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Add some js buttons to diffs
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// ==UserScript==
// @name GitHub - Make PRs easier to diff
// @namespace https://github.com/drKnoxy/
// @version 1.1
// @description Add some js buttons to diffs
// @author DrKnoxy
// @include https://github.com/*
// @grant none
// ==/UserScript==
/**
* Internal Application Logic
*/
var tool = (function() {
// Globals and exports
////////////////////////////////////
// Prep global variables
var isWhitespaceVisible = _isWhitespaceVisible();
/**
* The collapse headers feature
*/
var collapse = (function(){
var toggleId = 'js-blob-toggle';
var blobSelector = '.blob-wrapper, .render-wrapper, .file-header + .empty';
var isAllVisible = true;
return {
addElement: addElement,
monitor: monitor
};
//////////////////////
function monitor() {
_monitorHeader();
_monitorToggle();
}
function _monitorHeader() {
$(document).on('click', '.file-header', function(e) {
$(this).next(blobSelector).toggle();
});
}
function _monitorToggle() {
$(document).on('click', '#' + toggleId, function(e) {
e.preventDefault();
// can't use toggle, because we need to obey our state
// not the items state
if (isAllVisible) {
$(this).addClass('selected');
$(blobSelector).hide();
} else {
$(this).removeClass('selected');
$(blobSelector).show();
}
isAllVisible = !isAllVisible;
});
}
function addElement() {
var toggle = {
id: toggleId,
label: 'Collapse'
};
_addToggle(toggle);
}
})();
/**
* The hide whitespace features
*/
var whitespace = (function(isWhitespaceVisible){
var toggleId = 'js-whitespace-toggle';
var isWhitespaceVisible = isWhitespaceVisible;
return {
addElement: addElement,
monitor: monitor
};
//////////////////////
function monitor() {
$(document).on('click', '#' + toggleId, function(e) {
e.preventDefault();
// blow away the whole search query...
window.location.search = isWhitespaceVisible ? '' : 'w=1';
});
}
function addElement() {
var toggle = {
id: toggleId,
label: 'Ignore Whitespace',
isSelected: isWhitespaceVisible
};
_addToggle(toggle);
}
})(isWhitespaceVisible);
var betterTextarea = (function(){
var tabInsertCharacter = " ";
return {
init: init
};
//////////////////////////
function init() {
useTabForIndenting();
}
function useTabForIndenting() {
$(document).on('keydown', 'textarea', function(e) {
// tab was pressed
if (e.keyCode === 9) {
// get caret position/selection
var start = this.selectionStart;
var end = this.selectionEnd;
var $this = $(this);
var value = $this.val();
var newVal = [
value.substring(0, start),
tabInsertCharacter,
value.substring(end)
].join('');
$this.val(newVal);
// put caret at right position
this.selectionStart = this.selectionEnd = start + tabInsertCharacter.length;
// prevent the focus loss
e.preventDefault();
}
});
}
})();
/**
* Public methods
*/
return {
init: init,
addElements: addElements
}
// Implementation logic
/////////////////////
/**
* call me once
*/
function init() {
// Watch for events
collapse.monitor();
whitespace.monitor();
betterTextarea.init();
}
/**
* call me on pjax route change,
* or if you are nervous that ajax happened
*/
function addElements() {
collapse.addElement();
whitespace.addElement();
}
/**
* Add a button to the page
* @param options {id, label, isSelected}
*/
function _addToggle(options) {
var toggleTemplate = '<a id="{{id}}" class="{{cssClass}}" style="margin-left: 4px;">{{label}}</a>';
// Make sure it isn't on the page already
if (!$('#' + options.id).length) {
options.cssClass = 'btn btn-sm right';
if (options.isSelected) {
options.cssClass += ' selected';
}
tmpl = _render(toggleTemplate, options);
$('#toc .btn-group').before(tmpl);
}
}
function _isWhitespaceVisible() {
var search = _getSearchObject();
return (search.w && parseInt(search.w, 10) == 1);
function _getSearchObject() {
var search = {};
if (window.location.search) {
window.location.search.replace('?', '').split('&').forEach(function(el) {
var group = el.split('=');
var prop = group[0];
var val = group[1] || '';
search[prop] = val;
});
}
return search;
}
}
/**
* Simple template rendering
* double curly brace syntax {{id}} or {{ id }}
*
* @param {string} tmpl
* @param {obj} data [description]
* @return {string}
*/
function _render(tmpl, data) {
var curlyBraceRegex = /{{([^}}]+)}}/g
var finds = tmpl.match(curlyBraceRegex);
finds.forEach(function(curlyProp) {
var prop = curlyProp.replace('{{', '').replace('}}','').trim();
if (data[prop]){
tmpl = tmpl.split(curlyProp).join(data[prop]);
}
});
return tmpl;
}
})();
/**
* Applying our tool to github
*/
$(function() {
tool.init();
tool.addElements();
// Add elements on page change
$(document).on('pjax:complete pjax:popstate', function(e) {
tool.addElements();
});
});