From c03c9f8b886c0e8eca5a701c0ca941e05e0b6285 Mon Sep 17 00:00:00 2001
From: Eugen Wissner <belka@caraus.de>
Date: Fri, 21 Nov 2025 22:20:10 +0100
Subject: Add pharo tiny blog

---
 .../TBPostsListComponent.class.st                  | 142 +++++++++++++++++++++
 1 file changed, 142 insertions(+)
 create mode 100644 pharo-mooc/tiny-blog/src/TinyBlog-Components/TBPostsListComponent.class.st

(limited to 'pharo-mooc/tiny-blog/src/TinyBlog-Components/TBPostsListComponent.class.st')

diff --git a/pharo-mooc/tiny-blog/src/TinyBlog-Components/TBPostsListComponent.class.st b/pharo-mooc/tiny-blog/src/TinyBlog-Components/TBPostsListComponent.class.st
new file mode 100644
index 0000000..82a9a73
--- /dev/null
+++ b/pharo-mooc/tiny-blog/src/TinyBlog-Components/TBPostsListComponent.class.st
@@ -0,0 +1,142 @@
+Class {
+	#name : 'TBPostsListComponent',
+	#superclass : 'TBScreenComponent',
+	#instVars : [
+		'postComponents',
+		'currentCategory',
+		'showLoginError'
+	],
+	#category : 'TinyBlog-Components',
+	#package : 'TinyBlog-Components'
+}
+
+{ #category : 'rendering' }
+TBPostsListComponent >> basicRenderCategoriesOn: html [
+	html render: self categoriesComponent
+]
+
+{ #category : 'rendering' }
+TBPostsListComponent >> basicRenderPostsOn: html [
+	self readSelectedPosts do: [ :p | html render: (self postComponentFor: p) ]
+]
+
+{ #category : 'rendering' }
+TBPostsListComponent >> categoriesComponent [
+	^ TBCategoriesComponent
+		categories: self blog allCategories 
+		postsList: self
+]
+
+{ #category : 'initialization' }
+TBPostsListComponent >> children [
+	^ self postComponents, super children
+]
+
+{ #category : 'accessing' }
+TBPostsListComponent >> currentCategory [
+
+	^ currentCategory
+]
+
+{ #category : 'accessing' }
+TBPostsListComponent >> currentCategory: anObject [
+
+	currentCategory := anObject
+]
+
+{ #category : 'as yet unclassified' }
+TBPostsListComponent >> goToAdministrationView [
+	self call: TBAdminComponent new
+]
+
+{ #category : 'as yet unclassified' }
+TBPostsListComponent >> hasLoginError [
+	^ showLoginError ifNil: [ false ]
+]
+
+{ #category : 'initialization' }
+TBPostsListComponent >> initialize [ 
+	super initialize.
+	postComponents := OrderedCollection new
+]
+
+{ #category : 'as yet unclassified' }
+TBPostsListComponent >> loginErrorMessage [
+	^ 'Incorrect login and/or password'
+]
+
+{ #category : 'as yet unclassified' }
+TBPostsListComponent >> loginErrorOccurred [
+	showLoginError := true
+]
+
+{ #category : 'rendering' }
+TBPostsListComponent >> postComponentFor: aPost [
+	^ TBPostComponent new post: aPost
+]
+
+{ #category : 'initialization' }
+TBPostsListComponent >> postComponents [
+	postComponents := self readSelectedPosts
+	collect: [ :each | TBPostComponent new post: each ].
+	^ postComponents
+]
+
+{ #category : 'initialization' }
+TBPostsListComponent >> readSelectedPosts [
+	^ self currentCategory
+		ifNil: [ self blog allVisibleBlogPosts ]
+		ifNotNil: [ self blog allVisibleBlogPostsFromCategory: self currentCategory ]
+]
+
+{ #category : 'rendering' }
+TBPostsListComponent >> renderCategoryColumnOn: html [
+	html column 
+		extraSmallSize: 12;
+		smallSize: 2;
+		mediumSize: 4;
+		with: [ self basicRenderCategoriesOn: html ]
+]
+
+{ #category : 'rendering' }
+TBPostsListComponent >> renderContentOn: html [
+	super renderContentOn: html.
+	html container: [
+		html row
+			with: [ 
+				html column 
+					extraSmallSize: 12;
+					smallSize: 2;
+					mediumSize: 4;
+					with: [ html render: self categoriesComponent ].
+		self renderPostColumnOn: html ] ]
+]
+
+{ #category : 'rendering' }
+TBPostsListComponent >> renderLoginErrorMessageIfAnyOn: html [
+	self hasLoginError ifTrue: [
+		showLoginError := false.
+		html alert
+			beDanger;
+			with: self loginErrorMessage ]
+]
+
+{ #category : 'rendering' }
+TBPostsListComponent >> renderPostColumnOn: html [
+	html column 
+		extraSmallSize: 12;
+		smallSize: 10;
+		mediumSize: 8;
+		with: [
+			self renderLoginErrorMessageIfAnyOn: html.
+			self basicRenderPostsOn: html ]
+]
+
+{ #category : 'as yet unclassified' }
+TBPostsListComponent >> tryConnectionWithLogin: login andPassword: password [
+	(login = self blog administrator login and: [ (SHA256 hashMessage: password) = self blog administrator password ])
+		ifTrue: [
+			self session currentAdmin: self blog administrator.
+			self goToAdministrationView ]
+		ifFalse: [ self loginErrorOccurred ]
+]
-- 
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