Wyatt Allen 812f225b79 Dynamic tab width
Previously tabs were configured to all use the same width. However, the
tab width setting is supposed to configure the distance between
tab-stops, not the width of the tabs themselves. Additionally, the width
of a tab element as it's inserted into diff content should be the width
needed to get to the next tab-stop.

Reconfigures the `_textLength` and `_addTabWrappers` methods to respect
this aspect of tab behavior.

Notably, `_addTabWrappers` formerly accepted an HTML string as input,
and was called after intraline differences were applied. With this
change it acts only on raw (non-HTML) strings so that it can directly
determine the position of the tab within the line, and it is called
before intraline differences are applied.

Bug: Issue 4252
Change-Id: I44826d917a505a245fd2b20ccf0ac19378f2806c
2016-07-12 15:25:55 -07:00

310 lines
11 KiB
HTML

<!DOCTYPE html>
<!--
Copyright (C) 2016 The Android Open Source Project
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
-->
<meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
<title>gr-diff-builder</title>
<script src="../../../bower_components/webcomponentsjs/webcomponents.min.js"></script>
<script src="../../../bower_components/web-component-tester/browser.js"></script>
<script src="../gr-diff/gr-diff-line.js"></script>
<script src="../gr-diff/gr-diff-group.js"></script>
<script src="gr-diff-builder.js"></script>
<link rel="import" href="gr-diff-builder.html">
<test-fixture id="basic">
<template>
<gr-diff-builder>
<table id="diffTable"></table>
</gr-diff-builder>
</template>
</test-fixture>
<script>
suite('gr-diff-builder tests', function() {
var builder;
setup(function() {
var prefs = {
line_length: 10,
show_tabs: true,
tab_size: 4,
};
builder = new GrDiffBuilder({content: []}, {left: [], right: []}, prefs);
});
test('context control buttons', function() {
var section = {};
var line = {contextGroup: {lines: []}};
// Create 10 lines.
for (var i = 0; i < 10; i++) {
line.contextGroup.lines.push('lorem upsum');
}
// Does not include +10 buttons when there are fewer than 11 lines.
var td = builder._createContextControl(section, line);
var buttons = td.querySelectorAll('gr-button.showContext');
assert.equal(buttons.length, 1);
assert.equal(buttons[0].textContent, 'Show 10 common lines');
// Add another line.
line.contextGroup.lines.push('lorem upsum');
// Includes +10 buttons when there are at least 11 lines.
td = builder._createContextControl(section, line);
buttons = td.querySelectorAll('gr-button.showContext');
assert.equal(buttons.length, 3);
assert.equal(buttons[0].textContent, '+10↑');
assert.equal(buttons[1].textContent, 'Show 11 common lines');
assert.equal(buttons[2].textContent, '+10↓');
});
test('newlines', function() {
var text = 'abcdef';
assert.equal(builder._addNewlines(text, text), text);
text = 'a'.repeat(20);
assert.equal(builder._addNewlines(text, text),
'a'.repeat(10) +
GrDiffBuilder.LINE_FEED_HTML +
'a'.repeat(10));
text = '<span class="thumbsup">👍</span>';
var html = '&lt;span class=&quot;thumbsup&quot;&gt;👍&lt;&#x2F;span&gt;';
assert.equal(builder._addNewlines(text, html),
'&lt;span clas' +
GrDiffBuilder.LINE_FEED_HTML +
's=&quot;thumbsu' +
GrDiffBuilder.LINE_FEED_HTML +
'p&quot;&gt;👍&lt;&#x2F;spa' +
GrDiffBuilder.LINE_FEED_HTML +
'n&gt;');
text = '01234\t56789';
assert.equal(builder._addNewlines(text, text),
'01234\t5' +
GrDiffBuilder.LINE_FEED_HTML +
'6789');
});
test('text length with tabs and unicode', function() {
assert.equal(builder._textLength('12345', 4), 5);
assert.equal(builder._textLength('\t\t12', 4), 10);
assert.equal(builder._textLength('abc💢123', 4), 7);
assert.equal(builder._textLength('abc\t', 8), 8);
assert.equal(builder._textLength('abc\t\t', 10), 20);
assert.equal(builder._textLength('', 10), 0);
assert.equal(builder._textLength('', 10), 0);
assert.equal(builder._textLength('abc\tde', 10), 12);
assert.equal(builder._textLength('abc\tde\t', 10), 20);
assert.equal(builder._textLength('\t\t\t\t\t', 20), 100);
});
test('tab wrapper insertion', function() {
var html = 'abc\tdef';
var wrapper = builder._getTabWrapper(
builder._prefs.tab_size - 3,
builder._prefs.show_tabs);
assert.ok(wrapper);
assert.isAbove(wrapper.length, 0);
assert.equal(builder._addTabWrappers(html, builder._prefs.tab_size),
'abc' + wrapper + 'def');
assert.throws(builder._getTabWrapper.bind(
builder,
// using \x3c instead of < in string so gjslint can parse
'">\x3cimg src="/" onerror="alert(1);">\x3cspan class="',
true));
});
test('comments', function() {
var line = new GrDiffLine(GrDiffLine.Type.BOTH);
line.beforeNumber = 3;
line.afterNumber = 5;
var comments = {left: [], right: []};
assert.deepEqual(builder._getCommentsForLine(comments, line), []);
assert.deepEqual(builder._getCommentsForLine(comments, line,
GrDiffBuilder.Side.LEFT), []);
assert.deepEqual(builder._getCommentsForLine(comments, line,
GrDiffBuilder.Side.RIGHT), []);
comments = {
left: [
{id: 'l3', line: 3},
{id: 'l5', line: 5},
],
right: [
{id: 'r3', line: 3},
{id: 'r5', line: 5},
],
};
assert.deepEqual(builder._getCommentsForLine(comments, line),
[{id: 'l3', line: 3}, {id: 'r5', line: 5}]);
assert.deepEqual(builder._getCommentsForLine(comments, line,
GrDiffBuilder.Side.LEFT), [{id: 'l3', line: 3}]);
assert.deepEqual(builder._getCommentsForLine(comments, line,
GrDiffBuilder.Side.RIGHT), [{id: 'r5', line: 5}]);
});
test('comment thread creation', function() {
builder._comments = {
meta: {
changeNum: '42',
patchRange: {
basePatchNum: 'PARENT',
patchNum: '3',
},
path: '/path/to/foo',
projectConfig: {foo: 'bar'},
},
left: [
{id: 'l3', line: 3},
{id: 'l5', line: 5},
],
right: [
{id: 'r5', line: 5},
],
};
function checkThreadProps(threadEl, patchNum, side, comments) {
assert.equal(threadEl.changeNum, '42');
assert.equal(threadEl.patchNum, patchNum);
assert.equal(threadEl.path, '/path/to/foo');
assert.equal(threadEl.side, side);
assert.deepEqual(threadEl.projectConfig, {foo: 'bar'});
assert.deepEqual(threadEl.comments, comments);
}
var line = new GrDiffLine(GrDiffLine.Type.BOTH);
line.beforeNumber = 5;
line.afterNumber = 5;
var threadEl = builder._commentThreadForLine(line);
checkThreadProps(threadEl, '3', 'REVISION',
[{id: 'l5', line: 5}, {id: 'r5', line: 5}]);
threadEl = builder._commentThreadForLine(line, GrDiffBuilder.Side.RIGHT);
checkThreadProps(threadEl, '3', 'REVISION', [{id: 'r5', line: 5}]);
threadEl = builder._commentThreadForLine(line, GrDiffBuilder.Side.LEFT);
checkThreadProps(threadEl, '3', 'PARENT', [{id: 'l5', line: 5}]);
builder._comments.meta.patchRange.basePatchNum = '1';
threadEl = builder._commentThreadForLine(line);
checkThreadProps(threadEl, '3', 'REVISION',
[{id: 'l5', line: 5}, {id: 'r5', line: 5}]);
threadEl = builder._commentThreadForLine(line, GrDiffBuilder.Side.LEFT);
checkThreadProps(threadEl, '1', 'REVISION', [{id: 'l5', line: 5}]);
threadEl = builder._commentThreadForLine(line, GrDiffBuilder.Side.RIGHT);
checkThreadProps(threadEl, '3', 'REVISION', [{id: 'r5', line: 5}]);
builder._comments.meta.patchRange.basePatchNum = 'PARENT';
line = new GrDiffLine(GrDiffLine.Type.REMOVE);
line.beforeNumber = 5;
line.afterNumber = 5;
threadEl = builder._commentThreadForLine(line);
checkThreadProps(threadEl, '3', 'PARENT',
[{id: 'l5', line: 5}, {id: 'r5', line: 5}]);
line = new GrDiffLine(GrDiffLine.Type.ADD);
line.beforeNumber = 3;
line.afterNumber = 5;
threadEl = builder._commentThreadForLine(line);
checkThreadProps(threadEl, '3', 'REVISION',
[{id: 'l3', line: 3}, {id: 'r5', line: 5}]);
});
suite('rendering', function() {
var content;
var outputEl;
setup(function(done) {
var prefs = {
line_length: 10,
show_tabs: true,
tab_size: 4,
context: -1
};
content = [
{
a: ['all work and no play make andybons a dull boy'],
b: ['elgoog elgoog elgoog']
},
{
ab: [
'Non eram nescius, Brute, cum, quae summis ingeniis ',
'exquisitaque doctrina philosophi Graeco sermone tractavissent',
]
},
];
element = fixture('basic');
outputEl = element.queryEffectiveChildren('#diffTable');
element.addEventListener('render', function() {
done();
});
sinon.stub(element, '_getDiffBuilder', function() {
var builder = new GrDiffBuilder(
{content: content}, {left: [], right: []}, prefs, outputEl);
builder.buildSectionElement = function(group) {
var section = document.createElement('stub');
section.textContent = group.lines.reduce(function(acc, line) {
return acc + line.text;
}, '');
return section;
};
return builder;
});
element.render({ content: content }, {left: [], right: []}, prefs);
});
test('renderSection', function() {
var section = outputEl.querySelector('stub:nth-of-type(2)');
var prevInnerHTML = section.innerHTML;
section.innerHTML = 'wiped';
element._builder.renderSection(section);
section = outputEl.querySelector('stub:nth-of-type(2)');
assert.equal(section.innerHTML, prevInnerHTML);
});
test('getSectionsByLineRange one line', function() {
var section = outputEl.querySelector('stub:nth-of-type(2)');
var sections = element._builder.getSectionsByLineRange(1, 1, 'left');
assert.equal(sections.length, 1);
assert.strictEqual(sections[0], section);
});
test('getSectionsByLineRange over diff', function() {
var section = [
outputEl.querySelector('stub:nth-of-type(2)'),
outputEl.querySelector('stub:nth-of-type(3)'),
];
var sections = element._builder.getSectionsByLineRange(1, 2, 'left');
assert.equal(sections.length, 2);
assert.strictEqual(sections[0], section[0]);
assert.strictEqual(sections[1], section[1]);
});
});
});
</script>