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openNG/old/providers/windowManager.coffee

103 lines
3.0 KiB
CoffeeScript

RateLimitedCall = require "../lib/RateLimitedCall"
module.exports = (module) ->
module.factory "windowManager", ->
$document = $(document)
return {
nextZIndex: 0
nextId: 0
windows: {}
currentlyFocusedWindow: null
currentlyDraggedWindow: null
dragWindowOffset: null
currentlyResizedWindow: null
resizeWindowOffset: null
positionCall: null
disableSelection: (element = $document) ->
element
.attr "unselectable", "on"
.css "user-select", "none"
.on "selectstart", false
enableSelection: (element = $document) ->
element
.attr "unselectable", "off"
.css "user-select", "text"
.off "selectstart"
addWindow: (window) ->
windowId = (@nextId += 1).toString() # Because otherwise comparisons will go derp...
windowZIndex = @nextZIndex += 1
@windows[windowId] = window
window.$on "$destroy", (event) =>
delete @windows[windowId]
@focusWindow windowId
return windowId
startDrag: (targetWindowId, offset) ->
@currentlyDraggedWindow = windowScope = @windows[targetWindowId]
@dragWindowOffset = offset
@disableSelection()
@positionCall = new RateLimitedCall 30, ->
windowScope.$apply =>
windowScope.x = this.x
windowScope.y = this.y
$document.on "mousemove.dragWindow", (event) =>
[offsetX, offsetY] = @dragWindowOffset
@positionCall.call ->
this.x = event.pageX - offsetX
this.y = event.pageY - offsetY
$document.on "mouseup.dragWindow", (event) =>
# Clear events and reset internal state
$document.off "mousemove.dragWindow"
$document.off "mouseup.dragWindow"
@currentlyDraggedWindow = null
@dragWindowOffset = null
@enableSelection()
startResize: (targetWindowId, offset) ->
@currentlyResizedWindow = windowScope = @windows[targetWindowId]
@resizeWindowOffset = offset
@disableSelection()
@sizeCall = new RateLimitedCall 30, ->
windowScope.$apply =>
windowScope.width = this.w
windowScope.height = this.h
$document.on "mousemove.resizeWindow", (event) =>
[offsetW, offsetH] = @resizeWindowOffset
@sizeCall.call ->
this.w = event.pageX - offsetW
this.h = event.pageY - offsetH
$document.on "mouseup.resizeWindow", (event) =>
# Clear events and reset internal state
$document.off "mousemove.resizeWindow"
$document.off "mouseup.resizeWindow"
@currentlyResizedWindow = null
@resizeWindowOffset = null
@enableSelection()
focusWindow: (targetWindowId) ->
for windowId, windowScope of @windows
if windowId == targetWindowId
# There's no point in wasting CPU cycles on focusing a window that's
# already focused to begin with. Could also cause issues with z-index
# consumption.
if @currentlyFocusedWindow != windowScope
windowScope.focused = true
windowScope.setZIndex(@nextZIndex += 1)
@currentlyFocusedWindow = windowScope
else
windowScope.focused = false
}