|
jQuery.fn[plugin.prototype.name] = function(options) {
|
|
// get the arguments
|
|
var args = jQuery.makeArray(arguments),
|
|
after = args.slice(1);
|
|
var rc;
|
|
this.each(function() {
|
|
// see if we have an instance
|
|
var instance = jQuery.data(this, plugin.prototype.name);
|
|
if (instance) {
|
|
// call a method on the instance
|
|
if (typeof options == "string") {
|
|
rc = instance[options].apply(instance, after);
|
|
} else if (instance.update) {
|
|
// call update on the instance
|
|
return instance.update.apply(instance, args);
|
|
}
|
|
} else {
|
|
// create the plugin
|
|
var _plugin = new plugin(this, options);
|
|
}
|
|
});
|
|
if (rc != undefined) return rc;
|
|
};
|
|
};
|
|
|
|
// make the mergely widget
|
|
jQuery.pluginMaker(Mgly.mergely);
|
|
|
|
})( window, document, jQuery, CodeMirror );
|