author | Claus Gittinger <cg@exept.de> |
Sat, 27 Oct 2018 17:40:05 +0200 | |
changeset 4206 | 35bc97d489d7 |
parent 4167 | 3ebfb7658859 |
child 4225 | 280bf6bac009 |
permissions | -rw-r--r-- |
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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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! |
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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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" |
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|
303 |
FlyByHelp isActive |
f314814a3105
do not show help for inactive (background) views.
Claus Gittinger <cg@exept.de>
parents:
3333
diff
changeset
|
304 |
" |
233 | 305 |
|
306 |
"Modified: 27.4.1996 / 15:07:57 / cg" |
|
1892 | 307 |
! |
308 |
||
309 |
showTime |
|
2879 | 310 |
"set the number of seconds, a help messages is to be shown. |
3447 | 311 |
The default is 45 seconds. |
3333 | 312 |
0 means: show forever (i.e. until mouse is moved)" |
2879 | 313 |
|
3447 | 314 |
^ ShowTime ? 45 |
2879 | 315 |
|
316 |
"Modified: / 10-11-2010 / 12:29:44 / cg" |
|
633 | 317 |
! ! |
318 |
||
719
17fba5c2a167
allow applications to start activeHelp for
Claus Gittinger <cg@exept.de>
parents:
696
diff
changeset
|
319 |
!ActiveHelp class methodsFor:'start & stop'! |
59 | 320 |
|
321 |
start |
|
719
17fba5c2a167
allow applications to start activeHelp for
Claus Gittinger <cg@exept.de>
parents:
696
diff
changeset
|
322 |
"start activeHelp for all apps" |
233 | 323 |
|
2391 | 324 |
TheOneAndOnlyHelpListener notNil ifTrue:[ |
325 |
TheOneAndOnlyHelpListener stop. |
|
326 |
TheOneAndOnlyHelpListener := nil. |
|
327 |
]. |
|
328 |
||
59 | 329 |
TheOneAndOnlyHelpListener isNil ifTrue:[ |
233 | 330 |
TheOneAndOnlyHelpListener := self new. |
59 | 331 |
]. |
2391 | 332 |
TheOneAndOnlyHelpListener start. |
333 |
^ TheOneAndOnlyHelpListener |
|
59 | 334 |
|
335 |
" |
|
336 |
ActiveHelp start |
|
1535
a9fcabccabb3
separated into flyByHelp and activeHelp
Claus Gittinger <cg@exept.de>
parents:
1502
diff
changeset
|
337 |
FlyByHelp start |
59 | 338 |
" |
233 | 339 |
|
719
17fba5c2a167
allow applications to start activeHelp for
Claus Gittinger <cg@exept.de>
parents:
696
diff
changeset
|
340 |
"Modified: / 26.10.1997 / 23:16:54 / cg" |
17fba5c2a167
allow applications to start activeHelp for
Claus Gittinger <cg@exept.de>
parents:
696
diff
changeset
|
341 |
! |
17fba5c2a167
allow applications to start activeHelp for
Claus Gittinger <cg@exept.de>
parents:
696
diff
changeset
|
342 |
|
17fba5c2a167
allow applications to start activeHelp for
Claus Gittinger <cg@exept.de>
parents:
696
diff
changeset
|
343 |
startFor:anApplicationOrTopView |
17fba5c2a167
allow applications to start activeHelp for
Claus Gittinger <cg@exept.de>
parents:
696
diff
changeset
|
344 |
"start activeHelp for a single app" |
17fba5c2a167
allow applications to start activeHelp for
Claus Gittinger <cg@exept.de>
parents:
696
diff
changeset
|
345 |
|
17fba5c2a167
allow applications to start activeHelp for
Claus Gittinger <cg@exept.de>
parents:
696
diff
changeset
|
346 |
TheOneAndOnlyHelpListener isNil ifTrue:[ |
17fba5c2a167
allow applications to start activeHelp for
Claus Gittinger <cg@exept.de>
parents:
696
diff
changeset
|
347 |
TheOneAndOnlyHelpListener := self new. |
17fba5c2a167
allow applications to start activeHelp for
Claus Gittinger <cg@exept.de>
parents:
696
diff
changeset
|
348 |
]. |
17fba5c2a167
allow applications to start activeHelp for
Claus Gittinger <cg@exept.de>
parents:
696
diff
changeset
|
349 |
TheOneAndOnlyHelpListener listenFor:anApplicationOrTopView |
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 |
"Modified: / 26.10.1997 / 23:17:05 / cg" |
59 | 352 |
! |
353 |
||
354 |
stop |
|
719
17fba5c2a167
allow applications to start activeHelp for
Claus Gittinger <cg@exept.de>
parents:
696
diff
changeset
|
355 |
"stop activeHelp for all (except for individual apps)" |
233 | 356 |
|
59 | 357 |
TheOneAndOnlyHelpListener notNil ifTrue:[ |
2391 | 358 |
TheOneAndOnlyHelpListener stop. |
1535
a9fcabccabb3
separated into flyByHelp and activeHelp
Claus Gittinger <cg@exept.de>
parents:
1502
diff
changeset
|
359 |
TheOneAndOnlyHelpListener := nil. |
59 | 360 |
]. |
361 |
||
362 |
" |
|
363 |
ActiveHelp stop |
|
1543 | 364 |
FlyByHelp stop |
59 | 365 |
" |
233 | 366 |
|
719
17fba5c2a167
allow applications to start activeHelp for
Claus Gittinger <cg@exept.de>
parents:
696
diff
changeset
|
367 |
"Modified: / 26.10.1997 / 23:18:58 / cg" |
17fba5c2a167
allow applications to start activeHelp for
Claus Gittinger <cg@exept.de>
parents:
696
diff
changeset
|
368 |
! |
17fba5c2a167
allow applications to start activeHelp for
Claus Gittinger <cg@exept.de>
parents:
696
diff
changeset
|
369 |
|
17fba5c2a167
allow applications to start activeHelp for
Claus Gittinger <cg@exept.de>
parents:
696
diff
changeset
|
370 |
stopFor:anAppOrTopView |
17fba5c2a167
allow applications to start activeHelp for
Claus Gittinger <cg@exept.de>
parents:
696
diff
changeset
|
371 |
"stop activeHelp for a single app" |
17fba5c2a167
allow applications to start activeHelp for
Claus Gittinger <cg@exept.de>
parents:
696
diff
changeset
|
372 |
|
17fba5c2a167
allow applications to start activeHelp for
Claus Gittinger <cg@exept.de>
parents:
696
diff
changeset
|
373 |
TheOneAndOnlyHelpListener notNil ifTrue:[ |
17fba5c2a167
allow applications to start activeHelp for
Claus Gittinger <cg@exept.de>
parents:
696
diff
changeset
|
374 |
TheOneAndOnlyHelpListener unlistenFor:anAppOrTopView. |
17fba5c2a167
allow applications to start activeHelp for
Claus Gittinger <cg@exept.de>
parents:
696
diff
changeset
|
375 |
]. |
17fba5c2a167
allow applications to start activeHelp for
Claus Gittinger <cg@exept.de>
parents:
696
diff
changeset
|
376 |
|
17fba5c2a167
allow applications to start activeHelp for
Claus Gittinger <cg@exept.de>
parents:
696
diff
changeset
|
377 |
"Modified: / 26.10.1997 / 23:12:55 / cg" |
17fba5c2a167
allow applications to start activeHelp for
Claus Gittinger <cg@exept.de>
parents:
696
diff
changeset
|
378 |
"Created: / 26.10.1997 / 23:18:41 / cg" |
138 | 379 |
! ! |
380 |
||
338
071f92621e3b
oops - catching the terminateSignal is no good idea
Claus Gittinger <cg@exept.de>
parents:
330
diff
changeset
|
381 |
!ActiveHelp class methodsFor:'times'! |
138 | 382 |
|
383 |
delayTime:numberOfSeconds |
|
384 |
"set the delay (the time, the cursor has to be in the view |
|
385 |
before help is shown). The default is 2 seconds." |
|
386 |
||
387 |
DelayTime := numberOfSeconds |
|
388 |
||
389 |
" |
|
390 |
ActiveHelp delayTime:0.5 |
|
391 |
ActiveHelp delayTime:2 |
|
392 |
ActiveHelp delayTime:10 |
|
393 |
" |
|
59 | 394 |
! |
395 |
||
138 | 396 |
showTime:numberOfSeconds |
397 |
"set the number of seconds, a help messages is to be shown. |
|
3333 | 398 |
The default is 30 seconds. |
399 |
0 means: show forever (i.e. until mouse is moved)" |
|
138 | 400 |
|
401 |
ShowTime := numberOfSeconds |
|
402 |
||
403 |
" |
|
404 |
ActiveHelp showTime:10 |
|
405 |
ActiveHelp showTime:99999 |
|
406 |
ActiveHelp showTime:30 |
|
407 |
" |
|
2879 | 408 |
|
409 |
"Modified: / 10-11-2010 / 12:29:40 / cg" |
|
138 | 410 |
! ! |
411 |
||
2391 | 412 |
!ActiveHelp methodsFor:'event handling'! |
138 | 413 |
|
2473 | 414 |
buttonMotion:buttonAndModifierState x:x y:y view:aView |
1657 | 415 |
"handle motion events - prepare to show help" |
233 | 416 |
|
2782 | 417 |
|realViewUnderCursor realP| |
418 |
||
4153 | 419 |
"/ Debugging := true |
2473 | 420 |
buttonAndModifierState == 0 ifTrue:[ |
2783
cb3420e40ed1
changed: #buttonMotion:x:y:view:
Claus Gittinger <cg@exept.de>
parents:
2782
diff
changeset
|
421 |
"/ realViewUnderCursor := aView device viewFromPoint:(aView pointerPosition). |
cb3420e40ed1
changed: #buttonMotion:x:y:view:
Claus Gittinger <cg@exept.de>
parents:
2782
diff
changeset
|
422 |
"/ 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
|
423 |
"/ self handleMouseIn:realViewUnderCursor x:realP x y:realP y. |
3292 | 424 |
Debugging ifTrue:['motion' infoPrintCR]. |
2783
cb3420e40ed1
changed: #buttonMotion:x:y:view:
Claus Gittinger <cg@exept.de>
parents:
2782
diff
changeset
|
425 |
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
|
426 |
]. |
138 | 427 |
^ false |
4122 | 428 |
|
429 |
"Modified: / 11-06-2018 / 10:31:42 / Claus Gittinger" |
|
4153 | 430 |
"Modified (format): / 02-08-2018 / 16:12:45 / Claus Gittinger" |
138 | 431 |
! |
432 |
||
4123 | 433 |
handleMouseIn:aView x:x y:y |
434 |
"handle motion events - if the mousepointer left the |
|
435 |
previous helped view, hide the help" |
|
436 |
||
4134 | 437 |
"/ Debugging := true. |
438 |
"/ Debugging := false. |
|
4123 | 439 |
Debugging ifTrue:['mouse in' infoPrintCR]. |
440 |
(self interestedIn:aView) ifFalse:[ |
|
4134 | 441 |
Debugging ifTrue:[Timestamp now infoPrint. ' - not interested 0' infoPrintCR]. |
4123 | 442 |
^ self |
443 |
]. |
|
444 |
||
445 |
Error handle:[:ex | |
|
446 |
InfoPrinting == true ifTrue:[ |
|
447 |
'---------------------' infoPrintCR. |
|
448 |
ex description infoPrintCR. |
|
449 |
ex suspendedContext fullPrintAll. |
|
450 |
]. |
|
451 |
] do:[ |
|
452 |
|sensor| |
|
453 |
||
454 |
"/ self stopHelpDisplayProcess. |
|
455 |
Debugging ifTrue:['hideIf' infoPrintCR]. |
|
456 |
self hideIfPointerLeft:aView. |
|
457 |
||
458 |
"/ check again, in case the stop/hide changed something... |
|
459 |
(self interestedIn:aView) ifFalse:[ |
|
460 |
Debugging ifTrue:['not interested2' infoPrintCR]. |
|
461 |
^ self |
|
462 |
]. |
|
463 |
||
464 |
"/ if there is a sensor, let the view do it itself (in its process) |
|
465 |
(self targetViewInitiatesHelpViaSensor |
|
466 |
and:[ (sensor := aView sensor) notNil ]) |
|
467 |
ifTrue:[ |
|
4153 | 468 |
Debugging ifTrue:['target shows help' infoPrintCR]. |
4123 | 469 |
sensor flushEventsFor:self withType:#initiateHelpFor:at:. |
470 |
sensor |
|
471 |
pushUserEvent:#initiateHelpFor:at: for:self |
|
472 |
withArguments:(Array with:aView with:(x @ y)). |
|
473 |
] ifFalse:[ |
|
4153 | 474 |
Debugging ifTrue:['I show help' infoPrintCR]. |
4123 | 475 |
self initiateHelpFor:aView at:(x @ y). |
476 |
] |
|
477 |
]. |
|
478 |
||
4153 | 479 |
"Modified: / 02-08-2018 / 16:17:34 / Claus Gittinger" |
4123 | 480 |
! |
481 |
||
1591 | 482 |
keyPress:key x:x y:y view:view |
1535
a9fcabccabb3
separated into flyByHelp and activeHelp
Claus Gittinger <cg@exept.de>
parents:
1502
diff
changeset
|
483 |
"unconditionally hide the help view" |
233 | 484 |
|
4153 | 485 |
Debugging ifTrue:['key press: ' infoPrint. key infoPrintCR]. |
486 |
key == #Help ifTrue:[ |
|
487 |
self initiateHelpFor:view at:(x @ y). |
|
488 |
^ true. |
|
489 |
]. |
|
1535
a9fcabccabb3
separated into flyByHelp and activeHelp
Claus Gittinger <cg@exept.de>
parents:
1502
diff
changeset
|
490 |
self hideHelpIgnoringErrors. |
138 | 491 |
^ false |
233 | 492 |
|
4153 | 493 |
"Modified: / 27-04-1996 / 15:09:57 / cg" |
494 |
"Modified: / 02-08-2018 / 16:50:25 / Claus Gittinger" |
|
495 |
! |
|
496 |
||
497 |
keyRelease:key x:x y:y view:view |
|
498 |
"unconditionally hide the help view" |
|
499 |
||
500 |
Debugging ifTrue:['key release: ' infoPrint. key infoPrintCR]. |
|
501 |
key == #Help ifTrue:[ |
|
502 |
]. |
|
503 |
self hideHelpIgnoringErrors. |
|
504 |
^ false |
|
505 |
||
506 |
"Created: / 02-08-2018 / 16:16:19 / Claus Gittinger" |
|
138 | 507 |
! |
508 |
||
509 |
pointerEnter:state x:x y:y view:aView |
|
1657 | 510 |
"handle pointer entering a view; prepare to show help" |
233 | 511 |
|
1948
33eb423a6fd3
only act when no mouse-button is pressed
Claus Gittinger <cg@exept.de>
parents:
1909
diff
changeset
|
512 |
state == 0 ifTrue:[ |
33eb423a6fd3
only act when no mouse-button is pressed
Claus Gittinger <cg@exept.de>
parents:
1909
diff
changeset
|
513 |
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
|
514 |
]. |
1657 | 515 |
^ false |
138 | 516 |
! |
517 |
||
2371
4ab6c8c7bc03
flush enqueued help-activation event when we leave a view
Claus Gittinger <cg@exept.de>
parents:
2130
diff
changeset
|
518 |
pointerLeave:state view:aView |
233 | 519 |
"handle pointer leaving a view; hide help text" |
520 |
||
2371
4ab6c8c7bc03
flush enqueued help-activation event when we leave a view
Claus Gittinger <cg@exept.de>
parents:
2130
diff
changeset
|
521 |
|sensor| |
4ab6c8c7bc03
flush enqueued help-activation event when we leave a view
Claus Gittinger <cg@exept.de>
parents:
2130
diff
changeset
|
522 |
|
4ab6c8c7bc03
flush enqueued help-activation event when we leave a view
Claus Gittinger <cg@exept.de>
parents:
2130
diff
changeset
|
523 |
sensor := aView sensor. |
4ab6c8c7bc03
flush enqueued help-activation event when we leave a view
Claus Gittinger <cg@exept.de>
parents:
2130
diff
changeset
|
524 |
sensor notNil ifTrue:[ |
4ab6c8c7bc03
flush enqueued help-activation event when we leave a view
Claus Gittinger <cg@exept.de>
parents:
2130
diff
changeset
|
525 |
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
|
526 |
]. |
1535
a9fcabccabb3
separated into flyByHelp and activeHelp
Claus Gittinger <cg@exept.de>
parents:
1502
diff
changeset
|
527 |
self hideHelpIgnoringErrors. |
138 | 528 |
^ false |
2914
18cff2d0daff
change to only expect one single method to be (re)defined:
Claus Gittinger <cg@exept.de>
parents:
2879
diff
changeset
|
529 |
! |
18cff2d0daff
change to only expect one single method to be (re)defined:
Claus Gittinger <cg@exept.de>
parents:
2879
diff
changeset
|
530 |
|
18cff2d0daff
change to only expect one single method to be (re)defined:
Claus Gittinger <cg@exept.de>
parents:
2879
diff
changeset
|
531 |
processEvent:ev |
4134 | 532 |
DebuggingEvents == true ifTrue:[ |
3507 | 533 |
'event: ' infoPrint. ev class nameWithoutPrefix infoPrint. |
534 |
' view:' infoPrint. ev view infoPrintCR. |
|
3292 | 535 |
]. |
2914
18cff2d0daff
change to only expect one single method to be (re)defined:
Claus Gittinger <cg@exept.de>
parents:
2879
diff
changeset
|
536 |
(ev isPointerEnterLeaveEvent |
18cff2d0daff
change to only expect one single method to be (re)defined:
Claus Gittinger <cg@exept.de>
parents:
2879
diff
changeset
|
537 |
or:[ ev isButtonEvent |
18cff2d0daff
change to only expect one single method to be (re)defined:
Claus Gittinger <cg@exept.de>
parents:
2879
diff
changeset
|
538 |
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
|
539 |
^ ev dispatchWithViewArgumentTo:self |
18cff2d0daff
change to only expect one single method to be (re)defined:
Claus Gittinger <cg@exept.de>
parents:
2879
diff
changeset
|
540 |
]. |
18cff2d0daff
change to only expect one single method to be (re)defined:
Claus Gittinger <cg@exept.de>
parents:
2879
diff
changeset
|
541 |
^ false |
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 |
"Created: / 29-06-2011 / 18:22:43 / cg" |
4134 | 544 |
"Modified: / 19-06-2018 / 12:53:28 / Claus Gittinger" |
59 | 545 |
! ! |
546 |
||
2391 | 547 |
!ActiveHelp methodsFor:'help texts'! |
59 | 548 |
|
2130 | 549 |
helpTextFor:aView at:aDevicePointOrNil |
233 | 550 |
"retrieve helptext for aView as a string; |
3790 | 551 |
walk along the view's superView chain, |
100 | 552 |
asking models and views encountered while walking. |
553 |
The first one who understands and returns a nonNil answer to the |
|
233 | 554 |
#helpTextFor:at: or #helpTextFor: message ends this search and the |
100 | 555 |
returned string is returned." |
556 |
||
2130 | 557 |
|model app1 app2 text v sv topView domainPointOrNil| |
59 | 558 |
|
2130 | 559 |
aView transformation notNil ifTrue:[ |
560 |
domainPointOrNil := aView transformation applyInverseTo:aDevicePointOrNil. |
|
561 |
] ifFalse:[ |
|
562 |
domainPointOrNil := aDevicePointOrNil. |
|
563 |
]. |
|
564 |
||
3665 | 565 |
"/ done below |
566 |
"/ text := self helpTextFromView:aView at:domainPointOrNil. |
|
567 |
"/ text notNil ifTrue:[ ^ text ]. |
|
2076 | 568 |
|
1549
1b5274878f87
care for oldStyle views (StdSysViews)
Claus Gittinger <cg@exept.de>
parents:
1543
diff
changeset
|
569 |
((aView respondsTo:#application) |
1b5274878f87
care for oldStyle views (StdSysViews)
Claus Gittinger <cg@exept.de>
parents:
1543
diff
changeset
|
570 |
and:[ (app1 := aView application) notNil ]) ifTrue:[ |
2130 | 571 |
text := self helpTextFromModel:app1 view:aView at:domainPointOrNil. |
1549
1b5274878f87
care for oldStyle views (StdSysViews)
Claus Gittinger <cg@exept.de>
parents:
1543
diff
changeset
|
572 |
text notNil ifTrue:[ ^ text ]. |
1b5274878f87
care for oldStyle views (StdSysViews)
Claus Gittinger <cg@exept.de>
parents:
1543
diff
changeset
|
573 |
] ifFalse:[ |
1b5274878f87
care for oldStyle views (StdSysViews)
Claus Gittinger <cg@exept.de>
parents:
1543
diff
changeset
|
574 |
"/ old style (i.e. StandardSystemView ...) |
1b5274878f87
care for oldStyle views (StdSysViews)
Claus Gittinger <cg@exept.de>
parents:
1543
diff
changeset
|
575 |
topView := aView topView. |
3664 | 576 |
text := self helpTextFromModel:topView view:aView at:domainPointOrNil. |
577 |
text notNil ifTrue:[ ^ text ]. |
|
59 | 578 |
]. |
1549
1b5274878f87
care for oldStyle views (StdSysViews)
Claus Gittinger <cg@exept.de>
parents:
1543
diff
changeset
|
579 |
|
1535
a9fcabccabb3
separated into flyByHelp and activeHelp
Claus Gittinger <cg@exept.de>
parents:
1502
diff
changeset
|
580 |
(model := aView model) notNil ifTrue:[ |
a9fcabccabb3
separated into flyByHelp and activeHelp
Claus Gittinger <cg@exept.de>
parents:
1502
diff
changeset
|
581 |
model ~~ app1 ifTrue:[ |
2130 | 582 |
text := self helpTextFromModel:model view:aView at:domainPointOrNil. |
1535
a9fcabccabb3
separated into flyByHelp and activeHelp
Claus Gittinger <cg@exept.de>
parents:
1502
diff
changeset
|
583 |
text notNil ifTrue:[ ^ text ]. |
1502 | 584 |
]. |
1011
53514f2c18a7
also ask for helpTextAt:, when a motionEvent arrives.
Claus Gittinger <cg@exept.de>
parents:
728
diff
changeset
|
585 |
]. |
2130 | 586 |
text := self helpTextFromView:aView at:domainPointOrNil. |
3664 | 587 |
text notNil ifTrue:[ |
588 |
^ text |
|
589 |
]. |
|
59 | 590 |
|
591 |
"walk up the chain - maybe someone knows about its subview ..." |
|
592 |
v := aView. |
|
1502 | 593 |
[ |
594 |
(sv := v container) notNil |
|
595 |
] whileTrue:[ |
|
1535
a9fcabccabb3
separated into flyByHelp and activeHelp
Claus Gittinger <cg@exept.de>
parents:
1502
diff
changeset
|
596 |
(model := sv model) notNil ifTrue:[ |
2130 | 597 |
text := self helpTextFromModel:model view:aView at:domainPointOrNil. |
1502 | 598 |
text notNil ifTrue:[ ^ text ]. |
1535
a9fcabccabb3
separated into flyByHelp and activeHelp
Claus Gittinger <cg@exept.de>
parents:
1502
diff
changeset
|
599 |
]. |
3665 | 600 |
"/ maybe the topView knows something about a higher-up widget... |
601 |
text := self helpTextFromModel:topView view:sv at:domainPointOrNil. |
|
602 |
text notNil ifTrue:[ ^ text ]. |
|
603 |
||
1535
a9fcabccabb3
separated into flyByHelp and activeHelp
Claus Gittinger <cg@exept.de>
parents:
1502
diff
changeset
|
604 |
text := self helpTextFromView:sv at:nil. |
a9fcabccabb3
separated into flyByHelp and activeHelp
Claus Gittinger <cg@exept.de>
parents:
1502
diff
changeset
|
605 |
text notNil ifTrue:[ ^ text ]. |
a9fcabccabb3
separated into flyByHelp and activeHelp
Claus Gittinger <cg@exept.de>
parents:
1502
diff
changeset
|
606 |
v := sv |
602 | 607 |
]. |
1535
a9fcabccabb3
separated into flyByHelp and activeHelp
Claus Gittinger <cg@exept.de>
parents:
1502
diff
changeset
|
608 |
|
4038 | 609 |
v notNil ifTrue:[ |
610 |
((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
|
611 |
(app2 ~~ app1) ifTrue:[ |
2130 | 612 |
text := self helpTextFromModel:app2 view:aView at:domainPointOrNil. |
1535
a9fcabccabb3
separated into flyByHelp and activeHelp
Claus Gittinger <cg@exept.de>
parents:
1502
diff
changeset
|
613 |
text notNil ifTrue:[ ^ text ]. |
a9fcabccabb3
separated into flyByHelp and activeHelp
Claus Gittinger <cg@exept.de>
parents:
1502
diff
changeset
|
614 |
] |
4038 | 615 |
]. |
616 |
((v respondsTo:#model) and:[(model := v model) notNil]) ifTrue:[ |
|
2130 | 617 |
text := self helpTextFromModel:model view:aView at:domainPointOrNil. |
1502 | 618 |
text notNil ifTrue:[ ^ text ]. |
4038 | 619 |
]. |
100 | 620 |
]. |
59 | 621 |
^ nil |
100 | 622 |
|
4038 | 623 |
"Modified: / 31-08-1995 / 20:38:00 / claus" |
624 |
"Modified: / 28-07-1998 / 01:47:27 / cg" |
|
625 |
"Modified: / 09-01-2018 / 16:46:37 / stefan" |
|
100 | 626 |
! |
627 |
||
3664 | 628 |
helpTextFromModel:aModelOrTopView view:aView at:aPointOrNil |
1502 | 629 |
"helper: ask aModel for its helpText." |
630 |
||
3664 | 631 |
|text| |
1502 | 632 |
|
1535
a9fcabccabb3
separated into flyByHelp and activeHelp
Claus Gittinger <cg@exept.de>
parents:
1502
diff
changeset
|
633 |
aPointOrNil notNil ifTrue:[ |
3664 | 634 |
(aModelOrTopView respondsTo:#helpTextFor:at:) ifTrue:[ |
635 |
text := aModelOrTopView helpTextFor:aView at:aPointOrNil. |
|
2076 | 636 |
text notNil ifTrue:[^ text]. |
1535
a9fcabccabb3
separated into flyByHelp and activeHelp
Claus Gittinger <cg@exept.de>
parents:
1502
diff
changeset
|
637 |
]. |
a9fcabccabb3
separated into flyByHelp and activeHelp
Claus Gittinger <cg@exept.de>
parents:
1502
diff
changeset
|
638 |
]. |
3664 | 639 |
(aModelOrTopView respondsTo:#helpTextFor:) ifTrue:[ |
640 |
text := aModelOrTopView helpTextFor:aView. |
|
641 |
text notNil ifTrue:[^ text]. |
|
1502 | 642 |
]. |
1535
a9fcabccabb3
separated into flyByHelp and activeHelp
Claus Gittinger <cg@exept.de>
parents:
1502
diff
changeset
|
643 |
^ text |
a9fcabccabb3
separated into flyByHelp and activeHelp
Claus Gittinger <cg@exept.de>
parents:
1502
diff
changeset
|
644 |
! |
a9fcabccabb3
separated into flyByHelp and activeHelp
Claus Gittinger <cg@exept.de>
parents:
1502
diff
changeset
|
645 |
|
a9fcabccabb3
separated into flyByHelp and activeHelp
Claus Gittinger <cg@exept.de>
parents:
1502
diff
changeset
|
646 |
helpTextFromView:aView at:aPointOrNil |
a9fcabccabb3
separated into flyByHelp and activeHelp
Claus Gittinger <cg@exept.de>
parents:
1502
diff
changeset
|
647 |
"helper: ask aView for its helpText." |
a9fcabccabb3
separated into flyByHelp and activeHelp
Claus Gittinger <cg@exept.de>
parents:
1502
diff
changeset
|
648 |
|
a9fcabccabb3
separated into flyByHelp and activeHelp
Claus Gittinger <cg@exept.de>
parents:
1502
diff
changeset
|
649 |
|text| |
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 |
aPointOrNil notNil ifTrue:[ |
a9fcabccabb3
separated into flyByHelp and activeHelp
Claus Gittinger <cg@exept.de>
parents:
1502
diff
changeset
|
652 |
(aView respondsTo:#helpTextAt:) ifTrue:[ |
a9fcabccabb3
separated into flyByHelp and activeHelp
Claus Gittinger <cg@exept.de>
parents:
1502
diff
changeset
|
653 |
text := aView helpTextAt:aPointOrNil. |
a9fcabccabb3
separated into flyByHelp and activeHelp
Claus Gittinger <cg@exept.de>
parents:
1502
diff
changeset
|
654 |
]. |
1502 | 655 |
]. |
1535
a9fcabccabb3
separated into flyByHelp and activeHelp
Claus Gittinger <cg@exept.de>
parents:
1502
diff
changeset
|
656 |
text isNil ifTrue:[ |
a9fcabccabb3
separated into flyByHelp and activeHelp
Claus Gittinger <cg@exept.de>
parents:
1502
diff
changeset
|
657 |
(aView respondsTo:#helpText) ifTrue:[ |
a9fcabccabb3
separated into flyByHelp and activeHelp
Claus Gittinger <cg@exept.de>
parents:
1502
diff
changeset
|
658 |
text := aView helpText. |
a9fcabccabb3
separated into flyByHelp and activeHelp
Claus Gittinger <cg@exept.de>
parents:
1502
diff
changeset
|
659 |
]. |
a9fcabccabb3
separated into flyByHelp and activeHelp
Claus Gittinger <cg@exept.de>
parents:
1502
diff
changeset
|
660 |
]. |
a9fcabccabb3
separated into flyByHelp and activeHelp
Claus Gittinger <cg@exept.de>
parents:
1502
diff
changeset
|
661 |
^ text. |
2391 | 662 |
! ! |
663 |
||
664 |
!ActiveHelp methodsFor:'private'! |
|
1502 | 665 |
|
138 | 666 |
hideIfPointerLeft:aView |
233 | 667 |
"hide help, if the pointer is not in aView" |
138 | 668 |
! |
669 |
||
719
17fba5c2a167
allow applications to start activeHelp for
Claus Gittinger <cg@exept.de>
parents:
696
diff
changeset
|
670 |
interestedIn:aView |
1033
3a56ba930052
care for nil view passed to #interestedIn.
Claus Gittinger <cg@exept.de>
parents:
1019
diff
changeset
|
671 |
"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
|
672 |
or in my list of apps)" |
719
17fba5c2a167
allow applications to start activeHelp for
Claus Gittinger <cg@exept.de>
parents:
696
diff
changeset
|
673 |
|
3347
f314814a3105
do not show help for inactive (background) views.
Claus Gittinger <cg@exept.de>
parents:
3333
diff
changeset
|
674 |
|app aViewsTopView device deviceFocusView| |
f314814a3105
do not show help for inactive (background) views.
Claus Gittinger <cg@exept.de>
parents:
3333
diff
changeset
|
675 |
|
4167 | 676 |
"/ Debugging := true |
677 |
"/ Debugging := false |
|
3347
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:[ |
4167 | 691 |
Debugging ifTrue:[ |
692 |
'TopView:' infoPrint. aViewsTopView infoPrint. |
|
693 |
' focus:' infoPrint. aViewsTopView graphicsDevice focusView infoPrint. |
|
694 |
' active:' infoPrint. aViewsTopView isActive infoPrintCR. |
|
695 |
]. |
|
4134 | 696 |
aViewsTopView isActive ifFalse:[ |
697 |
Debugging ifTrue:[ |
|
698 |
|graphicsDevice focusVw| |
|
699 |
||
700 |
'topview inactive' infoPrintCR. |
|
701 |
graphicsDevice := aViewsTopView graphicsDevice. |
|
702 |
graphicsDevice notNil ifTrue:[ |
|
703 |
focusVw := graphicsDevice focusView. |
|
704 |
'focusView: ' infoPrint. focusVw infoPrintCR. |
|
705 |
focusVw notNil ifTrue:[ |
|
706 |
'wGroup: ' infoPrint. focusVw windowGroup infoPrintCR. |
|
707 |
] |
|
708 |
] |
|
709 |
]. |
|
3417 | 710 |
^ false |
711 |
]. |
|
712 |
||
3348 | 713 |
"/ if none of the view's components has focus... |
714 |
(device := aViewsTopView graphicsDevice) notNil ifTrue:[ |
|
715 |
(deviceFocusView := device focusView) notNil ifTrue:[ |
|
716 |
deviceFocusView topView ~~ aViewsTopView ifTrue:[ |
|
717 |
"/ 'for inactive ' infoPrint. aView infoPrintCR. |
|
718 |
Debugging ifTrue:['inactive topView' infoPrintCR]. |
|
719 |
^ false |
|
720 |
]. |
|
3347
f314814a3105
do not show help for inactive (background) views.
Claus Gittinger <cg@exept.de>
parents:
3333
diff
changeset
|
721 |
]. |
f314814a3105
do not show help for inactive (background) views.
Claus Gittinger <cg@exept.de>
parents:
3333
diff
changeset
|
722 |
]. |
f314814a3105
do not show help for inactive (background) views.
Claus Gittinger <cg@exept.de>
parents:
3333
diff
changeset
|
723 |
]. |
1535
a9fcabccabb3
separated into flyByHelp and activeHelp
Claus Gittinger <cg@exept.de>
parents:
1502
diff
changeset
|
724 |
|
719
17fba5c2a167
allow applications to start activeHelp for
Claus Gittinger <cg@exept.de>
parents:
696
diff
changeset
|
725 |
listeningForAll == true ifTrue:[^ true]. |
1033
3a56ba930052
care for nil view passed to #interestedIn.
Claus Gittinger <cg@exept.de>
parents:
1019
diff
changeset
|
726 |
|
3395 | 727 |
applicationsOrTopViewsWithHelp isNil ifTrue:[ |
728 |
applicationsOrTopViewsWithHelp := WeakIdentitySet new. |
|
729 |
]. |
|
1106 | 730 |
(applicationsOrTopViewsWithHelp includesIdentical:aViewsTopView) ifTrue:[^ true]. |
731 |
app := aViewsTopView application. |
|
4134 | 732 |
app isNil ifTrue:[ |
733 |
Debugging ifTrue:['no app' infoPrintCR]. |
|
734 |
^ false. |
|
719
17fba5c2a167
allow applications to start activeHelp for
Claus Gittinger <cg@exept.de>
parents:
696
diff
changeset
|
735 |
]. |
4134 | 736 |
(applicationsOrTopViewsWithHelp includesIdentical:app) ifTrue:[^ true]. |
737 |
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
|
738 |
^ false |
17fba5c2a167
allow applications to start activeHelp for
Claus Gittinger <cg@exept.de>
parents:
696
diff
changeset
|
739 |
|
4134 | 740 |
"Created: / 26-10-1997 / 23:28:52 / cg" |
741 |
"Modified: / 08-08-1998 / 13:36:19 / cg" |
|
4167 | 742 |
"Modified (format): / 11-08-2018 / 08:15:40 / Claus Gittinger" |
2782 | 743 |
! |
744 |
||
745 |
targetViewInitiatesHelpViaSensor |
|
746 |
"true if the target view is asked to show the help via the sensor; |
|
747 |
false, if I do it myself synchronously." |
|
748 |
||
749 |
^ true |
|
59 | 750 |
! ! |
751 |
||
2391 | 752 |
!ActiveHelp methodsFor:'queries'! |
753 |
||
754 |
delayTime |
|
755 |
^ self class delayTime |
|
756 |
! |
|
757 |
||
758 |
showTime |
|
3333 | 759 |
"how long shall the help be shown; |
760 |
0 means: forever (until user moves the mouse); |
|
761 |
>0 means that number of seconds" |
|
762 |
||
2391 | 763 |
^ self class showTime |
764 |
! ! |
|
765 |
||
1768 | 766 |
!ActiveHelp methodsFor:'show & hide help'! |
59 | 767 |
|
768 |
hideHelp |
|
1535
a9fcabccabb3
separated into flyByHelp and activeHelp
Claus Gittinger <cg@exept.de>
parents:
1502
diff
changeset
|
769 |
"hide the help text - nothing done here" |
a9fcabccabb3
separated into flyByHelp and activeHelp
Claus Gittinger <cg@exept.de>
parents:
1502
diff
changeset
|
770 |
! |
a9fcabccabb3
separated into flyByHelp and activeHelp
Claus Gittinger <cg@exept.de>
parents:
1502
diff
changeset
|
771 |
|
a9fcabccabb3
separated into flyByHelp and activeHelp
Claus Gittinger <cg@exept.de>
parents:
1502
diff
changeset
|
772 |
hideHelpIgnoringErrors |
233 | 773 |
"hide the help text" |
774 |
||
1713
bc8a1d16e60f
Convert Object>>errorSignal -> Error
Stefan Vogel <sv@exept.de>
parents:
1657
diff
changeset
|
775 |
Error handle:[:ex | |
1535
a9fcabccabb3
separated into flyByHelp and activeHelp
Claus Gittinger <cg@exept.de>
parents:
1502
diff
changeset
|
776 |
ex description infoPrintCR. |
a9fcabccabb3
separated into flyByHelp and activeHelp
Claus Gittinger <cg@exept.de>
parents:
1502
diff
changeset
|
777 |
ex return |
a9fcabccabb3
separated into flyByHelp and activeHelp
Claus Gittinger <cg@exept.de>
parents:
1502
diff
changeset
|
778 |
] do:[ |
a9fcabccabb3
separated into flyByHelp and activeHelp
Claus Gittinger <cg@exept.de>
parents:
1502
diff
changeset
|
779 |
self hideHelp. |
59 | 780 |
]. |
781 |
! |
|
782 |
||
1535
a9fcabccabb3
separated into flyByHelp and activeHelp
Claus Gittinger <cg@exept.de>
parents:
1502
diff
changeset
|
783 |
initiateHelpFor:aView at:aPointOrNil |
634 | 784 |
"ask aView for helpText, passing x/y coordinates; |
785 |
start a timeout process to display this helpText after some delay; |
|
786 |
Normally used internally, but can also be used by widgets to force |
|
787 |
re-negotiation of the displayed helpText |
|
788 |
(for example in a menu, when the selection changes)" |
|
789 |
||
4061 | 790 |
"/ ActiveHelp stop |
4060 | 791 |
self class isActive ifFalse:[^ self]. |
792 |
||
4058 | 793 |
"/ in standalone apps, it is better to simply not show the help |
794 |
Error,BreakPointInterrupt handle:[:ex | |
|
795 |
Smalltalk isStandAloneApp ifFalse:[ex reject]. |
|
796 |
] do:[ |
|
797 |
self initiateHelpFor:aView at:aPointOrNil now:false |
|
798 |
]. |
|
637
8be64da7d932
views own help display is done immediately.
Claus Gittinger <cg@exept.de>
parents:
636
diff
changeset
|
799 |
|
8be64da7d932
views own help display is done immediately.
Claus Gittinger <cg@exept.de>
parents:
636
diff
changeset
|
800 |
"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
|
801 |
! |
8be64da7d932
views own help display is done immediately.
Claus Gittinger <cg@exept.de>
parents:
636
diff
changeset
|
802 |
|
1535
a9fcabccabb3
separated into flyByHelp and activeHelp
Claus Gittinger <cg@exept.de>
parents:
1502
diff
changeset
|
803 |
initiateHelpFor:aView at:aPointOrNil now:showItNow |
637
8be64da7d932
views own help display is done immediately.
Claus Gittinger <cg@exept.de>
parents:
636
diff
changeset
|
804 |
"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
|
805 |
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
|
806 |
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
|
807 |
re-negotiation of the displayed helpText |
8be64da7d932
views own help display is done immediately.
Claus Gittinger <cg@exept.de>
parents:
636
diff
changeset
|
808 |
(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
|
809 |
|
696 | 810 |
|text top app| |
634 | 811 |
|
1143 | 812 |
(self interestedIn:aView) ifFalse:[ |
813 |
^ self |
|
814 |
]. |
|
1535
a9fcabccabb3
separated into flyByHelp and activeHelp
Claus Gittinger <cg@exept.de>
parents:
1502
diff
changeset
|
815 |
|
a9fcabccabb3
separated into flyByHelp and activeHelp
Claus Gittinger <cg@exept.de>
parents:
1502
diff
changeset
|
816 |
text := self helpTextFor:aView at:aPointOrNil. |
637
8be64da7d932
views own help display is done immediately.
Claus Gittinger <cg@exept.de>
parents:
636
diff
changeset
|
817 |
lastHelpText = text ifTrue:[ |
8be64da7d932
views own help display is done immediately.
Claus Gittinger <cg@exept.de>
parents:
636
diff
changeset
|
818 |
^ self |
8be64da7d932
views own help display is done immediately.
Claus Gittinger <cg@exept.de>
parents:
636
diff
changeset
|
819 |
]. |
8be64da7d932
views own help display is done immediately.
Claus Gittinger <cg@exept.de>
parents:
636
diff
changeset
|
820 |
|
1535
a9fcabccabb3
separated into flyByHelp and activeHelp
Claus Gittinger <cg@exept.de>
parents:
1502
diff
changeset
|
821 |
"/ let application show the help |
728 | 822 |
"/ (i.e. in its own information area) |
1535
a9fcabccabb3
separated into flyByHelp and activeHelp
Claus Gittinger <cg@exept.de>
parents:
1502
diff
changeset
|
823 |
"/ nil-text is also passed down, to give it a chance |
728 | 824 |
"/ to clean its infoDisplay. |
637
8be64da7d932
views own help display is done immediately.
Claus Gittinger <cg@exept.de>
parents:
636
diff
changeset
|
825 |
|
728 | 826 |
top := aView topView. |
827 |
(app := aView application) notNil ifTrue:[ |
|
1019
862f095da4ac
#showHelp:for: renamed to #showActiveHelp:for:
Claus Gittinger <cg@exept.de>
parents:
1011
diff
changeset
|
828 |
(app showActiveHelp:text for:aView) ifTrue:[ |
728 | 829 |
lastHelpText := text. |
632
844b1aaf3eeb
provide access to the current activeHelp instance
Claus Gittinger <cg@exept.de>
parents:
602
diff
changeset
|
830 |
] |
844b1aaf3eeb
provide access to the current activeHelp instance
Claus Gittinger <cg@exept.de>
parents:
602
diff
changeset
|
831 |
]. |
1535
a9fcabccabb3
separated into flyByHelp and activeHelp
Claus Gittinger <cg@exept.de>
parents:
1502
diff
changeset
|
832 |
! |
59 | 833 |
|
1535
a9fcabccabb3
separated into flyByHelp and activeHelp
Claus Gittinger <cg@exept.de>
parents:
1502
diff
changeset
|
834 |
stopHelpDisplayProcess |
59 | 835 |
! ! |
836 |
||
719
17fba5c2a167
allow applications to start activeHelp for
Claus Gittinger <cg@exept.de>
parents:
696
diff
changeset
|
837 |
!ActiveHelp methodsFor:'start & stop'! |
17fba5c2a167
allow applications to start activeHelp for
Claus Gittinger <cg@exept.de>
parents:
696
diff
changeset
|
838 |
|
17fba5c2a167
allow applications to start activeHelp for
Claus Gittinger <cg@exept.de>
parents:
696
diff
changeset
|
839 |
listenFor:anAppOrTopView |
17fba5c2a167
allow applications to start activeHelp for
Claus Gittinger <cg@exept.de>
parents:
696
diff
changeset
|
840 |
"start listening" |
17fba5c2a167
allow applications to start activeHelp for
Claus Gittinger <cg@exept.de>
parents:
696
diff
changeset
|
841 |
|
17fba5c2a167
allow applications to start activeHelp for
Claus Gittinger <cg@exept.de>
parents:
696
diff
changeset
|
842 |
applicationsOrTopViewsWithHelp isNil ifTrue:[ |
17fba5c2a167
allow applications to start activeHelp for
Claus Gittinger <cg@exept.de>
parents:
696
diff
changeset
|
843 |
applicationsOrTopViewsWithHelp := WeakIdentitySet new. |
17fba5c2a167
allow applications to start activeHelp for
Claus Gittinger <cg@exept.de>
parents:
696
diff
changeset
|
844 |
]. |
17fba5c2a167
allow applications to start activeHelp for
Claus Gittinger <cg@exept.de>
parents:
696
diff
changeset
|
845 |
applicationsOrTopViewsWithHelp add:anAppOrTopView. |
17fba5c2a167
allow applications to start activeHelp for
Claus Gittinger <cg@exept.de>
parents:
696
diff
changeset
|
846 |
super listen. |
639 | 847 |
|
719
17fba5c2a167
allow applications to start activeHelp for
Claus Gittinger <cg@exept.de>
parents:
696
diff
changeset
|
848 |
"Created: / 26.10.1997 / 23:20:47 / cg" |
17fba5c2a167
allow applications to start activeHelp for
Claus Gittinger <cg@exept.de>
parents:
696
diff
changeset
|
849 |
"Modified: / 26.10.1997 / 23:21:10 / cg" |
17fba5c2a167
allow applications to start activeHelp for
Claus Gittinger <cg@exept.de>
parents:
696
diff
changeset
|
850 |
! |
17fba5c2a167
allow applications to start activeHelp for
Claus Gittinger <cg@exept.de>
parents:
696
diff
changeset
|
851 |
|
17fba5c2a167
allow applications to start activeHelp for
Claus Gittinger <cg@exept.de>
parents:
696
diff
changeset
|
852 |
listenForAll |
17fba5c2a167
allow applications to start activeHelp for
Claus Gittinger <cg@exept.de>
parents:
696
diff
changeset
|
853 |
"start listening" |
17fba5c2a167
allow applications to start activeHelp for
Claus Gittinger <cg@exept.de>
parents:
696
diff
changeset
|
854 |
|
17fba5c2a167
allow applications to start activeHelp for
Claus Gittinger <cg@exept.de>
parents:
696
diff
changeset
|
855 |
listeningForAll := true. |
17fba5c2a167
allow applications to start activeHelp for
Claus Gittinger <cg@exept.de>
parents:
696
diff
changeset
|
856 |
super listen. |
17fba5c2a167
allow applications to start activeHelp for
Claus Gittinger <cg@exept.de>
parents:
696
diff
changeset
|
857 |
|
17fba5c2a167
allow applications to start activeHelp for
Claus Gittinger <cg@exept.de>
parents:
696
diff
changeset
|
858 |
"Modified: / 28.6.1997 / 15:07:02 / cg" |
17fba5c2a167
allow applications to start activeHelp for
Claus Gittinger <cg@exept.de>
parents:
696
diff
changeset
|
859 |
"Created: / 26.10.1997 / 23:19:30 / cg" |
17fba5c2a167
allow applications to start activeHelp for
Claus Gittinger <cg@exept.de>
parents:
696
diff
changeset
|
860 |
! |
17fba5c2a167
allow applications to start activeHelp for
Claus Gittinger <cg@exept.de>
parents:
696
diff
changeset
|
861 |
|
2391 | 862 |
start |
863 |
self listenForAll |
|
864 |
! |
|
865 |
||
866 |
stop |
|
867 |
self unlistenAll |
|
868 |
! |
|
869 |
||
719
17fba5c2a167
allow applications to start activeHelp for
Claus Gittinger <cg@exept.de>
parents:
696
diff
changeset
|
870 |
unlistenAll |
639 | 871 |
"stop listening" |
872 |
||
873 |
self hideHelp. |
|
1535
a9fcabccabb3
separated into flyByHelp and activeHelp
Claus Gittinger <cg@exept.de>
parents:
1502
diff
changeset
|
874 |
|
719
17fba5c2a167
allow applications to start activeHelp for
Claus Gittinger <cg@exept.de>
parents:
696
diff
changeset
|
875 |
listeningForAll := false. |
17fba5c2a167
allow applications to start activeHelp for
Claus Gittinger <cg@exept.de>
parents:
696
diff
changeset
|
876 |
applicationsOrTopViewsWithHelp size == 0 ifTrue:[ |
1535
a9fcabccabb3
separated into flyByHelp and activeHelp
Claus Gittinger <cg@exept.de>
parents:
1502
diff
changeset
|
877 |
self unlisten. |
719
17fba5c2a167
allow applications to start activeHelp for
Claus Gittinger <cg@exept.de>
parents:
696
diff
changeset
|
878 |
] |
17fba5c2a167
allow applications to start activeHelp for
Claus Gittinger <cg@exept.de>
parents:
696
diff
changeset
|
879 |
|
17fba5c2a167
allow applications to start activeHelp for
Claus Gittinger <cg@exept.de>
parents:
696
diff
changeset
|
880 |
"Created: / 26.10.1997 / 23:14:17 / cg" |
17fba5c2a167
allow applications to start activeHelp for
Claus Gittinger <cg@exept.de>
parents:
696
diff
changeset
|
881 |
"Modified: / 26.10.1997 / 23:23:04 / cg" |
17fba5c2a167
allow applications to start activeHelp for
Claus Gittinger <cg@exept.de>
parents:
696
diff
changeset
|
882 |
! |
639 | 883 |
|
719
17fba5c2a167
allow applications to start activeHelp for
Claus Gittinger <cg@exept.de>
parents:
696
diff
changeset
|
884 |
unlistenFor:anApp |
17fba5c2a167
allow applications to start activeHelp for
Claus Gittinger <cg@exept.de>
parents:
696
diff
changeset
|
885 |
"stop listening for an app" |
17fba5c2a167
allow applications to start activeHelp for
Claus Gittinger <cg@exept.de>
parents:
696
diff
changeset
|
886 |
|
17fba5c2a167
allow applications to start activeHelp for
Claus Gittinger <cg@exept.de>
parents:
696
diff
changeset
|
887 |
self hideHelp. |
1535
a9fcabccabb3
separated into flyByHelp and activeHelp
Claus Gittinger <cg@exept.de>
parents:
1502
diff
changeset
|
888 |
|
1543 | 889 |
applicationsOrTopViewsWithHelp isNil ifFalse:[ |
890 |
applicationsOrTopViewsWithHelp remove:anApp ifAbsent:nil. |
|
891 |
]. |
|
726 | 892 |
listeningForAll == true ifFalse:[ |
719
17fba5c2a167
allow applications to start activeHelp for
Claus Gittinger <cg@exept.de>
parents:
696
diff
changeset
|
893 |
applicationsOrTopViewsWithHelp size == 0 ifTrue:[ |
1535
a9fcabccabb3
separated into flyByHelp and activeHelp
Claus Gittinger <cg@exept.de>
parents:
1502
diff
changeset
|
894 |
self unlisten. |
719
17fba5c2a167
allow applications to start activeHelp for
Claus Gittinger <cg@exept.de>
parents:
696
diff
changeset
|
895 |
] |
17fba5c2a167
allow applications to start activeHelp for
Claus Gittinger <cg@exept.de>
parents:
696
diff
changeset
|
896 |
] |
17fba5c2a167
allow applications to start activeHelp for
Claus Gittinger <cg@exept.de>
parents:
696
diff
changeset
|
897 |
|
17fba5c2a167
allow applications to start activeHelp for
Claus Gittinger <cg@exept.de>
parents:
696
diff
changeset
|
898 |
"Created: / 26.10.1997 / 23:22:42 / cg" |
726 | 899 |
"Modified: / 29.10.1997 / 15:48:34 / cg" |
639 | 900 |
! ! |
901 |
||
338
071f92621e3b
oops - catching the terminateSignal is no good idea
Claus Gittinger <cg@exept.de>
parents:
330
diff
changeset
|
902 |
!ActiveHelp class methodsFor:'documentation'! |
138 | 903 |
|
3665 | 904 |
version |
905 |
^ '$Header$' |
|
906 |
! |
|
907 |
||
2779
b608ded19ff2
changed: #handleMouseIn:x:y:
Claus Gittinger <cg@exept.de>
parents:
2688
diff
changeset
|
908 |
version_CVS |
3507 | 909 |
^ '$Header$' |
138 | 910 |
! ! |
3197 | 911 |
|
3320 | 912 |
|
913 |
ActiveHelp initialize! |