author | Claus Gittinger <cg@exept.de> |
Thu, 02 Aug 2018 17:14:25 +0200 | |
changeset 4153 | c7afa8b79aa7 |
parent 4134 | 92df688b5ffe |
child 4167 | 3ebfb7658859 |
permissions | -rw-r--r-- |
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"{ Encoding: utf8 }" |
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" |
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COPYRIGHT (c) 1995 by Claus Gittinger |
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All Rights Reserved |
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This software is furnished under a license and may be used |
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only in accordance with the terms of that license and with the |
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inclusion of the above copyright notice. This software may not |
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be provided or otherwise made available to, or used by, any |
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other person. No title to or ownership of the software is |
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hereby transferred. |
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" |
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"{ Package: 'stx:libview2' }" |
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"{ NameSpace: Smalltalk }" |
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EventListener subclass:#ActiveHelp |
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instanceVariableNames:'lastHelpText listeningForAll applicationsOrTopViewsWithHelp |
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lastHelpWidget lastPointerPosition pointerPositionAtShowTime' |
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classVariableNames:'Debugging DebuggingHelpText DebuggingEvents' |
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poolDictionaries:'' |
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category:'Interface-Help' |
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! |
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ActiveHelp class instanceVariableNames:'DelayTime ShowTime TheOneAndOnlyHelpListener' |
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" |
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No other class instance variables are inherited by this class. |
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" |
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! |
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!ActiveHelp class methodsFor:'documentation'! |
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copyright |
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" |
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COPYRIGHT (c) 1995 by Claus Gittinger |
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All Rights Reserved |
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This software is furnished under a license and may be used |
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only in accordance with the terms of that license and with the |
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inclusion of the above copyright notice. This software may not |
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be provided or otherwise made available to, or used by, any |
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other person. No title to or ownership of the software is |
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hereby transferred. |
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" |
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! |
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documentation |
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" |
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The active help (tooltip) listener. |
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The one and only instance of myself intercepts incoming mouse & keyboard |
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events for the display device, being especially interested in view-enter/ |
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leave events. When such an event arrives, it asks the corresponding view |
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or its model for a help message and displays it via an ActiveHelpView. |
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Actually, the view is first asked if it would like to display it itself |
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- for example, in some information-view at the bottom of its main window. |
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The query for the helpText is repeated along the view's superView chain, |
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until any model or view returns a nonNil answer for the |
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#helpTextFor:<aSubView> at:<position> or #helpTextFor:<aSubView> message. |
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All I need for automatic help is some model/view/applicationModel along |
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the superview chain of the entered component, which responds to the |
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#helpTextFor: message with a non-nil (string-) answer. |
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I close down the help view after a while, if a key is pressed or the mouse |
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moved to another view. |
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Who should provide the helpText: |
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the best place is the application object (an instance of ApplicationModel) |
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or the topView, if it's a derived class of StandardSystemView. |
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This should know about its components and return the string |
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when asked via #helpTextFor:<aSubView>. |
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See examples in FileBrowser, Launcher etc. |
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Be aware, that for applicationModels, there must be a link from the |
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topView to this applicationModel |
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(set via: aTopView application:anApplicationModel) |
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otherwise, the helpManager has no means of finding the application which |
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corresponds to a view. |
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Who should display the helpText: |
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by default, the helpListener opens a little popup view, which displays the |
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returned help message. However, a nice trick which can be used by applications |
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is to create an infoLabel as a subview of the topFrame (a la windows) |
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and display the text right in the #helpTextFor: method. To cheat the |
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help listener, this method should then return nil, to keep it silent. |
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Usage: |
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If help is to be shown for all views (as enabled by the launchers help menu), |
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use 'ActiveHelp start' and 'ActiveHelp stop'. |
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Individual apps may enable/disable active help for themself by: |
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'ActiveHelp startFor:app' or 'ActiveHelp stopFor:app', passing either |
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the topView or the topViews application as argument. |
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This is usually done by applications which want to show contextHelp in |
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some infoView. |
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Late note: thsi is no longer recommended - one such mouse watcher process is |
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good enough for all views. |
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[author:] |
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Claus Gittinger |
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[start with:] |
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ActiveHelp start |
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ActiveHelp stop |
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[See also:] |
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ActiveHelpView |
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WindowGroup WindowEvent |
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ApplicationModel StandardSystemView |
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" |
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! |
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examples |
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" |
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Active Help for a single view |
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or app (whatever the global settings are): |
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Can be initiated by an app when its opened. |
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[exBegin] |
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|app top myAppClass| |
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Class withoutUpdatingChangesDo:[ |
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myAppClass := ApplicationModel |
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subclass:#'Demos::DemoApp' |
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instanceVariableNames:'' |
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classVariableNames:'' |
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poolDictionaries:'' |
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category:'demos'. |
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myAppClass |
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compile:'helpTextFor:aView Transcript showCR:''hello''. ^ ''this is some helpText'''. |
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]. |
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app := myAppClass new. |
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top := StandardSystemView new. |
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top extent:300@100. |
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top application:app. |
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top open. |
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ActiveHelp startFor:app. |
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Class withoutUpdatingChangesDo:[ |
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myAppClass removeFromSystem |
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] |
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[exEnd] |
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Active Help (for all views): |
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(make certain that activeHelp is turned on ... |
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... otherwise, you will see nothing) |
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the following example uses a Plug as a model replacement. |
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In concrete application, you would create a method to implement the helpText |
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query message. |
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[exBegin] |
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|app top button1 button2| |
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app := Plug new. |
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app respondTo:#helpTextFor: |
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with:[:view | |
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view == button1 ifTrue:[ |
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'this is button1' |
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] ifFalse:[ |
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view == button2 ifTrue:[ |
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'some help for button2' |
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] ifFalse:[ |
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nil |
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] |
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] |
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]. |
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top := StandardSystemView new. |
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top extent:300@100. |
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button1 := Button label:'b1' in:top. |
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button1 origin:0.0@0.0 corner:0.5@30. |
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button2 := Button label:'b2' in:top. |
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button2 origin:0.5@0.0 corner:1.0@30. |
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top model:app. '<-- normally this would be: top application:app'. |
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top open |
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[exEnd] |
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(make certain that activeHelp is turned on ... |
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... otherwise, you will see nothing) |
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alternatively, display of the helpMessage in a local, private view: |
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[exBegin] |
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|app top button1 button2 infoView| |
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app := Plug new. |
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app respondTo:#helpTextFor: |
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with:[:view | infoView label:'info ...'. |
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view == button1 ifTrue:[ |
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infoView label:'this is button1' |
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]. |
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view == button2 ifTrue:[ |
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infoView label:'some help for button2' |
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]. |
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nil |
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]. |
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top := StandardSystemView new. |
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top extent:300@100. |
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button1 := Button label:'b1' in:top. |
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button1 origin:0.0@0.0 corner:0.5@30. |
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button2 := Button label:'b2' in:top. |
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button2 origin:0.5@0.0 corner:1.0@30. |
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infoView := Label label:'info ...' in:top. |
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infoView level:-1; origin:0.0@1.0 corner:1.0@1.0. |
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infoView topInset:(infoView preferredExtent y negated - 3); |
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leftInset:3; |
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rightInset:3; |
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bottomInset:3; |
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adjust:#left. |
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top model:app. '<-- normally this would be: top application:app'. |
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top open |
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[exEnd] |
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" |
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! ! |
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!ActiveHelp class methodsFor:'initialization'! |
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initialize |
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Debugging := false. |
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DebuggingEvents := false. |
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DebuggingHelpText := false. |
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"Modified: / 19-06-2018 / 12:53:36 / Claus Gittinger" |
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! ! |
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!ActiveHelp class methodsFor:'accessing'! |
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debugging |
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^ Debugging ? false |
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"Modified: / 22-12-2011 / 10:46:30 / cg" |
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"Modified: / 11-06-2018 / 10:27:40 / Claus Gittinger" |
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! |
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debugging:aBoolean |
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Debugging := aBoolean. |
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" |
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self debugging:true |
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self debugging:false |
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" |
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"Modified (comment): / 22-12-2011 / 10:43:32 / cg" |
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"Modified (format): / 11-06-2018 / 10:30:30 / Claus Gittinger" |
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! |
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debuggingHelpText |
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^ DebuggingHelpText ? false |
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"Created: / 11-06-2018 / 10:30:10 / Claus Gittinger" |
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! |
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debuggingHelpText:aBoolean |
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DebuggingHelpText := aBoolean. |
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" |
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self debuggingHelpText:true |
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self debuggingHelpText:false |
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" |
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"Created: / 11-06-2018 / 10:30:24 / Claus Gittinger" |
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! ! |
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!ActiveHelp class methodsFor:'queries'! |
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currentHelpListener |
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"return the activeHelp listener if activeHelp is turned on, nil otherwise" |
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^ TheOneAndOnlyHelpListener |
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" |
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ActiveHelp currentHelpListener |
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FlyByHelp currentHelpListener |
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" |
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"Created: 28.6.1997 / 13:59:44 / cg" |
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! |
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delayTime |
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^ DelayTime ? 0.4 |
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! |
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isActive |
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"return true, if activeHelp is turned on" |
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TheOneAndOnlyHelpListener notNil ifTrue:[ |
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((WindowSensor eventListeners ? #()) includesIdentical:TheOneAndOnlyHelpListener) ifTrue:[ |
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^ true |
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]. |
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TheOneAndOnlyHelpListener := nil. |
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]. |
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^ false. |
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" |
f314814a3105
do not show help for inactive (background) views.
Claus Gittinger <cg@exept.de>
parents:
3333
diff
changeset
|
305 |
FlyByHelp isActive |
f314814a3105
do not show help for inactive (background) views.
Claus Gittinger <cg@exept.de>
parents:
3333
diff
changeset
|
306 |
" |
233 | 307 |
|
308 |
"Modified: 27.4.1996 / 15:07:57 / cg" |
|
1892 | 309 |
! |
310 |
||
311 |
showTime |
|
2879 | 312 |
"set the number of seconds, a help messages is to be shown. |
3447 | 313 |
The default is 45 seconds. |
3333 | 314 |
0 means: show forever (i.e. until mouse is moved)" |
2879 | 315 |
|
3447 | 316 |
^ ShowTime ? 45 |
2879 | 317 |
|
318 |
"Modified: / 10-11-2010 / 12:29:44 / cg" |
|
633 | 319 |
! ! |
320 |
||
719
17fba5c2a167
allow applications to start activeHelp for
Claus Gittinger <cg@exept.de>
parents:
696
diff
changeset
|
321 |
!ActiveHelp class methodsFor:'start & stop'! |
59 | 322 |
|
323 |
start |
|
719
17fba5c2a167
allow applications to start activeHelp for
Claus Gittinger <cg@exept.de>
parents:
696
diff
changeset
|
324 |
"start activeHelp for all apps" |
233 | 325 |
|
2391 | 326 |
TheOneAndOnlyHelpListener notNil ifTrue:[ |
327 |
TheOneAndOnlyHelpListener stop. |
|
328 |
TheOneAndOnlyHelpListener := nil. |
|
329 |
]. |
|
330 |
||
59 | 331 |
TheOneAndOnlyHelpListener isNil ifTrue:[ |
233 | 332 |
TheOneAndOnlyHelpListener := self new. |
59 | 333 |
]. |
2391 | 334 |
TheOneAndOnlyHelpListener start. |
335 |
^ TheOneAndOnlyHelpListener |
|
59 | 336 |
|
337 |
" |
|
338 |
ActiveHelp start |
|
1535
a9fcabccabb3
separated into flyByHelp and activeHelp
Claus Gittinger <cg@exept.de>
parents:
1502
diff
changeset
|
339 |
FlyByHelp start |
59 | 340 |
" |
233 | 341 |
|
719
17fba5c2a167
allow applications to start activeHelp for
Claus Gittinger <cg@exept.de>
parents:
696
diff
changeset
|
342 |
"Modified: / 26.10.1997 / 23:16:54 / cg" |
17fba5c2a167
allow applications to start activeHelp for
Claus Gittinger <cg@exept.de>
parents:
696
diff
changeset
|
343 |
! |
17fba5c2a167
allow applications to start activeHelp for
Claus Gittinger <cg@exept.de>
parents:
696
diff
changeset
|
344 |
|
17fba5c2a167
allow applications to start activeHelp for
Claus Gittinger <cg@exept.de>
parents:
696
diff
changeset
|
345 |
startFor:anApplicationOrTopView |
17fba5c2a167
allow applications to start activeHelp for
Claus Gittinger <cg@exept.de>
parents:
696
diff
changeset
|
346 |
"start activeHelp for a single app" |
17fba5c2a167
allow applications to start activeHelp for
Claus Gittinger <cg@exept.de>
parents:
696
diff
changeset
|
347 |
|
17fba5c2a167
allow applications to start activeHelp for
Claus Gittinger <cg@exept.de>
parents:
696
diff
changeset
|
348 |
TheOneAndOnlyHelpListener isNil ifTrue:[ |
17fba5c2a167
allow applications to start activeHelp for
Claus Gittinger <cg@exept.de>
parents:
696
diff
changeset
|
349 |
TheOneAndOnlyHelpListener := self new. |
17fba5c2a167
allow applications to start activeHelp for
Claus Gittinger <cg@exept.de>
parents:
696
diff
changeset
|
350 |
]. |
17fba5c2a167
allow applications to start activeHelp for
Claus Gittinger <cg@exept.de>
parents:
696
diff
changeset
|
351 |
TheOneAndOnlyHelpListener listenFor:anApplicationOrTopView |
17fba5c2a167
allow applications to start activeHelp for
Claus Gittinger <cg@exept.de>
parents:
696
diff
changeset
|
352 |
|
17fba5c2a167
allow applications to start activeHelp for
Claus Gittinger <cg@exept.de>
parents:
696
diff
changeset
|
353 |
"Modified: / 26.10.1997 / 23:17:05 / cg" |
59 | 354 |
! |
355 |
||
356 |
stop |
|
719
17fba5c2a167
allow applications to start activeHelp for
Claus Gittinger <cg@exept.de>
parents:
696
diff
changeset
|
357 |
"stop activeHelp for all (except for individual apps)" |
233 | 358 |
|
59 | 359 |
TheOneAndOnlyHelpListener notNil ifTrue:[ |
2391 | 360 |
TheOneAndOnlyHelpListener stop. |
1535
a9fcabccabb3
separated into flyByHelp and activeHelp
Claus Gittinger <cg@exept.de>
parents:
1502
diff
changeset
|
361 |
TheOneAndOnlyHelpListener := nil. |
59 | 362 |
]. |
363 |
||
364 |
" |
|
365 |
ActiveHelp stop |
|
1543 | 366 |
FlyByHelp stop |
59 | 367 |
" |
233 | 368 |
|
719
17fba5c2a167
allow applications to start activeHelp for
Claus Gittinger <cg@exept.de>
parents:
696
diff
changeset
|
369 |
"Modified: / 26.10.1997 / 23:18:58 / cg" |
17fba5c2a167
allow applications to start activeHelp for
Claus Gittinger <cg@exept.de>
parents:
696
diff
changeset
|
370 |
! |
17fba5c2a167
allow applications to start activeHelp for
Claus Gittinger <cg@exept.de>
parents:
696
diff
changeset
|
371 |
|
17fba5c2a167
allow applications to start activeHelp for
Claus Gittinger <cg@exept.de>
parents:
696
diff
changeset
|
372 |
stopFor:anAppOrTopView |
17fba5c2a167
allow applications to start activeHelp for
Claus Gittinger <cg@exept.de>
parents:
696
diff
changeset
|
373 |
"stop activeHelp for a single app" |
17fba5c2a167
allow applications to start activeHelp for
Claus Gittinger <cg@exept.de>
parents:
696
diff
changeset
|
374 |
|
17fba5c2a167
allow applications to start activeHelp for
Claus Gittinger <cg@exept.de>
parents:
696
diff
changeset
|
375 |
TheOneAndOnlyHelpListener notNil ifTrue:[ |
17fba5c2a167
allow applications to start activeHelp for
Claus Gittinger <cg@exept.de>
parents:
696
diff
changeset
|
376 |
TheOneAndOnlyHelpListener unlistenFor:anAppOrTopView. |
17fba5c2a167
allow applications to start activeHelp for
Claus Gittinger <cg@exept.de>
parents:
696
diff
changeset
|
377 |
]. |
17fba5c2a167
allow applications to start activeHelp for
Claus Gittinger <cg@exept.de>
parents:
696
diff
changeset
|
378 |
|
17fba5c2a167
allow applications to start activeHelp for
Claus Gittinger <cg@exept.de>
parents:
696
diff
changeset
|
379 |
"Modified: / 26.10.1997 / 23:12:55 / cg" |
17fba5c2a167
allow applications to start activeHelp for
Claus Gittinger <cg@exept.de>
parents:
696
diff
changeset
|
380 |
"Created: / 26.10.1997 / 23:18:41 / cg" |
138 | 381 |
! ! |
382 |
||
338
071f92621e3b
oops - catching the terminateSignal is no good idea
Claus Gittinger <cg@exept.de>
parents:
330
diff
changeset
|
383 |
!ActiveHelp class methodsFor:'times'! |
138 | 384 |
|
385 |
delayTime:numberOfSeconds |
|
386 |
"set the delay (the time, the cursor has to be in the view |
|
387 |
before help is shown). The default is 2 seconds." |
|
388 |
||
389 |
DelayTime := numberOfSeconds |
|
390 |
||
391 |
" |
|
392 |
ActiveHelp delayTime:0.5 |
|
393 |
ActiveHelp delayTime:2 |
|
394 |
ActiveHelp delayTime:10 |
|
395 |
" |
|
59 | 396 |
! |
397 |
||
138 | 398 |
showTime:numberOfSeconds |
399 |
"set the number of seconds, a help messages is to be shown. |
|
3333 | 400 |
The default is 30 seconds. |
401 |
0 means: show forever (i.e. until mouse is moved)" |
|
138 | 402 |
|
403 |
ShowTime := numberOfSeconds |
|
404 |
||
405 |
" |
|
406 |
ActiveHelp showTime:10 |
|
407 |
ActiveHelp showTime:99999 |
|
408 |
ActiveHelp showTime:30 |
|
409 |
" |
|
2879 | 410 |
|
411 |
"Modified: / 10-11-2010 / 12:29:40 / cg" |
|
138 | 412 |
! ! |
413 |
||
2391 | 414 |
!ActiveHelp methodsFor:'event handling'! |
138 | 415 |
|
2473 | 416 |
buttonMotion:buttonAndModifierState x:x y:y view:aView |
1657 | 417 |
"handle motion events - prepare to show help" |
233 | 418 |
|
2782 | 419 |
|realViewUnderCursor realP| |
420 |
||
4153 | 421 |
"/ Debugging := true |
2473 | 422 |
buttonAndModifierState == 0 ifTrue:[ |
2783
cb3420e40ed1
changed: #buttonMotion:x:y:view:
Claus Gittinger <cg@exept.de>
parents:
2782
diff
changeset
|
423 |
"/ realViewUnderCursor := aView device viewFromPoint:(aView pointerPosition). |
cb3420e40ed1
changed: #buttonMotion:x:y:view:
Claus Gittinger <cg@exept.de>
parents:
2782
diff
changeset
|
424 |
"/ realP := aView device translatePoint:(x@y) fromView:aView toView:realViewUnderCursor. |
cb3420e40ed1
changed: #buttonMotion:x:y:view:
Claus Gittinger <cg@exept.de>
parents:
2782
diff
changeset
|
425 |
"/ self handleMouseIn:realViewUnderCursor x:realP x y:realP y. |
3292 | 426 |
Debugging ifTrue:['motion' infoPrintCR]. |
2783
cb3420e40ed1
changed: #buttonMotion:x:y:view:
Claus Gittinger <cg@exept.de>
parents:
2782
diff
changeset
|
427 |
self handleMouseIn:aView x:x y:y. |
1948
33eb423a6fd3
only act when no mouse-button is pressed
Claus Gittinger <cg@exept.de>
parents:
1909
diff
changeset
|
428 |
]. |
138 | 429 |
^ false |
4122 | 430 |
|
431 |
"Modified: / 11-06-2018 / 10:31:42 / Claus Gittinger" |
|
4153 | 432 |
"Modified (format): / 02-08-2018 / 16:12:45 / Claus Gittinger" |
138 | 433 |
! |
434 |
||
4123 | 435 |
handleMouseIn:aView x:x y:y |
436 |
"handle motion events - if the mousepointer left the |
|
437 |
previous helped view, hide the help" |
|
438 |
||
4134 | 439 |
"/ Debugging := true. |
440 |
"/ Debugging := false. |
|
4123 | 441 |
Debugging ifTrue:['mouse in' infoPrintCR]. |
442 |
(self interestedIn:aView) ifFalse:[ |
|
4134 | 443 |
Debugging ifTrue:[Timestamp now infoPrint. ' - not interested 0' infoPrintCR]. |
4123 | 444 |
^ self |
445 |
]. |
|
446 |
||
447 |
Error handle:[:ex | |
|
448 |
InfoPrinting == true ifTrue:[ |
|
449 |
'---------------------' infoPrintCR. |
|
450 |
ex description infoPrintCR. |
|
451 |
ex suspendedContext fullPrintAll. |
|
452 |
]. |
|
453 |
] do:[ |
|
454 |
|sensor| |
|
455 |
||
456 |
"/ self stopHelpDisplayProcess. |
|
457 |
Debugging ifTrue:['hideIf' infoPrintCR]. |
|
458 |
self hideIfPointerLeft:aView. |
|
459 |
||
460 |
"/ check again, in case the stop/hide changed something... |
|
461 |
(self interestedIn:aView) ifFalse:[ |
|
462 |
Debugging ifTrue:['not interested2' infoPrintCR]. |
|
463 |
^ self |
|
464 |
]. |
|
465 |
||
466 |
"/ if there is a sensor, let the view do it itself (in its process) |
|
467 |
(self targetViewInitiatesHelpViaSensor |
|
468 |
and:[ (sensor := aView sensor) notNil ]) |
|
469 |
ifTrue:[ |
|
4153 | 470 |
Debugging ifTrue:['target shows help' infoPrintCR]. |
4123 | 471 |
sensor flushEventsFor:self withType:#initiateHelpFor:at:. |
472 |
sensor |
|
473 |
pushUserEvent:#initiateHelpFor:at: for:self |
|
474 |
withArguments:(Array with:aView with:(x @ y)). |
|
475 |
] ifFalse:[ |
|
4153 | 476 |
Debugging ifTrue:['I show help' infoPrintCR]. |
4123 | 477 |
self initiateHelpFor:aView at:(x @ y). |
478 |
] |
|
479 |
]. |
|
480 |
||
4153 | 481 |
"Modified: / 02-08-2018 / 16:17:34 / Claus Gittinger" |
4123 | 482 |
! |
483 |
||
1591 | 484 |
keyPress:key x:x y:y view:view |
1535
a9fcabccabb3
separated into flyByHelp and activeHelp
Claus Gittinger <cg@exept.de>
parents:
1502
diff
changeset
|
485 |
"unconditionally hide the help view" |
233 | 486 |
|
4153 | 487 |
Debugging ifTrue:['key press: ' infoPrint. key infoPrintCR]. |
488 |
key == #Help ifTrue:[ |
|
489 |
self initiateHelpFor:view at:(x @ y). |
|
490 |
^ true. |
|
491 |
]. |
|
1535
a9fcabccabb3
separated into flyByHelp and activeHelp
Claus Gittinger <cg@exept.de>
parents:
1502
diff
changeset
|
492 |
self hideHelpIgnoringErrors. |
138 | 493 |
^ false |
233 | 494 |
|
4153 | 495 |
"Modified: / 27-04-1996 / 15:09:57 / cg" |
496 |
"Modified: / 02-08-2018 / 16:50:25 / Claus Gittinger" |
|
497 |
! |
|
498 |
||
499 |
keyRelease:key x:x y:y view:view |
|
500 |
"unconditionally hide the help view" |
|
501 |
||
502 |
Debugging ifTrue:['key release: ' infoPrint. key infoPrintCR]. |
|
503 |
key == #Help ifTrue:[ |
|
504 |
]. |
|
505 |
self hideHelpIgnoringErrors. |
|
506 |
^ false |
|
507 |
||
508 |
"Created: / 02-08-2018 / 16:16:19 / Claus Gittinger" |
|
138 | 509 |
! |
510 |
||
511 |
pointerEnter:state x:x y:y view:aView |
|
1657 | 512 |
"handle pointer entering a view; prepare to show help" |
233 | 513 |
|
1948
33eb423a6fd3
only act when no mouse-button is pressed
Claus Gittinger <cg@exept.de>
parents:
1909
diff
changeset
|
514 |
state == 0 ifTrue:[ |
33eb423a6fd3
only act when no mouse-button is pressed
Claus Gittinger <cg@exept.de>
parents:
1909
diff
changeset
|
515 |
self handleMouseIn:aView x:x y:y. |
33eb423a6fd3
only act when no mouse-button is pressed
Claus Gittinger <cg@exept.de>
parents:
1909
diff
changeset
|
516 |
]. |
1657 | 517 |
^ false |
138 | 518 |
! |
519 |
||
2371
4ab6c8c7bc03
flush enqueued help-activation event when we leave a view
Claus Gittinger <cg@exept.de>
parents:
2130
diff
changeset
|
520 |
pointerLeave:state view:aView |
233 | 521 |
"handle pointer leaving a view; hide help text" |
522 |
||
2371
4ab6c8c7bc03
flush enqueued help-activation event when we leave a view
Claus Gittinger <cg@exept.de>
parents:
2130
diff
changeset
|
523 |
|sensor| |
4ab6c8c7bc03
flush enqueued help-activation event when we leave a view
Claus Gittinger <cg@exept.de>
parents:
2130
diff
changeset
|
524 |
|
4ab6c8c7bc03
flush enqueued help-activation event when we leave a view
Claus Gittinger <cg@exept.de>
parents:
2130
diff
changeset
|
525 |
sensor := aView sensor. |
4ab6c8c7bc03
flush enqueued help-activation event when we leave a view
Claus Gittinger <cg@exept.de>
parents:
2130
diff
changeset
|
526 |
sensor notNil ifTrue:[ |
4ab6c8c7bc03
flush enqueued help-activation event when we leave a view
Claus Gittinger <cg@exept.de>
parents:
2130
diff
changeset
|
527 |
sensor flushEventsFor:self withType:#initiateHelpFor:at:. |
4ab6c8c7bc03
flush enqueued help-activation event when we leave a view
Claus Gittinger <cg@exept.de>
parents:
2130
diff
changeset
|
528 |
]. |
1535
a9fcabccabb3
separated into flyByHelp and activeHelp
Claus Gittinger <cg@exept.de>
parents:
1502
diff
changeset
|
529 |
self hideHelpIgnoringErrors. |
138 | 530 |
^ false |
2914
18cff2d0daff
change to only expect one single method to be (re)defined:
Claus Gittinger <cg@exept.de>
parents:
2879
diff
changeset
|
531 |
! |
18cff2d0daff
change to only expect one single method to be (re)defined:
Claus Gittinger <cg@exept.de>
parents:
2879
diff
changeset
|
532 |
|
18cff2d0daff
change to only expect one single method to be (re)defined:
Claus Gittinger <cg@exept.de>
parents:
2879
diff
changeset
|
533 |
processEvent:ev |
4134 | 534 |
DebuggingEvents == true ifTrue:[ |
3507 | 535 |
'event: ' infoPrint. ev class nameWithoutPrefix infoPrint. |
536 |
' view:' infoPrint. ev view infoPrintCR. |
|
3292 | 537 |
]. |
2914
18cff2d0daff
change to only expect one single method to be (re)defined:
Claus Gittinger <cg@exept.de>
parents:
2879
diff
changeset
|
538 |
(ev isPointerEnterLeaveEvent |
18cff2d0daff
change to only expect one single method to be (re)defined:
Claus Gittinger <cg@exept.de>
parents:
2879
diff
changeset
|
539 |
or:[ ev isButtonEvent |
18cff2d0daff
change to only expect one single method to be (re)defined:
Claus Gittinger <cg@exept.de>
parents:
2879
diff
changeset
|
540 |
or:[ ev isKeyEvent ]]) ifTrue:[ |
18cff2d0daff
change to only expect one single method to be (re)defined:
Claus Gittinger <cg@exept.de>
parents:
2879
diff
changeset
|
541 |
^ ev dispatchWithViewArgumentTo:self |
18cff2d0daff
change to only expect one single method to be (re)defined:
Claus Gittinger <cg@exept.de>
parents:
2879
diff
changeset
|
542 |
]. |
18cff2d0daff
change to only expect one single method to be (re)defined:
Claus Gittinger <cg@exept.de>
parents:
2879
diff
changeset
|
543 |
^ false |
18cff2d0daff
change to only expect one single method to be (re)defined:
Claus Gittinger <cg@exept.de>
parents:
2879
diff
changeset
|
544 |
|
18cff2d0daff
change to only expect one single method to be (re)defined:
Claus Gittinger <cg@exept.de>
parents:
2879
diff
changeset
|
545 |
"Created: / 29-06-2011 / 18:22:43 / cg" |
4134 | 546 |
"Modified: / 19-06-2018 / 12:53:28 / Claus Gittinger" |
59 | 547 |
! ! |
548 |
||
2391 | 549 |
!ActiveHelp methodsFor:'help texts'! |
59 | 550 |
|
2130 | 551 |
helpTextFor:aView at:aDevicePointOrNil |
233 | 552 |
"retrieve helptext for aView as a string; |
3790 | 553 |
walk along the view's superView chain, |
100 | 554 |
asking models and views encountered while walking. |
555 |
The first one who understands and returns a nonNil answer to the |
|
233 | 556 |
#helpTextFor:at: or #helpTextFor: message ends this search and the |
100 | 557 |
returned string is returned." |
558 |
||
2130 | 559 |
|model app1 app2 text v sv topView domainPointOrNil| |
59 | 560 |
|
2130 | 561 |
aView transformation notNil ifTrue:[ |
562 |
domainPointOrNil := aView transformation applyInverseTo:aDevicePointOrNil. |
|
563 |
] ifFalse:[ |
|
564 |
domainPointOrNil := aDevicePointOrNil. |
|
565 |
]. |
|
566 |
||
3665 | 567 |
"/ done below |
568 |
"/ text := self helpTextFromView:aView at:domainPointOrNil. |
|
569 |
"/ text notNil ifTrue:[ ^ text ]. |
|
2076 | 570 |
|
1549
1b5274878f87
care for oldStyle views (StdSysViews)
Claus Gittinger <cg@exept.de>
parents:
1543
diff
changeset
|
571 |
((aView respondsTo:#application) |
1b5274878f87
care for oldStyle views (StdSysViews)
Claus Gittinger <cg@exept.de>
parents:
1543
diff
changeset
|
572 |
and:[ (app1 := aView application) notNil ]) ifTrue:[ |
2130 | 573 |
text := self helpTextFromModel:app1 view:aView at:domainPointOrNil. |
1549
1b5274878f87
care for oldStyle views (StdSysViews)
Claus Gittinger <cg@exept.de>
parents:
1543
diff
changeset
|
574 |
text notNil ifTrue:[ ^ text ]. |
1b5274878f87
care for oldStyle views (StdSysViews)
Claus Gittinger <cg@exept.de>
parents:
1543
diff
changeset
|
575 |
] ifFalse:[ |
1b5274878f87
care for oldStyle views (StdSysViews)
Claus Gittinger <cg@exept.de>
parents:
1543
diff
changeset
|
576 |
"/ old style (i.e. StandardSystemView ...) |
1b5274878f87
care for oldStyle views (StdSysViews)
Claus Gittinger <cg@exept.de>
parents:
1543
diff
changeset
|
577 |
topView := aView topView. |
3664 | 578 |
text := self helpTextFromModel:topView view:aView at:domainPointOrNil. |
579 |
text notNil ifTrue:[ ^ text ]. |
|
59 | 580 |
]. |
1549
1b5274878f87
care for oldStyle views (StdSysViews)
Claus Gittinger <cg@exept.de>
parents:
1543
diff
changeset
|
581 |
|
1535
a9fcabccabb3
separated into flyByHelp and activeHelp
Claus Gittinger <cg@exept.de>
parents:
1502
diff
changeset
|
582 |
(model := aView model) notNil ifTrue:[ |
a9fcabccabb3
separated into flyByHelp and activeHelp
Claus Gittinger <cg@exept.de>
parents:
1502
diff
changeset
|
583 |
model ~~ app1 ifTrue:[ |
2130 | 584 |
text := self helpTextFromModel:model view:aView at:domainPointOrNil. |
1535
a9fcabccabb3
separated into flyByHelp and activeHelp
Claus Gittinger <cg@exept.de>
parents:
1502
diff
changeset
|
585 |
text notNil ifTrue:[ ^ text ]. |
1502 | 586 |
]. |
1011
53514f2c18a7
also ask for helpTextAt:, when a motionEvent arrives.
Claus Gittinger <cg@exept.de>
parents:
728
diff
changeset
|
587 |
]. |
2130 | 588 |
text := self helpTextFromView:aView at:domainPointOrNil. |
3664 | 589 |
text notNil ifTrue:[ |
590 |
^ text |
|
591 |
]. |
|
59 | 592 |
|
593 |
"walk up the chain - maybe someone knows about its subview ..." |
|
594 |
v := aView. |
|
1502 | 595 |
[ |
596 |
(sv := v container) notNil |
|
597 |
] whileTrue:[ |
|
1535
a9fcabccabb3
separated into flyByHelp and activeHelp
Claus Gittinger <cg@exept.de>
parents:
1502
diff
changeset
|
598 |
(model := sv model) notNil ifTrue:[ |
2130 | 599 |
text := self helpTextFromModel:model view:aView at:domainPointOrNil. |
1502 | 600 |
text notNil ifTrue:[ ^ text ]. |
1535
a9fcabccabb3
separated into flyByHelp and activeHelp
Claus Gittinger <cg@exept.de>
parents:
1502
diff
changeset
|
601 |
]. |
3665 | 602 |
"/ maybe the topView knows something about a higher-up widget... |
603 |
text := self helpTextFromModel:topView view:sv at:domainPointOrNil. |
|
604 |
text notNil ifTrue:[ ^ text ]. |
|
605 |
||
1535
a9fcabccabb3
separated into flyByHelp and activeHelp
Claus Gittinger <cg@exept.de>
parents:
1502
diff
changeset
|
606 |
text := self helpTextFromView:sv at:nil. |
a9fcabccabb3
separated into flyByHelp and activeHelp
Claus Gittinger <cg@exept.de>
parents:
1502
diff
changeset
|
607 |
text notNil ifTrue:[ ^ text ]. |
a9fcabccabb3
separated into flyByHelp and activeHelp
Claus Gittinger <cg@exept.de>
parents:
1502
diff
changeset
|
608 |
v := sv |
602 | 609 |
]. |
1535
a9fcabccabb3
separated into flyByHelp and activeHelp
Claus Gittinger <cg@exept.de>
parents:
1502
diff
changeset
|
610 |
|
4038 | 611 |
v notNil ifTrue:[ |
612 |
((v respondsTo:#application) and:[(app2 := v application) notNil]) ifTrue:[ |
|
1535
a9fcabccabb3
separated into flyByHelp and activeHelp
Claus Gittinger <cg@exept.de>
parents:
1502
diff
changeset
|
613 |
(app2 ~~ app1) ifTrue:[ |
2130 | 614 |
text := self helpTextFromModel:app2 view:aView at:domainPointOrNil. |
1535
a9fcabccabb3
separated into flyByHelp and activeHelp
Claus Gittinger <cg@exept.de>
parents:
1502
diff
changeset
|
615 |
text notNil ifTrue:[ ^ text ]. |
a9fcabccabb3
separated into flyByHelp and activeHelp
Claus Gittinger <cg@exept.de>
parents:
1502
diff
changeset
|
616 |
] |
4038 | 617 |
]. |
618 |
((v respondsTo:#model) and:[(model := v model) notNil]) ifTrue:[ |
|
2130 | 619 |
text := self helpTextFromModel:model view:aView at:domainPointOrNil. |
1502 | 620 |
text notNil ifTrue:[ ^ text ]. |
4038 | 621 |
]. |
100 | 622 |
]. |
59 | 623 |
^ nil |
100 | 624 |
|
4038 | 625 |
"Modified: / 31-08-1995 / 20:38:00 / claus" |
626 |
"Modified: / 28-07-1998 / 01:47:27 / cg" |
|
627 |
"Modified: / 09-01-2018 / 16:46:37 / stefan" |
|
100 | 628 |
! |
629 |
||
3664 | 630 |
helpTextFromModel:aModelOrTopView view:aView at:aPointOrNil |
1502 | 631 |
"helper: ask aModel for its helpText." |
632 |
||
3664 | 633 |
|text| |
1502 | 634 |
|
1535
a9fcabccabb3
separated into flyByHelp and activeHelp
Claus Gittinger <cg@exept.de>
parents:
1502
diff
changeset
|
635 |
aPointOrNil notNil ifTrue:[ |
3664 | 636 |
(aModelOrTopView respondsTo:#helpTextFor:at:) ifTrue:[ |
637 |
text := aModelOrTopView helpTextFor:aView at:aPointOrNil. |
|
2076 | 638 |
text notNil ifTrue:[^ text]. |
1535
a9fcabccabb3
separated into flyByHelp and activeHelp
Claus Gittinger <cg@exept.de>
parents:
1502
diff
changeset
|
639 |
]. |
a9fcabccabb3
separated into flyByHelp and activeHelp
Claus Gittinger <cg@exept.de>
parents:
1502
diff
changeset
|
640 |
]. |
3664 | 641 |
(aModelOrTopView respondsTo:#helpTextFor:) ifTrue:[ |
642 |
text := aModelOrTopView helpTextFor:aView. |
|
643 |
text notNil ifTrue:[^ text]. |
|
1502 | 644 |
]. |
1535
a9fcabccabb3
separated into flyByHelp and activeHelp
Claus Gittinger <cg@exept.de>
parents:
1502
diff
changeset
|
645 |
^ text |
a9fcabccabb3
separated into flyByHelp and activeHelp
Claus Gittinger <cg@exept.de>
parents:
1502
diff
changeset
|
646 |
! |
a9fcabccabb3
separated into flyByHelp and activeHelp
Claus Gittinger <cg@exept.de>
parents:
1502
diff
changeset
|
647 |
|
a9fcabccabb3
separated into flyByHelp and activeHelp
Claus Gittinger <cg@exept.de>
parents:
1502
diff
changeset
|
648 |
helpTextFromView:aView at:aPointOrNil |
a9fcabccabb3
separated into flyByHelp and activeHelp
Claus Gittinger <cg@exept.de>
parents:
1502
diff
changeset
|
649 |
"helper: ask aView for its helpText." |
a9fcabccabb3
separated into flyByHelp and activeHelp
Claus Gittinger <cg@exept.de>
parents:
1502
diff
changeset
|
650 |
|
a9fcabccabb3
separated into flyByHelp and activeHelp
Claus Gittinger <cg@exept.de>
parents:
1502
diff
changeset
|
651 |
|text| |
a9fcabccabb3
separated into flyByHelp and activeHelp
Claus Gittinger <cg@exept.de>
parents:
1502
diff
changeset
|
652 |
|
a9fcabccabb3
separated into flyByHelp and activeHelp
Claus Gittinger <cg@exept.de>
parents:
1502
diff
changeset
|
653 |
aPointOrNil notNil ifTrue:[ |
a9fcabccabb3
separated into flyByHelp and activeHelp
Claus Gittinger <cg@exept.de>
parents:
1502
diff
changeset
|
654 |
(aView respondsTo:#helpTextAt:) ifTrue:[ |
a9fcabccabb3
separated into flyByHelp and activeHelp
Claus Gittinger <cg@exept.de>
parents:
1502
diff
changeset
|
655 |
text := aView helpTextAt:aPointOrNil. |
a9fcabccabb3
separated into flyByHelp and activeHelp
Claus Gittinger <cg@exept.de>
parents:
1502
diff
changeset
|
656 |
]. |
1502 | 657 |
]. |
1535
a9fcabccabb3
separated into flyByHelp and activeHelp
Claus Gittinger <cg@exept.de>
parents:
1502
diff
changeset
|
658 |
text isNil ifTrue:[ |
a9fcabccabb3
separated into flyByHelp and activeHelp
Claus Gittinger <cg@exept.de>
parents:
1502
diff
changeset
|
659 |
(aView respondsTo:#helpText) ifTrue:[ |
a9fcabccabb3
separated into flyByHelp and activeHelp
Claus Gittinger <cg@exept.de>
parents:
1502
diff
changeset
|
660 |
text := aView helpText. |
a9fcabccabb3
separated into flyByHelp and activeHelp
Claus Gittinger <cg@exept.de>
parents:
1502
diff
changeset
|
661 |
]. |
a9fcabccabb3
separated into flyByHelp and activeHelp
Claus Gittinger <cg@exept.de>
parents:
1502
diff
changeset
|
662 |
]. |
a9fcabccabb3
separated into flyByHelp and activeHelp
Claus Gittinger <cg@exept.de>
parents:
1502
diff
changeset
|
663 |
^ text. |
2391 | 664 |
! ! |
665 |
||
666 |
!ActiveHelp methodsFor:'private'! |
|
1502 | 667 |
|
138 | 668 |
hideIfPointerLeft:aView |
233 | 669 |
"hide help, if the pointer is not in aView" |
138 | 670 |
! |
671 |
||
719
17fba5c2a167
allow applications to start activeHelp for
Claus Gittinger <cg@exept.de>
parents:
696
diff
changeset
|
672 |
interestedIn:aView |
1033
3a56ba930052
care for nil view passed to #interestedIn.
Claus Gittinger <cg@exept.de>
parents:
1019
diff
changeset
|
673 |
"return true, if I am interested in aView (either listeningForAll, |
3a56ba930052
care for nil view passed to #interestedIn.
Claus Gittinger <cg@exept.de>
parents:
1019
diff
changeset
|
674 |
or in my list of apps)" |
719
17fba5c2a167
allow applications to start activeHelp for
Claus Gittinger <cg@exept.de>
parents:
696
diff
changeset
|
675 |
|
3347
f314814a3105
do not show help for inactive (background) views.
Claus Gittinger <cg@exept.de>
parents:
3333
diff
changeset
|
676 |
|app aViewsTopView device deviceFocusView| |
f314814a3105
do not show help for inactive (background) views.
Claus Gittinger <cg@exept.de>
parents:
3333
diff
changeset
|
677 |
|
f314814a3105
do not show help for inactive (background) views.
Claus Gittinger <cg@exept.de>
parents:
3333
diff
changeset
|
678 |
aView isNil ifTrue:[ |
f314814a3105
do not show help for inactive (background) views.
Claus Gittinger <cg@exept.de>
parents:
3333
diff
changeset
|
679 |
Debugging ifTrue:['nil view' infoPrintCR]. |
f314814a3105
do not show help for inactive (background) views.
Claus Gittinger <cg@exept.de>
parents:
3333
diff
changeset
|
680 |
^ false |
f314814a3105
do not show help for inactive (background) views.
Claus Gittinger <cg@exept.de>
parents:
3333
diff
changeset
|
681 |
]. |
f314814a3105
do not show help for inactive (background) views.
Claus Gittinger <cg@exept.de>
parents:
3333
diff
changeset
|
682 |
|
f314814a3105
do not show help for inactive (background) views.
Claus Gittinger <cg@exept.de>
parents:
3333
diff
changeset
|
683 |
"/ applicationsOrTopViewsWithHelp isEmptyOrNil ifTrue:[ |
f314814a3105
do not show help for inactive (background) views.
Claus Gittinger <cg@exept.de>
parents:
3333
diff
changeset
|
684 |
"/ Debugging ifTrue:['no apps' infoPrintCR]. |
f314814a3105
do not show help for inactive (background) views.
Claus Gittinger <cg@exept.de>
parents:
3333
diff
changeset
|
685 |
"/ ^ false |
f314814a3105
do not show help for inactive (background) views.
Claus Gittinger <cg@exept.de>
parents:
3333
diff
changeset
|
686 |
"/ ]. |
719
17fba5c2a167
allow applications to start activeHelp for
Claus Gittinger <cg@exept.de>
parents:
696
diff
changeset
|
687 |
|
3347
f314814a3105
do not show help for inactive (background) views.
Claus Gittinger <cg@exept.de>
parents:
3333
diff
changeset
|
688 |
aViewsTopView := aView topView. |
f314814a3105
do not show help for inactive (background) views.
Claus Gittinger <cg@exept.de>
parents:
3333
diff
changeset
|
689 |
|
3348 | 690 |
UserPreferences current onlyShowTooltipsForActiveWindow ifTrue:[ |
4134 | 691 |
aViewsTopView isActive ifFalse:[ |
692 |
Debugging ifTrue:[ |
|
693 |
|graphicsDevice focusVw| |
|
694 |
||
695 |
'topview inactive' infoPrintCR. |
|
696 |
graphicsDevice := aViewsTopView graphicsDevice. |
|
697 |
graphicsDevice notNil ifTrue:[ |
|
698 |
focusVw := graphicsDevice focusView. |
|
699 |
'focusView: ' infoPrint. focusVw infoPrintCR. |
|
700 |
focusVw notNil ifTrue:[ |
|
701 |
'wGroup: ' infoPrint. focusVw windowGroup infoPrintCR. |
|
702 |
] |
|
703 |
] |
|
704 |
]. |
|
3417 | 705 |
^ false |
706 |
]. |
|
707 |
||
3348 | 708 |
"/ if none of the view's components has focus... |
709 |
(device := aViewsTopView graphicsDevice) notNil ifTrue:[ |
|
710 |
(deviceFocusView := device focusView) notNil ifTrue:[ |
|
711 |
deviceFocusView topView ~~ aViewsTopView ifTrue:[ |
|
712 |
"/ 'for inactive ' infoPrint. aView infoPrintCR. |
|
713 |
Debugging ifTrue:['inactive topView' infoPrintCR]. |
|
714 |
^ false |
|
715 |
]. |
|
3347
f314814a3105
do not show help for inactive (background) views.
Claus Gittinger <cg@exept.de>
parents:
3333
diff
changeset
|
716 |
]. |
f314814a3105
do not show help for inactive (background) views.
Claus Gittinger <cg@exept.de>
parents:
3333
diff
changeset
|
717 |
]. |
f314814a3105
do not show help for inactive (background) views.
Claus Gittinger <cg@exept.de>
parents:
3333
diff
changeset
|
718 |
]. |
1535
a9fcabccabb3
separated into flyByHelp and activeHelp
Claus Gittinger <cg@exept.de>
parents:
1502
diff
changeset
|
719 |
|
719
17fba5c2a167
allow applications to start activeHelp for
Claus Gittinger <cg@exept.de>
parents:
696
diff
changeset
|
720 |
listeningForAll == true ifTrue:[^ true]. |
1033
3a56ba930052
care for nil view passed to #interestedIn.
Claus Gittinger <cg@exept.de>
parents:
1019
diff
changeset
|
721 |
|
3395 | 722 |
applicationsOrTopViewsWithHelp isNil ifTrue:[ |
723 |
applicationsOrTopViewsWithHelp := WeakIdentitySet new. |
|
724 |
]. |
|
1106 | 725 |
(applicationsOrTopViewsWithHelp includesIdentical:aViewsTopView) ifTrue:[^ true]. |
726 |
app := aViewsTopView application. |
|
4134 | 727 |
app isNil ifTrue:[ |
728 |
Debugging ifTrue:['no app' infoPrintCR]. |
|
729 |
^ false. |
|
719
17fba5c2a167
allow applications to start activeHelp for
Claus Gittinger <cg@exept.de>
parents:
696
diff
changeset
|
730 |
]. |
4134 | 731 |
(applicationsOrTopViewsWithHelp includesIdentical:app) ifTrue:[^ true]. |
732 |
Debugging ifTrue:['not in list of apps I am interested in' infoPrintCR]. |
|
719
17fba5c2a167
allow applications to start activeHelp for
Claus Gittinger <cg@exept.de>
parents:
696
diff
changeset
|
733 |
^ false |
17fba5c2a167
allow applications to start activeHelp for
Claus Gittinger <cg@exept.de>
parents:
696
diff
changeset
|
734 |
|
4134 | 735 |
"Created: / 26-10-1997 / 23:28:52 / cg" |
736 |
"Modified: / 08-08-1998 / 13:36:19 / cg" |
|
737 |
"Modified: / 19-06-2018 / 12:58:39 / Claus Gittinger" |
|
2782 | 738 |
! |
739 |
||
740 |
targetViewInitiatesHelpViaSensor |
|
741 |
"true if the target view is asked to show the help via the sensor; |
|
742 |
false, if I do it myself synchronously." |
|
743 |
||
744 |
^ true |
|
59 | 745 |
! ! |
746 |
||
2391 | 747 |
!ActiveHelp methodsFor:'queries'! |
748 |
||
749 |
delayTime |
|
750 |
^ self class delayTime |
|
751 |
! |
|
752 |
||
753 |
showTime |
|
3333 | 754 |
"how long shall the help be shown; |
755 |
0 means: forever (until user moves the mouse); |
|
756 |
>0 means that number of seconds" |
|
757 |
||
2391 | 758 |
^ self class showTime |
759 |
! ! |
|
760 |
||
1768 | 761 |
!ActiveHelp methodsFor:'show & hide help'! |
59 | 762 |
|
763 |
hideHelp |
|
1535
a9fcabccabb3
separated into flyByHelp and activeHelp
Claus Gittinger <cg@exept.de>
parents:
1502
diff
changeset
|
764 |
"hide the help text - nothing done here" |
a9fcabccabb3
separated into flyByHelp and activeHelp
Claus Gittinger <cg@exept.de>
parents:
1502
diff
changeset
|
765 |
! |
a9fcabccabb3
separated into flyByHelp and activeHelp
Claus Gittinger <cg@exept.de>
parents:
1502
diff
changeset
|
766 |
|
a9fcabccabb3
separated into flyByHelp and activeHelp
Claus Gittinger <cg@exept.de>
parents:
1502
diff
changeset
|
767 |
hideHelpIgnoringErrors |
233 | 768 |
"hide the help text" |
769 |
||
1713
bc8a1d16e60f
Convert Object>>errorSignal -> Error
Stefan Vogel <sv@exept.de>
parents:
1657
diff
changeset
|
770 |
Error handle:[:ex | |
1535
a9fcabccabb3
separated into flyByHelp and activeHelp
Claus Gittinger <cg@exept.de>
parents:
1502
diff
changeset
|
771 |
ex description infoPrintCR. |
a9fcabccabb3
separated into flyByHelp and activeHelp
Claus Gittinger <cg@exept.de>
parents:
1502
diff
changeset
|
772 |
ex return |
a9fcabccabb3
separated into flyByHelp and activeHelp
Claus Gittinger <cg@exept.de>
parents:
1502
diff
changeset
|
773 |
] do:[ |
a9fcabccabb3
separated into flyByHelp and activeHelp
Claus Gittinger <cg@exept.de>
parents:
1502
diff
changeset
|
774 |
self hideHelp. |
59 | 775 |
]. |
776 |
! |
|
777 |
||
1535
a9fcabccabb3
separated into flyByHelp and activeHelp
Claus Gittinger <cg@exept.de>
parents:
1502
diff
changeset
|
778 |
initiateHelpFor:aView at:aPointOrNil |
634 | 779 |
"ask aView for helpText, passing x/y coordinates; |
780 |
start a timeout process to display this helpText after some delay; |
|
781 |
Normally used internally, but can also be used by widgets to force |
|
782 |
re-negotiation of the displayed helpText |
|
783 |
(for example in a menu, when the selection changes)" |
|
784 |
||
4061 | 785 |
"/ ActiveHelp stop |
4060 | 786 |
self class isActive ifFalse:[^ self]. |
787 |
||
4058 | 788 |
"/ in standalone apps, it is better to simply not show the help |
789 |
Error,BreakPointInterrupt handle:[:ex | |
|
790 |
Smalltalk isStandAloneApp ifFalse:[ex reject]. |
|
791 |
] do:[ |
|
792 |
self initiateHelpFor:aView at:aPointOrNil now:false |
|
793 |
]. |
|
637
8be64da7d932
views own help display is done immediately.
Claus Gittinger <cg@exept.de>
parents:
636
diff
changeset
|
794 |
|
8be64da7d932
views own help display is done immediately.
Claus Gittinger <cg@exept.de>
parents:
636
diff
changeset
|
795 |
"Modified: 28.6.1997 / 14:45:57 / cg" |
8be64da7d932
views own help display is done immediately.
Claus Gittinger <cg@exept.de>
parents:
636
diff
changeset
|
796 |
! |
8be64da7d932
views own help display is done immediately.
Claus Gittinger <cg@exept.de>
parents:
636
diff
changeset
|
797 |
|
1535
a9fcabccabb3
separated into flyByHelp and activeHelp
Claus Gittinger <cg@exept.de>
parents:
1502
diff
changeset
|
798 |
initiateHelpFor:aView at:aPointOrNil now:showItNow |
637
8be64da7d932
views own help display is done immediately.
Claus Gittinger <cg@exept.de>
parents:
636
diff
changeset
|
799 |
"ask aView for helpText, passing x/y coordinates; |
8be64da7d932
views own help display is done immediately.
Claus Gittinger <cg@exept.de>
parents:
636
diff
changeset
|
800 |
start a timeout process to display this helpText after some delay; |
8be64da7d932
views own help display is done immediately.
Claus Gittinger <cg@exept.de>
parents:
636
diff
changeset
|
801 |
Normally used internally, but can also be used by widgets to force |
8be64da7d932
views own help display is done immediately.
Claus Gittinger <cg@exept.de>
parents:
636
diff
changeset
|
802 |
re-negotiation of the displayed helpText |
8be64da7d932
views own help display is done immediately.
Claus Gittinger <cg@exept.de>
parents:
636
diff
changeset
|
803 |
(for example in a menu, when the selection changes)" |
8be64da7d932
views own help display is done immediately.
Claus Gittinger <cg@exept.de>
parents:
636
diff
changeset
|
804 |
|
696 | 805 |
|text top app| |
634 | 806 |
|
1143 | 807 |
(self interestedIn:aView) ifFalse:[ |
808 |
^ self |
|
809 |
]. |
|
1535
a9fcabccabb3
separated into flyByHelp and activeHelp
Claus Gittinger <cg@exept.de>
parents:
1502
diff
changeset
|
810 |
|
a9fcabccabb3
separated into flyByHelp and activeHelp
Claus Gittinger <cg@exept.de>
parents:
1502
diff
changeset
|
811 |
text := self helpTextFor:aView at:aPointOrNil. |
637
8be64da7d932
views own help display is done immediately.
Claus Gittinger <cg@exept.de>
parents:
636
diff
changeset
|
812 |
lastHelpText = text ifTrue:[ |
8be64da7d932
views own help display is done immediately.
Claus Gittinger <cg@exept.de>
parents:
636
diff
changeset
|
813 |
^ self |
8be64da7d932
views own help display is done immediately.
Claus Gittinger <cg@exept.de>
parents:
636
diff
changeset
|
814 |
]. |
8be64da7d932
views own help display is done immediately.
Claus Gittinger <cg@exept.de>
parents:
636
diff
changeset
|
815 |
|
1535
a9fcabccabb3
separated into flyByHelp and activeHelp
Claus Gittinger <cg@exept.de>
parents:
1502
diff
changeset
|
816 |
"/ let application show the help |
728 | 817 |
"/ (i.e. in its own information area) |
1535
a9fcabccabb3
separated into flyByHelp and activeHelp
Claus Gittinger <cg@exept.de>
parents:
1502
diff
changeset
|
818 |
"/ nil-text is also passed down, to give it a chance |
728 | 819 |
"/ to clean its infoDisplay. |
637
8be64da7d932
views own help display is done immediately.
Claus Gittinger <cg@exept.de>
parents:
636
diff
changeset
|
820 |
|
728 | 821 |
top := aView topView. |
822 |
(app := aView application) notNil ifTrue:[ |
|
1019
862f095da4ac
#showHelp:for: renamed to #showActiveHelp:for:
Claus Gittinger <cg@exept.de>
parents:
1011
diff
changeset
|
823 |
(app showActiveHelp:text for:aView) ifTrue:[ |
728 | 824 |
lastHelpText := text. |
632
844b1aaf3eeb
provide access to the current activeHelp instance
Claus Gittinger <cg@exept.de>
parents:
602
diff
changeset
|
825 |
] |
844b1aaf3eeb
provide access to the current activeHelp instance
Claus Gittinger <cg@exept.de>
parents:
602
diff
changeset
|
826 |
]. |
1535
a9fcabccabb3
separated into flyByHelp and activeHelp
Claus Gittinger <cg@exept.de>
parents:
1502
diff
changeset
|
827 |
! |
59 | 828 |
|
1535
a9fcabccabb3
separated into flyByHelp and activeHelp
Claus Gittinger <cg@exept.de>
parents:
1502
diff
changeset
|
829 |
stopHelpDisplayProcess |
59 | 830 |
! ! |
831 |
||
719
17fba5c2a167
allow applications to start activeHelp for
Claus Gittinger <cg@exept.de>
parents:
696
diff
changeset
|
832 |
!ActiveHelp methodsFor:'start & stop'! |
17fba5c2a167
allow applications to start activeHelp for
Claus Gittinger <cg@exept.de>
parents:
696
diff
changeset
|
833 |
|
17fba5c2a167
allow applications to start activeHelp for
Claus Gittinger <cg@exept.de>
parents:
696
diff
changeset
|
834 |
listenFor:anAppOrTopView |
17fba5c2a167
allow applications to start activeHelp for
Claus Gittinger <cg@exept.de>
parents:
696
diff
changeset
|
835 |
"start listening" |
17fba5c2a167
allow applications to start activeHelp for
Claus Gittinger <cg@exept.de>
parents:
696
diff
changeset
|
836 |
|
17fba5c2a167
allow applications to start activeHelp for
Claus Gittinger <cg@exept.de>
parents:
696
diff
changeset
|
837 |
applicationsOrTopViewsWithHelp isNil ifTrue:[ |
17fba5c2a167
allow applications to start activeHelp for
Claus Gittinger <cg@exept.de>
parents:
696
diff
changeset
|
838 |
applicationsOrTopViewsWithHelp := WeakIdentitySet new. |
17fba5c2a167
allow applications to start activeHelp for
Claus Gittinger <cg@exept.de>
parents:
696
diff
changeset
|
839 |
]. |
17fba5c2a167
allow applications to start activeHelp for
Claus Gittinger <cg@exept.de>
parents:
696
diff
changeset
|
840 |
applicationsOrTopViewsWithHelp add:anAppOrTopView. |
17fba5c2a167
allow applications to start activeHelp for
Claus Gittinger <cg@exept.de>
parents:
696
diff
changeset
|
841 |
super listen. |
639 | 842 |
|
719
17fba5c2a167
allow applications to start activeHelp for
Claus Gittinger <cg@exept.de>
parents:
696
diff
changeset
|
843 |
"Created: / 26.10.1997 / 23:20:47 / cg" |
17fba5c2a167
allow applications to start activeHelp for
Claus Gittinger <cg@exept.de>
parents:
696
diff
changeset
|
844 |
"Modified: / 26.10.1997 / 23:21:10 / cg" |
17fba5c2a167
allow applications to start activeHelp for
Claus Gittinger <cg@exept.de>
parents:
696
diff
changeset
|
845 |
! |
17fba5c2a167
allow applications to start activeHelp for
Claus Gittinger <cg@exept.de>
parents:
696
diff
changeset
|
846 |
|
17fba5c2a167
allow applications to start activeHelp for
Claus Gittinger <cg@exept.de>
parents:
696
diff
changeset
|
847 |
listenForAll |
17fba5c2a167
allow applications to start activeHelp for
Claus Gittinger <cg@exept.de>
parents:
696
diff
changeset
|
848 |
"start listening" |
17fba5c2a167
allow applications to start activeHelp for
Claus Gittinger <cg@exept.de>
parents:
696
diff
changeset
|
849 |
|
17fba5c2a167
allow applications to start activeHelp for
Claus Gittinger <cg@exept.de>
parents:
696
diff
changeset
|
850 |
listeningForAll := true. |
17fba5c2a167
allow applications to start activeHelp for
Claus Gittinger <cg@exept.de>
parents:
696
diff
changeset
|
851 |
super listen. |
17fba5c2a167
allow applications to start activeHelp for
Claus Gittinger <cg@exept.de>
parents:
696
diff
changeset
|
852 |
|
17fba5c2a167
allow applications to start activeHelp for
Claus Gittinger <cg@exept.de>
parents:
696
diff
changeset
|
853 |
"Modified: / 28.6.1997 / 15:07:02 / cg" |
17fba5c2a167
allow applications to start activeHelp for
Claus Gittinger <cg@exept.de>
parents:
696
diff
changeset
|
854 |
"Created: / 26.10.1997 / 23:19:30 / cg" |
17fba5c2a167
allow applications to start activeHelp for
Claus Gittinger <cg@exept.de>
parents:
696
diff
changeset
|
855 |
! |
17fba5c2a167
allow applications to start activeHelp for
Claus Gittinger <cg@exept.de>
parents:
696
diff
changeset
|
856 |
|
2391 | 857 |
start |
858 |
self listenForAll |
|
859 |
! |
|
860 |
||
861 |
stop |
|
862 |
self unlistenAll |
|
863 |
! |
|
864 |
||
719
17fba5c2a167
allow applications to start activeHelp for
Claus Gittinger <cg@exept.de>
parents:
696
diff
changeset
|
865 |
unlistenAll |
639 | 866 |
"stop listening" |
867 |
||
868 |
self hideHelp. |
|
1535
a9fcabccabb3
separated into flyByHelp and activeHelp
Claus Gittinger <cg@exept.de>
parents:
1502
diff
changeset
|
869 |
|
719
17fba5c2a167
allow applications to start activeHelp for
Claus Gittinger <cg@exept.de>
parents:
696
diff
changeset
|
870 |
listeningForAll := false. |
17fba5c2a167
allow applications to start activeHelp for
Claus Gittinger <cg@exept.de>
parents:
696
diff
changeset
|
871 |
applicationsOrTopViewsWithHelp size == 0 ifTrue:[ |
1535
a9fcabccabb3
separated into flyByHelp and activeHelp
Claus Gittinger <cg@exept.de>
parents:
1502
diff
changeset
|
872 |
self unlisten. |
719
17fba5c2a167
allow applications to start activeHelp for
Claus Gittinger <cg@exept.de>
parents:
696
diff
changeset
|
873 |
] |
17fba5c2a167
allow applications to start activeHelp for
Claus Gittinger <cg@exept.de>
parents:
696
diff
changeset
|
874 |
|
17fba5c2a167
allow applications to start activeHelp for
Claus Gittinger <cg@exept.de>
parents:
696
diff
changeset
|
875 |
"Created: / 26.10.1997 / 23:14:17 / cg" |
17fba5c2a167
allow applications to start activeHelp for
Claus Gittinger <cg@exept.de>
parents:
696
diff
changeset
|
876 |
"Modified: / 26.10.1997 / 23:23:04 / cg" |
17fba5c2a167
allow applications to start activeHelp for
Claus Gittinger <cg@exept.de>
parents:
696
diff
changeset
|
877 |
! |
639 | 878 |
|
719
17fba5c2a167
allow applications to start activeHelp for
Claus Gittinger <cg@exept.de>
parents:
696
diff
changeset
|
879 |
unlistenFor:anApp |
17fba5c2a167
allow applications to start activeHelp for
Claus Gittinger <cg@exept.de>
parents:
696
diff
changeset
|
880 |
"stop listening for an app" |
17fba5c2a167
allow applications to start activeHelp for
Claus Gittinger <cg@exept.de>
parents:
696
diff
changeset
|
881 |
|
17fba5c2a167
allow applications to start activeHelp for
Claus Gittinger <cg@exept.de>
parents:
696
diff
changeset
|
882 |
self hideHelp. |
1535
a9fcabccabb3
separated into flyByHelp and activeHelp
Claus Gittinger <cg@exept.de>
parents:
1502
diff
changeset
|
883 |
|
1543 | 884 |
applicationsOrTopViewsWithHelp isNil ifFalse:[ |
885 |
applicationsOrTopViewsWithHelp remove:anApp ifAbsent:nil. |
|
886 |
]. |
|
726 | 887 |
listeningForAll == true ifFalse:[ |
719
17fba5c2a167
allow applications to start activeHelp for
Claus Gittinger <cg@exept.de>
parents:
696
diff
changeset
|
888 |
applicationsOrTopViewsWithHelp size == 0 ifTrue:[ |
1535
a9fcabccabb3
separated into flyByHelp and activeHelp
Claus Gittinger <cg@exept.de>
parents:
1502
diff
changeset
|
889 |
self unlisten. |
719
17fba5c2a167
allow applications to start activeHelp for
Claus Gittinger <cg@exept.de>
parents:
696
diff
changeset
|
890 |
] |
17fba5c2a167
allow applications to start activeHelp for
Claus Gittinger <cg@exept.de>
parents:
696
diff
changeset
|
891 |
] |
17fba5c2a167
allow applications to start activeHelp for
Claus Gittinger <cg@exept.de>
parents:
696
diff
changeset
|
892 |
|
17fba5c2a167
allow applications to start activeHelp for
Claus Gittinger <cg@exept.de>
parents:
696
diff
changeset
|
893 |
"Created: / 26.10.1997 / 23:22:42 / cg" |
726 | 894 |
"Modified: / 29.10.1997 / 15:48:34 / cg" |
639 | 895 |
! ! |
896 |
||
338
071f92621e3b
oops - catching the terminateSignal is no good idea
Claus Gittinger <cg@exept.de>
parents:
330
diff
changeset
|
897 |
!ActiveHelp class methodsFor:'documentation'! |
138 | 898 |
|
3665 | 899 |
version |
900 |
^ '$Header$' |
|
901 |
! |
|
902 |
||
2779
b608ded19ff2
changed: #handleMouseIn:x:y:
Claus Gittinger <cg@exept.de>
parents:
2688
diff
changeset
|
903 |
version_CVS |
3507 | 904 |
^ '$Header$' |
138 | 905 |
! ! |
3197 | 906 |
|
3320 | 907 |
|
908 |
ActiveHelp initialize! |