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diff --git a/framework/TODO.txt b/framework/TODO.txt new file mode 100644 index 00000000..0bfaab26 --- /dev/null +++ b/framework/TODO.txt @@ -0,0 +1,306 @@ +
+think more about encoding/decoding
+<%@ MasterClass="Pages.MasterPage" %>
+THtmlTextWriter::addStyleAttribute(), also change how TStyle renders its content.
+
+
+callback
+
+http://www.xisc.com/index.php?page=homepage
+
+Features to be implemented later:
+- SmartNavigation: TForm, TPage
+- DefaultButton: TForm, TClientScriptManager
+
+Main Problems:
+1. How to solve viewstate ID mapping problems? What if a control has changed its ID before saving viewstate?
+5. What if in a getter, it needs to address a sibling or child control?
+6. learn more details about WebParts
+http://msdn.microsoft.com/library/default.asp?url=/library/en-us/odc_sp2003_ta/html/sharepoint_northwindwebparts.asp
+
+When a page is requested, asp.net 2.0 does the following
+- application creates the page instance by new operator
+- application invokes page.processrequest
+- page.frameworkinitialize is invoked
+- ... ControlBuilder.InitObject(page)
+- ... ... set SkinID
+- ... ... apply stylesheet skin
+- ... ... init simple properties (basic property types)
+- ... ... init complex proprerties (e.g. Font-Name), may need to call InitObject on Font
+- ... ... init data bindings
+- ... ... call BuildChildren if item implements IParserAccessor (Control implements it)
+- ... ... ... for each body item
+- ... ... ... ... get the control builder for the control class
+- ... ... ... ... call ControlBuilder.BuildObject
+- ... ... ... ... ... call InitObject
+- ... ... ... ... if it is user control (control with template)
+- ... ... ... ... ... call UserControl.InitializeAsUserControl(page)
+- ... ... ... ... ... ... call frameworkinitialize (won't call InitObject anymore)
+- ... ... ... ... call control.AddParsedSubObject(item)
+- ... ... init template properties (should be a property with template type, will use TemplateBuilder to build the object)
+- ... ... bind field to control (pass some fields from TemplateControl to the new control)
+
+How is a UserControl initialized if created dynamically?
+- ... InitializeAsUserControl invoked in OnInit (which will be caught up if the control is dynamically created)
+
+
+
+
+Findings:
+
+
+Control lifecycles:
+
+const CS_CONSTRUCTED=0; // after constructor
+const CS_FRAMEWORK_INITIALIZED=1; // after children created and properties set
+const CS_CHILDREN_INITIALIZED=2; // right before OnInit (also before applySkin, but after children OnInit)
+const CS_INITIALIZED=3; // right after OnInit
+const CS_STATE_LOADED=4; // right after loading state
+const CS_LOADED=5; // right after loaded
+const CS_PRERENDERED=6; // right after prerender
+
+stylesheet is applied before setting control properties (after skinID is set)
+skin is applied right before OnInit
+
+
+
+ControlBuilder is responsible to call AddParsedSubObject
+Its BuildChildren is
+
+My understanding of lifecycles:
+
+Page constructed (using new operator)
+Page.ProcessRequest
+ Page.FrameworkInitialize
+ Page.InitializeStyleSheet
+ Page.determinePostBackMode
+ Page.loadScrollPosition
+ Page.performPreInit
+ Page.initRecursive
+ Page.onInitComplete
+ Page.loadAllState
+ Page.processPostData
+ Page.onPreLoad
+ Page.loadRecursive
+ Page.processPostData
+ Page.raiseChangedEvents
+ Page.raisePostBackEvent
+ Page.onLoadComplete
+ Page.raiseCallBackEvent -> exit
+ Page.preRenderRecursive
+ Page.performPreRenderComplete
+ Page.saveAllState
+ Page.onSaveStateComplete
+ Page.renderControl
+ Page.unloadRecursive
+
+
+Possible solution for SkinID: setting SkinID will cause skin change immediately.
+With control hierarchy storing:
+
+
+Page constructed (template parsed but not instantiated)
+Page.loadAllState <---- page state totally restored
+Page.loadRecursive
+Page.processPostData
+Page.raiseChangedEvents
+Page.raisePostBackEvent or Page.raiseCallBackEvent
+Page.preRenderRecursive
+Page.saveAllState
+Page.renderControl
+Page.unloadRecursive
+
+
+
+Page constructed
+Page.frameworkInitialize (instantiating template)
+Page.initRecursive
+Page.saveAllState
+Page.renderControl
+Page.unloadRecursive
+
+
+
+
+edit distance.
+(UIUC) Jiawei Han: graph similarity mining
+
+module service?
+page service?
+
+
+index.php?page=path.to.page
+
+
+TODOs
+
+renderer??
+Dispose
+-->> viewstate id-based or index-based, structure keeping?? <<--
+HttpContext, url/path
+template path
+adapter
+parser
+
+
+class metadata attributes:
+e.g. the body content of a control can be parsed as child controls, or property values
+or list items
+
+Imagine a usecase (hmmm...could have problem....) How to specify two list properties for a single control?
+<com:TListBox>
+<ID>abc</ID>
+<Items>
+ <ListItem Value="yyy">xxx</ListItem>
+ <ListItem>yyy</ListItem>
+</Items>
+</com:TListBox>
+
+
+how to define a control with template??
+TemplateControl.LoadControl or LoadTemplate is used for controls that allows taking template contents for their attributes.
+
+
+UserControl! starting from the template instead of class
+
+
+
+idNotCalculated = 1;
+marked = 2;
+disableViewState = 4;
+controlsCreated = 8;
+invisible = 0x10;
+visibleDirty = 0x20;
+idNotRequired = 0x40;
+isNamingContainer = 0x80;
+creatingControls = 0x100;
+notVisibleOnPage = 0x200;
+themeApplied = 0x400;
+mustRenderID = 0x800;
+disableTheming = 0x1000;
+enableThemingSet = 0x2000;
+styleSheetApplied = 0x4000;
+controlAdapterResolved = 0x8000;
+designMode = 0x10000;
+designModeChecked = 0x20000;
+disableChildControlState = 0x40000;
+isWebControlDisabled = 0x80000;
+controlStateApplied = 0x100000;
+useGeneratedID = 0x200000;
+
+TODO:
+
+clean up ID, namingcontainer things:
+
+A control can be added into page hierarchy in the following ways
+- newly created in template
+ - manual ID
+ - need automatic ID
+- dynamically created in code
+ - manual ID
+ - need automatic ID
+- a previously removed control
+ - manual ID
+ - need automatic ID
+When a control changes its ID, the following things are necessary:
+- If it is a namingContainer
+ - all its descendant must update their unique ID
+- If it is a normal control, nothing needs to be done
+- In both cases, the namingContainer's nametable has to be updated
+When a control changes its page, ...?
+- All its children have to change the page too
+When a control changes its parent, ...?
+- This is like remvoedControl + addedControl.
+When a control changes its namingcontainer ...?
+- All its child controls have to change namingcontainer recursively
+ The old namingContainer nametable must also be changed recursively.
+When a control changes its templateControl...??
+- Nothing to be done.
+
+
+
+ControlState
+============
+Constructed
+Initialized
+ViewStateLoaded
+Loaded
+PreRendered
+
+
+
+asp.net 2.0 lifecycles
+========================
+Application: BeginRequest
+Application: PreAuthenticateRequest
+Application: AuthenticateRequest
+Application: PostAuthenticateRequest
+Application: PreAuthorizeRequest
+Application: AuthorizeRequest
+Application: PostAuthorizeRequest
+Application: PreResolveRequestCache
+Application: ResolveRequestCache
+Application: PostResolveRequestCache
+Application: PreMapRequestHandler
+Page: Construct
+Application: PostMapRequestHandler
+Application: PreAcquireRequestState
+Application: AcquireRequestState
+Application: PostAcquireRequestState
+Application: PreRequestHandlerExecute
+Page: AddParsedSubObject
+Page: CreateControlCollection
+Page: AddedControl
+Page: AddParsedSubObject
+Page: AddedControl
+Page: ResolveAdapter
+Page: DeterminePostBackMode
+Page: PreInit
+Control: ResolveAdapter
+Control: Init
+Control: TrackViewState
+Page: Init
+Page: TrackViewState
+Page: InitComplete
+Page: LoadPageStateFromPersistenceMedium
+Control: LoadViewState
+Page: EnsureChildControls
+Page: CreateChildControls
+Page: PreLoad
+Page: Load
+Control: DataBind
+Control: Load
+Page: EnsureChildControls
+Page: LoadComplete
+Page: EnsureChildControls
+Page: PreRender
+Control: EnsureChildControls
+Control: PreRender
+Page: PreRenderComplete
+Page: SaveViewState
+Control: SaveViewState
+Page: SaveViewState
+Control: SaveViewState
+Page: SavePageStateToPersistenceMedium
+Page: SaveStateComplete
+Page: CreateHtmlTextWriter
+Page: RenderControl
+Page: Render
+Page: RenderChildren
+Control: RenderControl
+Page: VerifyRenderingInServerForm
+Page: CreateHtmlTextWriter
+Control: Unload
+Control: Dispose
+Page: Unload
+Page: Dispose
+Application: PostRequestHandlerExecute
+Application: PreReleaseRequestState
+Application: ReleaseRequestState
+Application: PostReleaseRequestState
+Application: PreUpdateRequestCache
+Application: UpdateRequestCache
+Application: PostUpdateRequestCache
+Application: EndRequest
+Application: PreSendRequestHeaders
+Application: PreSendRequestContent
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