Make it possible to disable plugins

boot/boot.js

@@ -967,19 +967,22 @@ $tw.Wiki = function(options) {
 	this.registerPluginTiddlers = function(pluginType,titles) {
 		var self = this,
 			registeredTitles = [],
-			checkTiddler = function(tiddler) {
+			checkTiddler = function(tiddler,title) {
 				if(tiddler && tiddler.fields.type === "application/json" && tiddler.fields["plugin-type"] === pluginType) {
+					var disablingTiddler = self.getTiddler("$:/config/Plugins/Disabled/" + title);
+					if(title === "$:/core" || !disablingTiddler || (disablingTiddler.fields.text || "").trim() !== "yes") {
 						pluginTiddlers.push(tiddler);
 						registeredTitles.push(tiddler.fields.title);
 					}
+				}
 			};
 		if(titles) {
 			$tw.utils.each(titles,function(title) {
-				checkTiddler(self.getTiddler(title));
+				checkTiddler(self.getTiddler(title),title);
 			});
 		} else {
 			this.each(function(tiddler,title) {
-				checkTiddler(tiddler);
+				checkTiddler(tiddler,title);
 			});
 		}
 		return registeredTitles;

core/language/en-GB/ControlPanel.multids

@@ -64,7 +64,12 @@ Basics/Title/Prompt: Title of this ~TiddlyWiki:
 Basics/Username/Prompt: Username for signing edits:
 Basics/Version/Prompt: ~TiddlyWiki version:
 Plugins/Caption: Plugins
+Plugins/Disable/Caption: disable
+Plugins/Disable/Hint: Disable this plugin when reloading page
+Plugins/Disabled/Status: (disabled)
 Plugins/Empty/Hint: None
+Plugins/Enable/Caption: enable
+Plugins/Enable/Hint: Enable this plugin when reloading page
 Plugins/Language/Prompt: Languages
 Plugins/Plugin/Prompt: Plugins
 Plugins/Theme/Prompt: Themes

core/ui/ControlPanel/Plugins.tid

@@ -12,11 +12,10 @@ $(popup-state)$-$(pluginInfoType)$
 \define plugin-icon-title()
 $(currentTiddler)$/icon
 \end
-\define plugin-table(type)
+\define plugin-disable-title()
-<$set name="qualified-state" value=<<qualify "$:/state/plugin-info">>>
+$:/config/Plugins/Disabled/$(currentTiddler)$
-<$list filter="[!has[draft.of]plugin-type[$type$]sort[description]]" emptyMessage=<<lingo "Empty/Hint">>>
+\end
-<$set name="popup-state" value=<<popup-state-macro>>>
+\define plugin-table-body(type,disabledMessage)
-<$link to={{!!title}} class="tw-plugin-info">
 <div class="tw-plugin-info-chunk">
 <$reveal type="nomatch" state=<<popup-state>> text="yes">
 <$button class="btn-invisible btn-dropdown" set=<<popup-state>> setTo="yes">
@@ -36,7 +35,7 @@ $(currentTiddler)$/icon
 </div>
 <div class="tw-plugin-info-chunk">
 <div>
-''<$view field="description"><$view field="title"/></$view>''
+''<$view field="description"><$view field="title"/></$view>'' $disabledMessage$
 </div>
 <div>
 <$view field="title"/>
@@ -45,18 +44,44 @@ $(currentTiddler)$/icon
 <$view field="version"/>
 </div>
 </div>
+\end
+\define plugin-table(type)
+<$set name="qualified-state" value=<<qualify "$:/state/plugin-info">>>
+<$list filter="[!has[draft.of]plugin-type[$type$]sort[description]]" emptyMessage=<<lingo "Empty/Hint">>>
+<$set name="popup-state" value=<<popup-state-macro>>>
+<$reveal type="nomatch" state=<<plugin-disable-title>> text="yes">
+<$link to={{!!title}} class="tw-plugin-info">
+<<plugin-table-body type:"$type$">>
 </$link>
+</$reveal>
+<$reveal type="match" state=<<plugin-disable-title>> text="yes">
+<$link to={{!!title}} class="tw-plugin-info tw-plugin-info-disabled">
+<<plugin-table-body type:"$type$" disabledMessage:"<$macrocall $name='lingo' title='Disabled/Status'/>">>
+</$link>
+</$reveal>
 <$reveal type="match" text="yes" state=<<popup-state>>>
-<$reveal type="nomatch" text="" state="!!list">
 <div class="tw-plugin-info-dropdown">
-<$macrocall $name="tabs" state=<<tabs-state-macro>> tabsList={{!!list}} default="readme" template="$:/core/ui/PluginInfo"/>
+<$list filter="[all[current]] -[[$:/core]]">
+<div style="float:right;">
+<$reveal type="nomatch" state=<<plugin-disable-title>> text="yes">
+<$button set=<<plugin-disable-title>> setTo="yes" title={{$:/language/ControlPanel/Plugins/Disable/Hint}} aria-label={{$:/language/ControlPanel/Plugins/Disable/Caption}}>
+<<lingo Disable/Caption>>
+</$button>
+</$reveal>
+<$reveal type="match" state=<<plugin-disable-title>> text="yes">
+<$button set=<<plugin-disable-title>> setTo="no" title={{$:/language/ControlPanel/Plugins/Enable/Hint}} aria-label={{$:/language/ControlPanel/Plugins/Enable/Caption}}>
+<<lingo Enable/Caption>>
+</$button>
+</$reveal>
 </div>
+</$list>
+<$reveal type="nomatch" text="" state="!!list">
+<$macrocall $name="tabs" state=<<tabs-state-macro>> tabsList={{!!list}} default="readme" template="$:/core/ui/PluginInfo"/>
 </$reveal>
 <$reveal type="match" text="" state="!!list">
-<div class="tw-plugin-info-dropdown">
 No information provided
-</div>
 </$reveal>
+</div>
 </$reveal>
 </$set>
 </$list>

editions/tw5.com/tiddlers/mechanisms/PluginMechanism.tid

@@ -1,5 +1,5 @@
 created: 20130826122000000
-modified: 20140807094840608
+modified: 20140815094840608
 tags: mechanism
 title: PluginMechanism
 type: text/vnd.tiddlywiki
@@ -87,6 +87,16 @@ The wiki object keeps track of all of the currently loaded plugins. If a request
 
 In the browser, any constituent tiddlers that are JavaScript modules (ie shadow tiddlers of content type `application/javascript` and possessing the field `module-type`) are executed during startup processing.
 
+!! Disabling Plugins
+
+Plugins can be disabled by creating a tiddler titled `$:/config/Plugins/Disabled/` concatenated with the plugin title, and setting its text to `yes`.
+
+For example, to disable the plugin `$:/plugins/tiddlywiki/highlight`, the title would be:
+
+```
+$:/config/Plugins/Disabled/$:/plugins/tiddlywiki/highlight
+```
+
 ! Information Tiddlers for Plugins
 
 Plugin authors are encouraged to provide special information and documentation tiddlers that TiddlyWiki can include as plugin information tabs in the [[control panel|$:/ControlPanel]].

themes/tiddlywiki/vanilla/base.tid

@@ -1251,6 +1251,16 @@ canvas.tw-edit-bitmapeditor  {
 	padding: 8px;
 }
 
+.tw-plugin-info-disabled {
+	background: -webkit-repeating-linear-gradient(45deg, #ff0, #ff0 10px, #eee 10px, #eee 20px);
+	background: repeating-linear-gradient(45deg, #ff0, #ff0 10px, #eee 10px, #eee 20px);
+}
+
+.tw-plugin-info-disabled:hover {
+	background: -webkit-repeating-linear-gradient(45deg, #aa0, #aa0 10px, #888 10px, #888 20px);
+	background: repeating-linear-gradient(45deg, #aa0, #aa0 10px, #888 10px, #888 20px);
+}
+
 a.tw-tiddlylink.tw-plugin-info:hover {
 	text-decoration: none;
 	background-color: <<colour primary>>;
@@ -1273,7 +1283,7 @@ a.tw-tiddlylink.tw-plugin-info:hover {
 
 .tw-plugin-info-dropdown {
 	border: 1px solid <<colour muted-foreground>>;
-	padding: 1em;
+	padding: 1em 1em 0 1em;
 	margin-top: -1em;
 }