Thumbnail: thumbfast integration

cf. #43

Makefile

@@ -21,6 +21,7 @@ SOURCES += src/Chapters.moon
 SOURCES += src/TimeElapsed.moon
 SOURCES += src/TimeRemaining.moon
 SOURCES += src/HoverTime.moon
+SOURCES += src/Thumbnail.moon
 SOURCES += src/PauseIndicator.moon
 SOURCES += src/Title.moon
 SOURCES += src/SystemTime.moon

src/Thumbnail.moon

@@ -0,0 +1,61 @@
+class Thumbnail extends BarAccent
+
+	rightMargin = settings['thumbnail-right-margin']
+	leftMargin = settings['thumbnail-left-margin']
+	bottomMargin = settings['thumbnail-bottom-margin']
+
+	thumbfast = {
+		width: 0,
+		height: 0,
+		disabled: false
+	}
+
+	new: =>
+		super!
+
+		@line = {}
+		@lastX = -1
+		@animation = Animation bottomMargin, bottomMargin, @animationDuration, @\animate, nil, 0.5
+
+		mp.register_script_message('thumbfast-info', (json) ->
+			data = utils.parse_json(json)
+			if type(data) ~= 'table' or not data.width or not data.height then
+				msg.error('thumbfast-info: received json didn\'t produce a table with thumbnail information')
+			else
+				thumbfast = data
+		)
+
+	reconfigure: =>
+		super!
+		rightMargin = settings['thumbnail-right-margin']
+		leftMargin = settings['thumbnail-left-margin']
+		bottomMargin = settings['thumbnail-bottom-margin']
+		@animation = Animation bottomMargin, bottomMargin, @animationDuration, @\animate, nil, 0.5
+
+	animate: ( value ) =>
+		@needsUpdate = true
+
+		if @active and Mouse.x != @lastX
+			@lastX = Mouse.x
+			if not thumbfast.disabled and thumbfast.width ~= 0 and thumbfast.height ~= 0
+				hoverTime = mp.get_property_number( 'duration', 0 )*Mouse.x/Window.w
+				mp.commandv( 'script-message-to', 'thumbfast', 'thumb',
+					hoverTime,
+					math.min(Window.w - thumbfast.width - 10, math.max(10, Mouse.x - thumbfast.width / 2)),
+					Window.h - bottomMargin - thumbfast.height
+				)
+
+	redraw: =>
+		if @active
+			super!
+			if not thumbfast.disabled and thumbfast.width ~= 0 and thumbfast.height ~= 0
+				hoverTime = mp.get_property_number( 'duration', 0 )*Mouse.x/Window.w
+				mp.commandv( 'script-message-to', 'thumbfast', 'thumb',
+					hoverTime,
+					math.min(Window.w - thumbfast.width - rightMargin, math.max(leftMargin, Mouse.x - thumbfast.width / 2)),
+					Window.h - bottomMargin - thumbfast.height
+				)
+		elseif thumbfast.width ~= 0 and thumbfast.height ~= 0 then
+		    mp.commandv( 'script-message-to', 'thumbfast', 'clear' )
+
+		return @needsUpdate

src/main.moon

@@ -22,7 +22,7 @@ topZone = ActivityZone =>
 
 -- This is kind of ugly but I have gone insane and don't care any more.
 -- Watch the rapidly declining quality of this codebase in realtime.
-local chapters, progressBar, barCache, barBackground, elapsedTime, remainingTime, hoverTime
+local chapters, progressBar, barCache, barBackground, elapsedTime, remainingTime, hoverTime, thumbnail
 
 if settings['enable-bar']
 	-- this order is recorded and (ab)used by BarBase and
@@ -59,6 +59,9 @@ if settings['enable-hover-time']
 	hoverTime = HoverTime!
 	hoverTimeZone\addUIElement hoverTime
 
+thumbnail = Thumbnail!
+bottomZone\addUIElement thumbnail
+
 title = nil
 if settings['enable-title']
 	title = Title!

src/settings.moon

@@ -246,6 +246,24 @@ Controls how far above the expanded progress bar the remaining time display is
 positioned.
 ]]
 
+settings['thumbnail-left-margin'] = 10
+helpText['thumbnail-left-margin'] = [[
+Controls how close to the left edge of the window the thumbnail display can
+get.
+]]
+
+settings['thumbnail-right-margin'] = 10
+helpText['thumbnail-right-margin'] = [[
+Controls how close to the right edge of the window the thumbnail display can
+get.
+]]
+
+settings['thumbnail-bottom-margin'] = 40
+helpText['thumbnail-bottom-margin'] = [[
+Controls how far above the expanded progress bar the thumbnail display is
+positioned.
+]]
+
 settings['enable-title'] = true
 helpText['enable-title'] = [[
 Sets whether or not the video title is displayed at all.

torque-progressbar.conf

@@ -180,6 +180,18 @@ hover-time-right-margin=130
 # positioned.
 hover-time-bottom-margin=0
 
+# Controls how close to the left edge of the window the thumbnail display can
+# get.
+thumbnail-left-margin=10
+
+# Controls how close to the right edge of the window the thumbnail display can
+# get.
+thumbnail-right-margin=10
+
+# Controls how far above the expanded progress bar the thumbnail display is
+# positioned.
+thumbnail-bottom-margin=40
+
 # Sets whether or not the video title is displayed at all.
 enable-title=yes