User:Writ Keeper/Scripts/commonHistory.js

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if (typeof inspectText == "undefined")
{
	inspectText = "inspect diff";
}
if (typeof showText == "undefined")
{
	showText = "show diff";
}
if (typeof hideText == "undefined")
{
	hideText = "hide diff";
}
var specialPageName = mw.config.get("wgCanonicalSpecialPageName");
if (specialPageName  == "Watchlist" ||
	specialPageName  == "Recentchanges" ||
	specialPageName  == "Contributions" ||
	mw.config.get("wgAction") == "history" || 
	specialPageName == "Recentchangeslinked" ||
	(specialPageName == "Blankpage" && mw.config.get("wgTitle").indexOf("section-watchlist") > 0))
{
	function inspectionEachHelper(index, element)
	{
		var findString;
		if (mw.config.get("wgAction") == "history" || $(element).hasClass("mw-enhanced-rc-nested"))
		{
			findString = 'a:contains("prev")';
		}
		else
		{
			findString = 'a:contains("diff")';
		}

		var regex;

		if (specialPageName == "Contributions")
		{
			regex = /&oldid=(\d+)$/;

		}
		else
		{
			regex = /(?:&diff=(\d+)&oldid=|&diff=prev&oldid=(\d+))/;
		}
		var diffLink = $(element).find(findString);
		if (diffLink.length > 0)
		{
			var regexResult = regex.exec(diffLink[0].href);
			if (regexResult != null && regexResult.length >= 2)
			{
				var diffID = regexResult[1] || regexResult[2];
				//don't re-add if it already exists
				if ($("#" + diffID).length > 0)
				{
					return;
				}
				var inlineDiffButton;
				if (typeof inlineDiffBigUI === "undefined")
				{
					inlineDiffButton = document.createElement("a");
					inlineDiffButton.href = "#";
					inlineDiffButton.innerHTML = '<b><span class="comHistBracket" style="color:black;"> [</span><span class="comHistText" style="color:#008A00;">' + inspectText + '</span><span class="comHistBracket" style="color:black;">] </span></b>';
				}
				else
				{
					inlineDiffButton = document.createElement("input");
					inlineDiffButton.type = "button";
					inlineDiffButton.value = "Inspect edit";
				}
				inlineDiffButton.id = diffID;
				$(inlineDiffButton).addClass("inspectDiffButton");
				$(inlineDiffButton).click(function ()
				{
					return inspectWatchlistDiff(this);
				}
				);
				if ($(element).find("tr:first").length == 0)
				{
					$(element).find(".mw-changeslist-separator:first").css("padding-right", 0);
					$(inlineDiffButton).insertAfter($(element).find(".mw-changeslist-separator:first"));
				}
				else
				{
					$(inlineDiffButton).insertBefore($(element).find(".mw-title"));
					$(inlineDiffButton).addClass("mw-enhanced-rc-diff");
					/*
					$(element).find("tr:first").append("<td></td>");
					$(element).find("tr:first>td:last").append(inlineDiffButton);
					*/
				}
			}
		}
	}
	function addWatchlistInspectionBoxes()
	{
		mw.loader.using("mediawiki.diff.styles").done(function()
		{
			var entries = $("#mw-content-text table.mw-enhanced-rc");
			if (entries.length == 0)
			{
				$("#mw-content-text ul").each(function (ind, el)
				{
					$(el).children("li").each(inspectionEachHelper);
				});
			}
			else
			{
				entries.each(inspectionEachHelper);
				$("td.mw-enhanced-rc-nested").each(inspectionEachHelper);
			}
		});
	}

	function inspectWatchlistDiff(button)
	{
		mw.loader.using(['mediawiki.api']).done(function ()
		{
			var mwApi = new mw.Api();
			mwApi.get(
			{
				action: "query",
				prop: "revisions",
				format: "json",
				rvprop: "timestamp",
				rvdiffto: "prev",
				revids: button.id
			}
			).done(function (response)
			{
				if (response == null)
				{
					alert("Request failed!");
					return false;
				}

				var diffString = response.query.pages[Object.keys(response.query.pages)[0]].revisions[0].diff["*"];

				if (diffString == null)
				{
					alert("Request failed!");
					return false;
				}

				var newTable = document.createElement("table");
				newTable.className = "diff";
				$(newTable).html('<colgroup><col class="diff-marker"><col class="diff-content"><col class="diff-marker"><col class="diff-content"></colgroup>');

				$(newTable).append(diffString);
				diffParent = null;
				if ($("#" + button.id).hasClass("mw-enhanced-rc-diff"))
				{
					$("#" + button.id).parents("table").after(newTable);
				}
				else
				{
					diffParent = $("#" + button.id).parent();
					diffParent.append(newTable);
				}
				newTable.id = button.id + "display";

				mw.hook('new-diff-table').fire(newTable);

				$(button).unbind("click");
				if (typeof inlineDiffBigUI === "undefined")
				{
					$(button).html('<b><span class="comHistBracket" style="color:black;"> [</span><span class="comHistText" style="color:#008A00;">' + hideText + '</span><span class="comHistBracket" style="color:black;">] </span></b>');
					$(button).click(function ()
					{
						return hideSmallEditInspection(this);
					}
					);
				}
				else
				{
					$(button).attr("value", "Hide edit");
					$(button).click(function ()
					{
						return hideEditInspection(this);
					}
					);
				}
				if (typeof markAsViewed != "undefined" && markAsViewed)
				{
					mwApi.postWithToken('csrf',
					{
						action: "setnotificationtimestamp",
						revids: button.id
					}
					).done(function (data)
					{
						if (diffParent != null)
						{
							diffParent.removeClass("mw-changeslist-line-watched");
							diffParent.addClass("mw-changeslist-line-not-watched");
						}
					}
					);
				}
			}
			);
		}
		);
		return false;
	}

	function showEditInspection(button)
	{
		$("#" + button.id + "display").css("display", "");
		$(button).attr("value", "Hide edit");
		$(button).unbind("click");
		$(button).click(function ()
		{
			return hideEditInspection(this);
		}
		);
		return false;
	}

	function hideEditInspection(button)
	{
		$("#" + button.id + "display").css("display", "none");
		$(button).attr("value", "Show edit");
		$(button).unbind("click");
		$(button).click(function ()
		{
			return showEditInspection(this);
		}
		);
		return false;
	}

	function showSmallEditInspection(button)
	{
		$("#" + button.id + "display").css("display", "");
		$(button).html('<b><span class="comHistBracket" style="color:black;"> [</span><span class="comHistText" style="color:#008A00;">' + hideText + '</span><span class="comHistBracket" style="color:black;">] </span></b>');
		$(button).unbind("click");
		$(button).click(function ()
		{
			return hideSmallEditInspection(this);
		}
		);
		return false;
	}

	function hideSmallEditInspection(button)
	{
		$("#" + button.id + "display").css("display", "none");
		$(button).html('<b><span class="comHistBracket" style="color:black;"> [</span><span class="comHistText" style="color:#008A00;">' + showText + '</span><span class="comHistBracket" style="color:black;">] </span></b>');
		$(button).unbind("click");
		$(button).click(function ()
		{
			return showSmallEditInspection(this);
		}
		);
		return false;
	}

	mw.hook('wikipage.content').add(addWatchlistInspectionBoxes);
}